1 # Copyright
1992-2024 Free Software Foundation
, Inc.
3 # This
program is free software
; you can redistribute it and
/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation
; either version
3 of the License
, or
6 #
(at your option
) any later version.
8 # This
program is distributed in the hope that it will be useful
,
9 # but WITHOUT
ANY WARRANTY
; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License
for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this
program.
If not
, see
<http
://www.gnu.org
/licenses
/>.
16 # This file was written by Fred Fish.
(fnf@cygnus.com
)
18 # Generic gdb subroutines that should work
for any target.
If these
19 # need to be modified
for any target
, it can be done with a
variable
20 # or by passing arguments.
23 # Tests would fail
, logs
on get_compiler_info
() would be missing.
24 send_error
"`site.exp' not found, run `make site.exp'!\n"
28 #
Execute BODY
, if COND wrapped in proc WRAP.
29 # Instead of writing the verbose and repetitive
:
36 # cond_wrap $cond wrap $body
38 proc cond_wrap
{ cond wrap body
} {
48 # Helper function
for set_sanitizer
/set_sanitizer_default.
50 proc set_sanitizer_1
{ env_var var_id val default
} {
53 if { ![info exists env
($env_var
) ]
54 || $env
($env_var
) == "" } {
55 #
Set var_id
(env_var non
-existing
/ empty case
).
56 append env
($env_var
) $var_id
=$val
60 if { $default
&& [regexp $var_id
= $env
($env_var
)] } {
61 # Don
't set var_id. It's already
set by the user
, leave as is.
62 # Note that we could probably
get the same result by unconditionally
63 # prepending it
, but this way is less likely to cause confusion.
67 #
Set var_id
(env_var not empty case
).
68 append env
($env_var
) : $var_id
=$val
71 # Add VAR_ID
=VAL to ENV_VAR.
73 proc set_sanitizer
{ env_var var_id val
} {
74 set_sanitizer_1 $env_var $var_id $val
0
77 # Add VAR_ID
=VAL to ENV_VAR
, unless ENV_VAR already contains a VAR_ID setting.
79 proc set_sanitizer_default
{ env_var var_id val
} {
80 set_sanitizer_1 $env_var $var_id $val
1
83 set_sanitizer_default TSAN_OPTIONS suppressions \
84 $srcdir
/..
/tsan
-suppressions.txt
86 # When using ThreadSanitizer we may run into the case that a race is detected
,
87 # but we see the full stack
trace only
for one of the two accesses
, and the
88 # other one is showing
"failed to restore the stack".
89 # Try to prevent this by setting history_size to the maximum
(7) by default.
90 # See also the ThreadSanitizer docs
(
91 # https
://github.com
/google
/sanitizers
/wiki
/ThreadSanitizerFlags
).
92 set_sanitizer_default TSAN_OPTIONS history_size
7
94 #
If GDB is built with ASAN
(and because there are leaks
), it will output a
95 # leak
report when exiting as well as exit with a non
-zero
(failure
) status.
96 # This can affect tests that are sensitive to what GDB prints
on stderr or its
97 # exit
status. Add `detect_leaks
=0` to the ASAN_OPTIONS environment
variable
98 #
(which will affect
any spawned sub
-process
) to avoid this.
99 set_sanitizer_default ASAN_OPTIONS detect_leaks
0
101 # List of procs to run in gdb_finish.
102 set gdb_finish_hooks
[list
]
104 #
Variable in which we keep track of globals that are allowed to be live
106 array
set gdb_persistent_globals
{}
108 # Mark
variable names in
ARG as a persistent global
, and declare them as
109 # global in the calling
context. Can be used to rewrite
"global var_a var_b"
110 # into
"gdb_persistent_global var_a var_b".
111 proc gdb_persistent_global
{ args } {
112 global gdb_persistent_globals
113 foreach varname $
args {
114 uplevel
1 global $varname
115 set gdb_persistent_globals
($varname
) 1
119 # Mark
variable names in
ARG as a persistent global.
120 proc gdb_persistent_global_no_decl
{ args } {
121 global gdb_persistent_globals
122 foreach varname $
args {
123 set gdb_persistent_globals
($varname
) 1
127 # Override proc load_lib.
128 rename load_lib saved_load_lib
129 # Run the runtest version of load_lib
, and mark all variables that were
130 # created by this
call as persistent.
131 proc load_lib
{ file
} {
132 array
set known_global
{}
133 foreach varname
[info globals
] {
134 set known_globals
($varname
) 1
137 set code
[catch
"saved_load_lib $file" result]
139 foreach varname
[info globals
] {
140 if { ![info exists known_globals
($varname
)] } {
141 gdb_persistent_global_no_decl $varname
146 global errorInfo errorCode
147 return -code error
-errorinfo $errorInfo
-errorcode $errorCode $result
148 } elseif
{$code
> 1} {
149 return -code $code $result
155 load_lib libgloss.exp
157 load_lib gdb
-utils.exp
159 load_lib check
-test
-names.exp
161 # The path to the GDB binary to test.
164 # The data directory to use
for testing.
If this is the empty string
,
165 #
then we let GDB use its own configured data directory.
166 global GDB_DATA_DIRECTORY
168 # The spawn ID used
for I
/O interaction with the inferior.
For native
169 # targets
, or remote targets that can
do I
/O through GDB
170 #
(semi
-hosting
) this will be the same as the host
/GDB
's spawn ID.
171 # Otherwise, the board may set this to some other spawn ID. E.g.,
172 # when debugging with GDBserver, this is set to GDBserver's spawn ID
,
173 # so input
/output is done
on gdbserver
's tty.
174 global inferior_spawn_id
176 if [info exists TOOL_EXECUTABLE] {
177 set GDB $TOOL_EXECUTABLE
179 if ![info exists GDB] {
180 if ![is_remote host] {
181 set GDB [findfile $base_dir/../../gdb/gdb "$base_dir/../../gdb/gdb" [transform gdb]]
183 set GDB [transform gdb]
186 # If the user specifies GDB on the command line, and doesn't
187 # specify GDB_DATA_DIRECTORY
, then assume we
're testing an
188 # installed GDB, and let it use its own configured data directory.
189 if ![info exists GDB_DATA_DIRECTORY] {
190 set GDB_DATA_DIRECTORY ""
193 verbose "using GDB = $GDB" 2
195 # The data directory the testing GDB will use. By default, assume
196 # we're testing a non
-installed GDB in the build directory. Users may
197 # also explicitly override the
-data
-directory from the command line.
198 if ![info exists GDB_DATA_DIRECTORY
] {
199 set GDB_DATA_DIRECTORY
[file normalize
"[pwd]/../data-directory"]
201 verbose
"using GDB_DATA_DIRECTORY = $GDB_DATA_DIRECTORY" 2
203 # GDBFLAGS is available
for the user to
set on the command line.
204 # E.g. make check RUNTESTFLAGS
=GDBFLAGS
=mumble
205 # Testcases may use it to add additional flags
, but they must
:
206 #
- append new flags
, not overwrite
207 #
- restore the original value when done
209 if ![info exists GDBFLAGS
] {
212 verbose
"using GDBFLAGS = $GDBFLAGS" 2
214 # Append the
-data
-directory option to pass to GDB to CMDLINE and
215 #
return the resulting string.
If GDB_DATA_DIRECTORY is empty
,
216 # nothing is appended.
217 proc append_gdb_data_directory_option
{cmdline
} {
218 global GDB_DATA_DIRECTORY
220 if { $GDB_DATA_DIRECTORY
!= "" } {
221 return "$cmdline -data-directory $GDB_DATA_DIRECTORY"
227 # INTERNAL_GDBFLAGS contains flags that the testsuite requires.
228 # `
-nw
' disables any of the windowed interfaces.
229 # `-nx' disables ~
/.gdbinit
, so that it doesn
't interfere with the tests.
230 # `-iex "set {height,width} 0"' disables pagination.
231 # `
-data
-directory
' points to the data directory, usually in the build
233 global INTERNAL_GDBFLAGS
234 if ![info exists INTERNAL_GDBFLAGS] {
235 set INTERNAL_GDBFLAGS \
240 {-iex "set height 0"} \
241 {-iex "set width 0"}]]
243 # If DEBUGINFOD_URLS is set, gdb will try to download sources and
244 # debug info for f.i. system libraries. Prevent this.
245 if { [is_remote host] } {
246 # Setting environment variables on build has no effect on remote host,
247 # so handle this using "set debuginfod enabled off" instead.
248 set INTERNAL_GDBFLAGS \
249 "$INTERNAL_GDBFLAGS -iex \"set debuginfod enabled off\""
251 # See default_gdb_init.
254 set INTERNAL_GDBFLAGS [append_gdb_data_directory_option $INTERNAL_GDBFLAGS]
257 # The variable gdb_prompt is a regexp which matches the gdb prompt.
258 # Set it if it is not already set. This is also set by default_gdb_init
259 # but it's not clear what removing one of them will
break.
260 # See with_gdb_prompt
for more details
on prompt handling.
262 if {![info exists gdb_prompt
]} {
263 set gdb_prompt
"\\(gdb\\)"
266 # A regexp that matches the pagination prompt.
267 set pagination_prompt \
268 "--Type <RET> for more, q to quit, c to continue without paging--"
270 # The
variable fullname_syntax_POSIX is a regexp which matches a POSIX
271 # absolute path ie.
/foo
/
272 set fullname_syntax_POSIX
{/[^
\n]*/}
273 # The
variable fullname_syntax_UNC is a regexp which matches a Windows
274 # UNC path ie.
\\D
\foo\
275 set fullname_syntax_UNC
{\\\\[^
\\]+\\[^
\n]+\\}
276 # The
variable fullname_syntax_DOS_CASE is a regexp which matches a
277 # particular DOS case that GDB most likely will output
278 # ie.
\foo\
, but don
't match \\.*\
279 set fullname_syntax_DOS_CASE {\\[^\\][^\n]*\\}
280 # The variable fullname_syntax_DOS is a regexp which matches a DOS path
281 # ie. a:\foo\ && a:foo\
282 set fullname_syntax_DOS {[a-zA-Z]:[^\n]*\\}
283 # The variable fullname_syntax is a regexp which matches what GDB considers
284 # an absolute path. It is currently debatable if the Windows style paths
285 # d:foo and \abc should be considered valid as an absolute path.
286 # Also, the purpse of this regexp is not to recognize a well formed
287 # absolute path, but to say with certainty that a path is absolute.
288 set fullname_syntax "($fullname_syntax_POSIX|$fullname_syntax_UNC|$fullname_syntax_DOS_CASE|$fullname_syntax_DOS)"
290 # Needed for some tests under Cygwin.
294 if ![info exists env(EXEEXT)] {
297 set EXEEXT $env(EXEEXT)
302 set inferior_exited_re "(?:\\\[Inferior \[0-9\]+ \\(\[^\n\r\]*\\) exited)"
304 # A regular expression that matches the first word of a thread
305 # description after the thread number info 'info threads
'
306 set tdlabel_re "(process|Thread|LWP)"
308 # A regular expression that matches a value history number.
310 set valnum_re "\\\$$decimal"
312 # A regular expression that matches a breakpoint hit with a breakpoint
313 # having several code locations.
314 set bkptno_num_re "$decimal\\.$decimal"
316 # A regular expression that matches a breakpoint hit
317 # with one or several code locations.
318 set bkptno_numopt_re "($decimal\\.$decimal|$decimal)"
320 ### Only procedures should come after this point.
323 # gdb_version -- extract and print the version number of GDB
325 proc default_gdb_version {} {
327 global INTERNAL_GDBFLAGS GDBFLAGS
331 if {[info exists inotify_pid]} {
332 eval exec kill $inotify_pid
335 set output [remote_exec host "$GDB $INTERNAL_GDBFLAGS --version"]
336 set tmp [lindex $output 1]
338 regexp " \[0-9\]\[^ \t\n\r\]+" "$tmp" version
339 if ![is_remote host] {
340 clone_output "[which $GDB] version $version $INTERNAL_GDBFLAGS $GDBFLAGS\n"
342 clone_output "$GDB on remote host version $version $INTERNAL_GDBFLAGS $GDBFLAGS\n"
346 proc gdb_version { } {
347 return [default_gdb_version]
350 # gdb_unload -- unload a file if one is loaded
352 # Returns the same as gdb_test_multiple.
354 proc gdb_unload { {msg "file"} } {
357 return [gdb_test_multiple "file" $msg {
358 -re "A program is being debugged already.\r\nAre you sure you want to change the file. .y or n. $" {
359 send_gdb "y\n" answer
363 -re "No executable file now\\.\r\n" {
367 -re "Discard symbol table from `.*'. .y or n. $
" {
368 send_gdb
"y\n" answer
372 -re
-wrap
"No symbol file now\\." {
378 # Many of the tests depend
on setting breakpoints at various places and
379 # running until that breakpoint is reached. At times
, we want to start
380 # with a clean
-slate with respect to breakpoints
, so this utility proc
381 # lets us
do this without duplicating this code everywhere.
384 proc delete_breakpoints
{} {
387 # we need a larger timeout value here or this thing just confuses
388 # itself. May need a better implementation
if possible.
- guo
392 set msg
"delete all breakpoints, watchpoints, tracepoints, and catchpoints in delete_breakpoints"
394 gdb_test_multiple
"delete breakpoints" "$msg" {
395 -re
"Delete all breakpoints, watchpoints, tracepoints, and catchpoints.*y or n.*$" {
396 send_gdb
"y\n" answer
399 -re
"$gdb_prompt $" {
405 # Confirm with
"info breakpoints".
407 set msg
"info breakpoints"
408 gdb_test_multiple $msg $msg
{
409 -re
"No breakpoints, watchpoints, tracepoints, or catchpoints..*$gdb_prompt $" {
412 -re
"$gdb_prompt $" {
418 perror
"breakpoints not deleted"
422 # Returns true iff the target supports using the
"run" command.
424 proc target_can_use_run_cmd
{ {target_description
""} } {
425 if { $target_description
== "" } {
427 } elseif
{ $target_description
== "core" } {
428 # We could try to figure this out by issuing an
"info target" and
429 # checking
for "Local core dump file:", but it would mean the proc
430 # would start requiring a current target. Also
, uses
while gdb
431 # produces non
-standard output due to
, say annotations would
432 # have to be moved around or eliminated
, which would further
limit
436 error
"invalid argument: $target_description"
439 if [target_info
exists use_gdb_stub
] {
440 # In this case
, when we
connect, the inferior is already
445 if { $have_core
&& [target_info gdb_protocol
] == "extended-remote" } {
446 # In this case
, when we
connect, the inferior is not running but
447 # cannot be made to run.
455 # Generic run command.
457 #
Return 0 if we could start the
program, -1 if we could not.
459 # The second pattern below matches up to the first newline
*only
*.
460 # Using ``.
*$
'' could swallow up output that we attempt to match
463 # INFERIOR_ARGS is passed as arguments to the start command
, so may contain
464 # inferior arguments.
466 # N.B. This function does not wait
for gdb to
return to the prompt
,
467 # that is the caller
's responsibility.
469 proc gdb_run_cmd { {inferior_args {}} } {
470 global gdb_prompt use_gdb_stub
472 foreach command [gdb_init_commands] {
473 send_gdb "$command\n"
475 -re "$gdb_prompt $" { }
477 perror "gdb_init_command for target failed"
484 if [target_info exists gdb,do_reload_on_run] {
485 if { [gdb_reload $inferior_args] != 0 } {
488 send_gdb "continue\n"
490 -re "Continu\[^\r\n\]*\[\r\n\]" {}
496 if [target_info exists gdb,start_symbol] {
497 set start [target_info gdb,start_symbol]
501 send_gdb "jump *$start\n"
503 while { $start_attempt } {
504 # Cap (re)start attempts at three to ensure that this loop
505 # always eventually fails. Don't worry about trying to be
506 # clever and not send a command when it has failed.
507 if [expr $start_attempt
> 3] {
508 perror
"Jump to start() failed (retry count exceeded)"
511 set start_attempt
[expr $start_attempt
+ 1]
513 -re
"Continuing at \[^\r\n\]*\[\r\n\]" {
516 -re
"No symbol \"_start\" in current.*$gdb_prompt $" {
517 perror
"Can't find start symbol to run in gdb_run"
520 -re
"No symbol \"start\" in current.*$gdb_prompt $" {
521 send_gdb
"jump *_start\n"
523 -re
"No symbol.*context.*$gdb_prompt $" {
526 -re
"Line.* Jump anyway.*y or n. $" {
527 send_gdb
"y\n" answer
529 -re
"The program is not being run.*$gdb_prompt $" {
530 if { [gdb_reload $inferior_args
] != 0 } {
533 send_gdb
"jump *$start\n"
536 perror
"Jump to start() failed (timeout)"
545 if [target_info
exists gdb
,do_reload_on_run
] {
546 if { [gdb_reload $inferior_args
] != 0 } {
550 send_gdb
"run $inferior_args\n"
551 # This doesn
't work quite right yet.
552 # Use -notransfer here so that test cases (like chng-sym.exp)
553 # may test for additional start-up messages.
555 -re "The program .* has been started already.*y or n. $" {
556 send_gdb "y\n" answer
559 -notransfer -re "Starting program: \[^\r\n\]*" {}
560 -notransfer -re "$gdb_prompt $" {
561 # There is no more input expected.
563 -notransfer -re "A problem internal to GDB has been detected" {
564 # Let caller handle this.
571 # Generic start command. Return 0 if we could start the program, -1
574 # INFERIOR_ARGS is passed as arguments to the start command, so may contain
575 # inferior arguments.
577 # N.B. This function does not wait for gdb to return to the prompt,
578 # that is the caller's responsibility.
580 proc gdb_start_cmd
{ {inferior_args
{}} } {
581 global gdb_prompt use_gdb_stub
583 foreach command
[gdb_init_commands
] {
584 send_gdb
"$command\n"
586 -re
"$gdb_prompt $" { }
588 perror
"gdb_init_command for target failed"
598 send_gdb
"start $inferior_args\n"
599 # Use
-notransfer here so that test cases
(like chng
-sym.exp
)
600 # may test
for additional start
-up messages.
602 -re
"The program .* has been started already.*y or n. $" {
603 send_gdb
"y\n" answer
606 -notransfer
-re
"Starting program: \[^\r\n\]*" {
609 -re
"$gdb_prompt $" { }
614 # Generic starti command.
Return 0 if we could start the
program, -1
617 # INFERIOR_ARGS is passed as arguments to the starti command
, so may contain
618 # inferior arguments.
620 # N.B. This function does not wait
for gdb to
return to the prompt
,
621 # that is the caller
's responsibility.
623 proc gdb_starti_cmd { {inferior_args {}} } {
624 global gdb_prompt use_gdb_stub
626 foreach command [gdb_init_commands] {
627 send_gdb "$command\n"
629 -re "$gdb_prompt $" { }
631 perror "gdb_init_command for target failed"
641 send_gdb "starti $inferior_args\n"
643 -re "The program .* has been started already.*y or n. $" {
644 send_gdb "y\n" answer
647 -re "Starting program: \[^\r\n\]*" {
654 # Set a breakpoint using LINESPEC.
656 # If there is an additional argument it is a list of options; the supported
657 # options are allow-pending, temporary, message, no-message and qualified.
659 # The result is 1 for success, 0 for failure.
661 # Note: The handling of message vs no-message is messed up, but it's based
662 #
on historical usage. By default this function does not print passes
,
664 # no
-message
: turns
off printing of fails
(and passes
, but they
're already off)
665 # message: turns on printing of passes (and fails, but they're already
on)
667 proc gdb_breakpoint
{ linespec
args } {
671 set pending_response n
672 if {[lsearch
-exact $
args allow
-pending
] != -1} {
673 set pending_response y
676 set break_command
"break"
677 set break_message
"Breakpoint"
678 if {[lsearch
-exact $
args temporary
] != -1} {
679 set break_command
"tbreak"
680 set break_message
"Temporary breakpoint"
683 if {[lsearch
-exact $
args qualified
] != -1} {
684 append break_command
" -qualified"
689 set no_message_loc
[lsearch
-exact $
args no
-message
]
690 set message_loc
[lsearch
-exact $
args message
]
691 # The last one to appear in
args wins.
692 if { $no_message_loc
> $message_loc
} {
694 } elseif
{ $message_loc
> $no_message_loc
} {
698 set test_name
"gdb_breakpoint: set breakpoint at $linespec"
699 # The first two regexps are what we
get with
-g
, the third is without
-g.
700 gdb_test_multiple
"$break_command $linespec" $test_name {
701 -re
"$break_message \[0-9\]* at .*: file .*, line $decimal.\r\n$gdb_prompt $" {}
702 -re
"$break_message \[0-9\]*: file .*, line $decimal.\r\n$gdb_prompt $" {}
703 -re
"$break_message \[0-9\]* at .*$gdb_prompt $" {}
704 -re
"$break_message \[0-9\]* \\(.*\\) pending.*$gdb_prompt $" {
705 if {$pending_response
== "n"} {
712 -re
"Make breakpoint pending.*y or \\\[n\\\]. $" {
713 send_gdb
"$pending_response\n"
716 -re
"$gdb_prompt $" {
729 #
Set breakpoint at function and run gdb until it breaks there.
730 # Since this is the only breakpoint that will be
set, if it stops
731 # at a breakpoint
, we will assume it is the one we want. We can
't
732 # just compare to "function" because it might be a fully qualified,
733 # single quoted C++ function specifier.
735 # If there are additional arguments, pass them to gdb_breakpoint.
736 # We recognize no-message/message ourselves.
738 # no-message is messed up here, like gdb_breakpoint: to preserve
739 # historical usage fails are always printed by default.
740 # no-message: turns off printing of fails (and passes, but they're already
off)
741 # message
: turns
on printing of passes
(and fails
, but they
're already on)
743 proc runto { linespec args } {
745 global bkptno_numopt_re
752 set no_message_loc [lsearch -exact $args no-message]
753 set message_loc [lsearch -exact $args message]
754 # The last one to appear in args wins.
755 if { $no_message_loc > $message_loc } {
757 } elseif { $message_loc > $no_message_loc } {
761 set test_name "runto: run to $linespec"
763 if {![gdb_breakpoint $linespec {*}$args]} {
769 # the "at foo.c:36" output we get with -g.
770 # the "in func" output we get without -g.
772 -re "(?:Break|Temporary break).* at .*:$decimal.*$gdb_prompt $" {
778 -re "(?:Breakpoint|Temporary breakpoint) $bkptno_numopt_re, \[0-9xa-f\]* in .*$gdb_prompt $" {
784 -re "The target does not support running in non-stop mode.\r\n$gdb_prompt $" {
786 unsupported "non-stop mode not supported"
790 -re ".*A problem internal to GDB has been detected" {
791 # Always emit a FAIL if we encounter an internal error: internal
792 # errors are never expected.
793 fail "$test_name (GDB internal error)"
794 gdb_internal_error_resync
797 -re "$gdb_prompt $" {
805 fail "$test_name (eof)"
811 fail "$test_name (timeout)"
822 # Ask gdb to run until we hit a breakpoint at main.
824 # N.B. This function deletes all existing breakpoints.
825 # If you don't want that
, use gdb_start_cmd.
827 proc runto_main
{ } {
828 return [runto main qualified
]
831 ###
Continue, and expect to hit a breakpoint.
832 ###
Report a pass or fail
, depending
on whether it seems to have
833 ### worked. Use
NAME as part of the test
name; each
call to
834 ### continue_to_breakpoint should use a
NAME which is unique within
836 proc gdb_continue_to_breakpoint
{name {location_pattern .
*}} {
838 set full_name
"continue to breakpoint: $name"
840 set kfail_pattern
"Process record does not support instruction 0xfae64 at.*"
841 return [gdb_test_multiple
"continue" $full_name {
842 -re
"(?:Breakpoint|Temporary breakpoint) .* (at|in) $location_pattern\r\n$gdb_prompt $" {
845 -re
"(?:$kfail_pattern)\r\n$gdb_prompt $" {
846 kfail
"gdb/25038" $full_name
852 # gdb_internal_error_resync
:
854 # Answer the questions GDB asks after it reports an internal error
855 # until we
get back to a GDB prompt. Decline to quit the debugging
856 # session
, and decline to create a core file.
Return non
-zero
if the
859 # This procedure just answers whatever questions come up until it sees
860 # a GDB prompt
; it doesn
't require you to have matched the input up to
861 # any specific point. However, it only answers questions it sees in
862 # the output itself, so if you've matched a question
, you had better
863 # answer it yourself before calling this.
865 # You can use this function thus
:
869 #
-re
".*A problem internal to GDB has been detected" {
870 # gdb_internal_error_resync
875 proc gdb_internal_error_resync
{} {
878 verbose
-log "Resyncing due to internal error."
881 while {$
count < 10} {
883 -re
"Recursive internal problem\\." {
884 perror
"Could not resync from internal error (recursive internal problem)"
887 -re
"Quit this debugging session\\? \\(y or n\\) $" {
888 send_gdb
"n\n" answer
891 -re
"Create a core file of GDB\\? \\(y or n\\) $" {
892 send_gdb
"n\n" answer
895 -re
"$gdb_prompt $" {
896 # We
're resynchronized.
900 perror "Could not resync from internal error (timeout)"
904 perror "Could not resync from internal error (eof)"
909 perror "Could not resync from internal error (resync count exceeded)"
913 # Fill in the default prompt if PROMPT_REGEXP is empty.
915 # If WITH_ANCHOR is true and the default prompt is used, append a `$` at the end
916 # of the regexp, to anchor the match at the end of the buffer.
917 proc fill_in_default_prompt {prompt_regexp with_anchor} {
918 if { "$prompt_regexp" == "" } {
919 set prompt "$::gdb_prompt "
921 if { $with_anchor } {
927 return $prompt_regexp
930 # gdb_test_multiple COMMAND MESSAGE [ -prompt PROMPT_REGEXP] [ -lbl ]
932 # Send a command to gdb; test the result.
934 # COMMAND is the command to execute, send to GDB with send_gdb. If
935 # this is the null string no command is sent.
936 # MESSAGE is a message to be printed with the built-in failure patterns
937 # if one of them matches. If MESSAGE is empty COMMAND will be used.
938 # -prompt PROMPT_REGEXP specifies a regexp matching the expected prompt
939 # after the command output. If empty, defaults to "$gdb_prompt $".
940 # -lbl specifies that line-by-line matching will be used.
941 # EXPECT_ARGUMENTS will be fed to expect in addition to the standard
942 # patterns. Pattern elements will be evaluated in the caller's
943 #
context; action elements will be executed in the caller
's context.
944 # Unlike patterns for gdb_test, these patterns should generally include
945 # the final newline and prompt.
948 # 1 if the test failed, according to a built-in failure pattern
949 # 0 if only user-supplied patterns matched
950 # -1 if there was an internal error.
952 # You can use this function thus:
954 # gdb_test_multiple "print foo" "test foo" {
955 # -re "expected output 1" {
958 # -re "expected output 2" {
963 # Within action elements you can also make use of the variable
964 # gdb_test_name. This variable is setup automatically by
965 # gdb_test_multiple, and contains the value of MESSAGE. You can then
966 # write this, which is equivalent to the above:
968 # gdb_test_multiple "print foo" "test foo" {
969 # -re "expected output 1" {
970 # pass $gdb_test_name
972 # -re "expected output 2" {
973 # fail $gdb_test_name
977 # Like with "expect", you can also specify the spawn id to match with
978 # -i "$id". Interesting spawn ids are $inferior_spawn_id and
979 # $gdb_spawn_id. The former matches inferior I/O, while the latter
980 # matches GDB I/O. E.g.:
982 # send_inferior "hello\n"
983 # gdb_test_multiple "continue" "test echo" {
984 # -i "$inferior_spawn_id" -re "^hello\r\nhello\r\n$" {
987 # -i "$gdb_spawn_id" -re "Breakpoint.*$gdb_prompt $" {
988 # fail "hit breakpoint"
992 # The standard patterns, such as "Inferior exited..." and "A problem
993 # ...", all being implicitly appended to that list. These are always
994 # expected from $gdb_spawn_id. IOW, callers do not need to worry
995 # about resetting "-i" back to $gdb_spawn_id explicitly.
997 # In EXPECT_ARGUMENTS we can use a -wrap pattern flag, that wraps the regexp
998 # pattern as gdb_test wraps its message argument.
999 # This allows us to rewrite:
1000 # gdb_test <command> <pattern> <message>
1002 # gdb_test_multiple <command> <message> {
1003 # -re -wrap <pattern> {
1004 # pass $gdb_test_name
1007 # The special handling of '^
' that is available in gdb_test is also
1008 # supported in gdb_test_multiple when -wrap is used.
1010 # In EXPECT_ARGUMENTS, a pattern flag -early can be used. It makes sure the
1011 # pattern is inserted before any implicit pattern added by gdb_test_multiple.
1012 # Using this pattern flag, we can f.i. setup a kfail for an assertion failure
1013 # <assert> during gdb_continue_to_breakpoint by the rewrite:
1014 # gdb_continue_to_breakpoint <msg> <pattern>
1016 # set breakpoint_pattern "(?:Breakpoint|Temporary breakpoint) .* (at|in)"
1017 # gdb_test_multiple "continue" "continue to breakpoint: <msg>" {
1018 # -early -re "internal-error: <assert>" {
1019 # setup_kfail gdb/nnnnn "*-*-*"
1022 # -re "$breakpoint_pattern <pattern>\r\n$gdb_prompt $" {
1023 # pass $gdb_test_name
1027 proc gdb_test_multiple { command message args } {
1028 global verbose use_gdb_stub
1029 global gdb_prompt pagination_prompt
1032 global inferior_exited_re
1033 upvar timeout timeout
1034 upvar expect_out expect_out
1038 set prompt_regexp ""
1039 for {set i 0} {$i < [llength $args]} {incr i} {
1040 set arg [lindex $args $i]
1041 if { $arg == "-prompt" } {
1043 set prompt_regexp [lindex $args $i]
1044 } elseif { $arg == "-lbl" } {
1051 if { [expr $i + 1] < [llength $args] } {
1052 error "Too many arguments to gdb_test_multiple"
1053 } elseif { ![info exists user_code] } {
1054 error "Too few arguments to gdb_test_multiple"
1057 set prompt_regexp [fill_in_default_prompt $prompt_regexp true]
1059 if { $message == "" } {
1060 set message $command
1063 if [string match "*\[\r\n\]" $command] {
1064 error "Invalid trailing newline in \"$command\" command"
1067 if [string match "*\[\003\004\]" $command] {
1068 error "Invalid trailing control code in \"$command\" command"
1071 if [string match "*\[\r\n\]*" $message] {
1072 error "Invalid newline in \"$message\" test"
1076 && [regexp -nocase {^\s*(r|run|star|start|at|att|atta|attac|attach)\M} \
1078 error "gdbserver does not support $command without extended-remote"
1081 # TCL/EXPECT WART ALERT
1082 # Expect does something very strange when it receives a single braced
1083 # argument. It splits it along word separators and performs substitutions.
1084 # This means that { "[ab]" } is evaluated as "[ab]", but { "\[ab\]" } is
1085 # evaluated as "\[ab\]". But that's not how TCL normally works
; inside a
1086 # double
-quoted list item
, "\[ab\]" is just a long way of representing
1087 #
"[ab]", because the backslashes will be removed by lindex.
1089 # Unfortunately
, there appears to be no easy way to duplicate the splitting
1090 # that expect will
do from within TCL. And many places make use of the
1091 #
"\[0-9\]" construct, so we need to support that; and some places make use
1092 # of the
"[func]" construct, so we need to support that too. In order to
1093 #
get this right we have to substitute quoted list elements differently
1094 # from braced list elements.
1096 # We
do this roughly the same way that Expect does it. We have to use two
1097 # lists
, because
if we leave unquoted newlines in the
argument to uplevel
1098 # they
'll be treated as command separators, and if we escape newlines
1099 # we mangle newlines inside of command blocks. This assumes that the
1100 # input doesn't contain a pattern which contains actual embedded newlines
1103 regsub
-all
{\n} $
{user_code
} { } subst_code
1104 set subst_code
[uplevel list $subst_code
]
1106 set processed_code
""
1107 set early_processed_code
""
1108 # The
variable current_list holds the
name of the currently processed
1109 # list
, either processed_code or early_processed_code.
1110 set current_list
"processed_code"
1112 set expecting_action
0
1115 foreach item $user_code subst_item $subst_code
{
1116 if { $item
== "-n" || $item == "-notransfer" || $item == "-nocase" } {
1117 lappend $current_list $item
1120 if { $item
== "-indices" || $item == "-re" || $item == "-ex" } {
1121 lappend $current_list $item
1124 if { $item
== "-early" } {
1125 set current_list
"early_processed_code"
1128 if { $item
== "-timeout" || $item == "-i" } {
1130 lappend $current_list $item
1133 if { $item
== "-wrap" } {
1137 if { $expecting_arg
} {
1139 lappend $current_list $subst_item
1142 if { $expecting_action
} {
1143 lappend $current_list
"uplevel [list $item]"
1144 set expecting_action
0
1145 # Cosmetic
, no effect
on the list.
1146 append $current_list
"\n"
1147 # End the effect of
-early
, it only applies to one action.
1148 set current_list
"processed_code"
1151 set expecting_action
1
1152 if { $wrap_pattern
} {
1153 # Wrap subst_item as is done
for the gdb_test PATTERN
argument.
1154 if {[string range $subst_item
0 0] eq
"^"} {
1155 if {$command ne
""} {
1156 set command_regex
[string_to_regexp $command
]
1157 set subst_item
[string range $subst_item
1 end
]
1158 if {[string length
"$subst_item"] > 0} {
1159 # We have an output pattern
(other than the
'^'),
1160 # add a newline at the start
, this will eventually
1161 # sit between the command and the output pattern.
1162 set subst_item
"\r\n${subst_item}"
1164 set subst_item
"^${command_regex}${subst_item}"
1167 lappend $current_list \
1168 "(?:$subst_item)\r\n$prompt_regexp"
1171 lappend $current_list $subst_item
1173 if {$patterns
!= ""} {
1174 append patterns
"; "
1176 append patterns
"\"$subst_item\""
1179 # Also purely cosmetic.
1180 regsub
-all
{\r} $patterns
{\\r
} patterns
1181 regsub
-all
{\n} $patterns
{\\n
} patterns
1184 send_user
"Sending \"$command\" to gdb\n"
1185 send_user
"Looking to match \"$patterns\"\n"
1186 send_user
"Message is \"$message\"\n"
1190 set string
"${command}\n"
1191 if { $command
!= "" } {
1192 set multi_line_re
"\[\r\n\] *>"
1193 while { "$string" != "" } {
1194 set foo
[string first
"\n" "$string"]
1195 set len
[string length
"$string"]
1196 if { $foo
< [expr $len
- 1] } {
1197 set str
[string range
"$string" 0 $foo]
1198 if { [send_gdb
"$str"] != "" } {
1199 verbose
-log "Couldn't send $command to GDB."
1203 # since we
're checking if each line of the multi-line
1204 # command are 'accepted
' by GDB here,
1205 # we need to set -notransfer expect option so that
1206 # command output is not lost for pattern matching
1209 -notransfer -re "$multi_line_re$" { verbose "partial: match" 3 }
1210 timeout { verbose "partial: timeout" 3 }
1212 set string [string range "$string" [expr $foo + 1] end]
1213 set multi_line_re "$multi_line_re.*\[\r\n\] *>"
1218 if { "$string" != "" } {
1219 if { [send_gdb "$string"] != "" } {
1220 verbose -log "Couldn't send $command to GDB.
"
1227 set code $early_processed_code
1229 -re
".*A problem internal to GDB has been detected" {
1230 fail
"$message (GDB internal error)"
1231 gdb_internal_error_resync
1234 -re
"\\*\\*\\* DOSEXIT code.*" {
1235 if { $message
!= "" } {
1240 -re
"Corrupted shared library list.*$prompt_regexp" {
1241 fail
"$message (shared library list corrupted)"
1244 -re
"Invalid cast\.\r\nwarning: Probes-based dynamic linker interface failed.*$prompt_regexp" {
1245 fail
"$message (probes interface failure)"
1249 append code $processed_code
1251 # Reset the spawn id
, in case the processed code used
-i.
1257 -re
"Ending remote debugging.*$prompt_regexp" {
1259 warning
"Can`t communicate to remote target."
1265 -re
"Undefined\[a-z\]* command:.*$prompt_regexp" {
1266 perror
"Undefined command \"$command\"."
1270 -re
"Ambiguous command.*$prompt_regexp" {
1271 perror
"\"$command\" is not a unique command name."
1275 -re
"$inferior_exited_re with code \[0-9\]+.*$prompt_regexp" {
1276 if {![string match
"" $message]} {
1277 set errmsg
"$message (the program exited)"
1279 set errmsg
"$command (the program exited)"
1284 -re
"$inferior_exited_re normally.*$prompt_regexp" {
1285 if {![string match
"" $message]} {
1286 set errmsg
"$message (the program exited)"
1288 set errmsg
"$command (the program exited)"
1293 -re
"The program is not being run.*$prompt_regexp" {
1294 if {![string match
"" $message]} {
1295 set errmsg
"$message (the program is no longer running)"
1297 set errmsg
"$command (the program is no longer running)"
1302 -re
"\r\n$prompt_regexp" {
1303 if {![string match
"" $message]} {
1308 -re
"$pagination_prompt" {
1310 perror
"Window too small."
1314 -re
"\\((y or n|y or \\\[n\\\]|\\\[y\\\] or n)\\) " {
1315 send_gdb
"n\n" answer
1316 gdb_expect
-re
"$prompt_regexp"
1317 fail
"$message (got interactive prompt)"
1320 -re
"\\\[0\\\] cancel\r\n\\\[1\\\] all.*\r\n> $" {
1322 gdb_expect
-re
"$prompt_regexp"
1323 fail
"$message (got breakpoint menu)"
1329 perror
"GDB process no longer exists"
1330 set wait_status
[wait
-i $gdb_spawn_id
]
1331 verbose
-log "GDB process exited with wait status $wait_status"
1332 if { $message
!= "" } {
1339 if {$line_by_line
} {
1341 -re
"\r\n\[^\r\n\]*(?=\r\n)" {
1347 # Now patterns that apply to
any spawn id specified.
1351 perror
"Process no longer exists"
1352 if { $message
!= "" } {
1358 perror
"internal buffer is full."
1363 if {![string match
"" $message]} {
1364 fail
"$message (timeout)"
1370 # remote_expect calls the eof section
if there is an error
on the
1371 # expect
call. We already have eof sections above
, and we don
't
1372 # want them to get called in that situation. Since the last eof
1373 # section becomes the error section, here we define another eof
1374 # section, but with an empty spawn_id list, so that it won't ever
1378 # This comment is here because the eof section must not be
1379 # the empty string
, otherwise remote_expect won
't realize
1384 # Create gdb_test_name in the parent scope. If this variable
1385 # already exists, which it might if we have nested calls to
1386 # gdb_test_multiple, then preserve the old value, otherwise,
1387 # create a new variable in the parent scope.
1388 upvar gdb_test_name gdb_test_name
1389 if { [info exists gdb_test_name] } {
1390 set gdb_test_name_old "$gdb_test_name"
1392 set gdb_test_name "$message"
1395 set code [catch {gdb_expect $code} string]
1397 # Clean up the gdb_test_name variable. If we had a
1398 # previous value then restore it, otherwise, delete the variable
1399 # from the parent scope.
1400 if { [info exists gdb_test_name_old] } {
1401 set gdb_test_name "$gdb_test_name_old"
1407 global errorInfo errorCode
1408 return -code error -errorinfo $errorInfo -errorcode $errorCode $string
1409 } elseif {$code > 1} {
1410 return -code $code $string
1415 # Usage: gdb_test_multiline NAME INPUT RESULT {INPUT RESULT} ...
1416 # Run a test named NAME, consisting of multiple lines of input.
1417 # After each input line INPUT, search for result line RESULT.
1418 # Succeed if all results are seen; fail otherwise.
1420 proc gdb_test_multiline { name args } {
1423 foreach {input result} $args {
1425 if {[gdb_test_multiple $input "$name: input $inputnr: $input" {
1426 -re "($result)\r\n($gdb_prompt | *>)$" {
1437 # gdb_test [-prompt PROMPT_REGEXP] [-lbl]
1438 # COMMAND [PATTERN] [MESSAGE] [QUESTION RESPONSE]
1439 # Send a command to gdb; test the result.
1441 # COMMAND is the command to execute, send to GDB with send_gdb. If
1442 # this is the null string no command is sent.
1443 # PATTERN is the pattern to match for a PASS, and must NOT include the
1444 # \r\n sequence immediately before the gdb prompt (see -nonl below).
1445 # This argument may be omitted to just match the prompt, ignoring
1446 # whatever output precedes it. If PATTERN starts with '^
' then
1447 # PATTERN will be anchored such that it should match all output from
1449 # MESSAGE is an optional message to be printed. If this is
1450 # omitted, then the pass/fail messages use the command string as the
1451 # message. (If this is the empty string, then sometimes we don't
1452 #
call pass or fail at all
; I don
't understand this at all.)
1453 # QUESTION is a question GDB should ask in response to COMMAND, like
1454 # "are you sure?" If this is specified, the test fails if GDB
1455 # doesn't print the question.
1456 # RESPONSE is the response to send when QUESTION appears.
1458 #
-prompt PROMPT_REGEXP specifies a regexp matching the expected prompt
1459 # after the command output.
If empty
, defaults to
"$gdb_prompt $".
1460 #
-no
-prompt
-anchor specifies that
if the default prompt regexp is used
, it
1461 # should not be anchored at the end of the buffer. This means that the
1462 # pattern can match even
if there is stuff output after the prompt. Does not
1463 # have
any effect
if -prompt is specified.
1464 #
-lbl specifies that line
-by
-line matching will be used.
1465 #
-nopass specifies that a PASS should not be issued.
1466 #
-nonl specifies that no
\r\n sequence is expected between PATTERN
1467 # and the gdb prompt.
1470 #
1 if the test failed
,
1471 #
0 if the test passes
,
1472 #
-1 if there was an internal error.
1474 proc gdb_test
{ args } {
1476 upvar timeout timeout
1486 lassign $
args command pattern message question response
1488 # Can
't have a question without a response.
1489 if { $question != "" && $response == "" || [llength $args] > 5 } {
1490 error "Unexpected arguments: $args"
1493 if { $message == "" } {
1494 set message $command
1497 set prompt [fill_in_default_prompt $prompt [expr !${no-prompt-anchor}]]
1498 set nl [expr ${nonl} ? {""} : {"\r\n"}]
1502 # If the pattern starts with a '^
' then we want to match all the
1503 # output from COMMAND. To support this, here we inject an
1504 # additional pattern that matches the command immediately after
1506 if {[string range $pattern 0 0] eq "^"} {
1507 if {$command ne ""} {
1508 set command_regex [string_to_regexp $command]
1509 set pattern [string range $pattern 1 end]
1510 if {[string length "$pattern"] > 0} {
1511 # We have an output pattern (other than the '^
'), add a
1512 # newline at the start, this will eventually sit between the
1513 # command and the output pattern.
1514 set pattern "\r\n$pattern"
1516 set pattern "^${command_regex}${pattern}"
1522 -re "(?:$pattern)$nl$prompt" {
1523 if { $question != "" & !$saw_question} {
1525 } elseif {!$nopass} {
1531 if { $question != "" } {
1535 send_gdb "$response\n"
1541 set user_code [join $user_code]
1544 lappend opts "-prompt" "$prompt"
1549 return [gdb_test_multiple $command $message {*}$opts $user_code]
1552 # Return 1 if python version used is at least MAJOR.MINOR
1553 proc python_version_at_least { major minor } {
1554 set python_script {print (sys.version_info\[0\], sys.version_info\[1\])}
1556 set res [remote_exec host $::GDB \
1557 "$::INTERNAL_GDBFLAGS -batch -ex \"python $python_script\""]
1558 if { [lindex $res 0] != 0 } {
1559 error "Couldn't
get python version
"
1562 set python_version
[lindex $res
1]
1563 set python_version
[string trim $python_version
]
1565 regexp
{^
([0-9]+) ([0-9]+)$
} $python_version \
1566 dummy python_version_major python_version_minor
1568 return [version_compare
[list $major $minor
] \
1569 <= [list $python_version_major $python_version_minor
]]
1572 #
Return 1 if tcl version used is at least MAJOR.MINOR
1573 proc tcl_version_at_least
{ major minor
} {
1575 regexp
{^
([0-9]+)\.
([0-9]+)$
} $tcl_version \
1576 dummy tcl_version_major tcl_version_minor
1577 return [version_compare
[list $major $minor
] \
1578 <= [list $tcl_version_major $tcl_version_minor
]]
1581 if { [tcl_version_at_least
8 5] == 0 } {
1582 # lrepeat was added in tcl
8.5. Only add
if missing.
1583 proc lrepeat
{ n element
} {
1584 if { [string is
integer -strict $n
] == 0 } {
1585 error
"expected integer but got \"$n\""
1588 error
"bad count \"$n\": must be integer >= 0"
1591 for {set i
0} {$i
< $n
} {incr i
} {
1592 lappend res $element
1598 if { [tcl_version_at_least
8 6] == 0 } {
1599 # lmap was added in tcl
8.6. Only add
if missing.
1601 # Note that we only implement the simple variant
for now.
1602 proc lmap
{ varname list body
} {
1605 uplevel
1 "set $varname $val"
1606 lappend res
[uplevel
1 $body
]
1613 # gdb_test_no_output
[-prompt PROMPT_REGEXP
] [-nopass
] COMMAND
[MESSAGE
]
1614 # Send a command to GDB and verify that this command generated no output.
1616 # See gdb_test
for a description of the
-prompt
, -no
-prompt
-anchor
, -nopass
,
1617 # COMMAND
, and MESSAGE parameters.
1620 #
1 if the test failed
,
1621 #
0 if the test passes
,
1622 #
-1 if there was an internal error.
1624 proc gdb_test_no_output
{ args } {
1633 lassign $
args command message
1635 set prompt
[fill_in_default_prompt $prompt
[expr
!$
{no
-prompt
-anchor
}]]
1637 set command_regex
[string_to_regexp $command
]
1638 return [gdb_test_multiple $command $message
-prompt $prompt
{
1639 -re
"^$command_regex\r\n$prompt" {
1647 # Send a command and
then wait
for a sequence of outputs.
1648 # This is useful when the sequence is long and contains
".*", a single
1649 # regexp to match the entire output can
get a timeout much easier.
1651 # COMMAND is the command to
execute, send to GDB with send_gdb.
If
1652 # this is the null string no command is sent.
1653 # TEST_NAME is passed to pass
/fail. COMMAND is used
if TEST_NAME is
"".
1654 # EXPECTED_OUTPUT_LIST is a list of regexps of expected output
, which are
1655 # processed in order
, and all must be present in the output.
1657 # The
-prompt
switch can be used to override the prompt expected at the end of
1658 # the output sequence.
1660 # It is unnecessary to specify
".*" at the beginning or end of any regexp,
1661 # there is an implicit
".*" between each element of EXPECTED_OUTPUT_LIST.
1662 # There is also an implicit
".*" between the last regexp and the gdb prompt.
1664 # Like gdb_test and gdb_test_multiple
, the output is expected to end with the
1665 # gdb prompt
, which must not be specified in EXPECTED_OUTPUT_LIST.
1668 #
1 if the test failed
,
1669 #
0 if the test passes
,
1670 #
-1 if there was an internal error.
1672 proc gdb_test_sequence
{ args } {
1675 parse_args
{{prompt
""}}
1677 if { $prompt
== "" } {
1678 set prompt
"$gdb_prompt $"
1681 if { [llength $
args] != 3 } {
1682 error
"Unexpected # of arguments, expecting: COMMAND TEST_NAME EXPECTED_OUTPUT_LIST"
1685 lassign $
args command test_name expected_output_list
1687 if { $test_name
== "" } {
1688 set test_name $command
1691 lappend expected_output_list
""; # implicit ".*" before gdb prompt
1693 if { $command
!= "" } {
1694 send_gdb
"$command\n"
1697 return [gdb_expect_list $test_name $prompt $expected_output_list
]
1701 # Match output of COMMAND using RE. Read output line
-by
-line.
1702 #
Report pass
/fail with MESSAGE.
1703 #
For a command foo with output
:
1708 # the portion matched using RE is
:
1713 # Optionally
, additional
-re
-not
<regexp
> arguments can be specified
, to
1714 # ensure that a regexp is not match by the COMMAND output.
1715 # Such an additional
argument generates an additional PASS
/FAIL of the form
:
1716 # PASS
: test
-case.exp
: $message
: pattern not matched
: <regexp
>
1718 proc gdb_test_lines
{ command message re
args } {
1721 for {set i
0} {$i
< [llength $
args]} {incr i
} {
1722 set arg [lindex $
args $i
]
1723 if { $
arg == "-re-not" } {
1725 if { [llength $
args] == $i
} {
1726 error
"Missing argument for -re-not"
1729 set arg [lindex $
args $i
]
1732 error
"Unhandled argument: $arg"
1736 if { $message
== ""} {
1737 set message $command
1741 gdb_test_multiple $command $message
{
1742 -re
"\r\n(\[^\r\n\]*)(?=\r\n)" {
1743 set line $expect_out
(1,string
)
1744 if { $lines eq
"" } {
1745 append lines
"$line"
1747 append lines
"\r\n$line"
1756 gdb_assert
{ [regexp $re $lines
] } $message
1758 foreach re $re_not
{
1759 gdb_assert
{ ![regexp $re $lines
] } "$message: pattern not matched: $re"
1763 # Test that a command gives an error.
For pass or fail
, return
1764 # a
1 to indicate that more tests can proceed. However a timeout
1765 # is a serious error
, generates a special fail message
, and causes
1766 # a
0 to be returned to indicate that more tests are likely to fail
1769 proc test_print_reject
{ args } {
1773 if {[llength $
args] == 2} {
1774 set expectthis
[lindex $
args 1]
1776 set expectthis
"should never match this bogus string"
1778 set sendthis
[lindex $
args 0]
1780 send_user
"Sending \"$sendthis\" to gdb\n"
1781 send_user
"Looking to match \"$expectthis\"\n"
1783 send_gdb
"$sendthis\n"
1784 #FIXME
: Should add timeout as parameter.
1786 -re
"A .* in expression.*\\.*$gdb_prompt $" {
1787 pass
"reject $sendthis"
1790 -re
"Invalid syntax in expression.*$gdb_prompt $" {
1791 pass
"reject $sendthis"
1794 -re
"Junk after end of expression.*$gdb_prompt $" {
1795 pass
"reject $sendthis"
1798 -re
"Invalid number.*$gdb_prompt $" {
1799 pass
"reject $sendthis"
1802 -re
"Invalid character constant.*$gdb_prompt $" {
1803 pass
"reject $sendthis"
1806 -re
"No symbol table is loaded.*$gdb_prompt $" {
1807 pass
"reject $sendthis"
1810 -re
"No symbol .* in current context.*$gdb_prompt $" {
1811 pass
"reject $sendthis"
1814 -re
"Unmatched single quote.*$gdb_prompt $" {
1815 pass
"reject $sendthis"
1818 -re
"A character constant must contain at least one character.*$gdb_prompt $" {
1819 pass
"reject $sendthis"
1822 -re
"$expectthis.*$gdb_prompt $" {
1823 pass
"reject $sendthis"
1826 -re
".*$gdb_prompt $" {
1827 fail
"reject $sendthis"
1831 fail
"reject $sendthis (eof or timeout)"
1838 # Same as gdb_test
, but the second parameter is not a regexp
,
1839 # but a string that must match exactly.
1841 proc gdb_test_exact
{ args } {
1842 upvar timeout timeout
1844 set command
[lindex $
args 0]
1846 # This applies a special meaning to a null string pattern. Without
1847 # this
, "$pattern\r\n$gdb_prompt $" will match anything, including error
1848 # messages from commands that should have no output except a new
1849 # prompt. With this
, only results of a null string will match a null
1852 set pattern
[lindex $
args 1]
1853 if [string match $pattern
""] {
1854 set pattern
[string_to_regexp
[lindex $
args 0]]
1856 set pattern
[string_to_regexp
[lindex $
args 1]]
1859 # It is most natural to write the pattern
argument with only
1860 # embedded
\n's, especially if you are trying to avoid Tcl quoting
1861 # problems. But gdb_expect really wants to see \r\n in patterns. So
1862 # transform the pattern here. First transform \r\n back to \n, in
1863 # case some users of gdb_test_exact already do the right thing.
1864 regsub -all "\r\n" $pattern "\n" pattern
1865 regsub -all "\n" $pattern "\r\n" pattern
1866 if {[llength $args] == 3} {
1867 set message [lindex $args 2]
1868 return [gdb_test $command $pattern $message]
1871 return [gdb_test $command $pattern]
1874 # Wrapper around gdb_test_multiple that looks for a list of expected
1875 # output elements, but which can appear in any order.
1876 # CMD is the gdb command.
1877 # NAME is the name of the test.
1878 # ELM_FIND_REGEXP specifies how to partition the output into elements to
1880 # ELM_EXTRACT_REGEXP specifies the part of ELM_FIND_REGEXP to compare.
1881 # RESULT_MATCH_LIST is a list of exact matches for each expected element.
1882 # All elements of RESULT_MATCH_LIST must appear for the test to pass.
1884 # A typical use of ELM_FIND_REGEXP/ELM_EXTRACT_REGEXP is to extract one line
1885 # of text per element and then strip trailing \r\n's.
1887 # gdb_test_list_exact
"foo" "bar" \
1888 #
"\[^\r\n\]+\[\r\n\]+" \
1891 #
{expected result
1} \
1892 #
{expected result
2} \
1895 proc gdb_test_list_exact
{ cmd
name elm_find_regexp elm_extract_regexp result_match_list
} {
1898 set matches
[lsort $result_match_list
]
1900 gdb_test_multiple $cmd $
name {
1901 "$cmd\[\r\n\]" { exp_continue }
1902 -re $elm_find_regexp
{
1903 set str $expect_out
(0,string
)
1904 verbose
-log "seen: $str" 3
1905 regexp
-- $elm_extract_regexp $str elm_seen
1906 verbose
-log "extracted: $elm_seen" 3
1907 lappend seen $elm_seen
1910 -re
"$gdb_prompt $" {
1912 foreach got
[lsort $seen
] have $matches
{
1913 if {![string equal $got $have
]} {
1918 if {[string length $failed
] != 0} {
1919 fail
"$name ($failed not found)"
1927 # gdb_test_stdio COMMAND INFERIOR_PATTERN GDB_PATTERN MESSAGE
1928 # Send a command to gdb
; expect inferior and gdb output.
1930 # See gdb_test_multiple
for a description of the COMMAND and MESSAGE
1933 # INFERIOR_PATTERN is the pattern to match against inferior output.
1935 # GDB_PATTERN is the pattern to match against gdb output
, and must NOT
1936 #
include the
\r\n sequence immediately before the gdb prompt
, nor the
1937 # prompt. The default is empty.
1939 # Both inferior and gdb patterns must match
for a PASS.
1941 #
If MESSAGE is omitted
, then COMMAND will be used as the message.
1944 #
1 if the test failed
,
1945 #
0 if the test passes
,
1946 #
-1 if there was an internal error.
1949 proc gdb_test_stdio
{command inferior_pattern
{gdb_pattern
""} {message ""}} {
1950 global inferior_spawn_id gdb_spawn_id
1953 if {$message
== ""} {
1954 set message $command
1957 set inferior_matched
0
1960 # Use an indirect spawn id list
, and remove the inferior spawn id
1961 # from the expected output as soon as it matches
, in case
1962 # $inferior_pattern happens to be a prefix of the resulting full
1963 # gdb pattern below
(e.g.
, "\r\n").
1964 global gdb_test_stdio_spawn_id_list
1965 set gdb_test_stdio_spawn_id_list
"$inferior_spawn_id"
1967 # Note that
if $inferior_spawn_id and $gdb_spawn_id are different
,
1968 #
then we may see gdb
's output arriving before the inferior's
1970 set res
[gdb_test_multiple $command $message
{
1971 -i gdb_test_stdio_spawn_id_list
-re
"$inferior_pattern" {
1972 set inferior_matched
1
1973 if {!$gdb_matched
} {
1974 set gdb_test_stdio_spawn_id_list
""
1978 -i $gdb_spawn_id
-re
"$gdb_pattern\r\n$gdb_prompt $" {
1980 if {!$inferior_matched
} {
1988 verbose
-log "inferior_matched=$inferior_matched, gdb_matched=$gdb_matched"
1993 # Wrapper around gdb_test_multiple to be used when testing expression
1994 # evaluation
while 'set debug expression 1' is in effect.
1995 # Looks
for some patterns that indicates the expression was rejected.
1997 # CMD is the command to
execute, which should
include an expression
1998 # that GDB will need to
parse.
2000 # OUTPUT is the expected output pattern.
2002 # TESTNAME is the
name to be used
for the test
, defaults to CMD
if not
2004 proc gdb_test_debug_expr
{ cmd output
{testname
"" }} {
2007 if { $
{testname
} == "" } {
2011 gdb_test_multiple $cmd $testname
{
2012 -re
".*Invalid expression.*\r\n$gdb_prompt $" {
2015 -re
".*\[\r\n\]$output\r\n$gdb_prompt $" {
2021 # get_print_expr_at_depths EXP OUTPUTS
2023 # Used
for testing
'set print max-depth'. Prints the expression EXP
2024 # with
'set print max-depth' set to various depths. OUTPUTS is a list
2025 # of `n` different patterns to match at each of the depths from
0 to
2028 # This proc does one final check with the
max-depth
set to
'unlimited'
2029 # which is tested against the last pattern in the OUTPUTS list. The
2030 # OUTPUTS list is therefore required to match
every depth from
0 to a
2031 # depth where the whole of EXP is printed with no ellipsis.
2033 # This proc leaves the
'set print max-depth' set to
'unlimited'.
2034 proc gdb_print_expr_at_depths
{exp outputs
} {
2035 for { set depth
0 } { $depth
<= [llength $outputs
] } { incr depth
} {
2036 if { $depth
== [llength $outputs
] } {
2037 set expected_result
[lindex $outputs
[expr
[llength $outputs
] - 1]]
2038 set depth_string
"unlimited"
2040 set expected_result
[lindex $outputs $depth
]
2041 set depth_string $depth
2044 with_test_prefix
"exp='$exp': depth=${depth_string}" {
2045 gdb_test_no_output
"set print max-depth ${depth_string}"
2046 gdb_test
"p $exp" "$expected_result"
2053 # Issue a PASS and
return true
if evaluating CONDITION in the caller
's
2054 # frame returns true, and issue a FAIL and return false otherwise.
2055 # MESSAGE is the pass/fail message to be printed. If MESSAGE is
2056 # omitted or is empty, then the pass/fail messages use the condition
2057 # string as the message.
2059 proc gdb_assert { condition {message ""} } {
2060 if { $message == ""} {
2061 set message $condition
2064 set code [catch {uplevel 1 [list expr $condition]} res]
2066 # If code is 1 (TCL_ERROR), it means evaluation failed and res contains
2067 # an error message. Print the error message, and set res to 0 since we
2068 # want to return a boolean.
2069 warning "While evaluating expression in gdb_assert: $res"
2072 } elseif { !$res } {
2080 proc gdb_reinitialize_dir { subdir } {
2083 if [is_remote host] {
2088 -re "Reinitialize source path to empty.*y or n. " {
2089 send_gdb "y\n" answer
2091 -re "Source directories searched.*$gdb_prompt $" {
2092 send_gdb "dir $subdir\n"
2094 -re "Source directories searched.*$gdb_prompt $" {
2095 verbose "Dir set to $subdir"
2097 -re "$gdb_prompt $" {
2098 perror "Dir \"$subdir\" failed."
2102 -re "$gdb_prompt $" {
2103 perror "Dir \"$subdir\" failed."
2107 -re "$gdb_prompt $" {
2108 perror "Dir \"$subdir\" failed."
2114 # gdb_exit -- exit the GDB, killing the target program if necessary
2116 proc default_gdb_exit {} {
2118 global INTERNAL_GDBFLAGS GDBFLAGS
2119 global gdb_spawn_id inferior_spawn_id
2120 global inotify_log_file
2122 if ![info exists gdb_spawn_id] {
2126 verbose "Quitting $GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
2128 if {[info exists inotify_log_file] && [file exists $inotify_log_file]} {
2129 set fd [open $inotify_log_file]
2130 set data [read -nonewline $fd]
2133 if {[string compare $data ""] != 0} {
2134 warning "parallel-unsafe file creations noticed"
2137 set fd [open $inotify_log_file w]
2142 if { [is_remote host] && [board_info host exists fileid] } {
2146 send_gdb "y\n" answer
2149 -re "DOSEXIT code" { }
2154 if ![is_remote host] {
2158 unset ::gdb_tty_name
2159 unset inferior_spawn_id
2162 # Load a file into the debugger.
2163 # The return value is 0 for success, -1 for failure.
2165 # ARG is the file name.
2166 # KILL_FLAG, if given, indicates whether a "kill" command should be used.
2168 # This procedure also set the global variable GDB_FILE_CMD_DEBUG_INFO
2169 # to one of these values:
2171 # debug file was loaded successfully and has debug information
2172 # nodebug file was loaded successfully and has no debug information
2173 # lzma file was loaded, .gnu_debugdata found, but no LZMA support
2175 # fail file was not loaded
2177 # This procedure also set the global variable GDB_FILE_CMD_MSG to the
2178 # output of the file command in case of success.
2180 # I tried returning this information as part of the return value,
2181 # but ran into a mess because of the many re-implementations of
2182 # gdb_load in config/*.exp.
2184 # TODO: gdb.base/sepdebug.exp and gdb.stabs/weird.exp might be able to use
2185 # this if they can get more information set.
2187 proc gdb_file_cmd { arg {kill_flag 1} } {
2190 global last_loaded_file
2192 # GCC for Windows target may create foo.exe given "-o foo".
2193 if { ![file exists $arg] && [file exists "$arg.exe"] } {
2197 # Save this for the benefit of gdbserver-support.exp.
2198 set last_loaded_file $arg
2200 # Set whether debug info was found.
2201 # Default to "fail".
2202 global gdb_file_cmd_debug_info gdb_file_cmd_msg
2203 set gdb_file_cmd_debug_info "fail"
2205 if [is_remote host] {
2206 set arg [remote_download host $arg]
2208 perror "download failed"
2213 # The file command used to kill the remote target. For the benefit
2214 # of the testsuite, preserve this behavior. Mark as optional so it doesn't
2215 #
get written to the stdin
log.
2217 send_gdb
"kill\n" optional
2219 -re
"Kill the program being debugged. .y or n. $" {
2220 send_gdb
"y\n" answer
2221 verbose
"\t\tKilling previous program being debugged"
2224 -re
"$gdb_prompt $" {
2230 send_gdb
"file $arg\n"
2231 set new_symbol_table
0
2232 set basename
[file tail $
arg]
2234 -re
"(Reading symbols from.*LZMA support was disabled.*$gdb_prompt $)" {
2235 verbose
"\t\tLoaded $arg into $GDB; .gnu_debugdata found but no LZMA available"
2236 set gdb_file_cmd_msg $expect_out
(1,string
)
2237 set gdb_file_cmd_debug_info
"lzma"
2240 -re
"(Reading symbols from.*No debugging symbols found.*$gdb_prompt $)" {
2241 verbose
"\t\tLoaded $arg into $GDB with no debugging symbols"
2242 set gdb_file_cmd_msg $expect_out
(1,string
)
2243 set gdb_file_cmd_debug_info
"nodebug"
2246 -re
"(Reading symbols from.*$gdb_prompt $)" {
2247 verbose
"\t\tLoaded $arg into $GDB"
2248 set gdb_file_cmd_msg $expect_out
(1,string
)
2249 set gdb_file_cmd_debug_info
"debug"
2252 -re
"Load new symbol table from \".*\".*y or n. $" {
2253 if { $new_symbol_table
> 0 } {
2254 perror
[join
[list
"Couldn't load $basename,"
2255 "interactive prompt loop detected."]]
2258 send_gdb
"y\n" answer
2259 incr new_symbol_table
2260 set suffix
"-- with new symbol table"
2261 set arg "$arg $suffix"
2262 set basename
"$basename $suffix"
2265 -re
"No such file or directory.*$gdb_prompt $" {
2266 perror
"($basename) No such file or directory"
2269 -re
"A problem internal to GDB has been detected" {
2270 perror
"Couldn't load $basename into GDB (GDB internal error)."
2271 gdb_internal_error_resync
2274 -re
"$gdb_prompt $" {
2275 perror
"Couldn't load $basename into GDB."
2279 perror
"Couldn't load $basename into GDB (timeout)."
2283 # This is an attempt to detect a core dump
, but seems not to
2284 # work. Perhaps we need to match .
* followed by eof
, in which
2285 # gdb_expect does not seem to have a way to
do that.
2286 perror
"Couldn't load $basename into GDB (eof)."
2292 # The expect
"spawn" function puts the tty name into the spawn_out
2293 # array
; but dejagnu doesn
't export this globally. So, we have to
2294 # wrap spawn with our own function and poke in the built-in spawn
2295 # so that we can capture this value.
2297 # If available, the TTY name is saved to the LAST_SPAWN_TTY_NAME global.
2298 # Otherwise, LAST_SPAWN_TTY_NAME is unset.
2300 proc spawn_capture_tty_name { args } {
2301 set result [uplevel builtin_spawn $args]
2302 upvar spawn_out spawn_out
2303 if { [info exists spawn_out(slave,name)] } {
2304 set ::last_spawn_tty_name $spawn_out(slave,name)
2306 # If a process is spawned as part of a pipe line (e.g. passing
2307 # -leaveopen to the spawn proc) then the spawned process is no
2308 # assigned a tty and spawn_out(slave,name) will not be set.
2309 # In that case we want to ensure that last_spawn_tty_name is
2312 # If the previous process spawned was also not assigned a tty
2313 # (e.g. multiple processed chained in a pipeline) then
2314 # last_spawn_tty_name will already be unset, so, if we don't
2315 # use
-nocomplain here we would otherwise
get an error.
2316 unset
-nocomplain
::last_spawn_tty_name
2321 rename spawn builtin_spawn
2322 rename spawn_capture_tty_name spawn
2324 # Default gdb_spawn procedure.
2326 proc default_gdb_spawn
{ } {
2329 global INTERNAL_GDBFLAGS GDBFLAGS
2332 #
Set the default value
, it may be overriden later by specific testfile.
2334 # Use `set_board_info use_gdb_stub
' for the board file to flag the inferior
2335 # is already started after connecting and run/attach are not supported.
2336 # This is used for the "remote" protocol. After GDB starts you should
2337 # check global $use_gdb_stub instead of the board as the testfile may force
2338 # a specific different target protocol itself.
2339 set use_gdb_stub [target_info exists use_gdb_stub]
2341 verbose "Spawning $GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
2342 gdb_write_cmd_file "$GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
2344 if [info exists gdb_spawn_id] {
2348 if ![is_remote host] {
2349 if {[which $GDB] == 0} {
2350 perror "$GDB does not exist."
2355 # Put GDBFLAGS last so that tests can put "--args ..." in it.
2356 set res [remote_spawn host "$GDB $INTERNAL_GDBFLAGS [host_info gdb_opts] $GDBFLAGS"]
2357 if { $res < 0 || $res == "" } {
2358 perror "Spawning $GDB failed."
2362 set gdb_spawn_id $res
2363 set ::gdb_tty_name $::last_spawn_tty_name
2367 # Default gdb_start procedure.
2369 proc default_gdb_start { } {
2372 global inferior_spawn_id
2374 if [info exists gdb_spawn_id] {
2378 # Keep track of the number of times GDB has been launched.
2379 global gdb_instances
2389 # Default to assuming inferior I/O is done on GDB's terminal.
2390 if {![info exists inferior_spawn_id
]} {
2391 set inferior_spawn_id $gdb_spawn_id
2394 # When running over NFS
, particularly
if running many simultaneous
2395 # tests
on different hosts all using the same server
, things can
2396 #
get really slow. Give gdb at least
3 minutes to start up.
2398 -re
"\[\r\n\]$gdb_prompt $" {
2399 verbose
"GDB initialized."
2401 -re
"\[\r\n\]\033\\\[.2004h$gdb_prompt $" {
2402 # This special case detects what happens when GDB is
2403 # started with bracketed paste
mode enabled. This
mode is
2404 # usually forced
off (see setting of INPUTRC in
2405 # default_gdb_init
), but
for at least one test we turn
2406 # bracketed paste
mode back on, and
then start GDB. In
2407 # that case
, this case is hit.
2408 verbose
"GDB initialized."
2410 -re
"^$gdb_prompt $" {
2412 verbose
"GDB initialized."
2414 -re
"^\033\\\[.2004h$gdb_prompt $" {
2415 # Output with
-q
, and bracketed paste
mode enabled
, see above.
2416 verbose
"GDB initialized."
2418 -re
"$gdb_prompt $" {
2419 perror
"GDB never initialized."
2424 perror
"(timeout) GDB never initialized after 10 seconds."
2430 perror
"(eof) GDB never initialized."
2436 # force the height to
"unlimited", so no pagers get used
2438 send_gdb
"set height 0\n"
2440 -re
"$gdb_prompt $" {
2441 verbose
"Setting height to 0." 2
2444 warning
"Couldn't set the height to 0"
2447 # force the width to
"unlimited", so no wraparound occurs
2448 send_gdb
"set width 0\n"
2450 -re
"$gdb_prompt $" {
2451 verbose
"Setting width to 0." 2
2454 warning
"Couldn't set the width to 0."
2462 # Utility procedure to give user control of the gdb prompt in a script. It is
2463 # meant to be used
for debugging test cases
, and should not be left in the
2466 proc gdb_interact
{ } {
2468 set spawn_id $gdb_spawn_id
2470 send_user
"+------------------------------------------+\n"
2471 send_user
"| Script interrupted, you can now interact |\n"
2472 send_user
"| with by gdb. Type >>> to continue. |\n"
2473 send_user
"+------------------------------------------+\n"
2480 # Examine the output of compilation to determine whether compilation
2481 # failed or not.
If it failed determine whether it is due to missing
2482 # compiler or due to compiler error.
Report pass
, fail or unsupported
2485 proc gdb_compile_test
{src output
} {
2486 set msg
"compilation [file tail $src]"
2488 if { $output
== "" } {
2493 if { [regexp
{^
[a
-zA
-Z_0
-9]+: Can
't find [^ ]+\.$} $output]
2494 || [regexp {.*: command not found[\r|\n]*$} $output]
2495 || [regexp {.*: [^\r\n]*compiler not installed[^\r\n]*[\r|\n]*$} $output] } {
2496 unsupported "$msg (missing compiler)"
2500 set gcc_re ".*: error: unrecognized command line option "
2501 set clang_re ".*: error: unsupported option "
2502 if { [regexp "(?:$gcc_re|$clang_re)(\[^ \t;\r\n\]*)" $output dummy option]
2503 && $option != "" } {
2504 unsupported "$msg (unsupported option $option)"
2508 # Unclassified compilation failure, be more verbose.
2509 verbose -log "compilation failed: $output" 2
2513 # Return a 1 for configurations for which we want to try to test C++.
2515 proc allow_cplus_tests {} {
2516 if { [istarget "h8300-*-*"] } {
2520 # The C++ IO streams are too large for HC11/HC12 and are thus not
2521 # available. The gdb C++ tests use them and don't
compile.
2522 if { [istarget
"m6811-*-*"] } {
2525 if { [istarget
"m6812-*-*"] } {
2531 #
Return a
0 for configurations which are missing either C
++ or the STL.
2533 proc allow_stl_tests
{} {
2534 return [allow_cplus_tests
]
2537 #
Return a
1 if I want to try to test FORTRAN.
2539 proc allow_fortran_tests
{} {
2543 #
Return a
1 if I want to try to test ada.
2545 proc allow_ada_tests
{} {
2546 if { [is_remote host
] } {
2547 # Currently gdb_ada_compile doesn
't support remote host.
2553 # Return a 1 if I want to try to test GO.
2555 proc allow_go_tests {} {
2559 # Return a 1 if I even want to try to test D.
2561 proc allow_d_tests {} {
2565 # Return a 1 if we can compile source files in LANG.
2567 gdb_caching_proc can_compile { lang } {
2569 if { $lang == "d" } {
2570 set src { void main() {} }
2571 return [gdb_can_simple_compile can_compile_$lang $src executable {d}]
2574 if { $lang == "rust" } {
2575 if { ![isnative] } {
2579 if { [is_remote host] } {
2580 # Proc find_rustc returns "" for remote host.
2584 # The rust compiler does not support "-m32", skip.
2585 global board board_info
2586 set board [target_info name]
2587 if {[board_info $board exists multilib_flags]} {
2588 foreach flag [board_info $board multilib_flags] {
2589 if { $flag == "-m32" } {
2595 set src { fn main() {} }
2596 # Drop nowarnings in default_compile_flags, it translates to -w which
2597 # rustc doesn't support.
2598 return [gdb_can_simple_compile can_compile_$lang $src executable \
2599 {rust
} {debug quiet
}]
2602 error
"can_compile doesn't support lang: $lang"
2605 #
Return 1 to try Rust tests
, 0 to skip them.
2606 proc allow_rust_tests
{} {
2610 #
Return a
1 for configurations that support Python scripting.
2612 gdb_caching_proc allow_python_tests
{} {
2613 set output
[remote_exec host $
::GDB
"$::INTERNAL_GDBFLAGS --configuration"]
2614 return [expr
{[string first
"--with-python" $output] != -1}]
2617 #
Return a
1 for configurations that use
system readline rather than the
2620 gdb_caching_proc with_system_readline
{} {
2621 set output
[remote_exec host $
::GDB
"$::INTERNAL_GDBFLAGS --configuration"]
2622 return [expr
{[string first
"--with-system-readline" $output] != -1}]
2625 gdb_caching_proc allow_dap_tests
{} {
2626 if { ![allow_python_tests
] } {
2630 # The dap code uses module typing
, available starting python
3.5.
2631 if { ![python_version_at_least
3 5] } {
2635 # ton.tcl uses
"string is entier", supported starting tcl 8.6.
2636 if { ![tcl_version_at_least
8 6] } {
2640 # With
set auto
-connect-native
-target
off, we run into
:
2642 # Traceback
(most recent
call last
):
2643 # File
"startup.py", line <n>, in exec_and_log
2644 # output
= gdb.
execute(cmd
, from_tty
=True
, to_string
=True
)
2645 # gdb.error
: Don
't know how to run. Try "help target".
2646 set gdb_flags [join $::GDBFLAGS $::INTERNAL_GDBFLAGS]
2647 return [expr {[string first "set auto-connect-native-target off" $gdb_flags] == -1}]
2650 # Return a 1 if we should run shared library tests.
2652 proc allow_shlib_tests {} {
2653 # Run the shared library tests on native systems.
2658 # An abbreviated list of remote targets where we should be able to
2659 # run shared library tests.
2660 if {([istarget *-*-linux*]
2661 || [istarget *-*-*bsd*]
2662 || [istarget *-*-solaris2*]
2663 || [istarget *-*-mingw*]
2664 || [istarget *-*-cygwin*]
2665 || [istarget *-*-pe*])} {
2672 # Return 1 if we should run dlmopen tests, 0 if we should not.
2674 gdb_caching_proc allow_dlmopen_tests {} {
2675 global srcdir subdir gdb_prompt inferior_exited_re
2677 # We need shared library support.
2678 if { ![allow_shlib_tests] } {
2682 set me "allow_dlmopen_tests"
2696 struct r_debug *r_debug;
2700 /* The version is kept at 1 until we create a new namespace. */
2701 handle = dlmopen (LM_ID_NEWLM, DSO_NAME, RTLD_LAZY | RTLD_LOCAL);
2703 printf ("dlmopen failed: %s.\n", dlerror ());
2708 /* Taken from /usr/include/link.h. */
2709 for (dyn = _DYNAMIC; dyn->d_tag != DT_NULL; ++dyn)
2710 if (dyn->d_tag == DT_DEBUG)
2711 r_debug = (struct r_debug *) dyn->d_un.d_ptr;
2714 printf ("r_debug not found.\n");
2717 if (r_debug->r_version < 2) {
2718 printf ("dlmopen debug not supported.\n");
2721 printf ("dlmopen debug supported.\n");
2726 set libsrc [standard_temp_file "libfoo.c"]
2727 set libout [standard_temp_file "libfoo.so"]
2728 gdb_produce_source $libsrc $lib
2730 if { [gdb_compile_shlib $libsrc $libout {debug}] != "" } {
2731 verbose -log "failed to build library"
2734 if { ![gdb_simple_compile $me $src executable \
2735 [list shlib_load debug \
2736 additional_flags=-DDSO_NAME=\"$libout\"]] } {
2737 verbose -log "failed to build executable"
2743 gdb_reinitialize_dir $srcdir/$subdir
2746 if { [gdb_run_cmd] != 0 } {
2747 verbose -log "failed to start skip test"
2751 -re "$inferior_exited_re normally.*${gdb_prompt} $" {
2752 set allow_dlmopen_tests 1
2754 -re "$inferior_exited_re with code.*${gdb_prompt} $" {
2755 set allow_dlmopen_tests 0
2758 warning "\n$me: default case taken"
2759 set allow_dlmopen_tests 0
2764 verbose "$me: returning $allow_dlmopen_tests" 2
2765 return $allow_dlmopen_tests
2768 # Return 1 if we should allow TUI-related tests.
2770 gdb_caching_proc allow_tui_tests {} {
2771 set output [remote_exec host $::GDB "$::INTERNAL_GDBFLAGS --configuration"]
2772 return [expr {[string first "--enable-tui" $output] != -1}]
2775 # Test files shall make sure all the test result lines in gdb.sum are
2776 # unique in a test run, so that comparing the gdb.sum files of two
2777 # test runs gives correct results. Test files that exercise
2778 # variations of the same tests more than once, shall prefix the
2779 # different test invocations with different identifying strings in
2780 # order to make them unique.
2782 # About test prefixes:
2784 # $pf_prefix is the string that dejagnu prints after the result (FAIL,
2785 # PASS, etc.), and before the test message/name in gdb.sum. E.g., the
2786 # underlined substring in
2788 # PASS: gdb.base/mytest.exp: some test
2789 # ^^^^^^^^^^^^^^^^^^^^
2793 # The easiest way to adjust the test prefix is to append a test
2794 # variation prefix to the $pf_prefix, using the with_test_prefix
2797 # proc do_tests {} {
2798 # gdb_test ... ... "test foo"
2799 # gdb_test ... ... "test bar"
2801 # with_test_prefix "subvariation a" {
2802 # gdb_test ... ... "test x"
2805 # with_test_prefix "subvariation b" {
2806 # gdb_test ... ... "test x"
2810 # with_test_prefix "variation1" {
2811 # ...do setup for variation 1...
2815 # with_test_prefix "variation2" {
2816 # ...do setup for variation 2...
2822 # PASS: gdb.base/mytest.exp: variation1: test foo
2823 # PASS: gdb.base/mytest.exp: variation1: test bar
2824 # PASS: gdb.base/mytest.exp: variation1: subvariation a: test x
2825 # PASS: gdb.base/mytest.exp: variation1: subvariation b: test x
2826 # PASS: gdb.base/mytest.exp: variation2: test foo
2827 # PASS: gdb.base/mytest.exp: variation2: test bar
2828 # PASS: gdb.base/mytest.exp: variation2: subvariation a: test x
2829 # PASS: gdb.base/mytest.exp: variation2: subvariation b: test x
2831 # If for some reason more flexibility is necessary, one can also
2832 # manipulate the pf_prefix global directly, treating it as a string.
2836 # set saved_pf_prefix
2837 # append pf_prefix "${foo}: bar"
2838 # ... actual tests ...
2839 # set pf_prefix $saved_pf_prefix
2842 # Run BODY in the context of the caller, with the current test prefix
2843 # (pf_prefix) appended with one space, then PREFIX, and then a colon.
2844 # Returns the result of BODY.
2846 proc with_test_prefix { prefix body } {
2849 set saved $pf_prefix
2850 append pf_prefix " " $prefix ":"
2851 set code [catch {uplevel 1 $body} result]
2852 set pf_prefix $saved
2855 global errorInfo errorCode
2856 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
2858 return -code $code $result
2862 # Wrapper for foreach that calls with_test_prefix on each iteration,
2863 # including the iterator's
name and current value in the prefix.
2865 proc foreach_with_prefix
{var list body
} {
2867 foreach myvar $list
{
2868 with_test_prefix
"$var=$myvar" {
2869 set code
[catch
{uplevel
1 $body
} result
]
2873 global errorInfo errorCode
2874 return -code $code
-errorinfo $errorInfo
-errorcode $errorCode $result
2875 } elseif
{$code
== 3} {
2877 } elseif
{$code
== 2} {
2878 return -code $code $result
2883 # Like TCL
's native proc, but defines a procedure that wraps its body
2884 # within 'with_test_prefix
"$proc_name" { ... }'.
2885 proc proc_with_prefix
{name arguments body
} {
2886 #
Define the advertised proc.
2887 proc $
name $arguments
[list with_test_prefix $
name $body
]
2890 #
Return an id corresponding to the test prefix stored in $pf_prefix
, which
2891 # is more suitable
for use in a file
name.
2892 # F.i.
, for a pf_prefix
:
2893 # gdb.dwarf2
/dw2
-lines.exp
: \
2894 # cv
=5: cdw
=64: lv
=5: ldw
=64: string_form
=line_strp
:
2896 # cv
-5-cdw
-32-lv
-5-ldw
-64-string_form
-line_strp
2902 #
Strip ".exp: " prefix.
2903 set id
[regsub
{.
*\.exp
: } $id
{}]
2905 #
Strip colon suffix.
2906 set id
[regsub
{:$
} $id
{}]
2909 set id
[regsub
-all
{ } $id
{}]
2911 # Replace colons
, equal signs.
2912 set id
[regsub
-all \
[:=\
] $id
-]
2917 # Run BODY in the
context of the caller. After BODY is run
, the variables
2918 # listed in VARS will be reset to the
values they had before BODY was run.
2920 # This is useful
for providing a scope in which it is safe to temporarily
2921 # modify global variables
, e.g.
2923 # global INTERNAL_GDBFLAGS
2926 #
set foo GDBHISTSIZE
2928 # save_vars
{ INTERNAL_GDBFLAGS env
($foo
) env
(HOME
) } {
2929 # append INTERNAL_GDBFLAGS
" -nx"
2930 # unset
-nocomplain env
(GDBHISTSIZE
)
2935 # Here
, although INTERNAL_GDBFLAGS
, env
(GDBHISTSIZE
) and env
(HOME
) may be
2936 # modified inside BODY
, this proc guarantees that the modifications will be
2937 # undone after BODY finishes executing.
2939 proc save_vars
{ vars body
} {
2940 array
set saved_scalars
{ }
2941 array
set saved_arrays
{ }
2945 # First evaluate VAR in the
context of the caller in case the
variable
2946 #
name may be a not
-yet
-interpolated string like env
($foo
)
2947 set var
[uplevel
1 list $var
]
2949 if [uplevel
1 [list
info exists $var
]] {
2950 if [uplevel
1 [list array
exists $var
]] {
2951 set saved_arrays
($var
) [uplevel
1 [list array
get $var
]]
2953 set saved_scalars
($var
) [uplevel
1 [list
set $var
]]
2956 lappend unset_vars $var
2960 set code
[catch
{uplevel
1 $body
} result
]
2962 foreach
{var value
} [array
get saved_scalars
] {
2963 uplevel
1 [list
set $var $value
]
2966 foreach
{var value
} [array
get saved_arrays
] {
2967 uplevel
1 [list unset $var
]
2968 uplevel
1 [list array
set $var $value
]
2971 foreach var $unset_vars
{
2972 uplevel
1 [list unset
-nocomplain $var
]
2976 global errorInfo errorCode
2977 return -code $code
-errorinfo $errorInfo
-errorcode $errorCode $result
2979 return -code $code $result
2983 # As save_vars
, but
for variables stored in the board_info
for the
2988 # save_target_board_info
{ multilib_flags
} {
2990 #
set board
[target_info
name]
2991 # unset_board_info multilib_flags
2992 # set_board_info multilib_flags
"$multilib_flags"
2996 proc save_target_board_info
{ vars body
} {
2997 global board board_info
2998 set board
[target_info
name]
3000 array
set saved_target_board_info
{ }
3001 set unset_target_board_info
{ }
3004 if { [info exists board_info
($board
,$var
)] } {
3005 set saved_target_board_info
($var
) [board_info $board $var
]
3007 lappend unset_target_board_info $var
3011 set code
[catch
{uplevel
1 $body
} result
]
3013 foreach
{var value
} [array
get saved_target_board_info
] {
3014 unset_board_info $var
3015 set_board_info $var $value
3018 foreach var $unset_target_board_info
{
3019 unset_board_info $var
3023 global errorInfo errorCode
3024 return -code $code
-errorinfo $errorInfo
-errorcode $errorCode $result
3026 return -code $code $result
3030 # Run tests in BODY with the current working directory
(CWD
) set to
3031 #
DIR. When BODY is finished
, restore the original CWD.
Return the
3034 # This procedure doesn
't check if DIR is a valid directory, so you
3035 # have to make sure of that.
3037 proc with_cwd { dir body } {
3039 verbose -log "Switching to directory $dir (saved CWD: $saved_dir)."
3042 set code [catch {uplevel 1 $body} result]
3044 verbose -log "Switching back to $saved_dir."
3048 global errorInfo errorCode
3049 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
3051 return -code $code $result
3055 # Use GDB's
'cd' command to
switch to
DIR.
Return true
if the
switch
3056 # was successful
, otherwise
, call perror and
return false.
3058 proc gdb_cd
{ dir } {
3060 gdb_test_multiple
"cd $dir" "" {
3061 -re
"^cd \[^\r\n\]+\r\n" {
3065 -re
"^Working directory (\[^\r\n\]+)\\.\r\n" {
3066 set new_dir $expect_out
(1,string
)
3070 -re
"^$::gdb_prompt $" {
3071 if { $new_dir
== "" || $new_dir != $dir } {
3072 perror
"failed to switch to $dir"
3081 # Use GDB
's 'pwd
' command to figure out the current working directory.
3082 # Return the directory as a string. If we can't figure out the
3083 # current working directory
, then call perror
, and
return the empty
3088 gdb_test_multiple
"pwd" "" {
3093 -re
"^Working directory (\[^\r\n\]+)\\.\r\n" {
3094 set dir $expect_out
(1,string
)
3098 -re
"^$::gdb_prompt $" {
3103 perror
"failed to read GDB's current working directory"
3109 # Similar to the with_cwd proc
, this proc runs BODY with the current
3110 # working directory changed to CWD.
3112 # Unlike with_cwd
, the directory change here is done within GDB
3113 # itself
, so GDB must be running before this proc is called.
3115 proc with_gdb_cwd
{ dir body
} {
3116 set saved_dir
[gdb_pwd
]
3117 if { $saved_dir
== "" } {
3121 verbose
-log "Switching to directory $dir (saved CWD: $saved_dir)."
3126 set code
[catch
{uplevel
1 $body
} result
]
3128 verbose
-log "Switching back to $saved_dir."
3129 if ![gdb_cd $saved_dir
] {
3133 # Check that GDB is still alive.
If GDB crashed in the above code
3134 #
then any corefile will have been left in
DIR, not the root
3135 # testsuite directory. As a result the corefile will not be
3136 # brought to the users attention. Instead
, if GDB crashed
, then
3137 # this check should cause a FAIL
, which should be enough to alert
3139 set saw_result false
3140 gdb_test_multiple
"p 123" "" {
3145 -re
"^\\\$$::decimal = 123\r\n" {
3150 -re
"^$::gdb_prompt $" {
3151 if { !$saw_result
} {
3152 fail
"check gdb is alive in with_gdb_cwd"
3158 global errorInfo errorCode
3159 return -code $code
-errorinfo $errorInfo
-errorcode $errorCode $result
3161 return -code $code $result
3165 # Run tests in BODY with GDB prompt and
variable $gdb_prompt
set to
3166 # PROMPT. When BODY is finished
, restore GDB prompt and
variable
3168 # Returns the result of BODY.
3172 #
1) If you want to use
, for example
, "(foo)" as the prompt you must pass it
3173 # as
"(foo)", and not the regexp form "\(foo\)" (expressed as "\\(foo\\)" in
3174 # TCL
). PROMPT is internally converted to a suitable regexp
for matching.
3175 # We
do the conversion from
"(foo)" to "\(foo\)" here for a few reasons:
3176 # a
) It
's more intuitive for callers to pass the plain text form.
3177 # b) We need two forms of the prompt:
3178 # - a regexp to use in output matching,
3179 # - a value to pass to the "set prompt" command.
3180 # c) It's easier to
convert the plain
text form to its regexp form.
3182 #
2) Don
't add a trailing space, we do that here.
3184 proc with_gdb_prompt { prompt body } {
3187 # Convert "(foo)" to "\(foo\)".
3188 # We don't use string_to_regexp because
while it works
today it
's not
3189 # clear it will work tomorrow: the value we need must work as both a
3190 # regexp *and* as the argument to the "set prompt" command, at least until
3191 # we start recording both forms separately instead of just $gdb_prompt.
3192 # The testsuite is pretty-much hardwired to interpret $gdb_prompt as the
3194 regsub -all {[]*+.|()^$\[\\]} $prompt {\\&} prompt
3196 set saved $gdb_prompt
3198 verbose -log "Setting gdb prompt to \"$prompt \"."
3199 set gdb_prompt $prompt
3200 gdb_test_no_output "set prompt $prompt " ""
3202 set code [catch {uplevel 1 $body} result]
3204 verbose -log "Restoring gdb prompt to \"$saved \"."
3205 set gdb_prompt $saved
3206 gdb_test_no_output "set prompt $saved " ""
3209 global errorInfo errorCode
3210 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
3212 return -code $code $result
3216 # Run tests in BODY with target-charset setting to TARGET_CHARSET. When
3217 # BODY is finished, restore target-charset.
3219 proc with_target_charset { target_charset body } {
3223 gdb_test_multiple "show target-charset" "" {
3224 -re "The target character set is \".*; currently (.*)\"\..*$gdb_prompt " {
3225 set saved $expect_out(1,string)
3227 -re "The target character set is \"(.*)\".*$gdb_prompt " {
3228 set saved $expect_out(1,string)
3230 -re ".*$gdb_prompt " {
3231 fail "get target-charset"
3235 gdb_test_no_output -nopass "set target-charset $target_charset"
3237 set code [catch {uplevel 1 $body} result]
3239 gdb_test_no_output -nopass "set target-charset $saved"
3242 global errorInfo errorCode
3243 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
3245 return -code $code $result
3249 # Run tests in BODY with max-value-size set to SIZE. When BODY is
3250 # finished restore max-value-size.
3252 proc with_max_value_size { size body } {
3256 gdb_test_multiple "show max-value-size" "" {
3257 -re -wrap "Maximum value size is ($::decimal) bytes\\." {
3258 set saved $expect_out(1,string)
3260 -re ".*$gdb_prompt " {
3261 fail "get max-value-size"
3265 gdb_test_no_output -nopass "set max-value-size $size"
3267 set code [catch {uplevel 1 $body} result]
3269 gdb_test_no_output -nopass "set max-value-size $saved"
3272 global errorInfo errorCode
3273 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
3275 return -code $code $result
3279 # Switch the default spawn id to SPAWN_ID, so that gdb_test,
3280 # mi_gdb_test etc. default to using it.
3282 proc switch_gdb_spawn_id {spawn_id} {
3284 global board board_info
3286 set gdb_spawn_id $spawn_id
3287 set board [host_info name]
3288 set board_info($board,fileid) $spawn_id
3291 # Clear the default spawn id.
3293 proc clear_gdb_spawn_id {} {
3295 global board board_info
3297 unset -nocomplain gdb_spawn_id
3298 set board [host_info name]
3299 unset -nocomplain board_info($board,fileid)
3302 # Run BODY with SPAWN_ID as current spawn id.
3304 proc with_spawn_id { spawn_id body } {
3307 if [info exists gdb_spawn_id] {
3308 set saved_spawn_id $gdb_spawn_id
3311 switch_gdb_spawn_id $spawn_id
3313 set code [catch {uplevel 1 $body} result]
3315 if [info exists saved_spawn_id] {
3316 switch_gdb_spawn_id $saved_spawn_id
3322 global errorInfo errorCode
3323 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
3325 return -code $code $result
3329 # DejaGNU records spawn ids in a global array and tries to wait for
3330 # them when exiting. Sometimes this caused problems if gdb's test
3331 # suite has already waited
for the particular spawn id. And
, dejagnu
3332 # only seems to allow a single spawn id per
"machine". This proc can
3333 # be used to clean up after a spawn id has been closed.
3334 proc clean_up_spawn_id
{host id
} {
3336 set name [board_info $host
name]
3337 if {[info exists board_info
($
name,fileid
)]
3338 && $board_info
($
name,fileid
) == $id
} {
3339 unset
-nocomplain board_info
($
name,fileid
)
3343 # Select the
largest timeout from all the timeouts
:
3344 #
- the local
"timeout" variable of the scope two levels above,
3345 #
- the global
"timeout" variable,
3346 #
- the board
variable "gdb,timeout".
3348 proc get_largest_timeout
{} {
3349 upvar #
0 timeout gtimeout
3350 upvar
2 timeout timeout
3353 if [info exists timeout
] {
3356 if { [info exists gtimeout
] && $gtimeout
> $tmt
} {
3359 if { [target_info
exists gdb
,timeout
]
3360 && [target_info gdb
,timeout
] > $tmt
} {
3361 set tmt
[target_info gdb
,timeout
]
3371 # Run tests in BODY with timeout increased by factor of FACTOR. When
3372 # BODY is finished
, restore timeout.
3374 proc with_timeout_factor
{ factor body
} {
3377 set savedtimeout $timeout
3379 set timeout
[expr
[get_largest_timeout
] * $factor
]
3380 set code
[catch
{uplevel
1 $body
} result
]
3382 set timeout $savedtimeout
3384 global errorInfo errorCode
3385 return -code $code
-errorinfo $errorInfo
-errorcode $errorCode $result
3387 return -code $code $result
3391 # Run BODY with timeout factor FACTOR
if check
-read1 is used.
3393 proc with_read1_timeout_factor
{ factor body
} {
3394 if { [info exists ::env
(READ1
)] == 1 && $
::env
(READ1
) == 1 } {
3395 # Use timeout factor
3397 # Reset timeout factor
3400 return [uplevel
[list with_timeout_factor $factor $body
]]
3403 #
Return 1 if _Complex types are supported
, otherwise
, return 0.
3405 gdb_caching_proc support_complex_tests
{} {
3407 if { ![allow_float_test
] } {
3408 #
If floating point is not supported
, _Complex is not
3413 #
Compile a test
program containing _Complex types.
3415 return [gdb_can_simple_compile complex
{
3419 _Complex long double cld
;
3425 #
Return 1 if compiling go is supported.
3426 gdb_caching_proc support_go_compile
{} {
3428 return [gdb_can_simple_compile go
-hello
{
3432 fmt.Println
("hello world")
3437 #
Return 1 if GDB can
get a type
for siginfo from the target
, otherwise
3440 proc supports_get_siginfo_type
{} {
3441 if { [istarget
"*-*-linux*"] } {
3448 #
Return 1 if memory tagging is supported at runtime
, otherwise
return 0.
3450 gdb_caching_proc supports_memtag
{} {
3453 gdb_test_multiple
"memory-tag check" "" {
3454 -re
"Memory tagging not supported or disabled by the current architecture\..*$gdb_prompt $" {
3457 -re
"Argument required \\(address or pointer\\).*$gdb_prompt $" {
3464 #
Return 1 if the target supports hardware single stepping.
3466 proc can_hardware_single_step
{} {
3468 if { [istarget
"arm*-*-*"] || [istarget "mips*-*-*"]
3469 ||
[istarget
"tic6x-*-*"] || [istarget "sparc*-*-linux*"]
3470 ||
[istarget
"nios2-*-*"] || [istarget "riscv*-*-linux*"] } {
3477 #
Return 1 if target hardware or OS supports single stepping to
signal
3478 # handler
, otherwise
, return 0.
3480 proc can_single_step_to_signal_handler
{} {
3481 # Targets don
't have hardware single step. On these targets, when
3482 # a signal is delivered during software single step, gdb is unable
3483 # to determine the next instruction addresses, because start of signal
3484 # handler is one of them.
3485 return [can_hardware_single_step]
3488 # Return 1 if target supports process record, otherwise return 0.
3490 proc supports_process_record {} {
3492 if [target_info exists gdb,use_precord] {
3493 return [target_info gdb,use_precord]
3496 if { [istarget "arm*-*-linux*"] || [istarget "x86_64-*-linux*"]
3497 || [istarget "i\[34567\]86-*-linux*"]
3498 || [istarget "aarch64*-*-linux*"]
3499 || [istarget "powerpc*-*-linux*"]
3500 || [istarget "s390*-*-linux*"] } {
3507 # Return 1 if target supports reverse debugging, otherwise return 0.
3509 proc supports_reverse {} {
3511 if [target_info exists gdb,can_reverse] {
3512 return [target_info gdb,can_reverse]
3515 if { [istarget "arm*-*-linux*"] || [istarget "x86_64-*-linux*"]
3516 || [istarget "i\[34567\]86-*-linux*"]
3517 || [istarget "aarch64*-*-linux*"]
3518 || [istarget "powerpc*-*-linux*"]
3519 || [istarget "s390*-*-linux*"] } {
3526 # Return 1 if readline library is used.
3528 proc readline_is_used { } {
3531 gdb_test_multiple "show editing" "" {
3532 -re ".*Editing of command lines as they are typed is on\..*$gdb_prompt $" {
3535 -re ".*$gdb_prompt $" {
3541 # Return 1 if target is ELF.
3542 gdb_caching_proc is_elf_target {} {
3543 set me "is_elf_target"
3545 set src { int foo () {return 0;} }
3546 if {![gdb_simple_compile elf_target $src]} {
3550 set fp_obj [open $obj "r"]
3551 fconfigure $fp_obj -translation binary
3552 set data [read $fp_obj]
3557 set ELFMAG "\u007FELF"
3559 if {[string compare -length 4 $data $ELFMAG] != 0} {
3560 verbose "$me: returning 0" 2
3564 verbose "$me: returning 1" 2
3568 # Return 1 if the memory at address zero is readable.
3570 gdb_caching_proc is_address_zero_readable {} {
3574 gdb_test_multiple "x 0" "" {
3575 -re "Cannot access memory at address 0x0.*$gdb_prompt $" {
3578 -re ".*$gdb_prompt $" {
3586 # Produce source file NAME and write SOURCES into it.
3588 proc gdb_produce_source { name sources } {
3590 set f [open $name "w"]
3596 # Return 1 if target is ILP32.
3597 # This cannot be decided simply from looking at the target string,
3598 # as it might depend on externally passed compiler options like -m64.
3599 gdb_caching_proc is_ilp32_target {} {
3600 return [gdb_can_simple_compile is_ilp32_target {
3601 int dummy[sizeof (int) == 4
3602 && sizeof (void *) == 4
3603 && sizeof (long) == 4 ? 1 : -1];
3607 # Return 1 if target is LP64.
3608 # This cannot be decided simply from looking at the target string,
3609 # as it might depend on externally passed compiler options like -m64.
3610 gdb_caching_proc is_lp64_target {} {
3611 return [gdb_can_simple_compile is_lp64_target {
3612 int dummy[sizeof (int) == 4
3613 && sizeof (void *) == 8
3614 && sizeof (long) == 8 ? 1 : -1];
3618 # Return 1 if target has 64 bit addresses.
3619 # This cannot be decided simply from looking at the target string,
3620 # as it might depend on externally passed compiler options like -m64.
3621 gdb_caching_proc is_64_target {} {
3622 return [gdb_can_simple_compile_nodebug is_64_target {
3623 int function(void) { return 3; }
3624 int dummy[sizeof (&function) == 8 ? 1 : -1];
3628 # Return 1 if target has x86_64 registers - either amd64 or x32.
3629 # x32 target identifies as x86_64-*-linux*, therefore it cannot be determined
3630 # just from the target string.
3631 gdb_caching_proc is_amd64_regs_target {} {
3632 if {![istarget "x86_64-*-*"] && ![istarget "i?86-*"]} {
3636 return [gdb_can_simple_compile is_amd64_regs_target {
3646 # Return 1 if this target is an x86 or x86-64 with -m32.
3647 proc is_x86_like_target {} {
3648 if {![istarget "x86_64-*-*"] && ![istarget i?86-*]} {
3651 return [expr [is_ilp32_target] && ![is_amd64_regs_target]]
3654 # Return 1 if this target is an x86_64 with -m64.
3655 proc is_x86_64_m64_target {} {
3656 return [expr [istarget x86_64-*-* ] && [is_lp64_target]]
3659 # Return 1 if this target is an arm or aarch32 on aarch64.
3661 gdb_caching_proc is_aarch32_target {} {
3662 if { [istarget "arm*-*-*"] } {
3666 if { ![istarget "aarch64*-*-*"] } {
3673 lappend list "\tmov $reg, $reg"
3676 return [gdb_can_simple_compile aarch32 [join $list \n]]
3679 # Return 1 if this target is an aarch64, either lp64 or ilp32.
3681 proc is_aarch64_target {} {
3682 if { ![istarget "aarch64*-*-*"] } {
3686 return [expr ![is_aarch32_target]]
3689 # Return 1 if displaced stepping is supported on target, otherwise, return 0.
3690 proc support_displaced_stepping {} {
3692 if { [istarget "x86_64-*-linux*"] || [istarget "i\[34567\]86-*-linux*"]
3693 || [istarget "arm*-*-linux*"] || [istarget "powerpc-*-linux*"]
3694 || [istarget "powerpc64-*-linux*"] || [istarget "s390*-*-*"]
3695 || [istarget "aarch64*-*-linux*"] || [istarget "loongarch*-*-linux*"] } {
3702 # Return 1 if GDB can find the libc debug info, or 0 and a reason string if it
3703 # can't. This procedure is meant to be called by the require procedure.
3704 gdb_caching_proc libc_has_debug_info
{} {
3705 global srcdir subdir gdb_prompt inferior_exited_re
3707 set me
"libc_has_debug_info"
3709 #
Compile a test
program.
3714 printf
("Hello, world!\n");
3718 if {![gdb_simple_compile $me $src executable
{debug
}]} {
3719 return [list
0 "failed to compile test program"]
3722 # No error message
, compilation succeeded so now run it via gdb.
3726 gdb_reinitialize_dir $srcdir
/$subdir
3729 set test
"info sharedlibrary libc.so"
3730 gdb_test_multiple $test $test
{
3731 -re
".*\(\\*\)\[^\r\n\]*/libc\.so.*$gdb_prompt $" {
3732 # Matched the
"(*)" in the "Syms Read" columns which means:
3733 #
"(*): Shared library is missing debugging information."
3734 verbose
-log "$me: libc doesn't have debug info"
3735 set libc_has_debug_info
0
3736 set message
"libc doesn't have debug info"
3738 -re
".*Yes\[ \t\]+\[^\r\n\]*/libc\.so.*$gdb_prompt $" {
3739 verbose
-log "$me: libc has debug info"
3740 set libc_has_debug_info
1
3743 set libc_has_debug_info
0
3744 set message
"libc not found in the inferior"
3748 remote_file build
delete $
obj
3750 verbose
"$me: returning $libc_has_debug_info" 2
3751 if { $libc_has_debug_info
} {
3752 return $libc_has_debug_info
3754 return [list $libc_has_debug_info $message
]
3758 # Run a test
on the target to see
if it supports vmx hardware.
Return 1 if so
,
3759 #
0 if it does not. Based
on 'check_vmx_hw_available' from the GCC testsuite.
3761 gdb_caching_proc allow_altivec_tests
{} {
3762 global srcdir subdir gdb_prompt inferior_exited_re
3764 set me
"allow_altivec_tests"
3766 # Some simulators are known to not support VMX instructions.
3767 if { [istarget powerpc
-*-eabi
] ||
[istarget powerpc
*-*-eabispe
] } {
3768 verbose
"$me: target known to not support VMX, returning 0" 2
3772 if {![istarget powerpc
*]} {
3773 verbose
"$me: PPC target required, returning 0" 2
3777 # Make sure we have a compiler that understands altivec.
3778 if [test_compiler_info gcc
*] {
3779 set compile_flags
"additional_flags=-maltivec"
3780 } elseif
[test_compiler_info xlc
*] {
3781 set compile_flags
"additional_flags=-qaltivec"
3783 verbose
"Could not compile with altivec support, returning 0" 2
3787 #
Compile a test
program containing VMX instructions.
3791 asm volatile
("vor v0,v0,v0");
3793 asm volatile
("vor 0,0,0");
3798 if {![gdb_simple_compile $me $src executable $compile_flags
]} {
3802 # Compilation succeeded so now run it via gdb.
3806 gdb_reinitialize_dir $srcdir
/$subdir
3810 -re
".*Illegal instruction.*${gdb_prompt} $" {
3811 verbose
-log "\n$me altivec hardware not detected"
3812 set allow_vmx_tests
0
3814 -re
".*$inferior_exited_re normally.*${gdb_prompt} $" {
3815 verbose
-log "\n$me: altivec hardware detected"
3816 set allow_vmx_tests
1
3819 warning
"\n$me: default case taken"
3820 set allow_vmx_tests
0
3824 remote_file build
delete $
obj
3826 verbose
"$me: returning $allow_vmx_tests" 2
3827 return $allow_vmx_tests
3830 # Run a test
on the power target to see
if it supports ISA
3.1 instructions
3831 gdb_caching_proc allow_power_isa_3_1_tests
{} {
3832 global srcdir subdir gdb_prompt inferior_exited_re
3834 set me
"allow_power_isa_3_1_tests"
3836 #
Compile a test
program containing ISA
3.1 instructions.
3839 asm volatile
("pnop"); // marker
3840 asm volatile
("nop");
3845 if {![gdb_simple_compile $me $src executable
]} {
3849 # No error message
, compilation succeeded so now run it via gdb.
3853 gdb_reinitialize_dir $srcdir
/$subdir
3857 -re
".*Illegal instruction.*${gdb_prompt} $" {
3858 verbose
-log "\n$me Power ISA 3.1 hardware not detected"
3859 set allow_power_isa_3_1_tests
0
3861 -re
".*$inferior_exited_re normally.*${gdb_prompt} $" {
3862 verbose
-log "\n$me: Power ISA 3.1 hardware detected"
3863 set allow_power_isa_3_1_tests
1
3866 warning
"\n$me: default case taken"
3867 set allow_power_isa_3_1_tests
0
3871 remote_file build
delete $
obj
3873 verbose
"$me: returning $allow_power_isa_3_1_tests" 2
3874 return $allow_power_isa_3_1_tests
3877 # Run a test
on the target to see
if it supports vmx hardware.
Return 1 if so
,
3878 #
0 if it does not. Based
on 'check_vmx_hw_available' from the GCC testsuite.
3880 gdb_caching_proc allow_vsx_tests
{} {
3881 global srcdir subdir gdb_prompt inferior_exited_re
3883 set me
"allow_vsx_tests"
3885 # Some simulators are known to not support Altivec instructions
, so
3886 # they won
't support VSX instructions as well.
3887 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
3888 verbose "$me: target known to not support VSX, returning 0" 2
3892 # Make sure we have a compiler that understands altivec.
3893 if [test_compiler_info gcc*] {
3894 set compile_flags "additional_flags=-mvsx"
3895 } elseif [test_compiler_info xlc*] {
3896 set compile_flags "additional_flags=-qasm=gcc"
3898 verbose "Could not compile with vsx support, returning 0" 2
3902 # Compile a test program containing VSX instructions.
3905 double a[2] = { 1.0, 2.0 };
3907 asm volatile ("lxvd2x v0,v0,%[addr]" : : [addr] "r" (a));
3909 asm volatile ("lxvd2x 0,0,%[addr]" : : [addr] "r" (a));
3914 if {![gdb_simple_compile $me $src executable $compile_flags]} {
3918 # No error message, compilation succeeded so now run it via gdb.
3922 gdb_reinitialize_dir $srcdir/$subdir
3926 -re ".*Illegal instruction.*${gdb_prompt} $" {
3927 verbose -log "\n$me VSX hardware not detected"
3928 set allow_vsx_tests 0
3930 -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
3931 verbose -log "\n$me: VSX hardware detected"
3932 set allow_vsx_tests 1
3935 warning "\n$me: default case taken"
3936 set allow_vsx_tests 0
3940 remote_file build delete $obj
3942 verbose "$me: returning $allow_vsx_tests" 2
3943 return $allow_vsx_tests
3946 # Run a test on the target to see if it supports TSX hardware. Return 1 if so,
3947 # 0 if it does not. Based on 'check_vmx_hw_available
' from the GCC testsuite.
3949 gdb_caching_proc allow_tsx_tests {} {
3950 global srcdir subdir gdb_prompt inferior_exited_re
3952 set me "allow_tsx_tests"
3954 # Compile a test program.
3957 asm volatile ("xbegin .L0");
3958 asm volatile ("xend");
3959 asm volatile (".L0: nop");
3963 if {![gdb_simple_compile $me $src executable]} {
3967 # No error message, compilation succeeded so now run it via gdb.
3971 gdb_reinitialize_dir $srcdir/$subdir
3975 -re ".*Illegal instruction.*${gdb_prompt} $" {
3976 verbose -log "$me: TSX hardware not detected."
3977 set allow_tsx_tests 0
3979 -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
3980 verbose -log "$me: TSX hardware detected."
3981 set allow_tsx_tests 1
3984 warning "\n$me: default case taken."
3985 set allow_tsx_tests 0
3989 remote_file build delete $obj
3991 verbose "$me: returning $allow_tsx_tests" 2
3992 return $allow_tsx_tests
3995 # Run a test on the target to see if it supports avx512bf16. Return 1 if so,
3996 # 0 if it does not. Based on 'check_vmx_hw_available
' from the GCC testsuite.
3998 gdb_caching_proc allow_avx512bf16_tests {} {
3999 global srcdir subdir gdb_prompt inferior_exited_re
4001 set me "allow_avx512bf16_tests"
4002 if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
4003 verbose "$me: target does not support avx512bf16, returning 0" 2
4007 # Compile a test program.
4010 asm volatile ("vcvtne2ps2bf16 %xmm0, %xmm1, %xmm0");
4014 if {![gdb_simple_compile $me $src executable]} {
4018 # No error message, compilation succeeded so now run it via gdb.
4022 gdb_reinitialize_dir $srcdir/$subdir
4026 -re ".*Illegal instruction.*${gdb_prompt} $" {
4027 verbose -log "$me: avx512bf16 hardware not detected."
4028 set allow_avx512bf16_tests 0
4030 -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
4031 verbose -log "$me: avx512bf16 hardware detected."
4032 set allow_avx512bf16_tests 1
4035 warning "\n$me: default case taken."
4036 set allow_avx512bf16_tests 0
4040 remote_file build delete $obj
4042 verbose "$me: returning $allow_avx512bf16_tests" 2
4043 return $allow_avx512bf16_tests
4046 # Run a test on the target to see if it supports avx512fp16. Return 1 if so,
4047 # 0 if it does not. Based on 'check_vmx_hw_available
' from the GCC testsuite.
4049 gdb_caching_proc allow_avx512fp16_tests {} {
4050 global srcdir subdir gdb_prompt inferior_exited_re
4052 set me "allow_avx512fp16_tests"
4053 if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
4054 verbose "$me: target does not support avx512fp16, returning 0" 2
4058 # Compile a test program.
4061 asm volatile ("vcvtps2phx %xmm1, %xmm0");
4065 if {![gdb_simple_compile $me $src executable]} {
4069 # No error message, compilation succeeded so now run it via gdb.
4073 gdb_reinitialize_dir $srcdir/$subdir
4077 -re ".*Illegal instruction.*${gdb_prompt} $" {
4078 verbose -log "$me: avx512fp16 hardware not detected."
4079 set allow_avx512fp16_tests 0
4081 -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
4082 verbose -log "$me: avx512fp16 hardware detected."
4083 set allow_avx512fp16_tests 1
4086 warning "\n$me: default case taken."
4087 set allow_avx512fp16_tests 0
4091 remote_file build delete $obj
4093 verbose "$me: returning $allow_avx512fp16_tests" 2
4094 return $allow_avx512fp16_tests
4097 # Run a test on the target to see if it supports btrace hardware. Return 1 if so,
4098 # 0 if it does not. Based on 'check_vmx_hw_available
' from the GCC testsuite.
4100 gdb_caching_proc allow_btrace_tests {} {
4101 global srcdir subdir gdb_prompt inferior_exited_re
4103 set me "allow_btrace_tests"
4104 if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
4105 verbose "$me: target does not support btrace, returning 0" 2
4109 # Compile a test program.
4110 set src { int main() { return 0; } }
4111 if {![gdb_simple_compile $me $src executable]} {
4115 # No error message, compilation succeeded so now run it via gdb.
4119 gdb_reinitialize_dir $srcdir/$subdir
4124 # In case of an unexpected output, we return 2 as a fail value.
4125 set allow_btrace_tests 2
4126 gdb_test_multiple "record btrace" "check btrace support" {
4127 -re "You can't
do that when your target is.
*\r\n$gdb_prompt $
" {
4128 set allow_btrace_tests
0
4130 -re
"Target does not support branch tracing.*\r\n$gdb_prompt $" {
4131 set allow_btrace_tests
0
4133 -re
"Could not enable branch tracing.*\r\n$gdb_prompt $" {
4134 set allow_btrace_tests
0
4136 -re
"^record btrace\r\n$gdb_prompt $" {
4137 set allow_btrace_tests
1
4141 remote_file build
delete $
obj
4143 verbose
"$me: returning $allow_btrace_tests" 2
4144 return $allow_btrace_tests
4147 # Run a test
on the target to see
if it supports btrace pt hardware.
4148 #
Return 1 if so
, 0 if it does not. Based
on 'check_vmx_hw_available'
4149 # from the GCC testsuite.
4151 gdb_caching_proc allow_btrace_pt_tests
{} {
4152 global srcdir subdir gdb_prompt inferior_exited_re
4154 set me
"allow_btrace_pt_tests"
4155 if { ![istarget
"i?86-*-*"] && ![istarget "x86_64-*-*"] } {
4156 verbose
"$me: target does not support btrace, returning 1" 2
4160 #
Compile a test
program.
4161 set src
{ int main
() { return 0; } }
4162 if {![gdb_simple_compile $me $src executable
]} {
4166 # No error message
, compilation succeeded so now run it via gdb.
4170 gdb_reinitialize_dir $srcdir
/$subdir
4175 # In case of an unexpected output
, we
return 2 as a fail value.
4176 set allow_btrace_pt_tests
2
4177 gdb_test_multiple
"record btrace pt" "check btrace pt support" {
4178 -re
"You can't do that when your target is.*\r\n$gdb_prompt $" {
4179 set allow_btrace_pt_tests
0
4181 -re
"Target does not support branch tracing.*\r\n$gdb_prompt $" {
4182 set allow_btrace_pt_tests
0
4184 -re
"Could not enable branch tracing.*\r\n$gdb_prompt $" {
4185 set allow_btrace_pt_tests
0
4187 -re
"support was disabled at compile time.*\r\n$gdb_prompt $" {
4188 set allow_btrace_pt_tests
0
4190 -re
"^record btrace pt\r\n$gdb_prompt $" {
4191 set allow_btrace_pt_tests
1
4195 remote_file build
delete $
obj
4197 verbose
"$me: returning $allow_btrace_pt_tests" 2
4198 return $allow_btrace_pt_tests
4201 # Run a test
on the target to see
if it supports Aarch64 SVE hardware.
4202 #
Return 1 if so
, 0 if it does not. Note this causes a restart of GDB.
4204 gdb_caching_proc allow_aarch64_sve_tests
{} {
4205 global srcdir subdir gdb_prompt inferior_exited_re
4207 set me
"allow_aarch64_sve_tests"
4209 if { ![is_aarch64_target
]} {
4213 set compile_flags
"{additional_flags=-march=armv8-a+sve}"
4215 #
Compile a test
program containing SVE instructions.
4218 asm volatile
("ptrue p0.b");
4222 if {![gdb_simple_compile $me $src executable $compile_flags
]} {
4226 # Compilation succeeded so now run it via gdb.
4230 -re
".*Illegal instruction.*${gdb_prompt} $" {
4231 verbose
-log "\n$me sve hardware not detected"
4232 set allow_sve_tests
0
4234 -re
".*$inferior_exited_re normally.*${gdb_prompt} $" {
4235 verbose
-log "\n$me: sve hardware detected"
4236 set allow_sve_tests
1
4239 warning
"\n$me: default case taken"
4240 set allow_sve_tests
0
4244 remote_file build
delete $
obj
4246 #
While testing
for SVE support
, also discover all the supported vector
4248 aarch64_initialize_sve_information
4250 verbose
"$me: returning $allow_sve_tests" 2
4251 return $allow_sve_tests
4254 # Assuming SVE is supported by the target
, run some checks to determine all
4255 # the supported vector length
values and
return an array containing all of those
4256 #
values. Since this is a gdb_caching_proc
, this proc will only be executed
4259 # To check
if a particular SVE vector length is supported
, the following code
4260 # can be used.
For instance
, for vl
== 16:
4262 #
if {[aarch64_supports_sve_vl
16]} {
4263 # verbose
-log "SVE vector length 16 is supported."
4266 # This procedure should NEVER be called by hand
, as it reinitializes the GDB
4267 # session and will derail a test. This should be called automatically as part
4268 # of the SVE support test routine allow_aarch64_sve_tests. Users should
4269 # restrict themselves to calling the helper proc aarch64_supports_sve_vl.
4271 gdb_caching_proc aarch64_initialize_sve_information
{ } {
4274 set src
"${srcdir}/lib/aarch64-test-sve.c"
4275 set test_exec
[standard_temp_file
"aarch64-test-sve.x"]
4276 set compile_flags
"{additional_flags=-march=armv8-a+sve}"
4277 array
set supported_vl
{}
4279 #
Compile the SVE vector length test.
4280 set result
[gdb_compile $src $test_exec executable
[list debug $
{compile_flags
} nowarnings
]]
4282 if {$result
!= ""} {
4283 verbose
-log "Failed to compile SVE information gathering test."
4284 return [array
get supported_vl
]
4287 clean_restart $test_exec
4289 if {![runto_main
]} {
4290 return [array
get supported_vl
]
4293 set stop_breakpoint
"stop here"
4294 gdb_breakpoint
[gdb_get_line_number $stop_breakpoint $src
]
4295 gdb_continue_to_breakpoint $stop_breakpoint
4297 # Go through the data and extract the supported SVE vector lengths.
4298 set vl_count
[get_valueof
"" "supported_vl_count" "0" \
4299 "fetch value of supported_vl_count"]
4300 verbose
-log "Found $vl_count supported SVE vector length values"
4302 for {set vl_index
0} {$vl_index
< $vl_count
} {incr vl_index
} {
4303 set test_vl
[get_valueof
"" "supported_vl\[$vl_index\]" "0" \
4304 "fetch value of supported_vl\[$vl_index\]"]
4306 # Mark this vector length as supported.
4307 if {$test_vl
!= 0} {
4308 verbose
-log "Found supported SVE vector length $test_vl"
4309 set supported_vl
($test_vl
) 1
4314 verbose
-log "Cleaning up"
4315 remote_file build
delete $test_exec
4317 verbose
-log "Done gathering information about AArch64 SVE vector lengths."
4319 #
Return the array containing all of the supported SVE vl
values.
4320 return [array
get supported_vl
]
4324 #
Return 1 if the target supports SVE vl LENGTH
4325 #
Return 0 otherwise.
4328 proc aarch64_supports_sve_vl
{ length
} {
4330 #
Fetch the cached array of supported SVE vl
values.
4331 array
set supported_vl
[aarch64_initialize_sve_information
]
4333 #
Do we have the global
values cached?
4334 if {![info exists supported_vl
($length
)]} {
4335 verbose
-log "Target does not support SVE vl $length"
4339 # The target supports SVE vl LENGTH.
4343 # Run a test
on the target to see
if it supports Aarch64 SME extensions.
4344 #
Return 0 if so
, 1 if it does not. Note this causes a restart of GDB.
4346 gdb_caching_proc allow_aarch64_sme_tests
{} {
4347 global srcdir subdir gdb_prompt inferior_exited_re
4349 set me
"allow_aarch64_sme_tests"
4351 if { ![is_aarch64_target
]} {
4355 set compile_flags
"{additional_flags=-march=armv8-a+sme}"
4357 #
Compile a test
program containing SME instructions.
4360 asm volatile
("smstart za");
4364 if {![gdb_simple_compile $me $src executable $compile_flags
]} {
4365 # Try again
, but with a raw hex instruction so we don
't rely on
4366 # assembler support for SME.
4368 set compile_flags "{additional_flags=-march=armv8-a}"
4370 # Compile a test program containing SME instructions.
4373 asm volatile (".word 0xD503457F");
4378 if {![gdb_simple_compile $me $src executable $compile_flags]} {
4383 # Compilation succeeded so now run it via gdb.
4387 -re ".*Illegal instruction.*${gdb_prompt} $" {
4388 verbose -log "\n$me sme support not detected"
4389 set allow_sme_tests 0
4391 -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
4392 verbose -log "\n$me: sme support detected"
4393 set allow_sme_tests 1
4396 warning "\n$me: default case taken"
4397 set allow_sme_tests 0
4401 remote_file build delete $obj
4403 # While testing for SME support, also discover all the supported vector
4405 aarch64_initialize_sme_information
4407 verbose "$me: returning $allow_sme_tests" 2
4408 return $allow_sme_tests
4411 # Assuming SME is supported by the target, run some checks to determine all
4412 # the supported streaming vector length values and return an array containing
4413 # all of those values. Since this is a gdb_caching_proc, this proc will only
4416 # To check if a particular SME streaming vector length is supported, the
4417 # following code can be used. For instance, for svl == 32:
4419 # if {[aarch64_supports_sme_svl 32]} {
4420 # verbose -log "SME streaming vector length 32 is supported."
4423 # This procedure should NEVER be called by hand, as it reinitializes the GDB
4424 # session and will derail a test. This should be called automatically as part
4425 # of the SME support test routine allow_aarch64_sme_tests. Users should
4426 # restrict themselves to calling the helper proc aarch64_supports_sme_svl.
4428 gdb_caching_proc aarch64_initialize_sme_information { } {
4431 set src "${srcdir}/lib/aarch64-test-sme.c"
4432 set test_exec [standard_temp_file "aarch64-test-sme.x"]
4433 set compile_flags "{additional_flags=-march=armv8-a+sme}"
4434 array set supported_svl {}
4436 # Compile the SME vector length test.
4437 set result [gdb_compile $src $test_exec executable [list debug ${compile_flags} nowarnings]]
4439 if {$result != ""} {
4440 verbose -log "Failed to compile SME information gathering test."
4441 return [array get supported_svl]
4444 clean_restart $test_exec
4446 if {![runto_main]} {
4447 return [array get supported_svl]
4450 set stop_breakpoint "stop here"
4451 gdb_breakpoint [gdb_get_line_number $stop_breakpoint $src]
4452 gdb_continue_to_breakpoint $stop_breakpoint
4454 # Go through the data and extract the supported SME vector lengths.
4455 set svl_count [get_valueof "" "supported_svl_count" "0" \
4456 "fetch value of supported_svl_count"]
4457 verbose -log "Found $svl_count supported SME vector length values"
4459 for {set svl_index 0} {$svl_index < $svl_count} {incr svl_index} {
4460 set test_svl [get_valueof "" "supported_svl\[$svl_index\]" "0" \
4461 "fetch value of supported_svl\[$svl_index\]"]
4463 # Mark this streaming vector length as supported.
4464 if {$test_svl != 0} {
4465 verbose -log "Found supported SME vector length $test_svl"
4466 set supported_svl($test_svl) 1
4471 verbose -log "Cleaning up"
4472 remote_file build delete $test_exec
4474 verbose -log "Done gathering information about AArch64 SME vector lengths."
4476 # Return the array containing all of the supported SME svl values.
4477 return [array get supported_svl]
4481 # Return 1 if the target supports SME svl LENGTH
4482 # Return 0 otherwise.
4485 proc aarch64_supports_sme_svl { length } {
4487 # Fetch the cached array of supported SME svl values.
4488 array set supported_svl [aarch64_initialize_sme_information]
4490 # Do we have the global values cached?
4491 if {![info exists supported_svl($length)]} {
4492 verbose -log "Target does not support SME svl $length"
4496 # The target supports SME svl LENGTH.
4500 # A helper that compiles a test case to see if __int128 is supported.
4501 proc gdb_int128_helper {lang} {
4502 return [gdb_can_simple_compile "i128-for-$lang" {
4504 int main() { return 0; }
4508 # Return true if the C compiler understands the __int128 type.
4509 gdb_caching_proc has_int128_c {} {
4510 return [gdb_int128_helper c]
4513 # Return true if the C++ compiler understands the __int128 type.
4514 gdb_caching_proc has_int128_cxx {} {
4515 return [gdb_int128_helper c++]
4518 # Return true if the IFUNC feature is supported.
4519 gdb_caching_proc allow_ifunc_tests {} {
4520 if [gdb_can_simple_compile ifunc {
4522 typedef void F (void);
4523 F* g (void) { return &f_; }
4524 void f () __attribute__ ((ifunc ("g")));
4532 # Return whether we should skip tests for showing inlined functions in
4533 # backtraces. Requires get_compiler_info and get_debug_format.
4535 proc skip_inline_frame_tests {} {
4536 # GDB only recognizes inlining information in DWARF.
4537 if { ! [test_debug_format "DWARF \[0-9\]"] } {
4541 # GCC before 4.1 does not emit DW_AT_call_file / DW_AT_call_line.
4542 if { ([test_compiler_info "gcc-2-*"]
4543 || [test_compiler_info "gcc-3-*"]
4544 || [test_compiler_info "gcc-4-0-*"]) } {
4551 # Return whether we should skip tests for showing variables from
4552 # inlined functions. Requires get_compiler_info and get_debug_format.
4554 proc skip_inline_var_tests {} {
4555 # GDB only recognizes inlining information in DWARF.
4556 if { ! [test_debug_format "DWARF \[0-9\]"] } {
4563 # Return a 1 if we should run tests that require hardware breakpoints
4565 proc allow_hw_breakpoint_tests {} {
4566 # Skip tests if requested by the board (note that no_hardware_watchpoints
4567 # disables both watchpoints and breakpoints)
4568 if { [target_info exists gdb,no_hardware_watchpoints]} {
4572 # These targets support hardware breakpoints natively
4573 if { [istarget "i?86-*-*"]
4574 || [istarget "x86_64-*-*"]
4575 || [istarget "ia64-*-*"]
4576 || [istarget "arm*-*-*"]
4577 || [istarget "aarch64*-*-*"]
4578 || [istarget "s390*-*-*"] } {
4585 # Return a 1 if we should run tests that require hardware watchpoints
4587 proc allow_hw_watchpoint_tests {} {
4588 # Skip tests if requested by the board
4589 if { [target_info exists gdb,no_hardware_watchpoints]} {
4593 # These targets support hardware watchpoints natively
4594 # Note, not all Power 9 processors support hardware watchpoints due to a HW
4595 # bug. Use has_hw_wp_support to check do a runtime check for hardware
4596 # watchpoint support on Powerpc.
4597 if { [istarget "i?86-*-*"]
4598 || [istarget "x86_64-*-*"]
4599 || [istarget "ia64-*-*"]
4600 || [istarget "arm*-*-*"]
4601 || [istarget "aarch64*-*-*"]
4602 || ([istarget "powerpc*-*-linux*"] && [has_hw_wp_support])
4603 || [istarget "s390*-*-*"] } {
4610 # Return a 1 if we should run tests that require *multiple* hardware
4611 # watchpoints to be active at the same time
4613 proc allow_hw_watchpoint_multi_tests {} {
4614 if { ![allow_hw_watchpoint_tests] } {
4618 # These targets support just a single hardware watchpoint
4619 if { [istarget "arm*-*-*"]
4620 || [istarget "powerpc*-*-linux*"] } {
4627 # Return a 1 if we should run tests that require read/access watchpoints
4629 proc allow_hw_watchpoint_access_tests {} {
4630 if { ![allow_hw_watchpoint_tests] } {
4634 # These targets support just write watchpoints
4635 if { [istarget "s390*-*-*"] } {
4642 # Return 1 if we should skip tests that require the runtime unwinder
4643 # hook. This must be invoked while gdb is running, after shared
4644 # libraries have been loaded. This is needed because otherwise a
4645 # shared libgcc won't be visible.
4647 proc skip_unwinder_tests
{} {
4651 gdb_test_multiple
"print _Unwind_DebugHook" "check for unwinder hook" {
4652 -re
"= .*no debug info.*_Unwind_DebugHook.*\r\n$gdb_prompt $" {
4654 -re
"= .*_Unwind_DebugHook.*\r\n$gdb_prompt $" {
4657 -re
"No symbol .* in current context.\r\n$gdb_prompt $" {
4661 gdb_test_multiple
"info probe" "check for stap probe in unwinder" {
4662 -re
".*libgcc.*unwind.*\r\n$gdb_prompt $" {
4665 -re
"\r\n$gdb_prompt $" {
4672 #
Return 1 if we should skip tests that require the libstdc
++ stap
4673 # probes. This must be invoked
while gdb is running
, after shared
4674 # libraries have been loaded. PROMPT_REGEXP is the expected prompt.
4676 proc skip_libstdcxx_probe_tests_prompt
{ prompt_regexp
} {
4678 gdb_test_multiple
"info probe" "check for stap probe in libstdc++" \
4679 -prompt
"$prompt_regexp" {
4680 -re
".*libstdcxx.*catch.*\r\n$prompt_regexp" {
4683 -re
"\r\n$prompt_regexp" {
4686 set skip
[expr
!$supported
]
4690 # As skip_libstdcxx_probe_tests_prompt
, with gdb_prompt.
4692 proc skip_libstdcxx_probe_tests
{} {
4694 return [skip_libstdcxx_probe_tests_prompt
"$gdb_prompt $"]
4697 #
Return 1 if libc supports the longjmp probe. Note that we
're not using
4698 # gdb_caching_proc because the probe may have been disabled.
4700 proc have_longjmp_probe {} {
4702 gdb_test_multiple "info probes stap libc ^longjmp$" "" {
4703 -re -wrap "No probes matched\\." {
4706 -re -wrap "\r\nstap\[ \t\]+libc\[ \t\]+longjmp\[ \t\]+.*" {
4710 if { $have_probe == -1 } {
4711 error "failed to get libc longjmp probe status"
4716 # Returns true if gdb_protocol is empty, indicating use of the native
4719 proc gdb_protocol_is_native { } {
4720 return [expr {[target_info gdb_protocol] == ""}]
4723 # Returns true if gdb_protocol is either "remote" or
4724 # "extended-remote".
4726 proc gdb_protocol_is_remote { } {
4727 return [expr {[target_info gdb_protocol] == "remote"
4728 || [target_info gdb_protocol] == "extended-remote"}]
4731 # Like istarget, but checks a list of targets.
4732 proc is_any_target {args} {
4733 foreach targ $args {
4734 if {[istarget $targ]} {
4741 # Return the effective value of use_gdb_stub.
4743 # If the use_gdb_stub global has been set (it is set when the gdb process is
4744 # spawned), return that. Otherwise, return the value of the use_gdb_stub
4745 # property from the board file.
4747 # This is the preferred way of checking use_gdb_stub, since it allows to check
4748 # the value before the gdb has been spawned and it will return the correct value
4749 # even when it was overriden by the test.
4751 # Note that stub targets are not able to spawn new inferiors. Use this
4752 # check for skipping respective tests.
4754 proc use_gdb_stub {} {
4757 if [info exists use_gdb_stub] {
4758 return $use_gdb_stub
4761 return [target_info exists use_gdb_stub]
4764 # Return 1 if the current remote target is an instance of our GDBserver, 0
4765 # otherwise. Return -1 if there was an error and we can't tell.
4767 gdb_caching_proc target_is_gdbserver
{} {
4771 set test
"probing for GDBserver"
4773 gdb_test_multiple
"monitor help" $test {
4774 -re
"The following monitor commands are supported.*Quit GDBserver.*$gdb_prompt $" {
4777 -re
"$gdb_prompt $" {
4782 if { $is_gdbserver
== -1 } {
4783 verbose
-log "Unable to tell whether we are using GDBserver or not."
4786 return $is_gdbserver
4789 # N.B. compiler_info is intended to be local to this file.
4790 #
Call test_compiler_info with no arguments to
fetch its value.
4791 # Yes
, this is counterintuitive when there
's get_compiler_info,
4792 # but that's the current API.
4793 if [info exists compiler_info
] {
4797 # Figure out what compiler I am using.
4798 # The result is cached so only the first invocation runs the compiler.
4800 #
ARG can be empty or
"C++". If empty, "C" is assumed.
4802 # There are several ways to
do this
, with various problems.
4804 #
[ gdb_compile
-E $ifile
-o $binfile.ci
]
4805 # source $binfile.ci
4807 # Single Unix Spec v3 says that
"-E -o ..." together are not
4808 # specified. And in fact
, the native compiler
on hp
-ux
11 (among
4809 # others
) does not work with
"-E -o ...". Most targets used to do
4810 # this
, and it mostly worked
, because it works with gcc.
4812 #
[ catch
"exec $compiler -E $ifile > $binfile.ci" exec_output ]
4813 # source $binfile.ci
4815 # This avoids the problem with
-E and
-o together. This almost works
4816 #
if the build machine is the same as the host machine
, which is
4817 # usually true of the targets which are not gcc. But this code does
4818 # not figure which compiler to
call, and it always ends up using the C
4819 # compiler. Not good
for setting hp_aCC_compiler. Target
4820 # hppa
*-*-hpux
* used to
do this.
4822 #
[ gdb_compile
-E $ifile
> $binfile.ci
]
4823 # source $binfile.ci
4825 # dejagnu target_compile says that it supports output redirection
,
4826 # but the code is completely different from the
normal path and I
4827 # don
't want to sweep the mines from that path. So I didn't even try
4830 #
set cppout
[ gdb_compile $ifile
"" preprocess $args quiet ]
4833 # I actually
do this
for all targets now. gdb_compile runs the right
4834 # compiler
, and TCL captures the output
, and I eval the output.
4836 # Unfortunately
, expect logs the output of the command as it goes by
,
4837 # and dejagnu helpfully prints a second copy of it right afterwards.
4838 # So I turn
off expect logging
for a moment.
4840 #
[ gdb_compile $ifile $ciexe_file executable $
args ]
4841 #
[ remote_exec $ciexe_file
]
4842 #
[ source $ci_file.out
]
4844 # I could give up
on -E and just
do this.
4845 # I didn
't get desperate enough to try this.
4847 # -- chastain 2004-01-06
4849 proc get_compiler_info {{language "c"}} {
4851 # For compiler.c, compiler.cc and compiler.F90.
4854 # I am going to play with the log to keep noise out.
4858 # These come from compiler.c, compiler.cc or compiler.F90.
4859 gdb_persistent_global compiler_info_cache
4861 if [info exists compiler_info_cache($language)] {
4866 # Choose which file to preprocess.
4867 if { $language == "c++" } {
4868 set ifile "${srcdir}/lib/compiler.cc"
4869 } elseif { $language == "f90" } {
4870 set ifile "${srcdir}/lib/compiler.F90"
4871 } elseif { $language == "c" } {
4872 set ifile "${srcdir}/lib/compiler.c"
4874 perror "Unable to fetch compiler version for language: $language"
4878 # Run $ifile through the right preprocessor.
4879 # Toggle gdb.log to keep the compiler output out of the log.
4880 set saved_log [log_file -info]
4882 if [is_remote host] {
4883 # We have to use -E and -o together, despite the comments
4884 # above, because of how DejaGnu handles remote host testing.
4885 set ppout [standard_temp_file compiler.i]
4886 gdb_compile "${ifile}" "$ppout" preprocess [list "$language" quiet getting_compiler_info]
4887 set file [open $ppout r]
4888 set cppout [read $file]
4891 # Copy $ifile to temp dir, to work around PR gcc/60447. This will leave the
4892 # superfluous .s file in the temp dir instead of in the source dir.
4893 set tofile [file tail $ifile]
4894 set tofile [standard_temp_file $tofile]
4895 file copy -force $ifile $tofile
4897 set cppout [ gdb_compile "${ifile}" "" preprocess [list "$language" quiet getting_compiler_info] ]
4899 eval log_file $saved_log
4903 foreach cppline [ split "$cppout" "\n" ] {
4904 if { [ regexp "^#" "$cppline" ] } {
4906 } elseif { [ regexp "^\[\n\r\t \]*$" "$cppline" ] } {
4908 } elseif { [ regexp "^\[\n\r\t \]*set\[\n\r\t \]" "$cppline" ] } {
4910 verbose "get_compiler_info: $cppline" 2
4912 } elseif { [ regexp {[fc]lang.*warning.*'-fdiagnostics
-color
=never
'} "$cppline"] } {
4913 # Both flang preprocessors (llvm flang and classic flang) print a
4914 # warning for the unused -fdiagnostics-color=never, so we skip this
4916 # The armflang preprocessor has been observed to output the
4917 # warning prefixed with "clang", so the regex also accepts
4921 verbose -log "get_compiler_info: $cppline"
4926 # Set to unknown if for some reason compiler_info didn't
get defined.
4927 if ![info exists compiler_info
] {
4928 verbose
-log "get_compiler_info: compiler_info not provided"
4929 set compiler_info
"unknown"
4931 # Also
set to unknown compiler
if any diagnostics happened.
4933 verbose
-log "get_compiler_info: got unexpected diagnostics"
4934 set compiler_info
"unknown"
4937 set compiler_info_cache
($language
) $compiler_info
4939 #
Log what happened.
4940 verbose
-log "get_compiler_info: $compiler_info"
4945 #
Return the compiler_info string
if no
arg is provided.
4946 # Otherwise the
argument is a glob
-style expression to match against
4949 proc test_compiler_info
{ {compiler
""} {language "c"} } {
4950 gdb_persistent_global compiler_info_cache
4952 if [get_compiler_info $language
] {
4953 # An error will already have been printed in this case. Just
4954 #
return a suitable result depending
on how the user called
4956 if [string match
"" $compiler] {
4963 #
If no
arg, return the compiler_info string.
4964 if [string match
"" $compiler] {
4965 return $compiler_info_cache
($language
)
4968 return [string match $compiler $compiler_info_cache
($language
)]
4971 #
Return true
if the C compiler is GCC
, otherwise
, return false.
4973 proc is_c_compiler_gcc
{} {
4974 set compiler_info
[test_compiler_info
]
4975 set gcc_compiled false
4976 regexp
"^gcc-(\[0-9\]+)-" "$compiler_info" matchall gcc_compiled
4977 return $gcc_compiled
4980 #
Return the gcc major version
, or
-1.
4981 #
For gcc
4.8.5, the major version is
4.8.
4982 #
For gcc
7.5.0, the major version
7.
4983 # The COMPILER and LANGUAGE arguments are as
for test_compiler_info.
4985 proc gcc_major_version
{ {compiler
"gcc-*"} {language "c"} } {
4987 if { ![test_compiler_info $compiler $language
] } {
4990 #
Strip "gcc-*" to "gcc".
4991 regsub
-- {-.
*} $compiler
"" compiler
4992 set res
[regexp $compiler
-($decimal
)-($decimal
)- \
4993 [test_compiler_info
"" $language] \
4994 dummy_var major minor
]
5001 return $major.$minor
5004 proc current_target_name
{ } {
5006 if [info exists target_info
(target
,name)] {
5007 set answer $target_info
(target
,name)
5014 set gdb_wrapper_initialized
0
5015 set gdb_wrapper_target
""
5016 set gdb_wrapper_file
""
5017 set gdb_wrapper_flags
""
5019 proc gdb_wrapper_init
{ args } {
5020 global gdb_wrapper_initialized
5021 global gdb_wrapper_file
5022 global gdb_wrapper_flags
5023 global gdb_wrapper_target
5025 if { $gdb_wrapper_initialized
== 1 } { return; }
5027 if {[target_info
exists needs_status_wrapper
] && \
5028 [target_info needs_status_wrapper
] != "0"} {
5029 set result
[build_wrapper
"testglue.o"]
5030 if { $result
!= "" } {
5031 set gdb_wrapper_file
[lindex $result
0]
5032 if ![is_remote host
] {
5033 set gdb_wrapper_file
[file join
[pwd
] $gdb_wrapper_file
]
5035 set gdb_wrapper_flags
[lindex $result
1]
5037 warning
"Status wrapper failed to build."
5040 set gdb_wrapper_file
""
5041 set gdb_wrapper_flags
""
5043 verbose
"set gdb_wrapper_file = $gdb_wrapper_file"
5044 set gdb_wrapper_initialized
1
5045 set gdb_wrapper_target
[current_target_name
]
5048 # Determine options that we always want to pass to the compiler.
5049 gdb_caching_proc universal_compile_options
{} {
5050 set me
"universal_compile_options"
5053 set src
[standard_temp_file ccopts.c
]
5054 set obj [standard_temp_file ccopts.o
]
5056 gdb_produce_source $src
{
5057 int foo
(void
) { return 0; }
5060 # Try an option
for disabling colored diagnostics. Some compilers
5061 # yield colored diagnostics by default
(when run from a tty
) unless
5062 # such an option is specified.
5063 set opt
"additional_flags=-fdiagnostics-color=never"
5064 set lines
[target_compile $src $
obj object
[list
"quiet" $opt]]
5065 if {[string match
"" $lines]} {
5066 # Seems to have worked
; use the option.
5067 lappend options $opt
5072 verbose
"$me: returning $options" 2
5076 #
Compile the code in $code to a file based
on $
name, using the flags
5077 # $compile_flag as well as debug
, nowarning and quiet
(unless otherwise
5078 # specified in default_compile_flags
).
5079 #
Return 1 if code can be compiled
5080 # Leave the file
name of the resulting object in the upvar object.
5082 proc gdb_simple_compile
{name code
{type object
} {compile_flags
{}} {object
obj} {default_compile_flags
{}}} {
5085 switch -regexp
-- $type
{
5100 foreach flag $compile_flags
{
5101 if { "$flag" == "go" } {
5105 if { "$flag" eq "hip" } {
5109 if { "$flag" eq "d" } {
5114 set src
[standard_temp_file $
name.$ext
]
5115 set obj [standard_temp_file $
name.$postfix
]
5116 if { $default_compile_flags
== "" } {
5117 set compile_flags
[concat $compile_flags
{debug nowarnings quiet
}]
5119 set compile_flags
[concat $compile_flags $default_compile_flags
]
5122 gdb_produce_source $src $code
5124 verbose
"$name: compiling testfile $src" 2
5125 set lines
[gdb_compile $src $
obj $type $compile_flags
]
5129 if {![string match
"" $lines]} {
5130 verbose
"$name: compilation failed, returning 0" 2
5136 #
Compile the code in $code to a file based
on $
name, using the flags
5137 # $compile_flag as well as debug
, nowarning and quiet
(unless otherwise
5138 # specified in default_compile_flags
).
5139 #
Return 1 if code can be compiled
5140 #
Delete all created files and objects.
5142 proc gdb_can_simple_compile
{name code
{type object
} {compile_flags
""} {default_compile_flags ""}} {
5143 set ret
[gdb_simple_compile $
name $code $type $compile_flags temp_obj \
5144 $default_compile_flags
]
5145 file
delete $temp_obj
5149 # As gdb_can_simple_compile
, but defaults to using nodebug instead of debug.
5150 proc gdb_can_simple_compile_nodebug
{name code
{type object
} {compile_flags
""}
5151 {default_compile_flags
"nodebug nowarning quiet"}} {
5152 return [gdb_can_simple_compile $
name $code $type $compile_flags \
5153 $default_compile_flags
]
5156 # Some targets need to always link a special object in. Save its path here.
5157 global gdb_saved_set_unbuffered_mode_obj
5158 set gdb_saved_set_unbuffered_mode_obj
""
5160 # Escape STR sufficiently
for use
on host commandline.
5162 proc escape_for_host
{ str
} {
5163 if { [is_remote host
] } {
5173 return [string map $map $str
]
5176 # Add double quotes around
ARGS, sufficiently escaped
for use
on host
5179 proc quote_for_host
{ args } {
5180 set str
[join $
args]
5181 if { [is_remote host
] } {
5182 set str
[join
[list
{\"} $str
{\"}] ""]
5184 set str
[join
[list
{"} $str {"}] ""]
5189 #
Compile source files specified by SOURCE into a binary of type TYPE at path
5190 # DEST. gdb_compile is implemented using DejaGnu
's target_compile, so the type
5191 # parameter and most options are passed directly to it.
5193 # The type can be one of the following:
5195 # - object: Compile into an object file.
5196 # - executable: Compile and link into an executable.
5197 # - preprocess: Preprocess the source files.
5198 # - assembly: Generate assembly listing.
5200 # The following options are understood and processed by gdb_compile:
5202 # - shlib=so_path: Add SO_PATH to the sources, and enable some target-specific
5203 # quirks to be able to use shared libraries.
5204 # - shlib_load: Link with appropriate libraries to allow the test to
5205 # dynamically load libraries at runtime. For example, on Linux, this adds
5206 # -ldl so that the test can use dlopen.
5207 # - nowarnings: Inhibit all compiler warnings.
5208 # - pie: Force creation of PIE executables.
5209 # - nopie: Prevent creation of PIE executables.
5210 # - macros: Add the required compiler flag to include macro information in
5212 # - text_segment=addr: Tell the linker to place the text segment at ADDR.
5213 # - build-id: Ensure the final binary includes a build-id.
5214 # - column-info/no-column-info: Enable/Disable generation of column table
5217 # And here are some of the not too obscure options understood by DejaGnu that
5218 # influence the compilation:
5220 # - additional_flags=flag: Add FLAG to the compiler flags.
5221 # - libs=library: Add LIBRARY to the libraries passed to the linker. The
5222 # argument can be a file, in which case it's added to the sources
, or a
5224 #
- ldflags
=flag
: Add FLAG to the linker flags.
5225 #
- incdir
=path
: Add PATH to the searched
include directories.
5226 #
- libdir
=path
: Add PATH to the linker searched directories.
5227 #
- ada
, c
++, f90
, go
, rust
: Compile the file as Ada
, C
++,
5228 # Fortran
90, Go or Rust.
5229 #
- debug
: Build with debug information.
5230 #
- optimize
: Build with optimization.
5232 proc gdb_compile
{source dest type options
} {
5233 global GDB_TESTCASE_OPTIONS
5234 global gdb_wrapper_file
5235 global gdb_wrapper_flags
5238 global gdb_saved_set_unbuffered_mode_obj
5240 set outdir
[file dirname $dest
]
5242 #
If this is
set, calling test_compiler_info will cause recursion.
5243 if { [lsearch
-exact $options getting_compiler_info
] == -1 } {
5244 set getting_compiler_info false
5246 set getting_compiler_info true
5249 # Add platform
-specific options
if a shared library was specified using
5250 #
"shlib=librarypath" in OPTIONS.
5252 if {[lsearch
-exact $options rust
] != -1} {
5253 #
-fdiagnostics
-color is not a rustcc option.
5255 set new_options
[universal_compile_options
]
5258 # C
/C
++ specific settings.
5259 if {!$getting_compiler_info
5260 && [lsearch
-exact $options rust
] == -1
5261 && [lsearch
-exact $options ada
] == -1
5262 && [lsearch
-exact $options f90
] == -1
5263 && [lsearch
-exact $options go
] == -1} {
5265 # Some C
/C
++ testcases unconditionally pass
-Wno
-foo as additional
5266 # options to disable some warning. That is OK with GCC
, because
5267 # by design
, GCC accepts
any -Wno
-foo option
, even
if it doesn
't
5268 # support -Wfoo. Clang however warns about unknown -Wno-foo by
5269 # default, unless you pass -Wno-unknown-warning-option as well.
5270 # We do that here, so that individual testcases don't have to
5272 if {[test_compiler_info
"clang-*"] || [test_compiler_info "icx-*"]} {
5273 lappend new_options
"additional_flags=-Wno-unknown-warning-option"
5274 } elseif
{[test_compiler_info
"icc-*"]} {
5275 # This is the equivalent
for the icc compiler.
5276 lappend new_options
"additional_flags=-diag-disable=10148"
5279 # icpx
/icx give the following warning
if '-g' is used without
'-O'.
5281 # icpx
: remark
: Note that use of
'-g' without
any
5282 # optimization
-level option will turn
off most compiler
5283 # optimizations similar to use of
'-O0'
5285 # The warning makes dejagnu think that compilation has failed.
5287 # Furthermore
, if no
-O flag is passed
, icx and icc optimize
5288 # the code by default. This breaks assumptions in many GDB
5289 # tests that the code is unoptimized by default.
5291 # To fix both problems
, pass the
-O0 flag explicitly
, if no
5292 # optimization option is given.
5293 if {[test_compiler_info
"icx-*"] || [test_compiler_info "icc-*"]} {
5294 if {[lsearch $options optimize
=*] == -1
5295 && [lsearch $options additional_flags
=-O
*] == -1} {
5296 lappend new_options
"optimize=-O0"
5300 # Starting with
2021.7.0 (recognized as icc
-20-21-7 by GDB
) icc and
5301 # icpc are marked as deprecated and both compilers emit the remark
5302 # #
10441. To let GDB still
compile successfully
, we disable these
5304 if {([lsearch
-exact $options c
++] != -1
5305 && [test_compiler_info
{icc
-20-21-[7-9]} c
++])
5306 ||
[test_compiler_info
{icc
-20-21-[7-9]}]} {
5307 lappend new_options
"additional_flags=-diag-disable=10441"
5311 #
If the
'build-id' option is used
, then ensure that we generate a
5312 # build
-id. GCC does this by default
, but Clang does not
, so
5314 if {[lsearch
-exact $options build
-id
] > 0
5315 && [test_compiler_info
"clang-*"]} {
5316 lappend new_options
"additional_flags=-Wl,--build-id"
5319 # Treating .c input files as C
++ is deprecated in Clang
, so
5320 # explicitly force C
++ language.
5321 if { !$getting_compiler_info
5322 && [lsearch
-exact $options c
++] != -1
5323 && [string match
*.c $source
] != 0 } {
5325 # gdb_compile cannot handle this combination of options
, the
5326 # result is a command like
"clang -x c++ foo.c bar.so -o baz"
5327 # which tells Clang to treat bar.so as C
++. The solution is
5328 # to
call gdb_compile twice
--once to
compile, once to link
--
5329 # either directly
, or via build_executable_from_specs.
5330 if { [lsearch $options shlib
=*] != -1 } {
5331 error
"incompatible gdb_compile options"
5334 if {[test_compiler_info
"clang-*"]} {
5335 lappend new_options early_flags
=-x\ c
++
5339 # Place
(and look
for) Fortran `.mod` files in the output
5340 # directory
for this specific test.
For Intel compilers the
-J
5341 # option is not supported so instead use the
-module flag.
5342 # Additionally
, Intel compilers need the
-debug
-parameters flag
set to
5343 # emit debug
info for all parameters in modules.
5345 # ifx gives the following warning
if '-g' is used without
'-O'.
5347 # ifx
: remark #
10440: Note that use of a debug option
5348 # without
any optimization
-level option will turnoff most
5349 # compiler optimizations similar to use of
'-O0'
5351 # The warning makes dejagnu think that compilation has failed.
5353 # Furthermore
, if no
-O flag is passed
, Intel compilers optimize
5354 # the code by default. This breaks assumptions in many GDB
5355 # tests that the code is unoptimized by default.
5357 # To fix both problems
, pass the
-O0 flag explicitly
, if no
5358 # optimization option is given.
5359 if { !$getting_compiler_info
&& [lsearch
-exact $options f90
] != -1 } {
5361 set mod_path
[standard_output_file
""]
5362 if { [test_compiler_info
{gfortran
-*} f90
] } {
5363 lappend new_options
"additional_flags=-J${mod_path}"
5364 } elseif
{ [test_compiler_info
{ifort
-*} f90
]
5365 ||
[test_compiler_info
{ifx
-*} f90
] } {
5366 lappend new_options
"additional_flags=-module ${mod_path}"
5367 lappend new_options
"additional_flags=-debug-parameters all"
5369 if {[lsearch $options optimize
=*] == -1
5370 && [lsearch $options additional_flags
=-O
*] == -1} {
5371 lappend new_options
"optimize=-O0"
5378 foreach opt $options
{
5379 if {[regexp
{^shlib
=(.
*)} $opt dummy_var shlib_name
]
5380 && $type
== "executable"} {
5381 if [test_compiler_info
"xlc-*"] {
5382 # IBM xlc compiler doesn
't accept shared library named other
5383 # than .so: use "-Wl," to bypass this
5384 lappend source "-Wl,$shlib_name"
5385 } elseif { ([istarget "*-*-mingw*"]
5386 || [istarget *-*-cygwin*]
5387 || [istarget *-*-pe*])} {
5388 lappend source "${shlib_name}.a"
5390 lappend source $shlib_name
5392 if { $shlib_found == 0 } {
5394 if { ([istarget "*-*-mingw*"]
5395 || [istarget *-*-cygwin*]) } {
5396 lappend new_options "ldflags=-Wl,--enable-auto-import"
5398 if { [test_compiler_info "gcc-*"] || [test_compiler_info "clang-*"] } {
5399 # Undo debian's change in the default.
5400 # Put it at the front to not override
any user
-provided
5401 # value
, and to make sure it appears in front of all the
5403 lappend new_options
"early_flags=-Wl,--no-as-needed"
5406 } elseif
{ $opt
== "shlib_load" && $type == "executable" } {
5408 } elseif
{ $opt
== "getting_compiler_info" } {
5409 # Ignore this setting here as it has been handled earlier in this
5410 # procedure.
Do not append it to new_options as this will cause
5412 } elseif
{[regexp
"^text_segment=(.*)" $opt dummy_var addr]} {
5413 if { [linker_supports_Ttext_segment_flag
] } {
5415 lappend new_options
"ldflags=-Wl,-Ttext-segment=$addr"
5416 } elseif
{ [linker_supports_image_base_flag
] } {
5418 lappend new_options "ldflags=-Wl,--image-base=$addr"
5419 } elseif { [linker_supports_Ttext_flag] } {
5420 # For old GNU gold versions.
5421 lappend new_options "ldflags=-Wl,-Ttext=$addr"
5423 error "Don't know how to handle text_segment option.
"
5425 } elseif
{ $opt
== "column-info" } {
5426 #
If GCC or clang does not support column
-info, compilation
5427 # will fail and the usupported column
-info option will be
5429 if {[test_compiler_info
{gcc
-*}]} {
5430 lappend new_options
"additional_flags=-gcolumn-info"
5432 } elseif
{[test_compiler_info
{clang
-*}]} {
5433 lappend new_options
"additional_flags=-gcolumn-info"
5436 error
"Option gcolumn-info not supported by compiler."
5439 } elseif
{ $opt
== "no-column-info" } {
5440 if {[test_compiler_info
{gcc
-*}]} {
5441 if {[test_compiler_info
{gcc
-[1-6]-*}]} {
5442 # In this case
, don
't add the compile line option and
5443 # the result will be the same as using no-column-info
5444 # on a version that supports the option.
5445 warning "gdb_compile option no-column-info not supported, ignoring."
5447 lappend new_options "additional_flags=-gno-column-info"
5450 } elseif {[test_compiler_info {clang-*}]} {
5451 lappend new_options "additional_flags=-gno-column-info"
5454 error "Option gno-column-info not supported by compiler."
5458 lappend new_options $opt
5462 # Ensure stack protector is disabled for GCC, as this causes problems with
5463 # DWARF line numbering.
5464 # See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88432
5465 # This option defaults to on for Debian/Ubuntu.
5466 if { !$getting_compiler_info
5467 && [test_compiler_info {gcc-*-*}]
5468 && !([test_compiler_info {gcc-[0-3]-*}]
5469 || [test_compiler_info {gcc-4-0-*}])
5470 && [lsearch -exact $options rust] == -1} {
5471 # Put it at the front to not override any user-provided value.
5472 lappend new_options "early_flags=-fno-stack-protector"
5475 # hipcc defaults to -O2, so add -O0 to early flags for the hip language.
5476 # If "optimize" is also requested, another -O flag (e.g. -O2) will be added
5477 # to the flags, overriding this -O0.
5478 if {[lsearch -exact $options hip] != -1} {
5479 lappend new_options "early_flags=-O0"
5482 # Because we link with libraries using their basename, we may need
5483 # (depending on the platform) to set a special rpath value, to allow
5484 # the executable to find the libraries it depends on.
5485 if { $shlib_load || $shlib_found } {
5486 if { ([istarget "*-*-mingw*"]
5487 || [istarget *-*-cygwin*]
5488 || [istarget *-*-pe*]) } {
5489 # Do not need anything.
5490 } elseif { [istarget *-*-freebsd*] || [istarget *-*-openbsd*] } {
5491 lappend new_options "ldflags=-Wl,-rpath,${outdir}"
5493 if { $shlib_load } {
5494 lappend new_options "libs=-ldl"
5496 lappend new_options [escape_for_host {ldflags=-Wl,-rpath,$ORIGIN}]
5499 set options $new_options
5501 if [info exists GDB_TESTCASE_OPTIONS] {
5502 lappend options "additional_flags=$GDB_TESTCASE_OPTIONS"
5504 verbose "options are $options"
5505 verbose "source is $source $dest $type $options"
5509 if {[target_info exists needs_status_wrapper] && \
5510 [target_info needs_status_wrapper] != "0" && \
5511 $gdb_wrapper_file != "" } {
5512 lappend options "libs=${gdb_wrapper_file}"
5513 lappend options "ldflags=${gdb_wrapper_flags}"
5516 # Replace the "nowarnings" option with the appropriate additional_flags
5517 # to disable compiler warnings.
5518 set nowarnings [lsearch -exact $options nowarnings]
5519 if {$nowarnings != -1} {
5520 if [target_info exists gdb,nowarnings_flag] {
5521 set flag "additional_flags=[target_info gdb,nowarnings_flag]"
5523 set flag "additional_flags=-w"
5525 set options [lreplace $options $nowarnings $nowarnings $flag]
5528 # Replace the "pie" option with the appropriate compiler and linker flags
5529 # to enable PIE executables.
5530 set pie [lsearch -exact $options pie]
5532 if [target_info exists gdb,pie_flag] {
5533 set flag "additional_flags=[target_info gdb,pie_flag]"
5535 # For safety, use fPIE rather than fpie. On AArch64, m68k, PowerPC
5536 # and SPARC, fpie can cause compile errors due to the GOT exceeding
5537 # a maximum size. On other architectures the two flags are
5538 # identical (see the GCC manual). Note Debian9 and Ubuntu16.10
5539 # onwards default GCC to using fPIE. If you do require fpie, then
5540 # it can be set using the pie_flag.
5541 set flag "additional_flags=-fPIE"
5543 set options [lreplace $options $pie $pie $flag]
5545 if [target_info exists gdb,pie_ldflag] {
5546 set flag "ldflags=[target_info gdb,pie_ldflag]"
5548 set flag "ldflags=-pie"
5550 lappend options "$flag"
5553 # Replace the "nopie" option with the appropriate compiler and linker
5554 # flags to disable PIE executables.
5555 set nopie [lsearch -exact $options nopie]
5557 if [target_info exists gdb,nopie_flag] {
5558 set flag "additional_flags=[target_info gdb,nopie_flag]"
5560 set flag "additional_flags=-fno-pie"
5562 set options [lreplace $options $nopie $nopie $flag]
5564 if [target_info exists gdb,nopie_ldflag] {
5565 set flag "ldflags=[target_info gdb,nopie_ldflag]"
5567 set flag "ldflags=-no-pie"
5569 lappend options "$flag"
5572 set macros [lsearch -exact $options macros]
5573 if {$macros != -1} {
5574 if { [test_compiler_info "clang-*"] } {
5575 set flag "additional_flags=-fdebug-macro"
5577 set flag "additional_flags=-g3"
5580 set options [lreplace $options $macros $macros $flag]
5583 if { $type == "executable" } {
5584 if { ([istarget "*-*-mingw*"]
5585 || [istarget "*-*-*djgpp"]
5586 || [istarget "*-*-cygwin*"])} {
5587 # Force output to unbuffered mode, by linking in an object file
5588 # with a global contructor that calls setvbuf.
5590 # Compile the special object separately for two reasons:
5591 # 1) Insulate it from $options.
5592 # 2) Avoid compiling it for every gdb_compile invocation,
5593 # which is time consuming, especially if we're remote
5596 # Note the special care
for GDB_PARALLEL. In that
5597 # scenario
, multiple expect instances will potentially try
5598 # to
compile the object file at the same time. The result
5599 # should be identical
for every one of them
, so we just
5600 # need to make sure that the final objfile is written to
5603 if { $gdb_saved_set_unbuffered_mode_obj
== "" } {
5604 verbose
"compiling gdb_saved_set_unbuffered_obj"
5605 set unbuf_src $
{srcdir
}/lib
/set_unbuffered_mode.c
5606 # This gives us a per
-expect
-instance unique filename
,
5607 # which is important
for GDB_PARALLEL. See comments
5609 set unbuf_obj
[standard_temp_file set_unbuffered_mode.o
]
5611 set result
[gdb_compile
"${unbuf_src}" "${unbuf_obj}" object {nowarnings}]
5612 if { $result
!= "" } {
5615 if {[is_remote host
]} {
5616 set gdb_saved_set_unbuffered_mode_obj set_unbuffered_mode_saved.o
5618 set gdb_saved_set_unbuffered_mode_obj $
{objdir
}/set_unbuffered_mode_saved.o
5620 # Link a copy of the output object
, because the
5621 # original may be automatically deleted.
5622 if {[info exists ::GDB_PARALLEL
]} {
5623 # Make sure to write the .o file atomically.
5624 #
(Note GDB_PARALLEL
mode does not support remote
5626 file
rename -force
-- $unbuf_obj $gdb_saved_set_unbuffered_mode_obj
5628 remote_download host $unbuf_obj $gdb_saved_set_unbuffered_mode_obj
5631 verbose
"gdb_saved_set_unbuffered_obj already compiled"
5634 # Rely
on the internal knowledge that the global ctors are ran in
5635 # reverse link order. In that case
, we can use ldflags to
5636 # avoid copying the object file to the host multiple
5638 # This object can only be added
if standard libraries are
5639 # used. Thus
, we need to disable it
if -nostdlib option is used
5640 if {[lsearch
-regexp $options
"-nostdlib"] < 0 } {
5641 lappend options
"ldflags=$gdb_saved_set_unbuffered_mode_obj"
5646 cond_wrap
[expr $pie
!= -1 || $nopie
!= -1] \
5647 with_PIE_multilib_flags_filtered
{
5648 set result
[target_compile $source $dest $type $options
]
5651 # Prune uninteresting compiler
(and linker
) output.
5652 regsub
"Creating library file: \[^\r\n\]*\[\r\n\]+" $result "" result
5654 # Starting with
2021.7.0 icc and icpc are marked as deprecated and both
5655 # compilers emit a remark #
10441. To let GDB still
compile successfully
,
5656 # we disable these warnings. When $getting_compiler_info is true however
,
5657 # we
do not yet know the compiler
(nor its version
) and instead prune these
5658 # lines from the compiler output to let the get_compiler_info pass.
5659 if {$getting_compiler_info
} {
5661 "(icc|icpc): remark #10441: The Intel\\(R\\) C\\+\\+ Compiler Classic \\(ICC\\) is deprecated\[^\r\n\]*" \
5665 regsub
"\[\r\n\]*$" "$result" "" result
5666 regsub
"^\[\r\n\]*" "$result" "" result
5668 if { $type
== "executable" && $result == "" \
5669 && ($nopie
!= -1 || $pie
!= -1) } {
5670 set is_pie
[exec_is_pie
"$dest"]
5671 if { $nopie
!= -1 && $is_pie
== 1 } {
5672 set result
"nopie failed to prevent PIE executable"
5673 } elseif
{ $pie
!= -1 && $is_pie
== 0 } {
5674 set result
"pie failed to generate PIE executable"
5678 if {[lsearch $options quiet
] < 0} {
5679 if { $result
!= "" } {
5680 clone_output
"gdb compile failed, $result"
5687 # This is just like gdb_compile
, above
, except that it tries compiling
5688 # against several different thread libraries
, to see which one this
5690 proc gdb_compile_pthreads
{source dest type options
} {
5691 if {$type
!= "executable"} {
5692 return [gdb_compile $source $dest $type $options
]
5695 set why_msg
"unrecognized error"
5696 foreach lib
{-lpthreads
-lpthread
-lthread
""} {
5697 # This kind of wipes out whatever libs the caller may have
5698 #
set. Or maybe theirs will override ours. How infelicitous.
5699 set options_with_lib
[concat $options
[list libs
=$lib quiet
]]
5700 set ccout
[gdb_compile $source $dest $type $options_with_lib
]
5701 switch -regexp
-- $ccout
{
5702 ".*no posix threads support.*" {
5703 set why_msg
"missing threads include file"
5706 ".*cannot open -lpthread.*" {
5707 set why_msg
"missing runtime threads library"
5709 ".*Can't find library for -lpthread.*" {
5710 set why_msg
"missing runtime threads library"
5713 pass
"successfully compiled posix threads test case"
5719 if {!$built_binfile
} {
5720 unsupported
"couldn't compile [file tail $source]: ${why_msg}"
5725 # Build a shared library from SOURCES.
5727 proc gdb_compile_shlib_1
{sources dest options
} {
5728 set obj_options $options
5731 if { [lsearch
-exact $options
"ada"] >= 0 } {
5735 if { [lsearch
-exact $options
"c++"] >= 0 } {
5736 set info_options
"c++"
5737 } elseif
{ [lsearch
-exact $options
"f90"] >= 0 } {
5738 set info_options
"f90"
5740 set info_options
"c"
5743 switch -glob
[test_compiler_info
"" ${info_options}] {
5745 lappend obj_options
"additional_flags=-qpic"
5748 if { [istarget
"*-*-cygwin*"]
5749 ||
[istarget
"*-*-mingw*"] } {
5750 lappend obj_options
"additional_flags=-fPIC"
5752 lappend obj_options
"additional_flags=-fpic"
5756 if { [istarget
"powerpc*-*-aix*"]
5757 ||
[istarget
"rs6000*-*-aix*"]
5758 ||
[istarget
"*-*-cygwin*"]
5759 ||
[istarget
"*-*-mingw*"]
5760 ||
[istarget
"*-*-pe*"] } {
5761 lappend obj_options
"additional_flags=-fPIC"
5763 lappend obj_options
"additional_flags=-fpic"
5767 lappend obj_options
"additional_flags=-fpic"
5770 # don
't know what the compiler is...
5771 lappend obj_options "additional_flags=-fPIC"
5775 set outdir [file dirname $dest]
5777 foreach source $sources {
5778 if {[file extension $source] == ".o"} {
5779 # Already a .o file.
5780 lappend objects $source
5784 set sourcebase [file tail $source]
5787 # Gnatmake doesn't like object
name foo.adb.o
, use foo.o.
5788 set sourcebase
[file rootname $sourcebase
]
5790 set object $
{outdir
}/$
{sourcebase
}.o
5793 # Use gdb_compile_ada_1 instead of gdb_compile_ada to avoid the
5795 if {[gdb_compile_ada_1 $source $object object \
5796 $obj_options
] != ""} {
5800 if {[gdb_compile $source $object object \
5801 $obj_options
] != ""} {
5806 lappend objects $object
5809 set link_options $options
5811 #
If we try to use gnatmake
for the link
, it will interpret the
5812 # object file as an .adb file. Remove ada from the options to
5814 set idx
[lsearch $link_options
"ada"]
5815 set link_options
[lreplace $link_options $idx $idx
]
5817 if [test_compiler_info
"xlc-*"] {
5818 lappend link_options
"additional_flags=-qmkshrobj"
5820 lappend link_options
"additional_flags=-shared"
5822 if { ([istarget
"*-*-mingw*"]
5823 ||
[istarget
*-*-cygwin
*]
5824 ||
[istarget
*-*-pe
*]) } {
5825 if { [is_remote host
] } {
5826 set name [file tail $
{dest
}]
5830 lappend link_options
"ldflags=-Wl,--out-implib,${name}.a"
5832 #
Set the soname of the library. This causes the linker
on ELF
5833 # systems to create the DT_NEEDED entry in the executable referring
5834 # to the soname of the library
, and not its absolute path. This
5835 #
(using the absolute path
) would be problem when testing
on a
5838 # In conjunction with setting the soname
, we add the special
5839 # rpath
=$ORIGIN value when building the executable
, so that it
's
5840 # able to find the library in its own directory.
5841 set destbase [file tail $dest]
5842 lappend link_options "ldflags=-Wl,-soname,$destbase"
5845 if {[gdb_compile "${objects}" "${dest}" executable $link_options] != ""} {
5848 if { [is_remote host]
5849 && ([istarget "*-*-mingw*"]
5850 || [istarget *-*-cygwin*]
5851 || [istarget *-*-pe*]) } {
5852 set dest_tail_name [file tail ${dest}]
5853 remote_upload host $dest_tail_name.a ${dest}.a
5854 remote_file host delete $dest_tail_name.a
5860 # Ignore FLAGS in target board multilib_flags while executing BODY.
5862 proc with_multilib_flags_filtered { flags body } {
5865 # Ignore flags in multilib_flags.
5866 set board [target_info name]
5867 set multilib_flags_orig [board_info $board multilib_flags]
5868 set multilib_flags ""
5869 foreach op $multilib_flags_orig {
5870 if { [lsearch -exact $flags $op] == -1 } {
5871 append multilib_flags " $op"
5875 save_target_board_info { multilib_flags } {
5876 unset_board_info multilib_flags
5877 set_board_info multilib_flags "$multilib_flags"
5878 set result [uplevel 1 $body]
5884 # Ignore PIE-related flags in target board multilib_flags while executing BODY.
5886 proc with_PIE_multilib_flags_filtered { body } {
5887 set pie_flags [list "-pie" "-no-pie" "-fPIE" "-fno-PIE"]
5888 return [uplevel 1 [list with_multilib_flags_filtered $pie_flags $body]]
5891 # Build a shared library from SOURCES. Ignore target boards PIE-related
5894 proc gdb_compile_shlib {sources dest options} {
5895 with_PIE_multilib_flags_filtered {
5896 set result [gdb_compile_shlib_1 $sources $dest $options]
5902 # This is just like gdb_compile_shlib, above, except that it tries compiling
5903 # against several different thread libraries, to see which one this
5905 proc gdb_compile_shlib_pthreads {sources dest options} {
5907 set why_msg "unrecognized error"
5908 foreach lib {-lpthreads -lpthread -lthread ""} {
5909 # This kind of wipes out whatever libs the caller may have
5910 # set. Or maybe theirs will override ours. How infelicitous.
5911 set options_with_lib [concat $options [list libs=$lib quiet]]
5912 set ccout [gdb_compile_shlib $sources $dest $options_with_lib]
5913 switch -regexp -- $ccout {
5914 ".*no posix threads support.*" {
5915 set why_msg "missing threads include file"
5918 ".*cannot open -lpthread.*" {
5919 set why_msg "missing runtime threads library"
5921 ".*Can't find library
for -lpthread.
*" {
5922 set why_msg
"missing runtime threads library"
5925 pass
"successfully compiled posix threads shlib test case"
5931 if {!$built_binfile
} {
5932 unsupported
"couldn't compile $sources: ${why_msg}"
5937 # This is just like gdb_compile_pthreads
, above
, except that we always add the
5938 # objc library
for compiling Objective
-C programs
5939 proc gdb_compile_objc
{source dest type options
} {
5941 set why_msg
"unrecognized error"
5942 foreach lib
{-lobjc
-lpthreads
-lpthread
-lthread solaris
} {
5943 # This kind of wipes out whatever libs the caller may have
5944 #
set. Or maybe theirs will override ours. How infelicitous.
5945 if { $lib
== "solaris" } {
5946 set lib
"-lpthread -lposix4"
5948 if { $lib
!= "-lobjc" } {
5949 set lib
"-lobjc $lib"
5951 set options_with_lib
[concat $options
[list libs
=$lib quiet
]]
5952 set ccout
[gdb_compile $source $dest $type $options_with_lib
]
5953 switch -regexp
-- $ccout
{
5954 ".*no posix threads support.*" {
5955 set why_msg
"missing threads include file"
5958 ".*cannot open -lpthread.*" {
5959 set why_msg
"missing runtime threads library"
5961 ".*Can't find library for -lpthread.*" {
5962 set why_msg
"missing runtime threads library"
5965 pass
"successfully compiled objc with posix threads test case"
5971 if {!$built_binfile
} {
5972 unsupported
"couldn't compile [file tail $source]: ${why_msg}"
5977 # Build an OpenMP
program from SOURCE. See prefatory comment
for
5978 # gdb_compile
, above
, for discussion of the parameters to this proc.
5980 proc gdb_compile_openmp
{source dest type options
} {
5981 lappend options
"additional_flags=-fopenmp"
5982 return [gdb_compile $source $dest $type $options
]
5985 # Send a command to GDB.
5986 #
For options
for TYPE see gdb_stdin_log_write
5988 proc send_gdb
{ string
{type standard
}} {
5989 gdb_stdin_log_write $string $type
5990 return [remote_send host
"$string"]
5993 # Send STRING to the inferior
's terminal.
5995 proc send_inferior { string } {
5996 global inferior_spawn_id
5998 if {[catch "send -i $inferior_spawn_id -- \$string" errorInfo]} {
6008 proc gdb_expect { args } {
6009 if { [llength $args] == 2 && [lindex $args 0] != "-re" } {
6010 set atimeout [lindex $args 0]
6011 set expcode [list [lindex $args 1]]
6016 # A timeout argument takes precedence, otherwise of all the timeouts
6017 # select the largest.
6018 if [info exists atimeout] {
6021 set tmt [get_largest_timeout]
6025 {uplevel remote_expect host $tmt $expcode} string]
6028 global errorInfo errorCode
6030 return -code error -errorinfo $errorInfo -errorcode $errorCode $string
6032 return -code $code $string
6036 # gdb_expect_list TEST SENTINEL LIST -- expect a sequence of outputs
6038 # Check for long sequence of output by parts.
6039 # TEST: is the test message to be printed with the test success/fail.
6040 # SENTINEL: Is the terminal pattern indicating that output has finished.
6041 # LIST: is the sequence of outputs to match.
6042 # If the sentinel is recognized early, it is considered an error.
6045 # 1 if the test failed,
6046 # 0 if the test passes,
6047 # -1 if there was an internal error.
6049 proc gdb_expect_list {test sentinel list} {
6054 while { ${index} < [llength ${list}] } {
6055 set pattern [lindex ${list} ${index}]
6056 set index [expr ${index} + 1]
6057 verbose -log "gdb_expect_list pattern: /$pattern/" 2
6058 if { ${index} == [llength ${list}] } {
6061 -re "${pattern}${sentinel}" {
6062 # pass "${test}, pattern ${index} + sentinel"
6065 fail "${test} (pattern ${index} + sentinel)"
6068 -re ".*A problem internal to GDB has been detected" {
6069 fail "${test} (GDB internal error)"
6071 gdb_internal_error_resync
6074 fail "${test} (pattern ${index} + sentinel) (timeout)"
6079 # unresolved "${test}, pattern ${index} + sentinel"
6085 # pass "${test}, pattern ${index}"
6088 fail "${test} (pattern ${index})"
6091 -re ".*A problem internal to GDB has been detected" {
6092 fail "${test} (GDB internal error)"
6094 gdb_internal_error_resync
6097 fail "${test} (pattern ${index}) (timeout)"
6102 # unresolved "${test}, pattern ${index}"
6114 # Spawn the gdb process.
6116 # This doesn't expect
any output or
do any other initialization
,
6117 # leaving those to the caller.
6119 # Overridable function
-- you can override this function in your
6122 proc gdb_spawn
{ } {
6126 # Spawn GDB with CMDLINE_FLAGS appended to the GDBFLAGS global.
6128 proc gdb_spawn_with_cmdline_opts
{ cmdline_flags
} {
6131 set saved_gdbflags $GDBFLAGS
6133 if {$GDBFLAGS
!= ""} {
6136 append GDBFLAGS $cmdline_flags
6140 set GDBFLAGS $saved_gdbflags
6145 # Start gdb running
, wait
for prompt
, and disable the pagers.
6147 # Overridable function
-- you can override this function in your
6150 proc gdb_start
{ } {
6155 catch default_gdb_exit
6158 #
Return true
if we can spawn a
program on the target and attach to
6161 proc can_spawn_for_attach
{ } {
6162 # We use exp_pid to
get the inferior
's pid, assuming that gives
6163 # back the pid of the program. On remote boards, that would give
6164 # us instead the PID of e.g., the ssh client, etc.
6165 if {[is_remote target]} {
6166 verbose -log "can't spawn
for attach
(target is remote
)"
6170 # The
"attach" command doesn't make sense when the target is
6171 # stub
-like
, where GDB finds the
program already started
on
6172 # initial connection.
6173 if {[target_info
exists use_gdb_stub
]} {
6174 verbose
-log "can't spawn for attach (target is stub)"
6182 # Centralize the failure checking of
"attach" command.
6183 #
Return 0 if attach failed
, otherwise
return 1.
6185 proc gdb_attach
{ testpid
args } {
6190 if { [llength $
args] != 0 } {
6191 error
"Unexpected arguments: $args"
6194 gdb_test_multiple
"attach $testpid" "attach" {
6195 -re
-wrap
"Attaching to.*ptrace: Operation not permitted\\." {
6196 unsupported
"$gdb_test_name (Operation not permitted)"
6199 -re
-wrap
"$pattern" {
6208 # Start gdb with
"--pid $TESTPID" on the command line and wait for the prompt.
6209 #
Return 1 if GDB managed to start and attach to the process
, 0 otherwise.
6211 proc_with_prefix gdb_spawn_attach_cmdline
{ testpid
} {
6212 if ![can_spawn_for_attach
] {
6213 # The caller should have checked can_spawn_for_attach itself
6214 # before getting here.
6215 error
"can't spawn for attach with this target/board"
6218 set test
"start gdb with --pid"
6219 set res
[gdb_spawn_with_cmdline_opts
"-quiet --pid=$testpid"]
6225 gdb_test_multiple
"" "$test" {
6226 -re
-wrap
"ptrace: Operation not permitted\\." {
6227 unsupported
"$gdb_test_name (operation not permitted)"
6230 -re
-wrap
"ptrace: No such process\\." {
6231 fail
"$gdb_test_name (no such process)"
6234 -re
-wrap
"Attaching to process $testpid\r\n.*" {
6239 # Check that we actually attached to a process
, in case the
6240 # error message is not caught by the patterns above.
6241 gdb_test_multiple
"info thread" "" {
6242 -re
-wrap
"No threads\\." {
6243 fail
"$gdb_test_name (no thread)"
6254 # Kill a progress previously started with spawn_wait_for_attach
, and
6255 # reap its wait
status. PROC_SPAWN_ID is the spawn id associated with
6258 proc kill_wait_spawned_process
{ proc_spawn_id
} {
6259 set pid
[exp_pid
-i $proc_spawn_id
]
6261 verbose
-log "killing ${pid}"
6262 remote_exec build
"kill -9 ${pid}"
6264 verbose
-log "closing ${proc_spawn_id}"
6265 catch
"close -i $proc_spawn_id"
6266 verbose
-log "waiting for ${proc_spawn_id}"
6268 #
If somehow GDB ends up still attached to the process here
, a
6269 # blocking wait hangs until gdb is killed
(or until gdb
/ the
6270 # ptracer reaps the exit
status too
, but that won
't happen because
6271 # something went wrong.) Passing -nowait makes expect tell Tcl to
6272 # wait for the PID in the background. That's fine because we
6273 # don
't care about the exit status. */
6274 wait -nowait -i $proc_spawn_id
6275 clean_up_spawn_id target $proc_spawn_id
6278 # Returns the process id corresponding to the given spawn id.
6280 proc spawn_id_get_pid { spawn_id } {
6281 set testpid [exp_pid -i $spawn_id]
6283 if { [istarget "*-*-cygwin*"] } {
6284 # testpid is the Cygwin PID, GDB uses the Windows PID, which
6285 # might be different due to the way fork/exec works.
6286 set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ]
6292 # Start a set of programs running and then wait for a bit, to be sure
6293 # that they can be attached to. Return a list of processes spawn IDs,
6294 # one element for each process spawned. It's a test error to
call
6295 # this when
[can_spawn_for_attach
] is false.
6297 proc spawn_wait_for_attach
{ executable_list
} {
6298 set spawn_id_list
{}
6300 if ![can_spawn_for_attach
] {
6301 # The caller should have checked can_spawn_for_attach itself
6302 # before getting here.
6303 error
"can't spawn for attach with this target/board"
6306 foreach
{executable
} $executable_list
{
6307 # Note we use Expect
's spawn, not Tcl's exec
, because with
6308 # spawn we control when to wait
for/reap the process. That
6309 # allows killing the process by PID without being subject to
6311 lappend spawn_id_list
[remote_spawn target $executable
]
6316 return $spawn_id_list
6320 # gdb_load_cmd
-- load a file into the debugger.
6321 #
ARGS - additional
args to
load command.
6322 #
return a
-1 if anything goes wrong.
6324 proc gdb_load_cmd
{ args } {
6327 if [target_info
exists gdb_load_timeout
] {
6328 set loadtimeout
[target_info gdb_load_timeout
]
6330 set loadtimeout
1600
6332 send_gdb
"load $args\n"
6333 verbose
"Timeout is now $loadtimeout seconds" 2
6334 gdb_expect $loadtimeout
{
6335 -re
"Loading section\[^\r\]*\r\n" {
6338 -re
"Start address\[\r\]*\r\n" {
6341 -re
"Transfer rate\[\r\]*\r\n" {
6344 -re
"Memory access error\[^\r\]*\r\n" {
6345 perror
"Failed to load program"
6348 -re
"$gdb_prompt $" {
6351 -re
"(.*)\r\n$gdb_prompt " {
6352 perror
"Unexpected response from 'load' -- $expect_out(1,string)"
6356 perror
"Timed out trying to load $args."
6363 # Invoke
"gcore". CORE is the name of the core file to write. TEST
6364 # is the
name of the test case. This will
return 1 if the core file
6365 # was created
, 0 otherwise.
If this fails to make a core file because
6366 # this configuration of gdb does not support making core files
, it
6367 # will
call "unsupported", not "fail". However, if this fails to make
6368 # a core file
for some other reason
, then it will
call "fail".
6370 proc gdb_gcore_cmd
{core test
} {
6375 set re_unsupported \
6376 "(?:Can't create a corefile|Target does not support core file generation\\.)"
6378 with_timeout_factor
3 {
6379 gdb_test_multiple
"gcore $core" $test {
6380 -re
-wrap
"Saved corefile .*" {
6384 -re
-wrap $re_unsupported
{
6393 #
Load core file CORE. TEST is the
name of the test case.
6394 # This will record a pass
/fail
for loading the core file.
6396 #
1 - core file is successfully loaded
6397 #
0 - core file loaded but has a non fatal error
6398 #
-1 - core file failed to
load
6400 proc gdb_core_cmd
{ core test
} {
6403 gdb_test_multiple
"core $core" "$test" {
6404 -re
"\\\[Thread debugging using \[^ \r\n\]* enabled\\\]\r\n" {
6407 -re
" is not a core dump:.*\r\n$gdb_prompt $" {
6408 fail
"$test (bad file format)"
6411 -re
-wrap
"[string_to_regexp $core]: No such file or directory.*" {
6412 fail
"$test (file not found)"
6415 -re
"Couldn't find .* registers in core file.*\r\n$gdb_prompt $" {
6416 fail
"$test (incomplete note section)"
6419 -re
"Core was generated by .*\r\n$gdb_prompt $" {
6423 -re
".*$gdb_prompt $" {
6428 fail
"$test (timeout)"
6432 fail
"unsupported output from 'core' command"
6436 #
Return the filename to download to the target and
load on the target
6437 #
for this shared library. Normally just LIBNAME
, unless shared libraries
6438 #
for this target have separate link and
load images.
6440 proc shlib_target_file
{ libname
} {
6444 #
Return the filename GDB will
load symbols from when debugging this
6445 # shared library. Normally just LIBNAME
, unless shared libraries
for
6446 # this target have separate link and
load images.
6448 proc shlib_symbol_file
{ libname
} {
6452 #
Return the filename to download to the target and
load for this
6453 # executable. Normally just BINFILE unless it is renamed to something
6454 #
else for this target.
6456 proc exec_target_file
{ binfile
} {
6460 #
Return the filename GDB will
load symbols from when debugging this
6461 # executable. Normally just BINFILE unless executables
for this target
6462 # have separate files
for symbols.
6464 proc exec_symbol_file
{ binfile
} {
6468 #
Rename the executable file. Normally this is just BINFILE1 being renamed
6469 # to BINFILE2
, but some targets require multiple binary files.
6470 proc gdb_rename_execfile
{ binfile1 binfile2
} {
6471 file
rename -force
[exec_target_file $
{binfile1
}] \
6472 [exec_target_file $
{binfile2
}]
6473 if { [exec_target_file $
{binfile1
}] != [exec_symbol_file $
{binfile1
}] } {
6474 file
rename -force
[exec_symbol_file $
{binfile1
}] \
6475 [exec_symbol_file $
{binfile2
}]
6479 #
"Touch" the executable file to update the date. Normally this is just
6480 # BINFILE
, but some targets require multiple files.
6481 proc gdb_touch_execfile
{ binfile
} {
6482 set time
[clock
seconds]
6483 file mtime
[exec_target_file $
{binfile
}] $time
6484 if { [exec_target_file $
{binfile
}] != [exec_symbol_file $
{binfile
}] } {
6485 file mtime
[exec_symbol_file $
{binfile
}] $time
6489 # Override of dejagnu
's remote_upload, which doesn't handle remotedir.
6491 rename remote_upload dejagnu_remote_upload
6492 proc remote_upload
{ dest srcfile
args } {
6493 if { [is_remote $dest
] && [board_info $dest
exists remotedir
] } {
6494 set remotedir
[board_info $dest remotedir
]
6495 if { ![string match
"$remotedir*" $srcfile] } {
6496 # Use hardcoded
'/' as separator
, as in dejagnu
's remote_download.
6497 set srcfile $remotedir/$srcfile
6501 return [dejagnu_remote_upload $dest $srcfile {*}$args]
6504 # Like remote_download but provides a gdb-specific behavior.
6506 # If the destination board is remote, the local file FROMFILE is transferred as
6507 # usual with remote_download to TOFILE on the remote board. The destination
6508 # filename is added to the CLEANFILES global, so it can be cleaned up at the
6511 # If the destination board is local, the destination path TOFILE is passed
6512 # through standard_output_file, and FROMFILE is copied there.
6514 # In both cases, if TOFILE is omitted, it defaults to the [file tail] of
6517 proc gdb_remote_download {dest fromfile {tofile {}}} {
6518 # If TOFILE is not given, default to the same filename as FROMFILE.
6519 if {[string length $tofile] == 0} {
6520 set tofile [file tail $fromfile]
6523 if {[is_remote $dest]} {
6524 # When the DEST is remote, we simply send the file to DEST.
6525 global cleanfiles_target cleanfiles_host
6527 set destname [remote_download $dest $fromfile $tofile]
6528 if { $dest == "target" } {
6529 lappend cleanfiles_target $destname
6530 } elseif { $dest == "host" } {
6531 lappend cleanfiles_host $destname
6536 # When the DEST is local, we copy the file to the test directory (where
6537 # the executable is).
6539 # Note that we pass TOFILE through standard_output_file, regardless of
6540 # whether it is absolute or relative, because we don't want the tests
6541 # to be able to write outside their standard output directory.
6543 set tofile
[standard_output_file $tofile
]
6545 file copy
-force $fromfile $tofile
6551 # Copy shlib FILE to the target.
6553 proc gdb_download_shlib
{ file
} {
6554 set target_file
[shlib_target_file $file
]
6555 if { [is_remote host
] } {
6556 remote_download host $target_file
6558 return [gdb_remote_download target $target_file
]
6561 #
Set solib
-search
-path to allow gdb to locate shlib FILE.
6563 proc gdb_locate_shlib
{ file
} {
6566 if ![info exists gdb_spawn_id
] {
6567 perror
"gdb_load_shlib: GDB is not running"
6570 if { [is_remote target
] ||
[is_remote host
] } {
6571 #
If the target or host is remote
, we need to tell gdb where to find
6577 # We could
set this even when not testing remotely
, but a user
6578 # generally won
't set it unless necessary. In order to make the tests
6579 # more like the real-life scenarios, we don't
set it
for local testing.
6580 if { [is_remote host
] } {
6581 set solib_search_path
[board_info host remotedir
]
6582 if { $solib_search_path
== "" } {
6583 set solib_search_path .
6586 set solib_search_path
[file dirname $file
]
6589 gdb_test_no_output
"set solib-search-path $solib_search_path" \
6590 "set solib-search-path for [file tail $file]"
6593 # Copy shlib FILE to the target and
set solib
-search
-path to allow gdb to
6596 proc gdb_load_shlib
{ file
} {
6597 set dest
[gdb_download_shlib $file
]
6598 gdb_locate_shlib $file
6603 # gdb_load
-- load a file into the debugger. Specifying no file
6604 # defaults to the executable currently being debugged.
6605 # The
return value is
0 for success
, -1 for failure.
6606 # Many files in config
/*.exp override this procedure.
6608 proc gdb_load
{ arg } {
6610 return [gdb_file_cmd $
arg]
6616 # with_set
-- Execute BODY and
set VAR temporary to VAL
for the
6619 proc with_set
{ var val body
} {
6622 "is (\[^\r\n\]+)\\."
6623 gdb_test_multiple
"show $var" "" {
6624 -re
-wrap $show_re
{
6625 set save $expect_out
(1,string
)
6629 # Handle
'set to "auto" (currently "i386")'.
6630 set save
[regsub
{^
set to
} $save
""]
6631 set save
[regsub
{\
([^
\r\n]+\
)$
} $save
""]
6632 set save
[string trim $save
]
6633 set save
[regsub
-all
{^
"|"$} $save ""]
6635 if { $save
== "" } {
6636 perror
"Did not manage to set $var"
6639 gdb_test_multiple
"set $var $val" "" {
6642 -re
-wrap
" is set to \"?$val\"?\\." {
6647 set code
[catch
{uplevel
1 $body
} result
]
6649 # Restore saved setting.
6650 if { $save
!= "" } {
6651 gdb_test_multiple
"set $var $save" "" {
6654 -re
-wrap
"is set to \"?$save\"?( \\(\[^)\]*\\))?\\." {
6660 global errorInfo errorCode
6661 return -code $code
-errorinfo $errorInfo
-errorcode $errorCode $result
6663 return -code $code $result
6668 # with_complaints
-- Execute BODY and
set complaints temporary to N
for the
6671 proc with_complaints
{ n body
} {
6672 return [uplevel
[list with_set complaints $n $body
]]
6676 # gdb_load_no_complaints
-- As gdb_load
, but in addition verifies that
6677 # loading caused no symbol reading complaints.
6679 proc gdb_load_no_complaints
{ arg } {
6680 global gdb_prompt gdb_file_cmd_msg decimal
6682 # Temporarily
set complaint to a small non
-zero number.
6687 # Verify that there were no complaints.
6690 "^(Reading symbols from \[^\r\n\]*" \
6691 ")+(Expanding full symbols from \[^\r\n\]*" \
6693 gdb_assert
{[regexp $re $gdb_file_cmd_msg
]} "No complaints"
6696 # gdb_reload
-- load a file into the target. Called before
"running",
6697 # either the first time or after already starting the
program once
,
6698 #
for remote targets. Most files that override gdb_load should now
6699 # override this instead.
6701 # INFERIOR_ARGS contains the arguments to pass to the inferiors
, as a
6702 # single string to
get interpreted by a
shell.
If the target board
6703 # overriding gdb_reload is a
"stub", then it should arrange things such
6704 # these arguments make their way to the inferior process.
6706 proc gdb_reload
{ {inferior_args
{}} } {
6707 #
For the benefit of existing configurations
, default to gdb_load.
6708 # Specifying no file defaults to the executable currently being
6710 return [gdb_load
""]
6713 proc gdb_continue
{ function
} {
6716 return [gdb_test
"continue" ".*Breakpoint $decimal, $function .*" "continue to $function"]
6719 # Clean the directory containing the standard output files.
6721 proc clean_standard_output_dir
{} {
6722 if { [info exists ::GDB_PERFTEST_MODE
] && $
::GDB_PERFTEST_MODE
== "run" } {
6723 # Don
't clean, use $GDB_PERFTEST_MODE == compile results.
6727 # Directory containing the standard output files.
6728 set standard_output_dir [file normalize [standard_output_file ""]]
6730 # Ensure that standard_output_dir is clean, or only contains
6731 # gdb.log / gdb.sum.
6732 set log_file_info [split [log_file -info]]
6733 set log_file [file normalize [lindex $log_file_info end]]
6734 if { $log_file == [file normalize [standard_output_file gdb.log]] } {
6735 # Dir already contains active gdb.log. Don't remove the
dir, but
6736 # check that it
's clean otherwise.
6737 set res [glob -directory $standard_output_dir -tails *]
6740 if { $f == "gdb.log" } {
6743 if { $f == "gdb.sum" } {
6749 error "standard output dir not clean"
6752 # Start with a clean dir.
6753 remote_exec build "rm -rf $standard_output_dir"
6758 # Default implementation of gdb_init.
6759 proc default_gdb_init { test_file_name } {
6760 global gdb_wrapper_initialized
6761 global gdb_wrapper_target
6762 global gdb_test_file_name
6763 global cleanfiles_target
6764 global cleanfiles_host
6767 # Reset the timeout value to the default. This way, any testcase
6768 # that changes the timeout value without resetting it cannot affect
6769 # the timeout used in subsequent testcases.
6770 global gdb_test_timeout
6772 set timeout $gdb_test_timeout
6774 if { [regexp ".*gdb\.reverse\/.*" $test_file_name]
6775 && [target_info exists gdb_reverse_timeout] } {
6776 set timeout [target_info gdb_reverse_timeout]
6779 # If GDB_INOTIFY is given, check for writes to '.
'. This is a
6780 # debugging tool to help confirm that the test suite is
6781 # parallel-safe. You need "inotifywait" from the
6782 # inotify-tools package to use this.
6783 global GDB_INOTIFY inotify_pid
6784 if {[info exists GDB_INOTIFY] && ![info exists inotify_pid]} {
6785 global outdir tool inotify_log_file
6787 set exclusions {outputs temp gdb[.](log|sum) cache}
6788 set exclusion_re ([join $exclusions |])
6790 set inotify_log_file [standard_temp_file inotify.out]
6791 set inotify_pid [exec inotifywait -r -m -e move,create,delete . \
6792 --exclude $exclusion_re \
6793 |& tee -a $outdir/$tool.log $inotify_log_file &]
6795 # Wait for the watches; hopefully this is long enough.
6798 # Clear the log so that we don't emit a warning the first time
6800 set fd
[open $inotify_log_file w
]
6804 # Block writes to all banned variables
, and invocation of all
6805 # banned procedures...
6806 global banned_variables
6807 global banned_procedures
6808 global banned_traced
6809 if (!$banned_traced
) {
6810 foreach banned_var $banned_variables
{
6811 global
"$banned_var"
6812 trace add
variable "$banned_var" write error
6814 foreach banned_proc $banned_procedures
{
6815 global
"$banned_proc"
6816 trace add execution
"$banned_proc" enter error
6821 # We
set LC_ALL
, LC_CTYPE
, and LANG to C so that we
get the same
6822 # messages as expected.
6827 # Don
't let a .inputrc file or an existing setting of INPUTRC mess
6828 # up the test results. Certain tests (style tests and TUI tests)
6829 # want to set the terminal to a non-"dumb" value, and for those we
6830 # want to disable bracketed paste mode. Versions of Readline
6831 # before 8.0 will not understand this and will issue a warning.
6832 # We tried using a $if to guard it, but Readline 8.1 had a bug in
6833 # its version-comparison code that prevented this for working.
6834 setenv INPUTRC [cached_file inputrc "set enable-bracketed-paste off"]
6836 # This disables style output, which would interfere with many
6838 setenv NO_COLOR sorry
6840 # This setting helps detect bugs in the Python code and doesn't
6841 # seem to have a significant downside
for the tests.
6842 setenv PYTHONMALLOC malloc_debug
6844 #
If DEBUGINFOD_URLS is
set, gdb will try to download sources and
6845 # debug
info for f.i.
system libraries. Prevent this.
6846 if { [is_remote host
] } {
6847 # See initialization of INTERNAL_GDBFLAGS.
6849 # Using
"set debuginfod enabled off" in INTERNAL_GDBFLAGS interferes
6850 # with the gdb.debuginfod test
-cases
, so use the unsetenv method
for
6852 unset
-nocomplain
::env
(DEBUGINFOD_URLS
)
6855 # Ensure that GDBHISTFILE and GDBHISTSIZE are removed from the
6856 # environment
, we don
't want these modifications to the history
6858 unset -nocomplain ::env(GDBHISTFILE)
6859 unset -nocomplain ::env(GDBHISTSIZE)
6861 # Ensure that XDG_CONFIG_HOME is not set. Some tests setup a fake
6862 # home directory in order to test loading settings from gdbinit.
6863 # If XDG_CONFIG_HOME is set then GDB will load a gdbinit from
6864 # there (if one is present) rather than the home directory setup
6866 unset -nocomplain ::env(XDG_CONFIG_HOME)
6868 # Initialize GDB's pty with a fixed size
, to make sure we avoid pagination
6869 # during startup. See
"man expect" for details about stty_init.
6871 set stty_init
"rows 25 cols 80"
6873 # Some tests
(for example gdb.base
/maint.exp
) shell out from gdb to use
6874 # grep. Clear GREP_OPTIONS to make the behavior predictable
,
6875 # especially having color output turned
on can cause tests to fail.
6876 setenv GREP_OPTIONS
""
6878 # Clear $gdbserver_reconnect_p.
6879 global gdbserver_reconnect_p
6880 set gdbserver_reconnect_p
1
6881 unset gdbserver_reconnect_p
6883 # Clear $last_loaded_file
6884 global last_loaded_file
6885 unset
-nocomplain last_loaded_file
6887 # Reset GDB number of instances
6888 global gdb_instances
6891 set cleanfiles_target
{}
6892 set cleanfiles_host
{}
6894 set gdb_test_file_name
[file rootname
[file tail $test_file_name
]]
6896 clean_standard_output_dir
6898 # Make sure that the wrapper is rebuilt
6899 # with the appropriate multilib option.
6900 if { $gdb_wrapper_target
!= [current_target_name
] } {
6901 set gdb_wrapper_initialized
0
6904 # Unlike most tests
, we have a small number of tests that generate
6905 # a very large amount of output. We therefore increase the expect
6906 # buffer size to be able to contain the entire test output. This
6907 # is especially needed by gdb.base
/info-macros.exp.
6909 # Also
set this value
for the currently running GDB.
6910 match_max
[match_max
-d
]
6912 # We want to add the
name of the TCL testcase to the PASS
/FAIL messages.
6913 set pf_prefix
"[file tail [file dirname $test_file_name]]/[file tail $test_file_name]:"
6916 if [target_info
exists gdb_prompt
] {
6917 set gdb_prompt
[target_info gdb_prompt
]
6919 set gdb_prompt
"\\(gdb\\)"
6922 if [info exists use_gdb_stub
] {
6926 gdb_setup_known_globals
6928 if { [info procs
::gdb_tcl_unknown
] != "" } {
6929 # Dejagnu overrides proc unknown. The dejagnu version may trigger in a
6930 # test
-case but abort the entire test run. To fix this
, we install a
6931 # local version here
, which reverts dejagnu
's override, and restore
6932 # dejagnu's version in gdb_finish.
6933 rename ::unknown
::dejagnu_unknown
6934 proc unknown
{ args } {
6935 # Use tcl
's unknown.
6936 set cmd [lindex $args 0]
6937 unresolved "testcase aborted due to invalid command name: $cmd"
6938 return [uplevel 1 ::gdb_tcl_unknown $args]
6942 # Dejagnu version 1.6.3 and later produce an unresolved at the end of a
6943 # testcase if an error triggered, resetting errcnt and warncnt to 0, in
6944 # order to avoid errors in one test-case influencing the following
6945 # test-case. Do this manually here, to support older versions.
6952 # Return a path using GDB_PARALLEL.
6953 # ARGS is a list of path elements to append to "$objdir/$GDB_PARALLEL".
6954 # GDB_PARALLEL must be defined, the caller must check.
6956 # The default value for GDB_PARALLEL is, canonically, ".".
6957 # The catch is that tests don't expect an additional
"./" in file paths so
6958 # omit
any directory
for the default case.
6959 # GDB_PARALLEL is written as
"yes" for the default case in Makefile.in to mark
6960 # its special handling.
6962 proc make_gdb_parallel_path
{ args } {
6963 global GDB_PARALLEL objdir
6964 set joiner
[list
"file" "join" $objdir]
6965 if { [info exists GDB_PARALLEL
] && $GDB_PARALLEL
!= "yes" } {
6966 lappend joiner $GDB_PARALLEL
6968 set joiner
[concat $joiner $
args]
6969 return [eval $joiner
]
6972 # Turn BASENAME into a full file
name in the standard output
6973 # directory. It is ok
if BASENAME is the empty string
; in this case
6974 # the directory is returned.
6976 proc standard_output_file
{basename
} {
6977 global objdir subdir gdb_test_file_name
6979 set dir [make_gdb_parallel_path outputs $subdir $gdb_test_file_name
]
6981 #
If running
on MinGW
, replace
/c
/foo with c
:/foo
6982 if { [ishost
*-*-mingw
*] } {
6983 set dir [exec sh
-c
"cd ${dir} && pwd -W"]
6985 return [file join $
dir $basename
]
6988 # Turn BASENAME into a file
name on host.
6990 proc host_standard_output_file
{ basename
} {
6991 if { [is_remote host
] } {
6992 set remotedir
[board_info host remotedir
]
6993 if { $remotedir
== "" } {
6994 if { $basename
== "" } {
6999 return [join
[list $remotedir $basename
] "/"]
7002 return [standard_output_file $basename
]
7006 # Turn BASENAME into a full file
name in the standard output directory.
If
7007 # GDB has been launched more than once
then append the
count, starting with
7010 proc standard_output_file_with_gdb_instance
{basename
} {
7011 global gdb_instances
7012 set count $gdb_instances
7015 return [standard_output_file $basename
]
7017 return [standard_output_file $
{basename
}.$
{count}]
7020 #
Return the
name of a file in our standard temporary directory.
7022 proc standard_temp_file
{basename
} {
7023 # Since a particular runtest invocation is only executing a single test
7024 # file at
any given time
, we can use the runtest pid to build the
7025 # path of the temp directory.
7026 set dir [make_gdb_parallel_path temp
[pid
]]
7028 return [file join $
dir $basename
]
7031 #
Rename file A to file B
, if B does not already
exists. Otherwise
, leave B
7032 # as is and
delete A.
Return 1 if rename happened.
7034 proc tentative_rename
{ a b
} {
7035 global errorInfo errorCode
7036 set code
[catch
{file
rename -- $a $b
} result
]
7037 if { $code
== 1 && [lindex $errorCode
0] == "POSIX" \
7038 && [lindex $errorCode
1] == "EEXIST" } {
7043 return -code error
-errorinfo $errorInfo
-errorcode $errorCode $result
7044 } elseif
{$code
> 1} {
7045 return -code $code $result
7050 # Create a file with
name FILENAME and contents TXT in the
cache directory.
7051 #
If EXECUTABLE
, mark the new file
for execution.
7053 proc cached_file
{ filename txt
{executable
0}} {
7054 set filename
[make_gdb_parallel_path
cache $filename
]
7056 if { [file
exists $filename
] } {
7060 set dir [file dirname $filename
]
7063 set tmp_filename $filename.
[pid
]
7064 set fd
[open $tmp_filename w
]
7068 if { $executable
} {
7069 exec chmod
+x $tmp_filename
7071 tentative_rename $tmp_filename $filename
7076 #
Return a wrapper around gdb that prevents generating a core file.
7078 proc gdb_no_core
{ } {
7082 [join
[list exec $
::GDB
{"$@"}]]]
7083 set script
[join $script
"\n"]
7084 return [cached_file gdb
-no
-core.sh $script
1]
7087 #
Set 'testfile', 'srcfile', and
'binfile'.
7089 #
ARGS is a list of source file specifications.
7090 # Without
any arguments
, the .exp file
's base name is used to
7091 # compute the source file name. The ".c" extension is added in this case.
7092 # If ARGS is not empty, each entry is a source file specification.
7093 # If the specification starts with a "." or "-", it is treated as a suffix
7094 # to append to the .exp file's base
name.
7095 #
If the specification is the empty string
, it is treated as
if it
7097 # Otherwise it is a file
name.
7098 # The first file in the list is used to
set the
'srcfile' global.
7099 # Each subsequent
name is used to
set 'srcfile2', 'srcfile3', etc.
7101 # Most tests should
call this without arguments.
7103 #
If a completely different binary file
name is needed
, then it
7104 # should be handled in the .exp file with a suitable comment.
7106 proc standard_testfile
{args} {
7107 global gdb_test_file_name
7109 global gdb_test_file_last_vars
7112 global testfile binfile
7114 set testfile $gdb_test_file_name
7115 set binfile
[standard_output_file $
{testfile
}]
7117 if {[llength $
args] == 0} {
7121 # Unset our previous output variables.
7122 # This can help catch hidden bugs.
7123 if {[info exists gdb_test_file_last_vars
]} {
7124 foreach varname $gdb_test_file_last_vars
{
7126 catch
{unset $varname
}
7129 #
'executable' is often
set by tests.
7130 set gdb_test_file_last_vars
{executable
}
7134 set varname srcfile$suffix
7137 # Handle an extension.
7141 set first
[string range $
arg 0 0]
7142 if { $first
== "." || $first == "-" } {
7143 set arg $testfile$
arg
7148 lappend gdb_test_file_last_vars $varname
7150 if {$suffix
== ""} {
7158 # The default timeout used when testing GDB commands. We want to use
7159 # the same timeout as the default dejagnu timeout
, unless the user has
7160 # already provided a specific value
(probably through a site.exp file
).
7161 global gdb_test_timeout
7162 if ![info exists gdb_test_timeout
] {
7163 set gdb_test_timeout $timeout
7166 # A list of global variables that GDB testcases should not use.
7167 # We try to prevent their use by monitoring write accesses and raising
7168 # an error when that happens.
7169 set banned_variables
{ bug_id prms_id
}
7171 # A list of procedures that GDB testcases should not use.
7172 # We try to prevent their use by monitoring invocations and raising
7173 # an error when that happens.
7174 set banned_procedures
{ strace
}
7176 # gdb_init is called by runtest at start
, but also by several
7177 # tests directly
; gdb_finish is only called from within runtest after
7178 # each test source execution.
7179 # Placing several traces by repetitive calls to gdb_init leads
7180 # to problems
, as only one
trace is removed in gdb_finish.
7181 # To overcome this possible problem
, we add a
variable that records
7182 #
if the banned variables and procedures are already traced.
7185 # Global array that holds the
name of all global variables at the time
7186 # a test script is started. After the test script has completed
any
7187 # global not in this list is deleted.
7188 array
set gdb_known_globals
{}
7190 # Setup the GDB_KNOWN_GLOBALS array with the names of all current
7192 proc gdb_setup_known_globals
{} {
7193 global gdb_known_globals
7195 array
set gdb_known_globals
{}
7196 foreach varname
[info globals
] {
7197 set gdb_known_globals
($varname
) 1
7201 # Cleanup the global namespace.
Any global not in the
7202 # GDB_KNOWN_GLOBALS array is unset
, this ensures we don
't "leak"
7203 # globals from one test script to another.
7204 proc gdb_cleanup_globals {} {
7205 global gdb_known_globals gdb_persistent_globals
7207 foreach varname [info globals] {
7208 if {![info exists gdb_known_globals($varname)]} {
7209 if { [info exists gdb_persistent_globals($varname)] } {
7212 uplevel #0 unset $varname
7217 # Create gdb_tcl_unknown, a copy tcl's
::unknown
, provided it
's present as a
7219 set temp [interp create]
7220 if { [interp eval $temp "info procs ::unknown"] != "" } {
7221 set old_args [interp eval $temp "info args ::unknown"]
7222 set old_body [interp eval $temp "info body ::unknown"]
7223 eval proc gdb_tcl_unknown {$old_args} {$old_body}
7228 # GDB implementation of ${tool}_init. Called right before executing the
7230 # Overridable function -- you can override this function in your
7232 proc gdb_init { args } {
7233 # A baseboard file overriding this proc and calling the default version
7234 # should behave the same as this proc. So, don't add code here
, but to
7235 # the default version instead.
7236 return [default_gdb_init
{*}$
args]
7239 # GDB implementation of $
{tool
}_finish. Called right after executing the
7241 proc gdb_finish
{ } {
7242 global gdbserver_reconnect_p
7244 global cleanfiles_target
7245 global cleanfiles_host
7246 global known_globals
7248 if { [info procs
::gdb_tcl_unknown
] != "" } {
7249 # Restore dejagnu
's version of proc unknown.
7251 rename ::dejagnu_unknown ::unknown
7254 # Exit first, so that the files are no longer in use.
7257 if { [llength $cleanfiles_target] > 0 } {
7258 eval remote_file target delete $cleanfiles_target
7259 set cleanfiles_target {}
7261 if { [llength $cleanfiles_host] > 0 } {
7262 eval remote_file host delete $cleanfiles_host
7263 set cleanfiles_host {}
7266 # Unblock write access to the banned variables. Dejagnu typically
7267 # resets some of them between testcases.
7268 global banned_variables
7269 global banned_procedures
7270 global banned_traced
7271 if ($banned_traced) {
7272 foreach banned_var $banned_variables {
7273 global "$banned_var"
7274 trace remove variable "$banned_var" write error
7276 foreach banned_proc $banned_procedures {
7277 global "$banned_proc"
7278 trace remove execution "$banned_proc" enter error
7283 global gdb_finish_hooks
7284 foreach gdb_finish_hook $gdb_finish_hooks {
7287 set gdb_finish_hooks [list]
7293 set debug_format "unknown"
7295 # Run the gdb command "info source" and extract the debugging format
7296 # information from the output and save it in debug_format.
7298 proc get_debug_format { } {
7303 set debug_format "unknown"
7304 send_gdb "info source\n"
7306 -re "Compiled with (.*) debugging format.\r\n.*$gdb_prompt $" {
7307 set debug_format $expect_out(1,string)
7308 verbose "debug format is $debug_format"
7311 -re "No current source file.\r\n$gdb_prompt $" {
7312 perror "get_debug_format used when no current source file"
7315 -re "$gdb_prompt $" {
7316 warning "couldn't check debug format
(no valid response
).
"
7320 warning
"couldn't check debug format (timeout)."
7326 #
Return true
if FORMAT matches the debug format the current test was
7327 # compiled with. FORMAT is a
shell-style globbing pattern
; it can use
7328 # `
*', `[...]', and so
on.
7330 # This function depends
on variables
set by `get_debug_format
', above.
7332 proc test_debug_format {format} {
7335 return [expr [string match $format $debug_format] != 0]
7338 # Like setup_xfail, but takes the name of a debug format (DWARF 1,
7339 # COFF, stabs, etc). If that format matches the format that the
7340 # current test was compiled with, then the next test is expected to
7341 # fail for any target. Returns 1 if the next test or set of tests is
7342 # expected to fail, 0 otherwise (or if it is unknown). Must have
7343 # previously called get_debug_format.
7344 proc setup_xfail_format { format } {
7345 set ret [test_debug_format $format]
7353 # gdb_get_line_number TEXT [FILE]
7355 # Search the source file FILE, and return the line number of the
7356 # first line containing TEXT. If no match is found, an error is thrown.
7358 # TEXT is a string literal, not a regular expression.
7360 # The default value of FILE is "$srcdir/$subdir/$srcfile". If FILE is
7361 # specified, and does not start with "/", then it is assumed to be in
7362 # "$srcdir/$subdir". This is awkward, and can be fixed in the future,
7363 # by changing the callers and the interface at the same time.
7364 # In particular: gdb.base/break.exp, gdb.base/condbreak.exp,
7365 # gdb.base/ena-dis-br.exp.
7367 # Use this function to keep your test scripts independent of the
7368 # exact line numbering of the source file. Don't write
:
7370 # send_gdb
"break 20"
7372 # This means that
if anyone ever edits your test
's source file,
7373 # your test could break. Instead, put a comment like this on the
7374 # source file line you want to break at:
7376 # /* breakpoint spot: frotz.exp: test name */
7378 # and then write, in your test script (which we assume is named
7381 # send_gdb "break [gdb_get_line_number "frotz.exp: test name"]\n"
7383 # (Yes, Tcl knows how to handle the nested quotes and brackets.
7386 # % puts "foo [lindex "bar baz" 1]"
7389 # Tcl is quite clever, for a little stringy language.)
7393 # The previous implementation of this procedure used the gdb search command.
7394 # This version is different:
7396 # . It works with MI, and it also works when gdb is not running.
7398 # . It operates on the build machine, not the host machine.
7400 # . For now, this implementation fakes a current directory of
7401 # $srcdir/$subdir to be compatible with the old implementation.
7402 # This will go away eventually and some callers will need to
7405 # . The TEXT argument is literal text and matches literally,
7406 # not a regular expression as it was before.
7408 # . State changes in gdb, such as changing the current file
7409 # and setting $_, no longer happen.
7411 # After a bit of time we can forget about the differences from the
7412 # old implementation.
7414 # --chastain 2004-08-05
7416 proc gdb_get_line_number { text { file "" } } {
7421 if {"$file" == ""} {
7424 if {![regexp "^/" "$file"]} {
7425 set file "$srcdir/$subdir/$file"
7428 if {[catch { set fd [open "$file"] } message]} {
7433 for { set line 1 } { 1 } { incr line } {
7434 if {[catch { set nchar [gets "$fd" body] } message]} {
7440 if {[string first "$text" "$body"] >= 0} {
7446 if {[catch { close "$fd" } message]} {
7451 error "undefined tag \"$text\""
7457 # Continue the program until it ends.
7459 # MSSG is the error message that gets printed. If not given, a
7461 # COMMAND is the command to invoke. If not given, "continue" is
7463 # ALLOW_EXTRA is a flag indicating whether the test should expect
7464 # extra output between the "Continuing." line and the program
7465 # exiting. By default it is zero; if nonzero, any extra output
7468 proc gdb_continue_to_end {{mssg ""} {command continue} {allow_extra 0}} {
7469 global inferior_exited_re use_gdb_stub
7472 set text "continue until exit"
7474 set text "continue until exit at $mssg"
7482 # By default, we don't rely
on exit
() behavior of remote stubs
--
7483 # it
's common for exit() to be implemented as a simple infinite
7484 # loop, or a forced crash/reset. For native targets, by default, we
7485 # assume process exit is reported as such. If a non-reliable target
7486 # is used, we set a breakpoint at exit, and continue to that.
7487 if { [target_info exists exit_is_reliable] } {
7488 set exit_is_reliable [target_info exit_is_reliable]
7490 set exit_is_reliable [expr ! $use_gdb_stub]
7493 if { ! $exit_is_reliable } {
7494 if {![gdb_breakpoint "exit"]} {
7497 gdb_test $command "Continuing..*Breakpoint .*exit.*" \
7500 # Continue until we exit. Should not stop again.
7501 # Don't bother to check the output of the
program, that may be
7502 # extremely tough
for some remote systems.
7504 "Continuing.\[\r\n0-9\]+${extra}(... EXIT code 0\[\r\n\]+|$inferior_exited_re normally).*"\
7509 proc rerun_to_main
{} {
7510 global gdb_prompt use_gdb_stub
7515 -re
".*Breakpoint .*main .*$gdb_prompt $"\
7516 {pass
"rerun to main" ; return 0}
7517 -re
"$gdb_prompt $"\
7518 {fail
"rerun to main" ; return 0}
7519 timeout
{fail
"(timeout) rerun to main" ; return 0}
7524 -re
"The program .* has been started already.*y or n. $" {
7525 send_gdb
"y\n" answer
7528 -re
"Starting program.*$gdb_prompt $"\
7529 {pass
"rerun to main" ; return 0}
7530 -re
"$gdb_prompt $"\
7531 {fail
"rerun to main" ; return 0}
7532 timeout
{fail
"(timeout) rerun to main" ; return 0}
7537 #
Return true
if EXECUTABLE contains a .gdb_index or .debug_names index section.
7539 proc exec_has_index_section
{ executable
} {
7540 set readelf_program
[gdb_find_readelf
]
7541 set res
[catch
{exec $readelf_program
-S $executable \
7542 | grep
-E
"\.gdb_index|\.debug_names" }]
7549 #
Return list with major and minor version of readelf
, or an empty list.
7550 gdb_caching_proc readelf_version
{} {
7551 set readelf_program
[gdb_find_readelf
]
7552 set res
[catch
{exec $readelf_program
--version
} output
]
7556 set lines
[split $output
\n]
7557 set line
[lindex $lines
0]
7558 set res
[regexp
{[ \t]+([0-9]+)[.
]([0-9]+)[^
\t]*$
} \
7559 $line dummy major minor
]
7563 return [list $major $minor
]
7566 #
Return 1 if readelf prints the PIE flag
, 0 if is doesn
't, and -1 if unknown.
7567 proc readelf_prints_pie { } {
7568 set version [readelf_version]
7569 if { [llength $version] == 0 } {
7572 set major [lindex $version 0]
7573 set minor [lindex $version 1]
7574 # It would be better to construct a PIE executable and test if the PIE
7575 # flag is printed by readelf, but we cannot reliably construct a PIE
7576 # executable if the multilib_flags dictate otherwise
7577 # (--target_board=unix/-no-pie/-fno-PIE).
7578 return [version_compare {2 26} <= [list $major $minor]]
7581 # Return 1 if EXECUTABLE is a Position Independent Executable, 0 if it is not,
7582 # and -1 if unknown.
7584 proc exec_is_pie { executable } {
7585 set res [readelf_prints_pie]
7589 set readelf_program [gdb_find_readelf]
7590 # We're not testing readelf
-d | grep
"FLAGS_1.*Flags:.*PIE"
7591 # because the PIE flag is not
set by all versions of gold
, see PR
7593 set res
[catch
{exec $readelf_program
-h $executable
} output
]
7597 set res
[regexp
-line
{^
[ \t]*Type
:[ \t]*DYN \
((Position
-Independent Executable|Shared object
) file\
)$
} \
7605 #
Return false
if a test should be skipped due to lack of floating
7606 # point support or GDB can
't fetch the contents from floating point
7609 gdb_caching_proc allow_float_test {} {
7610 if [target_info exists gdb,skip_float_tests] {
7614 # There is an ARM kernel ptrace bug that hardware VFP registers
7615 # are not updated after GDB ptrace set VFP registers. The bug
7616 # was introduced by kernel commit 8130b9d7b9d858aa04ce67805e8951e3cb6e9b2f
7617 # in 2012 and is fixed in e2dfb4b880146bfd4b6aa8e138c0205407cebbaf
7618 # in May 2016. In other words, kernels older than 4.6.3, 4.4.14,
7619 # 4.1.27, 3.18.36, and 3.14.73 have this bug.
7620 # This kernel bug is detected by check how does GDB change the
7621 # program result by changing one VFP register.
7622 if { [istarget "arm*-*-linux*"] } {
7624 set compile_flags {debug nowarnings }
7626 # Set up, compile, and execute a test program having VFP
7628 set src [standard_temp_file arm_vfp.c]
7629 set exe [standard_temp_file arm_vfp.x]
7631 gdb_produce_source $src {
7636 asm ("vldr d0, [%0]" : : "r" (&d));
7637 asm ("vldr d1, [%0]" : : "r" (&d));
7638 asm (".global break_here\n"
7640 asm ("vcmp.f64 d0, d1\n"
7641 "vmrs APSR_nzcv, fpscr\n"
7642 "bne L_value_different\n"
7645 "L_value_different:\n"
7647 "L_end:\n" : "=r" (ret) :);
7649 /* Return $d0 != $d1. */
7654 verbose "compiling testfile $src" 2
7655 set lines [gdb_compile $src $exe executable $compile_flags]
7658 if {![string match "" $lines]} {
7659 verbose "testfile compilation failed, returning 1" 2
7663 # No error message, compilation succeeded so now run it via gdb.
7664 # Run the test up to 5 times to detect whether ptrace can
7665 # correctly update VFP registers or not.
7666 set allow_vfp_test 1
7667 for {set i 0} {$i < 5} {incr i} {
7668 global gdb_prompt srcdir subdir
7672 gdb_reinitialize_dir $srcdir/$subdir
7676 gdb_test "break *break_here"
7677 gdb_continue_to_breakpoint "break_here"
7679 # Modify $d0 to a different value, so the exit code should
7681 gdb_test "set \$d0 = 5.0"
7683 set test "continue to exit"
7684 gdb_test_multiple "continue" "$test" {
7685 -re "exited with code 01.*$gdb_prompt $" {
7687 -re "exited normally.*$gdb_prompt $" {
7688 # However, the exit code is 0. That means something
7689 # wrong in setting VFP registers.
7690 set allow_vfp_test 0
7697 remote_file build delete $exe
7699 return $allow_vfp_test
7704 # Print a message and return true if a test should be skipped
7705 # due to lack of stdio support.
7707 proc gdb_skip_stdio_test { msg } {
7708 if [target_info exists gdb,noinferiorio] {
7709 verbose "Skipping test '$msg
': no inferior i/o."
7715 proc gdb_skip_bogus_test { msg } {
7719 # Return true if XML support is enabled in the host GDB.
7720 # NOTE: This must be called while gdb is *not* running.
7722 gdb_caching_proc allow_xml_test {} {
7727 if { [info exists gdb_spawn_id] } {
7728 error "GDB must not be running in allow_xml_tests."
7731 set xml_file [gdb_remote_download host "${srcdir}/gdb.xml/trivial.xml"]
7735 gdb_test_multiple "set tdesc filename $xml_file" "" {
7736 -re ".*XML support was disabled at compile time.*$gdb_prompt $" {
7739 -re ".*$gdb_prompt $" { }
7742 return [expr {!$xml_missing}]
7745 # Return true if argv[0] is available.
7747 gdb_caching_proc gdb_has_argv0 {} {
7750 # Compile and execute a test program to check whether argv[0] is available.
7751 gdb_simple_compile has_argv0 {
7752 int main (int argc, char **argv) {
7759 proc gdb_has_argv0_1 { exe } {
7760 global srcdir subdir
7761 global gdb_prompt hex
7765 gdb_reinitialize_dir $srcdir/$subdir
7768 # Set breakpoint on main.
7769 gdb_test_multiple "break -q main" "break -q main" {
7770 -re "Breakpoint.*${gdb_prompt} $" {
7772 -re "${gdb_prompt} $" {
7779 gdb_test_multiple "" "run to main" {
7780 -re "Breakpoint.*${gdb_prompt} $" {
7782 -re "${gdb_prompt} $" {
7787 set old_elements "200"
7788 set test "show print elements"
7789 gdb_test_multiple $test $test {
7790 -re "Limit on string chars or array elements to print is (\[^\r\n\]+)\\.\r\n$gdb_prompt $" {
7791 set old_elements $expect_out(1,string)
7794 set old_repeats "200"
7795 set test "show print repeats"
7796 gdb_test_multiple $test $test {
7797 -re "Threshold for repeated print elements is (\[^\r\n\]+)\\.\r\n$gdb_prompt $" {
7798 set old_repeats $expect_out(1,string)
7801 gdb_test_no_output "set print elements unlimited" ""
7802 gdb_test_no_output "set print repeats unlimited" ""
7805 # Check whether argc is 1.
7806 gdb_test_multiple "p argc" "p argc" {
7807 -re " = 1\r\n${gdb_prompt} $" {
7809 gdb_test_multiple "p argv\[0\]" "p argv\[0\]" {
7810 -re " = $hex \".*[file tail $exe]\"\r\n${gdb_prompt} $" {
7813 -re "${gdb_prompt} $" {
7817 -re "${gdb_prompt} $" {
7821 gdb_test_no_output "set print elements $old_elements" ""
7822 gdb_test_no_output "set print repeats $old_repeats" ""
7827 set result [gdb_has_argv0_1 $obj]
7833 && ([istarget *-*-linux*]
7834 || [istarget *-*-freebsd*] || [istarget *-*-kfreebsd*]
7835 || [istarget *-*-netbsd*] || [istarget *-*-knetbsd*]
7836 || [istarget *-*-openbsd*]
7837 || [istarget *-*-darwin*]
7838 || [istarget *-*-solaris*]
7839 || [istarget *-*-aix*]
7840 || [istarget *-*-gnu*]
7841 || [istarget *-*-cygwin*] || [istarget *-*-mingw32*]
7842 || [istarget *-*-*djgpp*] || [istarget *-*-go32*]
7843 || [istarget *-wince-pe] || [istarget *-*-mingw32ce*]
7844 || [istarget *-*-osf*]
7845 || [istarget *-*-dicos*]
7846 || [istarget *-*-nto*]
7847 || [istarget *-*-*vms*]
7848 || [istarget *-*-lynx*178]) } {
7849 fail "argv\[0\] should be available on this target"
7855 # Note: the procedure gdb_gnu_strip_debug will produce an executable called
7856 # ${binfile}.dbglnk, which is just like the executable ($binfile) but without
7857 # the debuginfo. Instead $binfile has a .gnu_debuglink section which contains
7858 # the name of a debuginfo only file. This file will be stored in the same
7861 # Functions for separate debug info testing
7863 # starting with an executable:
7864 # foo --> original executable
7866 # at the end of the process we have:
7867 # foo.stripped --> foo w/o debug info
7868 # foo.debug --> foo's debug
info
7869 # foo
--> like foo
, but with a new .gnu_debuglink section pointing to foo.debug.
7871 #
Fetch the build id from the file.
7872 # Returns
"" if there is none.
7874 proc get_build_id
{ filename
} {
7875 if { ([istarget
"*-*-mingw*"]
7876 ||
[istarget
*-*-cygwin
*]) } {
7877 set objdump_program
[gdb_find_objdump
]
7878 set result
[catch
{set data
[exec $objdump_program
-p $filename | grep signature | cut
"-d " -f4]} output]
7879 verbose
"result is $result"
7880 verbose
"output is $output"
7886 set tmp
[standard_output_file
"${filename}-tmp"]
7887 set objcopy_program
[gdb_find_objcopy
]
7888 set result
[catch
"exec $objcopy_program -j .note.gnu.build-id -O binary $filename $tmp" output]
7889 verbose
"result is $result"
7890 verbose
"output is $output"
7895 fconfigure $fi
-translation binary
7896 # Skip the NOTE header.
7901 if {![string compare $data
""]} {
7904 #
Convert it to hex.
7905 binary scan $data H
* data
7910 #
Return the build
-id hex string
(usually
160 bits as
40 hex characters
)
7911 # converted to the form
: .build
-id
/ab
/cdef1234..
.89.debug
7912 #
Return "" if no build-id found.
7913 proc build_id_debug_filename_get
{ filename
} {
7914 set data
[get_build_id $filename
]
7915 if { $data
== "" } {
7918 regsub
{^..
} $data
{\
0/} data
7919 return ".build-id/${data}.debug"
7922 # DEST should be a file compiled with debug information. This proc
7923 # creates two new files DEST.debug which contains the debug
7924 # information extracted from DEST
, and DEST.stripped
, which is a copy
7925 # of DEST with the debug information removed. A
'.gnu_debuglink'
7926 # section will be added to DEST.stripped that points to DEST.debug.
7928 #
If ARGS is passed
, it is a list of optional flags. The currently
7929 # supported flags are
:
7931 #
- no
-main
: remove the symbol entry
for main from the separate
7932 # debug file DEST.debug
,
7933 #
- no
-debuglink
: don
't add the '.gnu_debuglink
' section to
7936 # Function returns zero on success. Function will return non-zero failure code
7937 # on some targets not supporting separate debug info (such as i386-msdos).
7939 proc gdb_gnu_strip_debug { dest args } {
7941 # Use the first separate debug info file location searched by GDB so the
7942 # run cannot be broken by some stale file searched with higher precedence.
7943 set debug_file "${dest}.debug"
7945 set strip_to_file_program [transform strip]
7946 set objcopy_program [gdb_find_objcopy]
7948 set debug_link [file tail $debug_file]
7949 set stripped_file "${dest}.stripped"
7951 # Get rid of the debug info, and store result in stripped_file
7952 # something like gdb/testsuite/gdb.base/blah.stripped.
7953 set result [catch "exec $strip_to_file_program --strip-debug ${dest} -o ${stripped_file}" output]
7954 verbose "result is $result"
7955 verbose "output is $output"
7960 # Workaround PR binutils/10802:
7961 # Preserve the 'x
' bit also for PIEs (Position Independent Executables).
7962 set perm [file attributes ${dest} -permissions]
7963 file attributes ${stripped_file} -permissions $perm
7965 # Get rid of everything but the debug info, and store result in debug_file
7966 # This will be in the .debug subdirectory, see above.
7967 set result [catch "exec $strip_to_file_program --only-keep-debug ${dest} -o ${debug_file}" output]
7968 verbose "result is $result"
7969 verbose "output is $output"
7974 # If no-main is passed, strip the symbol for main from the separate
7975 # file. This is to simulate the behavior of elfutils's eu
-strip, which
7976 # leaves the symtab in the original file only. There
's no way to get
7977 # objcopy or strip to remove the symbol table without also removing the
7978 # debugging sections, so this is as close as we can get.
7979 if {[lsearch -exact $args "no-main"] != -1} {
7980 set result [catch "exec $objcopy_program -N main ${debug_file} ${debug_file}-tmp" output]
7981 verbose "result is $result"
7982 verbose "output is $output"
7986 file delete "${debug_file}"
7987 file rename "${debug_file}-tmp" "${debug_file}"
7990 # Unless the "no-debuglink" flag is passed, then link the two
7991 # previous output files together, adding the .gnu_debuglink
7992 # section to the stripped_file, containing a pointer to the
7993 # debug_file, save the new file in dest.
7994 if {[lsearch -exact $args "no-debuglink"] == -1} {
7995 set result [catch "exec $objcopy_program --add-gnu-debuglink=${debug_file} ${stripped_file} ${dest}" output]
7996 verbose "result is $result"
7997 verbose "output is $output"
8003 # Workaround PR binutils/10802:
8004 # Preserve the 'x
' bit also for PIEs (Position Independent Executables).
8005 set perm [file attributes ${stripped_file} -permissions]
8006 file attributes ${dest} -permissions $perm
8011 # Test the output of GDB_COMMAND matches the pattern obtained
8012 # by concatenating all elements of EXPECTED_LINES. This makes
8013 # it possible to split otherwise very long string into pieces.
8014 # If third argument TESTNAME is not empty, it's used as the
name of the
8015 # test to be printed
on pass
/fail.
8016 proc help_test_raw
{ gdb_command expected_lines
{testname
{}} } {
8017 set expected_output
[join $expected_lines
""]
8018 if {$testname
!= {}} {
8019 gdb_test
"${gdb_command}" "${expected_output}" $testname
8023 gdb_test
"${gdb_command}" "${expected_output}"
8026 # A regexp that matches the end of help CLASS|PREFIX_COMMAND
8027 set help_list_trailer
{
8028 "Type \"apropos word\" to search for commands related to \"word\"\.[\r\n]+"
8029 "Type \"apropos -v word\" for full documentation of commands related to \"word\"\.[\r\n]+"
8030 "Command name abbreviations are allowed if unambiguous\."
8033 # Test the output of
"help COMMAND_CLASS". EXPECTED_INITIAL_LINES
8034 # are regular expressions that should match the beginning of output
,
8035 # before the list of commands in that class.
8036 # LIST_OF_COMMANDS are regular expressions that should match the
8037 # list of commands in that class.
If empty
, the command list will be
8038 # matched automatically. The presence of standard epilogue will be tested
8040 #
If last
argument TESTNAME is not empty
, it
's used as the name of the
8041 # test to be printed on pass/fail.
8042 # Notice that the '[' and ']' characters don't need to be escaped
for strings
8043 # wrapped in
{} braces.
8044 proc test_class_help
{ command_class expected_initial_lines
{list_of_commands
{}} {testname
{}} } {
8045 global help_list_trailer
8046 if {[llength $list_of_commands
]>0} {
8047 set l_list_of_commands
{"List of commands:[\r\n]+[\r\n]+"}
8048 set l_list_of_commands
[concat $l_list_of_commands $list_of_commands
]
8049 set l_list_of_commands
[concat $l_list_of_commands
{"[\r\n]+[\r\n]+"}]
8051 set l_list_of_commands
{"List of commands\:.*[\r\n]+"}
8054 "Type \"help\" followed by command name for full documentation\.[\r\n]+"
8056 set l_entire_body
[concat $expected_initial_lines $l_list_of_commands \
8057 $l_stock_body $help_list_trailer
]
8059 help_test_raw
"help ${command_class}" $l_entire_body $testname
8062 # Like test_class_help but specialised to test
"help user-defined".
8063 proc test_user_defined_class_help
{ {list_of_commands
{}} {testname
{}} } {
8064 test_class_help
"user-defined" {
8065 "User-defined commands\.[\r\n]+"
8066 "The commands in this class are those defined by the user\.[\r\n]+"
8067 "Use the \"define\" command to define a command\.[\r\n]+"
8068 } $list_of_commands $testname
8072 # COMMAND_LIST should have either one element
-- command to test
, or
8073 # two elements
-- abbreviated command to test
, and full command the first
8074 # element is abbreviation of.
8075 # The command must be a prefix command. EXPECTED_INITIAL_LINES
8076 # are regular expressions that should match the beginning of output
,
8077 # before the list of subcommands. The presence of
8078 # subcommand list and standard epilogue will be tested automatically.
8079 proc test_prefix_command_help
{ command_list expected_initial_lines
args } {
8080 global help_list_trailer
8081 set command
[lindex $command_list
0]
8082 if {[llength $command_list
]>1} {
8083 set full_command
[lindex $command_list
1]
8085 set full_command $command
8087 # Use
'list' and not just
{} because we want variables to
8088 # be expanded in this list.
8089 set l_stock_body
[list\
8090 "List of $full_command subcommands\:.*\[\r\n\]+"\
8091 "Type \"help $full_command\" followed by $full_command subcommand name for full documentation\.\[\r\n\]+"]
8092 set l_entire_body
[concat $expected_initial_lines $l_stock_body $help_list_trailer
]
8093 if {[llength $
args]>0} {
8094 help_test_raw
"help ${command}" $l_entire_body [lindex $args 0]
8096 help_test_raw
"help ${command}" $l_entire_body
8100 # Build executable named EXECUTABLE from specifications that allow
8101 # different options to be passed to different sub
-compilations.
8102 # TESTNAME is the
name of the test
; this is passed to
'untested' if
8104 # OPTIONS is passed to the final link
, using gdb_compile.
If OPTIONS
8105 # contains the option
"pthreads", then gdb_compile_pthreads is used.
8106 #
ARGS is a flat list of source specifications
, of the form
:
8107 #
{ SOURCE1 OPTIONS1
[ SOURCE2 OPTIONS2
]...
}
8108 # Each SOURCE is compiled to an object file using its OPTIONS
,
8109 # using gdb_compile.
8110 # Returns
0 on success
, -1 on failure.
8111 proc build_executable_from_specs
{testname executable options
args} {
8115 set binfile
[standard_output_file $executable
]
8117 set func gdb_compile
8118 set func_index
[lsearch
-regexp $options
{^
(pthreads|shlib|shlib_pthreads|openmp
)$
}]
8119 if {$func_index
!= -1} {
8120 set func
"${func}_[lindex $options $func_index]"
8123 # gdb_compile_shlib and gdb_compile_shlib_pthreads
do not use the
3rd
8124 # parameter. They also requires $sources
while gdb_compile and
8125 # gdb_compile_pthreads require $objects. Moreover they ignore
any options.
8126 if [string match gdb_compile_shlib
* $func
] {
8128 foreach
{s local_options
} $
args {
8129 if {[regexp
"^/" "$s"]} {
8130 lappend sources_path
"$s"
8132 lappend sources_path
"$srcdir/$subdir/$s"
8135 set ret
[$func $sources_path
"${binfile}" $options]
8136 } elseif
{[lsearch
-exact $options rust
] != -1} {
8138 foreach
{s local_options
} $
args {
8139 if {[regexp
"^/" "$s"]} {
8140 lappend sources_path
"$s"
8142 lappend sources_path
"$srcdir/$subdir/$s"
8145 set ret
[gdb_compile_rust $sources_path
"${binfile}" $options]
8149 foreach
{s local_options
} $
args {
8150 if {![regexp
"^/" "$s"]} {
8151 set s
"$srcdir/$subdir/$s"
8153 if { [$func
"${s}" "${binfile}${i}.o" object $local_options] != "" } {
8157 lappend objects
"${binfile}${i}.o"
8160 set ret
[$func $objects
"${binfile}" executable $options]
8170 # Build executable named EXECUTABLE
, from SOURCES.
If SOURCES are not
8171 # provided
, uses $EXECUTABLE.c. The TESTNAME paramer is the
name of test
8172 # to pass to untested
, if something is wrong. OPTIONS are passed
8173 # to gdb_compile directly.
8174 proc build_executable
{ testname executable
{sources
""} {options {debug}} } {
8175 if {[llength $sources
]==0} {
8176 set sources $
{executable
}.c
8179 set arglist
[list $testname $executable $options
]
8180 foreach source $sources
{
8181 lappend arglist $source $options
8184 return [eval build_executable_from_specs $arglist
]
8187 # Starts fresh GDB binary and loads an optional executable into GDB.
8188 # Usage
: clean_restart
[EXECUTABLE
]
8189 # EXECUTABLE is the basename of the binary.
8190 #
Return -1 if starting gdb or loading the executable failed.
8192 proc clean_restart
{{executable
""}} {
8200 # This is a clean restart
, so reset error and warning
count.
8205 # if { [gdb_start] == -1 } {
8208 # but gdb_start is a ${tool}_start proc, which doesn't have a defined
8209 #
return value. So instead
, we test
for errcnt.
8211 if { $errcnt
> 0 } {
8215 gdb_reinitialize_dir $srcdir
/$subdir
8217 if {$executable
!= ""} {
8218 set binfile
[standard_output_file $
{executable
}]
8219 return [gdb_load $
{binfile
}]
8225 # Prepares
for testing by calling build_executable_full
, then
8227 # TESTNAME is the
name of the test.
8228 # Each element in
ARGS is a list of the form
8229 #
{ EXECUTABLE OPTIONS SOURCE_SPEC...
}
8230 # These are passed to build_executable_from_specs
, which see.
8231 # The last EXECUTABLE is passed to clean_restart.
8232 # Returns
0 on success
, non
-zero
on failure.
8233 proc prepare_for_testing_full
{testname
args} {
8234 foreach spec $
args {
8235 if {[eval build_executable_from_specs
[list $testname
] $spec
] == -1} {
8238 set executable
[lindex $spec
0]
8240 clean_restart $executable
8244 # Prepares
for testing
, by calling build_executable
, and
then clean_restart.
8245 # Please refer to build_executable
for parameter description.
8246 proc prepare_for_testing
{ testname executable
{sources
""} {options {debug}}} {
8248 if {[build_executable $testname $executable $sources $options
] == -1} {
8251 clean_restart $executable
8256 #
Retrieve the value of EXP in the inferior
, represented in format
8257 # specified in FMT
(using
"printFMT"). DEFAULT is used as fallback if
8258 # print fails. TEST is the test message to use. It can be omitted
,
8259 # in which case a test message is built from EXP.
8261 proc get_valueof
{ fmt exp default
{test
""} } {
8265 set test
"get valueof \"${exp}\""
8269 gdb_test_multiple
"print${fmt} ${exp}" "$test" {
8270 -re
-wrap
"^\\$\[0-9\]* = (\[^\r\n\]*)" {
8271 set val $expect_out
(1,string
)
8275 fail
"$test (timeout)"
8281 #
Retrieve the value of local var EXP in the inferior. DEFAULT is used as
8282 # fallback
if print fails. TEST is the test message to use. It can be
8283 # omitted
, in which case a test message is built from EXP.
8285 proc get_local_valueof
{ exp default
{test
""} } {
8289 set test
"get local valueof \"${exp}\""
8293 gdb_test_multiple
"info locals ${exp}" "$test" {
8294 -re
"$exp = (\[^\r\n\]*)\r\n$gdb_prompt $" {
8295 set val $expect_out
(1,string
)
8299 fail
"$test (timeout)"
8305 #
Retrieve the value of EXP in the inferior
, as a signed decimal value
8306 #
(using
"print /d"). DEFAULT is used as fallback if print fails.
8307 # TEST is the test message to use. It can be omitted
, in which case
8308 # a test message is built from EXP.
8310 proc get_integer_valueof
{ exp default
{test
""} } {
8314 set test
"get integer valueof \"${exp}\""
8318 gdb_test_multiple
"print /d ${exp}" "$test" {
8319 -re
-wrap
"^\\$\[0-9\]* = (\[-\]*\[0-9\]*).*" {
8320 set val $expect_out
(1,string
)
8324 fail
"$test (timeout)"
8330 #
Retrieve the value of EXP in the inferior
, as an hexadecimal value
8331 #
(using
"print /x"). DEFAULT is used as fallback if print fails.
8332 # TEST is the test message to use. It can be omitted
, in which case
8333 # a test message is built from EXP.
8335 proc get_hexadecimal_valueof
{ exp default
{test
""} } {
8339 set test
"get hexadecimal valueof \"${exp}\""
8343 gdb_test_multiple
"print /x ${exp}" $test {
8344 -re
"\\$\[0-9\]* = (0x\[0-9a-zA-Z\]+).*$gdb_prompt $" {
8345 set val $expect_out
(1,string
)
8352 #
Retrieve the size of TYPE in the inferior
, as a decimal value. DEFAULT
8353 # is used as fallback
if print fails. TEST is the test message to use.
8354 # It can be omitted
, in which case a test message is
'sizeof (TYPE)'.
8356 proc get_sizeof
{ type default
{test
""} } {
8357 return [get_integer_valueof
"sizeof (${type})" $default $test]
8360 proc get_target_charset
{ } {
8363 gdb_test_multiple
"show target-charset" "" {
8364 -re
"The target character set is \"auto; currently (\[^\"\]*)\".*$gdb_prompt $" {
8365 return $expect_out
(1,string
)
8367 -re
"The target character set is \"(\[^\"\]*)\".*$gdb_prompt $" {
8368 return $expect_out
(1,string
)
8372 # Pick a reasonable default.
8373 warning
"Unable to read target-charset."
8377 #
Get the address of VAR.
8379 proc get_var_address
{ var
} {
8380 global gdb_prompt hex
8382 # Match output like
:
8384 # $
5 = (int (*)()) 0
8385 # $
6 = (int (*)()) 0x24 <function_bar
>
8387 gdb_test_multiple
"print &${var}" "get address of ${var}" {
8388 -re
"\\\$\[0-9\]+ = \\(.*\\) (0|$hex)( <${var}>)?\[\r\n\]+${gdb_prompt} $"
8390 pass
"get address of ${var}"
8391 if { $expect_out
(1,string
) == "0" } {
8394 return $expect_out
(1,string
)
8401 #
Return the frame number
for the currently selected frame
8402 proc get_current_frame_number
{{test_name
""}} {
8405 if { $test_name
== "" } {
8406 set test_name
"get current frame number"
8409 gdb_test_multiple
"frame" $test_name {
8410 -re
"#(\[0-9\]+) .*$gdb_prompt $" {
8411 set frame_num $expect_out
(1,string
)
8417 #
Get the current value
for remotetimeout and
return it.
8418 proc get_remotetimeout
{ } {
8422 gdb_test_multiple
"show remotetimeout" "" {
8423 -re
"Timeout limit to wait for target to respond is ($decimal).*$gdb_prompt $" {
8424 return $expect_out
(1,string
)
8428 # Pick the default that gdb uses
8429 warning
"Unable to read remotetimeout"
8433 #
Set the remotetimeout to the specified timeout. Nothing is returned.
8434 proc set_remotetimeout
{ timeout
} {
8437 gdb_test_multiple
"set remotetimeout $timeout" "" {
8438 -re
"$gdb_prompt $" {
8439 verbose
"Set remotetimeout to $timeout\n"
8444 #
Get the target
's current endianness and return it.
8445 proc get_endianness { } {
8448 gdb_test_multiple "show endian" "determine endianness" {
8449 -re ".* (little|big) endian.*\r\n$gdb_prompt $" {
8451 return $expect_out(1,string)
8457 # Get the target's default endianness and
return it.
8458 gdb_caching_proc target_endianness
{} {
8461 set me
"target_endianness"
8463 set src
{ int main
() { return 0; } }
8464 if {![gdb_simple_compile $me $src executable
]} {
8472 set res
[get_endianness
]
8475 remote_file build
delete $
obj
8480 # ROOT and FULL are file names. Returns the relative path from ROOT
8481 # to FULL. Note that FULL must be in a subdirectory of ROOT.
8482 #
For example
, given ROOT
= /usr
/bin and FULL
= /usr
/bin
/ls
, this
8485 proc relative_filename
{root full
} {
8486 set root_split
[file split $root
]
8487 set full_split
[file split $full
]
8489 set len
[llength $root_split
]
8491 if {[eval file join $root_split
]
8492 != [eval file join
[lrange $full_split
0 [expr
{$len
- 1}]]]} {
8493 error
"$full not a subdir of $root"
8496 return [eval file join
[lrange $full_split $len end
]]
8499 #
If GDB_PARALLEL
exists, then set up the parallel
-mode directories.
8500 if {[info exists GDB_PARALLEL
]} {
8501 if {[is_remote host
]} {
8505 [make_gdb_parallel_path outputs
] \
8506 [make_gdb_parallel_path temp
] \
8507 [make_gdb_parallel_path
cache]
8511 #
Set the inferior
's cwd to the output directory, in order to have it
8512 # dump core there. This must be called before the inferior is
8515 proc set_inferior_cwd_to_output_dir {} {
8516 # Note this sets the inferior's cwd
("set cwd"), not GDB's ("cd").
8517 #
If GDB crashes
, we want its core dump in gdb
/testsuite
/, not in
8518 # the testcase
's dir, so we can detect the unexpected core at the
8519 # end of the test run.
8520 if {![is_remote host]} {
8521 set output_dir [standard_output_file ""]
8522 gdb_test_no_output "set cwd $output_dir" \
8523 "set inferior cwd to test directory"
8527 # Get the inferior's PID.
8529 proc get_inferior_pid
{} {
8531 gdb_test_multiple
"inferior" "get inferior pid" {
8532 -re
"process (\[0-9\]*).*$::gdb_prompt $" {
8533 set pid $expect_out
(1,string
)
8540 # Find the kernel
-produced core file dumped
for the current testfile
8541 #
program. PID was the inferior
's pid, saved before the inferior
8542 # exited with a signal, or -1 if not known. If not on a remote host,
8543 # this assumes the core was generated in the output directory.
8544 # Returns the name of the core dump, or empty string if not found.
8546 proc find_core_file {pid} {
8547 # For non-remote hosts, since cores are assumed to be in the
8548 # output dir, which we control, we use a laxer "core.*" glob. For
8549 # remote hosts, as we don't know whether the
dir is being reused
8550 #
for parallel runs
, we use stricter names with no globs. It is
8551 # not clear whether this is really important
, but it preserves
8554 if {![is_remote host
]} {
8555 lappend files core.
*
8556 } elseif
{$pid
!= -1} {
8557 lappend files core.$pid
8559 lappend files $
{::testfile
}.core
8562 foreach file $files
{
8563 if {![is_remote host
]} {
8564 set names
[glob
-nocomplain
[standard_output_file $file
]]
8565 if {[llength $names
] == 1} {
8566 return [lindex $names
0]
8569 if {[remote_file host
exists $file
]} {
8577 # Check
for production of a core file and remove it. PID is the
8578 # inferior
's pid or -1 if not known. TEST is the test's message.
8580 proc remove_core
{pid
{test
""}} {
8582 set test
"cleanup core file"
8585 set file
[find_core_file $pid
]
8587 remote_file host
delete $file
8588 pass
"$test (removed)"
8590 pass
"$test (not found)"
8594 proc core_find
{binfile
{deletefiles
{}} {arg ""}} {
8595 global objdir subdir
8597 set destcore
"$binfile.core"
8598 file
delete $destcore
8600 # Create a core file named
"$destcore" rather than just "core", to
8601 # avoid problems with sys admin types that like to regularly prune all
8602 # files named
"core" from the system.
8604 # Arbitrarily try setting the core size
limit to
"unlimited" since
8605 # this does not hurt
on systems where the command does not work and
8606 # allows us to generate a core
on systems where it does.
8608 # Some systems append
"core" to the name of the program; others append
8609 # the
name of the
program to
"core"; still others (like Linux, as of
8610 # May
2003) create cores named
"core.PID". In the latter case, we
8611 # could have many core files lying around
, and it may be difficult to
8612 # tell which one is ours
, so let
's run the program in a subdirectory.
8614 set coredir [standard_output_file coredir.[getpid]]
8616 catch "system \"(cd ${coredir}; ulimit -c unlimited; ${binfile} ${arg}; true) >/dev/null 2>&1\""
8617 # remote_exec host "${binfile}"
8618 foreach i "${coredir}/core ${coredir}/core.coremaker.c ${binfile}.core" {
8619 if [remote_file build exists $i] {
8620 remote_exec build "mv $i $destcore"
8624 # Check for "core.PID", "core.EXEC.PID.HOST.TIME", etc. It's fine
8625 # to use a glob here as we
're looking inside a directory we
8626 # created. Also, this procedure only works on non-remote hosts.
8627 if { $found == 0 } {
8628 set names [glob -nocomplain -directory $coredir core.*]
8629 if {[llength $names] == 1} {
8630 set corefile [file join $coredir [lindex $names 0]]
8631 remote_exec build "mv $corefile $destcore"
8635 if { $found == 0 } {
8636 # The braindamaged HPUX shell quits after the ulimit -c above
8637 # without executing ${binfile}. So we try again without the
8638 # ulimit here if we didn't find a core file above.
8639 # Oh
, I should mention that
any "braindamaged" non-Unix system has
8640 # the same problem. I like the cd bit too
, it
's really neat'n stuff.
8641 catch
"system \"(cd ${objdir}/${subdir}; ${binfile}; true) >/dev/null 2>&1\""
8642 foreach i
"${objdir}/${subdir}/core ${objdir}/${subdir}/core.coremaker.c ${binfile}.core" {
8643 if [remote_file build
exists $i
] {
8644 remote_exec build
"mv $i $destcore"
8650 # Try to clean up after ourselves.
8651 foreach deletefile $deletefiles
{
8652 remote_file build
delete [file join $coredir $deletefile
]
8654 remote_exec build
"rmdir $coredir"
8656 if { $found
== 0 } {
8657 warning
"can't generate a core file - core tests suppressed - check ulimit -c"
8663 # gdb_target_symbol_prefix compiles a test
program and
then examines
8664 # the output from objdump to determine the prefix
(such as underscore
)
8665 #
for linker symbol prefixes.
8667 gdb_caching_proc gdb_target_symbol_prefix
{} {
8668 #
Compile a simple test
program...
8669 set src
{ int main
() { return 0; } }
8670 if {![gdb_simple_compile target_symbol_prefix $src executable
]} {
8676 set objdump_program
[gdb_find_objdump
]
8677 set result
[catch
"exec $objdump_program --syms $obj" output]
8680 && ![regexp
-lineanchor \
8681 { ([^ a
-zA
-Z0
-9]*)main$
} $output dummy prefix
] } {
8682 verbose
"gdb_target_symbol_prefix: Could not find main in objdump output; returning null prefix" 2
8690 #
Return 1 if target supports scheduler locking
, otherwise
return 0.
8692 gdb_caching_proc target_supports_scheduler_locking
{} {
8695 set me
"gdb_target_supports_scheduler_locking"
8697 set src
{ int main
() { return 0; } }
8698 if {![gdb_simple_compile $me $src executable
]} {
8707 set supports_schedule_locking
-1
8708 set current_schedule_locking_mode
""
8710 set test
"reading current scheduler-locking mode"
8711 gdb_test_multiple
"show scheduler-locking" $test {
8712 -re
"Mode for locking scheduler during execution is \"(\[\^\"\]*)\".*$gdb_prompt" {
8713 set current_schedule_locking_mode $expect_out
(1,string
)
8715 -re
"$gdb_prompt $" {
8716 set supports_schedule_locking
0
8719 set supports_schedule_locking
0
8723 if { $supports_schedule_locking
== -1 } {
8724 set test
"checking for scheduler-locking support"
8725 gdb_test_multiple
"set scheduler-locking $current_schedule_locking_mode" $test {
8726 -re
"Target '\[^'\]+' cannot support this command\..*$gdb_prompt $" {
8727 set supports_schedule_locking
0
8729 -re
"$gdb_prompt $" {
8730 set supports_schedule_locking
1
8733 set supports_schedule_locking
0
8738 if { $supports_schedule_locking
== -1 } {
8739 set supports_schedule_locking
0
8743 remote_file build
delete $
obj
8744 verbose
"$me: returning $supports_schedule_locking" 2
8745 return $supports_schedule_locking
8748 #
Return 1 if compiler supports use of nested functions. Otherwise
,
8751 gdb_caching_proc support_nested_function_tests
{} {
8752 #
Compile a test
program containing a nested function
8753 return [gdb_can_simple_compile nested_func
{
8763 # gdb_target_symbol returns the provided symbol with the correct prefix
8764 # prepended.
(See gdb_target_symbol_prefix
, above.
)
8766 proc gdb_target_symbol
{ symbol
} {
8767 set prefix
[gdb_target_symbol_prefix
]
8768 return "${prefix}${symbol}"
8771 # gdb_target_symbol_prefix_flags_asm returns a string that can be
8772 # added to gdb_compile options to
define the C
-preprocessor macro
8773 # SYMBOL_PREFIX with a value that can be prepended to symbols
8774 #
for targets which require a prefix
, such as underscore.
8776 # This version
(_asm
) defines the prefix without double quotes
8777 # surrounding the prefix. It is used to
define the macro
8778 # SYMBOL_PREFIX
for assembly language files. Another version
, below
,
8779 # is used
for symbols in inline assembler in C
/C
++ files.
8781 # The lack of quotes in this version
(_asm
) makes it possible to
8782 #
define supporting macros in the .S file.
(The version which
8783 # uses quotes
for the prefix won
't work for such files since it's
8784 # impossible to
define a quote
-stripping macro in C.
)
8786 # It
's possible to use this version (_asm) for C/C++ source files too,
8787 # but a string is usually required in such files; providing a version
8788 # (no _asm) which encloses the prefix with double quotes makes it
8789 # somewhat easier to define the supporting macros in the test case.
8791 proc gdb_target_symbol_prefix_flags_asm {} {
8792 set prefix [gdb_target_symbol_prefix]
8793 if {$prefix ne ""} {
8794 return "additional_flags=-DSYMBOL_PREFIX=$prefix"
8800 # gdb_target_symbol_prefix_flags returns the same string as
8801 # gdb_target_symbol_prefix_flags_asm, above, but with the prefix
8802 # enclosed in double quotes if there is a prefix.
8804 # See the comment for gdb_target_symbol_prefix_flags_asm for an
8805 # extended discussion.
8807 proc gdb_target_symbol_prefix_flags {} {
8808 set prefix [gdb_target_symbol_prefix]
8809 if {$prefix ne ""} {
8810 return "additional_flags=-DSYMBOL_PREFIX=\"$prefix\""
8816 # A wrapper for 'remote_exec host
' that passes or fails a test.
8817 # Returns 0 if all went well, nonzero on failure.
8818 # TEST is the name of the test, other arguments are as for remote_exec.
8820 proc run_on_host { test program args } {
8821 verbose -log "run_on_host: $program $args"
8822 # remote_exec doesn't work properly
if the output is
set but the
8823 # input is the empty string
-- so replace an empty input with
8825 if {[llength $
args] > 1 && [lindex $
args 1] == ""} {
8826 set args [lreplace $
args 1 1 "/dev/null"]
8828 set result
[eval remote_exec host
[list $
program] $
args]
8829 verbose
"result is $result"
8830 set status [lindex $result
0]
8831 set output
[lindex $result
1]
8836 verbose
-log "run_on_host failed: $output"
8837 if { $output
== "spawn failed" } {
8846 #
Return non
-zero
if "board_info debug_flags" mentions Fission.
8847 # http
://gcc.gnu.org
/wiki
/DebugFission
8848 # Fission doesn
't support everything yet.
8849 # This supports working around bug 15954.
8851 proc using_fission { } {
8852 set debug_flags [board_info [target_info name] debug_flags]
8853 return [regexp -- "-gsplit-dwarf" $debug_flags]
8856 # Search LISTNAME in uplevel LEVEL caller and set variables according to the
8857 # list of valid options with prefix PREFIX described by ARGSET.
8859 # The first member of each one- or two-element list in ARGSET defines the
8860 # name of a variable that will be added to the caller's scope.
8862 #
If only one element is given to
describe an option
, it the value is
8863 #
0 if the option is not present in
(the caller
's) ARGS or 1 if
8866 # If two elements are given, the second element is the default value of
8867 # the variable. This is then overwritten if the option exists in ARGS.
8868 # If EVAL, then subst is called on the value, which allows variables
8871 # Any parse_args elements in (the caller's
) ARGS will be removed
, leaving
8872 #
any optional components.
8875 # proc myproc
{foo
args} {
8876 # parse_list
args 1 {{bar
} {baz
"abc"} {qux}} "-" false
8879 # myproc ABC
-bar
-baz DEF peanut butter
8880 # will
define the following variables in myproc
:
8881 # foo
(=ABC
), bar
(=1), baz
(=DEF
), and qux
(=0)
8882 #
args will be the list
{peanut butter
}
8884 proc parse_list
{ level listname argset prefix eval
} {
8885 upvar $level $listname
args
8887 foreach
argument $argset
{
8888 if {[llength $
argument] == 1} {
8889 # Normalize
argument, strip leading
/trailing whitespace.
8890 # Allows us to treat
{foo
} and
{ foo
} the same.
8891 set argument [string trim $
argument]
8893 # No default specified
, so we assume that we should
set
8894 # the value to
1 if the
arg is present and
0 if it
's not.
8895 # It is assumed that no value is given with the argument.
8896 set pattern "$prefix$argument"
8897 set result [lsearch -exact $args $pattern]
8899 if {$result != -1} {
8901 set args [lreplace $args $result $result]
8905 uplevel $level [list set $argument $value]
8906 } elseif {[llength $argument] == 2} {
8907 # There are two items in the argument. The second is a
8908 # default value to use if the item is not present.
8909 # Otherwise, the variable is set to whatever is provided
8910 # after the item in the args.
8911 set arg [lindex $argument 0]
8912 set pattern "$prefix[lindex $arg 0]"
8913 set result [lsearch -exact $args $pattern]
8915 if {$result != -1} {
8916 set value [lindex $args [expr $result+1]]
8918 set value [uplevel [expr $level + 1] [list subst $value]]
8920 set args [lreplace $args $result [expr $result+1]]
8922 set value [lindex $argument 1]
8924 set value [uplevel $level [list subst $value]]
8927 uplevel $level [list set $arg $value]
8929 error "Badly formatted argument \"$argument\" in argument set"
8934 # Search the caller's
args variable and
set variables according to the list of
8935 # valid options described by ARGSET.
8937 proc parse_args
{ argset
} {
8938 parse_list
2 args $argset
"-" false
8940 # The remaining
args should be checked to see that they match the
8941 # number of items expected to be passed into the procedure...
8944 # Process the caller
's options variable and set variables according
8945 # to the list of valid options described by OPTIONSET.
8947 proc parse_options { optionset } {
8948 parse_list 2 options $optionset "" true
8950 # Require no remaining options.
8951 upvar 1 options options
8952 if { [llength $options] != 0 } {
8953 error "Options left unparsed: $options"
8957 # Capture the output of COMMAND in a string ignoring PREFIX (a regexp);
8958 # return that string.
8960 proc capture_command_output { command prefix } {
8964 set test "capture_command_output for $command"
8966 set output_string ""
8967 gdb_test_multiple $command $test {
8968 -re "^(\[^\r\n\]+\r\n)" {
8969 if { ![string equal $output_string ""] } {
8970 set output_string [join [list $output_string $expect_out(1,string)] ""]
8972 set output_string $expect_out(1,string)
8977 -re "^$gdb_prompt $" {
8981 # Strip the command.
8982 set command_re [string_to_regexp ${command}]
8983 set output_string [regsub ^$command_re\r\n $output_string ""]
8986 if { $prefix != "" } {
8987 set output_string [regsub ^$prefix $output_string ""]
8990 # Strip a trailing newline.
8991 set output_string [regsub "\r\n$" $output_string ""]
8993 return $output_string
8996 # A convenience function that joins all the arguments together, with a
8997 # regexp that matches exactly one end of line in between each argument.
8998 # This function is ideal to write the expected output of a GDB command
8999 # that generates more than a couple of lines, as this allows us to write
9000 # each line as a separate string, which is easier to read by a human
9003 proc multi_line { args } {
9004 if { [llength $args] == 1 } {
9005 set hint "forgot {*} before list argument?"
9006 error "multi_line called with one argument ($hint)"
9008 return [join $args "\r\n"]
9011 # Similar to the above, but while multi_line is meant to be used to
9012 # match GDB output, this one is meant to be used to build strings to
9013 # send as GDB input.
9015 proc multi_line_input { args } {
9016 return [join $args "\n"]
9019 # Return how many newlines there are in the given string.
9021 proc count_newlines { string } {
9022 return [regexp -all "\n" $string]
9025 # Return the version of the DejaGnu framework.
9027 # The return value is a list containing the major, minor and patch version
9028 # numbers. If the version does not contain a minor or patch number, they will
9029 # be set to 0. For example:
9035 proc dejagnu_version { } {
9036 # The frame_version variable is defined by DejaGnu, in runtest.exp.
9037 global frame_version
9039 verbose -log "DejaGnu version: $frame_version"
9040 verbose -log "Expect version: [exp_version]"
9041 verbose -log "Tcl version: [info tclversion]"
9043 set dg_ver [split $frame_version .]
9045 while { [llength $dg_ver] < 3 } {
9052 # Define user-defined command COMMAND using the COMMAND_LIST as the
9053 # command's definition. The terminating
"end" is added automatically.
9055 proc gdb_define_cmd
{command command_list
} {
9058 set input
[multi_line_input
{*}$command_list
"end"]
9059 set test
"define $command"
9061 gdb_test_multiple
"define $command" $test {
9062 -re
"End with \[^\r\n\]*\r\n *>$" {
9063 gdb_test_multiple $input $test
{
9064 -re
"\r\n$gdb_prompt " {
9071 # Override the
'cd' builtin with a version that ensures that the
9072 #
log file keeps pointing at the same file. We need this because
9073 # unfortunately the path to the
log file is recorded using an
9074 # relative path
name, and
, we sometimes need to close
/reopen the
log
9075 # after changing the current directory. See get_compiler_info.
9077 rename cd builtin_cd
9081 #
Get the existing
log file flags.
9082 set log_file_info
[log_file
-info]
9084 # Split the flags into
args and file
name.
9085 set log_file_flags
""
9086 set log_file_file
""
9087 foreach
arg [ split
"$log_file_info" " "] {
9088 if [string match
"-*" $arg] {
9089 lappend log_file_flags $
arg
9091 lappend log_file_file $
arg
9095 #
If there was an existing file
, ensure it is an absolute path
, and
then
9097 if { $log_file_file
!= "" } {
9098 set log_file_file
[file normalize $log_file_file
]
9100 log_file $log_file_flags
"$log_file_file"
9103 #
Call the builtin version of cd.
9107 #
Return a list of all languages supported by GDB
, suitable
for use in
9108 #
'set language NAME'. This doesn
't include the languages auto,
9109 # local, or unknown.
9110 gdb_caching_proc gdb_supported_languages {} {
9111 # The extra space after 'complete
set language
' in the command below is
9112 # critical. Only with that space will GDB complete the next level of
9113 # the command, i.e. fill in the actual language names.
9114 set output [remote_exec host $::GDB "$::INTERNAL_GDBFLAGS -batch -ex \"complete set language \""]
9116 if {[lindex $output 0] != 0} {
9117 error "failed to get list of supported languages"
9121 foreach line [split [lindex $output 1] \n] {
9122 if {[regexp "set language (\[^\r\]+)" $line full_match lang]} {
9123 # If LANG is not one of the languages that we ignore, then
9124 # add it to our list of languages.
9125 if {[lsearch -exact {auto local unknown} $lang] == -1} {
9133 # Check if debugging is enabled for gdb.
9135 proc gdb_debug_enabled { } {
9138 # If not already read, get the debug setting from environment or board setting.
9139 if {![info exists gdbdebug]} {
9141 if [info exists env(GDB_DEBUG)] {
9142 set gdbdebug $env(GDB_DEBUG)
9143 } elseif [target_info exists gdb,debug] {
9144 set gdbdebug [target_info gdb,debug]
9150 # Ensure it not empty.
9151 return [expr { $gdbdebug != "" }]
9154 # Turn on debugging if enabled, or reset if already on.
9156 proc gdb_debug_init { } {
9160 if ![gdb_debug_enabled] {
9164 # First ensure logging is off.
9165 send_gdb "set logging enabled off\n"
9167 set debugfile [standard_output_file gdb.debug]
9168 send_gdb "set logging file $debugfile\n"
9170 send_gdb "set logging debugredirect\n"
9173 foreach entry [split $gdbdebug ,] {
9174 send_gdb "set debug $entry 1\n"
9177 # Now that everything is set, enable logging.
9178 send_gdb "set logging enabled on\n"
9180 -re "Copying output to $debugfile.*Redirecting debug output to $debugfile.*$gdb_prompt $" {}
9181 timeout { warning "Couldn't
set logging file
" }
9185 # Check
if debugging is enabled
for gdbserver.
9187 proc gdbserver_debug_enabled
{ } {
9188 # Always disabled
for GDB only setups.
9192 # Open the file
for logging gdb input
9194 proc gdb_stdin_log_init
{ } {
9195 gdb_persistent_global in_file
9197 if {[info exists in_file
]} {
9198 # Close existing file.
9199 catch
"close $in_file"
9202 set logfile
[standard_output_file_with_gdb_instance gdb.in
]
9203 set in_file
[open $logfile w
]
9206 # Write to the file
for logging gdb input.
9207 # TYPE can be one of the following
:
9208 #
"standard" : Default. Standard message written to the log
9209 #
"answer" : Answer to a question (eg "Y"). Not written the log.
9210 #
"optional" : Optional message. Not written to the log.
9212 proc gdb_stdin_log_write
{ message
{type standard
} } {
9215 if {![info exists in_file
]} {
9219 # Check message types.
9220 switch -regexp
-- $type
{
9229 # Write to the
log and make sure the output is there
, even in case
9231 puts
-nonewline $in_file
"$message"
9235 # Write the command line used to invocate gdb to the cmd file.
9237 proc gdb_write_cmd_file
{ cmdline
} {
9238 set logfile
[standard_output_file_with_gdb_instance gdb.cmd
]
9239 set cmd_file
[open $logfile w
]
9240 puts $cmd_file $cmdline
9241 catch
"close $cmd_file"
9244 # Compare contents of FILE to string STR. Pass with MSG
if equal
, otherwise
9247 proc cmp_file_string
{ file str msg
} {
9248 if { ![file
exists $file
]} {
9253 set caught_error
[catch
{
9254 set fp
[open
"$file" r]
9255 set file_contents
[read $fp
]
9258 if {$caught_error
} {
9259 error
"$error_message"
9264 if { $file_contents
== $str
} {
9271 # Compare FILE1 and FILE2 as binary files.
Return 0 if the files are
9272 # equal
, otherwise
, return non
-zero.
9274 proc cmp_binary_files
{ file1 file2
} {
9275 set fd1
[open $file1
]
9276 fconfigure $fd1
-translation binary
9277 set fd2
[open $file2
]
9278 fconfigure $fd2
-translation binary
9282 set blk1
[read $fd1 $blk_size
]
9283 set blk2
[read $fd2 $blk_size
]
9284 set diff
[string compare $blk1 $blk2
]
9285 if {$diff
!= 0 ||
[eof $fd1
] ||
[eof $fd2
]} {
9293 # Does the compiler support CTF debug output using
'-gctf' compiler
9294 # flag?
If not
then we should skip these tests. We should also
9295 # skip them
if libctf was explicitly disabled.
9297 gdb_caching_proc allow_ctf_tests
{} {
9298 global enable_libctf
9300 if {$enable_libctf eq
"no"} {
9304 set can_ctf
[gdb_can_simple_compile ctfdebug
{
9308 } executable
"additional_flags=-gctf"]
9313 #
Return 1 if compiler supports
-gstatement
-frontiers. Otherwise
,
9316 gdb_caching_proc supports_statement_frontiers
{} {
9317 return [gdb_can_simple_compile supports_statement_frontiers
{
9321 } executable
"additional_flags=-gstatement-frontiers"]
9324 #
Return 1 if compiler supports
-mmpx
-fcheck
-pointer
-bounds. Otherwise
,
9327 gdb_caching_proc supports_mpx_check_pointer_bounds
{} {
9328 set flags
"additional_flags=-mmpx additional_flags=-fcheck-pointer-bounds"
9329 return [gdb_can_simple_compile supports_mpx_check_pointer_bounds
{
9333 } executable $flags
]
9336 #
Return 1 if compiler supports
-fcf
-protection
=. Otherwise
,
9339 gdb_caching_proc supports_fcf_protection
{} {
9340 return [gdb_can_simple_compile supports_fcf_protection
{
9344 } executable
"additional_flags=-fcf-protection=full"]
9347 #
Return true
if symbols were read in using
-readnow. Otherwise
,
9351 return [expr
{[lsearch
-exact $
::GDBFLAGS
-readnow
] != -1
9352 ||
[lsearch
-exact $
::GDBFLAGS
--readnow
] != -1}]
9355 #
Return 'gdb_index' if the symbols from OBJFILE were read using a
9356 # .gdb_index index.
Return 'debug_names' if the symbols were read
9357 # using a DWARF
-5 style .debug_names index. Otherwise
, return an
9360 proc have_index
{ objfile
} {
9362 # This proc is mostly used with $binfile
, but that gives problems with
9363 # remote host
, while using $testfile would work.
9364 # Fix this by reducing $binfile to $testfile.
9365 set objfile
[file tail $objfile
]
9367 set index_type
[get_index_type $objfile
]
9369 if { $index_type eq
"gdb" } {
9371 } elseif
{ $index_type eq
"dwarf5" } {
9372 return "debug_names"
9378 #
Return 1 if partial symbols are available. Otherwise
, return 0.
9380 proc psymtabs_p
{ } {
9383 set cmd
"maint info psymtab"
9384 gdb_test_multiple $cmd
"" {
9385 -re
"$cmd\r\n$gdb_prompt $" {
9396 # Verify that partial symtab expansion
for $filename has state $readin.
9398 proc verify_psymtab_expanded
{ filename readin
} {
9401 set cmd
"maint info psymtab"
9402 set test
"$cmd: $filename: $readin"
9403 set re
[multi_line \
9404 " \{ psymtab \[^\r\n\]*$filename\[^\r\n\]*" \
9408 gdb_test_multiple $cmd $test
{
9409 -re
"$cmd\r\n$gdb_prompt $" {
9410 unsupported $gdb_test_name
9418 # Add a .gdb_index section to
PROGRAM.
9419 #
PROGRAM is assumed to be the output of standard_output_file.
9420 # Returns the
0 if there is a failure
, otherwise
1.
9422 # STYLE controls which style of index to add
, if needed. The empty
9423 # string
(the default
) means .gdb_index
; "-dwarf-5" means .debug_names.
9425 proc add_gdb_index
{ program {style
""} } {
9426 global srcdir GDB env
9427 set contrib_dir
"$srcdir/../contrib"
9428 set env
(GDB
) [append_gdb_data_directory_option $GDB
]
9429 set result
[catch
"exec $contrib_dir/gdb-add-index.sh $style $program" output]
9430 if { $result
!= 0 } {
9431 verbose
-log "result is $result"
9432 verbose
-log "output is $output"
9439 # Use
'maint print objfiles OBJFILE' to determine what
(if any) type
9440 # of index is present in OBJFILE.
Return a string indicating the
9443 #
'gdb' - Contains a .gdb_index style index
,
9445 #
'dwarf5' - Contain DWARF5 style index sections
,
9447 #
'readnow' - A fake .gdb_index as a result of readnow being used
,
9449 #
'cooked' - The cooked index created when reading non
-indexed debug
9452 #
'none' - There
's no index, and no debug information to create a
9453 # cooked index from.
9455 # If something goes wrong then this proc will emit a FAIL and return
9458 # TESTNAME is used as part of any pass/fail emitted from this proc.
9459 proc get_index_type { objfile { testname "" } } {
9460 if { $testname eq "" } {
9461 set testname "find index type"
9464 set index_type "unknown"
9465 gdb_test_multiple "maint print objfiles ${objfile}" $testname -lbl {
9466 -re "\r\n\\.gdb_index: version ${::decimal}(?=\r\n)" {
9467 set index_type "gdb"
9468 gdb_test_lines "" $gdb_test_name ".*"
9470 -re "\r\n\\.debug_names: exists(?=\r\n)" {
9471 set index_type "dwarf5"
9472 gdb_test_lines "" $gdb_test_name ".*"
9474 -re "\r\n(Cooked index in use:|Psymtabs)(?=\r\n)" {
9475 set index_type "cooked"
9476 gdb_test_lines "" $gdb_test_name ".*"
9478 -re ".gdb_index: faked for \"readnow\"" {
9479 set index_type "readnow"
9480 gdb_test_lines "" $gdb_test_name ".*"
9483 set index_type "none"
9487 gdb_assert { $index_type ne "unknown" } \
9488 "$testname, check type is valid"
9490 if { $index_type eq "unknown" } {
9497 # Add a .gdb_index section to PROGRAM, unless it alread has an index
9498 # (.gdb_index/.debug_names). Gdb doesn't support building an index from a
9499 #
program already using one.
Return 1 if a .gdb_index was added
, return 0
9500 #
if it already contained an index
, and
-1 if an error occurred.
9502 # STYLE controls which style of index to add
, if needed. The empty
9503 # string
(the default
) means .gdb_index
; "-dwarf-5" means .debug_names.
9505 proc ensure_gdb_index
{ binfile
{style
""} } {
9506 set testfile
[file tail $binfile
]
9508 set test
"check if index present"
9509 set index_type
[get_index_type $testfile $test
]
9511 if { $index_type eq
"gdb" || $index_type eq "dwarf5" } {
9515 if { $index_type eq
"readnow" } {
9519 if { [add_gdb_index $binfile $style
] == "1" } {
9526 #
Return 1 if executable contains .debug_types section. Otherwise
, return 0.
9528 proc debug_types
{ } {
9531 set cmd
"maint info sections"
9532 gdb_test_multiple $cmd
"" {
9533 -re
-wrap
"at $hex: .debug_types.*" {
9544 #
Return the addresses in the line table
for FILE
for which is_stmt is true.
9546 proc is_stmt_addresses
{ file
} {
9552 gdb_test_multiple
"maint info line-table $file" "" {
9553 -re
"\r\n$decimal\[ \t\]+$decimal\[ \t\]+($hex)\[ \t\]+$hex\[ \t\]+Y\[^\r\n\]*" {
9554 lappend is_stmt $expect_out
(1,string
)
9564 #
Return 1 if hex number VAL is an element of HEXLIST.
9566 proc hex_in_list
{ val hexlist
} {
9567 # Normalize val by removing
0x prefix
, and leading zeros.
9568 set val
[regsub ^
0x $val
""]
9569 set val
[regsub ^
0+ $val
"0"]
9572 set index
[lsearch
-regexp $hexlist $re
]
9573 return [expr $index
!= -1]
9576 # As
info args, but also add the default
values.
9578 proc info_args_with_defaults
{ name } {
9581 foreach
arg [info args $
name] {
9582 if { [info default $
name $
arg default_value
] } {
9583 lappend
args [list $
arg $default_value
]
9592 # Override proc
NAME to proc OVERRIDE
for the duration of the execution of
9595 proc with_override
{ name override body
} {
9596 # Implementation note
: It
's possible to implement the override using
9597 # rename, like this:
9598 # rename $name save_$name
9599 # rename $override $name
9600 # set code [catch {uplevel 1 $body} result]
9601 # rename $name $override
9602 # rename save_$name $name
9603 # but there are two issues here:
9604 # - the save_$name might clash with an existing proc
9605 # - the override is no longer available under its original name during
9607 # So, we use this more elaborate but cleaner mechanism.
9609 # Save the old proc, if it exists.
9610 if { [info procs $name] != "" } {
9611 set old_args [info_args_with_defaults $name]
9612 set old_body [info body $name]
9618 # Install the override.
9619 set new_args [info_args_with_defaults $override]
9620 set new_body [info body $override]
9621 eval proc $name {$new_args} {$new_body}
9624 set code [catch {uplevel 1 $body} result]
9626 # Restore old proc if it existed on entry, else delete it.
9628 eval proc $name {$old_args} {$old_body}
9633 # Return as appropriate.
9635 global errorInfo errorCode
9636 return -code error -errorinfo $errorInfo -errorcode $errorCode $result
9637 } elseif { $code > 1 } {
9638 return -code $code $result
9644 # Run BODY after setting the TERM environment variable to 'ansi
', and
9645 # unsetting the NO_COLOR environment variable.
9646 proc with_ansi_styling_terminal { body } {
9647 save_vars { ::env(TERM) ::env(NO_COLOR) } {
9648 # Set environment variables to allow styling.
9650 unset -nocomplain ::env(NO_COLOR)
9652 set code [catch {uplevel 1 $body} result]
9656 global errorInfo errorCode
9657 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
9659 return -code $code $result
9663 # Setup tuiterm.exp environment. To be used in test-cases instead of
9664 # "load_lib tuiterm.exp". Calls initialization function and schedules
9665 # finalization function.
9666 proc tuiterm_env { } {
9667 load_lib tuiterm.exp
9670 # Dejagnu has a version of note, but usage is not allowed outside of dejagnu.
9671 # Define a local version.
9672 proc gdb_note { message } {
9673 verbose -- "NOTE: $message" 0
9676 # Return 1 if compiler supports -fuse-ld=gold, otherwise return 0.
9677 gdb_caching_proc have_fuse_ld_gold {} {
9678 set me "have_fuse_ld_gold"
9679 set flags "additional_flags=-fuse-ld=gold"
9680 set src { int main() { return 0; } }
9681 return [gdb_simple_compile $me $src executable $flags]
9684 # Return 1 if compiler supports fvar-tracking, otherwise return 0.
9685 gdb_caching_proc have_fvar_tracking {} {
9686 set me "have_fvar_tracking"
9687 set flags "additional_flags=-fvar-tracking"
9688 set src { int main() { return 0; } }
9689 return [gdb_simple_compile $me $src executable $flags]
9692 # Return 1 if linker supports -Ttext-segment, otherwise return 0.
9693 gdb_caching_proc linker_supports_Ttext_segment_flag {} {
9694 set me "linker_supports_Ttext_segment_flag"
9695 set flags ldflags="-Wl,-Ttext-segment=0x7000000"
9696 set src { int main() { return 0; } }
9697 return [gdb_simple_compile $me $src executable $flags]
9700 # Return 1 if linker supports -Ttext, otherwise return 0.
9701 gdb_caching_proc linker_supports_Ttext_flag {} {
9702 set me "linker_supports_Ttext_flag"
9703 set flags ldflags="-Wl,-Ttext=0x7000000"
9704 set src { int main() { return 0; } }
9705 return [gdb_simple_compile $me $src executable $flags]
9708 # Return 1 if linker supports --image-base, otherwise 0.
9709 gdb_caching_proc linker_supports_image_base_flag {} {
9710 set me "linker_supports_image_base_flag"
9711 set flags ldflags="-Wl,--image-base=0x7000000"
9712 set src { int main() { return 0; } }
9713 return [gdb_simple_compile $me $src executable $flags]
9717 # Return 1 if compiler supports scalar_storage_order attribute, otherwise
9719 gdb_caching_proc supports_scalar_storage_order_attribute {} {
9720 set me "supports_scalar_storage_order_attribute"
9725 } __attribute__((scalar_storage_order("little-endian")));
9728 } __attribute__((scalar_storage_order("big-endian")));
9732 sle.v = sbe.v = 0x11223344;
9733 int same = memcmp (&sle, &sbe, sizeof (int)) == 0;
9738 if { ![gdb_simple_compile $me $src executable ""] } {
9742 set target_obj [gdb_remote_download target $obj]
9743 set result [remote_exec target $target_obj]
9744 set status [lindex $result 0]
9745 set output [lindex $result 1]
9746 if { $output != "" } {
9753 # Return 1 if compiler supports __GNUC__, otherwise return 0.
9754 gdb_caching_proc supports_gnuc {} {
9755 set me "supports_gnuc"
9761 return [gdb_simple_compile $me $src object ""]
9764 # Return 1 if target supports mpx, otherwise return 0.
9765 gdb_caching_proc have_mpx {} {
9769 if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
9770 verbose "$me: target does not support mpx, returning 0" 2
9774 # Compile a test program.
9776 #include "nat/x86-cpuid.h"
9779 unsigned int eax, ebx, ecx, edx;
9781 if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx))
9784 if ((ecx & bit_OSXSAVE) == bit_OSXSAVE)
9786 if (__get_cpuid_max (0, (void *)0) < 7)
9789 __cpuid_count (7, 0, eax, ebx, ecx, edx);
9791 if ((ebx & bit_MPX) == bit_MPX)
9798 set compile_flags "incdir=${srcdir}/.."
9799 if {![gdb_simple_compile $me $src executable $compile_flags]} {
9803 set target_obj [gdb_remote_download target $obj]
9804 set result [remote_exec target $target_obj]
9805 set status [lindex $result 0]
9806 set output [lindex $result 1]
9807 if { $output != "" } {
9811 remote_file build delete $obj
9813 if { $status == 0 } {
9814 verbose "$me: returning $status" 2
9818 # Compile program with -mmpx -fcheck-pointer-bounds, try to trigger
9819 # 'No MPX support
', in other words, see if kernel supports mpx.
9820 set src { int main (void) { return 0; } }
9822 append comp_flags " additional_flags=-mmpx"
9823 append comp_flags " additional_flags=-fcheck-pointer-bounds"
9824 if {![gdb_simple_compile $me-2 $src executable $comp_flags]} {
9828 set target_obj [gdb_remote_download target $obj]
9829 set result [remote_exec target $target_obj]
9830 set status [lindex $result 0]
9831 set output [lindex $result 1]
9832 set status [expr ($status == 0) \
9833 && ![regexp "^No MPX support\r?\n" $output]]
9835 remote_file build delete $obj
9837 verbose "$me: returning $status" 2
9841 # Return 1 if target supports avx, otherwise return 0.
9842 gdb_caching_proc have_avx {} {
9846 if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
9847 verbose "$me: target does not support avx, returning 0" 2
9851 # Compile a test program.
9853 #include "nat/x86-cpuid.h"
9856 unsigned int eax, ebx, ecx, edx;
9858 if (!x86_cpuid (1, &eax, &ebx, &ecx, &edx))
9861 if ((ecx & (bit_AVX | bit_OSXSAVE)) == (bit_AVX | bit_OSXSAVE))
9867 set compile_flags "incdir=${srcdir}/.."
9868 if {![gdb_simple_compile $me $src executable $compile_flags]} {
9872 set target_obj [gdb_remote_download target $obj]
9873 set result [remote_exec target $target_obj]
9874 set status [lindex $result 0]
9875 set output [lindex $result 1]
9876 if { $output != "" } {
9880 remote_file build delete $obj
9882 verbose "$me: returning $status" 2
9889 # ARG can either be a name, or of the form !NAME.
9891 # Each name is a proc to evaluate in the caller's
context. It can
return a
9892 #
boolean or a two element list with a
boolean and a reason string.
9893 # A
"!" means to invert the result. If this is true, all is well. If it is
9894 # false
, an
"unsupported" is emitted and this proc causes the caller to return.
9896 # The reason string is used to provide some
context about a require failure
,
9897 # and is included in the
"unsupported" message.
9899 proc require
{ args } {
9901 if {[string index $
arg 0] == "!"} {
9903 set fn
[string range $
arg 1 end
]
9909 set result
[uplevel
1 $fn
]
9910 set len
[llength $result
]
9912 set actual_val
[lindex $result
0]
9913 set msg
[lindex $result
1]
9914 } elseif
{ $len
== 1 } {
9915 set actual_val $result
9918 error
"proc $fn returned a list of unexpected length $len"
9921 if {$required_val
!= !!$actual_val
} {
9922 if { [string length $msg
] > 0 } {
9923 unsupported
"require failed: $arg ($msg)"
9925 unsupported
"require failed: $arg"
9928 return -code
return 0
9933 # Wait up to
::TIMEOUT
seconds for file PATH to exist
on the target
system.
9934 #
Return 1 if it does exist
, 0 otherwise.
9936 proc target_file_exists_with_timeout
{ path
} {
9937 for {set i
0} {$i
< $
::timeout
} {incr i
} {
9938 if { [remote_file target
exists $path
] } {
9948 gdb_caching_proc has_hw_wp_support
{} {
9949 # Power
9, proc rev
2.2 does not support HW watchpoints due to HW bug.
9950 # Need to use a runtime test to determine
if the Power processor has
9951 # support
for HW watchpoints.
9952 global srcdir subdir gdb_prompt inferior_exited_re
9954 set me
"has_hw_wp_support"
9957 if { [info exists gdb_spawn_id
] } {
9958 error
"$me called with running gdb instance"
9961 set compile_flags
{debug nowarnings quiet
}
9963 #
Compile a test
program to test
if HW watchpoints are supported
9974 if {![gdb_simple_compile $me $src executable $compile_flags
]} {
9979 gdb_reinitialize_dir $srcdir
/$subdir
9984 remote_file build
delete $
obj
9986 set has_hw_wp_support
0
9987 return $has_hw_wp_support
9990 # The goal is to determine
if HW watchpoints are available in general.
9991 # Use
"watch" and then check if gdb responds with hardware watch point.
9992 set test
"watch local"
9994 gdb_test_multiple $test
"Check for HW watchpoint support" {
9995 -re
".*Hardware watchpoint.*" {
9996 # HW watchpoint supported by platform
9997 verbose
-log "\n$me: Hardware watchpoint detected"
9998 set has_hw_wp_support
1
10000 -re
".*$gdb_prompt $" {
10001 set has_hw_wp_support
0
10002 verbose
-log "\n$me: Default, hardware watchpoint not deteced"
10007 remote_file build
delete $
obj
10009 verbose
"$me: returning $has_hw_wp_support" 2
10010 return $has_hw_wp_support
10013 #
Return a list of all the accepted
values of the
set command
10014 #
"SET_CMD SET_ARG".
10015 #
For example get_set_option_choices
"set architecture" "i386".
10017 proc get_set_option_choices
{ set_cmd
{set_arg
""} } {
10020 if { $set_arg
== "" } {
10021 # Add trailing space to
signal that we need completion of the choices
,
10022 # not of set_cmd itself.
10023 set cmd
"complete $set_cmd "
10025 set cmd
"complete $set_cmd $set_arg"
10028 #
Set test
name without trailing space.
10029 set test
[string trim $cmd
]
10031 with_set
max-completions unlimited
{
10032 gdb_test_multiple $cmd $test
{
10033 -re
"^[string_to_regexp $cmd]\r\n" {
10037 -re
"^$set_cmd (\[^\r\n\]+)\r\n" {
10038 lappend
values $expect_out
(1,string
)
10042 -re
"^$::gdb_prompt $" {
10043 pass $gdb_test_name
10051 #
Return the compiler that can generate
32-bit ARM executables. Used
10052 # when testing biarch support
on Aarch64.
If ARM_CC_FOR_TARGET is
10053 #
set, use that.
If not
, try a few common compiler names
, making sure
10054 # that the executable they produce can run.
10056 gdb_caching_proc arm_cc_for_target
{} {
10057 if {[info exists ::ARM_CC_FOR_TARGET
]} {
10058 #
If the user specified the compiler explicitly
, then don
't
10059 # check whether the resulting binary runs outside GDB. Assume
10060 # that it does, and if it turns out it doesn't
, then the user
10061 # should
get loud FAILs
, instead of UNSUPPORTED.
10062 return $
::ARM_CC_FOR_TARGET
10065 # Fallback to a few common compiler names. Also confirm the
10066 # produced binary actually runs
on the
system before declaring
10067 # we
've found the right compiler.
10069 if [istarget "*-linux*-*"] {
10071 arm-linux-gnueabi-gcc
10072 arm-none-linux-gnueabi-gcc
10073 arm-linux-gnueabihf-gcc
10079 foreach compiler $compilers {
10080 if {![is_remote host] && [which $compiler] == 0} {
10081 # Avoid "default_target_compile: Can't find
10082 # $compiler.
" warning issued from gdb_compile.
10086 set src
{ int main
() { return 0; } }
10087 if {[gdb_simple_compile aarch64
-32bit \
10089 executable
[list compiler
=$compiler
]]} {
10091 set target_obj
[gdb_remote_download target $
obj]
10092 set result
[remote_exec target $target_obj
]
10093 set status [lindex $result
0]
10094 set output
[lindex $result
1]
10098 if { $output
== "" && $status == 0} {
10107 # Step until the pattern REGEXP is found. Step at most
10108 # MAX_STEPS times
, but stop stepping once REGEXP is found.
10109 # CURRENT matches current location
10110 #
If REGEXP is found
then a single pass is emitted
, otherwise
, after
10111 # MAX_STEPS steps
, a single fail is emitted.
10113 # TEST_NAME is the
name used in the pass
/fail calls.
10115 proc gdb_step_until
{ regexp
{test_name
"stepping until regexp"} \
10116 {current
"\}"} { max_steps 10 } } {
10117 repeat_cmd_until
"step" $current $regexp $test_name "10"
10120 #
Do repeated stepping COMMANDs in order to reach TARGET from CURRENT
10122 # COMMAND is a stepping command
10123 # CURRENT is a string matching the current location
10124 # TARGET is a string matching the target location
10125 # TEST_NAME is the test
name
10126 # MAX_STEPS is number of steps attempted before fail is emitted
10128 # The function issues repeated COMMANDs as long as the location matches
10129 # CURRENT up to a maximum of MAX_STEPS.
10131 # TEST_NAME passes
if the resulting location matches TARGET and fails
10134 proc repeat_cmd_until
{ command current target \
10135 {test_name
"stepping until regexp"} \
10136 {max_steps
100} } {
10140 gdb_test_multiple
"$command" "$test_name" {
10141 -re
"$target.*$gdb_prompt $" {
10144 -re
"$current.*$gdb_prompt $" {
10146 if { $
count < $max_steps
} {
10147 send_gdb
"$command\n"
10156 #
Return false
if the current target is not operating in non
-stop
10157 #
mode, otherwise
, return true.
10159 # The inferior will need to have started running in order to
get the
10162 proc is_target_non_stop
{ {testname
""} } {
10163 #
For historical reasons we assume non
-stop
mode is
on.
If the
10164 # maintenance command fails
for any reason
then we
're going to
10166 set is_non_stop true
10167 gdb_test_multiple "maint show target-non-stop" $testname {
10168 -wrap -re "(is|currently) on.*" {
10169 set is_non_stop true
10171 -wrap -re "(is|currently) off.*" {
10172 set is_non_stop false
10175 return $is_non_stop
10178 # Return the number of worker threads that GDB is currently using.
10180 proc gdb_get_worker_threads { {testname ""} } {
10181 set worker_threads "UNKNOWN"
10182 gdb_test_multiple "maintenance show worker-threads" $testname {
10183 -wrap -re "^The number of worker threads GDB can use is the default \\(currently ($::decimal)\\)\\." {
10184 set worker_threads $expect_out(1,string)
10186 -wrap -re "^The number of worker threads GDB can use is ($::decimal)\\." {
10187 set worker_threads $expect_out(1,string)
10190 return $worker_threads
10193 # Check if the compiler emits epilogue information associated
10194 # with the closing brace or with the last statement line.
10196 # This proc restarts GDB
10198 # Returns True if it is associated with the closing brace,
10199 # False if it is the last statement
10200 gdb_caching_proc have_epilogue_line_info {} {
10209 if {![gdb_simple_compile "simple_program" $main]} {
10215 gdb_test_multiple "info line 6" "epilogue test" {
10216 -re -wrap ".*starts at address.*and ends at.*" {
10225 # Decompress file BZ2, and return it.
10227 proc decompress_bz2 { bz2 } {
10228 set copy [standard_output_file [file tail $bz2]]
10229 set copy [remote_download build $bz2 $copy]
10230 if { $copy == "" } {
10234 set res [remote_exec build "bzip2" "-df $copy"]
10235 if { [lindex $res 0] == -1 } {
10239 set copy [regsub {.bz2$} $copy ""]
10240 if { ![remote_file build exists $copy] } {
10247 # Return 1 if the output of "ldd FILE" contains regexp DEP, 0 if it doesn't
,
10248 # and
-1 if there was a problem running the command.
10250 proc has_dependency
{ file dep
} {
10251 set ldd
[gdb_find_ldd
]
10252 set command
"$ldd $file"
10253 set result
[remote_exec host $command
]
10254 set status [lindex $result
0]
10255 set output
[lindex $result
1]
10256 verbose
-log "status of $command is $status"
10257 verbose
-log "output of $command is $output"
10258 if { $
status != 0 || $output
== "" } {
10261 return [regexp $dep $output
]
10264 # Detect linux kernel version and
return as list of
3 numbers
: major
, minor
,
10265 # and patchlevel.
On failure
, return an empty list.
10267 gdb_caching_proc linux_kernel_version
{} {
10268 if { ![istarget
*-*-linux
*] } {
10272 set res
[remote_exec target
"uname -r"]
10273 set status [lindex $res
0]
10274 set output
[lindex $res
1]
10275 if { $
status != 0 } {
10279 set re ^
($
::decimal
)\\.
($
::decimal
)\\.
($
::decimal
)
10280 if { [regexp $re $output dummy v1 v2 v3
] != 1 } {
10284 return [list $v1 $v2 $v3
]
10287 #
Return 1 if syscall
NAME is supported.
10289 proc have_syscall
{ name } {
10292 "#include <sys/syscall.h>" \
10293 "int var = SYS_$name;"]
10294 set src
[join $src
"\n"]
10295 return [gdb_can_simple_compile have_syscall_$
name $src object
]
10298 #
Return 1 if compile flag FLAG is supported.
10300 gdb_caching_proc have_compile_flag
{ flag
} {
10301 set src
{ void foo
() {} }
10302 return [gdb_can_simple_compile have_compile_flag_$flag $src object \
10303 additional_flags
=$flag
]
10306 #
Return 1 if we can create an executable using
compile and link flag FLAG.
10308 gdb_caching_proc have_compile_and_link_flag
{ flag
} {
10309 set src
{ int main
() { return 0; } }
10310 return [gdb_can_simple_compile have_compile_and_link_flag_$flag $src executable \
10311 additional_flags
=$flag
]
10314 #
Return 1 if this GDB is configured with a
"native" target.
10316 gdb_caching_proc have_native_target
{} {
10317 gdb_test_multiple
"help target native" "" {
10318 -re
-wrap
"Undefined target command.*" {
10321 -re
-wrap
"Native process.*" {
10328 # Handle
include file $srcdir
/$subdir
/FILE.
10330 proc include_file
{ file
} {
10331 set file
[file join $
::srcdir $
::subdir $file
]
10332 if { [is_remote host
] } {
10333 set res
[remote_download host $file
]
10341 # Handle
include file FILE
, and
if necessary
update compiler flags
variable
10344 proc lappend_include_file
{ flags file
} {
10345 upvar $flags up_flags
10346 if { [is_remote host
] } {
10347 gdb_remote_download host $file
10349 set dir [file dirname $file
]
10350 if { $
dir != [file join $
::srcdir $
::subdir
] } {
10351 lappend up_flags
"additional_flags=-I$dir"
10356 #
Return a list of supported host locales.
10358 gdb_caching_proc host_locales
{ } {
10359 set result
[remote_exec host
"locale -a"]
10360 set status [lindex $result
0]
10361 set output
[lindex $result
1]
10363 if { $
status != 0 } {
10368 set output
[string trim $output
]
10369 set l
[split $output
\n]
10372 set l
[lmap v $l
{ string trim $v
}]
10374 # Normalize items to lower
-case.
10375 set l
[lmap v $l
{ string tolower $v
}]
10376 # Normalize items to without dash.
10377 set l
[lmap v $l
{ string map
{ "-" "" } $v }]
10382 #
Return 1 if host locale LOCALE is supported.
10384 proc have_host_locale
{ locale
} {
10385 # Normalize to lower
-case.
10386 set locale
[string tolower $locale
]
10387 # Normalize to without dash.
10388 set locale
[string map
{ "-" "" } $locale]
10390 set idx
[lsearch
[host_locales
] $locale
]
10391 return [expr $idx
!= -1]
10394 #
Return 1 if we can use
'#include <$file>' in source file.
10396 gdb_caching_proc have_system_header
{ file
} {
10397 set src
"#include <$file>"
10398 set name [string map
{ "/" "_sep_" } $file]
10399 return [gdb_can_simple_compile have_system_header_$
name $src object
]
10402 #
Return 1 if the test is being run as root
, 0 otherwise.
10404 gdb_caching_proc root_user
{} {
10405 # ID outputs to stdout
, we have to use exec to capture it here.
10406 set res
[remote_exec target id
]
10407 set ret_val
[lindex $res
0]
10408 set output
[lindex $res
1]
10410 #
If ret_val is not
0, we couldn
't run `id` on the target for some
10411 # reason. Return that we are not root, so problems are easier to
10413 if { $ret_val != 0 } {
10417 regexp -all ".*uid=(\[0-9\]+).*" $output dummy uid
10419 return [expr $uid == 0]
10422 # Always load compatibility stuff.
10423 load_lib future.exp