1 # Copyright
(C
) 1999, 2001, 2003, 2004, 2005, 2006, 2007
2 # Free Software Foundation
, Inc.
4 # This
program is free software
; you can redistribute it and
/or modify
5 # it under the terms of the GNU General Public License as published by
6 # the Free Software Foundation
; either version
2 of the License
, or
7 #
(at your option
) any later version.
9 # This
program is distributed in the hope that it will be useful
,
10 # but WITHOUT
ANY WARRANTY
; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License
for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this
program; if not
, write to the Free Software
16 # Foundation
, Inc.
, 51 Franklin Street
, Fifth Floor
, Boston
, MA
02110-1301, USA.
18 # Please email
any bugs
, comments
, and
/or additions to this file to
:
19 # gcc
-patches@gcc.gnu.org
21 # This file defines procs
for determining features supported by the target.
23 # Try to
compile some code and
return the messages printed by the compiler
,
24 # and optionally the contents
for assembly files. Either a string or
25 # a list of two strings are returned
, depending
on WANT_OUTPUT.
27 # BASENAME is a basename to use
for temporary files.
28 # WANT_OUTPUT is a flag which is
0 to request returning just the
29 # compiler messages
, or
1 to
return the messages and the contents
30 # of the assembly file. TYPE should be
"assembly" if WANT_OUTPUT
32 # TYPE is the type of compilation to perform
(see target_compile
).
33 # CONTENTS gives the contents of the input file.
34 # The rest is optional
:
35 # OPTIONS
: additional compiler options to use.
36 proc get_compiler_messages
{basename want_output type contents
args} {
39 if { [llength $
args] > 0 } {
40 set options
[list
"additional_flags=[lindex $args 0]"]
45 set src $
{basename
}[pid
].c
47 assembly
{ set output $
{basename
}[pid
].s
}
48 object
{ set output $
{basename
}[pid
].o
}
53 set lines
[$
{tool
}_target_compile $src $output $type
"$options"]
57 if { $type
!= "assembly" } {
58 error
"WANT_OUTPUT can only be used with assembly output"
59 } elseif
{ ![string match
"" $lines] } {
61 set result
[list $lines
""]
64 set chan
[open
"$output"]
65 while {[gets $chan line
] >= 0} {
69 set result
[list $lines $
text]
75 remote_file build
delete $output
79 proc current_target_name
{ } {
81 if [info exists target_info
(target
,name)] {
82 set answer $target_info
(target
,name)
89 # Implement an effective
-target check
for property PROP by invoking
90 # the compiler and seeing
if it prints
any messages. Assume that the
91 #
property holds
if the compiler doesn
't print anything. The other
92 # arguments are as for get_compiler_messages, starting with TYPE.
93 proc check_no_compiler_messages {prop args} {
96 set target [current_target_name]
97 if {![info exists et_cache($prop,target)]
98 || $et_cache($prop,target) != $target} {
99 verbose "check_no_compiler_messages $prop: compiling source for $target" 2
100 set et_cache($prop,target) $target
101 set et_cache($prop,value) \
102 [string match "" [eval get_compiler_messages $prop 0 $args]]
104 set value $et_cache($prop,value)
105 verbose "check_no_compiler_messages $prop: returning $value for $target" 2
109 # Similar to check_no_compiler_messages, but also verify that the regular
110 # expression PATTERN matches the compiler's output.
111 proc check_no_messages_and_pattern
{prop pattern
args} {
114 set target
[current_target_name
]
115 if {![info exists et_cache
($prop
,target
)]
116 || $et_cache
($prop
,target
) != $target
} {
117 verbose
"check_no_messages_and_pattern $prop: compiling source for $target" 2
118 set et_cache
($prop
,target
) $target
119 set results
[eval get_compiler_messages $prop
1 $
args]
120 set et_cache
($prop
,value
) \
121 [expr
[string match
"" [lindex $results 0]] \
122 && [regexp $pattern
[lindex $results
1]]]
124 set value $et_cache
($prop
,value
)
125 verbose
"check_no_messages_and_pattern $prop: returning $value for $target" 2
129 ###############################
130 # proc check_weak_available
{ }
131 ###############################
133 # weak symbols are only supported in some configs
/object formats
134 # this proc returns
1 if they
're supported, 0 if they're not
, or
-1 if unsure
136 proc check_weak_available
{ } {
137 global target_triplet
140 # All mips targets should support it
142 if { [ string first
"mips" $target_cpu ] >= 0 } {
146 # All solaris2 targets should support it
148 if { [regexp
".*-solaris2.*" $target_triplet] } {
152 # DEC OSF
/1/Digital UNIX
/Tru64 UNIX supports it
154 if { [regexp
"alpha.*osf.*" $target_triplet] } {
158 # Windows targets Cygwin and MingW32 support it
160 if { [regexp
".*mingw32|.*cygwin" $target_triplet] } {
164 # HP
-UX
10.X doesn
't support it
166 if { [istarget "hppa*-*-hpux10*"] } {
170 # ELF and ECOFF support it. a.out does with gas/gld but may also with
171 # other linkers, so we should try it
173 set objformat [gcc_target_object_format]
181 unknown { return -1 }
186 ###############################
187 # proc check_visibility_available { what_kind }
188 ###############################
190 # The visibility attribute is only support in some object formats
191 # This proc returns 1 if it is supported, 0 if not.
192 # The argument is the kind of visibility, default/protected/hidden/internal.
194 proc check_visibility_available { what_kind } {
196 global target_triplet
198 # On NetWare, support makes no sense.
199 if { [istarget *-*-netware*] } {
203 if [string match "" $what_kind] { set what_kind "hidden" }
205 return [check_no_compiler_messages visibility_available_$what_kind object "
206 void f() __attribute__((visibility(\"$what_kind\")));
211 ###############################
212 # proc check_alias_available { }
213 ###############################
215 # Determine if the target toolchain supports the alias attribute.
217 # Returns 2 if the target supports aliases. Returns 1 if the target
218 # only supports weak aliased. Returns 0 if the target does not
219 # support aliases at all. Returns -1 if support for aliases could not
222 proc check_alias_available { } {
223 global alias_available_saved
226 if [info exists alias_available_saved] {
227 verbose "check_alias_available returning saved $alias_available_saved" 2
231 verbose "check_alias_available compiling testfile $src" 2
232 set f [open $src "w"]
233 # Compile a small test program. The definition of "g" is
234 # necessary to keep the Solaris assembler from complaining
236 puts $f "#ifdef __cplusplus\nextern \"C\"\n#endif\n"
237 puts $f "void g() {} void f() __attribute__((alias(\"g\")));"
239 set lines [${tool}_target_compile $src $obj object ""]
241 remote_file build delete $obj
243 if [string match "" $lines] then {
244 # No error messages, everything is OK.
245 set alias_available_saved 2
247 if [regexp "alias definitions not supported" $lines] {
248 verbose "check_alias_available target does not support aliases" 2
250 set objformat [gcc_target_object_format]
252 if { $objformat == "elf" } {
253 verbose "check_alias_available but target uses ELF format, so it ought to" 2
254 set alias_available_saved -1
256 set alias_available_saved 0
259 if [regexp "only weak aliases are supported" $lines] {
260 verbose "check_alias_available target supports only weak aliases" 2
261 set alias_available_saved 1
263 set alias_available_saved -1
268 verbose "check_alias_available returning $alias_available_saved" 2
271 return $alias_available_saved
274 # Returns true if --gc-sections is supported on the target.
276 proc check_gc_sections_available { } {
277 global gc_sections_available_saved
280 if {![info exists gc_sections_available_saved]} {
281 # Some targets don't support gc
-sections despite whatever
's
282 # advertised by ld's options.
283 if { [istarget alpha
*-*-*]
284 ||
[istarget ia64
-*-*] } {
285 set gc_sections_available_saved
0
289 # Check
if the
ld used by gcc supports
--gc
-sections.
290 set gcc_spec
[$
{tool
}_target_compile
"-dumpspecs" "" "none" ""]
291 regsub
".*\n\*linker:\[ \t\]*\n(\[^ \t\n\]*).*" "$gcc_spec" {\1} linker
292 set gcc_ld
[lindex
[$
{tool
}_target_compile
"-print-prog-name=$linker" "" "none" ""] 0]
293 set ld_output
[remote_exec host
"$gcc_ld" "--help"]
294 if { [ string first
"--gc-sections" $ld_output ] >= 0 } {
295 set gc_sections_available_saved
1
297 set gc_sections_available_saved
0
300 return $gc_sections_available_saved
303 #
Return true
if profiling is supported
on the target.
305 proc check_profiling_available
{ test_what
} {
306 global profiling_available_saved
308 verbose
"Profiling argument is <$test_what>" 1
310 # These conditions depend
on the
argument so examine them before
311 # looking at the
cache variable.
313 # Support
for -p
on solaris2 relies
on mcrt1.o which comes with the
314 # vendor compiler. We cannot reliably predict the directory where the
315 # vendor compiler
(and thus mcrt1.o
) is installed so we can
't
316 # necessarily find mcrt1.o even if we have it.
317 if { [istarget *-*-solaris2*] && [lindex $test_what 1] == "-p" } {
321 # Support for -p on irix relies on libprof1.a which doesn't appear to
322 # exist
on any irix6
system currently posting testsuite results.
323 # Support
for -pg
on irix relies
on gcrt1.o which doesn
't exist yet.
324 # See: http://gcc.gnu.org/ml/gcc/2002-10/msg00169.html
325 if { [istarget mips*-*-irix*]
326 && ([lindex $test_what 1] == "-p" || [lindex $test_what 1] == "-pg") } {
330 # At present, there is no profiling support on NetWare.
331 if { [istarget *-*-netware*] } {
335 # Now examine the cache variable.
336 if {![info exists profiling_available_saved]} {
337 # Some targets don't have
any implementation of __bb_init_func or are
338 # missing other needed machinery.
339 if { [istarget mmix
-*-*]
340 ||
[istarget arm
*-*-eabi
*]
341 ||
[istarget arm
*-*-elf
]
342 ||
[istarget arm
*-*-symbianelf
*]
343 ||
[istarget bfin
-*-*]
344 ||
[istarget powerpc
-*-eabi
*]
345 ||
[istarget strongarm
*-*-elf
]
346 ||
[istarget xscale
*-*-elf
]
347 ||
[istarget cris
-*-*]
348 ||
[istarget h8300
-*-*]
349 ||
[istarget m32c
-*-elf
]
350 ||
[istarget m68k
-*-elf
]
351 ||
[istarget mips
*-*-elf
]
352 ||
[istarget xtensa
-*-elf
]
353 ||
[istarget
*-*-windiss
] } {
354 set profiling_available_saved
0
356 set profiling_available_saved
1
360 return $profiling_available_saved
363 #
Return 1 if target has packed layout of structure members by
364 # default
, 0 otherwise. Note that this is slightly different than
365 # whether the target has
"natural alignment": both attributes may be
368 proc check_effective_target_default_packed
{ } {
369 return [check_no_compiler_messages default_packed assembly
{
370 struct x
{ char a
; long b
; } c
;
371 int s
[sizeof
(c
) == sizeof
(char
) + sizeof
(long
) ?
1 : -1];
375 #
Return 1 if target has PCC_BITFIELD_TYPE_MATTERS defined. See
376 # documentation
, where the test also comes from.
378 proc check_effective_target_pcc_bitfield_type_matters
{ } {
379 # PCC_BITFIELD_TYPE_MATTERS isn
't just about unnamed or empty
380 # bitfields, but let's stick to the example code from the docs.
381 return [check_no_compiler_messages pcc_bitfield_type_matters assembly
{
382 struct foo1
{ char x
; char
:0; char y
; };
383 struct foo2
{ char x
; int :0; char y
; };
384 int s
[sizeof
(struct foo1
) != sizeof
(struct foo2
) ?
1 : -1];
388 #
Return 1 if *native
* thread local storage
(TLS
) is supported
, 0 otherwise.
390 # This won
't change for different subtargets so cache the result.
392 proc check_effective_target_tls {} {
396 if [info exists et_tls_saved] {
397 verbose "check_effective_target_tls: using cached result" 2
403 verbose "check_effective_target_tls: compiling testfile $src" 2
404 set f [open $src "w"]
405 # Compile a small test program.
406 puts $f "__thread int i;\n"
409 # Test for thread-local data supported by the platform.
410 set comp_output [${tool}_target_compile $src $asm assembly ""]
412 if { [string match "*not supported*" $comp_output] } {
418 if { [string match "*emutls*" $text]} {
424 remove-build-file $asm
426 verbose "check_effective_target_tls: returning $et_tls_saved" 2
430 # Return 1 if TLS executables can run correctly, 0 otherwise.
432 # This won't change
for different subtargets so
cache the result.
434 proc check_effective_target_tls_runtime
{} {
435 global et_tls_runtime_saved
438 if [info exists et_tls_runtime_saved
] {
439 verbose
"check_effective_target_tls_runtime: using cached result" 2
441 set et_tls_runtime_saved
0
443 set src tls_runtime
[pid
].c
444 set exe tls_runtime
[pid
].x
445 verbose
"check_effective_target_tls_runtime: compiling testfile $src" 2
446 set f
[open $src
"w"]
447 #
Compile a small test
program.
448 puts $f
"__thread int thr = 0;\n"
449 puts $f
"int main(void)\n {\n return thr;\n}"
453 [$
{tool
}_target_compile $src $exe executable
""]
456 if [string match
"" $comp_output] then {
457 # No error messages
, everything is OK.
459 set result
[remote_load target
"./$exe" "" ""]
460 set status [lindex $result
0]
461 remote_file build
delete $exe
463 verbose
"check_effective_target_tls_runtime status is <$status>" 2
465 if { $
status == "pass" } {
466 set et_tls_runtime_saved
1
469 verbose
"check_effective_target_tls_runtime: returning $et_tls_runtime_saved" 2
473 return $et_tls_runtime_saved
476 #
Return 1 if compilation with
-fopenmp is error
-free
for trivial
479 proc check_effective_target_fopenmp
{} {
480 return [check_no_compiler_messages fopenmp object
{
485 #
Return 1 if compilation with
-freorder
-blocks
-and
-partition is error
-free
486 #
for trivial code
, 0 otherwise.
488 proc check_effective_target_freorder
{} {
489 return [check_no_compiler_messages freorder object
{
491 } "-freorder-blocks-and-partition"]
494 #
Return 1 if -fpic and
-fPIC are supported
, as in no warnings or errors
495 # emitted
, 0 otherwise. Whether a shared library can actually be built is
496 # out of scope
for this test.
498 proc check_effective_target_fpic
{ } {
499 # Note that M68K has a multilib that supports
-fpic but not
500 #
-fPIC
, so we need to check both. We test with a
program that
501 # requires GOT references.
502 foreach
arg {fpic fPIC
} {
503 if [check_no_compiler_messages $
arg object
{
504 extern
int foo
(void
); extern
int bar
;
505 int baz
(void
) { return foo
() + bar
; }
513 #
Return true
if the target supports
-mpaired
-single
(as used
on MIPS
).
515 proc check_effective_target_mpaired_single
{ } {
516 return [check_no_compiler_messages mpaired_single object
{
521 #
Return 1 if the target does not use a
status wrapper.
523 proc check_effective_target_unwrapped
{ } {
524 if { [target_info needs_status_wrapper
] != "" \
525 && [target_info needs_status_wrapper
] != "0" } {
531 #
Return true
if iconv is supported
on the target. In particular IBM1047.
533 proc check_iconv_available
{ test_what
} {
541 verbose
"check_iconv_available compiling testfile $src" 2
542 set f
[open $src
"w"]
543 #
Compile a small test
program.
544 puts $f
"#include <iconv.h>\n"
545 puts $f
"int main (void)\n {\n iconv_t cd; \n"
546 puts $f
"cd = iconv_open (\"[lindex $test_what 1]\", \"UTF-8\");\n"
547 puts $f
"if (cd == (iconv_t) -1)\n return 1;\n"
548 puts $f
"return 0;\n}"
551 #
If the tool configuration file has not
set libiconv
, try
"-liconv"
552 if { ![info exists libiconv
] } {
553 set libiconv
"-liconv"
555 set lines
[$
{tool
}_target_compile $src $exe executable
"libs=$libiconv" ]
558 if [string match
"" $lines] then {
559 # No error messages
, everything is OK.
561 set result
[$
{tool
}_load
"./$exe" "" ""]
562 set status [lindex $result
0]
563 remote_file build
delete $exe
565 verbose
"check_iconv_available status is <$status>" 2
567 if { $
status == "pass" } then {
575 #
Return true
if named sections are supported
on this target.
577 proc check_named_sections_available
{ } {
578 return [check_no_compiler_messages named_sections assembly
{
579 int __attribute__
((section
("whatever"))) foo;
583 #
Return 1 if the target supports Fortran real kinds larger than real
(8),
586 # When the target
name changes
, replace the cached result.
588 proc check_effective_target_fortran_large_real
{ } {
589 global et_fortran_large_real_saved
590 global et_fortran_large_real_target_name
593 if { ![info exists et_fortran_large_real_target_name
] } {
594 set et_fortran_large_real_target_name
""
597 #
If the target has changed since we
set the cached value
, clear it.
598 set current_target
[current_target_name
]
599 if { $current_target
!= $et_fortran_large_real_target_name
} {
600 verbose
"check_effective_target_fortran_large_real: `$et_fortran_large_real_target_name' `$current_target'" 2
601 set et_fortran_large_real_target_name $current_target
602 if [info exists et_fortran_large_real_saved
] {
603 verbose
"check_effective_target_fortran_large_real: removing cached result" 2
604 unset et_fortran_large_real_saved
608 if [info exists et_fortran_large_real_saved
] {
609 verbose
"check_effective_target_fortran_large_real returning saved $et_fortran_large_real_saved" 2
611 set et_fortran_large_real_saved
0
613 #
Set up
, compile, and
execute a test
program using large real
614 # kinds.
Include the current process ID in the file names to
615 # prevent conflicts with invocations
for multiple testsuites.
616 set src real
[pid
].f90
619 set f
[open $src
"w"]
620 puts $f
"integer,parameter :: k = &"
621 puts $f
" selected_real_kind (precision (0.0_8) + 1)"
622 puts $f
"real(kind=k) :: x"
623 puts $f
"x = cos (x);"
627 verbose
"check_effective_target_fortran_large_real compiling testfile $src" 2
628 set lines
[$
{tool
}_target_compile $src $exe executable
""]
631 if [string match
"" $lines] then {
632 # No error message
, compilation succeeded.
633 set et_fortran_large_real_saved
1
637 return $et_fortran_large_real_saved
640 #
Return 1 if the target supports Fortran
integer kinds larger than
641 #
integer(8), 0 otherwise.
643 # When the target
name changes
, replace the cached result.
645 proc check_effective_target_fortran_large_int
{ } {
646 global et_fortran_large_int_saved
647 global et_fortran_large_int_target_name
650 if { ![info exists et_fortran_large_int_target_name
] } {
651 set et_fortran_large_int_target_name
""
654 #
If the target has changed since we
set the cached value
, clear it.
655 set current_target
[current_target_name
]
656 if { $current_target
!= $et_fortran_large_int_target_name
} {
657 verbose
"check_effective_target_fortran_large_int: `$et_fortran_large_int_target_name' `$current_target'" 2
658 set et_fortran_large_int_target_name $current_target
659 if [info exists et_fortran_large_int_saved
] {
660 verbose
"check_effective_target_fortran_large_int: removing cached result" 2
661 unset et_fortran_large_int_saved
665 if [info exists et_fortran_large_int_saved
] {
666 verbose
"check_effective_target_fortran_large_int returning saved $et_fortran_large_int_saved" 2
668 set et_fortran_large_int_saved
0
670 #
Set up
, compile, and
execute a test
program using large
integer
671 # kinds.
Include the current process ID in the file names to
672 # prevent conflicts with invocations
for multiple testsuites.
676 set f
[open $src
"w"]
677 puts $f
"integer,parameter :: k = &"
678 puts $f
" selected_int_kind (range (0_8) + 1)"
679 puts $f
"integer(kind=k) :: i"
683 verbose
"check_effective_target_fortran_large_int compiling testfile $src" 2
684 set lines
[$
{tool
}_target_compile $src $exe executable
""]
687 if [string match
"" $lines] then {
688 # No error message
, compilation succeeded.
689 set et_fortran_large_int_saved
1
693 return $et_fortran_large_int_saved
696 #
Return 1 if we can statically link libgfortran
, 0 otherwise.
698 # When the target
name changes
, replace the cached result.
700 proc check_effective_target_static_libgfortran
{ } {
701 global et_static_libgfortran
702 global et_static_libgfortran_target_name
705 if { ![info exists et_static_libgfortran_target_name
] } {
706 set et_static_libgfortran_target_name
""
709 #
If the target has changed since we
set the cached value
, clear it.
710 set current_target
[current_target_name
]
711 if { $current_target
!= $et_static_libgfortran_target_name
} {
712 verbose
"check_effective_target_static_libgfortran: `$et_static_libgfortran_target_name' `$current_target'" 2
713 set et_static_libgfortran_target_name $current_target
714 if [info exists et_static_libgfortran_saved
] {
715 verbose
"check_effective_target_static_libgfortran: removing cached result" 2
716 unset et_static_libgfortran_saved
720 if [info exists et_static_libgfortran_saved
] {
721 verbose
"check_effective_target_static_libgfortran returning saved $et_static_libgfortran_saved" 2
723 set et_static_libgfortran_saved
0
725 #
Set up
, compile, and
execute a test
program using static linking.
726 #
Include the current process ID in the file names to prevent
727 # conflicts with invocations
for multiple testsuites.
728 set opts
"additional_flags=-static"
729 set src static
[pid
].f
730 set exe static
[pid
].x
732 set f
[open $src
"w"]
733 puts $f
" print *, 'test'"
737 verbose
"check_effective_target_static_libgfortran compiling testfile $src" 2
738 set lines
[$
{tool
}_target_compile $src $exe executable
"$opts"]
741 if [string match
"" $lines] then {
742 # No error message
, compilation succeeded.
743 set et_static_libgfortran_saved
1
747 return $et_static_libgfortran_saved
750 #
Return 1 if the target supports executing AltiVec instructions
, 0
751 # otherwise.
Cache the result.
753 proc check_vmx_hw_available
{ } {
754 global vmx_hw_available_saved
757 if [info exists vmx_hw_available_saved
] {
758 verbose
"check_hw_available returning saved $vmx_hw_available_saved" 2
760 set vmx_hw_available_saved
0
762 # Some simulators are known to not support VMX instructions.
763 if { [istarget powerpc
-*-eabi
] ||
[istarget powerpc
*-*-eabispe
] } {
764 verbose
"check_hw_available returning 0" 2
765 return $vmx_hw_available_saved
768 #
Set up
, compile, and
execute a test
program containing VMX
769 # instructions.
Include the current process ID in the file
770 # names to prevent conflicts with invocations
for multiple
775 set f
[open $src
"w"]
776 puts $f
"int main() {"
777 puts $f
"#ifdef __MACH__"
778 puts $f
" asm volatile (\"vor v0,v0,v0\");"
780 puts $f
" asm volatile (\"vor 0,0,0\");"
782 puts $f
" return 0; }"
785 # Most targets don
't require special flags for this test case, but
787 if [istarget *-*-darwin*] {
788 set opts "additional_flags=-maltivec"
793 verbose "check_vmx_hw_available compiling testfile $src" 2
794 set lines [${tool}_target_compile $src $exe executable "$opts"]
797 if [string match "" $lines] then {
798 # No error message, compilation succeeded.
799 set result [${tool}_load "./$exe" "" ""]
800 set status [lindex $result 0]
801 remote_file build delete $exe
802 verbose "check_vmx_hw_available testfile status is <$status>" 2
804 if { $status == "pass" } then {
805 set vmx_hw_available_saved 1
808 verbose "check_vmx_hw_availalble testfile compilation failed" 2
812 return $vmx_hw_available_saved
815 # GCC 3.4.0 for powerpc64-*-linux* included an ABI fix for passing
816 # complex float arguments. This affects gfortran tests that call cabsf
817 # in libm built by an earlier compiler. Return 1 if libm uses the same
818 # argument passing as the compiler under test, 0 otherwise.
820 # When the target name changes, replace the cached result.
822 proc check_effective_target_broken_cplxf_arg { } {
823 global et_broken_cplxf_arg_saved
824 global et_broken_cplxf_arg_target_name
827 # Skip the work for targets known not to be affected.
828 if { ![istarget powerpc64-*-linux*] } {
830 } elseif { [is-effective-target ilp32] } {
834 if { ![info exists et_broken_cplxf_arg_target_name] } {
835 set et_broken_cplxf_arg_target_name ""
838 # If the target has changed since we set the cached value, clear it.
839 set current_target [current_target_name]
840 if { $current_target != $et_broken_cplxf_arg_target_name } {
841 verbose "check_effective_target_broken_cplxf_arg: `$et_broken_cplxf_arg_target_name'" 2
842 set et_broken_cplxf_arg_target_name $current_target
843 if [info exists et_broken_cplxf_arg_saved
] {
844 verbose
"check_effective_target_broken_cplxf_arg: removing cached result" 2
845 unset et_broken_cplxf_arg_saved
849 if [info exists et_broken_cplxf_arg_saved
] {
850 verbose
"check_effective_target_broken_cplxf_arg: using cached result" 2
852 set et_broken_cplxf_arg_saved
0
853 # This is only known to affect one target.
854 if { ![istarget powerpc64
-*-linux
*] ||
![is
-effective
-target lp64
] } {
855 set et_broken_cplxf_arg_saved
0
856 verbose
"check_effective_target_broken_cplxf_arg: caching 0" 2
857 return $et_broken_cplxf_arg_saved
860 #
Set up
, compile, and
execute a C test
program that calls cabsf.
864 set f
[open $src
"w"]
865 puts $f
"#include <complex.h>"
866 puts $f
"extern void abort (void);"
867 puts $f
"float fabsf (float);"
868 puts $f
"float cabsf (_Complex float);"
869 puts $f
"int main ()"
871 puts $f
" _Complex float cf;"
873 puts $f
" cf = 3 + 4.0fi;"
874 puts $f
" f = cabsf (cf);"
875 puts $f
" if (fabsf (f - 5.0) > 0.0001) abort ();"
880 set lines
[$
{tool
}_target_compile $src $exe executable
"-lm"]
883 if [string match
"" $lines] {
884 # No error message
, compilation succeeded.
885 set result
[$
{tool
}_load
"./$exe" "" ""]
886 set status [lindex $result
0]
887 remote_file build
delete $exe
889 verbose
"check_effective_target_broken_cplxf_arg: status is <$status>" 2
891 if { $
status != "pass" } {
892 set et_broken_cplxf_arg_saved
1
895 verbose
"check_effective_target_broken_cplxf_arg: compilation failed" 2
898 return $et_broken_cplxf_arg_saved
901 proc check_alpha_max_hw_available
{ } {
902 global alpha_max_hw_available_saved
905 if [info exists alpha_max_hw_available_saved
] {
906 verbose
"check_alpha_max_hw_available returning saved $alpha_max_hw_available_saved" 2
908 set alpha_max_hw_available_saved
0
910 #
Set up
, compile, and
execute a test
program probing bit
8 of the
911 # architecture mask
, which indicates presence of
MAX instructions.
915 set f
[open $src
"w"]
916 puts $f
"int main() { return __builtin_alpha_amask(1<<8) != 0; }"
919 verbose
"check_alpha_max_hw_available compiling testfile $src" 2
920 set lines
[$
{tool
}_target_compile $src $exe executable
""]
923 if [string match
"" $lines] then {
924 # No error message
, compilation succeeded.
925 set result
[$
{tool
}_load
"./$exe" "" ""]
926 set status [lindex $result
0]
927 remote_file build
delete $exe
928 verbose
"check_alpha_max_hw_available testfile status is <$status>" 2
930 if { $
status == "pass" } then {
931 set alpha_max_hw_available_saved
1
934 verbose
"check_alpha_max_hw_availalble testfile compilation failed" 2
938 return $alpha_max_hw_available_saved
941 # Returns true iff the FUNCTION is available
on the target
system.
942 #
(This is essentially a Tcl implementation of Autoconf
's
945 proc check_function_available { function } {
946 set var "${function}_available_saved"
950 if {![info exists $var]} {
953 # Check to make sure.
954 set src "function[pid].c"
955 set exe "function[pid].exe"
957 set f [open $src "w"]
958 puts $f "#ifdef __cplusplus\nextern \"C\"\n#endif\n"
959 puts $f "char $function ();\n"
960 puts $f "int main () { $function (); }"
963 set lines [${tool}_target_compile $src $exe executable ""]
967 if {![string match "" $lines]} then {
969 verbose -log "$function is not available"
971 verbose -log "$function is available"
978 # Returns true iff "fork" is available on the target system.
980 proc check_fork_available {} {
981 return [check_function_available "fork"]
984 # Returns true iff "mkfifo" is available on the target system.
986 proc check_mkfifo_available {} {
987 if {[istarget *-*-cygwin*]} {
988 # Cygwin has mkfifo, but support is incomplete.
992 return [check_function_available "mkfifo"]
995 # Returns true iff "__cxa_atexit" is used on the target system.
997 proc check_cxa_atexit_available { } {
999 global et_cxa_atexit_target_name
1002 if { ![info exists et_cxa_atexit_target_name] } {
1003 set et_cxa_atexit_target_name ""
1006 # If the target has changed since we set the cached value, clear it.
1007 set current_target [current_target_name]
1008 if { $current_target != $et_cxa_atexit_target_name } {
1009 verbose "check_cxa_atexit_available: `$et_cxa_atexit_target_name'" 2
1010 set et_cxa_atexit_target_name $current_target
1011 if [info exists et_cxa_atexit
] {
1012 verbose
"check_cxa_atexit_available: removing cached result" 2
1017 if [info exists et_cxa_atexit
] {
1018 verbose
"check_cxa_atexit_available: using cached result" 2
1019 } elseif
{ [istarget
"hppa*-*-hpux10*"] } {
1020 # HP
-UX
10 doesn
't have __cxa_atexit but subsequent test passes.
1025 # Set up, compile, and execute a C++ test program that depends
1026 # on correct ordering of static object destructors. This is
1027 # indicative of the presence and use of __cxa_atexit.
1028 set src cxaatexit[pid].cc
1029 set exe cxaatexit[pid].x
1031 set f [open $src "w"]
1032 puts $f "#include <stdlib.h>"
1033 puts $f "static unsigned int count;"
1036 puts $f " X() { count = 1; }"
1039 puts $f " if (count != 3)"
1041 puts $f " count = 4;"
1046 puts $f " static X x;"
1050 puts $f " Y() { f(); count = 2; }"
1053 puts $f " if (count != 2)"
1055 puts $f " count = 3;"
1059 puts $f "int main()"
1060 puts $f "{ return 0; }"
1063 set lines [${tool}_target_compile $src $exe executable ""]
1066 if [string match "" $lines] {
1067 # No error message, compilation succeeded.
1068 set result [${tool}_load "./$exe" "" ""]
1069 set status [lindex $result 0]
1070 remote_file build delete $exe
1072 verbose "check_cxa_atexit_available: status is <$status>" 2
1074 if { $status == "pass" } {
1078 verbose "check_cxa_atexit_available: compilation failed" 2
1081 return $et_cxa_atexit
1085 # Return 1 if we're generating
32-bit code using default options
, 0
1088 proc check_effective_target_ilp32
{ } {
1089 return [check_no_compiler_messages ilp32 object
{
1090 int dummy
[sizeof
(int) == 4
1091 && sizeof
(void
*) == 4
1092 && sizeof
(long
) == 4 ?
1 : -1];
1096 #
Return 1 if we
're generating 32-bit or larger integers using default
1097 # options, 0 otherwise.
1099 proc check_effective_target_int32plus { } {
1100 return [check_no_compiler_messages int32plus object {
1101 int dummy[sizeof (int) >= 4 ? 1 : -1];
1105 # Return 1 if we're generating
32-bit or larger pointers using default
1106 # options
, 0 otherwise.
1108 proc check_effective_target_ptr32plus
{ } {
1109 return [check_no_compiler_messages ptr32plus object
{
1110 int dummy
[sizeof
(void
*) >= 4 ?
1 : -1];
1114 #
Return 1 if we support
32-bit or larger array and structure sizes
1115 # using default options
, 0 otherwise.
1117 proc check_effective_target_size32plus
{ } {
1118 return [check_no_compiler_messages size32plus object
{
1123 # Returns
1 if we
're generating 16-bit or smaller integers with the
1124 # default options, 0 otherwise.
1126 proc check_effective_target_int16 { } {
1127 return [check_no_compiler_messages int16 object {
1128 int dummy[sizeof (int) < 4 ? 1 : -1];
1132 # Return 1 if we're generating
64-bit code using default options
, 0
1135 proc check_effective_target_lp64
{ } {
1136 return [check_no_compiler_messages lp64 object
{
1137 int dummy
[sizeof
(int) == 4
1138 && sizeof
(void
*) == 8
1139 && sizeof
(long
) == 8 ?
1 : -1];
1143 #
Return 1 if the target supports long double larger than double
,
1146 proc check_effective_target_large_long_double
{ } {
1147 return [check_no_compiler_messages large_long_double object
{
1148 int dummy
[sizeof
(long double
) > sizeof
(double
) ?
1 : -1];
1153 #
Return 1 if the target supports compiling decimal floating point
,
1156 proc check_effective_target_dfp_nocache
{ } {
1157 verbose
"check_effective_target_dfp_nocache: compiling source" 2
1158 set ret
[string match
"" [get_compiler_messages dfp 0 object {
1159 _Decimal32 x
; _Decimal64 y
; _Decimal128 z
;
1161 verbose
"check_effective_target_dfp_nocache: returning $ret" 2
1165 proc check_effective_target_dfprt_nocache
{ } {
1170 verbose
"check_effective_target_dfprt_nocache: compiling source" 2
1171 #
Set up
, compile, and
execute a test
program containing decimal
1173 set src dfprt
[pid
].c
1174 set exe dfprt
[pid
].x
1176 set f
[open $src
"w"]
1177 puts $f
"_Decimal32 x = 1.2df; _Decimal64 y = 2.3dd; _Decimal128 z;"
1178 puts $f
"int main () { z = x + y; return 0; }"
1181 verbose
"check_effective_target_dfprt_nocache: compiling testfile $src" 2
1182 set lines
[$
{tool
}_target_compile $src $exe executable
""]
1185 if [string match
"" $lines] then {
1186 # No error message
, compilation succeeded.
1187 set result
[$
{tool
}_load
"./$exe" "" ""]
1188 set status [lindex $result
0]
1189 remote_file build
delete $exe
1190 verbose
"check_effective_target_dfprt_nocache: testfile status is <$status>" 2
1191 if { $
status == "pass" } then {
1196 verbose
"check_effective_target_dfprt_nocache: returning $ret" 2
1199 #
Return 1 if the target supports compiling Decimal Floating Point
,
1202 # This won
't change for different subtargets so cache the result.
1204 proc check_effective_target_dfp { } {
1207 if [info exists et_dfp_saved] {
1208 verbose "check_effective_target_dfp: using cached result" 2
1210 set et_dfp_saved [check_effective_target_dfp_nocache]
1212 verbose "check_effective_target_dfp: returning $et_dfp_saved" 2
1213 return $et_dfp_saved
1216 # Return 1 if the target supports linking and executing Decimal Floating
1217 # Point, # 0 otherwise.
1219 # This won't change
for different subtargets so
cache the result.
1221 proc check_effective_target_dfprt
{ } {
1222 global et_dfprt_saved
1225 if [info exists et_dfprt_saved
] {
1226 verbose
"check_effective_target_dfprt: using cached result" 2
1228 set et_dfprt_saved
[check_effective_target_dfprt_nocache
]
1230 verbose
"check_effective_target_dfprt: returning $et_dfprt_saved" 2
1231 return $et_dfprt_saved
1234 #
Return 1 if the target needs a command line
argument to enable a SIMD
1237 proc check_effective_target_vect_cmdline_needed
{ } {
1238 global et_vect_cmdline_needed_saved
1239 global et_vect_cmdline_needed_target_name
1241 if { ![info exists et_vect_cmdline_needed_target_name
] } {
1242 set et_vect_cmdline_needed_target_name
""
1245 #
If the target has changed since we
set the cached value
, clear it.
1246 set current_target
[current_target_name
]
1247 if { $current_target
!= $et_vect_cmdline_needed_target_name
} {
1248 verbose
"check_effective_target_vect_cmdline_needed: `$et_vect_cmdline_needed_target_name' `$current_target'" 2
1249 set et_vect_cmdline_needed_target_name $current_target
1250 if { [info exists et_vect_cmdline_needed_saved
] } {
1251 verbose
"check_effective_target_vect_cmdline_needed: removing cached result" 2
1252 unset et_vect_cmdline_needed_saved
1256 if [info exists et_vect_cmdline_needed_saved
] {
1257 verbose
"check_effective_target_vect_cmdline_needed: using cached result" 2
1259 set et_vect_cmdline_needed_saved
1
1260 if { [istarget ia64
-*-*]
1261 ||
(([istarget x86_64
-*-*] ||
[istarget i?
86-*-*])
1262 && [check_effective_target_lp64
])
1263 ||
([istarget powerpc
*-*-*]
1264 && ([check_effective_target_powerpc_spe
]
1265 ||
[check_effective_target_powerpc_altivec
]))} {
1266 set et_vect_cmdline_needed_saved
0
1270 verbose
"check_effective_target_vect_cmdline_needed: returning $et_vect_cmdline_needed_saved" 2
1271 return $et_vect_cmdline_needed_saved
1274 #
Return 1 if the target supports hardware vectors of
int, 0 otherwise.
1276 # This won
't change for different subtargets so cache the result.
1278 proc check_effective_target_vect_int { } {
1279 global et_vect_int_saved
1281 if [info exists et_vect_int_saved] {
1282 verbose "check_effective_target_vect_int: using cached result" 2
1284 set et_vect_int_saved 0
1285 if { [istarget i?86-*-*]
1286 || [istarget powerpc*-*-*]
1287 || [istarget spu-*-*]
1288 || [istarget x86_64-*-*]
1289 || [istarget sparc*-*-*]
1290 || [istarget alpha*-*-*]
1291 || [istarget ia64-*-*] } {
1292 set et_vect_int_saved 1
1296 verbose "check_effective_target_vect_int: returning $et_vect_int_saved" 2
1297 return $et_vect_int_saved
1300 # Return 1 is this is an arm target using 32-bit instructions
1301 proc check_effective_target_arm32 { } {
1302 global et_arm32_saved
1303 global et_arm32_target_name
1304 global compiler_flags
1306 if { ![info exists et_arm32_target_name] } {
1307 set et_arm32_target_name ""
1310 # If the target has changed since we set the cached value, clear it.
1311 set current_target [current_target_name]
1312 if { $current_target != $et_arm32_target_name } {
1313 verbose "check_effective_target_arm32: `$et_arm32_target_name' `$current_target
'" 2
1314 set et_arm32_target_name $current_target
1315 if { [info exists et_arm32_saved] } {
1316 verbose "check_effective_target_arm32: removing cached result" 2
1317 unset et_arm32_saved
1321 if [info exists et_arm32_saved] {
1322 verbose "check-effective_target_arm32: using cached result" 2
1324 set et_arm32_saved 0
1325 if { [istarget arm-*-*]
1326 || [istarget strongarm*-*-*]
1327 || [istarget xscale-*-*] } {
1328 if ![string match "*-mthumb *" $compiler_flags] {
1329 set et_arm32_saved 1
1333 verbose "check_effective_target_arm32: returning $et_arm32_saved" 2
1334 return $et_arm32_saved
1337 # Return 1 if this is an ARM target supporting -mfpu=vfp
1338 # -mfloat-abi=softfp. Some multilibs may be incompatible with these
1341 proc check_effective_target_arm_vfp_ok { } {
1342 if { [check_effective_target_arm32] } {
1343 return [check_no_compiler_messages arm_vfp_ok object {
1345 } "-mfpu=vfp -mfloat-abi=softfp"]
1351 # Return 1 if this is a PowerPC target with floating-point registers.
1353 proc check_effective_target_powerpc_fprs { } {
1354 if { [istarget powerpc*-*-*]
1355 || [istarget rs6000-*-*] } {
1356 return [check_no_compiler_messages powerpc_fprs object {
1368 # Return 1 if this is a PowerPC target supporting -maltivec.
1370 proc check_effective_target_powerpc_altivec_ok { } {
1371 if { [istarget powerpc*-*-*]
1372 || [istarget rs6000-*-*] } {
1373 # AltiVec is not supported on Aix.
1374 if { [istarget powerpc*-*-aix*] } {
1377 return [check_no_compiler_messages powerpc_altivec_ok object {
1385 # Return 1 if this is a PowerPC target with SPE enabled.
1387 proc check_effective_target_powerpc_spe { } {
1388 if { [istarget powerpc*-*-*] } {
1389 return [check_no_compiler_messages powerpc_spe object {
1401 # Return 1 if this is a PowerPC target with Altivec enabled.
1403 proc check_effective_target_powerpc_altivec { } {
1404 if { [istarget powerpc*-*-*] } {
1405 return [check_no_compiler_messages powerpc_altivec object {
1417 # Return 1 if the target supports hardware vector shift operation.
1419 proc check_effective_target_vect_shift { } {
1420 global et_vect_shift_saved
1422 if [info exists et_vect_shift_saved] {
1423 verbose "check_effective_target_vect_shift: using cached result" 2
1425 set et_vect_shift_saved 0
1426 if { [istarget powerpc*-*-*]
1427 || [istarget ia64-*-*]
1428 || [istarget i?86-*-*]
1429 || [istarget x86_64-*-*] } {
1430 set et_vect_shift_saved 1
1434 verbose "check_effective_target_vect_shift: returning $et_vect_shift_saved" 2
1435 return $et_vect_shift_saved
1438 # Return 1 if the target supports hardware vectors of long, 0 otherwise.
1440 # This can change for different subtargets so do not cache the result.
1442 proc check_effective_target_vect_long { } {
1443 if { [istarget i?86-*-*]
1444 || ([istarget powerpc*-*-*] && [check_effective_target_ilp32])
1445 || [istarget x86_64-*-*]
1446 || ([istarget sparc*-*-*] && [check_effective_target_ilp32]) } {
1452 verbose "check_effective_target_vect_long: returning $answer" 2
1456 # Return 1 if the target supports hardware vectors of float, 0 otherwise.
1458 # This won't change
for different subtargets so
cache the result.
1460 proc check_effective_target_vect_float
{ } {
1461 global et_vect_float_saved
1463 if [info exists et_vect_float_saved
] {
1464 verbose
"check_effective_target_vect_float: using cached result" 2
1466 set et_vect_float_saved
0
1467 if { [istarget i?
86-*-*]
1468 ||
[istarget powerpc
*-*-*]
1469 ||
[istarget spu
-*-*]
1470 ||
[istarget mipsisa64
*-*-*]
1471 ||
[istarget x86_64
-*-*]
1472 ||
[istarget ia64
-*-*] } {
1473 set et_vect_float_saved
1
1477 verbose
"check_effective_target_vect_float: returning $et_vect_float_saved" 2
1478 return $et_vect_float_saved
1481 #
Return 1 if the target supports hardware vectors of double
, 0 otherwise.
1483 # This won
't change for different subtargets so cache the result.
1485 proc check_effective_target_vect_double { } {
1486 global et_vect_double_saved
1488 if [info exists et_vect_double_saved] {
1489 verbose "check_effective_target_vect_double: using cached result" 2
1491 set et_vect_double_saved 0
1492 if { [istarget i?86-*-*]
1493 || [istarget x86_64-*-*]
1494 || [istarget spu-*-*] } {
1495 set et_vect_double_saved 1
1499 verbose "check_effective_target_vect_double: returning $et_vect_double_saved" 2
1500 return $et_vect_double_saved
1503 # Return 0 if the target supports hardware comparison of vectors of double, 0 otherwise.
1505 # This won't change
for different subtargets so
cache the result.
1507 proc check_effective_target_vect_no_compare_double
{ } {
1508 global et_vect_no_compare_double_saved
1510 if [info exists et_vect_no_compare_double_saved
] {
1511 verbose
"check_effective_target_vect_no_compare_double: using cached result" 2
1513 set et_vect_no_compare_double_saved
0
1514 if { [istarget spu
-*-*] } {
1515 set et_vect_no_compare_double_saved
1
1519 verbose
"check_effective_target_vect_no_compare_double: returning $et_vect_no_compare_double_saved" 2
1520 return $et_vect_no_compare_double_saved
1523 #
Return 1 if the target plus current options does not support a vector
1524 #
max instruction
on "int", 0 otherwise.
1526 # This won
't change for different subtargets so cache the result.
1528 proc check_effective_target_vect_no_int_max { } {
1529 global et_vect_no_int_max_saved
1531 if [info exists et_vect_no_int_max_saved] {
1532 verbose "check_effective_target_vect_no_int_max: using cached result" 2
1534 set et_vect_no_int_max_saved 0
1535 if { [istarget sparc*-*-*]
1536 || [istarget spu-*-*]
1537 || [istarget alpha*-*-*] } {
1538 set et_vect_no_int_max_saved 1
1541 verbose "check_effective_target_vect_no_int_max: returning $et_vect_no_int_max_saved" 2
1542 return $et_vect_no_int_max_saved
1545 # Return 1 if the target plus current options does not support a vector
1546 # add instruction on "int", 0 otherwise.
1548 # This won't change
for different subtargets so
cache the result.
1550 proc check_effective_target_vect_no_int_add
{ } {
1551 global et_vect_no_int_add_saved
1553 if [info exists et_vect_no_int_add_saved
] {
1554 verbose
"check_effective_target_vect_no_int_add: using cached result" 2
1556 set et_vect_no_int_add_saved
0
1557 # Alpha only supports vector add
on V8QI and V4HI.
1558 if { [istarget alpha
*-*-*] } {
1559 set et_vect_no_int_add_saved
1
1562 verbose
"check_effective_target_vect_no_int_add: returning $et_vect_no_int_add_saved" 2
1563 return $et_vect_no_int_add_saved
1566 #
Return 1 if the target plus current options does not support vector
1567 # bitwise instructions
, 0 otherwise.
1569 # This won
't change for different subtargets so cache the result.
1571 proc check_effective_target_vect_no_bitwise { } {
1572 global et_vect_no_bitwise_saved
1574 if [info exists et_vect_no_bitwise_saved] {
1575 verbose "check_effective_target_vect_no_bitwise: using cached result" 2
1577 set et_vect_no_bitwise_saved 0
1579 verbose "check_effective_target_vect_no_bitwise: returning $et_vect_no_bitwise_saved" 2
1580 return $et_vect_no_bitwise_saved
1583 # Return 1 if the target plus current options supports a vector
1584 # widening summation of *short* args into *int* result, 0 otherwise.
1585 # A target can also support this widening summation if it can support
1586 # promotion (unpacking) from shorts to ints.
1588 # This won't change
for different subtargets so
cache the result.
1590 proc check_effective_target_vect_widen_sum_hi_to_si
{ } {
1591 global et_vect_widen_sum_hi_to_si
1593 if [info exists et_vect_widen_sum_hi_to_si_saved
] {
1594 verbose
"check_effective_target_vect_widen_sum_hi_to_si: using cached result" 2
1596 set et_vect_widen_sum_hi_to_si_saved
[check_effective_target_vect_unpack
]
1597 if { [istarget powerpc
*-*-*] } {
1598 set et_vect_widen_sum_hi_to_si_saved
1
1601 verbose
"check_effective_target_vect_widen_sum_hi_to_si: returning $et_vect_widen_sum_hi_to_si_saved" 2
1602 return $et_vect_widen_sum_hi_to_si_saved
1605 #
Return 1 if the target plus current options supports a vector
1606 # widening summation of
*char
* args into
*short
* result
, 0 otherwise.
1607 # A target can also support this widening summation
if it can support
1608 # promotion
(unpacking
) from chars to shorts.
1610 # This won
't change for different subtargets so cache the result.
1612 proc check_effective_target_vect_widen_sum_qi_to_hi { } {
1613 global et_vect_widen_sum_qi_to_hi
1615 if [info exists et_vect_widen_sum_qi_to_hi_saved] {
1616 verbose "check_effective_target_vect_widen_sum_qi_to_hi: using cached result" 2
1618 set et_vect_widen_sum_qi_to_hi_saved 0
1619 if { [check_effective_target_vect_unpack] } {
1620 set et_vect_widen_sum_qi_to_hi_saved 1
1623 verbose "check_effective_target_vect_widen_sum_qi_to_hi: returning $et_vect_widen_sum_qi_to_hi_saved" 2
1624 return $et_vect_widen_sum_qi_to_hi_saved
1627 # Return 1 if the target plus current options supports a vector
1628 # widening summation of *char* args into *int* result, 0 otherwise.
1630 # This won't change
for different subtargets so
cache the result.
1632 proc check_effective_target_vect_widen_sum_qi_to_si
{ } {
1633 global et_vect_widen_sum_qi_to_si
1635 if [info exists et_vect_widen_sum_qi_to_si_saved
] {
1636 verbose
"check_effective_target_vect_widen_sum_qi_to_si: using cached result" 2
1638 set et_vect_widen_sum_qi_to_si_saved
0
1639 if { [istarget powerpc
*-*-*] } {
1640 set et_vect_widen_sum_qi_to_si_saved
1
1643 verbose
"check_effective_target_vect_widen_sum_qi_to_si: returning $et_vect_widen_sum_qi_to_si_saved" 2
1644 return $et_vect_widen_sum_qi_to_si_saved
1647 #
Return 1 if the target plus current options supports a vector
1648 # widening multiplication of
*char
* args into
*short
* result
, 0 otherwise.
1649 # A target can also support this widening multplication
if it can support
1650 # promotion
(unpacking
) from chars to shorts
, and vect_short_mult
(non
-widening
1651 # multiplication of shorts
).
1653 # This won
't change for different subtargets so cache the result.
1656 proc check_effective_target_vect_widen_mult_qi_to_hi { } {
1657 global et_vect_widen_mult_qi_to_hi
1659 if [info exists et_vect_widen_mult_qi_to_hi_saved] {
1660 verbose "check_effective_target_vect_widen_mult_qi_to_hi: using cached result" 2
1662 if { [check_effective_target_vect_unpack]
1663 && [check_effective_target_vect_short_mult] } {
1664 set et_vect_widen_mult_qi_to_hi_saved 1
1666 set et_vect_widen_mult_qi_to_hi_saved 0
1668 if { [istarget powerpc*-*-*] } {
1669 set et_vect_widen_mult_qi_to_hi_saved 1
1672 verbose "check_effective_target_vect_widen_mult_qi_to_hi: returning $et_vect_widen_mult_qi_to_hi_saved" 2
1673 return $et_vect_widen_mult_qi_to_hi_saved
1676 # Return 1 if the target plus current options supports a vector
1677 # widening multiplication of *short* args into *int* result, 0 otherwise.
1678 # A target can also support this widening multplication if it can support
1679 # promotion (unpacking) from shorts to ints, and vect_int_mult (non-widening
1680 # multiplication of ints).
1682 # This won't change
for different subtargets so
cache the result.
1685 proc check_effective_target_vect_widen_mult_hi_to_si
{ } {
1686 global et_vect_widen_mult_hi_to_si
1688 if [info exists et_vect_widen_mult_hi_to_si_saved
] {
1689 verbose
"check_effective_target_vect_widen_mult_hi_to_si: using cached result" 2
1691 if { [check_effective_target_vect_unpack
]
1692 && [check_effective_target_vect_int_mult
] } {
1693 set et_vect_widen_mult_hi_to_si_saved
1
1695 set et_vect_widen_mult_hi_to_si_saved
0
1697 if { [istarget powerpc
*-*-*]
1698 ||
[istarget spu
-*-*]
1699 ||
[istarget i?
86-*-*]
1700 ||
[istarget x86_64
-*-*] } {
1701 set et_vect_widen_mult_hi_to_si_saved
1
1704 verbose
"check_effective_target_vect_widen_mult_hi_to_si: returning $et_vect_widen_mult_hi_to_si_saved" 2
1705 return $et_vect_widen_mult_hi_to_si_saved
1708 #
Return 1 if the target plus current options supports a vector
1709 # dot
-product of signed chars
, 0 otherwise.
1711 # This won
't change for different subtargets so cache the result.
1713 proc check_effective_target_vect_sdot_qi { } {
1714 global et_vect_sdot_qi
1716 if [info exists et_vect_sdot_qi_saved] {
1717 verbose "check_effective_target_vect_sdot_qi: using cached result" 2
1719 set et_vect_sdot_qi_saved 0
1721 verbose "check_effective_target_vect_sdot_qi: returning $et_vect_sdot_qi_saved" 2
1722 return $et_vect_sdot_qi_saved
1725 # Return 1 if the target plus current options supports a vector
1726 # dot-product of unsigned chars, 0 otherwise.
1728 # This won't change
for different subtargets so
cache the result.
1730 proc check_effective_target_vect_udot_qi
{ } {
1731 global et_vect_udot_qi
1733 if [info exists et_vect_udot_qi_saved
] {
1734 verbose
"check_effective_target_vect_udot_qi: using cached result" 2
1736 set et_vect_udot_qi_saved
0
1737 if { [istarget powerpc
*-*-*] } {
1738 set et_vect_udot_qi_saved
1
1741 verbose
"check_effective_target_vect_udot_qi: returning $et_vect_udot_qi_saved" 2
1742 return $et_vect_udot_qi_saved
1745 #
Return 1 if the target plus current options supports a vector
1746 # dot
-product of signed shorts
, 0 otherwise.
1748 # This won
't change for different subtargets so cache the result.
1750 proc check_effective_target_vect_sdot_hi { } {
1751 global et_vect_sdot_hi
1753 if [info exists et_vect_sdot_hi_saved] {
1754 verbose "check_effective_target_vect_sdot_hi: using cached result" 2
1756 set et_vect_sdot_hi_saved 0
1757 if { [istarget powerpc*-*-*]
1758 || [istarget i?86-*-*]
1759 || [istarget x86_64-*-*] } {
1760 set et_vect_sdot_hi_saved 1
1763 verbose "check_effective_target_vect_sdot_hi: returning $et_vect_sdot_hi_saved" 2
1764 return $et_vect_sdot_hi_saved
1767 # Return 1 if the target plus current options supports a vector
1768 # dot-product of unsigned shorts, 0 otherwise.
1770 # This won't change
for different subtargets so
cache the result.
1772 proc check_effective_target_vect_udot_hi
{ } {
1773 global et_vect_udot_hi
1775 if [info exists et_vect_udot_hi_saved
] {
1776 verbose
"check_effective_target_vect_udot_hi: using cached result" 2
1778 set et_vect_udot_hi_saved
0
1779 if { [istarget powerpc
*-*-*] } {
1780 set et_vect_udot_hi_saved
1
1783 verbose
"check_effective_target_vect_udot_hi: returning $et_vect_udot_hi_saved" 2
1784 return $et_vect_udot_hi_saved
1788 #
Return 1 if the target plus current options supports a vector
1789 # demotion
(packing
) of shorts
(to chars
) and ints
(to shorts
)
1790 # using modulo arithmetic
, 0 otherwise.
1792 # This won
't change for different subtargets so cache the result.
1794 proc check_effective_target_vect_pack_mod { } {
1795 global et_vect_pack_mod
1797 if [info exists et_vect_pack_mod_saved] {
1798 verbose "check_effective_target_vect_pack_mod: using cached result" 2
1800 set et_vect_pack_mod_saved 0
1801 if { [istarget powerpc*-*-*]
1802 || [istarget i?86-*-*]
1803 || [istarget x86_64-*-*] } {
1804 set et_vect_pack_mod_saved 1
1807 verbose "check_effective_target_vect_pack_mod: returning $et_vect_pack_mod_saved" 2
1808 return $et_vect_pack_mod_saved
1811 # Return 1 if the target plus current options supports a vector
1812 # promotion (unpacking) of chars (to shorts) and shorts (to ints), 0 otherwise.
1814 # This won't change
for different subtargets so
cache the result.
1816 proc check_effective_target_vect_unpack
{ } {
1817 global et_vect_unpack
1819 if [info exists et_vect_unpack_saved
] {
1820 verbose
"check_effective_target_vect_unpack: using cached result" 2
1822 set et_vect_unpack_saved
0
1823 if { [istarget powerpc
*-*-*]
1824 ||
[istarget i?
86-*-*]
1825 ||
[istarget x86_64
-*-*] } {
1826 set et_vect_unpack_saved
1
1829 verbose
"check_effective_target_vect_unpack: returning $et_vect_unpack_saved" 2
1830 return $et_vect_unpack_saved
1833 #
Return 1 if the target plus current options does not support a vector
1834 # alignment mechanism
, 0 otherwise.
1836 # This won
't change for different subtargets so cache the result.
1838 proc check_effective_target_vect_no_align { } {
1839 global et_vect_no_align_saved
1841 if [info exists et_vect_no_align_saved] {
1842 verbose "check_effective_target_vect_no_align: using cached result" 2
1844 set et_vect_no_align_saved 0
1845 if { [istarget mipsisa64*-*-*]
1846 || [istarget sparc*-*-*]
1847 || [istarget ia64-*-*] } {
1848 set et_vect_no_align_saved 1
1851 verbose "check_effective_target_vect_no_align: returning $et_vect_no_align_saved" 2
1852 return $et_vect_no_align_saved
1855 # Return 1 if the target supports vector conditional operations, 0 otherwise.
1857 proc check_effective_target_vect_condition { } {
1858 global et_vect_cond_saved
1860 if [info exists et_vect_cond_saved] {
1861 verbose "check_effective_target_vect_cond: using cached result" 2
1863 set et_vect_cond_saved 0
1864 if { [istarget powerpc*-*-*]
1865 || [istarget ia64-*-*]
1866 || [istarget i?86-*-*]
1867 || [istarget x86_64-*-*] } {
1868 set et_vect_cond_saved 1
1872 verbose "check_effective_target_vect_cond: returning $et_vect_cond_saved" 2
1873 return $et_vect_cond_saved
1876 # Return 1 if the target supports vector char multiplication, 0 otherwise.
1878 proc check_effective_target_vect_char_mult { } {
1879 global et_vect_char_mult_saved
1881 if [info exists et_vect_char_mult_saved] {
1882 verbose "check_effective_target_vect_char_mult: using cached result" 2
1884 set et_vect_char_mult_saved 0
1885 if { [istarget ia64-*-*]
1886 || [istarget i?86-*-*]
1887 || [istarget x86_64-*-*] } {
1888 set et_vect_char_mult_saved 1
1892 verbose "check_effective_target_vect_char_mult: returning $et_vect_char_mult_saved" 2
1893 return $et_vect_char_mult_saved
1896 # Return 1 if the target supports vector short multiplication, 0 otherwise.
1898 proc check_effective_target_vect_short_mult { } {
1899 global et_vect_short_mult_saved
1901 if [info exists et_vect_short_mult_saved] {
1902 verbose "check_effective_target_vect_short_mult: using cached result" 2
1904 set et_vect_short_mult_saved 0
1905 if { [istarget ia64-*-*]
1906 || [istarget i?86-*-*]
1907 || [istarget x86_64-*-*] } {
1908 set et_vect_short_mult_saved 1
1912 verbose "check_effective_target_vect_short_mult: returning $et_vect_short_mult_saved" 2
1913 return $et_vect_short_mult_saved
1916 # Return 1 if the target supports vector int multiplication, 0 otherwise.
1918 proc check_effective_target_vect_int_mult { } {
1919 global et_vect_int_mult_saved
1921 if [info exists et_vect_int_mult_saved] {
1922 verbose "check_effective_target_vect_int_mult: using cached result" 2
1924 set et_vect_int_mult_saved 0
1925 if { [istarget powerpc*-*-*]
1926 || [istarget i?86-*-*]
1927 || [istarget x86_64-*-*] } {
1928 set et_vect_int_mult_saved 1
1932 verbose "check_effective_target_vect_int_mult: returning $et_vect_int_mult_saved" 2
1933 return $et_vect_int_mult_saved
1936 # Return 1 if the target supports vector even/odd elements extraction, 0 otherwise.
1938 proc check_effective_target_vect_extract_even_odd { } {
1939 global et_vect_extract_even_odd_saved
1941 if [info exists et_vect_extract_even_odd_saved] {
1942 verbose "check_effective_target_vect_extract_even_odd: using cached result" 2
1944 set et_vect_extract_even_odd_saved 0
1945 if { [istarget powerpc*-*-*] } {
1946 set et_vect_extract_even_odd_saved 1
1950 verbose "check_effective_target_vect_extract_even_odd: returning $et_vect_extract_even_odd_saved" 2
1951 return $et_vect_extract_even_odd_saved
1954 # Return 1 if the target supports vector interleaving, 0 otherwise.
1956 proc check_effective_target_vect_interleave { } {
1957 global et_vect_interleave_saved
1959 if [info exists et_vect_interleave_saved] {
1960 verbose "check_effective_target_vect_interleave: using cached result" 2
1962 set et_vect_interleave_saved 0
1963 if { [istarget powerpc*-*-*]
1964 || [istarget i?86-*-*]
1965 || [istarget x86_64-*-*] } {
1966 set et_vect_interleave_saved 1
1970 verbose "check_effective_target_vect_interleave: returning $et_vect_interleave_saved" 2
1971 return $et_vect_interleave_saved
1974 # Return 1 if the target supports section-anchors
1976 proc check_effective_target_section_anchors { } {
1977 global et_section_anchors_saved
1979 if [info exists et_section_anchors_saved] {
1980 verbose "check_effective_target_section_anchors: using cached result" 2
1982 set et_section_anchors_saved 0
1983 if { [istarget powerpc*-*-*] } {
1984 set et_section_anchors_saved 1
1988 verbose "check_effective_target_section_anchors: returning $et_section_anchors_saved" 2
1989 return $et_section_anchors_saved
1992 # Return 1 if the target supports atomic operations on "int" and "long".
1994 proc check_effective_target_sync_int_long { } {
1995 global et_sync_int_long_saved
1997 if [info exists et_sync_int_long_saved] {
1998 verbose "check_effective_target_sync_int_long: using cached result" 2
2000 set et_sync_int_long_saved 0
2001 # This is intentionally powerpc but not rs6000, rs6000 doesn't have the
2002 #
load-reserved/store
-conditional instructions.
2003 if { [istarget ia64
-*-*]
2004 ||
[istarget i?
86-*-*]
2005 ||
[istarget x86_64
-*-*]
2006 ||
[istarget alpha
*-*-*]
2007 ||
[istarget s390
*-*-*]
2008 ||
[istarget powerpc
*-*-*]
2009 ||
[istarget sparc64
-*-*]
2010 ||
[istarget sparcv9
-*-*] } {
2011 set et_sync_int_long_saved
1
2015 verbose
"check_effective_target_sync_int_long: returning $et_sync_int_long_saved" 2
2016 return $et_sync_int_long_saved
2019 #
Return 1 if the target supports atomic operations
on "char" and "short".
2021 proc check_effective_target_sync_char_short
{ } {
2022 global et_sync_char_short_saved
2024 if [info exists et_sync_char_short_saved
] {
2025 verbose
"check_effective_target_sync_char_short: using cached result" 2
2027 set et_sync_char_short_saved
0
2028 # This is intentionally powerpc but not rs6000
, rs6000 doesn
't have the
2029 # load-reserved/store-conditional instructions.
2030 if { [istarget ia64-*-*]
2031 || [istarget i?86-*-*]
2032 || [istarget x86_64-*-*]
2033 || [istarget alpha*-*-*]
2034 || [istarget s390*-*-*]
2035 || [istarget powerpc*-*-*]
2036 || [istarget sparc64-*-*]
2037 || [istarget sparcv9-*-*] } {
2038 set et_sync_char_short_saved 1
2042 verbose "check_effective_target_sync_char_short: returning $et_sync_char_short_saved" 2
2043 return $et_sync_char_short_saved
2046 # Return 1 if the target uses a ColdFire FPU.
2048 proc check_effective_target_coldfire_fpu { } {
2049 return [check_no_compiler_messages coldfire_fpu assembly {
2056 # Return true if this is a uClibc target.
2058 proc check_effective_target_uclibc {} {
2059 return [check_no_compiler_messages uclibc object {
2060 #include <features.h>
2061 #if !defined (__UCLIBC__)
2067 # Return true if this is a Newlib target.
2069 proc check_effective_target_newlib {} {
2070 return [check_no_compiler_messages newlib object {
2076 # (a) an error of a few ULP is expected in string to floating-point
2077 # conversion functions; and
2078 # (b) overflow is not always detected correctly by those functions.
2080 proc check_effective_target_lax_strtofp {} {
2081 # By default, assume that all uClibc targets suffer from this.
2082 return [check_effective_target_uclibc]
2085 # Return 1 if this is a target for which wcsftime is a dummy
2086 # function that always returns 0.
2088 proc check_effective_target_dummy_wcsftime {} {
2089 # By default, assume that all uClibc targets suffer from this.
2090 return [check_effective_target_uclibc]
2093 # Return 1 if constructors with initialization priority arguments are
2094 # supposed on this target.
2096 proc check_effective_target_init_priority {} {
2097 return [check_no_compiler_messages init_priority assembly "
2098 void f() __attribute__((constructor (1000)));
2103 # Return 1 if the target matches the effective target 'arg', 0 otherwise.
2104 # This can be used with any check_* proc that takes no argument and
2105 # returns only 1 or 0. It could be used with check_* procs that take
2106 # arguments with keywords that pass particular arguments.
2108 proc is-effective-target { arg } {
2110 if { [info procs check_effective_target_${arg}] != [list] } {
2111 set selected [check_effective_target_${arg}]
2114 "vmx_hw" { set selected [check_vmx_hw_available] }
2115 "named_sections" { set selected [check_named_sections_available] }
2116 "gc_sections" { set selected [check_gc_sections_available] }
2117 "cxa_atexit" { set selected [check_cxa_atexit_available] }
2118 default { error "unknown effective target keyword `$arg'" }
2121 verbose
"is-effective-target: $arg $selected" 2
2125 #
Return 1 if the
argument is an effective
-target keyword
, 0 otherwise.
2127 proc is
-effective
-target
-keyword
{ arg } {
2128 if { [info procs check_effective_target_$
{arg}] != [list
] } {
2131 # These have different names
for their check_
* procs.
2133 "vmx_hw" { return 1 }
2134 "named_sections" { return 1 }
2135 "gc_sections" { return 1 }
2136 "cxa_atexit" { return 1 }
2137 default
{ return 0 }
2142 #
Return 1 if target default to short enums
2144 proc check_effective_target_short_enums
{ } {
2145 return [check_no_compiler_messages short_enums assembly
{
2147 int s
[sizeof
(enum foo
) == 1 ?
1 : -1];
2151 #
Return 1 if target supports merging string constants at link time.
2153 proc check_effective_target_string_merging
{ } {
2154 return [check_no_messages_and_pattern string_merging \
2155 "rodata\\.str" assembly {
2156 const char
*var
= "String";
2160 #
Return 1 if target has the basic signed and unsigned types in
2161 #
<stdint.h
>, 0 otherwise.
2163 proc check_effective_target_stdint_types
{ } {
2164 return [check_no_compiler_messages stdint_types assembly
{
2166 int8_t a
; int16_t b
; int32_t c
; int64_t d
;
2167 uint8_t e
; uint16_t f
; uint32_t g
; uint64_t h
;
2171 #
Return 1 if programs are intended to be run
on a simulator
2172 #
(i.e. slowly
) rather than hardware
(i.e. fast
).
2174 proc check_effective_target_simulator
{ } {
2176 # All
"src/sim" simulators set this one.
2177 if [board_info target
exists is_simulator
] {
2178 return [board_info target is_simulator
]
2181 # The
"sid" simulators don't set that one, but at least they set
2183 if [board_info target
exists slow_simulator
] {
2184 return [board_info target slow_simulator
]