1 # Copyright
(C
) 1999, 2001, 2003, 2004, 2005 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
2 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
, write to the Free Software
15 # Foundation
, Inc.
, 51 Franklin Street
, Fifth Floor
, Boston
, MA
02110-1301, USA.
17 # Please email
any bugs
, comments
, and
/or additions to this file to
:
18 # gcc
-patches@gcc.gnu.org
20 # This file defines procs
for determining features supported by the target.
22 # Try to
compile some code and
return the messages printed by the compiler.
24 # BASENAME is a basename to use
for temporary files.
25 # TYPE is the type of compilation to perform
(see target_compile
).
26 # CONTENTS gives the contents of the input file.
27 # The rest is optional
:
28 # OPTIONS
: additional compiler options to use.
29 proc get_compiler_messages
{basename type contents
args} {
32 if { [llength $
args] > 0 } {
33 set options
"additional_flags=[lindex $args 0]"
38 set src $
{basename
}[pid
].c
40 assembly
{ set output $
{basename
}[pid
].s
}
41 object
{ set output $
{basename
}[pid
].o
}
46 set lines
[$
{tool
}_target_compile $src $output $type
"$options"]
48 remote_file build
delete $output
53 proc current_target_name
{ } {
55 if [info exists target_info
(target
,name)] {
56 set answer $target_info
(target
,name)
63 ###############################
64 # proc check_weak_available
{ }
65 ###############################
67 # weak symbols are only supported in some configs
/object formats
68 # this proc returns
1 if they
're supported, 0 if they're not
, or
-1 if unsure
70 proc check_weak_available
{ } {
74 # All mips targets should support it
76 if { [ string first
"mips" $target_cpu ] >= 0 } {
80 # All solaris2 targets should support it
82 if { [regexp
".*-solaris2.*" $target_triplet] } {
86 # DEC OSF
/1/Digital UNIX
/Tru64 UNIX supports it
88 if { [regexp
"alpha.*osf.*" $target_triplet] } {
92 # Windows targets Cygwin and MingW32 support it
94 if { [regexp
".*mingw32|.*cygwin" $target_triplet] } {
98 # HP
-UX
10.X doesn
't support it
100 if { [regexp "hppa.*hpux10" $target_triplet] } {
104 # ELF and ECOFF support it. a.out does with gas/gld but may also with
105 # other linkers, so we should try it
107 set objformat [gcc_target_object_format]
115 unknown { return -1 }
120 ###############################
121 # proc check_visibility_available { what_kind }
122 ###############################
124 # The visibility attribute is only support in some object formats
125 # This proc returns 1 if it is supported, 0 if not.
126 # The argument is the kind of visibility, default/protected/hidden/internal.
128 proc check_visibility_available { what_kind } {
129 global visibility_available_saved
131 global target_triplet
133 # On NetWare, support makes no sense.
134 if { [string match "*-*-netware*" $target_triplet] } {
138 if [string match "" $what_kind] { set what_kind "hidden" }
140 if { [info exists visibility_available_saved] } {
141 verbose "Saved result is <$visibility_available_saved>" 1
142 if { [ lsearch -exact $visibility_available_saved $what_kind ] != -1 } {
144 } elseif { [ lsearch -exact $visibility_available_saved "!$what_kind" ] != -1 } {
149 set lines [get_compiler_messages visibility object "
150 void f() __attribute__((visibility(\"$what_kind\")));
153 if [string match "" $lines] then {
155 lappend visibility_available_saved $what_kind
158 lappend visibility_available_saved "!$what_kind"
163 ###############################
164 # proc check_alias_available { }
165 ###############################
167 # Determine if the target toolchain supports the alias attribute.
169 # Returns 2 if the target supports aliases. Returns 1 if the target
170 # only supports weak aliased. Returns 0 if the target does not
171 # support aliases at all. Returns -1 if support for aliases could not
174 proc check_alias_available { } {
175 global alias_available_saved
178 if [info exists alias_available_saved] {
179 verbose "check_alias_available returning saved $alias_available_saved" 2
183 verbose "check_alias_available compiling testfile $src" 2
184 set f [open $src "w"]
185 # Compile a small test program. The definition of "g" is
186 # necessary to keep the Solaris assembler from complaining
188 puts $f "#ifdef __cplusplus\nextern \"C\"\n#endif\n"
189 puts $f "void g() {} void f() __attribute__((alias(\"g\")));"
191 set lines [${tool}_target_compile $src $obj object ""]
193 remote_file build delete $obj
195 if [string match "" $lines] then {
196 # No error messages, everything is OK.
197 set alias_available_saved 2
199 if [regexp "alias definitions not supported" $lines] {
200 verbose "check_alias_available target does not support aliases" 2
202 set objformat [gcc_target_object_format]
204 if { $objformat == "elf" } {
205 verbose "check_alias_available but target uses ELF format, so it ought to" 2
206 set alias_available_saved -1
208 set alias_available_saved 0
211 if [regexp "only weak aliases are supported" $lines] {
212 verbose "check_alias_available target supports only weak aliases" 2
213 set alias_available_saved 1
215 set alias_available_saved -1
220 verbose "check_alias_available returning $alias_available_saved" 2
223 return $alias_available_saved
226 # Returns true if --gc-sections is supported on the target.
228 proc check_gc_sections_available { } {
229 global gc_sections_available_saved
232 if {![info exists gc_sections_available_saved]} {
233 # Some targets don't support gc
-sections despite whatever
's
234 # advertised by ld's options.
235 if { [istarget alpha
*-*-*]
236 ||
[istarget ia64
-*-*] } {
237 set gc_sections_available_saved
0
241 # Check
if the
ld used by gcc supports
--gc
-sections.
242 set gcc_spec
[$
{tool
}_target_compile
"-dumpspecs" "" "none" ""]
243 regsub
".*\n\*linker:\[ \t\]*\n(\[^ \t\n\]*).*" "$gcc_spec" {\1} linker
244 set gcc_ld
[lindex
[$
{tool
}_target_compile
"-print-prog-name=$linker" "" "none" ""] 0]
245 set ld_output
[remote_exec host
"$gcc_ld" "--help"]
246 if { [ string first
"--gc-sections" $ld_output ] >= 0 } {
247 set gc_sections_available_saved
1
249 set gc_sections_available_saved
0
252 return $gc_sections_available_saved
255 #
Return true
if profiling is supported
on the target.
257 proc check_profiling_available
{ test_what
} {
258 global profiling_available_saved
260 verbose
"Profiling argument is <$test_what>" 1
262 # These conditions depend
on the
argument so examine them before
263 # looking at the
cache variable.
265 # Support
for -p
on solaris2 relies
on mcrt1.o which comes with the
266 # vendor compiler. We cannot reliably predict the directory where the
267 # vendor compiler
(and thus mcrt1.o
) is installed so we can
't
268 # necessarily find mcrt1.o even if we have it.
269 if { [istarget *-*-solaris2*] && [lindex $test_what 1] == "-p" } {
273 # Support for -p on irix relies on libprof1.a which doesn't appear to
274 # exist
on any irix6
system currently posting testsuite results.
275 # Support
for -pg
on irix relies
on gcrt1.o which doesn
't exist yet.
276 # See: http://gcc.gnu.org/ml/gcc/2002-10/msg00169.html
277 if { [istarget mips*-*-irix*]
278 && ([lindex $test_what 1] == "-p" || [lindex $test_what 1] == "-pg") } {
282 # Now examine the cache variable.
283 if {![info exists profiling_available_saved]} {
284 # Some targets don't have
any implementation of __bb_init_func or are
285 # missing other needed machinery.
286 if { [istarget mmix
-*-*]
287 ||
[istarget arm
*-*-eabi
*]
288 ||
[istarget arm
*-*-elf
]
289 ||
[istarget arm
*-*-symbianelf
*]
290 ||
[istarget powerpc
-*-eabi
*]
291 ||
[istarget strongarm
*-*-elf
]
292 ||
[istarget xscale
*-*-elf
]
293 ||
[istarget cris
-*-*]
294 ||
[istarget h8300
-*-*]
295 ||
[istarget mips
*-*-elf
]
296 ||
[istarget xtensa
-*-elf
]
297 ||
[istarget
*-*-windiss
] } {
298 set profiling_available_saved
0
300 set profiling_available_saved
1
304 return $profiling_available_saved
307 #
Return 1 if -fpic and
-fPIC are supported
, as in no warnings or errors
308 # emitted
, 0 otherwise. Whether a shared library can actually be built is
309 # out of scope
for this test.
311 # When the target
name changes
, replace the cached result.
313 proc check_effective_target_fpic
{ } {
315 global et_fpic_target_name
317 if { ![info exists et_fpic_target_name
] } {
318 set et_fpic_target_name
""
321 #
If the target has changed since we
set the cached value
, clear it.
322 set current_target
[current_target_name
]
323 if { $current_target
!= $et_fpic_target_name
} {
324 verbose
"check_effective_target_fpic: `$et_fpic_target_name'" 2
325 set et_fpic_target_name $current_target
326 if [info exists et_fpic_saved
] {
327 verbose
"check_effective_target_fpic: removing cached result" 2
332 if [info exists et_fpic_saved
] {
333 verbose
"check_effective_target_fpic: using cached result" 2
335 verbose
"check_effective_target_fpic: compiling source" 2
337 # Note that M68K has a multilib that supports
-fpic but not
338 #
-fPIC
, so we need to check both. We test with a
program that
339 # requires GOT references.
340 set et_fpic_saved
[string match
"" [get_compiler_messages fpic object {
341 extern
int foo
(void
); extern
int bar
;
342 int baz
(void
) { return foo
() + bar
; }
345 if { $et_fpic_saved
!= 0 } {
346 set et_fpic_saved
[string match
"" [get_compiler_messages fpic object {
347 extern
int foo
(void
); extern
int bar
;
348 int baz
(void
) { return foo
() + bar
; }
352 verbose
"check_effective_target_fpic: returning $et_fpic_saved" 2
353 return $et_fpic_saved
356 #
Return true
if iconv is supported
on the target. In particular IBM1047.
358 proc check_iconv_available
{ test_what
} {
366 verbose
"check_iconv_available compiling testfile $src" 2
367 set f
[open $src
"w"]
368 #
Compile a small test
program.
369 puts $f
"#include <iconv.h>\n"
370 puts $f
"int main (void)\n {\n iconv_t cd; \n"
371 puts $f
"cd = iconv_open (\"[lindex $test_what 1]\", \"UTF-8\");\n"
372 puts $f
"if (cd == (iconv_t) -1)\n return 1;\n"
373 puts $f
"return 0;\n}"
376 #
If the tool configuration file has not
set libiconv
, try
"-liconv"
377 if { ![info exists libiconv
] } {
378 set libiconv
"-liconv"
380 set lines
[$
{tool
}_target_compile $src $exe executable
"libs=$libiconv" ]
383 if [string match
"" $lines] then {
384 # No error messages
, everything is OK.
386 set result
[$
{tool
}_load
"./$exe" "" ""]
387 set status [lindex $result
0]
388 remote_file build
delete $exe
390 verbose
"check_iconv_available status is <$status>" 2
392 if { $
status == "pass" } then {
400 #
Return true
if named sections are supported
on this target.
401 # This proc does not
cache results
, because the answer may vary
402 # when cycling over subtarget options
(e.g. irix o32
/n32
/n64
) in
404 proc check_named_sections_available
{ } {
405 verbose
"check_named_sections_available: compiling source" 2
406 set answer
[string match
"" [get_compiler_messages named object {
407 int __attribute__
((section
("whatever"))) foo;
409 verbose
"check_named_sections_available: returning $answer" 2
413 #
Return 1 if the target supports Fortran real kinds larger than real
(8),
414 #
0 otherwise.
Cache the result.
416 proc check_effective_target_fortran_large_real
{ } {
417 global et_fortran_large_real_saved
420 if [info exists et_fortran_large_real_saved
] {
421 verbose
"check_effective_target_fortran_large_real returning saved $et_fortran_large_real_saved" 2
423 set et_fortran_large_real_saved
0
425 #
Set up
, compile, and
execute a test
program using large real
426 # kinds.
Include the current process ID in the file names to
427 # prevent conflicts with invocations
for multiple testsuites.
428 set src real
[pid
].f90
431 set f
[open $src
"w"]
432 puts $f
"integer,parameter :: k = &"
433 puts $f
" selected_real_kind (precision (0.0_8) + 1)"
434 puts $f
"real(kind=k) :: x"
438 verbose
"check_effective_target_fortran_large_real compiling testfile $src" 2
439 set lines
[$
{tool
}_target_compile $src $exe executable
""]
442 if [string match
"" $lines] then {
443 # No error message
, compilation succeeded.
444 set et_fortran_large_real_saved
1
448 return $et_fortran_large_real_saved
451 #
Return 1 if the target supports Fortran
integer kinds larger than
452 #
integer(8), 0 otherwise.
Cache the result.
454 proc check_effective_target_fortran_large_int
{ } {
455 global et_fortran_large_int_saved
458 if [info exists et_fortran_large_int_saved
] {
459 verbose
"check_effective_target_fortran_large_int returning saved $et_fortran_large_int_saved" 2
461 set et_fortran_large_int_saved
0
463 #
Set up
, compile, and
execute a test
program using large
integer
464 # kinds.
Include the current process ID in the file names to
465 # prevent conflicts with invocations
for multiple testsuites.
469 set f
[open $src
"w"]
470 puts $f
"integer,parameter :: k = &"
471 puts $f
" selected_int_kind (range (0_8) + 1)"
472 puts $f
"integer(kind=k) :: i"
476 verbose
"check_effective_target_fortran_large_int compiling testfile $src" 2
477 set lines
[$
{tool
}_target_compile $src $exe executable
""]
480 if [string match
"" $lines] then {
481 # No error message
, compilation succeeded.
482 set et_fortran_large_int_saved
1
486 return $et_fortran_large_int_saved
489 #
Return 1 if the target supports executing AltiVec instructions
, 0
490 # otherwise.
Cache the result.
492 proc check_vmx_hw_available
{ } {
493 global vmx_hw_available_saved
496 if [info exists vmx_hw_available_saved
] {
497 verbose
"check_hw_available returning saved $vmx_hw_available_saved" 2
499 set vmx_hw_available_saved
0
501 # Some simulators are known to not support VMX instructions.
502 if { [istarget powerpc
-*-eabi
] ||
[istarget powerpc
*-*-eabispe
] } {
503 verbose
"check_hw_available returning 0" 2
504 return $vmx_hw_available_saved
507 #
Set up
, compile, and
execute a test
program containing VMX
508 # instructions.
Include the current process ID in the file
509 # names to prevent conflicts with invocations
for multiple
514 set f
[open $src
"w"]
515 puts $f
"int main() {"
516 puts $f
"#ifdef __MACH__"
517 puts $f
" asm volatile (\"vor v0,v0,v0\");"
519 puts $f
" asm volatile (\"vor 0,0,0\");"
521 puts $f
" return 0; }"
524 # Most targets don
't require special flags for this test case, but
526 if [istarget *-*-darwin*] {
527 set opts "additional_flags=-maltivec"
532 verbose "check_vmx_hw_available compiling testfile $src" 2
533 set lines [${tool}_target_compile $src $exe executable "$opts"]
536 if [string match "" $lines] then {
537 # No error message, compilation succeeded.
538 set result [${tool}_load "./$exe" "" ""]
539 set status [lindex $result 0]
540 remote_file build delete $exe
541 verbose "check_vmx_hw_available testfile status is <$status>" 2
543 if { $status == "pass" } then {
544 set vmx_hw_available_saved 1
547 verbose "check_vmx_hw_availalble testfile compilation failed" 2
551 return $vmx_hw_available_saved
554 # GCC 3.4.0 for powerpc64-*-linux* included an ABI fix for passing
555 # complex float arguments. This affects gfortran tests that call cabsf
556 # in libm built by an earlier compiler. Return 1 if libm uses the same
557 # argument passing as the compiler under test, 0 otherwise.
559 # When the target name changes, replace the cached result.
561 proc check_effective_target_broken_cplxf_arg { } {
562 global et_broken_cplxf_arg_saved
563 global et_broken_cplxf_arg_target_name
566 # Skip the work for targets known not to be affected.
567 if { ![istarget powerpc64-*-linux*] } {
569 } elseif { [is-effective-target ilp32] } {
573 if { ![info exists et_broken_cplxf_arg_target_name] } {
574 set et_broken_cplxf_arg_target_name ""
577 # If the target has changed since we set the cached value, clear it.
578 set current_target [current_target_name]
579 if { $current_target != $et_broken_cplxf_arg_target_name } {
580 verbose "check_effective_target_broken_cplxf_arg: `$et_broken_cplxf_arg_target_name'" 2
581 set et_broken_cplxf_arg_target_name $current_target
582 if [info exists et_broken_cplxf_arg_saved
] {
583 verbose
"check_effective_target_broken_cplxf_arg: removing cached result" 2
584 unset et_broken_cplxf_arg_saved
588 if [info exists et_broken_cplxf_arg_saved
] {
589 verbose
"check_effective_target_broken_cplxf_arg: using cached result" 2
591 set et_broken_cplxf_arg_saved
0
592 # This is only known to affect one target.
593 if { ![istarget powerpc64
-*-linux
*] ||
![is
-effective
-target lp64
] } {
594 set et_broken_cplxf_arg_saved
0
595 verbose
"check_effective_target_broken_cplxf_arg: caching 0" 2
596 return $et_broken_cplxf_arg_saved
599 #
Set up
, compile, and
execute a C test
program that calls cabsf.
603 set f
[open $src
"w"]
604 puts $f
"#include <complex.h>"
605 puts $f
"extern void abort (void);"
606 puts $f
"float fabsf (float);"
607 puts $f
"float cabsf (_Complex float);"
608 puts $f
"int main ()"
610 puts $f
" _Complex float cf;"
612 puts $f
" cf = 3 + 4.0fi;"
613 puts $f
" f = cabsf (cf);"
614 puts $f
" if (fabsf (f - 5.0) > 0.0001) abort ();"
619 set lines
[$
{tool
}_target_compile $src $exe executable
"-lm"]
622 if [string match
"" $lines] {
623 # No error message
, compilation succeeded.
624 set result
[$
{tool
}_load
"./$exe" "" ""]
625 set status [lindex $result
0]
626 remote_file build
delete $exe
628 verbose
"check_effective_target_broken_cplxf_arg: status is <$status>" 2
630 if { $
status != "pass" } {
631 set et_broken_cplxf_arg_saved
1
634 verbose
"check_effective_target_broken_cplxf_arg: compilation failed" 2
637 return $et_broken_cplxf_arg_saved
640 proc check_alpha_max_hw_available
{ } {
641 global alpha_max_hw_available_saved
644 if [info exists alpha_max_hw_available_saved
] {
645 verbose
"check_alpha_max_hw_available returning saved $alpha_max_hw_available_saved" 2
647 set alpha_max_hw_available_saved
0
649 #
Set up
, compile, and
execute a test
program probing bit
8 of the
650 # architecture mask
, which indicates presence of
MAX instructions.
654 set f
[open $src
"w"]
655 puts $f
"int main() { return __builtin_alpha_amask(1<<8) != 0; }"
658 verbose
"check_alpha_max_hw_available compiling testfile $src" 2
659 set lines
[$
{tool
}_target_compile $src $exe executable
""]
662 if [string match
"" $lines] then {
663 # No error message
, compilation succeeded.
664 set result
[$
{tool
}_load
"./$exe" "" ""]
665 set status [lindex $result
0]
666 remote_file build
delete $exe
667 verbose
"check_alpha_max_hw_available testfile status is <$status>" 2
669 if { $
status == "pass" } then {
670 set alpha_max_hw_available_saved
1
673 verbose
"check_alpha_max_hw_availalble testfile compilation failed" 2
677 return $alpha_max_hw_available_saved
680 # Returns true iff the FUNCTION is available
on the target
system.
681 #
(This is essentially a Tcl implementation of Autoconf
's
684 proc check_function_available { function } {
685 set var "${function}_available_saved"
689 if {![info exists $var]} {
692 # Check to make sure.
693 set src "function[pid].c"
694 set exe "function[pid].exe"
696 set f [open $src "w"]
697 puts $f "int main () { $function (); }"
700 set lines [${tool}_target_compile $src $exe executable ""]
704 if {![string match "" $lines]} then {
706 verbose -log "$function is not available"
708 verbose -log "$function is available"
715 # Returns true iff "fork" is available on the target system.
717 proc check_fork_available {} {
718 return [check_function_available "fork"]
721 # Returns true iff "mkfifo" is available on the target system.
723 proc check_mkfifo_available {} {
724 if {[istarget *-*-cygwin*]} {
725 # Cygwin has mkfifo, but support is incomplete.
729 return [check_function_available "mkfifo"]
732 # Return 1 if we're generating
32-bit code using default options
, 0
735 # When the target
name changes
, replace the cached result.
737 proc check_effective_target_ilp32
{ } {
738 global et_ilp32_saved
739 global et_ilp32_target_name
741 if { ![info exists et_ilp32_target_name
] } {
742 set et_ilp32_target_name
""
745 #
If the target has changed since we
set the cached value
, clear it.
746 set current_target
[current_target_name
]
747 if { $current_target
!= $et_ilp32_target_name
} {
748 verbose
"check_effective_target_ilp32: `$et_ilp32_target_name' `$current_target'" 2
749 set et_ilp32_target_name $current_target
750 if { [info exists et_ilp32_saved
] } {
751 verbose
"check_effective_target_ilp32: removing cached result" 2
756 if [info exists et_ilp32_saved
] {
757 verbose
"check-effective_target_ilp32: using cached result" 2
759 verbose
"check_effective_target_ilp32: compiling source" 2
760 set et_ilp32_saved
[string match
"" [get_compiler_messages ilp32 object {
761 int dummy
[(sizeof
(int) == 4 && sizeof
(void
*) == 4 && sizeof
(long
) == 4 ) ?
1 : -1];
764 verbose
"check_effective_target_ilp32: returning $et_ilp32_saved" 2
765 return $et_ilp32_saved
768 #
Return 1 if we
're generating 64-bit code using default options, 0
771 # When the target name changes, replace the cached result.
773 proc check_effective_target_lp64 { } {
775 global et_lp64_target_name
777 if { ![info exists et_lp64_target_name] } {
778 set et_lp64_target_name ""
781 # If the target has changed since we set the cached value, clear it.
782 set current_target [current_target_name]
783 if { $current_target != $et_lp64_target_name } {
784 verbose "check_effective_target_lp64: `$et_lp64_target_name' `$current_target
'" 2
785 set et_lp64_target_name $current_target
786 if [info exists et_lp64_saved] {
787 verbose "check_effective_target_lp64: removing cached result" 2
792 if [info exists et_lp64_saved] {
793 verbose "check_effective_target_lp64: using cached result" 2
795 verbose "check_effective_target_lp64: compiling source" 2
796 set et_lp64_saved [string match "" [get_compiler_messages lp64 object {
797 int dummy[(sizeof (int) == 4 && sizeof (void *) == 8 && sizeof (long) == 8 ) ? 1 : -1];
800 verbose "check_effective_target_lp64: returning $et_lp64_saved" 2
801 return $et_lp64_saved
804 # Return 1 if the target needs a command line argument to enable a SIMD
807 # This won't change
for different subtargets so
cache the result.
809 proc check_effective_target_vect_cmdline_needed
{ } {
810 global et_vect_cmdline_needed_saved
812 if [info exists et_vect_cmdline_needed_saved
] {
813 verbose
"check_effective_target_vect_cmdline_needed: using cached result" 2
815 set et_vect_cmdline_needed_saved
1
816 if { [istarget ia64
-*-*]
817 ||
[istarget x86_64
-*-*] } {
818 set et_vect_cmdline_needed_saved
0
822 verbose
"check_effective_target_vect_cmdline_needed: returning $et_vect_cmdline_needed_saved" 2
823 return $et_vect_cmdline_needed_saved
826 #
Return 1 if the target supports hardware vectors of
int, 0 otherwise.
828 # This won
't change for different subtargets so cache the result.
830 proc check_effective_target_vect_int { } {
831 global et_vect_int_saved
833 if [info exists et_vect_int_saved] {
834 verbose "check_effective_target_vect_int: using cached result" 2
836 set et_vect_int_saved 0
837 if { [istarget i?86-*-*]
838 || [istarget powerpc*-*-*]
839 || [istarget x86_64-*-*]
840 || [istarget sparc*-*-*]
841 || [istarget alpha*-*-*]
842 || [istarget ia64-*-*] } {
843 set et_vect_int_saved 1
847 verbose "check_effective_target_vect_int: returning $et_vect_int_saved" 2
848 return $et_vect_int_saved
851 # Return 1 is this is an arm target using 32-bit instructions
852 proc check_effective_target_arm32 { } {
853 global et_arm32_saved
854 global et_arm32_target_name
855 global compiler_flags
857 if { ![info exists et_arm32_target_name] } {
858 set et_arm32_target_name ""
861 # If the target has changed since we set the cached value, clear it.
862 set current_target [current_target_name]
863 if { $current_target != $et_arm32_target_name } {
864 verbose "check_effective_target_arm32: `$et_arm32_target_name' `$current_target
'" 2
865 set et_arm32_target_name $current_target
866 if { [info exists et_arm32_saved] } {
867 verbose "check_effective_target_arm32: removing cached result" 2
872 if [info exists et_arm32_saved] {
873 verbose "check-effective_target_arm32: using cached result" 2
876 if { [istarget arm-*-*]
877 || [istarget strongarm*-*-*]
878 || [istarget xscale-*-*] } {
879 if ![string match "*-mthumb *" $compiler_flags] {
884 verbose "check_effective_target_arm32: returning $et_arm32_saved" 2
885 return $et_arm32_saved
888 # Return 1 if the target supports hardware vector shift operation.
890 proc check_effective_target_vect_shift { } {
891 global et_vect_shift_saved
893 if [info exists et_vect_shift_saved] {
894 verbose "check_effective_target_vect_shift: using cached result" 2
896 set et_vect_shift_saved 0
897 if { [istarget powerpc*-*-*]
898 || [istarget ia64-*-*]
899 || [istarget i?86-*-*]
900 || [istarget x86_64-*-*] } {
901 set et_vect_shift_saved 1
905 verbose "check_effective_target_vect_shift: returning $et_vect_shift_saved" 2
906 return $et_vect_shift_saved
909 # Return 1 if the target supports hardware vectors of long, 0 otherwise.
911 # This can change for different subtargets so do not cache the result.
913 proc check_effective_target_vect_long { } {
914 if { [istarget i?86-*-*]
915 || ([istarget powerpc*-*-*] && [check_effective_target_ilp32])
916 || [istarget x86_64-*-*]
917 || ([istarget sparc*-*-*] && [check_effective_target_ilp32]) } {
923 verbose "check_effective_target_vect_long: returning $answer" 2
927 # Return 1 if the target supports hardware vectors of float, 0 otherwise.
929 # This won't change
for different subtargets so
cache the result.
931 proc check_effective_target_vect_float
{ } {
932 global et_vect_float_saved
934 if [info exists et_vect_float_saved
] {
935 verbose
"check_effective_target_vect_float: using cached result" 2
937 set et_vect_float_saved
0
938 if { [istarget i?
86-*-*]
939 ||
[istarget powerpc
*-*-*]
940 ||
[istarget mipsisa64
*-*-*]
941 ||
[istarget x86_64
-*-*]
942 ||
[istarget ia64
-*-*] } {
943 set et_vect_float_saved
1
947 verbose
"check_effective_target_vect_float: returning $et_vect_float_saved" 2
948 return $et_vect_float_saved
951 #
Return 1 if the target supports hardware vectors of double
, 0 otherwise.
953 # This won
't change for different subtargets so cache the result.
955 proc check_effective_target_vect_double { } {
956 global et_vect_double_saved
958 if [info exists et_vect_double_saved] {
959 verbose "check_effective_target_vect_double: using cached result" 2
961 set et_vect_double_saved 0
962 if { [istarget i?86-*-*]
963 || [istarget x86_64-*-*] } {
964 set et_vect_double_saved 1
968 verbose "check_effective_target_vect_double: returning $et_vect_double_saved" 2
969 return $et_vect_double_saved
972 # Return 1 if the target plus current options does not support a vector
973 # max instruction on "int", 0 otherwise.
975 # This won't change
for different subtargets so
cache the result.
977 proc check_effective_target_vect_no_int_max
{ } {
978 global et_vect_no_int_max_saved
980 if [info exists et_vect_no_int_max_saved
] {
981 verbose
"check_effective_target_vect_no_int_max: using cached result" 2
983 set et_vect_no_int_max_saved
0
984 if { [istarget sparc
*-*-*]
985 ||
[istarget alpha
*-*-*] } {
986 set et_vect_no_int_max_saved
1
989 verbose
"check_effective_target_vect_no_int_max: returning $et_vect_no_int_max_saved" 2
990 return $et_vect_no_int_max_saved
993 #
Return 1 if the target plus current options does not support a vector
994 # add instruction
on "int", 0 otherwise.
996 # This won
't change for different subtargets so cache the result.
998 proc check_effective_target_vect_no_int_add { } {
999 global et_vect_no_int_add_saved
1001 if [info exists et_vect_no_int_add_saved] {
1002 verbose "check_effective_target_vect_no_int_add: using cached result" 2
1004 set et_vect_no_int_add_saved 0
1005 # Alpha only supports vector add on V8QI and V4HI.
1006 if { [istarget alpha*-*-*] } {
1007 set et_vect_no_int_add_saved 1
1010 verbose "check_effective_target_vect_no_int_add: returning $et_vect_no_int_add_saved" 2
1011 return $et_vect_no_int_add_saved
1014 # Return 1 if the target plus current options does not support vector
1015 # bitwise instructions, 0 otherwise.
1017 # This won't change
for different subtargets so
cache the result.
1019 proc check_effective_target_vect_no_bitwise
{ } {
1020 global et_vect_no_bitwise_saved
1022 if [info exists et_vect_no_bitwise_saved
] {
1023 verbose
"check_effective_target_vect_no_bitwise: using cached result" 2
1025 set et_vect_no_bitwise_saved
0
1027 verbose
"check_effective_target_vect_no_bitwise: returning $et_vect_no_bitwise_saved" 2
1028 return $et_vect_no_bitwise_saved
1031 #
Return 1 if the target plus current options does not support a vector
1032 # alignment mechanism
, 0 otherwise.
1034 # This won
't change for different subtargets so cache the result.
1036 proc check_effective_target_vect_no_align { } {
1037 global et_vect_no_align_saved
1039 if [info exists et_vect_no_align_saved] {
1040 verbose "check_effective_target_vect_no_align: using cached result" 2
1042 set et_vect_no_align_saved 0
1043 if { [istarget mipsisa64*-*-*]
1044 || [istarget sparc*-*-*]
1045 || [istarget ia64-*-*] } {
1046 set et_vect_no_align_saved 1
1049 verbose "check_effective_target_vect_no_align: returning $et_vect_no_align_saved" 2
1050 return $et_vect_no_align_saved
1053 # Return 1 if the target supports vector conditional operations, 0 otherwise.
1055 proc check_effective_target_vect_condition { } {
1056 global et_vect_cond_saved
1058 if [info exists et_vect_cond_saved] {
1059 verbose "check_effective_target_vect_cond: using cached result" 2
1061 set et_vect_cond_saved 0
1062 if { [istarget powerpc*-*-*]
1063 || [istarget ia64-*-*]
1064 || [istarget i?86-*-*]
1065 || [istarget x86_64-*-*] } {
1066 set et_vect_cond_saved 1
1070 verbose "check_effective_target_vect_cond: returning $et_vect_cond_saved" 2
1071 return $et_vect_cond_saved
1074 # Return 1 if the target supports vector int multiplication, 0 otherwise.
1076 proc check_effective_target_vect_int_mult { } {
1077 global et_vect_int_mult_saved
1079 if [info exists et_vect_int_mult_saved] {
1080 verbose "check_effective_target_vect_int_mult: using cached result" 2
1082 set et_vect_int_mult_saved 0
1083 if { [istarget powerpc*-*-*]
1084 || [istarget i?86-*-*]
1085 || [istarget x86_64-*-*] } {
1086 set et_vect_int_mult_saved 1
1090 verbose "check_effective_target_vect_int_mult: returning $et_vect_int_mult_saved" 2
1091 return $et_vect_int_mult_saved
1094 # Return 1 if the target supports atomic operations on "int" and "long".
1096 proc check_effective_target_sync_int_long { } {
1097 global et_sync_int_long_saved
1099 if [info exists et_sync_int_long_saved] {
1100 verbose "check_effective_target_sync_int_long: using cached result" 2
1102 set et_sync_int_long_saved 0
1103 # This is intentionally powerpc but not rs6000, rs6000 doesn't have the
1104 #
load-reserved/store
-conditional instructions.
1105 if { [istarget ia64
-*-*]
1106 ||
[istarget i?
86-*-*]
1107 ||
[istarget x86_64
-*-*]
1108 ||
[istarget alpha
*-*-*]
1109 ||
[istarget s390
*-*-*]
1110 ||
[istarget powerpc
*-*-*] } {
1111 set et_sync_int_long_saved
1
1115 verbose
"check_effective_target_sync_int_long: returning $et_sync_int_long_saved" 2
1116 return $et_sync_int_long_saved
1119 #
Return 1 if the target supports atomic operations
on "char" and "short".
1121 proc check_effective_target_sync_char_short
{ } {
1122 global et_sync_char_short_saved
1124 if [info exists et_sync_char_short_saved
] {
1125 verbose
"check_effective_target_sync_char_short: using cached result" 2
1127 set et_sync_char_short_saved
0
1128 # This is intentionally powerpc but not rs6000
, rs6000 doesn
't have the
1129 # load-reserved/store-conditional instructions.
1130 if { [istarget ia64-*-*]
1131 || [istarget i?86-*-*]
1132 || [istarget x86_64-*-*]
1133 || [istarget alpha*-*-*]
1134 || [istarget powerpc*-*-*] } {
1135 set et_sync_char_short_saved 1
1139 verbose "check_effective_target_sync_char_short: returning $et_sync_char_short_saved" 2
1140 return $et_sync_char_short_saved
1143 # Return 1 if the target matches the effective target 'arg', 0 otherwise.
1144 # This can be used with any check_* proc that takes no argument and
1145 # returns only 1 or 0. It could be used with check_* procs that take
1146 # arguments with keywords that pass particular arguments.
1148 proc is-effective-target { arg } {
1150 if { [info procs check_effective_target_${arg}] != [list] } {
1151 set selected [check_effective_target_${arg}]
1154 "vmx_hw" { set selected [check_vmx_hw_available] }
1155 "named_sections" { set selected [check_named_sections_available] }
1156 "gc_sections" { set selected [check_gc_sections_available] }
1157 default { error "unknown effective target keyword `$arg'" }
1160 verbose
"is-effective-target: $arg $selected" 2
1164 #
Return 1 if the
argument is an effective
-target keyword
, 0 otherwise.
1166 proc is
-effective
-target
-keyword
{ arg } {
1167 if { [info procs check_effective_target_$
{arg}] != [list
] } {
1170 # These have different names
for their check_
* procs.
1172 "vmx_hw" { return 1 }
1173 "named_sections" { return 1 }
1174 "gc_sections" { return 1 }
1175 default
{ return 0 }