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.
, 59 Temple Place
- Suite
330, Boston
, MA
02111-1307, 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 executing AltiVec instructions
, 0
414 # otherwise.
Cache the result.
416 proc check_vmx_hw_available
{ } {
417 global vmx_hw_available_saved
420 if [info exists vmx_hw_available_saved
] {
421 verbose
"check_hw_available returning saved $vmx_hw_available_saved" 2
423 set vmx_hw_available_saved
0
425 # Some simulators are known to not support VMX instructions.
426 if { [istarget powerpc
-*-eabi
] ||
[istarget powerpc
*-*-eabispe
] } {
427 verbose
"check_hw_available returning 0" 2
428 return $vmx_hw_available_saved
431 #
Set up
, compile, and
execute a test
program containing VMX
432 # instructions.
Include the current process ID in the file
433 # names to prevent conflicts with invocations
for multiple
438 set f
[open $src
"w"]
439 puts $f
"int main() {"
440 puts $f
"#ifdef __MACH__"
441 puts $f
" asm volatile (\"vor v0,v0,v0\");"
443 puts $f
" asm volatile (\"vor 0,0,0\");"
445 puts $f
" return 0; }"
448 # Most targets don
't require special flags for this test case, but
450 if [istarget *-*-darwin*] {
451 set opts "additional_flags=-maltivec"
456 verbose "check_vmx_hw_available compiling testfile $src" 2
457 set lines [${tool}_target_compile $src $exe executable "$opts"]
460 if [string match "" $lines] then {
461 # No error message, compilation succeeded.
462 set result [${tool}_load "./$exe" "" ""]
463 set status [lindex $result 0]
464 remote_file build delete $exe
465 verbose "check_vmx_hw_available testfile status is <$status>" 2
467 if { $status == "pass" } then {
468 set vmx_hw_available_saved 1
471 verbose "check_vmx_hw_availalble testfile compilation failed" 2
475 return $vmx_hw_available_saved
478 # GCC 3.4.0 for powerpc64-*-linux* included an ABI fix for passing
479 # complex float arguments. This affects gfortran tests that call cabsf
480 # in libm built by an earlier compiler. Return 1 if libm uses the same
481 # argument passing as the compiler under test, 0 otherwise.
483 # When the target name changes, replace the cached result.
485 proc check_effective_target_broken_cplxf_arg { } {
486 global et_broken_cplxf_arg_saved
487 global et_broken_cplxf_arg_target_name
490 # Skip the work for targets known not to be affected.
491 if { ![istarget powerpc64-*-linux*] } {
493 } elseif { [is-effective-target ilp32] } {
497 if { ![info exists et_broken_cplxf_arg_target_name] } {
498 set et_broken_cplxf_arg_target_name ""
501 # If the target has changed since we set the cached value, clear it.
502 set current_target [current_target_name]
503 if { $current_target != $et_broken_cplxf_arg_target_name } {
504 verbose "check_effective_target_broken_cplxf_arg: `$et_broken_cplxf_arg_target_name'" 2
505 set et_broken_cplxf_arg_target_name $current_target
506 if [info exists et_broken_cplxf_arg_saved
] {
507 verbose
"check_effective_target_broken_cplxf_arg: removing cached result" 2
508 unset et_broken_cplxf_arg_saved
512 if [info exists et_broken_cplxf_arg_saved
] {
513 verbose
"check_effective_target_broken_cplxf_arg: using cached result" 2
515 set et_broken_cplxf_arg_saved
0
516 # This is only known to affect one target.
517 if { ![istarget powerpc64
-*-linux
*] ||
![is
-effective
-target lp64
] } {
518 set et_broken_cplxf_arg_saved
0
519 verbose
"check_effective_target_broken_cplxf_arg: caching 0" 2
520 return $et_broken_cplxf_arg_saved
523 #
Set up
, compile, and
execute a C test
program that calls cabsf.
527 set f
[open $src
"w"]
528 puts $f
"#include <complex.h>"
529 puts $f
"extern void abort (void);"
530 puts $f
"float fabsf (float);"
531 puts $f
"float cabsf (_Complex float);"
532 puts $f
"int main ()"
534 puts $f
" _Complex float cf;"
536 puts $f
" cf = 3 + 4.0fi;"
537 puts $f
" f = cabsf (cf);"
538 puts $f
" if (fabsf (f - 5.0) > 0.0001) abort ();"
543 set lines
[$
{tool
}_target_compile $src $exe executable
"-lm"]
546 if [string match
"" $lines] {
547 # No error message
, compilation succeeded.
548 set result
[$
{tool
}_load
"./$exe" "" ""]
549 set status [lindex $result
0]
550 remote_file build
delete $exe
552 verbose
"check_effective_target_broken_cplxf_arg: status is <$status>" 2
554 if { $
status != "pass" } {
555 set et_broken_cplxf_arg_saved
1
558 verbose
"check_effective_target_broken_cplxf_arg: compilation failed" 2
561 return $et_broken_cplxf_arg_saved
564 proc check_alpha_max_hw_available
{ } {
565 global alpha_max_hw_available_saved
568 if [info exists alpha_max_hw_available_saved
] {
569 verbose
"check_alpha_max_hw_available returning saved $alpha_max_hw_available_saved" 2
571 set alpha_max_hw_available_saved
0
573 #
Set up
, compile, and
execute a test
program probing bit
8 of the
574 # architecture mask
, which indicates presence of
MAX instructions.
578 set f
[open $src
"w"]
579 puts $f
"int main() { return __builtin_alpha_amask(1<<8) != 0; }"
582 verbose
"check_alpha_max_hw_available compiling testfile $src" 2
583 set lines
[$
{tool
}_target_compile $src $exe executable
""]
586 if [string match
"" $lines] then {
587 # No error message
, compilation succeeded.
588 set result
[$
{tool
}_load
"./$exe" "" ""]
589 set status [lindex $result
0]
590 remote_file build
delete $exe
591 verbose
"check_alpha_max_hw_available testfile status is <$status>" 2
593 if { $
status == "pass" } then {
594 set alpha_max_hw_available_saved
1
597 verbose
"check_alpha_max_hw_availalble testfile compilation failed" 2
601 return $alpha_max_hw_available_saved
604 # Returns true iff the FUNCTION is available
on the target
system.
605 #
(This is essentially a Tcl implementation of Autoconf
's
608 proc check_function_available { function } {
609 set var "${function}_available_saved"
613 if {![info exists $var]} {
616 # Check to make sure.
617 set src "function[pid].c"
618 set exe "function[pid].exe"
620 set f [open $src "w"]
621 puts $f "int main () { $function (); }"
624 set lines [${tool}_target_compile $src $exe executable ""]
628 if {![string match "" $lines]} then {
630 verbose -log "$function is not available"
632 verbose -log "$function is available"
639 # Returns true iff "fork" is available on the target system.
641 proc check_fork_available {} {
642 return [check_function_available "fork"]
645 # Returns true iff "mkfifo" is available on the target system.
647 proc check_mkfifo_available {} {
648 if {[istarget *-*-cygwin*]} {
649 # Cygwin has mkfifo, but support is incomplete.
653 return [check_function_available "mkfifo"]
656 # Return 1 if we're generating
32-bit code using default options
, 0
659 # When the target
name changes
, replace the cached result.
661 proc check_effective_target_ilp32
{ } {
662 global et_ilp32_saved
663 global et_ilp32_target_name
665 if { ![info exists et_ilp32_target_name
] } {
666 set et_ilp32_target_name
""
669 #
If the target has changed since we
set the cached value
, clear it.
670 set current_target
[current_target_name
]
671 if { $current_target
!= $et_ilp32_target_name
} {
672 verbose
"check_effective_target_ilp32: `$et_ilp32_target_name' `$current_target'" 2
673 set et_ilp32_target_name $current_target
674 if { [info exists et_ilp32_saved
] } {
675 verbose
"check_effective_target_ilp32: removing cached result" 2
680 if [info exists et_ilp32_saved
] {
681 verbose
"check-effective_target_ilp32: using cached result" 2
683 verbose
"check_effective_target_ilp32: compiling source" 2
684 set et_ilp32_saved
[string match
"" [get_compiler_messages ilp32 object {
685 int dummy
[(sizeof
(int) == 4 && sizeof
(void
*) == 4 && sizeof
(long
) == 4 ) ?
1 : -1];
688 verbose
"check_effective_target_ilp32: returning $et_ilp32_saved" 2
689 return $et_ilp32_saved
692 #
Return 1 if we
're generating 64-bit code using default options, 0
695 # When the target name changes, replace the cached result.
697 proc check_effective_target_lp64 { } {
699 global et_lp64_target_name
701 if { ![info exists et_lp64_target_name] } {
702 set et_lp64_target_name ""
705 # If the target has changed since we set the cached value, clear it.
706 set current_target [current_target_name]
707 if { $current_target != $et_lp64_target_name } {
708 verbose "check_effective_target_lp64: `$et_lp64_target_name' `$current_target
'" 2
709 set et_lp64_target_name $current_target
710 if [info exists et_lp64_saved] {
711 verbose "check_effective_target_lp64: removing cached result" 2
716 if [info exists et_lp64_saved] {
717 verbose "check_effective_target_lp64: using cached result" 2
719 verbose "check_effective_target_lp64: compiling source" 2
720 set et_lp64_saved [string match "" [get_compiler_messages lp64 object {
721 int dummy[(sizeof (int) == 4 && sizeof (void *) == 8 && sizeof (long) == 8 ) ? 1 : -1];
724 verbose "check_effective_target_lp64: returning $et_lp64_saved" 2
725 return $et_lp64_saved
728 # Return 1 if the target needs a command line argument to enable a SIMD
731 # This won't change
for different subtargets so
cache the result.
733 proc check_effective_target_vect_cmdline_needed
{ } {
734 global et_vect_cmdline_needed_saved
736 if [info exists et_vect_cmdline_needed_saved
] {
737 verbose
"check_effective_target_vect_cmdline_needed: using cached result" 2
739 set et_vect_cmdline_needed_saved
1
740 if { [istarget ia64
-*-*]
741 ||
[istarget x86_64
-*-*] } {
742 set et_vect_cmdline_needed_saved
0
746 verbose
"check_effective_target_vect_cmdline_needed: returning $et_vect_cmdline_needed_saved" 2
747 return $et_vect_cmdline_needed_saved
750 #
Return 1 if the target supports hardware vectors of
int, 0 otherwise.
752 # This won
't change for different subtargets so cache the result.
754 proc check_effective_target_vect_int { } {
755 global et_vect_int_saved
757 if [info exists et_vect_int_saved] {
758 verbose "check_effective_target_vect_int: using cached result" 2
760 set et_vect_int_saved 0
761 if { [istarget i?86-*-*]
762 || [istarget powerpc*-*-*]
763 || [istarget x86_64-*-*]
764 || [istarget sparc*-*-*]
765 || [istarget alpha*-*-*]
766 || [istarget ia64-*-*] } {
767 set et_vect_int_saved 1
771 verbose "check_effective_target_vect_int: returning $et_vect_int_saved" 2
772 return $et_vect_int_saved
775 # Return 1 is this is an arm target using 32-bit instructions
776 proc check_effective_target_arm32 { } {
777 global et_arm32_saved
778 global et_arm32_target_name
779 global compiler_flags
781 if { ![info exists et_arm32_target_name] } {
782 set et_arm32_target_name ""
785 # If the target has changed since we set the cached value, clear it.
786 set current_target [current_target_name]
787 if { $current_target != $et_arm32_target_name } {
788 verbose "check_effective_target_arm32: `$et_arm32_target_name' `$current_target
'" 2
789 set et_arm32_target_name $current_target
790 if { [info exists et_arm32_saved] } {
791 verbose "check_effective_target_arm32: removing cached result" 2
796 if [info exists et_arm32_saved] {
797 verbose "check-effective_target_arm32: using cached result" 2
800 if { [istarget arm-*-*]
801 || [istarget strongarm*-*-*]
802 || [istarget xscale-*-*] } {
803 if ![string match "*-mthumb *" $compiler_flags] {
808 verbose "check_effective_target_arm32: returning $et_arm32_saved" 2
809 return $et_arm32_saved
812 # Return 1 if the target supports hardware vector shift operation.
814 proc check_effective_target_vect_shift { } {
815 if { [istarget powerpc*-*-*] } {
821 verbose "check_effective_target_vect_shift: returning $answer" 2
825 # Return 1 if the target supports hardware vectors of long, 0 otherwise.
827 # This can change for different subtargets so do not cache the result.
829 proc check_effective_target_vect_long { } {
830 if { [istarget i?86-*-*]
831 || ([istarget powerpc*-*-*] && [check_effective_target_ilp32])
832 || [istarget x86_64-*-*]
833 || ([istarget sparc*-*-*] && [check_effective_target_ilp32]) } {
839 verbose "check_effective_target_vect_long: returning $answer" 2
843 # Return 1 if the target supports hardware vectors of float, 0 otherwise.
845 # This won't change
for different subtargets so
cache the result.
847 proc check_effective_target_vect_float
{ } {
848 global et_vect_float_saved
850 if [info exists et_vect_float_saved
] {
851 verbose
"check_effective_target_vect_float: using cached result" 2
853 set et_vect_float_saved
0
854 if { [istarget i?
86-*-*]
855 ||
[istarget powerpc
*-*-*]
856 ||
[istarget mipsisa64
*-*-*]
857 ||
[istarget x86_64
-*-*]
858 ||
[istarget ia64
-*-*] } {
859 set et_vect_float_saved
1
863 verbose
"check_effective_target_vect_float: returning $et_vect_float_saved" 2
864 return $et_vect_float_saved
867 #
Return 1 if the target supports hardware vectors of double
, 0 otherwise.
869 # This won
't change for different subtargets so cache the result.
871 proc check_effective_target_vect_double { } {
872 global et_vect_double_saved
874 if [info exists et_vect_double_saved] {
875 verbose "check_effective_target_vect_double: using cached result" 2
877 set et_vect_double_saved 0
878 if { [istarget i?86-*-*]
879 || [istarget x86_64-*-*] } {
880 set et_vect_double_saved 1
884 verbose "check_effective_target_vect_double: returning $et_vect_double_saved" 2
885 return $et_vect_double_saved
888 # Return 1 if the target plus current options does not support a vector
889 # max instruction, 0 otherwise.
891 # This won't change
for different subtargets so
cache the result.
893 proc check_effective_target_vect_no_max
{ } {
894 global et_vect_no_max_saved
896 if [info exists et_vect_no_max_saved
] {
897 verbose
"check_effective_target_vect_no_max: using cached result" 2
899 set et_vect_no_max_saved
0
900 if { [istarget i?
86-*-*]
901 ||
[istarget x86_64
-*-*]
902 ||
[istarget sparc
*-*-*]
903 ||
[istarget alpha
*-*-*] } {
904 set et_vect_no_max_saved
1
907 verbose
"check_effective_target_vect_no_max: returning $et_vect_no_max_saved" 2
908 return $et_vect_no_max_saved
911 #
Return 1 if the target plus current options does not support vector
912 # bitwise instructions
, 0 otherwise.
914 # This won
't change for different subtargets so cache the result.
916 proc check_effective_target_vect_no_bitwise { } {
917 global et_vect_no_bitwise_saved
919 if [info exists et_vect_no_bitwise_saved] {
920 verbose "check_effective_target_vect_no_bitwise: using cached result" 2
922 set et_vect_no_bitwise_saved 0
924 verbose "check_effective_target_vect_no_bitwise: returning $et_vect_no_bitwise_saved" 2
925 return $et_vect_no_bitwise_saved
928 # Return 1 if the target plus current options does not support a vector
929 # alignment mechanism, 0 otherwise.
931 # This won't change
for different subtargets so
cache the result.
933 proc check_effective_target_vect_no_align
{ } {
934 global et_vect_no_align_saved
936 if [info exists et_vect_no_align_saved
] {
937 verbose
"check_effective_target_vect_no_align: using cached result" 2
939 set et_vect_no_align_saved
0
940 if { [istarget mipsisa64
*-*-*]
941 ||
[istarget sparc
*-*-*]
942 ||
[istarget ia64
-*-*] } {
943 set et_vect_no_align_saved
1
946 verbose
"check_effective_target_vect_no_align: returning $et_vect_no_align_saved" 2
947 return $et_vect_no_align_saved
950 #
Return 1 if the target supports vector conditional operations
, 0 otherwise.
952 proc check_effective_target_vect_condition
{ } {
953 global et_vect_cond_saved
955 if [info exists et_vect_int_cond
] {
956 verbose
"check_effective_target_vect_cond: using cached result" 2
958 set et_vect_cond_saved
0
959 if { [istarget powerpc
*-*-*]
960 ||
[istarget ia64
-*-*]
961 ||
[istarget i?
86-*-*]
962 ||
[istarget x86_64
-*-*] } {
963 set et_vect_cond_saved
1
967 verbose
"check_effective_target_vect_cond: returning $et_vect_cond_saved" 2
968 return $et_vect_cond_saved
971 #
Return 1 if the target supports vector
int multiplication
, 0 otherwise.
973 proc check_effective_target_vect_int_mult
{ } {
974 global et_vect_int_mult_saved
976 if [info exists et_vect_int_mult_saved
] {
977 verbose
"check_effective_target_vect_int_mult: using cached result" 2
979 set et_vect_int_mult_saved
0
980 if { [istarget powerpc
*-*-*]
981 ||
[istarget i?
86-*-*]
982 ||
[istarget x86_64
-*-*] } {
983 set et_vect_int_mult_saved
1
987 verbose
"check_effective_target_vect_int_mult: returning $et_vect_int_mult_saved" 2
988 return $et_vect_int_mult_saved
991 #
Return 1 if the target supports atomic operations
on "int" and "long".
993 proc check_effective_target_sync_int_long
{ } {
994 global et_sync_int_long_saved
996 if [info exists et_sync_int_long_saved
] {
997 verbose
"check_effective_target_sync_int_long: using cached result" 2
999 set et_sync_int_long_saved
0
1000 # This is intentionally powerpc but not rs6000
, rs6000 doesn
't have the
1001 # load-reserved/store-conditional instructions.
1002 if { [istarget ia64-*-*]
1003 || [istarget i?86-*-*]
1004 || [istarget x86_64-*-*]
1005 || [istarget alpha*-*-*]
1006 || [istarget s390*-*-*]
1007 || [istarget powerpc*-*-*] } {
1008 set et_sync_int_long_saved 1
1012 verbose "check_effective_target_sync_int_long: returning $et_sync_int_long_saved" 2
1013 return $et_sync_int_long_saved
1016 # Return 1 if the target supports atomic operations on "char" and "short".
1018 proc check_effective_target_sync_char_short { } {
1019 global et_sync_char_short_saved
1021 if [info exists et_sync_char_short_saved] {
1022 verbose "check_effective_target_sync_char_short: using cached result" 2
1024 set et_sync_char_short_saved 0
1025 # This is intentionally powerpc but not rs6000, rs6000 doesn't have the
1026 #
load-reserved/store
-conditional instructions.
1027 if { [istarget ia64
-*-*]
1028 ||
[istarget i?
86-*-*]
1029 ||
[istarget x86_64
-*-*]
1030 ||
[istarget powerpc
*-*-*] } {
1031 set et_sync_char_short_saved
1
1035 verbose
"check_effective_target_sync_char_short: returning $et_sync_char_short_saved" 2
1036 return $et_sync_char_short_saved
1039 #
Return 1 if the target matches the effective target
'arg', 0 otherwise.
1040 # This can be used with
any check_
* proc that takes no
argument and
1041 # returns only
1 or
0. It could be used with check_
* procs that take
1042 # arguments with keywords that pass particular arguments.
1044 proc is
-effective
-target
{ arg } {
1046 if { [info procs check_effective_target_$
{arg}] != [list
] } {
1047 set selected
[check_effective_target_$
{arg}]
1050 "vmx_hw" { set selected [check_vmx_hw_available] }
1051 "named_sections" { set selected [check_named_sections_available] }
1052 "gc_sections" { set selected [check_gc_sections_available] }
1053 default
{ error
"unknown effective target keyword `$arg'" }
1056 verbose
"is-effective-target: $arg $selected" 2
1060 #
Return 1 if the
argument is an effective
-target keyword
, 0 otherwise.
1062 proc is
-effective
-target
-keyword
{ arg } {
1063 if { [info procs check_effective_target_$
{arg}] != [list
] } {
1066 # These have different names
for their check_
* procs.
1068 "vmx_hw" { return 1 }
1069 "named_sections" { return 1 }
1070 "gc_sections" { return 1 }
1071 default
{ return 0 }