1 # Copyright (C) 1999, 2001, 2003, 2004, 2005, 2006
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 "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 { [regexp "hppa.*hpux10" $target_triplet] } {
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 powerpc-*-eabi*]
344 || [istarget strongarm*-*-elf]
345 || [istarget xscale*-*-elf]
346 || [istarget cris-*-*]
347 || [istarget h8300-*-*]
348 || [istarget m32c-*-elf]
349 || [istarget m68k-*-elf]
350 || [istarget mips*-*-elf]
351 || [istarget xtensa-*-elf]
352 || [istarget *-*-windiss] } {
353 set profiling_available_saved 0
355 set profiling_available_saved 1
359 return $profiling_available_saved
362 # Return 1 if target has packed layout of structure members by
363 # default, 0 otherwise. Note that this is slightly different than
364 # whether the target has "natural alignment": both attributes may be
367 proc check_effective_target_default_packed { } {
368 return [check_no_compiler_messages default_packed assembly {
369 struct x { char a; long b; } c;
370 int s[sizeof (c) == sizeof (char) + sizeof (long) ? 1 : -1];
374 # Return 1 if target has PCC_BITFIELD_TYPE_MATTERS defined. See
375 # documentation, where the test also comes from.
377 proc check_effective_target_pcc_bitfield_type_matters { } {
378 # PCC_BITFIELD_TYPE_MATTERS isn't just about unnamed or empty
379 # bitfields, but let's stick to the example code from the docs.
380 return [check_no_compiler_messages pcc_bitfield_type_matters assembly {
381 struct foo1 { char x; char :0; char y; };
382 struct foo2 { char x; int :0; char y; };
383 int s[sizeof (struct foo1) != sizeof (struct foo2) ? 1 : -1];
387 # Return 1 if thread local storage (TLS) is supported, 0 otherwise.
389 # This won't change for different subtargets so cache the result.
391 proc check_effective_target_tls {} {
395 if [info exists et_tls_saved] {
396 verbose "check_effective_target_tls: using cached result" 2
402 verbose "check_effective_target_tls: compiling testfile $src" 2
403 set f [open $src "w"]
404 # Compile a small test program.
405 puts $f "__thread int i;\n"
408 # Test for thread-local data supported by the platform.
410 [${tool}_target_compile $src $asm assembly ""]
412 if { [string match "*not supported*" $comp_output] } {
415 remove-build-file $asm
417 verbose "check_effective_target_tls: returning $et_tls_saved" 2
421 # Return 1 if TLS executables can run correctly, 0 otherwise.
423 # This won't change for different subtargets so cache the result.
425 proc check_effective_target_tls_runtime {} {
426 global et_tls_runtime_saved
429 if [info exists et_tls_runtime_saved] {
430 verbose "check_effective_target_tls_runtime: using cached result" 2
432 set et_tls_runtime_saved 0
434 set src tls_runtime[pid].c
435 set exe tls_runtime[pid].x
436 verbose "check_effective_target_tls_runtime: compiling testfile $src" 2
437 set f [open $src "w"]
438 # Compile a small test program.
439 puts $f "__thread int thr = 0;\n"
440 puts $f "int main(void)\n {\n return thr;\n}"
444 [${tool}_target_compile $src $exe executable ""]
447 if [string match "" $comp_output] then {
448 # No error messages, everything is OK.
450 set result [remote_load target "./$exe" "" ""]
451 set status [lindex $result 0]
452 remote_file build delete $exe
454 verbose "check_effective_target_tls_runtime status is <$status>" 2
456 if { $status == "pass" } {
457 set et_tls_runtime_saved 1
460 verbose "check_effective_target_tls_runtime: returning $et_tls_runtime_saved" 2
464 return $et_tls_runtime_saved
467 # Return 1 if compilation with -fopenmp is error-free for trivial
470 proc check_effective_target_fopenmp {} {
471 return [check_no_compiler_messages fopenmp object {
476 # Return 1 if compilation with -freorder-blocks-and-partition is error-free
477 # for trivial code, 0 otherwise.
479 proc check_effective_target_freorder {} {
480 return [check_no_compiler_messages freorder object {
482 } "-freorder-blocks-and-partition"]
485 # Return 1 if -fpic and -fPIC are supported, as in no warnings or errors
486 # emitted, 0 otherwise. Whether a shared library can actually be built is
487 # out of scope for this test.
489 proc check_effective_target_fpic { } {
490 # Note that M68K has a multilib that supports -fpic but not
491 # -fPIC, so we need to check both. We test with a program that
492 # requires GOT references.
493 foreach arg {fpic fPIC} {
494 if [check_no_compiler_messages $arg object {
495 extern int foo (void); extern int bar;
496 int baz (void) { return foo () + bar; }
504 # Return true if the target supports -mpaired-single (as used on MIPS).
506 proc check_effective_target_mpaired_single { } {
507 return [check_no_compiler_messages mpaired_single object {
512 # Return true if iconv is supported on the target. In particular IBM1047.
514 proc check_iconv_available { test_what } {
522 verbose "check_iconv_available compiling testfile $src" 2
523 set f [open $src "w"]
524 # Compile a small test program.
525 puts $f "#include <iconv.h>\n"
526 puts $f "int main (void)\n {\n iconv_t cd; \n"
527 puts $f "cd = iconv_open (\"[lindex $test_what 1]\", \"UTF-8\");\n"
528 puts $f "if (cd == (iconv_t) -1)\n return 1;\n"
529 puts $f "return 0;\n}"
532 # If the tool configuration file has not set libiconv, try "-liconv"
533 if { ![info exists libiconv] } {
534 set libiconv "-liconv"
536 set lines [${tool}_target_compile $src $exe executable "libs=$libiconv" ]
539 if [string match "" $lines] then {
540 # No error messages, everything is OK.
542 set result [${tool}_load "./$exe" "" ""]
543 set status [lindex $result 0]
544 remote_file build delete $exe
546 verbose "check_iconv_available status is <$status>" 2
548 if { $status == "pass" } then {
556 # Return true if named sections are supported on this target.
558 proc check_named_sections_available { } {
559 return [check_no_compiler_messages named_sections assembly {
560 int __attribute__ ((section("whatever"))) foo;
564 # Return 1 if the target supports Fortran real kinds larger than real(8),
567 # When the target name changes, replace the cached result.
569 proc check_effective_target_fortran_large_real { } {
570 global et_fortran_large_real_saved
571 global et_fortran_large_real_target_name
574 if { ![info exists et_fortran_large_real_target_name] } {
575 set et_fortran_large_real_target_name ""
578 # If the target has changed since we set the cached value, clear it.
579 set current_target [current_target_name]
580 if { $current_target != $et_fortran_large_real_target_name } {
581 verbose "check_effective_target_fortran_large_real: `$et_fortran_large_real_target_name' `$current_target'" 2
582 set et_fortran_large_real_target_name $current_target
583 if [info exists et_fortran_large_real_saved] {
584 verbose "check_effective_target_fortran_large_real: removing cached result" 2
585 unset et_fortran_large_real_saved
589 if [info exists et_fortran_large_real_saved] {
590 verbose "check_effective_target_fortran_large_real returning saved $et_fortran_large_real_saved" 2
592 set et_fortran_large_real_saved 0
594 # Set up, compile, and execute a test program using large real
595 # kinds. Include the current process ID in the file names to
596 # prevent conflicts with invocations for multiple testsuites.
597 set src real[pid].f90
600 set f [open $src "w"]
601 puts $f "integer,parameter :: k = &"
602 puts $f " selected_real_kind (precision (0.0_8) + 1)"
603 puts $f "real(kind=k) :: x"
604 puts $f "x = cos (x);"
608 verbose "check_effective_target_fortran_large_real compiling testfile $src" 2
609 set lines [${tool}_target_compile $src $exe executable ""]
612 if [string match "" $lines] then {
613 # No error message, compilation succeeded.
614 set et_fortran_large_real_saved 1
618 return $et_fortran_large_real_saved
621 # Return 1 if the target supports Fortran integer kinds larger than
622 # integer(8), 0 otherwise.
624 # When the target name changes, replace the cached result.
626 proc check_effective_target_fortran_large_int { } {
627 global et_fortran_large_int_saved
628 global et_fortran_large_int_target_name
631 if { ![info exists et_fortran_large_int_target_name] } {
632 set et_fortran_large_int_target_name ""
635 # If the target has changed since we set the cached value, clear it.
636 set current_target [current_target_name]
637 if { $current_target != $et_fortran_large_int_target_name } {
638 verbose "check_effective_target_fortran_large_int: `$et_fortran_large_int_target_name' `$current_target'" 2
639 set et_fortran_large_int_target_name $current_target
640 if [info exists et_fortran_large_int_saved] {
641 verbose "check_effective_target_fortran_large_int: removing cached result" 2
642 unset et_fortran_large_int_saved
646 if [info exists et_fortran_large_int_saved] {
647 verbose "check_effective_target_fortran_large_int returning saved $et_fortran_large_int_saved" 2
649 set et_fortran_large_int_saved 0
651 # Set up, compile, and execute a test program using large integer
652 # kinds. Include the current process ID in the file names to
653 # prevent conflicts with invocations for multiple testsuites.
657 set f [open $src "w"]
658 puts $f "integer,parameter :: k = &"
659 puts $f " selected_int_kind (range (0_8) + 1)"
660 puts $f "integer(kind=k) :: i"
664 verbose "check_effective_target_fortran_large_int compiling testfile $src" 2
665 set lines [${tool}_target_compile $src $exe executable ""]
668 if [string match "" $lines] then {
669 # No error message, compilation succeeded.
670 set et_fortran_large_int_saved 1
674 return $et_fortran_large_int_saved
677 # Return 1 if we can statically link libgfortran, 0 otherwise.
679 # When the target name changes, replace the cached result.
681 proc check_effective_target_static_libgfortran { } {
682 global et_static_libgfortran
683 global et_static_libgfortran_target_name
686 if { ![info exists et_static_libgfortran_target_name] } {
687 set et_static_libgfortran_target_name ""
690 # If the target has changed since we set the cached value, clear it.
691 set current_target [current_target_name]
692 if { $current_target != $et_static_libgfortran_target_name } {
693 verbose "check_effective_target_static_libgfortran: `$et_static_libgfortran_target_name' `$current_target'" 2
694 set et_static_libgfortran_target_name $current_target
695 if [info exists et_static_libgfortran_saved] {
696 verbose "check_effective_target_static_libgfortran: removing cached result" 2
697 unset et_static_libgfortran_saved
701 if [info exists et_static_libgfortran_saved] {
702 verbose "check_effective_target_static_libgfortran returning saved $et_static_libgfortran_saved" 2
704 set et_static_libgfortran_saved 0
706 # Set up, compile, and execute a test program using static linking.
707 # Include the current process ID in the file names to prevent
708 # conflicts with invocations for multiple testsuites.
709 set opts "additional_flags=-static"
710 set src static[pid].f
711 set exe static[pid].x
713 set f [open $src "w"]
714 puts $f " print *, 'test'"
718 verbose "check_effective_target_static_libgfortran compiling testfile $src" 2
719 set lines [${tool}_target_compile $src $exe executable "$opts"]
722 if [string match "" $lines] then {
723 # No error message, compilation succeeded.
724 set et_static_libgfortran_saved 1
728 return $et_static_libgfortran_saved
731 # Return 1 if the target supports executing AltiVec instructions, 0
732 # otherwise. Cache the result.
734 proc check_vmx_hw_available { } {
735 global vmx_hw_available_saved
738 if [info exists vmx_hw_available_saved] {
739 verbose "check_hw_available returning saved $vmx_hw_available_saved" 2
741 set vmx_hw_available_saved 0
743 # Some simulators are known to not support VMX instructions.
744 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
745 verbose "check_hw_available returning 0" 2
746 return $vmx_hw_available_saved
749 # Set up, compile, and execute a test program containing VMX
750 # instructions. Include the current process ID in the file
751 # names to prevent conflicts with invocations for multiple
756 set f [open $src "w"]
757 puts $f "int main() {"
758 puts $f "#ifdef __MACH__"
759 puts $f " asm volatile (\"vor v0,v0,v0\");"
761 puts $f " asm volatile (\"vor 0,0,0\");"
763 puts $f " return 0; }"
766 # Most targets don't require special flags for this test case, but
768 if [istarget *-*-darwin*] {
769 set opts "additional_flags=-maltivec"
774 verbose "check_vmx_hw_available compiling testfile $src" 2
775 set lines [${tool}_target_compile $src $exe executable "$opts"]
778 if [string match "" $lines] then {
779 # No error message, compilation succeeded.
780 set result [${tool}_load "./$exe" "" ""]
781 set status [lindex $result 0]
782 remote_file build delete $exe
783 verbose "check_vmx_hw_available testfile status is <$status>" 2
785 if { $status == "pass" } then {
786 set vmx_hw_available_saved 1
789 verbose "check_vmx_hw_availalble testfile compilation failed" 2
793 return $vmx_hw_available_saved
796 # GCC 3.4.0 for powerpc64-*-linux* included an ABI fix for passing
797 # complex float arguments. This affects gfortran tests that call cabsf
798 # in libm built by an earlier compiler. Return 1 if libm uses the same
799 # argument passing as the compiler under test, 0 otherwise.
801 # When the target name changes, replace the cached result.
803 proc check_effective_target_broken_cplxf_arg { } {
804 global et_broken_cplxf_arg_saved
805 global et_broken_cplxf_arg_target_name
808 # Skip the work for targets known not to be affected.
809 if { ![istarget powerpc64-*-linux*] } {
811 } elseif { [is-effective-target ilp32] } {
815 if { ![info exists et_broken_cplxf_arg_target_name] } {
816 set et_broken_cplxf_arg_target_name ""
819 # If the target has changed since we set the cached value, clear it.
820 set current_target [current_target_name]
821 if { $current_target != $et_broken_cplxf_arg_target_name } {
822 verbose "check_effective_target_broken_cplxf_arg: `$et_broken_cplxf_arg_target_name'" 2
823 set et_broken_cplxf_arg_target_name $current_target
824 if [info exists et_broken_cplxf_arg_saved] {
825 verbose "check_effective_target_broken_cplxf_arg: removing cached result" 2
826 unset et_broken_cplxf_arg_saved
830 if [info exists et_broken_cplxf_arg_saved] {
831 verbose "check_effective_target_broken_cplxf_arg: using cached result" 2
833 set et_broken_cplxf_arg_saved 0
834 # This is only known to affect one target.
835 if { ![istarget powerpc64-*-linux*] || ![is-effective-target lp64] } {
836 set et_broken_cplxf_arg_saved 0
837 verbose "check_effective_target_broken_cplxf_arg: caching 0" 2
838 return $et_broken_cplxf_arg_saved
841 # Set up, compile, and execute a C test program that calls cabsf.
845 set f [open $src "w"]
846 puts $f "#include <complex.h>"
847 puts $f "extern void abort (void);"
848 puts $f "float fabsf (float);"
849 puts $f "float cabsf (_Complex float);"
850 puts $f "int main ()"
852 puts $f " _Complex float cf;"
854 puts $f " cf = 3 + 4.0fi;"
855 puts $f " f = cabsf (cf);"
856 puts $f " if (fabsf (f - 5.0) > 0.0001) abort ();"
861 set lines [${tool}_target_compile $src $exe executable "-lm"]
864 if [string match "" $lines] {
865 # No error message, compilation succeeded.
866 set result [${tool}_load "./$exe" "" ""]
867 set status [lindex $result 0]
868 remote_file build delete $exe
870 verbose "check_effective_target_broken_cplxf_arg: status is <$status>" 2
872 if { $status != "pass" } {
873 set et_broken_cplxf_arg_saved 1
876 verbose "check_effective_target_broken_cplxf_arg: compilation failed" 2
879 return $et_broken_cplxf_arg_saved
882 proc check_alpha_max_hw_available { } {
883 global alpha_max_hw_available_saved
886 if [info exists alpha_max_hw_available_saved] {
887 verbose "check_alpha_max_hw_available returning saved $alpha_max_hw_available_saved" 2
889 set alpha_max_hw_available_saved 0
891 # Set up, compile, and execute a test program probing bit 8 of the
892 # architecture mask, which indicates presence of MAX instructions.
896 set f [open $src "w"]
897 puts $f "int main() { return __builtin_alpha_amask(1<<8) != 0; }"
900 verbose "check_alpha_max_hw_available compiling testfile $src" 2
901 set lines [${tool}_target_compile $src $exe executable ""]
904 if [string match "" $lines] then {
905 # No error message, compilation succeeded.
906 set result [${tool}_load "./$exe" "" ""]
907 set status [lindex $result 0]
908 remote_file build delete $exe
909 verbose "check_alpha_max_hw_available testfile status is <$status>" 2
911 if { $status == "pass" } then {
912 set alpha_max_hw_available_saved 1
915 verbose "check_alpha_max_hw_availalble testfile compilation failed" 2
919 return $alpha_max_hw_available_saved
922 # Returns true iff the FUNCTION is available on the target system.
923 # (This is essentially a Tcl implementation of Autoconf's
926 proc check_function_available { function } {
927 set var "${function}_available_saved"
931 if {![info exists $var]} {
934 # Check to make sure.
935 set src "function[pid].c"
936 set exe "function[pid].exe"
938 set f [open $src "w"]
939 puts $f "int main () { $function (); }"
942 set lines [${tool}_target_compile $src $exe executable ""]
946 if {![string match "" $lines]} then {
948 verbose -log "$function is not available"
950 verbose -log "$function is available"
957 # Returns true iff "fork" is available on the target system.
959 proc check_fork_available {} {
960 return [check_function_available "fork"]
963 # Returns true iff "mkfifo" is available on the target system.
965 proc check_mkfifo_available {} {
966 if {[istarget *-*-cygwin*]} {
967 # Cygwin has mkfifo, but support is incomplete.
971 return [check_function_available "mkfifo"]
974 # Returns true iff "__cxa_atexit" is used on the target system.
976 proc check_cxa_atexit_available { } {
978 global et_cxa_atexit_target_name
981 if { ![info exists et_cxa_atexit_target_name] } {
982 set et_cxa_atexit_target_name ""
985 # If the target has changed since we set the cached value, clear it.
986 set current_target [current_target_name]
987 if { $current_target != $et_cxa_atexit_target_name } {
988 verbose "check_cxa_atexit_available: `$et_cxa_atexit_target_name'" 2
989 set et_cxa_atexit_target_name $current_target
990 if [info exists et_cxa_atexit] {
991 verbose "check_cxa_atexit_available: removing cached result" 2
996 if [info exists et_cxa_atexit] {
997 verbose "check_cxa_atexit_available: using cached result" 2
1001 # Set up, compile, and execute a C++ test program that depends
1002 # on correct ordering of static object destructors. This is
1003 # indicative of the presence and use of __cxa_atexit.
1004 set src cxaatexit[pid].cc
1005 set exe cxaatexit[pid].x
1007 set f [open $src "w"]
1008 puts $f "#include <stdlib.h>"
1009 puts $f "static unsigned int count;"
1012 puts $f " X() { count = 1; }"
1015 puts $f " if (count != 3)"
1017 puts $f " count = 4;"
1022 puts $f " static X x;"
1026 puts $f " Y() { f(); count = 2; }"
1029 puts $f " if (count != 2)"
1031 puts $f " count = 3;"
1035 puts $f "int main()"
1036 puts $f "{ return 0; }"
1039 set lines [${tool}_target_compile $src $exe executable ""]
1042 if [string match "" $lines] {
1043 # No error message, compilation succeeded.
1044 set result [${tool}_load "./$exe" "" ""]
1045 set status [lindex $result 0]
1046 remote_file build delete $exe
1048 verbose "check_cxa_atexit_available: status is <$status>" 2
1050 if { $status == "pass" } {
1054 verbose "check_cxa_atexit_available: compilation failed" 2
1057 return $et_cxa_atexit
1061 # Return 1 if we're generating 32-bit code using default options, 0
1064 proc check_effective_target_ilp32 { } {
1065 return [check_no_compiler_messages ilp32 object {
1066 int dummy[sizeof (int) == 4
1067 && sizeof (void *) == 4
1068 && sizeof (long) == 4 ? 1 : -1];
1072 # Return 1 if we're generating 32-bit or larger integers using default
1073 # options, 0 otherwise.
1075 proc check_effective_target_int32plus { } {
1076 return [check_no_compiler_messages int32plus object {
1077 int dummy[sizeof (int) >= 4 ? 1 : -1];
1081 # Return 1 if we're generating 32-bit or larger pointers using default
1082 # options, 0 otherwise.
1084 proc check_effective_target_ptr32plus { } {
1085 return [check_no_compiler_messages ptr32plus object {
1086 int dummy[sizeof (void *) >= 4 ? 1 : -1];
1090 # Return 1 if we support 32-bit or larger array and structure sizes
1091 # using default options, 0 otherwise.
1093 proc check_effective_target_size32plus { } {
1094 return [check_no_compiler_messages size32plus object {
1099 # Returns 1 if we're generating 16-bit or smaller integers with the
1100 # default options, 0 otherwise.
1102 proc check_effective_target_int16 { } {
1103 return [check_no_compiler_messages int16 object {
1104 int dummy[sizeof (int) < 4 ? 1 : -1];
1108 # Return 1 if we're generating 64-bit code using default options, 0
1111 proc check_effective_target_lp64 { } {
1112 return [check_no_compiler_messages lp64 object {
1113 int dummy[sizeof (int) == 4
1114 && sizeof (void *) == 8
1115 && sizeof (long) == 8 ? 1 : -1];
1119 # Return 1 if the target supports compiling decimal floating point,
1122 proc check_effective_target_dfp_nocache { } {
1123 verbose "check_effective_target_dfp_nocache: compiling source" 2
1124 set ret [string match "" [get_compiler_messages dfp 0 object {
1125 _Decimal32 x; _Decimal64 y; _Decimal128 z;
1127 verbose "check_effective_target_dfp_nocache: returning $ret" 2
1131 proc check_effective_target_dfprt_nocache { } {
1136 verbose "check_effective_target_dfprt_nocache: compiling source" 2
1137 # Set up, compile, and execute a test program containing decimal
1139 set src dfprt[pid].c
1140 set exe dfprt[pid].x
1142 set f [open $src "w"]
1143 puts $f "_Decimal32 x = 1.2df; _Decimal64 y = 2.3dd; _Decimal128 z;"
1144 puts $f "int main () { z = x + y; return 0; }"
1147 verbose "check_effective_target_dfprt_nocache: compiling testfile $src" 2
1148 set lines [${tool}_target_compile $src $exe executable ""]
1151 if [string match "" $lines] then {
1152 # No error message, compilation succeeded.
1153 set result [${tool}_load "./$exe" "" ""]
1154 set status [lindex $result 0]
1155 remote_file build delete $exe
1156 verbose "check_effective_target_dfprt_nocache: testfile status is <$status>" 2
1157 if { $status == "pass" } then {
1162 verbose "check_effective_target_dfprt_nocache: returning $ret" 2
1165 # Return 1 if the target supports compiling Decimal Floating Point,
1168 # This won't change for different subtargets so cache the result.
1170 proc check_effective_target_dfp { } {
1173 if [info exists et_dfp_saved] {
1174 verbose "check_effective_target_dfp: using cached result" 2
1176 set et_dfp_saved [check_effective_target_dfp_nocache]
1178 verbose "check_effective_target_dfp: returning $et_dfp_saved" 2
1179 return $et_dfp_saved
1182 # Return 1 if the target supports linking and executing Decimal Floating
1183 # Point, # 0 otherwise.
1185 # This won't change for different subtargets so cache the result.
1187 proc check_effective_target_dfprt { } {
1188 global et_dfprt_saved
1191 if [info exists et_dfprt_saved] {
1192 verbose "check_effective_target_dfprt: using cached result" 2
1194 set et_dfprt_saved [check_effective_target_dfprt_nocache]
1196 verbose "check_effective_target_dfprt: returning $et_dfprt_saved" 2
1197 return $et_dfprt_saved
1200 # Return 1 if the target needs a command line argument to enable a SIMD
1203 proc check_effective_target_vect_cmdline_needed { } {
1204 global et_vect_cmdline_needed_saved
1205 global et_vect_cmdline_needed_target_name
1207 if { ![info exists et_vect_cmdline_needed_target_name] } {
1208 set et_vect_cmdline_needed_target_name ""
1211 # If the target has changed since we set the cached value, clear it.
1212 set current_target [current_target_name]
1213 if { $current_target != $et_vect_cmdline_needed_target_name } {
1214 verbose "check_effective_target_vect_cmdline_needed: `$et_vect_cmdline_needed_target_name' `$current_target'" 2
1215 set et_vect_cmdline_needed_target_name $current_target
1216 if { [info exists et_vect_cmdline_needed_saved] } {
1217 verbose "check_effective_target_vect_cmdline_needed: removing cached result" 2
1218 unset et_vect_cmdline_needed_saved
1222 if [info exists et_vect_cmdline_needed_saved] {
1223 verbose "check_effective_target_vect_cmdline_needed: using cached result" 2
1225 set et_vect_cmdline_needed_saved 1
1226 if { [istarget ia64-*-*]
1227 || (([istarget x86_64-*-*] || [istarget i?86-*-*])
1228 && [check_effective_target_lp64])} {
1229 set et_vect_cmdline_needed_saved 0
1233 verbose "check_effective_target_vect_cmdline_needed: returning $et_vect_cmdline_needed_saved" 2
1234 return $et_vect_cmdline_needed_saved
1237 # Return 1 if the target supports hardware vectors of int, 0 otherwise.
1239 # This won't change for different subtargets so cache the result.
1241 proc check_effective_target_vect_int { } {
1242 global et_vect_int_saved
1244 if [info exists et_vect_int_saved] {
1245 verbose "check_effective_target_vect_int: using cached result" 2
1247 set et_vect_int_saved 0
1248 if { [istarget i?86-*-*]
1249 || [istarget powerpc*-*-*]
1250 || [istarget x86_64-*-*]
1251 || [istarget sparc*-*-*]
1252 || [istarget alpha*-*-*]
1253 || [istarget ia64-*-*] } {
1254 set et_vect_int_saved 1
1258 verbose "check_effective_target_vect_int: returning $et_vect_int_saved" 2
1259 return $et_vect_int_saved
1262 # Return 1 is this is an arm target using 32-bit instructions
1263 proc check_effective_target_arm32 { } {
1264 global et_arm32_saved
1265 global et_arm32_target_name
1266 global compiler_flags
1268 if { ![info exists et_arm32_target_name] } {
1269 set et_arm32_target_name ""
1272 # If the target has changed since we set the cached value, clear it.
1273 set current_target [current_target_name]
1274 if { $current_target != $et_arm32_target_name } {
1275 verbose "check_effective_target_arm32: `$et_arm32_target_name' `$current_target'" 2
1276 set et_arm32_target_name $current_target
1277 if { [info exists et_arm32_saved] } {
1278 verbose "check_effective_target_arm32: removing cached result" 2
1279 unset et_arm32_saved
1283 if [info exists et_arm32_saved] {
1284 verbose "check-effective_target_arm32: using cached result" 2
1286 set et_arm32_saved 0
1287 if { [istarget arm-*-*]
1288 || [istarget strongarm*-*-*]
1289 || [istarget xscale-*-*] } {
1290 if ![string match "*-mthumb *" $compiler_flags] {
1291 set et_arm32_saved 1
1295 verbose "check_effective_target_arm32: returning $et_arm32_saved" 2
1296 return $et_arm32_saved
1299 # Return 1 if this is a PowerPC target with floating-point registers.
1301 proc check_effective_target_powerpc_fprs { } {
1302 if { [istarget powerpc*-*-*]
1303 || [istarget rs6000-*-*] } {
1304 return [check_no_compiler_messages powerpc_fprs object {
1316 # Return 1 if this is a PowerPC target supporting -maltivec.
1318 proc check_effective_target_powerpc_altivec_ok { } {
1319 if { [istarget powerpc*-*-*]
1320 || [istarget rs6000-*-*] } {
1321 # AltiVec is not supported on Aix.
1322 if { [istarget powerpc*-*-aix*] } {
1325 return [check_no_compiler_messages powerpc_altivec_ok object {
1333 # Return 1 if the target supports hardware vector shift operation.
1335 proc check_effective_target_vect_shift { } {
1336 global et_vect_shift_saved
1338 if [info exists et_vect_shift_saved] {
1339 verbose "check_effective_target_vect_shift: using cached result" 2
1341 set et_vect_shift_saved 0
1342 if { [istarget powerpc*-*-*]
1343 || [istarget ia64-*-*]
1344 || [istarget i?86-*-*]
1345 || [istarget x86_64-*-*] } {
1346 set et_vect_shift_saved 1
1350 verbose "check_effective_target_vect_shift: returning $et_vect_shift_saved" 2
1351 return $et_vect_shift_saved
1354 # Return 1 if the target supports hardware vectors of long, 0 otherwise.
1356 # This can change for different subtargets so do not cache the result.
1358 proc check_effective_target_vect_long { } {
1359 if { [istarget i?86-*-*]
1360 || ([istarget powerpc*-*-*] && [check_effective_target_ilp32])
1361 || [istarget x86_64-*-*]
1362 || ([istarget sparc*-*-*] && [check_effective_target_ilp32]) } {
1368 verbose "check_effective_target_vect_long: returning $answer" 2
1372 # Return 1 if the target supports hardware vectors of float, 0 otherwise.
1374 # This won't change for different subtargets so cache the result.
1376 proc check_effective_target_vect_float { } {
1377 global et_vect_float_saved
1379 if [info exists et_vect_float_saved] {
1380 verbose "check_effective_target_vect_float: using cached result" 2
1382 set et_vect_float_saved 0
1383 if { [istarget i?86-*-*]
1384 || [istarget powerpc*-*-*]
1385 || [istarget mipsisa64*-*-*]
1386 || [istarget x86_64-*-*]
1387 || [istarget ia64-*-*] } {
1388 set et_vect_float_saved 1
1392 verbose "check_effective_target_vect_float: returning $et_vect_float_saved" 2
1393 return $et_vect_float_saved
1396 # Return 1 if the target supports hardware vectors of double, 0 otherwise.
1398 # This won't change for different subtargets so cache the result.
1400 proc check_effective_target_vect_double { } {
1401 global et_vect_double_saved
1403 if [info exists et_vect_double_saved] {
1404 verbose "check_effective_target_vect_double: using cached result" 2
1406 set et_vect_double_saved 0
1407 if { [istarget i?86-*-*]
1408 || [istarget x86_64-*-*] } {
1409 set et_vect_double_saved 1
1413 verbose "check_effective_target_vect_double: returning $et_vect_double_saved" 2
1414 return $et_vect_double_saved
1417 # Return 1 if the target plus current options does not support a vector
1418 # max instruction on "int", 0 otherwise.
1420 # This won't change for different subtargets so cache the result.
1422 proc check_effective_target_vect_no_int_max { } {
1423 global et_vect_no_int_max_saved
1425 if [info exists et_vect_no_int_max_saved] {
1426 verbose "check_effective_target_vect_no_int_max: using cached result" 2
1428 set et_vect_no_int_max_saved 0
1429 if { [istarget sparc*-*-*]
1430 || [istarget alpha*-*-*] } {
1431 set et_vect_no_int_max_saved 1
1434 verbose "check_effective_target_vect_no_int_max: returning $et_vect_no_int_max_saved" 2
1435 return $et_vect_no_int_max_saved
1438 # Return 1 if the target plus current options does not support a vector
1439 # add instruction on "int", 0 otherwise.
1441 # This won't change for different subtargets so cache the result.
1443 proc check_effective_target_vect_no_int_add { } {
1444 global et_vect_no_int_add_saved
1446 if [info exists et_vect_no_int_add_saved] {
1447 verbose "check_effective_target_vect_no_int_add: using cached result" 2
1449 set et_vect_no_int_add_saved 0
1450 # Alpha only supports vector add on V8QI and V4HI.
1451 if { [istarget alpha*-*-*] } {
1452 set et_vect_no_int_add_saved 1
1455 verbose "check_effective_target_vect_no_int_add: returning $et_vect_no_int_add_saved" 2
1456 return $et_vect_no_int_add_saved
1459 # Return 1 if the target plus current options does not support vector
1460 # bitwise instructions, 0 otherwise.
1462 # This won't change for different subtargets so cache the result.
1464 proc check_effective_target_vect_no_bitwise { } {
1465 global et_vect_no_bitwise_saved
1467 if [info exists et_vect_no_bitwise_saved] {
1468 verbose "check_effective_target_vect_no_bitwise: using cached result" 2
1470 set et_vect_no_bitwise_saved 0
1472 verbose "check_effective_target_vect_no_bitwise: returning $et_vect_no_bitwise_saved" 2
1473 return $et_vect_no_bitwise_saved
1476 # Return 1 if the target plus current options supports a vector
1477 # widening summation of *short* args into *int* result, 0 otherwise.
1479 # This won't change for different subtargets so cache the result.
1481 proc check_effective_target_vect_widen_sum_hi_to_si { } {
1482 global et_vect_widen_sum_hi_to_si
1484 if [info exists et_vect_widen_sum_hi_to_si_saved] {
1485 verbose "check_effective_target_vect_widen_sum_hi_to_si: using cached result" 2
1487 set et_vect_widen_sum_hi_to_si_saved 0
1488 if { [istarget powerpc*-*-*]
1489 || [istarget ia64-*-*] } {
1490 set et_vect_widen_sum_hi_to_si_saved 1
1493 verbose "check_effective_target_vect_widen_sum_hi_to_si: returning $et_vect_widen_sum_hi_to_si_saved" 2
1494 return $et_vect_widen_sum_hi_to_si_saved
1497 # Return 1 if the target plus current options supports a vector
1498 # widening summation of *char* args into *short* result, 0 otherwise.
1500 # This won't change for different subtargets so cache the result.
1502 proc check_effective_target_vect_widen_sum_qi_to_hi { } {
1503 global et_vect_widen_sum_qi_to_hi
1505 if [info exists et_vect_widen_sum_qi_to_hi_saved] {
1506 verbose "check_effective_target_vect_widen_sum_qi_to_hi: using cached result" 2
1508 set et_vect_widen_sum_qi_to_hi_saved 0
1509 if { [istarget ia64-*-*] } {
1510 set et_vect_widen_sum_qi_to_hi_saved 1
1513 verbose "check_effective_target_vect_widen_sum_qi_to_hi: returning $et_vect_widen_sum_qi_to_hi_saved" 2
1514 return $et_vect_widen_sum_qi_to_hi_saved
1517 # Return 1 if the target plus current options supports a vector
1518 # widening summation of *char* args into *int* result, 0 otherwise.
1520 # This won't change for different subtargets so cache the result.
1522 proc check_effective_target_vect_widen_sum_qi_to_si { } {
1523 global et_vect_widen_sum_qi_to_si
1525 if [info exists et_vect_widen_sum_qi_to_si_saved] {
1526 verbose "check_effective_target_vect_widen_sum_qi_to_si: using cached result" 2
1528 set et_vect_widen_sum_qi_to_si_saved 0
1529 if { [istarget powerpc*-*-*] } {
1530 set et_vect_widen_sum_qi_to_si_saved 1
1533 verbose "check_effective_target_vect_widen_sum_qi_to_si: returning $et_vect_widen_sum_qi_to_si_saved" 2
1534 return $et_vect_widen_sum_qi_to_si_saved
1537 # Return 1 if the target plus current options supports a vector
1538 # widening summation, 0 otherwise.
1540 # This won't change for different subtargets so cache the result.
1542 proc check_effective_target_vect_widen_sum { } {
1543 global et_vect_widen_sum
1545 if [info exists et_vect_widen_sum_saved] {
1546 verbose "check_effective_target_vect_widen_sum: using cached result" 2
1548 set et_vect_widen_sum_saved 0
1549 if { [istarget powerpc*-*-*]
1550 || [istarget ia64-*-*] } {
1551 set et_vect_widen_sum_saved 1
1554 verbose "check_effective_target_vect_widen_sum: returning $et_vect_widen_sum_saved" 2
1555 return $et_vect_widen_sum_saved
1558 # Return 1 if the target plus current options supports a vector
1559 # dot-product of signed chars, 0 otherwise.
1561 # This won't change for different subtargets so cache the result.
1563 proc check_effective_target_vect_sdot_qi { } {
1564 global et_vect_sdot_qi
1566 if [info exists et_vect_sdot_qi_saved] {
1567 verbose "check_effective_target_vect_sdot_qi: using cached result" 2
1569 set et_vect_sdot_qi_saved 0
1570 if { [istarget ia64-*-*] } {
1571 set et_vect_sdot_qi_saved 1
1574 verbose "check_effective_target_vect_sdot_qi: returning $et_vect_sdot_qi_saved" 2
1575 return $et_vect_sdot_qi_saved
1578 # Return 1 if the target plus current options supports a vector
1579 # dot-product of unsigned chars, 0 otherwise.
1581 # This won't change for different subtargets so cache the result.
1583 proc check_effective_target_vect_udot_qi { } {
1584 global et_vect_udot_qi
1586 if [info exists et_vect_udot_qi_saved] {
1587 verbose "check_effective_target_vect_udot_qi: using cached result" 2
1589 set et_vect_udot_qi_saved 0
1590 if { [istarget powerpc*-*-*]
1591 || [istarget ia64-*-*] } {
1592 set et_vect_udot_qi_saved 1
1595 verbose "check_effective_target_vect_udot_qi: returning $et_vect_udot_qi_saved" 2
1596 return $et_vect_udot_qi_saved
1599 # Return 1 if the target plus current options supports a vector
1600 # dot-product of signed shorts, 0 otherwise.
1602 # This won't change for different subtargets so cache the result.
1604 proc check_effective_target_vect_sdot_hi { } {
1605 global et_vect_sdot_hi
1607 if [info exists et_vect_sdot_hi_saved] {
1608 verbose "check_effective_target_vect_sdot_hi: using cached result" 2
1610 set et_vect_sdot_hi_saved 0
1611 if { [istarget powerpc*-*-*]
1612 || [istarget i?86-*-*]
1613 || [istarget x86_64-*-*]
1614 || [istarget ia64-*-*] } {
1615 set et_vect_sdot_hi_saved 1
1618 verbose "check_effective_target_vect_sdot_hi: returning $et_vect_sdot_hi_saved" 2
1619 return $et_vect_sdot_hi_saved
1622 # Return 1 if the target plus current options supports a vector
1623 # dot-product of unsigned shorts, 0 otherwise.
1625 # This won't change for different subtargets so cache the result.
1627 proc check_effective_target_vect_udot_hi { } {
1628 global et_vect_udot_hi
1630 if [info exists et_vect_udot_hi_saved] {
1631 verbose "check_effective_target_vect_udot_hi: using cached result" 2
1633 set et_vect_udot_hi_saved 0
1634 if { [istarget powerpc*-*-*] } {
1635 set et_vect_udot_hi_saved 1
1638 verbose "check_effective_target_vect_udot_hi: returning $et_vect_udot_hi_saved" 2
1639 return $et_vect_udot_hi_saved
1643 # Return 1 if the target plus current options does not support a vector
1644 # alignment mechanism, 0 otherwise.
1646 # This won't change for different subtargets so cache the result.
1648 proc check_effective_target_vect_no_align { } {
1649 global et_vect_no_align_saved
1651 if [info exists et_vect_no_align_saved] {
1652 verbose "check_effective_target_vect_no_align: using cached result" 2
1654 set et_vect_no_align_saved 0
1655 if { [istarget mipsisa64*-*-*]
1656 || [istarget sparc*-*-*]
1657 || [istarget ia64-*-*] } {
1658 set et_vect_no_align_saved 1
1661 verbose "check_effective_target_vect_no_align: returning $et_vect_no_align_saved" 2
1662 return $et_vect_no_align_saved
1665 # Return 1 if the target supports vector conditional operations, 0 otherwise.
1667 proc check_effective_target_vect_condition { } {
1668 global et_vect_cond_saved
1670 if [info exists et_vect_cond_saved] {
1671 verbose "check_effective_target_vect_cond: using cached result" 2
1673 set et_vect_cond_saved 0
1674 if { [istarget powerpc*-*-*]
1675 || [istarget ia64-*-*]
1676 || [istarget i?86-*-*]
1677 || [istarget x86_64-*-*] } {
1678 set et_vect_cond_saved 1
1682 verbose "check_effective_target_vect_cond: returning $et_vect_cond_saved" 2
1683 return $et_vect_cond_saved
1686 # Return 1 if the target supports vector char multiplication, 0 otherwise.
1688 proc check_effective_target_vect_char_mult { } {
1689 global et_vect_char_mult_saved
1691 if [info exists et_vect_char_mult_saved] {
1692 verbose "check_effective_target_vect_char_mult: using cached result" 2
1694 set et_vect_char_mult_saved 0
1695 if { [istarget ia64-*-*]
1696 || [istarget i?86-*-*]
1697 || [istarget x86_64-*-*] } {
1698 set et_vect_char_mult_saved 1
1702 verbose "check_effective_target_vect_char_mult: returning $et_vect_char_mult_saved" 2
1703 return $et_vect_char_mult_saved
1706 # Return 1 if the target supports vector short multiplication, 0 otherwise.
1708 proc check_effective_target_vect_short_mult { } {
1709 global et_vect_short_mult_saved
1711 if [info exists et_vect_short_mult_saved] {
1712 verbose "check_effective_target_vect_short_mult: using cached result" 2
1714 set et_vect_short_mult_saved 0
1715 if { [istarget ia64-*-*]
1716 || [istarget i?86-*-*]
1717 || [istarget x86_64-*-*] } {
1718 set et_vect_short_mult_saved 1
1722 verbose "check_effective_target_vect_short_mult: returning $et_vect_short_mult_saved" 2
1723 return $et_vect_short_mult_saved
1726 # Return 1 if the target supports vector int multiplication, 0 otherwise.
1728 proc check_effective_target_vect_int_mult { } {
1729 global et_vect_int_mult_saved
1731 if [info exists et_vect_int_mult_saved] {
1732 verbose "check_effective_target_vect_int_mult: using cached result" 2
1734 set et_vect_int_mult_saved 0
1735 if { [istarget powerpc*-*-*]
1736 || [istarget i?86-*-*]
1737 || [istarget x86_64-*-*] } {
1738 set et_vect_int_mult_saved 1
1742 verbose "check_effective_target_vect_int_mult: returning $et_vect_int_mult_saved" 2
1743 return $et_vect_int_mult_saved
1746 # Return 1 if the target supports section-anchors
1748 proc check_effective_target_section_anchors { } {
1749 global et_section_anchors_saved
1751 if [info exists et_section_anchors_saved] {
1752 verbose "check_effective_target_section_anchors: using cached result" 2
1754 set et_section_anchors_saved 0
1755 if { [istarget powerpc*-*-*] } {
1756 set et_section_anchors_saved 1
1760 verbose "check_effective_target_section_anchors: returning $et_section_anchors_saved" 2
1761 return $et_section_anchors_saved
1764 # Return 1 if the target supports atomic operations on "int" and "long".
1766 proc check_effective_target_sync_int_long { } {
1767 global et_sync_int_long_saved
1769 if [info exists et_sync_int_long_saved] {
1770 verbose "check_effective_target_sync_int_long: using cached result" 2
1772 set et_sync_int_long_saved 0
1773 # This is intentionally powerpc but not rs6000, rs6000 doesn't have the
1774 # load-reserved/store-conditional instructions.
1775 if { [istarget ia64-*-*]
1776 || [istarget i?86-*-*]
1777 || [istarget x86_64-*-*]
1778 || [istarget alpha*-*-*]
1779 || [istarget s390*-*-*]
1780 || [istarget powerpc*-*-*]
1781 || [istarget sparc64-*-*]
1782 || [istarget sparcv9-*-*] } {
1783 set et_sync_int_long_saved 1
1787 verbose "check_effective_target_sync_int_long: returning $et_sync_int_long_saved" 2
1788 return $et_sync_int_long_saved
1791 # Return 1 if the target supports atomic operations on "char" and "short".
1793 proc check_effective_target_sync_char_short { } {
1794 global et_sync_char_short_saved
1796 if [info exists et_sync_char_short_saved] {
1797 verbose "check_effective_target_sync_char_short: using cached result" 2
1799 set et_sync_char_short_saved 0
1800 # This is intentionally powerpc but not rs6000, rs6000 doesn't have the
1801 # load-reserved/store-conditional instructions.
1802 if { [istarget ia64-*-*]
1803 || [istarget i?86-*-*]
1804 || [istarget x86_64-*-*]
1805 || [istarget alpha*-*-*]
1806 || [istarget s390*-*-*]
1807 || [istarget powerpc*-*-*]
1808 || [istarget sparc64-*-*]
1809 || [istarget sparcv9-*-*] } {
1810 set et_sync_char_short_saved 1
1814 verbose "check_effective_target_sync_char_short: returning $et_sync_char_short_saved" 2
1815 return $et_sync_char_short_saved
1818 # Return 1 if the target matches the effective target 'arg', 0 otherwise.
1819 # This can be used with any check_* proc that takes no argument and
1820 # returns only 1 or 0. It could be used with check_* procs that take
1821 # arguments with keywords that pass particular arguments.
1823 proc is-effective-target { arg } {
1825 if { [info procs check_effective_target_${arg}] != [list] } {
1826 set selected [check_effective_target_${arg}]
1829 "vmx_hw" { set selected [check_vmx_hw_available] }
1830 "named_sections" { set selected [check_named_sections_available] }
1831 "gc_sections" { set selected [check_gc_sections_available] }
1832 "cxa_atexit" { set selected [check_cxa_atexit_available] }
1833 default { error "unknown effective target keyword `$arg'" }
1836 verbose "is-effective-target: $arg $selected" 2
1840 # Return 1 if the argument is an effective-target keyword, 0 otherwise.
1842 proc is-effective-target-keyword { arg } {
1843 if { [info procs check_effective_target_${arg}] != [list] } {
1846 # These have different names for their check_* procs.
1848 "vmx_hw" { return 1 }
1849 "named_sections" { return 1 }
1850 "gc_sections" { return 1 }
1851 "cxa_atexit" { return 1 }
1852 default { return 0 }
1857 # Return 1 if target default to short enums
1859 proc check_effective_target_short_enums { } {
1860 return [check_no_compiler_messages short_enums assembly {
1862 int s[sizeof (enum foo) == 1 ? 1 : -1];
1866 # Return 1 if target supports merging string constants at link time.
1868 proc check_effective_target_string_merging { } {
1869 return [check_no_messages_and_pattern string_merging \
1870 "rodata\\.str" assembly {
1871 const char *var = "String";