1 # Copyright (C) 1999, 2001, 2003, 2004, 2005, 2006, 2007
2 # Free Software Foundation, Inc.
4 # This program is free software; you can redistribute it and/or modify
5 # it under the terms of the GNU General Public License as published by
6 # the Free Software Foundation; either version 3 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 GCC; see the file COPYING3. If not see
16 # <http://www.gnu.org/licenses/>.
18 # Please email any bugs, comments, and/or additions to this file to:
19 # gcc-patches@gcc.gnu.org
21 # This file defines procs for determining features supported by the target.
23 # Try to compile some code and return the messages printed by the compiler,
24 # and optionally the contents for assembly files. Either a string or
25 # a list of two strings are returned, depending on WANT_OUTPUT.
27 # BASENAME is a basename to use for temporary files.
28 # WANT_OUTPUT is a flag which is 0 to request returning just the
29 # compiler messages, or 1 to return the messages and the contents
30 # of the assembly file. TYPE should be "assembly" if WANT_OUTPUT
32 # TYPE is the type of compilation to perform (see target_compile).
33 # CONTENTS gives the contents of the input file.
34 # The rest is optional:
35 # OPTIONS: additional compiler options to use.
36 proc get_compiler_messages {basename want_output type contents args} {
39 if { [llength $args] > 0 } {
40 set options [list "additional_flags=[lindex $args 0]"]
45 set src ${basename}[pid].c
47 assembly { set output ${basename}[pid].s }
48 object { set output ${basename}[pid].o }
53 set lines [${tool}_target_compile $src $output $type "$options"]
57 if { $type != "assembly" } {
58 error "WANT_OUTPUT can only be used with assembly output"
59 } elseif { ![string match "" $lines] } {
61 set result [list $lines ""]
64 set chan [open "$output"]
65 while {[gets $chan line] >= 0} {
69 set result [list $lines $text]
75 remote_file build delete $output
79 proc current_target_name { } {
81 if [info exists target_info(target,name)] {
82 set answer $target_info(target,name)
89 # Implement an effective-target check for property PROP by invoking
90 # the compiler and seeing if it prints any messages. Assume that the
91 # property holds if the compiler doesn't print anything. The other
92 # arguments are as for get_compiler_messages, starting with TYPE.
93 proc check_no_compiler_messages {prop args} {
96 set target [current_target_name]
97 if {![info exists et_cache($prop,target)]
98 || $et_cache($prop,target) != $target} {
99 verbose "check_no_compiler_messages $prop: compiling source for $target" 2
100 set et_cache($prop,target) $target
101 set et_cache($prop,value) \
102 [string match "" [eval get_compiler_messages $prop 0 $args]]
104 set value $et_cache($prop,value)
105 verbose "check_no_compiler_messages $prop: returning $value for $target" 2
109 # Similar to check_no_compiler_messages, but also verify that the regular
110 # expression PATTERN matches the compiler's output.
111 proc check_no_messages_and_pattern {prop pattern args} {
114 set target [current_target_name]
115 if {![info exists et_cache($prop,target)]
116 || $et_cache($prop,target) != $target} {
117 verbose "check_no_messages_and_pattern $prop: compiling source for $target" 2
118 set et_cache($prop,target) $target
119 set results [eval get_compiler_messages $prop 1 $args]
120 set et_cache($prop,value) \
121 [expr [string match "" [lindex $results 0]] \
122 && [regexp $pattern [lindex $results 1]]]
124 set value $et_cache($prop,value)
125 verbose "check_no_messages_and_pattern $prop: returning $value for $target" 2
129 ###############################
130 # proc check_weak_available { }
131 ###############################
133 # weak symbols are only supported in some configs/object formats
134 # this proc returns 1 if they're supported, 0 if they're not, or -1 if unsure
136 proc check_weak_available { } {
137 global target_triplet
140 # All mips targets should support it
142 if { [ string first "mips" $target_cpu ] >= 0 } {
146 # All solaris2 targets should support it
148 if { [regexp ".*-solaris2.*" $target_triplet] } {
152 # DEC OSF/1/Digital UNIX/Tru64 UNIX supports it
154 if { [regexp "alpha.*osf.*" $target_triplet] } {
158 # Windows targets Cygwin and MingW32 support it
160 if { [regexp ".*mingw32|.*cygwin" $target_triplet] } {
164 # HP-UX 10.X doesn't support it
166 if { [istarget "hppa*-*-hpux10*"] } {
170 # ELF and ECOFF support it. a.out does with gas/gld but may also with
171 # other linkers, so we should try it
173 set objformat [gcc_target_object_format]
181 unknown { return -1 }
186 ###############################
187 # proc check_visibility_available { what_kind }
188 ###############################
190 # The visibility attribute is only support in some object formats
191 # This proc returns 1 if it is supported, 0 if not.
192 # The argument is the kind of visibility, default/protected/hidden/internal.
194 proc check_visibility_available { what_kind } {
196 global target_triplet
198 # On NetWare, support makes no sense.
199 if { [istarget *-*-netware*] } {
203 if [string match "" $what_kind] { set what_kind "hidden" }
205 return [check_no_compiler_messages visibility_available_$what_kind object "
206 void f() __attribute__((visibility(\"$what_kind\")));
211 ###############################
212 # proc check_alias_available { }
213 ###############################
215 # Determine if the target toolchain supports the alias attribute.
217 # Returns 2 if the target supports aliases. Returns 1 if the target
218 # only supports weak aliased. Returns 0 if the target does not
219 # support aliases at all. Returns -1 if support for aliases could not
222 proc check_alias_available { } {
223 global alias_available_saved
226 if [info exists alias_available_saved] {
227 verbose "check_alias_available returning saved $alias_available_saved" 2
231 verbose "check_alias_available compiling testfile $src" 2
232 set f [open $src "w"]
233 # Compile a small test program. The definition of "g" is
234 # necessary to keep the Solaris assembler from complaining
236 puts $f "#ifdef __cplusplus\nextern \"C\"\n#endif\n"
237 puts $f "void g() {} void f() __attribute__((alias(\"g\")));"
239 set lines [${tool}_target_compile $src $obj object ""]
241 remote_file build delete $obj
243 if [string match "" $lines] then {
244 # No error messages, everything is OK.
245 set alias_available_saved 2
247 if [regexp "alias definitions not supported" $lines] {
248 verbose "check_alias_available target does not support aliases" 2
250 set objformat [gcc_target_object_format]
252 if { $objformat == "elf" } {
253 verbose "check_alias_available but target uses ELF format, so it ought to" 2
254 set alias_available_saved -1
256 set alias_available_saved 0
259 if [regexp "only weak aliases are supported" $lines] {
260 verbose "check_alias_available target supports only weak aliases" 2
261 set alias_available_saved 1
263 set alias_available_saved -1
268 verbose "check_alias_available returning $alias_available_saved" 2
271 return $alias_available_saved
274 # Returns true if --gc-sections is supported on the target.
276 proc check_gc_sections_available { } {
277 global gc_sections_available_saved
280 if {![info exists gc_sections_available_saved]} {
281 # Some targets don't support gc-sections despite whatever's
282 # advertised by ld's options.
283 if { [istarget alpha*-*-*]
284 || [istarget ia64-*-*] } {
285 set gc_sections_available_saved 0
289 # elf2flt uses -q (--emit-relocs), which is incompatible with
291 if { [board_info target exists ldflags]
292 && [regexp " -elf2flt\[ =\]" " [board_info target ldflags] "] } {
293 set gc_sections_available_saved 0
297 # VxWorks kernel modules are relocatable objects linked with -r,
298 # while RTP executables are linked with -q (--emit-relocs).
299 # Both of these options are incompatible with --gc-sections.
300 if { [istarget *-*-vxworks*] } {
301 set gc_sections_available_saved 0
305 # Check if the ld used by gcc supports --gc-sections.
306 set gcc_spec [${tool}_target_compile "-dumpspecs" "" "none" ""]
307 regsub ".*\n\*linker:\[ \t\]*\n(\[^ \t\n\]*).*" "$gcc_spec" {\1} linker
308 set gcc_ld [lindex [${tool}_target_compile "-print-prog-name=$linker" "" "none" ""] 0]
309 set ld_output [remote_exec host "$gcc_ld" "--help"]
310 if { [ string first "--gc-sections" $ld_output ] >= 0 } {
311 set gc_sections_available_saved 1
313 set gc_sections_available_saved 0
316 return $gc_sections_available_saved
319 # Return true if profiling is supported on the target.
321 proc check_profiling_available { test_what } {
322 global profiling_available_saved
324 verbose "Profiling argument is <$test_what>" 1
326 # These conditions depend on the argument so examine them before
327 # looking at the cache variable.
329 # Support for -p on solaris2 relies on mcrt1.o which comes with the
330 # vendor compiler. We cannot reliably predict the directory where the
331 # vendor compiler (and thus mcrt1.o) is installed so we can't
332 # necessarily find mcrt1.o even if we have it.
333 if { [istarget *-*-solaris2*] && [lindex $test_what 1] == "-p" } {
337 # Support for -p on irix relies on libprof1.a which doesn't appear to
338 # exist on any irix6 system currently posting testsuite results.
339 # Support for -pg on irix relies on gcrt1.o which doesn't exist yet.
340 # See: http://gcc.gnu.org/ml/gcc/2002-10/msg00169.html
341 if { [istarget mips*-*-irix*]
342 && ([lindex $test_what 1] == "-p" || [lindex $test_what 1] == "-pg") } {
346 # At present, there is no profiling support on NetWare.
347 if { [istarget *-*-netware*] } {
351 # uClibc does not have gcrt1.o.
352 if { [check_effective_target_uclibc]
353 && ([lindex $test_what 1] == "-p"
354 || [lindex $test_what 1] == "-pg") } {
358 # Now examine the cache variable.
359 if {![info exists profiling_available_saved]} {
360 # Some targets don't have any implementation of __bb_init_func or are
361 # missing other needed machinery.
362 if { [istarget mmix-*-*]
363 || [istarget arm*-*-eabi*]
364 || [istarget arm*-*-elf]
365 || [istarget arm*-*-symbianelf*]
366 || [istarget bfin-*-*]
367 || [istarget powerpc-*-eabi*]
368 || [istarget strongarm*-*-elf]
369 || [istarget xscale*-*-elf]
370 || [istarget cris-*-*]
371 || [istarget fido-*-elf]
372 || [istarget h8300-*-*]
373 || [istarget m32c-*-elf]
374 || [istarget m68k-*-elf]
375 || [istarget m68k-*-uclinux*]
376 || [istarget mips*-*-elf*]
377 || [istarget xtensa-*-elf]
378 || [istarget *-*-vxworks*]
379 || [istarget *-*-windiss] } {
380 set profiling_available_saved 0
382 set profiling_available_saved 1
386 return $profiling_available_saved
389 # Return 1 if target has packed layout of structure members by
390 # default, 0 otherwise. Note that this is slightly different than
391 # whether the target has "natural alignment": both attributes may be
394 proc check_effective_target_default_packed { } {
395 return [check_no_compiler_messages default_packed assembly {
396 struct x { char a; long b; } c;
397 int s[sizeof (c) == sizeof (char) + sizeof (long) ? 1 : -1];
401 # Return 1 if target has PCC_BITFIELD_TYPE_MATTERS defined. See
402 # documentation, where the test also comes from.
404 proc check_effective_target_pcc_bitfield_type_matters { } {
405 # PCC_BITFIELD_TYPE_MATTERS isn't just about unnamed or empty
406 # bitfields, but let's stick to the example code from the docs.
407 return [check_no_compiler_messages pcc_bitfield_type_matters assembly {
408 struct foo1 { char x; char :0; char y; };
409 struct foo2 { char x; int :0; char y; };
410 int s[sizeof (struct foo1) != sizeof (struct foo2) ? 1 : -1];
414 # Return 1 if thread local storage (TLS) is supported, 0 otherwise.
416 # This won't change for different subtargets so cache the result.
418 proc check_effective_target_tls {} {
422 if [info exists et_tls_saved] {
423 verbose "check_effective_target_tls: using cached result" 2
429 verbose "check_effective_target_tls: compiling testfile $src" 2
430 set f [open $src "w"]
431 # Compile a small test program. Make sure that we test accesses
432 # as well as declarations.
433 puts $f "__thread int i;\n"
434 puts $f "int f (void) { return i; }\n"
435 puts $f "void g (int j) { i = j; }\n"
438 # Test for thread-local data supported by the platform.
440 [${tool}_target_compile $src $asm assembly ""]
442 if { [string match "" $comp_output] } {
443 # No error messages, everything is OK.
446 remove-build-file $asm
448 verbose "check_effective_target_tls: returning $et_tls_saved" 2
452 # Return 1 if *native* thread local storage (TLS) is supported, 0 otherwise.
454 # This won't change for different subtargets so cache the result.
456 proc check_effective_target_tls_native {} {
457 global et_tls_native_saved
460 if [info exists et_tls_saved] {
461 verbose "check_effective_target_tls_native: using cached result" 2
463 set et_tls_native_saved 0
467 verbose "check_effective_target_tls_native: compiling testfile $src" 2
468 set f [open $src "w"]
469 # Compile a small test program. Make sure that we test accesses
470 # as well as declarations.
471 puts $f "__thread int i;\n"
472 puts $f "int f (void) { return i; }\n"
473 puts $f "void g (int j) { i = j; }\n"
476 # Test for thread-local data supported by the platform.
477 set comp_output [${tool}_target_compile $src $asm assembly ""]
479 if { [string match "" $comp_output] } {
480 # No error messages, everything is OK.
484 if { [string match "*emutls*" $text]} {
485 set et_tls_native_saved 0
487 set et_tls_native_saved 1
490 remove-build-file $asm
492 verbose "check_effective_target_tls_native: returning $et_tls_native_saved" 2
493 return $et_tls_native_saved
496 # Return 1 if TLS executables can run correctly, 0 otherwise.
498 # This won't change for different subtargets so cache the result.
500 proc check_effective_target_tls_runtime {} {
501 global et_tls_runtime_saved
504 if [info exists et_tls_runtime_saved] {
505 verbose "check_effective_target_tls_runtime: using cached result" 2
507 set et_tls_runtime_saved 0
509 set src tls_runtime[pid].c
510 set exe tls_runtime[pid].x
511 verbose "check_effective_target_tls_runtime: compiling testfile $src" 2
512 set f [open $src "w"]
513 # Compile a small test program.
514 puts $f "__thread int thr = 0;\n"
515 puts $f "int main(void)\n {\n return thr;\n}"
519 [${tool}_target_compile $src $exe executable ""]
522 if [string match "" $comp_output] then {
523 # No error messages, everything is OK.
525 set result [remote_load target "./$exe" "" ""]
526 set status [lindex $result 0]
527 remote_file build delete $exe
529 verbose "check_effective_target_tls_runtime status is <$status>" 2
531 if { $status == "pass" } {
532 set et_tls_runtime_saved 1
535 verbose "check_effective_target_tls_runtime: returning $et_tls_runtime_saved" 2
539 return $et_tls_runtime_saved
542 # Return 1 if compilation with -fopenmp is error-free for trivial
545 proc check_effective_target_fopenmp {} {
546 return [check_no_compiler_messages fopenmp object {
551 # Return 1 if the target supports -fstack-protector
552 proc check_effective_target_fstack_protector {} {
556 set src stack_prot[pid].c
557 set exe stack_prot[pid].x
559 verbose "check_effective_target_fstack_protector compiling testfile $src" 2
561 set f [open $src "w"]
562 # Compile a small test program.
563 puts $f "int main (void)\n { return 0; }\n"
566 set opts "additional_flags=-fstack-protector"
567 set lines [${tool}_target_compile $src $exe executable "$opts" ]
570 if [string match "" $lines] then {
571 # No error messages, everything is OK.
572 set result [${tool}_load "./$exe" "" ""]
573 set status [lindex $result 0]
574 remote_file build delete $exe
575 verbose "check_iconv_available status is <$status>" 2
577 if { $status == "pass" } then {
584 # Return 1 if compilation with -freorder-blocks-and-partition is error-free
585 # for trivial code, 0 otherwise.
587 proc check_effective_target_freorder {} {
588 return [check_no_compiler_messages freorder object {
590 } "-freorder-blocks-and-partition"]
593 # Return 1 if -fpic and -fPIC are supported, as in no warnings or errors
594 # emitted, 0 otherwise. Whether a shared library can actually be built is
595 # out of scope for this test.
597 proc check_effective_target_fpic { } {
598 # Note that M68K has a multilib that supports -fpic but not
599 # -fPIC, so we need to check both. We test with a program that
600 # requires GOT references.
601 foreach arg {fpic fPIC} {
602 if [check_no_compiler_messages $arg object {
603 extern int foo (void); extern int bar;
604 int baz (void) { return foo () + bar; }
612 # Return true if the target supports -mpaired-single (as used on MIPS).
614 proc check_effective_target_mpaired_single { } {
615 return [check_no_compiler_messages mpaired_single object {
620 # Return 1 if the current multilib does not generate PIC by default.
622 proc check_effective_target_nonpic { } {
623 return [check_no_compiler_messages nonpic assembly {
630 # Return 1 if the target does not use a status wrapper.
632 proc check_effective_target_unwrapped { } {
633 if { [target_info needs_status_wrapper] != "" \
634 && [target_info needs_status_wrapper] != "0" } {
640 # Return true if iconv is supported on the target. In particular IBM1047.
642 proc check_iconv_available { test_what } {
650 verbose "check_iconv_available compiling testfile $src" 2
651 set f [open $src "w"]
652 # Compile a small test program.
653 puts $f "#include <iconv.h>\n"
654 puts $f "int main (void)\n {\n iconv_t cd; \n"
655 puts $f "cd = iconv_open (\"[lindex $test_what 1]\", \"UTF-8\");\n"
656 puts $f "if (cd == (iconv_t) -1)\n return 1;\n"
657 puts $f "return 0;\n}"
660 # If the tool configuration file has not set libiconv, try "-liconv"
661 if { ![info exists libiconv] } {
662 set libiconv "-liconv"
664 set lines [${tool}_target_compile $src $exe executable "libs=$libiconv" ]
667 if [string match "" $lines] then {
668 # No error messages, everything is OK.
670 set result [${tool}_load "./$exe" "" ""]
671 set status [lindex $result 0]
672 remote_file build delete $exe
674 verbose "check_iconv_available status is <$status>" 2
676 if { $status == "pass" } then {
684 # Return true if named sections are supported on this target.
686 proc check_named_sections_available { } {
687 return [check_no_compiler_messages named_sections assembly {
688 int __attribute__ ((section("whatever"))) foo;
692 # Return 1 if the target supports Fortran real kinds larger than real(8),
695 # When the target name changes, replace the cached result.
697 proc check_effective_target_fortran_large_real { } {
698 global et_fortran_large_real_saved
699 global et_fortran_large_real_target_name
702 if { ![info exists et_fortran_large_real_target_name] } {
703 set et_fortran_large_real_target_name ""
706 # If the target has changed since we set the cached value, clear it.
707 set current_target [current_target_name]
708 if { $current_target != $et_fortran_large_real_target_name } {
709 verbose "check_effective_target_fortran_large_real: `$et_fortran_large_real_target_name' `$current_target'" 2
710 set et_fortran_large_real_target_name $current_target
711 if [info exists et_fortran_large_real_saved] {
712 verbose "check_effective_target_fortran_large_real: removing cached result" 2
713 unset et_fortran_large_real_saved
717 if [info exists et_fortran_large_real_saved] {
718 verbose "check_effective_target_fortran_large_real returning saved $et_fortran_large_real_saved" 2
720 set et_fortran_large_real_saved 0
722 # Set up, compile, and execute a test program using large real
723 # kinds. Include the current process ID in the file names to
724 # prevent conflicts with invocations for multiple testsuites.
725 set src real[pid].f90
728 set f [open $src "w"]
729 puts $f "integer,parameter :: k = &"
730 puts $f " selected_real_kind (precision (0.0_8) + 1)"
731 puts $f "real(kind=k) :: x"
732 puts $f "x = cos (x);"
736 verbose "check_effective_target_fortran_large_real compiling testfile $src" 2
737 set lines [${tool}_target_compile $src $exe executable ""]
740 if [string match "" $lines] then {
741 # No error message, compilation succeeded.
742 remote_file build delete $exe
743 set et_fortran_large_real_saved 1
747 return $et_fortran_large_real_saved
750 # Return 1 if the target supports Fortran integer kinds larger than
751 # integer(8), 0 otherwise.
753 # When the target name changes, replace the cached result.
755 proc check_effective_target_fortran_large_int { } {
756 global et_fortran_large_int_saved
757 global et_fortran_large_int_target_name
760 if { ![info exists et_fortran_large_int_target_name] } {
761 set et_fortran_large_int_target_name ""
764 # If the target has changed since we set the cached value, clear it.
765 set current_target [current_target_name]
766 if { $current_target != $et_fortran_large_int_target_name } {
767 verbose "check_effective_target_fortran_large_int: `$et_fortran_large_int_target_name' `$current_target'" 2
768 set et_fortran_large_int_target_name $current_target
769 if [info exists et_fortran_large_int_saved] {
770 verbose "check_effective_target_fortran_large_int: removing cached result" 2
771 unset et_fortran_large_int_saved
775 if [info exists et_fortran_large_int_saved] {
776 verbose "check_effective_target_fortran_large_int returning saved $et_fortran_large_int_saved" 2
778 set et_fortran_large_int_saved 0
780 # Set up, compile, and execute a test program using large integer
781 # kinds. Include the current process ID in the file names to
782 # prevent conflicts with invocations for multiple testsuites.
786 set f [open $src "w"]
787 puts $f "integer,parameter :: k = &"
788 puts $f " selected_int_kind (range (0_8) + 1)"
789 puts $f "integer(kind=k) :: i"
793 verbose "check_effective_target_fortran_large_int compiling testfile $src" 2
794 set lines [${tool}_target_compile $src $exe executable ""]
797 if [string match "" $lines] then {
798 # No error message, compilation succeeded.
799 remote_file build delete $exe
800 set et_fortran_large_int_saved 1
804 return $et_fortran_large_int_saved
807 # Return 1 if we can statically link libgfortran, 0 otherwise.
809 # When the target name changes, replace the cached result.
811 proc check_effective_target_static_libgfortran { } {
812 global et_static_libgfortran
813 global et_static_libgfortran_target_name
816 if { ![info exists et_static_libgfortran_target_name] } {
817 set et_static_libgfortran_target_name ""
820 # If the target has changed since we set the cached value, clear it.
821 set current_target [current_target_name]
822 if { $current_target != $et_static_libgfortran_target_name } {
823 verbose "check_effective_target_static_libgfortran: `$et_static_libgfortran_target_name' `$current_target'" 2
824 set et_static_libgfortran_target_name $current_target
825 if [info exists et_static_libgfortran_saved] {
826 verbose "check_effective_target_static_libgfortran: removing cached result" 2
827 unset et_static_libgfortran_saved
831 if [info exists et_static_libgfortran_saved] {
832 verbose "check_effective_target_static_libgfortran returning saved $et_static_libgfortran_saved" 2
834 set et_static_libgfortran_saved 0
836 # Set up, compile, and execute a test program using static linking.
837 # Include the current process ID in the file names to prevent
838 # conflicts with invocations for multiple testsuites.
839 set opts "additional_flags=-static"
840 set src static[pid].f
841 set exe static[pid].x
843 set f [open $src "w"]
844 puts $f " print *, 'test'"
848 verbose "check_effective_target_static_libgfortran compiling testfile $src" 2
849 set lines [${tool}_target_compile $src $exe executable "$opts"]
852 if [string match "" $lines] then {
853 # No error message, compilation succeeded.
854 remote_file build delete $exe
855 set et_static_libgfortran_saved 1
859 return $et_static_libgfortran_saved
862 # Return 1 if the target supports executing AltiVec instructions, 0
863 # otherwise. Cache the result.
865 proc check_vmx_hw_available { } {
866 global vmx_hw_available_saved
869 if [info exists vmx_hw_available_saved] {
870 verbose "check_hw_available returning saved $vmx_hw_available_saved" 2
872 set vmx_hw_available_saved 0
874 # Some simulators are known to not support VMX instructions.
875 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
876 verbose "check_hw_available returning 0" 2
877 return $vmx_hw_available_saved
880 # Set up, compile, and execute a test program containing VMX
881 # instructions. Include the current process ID in the file
882 # names to prevent conflicts with invocations for multiple
887 set f [open $src "w"]
888 puts $f "int main() {"
889 puts $f "#ifdef __MACH__"
890 puts $f " asm volatile (\"vor v0,v0,v0\");"
892 puts $f " asm volatile (\"vor 0,0,0\");"
894 puts $f " return 0; }"
897 # Most targets don't require special flags for this test case, but
899 if [istarget *-*-darwin*] {
900 set opts "additional_flags=-maltivec"
905 verbose "check_vmx_hw_available compiling testfile $src" 2
906 set lines [${tool}_target_compile $src $exe executable "$opts"]
909 if [string match "" $lines] then {
910 # No error message, compilation succeeded.
911 set result [${tool}_load "./$exe" "" ""]
912 set status [lindex $result 0]
913 remote_file build delete $exe
914 verbose "check_vmx_hw_available testfile status is <$status>" 2
916 if { $status == "pass" } then {
917 set vmx_hw_available_saved 1
920 verbose "check_vmx_hw_availalble testfile compilation failed" 2
924 return $vmx_hw_available_saved
927 # GCC 3.4.0 for powerpc64-*-linux* included an ABI fix for passing
928 # complex float arguments. This affects gfortran tests that call cabsf
929 # in libm built by an earlier compiler. Return 1 if libm uses the same
930 # argument passing as the compiler under test, 0 otherwise.
932 # When the target name changes, replace the cached result.
934 proc check_effective_target_broken_cplxf_arg { } {
935 global et_broken_cplxf_arg_saved
936 global et_broken_cplxf_arg_target_name
939 # Skip the work for targets known not to be affected.
940 if { ![istarget powerpc64-*-linux*] } {
942 } elseif { [is-effective-target ilp32] } {
946 if { ![info exists et_broken_cplxf_arg_target_name] } {
947 set et_broken_cplxf_arg_target_name ""
950 # If the target has changed since we set the cached value, clear it.
951 set current_target [current_target_name]
952 if { $current_target != $et_broken_cplxf_arg_target_name } {
953 verbose "check_effective_target_broken_cplxf_arg: `$et_broken_cplxf_arg_target_name'" 2
954 set et_broken_cplxf_arg_target_name $current_target
955 if [info exists et_broken_cplxf_arg_saved] {
956 verbose "check_effective_target_broken_cplxf_arg: removing cached result" 2
957 unset et_broken_cplxf_arg_saved
961 if [info exists et_broken_cplxf_arg_saved] {
962 verbose "check_effective_target_broken_cplxf_arg: using cached result" 2
964 set et_broken_cplxf_arg_saved 0
965 # This is only known to affect one target.
966 if { ![istarget powerpc64-*-linux*] || ![is-effective-target lp64] } {
967 set et_broken_cplxf_arg_saved 0
968 verbose "check_effective_target_broken_cplxf_arg: caching 0" 2
969 return $et_broken_cplxf_arg_saved
972 # Set up, compile, and execute a C test program that calls cabsf.
976 set f [open $src "w"]
977 puts $f "#include <complex.h>"
978 puts $f "extern void abort (void);"
979 puts $f "float fabsf (float);"
980 puts $f "float cabsf (_Complex float);"
981 puts $f "int main ()"
983 puts $f " _Complex float cf;"
985 puts $f " cf = 3 + 4.0fi;"
986 puts $f " f = cabsf (cf);"
987 puts $f " if (fabsf (f - 5.0) > 0.0001) abort ();"
992 set lines [${tool}_target_compile $src $exe executable "-lm"]
995 if [string match "" $lines] {
996 # No error message, compilation succeeded.
997 set result [${tool}_load "./$exe" "" ""]
998 set status [lindex $result 0]
999 remote_file build delete $exe
1001 verbose "check_effective_target_broken_cplxf_arg: status is <$status>" 2
1003 if { $status != "pass" } {
1004 set et_broken_cplxf_arg_saved 1
1007 verbose "check_effective_target_broken_cplxf_arg: compilation failed" 2
1010 return $et_broken_cplxf_arg_saved
1013 proc check_alpha_max_hw_available { } {
1014 global alpha_max_hw_available_saved
1017 if [info exists alpha_max_hw_available_saved] {
1018 verbose "check_alpha_max_hw_available returning saved $alpha_max_hw_available_saved" 2
1020 set alpha_max_hw_available_saved 0
1022 # Set up, compile, and execute a test program probing bit 8 of the
1023 # architecture mask, which indicates presence of MAX instructions.
1027 set f [open $src "w"]
1028 puts $f "int main() { return __builtin_alpha_amask(1<<8) != 0; }"
1031 verbose "check_alpha_max_hw_available compiling testfile $src" 2
1032 set lines [${tool}_target_compile $src $exe executable ""]
1035 if [string match "" $lines] then {
1036 # No error message, compilation succeeded.
1037 set result [${tool}_load "./$exe" "" ""]
1038 set status [lindex $result 0]
1039 remote_file build delete $exe
1040 verbose "check_alpha_max_hw_available testfile status is <$status>" 2
1042 if { $status == "pass" } then {
1043 set alpha_max_hw_available_saved 1
1046 verbose "check_alpha_max_hw_availalble testfile compilation failed" 2
1050 return $alpha_max_hw_available_saved
1053 # Returns true iff the FUNCTION is available on the target system.
1054 # (This is essentially a Tcl implementation of Autoconf's
1057 proc check_function_available { function } {
1058 set var "${function}_available_saved"
1062 if {![info exists $var]} {
1065 # Check to make sure.
1066 set src "function[pid].c"
1067 set exe "function[pid].exe"
1069 set f [open $src "w"]
1070 puts $f "#ifdef __cplusplus\nextern \"C\"\n#endif\n"
1071 puts $f "char $function ();\n"
1072 puts $f "int main () { $function (); }"
1075 set lines [${tool}_target_compile $src $exe executable ""]
1079 if {![string match "" $lines]} then {
1081 verbose -log "$function is not available"
1083 verbose -log "$function is available"
1090 # Returns true iff "fork" is available on the target system.
1092 proc check_fork_available {} {
1093 return [check_function_available "fork"]
1096 # Returns true iff "mkfifo" is available on the target system.
1098 proc check_mkfifo_available {} {
1099 if {[istarget *-*-cygwin*]} {
1100 # Cygwin has mkfifo, but support is incomplete.
1104 return [check_function_available "mkfifo"]
1107 # Returns true iff "__cxa_atexit" is used on the target system.
1109 proc check_cxa_atexit_available { } {
1110 global et_cxa_atexit
1111 global et_cxa_atexit_target_name
1114 if { ![info exists et_cxa_atexit_target_name] } {
1115 set et_cxa_atexit_target_name ""
1118 # If the target has changed since we set the cached value, clear it.
1119 set current_target [current_target_name]
1120 if { $current_target != $et_cxa_atexit_target_name } {
1121 verbose "check_cxa_atexit_available: `$et_cxa_atexit_target_name'" 2
1122 set et_cxa_atexit_target_name $current_target
1123 if [info exists et_cxa_atexit] {
1124 verbose "check_cxa_atexit_available: removing cached result" 2
1129 if [info exists et_cxa_atexit] {
1130 verbose "check_cxa_atexit_available: using cached result" 2
1131 } elseif { [istarget "hppa*-*-hpux10*"] } {
1132 # HP-UX 10 doesn't have __cxa_atexit but subsequent test passes.
1137 # Set up, compile, and execute a C++ test program that depends
1138 # on correct ordering of static object destructors. This is
1139 # indicative of the presence and use of __cxa_atexit.
1140 set src cxaatexit[pid].cc
1141 set exe cxaatexit[pid].x
1143 set f [open $src "w"]
1144 puts $f "#include <stdlib.h>"
1145 puts $f "static unsigned int count;"
1148 puts $f " X() { count = 1; }"
1151 puts $f " if (count != 3)"
1153 puts $f " count = 4;"
1158 puts $f " static X x;"
1162 puts $f " Y() { f(); count = 2; }"
1165 puts $f " if (count != 2)"
1167 puts $f " count = 3;"
1171 puts $f "int main()"
1172 puts $f "{ return 0; }"
1175 set lines [${tool}_target_compile $src $exe executable ""]
1178 if [string match "" $lines] {
1179 # No error message, compilation succeeded.
1180 set result [${tool}_load "./$exe" "" ""]
1181 set status [lindex $result 0]
1182 remote_file build delete $exe
1184 verbose "check_cxa_atexit_available: status is <$status>" 2
1186 if { $status == "pass" } {
1190 verbose "check_cxa_atexit_available: compilation failed" 2
1193 return $et_cxa_atexit
1197 # Return 1 if we're generating 32-bit code using default options, 0
1200 proc check_effective_target_ilp32 { } {
1201 return [check_no_compiler_messages ilp32 object {
1202 int dummy[sizeof (int) == 4
1203 && sizeof (void *) == 4
1204 && sizeof (long) == 4 ? 1 : -1];
1208 # Return 1 if we're generating 32-bit or larger integers using default
1209 # options, 0 otherwise.
1211 proc check_effective_target_int32plus { } {
1212 return [check_no_compiler_messages int32plus object {
1213 int dummy[sizeof (int) >= 4 ? 1 : -1];
1217 # Return 1 if we're generating 32-bit or larger pointers using default
1218 # options, 0 otherwise.
1220 proc check_effective_target_ptr32plus { } {
1221 return [check_no_compiler_messages ptr32plus object {
1222 int dummy[sizeof (void *) >= 4 ? 1 : -1];
1226 # Return 1 if we support 32-bit or larger array and structure sizes
1227 # using default options, 0 otherwise.
1229 proc check_effective_target_size32plus { } {
1230 return [check_no_compiler_messages size32plus object {
1235 # Returns 1 if we're generating 16-bit or smaller integers with the
1236 # default options, 0 otherwise.
1238 proc check_effective_target_int16 { } {
1239 return [check_no_compiler_messages int16 object {
1240 int dummy[sizeof (int) < 4 ? 1 : -1];
1244 # Return 1 if we're generating 64-bit code using default options, 0
1247 proc check_effective_target_lp64 { } {
1248 return [check_no_compiler_messages lp64 object {
1249 int dummy[sizeof (int) == 4
1250 && sizeof (void *) == 8
1251 && sizeof (long) == 8 ? 1 : -1];
1255 # Return 1 if the target supports long double larger than double,
1258 proc check_effective_target_large_long_double { } {
1259 return [check_no_compiler_messages large_long_double object {
1260 int dummy[sizeof(long double) > sizeof(double) ? 1 : -1];
1265 # Return 1 if the target supports compiling decimal floating point,
1268 proc check_effective_target_dfp_nocache { } {
1269 verbose "check_effective_target_dfp_nocache: compiling source" 2
1270 set ret [string match "" [get_compiler_messages dfp 0 object {
1271 _Decimal32 x; _Decimal64 y; _Decimal128 z;
1273 verbose "check_effective_target_dfp_nocache: returning $ret" 2
1277 proc check_effective_target_dfprt_nocache { } {
1282 verbose "check_effective_target_dfprt_nocache: compiling source" 2
1283 # Set up, compile, and execute a test program containing decimal
1285 set src dfprt[pid].c
1286 set exe dfprt[pid].x
1288 set f [open $src "w"]
1289 puts $f "_Decimal32 x = 1.2df; _Decimal64 y = 2.3dd; _Decimal128 z;"
1290 puts $f "int main () { z = x + y; return 0; }"
1293 verbose "check_effective_target_dfprt_nocache: compiling testfile $src" 2
1294 set lines [${tool}_target_compile $src $exe executable ""]
1297 if [string match "" $lines] then {
1298 # No error message, compilation succeeded.
1299 set result [${tool}_load "./$exe" "" ""]
1300 set status [lindex $result 0]
1301 remote_file build delete $exe
1302 verbose "check_effective_target_dfprt_nocache: testfile status is <$status>" 2
1303 if { $status == "pass" } then {
1308 verbose "check_effective_target_dfprt_nocache: returning $ret" 2
1311 # Return 1 if the target supports compiling Decimal Floating Point,
1314 # This won't change for different subtargets so cache the result.
1316 proc check_effective_target_dfp { } {
1319 if [info exists et_dfp_saved] {
1320 verbose "check_effective_target_dfp: using cached result" 2
1322 set et_dfp_saved [check_effective_target_dfp_nocache]
1324 verbose "check_effective_target_dfp: returning $et_dfp_saved" 2
1325 return $et_dfp_saved
1328 # Return 1 if the target supports linking and executing Decimal Floating
1329 # Point, # 0 otherwise.
1331 # This won't change for different subtargets so cache the result.
1333 proc check_effective_target_dfprt { } {
1334 global et_dfprt_saved
1337 if [info exists et_dfprt_saved] {
1338 verbose "check_effective_target_dfprt: using cached result" 2
1340 set et_dfprt_saved [check_effective_target_dfprt_nocache]
1342 verbose "check_effective_target_dfprt: returning $et_dfprt_saved" 2
1343 return $et_dfprt_saved
1346 # Return 1 if the target needs a command line argument to enable a SIMD
1349 proc check_effective_target_vect_cmdline_needed { } {
1350 global et_vect_cmdline_needed_saved
1351 global et_vect_cmdline_needed_target_name
1353 if { ![info exists et_vect_cmdline_needed_target_name] } {
1354 set et_vect_cmdline_needed_target_name ""
1357 # If the target has changed since we set the cached value, clear it.
1358 set current_target [current_target_name]
1359 if { $current_target != $et_vect_cmdline_needed_target_name } {
1360 verbose "check_effective_target_vect_cmdline_needed: `$et_vect_cmdline_needed_target_name' `$current_target'" 2
1361 set et_vect_cmdline_needed_target_name $current_target
1362 if { [info exists et_vect_cmdline_needed_saved] } {
1363 verbose "check_effective_target_vect_cmdline_needed: removing cached result" 2
1364 unset et_vect_cmdline_needed_saved
1368 if [info exists et_vect_cmdline_needed_saved] {
1369 verbose "check_effective_target_vect_cmdline_needed: using cached result" 2
1371 set et_vect_cmdline_needed_saved 1
1372 if { [istarget ia64-*-*]
1373 || (([istarget x86_64-*-*] || [istarget i?86-*-*])
1374 && [check_effective_target_lp64])
1375 || ([istarget powerpc*-*-*]
1376 && ([check_effective_target_powerpc_spe]
1377 || [check_effective_target_powerpc_altivec]))} {
1378 set et_vect_cmdline_needed_saved 0
1382 verbose "check_effective_target_vect_cmdline_needed: returning $et_vect_cmdline_needed_saved" 2
1383 return $et_vect_cmdline_needed_saved
1386 # Return 1 if the target supports hardware vectors of int, 0 otherwise.
1388 # This won't change for different subtargets so cache the result.
1390 proc check_effective_target_vect_int { } {
1391 global et_vect_int_saved
1393 if [info exists et_vect_int_saved] {
1394 verbose "check_effective_target_vect_int: using cached result" 2
1396 set et_vect_int_saved 0
1397 if { [istarget i?86-*-*]
1398 || [istarget powerpc*-*-*]
1399 || [istarget spu-*-*]
1400 || [istarget x86_64-*-*]
1401 || [istarget sparc*-*-*]
1402 || [istarget alpha*-*-*]
1403 || [istarget ia64-*-*] } {
1404 set et_vect_int_saved 1
1408 verbose "check_effective_target_vect_int: returning $et_vect_int_saved" 2
1409 return $et_vect_int_saved
1412 # Return 1 if the target supports int->float conversion
1415 proc check_effective_target_vect_intfloat_cvt { } {
1416 global et_vect_intfloat_cvt_saved
1418 if [info exists et_vect_intfloat_cvt_saved] {
1419 verbose "check_effective_target_vect_intfloat_cvt: using cached result" 2
1421 set et_vect_intfloat_cvt_saved 0
1422 if { [istarget i?86-*-*]
1423 || [istarget powerpc*-*-*]
1424 || [istarget x86_64-*-*] } {
1425 set et_vect_intfloat_cvt_saved 1
1429 verbose "check_effective_target_vect_intfloat_cvt: returning $et_vect_intfloat_cvt_saved" 2
1430 return $et_vect_intfloat_cvt_saved
1434 # Return 1 if the target supports float->int conversion
1437 proc check_effective_target_vect_floatint_cvt { } {
1438 global et_vect_floatint_cvt_saved
1440 if [info exists et_vect_floatint_cvt_saved] {
1441 verbose "check_effective_target_vect_floatint_cvt: using cached result" 2
1443 set et_vect_floatint_cvt_saved 0
1444 if { [istarget i?86-*-*]
1445 || [istarget x86_64-*-*] } {
1446 set et_vect_floatint_cvt_saved 1
1450 verbose "check_effective_target_vect_floatint_cvt: returning $et_vect_floatint_cvt_saved" 2
1451 return $et_vect_floatint_cvt_saved
1455 # Return 1 is this is an arm target using 32-bit instructions
1456 proc check_effective_target_arm32 { } {
1457 return [check_no_compiler_messages arm32 assembly {
1458 #if !defined(__arm__) || (defined(__thumb__) && !defined(__thumb2__))
1464 # Return 1 if this is an ARM target supporting -mfpu=vfp
1465 # -mfloat-abi=softfp. Some multilibs may be incompatible with these
1468 proc check_effective_target_arm_vfp_ok { } {
1469 if { [check_effective_target_arm32] } {
1470 return [check_no_compiler_messages arm_vfp_ok object {
1472 } "-mfpu=vfp -mfloat-abi=softfp"]
1478 # Return 1 if this is an ARM target supporting -mfpu=neon
1479 # -mfloat-abi=softfp. Some multilibs may be incompatible with these
1482 proc check_effective_target_arm_neon_ok { } {
1483 if { [check_effective_target_arm32] } {
1484 return [check_no_compiler_messages arm_neon_ok object {
1486 } "-mfpu=neon -mfloat-abi=softfp"]
1492 # Return 1 if the target supports executing NEON instructions, 0
1493 # otherwise. Cache the result.
1495 proc check_effective_target_arm_neon_hw { } {
1496 global arm_neon_hw_available_saved
1499 if [info exists arm_neon_hw_available_saved] {
1500 verbose "check_arm_neon_hw_available returning saved $arm_neon_hw_avail
1503 set arm_neon_hw_available_saved 0
1505 # Set up, compile, and execute a test program containing NEON
1506 # instructions. Include the current process ID in the file
1507 # names to prevent conflicts with invocations for multiple
1512 set f [open $src "w"]
1513 puts $f "int main() {"
1514 puts $f " long long a = 0, b = 1;"
1515 puts $f " asm (\"vorr %P0, %P1, %P2\""
1516 puts $f " : \"=w\" (a)"
1517 puts $f " : \"0\" (a), \"w\" (b));"
1518 puts $f " return (a != 1);"
1522 set opts "additional_flags=-mfpu=neon additional_flags=-mfloat-abi=softfp"
1524 verbose "check_arm_neon_hw_available compiling testfile $src" 2
1525 set lines [${tool}_target_compile $src $exe executable "$opts"]
1528 if [string match "" $lines] then {
1529 # No error message, compilation succeeded.
1530 set result [${tool}_load "./$exe" "" ""]
1531 set status [lindex $result 0]
1532 remote_file build delete $exe
1533 verbose "check_arm_neon_hw_available testfile status is <$status>" 2
1535 if { $status == "pass" } then {
1536 set arm_neon_hw_available_saved 1
1539 verbose "check_arm_neon_hw_available testfile compilation failed" 2
1543 return $arm_neon_hw_available_saved
1546 # Return 1 if this is a PowerPC target with floating-point registers.
1548 proc check_effective_target_powerpc_fprs { } {
1549 if { [istarget powerpc*-*-*]
1550 || [istarget rs6000-*-*] } {
1551 return [check_no_compiler_messages powerpc_fprs object {
1563 # Return 1 if this is a PowerPC target supporting -maltivec.
1565 proc check_effective_target_powerpc_altivec_ok { } {
1566 if { [istarget powerpc*-*-*]
1567 || [istarget rs6000-*-*] } {
1568 # AltiVec is not supported on Aix.
1569 if { [istarget powerpc*-*-aix*] } {
1572 return [check_no_compiler_messages powerpc_altivec_ok object {
1580 # Return 1 if this is a PowerPC target with SPE enabled.
1582 proc check_effective_target_powerpc_spe { } {
1583 if { [istarget powerpc*-*-*] } {
1584 return [check_no_compiler_messages powerpc_spe object {
1596 # Return 1 if this is a PowerPC target with Altivec enabled.
1598 proc check_effective_target_powerpc_altivec { } {
1599 if { [istarget powerpc*-*-*] } {
1600 return [check_no_compiler_messages powerpc_altivec object {
1612 # The VxWorks SPARC simulator accepts only EM_SPARC executables and
1613 # chokes on EM_SPARC32PLUS or EM_SPARCV9 executables. Return 1 if the
1614 # test environment appears to run executables on such a simulator.
1616 proc check_effective_target_ultrasparc_hw { } {
1617 global et_ultrasparc_hw_saved
1620 if [info exists et_ultrasparc_hw_saved] {
1621 verbose "check_ultrasparc_hw_available returning saved $et_ultrasparc_hw_saved" 2
1623 set et_ultrasparc_hw_saved 0
1625 # Set up, compile, and execute a simple test program. The
1626 # program will be compiled with -mcpu=ultrasparc to instruct the
1627 # assembler to produce EM_SPARC32PLUS executables.
1628 set src svect[pid].c
1629 set exe svect[pid].x
1631 set f [open $src "w"]
1632 puts $f "int main() { return 0; }"
1635 verbose "check_ultrasparc_hw_available compiling testfile $src" 2
1636 set lines [${tool}_target_compile $src $exe executable "additional_flags=-mcpu=ultrasparc"]
1639 if [string match "" $lines] then {
1640 # No error message, compilation succeeded.
1641 set result [${tool}_load "./$exe" "" ""]
1642 set status [lindex $result 0]
1643 remote_file build delete $exe
1644 verbose "check_ultrasparc_hw_available testfile status is <$status>" 2
1646 if { $status == "pass" } then {
1647 set et_ultrasparc_hw_saved 1
1650 verbose "check_ultrasparc_hw_available testfile compilation failed" 2
1654 return $et_ultrasparc_hw_saved
1657 # Return 1 if the target supports hardware vector shift operation.
1659 proc check_effective_target_vect_shift { } {
1660 global et_vect_shift_saved
1662 if [info exists et_vect_shift_saved] {
1663 verbose "check_effective_target_vect_shift: using cached result" 2
1665 set et_vect_shift_saved 0
1666 if { [istarget powerpc*-*-*]
1667 || [istarget ia64-*-*]
1668 || [istarget i?86-*-*]
1669 || [istarget x86_64-*-*] } {
1670 set et_vect_shift_saved 1
1674 verbose "check_effective_target_vect_shift: returning $et_vect_shift_saved" 2
1675 return $et_vect_shift_saved
1678 # Return 1 if the target supports hardware vectors of long, 0 otherwise.
1680 # This can change for different subtargets so do not cache the result.
1682 proc check_effective_target_vect_long { } {
1683 if { [istarget i?86-*-*]
1684 || ([istarget powerpc*-*-*] && [check_effective_target_ilp32])
1685 || [istarget x86_64-*-*]
1686 || ([istarget sparc*-*-*] && [check_effective_target_ilp32]) } {
1692 verbose "check_effective_target_vect_long: returning $answer" 2
1696 # Return 1 if the target supports hardware vectors of float, 0 otherwise.
1698 # This won't change for different subtargets so cache the result.
1700 proc check_effective_target_vect_float { } {
1701 global et_vect_float_saved
1703 if [info exists et_vect_float_saved] {
1704 verbose "check_effective_target_vect_float: using cached result" 2
1706 set et_vect_float_saved 0
1707 if { [istarget i?86-*-*]
1708 || [istarget powerpc*-*-*]
1709 || [istarget spu-*-*]
1710 || [istarget mipsisa64*-*-*]
1711 || [istarget x86_64-*-*]
1712 || [istarget ia64-*-*] } {
1713 set et_vect_float_saved 1
1717 verbose "check_effective_target_vect_float: returning $et_vect_float_saved" 2
1718 return $et_vect_float_saved
1721 # Return 1 if the target supports hardware vectors of double, 0 otherwise.
1723 # This won't change for different subtargets so cache the result.
1725 proc check_effective_target_vect_double { } {
1726 global et_vect_double_saved
1728 if [info exists et_vect_double_saved] {
1729 verbose "check_effective_target_vect_double: using cached result" 2
1731 set et_vect_double_saved 0
1732 if { [istarget i?86-*-*]
1733 || [istarget x86_64-*-*]
1734 || [istarget spu-*-*] } {
1735 set et_vect_double_saved 1
1739 verbose "check_effective_target_vect_double: returning $et_vect_double_saved" 2
1740 return $et_vect_double_saved
1743 # Return 1 if the target plus current options does not support a vector
1744 # max instruction on "int", 0 otherwise.
1746 # This won't change for different subtargets so cache the result.
1748 proc check_effective_target_vect_no_int_max { } {
1749 global et_vect_no_int_max_saved
1751 if [info exists et_vect_no_int_max_saved] {
1752 verbose "check_effective_target_vect_no_int_max: using cached result" 2
1754 set et_vect_no_int_max_saved 0
1755 if { [istarget sparc*-*-*]
1756 || [istarget spu-*-*]
1757 || [istarget alpha*-*-*] } {
1758 set et_vect_no_int_max_saved 1
1761 verbose "check_effective_target_vect_no_int_max: returning $et_vect_no_int_max_saved" 2
1762 return $et_vect_no_int_max_saved
1765 # Return 1 if the target plus current options does not support a vector
1766 # add instruction on "int", 0 otherwise.
1768 # This won't change for different subtargets so cache the result.
1770 proc check_effective_target_vect_no_int_add { } {
1771 global et_vect_no_int_add_saved
1773 if [info exists et_vect_no_int_add_saved] {
1774 verbose "check_effective_target_vect_no_int_add: using cached result" 2
1776 set et_vect_no_int_add_saved 0
1777 # Alpha only supports vector add on V8QI and V4HI.
1778 if { [istarget alpha*-*-*] } {
1779 set et_vect_no_int_add_saved 1
1782 verbose "check_effective_target_vect_no_int_add: returning $et_vect_no_int_add_saved" 2
1783 return $et_vect_no_int_add_saved
1786 # Return 1 if the target plus current options does not support vector
1787 # bitwise instructions, 0 otherwise.
1789 # This won't change for different subtargets so cache the result.
1791 proc check_effective_target_vect_no_bitwise { } {
1792 global et_vect_no_bitwise_saved
1794 if [info exists et_vect_no_bitwise_saved] {
1795 verbose "check_effective_target_vect_no_bitwise: using cached result" 2
1797 set et_vect_no_bitwise_saved 0
1799 verbose "check_effective_target_vect_no_bitwise: returning $et_vect_no_bitwise_saved" 2
1800 return $et_vect_no_bitwise_saved
1803 # Return 1 if the target plus current options supports a vector
1804 # widening summation of *short* args into *int* result, 0 otherwise.
1805 # A target can also support this widening summation if it can support
1806 # promotion (unpacking) from shorts to ints.
1808 # This won't change for different subtargets so cache the result.
1810 proc check_effective_target_vect_widen_sum_hi_to_si { } {
1811 global et_vect_widen_sum_hi_to_si
1813 if [info exists et_vect_widen_sum_hi_to_si_saved] {
1814 verbose "check_effective_target_vect_widen_sum_hi_to_si: using cached result" 2
1816 set et_vect_widen_sum_hi_to_si_saved [check_effective_target_vect_unpack]
1817 if { [istarget powerpc*-*-*]
1818 || [istarget ia64-*-*] } {
1819 set et_vect_widen_sum_hi_to_si_saved 1
1822 verbose "check_effective_target_vect_widen_sum_hi_to_si: returning $et_vect_widen_sum_hi_to_si_saved" 2
1823 return $et_vect_widen_sum_hi_to_si_saved
1826 # Return 1 if the target plus current options supports a vector
1827 # widening summation of *char* args into *short* result, 0 otherwise.
1828 # A target can also support this widening summation if it can support
1829 # promotion (unpacking) from chars to shorts.
1831 # This won't change for different subtargets so cache the result.
1833 proc check_effective_target_vect_widen_sum_qi_to_hi { } {
1834 global et_vect_widen_sum_qi_to_hi
1836 if [info exists et_vect_widen_sum_qi_to_hi_saved] {
1837 verbose "check_effective_target_vect_widen_sum_qi_to_hi: using cached result" 2
1839 set et_vect_widen_sum_qi_to_hi_saved 0
1840 if { [check_effective_target_vect_unpack]
1841 || [istarget ia64-*-*] } {
1842 set et_vect_widen_sum_qi_to_hi_saved 1
1845 verbose "check_effective_target_vect_widen_sum_qi_to_hi: returning $et_vect_widen_sum_qi_to_hi_saved" 2
1846 return $et_vect_widen_sum_qi_to_hi_saved
1849 # Return 1 if the target plus current options supports a vector
1850 # widening summation of *char* args into *int* result, 0 otherwise.
1852 # This won't change for different subtargets so cache the result.
1854 proc check_effective_target_vect_widen_sum_qi_to_si { } {
1855 global et_vect_widen_sum_qi_to_si
1857 if [info exists et_vect_widen_sum_qi_to_si_saved] {
1858 verbose "check_effective_target_vect_widen_sum_qi_to_si: using cached result" 2
1860 set et_vect_widen_sum_qi_to_si_saved 0
1861 if { [istarget powerpc*-*-*] } {
1862 set et_vect_widen_sum_qi_to_si_saved 1
1865 verbose "check_effective_target_vect_widen_sum_qi_to_si: returning $et_vect_widen_sum_qi_to_si_saved" 2
1866 return $et_vect_widen_sum_qi_to_si_saved
1869 # Return 1 if the target plus current options supports a vector
1870 # widening multiplication of *char* args into *short* result, 0 otherwise.
1871 # A target can also support this widening multplication if it can support
1872 # promotion (unpacking) from chars to shorts, and vect_short_mult (non-widening
1873 # multiplication of shorts).
1875 # This won't change for different subtargets so cache the result.
1878 proc check_effective_target_vect_widen_mult_qi_to_hi { } {
1879 global et_vect_widen_mult_qi_to_hi
1881 if [info exists et_vect_widen_mult_qi_to_hi_saved] {
1882 verbose "check_effective_target_vect_widen_mult_qi_to_hi: using cached result" 2
1884 if { [check_effective_target_vect_unpack]
1885 && [check_effective_target_vect_short_mult] } {
1886 set et_vect_widen_mult_qi_to_hi_saved 1
1888 set et_vect_widen_mult_qi_to_hi_saved 0
1890 if { [istarget powerpc*-*-*] } {
1891 set et_vect_widen_mult_qi_to_hi_saved 1
1894 verbose "check_effective_target_vect_widen_mult_qi_to_hi: returning $et_vect_widen_mult_qi_to_hi_saved" 2
1895 return $et_vect_widen_mult_qi_to_hi_saved
1898 # Return 1 if the target plus current options supports a vector
1899 # widening multiplication of *short* args into *int* result, 0 otherwise.
1900 # A target can also support this widening multplication if it can support
1901 # promotion (unpacking) from shorts to ints, and vect_int_mult (non-widening
1902 # multiplication of ints).
1904 # This won't change for different subtargets so cache the result.
1907 proc check_effective_target_vect_widen_mult_hi_to_si { } {
1908 global et_vect_widen_mult_hi_to_si
1910 if [info exists et_vect_widen_mult_hi_to_si_saved] {
1911 verbose "check_effective_target_vect_widen_mult_hi_to_si: using cached result" 2
1913 if { [check_effective_target_vect_unpack]
1914 && [check_effective_target_vect_int_mult] } {
1915 set et_vect_widen_mult_hi_to_si_saved 1
1917 set et_vect_widen_mult_hi_to_si_saved 0
1919 if { [istarget powerpc*-*-*]
1920 || [istarget spu-*-*]
1921 || [istarget i?86-*-*]
1922 || [istarget x86_64-*-*] } {
1923 set et_vect_widen_mult_hi_to_si_saved 1
1926 verbose "check_effective_target_vect_widen_mult_hi_to_si: returning $et_vect_widen_mult_hi_to_si_saved" 2
1927 return $et_vect_widen_mult_hi_to_si_saved
1930 # Return 1 if the target plus current options supports a vector
1931 # dot-product of signed chars, 0 otherwise.
1933 # This won't change for different subtargets so cache the result.
1935 proc check_effective_target_vect_sdot_qi { } {
1936 global et_vect_sdot_qi
1938 if [info exists et_vect_sdot_qi_saved] {
1939 verbose "check_effective_target_vect_sdot_qi: using cached result" 2
1941 set et_vect_sdot_qi_saved 0
1943 verbose "check_effective_target_vect_sdot_qi: returning $et_vect_sdot_qi_saved" 2
1944 return $et_vect_sdot_qi_saved
1947 # Return 1 if the target plus current options supports a vector
1948 # dot-product of unsigned chars, 0 otherwise.
1950 # This won't change for different subtargets so cache the result.
1952 proc check_effective_target_vect_udot_qi { } {
1953 global et_vect_udot_qi
1955 if [info exists et_vect_udot_qi_saved] {
1956 verbose "check_effective_target_vect_udot_qi: using cached result" 2
1958 set et_vect_udot_qi_saved 0
1959 if { [istarget powerpc*-*-*] } {
1960 set et_vect_udot_qi_saved 1
1963 verbose "check_effective_target_vect_udot_qi: returning $et_vect_udot_qi_saved" 2
1964 return $et_vect_udot_qi_saved
1967 # Return 1 if the target plus current options supports a vector
1968 # dot-product of signed shorts, 0 otherwise.
1970 # This won't change for different subtargets so cache the result.
1972 proc check_effective_target_vect_sdot_hi { } {
1973 global et_vect_sdot_hi
1975 if [info exists et_vect_sdot_hi_saved] {
1976 verbose "check_effective_target_vect_sdot_hi: using cached result" 2
1978 set et_vect_sdot_hi_saved 0
1979 if { [istarget powerpc*-*-*]
1980 || [istarget i?86-*-*]
1981 || [istarget x86_64-*-*] } {
1982 set et_vect_sdot_hi_saved 1
1985 verbose "check_effective_target_vect_sdot_hi: returning $et_vect_sdot_hi_saved" 2
1986 return $et_vect_sdot_hi_saved
1989 # Return 1 if the target plus current options supports a vector
1990 # dot-product of unsigned shorts, 0 otherwise.
1992 # This won't change for different subtargets so cache the result.
1994 proc check_effective_target_vect_udot_hi { } {
1995 global et_vect_udot_hi
1997 if [info exists et_vect_udot_hi_saved] {
1998 verbose "check_effective_target_vect_udot_hi: using cached result" 2
2000 set et_vect_udot_hi_saved 0
2001 if { [istarget powerpc*-*-*] } {
2002 set et_vect_udot_hi_saved 1
2005 verbose "check_effective_target_vect_udot_hi: returning $et_vect_udot_hi_saved" 2
2006 return $et_vect_udot_hi_saved
2010 # Return 1 if the target plus current options supports a vector
2011 # demotion (packing) of shorts (to chars) and ints (to shorts)
2012 # using modulo arithmetic, 0 otherwise.
2014 # This won't change for different subtargets so cache the result.
2016 proc check_effective_target_vect_pack_trunc { } {
2017 global et_vect_pack_trunc
2019 if [info exists et_vect_pack_trunc_saved] {
2020 verbose "check_effective_target_vect_pack_trunc: using cached result" 2
2022 set et_vect_pack_trunc_saved 0
2023 if { [istarget powerpc*-*-*]
2024 || [istarget i?86-*-*]
2025 || [istarget x86_64-*-*] } {
2026 set et_vect_pack_trunc_saved 1
2029 verbose "check_effective_target_vect_pack_trunc: returning $et_vect_pack_trunc_saved" 2
2030 return $et_vect_pack_trunc_saved
2033 # Return 1 if the target plus current options supports a vector
2034 # promotion (unpacking) of chars (to shorts) and shorts (to ints), 0 otherwise.
2036 # This won't change for different subtargets so cache the result.
2038 proc check_effective_target_vect_unpack { } {
2039 global et_vect_unpack
2041 if [info exists et_vect_unpack_saved] {
2042 verbose "check_effective_target_vect_unpack: using cached result" 2
2044 set et_vect_unpack_saved 0
2045 if { [istarget powerpc*-*-*]
2046 || [istarget i?86-*-*]
2047 || [istarget x86_64-*-*] } {
2048 set et_vect_unpack_saved 1
2051 verbose "check_effective_target_vect_unpack: returning $et_vect_unpack_saved" 2
2052 return $et_vect_unpack_saved
2055 # Return 1 if the target plus current options does not support a vector
2056 # alignment mechanism, 0 otherwise.
2058 # This won't change for different subtargets so cache the result.
2060 proc check_effective_target_vect_no_align { } {
2061 global et_vect_no_align_saved
2063 if [info exists et_vect_no_align_saved] {
2064 verbose "check_effective_target_vect_no_align: using cached result" 2
2066 set et_vect_no_align_saved 0
2067 if { [istarget mipsisa64*-*-*]
2068 || [istarget sparc*-*-*]
2069 || [istarget ia64-*-*] } {
2070 set et_vect_no_align_saved 1
2073 verbose "check_effective_target_vect_no_align: returning $et_vect_no_align_saved" 2
2074 return $et_vect_no_align_saved
2077 # Return 1 if arrays are aligned to the vector alignment
2078 # boundary, 0 otherwise.
2080 # This won't change for different subtargets so cache the result.
2082 proc check_effective_target_vect_aligned_arrays { } {
2083 global et_vect_aligned_arrays
2085 if [info exists et_vect_aligned_arrays_saved] {
2086 verbose "check_effective_target_vect_aligned_arrays: using cached result" 2
2088 set et_vect_aligned_arrays_saved 0
2089 if { ([istarget x86_64-*-*]
2090 || [istarget i?86-*-*]) && [is-effective-target lp64] } {
2091 set et_vect_aligned_arrays_saved 1
2094 verbose "check_effective_target_vect_aligned_arrays: returning $et_vect_aligned_arrays_saved" 2
2095 return $et_vect_aligned_arrays_saved
2098 # Return 1 if types are naturally aligned (aligned to their type-size),
2101 # This won't change for different subtargets so cache the result.
2103 proc check_effective_target_natural_alignment { } {
2104 global et_natural_alignment
2106 if [info exists et_natural_alignment_saved] {
2107 verbose "check_effective_target_natural_alignment: using cached result" 2
2109 # FIXME: 32bit powerpc: guaranteed only if MASK_ALIGN_NATURAL/POWER.
2110 set et_natural_alignment_saved 1
2111 if { ([istarget *-*-darwin*] && [is-effective-target lp64]) } {
2112 set et_natural_alignment_saved 0
2115 verbose "check_effective_target_natural_alignment: returning $et_natural_alignment_saved" 2
2116 return $et_natural_alignment_saved
2119 # Return 1 if vector alignment is reachable, 0 otherwise.
2121 # This won't change for different subtargets so cache the result.
2123 proc check_effective_target_vector_alignment_reachable { } {
2124 global et_vector_alignment_reachable
2126 if [info exists et_vector_alignment_reachable_saved] {
2127 verbose "check_effective_target_vector_alignment_reachable: using cached result" 2
2129 if { [check_effective_target_vect_aligned_arrays]
2130 || [check_effective_target_natural_alignment] } {
2131 set et_vector_alignment_reachable_saved 1
2133 set et_vector_alignment_reachable_saved 0
2136 verbose "check_effective_target_vector_alignment_reachable: returning $et_vector_alignment_reachable_saved" 2
2137 return $et_vector_alignment_reachable_saved
2140 # Return 1 if vector alignment for soubles is reachable, 0 otherwise.
2142 # This won't change for different subtargets so cache the result.
2144 proc check_effective_target_vector_alignment_reachable_for_double { } {
2145 global et_vector_alignment_reachable_for_double
2147 if [info exists et_vector_alignment_reachable_for_double_saved] {
2148 verbose "check_effective_target_vector_alignment_reachable_for_double: using cached result" 2
2150 if { [check_effective_target_vect_aligned_arrays] } {
2151 set et_vector_alignment_reachable_for_double_saved 1
2153 set et_vector_alignment_reachable_for_double_saved 0
2156 verbose "check_effective_target_vector_alignment_reachable_for_double: returning $et_vector_alignment_reachable_for_double_saved" 2
2157 return $et_vector_alignment_reachable_for_double_saved
2160 # Return 1 if the target supports vector conditional operations, 0 otherwise.
2162 proc check_effective_target_vect_condition { } {
2163 global et_vect_cond_saved
2165 if [info exists et_vect_cond_saved] {
2166 verbose "check_effective_target_vect_cond: using cached result" 2
2168 set et_vect_cond_saved 0
2169 if { [istarget powerpc*-*-*]
2170 || [istarget ia64-*-*]
2171 || [istarget i?86-*-*]
2172 || [istarget spu-*-*]
2173 || [istarget x86_64-*-*] } {
2174 set et_vect_cond_saved 1
2178 verbose "check_effective_target_vect_cond: returning $et_vect_cond_saved" 2
2179 return $et_vect_cond_saved
2182 # Return 1 if the target supports vector char multiplication, 0 otherwise.
2184 proc check_effective_target_vect_char_mult { } {
2185 global et_vect_char_mult_saved
2187 if [info exists et_vect_char_mult_saved] {
2188 verbose "check_effective_target_vect_char_mult: using cached result" 2
2190 set et_vect_char_mult_saved 0
2191 if { [istarget ia64-*-*]
2192 || [istarget i?86-*-*]
2193 || [istarget x86_64-*-*] } {
2194 set et_vect_char_mult_saved 1
2198 verbose "check_effective_target_vect_char_mult: returning $et_vect_char_mult_saved" 2
2199 return $et_vect_char_mult_saved
2202 # Return 1 if the target supports vector short multiplication, 0 otherwise.
2204 proc check_effective_target_vect_short_mult { } {
2205 global et_vect_short_mult_saved
2207 if [info exists et_vect_short_mult_saved] {
2208 verbose "check_effective_target_vect_short_mult: using cached result" 2
2210 set et_vect_short_mult_saved 0
2211 if { [istarget ia64-*-*]
2212 || [istarget i?86-*-*]
2213 || [istarget x86_64-*-*] } {
2214 set et_vect_short_mult_saved 1
2218 verbose "check_effective_target_vect_short_mult: returning $et_vect_short_mult_saved" 2
2219 return $et_vect_short_mult_saved
2222 # Return 1 if the target supports vector int multiplication, 0 otherwise.
2224 proc check_effective_target_vect_int_mult { } {
2225 global et_vect_int_mult_saved
2227 if [info exists et_vect_int_mult_saved] {
2228 verbose "check_effective_target_vect_int_mult: using cached result" 2
2230 set et_vect_int_mult_saved 0
2231 if { [istarget powerpc*-*-*]
2232 || [istarget spu-*-*]
2233 || [istarget i?86-*-*]
2234 || [istarget x86_64-*-*] } {
2235 set et_vect_int_mult_saved 1
2239 verbose "check_effective_target_vect_int_mult: returning $et_vect_int_mult_saved" 2
2240 return $et_vect_int_mult_saved
2243 # Return 1 if the target supports vector even/odd elements extraction, 0 otherwise.
2245 proc check_effective_target_vect_extract_even_odd { } {
2246 global et_vect_extract_even_odd_saved
2248 if [info exists et_vect_extract_even_odd_saved] {
2249 verbose "check_effective_target_vect_extract_even_odd: using cached result" 2
2251 set et_vect_extract_even_odd_saved 0
2252 if { [istarget powerpc*-*-*] } {
2253 set et_vect_extract_even_odd_saved 1
2257 verbose "check_effective_target_vect_extract_even_odd: returning $et_vect_extract_even_odd_saved" 2
2258 return $et_vect_extract_even_odd_saved
2261 # Return 1 if the target supports vector interleaving, 0 otherwise.
2263 proc check_effective_target_vect_interleave { } {
2264 global et_vect_interleave_saved
2266 if [info exists et_vect_interleave_saved] {
2267 verbose "check_effective_target_vect_interleave: using cached result" 2
2269 set et_vect_interleave_saved 0
2270 if { [istarget powerpc*-*-*]
2271 || [istarget i?86-*-*]
2272 || [istarget x86_64-*-*] } {
2273 set et_vect_interleave_saved 1
2277 verbose "check_effective_target_vect_interleave: returning $et_vect_interleave_saved" 2
2278 return $et_vect_interleave_saved
2281 # Return 1 if the target supports vector interleaving and extract even/odd, 0 otherwise.
2282 proc check_effective_target_vect_strided { } {
2283 global et_vect_strided_saved
2285 if [info exists et_vect_strided_saved] {
2286 verbose "check_effective_target_vect_strided: using cached result" 2
2288 set et_vect_strided_saved 0
2289 if { [check_effective_target_vect_interleave]
2290 && [check_effective_target_vect_extract_even_odd] } {
2291 set et_vect_strided_saved 1
2295 verbose "check_effective_target_vect_strided: returning $et_vect_strided_saved" 2
2296 return $et_vect_strided_saved
2299 # Return 1 if the target supports section-anchors
2301 proc check_effective_target_section_anchors { } {
2302 global et_section_anchors_saved
2304 if [info exists et_section_anchors_saved] {
2305 verbose "check_effective_target_section_anchors: using cached result" 2
2307 set et_section_anchors_saved 0
2308 if { [istarget powerpc*-*-*] } {
2309 set et_section_anchors_saved 1
2313 verbose "check_effective_target_section_anchors: returning $et_section_anchors_saved" 2
2314 return $et_section_anchors_saved
2317 # Return 1 if the target supports atomic operations on "int" and "long".
2319 proc check_effective_target_sync_int_long { } {
2320 global et_sync_int_long_saved
2322 if [info exists et_sync_int_long_saved] {
2323 verbose "check_effective_target_sync_int_long: using cached result" 2
2325 set et_sync_int_long_saved 0
2326 # This is intentionally powerpc but not rs6000, rs6000 doesn't have the
2327 # load-reserved/store-conditional instructions.
2328 if { [istarget ia64-*-*]
2329 || [istarget i?86-*-*]
2330 || [istarget x86_64-*-*]
2331 || [istarget alpha*-*-*]
2332 || [istarget s390*-*-*]
2333 || [istarget powerpc*-*-*]
2334 || [istarget sparc64-*-*]
2335 || [istarget sparcv9-*-*] } {
2336 set et_sync_int_long_saved 1
2340 verbose "check_effective_target_sync_int_long: returning $et_sync_int_long_saved" 2
2341 return $et_sync_int_long_saved
2344 # Return 1 if the target supports atomic operations on "char" and "short".
2346 proc check_effective_target_sync_char_short { } {
2347 global et_sync_char_short_saved
2349 if [info exists et_sync_char_short_saved] {
2350 verbose "check_effective_target_sync_char_short: using cached result" 2
2352 set et_sync_char_short_saved 0
2353 # This is intentionally powerpc but not rs6000, rs6000 doesn't have the
2354 # load-reserved/store-conditional instructions.
2355 if { [istarget ia64-*-*]
2356 || [istarget i?86-*-*]
2357 || [istarget x86_64-*-*]
2358 || [istarget alpha*-*-*]
2359 || [istarget s390*-*-*]
2360 || [istarget powerpc*-*-*]
2361 || [istarget sparc64-*-*]
2362 || [istarget sparcv9-*-*] } {
2363 set et_sync_char_short_saved 1
2367 verbose "check_effective_target_sync_char_short: returning $et_sync_char_short_saved" 2
2368 return $et_sync_char_short_saved
2371 # Return 1 if the target uses a ColdFire FPU.
2373 proc check_effective_target_coldfire_fpu { } {
2374 return [check_no_compiler_messages coldfire_fpu assembly {
2381 # Return true if this is a uClibc target.
2383 proc check_effective_target_uclibc {} {
2384 return [check_no_compiler_messages uclibc object {
2385 #include <features.h>
2386 #if !defined (__UCLIBC__)
2392 # Return true if this is a uclibc target and if the uclibc feature
2393 # described by __$feature__ is not present.
2395 proc check_missing_uclibc_feature {feature} {
2396 return [check_no_compiler_messages $feature object "
2397 #include <features.h>
2398 #if !defined (__UCLIBC) || defined (__${feature}__)
2404 # Return true if this is a Newlib target.
2406 proc check_effective_target_newlib {} {
2407 return [check_no_compiler_messages newlib object {
2413 # (a) an error of a few ULP is expected in string to floating-point
2414 # conversion functions; and
2415 # (b) overflow is not always detected correctly by those functions.
2417 proc check_effective_target_lax_strtofp {} {
2418 # By default, assume that all uClibc targets suffer from this.
2419 return [check_effective_target_uclibc]
2422 # Return 1 if this is a target for which wcsftime is a dummy
2423 # function that always returns 0.
2425 proc check_effective_target_dummy_wcsftime {} {
2426 # By default, assume that all uClibc targets suffer from this.
2427 return [check_effective_target_uclibc]
2430 # Return 1 if constructors with initialization priority arguments are
2431 # supposed on this target.
2433 proc check_effective_target_init_priority {} {
2434 return [check_no_compiler_messages init_priority assembly "
2435 void f() __attribute__((constructor (1000)));
2440 # Return 1 if the target matches the effective target 'arg', 0 otherwise.
2441 # This can be used with any check_* proc that takes no argument and
2442 # returns only 1 or 0. It could be used with check_* procs that take
2443 # arguments with keywords that pass particular arguments.
2445 proc is-effective-target { arg } {
2447 if { [info procs check_effective_target_${arg}] != [list] } {
2448 set selected [check_effective_target_${arg}]
2451 "vmx_hw" { set selected [check_vmx_hw_available] }
2452 "named_sections" { set selected [check_named_sections_available] }
2453 "gc_sections" { set selected [check_gc_sections_available] }
2454 "cxa_atexit" { set selected [check_cxa_atexit_available] }
2455 default { error "unknown effective target keyword `$arg'" }
2458 verbose "is-effective-target: $arg $selected" 2
2462 # Return 1 if the argument is an effective-target keyword, 0 otherwise.
2464 proc is-effective-target-keyword { arg } {
2465 if { [info procs check_effective_target_${arg}] != [list] } {
2468 # These have different names for their check_* procs.
2470 "vmx_hw" { return 1 }
2471 "named_sections" { return 1 }
2472 "gc_sections" { return 1 }
2473 "cxa_atexit" { return 1 }
2474 default { return 0 }
2479 # Return 1 if target default to short enums
2481 proc check_effective_target_short_enums { } {
2482 return [check_no_compiler_messages short_enums assembly {
2484 int s[sizeof (enum foo) == 1 ? 1 : -1];
2488 # Return 1 if target supports merging string constants at link time.
2490 proc check_effective_target_string_merging { } {
2491 return [check_no_messages_and_pattern string_merging \
2492 "rodata\\.str" assembly {
2493 const char *var = "String";
2497 # Return 1 if target has the basic signed and unsigned types in
2498 # <stdint.h>, 0 otherwise.
2500 proc check_effective_target_stdint_types { } {
2501 return [check_no_compiler_messages stdint_types assembly {
2503 int8_t a; int16_t b; int32_t c; int64_t d;
2504 uint8_t e; uint16_t f; uint32_t g; uint64_t h;
2508 # Return 1 if programs are intended to be run on a simulator
2509 # (i.e. slowly) rather than hardware (i.e. fast).
2511 proc check_effective_target_simulator { } {
2513 # All "src/sim" simulators set this one.
2514 if [board_info target exists is_simulator] {
2515 return [board_info target is_simulator]
2518 # The "sid" simulators don't set that one, but at least they set
2520 if [board_info target exists slow_simulator] {
2521 return [board_info target slow_simulator]
2527 # Return 1 if the target is a VxWorks RTP.
2529 proc check_effective_target_vxworks_kernel { } {
2530 return [check_no_compiler_messages vxworks_kernel assembly {
2531 #if !defined __vxworks || defined __RTP__
2537 # Return 1 if the target is expected to provide wide character support.
2539 proc check_effective_target_wchar { } {
2540 if {[check_missing_uclibc_feature UCLIBC_HAS_WCHAR]} {
2543 return [check_no_compiler_messages wchar assembly {