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Use better test for usable compiler in ld testsuite.

Browse Source 
The ld testsuite includes numerous tests that depend on being able to
compile and link programs with the C compiler.  Some of these tests
use [which $CC] to check for the presence of the compiler before
proceeding with the test, but run_ld_link_exec_tests and run_cc_link_tests
give ERRORs if compilation fails.  Also, even if $CC is defined and present,
it may not be usable due to missing libraries, etc.

This patch adds a new procedure check_compiler_available that attempts
to build an empty program and caches the result.  Uses of [which $CC]
are replaced with calls to this procedure, and run_ld_link_exec_tests
and run_cc_link_tests now also guard attempts to use $CC.

2019-04-24  Sandra Loosemore  <sandra@codesourcery.com>

	ld/
	* testsuite/config/default.exp: Use [check_compiler_available]
	instead of [which $CC].
	* testsuite/ld-auto-import/auto-import.exp: Likewise.
	* testsuite/ld-cygwin/exe-export.exp: Likewise.
	* testsuite/ld-elf/audit.exp: Likewise.
	* testsuite/ld-elf/compress.exp: Likewise.
	* testsuite/ld-elf/dwarf.exp: Likewise.
	* testsuite/ld-elf/elf.exp: Likewise.
	* testsuite/ld-elf/indirect.exp: Likewise.
	* testsuite/ld-elf/linux-x86.exp: Likewise.
	* testsuite/ld-elf/shared.exp: Likewise.
	* testsuite/ld-elf/tls.exp: Likewise.
	* testsuite/ld-elf/wrap.exp: Likewise.
	* testsuite/ld-elfcomm/elfcomm.exp: Likewise.
	* testsuite/ld-elfvers/vers.exp: Likewise.
	* testsuite/ld-elfvsb/elfvsb.exp: Likewise.
	* testsuite/ld-elfweak/elfweak.exp: Likewise.
	* testsuite/ld-gc/gc.exp: Likewise.
	* testsuite/ld-i386/i386.exp: Likewise.
	* testsuite/ld-i386/no-plt.exp: Likewise.
	* testsuite/ld-i386/tls.exp: Likewise.
	* testsuite/ld-ifunc/ifunc.exp: Likewise.
	* testsuite/ld-mn10300/mn10300.exp: Likewise.
	* testsuite/ld-pe/pe-compile.exp: Likewise.
	* testsuite/ld-pe/pe-run.exp: Likewise.
	* testsuite/ld-pe/pe-run2.exp: Likewise.
	* testsuite/ld-pie/pie.exp: Likewise.
	* testsuite/ld-plugin/lto.exp: Likewise.
	* testsuite/ld-plugin/plugin.exp: Likewise.
	* testsuite/ld-scripts/crossref.exp: Likewise.
	* testsuite/ld-sh/sh.exp: Likewise.
	* testsuite/ld-shared/shared.exp: Likewise.
	* testsuite/ld-size/size.exp: Likewise.
	* testsuite/ld-srec/srec.exp: Likewise.
	* testsuite/ld-undefined/undefined.exp: Likewise.
	* testsuite/ld-unique/unique.exp: Likewise.
	* testsuite/ld-x86-64/mpx.exp: Likewise.
	* testsuite/ld-x86-64/no-plt.exp: Likewise.
	* testsuite/ld-x86-64/tls.exp: Likewise.
	* testsuite/ld-x86-64/x86-64.exp: Likewise.
	* testsuite/lib/ld-lib.exp (run_ld_link_exec_tests): Call
	check_compiler_available before trying to use the compiler.
	(run_cc_link_tests): Likewise.
	(check_compiler_available): New.  Use it instead of [which $CC].
This commit is contained in:
Sandra Loosemore 2019-04-24 12:14:56 -07:00
parent 596179f77c
commit 44ed80923a
41 changed files with 155 additions and 55 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
ld/ChangeLog
View File

@ -1,3 +1,50 @@
2019-04-24 Sandra Loosemore <sandra@codesourcery.com>
* testsuite/config/default.exp: Use [check_compiler_available]
instead of [which $CC].
* testsuite/ld-auto-import/auto-import.exp: Likewise.
* testsuite/ld-cygwin/exe-export.exp: Likewise.
* testsuite/ld-elf/audit.exp: Likewise.
* testsuite/ld-elf/compress.exp: Likewise.
* testsuite/ld-elf/dwarf.exp: Likewise.
* testsuite/ld-elf/elf.exp: Likewise.
* testsuite/ld-elf/indirect.exp: Likewise.
* testsuite/ld-elf/linux-x86.exp: Likewise.
* testsuite/ld-elf/shared.exp: Likewise.
* testsuite/ld-elf/tls.exp: Likewise.
* testsuite/ld-elf/wrap.exp: Likewise.
* testsuite/ld-elfcomm/elfcomm.exp: Likewise.
* testsuite/ld-elfvers/vers.exp: Likewise.
* testsuite/ld-elfvsb/elfvsb.exp: Likewise.
* testsuite/ld-elfweak/elfweak.exp: Likewise.
* testsuite/ld-gc/gc.exp: Likewise.
* testsuite/ld-i386/i386.exp: Likewise.
* testsuite/ld-i386/no-plt.exp: Likewise.
* testsuite/ld-i386/tls.exp: Likewise.
* testsuite/ld-ifunc/ifunc.exp: Likewise.
* testsuite/ld-mn10300/mn10300.exp: Likewise.
* testsuite/ld-pe/pe-compile.exp: Likewise.
* testsuite/ld-pe/pe-run.exp: Likewise.
* testsuite/ld-pe/pe-run2.exp: Likewise.
* testsuite/ld-pie/pie.exp: Likewise.
* testsuite/ld-plugin/lto.exp: Likewise.
* testsuite/ld-plugin/plugin.exp: Likewise.
* testsuite/ld-scripts/crossref.exp: Likewise.
* testsuite/ld-sh/sh.exp: Likewise.
* testsuite/ld-shared/shared.exp: Likewise.
* testsuite/ld-size/size.exp: Likewise.
* testsuite/ld-srec/srec.exp: Likewise.
* testsuite/ld-undefined/undefined.exp: Likewise.
* testsuite/ld-unique/unique.exp: Likewise.
* testsuite/ld-x86-64/mpx.exp: Likewise.
* testsuite/ld-x86-64/no-plt.exp: Likewise.
* testsuite/ld-x86-64/tls.exp: Likewise.
* testsuite/ld-x86-64/x86-64.exp: Likewise.
* testsuite/lib/ld-lib.exp (run_ld_link_exec_tests): Call
check_compiler_available before trying to use the compiler.
(run_cc_link_tests): Likewise.
(check_compiler_available): New. Use it instead of [which $CC].
2019-04-23 Alan Modra <amodra@gmail.com>
* Makefile.am (GENDEPDIR): New var, used..

12
ld/testsuite/config/default.exp
View File

@ -269,7 +269,7 @@ if { ![info exists LD_CLASS] } then {
# Set PLT_CFLAGS to "-fplt" if target compiler supports it.
if { ![info exists PLT_CFLAGS] } then {
if { [which $CC] != 0 } {
if { [check_compiler_available] } {
# Check if gcc supports -fplt
set flags ""
if [board_info [target_info name] exists cflags] {
@ -307,7 +307,7 @@ if { ![info exists PLT_CFLAGS] } then {
# target compiler supports them.
if { ![info exists NOPIE_CFLAGS] || ![info exists NOPIE_LDFLAGS] } then {
if { [which $CC] != 0 } {
if { [check_compiler_available] } {
# Check if gcc supports -fno-PIE -no-pie.
set flags ""
if [board_info [target_info name] exists cflags] {
@ -347,7 +347,7 @@ if { ![info exists NOPIE_CFLAGS] || ![info exists NOPIE_LDFLAGS] } then {
# Set GNU2_CFLAGS to "-mtls-dialect=gnu2" if target compiler supports it.
if { ![info exists GNU2_CFLAGS] } then {
if { [which $CC] != 0 } {
if { [check_compiler_available] } {
# Check if gcc supports -mtls-dialect=gnu2
set flags ""
if [board_info [target_info name] exists cflags] {
@ -384,7 +384,7 @@ if { ![info exists GNU2_CFLAGS] } then {
# Set INT128_CFLAGS to "-DHAS_INT128" if target compiler supports __int128.
if { ![info exists INT128_CFLAGS] } then {
if { [which $CC] != 0 } {
if { [check_compiler_available] } {
# Check if gcc supports __int128.
set flags ""
if [board_info [target_info name] exists cflags] {
@ -421,7 +421,7 @@ if { ![info exists INT128_CFLAGS] } then {
# Set STATIC_LDFLAGS to "-static" if target compiler supports it.
if { ![info exists STATIC_LDFLAGS] } then {
if { [which $CC] != 0 } {
if { [check_compiler_available] } {
# Check if gcc supports -static.
set flags ""
if [board_info [target_info name] exists cflags] {
@ -458,7 +458,7 @@ if { ![info exists STATIC_LDFLAGS] } then {
# Set STATIC_PIE_LDFLAGS to "-static-pie" if target compiler supports it.
if { ![info exists STATIC_PIE_LDFLAGS] } then {
if { [which $CC] != 0 } {
if { [check_compiler_available] } {
# Check if gcc supports -static-pie.
set flags ""
if [board_info [target_info name] exists cflags] {

2
ld/testsuite/ld-auto-import/auto-import.exp
View File

@ -67,7 +67,7 @@ if [istarget *-pc-mingw*] {
}
# No compiler, no test.
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
untested "Auto import test (compiler not found)"
return
}

2
ld/testsuite/ld-cygwin/exe-export.exp
View File

@ -29,7 +29,7 @@ if {![istarget *-pc-cygwin]} {
}
# No compiler, no test.
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
untested "Exe export test (no compiler available)"
return
}

2
ld/testsuite/ld-elf/audit.exp
View File

@ -32,7 +32,7 @@ if ![check_shared_lib_support] {
}
# Check if compiler works
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

2
ld/testsuite/ld-elf/compress.exp
View File

@ -32,7 +32,7 @@ if ![check_shared_lib_support] {
}
# Check if compiler works
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

2
ld/testsuite/ld-elf/dwarf.exp
View File

@ -36,7 +36,7 @@ if ![check_shared_lib_support] {
}
# Check if compiler works
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

2
ld/testsuite/ld-elf/elf.exp
View File

@ -182,7 +182,7 @@ set LDFLAGS $old_ldflags
set ASFLAGS $old_asflags
# Check to see if the C compiler works
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

2
ld/testsuite/ld-elf/indirect.exp
View File

@ -33,7 +33,7 @@ if ![check_shared_lib_support] {
}
# Check if compiler works
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

2
ld/testsuite/ld-elf/linux-x86.exp
View File

@ -20,7 +20,7 @@
#
# Test very simple native Linux/x86 programs with linux-x86.S.
if { ![isnative] || [which $CC] == 0 \
if { ![isnative] || ![check_compiler_available] \
|| (![istarget "i?86-*-linux*"] \
&& ![istarget "x86_64-*-linux*"] \
&& ![istarget "amd64-*-linux*"]) } {

2
ld/testsuite/ld-elf/shared.exp
View File

@ -498,7 +498,7 @@ if { [istarget *-*-linux*]
}
# Check to see if the C compiler works
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

2
ld/testsuite/ld-elf/tls.exp
View File

@ -29,7 +29,7 @@ if { ![istarget *-*-linux*]
}
# Check to see if the C compiler works.
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

2
ld/testsuite/ld-elf/wrap.exp
View File

@ -32,7 +32,7 @@ if ![check_shared_lib_support] {
}
# Check if compiler works
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

2
ld/testsuite/ld-elfcomm/elfcomm.exp
View File

@ -107,7 +107,7 @@ set test1w2 "$test1 (warning 2)"
set test1c1 "$test1 (change 1)"
set test1c2 "$test1 (change 2)"
if { ![is_remote host] && [which $CC] == 0 } {
if { ![check_compiler_available] } {
untested $test1w1
untested $test1w2
untested $test1c1

2
ld/testsuite/ld-elfvers/vers.exp
View File

@ -23,7 +23,7 @@
#
# Check to see if the C compiler works
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

2
ld/testsuite/ld-elfvsb/elfvsb.exp
View File

@ -25,7 +25,7 @@
# Make sure that ld can generate ELF shared libraries with visibility.
# Check to see if the C compiler works
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

2
ld/testsuite/ld-elfweak/elfweak.exp
View File

@ -23,7 +23,7 @@
#
# Check to see if the C compiler works
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

12
ld/testsuite/ld-gc/gc.exp
View File

@ -39,7 +39,7 @@ if { [istarget m681*-*-*] || [istarget m68hc1*-*-*] } {
set cflags "$cflags -fomit-frame-pointer -mshort"
}
if { [is_remote host] || [which $CC] != 0 } {
if { [check_compiler_available] } {
ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/gc.c $objfile
}
@ -130,7 +130,7 @@ if { [is_elf_format] && [check_shared_lib_support] } then {
set LDFLAGS $old_ldflags
}
if { [is_remote host] || [which $CC] != 0 } {
if { [check_compiler_available] } {
if { [istarget "*-*-linux*"]
|| [istarget "*-*-nacl*"]
|| [istarget "*-*-gnu*"] } {
@ -141,24 +141,24 @@ if { [is_remote host] || [which $CC] != 0 } {
}
}
if { [is_remote host] || [which $CC] != 0 } {
if { [check_compiler_available] } {
ld_compile "$CC $CFLAGS $cflags" $srcdir/$subdir/pr13683.c tmpdir/pr13683.o
run_dump_test "pr13683"
}
if { [is_remote host] || [which $CC] != 0 } {
if { [check_compiler_available] } {
ld_compile "$CC $CFLAGS $cflags $NOPIE_CFLAGS" $srcdir/$subdir/pr14265.c tmpdir/pr14265.o
run_dump_test "pr14265"
}
if { [is_remote host] || [which $CC] != 0 } {
if { [check_compiler_available] } {
ld_compile "$CC $CFLAGS $cflags -O0" $srcdir/$subdir/pr19161-1.c tmpdir/pr19161-1.o
ld_compile "$CC $CFLAGS $cflags -O0" $srcdir/$subdir/pr19161-2.c tmpdir/pr19161-2.o
run_dump_test "pr19161"
}
if { [is_elf_format] && [check_shared_lib_support] \
&& ([is_remote host] || [which $CC] != 0) } {
&& [check_compiler_available] } {
run_cc_link_tests [list \
[list \
"Build libpr20306.so" \

6
ld/testsuite/ld-i386/i386.exp
View File

@ -581,7 +581,7 @@ global PLT_CFLAGS
# Must be Linux native with the C compiler
if { [isnative]
&& [istarget "i?86-*-linux*"]
&& [which $CC] != 0 } {
&& [check_compiler_available] } {
run_cc_link_tests [list \
[list \
"Build plt-lib.so" \
@ -1193,7 +1193,7 @@ global NOPIE_CFLAGS NOPIE_LDFLAGS
if { [isnative]
&& [check_ifunc_available]
&& [istarget "i?86-*-*"]
&& [which $CC] != 0 } {
&& [check_compiler_available] } {
run_cc_link_tests [list \
[list \
"Build ifunc-1a.o ifunc-1b.o ifunc-1c.o ifunc-1d.o" \
@ -1310,7 +1310,7 @@ if { [isnative]
# Must be native with the C compiler.
if { [isnative]
&& [istarget "i?86-*-*"]
&& [which $CC] != 0 } {
&& [check_compiler_available] } {
run_cc_link_tests [list \
[list \
"Build pr22001-1.so" \

2
ld/testsuite/ld-i386/no-plt.exp
View File

@ -35,7 +35,7 @@ if ![istarget "i?86-*-*"] {
}
# Check to see if the C compiler works
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

2
ld/testsuite/ld-i386/tls.exp
View File

@ -32,7 +32,7 @@ if ![istarget "i?86-*-linux*"] {
}
# Check to see if the C compiler works
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

2
ld/testsuite/ld-ifunc/ifunc.exp
View File

@ -63,7 +63,7 @@ foreach t $test_list {
# We need a working compiler. (Strictly speaking this is
# not true, we could use target specific assembler files).
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
verbose "IFUNC tests not run - no compiler available"
return
}

2
ld/testsuite/ld-mn10300/mn10300.exp
View File

@ -134,7 +134,7 @@ proc i126256-test { } {
set tmpdir tmpdir
set testname "Seg fault whilst linking one shared library into another when relaxation is enabled."
if {![is_remote host] && [which $CC] == 0} then {
if { ![check_compiler_available] } then {
return
}

2
ld/testsuite/ld-pe/pe-compile.exp
View File

@ -26,7 +26,7 @@ if {![is_pecoff_format]} {
}
# No compiler, no test.
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
untested "PE version scripts"
untested "aligned common tests"
# Add more "untested" directives here when adding more tests below.

2
ld/testsuite/ld-pe/pe-run.exp
View File

@ -54,7 +54,7 @@ if {![is_pecoff_format]} {
}
# No compiler, no test.
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
untested "Direct linking to dll test"
return
}

2
ld/testsuite/ld-pe/pe-run2.exp
View File

@ -56,7 +56,7 @@ if {![is_pecoff_format]} {
}
# No compiler, no test.
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
untested "Direct linking to dll fastcall/stdcall test"
return
}

2
ld/testsuite/ld-pie/pie.exp
View File

@ -26,7 +26,7 @@ if { ![istarget *-*-linux*]
}
# Check to see if the C compiler works
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

2
ld/testsuite/ld-plugin/lto.exp
View File

@ -19,7 +19,7 @@
# MA 02110-1301, USA.
# Check to see if the C and C++ compilers work
if { [which $CC] == 0 || [which $CXX] == 0 } {
if { ![check_compiler_available] || [which $CXX] == 0 } {
return
}

2
ld/testsuite/ld-plugin/plugin.exp
View File

@ -26,7 +26,7 @@ if ![check_plugin_api_available] {
# And a compiler to be available.
set can_compile 1
set failure_kind "unresolved"
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
# Don't fail immediately,
set can_compile 0
set failure_kind "unsupported"

2
ld/testsuite/ld-scripts/crossref.exp
View File

@ -27,7 +27,7 @@ set test5 "NOCROSSREFS_TO 2"
set test6 "NOCROSSREFS_TO 3"
set test7 "NOCROSSREFS_TO 4"
if { ![is_remote host] && [which $CC] == 0 } {
if { ![check_compiler_available] } {
untested $test1
untested $test2
untested $test3

2
ld/testsuite/ld-sh/sh.exp
View File

@ -129,7 +129,7 @@ set testlink "SH relaxing"
set testjsr "SH confirm relaxing"
set testrun "SH relaxing execution"
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
untested $testlink
untested $testjsr
untested $testrun

2
ld/testsuite/ld-shared/shared.exp
View File

@ -26,7 +26,7 @@
# bootstrap test.
# Check to see if the C compiler works
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

2
ld/testsuite/ld-size/size.exp
View File

@ -48,7 +48,7 @@ foreach t $test_list {
}
# We need a working compiler.
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
verbose "Native size relocation tests not run - no compiler available"
return
}

2
ld/testsuite/ld-srec/srec.exp
View File

@ -342,7 +342,7 @@ set sizeof_headers [string match "*SIZEOF_HEADERS*" $exec_output]
# directly to the S-record format, and require that the two files
# contain the same data.
if { ![is_remote host] && [which $CC] == 0 } {
if { ![check_compiler_available] } {
untested $test1
untested $test2
return

2
ld/testsuite/ld-undefined/undefined.exp
View File

@ -24,7 +24,7 @@ set testund "undefined"
set testfn "undefined function"
set testline "undefined line"
if { ![is_remote host] && [which $CC] == 0 } {
if { ![check_compiler_available] } {
verbose "Could not find C compiler!" 1
untested $testund
untested $testfn

2
ld/testsuite/ld-unique/unique.exp
View File

@ -44,7 +44,7 @@ foreach t $test_list {
# We need a working compiler. (Strictly speaking this is
# not true, we could use target specific assembler files).
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
verbose "UNIQUE compiled tests not run - no compiler available"
return
}

2
ld/testsuite/ld-x86-64/mpx.exp
View File

@ -32,7 +32,7 @@ if ![istarget "x86_64-*-linux*"] {
}
# Check to see if the C compiler works
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

2
ld/testsuite/ld-x86-64/no-plt.exp
View File

@ -35,7 +35,7 @@ if ![istarget "x86_64-*-*"] {
}
# Check to see if the C compiler works
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

2
ld/testsuite/ld-x86-64/tls.exp
View File

@ -32,7 +32,7 @@ if ![istarget "x86_64-*-linux*"] {
}
# Check to see if the C compiler works
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
return
}

2
ld/testsuite/ld-x86-64/x86-64.exp
View File

@ -731,7 +731,7 @@ global PLT_CFLAGS
global NOPIE_CFLAGS NOPIE_LDFLAGS
# Must be native with the C compiler
if { [isnative] && [which $CC] != 0 } {
if { [isnative] && [check_compiler_available] } {
run_cc_link_tests {
{"Helper X32 DSO from x86-64 object" "" "-m64 -fPIC -g"
{simple.c} {} "libsimple.a"}

61
ld/testsuite/lib/ld-lib.exp
View File

@ -688,6 +688,11 @@ proc run_ld_link_exec_tests { ldtests args } {
set objfiles {}
set failed 0
if { ![check_compiler_available] } {
unsupported $testname
continue
}
# verbose -log "Testname is $testname"
# verbose -log "ld_options is $ld_options"
# verbose -log "as_options is $as_options"
@ -840,6 +845,11 @@ proc run_cc_link_tests { ldtests } {
set check_ld(terminal) 0
set check_ld(source) ""
if { ![check_compiler_available] } {
unsupported $testname
continue
}
#verbose -log "testname is $testname"
#verbose -log "ldflags is $ldflags"
#verbose -log "cflags is $cflags"
@ -1140,6 +1150,49 @@ proc check_sysroot_available { } {
return $ld_sysroot_available_saved
}
# Return true if we can build a program with the compiler.
# On some targets, CC might be defined, but libraries and startup
# code might be missing or require special options that the ld test
# harness doesn't know about.
proc check_compiler_available { } {
global compiler_available_saved
global CC
if {![info exists compiler_available_saved]} {
if { [which $CC] == 0 } {
set compiler_available_saved 0
return 0
}
set flags ""
if [board_info [target_info name] exists cflags] {
append flags " [board_info [target_info name] cflags]"
}
if [board_info [target_info name] exists ldflags] {
append flags " [board_info [target_info name] ldflags]"
}
set basename "tmpdir/compiler[pid]"
set src ${basename}.c
set output ${basename}.out
set f [open $src "w"]
puts $f "int main (void)"
puts $f "{"
puts $f " return 0; "
puts $f "}"
close $f
if [is_remote host] {
set src [remote_download host $src]
}
set compiler_available_saved [run_host_cmd_yesno "$CC" "$flags $src -o $output"]
remote_file host delete $src
remote_file host delete $output
file delete $src
}
return $compiler_available_saved
}
# Returns 1 if plugin is enabled in gcc. Returns 0 otherwise.
proc check_gcc_plugin_enabled { } {
global CC
@ -1327,7 +1380,7 @@ proc check_ifunc_available { } {
global CC
if {![info exists ifunc_available_saved]} {
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
set ifunc_available_saved 0
return 0
}
@ -1376,7 +1429,7 @@ proc check_ifunc_attribute_available { } {
global CC
if {![info exists ifunc_attribute_available_saved]} {
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
set ifunc_attribute_available_saved 0
return 0
}
@ -1423,7 +1476,7 @@ proc check_libdl_available { } {
global CC
if {![info exists libdl_available_saved]} {
if { [which $CC] == 0 } {
if { ![check_compiler_available] } {
set libdl_available_saved 0
return 0
}
@ -1459,7 +1512,7 @@ proc check_gnu2_tls_available { } {
global GNU2_CFLAGS
if {![info exists gnu2_tls_available_saved]} {
if { [which $CC] == 0 || "$GNU2_CFLAGS" == "" } {
if { ![check_compiler_available] || "$GNU2_CFLAGS" == "" } {
set gnu2_tls_available_saved 0
return 0
}