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| author | H.J. Lu <hjl.tools@gmail.com> | 2024-12-20 05:31:05 +0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2024-12-22 13:03:46 +0800 |
| commit | 494eb254c37507e836b5c791a3dbd8552777ddf7 (patch) | |
| tree | d475caa25ab979dca97c79600f1a3660c7f92240 /configure.ac | |
| parent | 56cdc529fb553a307be459df3f1be90d1a231f0a (diff) | |
| download | glibc-494eb254c37507e836b5c791a3dbd8552777ddf7.tar.xz glibc-494eb254c37507e836b5c791a3dbd8552777ddf7.zip | |
Add include/libc-misc.h
Add include/libc-misc.h to provide miscellaneous definitions for both
glibc build and test:
1. Move inhibit_stack_protector to libc-misc.h and add Clang support.
2. Add test_inhibit_stack_protector for glibc testing.
3. Move inhibit_loop_to_libcall to libc-misc.h.
4. Add test_cc_inhibit_loop_to_libcall to handle TEST_CC != CC and
replace inhibit_loop_to_libcall with test_cc_inhibit_loop_to_libcall
in glibc tests.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Co-Authored-By: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Sam James <sam@gentoo.org>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 43 |
1 files changed, 27 insertions, 16 deletions
diff --git a/configure.ac b/configure.ac index aa0ec5d7ff..8f75b319a3 100644 --- a/configure.ac +++ b/configure.ac @@ -665,11 +665,14 @@ LIBC_TRY_TEST_CXX_COMMAND([for clang++], ) LIBC_CONFIG_VAR([have-test-clangxx], [$libc_cv_test_clangxx]) -AC_CACHE_CHECK(for -fstack-protector, libc_cv_ssp, [dnl -LIBC_TRY_CC_OPTION([$CFLAGS $CPPFLAGS -Werror -fstack-protector], - [libc_cv_ssp=yes], - [libc_cv_ssp=no]) -]) +LIBC_TRY_CC_AND_TEST_CC_OPTION([for -fstack-protector], + [-Werror -fstack-protector], + libc_cv_ssp, + [libc_cv_ssp=yes], + [libc_cv_ssp=no], + libc_cv_test_ssp, + [libc_cv_test_ssp=yes], + [libc_cv_test_ssp=no]) AC_CACHE_CHECK(for -fstack-protector-strong, libc_cv_ssp_strong, [dnl LIBC_TRY_CC_OPTION([$CFLAGS $CPPFLAGS -Werror -fstack-protector-strong], @@ -689,6 +692,10 @@ if test "$libc_cv_ssp" = yes; then no_stack_protector="-fno-stack-protector -DSTACK_PROTECTOR_LEVEL=0" AC_DEFINE(HAVE_CC_NO_STACK_PROTECTOR) fi +if test "$libc_cv_test_ssp" = yes; then + AC_DEFINE(HAVE_TEST_CC_NO_STACK_PROTECTOR) +fi + if test "$enable_stack_protector" = yes && test "$libc_cv_ssp" = yes; then stack_protector="-fstack-protector" @@ -1506,22 +1513,26 @@ LIBC_TRY_TEST_CC_OPTION([for -ffloat-store], LIBC_CONFIG_VAR([test-config-cflags-float-store], [$libc_cv_test_cc_float_store]) -AC_CACHE_CHECK(if $CC accepts -fno-tree-loop-distribute-patterns with \ -__attribute__ ((__optimize__)), libc_cv_cc_loop_to_function, [dnl -cat > conftest.c <<EOF +conftest_code=" void -__attribute__ ((__optimize__ ("-fno-tree-loop-distribute-patterns"))) +__attribute__ ((__optimize__ (\"-fno-tree-loop-distribute-patterns\"))) foo (void) {} -EOF -libc_cv_cc_loop_to_function=no -if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -c conftest.c]) -then - libc_cv_cc_loop_to_function=yes -fi -rm -f conftest*]) +" +LIBC_TRY_CC_AND_TEST_CC_COMMAND([if __attribute__ ((__optimize__("-fno-tree-loop-distribute-patterns"))) works], + [$conftest_code], + [-c -Werror], + libc_cv_cc_loop_to_function, + [libc_cv_cc_loop_to_function=yes], + [libc_cv_cc_loop_to_function=no], + libc_cv_test_cc_loop_to_function, + [libc_cv_test_cc_loop_to_function=yes], + [libc_cv_test_cc_loop_to_function=no]) if test $libc_cv_cc_loop_to_function = yes; then AC_DEFINE(HAVE_CC_INHIBIT_LOOP_TO_LIBCALL) fi +if test $libc_cv_test_cc_loop_to_function = yes; then + AC_DEFINE(HAVE_TEST_CC_INHIBIT_LOOP_TO_LIBCALL) +fi AC_SUBST(libc_cv_cc_loop_to_function) LIBC_TRY_CC_AND_TEST_CC_OPTION([for -Wimplicit-fallthrough], |