breeze/glibc
1
0
Fork 0
mirror of https://mirrors.tuna.tsinghua.edu.cn/git/glibc.git synced 2026-01-12 00:20:19 +08:00
Code Issues Packages Projects Releases Wiki Activity

Enable execstack tests only if compiler supports trampoline

Browse Source 
Since trampoline is required to test execstack, enable execstack tests
only if compiler supports trampoline.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Sam James <sam@gentoo.org>
This commit is contained in:
H.J. Lu
2024-12-16 19:20:54 +08:00
parent f5fb9fa011
commit d9d30f6cb5
4 changed files with 80 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
configure.ac
View File

@@ -1527,6 +1527,28 @@ LIBC_CONFIG_VAR([cc-option-wimplicit-fallthrough],
[$libc_cv_cc_wimplicit_fallthrough])
AC_SUBST(libc_cv_test_cc_wimplicit_fallthrough)
conftest_code="
void bar (void (*callback) (void));
int foo (void)
{
int var = 0;
void callback (void) { var = 1; }
bar (callback);
return var;
}
"
dnl Check if TEST_CC support trampolines.
LIBC_TRY_TEST_CC_COMMAND([support for trampolines],
[$conftest_code],
[-c -Werror],
libc_cv_test_cc_trampolines,
[libc_cv_test_cc_trampolines=yes],
[libc_cv_test_cc_trampolines=no]
)
LIBC_CONFIG_VAR([have-test-cc-trampoline],
[$libc_cv_test_cc_trampolines])
dnl Check if TEST_CC supports -finput-charset=ascii.
LIBC_TRY_TEST_CC_OPTION([-finput-charset=ascii],
[-c -Werror -finput-charset=ascii],