diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/configure.in')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/configure.in | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/configure.in b/sysdeps/powerpc/powerpc64/configure.in index 67aac663d8..9c236adbc4 100644 --- a/sysdeps/powerpc/powerpc64/configure.in +++ b/sysdeps/powerpc/powerpc64/configure.in @@ -40,3 +40,22 @@ rm -f conftest.c conftest.s if test x$libc_cv_overlapping_opd = xyes; then AC_DEFINE(USE_PPC64_OVERLAPPING_OPD) fi + +# Some compilers have been configured to emit PT_GNU_STACK on PowerPC64 even +# though this isn't necessary. If it is present then which check-execstack is +# tested should be changed. +AC_CACHE_CHECK(if PT_GNU_STACK ELF program header is emitted by the compiler on PowerPC64, libc_cv_ppc64_pt_gnu_stack, [dnl +echo 'int main (void) { return 0; }' > conftest.c +libc_cv_ppc64_pt_gnu_stack=no + if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -o conftest + conftest.c 1>&AS_MESSAGE_LOG_FD]) + then + if readelf -l conftest | fgrep GNU_STACK > /dev/null; then + libc_cv_ppc64_pt_gnu_stack=yes + fi + fi + rm -f conftest*]) +#AC_SUBST(libc_cv_ppc64_pt_gnu_stack) +if test $libc_cv_ppc64_pt_gnu_stack = yes; then + AC_DEFINE(HAVE_PPC64_PT_GNU_STACK) +fi |