diff options
Diffstat (limited to 'sysdeps/x86_64/configure.ac')
| -rw-r--r-- | sysdeps/x86_64/configure.ac | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/sysdeps/x86_64/configure.ac b/sysdeps/x86_64/configure.ac index fa86e953ee..b7d2c0124f 100644 --- a/sysdeps/x86_64/configure.ac +++ b/sysdeps/x86_64/configure.ac @@ -44,6 +44,31 @@ if test x"$build_mathvec" = xnotset; then build_mathvec=yes fi +dnl Check if linker supports static PIE with the fix for +dnl +dnl https://sourceware.org/bugzilla/show_bug.cgi?id=21782 +dnl +if test "$static_pie" = yes; then + AC_CACHE_CHECK(for linker static PIE support, libc_cv_ld_static_pie, [dnl +cat > conftest.s <<\EOF + .text + .global _start + .weak foo +_start: + leaq foo(%rip), %rax +EOF + libc_cv_pie_option="-Wl,-pie" + if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -nostartfiles -nostdlib $no_ssp $libc_cv_pie_option -o conftest conftest.s 1>&AS_MESSAGE_LOG_FD); then + libc_cv_ld_static_pie=yes + else + libc_cv_ld_static_pie=no + fi +rm -f conftest*]) + if test "$libc_cv_ld_static_pie" != yes; then + AC_MSG_ERROR([linker support for static PIE needed]) + fi +fi + dnl It is always possible to access static and hidden symbols in an dnl position independent way. AC_DEFINE(PI_STATIC_AND_HIDDEN) |