diff options
Diffstat (limited to 'sysdeps/alpha/elf/configure.in')
| -rw-r--r-- | sysdeps/alpha/elf/configure.in | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/sysdeps/alpha/elf/configure.in b/sysdeps/alpha/elf/configure.in index 7548046f50..29daf4fc9c 100644 --- a/sysdeps/alpha/elf/configure.in +++ b/sysdeps/alpha/elf/configure.in @@ -51,3 +51,29 @@ if test $libc_cv_alpha_tls = yes; then AC_DEFINE(HAVE_TLS_SUPPORT) fi fi + +AC_CACHE_CHECK(for GP relative module local relocs, libc_cv_alpha_hidden_gprel, [dnl +cat > conftest.c <<\EOF +static int bar; +int baz __attribute__((visibility("hidden"))); + +int foo (void) +{ + return bar + baz; +} +EOF +dnl + +libc_cv_alpha_hidden_gprel=no +if AC_TRY_COMMAND(${CC-cc} -S $CFLAGS -O2 -fpic conftest.c 1>&AC_FD_CC); then + if grep -q 'bar.*!gprel' conftest.s \ + && grep -q 'baz.*!gprel' conftest.s \ + && ! grep -q 'bar.*!literal' conftest.s \ + && ! grep -q 'baz.*!literal' conftest.s; then + libc_cv_alpha_hidden_gprel=yes + fi +fi +rm -f conftest*]) +if test $libc_cv_alpha_hidden_gprel = yes; then + AC_DEFINE(PI_STATIC_AND_HIDDEN) +fi |