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authorH.J. Lu <hjl.tools@gmail.com>2019-02-27 13:21:46 -0800
committerH.J. Lu <hjl.tools@gmail.com>2019-02-27 13:21:55 -0800
commit92ad88fe72194ccb72a5f34fa3c76078bfc89400 (patch)
tree0efb813db9d768886d738866816bc716bbb604aa /configure.ac
parent6bd4d02ee997f5b073583c5d8638ffdefedb13bc (diff)
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elf/Makefile: Run IFUNC tests if binutils supports IFUNC
We should run IFUNC tests with --disable-multi-arch if the toolchain supports IFUNCs. For correctness, --disable-multi-arch must not remove IFUNC support from the loader. Tested on x86-64, x32 and i686 with and without --disable-multi-arch. * configure.ac (have-ifunc): New LIBC_CONFIG_VAR. * configure: Regenerated. * elf/Makefile: Run IFUNC tests if binutils supports IFUNC. Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac1
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index ad50e290d4..598ba6c4ae 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1804,6 +1804,7 @@ AC_SUBST(libc_cv_gcc_unwind_find_fde)
if test x"$libc_cv_ld_gnu_indirect_function" = xyes; then
AC_DEFINE(HAVE_IFUNC)
fi
+LIBC_CONFIG_VAR([have-ifunc], [$libc_cv_ld_gnu_indirect_function])
if test x"$libc_cv_gcc_indirect_function" = xyes; then
AC_DEFINE(HAVE_GCC_IFUNC)