[PATCH] elf/Makefile: Run IFUNC tests if binutils supports IFUNC

[Tulio Magno Quites Machado Filho]

"H.J. Lu" <hjl.tools@gmail.com> writes:

> 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.

We should also change this powerpc test:

diff --git a/sysdeps/powerpc/Makefile b/sysdeps/powerpc/Makefile
index bac5a3a73c..5c6ea0a95e 100644
--- a/sysdeps/powerpc/Makefile
+++ b/sysdeps/powerpc/Makefile
@@ -14,7 +14,7 @@ mod-tlsopt-powerpc.so-no-z-defs = yes
 tests += tst-tlsopt-powerpc
 $(objpfx)tst-tlsopt-powerpc: $(objpfx)mod-tlsopt-powerpc.so
 
-ifneq (no,$(multi-arch))
+ifeq (yes,$(have-ifunc))
 tests-static += tst-tlsifunc-static
 tests-internal += tst-tlsifunc-static
 ifeq (yes,$(build-shared))

Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>

-- 
Tulio Magno