From 18d6c45e12127ea88a704c0915de2ba13d3af998 Mon Sep 17 00:00:00 2001 From: Stefan Liebler Date: Fri, 7 Oct 2016 09:56:47 +0200 Subject: s390: Refactor ifunc resolvers due to false debuginfo. This patch adjusts the s390 specific ifunc helper macros in ifunc-resolve.h to use the common __ifunc macro, which uses gcc attribute ifunc to get rid of the false debuginfo. Therefore the redirection construct is applied where needed. Perhaps in future we can switch some of the internal symbols __GI_* from the fallback variant to the ifunc function. But this change is not straightforward due to a segmentation fault while linking libc.so with older binutils on s390. ChangeLog: [BZ #20478] * sysdeps/s390/multiarch/ifunc-resolve.h (s390_vx_libc_ifunc2, s390_libc_ifunc): Use __ifunc from libc-symbols.h to create ifunc symbols. (s390_vx_libc_ifunc_init, s390_vx_libc_ifunc_redirected , s390_vx_libc_ifunc2_redirected, s390_libc_ifunc_init): New define. * sysdeps/s390/multiarch/memchr.c: Redirect ifunced function in header for using it as type for ifunc function. * sysdeps/s390/multiarch/mempcpy.c: Likewise. * sysdeps/s390/multiarch/rawmemchr.c: Likewise. * sysdeps/s390/multiarch/stpcpy.c: Likewise. * sysdeps/s390/multiarch/stpncpy.c: Likewise. * sysdeps/s390/multiarch/strcat.c: Likewise. * sysdeps/s390/multiarch/strchr.c: Likewise. * sysdeps/s390/multiarch/strcmp.c: Likewise. * sysdeps/s390/multiarch/strcpy.c: Likewise. * sysdeps/s390/multiarch/strcspn.c: Likewise. * sysdeps/s390/multiarch/strlen.c: Likewise. * sysdeps/s390/multiarch/strncmp.c: Likewise. * sysdeps/s390/multiarch/strncpy.c: Likewise. * sysdeps/s390/multiarch/strnlen.c: Likewise. * sysdeps/s390/multiarch/strpbrk.c: Likewise. * sysdeps/s390/multiarch/strrchr.c: Likewise. * sysdeps/s390/multiarch/strspn.c: Likewise. * sysdeps/s390/multiarch/wcschr.c: Likewise. * sysdeps/s390/multiarch/wcscmp.c: Likewise. * sysdeps/s390/multiarch/wcspbrk.c: Likewise. * sysdeps/s390/multiarch/wcsspn.c: Likewise. * sysdeps/s390/multiarch/wmemchr.c: Likewise. * sysdeps/s390/multiarch/wmemset.c: Likewise. * sysdeps/s390/s390-32/multiarch/memcmp.c: Likewise. * sysdeps/s390/s390-32/multiarch/memcpy.c: Likewise. * sysdeps/s390/s390-32/multiarch/memset.c: Likewise. * sysdeps/s390/s390-64/multiarch/memcmp.c: Likewise. * sysdeps/s390/s390-64/multiarch/memcpy.c: Likewise. * sysdeps/s390/s390-64/multiarch/memset.c: Likewise. --- sysdeps/s390/multiarch/wmemset.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'sysdeps/s390/multiarch/wmemset.c') diff --git a/sysdeps/s390/multiarch/wmemset.c b/sysdeps/s390/multiarch/wmemset.c index e9e695fc0a..2fc57ee71d 100644 --- a/sysdeps/s390/multiarch/wmemset.c +++ b/sysdeps/s390/multiarch/wmemset.c @@ -17,12 +17,15 @@ . */ #if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) +# define wmemset __redirect_wmemset +# define __wmemset __redirect___wmemset # include +# undef wmemset +# undef __wmemset # include -s390_vx_libc_ifunc (__wmemset) +s390_vx_libc_ifunc_redirected (__redirect___wmemset, __wmemset) weak_alias (__wmemset, wmemset) -libc_hidden_weak (wmemset) #else # include -- cgit 1.4.1