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| author | H.J. Lu <hjl.tools@gmail.com> | 2018-05-16 09:03:45 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2018-05-16 09:04:35 -0700 |
| commit | 04958880e04264da97873b4d41d9bc34567afaef (patch) | |
| tree | 3b9abfdf4628354305efcde9626fe38682bfbf3e /sysdeps/x86_64/multiarch | |
| parent | c9992d13c4160edd5449ee6c8f407663f2ac6dbd (diff) | |
| download | glibc-04958880e04264da97873b4d41d9bc34567afaef.tar.gz glibc-04958880e04264da97873b4d41d9bc34567afaef.tar.xz glibc-04958880e04264da97873b4d41d9bc34567afaef.zip | |
x86-64: Use IFUNC strncat inside libc.so
Unlike i386, we can call hidden IFUNC functions inside libc.so since x86-64 PLT is always PIC. Tested on x86-64. * sysdeps/x86_64/multiarch/strncat-c.c (STRNCAT_PRIMARY): Removed. Include <string/strncat.c>. * sysdeps/x86_64/multiarch/strncat.c (__strncat): New strong alias. (__GI___strncat): New hidden alias.
Diffstat (limited to 'sysdeps/x86_64/multiarch')
| -rw-r--r-- | sysdeps/x86_64/multiarch/strncat-c.c | 3 | ||||
| -rw-r--r-- | sysdeps/x86_64/multiarch/strncat.c | 5 |
2 files changed, 6 insertions, 2 deletions
diff --git a/sysdeps/x86_64/multiarch/strncat-c.c b/sysdeps/x86_64/multiarch/strncat-c.c index db8ad9917c..93a7fab7ea 100644 --- a/sysdeps/x86_64/multiarch/strncat-c.c +++ b/sysdeps/x86_64/multiarch/strncat-c.c @@ -1,3 +1,2 @@ #define STRNCAT __strncat_sse2 -#define STRNCAT_PRIMARY -#include "string/strncat.c" +#include <string/strncat.c> diff --git a/sysdeps/x86_64/multiarch/strncat.c b/sysdeps/x86_64/multiarch/strncat.c index 1267eb4972..841c165565 100644 --- a/sysdeps/x86_64/multiarch/strncat.c +++ b/sysdeps/x86_64/multiarch/strncat.c @@ -27,4 +27,9 @@ # include "ifunc-unaligned-ssse3.h" libc_ifunc_redirected (__redirect_strncat, strncat, IFUNC_SELECTOR ()); +strong_alias (strncat, __strncat); +# ifdef SHARED +__hidden_ver1 (strncat, __GI___strncat, __redirect_strncat) + __attribute__((visibility ("hidden"))); +# endif #endif |