[v4,1/2] x86: Add missing IS_IN (libc) check to strncmp-sse4_2.S
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Commit Message
Was missing to for the multiarch build rtld-strncmp-sse4_2.os was
being built and exporting symbols:
build/glibc/string/rtld-strncmp-sse4_2.os:
0000000000000000 T __strncmp_sse42
Introduced in:
commit 11ffcacb64a939c10cfc713746b8ec88837f5c4a
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Wed Jun 21 12:10:50 2017 -0700
x86-64: Implement strcmp family IFUNC selectors in C
---
sysdeps/x86_64/multiarch/strncmp-sse4_2.S | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
Comments
On Wed, Jun 29, 2022 at 8:08 PM Noah Goldstein <goldstein.w.n@gmail.com> wrote:
>
> Was missing to for the multiarch build rtld-strncmp-sse4_2.os was
> being built and exporting symbols:
>
> build/glibc/string/rtld-strncmp-sse4_2.os:
> 0000000000000000 T __strncmp_sse42
>
> Introduced in:
>
> commit 11ffcacb64a939c10cfc713746b8ec88837f5c4a
> Author: H.J. Lu <hjl.tools@gmail.com>
> Date: Wed Jun 21 12:10:50 2017 -0700
>
> x86-64: Implement strcmp family IFUNC selectors in C
> ---
> sysdeps/x86_64/multiarch/strncmp-sse4_2.S | 8 +++++---
> 1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/sysdeps/x86_64/multiarch/strncmp-sse4_2.S b/sysdeps/x86_64/multiarch/strncmp-sse4_2.S
> index 9773e5fc09..310a6dbe77 100644
> --- a/sysdeps/x86_64/multiarch/strncmp-sse4_2.S
> +++ b/sysdeps/x86_64/multiarch/strncmp-sse4_2.S
> @@ -16,6 +16,8 @@
> License along with the GNU C Library; if not, see
> <https://www.gnu.org/licenses/>. */
>
> -#define STRCMP_SSE42 __strncmp_sse42
> -#define USE_AS_STRNCMP
> -#include "strcmp-sse42.S"
> +#if IS_IN (libc)
> +# define STRCMP_SSE42 __strncmp_sse42
> +# define USE_AS_STRNCMP
> +# include "strcmp-sse42.S"
> +#endif
> --
> 2.34.1
>
Ignore this patch
@@ -16,6 +16,8 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#define STRCMP_SSE42 __strncmp_sse42
-#define USE_AS_STRNCMP
-#include "strcmp-sse42.S"
+#if IS_IN (libc)
+# define STRCMP_SSE42 __strncmp_sse42
+# define USE_AS_STRNCMP
+# include "strcmp-sse42.S"
+#endif