From: "H.J. Lu" <hjl.tools@gmail.com>
To: Noah Goldstein <goldstein.w.n@gmail.com>
Cc: GNU C Library <libc-alpha@sourceware.org>,
"Carlos O'Donell" <carlos@systemhalted.org>
Subject: Re: [PATCH v1] x86: Add missing IS_IN (libc) check to strncmp-sse4_2.S
Date: Wed, 29 Jun 2022 19:03:39 -0700 [thread overview]
Message-ID: <CAMe9rOoeR07_eGCwi0wgeYM-bfv7tuFRy2hOFdvx=HcKks3bGw@mail.gmail.com> (raw)
In-Reply-To: <20220630015618.3586787-3-goldstein.w.n@gmail.com>
On Wed, Jun 29, 2022 at 6:56 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
>
LGTM.
Thanks.
--
H.J.
next prev parent reply other threads:[~2022-06-30 2:04 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-30 1:56 [PATCH v1] x86: Add missing IS_IN (libc) check to memmove-ssse3.S Noah Goldstein
2022-06-30 1:56 ` [PATCH v1] x86: Add missing IS_IN (libc) check to strcspn-sse4.c Noah Goldstein
2022-06-30 2:03 ` H.J. Lu
2022-06-30 1:56 ` [PATCH v1] x86: Add missing IS_IN (libc) check to strncmp-sse4_2.S Noah Goldstein
2022-06-30 2:03 ` H.J. Lu [this message]
2022-07-14 3:08 ` Sunil Pandey
2022-06-30 2:02 ` [PATCH v1] x86: Add missing IS_IN (libc) check to memmove-ssse3.S H.J. Lu
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