From: Noah Goldstein via Libc-alpha <libc-alpha@sourceware.org>
To: libc-alpha@sourceware.org
Subject: [PATCH v1 1/6] String: Add __memcmpeq as build target
Date: Tue, 26 Oct 2021 21:43:18 -0500 [thread overview]
Message-ID: <20211027024323.1199441-1-goldstein.w.n@gmail.com> (raw)
No bug. This commit just adds __memcmpeq as a build target so that
implementations for __memcmpeq that are not just aliases to memcmp can
be supported.
---
string/Makefile | 2 +-
string/memcmpeq.c | 24 ++++++++++++++++++++++++
2 files changed, 25 insertions(+), 1 deletion(-)
create mode 100644 string/memcmpeq.c
diff --git a/string/Makefile b/string/Makefile
index 40d6fac133..2199dd30b7 100644
--- a/string/Makefile
+++ b/string/Makefile
@@ -34,7 +34,7 @@ routines := strcat strchr strcmp strcoll strcpy strcspn \
strerror _strerror strlen strnlen \
strncat strncmp strncpy \
strrchr strpbrk strsignal strspn strstr strtok \
- strtok_r strxfrm memchr memcmp memmove memset \
+ strtok_r strxfrm memchr memcmp memcmpeq memmove memset \
mempcpy bcopy bzero ffs ffsll stpcpy stpncpy \
strcasecmp strncase strcasecmp_l strncase_l \
memccpy memcpy wordcopy strsep strcasestr \
diff --git a/string/memcmpeq.c b/string/memcmpeq.c
new file mode 100644
index 0000000000..08726325a8
--- /dev/null
+++ b/string/memcmpeq.c
@@ -0,0 +1,24 @@
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+/* This file is intentionally left empty. It exists so that both
+ architectures which implement __memcmpeq seperately from memcmp and
+ architectures which implement __memcmpeq by having it alias memcmp will
+ build.
+
+ The alias for __memcmpeq to memcmp for the C implementation is in
+ memcmp.c. */
--
2.25.1
next reply other threads:[~2021-10-27 2:43 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-27 2:43 Noah Goldstein via Libc-alpha [this message]
2021-10-27 2:43 ` [PATCH v1 2/6] Benchtests: Add benchtests for __memcmpeq Noah Goldstein via Libc-alpha
2021-10-27 12:45 ` H.J. Lu via Libc-alpha
2021-10-27 16:08 ` Noah Goldstein via Libc-alpha
2021-10-27 16:07 ` [PATCH v2 " Noah Goldstein via Libc-alpha
2021-10-27 17:59 ` H.J. Lu via Libc-alpha
2021-10-27 2:43 ` [PATCH v1 3/6] x86_64: Add support for __memcmpeq using sse2, avx2, and evex Noah Goldstein via Libc-alpha
2021-10-27 12:47 ` H.J. Lu via Libc-alpha
2021-10-27 2:43 ` [PATCH v1 4/6] x86_64: Add sse2 optimized __memcmpeq in memcmp-sse2.S Noah Goldstein via Libc-alpha
2021-10-27 12:48 ` H.J. Lu via Libc-alpha
2021-10-27 2:43 ` [PATCH v1 5/6] x86_64: Add avx2 optimized __memcmpeq in memcmpeq-avx2.S Noah Goldstein via Libc-alpha
2021-10-27 12:48 ` H.J. Lu via Libc-alpha
2021-10-27 2:43 ` [PATCH v1 6/6] x86_64: Add evex optimized __memcmpeq in memcmpeq-evex.S Noah Goldstein via Libc-alpha
2021-10-27 2:44 ` Noah Goldstein via Libc-alpha
2021-10-27 12:49 ` H.J. Lu via Libc-alpha
2021-10-27 12:42 ` [PATCH v1 1/6] String: Add __memcmpeq as build target H.J. Lu via Libc-alpha
2021-10-27 18:46 ` Noah Goldstein via Libc-alpha
2021-10-28 17:57 ` Joseph Myers
2021-10-28 18:25 ` Noah Goldstein via Libc-alpha
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