about summary refs log tree commit diff
path: root/REORG.TODO/sysdeps/x86_64/multiarch/strcspn.S
diff options
context:
space:
mode:
Diffstat (limited to 'REORG.TODO/sysdeps/x86_64/multiarch/strcspn.S')
-rw-r--r--REORG.TODO/sysdeps/x86_64/multiarch/strcspn.S69
1 files changed, 69 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/x86_64/multiarch/strcspn.S b/REORG.TODO/sysdeps/x86_64/multiarch/strcspn.S
new file mode 100644
index 0000000000..d102c7e80b
--- /dev/null
+++ b/REORG.TODO/sysdeps/x86_64/multiarch/strcspn.S
@@ -0,0 +1,69 @@
+/* Multiple versions of strcspn
+   All versions must be listed in ifunc-impl-list.c.
+   Copyright (C) 2009-2017 Free Software Foundation, Inc.
+   Contributed by Intel Corporation.
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+#include <sysdep.h>
+#include <init-arch.h>
+
+#ifdef USE_AS_STRPBRK
+#define STRCSPN_SSE42	__strpbrk_sse42
+#define STRCSPN_SSE2	__strpbrk_sse2
+#define __GI_STRCSPN	__GI_strpbrk
+#else
+#ifndef STRCSPN
+#define STRCSPN		strcspn
+#define STRCSPN_SSE42	__strcspn_sse42
+#define STRCSPN_SSE2	__strcspn_sse2
+#define __GI_STRCSPN	__GI_strcspn
+#endif
+#endif
+
+/* Define multiple versions only for the definition in libc.  Don't
+   define multiple versions for strpbrk in static library since we
+   need strpbrk before the initialization happened.  */
+#if (defined SHARED || !defined USE_AS_STRPBRK) && IS_IN (libc)
+	.text
+ENTRY(STRCSPN)
+	.type	STRCSPN, @gnu_indirect_function
+	LOAD_RTLD_GLOBAL_RO_RDX
+	leaq	STRCSPN_SSE2(%rip), %rax
+	HAS_CPU_FEATURE (SSE4_2)
+	jz	2f
+	leaq	STRCSPN_SSE42(%rip), %rax
+2:	ret
+END(STRCSPN)
+
+# undef ENTRY
+# define ENTRY(name) \
+	.type STRCSPN_SSE2, @function; \
+	.globl STRCSPN_SSE2; \
+	.align 16; \
+	STRCSPN_SSE2: cfi_startproc; \
+	CALL_MCOUNT
+# undef END
+# define END(name) \
+	cfi_endproc; .size STRCSPN_SSE2, .-STRCSPN_SSE2
+#endif
+
+#ifdef USE_AS_STRPBRK
+#include "../strpbrk.S"
+#else
+#include "../strcspn.S"
+#endif