1 files changed, 92 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/i386/i686/multiarch/strcat.S b/REORG.TODO/sysdeps/i386/i686/multiarch/strcat.S
new file mode 100644
index 0000000000..8412cb6f23
--- /dev/null
+++ b/REORG.TODO/sysdeps/i386/i686/multiarch/strcat.S
@@ -0,0 +1,92 @@
+/* Multiple versions of strcat
+   All versions must be listed in ifunc-impl-list.c.
+   Copyright (C) 2011-2017 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 <sysdep.h>
+#include <init-arch.h>
+
+#ifndef USE_AS_STRNCAT
+# ifndef STRCAT
+#  define STRCAT strcat
+# endif
+#endif
+
+#ifdef USE_AS_STRNCAT
+# define STRCAT_SSSE3	__strncat_ssse3
+# define STRCAT_SSE2		__strncat_sse2
+# define STRCAT_IA32		__strncat_ia32
+# define __GI_STRCAT		__GI_strncat
+#else
+# define STRCAT_SSSE3	__strcat_ssse3
+# define STRCAT_SSE2		__strcat_sse2
+# define STRCAT_IA32		__strcat_ia32
+# define __GI_STRCAT		__GI_strcat
+#endif
+
+
+/* Define multiple versions only for the definition in libc.  Don't
+   define multiple versions for strncat in static library since we
+   need strncat before the initialization happened.  */
+#if IS_IN (libc)
+
+	.text
+ENTRY(STRCAT)
+	.type	STRCAT, @gnu_indirect_function
+	LOAD_GOT_AND_RTLD_GLOBAL_RO
+	LOAD_FUNC_GOT_EAX (STRCAT_IA32)
+	HAS_CPU_FEATURE (SSE2)
+	jz	2f
+	LOAD_FUNC_GOT_EAX (STRCAT_SSE2)
+	HAS_ARCH_FEATURE (Fast_Unaligned_Load)
+	jnz	2f
+	HAS_CPU_FEATURE (SSSE3)
+	jz	2f
+	LOAD_FUNC_GOT_EAX (STRCAT_SSSE3)
+2:	ret
+END(STRCAT)
+
+# undef ENTRY
+# define ENTRY(name) \
+	.type STRCAT_IA32, @function; \
+	.align 16; \
+	.globl STRCAT_IA32; \
+	.hidden STRCAT_IA32; \
+	STRCAT_IA32: cfi_startproc; \
+	CALL_MCOUNT
+# undef END
+# define END(name) \
+	cfi_endproc; .size STRCAT_IA32, .-STRCAT_IA32
+
+# ifdef SHARED
+#  undef libc_hidden_builtin_def
+/* It doesn't make sense to send libc-internal strcat calls through a PLT.
+   The speedup we get from using SSSE3 instruction is likely eaten away
+   by the indirect call in the PLT.  */
+#  define libc_hidden_builtin_def(name) \
+	.globl __GI_STRCAT; __GI_STRCAT = STRCAT_IA32
+#  undef libc_hidden_def
+#  define libc_hidden_def(name) \
+	.globl __GI___STRCAT; __GI___STRCAT = STRCAT_IA32
+
+# endif
+#endif
+
+#ifndef USE_AS_STRNCAT
+# include "../../strcat.S"
+#endif