new file mode 100644
@@ -0,0 +1,6 @@
+#define __bzero __bzero_i386
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+#undef weak_alias
+#define weak_alias(name, aliasname)
+#include <sysdeps/i386/bzero.S>
new file mode 100644
@@ -0,0 +1,7 @@
+#include <sysdeps/i386/multiarch/bzero-i586.S>
+
+#ifdef SHARED
+ .globl __GI_bzero
+ .hidden __GI_bzero
+ __GI_bzero = __bzero_i586
+#endif
new file mode 100644
@@ -0,0 +1 @@
+#include <sysdeps/i386/multiarch/bzero.c>
new file mode 100644
@@ -0,0 +1,5 @@
+#define memset __memset_i386
+#define __memset_chk __memset_chk_i386
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+#include <sysdeps/i386/memset.S>
new file mode 100644
@@ -0,0 +1,7 @@
+#include <sysdeps/i386/multiarch/memset-i586.S>
+
+#ifdef SHARED
+ .globl __GI_memset
+ .hidden __GI_memset
+ __GI_memset = __memset_i586
+#endif
new file mode 100644
@@ -0,0 +1 @@
+#include <sysdeps/i386/multiarch/memset.c>
@@ -1,14 +1,8 @@
-ifeq ($(subdir),csu)
-tests += test-multiarch
-gen-as-const-headers += ifunc-defines.sym
-endif
-
ifeq ($(subdir),string)
-gen-as-const-headers += locale-defines.sym
-sysdep_routines += bzero-sse2 memset-sse2 memcpy-ssse3 mempcpy-ssse3 \
+sysdep_routines += memcpy-ssse3 mempcpy-ssse3 \
memmove-ssse3 memcpy-ssse3-rep mempcpy-ssse3-rep \
memmove-ssse3-rep bcopy-ssse3 bcopy-ssse3-rep \
- memset-sse2-rep bzero-sse2-rep strcmp-ssse3 \
+ strcmp-ssse3 \
strcmp-sse4 strncmp-c strncmp-ssse3 strncmp-sse4 \
memcmp-ssse3 memcmp-sse4 varshift \
strlen-sse2 strlen-sse2-bsf strncpy-c strcpy-ssse3 \
new file mode 100644
@@ -0,0 +1 @@
+/* Dummy file. */
new file mode 100644
@@ -0,0 +1 @@
+/* Dummy file. */
new file mode 100644
@@ -0,0 +1,7 @@
+#include <sysdeps/i386/multiarch/bzero-i686.S>
+
+#ifdef SHARED
+ .globl __GI_bzero
+ .hidden __GI_bzero
+ __GI_bzero = __bzero_i686
+#endif
deleted file mode 100644
@@ -1,62 +0,0 @@
-/* Multiple versions of bzero
- All versions must be listed in ifunc-impl-list.c.
- Copyright (C) 2010-2015 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>
-
-/* Define multiple versions only for the definition in lib. */
-#if IS_IN (libc)
- .text
-ENTRY(__bzero)
- .type __bzero, @gnu_indirect_function
- LOAD_GOT_AND_RTLD_GLOBAL_RO
- LOAD_FUNC_GOT_EAX (__bzero_ia32)
- HAS_CPU_FEATURE (SSE2)
- jz 2f
- LOAD_FUNC_GOT_EAX ( __bzero_sse2)
- HAS_CPU_FEATURE (Fast_Rep_String)
- jz 2f
- LOAD_FUNC_GOT_EAX (__bzero_sse2_rep)
-2: ret
-END(__bzero)
-
-# undef ENTRY
-# define ENTRY(name) \
- .type __bzero_ia32, @function; \
- .p2align 4; \
- .globl __bzero_ia32; \
- .hidden __bzero_ia32; \
- __bzero_ia32: cfi_startproc; \
- CALL_MCOUNT
-# undef END
-# define END(name) \
- cfi_endproc; .size __bzero_ia32, .-__bzero_ia32
-
-# ifdef SHARED
-# undef libc_hidden_builtin_def
-/* IFUNC doesn't work with the hidden functions in shared library since
- they will be called without setting up EBX needed for PLT which is
- used by IFUNC. */
-# define libc_hidden_builtin_def(name) \
- .globl __GI___bzero; __GI___bzero = __bzero_ia32
-# endif
-#endif
-
-#include "../bzero.S"
new file mode 100644
@@ -0,0 +1 @@
+#include <sysdeps/i386/multiarch/bzero.c>
new file mode 100644
@@ -0,0 +1 @@
+/* Dummy file. */
new file mode 100644
@@ -0,0 +1 @@
+/* Dummy file. */
new file mode 100644
@@ -0,0 +1,7 @@
+#include <sysdeps/i386/multiarch/memset-i686.S>
+
+#ifdef SHARED
+ .globl __GI_memset
+ .hidden __GI_memset
+ __GI_memset = __memset_i686
+#endif
deleted file mode 100644
@@ -1,75 +0,0 @@
-/* Multiple versions of memset
- All versions must be listed in ifunc-impl-list.c.
- Copyright (C) 2010-2015 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>
-
-/* Define multiple versions only for the definition in lib. */
-#if IS_IN (libc)
- .text
-ENTRY(memset)
- .type memset, @gnu_indirect_function
- LOAD_GOT_AND_RTLD_GLOBAL_RO
- LOAD_FUNC_GOT_EAX (__memset_ia32)
- HAS_CPU_FEATURE (SSE2)
- jz 2f
- LOAD_FUNC_GOT_EAX (__memset_sse2)
- HAS_CPU_FEATURE (Fast_Rep_String)
- jz 2f
- LOAD_FUNC_GOT_EAX (__memset_sse2_rep)
-2: ret
-END(memset)
-
-# undef ENTRY
-# define ENTRY(name) \
- .type __memset_ia32, @function; \
- .globl __memset_ia32; \
- .p2align 4; \
- __memset_ia32: cfi_startproc; \
- CALL_MCOUNT
-# undef END
-# define END(name) \
- cfi_endproc; .size __memset_ia32, .-__memset_ia32
-
-# undef ENTRY_CHK
-# define ENTRY_CHK(name) \
- .type __memset_chk_ia32, @function; \
- .globl __memset_chk_ia32; \
- .p2align 4; \
- __memset_chk_ia32: cfi_startproc; \
- CALL_MCOUNT
-# undef END_CHK
-# define END_CHK(name) \
- cfi_endproc; .size __memset_chk_ia32, .-__memset_chk_ia32
-
-# ifdef SHARED
-# undef libc_hidden_builtin_def
-/* IFUNC doesn't work with the hidden functions in shared library since
- they will be called without setting up EBX needed for PLT which is
- used by IFUNC. */
-# define libc_hidden_builtin_def(name) \
- .globl __GI_memset; __GI_memset = __memset_ia32
-# endif
-
-# undef strong_alias
-# define strong_alias(original, alias)
-#endif
-
-#include "../memset.S"
new file mode 100644
@@ -0,0 +1 @@
+#include <sysdeps/i386/multiarch/memset.c>
deleted file mode 100644
@@ -1,82 +0,0 @@
-/* Multiple versions of __memset_chk
- All versions must be listed in ifunc-impl-list.c.
- Copyright (C) 2010-2015 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>
-
-/* Define multiple versions only for the definition in lib. */
-#if IS_IN (libc)
- .text
-ENTRY(__memset_chk)
- .type __memset_chk, @gnu_indirect_function
- LOAD_GOT_AND_RTLD_GLOBAL_RO
- LOAD_FUNC_GOT_EAX (__memset_chk_ia32)
- HAS_CPU_FEATURE (SSE2)
- jz 2f
- LOAD_FUNC_GOT_EAX (__memset_chk_sse2)
- HAS_CPU_FEATURE (Fast_Rep_String)
- jz 2f
- LOAD_FUNC_GOT_EAX (__memset_chk_sse2_rep)
-2: ret
-END(__memset_chk)
-
-# ifdef SHARED
-strong_alias (__memset_chk, __memset_zero_constant_len_parameter)
- .section .gnu.warning.__memset_zero_constant_len_parameter
- .string "memset used with constant zero length parameter; this could be due to transposed parameters"
-# else
- .text
- .type __memset_chk_sse2, @function
- .p2align 4;
-__memset_chk_sse2:
- cfi_startproc
- CALL_MCOUNT
- movl 12(%esp), %eax
- cmpl %eax, 16(%esp)
- jb __chk_fail
- jmp __memset_sse2
- cfi_endproc
- .size __memset_chk_sse2, .-__memset_chk_sse2
-
- .type __memset_chk_sse2_rep, @function
- .p2align 4;
-__memset_chk_sse2_rep:
- cfi_startproc
- CALL_MCOUNT
- movl 12(%esp), %eax
- cmpl %eax, 16(%esp)
- jb __chk_fail
- jmp __memset_sse2_rep
- cfi_endproc
- .size __memset_chk_sse2_rep, .-__memset_chk_sse2_rep
-
- .type __memset_chk_ia32, @function
- .p2align 4;
-__memset_chk_ia32:
- cfi_startproc
- CALL_MCOUNT
- movl 12(%esp), %eax
- cmpl %eax, 16(%esp)
- jb __chk_fail
- jmp __memset_ia32
- cfi_endproc
- .size __memset_chk_ia32, .-__memset_chk_ia32
-# endif
-#endif
new file mode 100644
@@ -0,0 +1 @@
+#include <sysdeps/i386/i686/memset.S>
new file mode 100644
@@ -0,0 +1,12 @@
+ifeq ($(subdir),csu)
+tests += test-multiarch
+gen-as-const-headers += ifunc-defines.sym
+endif
+
+ifeq ($(subdir),string)
+gen-as-const-headers += locale-defines.sym
+sysdep_routines += bzero-i386 bzero-i586 bzero-i686 \
+ bzero-sse2 bzero-sse2-rep \
+ memset-i386 memset-i586 memset-i686 \
+ memset-sse2 memset-sse2-rep
+endif
new file mode 100644
@@ -0,0 +1,7 @@
+#include <sysdeps/i386/i586/multiarch/bzero-i386.S>
+
+#ifdef SHARED
+ .globl __GI_bzero
+ .hidden __GI_bzero
+ __GI_bzero = __bzero_i386
+#endif
new file mode 100644
@@ -0,0 +1,6 @@
+#define __bzero __bzero_i586
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+#undef weak_alias
+#define weak_alias(name, aliasname)
+#include <sysdeps/i386/i586/bzero.S>
new file mode 100644
@@ -0,0 +1,6 @@
+#define __bzero __bzero_i686
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+#undef weak_alias
+#define weak_alias(name, aliasname)
+#include <sysdeps/i386/i686/bzero.S>
similarity index 100%
rename from sysdeps/i386/i686/multiarch/bzero-sse2-rep.S
rename to sysdeps/i386/multiarch/bzero-sse2-rep.S
similarity index 100%
rename from sysdeps/i386/i686/multiarch/bzero-sse2.S
rename to sysdeps/i386/multiarch/bzero-sse2.S
new file mode 100644
@@ -0,0 +1,63 @@
+/* Multiple versions of bzero.
+ All versions must be listed in ifunc-impl-list.c.
+ Copyright (C) 2015 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
+ <http://www.gnu.org/licenses/>. */
+
+/* Define multiple versions only for the definition in lib. */
+#if IS_IN (libc)
+/* Redefine bzero so that the compiler won't complain about the type
+ mismatch with the IFUNC selector in strong_alias, below. */
+# undef bzero
+# define bzero __redirect_bzero
+# include <string.h>
+# undef bzero
+
+# include <init-arch.h>
+
+extern __typeof (__redirect_bzero) __bzero_i386 attribute_hidden;
+extern __typeof (__redirect_bzero) __bzero_i586 attribute_hidden;
+extern __typeof (__redirect_bzero) __bzero_i686 attribute_hidden;
+extern __typeof (__redirect_bzero) __bzero_sse2 attribute_hidden;
+extern __typeof (__redirect_bzero) __bzero_sse2_rep attribute_hidden;
+
+/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
+ ifunc symbol properly. */
+extern __typeof (__redirect_bzero) __bzero;
+extern void *bzero_ifunc (void) __asm__ ("__bzero");
+
+void *
+bzero_ifunc (void)
+{
+ if (HAS_CPU_FEATURE (SSE2))
+ {
+ if (HAS_ARCH_FEATURE (Fast_Rep_String))
+ return __bzero_sse2_rep;
+ else
+ return __bzero_sse2;
+ }
+
+ if (USE_I686)
+ return __bzero_i686;
+ else if (USE_I586)
+ return __bzero_i586;
+ else
+ return __bzero_i386;
+}
+__asm__ (".type __bzero, %gnu_indirect_function");
+
+weak_alias (__bzero, bzero)
+#endif
similarity index 100%
rename from sysdeps/i386/i686/multiarch/ifunc-defines.sym
rename to sysdeps/i386/multiarch/ifunc-defines.sym
similarity index 94%
rename from sysdeps/i386/i686/multiarch/ifunc-impl-list.c
rename to sysdeps/i386/multiarch/ifunc-impl-list.c
@@ -1,4 +1,4 @@
-/* Enumerate available IFUNC implementations of a function. i686 version.
+/* Enumerate available IFUNC implementations of a function. i386 version.
Copyright (C) 2012-2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -36,6 +36,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
size_t i = 0;
+#if 0
/* Support sysdeps/i386/i686/multiarch/bcopy.S. */
IFUNC_IMPL (i, name, bcopy,
IFUNC_IMPL_ADD (array, i, bcopy, HAS_CPU_FEATURE (SSSE3),
@@ -45,6 +46,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_IMPL_ADD (array, i, bcopy, HAS_CPU_FEATURE (SSE2),
__bcopy_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, bcopy, 1, __bcopy_ia32))
+#endif
/* Support sysdeps/i386/i686/multiarch/bzero.S. */
IFUNC_IMPL (i, name, bzero,
@@ -52,8 +54,14 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__bzero_sse2_rep)
IFUNC_IMPL_ADD (array, i, bzero, HAS_CPU_FEATURE (SSE2),
__bzero_sse2)
- IFUNC_IMPL_ADD (array, i, bzero, 1, __bzero_ia32))
+ IFUNC_IMPL_ADD (array, i, bzero, HAS_I686, __bzero_i686)
+#if MINIMUM_ISA < 686
+ IFUNC_IMPL_ADD (array, i, bzero, HAS_I586, __bzero_i586)
+ IFUNC_IMPL_ADD (array, i, bzero, 1, __bzero_i386)
+#endif
+ )
+#if 0
/* Support sysdeps/i386/i686/multiarch/memchr.S. */
IFUNC_IMPL (i, name, memchr,
IFUNC_IMPL_ADD (array, i, memchr, HAS_CPU_FEATURE (SSE2),
@@ -101,6 +109,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_IMPL_ADD (array, i, memrchr, HAS_CPU_FEATURE (SSE2),
__memrchr_sse2)
IFUNC_IMPL_ADD (array, i, memrchr, 1, __memrchr_ia32))
+#endif
/* Support sysdeps/i386/i686/multiarch/memset_chk.S. */
IFUNC_IMPL (i, name, __memset_chk,
@@ -110,8 +119,15 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_IMPL_ADD (array, i, __memset_chk,
HAS_CPU_FEATURE (SSE2),
__memset_chk_sse2)
+ IFUNC_IMPL_ADD (array, i, __memset_chk,
+ HAS_I686, __memset_chk_i686)
+#if MINIMUM_ISA < 686
+ IFUNC_IMPL_ADD (array, i, __memset_chk,
+ HAS_I586, __memset_chk_i586)
IFUNC_IMPL_ADD (array, i, __memset_chk, 1,
- __memset_chk_ia32))
+ __memset_chk_i386)
+#endif
+ )
/* Support sysdeps/i386/i686/multiarch/memset.S. */
IFUNC_IMPL (i, name, memset,
@@ -119,8 +135,16 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__memset_sse2_rep)
IFUNC_IMPL_ADD (array, i, memset, HAS_CPU_FEATURE (SSE2),
__memset_sse2)
- IFUNC_IMPL_ADD (array, i, memset, 1, __memset_ia32))
+ IFUNC_IMPL_ADD (array, i, memset, HAS_I686,
+ __memset_i686)
+#if MINIMUM_ISA < 686
+ IFUNC_IMPL_ADD (array, i, memset, HAS_I586,
+ __memset_i586)
+ IFUNC_IMPL_ADD (array, i, memset, 1, __memset_i386)
+#endif
+ )
+#if 0
/* Support sysdeps/i386/i686/multiarch/rawmemchr.S. */
IFUNC_IMPL (i, name, rawmemchr,
IFUNC_IMPL_ADD (array, i, rawmemchr, HAS_CPU_FEATURE (SSE2),
@@ -371,6 +395,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__strncmp_ssse3)
IFUNC_IMPL_ADD (array, i, strncmp, 1, __strncmp_ia32))
#endif
+#endif
return i;
}
similarity index 100%
rename from sysdeps/i386/i686/multiarch/locale-defines.sym
rename to sysdeps/i386/multiarch/locale-defines.sym
new file mode 100644
@@ -0,0 +1,7 @@
+#include <sysdeps/i386/i586/multiarch/memset-i386.S>
+
+#ifdef SHARED
+ .globl __GI_memset
+ .hidden __GI_memset
+ __GI_memset = __memset_i386
+#endif
new file mode 100644
@@ -0,0 +1,5 @@
+#define memset __memset_i586
+#define __memset_chk __memset_chk_i586
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+#include <sysdeps/i386/i586/memset.S>
new file mode 100644
@@ -0,0 +1,5 @@
+#define memset __memset_i686
+#define __memset_chk __memset_chk_i686
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+#include <sysdeps/i386/i686/memset.S>
similarity index 100%
rename from sysdeps/i386/i686/multiarch/memset-sse2-rep.S
rename to sysdeps/i386/multiarch/memset-sse2-rep.S
similarity index 100%
rename from sysdeps/i386/i686/multiarch/memset-sse2.S
rename to sysdeps/i386/multiarch/memset-sse2.S
new file mode 100644
@@ -0,0 +1,63 @@
+/* Multiple versions of memset.
+ All versions must be listed in ifunc-impl-list.c.
+ Copyright (C) 2015 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
+ <http://www.gnu.org/licenses/>. */
+
+/* Define multiple versions only for the definition in lib. */
+#if IS_IN (libc)
+/* Redefine memset so that the compiler won't complain about the type
+ mismatch with the IFUNC selector in strong_alias, below. */
+# undef memset
+# define memset __redirect_memset
+# include <string.h>
+# undef memset
+
+# include <init-arch.h>
+
+extern __typeof (__redirect_memset) __memset_i386 attribute_hidden;
+extern __typeof (__redirect_memset) __memset_i586 attribute_hidden;
+extern __typeof (__redirect_memset) __memset_i686 attribute_hidden;
+extern __typeof (__redirect_memset) __memset_sse2 attribute_hidden;
+extern __typeof (__redirect_memset) __memset_sse2_rep attribute_hidden;
+
+/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
+ ifunc symbol properly. */
+extern __typeof (__redirect_memset) __memset;
+extern void *memset_ifunc (void) __asm__ ("__memset");
+
+void *
+memset_ifunc (void)
+{
+ if (HAS_CPU_FEATURE (SSE2))
+ {
+ if (HAS_ARCH_FEATURE (Fast_Rep_String))
+ return __memset_sse2_rep;
+ else
+ return __memset_sse2;
+ }
+
+ if (USE_I686)
+ return __memset_i686;
+ else if (USE_I586)
+ return __memset_i586;
+ else
+ return __memset_i386;
+}
+__asm__ (".type __memset, %gnu_indirect_function");
+
+strong_alias (__memset, memset)
+#endif
new file mode 100644
@@ -0,0 +1,101 @@
+/* Multiple versions of __memset_chk
+ All versions must be listed in ifunc-impl-list.c.
+ Copyright (C) 2015 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/>. */
+
+/* Define multiple versions only for the definition in lib. */
+#if IS_IN (libc)
+# include <stddef.h>
+extern void * __memset_chk (void *, int, size_t, size_t);
+
+# ifdef SHARED
+extern __typeof (__memset_chk) __memset_chk_i386 attribute_hidden;
+extern __typeof (__memset_chk) __memset_chk_i586 attribute_hidden;
+extern __typeof (__memset_chk) __memset_chk_i686 attribute_hidden;
+extern __typeof (__memset_chk) __memset_chk_sse2 attribute_hidden;
+extern __typeof (__memset_chk) __memset_chk_sse2_rep attribute_hidden;
+
+# include <init-arch.h>
+# else
+/* Redefine memset so that the compiler won't complain about the type
+ mismatch with the IFUNC selector in strong_alias, below. */
+# undef memset
+# define memset __redirect_memset
+# include <string.h>
+# undef memset
+
+extern __typeof (__redirect_memset) __memset_i386 attribute_hidden;
+extern __typeof (__redirect_memset) __memset_i586 attribute_hidden;
+extern __typeof (__redirect_memset) __memset_i686 attribute_hidden;
+extern __typeof (__redirect_memset) __memset_sse2 attribute_hidden;
+extern __typeof (__redirect_memset) __memset_sse2_rep attribute_hidden;
+
+# include <init-arch.h>
+
+/* Due to
+ https://gcc.gnu.org/bugzilla/show_bug.cgi?id=10837
+ noreturn attribute disable tail call optimization. Removes noreturn
+ attribute to enable tail call optimization. */
+extern void *chk_fail (void) __asm__ ("__chk_fail") attribute_hidden;
+
+#define ifunc_chk(func, arch) \
+static void * \
+func##_chk_##arch (void *dstpp, int c, size_t len, \
+ size_t dstlen) \
+{ \
+ if (__glibc_unlikely (dstlen < len)) \
+ return chk_fail (); \
+ return func##_##arch (dstpp, c, len); \
+}
+
+# if MINIMUM_ISA < 686
+ifunc_chk (__memset, i386)
+ifunc_chk (__memset, i586)
+# else
+extern __typeof (__redirect_memset) __memset_chk_i386 attribute_hidden;
+extern __typeof (__redirect_memset) __memset_chk_i586 attribute_hidden;
+# endif
+ifunc_chk (__memset, i686)
+ifunc_chk (__memset, sse2)
+ifunc_chk (__memset, sse2_rep)
+# endif
+
+/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
+ ifunc symbol properly. */
+extern void *memset_chk_ifunc (void) __asm__ ("__memset_chk");
+
+void *
+memset_chk_ifunc (void)
+{
+ if (HAS_CPU_FEATURE (SSE2))
+ {
+ if (HAS_ARCH_FEATURE (Fast_Unaligned_Load))
+ return __memset_chk_sse2_rep;
+ else
+ return __memset_chk_sse2;
+ }
+
+ if (USE_I686)
+ return __memset_chk_i686;
+ else if (USE_I586)
+ return __memset_chk_i586;
+ else
+ return __memset_chk_i386;
+}
+__asm__ (".type __memset_chk, %gnu_indirect_function");
+#endif
similarity index 100%
rename from sysdeps/i386/i686/multiarch/test-multiarch.c
rename to sysdeps/i386/multiarch/test-multiarch.c