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GNU C Library master sources branch hjl/erms/master created. glibc-2.23-108-g13b76b0
- From: hjl at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 18 Mar 2016 14:53:45 -0000
- Subject: GNU C Library master sources branch hjl/erms/master created. glibc-2.23-108-g13b76b0
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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=13b76b08d4ebbd9e0bad848dea0e9d8f65a5a4ca
commit 13b76b08d4ebbd9e0bad848dea0e9d8f65a5a4ca
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Apr 11 08:51:16 2014 -0700
Test 32-bit ERMS memcpy/memset
* sysdeps/i386/i686/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add __bcopy_erms, __bzero_erms,
__memmove_chk_erms, __memmove_erms, __memset_chk_erms,
__memset_erms, __memcpy_chk_erms, __memcpy_erms,
__mempcpy_chk_erms and __mempcpy_erms.
diff --git a/sysdeps/i386/i686/multiarch/ifunc-impl-list.c b/sysdeps/i386/i686/multiarch/ifunc-impl-list.c
index ef30a95..f3cbca0 100644
--- a/sysdeps/i386/i686/multiarch/ifunc-impl-list.c
+++ b/sysdeps/i386/i686/multiarch/ifunc-impl-list.c
@@ -44,6 +44,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__bcopy_ssse3)
IFUNC_IMPL_ADD (array, i, bcopy, HAS_CPU_FEATURE (SSE2),
__bcopy_sse2_unaligned)
+ IFUNC_IMPL_ADD (array, i, bcopy, 1, __bcopy_erms)
IFUNC_IMPL_ADD (array, i, bcopy, 1, __bcopy_ia32))
/* Support sysdeps/i386/i686/multiarch/bzero.S. */
@@ -52,6 +53,7 @@ __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_erms)
IFUNC_IMPL_ADD (array, i, bzero, 1, __bzero_ia32))
/* Support sysdeps/i386/i686/multiarch/memchr.S. */
@@ -82,6 +84,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
HAS_CPU_FEATURE (SSE2),
__memmove_chk_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, __memmove_chk, 1,
+ __memmove_chk_erms)
+ IFUNC_IMPL_ADD (array, i, __memmove_chk, 1,
__memmove_chk_ia32))
/* Support sysdeps/i386/i686/multiarch/memmove.S. */
@@ -92,6 +96,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__memmove_ssse3)
IFUNC_IMPL_ADD (array, i, memmove, HAS_CPU_FEATURE (SSE2),
__memmove_sse2_unaligned)
+ IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_erms)
IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_ia32))
/* Support sysdeps/i386/i686/multiarch/memrchr.S. */
@@ -111,6 +116,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
HAS_CPU_FEATURE (SSE2),
__memset_chk_sse2)
IFUNC_IMPL_ADD (array, i, __memset_chk, 1,
+ __memset_chk_erms)
+ IFUNC_IMPL_ADD (array, i, __memset_chk, 1,
__memset_chk_ia32))
/* Support sysdeps/i386/i686/multiarch/memset.S. */
@@ -119,6 +126,7 @@ __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_erms)
IFUNC_IMPL_ADD (array, i, memset, 1, __memset_ia32))
/* Support sysdeps/i386/i686/multiarch/rawmemchr.S. */
@@ -319,6 +327,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
HAS_CPU_FEATURE (SSE2),
__memcpy_chk_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, __memcpy_chk, 1,
+ __memcpy_chk_erms)
+ IFUNC_IMPL_ADD (array, i, __memcpy_chk, 1,
__memcpy_chk_ia32))
/* Support sysdeps/i386/i686/multiarch/memcpy.S. */
@@ -329,6 +339,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__memcpy_ssse3)
IFUNC_IMPL_ADD (array, i, memcpy, HAS_CPU_FEATURE (SSE2),
__memcpy_sse2_unaligned)
+ IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_erms)
IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_ia32))
/* Support sysdeps/i386/i686/multiarch/mempcpy_chk.S. */
@@ -343,6 +354,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
HAS_CPU_FEATURE (SSE2),
__mempcpy_chk_sse2_unaligned)
IFUNC_IMPL_ADD (array, i, __mempcpy_chk, 1,
+ __mempcpy_chk_erms)
+ IFUNC_IMPL_ADD (array, i, __mempcpy_chk, 1,
__mempcpy_chk_ia32))
/* Support sysdeps/i386/i686/multiarch/mempcpy.S. */
@@ -353,6 +366,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__mempcpy_ssse3)
IFUNC_IMPL_ADD (array, i, mempcpy, HAS_CPU_FEATURE (SSE2),
__mempcpy_sse2_unaligned)
+ IFUNC_IMPL_ADD (array, i, mempcpy, 1, __mempcpy_erms)
IFUNC_IMPL_ADD (array, i, mempcpy, 1, __mempcpy_ia32))
/* Support sysdeps/i386/i686/multiarch/strlen.S. */
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=e0bac95bc67df50941d3b9ccd9cdbd174ed24c7e
commit e0bac95bc67df50941d3b9ccd9cdbd174ed24c7e
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Apr 11 08:25:17 2014 -0700
Test 64-bit ERMS memcpy/memset
* sysdeps/x86_64/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add __memmove_chk_erms,
__memmove_erms, __memset_erms, __memset_chk_erms,
__memcpy_chk_erms, __memcpy_erms, __mempcpy_chk_erms and
__mempcpy_erms.
diff --git a/sysdeps/x86_64/multiarch/ifunc-impl-list.c b/sysdeps/x86_64/multiarch/ifunc-impl-list.c
index 188b6d3..b0d300d 100644
--- a/sysdeps/x86_64/multiarch/ifunc-impl-list.c
+++ b/sysdeps/x86_64/multiarch/ifunc-impl-list.c
@@ -63,6 +63,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
HAS_CPU_FEATURE (SSSE3),
__memmove_chk_ssse3)
IFUNC_IMPL_ADD (array, i, __memmove_chk, 1,
+ __memmove_chk_erms)
+ IFUNC_IMPL_ADD (array, i, __memmove_chk, 1,
__memmove_chk_sse2))
/* Support sysdeps/x86_64/multiarch/memmove.S. */
@@ -79,12 +81,15 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__memmove_ssse3_back)
IFUNC_IMPL_ADD (array, i, memmove, HAS_CPU_FEATURE (SSSE3),
__memmove_ssse3)
+ IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_erms)
IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_sse2))
/* Support sysdeps/x86_64/multiarch/memset_chk.S. */
IFUNC_IMPL (i, name, __memset_chk,
IFUNC_IMPL_ADD (array, i, __memset_chk, 1,
__memset_chk_sse2)
+ IFUNC_IMPL_ADD (array, i, __memset_chk, 1,
+ __memset_chk_erms)
IFUNC_IMPL_ADD (array, i, __memset_chk,
HAS_ARCH_FEATURE (AVX2_Usable),
__memset_chk_avx2)
@@ -98,6 +103,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/x86_64/multiarch/memset.S. */
IFUNC_IMPL (i, name, memset,
IFUNC_IMPL_ADD (array, i, memset, 1, __memset_sse2)
+ IFUNC_IMPL_ADD (array, i, memset, 1, __memset_erms)
IFUNC_IMPL_ADD (array, i, memset,
HAS_ARCH_FEATURE (AVX2_Usable),
__memset_avx2)
@@ -278,6 +284,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
HAS_CPU_FEATURE (SSSE3),
__memcpy_chk_ssse3)
IFUNC_IMPL_ADD (array, i, __memcpy_chk, 1,
+ __memcpy_chk_erms)
+ IFUNC_IMPL_ADD (array, i, __memcpy_chk, 1,
__memcpy_chk_sse2))
/* Support sysdeps/x86_64/multiarch/memcpy.S. */
@@ -295,6 +303,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__memcpy_avx512_no_vzeroupper)
#endif
IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_sse2_unaligned)
+ IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_erms)
IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_sse2))
/* Support sysdeps/x86_64/multiarch/mempcpy_chk.S. */
@@ -314,6 +323,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
HAS_CPU_FEATURE (SSSE3),
__mempcpy_chk_ssse3)
IFUNC_IMPL_ADD (array, i, __mempcpy_chk, 1,
+ __mempcpy_chk_erms)
+ IFUNC_IMPL_ADD (array, i, __mempcpy_chk, 1,
__mempcpy_chk_sse2))
/* Support sysdeps/x86_64/multiarch/mempcpy.S. */
@@ -330,6 +341,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__mempcpy_ssse3_back)
IFUNC_IMPL_ADD (array, i, mempcpy, HAS_CPU_FEATURE (SSSE3),
__mempcpy_ssse3)
+ IFUNC_IMPL_ADD (array, i, mempcpy, 1, __mempcpy_erms)
IFUNC_IMPL_ADD (array, i, mempcpy, 1, __mempcpy_sse2))
/* Support sysdeps/x86_64/multiarch/strncmp.S. */
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=efae27774340f8988cca33076fc4c3c2e944b995
commit efae27774340f8988cca33076fc4c3c2e944b995
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Wed Sep 21 15:21:28 2011 -0700
Add 32it ERMS memcpy/memset
* sysdeps/i386/i686/multiarch/Makefile (sysdep_routines): Add
bcopy-erms, memcpy-erms, memmove-erms, mempcpy-erms, bzero-erms
and memset-erms.
* sysdeps/i386/i686/multiarch/bcopy-erms.S: New file.
* sysdeps/i386/i686/multiarch/bzero-erms.S: Likewise.
* sysdeps/i386/i686/multiarch/memcpy-erms.S: Likewise.
* sysdeps/i386/i686/multiarch/memmove-erms.S: Likewise.
* sysdeps/i386/i686/multiarch/mempcpy-erms.S: Likewise.
* sysdeps/i386/i686/multiarch/memset-erms.S: Likewise.
* sysdeps/i386/i686/multiarch/ifunc-defines.sym: Add
COMMON_CPUID_INDEX_7.
* sysdeps/i386/i686/multiarch/bcopy.S: Enable ERMS optimization
for Fast_ERMS.
* sysdeps/i386/i686/multiarch/bzero.S: Likewise.
* sysdeps/i386/i686/multiarch/memcpy.S: Likewise.
* sysdeps/i386/i686/multiarch/memcpy_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/memmove.S: Likewise.
* sysdeps/i386/i686/multiarch/memmove_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/mempcpy.S: Likewise.
* sysdeps/i386/i686/multiarch/mempcpy_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/memset.S: Likewise.
* sysdeps/i386/i686/multiarch/memset_chk.S: Likewise.
diff --git a/sysdeps/i386/i686/multiarch/Makefile b/sysdeps/i386/i686/multiarch/Makefile
index 700010d..6bcef4c 100644
--- a/sysdeps/i386/i686/multiarch/Makefile
+++ b/sysdeps/i386/i686/multiarch/Makefile
@@ -25,7 +25,9 @@ sysdep_routines += bzero-sse2 memset-sse2 memcpy-ssse3 mempcpy-ssse3 \
strcasecmp_l-sse4 strncase_l-sse4 \
bcopy-sse2-unaligned memcpy-sse2-unaligned \
mempcpy-sse2-unaligned memmove-sse2-unaligned \
- strcspn-c strpbrk-c strspn-c
+ strcspn-c strpbrk-c strspn-c \
+ bcopy-erms memcpy-erms memmove-erms mempcpy-erms \
+ bzero-erms memset-erms
CFLAGS-varshift.c += -msse4
CFLAGS-strcspn-c.c += -msse4
CFLAGS-strpbrk-c.c += -msse4
diff --git a/sysdeps/i386/i686/multiarch/bcopy-erms.S b/sysdeps/i386/i686/multiarch/bcopy-erms.S
new file mode 100644
index 0000000..da9e160
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/bcopy-erms.S
@@ -0,0 +1,4 @@
+#define USE_AS_MEMMOVE
+#define USE_AS_BCOPY
+#define MEMCPY __bcopy_erms
+#include "memcpy-erms.S"
diff --git a/sysdeps/i386/i686/multiarch/bcopy.S b/sysdeps/i386/i686/multiarch/bcopy.S
index ce6661b..04f5a3a 100644
--- a/sysdeps/i386/i686/multiarch/bcopy.S
+++ b/sysdeps/i386/i686/multiarch/bcopy.S
@@ -27,6 +27,9 @@
ENTRY(bcopy)
.type bcopy, @gnu_indirect_function
LOAD_GOT_AND_RTLD_GLOBAL_RO
+ LOAD_FUNC_GOT_EAX (__bcopy_erms)
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ jnz 2f
LOAD_FUNC_GOT_EAX (__bcopy_ia32)
HAS_CPU_FEATURE (SSE2)
jz 2f
diff --git a/sysdeps/i386/i686/multiarch/bzero-erms.S b/sysdeps/i386/i686/multiarch/bzero-erms.S
new file mode 100644
index 0000000..2c3bed6
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/bzero-erms.S
@@ -0,0 +1,3 @@
+#define USE_AS_BZERO
+#define __memset_erms __bzero_erms
+#include "memset-erms.S"
diff --git a/sysdeps/i386/i686/multiarch/bzero.S b/sysdeps/i386/i686/multiarch/bzero.S
index 738ca69..a61b5d2 100644
--- a/sysdeps/i386/i686/multiarch/bzero.S
+++ b/sysdeps/i386/i686/multiarch/bzero.S
@@ -27,6 +27,9 @@
ENTRY(__bzero)
.type __bzero, @gnu_indirect_function
LOAD_GOT_AND_RTLD_GLOBAL_RO
+ LOAD_FUNC_GOT_EAX (__bzero_erms)
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ jnz 2f
LOAD_FUNC_GOT_EAX (__bzero_ia32)
HAS_CPU_FEATURE (SSE2)
jz 2f
diff --git a/sysdeps/i386/i686/multiarch/ifunc-defines.sym b/sysdeps/i386/i686/multiarch/ifunc-defines.sym
index 96e9cfa..3df946f 100644
--- a/sysdeps/i386/i686/multiarch/ifunc-defines.sym
+++ b/sysdeps/i386/i686/multiarch/ifunc-defines.sym
@@ -16,4 +16,5 @@ FEATURE_OFFSET offsetof (struct cpu_features, feature)
FEATURE_SIZE sizeof (unsigned int)
COMMON_CPUID_INDEX_1
+COMMON_CPUID_INDEX_7
FEATURE_INDEX_1
diff --git a/sysdeps/i386/i686/multiarch/memcpy-erms.S b/sysdeps/i386/i686/multiarch/memcpy-erms.S
new file mode 100644
index 0000000..df0c801
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/memcpy-erms.S
@@ -0,0 +1,100 @@
+/* memcpy with Enhanced REP MOVSB/STOSB
+ Copyright (C) 2014 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+
+#if !defined NOT_IN_libc \
+ && (defined SHARED \
+ || defined USE_AS_MEMMOVE \
+ || !defined USE_MULTIARCH)
+
+#include "asm-syntax.h"
+
+#ifndef MEMCPY
+# define MEMCPY __memcpy_erms
+# define MEMCPY_CHK __memcpy_chk_erms
+#endif
+
+#ifdef USE_AS_BCOPY
+# define STR2 12
+# define STR1 STR2+4
+# define N STR1+4
+#else
+# define STR1 12
+# define STR2 STR1+4
+# define N STR2+4
+#endif
+
+#define CFI_PUSH(REG) \
+ cfi_adjust_cfa_offset (4); \
+ cfi_rel_offset (REG, 0)
+
+#define CFI_POP(REG) \
+ cfi_adjust_cfa_offset (-4); \
+ cfi_restore (REG)
+
+#define PUSH(REG) pushl REG; CFI_PUSH (REG)
+#define POP(REG) popl REG; CFI_POP (REG)
+
+ .section .text.erms,"ax",@progbits
+#if !defined USE_AS_BCOPY
+ENTRY (MEMCPY_CHK)
+ movl 12(%esp), %eax
+ cmpl %eax, 16(%esp)
+ jb HIDDEN_JUMPTARGET (__chk_fail)
+END (MEMCPY_CHK)
+#endif
+ENTRY (MEMCPY)
+ PUSH (%esi)
+ PUSH (%edi)
+ movl N(%esp), %ecx
+ movl STR1(%esp), %edi
+ movl STR2(%esp), %esi
+ mov %edi, %eax
+#ifdef USE_AS_MEMPCPY
+ add %ecx, %eax
+#endif
+
+#ifdef USE_AS_MEMMOVE
+ cmp %esi, %edi
+ ja L(copy_backward)
+ je L(bwd_write_0bytes)
+#endif
+
+ rep movsb
+ POP (%edi)
+ POP (%esi)
+ ret
+
+#ifdef USE_AS_MEMMOVE
+L(copy_backward):
+ lea -1(%edi,%ecx), %edi
+ lea -1(%esi,%ecx), %esi
+ std
+ rep movsb
+ cld
+L(bwd_write_0bytes):
+ POP (%edi)
+ POP (%esi)
+ ret
+#endif
+
+END (MEMCPY)
+
+#endif
diff --git a/sysdeps/i386/i686/multiarch/memcpy.S b/sysdeps/i386/i686/multiarch/memcpy.S
index 652b5a2..79ae41f 100644
--- a/sysdeps/i386/i686/multiarch/memcpy.S
+++ b/sysdeps/i386/i686/multiarch/memcpy.S
@@ -29,6 +29,9 @@
ENTRY(memcpy)
.type memcpy, @gnu_indirect_function
LOAD_GOT_AND_RTLD_GLOBAL_RO
+ LOAD_FUNC_GOT_EAX (__memcpy_erms)
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ jnz 2f
LOAD_FUNC_GOT_EAX (__memcpy_ia32)
HAS_CPU_FEATURE (SSE2)
jz 2f
diff --git a/sysdeps/i386/i686/multiarch/memcpy_chk.S b/sysdeps/i386/i686/multiarch/memcpy_chk.S
index 0eee32c..dd1d38a 100644
--- a/sysdeps/i386/i686/multiarch/memcpy_chk.S
+++ b/sysdeps/i386/i686/multiarch/memcpy_chk.S
@@ -30,6 +30,9 @@
ENTRY(__memcpy_chk)
.type __memcpy_chk, @gnu_indirect_function
LOAD_GOT_AND_RTLD_GLOBAL_RO
+ LOAD_FUNC_GOT_EAX (__memcpy_chk_erms)
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ jnz 2f
LOAD_FUNC_GOT_EAX (__memcpy_chk_ia32)
HAS_CPU_FEATURE (SSE2)
jz 2f
diff --git a/sysdeps/i386/i686/multiarch/memmove-erms.S b/sysdeps/i386/i686/multiarch/memmove-erms.S
new file mode 100644
index 0000000..357289a
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/memmove-erms.S
@@ -0,0 +1,4 @@
+#define USE_AS_MEMMOVE
+#define MEMCPY __memmove_erms
+#define MEMCPY_CHK __memmove_chk_erms
+#include "memcpy-erms.S"
diff --git a/sysdeps/i386/i686/multiarch/memmove.S b/sysdeps/i386/i686/multiarch/memmove.S
index 725a421..13223b3 100644
--- a/sysdeps/i386/i686/multiarch/memmove.S
+++ b/sysdeps/i386/i686/multiarch/memmove.S
@@ -27,6 +27,9 @@
ENTRY(memmove)
.type memmove, @gnu_indirect_function
LOAD_GOT_AND_RTLD_GLOBAL_RO
+ LOAD_FUNC_GOT_EAX (__memmove_erms)
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ jnz 2f
LOAD_FUNC_GOT_EAX (__memmove_ia32)
HAS_CPU_FEATURE (SSE2)
jz 2f
diff --git a/sysdeps/i386/i686/multiarch/memmove_chk.S b/sysdeps/i386/i686/multiarch/memmove_chk.S
index a29bbc9..ed000ee 100644
--- a/sysdeps/i386/i686/multiarch/memmove_chk.S
+++ b/sysdeps/i386/i686/multiarch/memmove_chk.S
@@ -27,6 +27,9 @@
ENTRY(__memmove_chk)
.type __memmove_chk, @gnu_indirect_function
LOAD_GOT_AND_RTLD_GLOBAL_RO
+ LOAD_FUNC_GOT_EAX (__memmove_chk_erms)
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ jnz 2f
LOAD_FUNC_GOT_EAX (__memmove_chk_ia32)
HAS_CPU_FEATURE (SSE2)
jz 2f
@@ -90,5 +93,17 @@ __memmove_chk_ia32:
jmp __memmove_ia32
cfi_endproc
.size __memmove_chk_ia32, .-__memmove_chk_ia32
+
+ .type __memmove_chk_erms, @function
+ .p2align 4;
+__memmove_chk_erms:
+ cfi_startproc
+ CALL_MCOUNT
+ movl 12(%esp), %eax
+ cmpl %eax, 16(%esp)
+ jb __chk_fail
+ jmp __memmove_erms
+ cfi_endproc
+ .size __memmove_chk_erms, .-__memmove_chk_erms
# endif
#endif
diff --git a/sysdeps/i386/i686/multiarch/mempcpy-erms.S b/sysdeps/i386/i686/multiarch/mempcpy-erms.S
new file mode 100644
index 0000000..01d3bf8
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/mempcpy-erms.S
@@ -0,0 +1,4 @@
+#define USE_AS_MEMPCPY
+#define MEMCPY __mempcpy_erms
+#define MEMCPY_CHK __mempcpy_chk_erms
+#include "memcpy-erms.S"
diff --git a/sysdeps/i386/i686/multiarch/mempcpy.S b/sysdeps/i386/i686/multiarch/mempcpy.S
index b46f3fc..cceae9b 100644
--- a/sysdeps/i386/i686/multiarch/mempcpy.S
+++ b/sysdeps/i386/i686/multiarch/mempcpy.S
@@ -29,6 +29,9 @@
ENTRY(__mempcpy)
.type __mempcpy, @gnu_indirect_function
LOAD_GOT_AND_RTLD_GLOBAL_RO
+ LOAD_FUNC_GOT_EAX (__mempcpy_erms)
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ jnz 2f
LOAD_FUNC_GOT_EAX (__mempcpy_ia32)
HAS_CPU_FEATURE (SSE2)
jz 2f
diff --git a/sysdeps/i386/i686/multiarch/mempcpy_chk.S b/sysdeps/i386/i686/multiarch/mempcpy_chk.S
index 30f3629..97d5179 100644
--- a/sysdeps/i386/i686/multiarch/mempcpy_chk.S
+++ b/sysdeps/i386/i686/multiarch/mempcpy_chk.S
@@ -30,6 +30,9 @@
ENTRY(__mempcpy_chk)
.type __mempcpy_chk, @gnu_indirect_function
LOAD_GOT_AND_RTLD_GLOBAL_RO
+ LOAD_FUNC_GOT_EAX (__mempcpy_chk_erms)
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ jnz 2f
LOAD_FUNC_GOT_EAX (__mempcpy_chk_ia32)
HAS_CPU_FEATURE (SSE2)
jz 2f
diff --git a/sysdeps/i386/i686/multiarch/memset-erms.S b/sysdeps/i386/i686/multiarch/memset-erms.S
new file mode 100644
index 0000000..807a6e4
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/memset-erms.S
@@ -0,0 +1,69 @@
+/* memset with Enhanced REP MOVSB/STOSB
+ Copyright (C) 2014 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef NOT_IN_libc
+
+#include <sysdep.h>
+
+#define CFI_PUSH(REG) \
+ cfi_adjust_cfa_offset (4); \
+ cfi_rel_offset (REG, 0)
+
+#define CFI_POP(REG) \
+ cfi_adjust_cfa_offset (-4); \
+ cfi_restore (REG)
+
+#define PUSH(REG) pushl REG; CFI_PUSH (REG)
+#define POP(REG) popl REG; CFI_POP (REG)
+
+#define STR1 8
+#ifdef USE_AS_BZERO
+#define N STR1+4
+#else
+#define STR2 STR1+4
+#define N STR2+4
+#endif
+
+ .section .text.erms,"ax",@progbits
+#if defined SHARED && !defined NOT_IN_libc && !defined USE_AS_BZERO
+ENTRY (__memset_chk_erms)
+ movl 12(%esp), %eax
+ cmpl %eax, 16(%esp)
+ jb HIDDEN_JUMPTARGET (__chk_fail)
+END (__memset_chk_erms)
+#endif
+ENTRY (__memset_erms)
+ PUSH (%edi)
+ movl N(%esp), %ecx
+ movl STR1(%esp), %edi
+#ifdef USE_AS_BZERO
+ xor %eax, %eax
+#else
+ movzbl STR2(%esp), %eax
+ mov %edi, %edx
+#endif
+ rep stosb
+#ifndef USE_AS_BZERO
+ mov %edx, %eax
+#endif
+ POP (%edi)
+ ret
+END (__memset_erms)
+
+#endif
diff --git a/sysdeps/i386/i686/multiarch/memset.S b/sysdeps/i386/i686/multiarch/memset.S
index 14180e4..3c11b91 100644
--- a/sysdeps/i386/i686/multiarch/memset.S
+++ b/sysdeps/i386/i686/multiarch/memset.S
@@ -27,6 +27,9 @@
ENTRY(memset)
.type memset, @gnu_indirect_function
LOAD_GOT_AND_RTLD_GLOBAL_RO
+ LOAD_FUNC_GOT_EAX (__memset_erms)
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ jnz 2f
LOAD_FUNC_GOT_EAX (__memset_ia32)
HAS_CPU_FEATURE (SSE2)
jz 2f
diff --git a/sysdeps/i386/i686/multiarch/memset_chk.S b/sysdeps/i386/i686/multiarch/memset_chk.S
index d73f202..fa1c5fb 100644
--- a/sysdeps/i386/i686/multiarch/memset_chk.S
+++ b/sysdeps/i386/i686/multiarch/memset_chk.S
@@ -27,6 +27,9 @@
ENTRY(__memset_chk)
.type __memset_chk, @gnu_indirect_function
LOAD_GOT_AND_RTLD_GLOBAL_RO
+ LOAD_FUNC_GOT_EAX (__memset_chk_erms)
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ jnz 2f
LOAD_FUNC_GOT_EAX (__memset_chk_ia32)
HAS_CPU_FEATURE (SSE2)
jz 2f
@@ -78,5 +81,17 @@ __memset_chk_ia32:
jmp __memset_ia32
cfi_endproc
.size __memset_chk_ia32, .-__memset_chk_ia32
+
+ .type __memset_chk_erms, @function
+ .p2align 4;
+__memset_chk_erms:
+ cfi_startproc
+ CALL_MCOUNT
+ movl 12(%esp), %eax
+ cmpl %eax, 16(%esp)
+ jb __chk_fail
+ jmp __memset_erms
+ cfi_endproc
+ .size __memset_chk_erms, .-__memset_chk_erms
# endif
#endif
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=4a6249c693579ec7bdc9b3ce05b23fd464728eca
commit 4a6249c693579ec7bdc9b3ce05b23fd464728eca
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 15 16:16:10 2011 -0700
Add 64-bit ERMS memcpy and memset
* sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add
memcpy-erms, mempcpy-erms, memmove-erms and memset-erms.
* sysdeps/x86_64/multiarch/memcpy-erms.S: New.
* sysdeps/x86_64/multiarch/memmove-erms.S: Likewise.
* sysdeps/x86_64/multiarch/mempcpy-erms.S: Likewise.
* sysdeps/x86_64/multiarch/memset-erms.S: Likewise.
* sysdeps/x86_64/multiarch/memcpy.S: Enable ERMS optimization
for Fast_ERMS.
* sysdeps/x86_64/multiarch/memcpy_chk.S: Likewise.
* sysdeps/x86_64/multiarch/memmove.c: Likewise.
* sysdeps/x86_64/multiarch/memmove_chk.c: Likewise.
* sysdeps/x86_64/multiarch/mempcpy.S: Likewise.
* sysdeps/x86_64/multiarch/mempcpy_chk.S: Likewise.
* sysdeps/x86_64/multiarch/memset.S: Likewise.
* sysdeps/x86_64/multiarch/memset_chk.S: Likewise.
diff --git a/sysdeps/x86_64/multiarch/Makefile b/sysdeps/x86_64/multiarch/Makefile
index d234f4a..2f29a2a 100644
--- a/sysdeps/x86_64/multiarch/Makefile
+++ b/sysdeps/x86_64/multiarch/Makefile
@@ -20,7 +20,9 @@ sysdep_routines += strncat-c stpncpy-c strncpy-c strcmp-ssse3 \
strcat-sse2-unaligned strncat-sse2-unaligned \
strchr-sse2-no-bsf memcmp-ssse3 strstr-sse2-unaligned \
strcspn-c strpbrk-c strspn-c varshift memset-avx2 \
- memset-avx512-no-vzeroupper
+ memset-avx512-no-vzeroupper \
+ memcpy-erms mempcpy-erms memmove-erms \
+ memset-erms
CFLAGS-varshift.c += -msse4
CFLAGS-strcspn-c.c += -msse4
CFLAGS-strpbrk-c.c += -msse4
diff --git a/sysdeps/x86_64/multiarch/memcpy-erms.S b/sysdeps/x86_64/multiarch/memcpy-erms.S
new file mode 100644
index 0000000..f0595d6
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/memcpy-erms.S
@@ -0,0 +1,71 @@
+/* memcpy with Enhanced REP MOVSB/STOSB
+ Copyright (C) 2014 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+
+#if !defined NOT_IN_libc \
+ && (defined SHARED \
+ || defined USE_AS_MEMMOVE \
+ || !defined USE_MULTIARCH)
+
+# include "asm-syntax.h"
+
+# ifndef MEMCPY
+# define MEMCPY __memcpy_erms
+# define MEMCPY_CHK __memcpy_chk_erms
+# endif
+
+ .section .text.erms,"ax",@progbits
+# if !defined USE_AS_BCOPY
+ENTRY (MEMCPY_CHK)
+ cmpq %rdx, %rcx
+ jb HIDDEN_JUMPTARGET (__chk_fail)
+END (MEMCPY_CHK)
+# endif
+
+ENTRY (MEMCPY)
+ mov %rdi, %rax
+ mov %rdx, %rcx
+# ifdef USE_AS_MEMPCPY
+ add %rdx, %rax
+# endif
+
+# ifdef USE_AS_MEMMOVE
+ cmp %rsi, %rdi
+ ja L(copy_backward)
+ je L(bwd_write_0bytes)
+# endif
+
+ rep movsb
+ ret
+
+# ifdef USE_AS_MEMMOVE
+L(copy_backward):
+ lea -1(%rdi,%rdx), %rdi
+ lea -1(%rsi,%rdx), %rsi
+ std
+ rep movsb
+ cld
+L(bwd_write_0bytes):
+ ret
+# endif
+
+END (MEMCPY)
+
+#endif
diff --git a/sysdeps/x86_64/multiarch/memcpy.S b/sysdeps/x86_64/multiarch/memcpy.S
index 8882590..58d9223 100644
--- a/sysdeps/x86_64/multiarch/memcpy.S
+++ b/sysdeps/x86_64/multiarch/memcpy.S
@@ -30,6 +30,9 @@
ENTRY(__new_memcpy)
.type __new_memcpy, @gnu_indirect_function
LOAD_RTLD_GLOBAL_RO_RDX
+ lea __memcpy_erms(%rip), %RAX_LP
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ jnz 2f
#ifdef HAVE_AVX512_ASM_SUPPORT
HAS_ARCH_FEATURE (AVX512F_Usable)
jz 1f
diff --git a/sysdeps/x86_64/multiarch/memcpy_chk.S b/sysdeps/x86_64/multiarch/memcpy_chk.S
index 648217e..0e21c09 100644
--- a/sysdeps/x86_64/multiarch/memcpy_chk.S
+++ b/sysdeps/x86_64/multiarch/memcpy_chk.S
@@ -30,6 +30,9 @@
ENTRY(__memcpy_chk)
.type __memcpy_chk, @gnu_indirect_function
LOAD_RTLD_GLOBAL_RO_RDX
+ leaq __memcpy_chk_erms(%rip), %rax
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ jnz 2f
#ifdef HAVE_AVX512_ASM_SUPPORT
HAS_ARCH_FEATURE (AVX512F_Usable)
jz 1f
diff --git a/sysdeps/x86_64/multiarch/memmove-erms.S b/sysdeps/x86_64/multiarch/memmove-erms.S
new file mode 100644
index 0000000..357289a
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/memmove-erms.S
@@ -0,0 +1,4 @@
+#define USE_AS_MEMMOVE
+#define MEMCPY __memmove_erms
+#define MEMCPY_CHK __memmove_chk_erms
+#include "memcpy-erms.S"
diff --git a/sysdeps/x86_64/multiarch/memmove.c b/sysdeps/x86_64/multiarch/memmove.c
index 8da5640..3777bea 100644
--- a/sysdeps/x86_64/multiarch/memmove.c
+++ b/sysdeps/x86_64/multiarch/memmove.c
@@ -35,6 +35,7 @@
extern __typeof (__redirect_memmove) __memmove_sse2 attribute_hidden;
extern __typeof (__redirect_memmove) __memmove_ssse3 attribute_hidden;
extern __typeof (__redirect_memmove) __memmove_ssse3_back attribute_hidden;
+extern __typeof (__redirect_memmove) __memmove_erms attribute_hidden;
extern __typeof (__redirect_memmove) __memmove_avx_unaligned attribute_hidden;
# ifdef HAVE_AVX512_ASM_SUPPORT
extern __typeof (__redirect_memmove) __memmove_avx512_no_vzeroupper attribute_hidden;
@@ -52,6 +53,9 @@ extern __typeof (__redirect_memmove) __memmove_avx_unaligned attribute_hidden;
ifunc symbol properly. */
extern __typeof (__redirect_memmove) __libc_memmove;
libc_ifunc (__libc_memmove,
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ ? __memmove_erms
+ : (
#ifdef HAVE_AVX512_ASM_SUPPORT
HAS_ARCH_FEATURE (AVX512F_Usable)
&& HAS_ARCH_FEATURE (Prefer_No_VZEROUPPER)
@@ -63,7 +67,7 @@ libc_ifunc (__libc_memmove,
: (HAS_CPU_FEATURE (SSSE3)
? (HAS_ARCH_FEATURE (Fast_Copy_Backward)
? __memmove_ssse3_back : __memmove_ssse3)
- : __memmove_sse2)));
+ : __memmove_sse2))));
strong_alias (__libc_memmove, memmove)
diff --git a/sysdeps/x86_64/multiarch/memmove_chk.c b/sysdeps/x86_64/multiarch/memmove_chk.c
index f64da63..4cd360a 100644
--- a/sysdeps/x86_64/multiarch/memmove_chk.c
+++ b/sysdeps/x86_64/multiarch/memmove_chk.c
@@ -25,6 +25,7 @@
extern __typeof (__memmove_chk) __memmove_chk_sse2 attribute_hidden;
extern __typeof (__memmove_chk) __memmove_chk_ssse3 attribute_hidden;
extern __typeof (__memmove_chk) __memmove_chk_ssse3_back attribute_hidden;
+extern __typeof (__memmove_chk) __memmove_chk_erms attribute_hidden;
extern __typeof (__memmove_chk) __memmove_chk_avx_unaligned attribute_hidden;
# ifdef HAVE_AVX512_ASM_SUPPORT
extern __typeof (__memmove_chk) __memmove_chk_avx512_no_vzeroupper attribute_hidden;
@@ -33,6 +34,9 @@ extern __typeof (__memmove_chk) __memmove_chk_avx_unaligned attribute_hidden;
#include "debug/memmove_chk.c"
libc_ifunc (__memmove_chk,
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ ? __memmove_chk_erms
+ : (
#ifdef HAVE_AVX512_ASM_SUPPORT
HAS_ARCH_FEATURE (AVX512F_Usable)
&& HAS_ARCH_FEATURE (Prefer_No_VZEROUPPER)
@@ -43,4 +47,4 @@ libc_ifunc (__memmove_chk,
(HAS_CPU_FEATURE (SSSE3)
? (HAS_ARCH_FEATURE (Fast_Copy_Backward)
? __memmove_chk_ssse3_back : __memmove_chk_ssse3)
- : __memmove_chk_sse2));
+ : __memmove_chk_sse2)));
diff --git a/sysdeps/x86_64/multiarch/mempcpy-erms.S b/sysdeps/x86_64/multiarch/mempcpy-erms.S
new file mode 100644
index 0000000..01d3bf8
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/mempcpy-erms.S
@@ -0,0 +1,4 @@
+#define USE_AS_MEMPCPY
+#define MEMCPY __mempcpy_erms
+#define MEMCPY_CHK __mempcpy_chk_erms
+#include "memcpy-erms.S"
diff --git a/sysdeps/x86_64/multiarch/mempcpy.S b/sysdeps/x86_64/multiarch/mempcpy.S
index ed78623..b85cf27 100644
--- a/sysdeps/x86_64/multiarch/mempcpy.S
+++ b/sysdeps/x86_64/multiarch/mempcpy.S
@@ -28,6 +28,9 @@
ENTRY(__mempcpy)
.type __mempcpy, @gnu_indirect_function
LOAD_RTLD_GLOBAL_RO_RDX
+ leaq __mempcpy_erms(%rip), %rax
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ jnz 2f
#ifdef HAVE_AVX512_ASM_SUPPORT
HAS_ARCH_FEATURE (AVX512F_Usable)
jz 1f
diff --git a/sysdeps/x86_64/multiarch/mempcpy_chk.S b/sysdeps/x86_64/multiarch/mempcpy_chk.S
index 6e8a89d..de888f3 100644
--- a/sysdeps/x86_64/multiarch/mempcpy_chk.S
+++ b/sysdeps/x86_64/multiarch/mempcpy_chk.S
@@ -30,6 +30,9 @@
ENTRY(__mempcpy_chk)
.type __mempcpy_chk, @gnu_indirect_function
LOAD_RTLD_GLOBAL_RO_RDX
+ leaq __mempcpy_chk_erms(%rip), %rax
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ jnz 2f
#ifdef HAVE_AVX512_ASM_SUPPORT
HAS_ARCH_FEATURE (AVX512F_Usable)
jz 1f
diff --git a/sysdeps/x86_64/multiarch/memset-erms.S b/sysdeps/x86_64/multiarch/memset-erms.S
new file mode 100644
index 0000000..af9f80b
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/memset-erms.S
@@ -0,0 +1,40 @@
+/* memset with Enhanced REP MOVSB/STOSB
+ Copyright (C) 2014 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+
+#ifndef NOT_IN_libc
+
+ .text
+# ifdef SHARED
+ENTRY (__memset_chk_erms)
+ cmpq %rdx, %rcx
+ jb HIDDEN_JUMPTARGET (__chk_fail)
+END (__memset_chk_erms)
+# endif
+
+ENTRY (__memset_erms)
+ mov %rdx, %rcx
+ movzbl %sil, %eax
+ mov %rdi, %rdx
+ rep stosb
+ mov %rdx, %rax
+ ret
+END (__memset_erms)
+#endif
diff --git a/sysdeps/x86_64/multiarch/memset.S b/sysdeps/x86_64/multiarch/memset.S
index 8e3b9b9..dda8185 100644
--- a/sysdeps/x86_64/multiarch/memset.S
+++ b/sysdeps/x86_64/multiarch/memset.S
@@ -26,6 +26,9 @@
ENTRY(memset)
.type memset, @gnu_indirect_function
LOAD_RTLD_GLOBAL_RO_RDX
+ leaq __memset_erms(%rip), %rax
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ jnz 2f
leaq __memset_sse2(%rip), %rax
HAS_ARCH_FEATURE (AVX2_Usable)
jz 2f
diff --git a/sysdeps/x86_64/multiarch/memset_chk.S b/sysdeps/x86_64/multiarch/memset_chk.S
index 9a7b270..b8c9940 100644
--- a/sysdeps/x86_64/multiarch/memset_chk.S
+++ b/sysdeps/x86_64/multiarch/memset_chk.S
@@ -26,6 +26,9 @@
ENTRY(__memset_chk)
.type __memset_chk, @gnu_indirect_function
LOAD_RTLD_GLOBAL_RO_RDX
+ leaq __memset_chk_erms(%rip), %rax
+ HAS_ARCH_FEATURE (Fast_ERMS)
+ jnz 2f
leaq __memset_chk_sse2(%rip), %rax
HAS_ARCH_FEATURE (AVX2_Usable)
jz 2f
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=63d945f4ae4c0588b66551bb6acffd1816a971f3
commit 63d945f4ae4c0588b66551bb6acffd1816a971f3
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 15 15:47:01 2011 -0700
Initial ERMS support
* sysdeps/x86/cpu-features.h (bit_arch_Fast_ERMS): New.
(bit_cpu_ERMS): Likewise.
(index_cpu_ERMS): Likewise.
(index_arch_Fast_ERMS): Likewise.
(reg_ERMS): Likewise.
diff --git a/sysdeps/x86/cpu-features.h b/sysdeps/x86/cpu-features.h
index 0624a92..e099e30 100644
--- a/sysdeps/x86/cpu-features.h
+++ b/sysdeps/x86/cpu-features.h
@@ -35,6 +35,7 @@
#define bit_arch_I686 (1 << 15)
#define bit_arch_Prefer_MAP_32BIT_EXEC (1 << 16)
#define bit_arch_Prefer_No_VZEROUPPER (1 << 17)
+#define bit_arch_Fast_ERMS (1 << 18)
/* CPUID Feature flags. */
@@ -52,6 +53,7 @@
#define bit_cpu_FMA4 (1 << 16)
/* COMMON_CPUID_INDEX_7. */
+#define bit_cpu_ERMS (1 << 9)
#define bit_cpu_RTM (1 << 11)
#define bit_cpu_AVX2 (1 << 5)
#define bit_cpu_AVX512F (1 << 16)
@@ -83,6 +85,7 @@
# define index_cpu_SSE4_2 COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_ECX_OFFSET
# define index_cpu_AVX COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_ECX_OFFSET
# define index_cpu_AVX2 COMMON_CPUID_INDEX_7*CPUID_SIZE+CPUID_EBX_OFFSET
+# define index_cpu_ERMS COMMON_CPUID_INDEX_7*CPUID_SIZE+CPUID_EBX_OFFSET
# define index_arch_Fast_Rep_String FEATURE_INDEX_1*FEATURE_SIZE
# define index_arch_Fast_Copy_Backward FEATURE_INDEX_1*FEATURE_SIZE
@@ -101,6 +104,7 @@
# define index_arch_I686 FEATURE_INDEX_1*FEATURE_SIZE
# define index_arch_Prefer_MAP_32BIT_EXEC FEATURE_INDEX_1*FEATURE_SIZE
# define index_arch_Prefer_No_VZEROUPPER FEATURE_INDEX_1*FEATURE_SIZE
+# define index_arch_Fast_ERMS FEATURE_INDEX_1*FEATURE_SIZE
# if defined (_LIBC) && !IS_IN (nonlib)
@@ -220,6 +224,7 @@ extern const struct cpu_features *__get_cpu_features (void)
# define index_cpu_AVX2 COMMON_CPUID_INDEX_7
# define index_cpu_AVX512F COMMON_CPUID_INDEX_7
# define index_cpu_AVX512DQ COMMON_CPUID_INDEX_7
+# define index_cpu_ERMS COMMON_CPUID_INDEX_7
# define index_cpu_RTM COMMON_CPUID_INDEX_7
# define index_cpu_FMA COMMON_CPUID_INDEX_1
# define index_cpu_FMA4 COMMON_CPUID_INDEX_80000001
@@ -236,6 +241,7 @@ extern const struct cpu_features *__get_cpu_features (void)
# define reg_AVX2 ebx
# define reg_AVX512F ebx
# define reg_AVX512DQ ebx
+# define reg_ERMS ebx
# define reg_RTM ebx
# define reg_FMA ecx
# define reg_FMA4 ecx
@@ -259,6 +265,7 @@ extern const struct cpu_features *__get_cpu_features (void)
# define index_arch_I686 FEATURE_INDEX_1
# define index_arch_Prefer_MAP_32BIT_EXEC FEATURE_INDEX_1
# define index_arch_Prefer_No_VZEROUPPER FEATURE_INDEX_1
+# define index_arch_Fast_ERMS FEATURE_INDEX_1
#endif /* !__ASSEMBLER__ */
-----------------------------------------------------------------------
hooks/post-receive
--
GNU C Library master sources