[glibc] - Upstream patch to fix AVX testing (#801650)

Jeffrey Law law at fedoraproject.org
Fri May 11 21:49:54 UTC 2012


commit d2e0d47266920c219b4ddefc8e3e132974fbb5e9
Author: Jeff Law <law at redhat.com>
Date:   Fri May 11 15:49:43 2012 -0600

      - Upstream patch to fix AVX testing (#801650)

 glibc-rh801650-1.patch |   63 ------------
 glibc-rh801650-2.patch |  200 --------------------------------------
 glibc-rh801650-3.patch |   12 ---
 glibc-rh801650.patch   |  253 ++++++++++++++++++++++++++++++++++++++++++++++++
 glibc.spec             |   13 +--
 5 files changed, 259 insertions(+), 282 deletions(-)
---
diff --git a/glibc-rh801650.patch b/glibc-rh801650.patch
new file mode 100644
index 0000000..d3c8c60
--- /dev/null
+++ b/glibc-rh801650.patch
@@ -0,0 +1,253 @@
+diff -rup c/sysdeps/x86_64/fpu/multiarch/e_log.c d/sysdeps/x86_64/fpu/multiarch/e_log.c
+--- c/sysdeps/x86_64/fpu/multiarch/e_log.c	2012-01-01 05:16:32.000000000 -0700
++++ d/sysdeps/x86_64/fpu/multiarch/e_log.c	2012-05-11 12:53:39.491061476 -0600
+@@ -14,8 +14,7 @@ extern double __ieee754_log_fma4 (double
+ 
+ libm_ifunc (__ieee754_log,
+ 	    HAS_FMA4 ? __ieee754_log_fma4
+-	    : (HAS_AVX ? __ieee754_log_avx
+-	       : __ieee754_log_sse2));
++	    : (HAS_AVX ? __ieee754_log_avx : __ieee754_log_sse2));
+ strong_alias (__ieee754_log, __log_finite)
+ 
+ # define __ieee754_log __ieee754_log_sse2
+diff -rup c/sysdeps/x86_64/fpu/multiarch/s_atan.c d/sysdeps/x86_64/fpu/multiarch/s_atan.c
+--- c/sysdeps/x86_64/fpu/multiarch/s_atan.c	2012-01-01 05:16:32.000000000 -0700
++++ d/sysdeps/x86_64/fpu/multiarch/s_atan.c	2012-05-11 12:53:39.491061476 -0600
+@@ -12,7 +12,8 @@ extern double __atan_fma4 (double);
+ #  define __atan_fma4 ((void *) 0)
+ # endif
+ 
+-libm_ifunc (atan, HAS_FMA4 ? __atan_fma4 : HAS_AVX ? __atan_avx : __atan_sse2);
++libm_ifunc (atan, (HAS_FMA4 ? __atan_fma4 :
++		   HAS_AVX ? __atan_avx : __atan_sse2));
+ 
+ # define atan __atan_sse2
+ #endif
+diff -rup c/sysdeps/x86_64/fpu/multiarch/s_sin.c d/sysdeps/x86_64/fpu/multiarch/s_sin.c
+--- c/sysdeps/x86_64/fpu/multiarch/s_sin.c	2012-01-01 05:16:32.000000000 -0700
++++ d/sysdeps/x86_64/fpu/multiarch/s_sin.c	2012-05-11 12:53:39.491061476 -0600
+@@ -17,10 +17,12 @@ extern double __sin_fma4 (double);
+ #  define __sin_fma4 ((void *) 0)
+ # endif
+ 
+-libm_ifunc (__cos, HAS_FMA4 ? __cos_fma4 : HAS_AVX ? __cos_avx : __cos_sse2);
++libm_ifunc (__cos, (HAS_FMA4 ? __cos_fma4 :
++		    HAS_AVX ? __cos_avx : __cos_sse2));
+ weak_alias (__cos, cos)
+ 
+-libm_ifunc (__sin, HAS_FMA4 ? __sin_fma4 : HAS_AVX ? __sin_avx : __sin_sse2);
++libm_ifunc (__sin, (HAS_FMA4 ? __sin_fma4 :
++		    HAS_AVX ? __sin_avx : __sin_sse2));
+ weak_alias (__sin, sin)
+ 
+ # define __cos __cos_sse2
+diff -rup c/sysdeps/x86_64/fpu/multiarch/s_tan.c d/sysdeps/x86_64/fpu/multiarch/s_tan.c
+--- c/sysdeps/x86_64/fpu/multiarch/s_tan.c	2012-01-01 05:16:32.000000000 -0700
++++ d/sysdeps/x86_64/fpu/multiarch/s_tan.c	2012-05-11 12:53:39.491061476 -0600
+@@ -12,7 +12,8 @@ extern double __tan_fma4 (double);
+ #  define __tan_fma4 ((void *) 0)
+ # endif
+ 
+-libm_ifunc (tan, HAS_FMA4 ? __tan_fma4 : HAS_AVX ? __tan_avx : __tan_sse2);
++libm_ifunc (tan, (HAS_FMA4 ? __tan_fma4 :
++		  HAS_AVX ? __tan_avx : __tan_sse2));
+ 
+ # define tan __tan_sse2
+ #endif
+diff -rup c/sysdeps/x86_64/multiarch/init-arch.c d/sysdeps/x86_64/multiarch/init-arch.c
+--- c/sysdeps/x86_64/multiarch/init-arch.c	2012-01-01 05:16:32.000000000 -0700
++++ d/sysdeps/x86_64/multiarch/init-arch.c	2012-05-11 12:55:29.169490958 -0600
+@@ -1,6 +1,6 @@
+ /* Initialize CPU feature data.
+    This file is part of the GNU C Library.
+-   Copyright (C) 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
++   Copyright (C) 2008-2012 Free Software Foundation, Inc.
+    Contributed by Ulrich Drepper <drepper at redhat.com>.
+ 
+    The GNU C Library is free software; you can redistribute it and/or
+@@ -14,9 +14,8 @@
+    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.  */
++   License along with the GNU C Library; if not, see
++   <http://www.gnu.org/licenses/>.  */
+ 
+ #include <atomic.h>
+ #include <cpuid.h>
+@@ -144,6 +143,23 @@ __init_cpu_features (void)
+   else
+     kind = arch_kind_other;
+ 
++  if (__cpu_features.cpuid[COMMON_CPUID_INDEX_1].ecx & bit_AVX)
++    {
++      /* Determine if AVX is usable.  */
++      if ((__cpu_features.cpuid[COMMON_CPUID_INDEX_1].ecx & bit_OSXSAVE) != 0
++	  && ({ unsigned int xcrlow;
++		unsigned int xcrhigh;
++		asm ("xgetbv"
++		     : "=a" (xcrlow), "=d" (xcrhigh) : "c" (0));
++		(xcrlow & (bit_YMM_state | bit_XMM_state)) ==
++		 (bit_YMM_state | bit_XMM_state); }))
++	__cpu_features.feature[index_AVX_Usable] = 1;
++    }
++
++  /* FMA4 depends on AVX support.  */
++  if ((__cpu_features.cpuid[COMMON_CPUID_INDEX_80000001].ecx & bit_FMA4) &&  __cpu_features.feature[index_AVX_Usable])
++	__cpu_features.feature[index_FMA4_Usable] = 1;
++
+   __cpu_features.family = family;
+   __cpu_features.model = model;
+   atomic_write_barrier ();
+diff -rup c/sysdeps/x86_64/multiarch/init-arch.h d/sysdeps/x86_64/multiarch/init-arch.h
+--- c/sysdeps/x86_64/multiarch/init-arch.h	2012-01-01 05:16:32.000000000 -0700
++++ d/sysdeps/x86_64/multiarch/init-arch.h	2012-05-11 12:55:29.170490953 -0600
+@@ -1,5 +1,5 @@
+ /* This file is part of the GNU C Library.
+-   Copyright (C) 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
++   Copyright (C) 2008-2012 Free Software Foundation, Inc.
+ 
+    The GNU C Library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+@@ -12,9 +12,8 @@
+    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.  */
++   License along with the GNU C Library; if not, see
++   <http://www.gnu.org/licenses/>.  */
+ 
+ #define bit_Fast_Rep_String		(1 << 0)
+ #define bit_Fast_Copy_Backward		(1 << 1)
+@@ -22,16 +21,24 @@
+ #define bit_Prefer_SSE_for_memop	(1 << 3)
+ #define bit_Fast_Unaligned_Load		(1 << 4)
+ #define bit_Prefer_PMINUB_for_stringop	(1 << 5)
++#define bit_AVX_Usable			(1 << 6)
++#define bit_FMA4_Usable			(1 << 7)
+ 
++/* CPUID Feature flags.  */
+ #define bit_SSE2	(1 << 26)
+ #define bit_SSSE3	(1 << 9)
+ #define bit_SSE4_1	(1 << 19)
+ #define bit_SSE4_2	(1 << 20)
++#define bit_OSXSAVE	(1 << 27)
+ #define bit_AVX		(1 << 28)
+ #define bit_POPCOUNT	(1 << 23)
+ #define bit_FMA		(1 << 12)
+ #define bit_FMA4	(1 << 16)
+ 
++/* XCR0 Feature flags.  */
++#define bit_XMM_state  (1 << 1)
++#define bit_YMM_state  (2 << 1)
++
+ #ifdef	__ASSEMBLER__
+ 
+ # include <ifunc-defines.h>
+@@ -48,6 +55,8 @@
+ # define index_Prefer_SSE_for_memop	FEATURE_INDEX_1*FEATURE_SIZE
+ # define index_Fast_Unaligned_Load	FEATURE_INDEX_1*FEATURE_SIZE
+ # define index_Prefer_PMINUB_for_stringop FEATURE_INDEX_1*FEATURE_SIZE
++# define index_AVX_Usable		FEATURE_INDEX_1*FEATURE_SIZE
++# define index_FMA4_Usable		FEATURE_INDEX_1*FEATURE_SIZE
+ 
+ #else	/* __ASSEMBLER__ */
+ 
+@@ -92,7 +101,7 @@ extern struct cpu_features
+ 
+ 
+ extern void __init_cpu_features (void) attribute_hidden;
+-#define INIT_ARCH()\
++# define INIT_ARCH() \
+   do							\
+     if (__cpu_features.kind == arch_kind_unknown)	\
+       __init_cpu_features ();				\
+@@ -111,37 +120,36 @@ extern const struct cpu_features *__get_
+ 
+ /* Following are the feature tests used throughout libc.  */
+ 
++/* CPUID_* evaluates to true if the feature flag is enabled.  */
++# define CPUID_OSXSAVE	HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_OSXSAVE)
++# define CPUID_AVX	HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_AVX)
++# define CPUID_FMA4	HAS_CPU_FEATURE (COMMON_CPUID_INDEX_80000001, ecx, bit_FMA4)
++
++/* HAS_* evaluates to true if we may use the feature at runtime.  */
+ # define HAS_SSE2	HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, edx, bit_SSE2)
+ # define HAS_POPCOUNT	HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_POPCOUNT)
+ # define HAS_SSSE3	HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_SSSE3)
+ # define HAS_SSE4_1	HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_SSE4_1)
+ # define HAS_SSE4_2	HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_SSE4_2)
+ # define HAS_FMA	HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_FMA)
+-# define HAS_AVX	HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_AVX)
+-# define HAS_FMA4	HAS_CPU_FEATURE (COMMON_CPUID_INDEX_80000001, ecx, bit_FMA4)
+ 
+ # define index_Fast_Rep_String		FEATURE_INDEX_1
+ # define index_Fast_Copy_Backward	FEATURE_INDEX_1
+ # define index_Slow_BSF			FEATURE_INDEX_1
+ # define index_Prefer_SSE_for_memop	FEATURE_INDEX_1
+ # define index_Fast_Unaligned_Load	FEATURE_INDEX_1
++# define index_AVX_Usable		FEATURE_INDEX_1
++# define index_FMA4_Usable		FEATURE_INDEX_1
+ 
+-#define HAS_ARCH_FEATURE(idx, bit) \
+-  ((__get_cpu_features ()->feature[idx] & (bit)) != 0)
+-
+-#define HAS_FAST_REP_STRING \
+-  HAS_ARCH_FEATURE (index_Fast_Rep_String, bit_Fast_Rep_String)
+-
+-#define HAS_FAST_COPY_BACKWARD \
+-  HAS_ARCH_FEATURE (index_Fast_Copy_Backward, bit_Fast_Copy_Backward)
+-
+-#define HAS_SLOW_BSF \
+-  HAS_ARCH_FEATURE (index_Slow_BSF, bit_Slow_BSF)
+-
+-#define HAS_PREFER_SSE_FOR_MEMOP \
+-  HAS_ARCH_FEATURE (index_Prefer_SSE_for_memop, bit_Prefer_SSE_for_memop)
++# define HAS_ARCH_FEATURE(name) \
++  ((__get_cpu_features ()->feature[index_##name] & (bit_##name)) != 0)
+ 
+-#define HAS_FAST_UNALIGNED_LOAD \
+-  HAS_ARCH_FEATURE (index_Fast_Unaligned_Load, bit_Fast_Unaligned_Load)
++# define HAS_FAST_REP_STRING		HAS_ARCH_FEATURE (Fast_Rep_String)
++# define HAS_FAST_COPY_BACKWARD		HAS_ARCH_FEATURE (Fast_Copy_Backward)
++# define HAS_SLOW_BSF			HAS_ARCH_FEATURE (Slow_BSF)
++# define HAS_PREFER_SSE_FOR_MEMOP	HAS_ARCH_FEATURE (Prefer_SSE_for_memop)
++# define HAS_FAST_UNALIGNED_LOAD	HAS_ARCH_FEATURE (Fast_Unaligned_Load)
++# define HAS_AVX			HAS_ARCH_FEATURE (AVX_Usable)
++# define HAS_FMA4			HAS_ARCH_FEATURE (FMA4_Usable)
+ 
+ #endif	/* __ASSEMBLER__ */
+diff -rup c/sysdeps/x86_64/multiarch/strcmp.S d/sysdeps/x86_64/multiarch/strcmp.S
+--- c/sysdeps/x86_64/multiarch/strcmp.S	2012-01-01 05:16:32.000000000 -0700
++++ d/sysdeps/x86_64/multiarch/strcmp.S	2012-05-11 12:55:29.172490943 -0600
+@@ -1,5 +1,5 @@
+ /* strcmp with SSE4.2
+-   Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc.
++   Copyright (C) 2009-2012 Free Software Foundation, Inc.
+    Contributed by Intel Corporation.
+    This file is part of the GNU C Library.
+ 
+@@ -107,7 +107,7 @@ ENTRY(__strcasecmp)
+ 1:
+ #  ifdef HAVE_AVX_SUPPORT
+ 	leaq	__strcasecmp_avx(%rip), %rax
+-	testl	$bit_AVX, __cpu_features+CPUID_OFFSET+index_AVX(%rip)
++	testl	$bit_AVX_Usable, __cpu_features+FEATURE_OFFSET+index_AVX_Usable(%rip)
+ 	jnz	2f
+ #  endif
+ 	leaq	__strcasecmp_sse42(%rip), %rax
+@@ -130,7 +130,7 @@ ENTRY(__strncasecmp)
+ 1:
+ #  ifdef HAVE_AVX_SUPPORT
+ 	leaq	__strncasecmp_avx(%rip), %rax
+-	testl	$bit_AVX, __cpu_features+CPUID_OFFSET+index_AVX(%rip)
++	testl	$bit_AVX_Usable, __cpu_features+FEATURE_OFFSET+index_AVX_Usable(%rip)
+ 	jnz	2f
+ #  endif
+ 	leaq	__strncasecmp_sse42(%rip), %rax
+Only in d/sysdeps/x86_64/multiarch: strcmp.S.orig
diff --git a/glibc.spec b/glibc.spec
index c32fdbf..9c1bd57 100644
--- a/glibc.spec
+++ b/glibc.spec
@@ -28,7 +28,7 @@
 Summary: The GNU libc libraries
 Name: glibc
 Version: %{glibcversion}
-Release: 37%{?dist}
+Release: 38%{?dist}
 # GPLv2+ is used in a bunch of programs, LGPLv2+ is used for libraries.
 # Things that are linked directly into dynamically linked programs
 # and shared libraries (e.g. crt files, lib*_nonshared.a) have an additional
@@ -108,8 +108,6 @@ Patch1037: %{name}-rh760935.patch
 Patch1038: %{name}-rh798471.patch
 Patch1039: %{name}-rh758888.patch
 Patch1041: %{name}-rh794797-2.patch
-Patch1042: %{name}-rh801650-1.patch
-Patch1043: %{name}-rh801650-2.patch
 Patch1046: %{name}-rh806403.patch
 Patch1048: %{name}-rh804792.patch
 Patch1052: %{name}-sw13979.patch
@@ -190,8 +188,8 @@ Patch2051: %{name}-rh788989-2.patch
 Patch2054: %{name}-arm-hardfloat-1.patch
 Patch2055: %{name}-arm-hardfloat-2.patch
 
-# Upstream BZ 13753, probably will be fixed differently
-Patch2056: %{name}-rh801650-3.patch
+# Upstream BZ 13753/14059
+Patch2056: %{name}-rh801650.patch
 
 Buildroot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 Obsoletes: glibc-profile < 2.4
@@ -448,8 +446,6 @@ rm -rf %{glibcportsdir}
 %patch1039 -p1
 %patch2040 -p1
 %patch1041 -p1
-%patch1042 -p1
-%patch1043 -p1
 %patch0044 -p1
 %patch2045 -p1
 %patch1046 -p1
@@ -1319,6 +1315,9 @@ rm -f *.filelist*
 %endif
 
 %changelog
+* Fri May 11 2012 Jeff Law <law at redhat.com> - 2.15-38
+  - Upstream patch to fix AVX testing (#801650)
+
 * Thu May 10 2012 Jeff Law <law at redhat.com> - 2.15-37
   - Try again to fix AVX testing (#801650)
 


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