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glibc/glibc-rh1313404-1.patch
Florian Weimer 79cd021451 Resolves: #1313404 
Fix elf/tst-audit10 and elf/tst-audit4 failures
2016-05-06 17:13:11 +02:00

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commit 3c0f7407eedb524c9114bb675cd55b903c71daaa
Author: Florian Weimer <fweimer@redhat.com>
Date: Mon Mar 7 16:00:25 2016 +0100
tst-audit4, tst-audit10: Compile AVX/AVX-512 code separately [BZ #19269]
This ensures that GCC will not use unsupported instructions before
the run-time check to ensure support.
Index: b/sysdeps/x86_64/Makefile
===================================================================
--- a/sysdeps/x86_64/Makefile
+++ b/sysdeps/x86_64/Makefile
@@ -49,7 +49,7 @@ $(objpfx)tst-audit3: $(objpfx)tst-auditm
$(objpfx)tst-audit3.out: $(objpfx)tst-auditmod3b.so
tst-audit3-ENV = LD_AUDIT=$(objpfx)tst-auditmod3b.so
-$(objpfx)tst-audit4: $(objpfx)tst-auditmod4a.so
+$(objpfx)tst-audit4: $(objpfx)tst-audit4-aux.o $(objpfx)tst-auditmod4a.so
$(objpfx)tst-audit4.out: $(objpfx)tst-auditmod4b.so
tst-audit4-ENV = LD_AUDIT=$(objpfx)tst-auditmod4b.so
@@ -66,7 +66,7 @@ $(objpfx)tst-audit7: $(objpfx)tst-auditm
$(objpfx)tst-audit7.out: $(objpfx)tst-auditmod7b.so
tst-audit7-ENV = LD_AUDIT=$(objpfx)tst-auditmod7b.so
-$(objpfx)tst-audit10: $(objpfx)tst-auditmod10a.so
+$(objpfx)tst-audit10: $(objpfx)tst-audit10-aux.o $(objpfx)tst-auditmod10a.so
$(objpfx)tst-audit10.out: $(objpfx)tst-auditmod10b.so
tst-audit10-ENV = LD_AUDIT=$(objpfx)tst-auditmod10b.so
@@ -75,7 +75,7 @@ AVX-CFLAGS=-mavx
ifeq (yes,$(config-cflags-novzeroupper))
AVX-CFLAGS+=-mno-vzeroupper
endif
-CFLAGS-tst-audit4.c += $(AVX-CFLAGS)
+CFLAGS-tst-audit4-aux.c += $(AVX-CFLAGS)
CFLAGS-tst-auditmod4a.c += $(AVX-CFLAGS)
CFLAGS-tst-auditmod4b.c += $(AVX-CFLAGS)
CFLAGS-tst-auditmod6b.c += $(AVX-CFLAGS)
@@ -84,7 +84,7 @@ CFLAGS-tst-auditmod7b.c += $(AVX-CFLAGS)
endif
ifeq (yes,$(config-cflags-avx512))
AVX512-CFLAGS = -mavx512f
-CFLAGS-tst-audit10.c += $(AVX512-CFLAGS)
+CFLAGS-tst-audit10-aux.c += $(AVX512-CFLAGS)
CFLAGS-tst-auditmod10a.c += $(AVX512-CFLAGS)
CFLAGS-tst-auditmod10b.c += $(AVX512-CFLAGS)
endif
Index: b/sysdeps/x86_64/tst-audit10-aux.c
===================================================================
--- /dev/null
+++ b/sysdeps/x86_64/tst-audit10-aux.c
@@ -0,0 +1,41 @@
+/* Test case for preserved AVX512 registers in dynamic linker, -mavx512f part.
+ Copyright (C) 2012-2016 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/>. */
+
+#include <immintrin.h>
+#include <stdlib.h>
+#include <string.h>
+
+extern __m512i audit_test (__m512i, __m512i, __m512i, __m512i,
+ __m512i, __m512i, __m512i, __m512i);
+
+int
+tst_audit10_aux (void)
+{
+#ifdef __AVX512F__
+ __m512i zmm = _mm512_setzero_si512 ();
+ __m512i ret = audit_test (zmm, zmm, zmm, zmm, zmm, zmm, zmm, zmm);
+
+ zmm = _mm512_set1_epi64 (0x12349876);
+
+ if (memcmp (&zmm, &ret, sizeof (ret)))
+ abort ();
+ return 0;
+#else /* __AVX512F__ */
+ return 77;
+#endif /* __AVX512F__ */
+}
Index: b/sysdeps/x86_64/tst-audit10.c
===================================================================
--- a/sysdeps/x86_64/tst-audit10.c
+++ b/sysdeps/x86_64/tst-audit10.c
@@ -15,13 +15,9 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-/* Test case for x86-64 preserved registers in dynamic linker. */
-
-#ifdef __AVX512F__
-#include <stdlib.h>
-#include <string.h>
#include <cpuid.h>
-#include <immintrin.h>
+
+int tst_audit10_aux (void);
static int
avx512_enabled (void)
@@ -42,32 +38,15 @@ avx512_enabled (void)
return (eax & 0xe6) == 0xe6;
}
-
-extern __m512i audit_test (__m512i, __m512i, __m512i, __m512i,
- __m512i, __m512i, __m512i, __m512i);
static int
do_test (void)
{
/* Run AVX512 test only if AVX512 is supported. */
if (avx512_enabled ())
- {
- __m512i zmm = _mm512_setzero_si512 ();
- __m512i ret = audit_test (zmm, zmm, zmm, zmm, zmm, zmm, zmm, zmm);
-
- zmm = _mm512_set1_epi64 (0x12349876);
-
- if (memcmp (&zmm, &ret, sizeof (ret)))
- abort ();
- }
- return 0;
-}
-#else
-static int
-do_test (void)
-{
- return 0;
+ return tst_audit10_aux ();
+ else
+ return 77;
}
-#endif
#define TEST_FUNCTION do_test ()
#include "../../test-skeleton.c"
Index: b/sysdeps/x86_64/tst-audit4-aux.c
===================================================================
--- /dev/null
+++ b/sysdeps/x86_64/tst-audit4-aux.c
@@ -0,0 +1,39 @@
+/* Test case for preserved AVX registers in dynamic linker, -mavx part.
+ Copyright (C) 2009-2016 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/>. */
+
+#include <immintrin.h>
+#include <stdlib.h>
+#include <string.h>
+
+extern __m256i audit_test (__m256i, __m256i, __m256i, __m256i,
+ __m256i, __m256i, __m256i, __m256i);
+
+int
+tst_audit4_aux (void)
+{
+#ifdef __AVX__
+ __m256i ymm = _mm256_setzero_si256 ();
+ __m256i ret = audit_test (ymm, ymm, ymm, ymm, ymm, ymm, ymm, ymm);
+ ymm = _mm256_set1_epi32 (0x12349876);
+ if (memcmp (&ymm, &ret, sizeof (ret)))
+ abort ();
+ return 0;
+#else /* __AVX__ */
+ return 77;
+#endif /* __AVX__ */
+}
Index: b/sysdeps/x86_64/tst-audit4.c
===================================================================
--- a/sysdeps/x86_64/tst-audit4.c
+++ b/sysdeps/x86_64/tst-audit4.c
@@ -1,11 +1,24 @@
-/* Test case for x86-64 preserved registers in dynamic linker. */
+/* Test case for preserved AVX registers in dynamic linker.
+ Copyright (C) 2009-2016 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/>. */
-#ifdef __AVX__
-#include <stdlib.h>
-#include <string.h>
#include <cpuid.h>
-#include <immintrin.h>
+int tst_audit4_aux (void);
static int
avx_enabled (void)
@@ -22,31 +35,15 @@ avx_enabled (void)
return (eax & 6) == 6;
}
-
-extern __m256i audit_test (__m256i, __m256i, __m256i, __m256i,
- __m256i, __m256i, __m256i, __m256i);
static int
do_test (void)
{
/* Run AVX test only if AVX is supported. */
if (avx_enabled ())
- {
- __m256i ymm = _mm256_setzero_si256 ();
- __m256i ret = audit_test (ymm, ymm, ymm, ymm, ymm, ymm, ymm, ymm);
-
- ymm = _mm256_set1_epi32 (0x12349876);
- if (memcmp (&ymm, &ret, sizeof (ret)))
- abort ();
- }
- return 0;
-}
-#else
-static int
-do_test (void)
-{
- return 0;
+ return tst_audit4_aux ();
+ else
+ return 77;
}
-#endif
#define TEST_FUNCTION do_test ()
#include "../../test-skeleton.c"
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