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glibc/sysdeps/x86_64/tst-audit4.c
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/* 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/>. */ | |
#include <cpuid.h> | |
int tst_audit4_aux (void); | |
static int | |
avx_enabled (void) | |
{ | |
unsigned int eax, ebx, ecx, edx; | |
if (__get_cpuid (1, &eax, &ebx, &ecx, &edx) == 0 | |
|| (ecx & (bit_AVX | bit_OSXSAVE)) != (bit_AVX | bit_OSXSAVE)) | |
return 0; | |
/* Check the OS has AVX and SSE saving enabled. */ | |
asm ("xgetbv" : "=a" (eax), "=d" (edx) : "c" (0)); | |
return (eax & 6) == 6; | |
} | |
static int | |
do_test (void) | |
{ | |
/* Run AVX test only if AVX is supported. */ | |
if (avx_enabled ()) | |
return tst_audit4_aux (); | |
else | |
return 77; | |
} | |
#define TEST_FUNCTION do_test () | |
#include "../../test-skeleton.c" |