| 1 | /* Test case for preserved AVX registers in dynamic linker. |
|---|
| 2 | Copyright (C) 2009-2022 Free Software Foundation, Inc. |
|---|
| 3 | This file is part of the GNU C Library. |
|---|
| 4 | |
|---|
| 5 | The GNU C Library is free software; you can redistribute it and/or |
|---|
| 6 | modify it under the terms of the GNU Lesser General Public |
|---|
| 7 | License as published by the Free Software Foundation; either |
|---|
| 8 | version 2.1 of the License, or (at your option) any later version. |
|---|
| 9 | |
|---|
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
|---|
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
|---|
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|---|
| 13 | Lesser General Public License for more details. |
|---|
| 14 | |
|---|
| 15 | You should have received a copy of the GNU Lesser General Public |
|---|
| 16 | License along with the GNU C Library; if not, see |
|---|
| 17 | <https://www.gnu.org/licenses/>. */ |
|---|
| 18 | |
|---|
| 19 | #include <cpuid.h> |
|---|
| 20 | |
|---|
| 21 | int tst_audit4_aux (void); |
|---|
| 22 | |
|---|
| 23 | static int |
|---|
| 24 | avx_enabled (void) |
|---|
| 25 | { |
|---|
| 26 | unsigned int eax, ebx, ecx, edx; |
|---|
| 27 | |
|---|
| 28 | if (__get_cpuid (leaf: 1, eax: &eax, ebx: &ebx, ecx: &ecx, edx: &edx) == 0 |
|---|
| 29 | || (ecx & (bit_AVX | bit_OSXSAVE)) != (bit_AVX | bit_OSXSAVE)) |
|---|
| 30 | return 0; |
|---|
| 31 | |
|---|
| 32 | /* Check the OS has AVX and SSE saving enabled. */ |
|---|
| 33 | asm ("xgetbv" : "=a" (eax), "=d" (edx) : "c" (0)); |
|---|
| 34 | |
|---|
| 35 | return (eax & 6) == 6; |
|---|
| 36 | } |
|---|
| 37 | |
|---|
| 38 | static int |
|---|
| 39 | do_test (void) |
|---|
| 40 | { |
|---|
| 41 | /* Run AVX test only if AVX is supported. */ |
|---|
| 42 | if (avx_enabled ()) |
|---|
| 43 | return tst_audit4_aux (); |
|---|
| 44 | else |
|---|
| 45 | return 77; |
|---|
| 46 | } |
|---|
| 47 | |
|---|
| 48 | #define TEST_FUNCTION do_test () |
|---|
| 49 | #include "../../test-skeleton.c" |
|---|
| 50 | |
|---|
