| /* x86 version of hardware capability information handling macros. |
| Copyright (C) 2017-2018 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 |
| 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/>. */ |
| |
| #ifndef _DL_HWCAP_H |
| #define _DL_HWCAP_H |
| |
| #if IS_IN (ldconfig) |
| /* Since ldconfig processes both i386 and x86-64 libraries, it needs |
| to cover all platforms and hardware capabilities. */ |
| # define HWCAP_PLATFORMS_START 0 |
| # define HWCAP_PLATFORMS_COUNT 4 |
| # define HWCAP_START 0 |
| # define HWCAP_COUNT 3 |
| # define HWCAP_IMPORTANT \ |
| (HWCAP_X86_SSE2 | HWCAP_X86_64 | HWCAP_X86_AVX512_1) |
| #elif defined __x86_64__ |
| /* For 64 bit, only cover x86-64 platforms and capabilities. */ |
| # define HWCAP_PLATFORMS_START 2 |
| # define HWCAP_PLATFORMS_COUNT 4 |
| # define HWCAP_START 1 |
| # define HWCAP_COUNT 3 |
| # define HWCAP_IMPORTANT (HWCAP_X86_64 | HWCAP_X86_AVX512_1) |
| #else |
| /* For 32 bit, only cover i586, i686 and SSE2. */ |
| # define HWCAP_PLATFORMS_START 0 |
| # define HWCAP_PLATFORMS_COUNT 2 |
| # define HWCAP_START 0 |
| # define HWCAP_COUNT 1 |
| # define HWCAP_IMPORTANT (HWCAP_X86_SSE2) |
| #endif |
| |
| enum |
| { |
| HWCAP_X86_SSE2 = 1 << 0, |
| HWCAP_X86_64 = 1 << 1, |
| HWCAP_X86_AVX512_1 = 1 << 2 |
| }; |
| |
| static inline const char * |
| __attribute__ ((unused)) |
| _dl_hwcap_string (int idx) |
| { |
| return GLRO(dl_x86_hwcap_flags)[idx]; |
| }; |
| |
| static inline int |
| __attribute__ ((unused, always_inline)) |
| _dl_string_hwcap (const char *str) |
| { |
| int i; |
| |
| for (i = HWCAP_START; i < HWCAP_COUNT; i++) |
| { |
| if (strcmp (str, GLRO(dl_x86_hwcap_flags)[i]) == 0) |
| return i; |
| } |
| return -1; |
| }; |
| |
| /* We cannot provide a general printing function. */ |
| #define _dl_procinfo(type, word) -1 |
| |
| #endif /* dl-hwcap.h */ |