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| author | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-06-22 16:51:19 -0700 |
|---|---|---|
| committer | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-06-22 19:41:35 -0700 |
| commit | 703f4341083afa7d71987aa96a35eab81309e634 (patch) | |
| tree | 9e1c48a7cf7baf41599d03bc852ae88b8a75d263 /sysdeps/x86/isa-level.c | |
| parent | 464d189b9622932a75302290625de84931656ec0 (diff) | |
| download | glibc-703f4341083afa7d71987aa96a35eab81309e634.zip glibc-703f4341083afa7d71987aa96a35eab81309e634.tar.gz glibc-703f4341083afa7d71987aa96a35eab81309e634.tar.bz2 | |
x86: Add defines / utilities for making ISA specific x86 builds
1. Factor out some of the ISA level defines in isa-level.c to
standalone header isa-level.h
2. Add new headers with ISA level dependent macros for handling
ifuncs.
Note, this file does not change any code.
Tested with and without multiarch on x86_64 for ISA levels:
{generic, x86-64-v2, x86-64-v3, x86-64-v4}
And m32 with and without multiarch.
Diffstat (limited to 'sysdeps/x86/isa-level.c')
| -rw-r--r-- | sysdeps/x86/isa-level.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/sysdeps/x86/isa-level.c b/sysdeps/x86/isa-level.c index 09cd72a..5b7a2da 100644 --- a/sysdeps/x86/isa-level.c +++ b/sysdeps/x86/isa-level.c @@ -26,38 +26,31 @@ <https://www.gnu.org/licenses/>. */ #include <elf.h> - +#include <sysdeps/x86/isa-level.h> /* ELF program property for x86 ISA level. */ #ifdef INCLUDE_X86_ISA_LEVEL -# if defined __SSE__ && defined __SSE2__ +# if MINIMUM_X86_ISA_LEVEL >= 1 /* NB: ISAs, excluding MMX, in x86-64 ISA level baseline are used. */ # define ISA_BASELINE GNU_PROPERTY_X86_ISA_1_BASELINE # else # define ISA_BASELINE 0 # endif -# if ISA_BASELINE && defined __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 \ - && defined HAVE_X86_LAHF_SAHF && defined __POPCNT__ \ - && defined __SSE3__ && defined __SSSE3__ && defined __SSE4_1__ \ - && defined __SSE4_2__ +# if MINIMUM_X86_ISA_LEVEL >= 2 /* NB: ISAs in x86-64 ISA level v2 are used. */ # define ISA_V2 GNU_PROPERTY_X86_ISA_1_V2 # else # define ISA_V2 0 # endif -# if ISA_V2 && defined __AVX__ && defined __AVX2__ && defined __F16C__ \ - && defined __FMA__ && defined __LZCNT__ && defined HAVE_X86_MOVBE \ - && defined __BMI__ && defined __BMI2__ +# if MINIMUM_X86_ISA_LEVEL >= 3 /* NB: ISAs in x86-64 ISA level v3 are used. */ # define ISA_V3 GNU_PROPERTY_X86_ISA_1_V3 # else # define ISA_V3 0 # endif -# if ISA_V3 && defined __AVX512F__ && defined __AVX512BW__ \ - && defined __AVX512CD__ && defined __AVX512DQ__ \ - && defined __AVX512VL__ +# if MINIMUM_X86_ISA_LEVEL >= 4 /* NB: ISAs in x86-64 ISA level v4 are used. */ # define ISA_V4 GNU_PROPERTY_X86_ISA_1_V4 # else |