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| author | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-07-13 16:33:00 -0700 |
|---|---|---|
| committer | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-07-16 03:07:59 -0700 |
| commit | 192979ee351315b84ff4277d0985f26243717cd7 (patch) | |
| tree | a62f2737cc82add1047d89ef9e89984849a6de8d /sysdeps/x86_64/multiarch/stpncpy-sse2-unaligned.S | |
| parent | ceabdcd130ca7043b0fcf2676183d79431d10493 (diff) | |
| download | glibc-192979ee351315b84ff4277d0985f26243717cd7.tar.gz glibc-192979ee351315b84ff4277d0985f26243717cd7.tar.xz glibc-192979ee351315b84ff4277d0985f26243717cd7.zip | |
x86: Add support to build wcscpy with explicit ISA level
1. Add ISA level build guards to different implementations.
- wcscpy-ssse3.S is used as ISA level 2/3/4.
- wcscpy-generic.c is only used at ISA level 1 and will
only build if compiled with ISA level == 1. Otherwise
there is no reason to include it as we will always use
wcscpy-ssse3.S
2. Refactor the ifunc selector and ifunc implementation list to use
the ISA level aware wrapper macros that allow functions below the
compiled ISA level (with a guranteed replacement) to be skipped.
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_64/multiarch/stpncpy-sse2-unaligned.S')
0 files changed, 0 insertions, 0 deletions