diff options
| author | H.J. Lu <hjl.tools@gmail.com> | 2022-06-27 11:36:28 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2022-06-27 14:17:52 -0700 |
| commit | cfdc4df66ce1464611e1b508f7a5a8f38afd5337 (patch) | |
| tree | f7a9aa5d51998f088220c91402a4124059eeb9b9 /sysdeps/x86_64/dl-trampoline.S | |
| parent | f56c497d2b640577f0a8a41f04d4f2c25a8800bd (diff) | |
| download | glibc-cfdc4df66ce1464611e1b508f7a5a8f38afd5337.tar.gz glibc-cfdc4df66ce1464611e1b508f7a5a8f38afd5337.tar.xz glibc-cfdc4df66ce1464611e1b508f7a5a8f38afd5337.zip | |
x86-64: Only define used SSE/AVX/AVX512 run-time resolvers
When glibc is built with x86-64 ISA level v3, SSE run-time resolvers aren't used. For x86-64 ISA level v4 build, both SSE and AVX resolvers are unused. Check the minimum x86-64 ISA level to exclude the unused run-time resolvers.
Diffstat (limited to 'sysdeps/x86_64/dl-trampoline.S')
| -rw-r--r-- | sysdeps/x86_64/dl-trampoline.S | 59 |
1 files changed, 32 insertions, 27 deletions
diff --git a/sysdeps/x86_64/dl-trampoline.S b/sysdeps/x86_64/dl-trampoline.S index 831a654713..f669805ac5 100644 --- a/sysdeps/x86_64/dl-trampoline.S +++ b/sysdeps/x86_64/dl-trampoline.S @@ -20,6 +20,7 @@ #include <sysdep.h> #include <cpu-features-offsets.h> #include <link-defines.h> +#include <isa-level.h> #ifndef DL_STACK_ALIGNMENT /* Due to GCC bug: @@ -62,35 +63,39 @@ #undef VMOVA #undef VEC_SIZE -#define VEC_SIZE 32 -#define VMOVA vmovdqa -#define VEC(i) ymm##i -#define _dl_runtime_profile _dl_runtime_profile_avx -#include "dl-trampoline.h" -#undef _dl_runtime_profile -#undef VEC -#undef VMOVA -#undef VEC_SIZE +#if MINIMUM_X86_ISA_LEVEL <= AVX_X86_ISA_LEVEL +# define VEC_SIZE 32 +# define VMOVA vmovdqa +# define VEC(i) ymm##i +# define _dl_runtime_profile _dl_runtime_profile_avx +# include "dl-trampoline.h" +# undef _dl_runtime_profile +# undef VEC +# undef VMOVA +# undef VEC_SIZE +#endif +#if MINIMUM_X86_ISA_LEVEL < AVX_X86_ISA_LEVEL /* movaps/movups is 1-byte shorter. */ -#define VEC_SIZE 16 -#define VMOVA movaps -#define VEC(i) xmm##i -#define _dl_runtime_profile _dl_runtime_profile_sse -#undef RESTORE_AVX -#include "dl-trampoline.h" -#undef _dl_runtime_profile -#undef VEC -#undef VMOVA -#undef VEC_SIZE - -#define USE_FXSAVE -#define STATE_SAVE_ALIGNMENT 16 -#define _dl_runtime_resolve _dl_runtime_resolve_fxsave -#include "dl-trampoline.h" -#undef _dl_runtime_resolve -#undef USE_FXSAVE -#undef STATE_SAVE_ALIGNMENT +# define VEC_SIZE 16 +# define VMOVA movaps +# define VEC(i) xmm##i +# define _dl_runtime_profile _dl_runtime_profile_sse +# undef RESTORE_AVX +# include "dl-trampoline.h" +# undef _dl_runtime_profile +# undef VEC +# undef VMOVA +# undef VEC_SIZE + +# define USE_FXSAVE +# define STATE_SAVE_ALIGNMENT 16 +# define _dl_runtime_resolve _dl_runtime_resolve_fxsave +# include "dl-trampoline.h" +# undef _dl_runtime_resolve +# undef USE_FXSAVE +# undef STATE_SAVE_ALIGNMENT +#endif #define USE_XSAVE #define STATE_SAVE_ALIGNMENT 64 |