diff options
Diffstat (limited to 'sysdeps/x86_64/dl-trampoline.S')
| -rw-r--r-- | sysdeps/x86_64/dl-trampoline.S | 87 |
1 files changed, 29 insertions, 58 deletions
diff --git a/sysdeps/x86_64/dl-trampoline.S b/sysdeps/x86_64/dl-trampoline.S index c14c61aa58..a645572e44 100644 --- a/sysdeps/x86_64/dl-trampoline.S +++ b/sysdeps/x86_64/dl-trampoline.S @@ -34,41 +34,24 @@ # define DL_STACK_ALIGNMENT 8 #endif -#ifndef DL_RUNTIME_UNALIGNED_VEC_SIZE -/* The maximum size in bytes of unaligned vector load and store in the - dynamic linker. Since SSE optimized memory/string functions with - aligned SSE register load and store are used in the dynamic linker, - we must set this to 8 so that _dl_runtime_resolve_sse will align the - stack before calling _dl_fixup. */ -# define DL_RUNTIME_UNALIGNED_VEC_SIZE 8 -#endif - -/* True if _dl_runtime_resolve should align stack to VEC_SIZE bytes. */ +/* True if _dl_runtime_resolve should align stack for STATE_SAVE or align + stack to 16 bytes before calling _dl_fixup. */ #define DL_RUNTIME_RESOLVE_REALIGN_STACK \ - (VEC_SIZE > DL_STACK_ALIGNMENT \ - && VEC_SIZE > DL_RUNTIME_UNALIGNED_VEC_SIZE) - -/* Align vector register save area to 16 bytes. */ -#define REGISTER_SAVE_VEC_OFF 0 + (STATE_SAVE_ALIGNMENT > DL_STACK_ALIGNMENT \ + || 16 > DL_STACK_ALIGNMENT) /* Area on stack to save and restore registers used for parameter passing when calling _dl_fixup. */ #ifdef __ILP32__ -# define REGISTER_SAVE_RAX (REGISTER_SAVE_VEC_OFF + VEC_SIZE * 8) # define PRESERVE_BND_REGS_PREFIX #else -/* Align bound register save area to 16 bytes. */ -# define REGISTER_SAVE_BND0 (REGISTER_SAVE_VEC_OFF + VEC_SIZE * 8) -# define REGISTER_SAVE_BND1 (REGISTER_SAVE_BND0 + 16) -# define REGISTER_SAVE_BND2 (REGISTER_SAVE_BND1 + 16) -# define REGISTER_SAVE_BND3 (REGISTER_SAVE_BND2 + 16) -# define REGISTER_SAVE_RAX (REGISTER_SAVE_BND3 + 16) # ifdef HAVE_MPX_SUPPORT # define PRESERVE_BND_REGS_PREFIX bnd # else # define PRESERVE_BND_REGS_PREFIX .byte 0xf2 # endif #endif +#define REGISTER_SAVE_RAX 0 #define REGISTER_SAVE_RCX (REGISTER_SAVE_RAX + 8) #define REGISTER_SAVE_RDX (REGISTER_SAVE_RCX + 8) #define REGISTER_SAVE_RSI (REGISTER_SAVE_RDX + 8) @@ -80,68 +63,56 @@ #define VEC_SIZE 64 #define VMOVA vmovdqa64 -#if DL_RUNTIME_RESOLVE_REALIGN_STACK || VEC_SIZE <= DL_STACK_ALIGNMENT -# define VMOV vmovdqa64 -#else -# define VMOV vmovdqu64 -#endif #define VEC(i) zmm##i -#define _dl_runtime_resolve _dl_runtime_resolve_avx512 #define _dl_runtime_profile _dl_runtime_profile_avx512 #include "dl-trampoline.h" -#undef _dl_runtime_resolve #undef _dl_runtime_profile #undef VEC -#undef VMOV #undef VMOVA #undef VEC_SIZE #define VEC_SIZE 32 #define VMOVA vmovdqa -#if DL_RUNTIME_RESOLVE_REALIGN_STACK || VEC_SIZE <= DL_STACK_ALIGNMENT -# define VMOV vmovdqa -#else -# define VMOV vmovdqu -#endif #define VEC(i) ymm##i -#define _dl_runtime_resolve _dl_runtime_resolve_avx -#define _dl_runtime_resolve_opt _dl_runtime_resolve_avx_opt #define _dl_runtime_profile _dl_runtime_profile_avx #include "dl-trampoline.h" -#undef _dl_runtime_resolve -#undef _dl_runtime_resolve_opt #undef _dl_runtime_profile #undef VEC -#undef VMOV #undef VMOVA #undef VEC_SIZE /* movaps/movups is 1-byte shorter. */ #define VEC_SIZE 16 #define VMOVA movaps -#if DL_RUNTIME_RESOLVE_REALIGN_STACK || VEC_SIZE <= DL_STACK_ALIGNMENT -# define VMOV movaps -#else -# define VMOV movups -#endif #define VEC(i) xmm##i -#define _dl_runtime_resolve _dl_runtime_resolve_sse #define _dl_runtime_profile _dl_runtime_profile_sse #undef RESTORE_AVX #include "dl-trampoline.h" -#undef _dl_runtime_resolve #undef _dl_runtime_profile -#undef VMOV +#undef VEC #undef VMOVA +#undef VEC_SIZE -/* Used by _dl_runtime_resolve_avx_opt/_dl_runtime_resolve_avx512_opt - to preserve the full vector registers with zero upper bits. */ -#define VMOVA vmovdqa -#if DL_RUNTIME_RESOLVE_REALIGN_STACK || VEC_SIZE <= DL_STACK_ALIGNMENT -# define VMOV vmovdqa -#else -# define VMOV vmovdqu -#endif -#define _dl_runtime_resolve _dl_runtime_resolve_sse_vex -#define _dl_runtime_resolve_opt _dl_runtime_resolve_avx512_opt +#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 USE_XSAVE +#define STATE_SAVE_ALIGNMENT 64 +#define _dl_runtime_resolve _dl_runtime_resolve_xsave +#include "dl-trampoline.h" +#undef _dl_runtime_resolve +#undef USE_XSAVE +#undef STATE_SAVE_ALIGNMENT + +#define USE_XSAVEC +#define STATE_SAVE_ALIGNMENT 64 +#define _dl_runtime_resolve _dl_runtime_resolve_xsavec #include "dl-trampoline.h" +#undef _dl_runtime_resolve +#undef USE_XSAVEC +#undef STATE_SAVE_ALIGNMENT |