Update copyright dates with scripts/update-copyrights.

[thirdparty/glibc.git] / sysdeps / x86_64 / dl-trampoline.S

diff --git a/sysdeps/x86_64/dl-trampoline.S b/sysdeps/x86_64/dl-trampoline.S
index 9fb6b13983b20cd0ad7909b7814ba7b45add8604..a6ae32d1005a10c5bc00a1ae20164a7f957e1955 100644 (file)
--- a/sysdeps/x86_64/dl-trampoline.S
+++ b/sysdeps/x86_64/dl-trampoline.S
@@ -1,5 +1,5 @@
 /* PLT trampolines.  x86-64 version.
-   Copyright (C) 2004-2016 Free Software Foundation, Inc.
+   Copyright (C) 2004-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -18,6 +18,7 @@
 
 #include <config.h>
 #include <sysdep.h>
+#include <cpu-features-offsets.h>
 #include <link-defines.h>
 
 #ifndef DL_STACK_ALIGNMENT
@@ -33,37 +34,24 @@
 # define DL_STACK_ALIGNMENT 8
 #endif
 
-#ifndef DL_RUNIME_UNALIGNED_VEC_SIZE
-/* The maximum size of unaligned vector load and store.  */
-# define DL_RUNIME_UNALIGNED_VEC_SIZE 16
-#endif
-
-/* True if _dl_runtime_resolve should align stack to VEC_SIZE bytes.  */
-#define DL_RUNIME_RESOLVE_REALIGN_STACK \
-  (VEC_SIZE > DL_STACK_ALIGNMENT \
-   && VEC_SIZE > DL_RUNIME_UNALIGNED_VEC_SIZE)
-
-/* Align vector register save area to 16 bytes.  */
-#define REGISTER_SAVE_VEC_OFF  0
+/* 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 \
+  (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)
@@ -73,59 +61,58 @@
 
 #define RESTORE_AVX
 
-#ifdef HAVE_AVX512_ASM_SUPPORT
-# define VEC_SIZE              64
-# define VMOVA                 vmovdqa64
-# if DL_RUNIME_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
-#else
-strong_alias (_dl_runtime_resolve_avx, _dl_runtime_resolve_avx512)
-       .hidden _dl_runtime_resolve_avx512
-strong_alias (_dl_runtime_profile_avx, _dl_runtime_profile_avx512)
-       .hidden _dl_runtime_profile_avx512
-#endif
+#define VEC_SIZE               64
+#define VMOVA                  vmovdqa64
+#define VEC(i)                 zmm##i
+#define _dl_runtime_profile    _dl_runtime_profile_avx512
+#include "dl-trampoline.h"
+#undef _dl_runtime_profile
+#undef VEC
+#undef VMOVA
+#undef VEC_SIZE
 
 #define VEC_SIZE               32
 #define VMOVA                  vmovdqa
-#if DL_RUNIME_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_profile    _dl_runtime_profile_avx
 #include "dl-trampoline.h"
-#undef _dl_runtime_resolve
 #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_RUNIME_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_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 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