libgcc/config/i386/resms64x.h

   1 /* Epilogue stub for 64-bit ms/sysv clobbers: restore and return
   2    Copyright (C) 2016-2022 Free Software Foundation, Inc.
   3    Contributed by Daniel Santos <daniel.santos@pobox.com>
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 3, or (at your option)
  10 any later version.
  11
  12 GCC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 Under Section 7 of GPL version 3, you are granted additional
  18 permissions described in the GCC Runtime Library Exception, version
  19 3.1, as published by the Free Software Foundation.
  20
  21 You should have received a copy of the GNU General Public License and
  22 a copy of the GCC Runtime Library Exception along with this program;
  23 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  24 <http://www.gnu.org/licenses/>.  */
  25
  26 #include <cet.h>
  27
  28 #ifdef __x86_64__
  29 #include "i386-asm.h"
  30
  31 /* Epilogue routine for restoring 64-bit ms/sysv registers and returning from
  32  * function.  */
  33
  34         .text
  35         cfi_startproc()
  36         cfi_def_cfa(%r10, 8)
  37 MS2SYSV_STUB_BEGIN(resms64x_18)
  38         mov     -0x70(%rsi),%r15
  39 MS2SYSV_STUB_BEGIN(resms64x_17)
  40         mov     -0x68(%rsi),%r14
  41 MS2SYSV_STUB_BEGIN(resms64x_16)
  42         mov     -0x60(%rsi),%r13
  43 MS2SYSV_STUB_BEGIN(resms64x_15)
  44         mov     -0x58(%rsi),%r12
  45 MS2SYSV_STUB_BEGIN(resms64x_14)
  46         mov     -0x50(%rsi),%rbp
  47 MS2SYSV_STUB_BEGIN(resms64x_13)
  48         mov     -0x48(%rsi),%rbx
  49 MS2SYSV_STUB_BEGIN(resms64x_12)
  50         mov     -0x40(%rsi),%rdi
  51         SSE_RESTORE
  52         mov     -0x38(%rsi),%rsi
  53         mov     %r10,%rsp
  54         cfi_def_cfa_register(%rsp)
  55         ret
  56         cfi_endproc()
  57 MS2SYSV_STUB_END(resms64x_12)
  58 MS2SYSV_STUB_END(resms64x_13)
  59 MS2SYSV_STUB_END(resms64x_14)
  60 MS2SYSV_STUB_END(resms64x_15)
  61 MS2SYSV_STUB_END(resms64x_16)
  62 MS2SYSV_STUB_END(resms64x_17)
  63 MS2SYSV_STUB_END(resms64x_18)
  64
  65 #endif /* __x86_64__ */
  66
  67 #if defined(__ELF__) && defined(__linux__)
  68         .section .note.GNU-stack,"",@progbits
  69         .previous
  70 #endif