setjmp.S 1.6 KB

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  1. /* setjmp for x86-64.
  2. Copyright (C) 2001, 2003 Free Software Foundation, Inc.
  3. This file is part of the GNU C Library.
  4. The GNU C Library is free software; you can redistribute it and/or
  5. modify it under the terms of the GNU Lesser General Public
  6. License as published by the Free Software Foundation; either
  7. version 2.1 of the License, or (at your option) any later version.
  8. The GNU C Library is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11. Lesser General Public License for more details.
  12. You should have received a copy of the GNU Lesser General Public
  13. License along with the GNU C Library; if not, write to the Free
  14. Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  15. 02111-1307 USA. */
  16. #define _ASM
  17. #define _SETJMP_H
  18. #include <bits/setjmp.h>
  19. #include <sysdep.h>
  20. .global __sigsetjmp
  21. .type __sigsetjmp,%function
  22. __sigsetjmp:
  23. /* Save registers. */
  24. movq %rbx, (JB_RBX*8)(%rdi)
  25. movq %rbp, (JB_RBP*8)(%rdi)
  26. movq %r12, (JB_R12*8)(%rdi)
  27. movq %r13, (JB_R13*8)(%rdi)
  28. movq %r14, (JB_R14*8)(%rdi)
  29. movq %r15, (JB_R15*8)(%rdi)
  30. leaq 8(%rsp), %rdx /* Save SP as it will be after we return. */
  31. movq %rdx, (JB_RSP*8)(%rdi)
  32. movq (%rsp), %rax /* Save PC we are returning to now. */
  33. movq %rax, (JB_PC*8)(%rdi)
  34. /* Make a tail call to __sigjmp_save; it takes the same args. */
  35. #ifdef __PIC__
  36. jmp __sigjmp_save@PLT
  37. #else
  38. jmp __sigjmp_save
  39. #endif
  40. .size __sigsetjmp,.-__sigsetjmp
  41. libc_hidden_def(__sigsetjmp)