__longjmp.S 1.5 KB

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  1. /* Copyright (C) 2001, 2004 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. The GNU C Library is free software; you can redistribute it and/or
  4. modify it under the terms of the GNU Lesser General Public
  5. License as published by the Free Software Foundation; either
  6. version 2.1 of the License, or (at your option) any later version.
  7. The GNU C Library is distributed in the hope that it will be useful,
  8. but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  10. Lesser General Public License for more details.
  11. You should have received a copy of the GNU Lesser General Public
  12. License along with the GNU C Library; if not, write to the Free
  13. Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  14. 02111-1307 USA. */
  15. #include <features.h>
  16. #define _ASM
  17. #define _SETJMP_H
  18. #include <bits/setjmp.h>
  19. /* Jump to the position specified by ENV, causing the
  20. setjmp call there to return VAL, or 1 if VAL is 0.
  21. void __longjmp (__jmp_buf env, int val). */
  22. .global __longjmp
  23. .type __longjmp,%function
  24. __longjmp:
  25. /* Restore registers. */
  26. movq (JB_RBX*8)(%rdi),%rbx
  27. movq (JB_RBP*8)(%rdi),%rbp
  28. movq (JB_R12*8)(%rdi),%r12
  29. movq (JB_R13*8)(%rdi),%r13
  30. movq (JB_R14*8)(%rdi),%r14
  31. movq (JB_R15*8)(%rdi),%r15
  32. /* Set return value for setjmp. */
  33. test %esi,%esi
  34. mov $01,%eax
  35. cmove %eax,%esi
  36. mov %esi, %eax
  37. movq (JB_PC*8)(%rdi),%rdx
  38. movq (JB_RSP*8)(%rdi),%rsp
  39. jmpq *%rdx
  40. .size __longjmp,.-__longjmp
  41. libc_hidden_def(__longjmp)