bsd-setjmp.S 1.4 KB

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  1. /* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. SH version.
  2. Copyright (C) 1999-2019 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, see
  14. <http://www.gnu.org/licenses/>. */
  15. /* This just does a tail-call to `__sigsetjmp (ARG, 1)'.
  16. We cannot do it in C because it must be a tail-call, so frame-unwinding
  17. in setjmp doesn't clobber the state restored by longjmp. */
  18. #include <sysdep.h>
  19. ENTRY (setjmp)
  20. #ifdef SHARED
  21. mova 1f, r0
  22. mov.l 1f, r1
  23. bra 2f
  24. add r1, r0
  25. .align 2
  26. 1:
  27. .long _GLOBAL_OFFSET_TABLE_
  28. 2:
  29. mov.l 3f, r1
  30. mov.l @(r0,r1), r1
  31. jmp @r1
  32. mov #1, r5
  33. .align 2
  34. 3:
  35. .long C_SYMBOL_NAME(__sigsetjmp@GOT)
  36. #else
  37. mov.l 1f, r1
  38. jmp @r1
  39. mov #1, r5
  40. .align 2
  41. 1:
  42. .long C_SYMBOL_NAME(__sigsetjmp)
  43. #endif
  44. END (setjmp)