sigcontextinfo.h 2.2 KB

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  1. /* Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
  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 SIGCONTEXT struct sigcontext
  17. #define SIGCONTEXT_EXTRA_ARGS
  18. #define GET_PC(ctx) ((void *) ctx.eip)
  19. #define GET_FRAME(ctx) ((void *) ctx.ebp)
  20. #define GET_STACK(ctx) ((void *) ctx.esp_at_signal)
  21. #define CALL_SIGHANDLER(handler, signo, ctx) \
  22. do { \
  23. int __tmp1, __tmp2, __tmp3, __tmp4; \
  24. __asm __volatile ("movl\t%%esp, %%edi\n\t" \
  25. "andl\t$-16, %%esp\n\t" \
  26. "subl\t%8, %%esp\n\t" \
  27. "movl\t%%edi, %c8-4(%%esp)\n\t" \
  28. "movl\t%1, 0(%%esp)\n\t" \
  29. "leal\t4(%%esp), %%edi\n\t" \
  30. "cld\n\t" \
  31. "rep\tmovsl\n\t" \
  32. "call\t*%0\n\t" \
  33. "cld\n\t" \
  34. "movl\t%9, %%ecx\n\t" \
  35. "subl\t%%edi, %%esi\n\t" \
  36. "leal\t4(%%esp,%%esi,1), %%edi\n\t" \
  37. "leal\t4(%%esp), %%esi\n\t" \
  38. "rep\tmovsl\n\t" \
  39. "movl\t%c8-4(%%esp), %%esp\n\t" \
  40. : "=a" (__tmp1), "=d" (__tmp2), "=S" (__tmp3), \
  41. "=c" (__tmp4) \
  42. : "0" (handler), "1" (signo), "2" (&ctx), \
  43. "3" (sizeof (struct sigcontext) / 4), \
  44. "n" ((sizeof (struct sigcontext) + 19) & ~15), \
  45. "i" (sizeof (struct sigcontext) / 4) \
  46. : "cc", "edi"); \
  47. } while (0)