jmpbuf-unwind.h 872 B

1234567891011121314151617181920212223242526272829
  1. /*
  2. * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
  3. *
  4. * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
  5. */
  6. #include <setjmp.h>
  7. #include <jmpbuf-offsets.h>
  8. /* Test if longjmp to JMPBUF would unwind the frame
  9. containing a local variable at ADDRESS. */
  10. #if __WORDSIZE == 64
  11. # define _JMPBUF_UNWINDS(jmpbuf, address) \
  12. ((void *) (address) < (void *) (jmpbuf)[JB_RSP])
  13. #else
  14. # define _JMPBUF_UNWINDS(jmpbuf, address) \
  15. ((void *) (address) < (void *) (jmpbuf)[JB_SP])
  16. #endif
  17. #ifdef __UCLIBC_HAS_THREADS_NATIVE__
  18. #include <stdint.h>
  19. #include <unwind.h>
  20. #define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
  21. _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
  22. #define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
  23. ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf)[JB_RSP] - (_adj))
  24. #endif