libc/sysdeps/linux/arc/jmpbuf-unwind.h

   1 /*
   2  * Copyright (C) 2013 Synopsys, Inc. (www.synopsys.com)
   3  *
   4  * Licensed under LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
   5  */
   6
   7 #include <setjmp.h>
   8 #include <jmpbuf-offsets.h>
   9
  10 /* Test if longjmp to JMPBUF would unwind the frame
  11    containing a local variable at ADDRESS.  */
  12 #define _JMPBUF_UNWINDS(jmpbuf, address) \
  13   ((void *) (address) < (void *) (jmpbuf[__JMP_BUF_SP]))
  14
  15 #ifdef __UCLIBC_HAS_THREADS_NATIVE__
  16 #include <stdint.h>
  17 #include <unwind.h>
  18
  19 #define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
  20   _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
  21
  22 #define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
  23   ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf)[__JMP_BUF_SP] - (_adj))
  24 #endif