sysdeps/mips/jmpbuf-unwind.h

   1 /* Copyright (C) 2003, 2005, 2006 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   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
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <setjmp.h>
  20 #include <stdint.h>
  21 #include <unwind.h>
  22 #include <sysdep.h>
  23
  24 #define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
  25   _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
  26
  27 static inline uintptr_t __attribute__ ((unused))
  28 _jmpbuf_sp (__jmp_buf regs)
  29 {
  30   uintptr_t sp = regs[0].__sp;
  31 #ifdef PTR_DEMANGLE
  32   PTR_DEMANGLE (sp);
  33 #endif
  34   return sp;
  35 }
  36
  37 #define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
  38   ((uintptr_t) (_address) - (_adj) < _jmpbuf_sp (_jmpbuf) - (_adj))
  39
  40 /* We use the normal longjmp for unwinding.  */
  41 #define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)