| /* Copyright (C) 2003-2016 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <setjmp.h> |
| #include <stdint.h> |
| #include <unwind.h> |
| |
| /* Test if longjmp to JMPBUF would unwind the frame containing a local |
| variable at ADDRESS. */ |
| #define _JMPBUF_UNWINDS(_jmpbuf, _address, _demangle) \ |
| ((void *) (_address) < (void *) (((long int *) _jmpbuf)[0])) |
| |
| #define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \ |
| ({ uintptr_t _cfa = (uintptr_t) _Unwind_GetCFA (_context) - (_adj); \ |
| (_cfa < (uintptr_t)(((long *)(_jmpbuf))[0]) - (_adj) \ |
| || (_cfa == (uintptr_t)(((long *)(_jmpbuf))[0]) - (_adj) \ |
| && (uintptr_t) _Unwind_GetBSP (_context) - (_adj) \ |
| >= (uintptr_t)(((long *)(_jmpbuf))[17]) - (_adj))); \ |
| }) |
| |
| #define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \ |
| ((uintptr_t)(_address) - (_adj) < (uintptr_t)(((long *)_jmpbuf)[0]) - (_adj)) |
| |
| /* We use a longjmp() which can cross from the alternate signal-stack |
| to the normal stack. */ |
| extern void __libc_unwind_longjmp (sigjmp_buf env, int val) |
| __attribute__ ((noreturn)); |
| hidden_proto (__libc_unwind_longjmp) |