[thirdparty/glibc.git] / sysdeps / nios2 / jmpbuf-unwind.h

/* Examine __jmp_buf for unwinding frames.  Nios II version.
   Copyright (C) 2005-2016 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   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 <jmpbuf-offsets.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 *) demangle (jmpbuf[JB_SP]))

#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
  _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)

#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
  ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf_sp (_jmpbuf) - (_adj)))

/* We use the normal longjmp for unwinding.  */
#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)
Commit	Line	Data
522e6ee3	1	/* Examine __jmp_buf for unwinding frames. Nios II version.
f7a9f785	2	Copyright (C) 2005-2016 Free Software Foundation, Inc.
522e6ee3 CLT	3	This file is part of the GNU C Library.
	4
	5	The GNU C Library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
	9
	10	The GNU C Library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public
	16	License along with the GNU C Library. If not, see
	17	<http://www.gnu.org/licenses/>. */
	18
	19	#include <setjmp.h>
	20	#include <jmpbuf-offsets.h>
	21	#include <stdint.h>
	22	#include <unwind.h>
	23
	24	/* Test if longjmp to JMPBUF would unwind the frame
	25	containing a local variable at ADDRESS. */
	26
	27	#define _JMPBUF_UNWINDS(jmpbuf, address, demangle) \
	28	((void ) (address) < (void ) demangle (jmpbuf[JB_SP]))
	29
	30	#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
	31	_JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
	32
	33	#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
	34	((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf_sp (_jmpbuf) - (_adj)))
	35
	36	/* We use the normal longjmp for unwinding. */
	37	#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)