text: /* Copyright (C) 2003-2015 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 <jmpbuf-offsets.h>
  #include <stdint.h>
  #include <unwind.h>
  #include <bits/wordsize.h>
  #include <sysdep.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)->__gregs[__JB_GPR15]))
  
  
  /* On s390{,x}, CFA is always 96 (resp. 160) bytes above actual
     %r15.  */
  #define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
    _JMPBUF_UNWINDS_ADJ (_jmpbuf,					\
  		       (void *) (_Unwind_GetCFA (_context)	\
  				 - 32 - 2 * __WORDSIZE), _adj)
  
  static inline uintptr_t __attribute__ ((unused))
  _jmpbuf_sp (__jmp_buf regs)
  {
    void *sp = (void *) (uintptr_t) regs[0].__gregs[__JB_GPR15];
  #ifdef PTR_DEMANGLE
    PTR_DEMANGLE (sp);
  #endif
    return (uintptr_t) sp;
  }
  
  #define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
    ((uintptr_t) (_address) - (_adj) < _jmpbuf_sp (_jmpbuf) - (_adj))
  
  /* We use the normal longjmp for unwinding.  */
  #define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)
  