sysdeps/nptl/jmp-unwind.c

   1 /* Clean up stack frames unwound by longjmp.  Linux version.
   2    Copyright (C) 1995-2015 Free Software Foundation, Inc.
   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 <stddef.h>
  21 #include <nptl/pthreadP.h>
  22
  23 extern void __pthread_cleanup_upto (__jmp_buf env, char *targetframe);
  24 #pragma weak __pthread_cleanup_upto
  25
  26
  27 void
  28 _longjmp_unwind (jmp_buf env, int val)
  29 {
  30 #ifdef SHARED
  31   if (__libc_pthread_functions_init)
  32     PTHFCT_CALL (ptr___pthread_cleanup_upto, (env->__jmpbuf,
  33                                               CURRENT_STACK_FRAME));
  34 #else
  35   if (__pthread_cleanup_upto != NULL)
  36     __pthread_cleanup_upto (env->__jmpbuf, CURRENT_STACK_FRAME);
  37 #endif
  38 }