/* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1997, 2009 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 <stdlib.h> /* Jump to the position specified by ENV, causing the setjmp call there to return VAL, or 1 if VAL is 0. */ void __longjmp (__jmp_buf env, int val) { /* This restores the FP and SP that setjmp's caller had, and puts the return address into A0 and VAL into D0. */ #ifdef CHECK_SP CHECK_SP (env[0].__sp); #endif #if defined(__HAVE_68881__) || defined(__HAVE_FPU__) /* Restore the floating-point registers. */ asm volatile("fmovem%.x %0, %/fp0-%/fp7" : /* No outputs. */ : "g" (env[0].__fpregs[0])); #elif defined (__mcffpu__) asm volatile("fmovem %0, %/fp0-%/fp7" : /* No outputs. */ : "m" (env[0].__fpregs[0])); #endif /* Put VAL in D0. */ asm volatile("move%.l %0, %/d0" : /* No outputs. */ : "g" (val == 0 ? 1 : val) : "d0"); asm volatile(/* Restore the data and address registers. */ "movem%.l %0, %/d1-%/d7/%/a0-%/a7\n" /* Return to setjmp's caller. */ #ifdef __motorola__ "jmp (%/a0)" #else "jmp %/a0@" #endif : /* No outputs. */ : "g" (env[0].__dregs[0]) /* We don't bother with the clobbers, because this code always jumps out anyway. */ ); /* Avoid `volatile function does return' warnings. */ for (;;); }