| /* Copyright (C) 1991-2014 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 (;;); |
| } |