| /* 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> |
| |
| /* Save the current program position in ENV and return 0. */ |
| int |
| #if defined BSD_SETJMP |
| # undef setjmp |
| # define savemask 1 |
| setjmp (jmp_buf env) |
| #elif defined BSD__SETJMP |
| # undef _setjmp |
| # define savemask 0 |
| _setjmp (jmp_buf env) |
| #else |
| __sigsetjmp (jmp_buf env, int savemask) |
| #endif |
| { |
| /* Save data registers D1 through D7. */ |
| asm volatile ("movem%.l %/d1-%/d7, %0" |
| : : "m" (env[0].__jmpbuf[0].__dregs[0])); |
| |
| /* Save return address in place of register A0. */ |
| env[0].__jmpbuf[0].__aregs[0] = __builtin_return_address (0); |
| |
| /* Save address registers A1 through A5. */ |
| asm volatile ("movem%.l %/a1-%/a5, %0" |
| : : "m" (env[0].__jmpbuf[0].__aregs[1])); |
| |
| /* Save caller's FP, not our own. */ |
| env[0].__jmpbuf[0].__fp = *(int **) __builtin_frame_address (0); |
| |
| /* Save caller's SP, not our own. */ |
| env[0].__jmpbuf[0].__sp = (int *) __builtin_frame_address (0) + 2; |
| |
| #if defined __HAVE_68881__ || defined __HAVE_FPU__ |
| /* Save floating-point (68881) registers FP0 through FP7. */ |
| asm volatile ("fmovem%.x %/fp0-%/fp7, %0" |
| : : "m" (env[0].__jmpbuf[0].__fpregs[0])); |
| #elif defined (__mcffpu__) |
| asm volatile ("fmovem %/fp0-%/fp7, %0" |
| : : "m" (env[0].__jmpbuf[0].__fpregs[0])); |
| #endif |
| |
| #if defined NOT_IN_libc && defined IS_IN_rtld |
| /* In ld.so we never save the signal mask. */ |
| return 0; |
| #else |
| /* Save the signal mask if requested. */ |
| return __sigjmp_save (env, savemask); |
| #endif |
| } |
| #if !defined BSD_SETJMP && !defined BSD__SETJMP |
| libc_hidden_def (__sigsetjmp) |
| #endif |