projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 28f540f4 RM |
1 | /* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'. m68k version. |
| 2 | Copyright (C) 1994 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 Library General Public License as | |
| 7 | published by the Free Software Foundation; either version 2 of the | |
| 8 | 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 | Library General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Library General Public | |
| 16 | License along with the GNU C Library; see the file COPYING.LIB. If | |
| 17 | not, write to the Free Software Foundation, Inc., 675 Mass Ave, | |
| 18 | Cambridge, MA 02139, USA. */ | |
| 19 | ||
| 20 | /* This just does a tail-call to `__sigsetjmp (ARG, 0)'. | |
| 21 | We cannot do it in C because it must be a tail-call, so frame-unwinding | |
| 22 | in setjmp doesn't clobber the state restored by longjmp. */ | |
| 23 | ||
| 24 | #include <sysdep.h> | |
| 25 | ||
| bfc04a9f | 26 | #ifdef MOTOROLA_SYNTAX |
| 28f540f4 RM |
27 | #define d0 %d0 |
| 28 | #define d1 %d1 | |
| 7176f4e4 RM |
29 | #define PUSH(reg) move.l reg, -(%sp) |
| 30 | #define POP(reg) move.l (%sp)+, reg | |
| 31 | #define PUSH0 clr.l -(%sp) | |
| 28f540f4 RM |
32 | #else |
| 33 | #define PUSH(reg) movel reg, sp@- | |
| 34 | #define POP(reg) movel sp@+, reg | |
| 7176f4e4 | 35 | #define PUSH0 clrl sp@- |
| 28f540f4 RM |
36 | #endif |
| 37 | ||
| 38 | ENTRY (_setjmp) | |
| 39 | POP (d0) /* Pop return PC. */ | |
| 40 | POP (d1) /* Pop jmp_buf argument. */ | |
| 7176f4e4 | 41 | PUSH0 /* Push second argument of zero. */ |
| 28f540f4 RM |
42 | PUSH (d1) /* Push back first argument. */ |
| 43 | PUSH (d0) /* Push back return PC. */ | |
| 7176f4e4 RM |
44 | #ifdef PIC |
| 45 | bra.l C_SYMBOL_NAME (__sigsetjmp@PLTPC) | |
| 46 | #else | |
| 28f540f4 | 47 | jmp C_SYMBOL_NAME (__sigsetjmp) |
| 7176f4e4 | 48 | #endif |
| 6ed0492f | 49 | END (_setjmp) |