| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame^] | 1 | /* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. MIPS version. |
| 2 | Copyright (C) 1996, 1997, 2000 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, write to the Free |
| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 18 | 02111-1307 USA. */ |
| 19 | |
| 20 | /* This just does a tail-call to `__sigsetjmp (ARG, 1)'. |
| 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 <sys/regdef.h> |
| 25 | #include <sys/asm.h> |
| 26 | |
| 27 | #ifdef __PIC__ |
| 28 | .option pic2 |
| 29 | #endif |
| 30 | |
| 31 | .text |
| 32 | .global setjmp |
| 33 | .align 2; |
| 34 | .ent setjmp,0; |
| 35 | .type setjmp,@function |
| 36 | |
| 37 | setjmp: |
| 38 | .set noreorder |
| 39 | #ifdef __PIC__ |
| 40 | #if _MIPS_SIM == _MIPS_SIM_ABI32 |
| 41 | .cpload t9 |
| 42 | .set reorder |
| 43 | la t9, __sigsetjmp |
| 44 | #else /* N32 */ |
| 45 | .cpsetup t9, v0, setjmp |
| 46 | PTR_LA t9, __sigsetjmp |
| 47 | .cprestore |
| 48 | #endif /* N32 */ |
| 49 | #endif |
| 50 | li a1, 1 /* Pass a second argument of one. */ |
| 51 | #ifdef __PIC__ |
| 52 | jr t9 |
| 53 | #else |
| 54 | j __sigsetjmp |
| 55 | #endif |
| 56 | .end setjmp |