| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame^] | 1 | /* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. ARM version. |
| 2 | Copyright (C) 1997, 1998 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 | #include <bits/arm_asm.h> |
| 21 | |
| 22 | /* This just does a tail-call to `__sigsetjmp (ARG, 1)'. |
| 23 | We cannot do it in C because it must be a tail-call, so frame-unwinding |
| 24 | in setjmp doesn't clobber the state restored by longjmp. */ |
| 25 | |
| 26 | .global setjmp |
| 27 | .type setjmp,%function |
| 28 | .align 2 |
| 29 | #if defined(THUMB1_ONLY) |
| 30 | .thumb_func |
| 31 | setjmp: |
| 32 | mov r1, #1 |
| 33 | #ifdef __PIC__ |
| 34 | ldr r3, .L_GOT |
| 35 | adr r2, .L_GOT |
| 36 | add r3, r2, r3 |
| 37 | |
| 38 | ldr r2, .L_GOT+4 /* __sigsetjmp */ |
| 39 | ldr r2, [r2, r3] |
| 40 | bx r2 |
| 41 | |
| 42 | .align 2 |
| 43 | .L_GOT: |
| 44 | .word _GLOBAL_OFFSET_TABLE_-.L_GOT |
| 45 | .word __sigsetjmp(GOT) |
| 46 | #else |
| 47 | ldr r2, =__sigsetjmp |
| 48 | bx r2 |
| 49 | .pool |
| 50 | #endif |
| 51 | #else |
| 52 | setjmp: |
| 53 | mov r1, #1 |
| 54 | #ifdef __PIC__ |
| 55 | b __sigsetjmp(PLT) |
| 56 | #else |
| 57 | b __sigsetjmp |
| 58 | #endif |
| 59 | #endif |
| 60 | |
| 61 | .size setjmp,.-setjmp |