| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* Copyright (C) 1997-2015 Free Software Foundation, Inc. |
| 2 | |
| 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 License as |
| 7 | published by the Free Software Foundation; either version 2.1 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 | 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, see |
| 17 | <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #include <sysdep.h> |
| 20 | |
| 21 | /* This source produces 3 functions: |
| 22 | __sigsetjmp (jmpbuf,savemask) |
| 23 | setjmp (jmpbuf) - equivalent to __sigsetjump (jmpbuf, 1) |
| 24 | _setjmp (jmpbuf) - equivalent to __sigsetjump (jmpbuf, 0) |
| 25 | */ |
| 26 | |
| 27 | #ifndef setjmp_name |
| 28 | # define setjmp_name __sigsetjmp |
| 29 | # define SET_MASK_ARG |
| 30 | #else |
| 31 | # define SET_MASK_ARG addik r6,r0,SAVEMASK |
| 32 | #endif |
| 33 | |
| 34 | ENTRY (setjmp_name) |
| 35 | swi r1,r5,0 |
| 36 | swi r2,r5,4 |
| 37 | swi r13,r5,8 |
| 38 | swi r14,r5,12 |
| 39 | swi r15,r5,16 |
| 40 | swi r16,r5,20 |
| 41 | swi r17,r5,24 |
| 42 | swi r18,r5,28 |
| 43 | swi r19,r5,32 |
| 44 | swi r20,r5,36 |
| 45 | swi r21,r5,40 |
| 46 | swi r22,r5,44 |
| 47 | swi r23,r5,48 |
| 48 | swi r24,r5,52 |
| 49 | swi r25,r5,56 |
| 50 | swi r26,r5,60 |
| 51 | swi r27,r5,64 |
| 52 | swi r28,r5,68 |
| 53 | swi r29,r5,72 |
| 54 | swi r30,r5,76 |
| 55 | swi r31,r5,80 |
| 56 | |
| 57 | SET_MASK_ARG |
| 58 | |
| 59 | /* Make a tail call to __sigjmp_save; it takes the same args. */ |
| 60 | #ifdef PIC |
| 61 | /* We cannot use the PLT, because it requires that r20 be set, but |
| 62 | we can't save and restore our caller's value. Instead, we do an |
| 63 | indirect jump through the GOT, using the temporary register |
| 64 | %ecx, which is call-clobbered. */ |
| 65 | mfs r12,rpc |
| 66 | addik r12,r12,_GLOBAL_OFFSET_TABLE_+8 |
| 67 | lwi r12,r12,__sigjmp_save@GOT |
| 68 | brad r12 |
| 69 | #else |
| 70 | brid __sigjmp_save |
| 71 | #endif |
| 72 | nop |
| 73 | END (setjmp_name) |
| 74 | |
| 75 | libc_hidden_def (setjmp_name) |