projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 847b055c AJ |
1 | /* setjmp for s390, ELF version. |
| 2 | Copyright (C) 2000 Free Software Foundation, Inc. | |
| 3 | Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). | |
| 4 | This file is part of the GNU C Library. | |
| 5 | ||
| 6 | The GNU C Library is free software; you can redistribute it and/or | |
| 41bdb6e2 AJ |
7 | modify it under the terms of the GNU Lesser General Public |
| 8 | License as published by the Free Software Foundation; either | |
| 9 | version 2.1 of the License, or (at your option) any later version. | |
| 847b055c AJ |
10 | |
| 11 | The GNU C Library is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 41bdb6e2 | 14 | Lesser General Public License for more details. |
| 847b055c | 15 | |
| 41bdb6e2 AJ |
16 | You should have received a copy of the GNU Lesser General Public |
| 17 | License along with the GNU C Library; if not, write to the Free | |
| 18 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
| 19 | 02111-1307 USA. */ | |
| 847b055c AJ |
20 | |
| 21 | #include <sysdep.h> | |
| 22 | #define _ASM | |
| 23 | #define _SETJMP_H | |
| 24 | #include <bits/setjmp.h> | |
| 25 | ||
| 26 | /* We include the BSD entry points here as well but we make | |
| 27 | them weak. */ | |
| 28 | ENTRY (setjmp) | |
| 29 | .weak C_SYMBOL_NAME (setjmp) | |
| 30 | lhi %r3,1 /* second argument of one */ | |
| ffeac417 | 31 | j .Linternal_sigsetjmp /* branch relativ to __sigsetjmp */ |
| 847b055c AJ |
32 | END (setjmp) |
| 33 | ||
| ffeac417 | 34 | /* Binary compatibility entry point. */ |
| 847b055c AJ |
35 | ENTRY(_setjmp) |
| 36 | .weak C_SYMBOL_NAME (_setjmp) | |
| ffeac417 | 37 | ENTRY(__setjmp) |
| 847b055c AJ |
38 | lhi %r3,0 /* second argument of zero */ |
| 39 | ||
| 40 | ENTRY(__sigsetjmp) | |
| ffeac417 | 41 | .Linternal_sigsetjmp: |
| 847b055c | 42 | stm %r6,%r15,0(%r2) /* store registers in jmp_buf */ |
| ffeac417 UD |
43 | std %f4,40(%r2) |
| 44 | std %f6,48(%r2) | |
| 847b055c AJ |
45 | #ifdef PIC |
| 46 | /* We cannot use the PLT, because it requires that %r12 be set, but | |
| 47 | we can't save and restore our caller's value. Instead, we do an | |
| 48 | indirect jump through the GOT. */ | |
| 49 | basr %r1,0 | |
| 50 | .L0: al %r1,.L1 - .L0(0,%r1) /* get address of global offset table */ | |
| 51 | /* get address of __sigjmp_save from got */ | |
| 52 | l %r1,__sigjmp_save@GOT12(0,%r1) | |
| 53 | br %r1 | |
| 54 | .L1: .long _GLOBAL_OFFSET_TABLE_ - .L0 | |
| 55 | #else | |
| 56 | basr %r1,0 | |
| 57 | .L0: l %r1,.L1-.L0(0,%r1) /* load address of __sigjmp_save */ | |
| 58 | br %r1 /* tail-call __sigjmp_save */ | |
| 59 | .L1: .long __sigjmp_save | |
| 60 | #endif | |
| 61 | END (__sigsetjmp) |