| Daniel Jacobowitz | 3842dac | 2008-02-04 17:16:37 -0700 | [diff] [blame] | 1 | /* libunwind - a platform-independent unwind library |
| 2 | Copyright (C) 2008 CodeSourcery |
| 3 | |
| 4 | This file is part of libunwind. |
| 5 | |
| 6 | Permission is hereby granted, free of charge, to any person obtaining |
| 7 | a copy of this software and associated documentation files (the |
| 8 | "Software"), to deal in the Software without restriction, including |
| 9 | without limitation the rights to use, copy, modify, merge, publish, |
| 10 | distribute, sublicense, and/or sell copies of the Software, and to |
| 11 | permit persons to whom the Software is furnished to do so, subject to |
| 12 | the following conditions: |
| 13 | |
| 14 | The above copyright notice and this permission notice shall be |
| 15 | included in all copies or substantial portions of the Software. |
| 16 | |
| 17 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 18 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 19 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 20 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
| 21 | LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| 22 | OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| 23 | WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ |
| 24 | |
| 25 | #include "offsets.h" |
| 26 | #include <endian.h> |
| 27 | |
| 28 | .text |
| 29 | |
| 30 | #if _MIPS_SIM == _ABIO32 |
| 31 | # if __BYTE_ORDER == __BIG_ENDIAN |
| 32 | # define OFFSET 4 |
| 33 | # else |
| 34 | # define OFFSET 0 |
| 35 | # endif |
| 36 | # define SREG(X) \ |
| 37 | sw $X, (LINUX_UC_MCONTEXT_GREGS + 8 * X + OFFSET) ($4); \ |
| 38 | sra $1, $X, 31; \ |
| 39 | sw $1, (LINUX_UC_MCONTEXT_GREGS + 8 * X + 4 - OFFSET) ($4) |
| 40 | #else |
| 41 | # define SREG(X) sd $X, (LINUX_UC_MCONTEXT_GREGS + 8 * X) ($4) |
| 42 | #endif |
| 43 | |
| 44 | .global _Umips_getcontext |
| 45 | .type _Umips_getcontext, %function |
| 46 | # This is a stub version of getcontext() for MIPS which only stores core |
| 47 | # registers. |
| 48 | _Umips_getcontext: |
| 49 | .set noat |
| 50 | SREG (1) |
| 51 | SREG (0) |
| 52 | SREG (2) |
| 53 | SREG (3) |
| 54 | SREG (4) |
| 55 | SREG (5) |
| 56 | SREG (6) |
| 57 | SREG (7) |
| 58 | SREG (8) |
| 59 | SREG (9) |
| 60 | SREG (10) |
| 61 | SREG (11) |
| 62 | SREG (12) |
| 63 | SREG (13) |
| 64 | SREG (14) |
| 65 | SREG (15) |
| 66 | SREG (16) |
| 67 | SREG (17) |
| 68 | SREG (18) |
| 69 | SREG (19) |
| 70 | SREG (20) |
| 71 | SREG (21) |
| 72 | SREG (22) |
| 73 | SREG (23) |
| 74 | SREG (24) |
| 75 | SREG (25) |
| 76 | SREG (26) |
| 77 | SREG (27) |
| 78 | SREG (28) |
| 79 | SREG (29) |
| 80 | SREG (30) |
| 81 | SREG (31) |
| 82 | li $2, 0 |
| 83 | j $31 |
| 84 | |
| 85 | .size _Umips_getcontext, .-_Umips_getcontext |