projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| b168057a | 1 | /* Copyright (C) 1998-2015 Free Software Foundation, Inc. |
| a62da368 UD |
2 | This file is part of the GNU C Library. |
| 3 | ||
| 4 | The GNU C Library is free software; you can redistribute it and/or | |
| 3214b89b AJ |
5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either | |
| 7 | version 2.1 of the License, or (at your option) any later version. | |
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8 | |
| 9 | The GNU C Library is distributed in the hope that it will be useful, | |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 3214b89b | 12 | Lesser General Public License for more details. |
| a62da368 | 13 | |
| 3214b89b | 14 | You should have received a copy of the GNU Lesser General Public |
| ab84e3ff PE |
15 | License along with the GNU C Library. If not, see |
| 16 | <http://www.gnu.org/licenses/>. */ | |
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17 | |
| 18 | #include <sysdep.h> | |
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19 | |
| 20 | #define EINVAL 22 | |
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21 | |
| 22 | .text | |
| 23 | ||
| 24 | ENTRY (__mmap) | |
| 2c659124 | 25 | /* shuffle args */ |
| 55668624 | 26 | push { r5 } |
| 01b32e73 TS |
27 | cfi_adjust_cfa_offset (4) |
| 28 | cfi_rel_offset (r5, 0) | |
| 2c659124 | 29 | ldr r5, [sp, #8] |
| 55668624 | 30 | push { r4 } |
| 01b32e73 TS |
31 | cfi_adjust_cfa_offset (4) |
| 32 | cfi_rel_offset (r4, 0) | |
| 33 | cfi_remember_state | |
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34 | ldr r4, [sp, #8] |
| 35 | ||
| 36 | /* convert offset to pages */ | |
| 37 | movs ip, r5, lsl #20 | |
| 38 | bne .Linval | |
| 39 | mov r5, r5, lsr #12 | |
| 5556231d | 40 | |
| 2c659124 | 41 | /* do the syscall */ |
| de96d148 | 42 | DO_CALL (mmap2, 0) |
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43 | |
| 44 | /* restore registers */ | |
| 45 | 2: | |
| 55668624 | 46 | pop { r4 } |
| 01b32e73 TS |
47 | cfi_adjust_cfa_offset (-4) |
| 48 | cfi_restore (r4) | |
| 55668624 | 49 | pop { r5 } |
| 01b32e73 TS |
50 | cfi_adjust_cfa_offset (-4) |
| 51 | cfi_restore (r5) | |
| 2c659124 UD |
52 | |
| 53 | cmn r0, $4096 | |
| 6ccd0107 | 54 | it cc |
| 47f0752a | 55 | RETINSTR(cc, lr) |
| 2c659124 | 56 | b PLTJMP(syscall_error) |
| a62da368 | 57 | |
| 01b32e73 | 58 | cfi_restore_state |
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59 | .Linval: |
| 60 | mov r0, #-EINVAL | |
| 61 | b 2b | |
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62 | PSEUDO_END (__mmap) |
| 63 | ||
| 64 | weak_alias (__mmap, mmap) |