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4cca6b86 | 1 | /* brk system call for Linux/ppc. |
688903eb | 2 | Copyright (C) 1995-2018 Free Software Foundation, Inc. |
4cca6b86 UD |
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 | |
41bdb6e2 AJ |
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. | |
4cca6b86 UD |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
4cca6b86 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
4cca6b86 UD |
18 | |
19 | #include <sysdep.h> | |
9a0a462c UD |
20 | #define _ERRNO_H 1 |
21 | #include <bits/errno.h> | |
22 | ||
23 | .comm __curbrk,4,4 | |
24 | .section ".text" | |
b5510883 | 25 | ENTRY (__brk) |
a7e91561 | 26 | mflr r0 |
acf47bbe | 27 | stwu r1,-16(r1) |
a7e91561 | 28 | cfi_adjust_cfa_offset (16) |
acf47bbe | 29 | stw r3,8(r1) |
a7e91561 UD |
30 | stw r0,20(r1) |
31 | cfi_offset (lr, 4) | |
9a0a462c | 32 | DO_CALL(SYS_ify(brk)) |
acf47bbe | 33 | lwz r6,8(r1) |
9a0a462c | 34 | #ifdef PIC |
91d2a845 WS |
35 | SETUP_GOT_ACCESS(r5,got_label) |
36 | addis r5,r5,__curbrk-got_label@ha | |
37 | stw r3,__curbrk-got_label@l(r5) | |
9a0a462c | 38 | #else |
053cc7bb | 39 | lis r4,__curbrk@ha |
9b6a9cee | 40 | stw r3,__curbrk@l(r4) |
9a0a462c | 41 | #endif |
a7e91561 | 42 | lwz r0,20(r1) |
acf47bbe UD |
43 | cmplw r6,r3 |
44 | addi r1,r1,16 | |
a7e91561 | 45 | mtlr r0 |
acf47bbe | 46 | li r3,0 |
9a0a462c | 47 | blelr+ |
acf47bbe | 48 | li r3,ENOMEM |
b0e196a4 | 49 | b __syscall_error@local |
b5510883 | 50 | END (__brk) |
4cca6b86 | 51 | |
b5510883 | 52 | weak_alias (__brk, brk) |