projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 4cca6b86 UD |
1 | /* brk system call for Linux/ppc. |
| 2 | Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. | |
| 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 Library General Public License as | |
| 7 | published by the Free Software Foundation; either version 2 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 | Library General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Library General Public | |
| 16 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
| 17 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 18 | Boston, MA 02111-1307, USA. */ | |
| 19 | ||
| 20 | #include <sysdep.h> | |
| 9a0a462c UD |
21 | #define _ERRNO_H 1 |
| 22 | #include <bits/errno.h> | |
| 23 | ||
| 24 | .comm __curbrk,4,4 | |
| 25 | .section ".text" | |
| 26 | ENTRY(__brk) | |
| 27 | stwu %r1,-16(%r1) | |
| 28 | stw %r3,8(%r1) | |
| 29 | DO_CALL(SYS_ify(brk)) | |
| 30 | lwz %r6,8(%r1) | |
| 31 | #ifdef PIC | |
| 32 | mflr %r4 | |
| 33 | bl _GLOBAL_OFFSET_TABLE_@local-4 | |
| 34 | mflr %r5 | |
| 35 | lwz %r5,__curbrk@got(%r5) | |
| 36 | mtlr %r4 | |
| 37 | stw %r3,0(%r5) | |
| 38 | #else | |
| 39 | stw %r3,__curbrk@sdarel(%r13) | |
| 40 | #endif | |
| 41 | cmplw %r6,%r3 | |
| 42 | addi %r1,%r1,16 | |
| 43 | li %r3,0 | |
| 44 | blelr+ | |
| 45 | li %r3,ENOMEM | |
| 46 | b JUMPTARGET(__syscall_error) | |
| 47 | END (__brk) | |
| 4cca6b86 | 48 | |
| 4cca6b86 | 49 | weak_alias (__brk, brk) |