| /* brk system call for Linux/ppc. |
| Copyright (C) 1995-97, 1999, 2000, 2006 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA |
| 02110-1301 USA. */ |
| |
| #include <sysdep.h> |
| #define _ERRNO_H 1 |
| #include <bits/errno.h> |
| #include <bp-sym.h> |
| #include <bp-asm.h> |
| |
| .comm __curbrk,4,4 |
| .section ".text" |
| ENTRY (BP_SYM (__brk)) |
| DISCARD_BOUNDS (r3) /* the bounds are meaningless, so toss 'em */ |
| mflr r0 |
| stwu r1,-16(r1) |
| cfi_adjust_cfa_offset (16) |
| stw r3,8(r1) |
| stw r0,20(r1) |
| cfi_offset (lr, 4) |
| DO_CALL(SYS_ify(brk)) |
| lwz r6,8(r1) |
| #ifdef PIC |
| bcl 20,31,1f |
| 1: mflr r5 |
| addis r5,r5,__curbrk-1b@ha |
| stw r3,__curbrk-1b@l(r5) |
| #else |
| lis r4,__curbrk@ha |
| stw r3,__curbrk@l(r4) |
| #endif |
| lwz r0,20(r1) |
| cmplw r6,r3 |
| addi r1,r1,16 |
| mtlr r0 |
| li r3,0 |
| blelr+ |
| li r3,ENOMEM |
| b __syscall_error@local |
| END (BP_SYM (__brk)) |
| |
| weak_alias (BP_SYM (__brk), BP_SYM (brk)) |
