| /* brk system call for Linux/am33. |
| Copyright (C) 1995, 1996, 2000 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Alexandre Oliva <aoliva@redhat.com>. |
| Based on ../i386/brk.c. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Library General Public License as |
| published by the Free Software Foundation; either version 2 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 |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public |
| License along with the GNU C Library; see the file COPYING.LIB. If not, |
| write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include <errno.h> |
| #include <unistd.h> |
| #include <sysdep.h> |
| |
| /* This must be initialized data because commons can't have aliases. */ |
| void *__curbrk = 0; |
| |
| int |
| __brk (void *addr) |
| { |
| void *newbrk; |
| |
| newbrk = INLINE_SYSCALL (brk, 1, __ptrvalue (addr)); |
| |
| __curbrk = newbrk; |
| |
| if (newbrk < addr) |
| { |
| __set_errno (ENOMEM); |
| return -1; |
| } |
| |
| return 0; |
| } |
| weak_alias (__brk, brk) |
