From 0ecb606cb6cf65de1d9fc8a919bceb4be476c602 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Thu, 12 Jul 2007 18:26:36 +0000 Subject: 2.5-18.1 --- sysdeps/unix/sysv/linux/x86_64/brk.c | 43 +++++++++++++++++++++++++++++++++++- 1 file changed, 42 insertions(+), 1 deletion(-) (limited to 'sysdeps/unix/sysv/linux/x86_64/brk.c') diff --git a/sysdeps/unix/sysv/linux/x86_64/brk.c b/sysdeps/unix/sysv/linux/x86_64/brk.c index 09b7dd4707..8b18c4dbb9 100644 --- a/sysdeps/unix/sysv/linux/x86_64/brk.c +++ b/sysdeps/unix/sysv/linux/x86_64/brk.c @@ -1 +1,42 @@ -#include +/* brk system call for Linux/x86_64. + Copyright (C) 1995, 1996, 2000, 2001, 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., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include +#include +#include + +/* This must be initialized data because commons can't have aliases. */ +void *__curbrk = 0; + +int +__brk (void *addr) +{ + void *newbrk; + + __curbrk = newbrk = (void *) INLINE_SYSCALL (brk, 1, addr); + + if (newbrk < addr) + { + __set_errno (ENOMEM); + return -1; + } + + return 0; +} +weak_alias (__brk, brk) -- cgit 1.4.1