From 6ff6eb1350c00bde1e64eeabd676e477402d5b9c Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Thu, 11 Dec 2008 10:08:00 +0000 Subject: create arch-generic brk() based on blackfin one --- libc/sysdeps/linux/common/brk.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 libc/sysdeps/linux/common/brk.c (limited to 'libc/sysdeps/linux/common/brk.c') diff --git a/libc/sysdeps/linux/common/brk.c b/libc/sysdeps/linux/common/brk.c new file mode 100644 index 000000000..18836ba59 --- /dev/null +++ b/libc/sysdeps/linux/common/brk.c @@ -0,0 +1,32 @@ +/* + * Copyright (C) 2000-2006 Erik Andersen + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#include +#include +#include + +libc_hidden_proto(brk) + +#define __NR___syscall_brk __NR_brk +static inline _syscall1(void *, __syscall_brk, void *, end) + +/* This must be initialized data because commons can't have aliases. */ +void * __curbrk attribute_hidden = 0; + +int brk(void *addr) +{ + void *newbrk = __syscall_brk(addr); + + __curbrk = newbrk; + + if (newbrk < addr) { + __set_errno (ENOMEM); + return -1; + } + + return 0; +} +libc_hidden_def(brk) -- cgit v1.2.3