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/*
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include <errno.h>
#include <unistd.h>
#include <sys/syscall.h>
libc_hidden_proto(brk)
/* This must be initialized data because commons can't have aliases. */
void * __curbrk attribute_hidden = 0;
int brk (void *addr)
{
void *newbrk;
__asm__ __volatile__(
"P0 = %2;\n\t"
"excpt 0;\n\t"
: "=q0" (newbrk)
: "q0" (addr), "i" (__NR_brk): "P0" );
__curbrk = newbrk;
if (newbrk < addr)
{
__set_errno (ENOMEM);
return -1;
}
return 0;
}
libc_hidden_def(brk)
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