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/* consider this code LGPL - davidm */
/*
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include <unistd.h>
#include <sys/syscall.h>
#include <errno.h>
libc_hidden_proto(brk)
/* This must be initialized data because commons can't have aliases. */
extern void *__curbrk;
libc_hidden_proto(__curbrk)
void * __curbrk = 0;
libc_hidden_data_def(__curbrk)
int brk (void *addr)
{
void *newbrk;
__asm__ volatile ("movel %2,%/d1\n\t"
"moveq %1,%/d0\n\t"
"trap #0\n\t"
"movel %/d0,%0"
:"=g" (newbrk)
:"i" (__NR_brk),"g" (addr) : "%d0", "%d1");
__curbrk = newbrk;
if (newbrk < addr)
{
__set_errno (ENOMEM);
return -1;
}
return 0;
}
libc_hidden_def(brk)
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