1 /* brk system call for Linux/Nios2.
2 Copyright (C) 1995, 1996, 2000 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
20 #include <sys/syscall.h>
23 /* This must be initialized data because commons can't have aliases. */
24 void *__curbrk attribute_hidden = 0;
29 register int g1 __asm__("%g1") = __NR_brk;
30 register void *o0 __asm__("%o0") = addr;
32 __asm__ __volatile__ ("trap 63\n\t" : "=r"(newbrk) : "0"(o0), "r"(g1));