1234567891011121314151617181920212223242526272829303132333435363738394041 |
- /* brk system call for Linux/Xtensa.
- Copyright (C) 1996, 1997, 2005, 2007 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, see
- <http://www.gnu.org/licenses/>. */
- #include <errno.h>
- #include <unistd.h>
- #include <sys/syscall.h>
- /* This must be initialized data because commons can't have aliases. */
- void *__curbrk attribute_hidden = 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;
- }
- libc_hidden_def(brk)
|