| /* |
| * 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) |
| |
| #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) |