/* * 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)