/* * fallocate() for uClibc - based off posix_fallocate() by Erik Andersen * http://www.opengroup.org/onlinepubs/9699919799/functions/posix_fallocate.html * * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> * * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball. */ #include <sys/syscall.h> #include <fcntl.h> #include <bits/kernel-features.h> #include <stdint.h> #include <errno.h> #if defined __NR_fallocate # if __WORDSIZE == 64 /* Can use normal fallocate() */ # elif __WORDSIZE == 32 extern __typeof(fallocate64) __libc_fallocate64 attribute_hidden; int attribute_hidden __libc_fallocate64(int fd, int mode, __off64_t offset, __off64_t len) { int ret; INTERNAL_SYSCALL_DECL(err); ret = (int) (INTERNAL_SYSCALL(fallocate, err, 6, fd, mode, OFF64_HI_LO (offset), OFF64_HI_LO (len))); if (unlikely(INTERNAL_SYSCALL_ERROR_P (ret, err))) { __set_errno(INTERNAL_SYSCALL_ERRNO (ret, err)); ret = -1; } return ret; } # if defined __UCLIBC_LINUX_SPECIFIC__ && defined __USE_GNU strong_alias(__libc_fallocate64,fallocate64) # endif # else # error your machine is neither 32 bit or 64 bit ... it must be magical # endif #endif