/* vi: set sw=4 ts=4: */ /* * posix_fadvise() for MIPS uClibc * http://www.opengroup.org/onlinepubs/009695399/functions/posix_fadvise.html * * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> * * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ #include <features.h> #include <unistd.h> #include <errno.h> #include <endian.h> #include <stdint.h> #include <sys/types.h> #include <sys/syscall.h> #include <fcntl.h> int posix_fadvise(int fd, off_t offset, off_t len, int advice) { /* MIPS kernel only has NR_fadvise64 which acts as NR_fadvise64_64 */ #ifdef __NR_fadvise64 INTERNAL_SYSCALL_DECL(err); # if _MIPS_SIM == _ABIO32 int ret = INTERNAL_SYSCALL(fadvise64, err, 7, fd, 0, __LONG_LONG_PAIR ((long) (offset >> 31), (long) offset), __LONG_LONG_PAIR ((long) (len >> 31), (long) len), advice); # else /* N32 || N64 */ int ret = INTERNAL_SYSCALL(fadvise64, err, 4, fd, offset, len, advice); # endif if (INTERNAL_SYSCALL_ERROR_P (ret, err)) return INTERNAL_SYSCALL_ERRNO (ret, err); return 0; #else return ENOSYS; #endif }