From 9d263d72848fb561e104a21da3ffccf791078f2a Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sat, 14 Dec 2002 19:49:13 +0000 Subject: Update. 2002-12-14 Jakub Jelinek * dirent/bug-readdir1.c: Include unistd.h. --- nptl/sysdeps/unix/sysv/linux/pread64.c | 71 ++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 nptl/sysdeps/unix/sysv/linux/pread64.c (limited to 'nptl/sysdeps/unix/sysv/linux/pread64.c') diff --git a/nptl/sysdeps/unix/sysv/linux/pread64.c b/nptl/sysdeps/unix/sysv/linux/pread64.c new file mode 100644 index 0000000000..5abe5d1813 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/pread64.c @@ -0,0 +1,71 @@ +/* Copyright (C) 1997, 1998, 1999, 2000, 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 1997. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include +#include +#include + +#include +#include +#include +#include +#include + + +#ifndef __NR_pread64 /* Newer kernels renamed but it's the same. */ +# error "__NR_pread64 must be defined" +#endif + + +/* The order of hi, lo depends on endianness. */ +extern ssize_t __syscall_pread64 (int fd, void *__unbounded buf, size_t count, + off_t offset_hi, off_t offset_lo); + + +ssize_t +__libc_pread64 (fd, buf, count, offset) + int fd; + void *buf; + size_t count; + off64_t offset; +{ +#ifndef NOT_IN_libc + if (__builtin_expect (THREAD_GETMEM (THREAD_SELF, + header.data.multiple_threads) == 0, 1)) + return INLINE_SYSCALL (pread64, 5, fd, CHECK_N (buf, count), count, + __LONG_LONG_PAIR ((off_t) (offset >> 32), + (off_t) (offset & 0xffffffff))); + + int oldtype = LIBC_CANCEL_ASYNC (); +#endif + + ssize_t result = INLINE_SYSCALL (pread64, 5, fd, CHECK_N (buf, count), count, + __LONG_LONG_PAIR ((off_t) (offset >> 32), + (off_t) (offset + & 0xffffffff))); + +#ifndef NOT_IN_libc + LIBC_CANCEL_RESET (oldtype); +#endif + + return result; +} + +weak_alias (__libc_pread64, __pread64) +weak_alias (__libc_pread64, pread64) -- cgit v1.2.3-70-g09d2