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77a4fbd536
This patch consolidates all the pread/pread64 implementation for Linux
in only one (sysdeps/unix/sysv/linux/pread.c). It also removes the
syscall from the auto-generation using assembly macros.
For pread{64} offset argument placement the new SYSCALL_LL{64} macro
is used. For pread ports that do not define __NR_pread will use
__NR_pread64 and for pread64 ports that dot define __NR_pread64 will
use __NR_pread for the syscall.
Checked on x86_64, x32, i386, aarch64, and ppc64le.
* sysdeps/unix/sysv/linux/arm/pread.c: Remove file.
* sysdeps/unix/sysv/linux/arm/pread64.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/pread.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/pread64.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/pread.c: Likewise,
* sysdeps/unix/sysv/linux/powerpc/powerpc32/pread64.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/pread64.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list (pread): Remove
syscall generation.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h
[__NR_pread64] (__NR_pread): Remove define.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h:
[__NR_pread64] (__NR_pread): Likewise.
* sysdeps/unix/sysv/linux/pread.c [__NR_pread64] (__NR_pread): Remove
define.
(__libc_pread): Use SYSCALL_LL macro on offset argument.
* sysdeps/unix/sysv/linux/pread64.c [__NR_pread64] (__NR_pread):
Remove define.
(__libc_pread64): Use SYSCALL_LL64 macro on offset argument.
* sysdeps/unix/sysv/linux/sh/pread.c: Rewrite using default
Linux implementation as base.
* sysdeps/unix/sysv/linux/sh/pread64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/pread.c: Likewise.
* sysdeps/unix/sysv/linux/mips/pread64.c: Likewise.
38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/* Copyright (C) 1997-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <unistd.h>
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#include <sysdep-cancel.h>
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#if __WORDSIZE != 64 || defined (__ASSUME_OFF_DIFF_OFF64)
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# ifndef __NR_pread
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# define __NR_pread __NR_pread64
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# endif
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ssize_t
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__libc_pread (int fd, void *buf, size_t count, off_t offset)
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{
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return SYSCALL_CANCEL (pread, fd, buf, count,
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__ALIGNMENT_ARG SYSCALL_LL (offset));
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}
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strong_alias (__libc_pread, __pread)
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weak_alias (__libc_pread, pread)
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#endif
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