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827b823783
This patch adds internal alias for __pread, __pread64, and __pwrite
following the already in place one for __pwrite64. This is not used
in any implementation but on microblaze on preadv/pwritev fallback
(since it does not define __ASSUME_PREADV).
In fact it was signaled by commit c35db50ff5 which update the expected
localptl.data for the architecture based on resulted value. This patch
updates the plt for microblaze now that p{read,write}{64} are correctly
routed to use internal alias.
Checked on x86_64-linux-gnu and a build for all supported architectures
(no all variants although).
* include/unistd.h (__pread): Add libc_hidden_proto.
(__pread64): Likewise.
(__pwrite): Likewise.
* sysdeps/unix/sysv/linux/microblaze/localplt.data [libc.so]
(__pread64): Remove.
* sysdeps/unix/sysv/linux/pread.c (__pread64): Add libc_hidden_weak.
* sysdeps/unix/sysv/linux/pread64.c (__pread64): Likewise.
* sysdeps/unix/sysv/linux/pwrite.c (__pwrite): Likewise.
38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/* Copyright (C) 1997-2017 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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#ifndef __OFF_T_MATCHES_OFF64_T
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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, SYSCALL_LL_PRW (offset));
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}
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strong_alias (__libc_pread, __pread)
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libc_hidden_weak (__pread)
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weak_alias (__libc_pread, pread)
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#endif
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