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0bb2fabcb3
This patch consolidates all the non cancellable openat{64} calls to use
the __openat{64}_nocancel identifier. For non cancellable targets it will
be just a macro to call the default respective symbol while on Linux
will be a internal one.
Checked on x86_64-linux-gnu, x86_64-linux-gnu-x32, and i686-linux-gnu.
* sysdeps/generic/not-cancel.h (openat_not_cancel): Remove macro.
(openat_not_cancel_3): Likewise.
(openat64_not_cancel_3): Likewise).
(openat_not_cancel_3): Likewise).
* sysdeps/unix/sysv/linux/not-cancel.h (openat_not_cancel): Remove
macro.
(openat_not_cancel_3): Likewise.
(openat64_not_cancel): Likewise.
(openat64_not_cancel_3): Likewise.
* sysdeps/unix/sysv/linux/openat.c (__openat_nocancel): New function.
* sysdeps/unix/sysv/linux/openat64.c (__openat64_nocancel): Likewise.
* io/ftw.c (open_dir_stream): Replace openat{64}_not_cancel{_3} with
__open{64}_nocancel.
* sysdeps/mach/hurd/opendir.c (__opendirat): Likewise.
* sysdeps/posix/getcwd.c (__getcwd): Likewise.
* sysdeps/posix/opendir.c (__opendirat): Likewise.
80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
/* Copyright (C) 2007-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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 <fcntl.h>
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#include <stdarg.h>
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#include <sysdep-cancel.h>
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#include <not-cancel.h>
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#ifdef __OFF_T_MATCHES_OFF64_T
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# define EXTRA_OPEN_FLAGS 0
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#else
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# define EXTRA_OPEN_FLAGS O_LARGEFILE
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#endif
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/* Open FILE with access OFLAG. Interpret relative paths relative to
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the directory associated with FD. If OFLAG includes O_CREAT or
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O_TMPFILE, a fourth argument is the file protection. */
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int
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__libc_openat64 (int fd, const char *file, int oflag, ...)
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{
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mode_t mode = 0;
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if (__OPEN_NEEDS_MODE (oflag))
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{
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va_list arg;
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va_start (arg, oflag);
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mode = va_arg (arg, mode_t);
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va_end (arg);
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}
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return SYSCALL_CANCEL (openat, fd, file, oflag | EXTRA_OPEN_FLAGS, mode);
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}
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strong_alias (__libc_openat64, __openat64)
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libc_hidden_weak (__openat64)
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weak_alias (__libc_openat64, openat64)
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#if !IS_IN (rtld)
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int
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__openat64_nocancel (int fd, const char *file, int oflag, ...)
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{
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mode_t mode = 0;
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if (__OPEN_NEEDS_MODE (oflag))
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{
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va_list arg;
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va_start (arg, oflag);
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mode = va_arg (arg, mode_t);
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va_end (arg);
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}
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return INLINE_SYSCALL_CALL (openat, fd, file, oflag | EXTRA_OPEN_FLAGS,
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mode);
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}
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#else
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strong_alias (__libc_openat64, __openat64_nocancel)
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#endif
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libc_hidden_def (__openat64_nocancel)
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#ifdef __OFF_T_MATCHES_OFF64_T
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strong_alias (__libc_openat64, __openat)
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libc_hidden_weak (__openat)
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weak_alias (__libc_openat64, openat)
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strong_alias (__openat64_nocancel, __openat_nocancel)
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#endif
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