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eb1fae6a45
The getpass function (XPG3 / XPG4 / UNIX98) calls fflush_unlocked (not in any of those standards). This patch fixes this by making fflush_unlocked into a weak alias for __fflush_unlocked and calling __fflush_unlocked from getpass. Tested for x86_64 and x86 (testsuite, and that disassembly of installed stripped shared libraries is unchanged by the patch). [BZ #18540] * libio/iofflush.c [!_IO_MTSAFE_IO] (__fflush_unlocked): Define as strong alias of _IO_fflush. Use libc_hidden_def. * libio/iofflush_u.c (fflush_unlocked): Rename to __fflush_unlocked and define as weak alias of __fflush_unlocked. Use libc_hidden_weak. * include/stdio.h (__fflush_unlocked): Declare. Use libc_hidden_proto. * misc/getpass.c (getpass): Call __fflush_unlocked instead of fflush_unlocked. * conform/Makefile (test-xfail-UNIX98/unistd.h/linknamespace): Remove variable.
59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/* Copyright (C) 1993-2015 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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As a special exception, if you link the code in this file with
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files compiled with a GNU compiler to produce an executable,
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that does not cause the resulting executable to be covered by
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the GNU Lesser General Public License. This exception does not
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however invalidate any other reasons why the executable file
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might be covered by the GNU Lesser General Public License.
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This exception applies to code released by its copyright holders
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in files containing the exception. */
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#include "libioP.h"
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#include <stdio.h>
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int
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_IO_fflush (fp)
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_IO_FILE *fp;
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{
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if (fp == NULL)
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return _IO_flush_all ();
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else
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{
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int result;
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CHECK_FILE (fp, EOF);
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_IO_acquire_lock (fp);
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result = _IO_SYNC (fp) ? EOF : 0;
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_IO_release_lock (fp);
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return result;
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}
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}
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libc_hidden_def (_IO_fflush)
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#ifdef weak_alias
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weak_alias (_IO_fflush, fflush)
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libc_hidden_weak (fflush)
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#ifndef _IO_MTSAFE_IO
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strong_alias (_IO_fflush, __fflush_unlocked)
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libc_hidden_def (__fflush_unlocked)
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weak_alias (_IO_fflush, fflush_unlocked)
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libc_hidden_weak (fflush_unlocked)
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#endif
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#endif
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