mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-15 15:40:12 +00:00
41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
100 lines
3.4 KiB
C
100 lines
3.4 KiB
C
/* Copyright (C) 1993,94,96,97,99,2000 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
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.
|
|
|
|
As a special exception, if you link the code in this file with
|
|
files compiled with a GNU compiler to produce an executable,
|
|
that does not cause the resulting executable to be covered by
|
|
the GNU Lesser General Public License. This exception does not
|
|
however invalidate any other reasons why the executable file
|
|
might be covered by the GNU Lesser General Public License.
|
|
This exception applies to code released by its copyright holders
|
|
in files containing the exception. */
|
|
|
|
#include <shlib-compat.h>
|
|
#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
|
|
|
|
/* This file provides definitions of _IO_stdin, _IO_stdout, and _IO_stderr
|
|
for C code. Compare stdstreams.cc.
|
|
(The difference is that here the vtable field is set to 0,
|
|
so the objects defined are not valid C++ objects. On the other
|
|
hand, we don't need a C++ compiler to build this file.) */
|
|
|
|
#define _IO_USE_OLD_IO_FILE
|
|
#include "libioP.h"
|
|
|
|
#ifdef _IO_MTSAFE_IO
|
|
#define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \
|
|
static _IO_lock_t _IO_stdfile_##FD##_lock = _IO_lock_initializer; \
|
|
struct _IO_FILE_plus NAME \
|
|
= {FILEBUF_LITERAL(CHAIN, FLAGS, FD, NULL), &_IO_old_file_jumps};
|
|
#else
|
|
#define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \
|
|
static struct _IO_wide_data _IO_wide_data_##FD; \
|
|
struct _IO_FILE_plus NAME \
|
|
= {FILEBUF_LITERAL(CHAIN, FLAGS, FD, NULL), &_IO_old_file_jumps};
|
|
#endif
|
|
|
|
DEF_STDFILE(_IO_stdin_, 0, 0, _IO_NO_WRITES);
|
|
DEF_STDFILE(_IO_stdout_, 1, &_IO_stdin_, _IO_NO_READS);
|
|
DEF_STDFILE(_IO_stderr_, 2, &_IO_stdout_, _IO_NO_READS+_IO_UNBUFFERED);
|
|
|
|
#if defined __GNUC__ && __GNUC__ >= 2
|
|
|
|
#include <stdio.h>
|
|
|
|
extern const int _IO_stdin_used;
|
|
weak_extern (_IO_stdin_used);
|
|
|
|
#undef stdin
|
|
#undef stdout
|
|
#undef stderr
|
|
|
|
extern FILE *stdin;
|
|
extern FILE *stdout;
|
|
extern FILE *stderr;
|
|
|
|
extern struct _IO_FILE_plus *_IO_list_all;
|
|
|
|
static void _IO_check_libio __P ((void)) __attribute__ ((constructor));
|
|
|
|
/* This function determines which shared C library the application
|
|
was linked against. We then set up the stdin/stdout/stderr and
|
|
_IO_list_all accordingly. */
|
|
|
|
static void
|
|
_IO_check_libio ()
|
|
{
|
|
if (&_IO_stdin_used == NULL)
|
|
{
|
|
/* We are using the old one. */
|
|
_IO_stdin = stdin = (_IO_FILE *) &_IO_stdin_;
|
|
_IO_stdout = stdout = (_IO_FILE *) &_IO_stdout_;
|
|
_IO_stderr = stderr = (_IO_FILE *) &_IO_stderr_;
|
|
_IO_list_all = &_IO_stderr_;
|
|
_IO_stdin->_vtable_offset = _IO_stdout->_vtable_offset =
|
|
_IO_stderr->_vtable_offset = stdin->_vtable_offset =
|
|
stdout->_vtable_offset = stderr->_vtable_offset =
|
|
((int) sizeof (struct _IO_FILE)
|
|
- (int) sizeof (struct _IO_FILE_complete));
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif
|