1/* Copyright (C) 1993-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>.
17
18 As a special exception, if you link the code in this file with
19 files compiled with a GNU compiler to produce an executable,
20 that does not cause the resulting executable to be covered by
21 the GNU Lesser General Public License. This exception does not
22 however invalidate any other reasons why the executable file
23 might be covered by the GNU Lesser General Public License.
24 This exception applies to code released by its copyright holders
25 in files containing the exception. */
26
27
28/* This file provides definitions of _IO_stdin, _IO_stdout, and _IO_stderr
29 for C code. Compare stdstreams.cc.
30 (The difference is that here the vtable field is set to 0,
31 so the objects defined are not valid C++ objects. On the other
32 hand, we don't need a C++ compiler to build this file.) */
33
34#include "libioP.h"
35
36#ifdef _IO_MTSAFE_IO
37# define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \
38 static _IO_lock_t _IO_stdfile_##FD##_lock = _IO_lock_initializer; \
39 static struct _IO_wide_data _IO_wide_data_##FD \
40 = { ._wide_vtable = &_IO_wfile_jumps }; \
41 struct _IO_FILE_plus NAME \
42 = {FILEBUF_LITERAL(CHAIN, FLAGS, FD, &_IO_wide_data_##FD), \
43 &_IO_file_jumps};
44#else
45# define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \
46 static struct _IO_wide_data _IO_wide_data_##FD \
47 = { ._wide_vtable = &_IO_wfile_jumps }; \
48 struct _IO_FILE_plus NAME \
49 = {FILEBUF_LITERAL(CHAIN, FLAGS, FD, &_IO_wide_data_##FD), \
50 &_IO_file_jumps};
51#endif
52
53DEF_STDFILE(_IO_2_1_stdin_, 0, 0, _IO_NO_WRITES);
54DEF_STDFILE(_IO_2_1_stdout_, 1, &_IO_2_1_stdin_, _IO_NO_READS);
55DEF_STDFILE(_IO_2_1_stderr_, 2, &_IO_2_1_stdout_, _IO_NO_READS+_IO_UNBUFFERED);
56
57struct _IO_FILE_plus *_IO_list_all = &_IO_2_1_stderr_;
58libc_hidden_data_def (_IO_list_all)
59