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authorMark Salyzyn2016-03-10 10:25:33 -0600
committerMark Salyzyn2016-03-10 16:44:27 -0600
commit6d753faaf8694792433eb78c5c3572efd74a3d54 (patch)
treee492ecad9e80855575f7050fab0e250bf8963b7f /liblog/log_cdefs.h
parent029c7373801b9e1791df334efa36588c216b4ab2 (diff)
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liblog: audit declare LIBLOG_ABI_PUBLIC
(cherry pick from commit be1d3c21b57d3e67c6a9682f3b2f0838486a3ee8) - replace <sys/cdefs.h> with local "log_cdefs.h" which fortifies and expands definitions, adding LIBLOG_ABI_PUBLIC, LIBLOG_HIDDEN, LIBLOG_ABI_PRIVATE and LIBLOG_WEAK. - clearly tag each interface as LIBLOG_ABI_PUBLIC, LIBLOG_HIDDEN, LIBLOG_ABI_PRIVATE, LIBLOG_WEAK or static depending on scope - Add -fvisibility=hidden to ensure nothing else leaks - some code standard adjustments Bug: 27566046 Change-Id: Ic14033c4e6d833d973beb035ddc1c6134fb35a3f
Diffstat (limited to 'liblog/log_cdefs.h')
-rw-r--r--liblog/log_cdefs.h54
1 files changed, 54 insertions, 0 deletions
diff --git a/liblog/log_cdefs.h b/liblog/log_cdefs.h
new file mode 100644
index 000000000..3a526256e
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+++ b/liblog/log_cdefs.h
@@ -0,0 +1,54 @@
1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef _LIBLOG_CDEFS_H__
18#define _LIBLOG_CDEFS_H__
19
20#include <sys/cdefs.h>
21
22/* Declare this library function hidden and internal */
23#if defined(_WIN32)
24#define LIBLOG_HIDDEN
25#else
26#define LIBLOG_HIDDEN __attribute__((visibility("hidden")))
27#endif
28
29/* Declare this library function visible and external */
30#if defined(_WIN32)
31#define LIBLOG_ABI_PUBLIC
32#else
33#define LIBLOG_ABI_PUBLIC __attribute__((visibility("default")))
34#endif
35
36/* Declare this library function visible but private */
37#define LIBLOG_ABI_PRIVATE LIBLOG_ABI_PUBLIC
38
39/*
40 * Declare this library function as reimplementation.
41 * Prevent circular dependencies, but allow _real_ library to hijack
42 */
43#if defined(_WIN32)
44#define LIBLOG_WEAK static /* Accept that it is totally private */
45#else
46#define LIBLOG_WEAK __attribute__((weak,visibility("default")))
47#endif
48
49/* Unused argument. For C code only, remove symbol name for C++ */
50#ifndef __unused
51#define __unused __attribute__((__unused__))
52#endif
53
54#endif /* _LIBLOG_CDEFS_H__ */