9076b0c4e7
Explicitly say "warning" for warnings, explicitly say what action we're going to take (such as "(ignoring)"), always provide a link to our documentation when there is one, explicitly say what API level the behavior changes at, and explicitly say why we're allowing the misbehavior for now. Bug: http://b/71852862 Test: ran tests, looked at logcat Change-Id: I1795a5af45deb904332b866d7d666690dae4340b
89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
/*
|
|
* Copyright (C) 2016 The Android Open Source Project
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <link.h>
|
|
#include <stddef.h>
|
|
|
|
#include <string>
|
|
#include <unordered_map>
|
|
|
|
#include <async_safe/log.h>
|
|
|
|
#define DL_ERR(fmt, x...) \
|
|
do { \
|
|
async_safe_format_buffer(linker_get_error_buffer(), linker_get_error_buffer_size(), fmt, ##x); \
|
|
} while (false)
|
|
|
|
#define DL_WARN(fmt, x...) \
|
|
do { \
|
|
async_safe_format_log(ANDROID_LOG_WARN, "linker", fmt, ##x); \
|
|
async_safe_format_fd(2, "WARNING: linker: "); \
|
|
async_safe_format_fd(2, fmt, ##x); \
|
|
async_safe_format_fd(2, "\n"); \
|
|
} while (false)
|
|
|
|
void DL_WARN_documented_change(int api_level, const char* doc_link, const char* fmt, ...);
|
|
|
|
#define DL_ERR_AND_LOG(fmt, x...) \
|
|
do { \
|
|
DL_ERR(fmt, x); \
|
|
PRINT(fmt, x); \
|
|
} while (false)
|
|
|
|
constexpr ElfW(Versym) kVersymNotNeeded = 0;
|
|
constexpr ElfW(Versym) kVersymGlobal = 1;
|
|
|
|
// These values are used to call constructors for .init_array && .preinit_array
|
|
extern int g_argc;
|
|
extern char** g_argv;
|
|
extern char** g_envp;
|
|
|
|
struct soinfo;
|
|
struct android_namespace_t;
|
|
|
|
extern android_namespace_t g_default_namespace;
|
|
|
|
extern std::unordered_map<uintptr_t, soinfo*> g_soinfo_handles_map;
|
|
|
|
// Error buffer "variable"
|
|
char* linker_get_error_buffer();
|
|
size_t linker_get_error_buffer_size();
|
|
|
|
class DlErrorRestorer {
|
|
public:
|
|
DlErrorRestorer() {
|
|
saved_error_msg_ = linker_get_error_buffer();
|
|
}
|
|
~DlErrorRestorer() {
|
|
strlcpy(linker_get_error_buffer(), saved_error_msg_.c_str(), linker_get_error_buffer_size());
|
|
}
|
|
private:
|
|
std::string saved_error_msg_;
|
|
};
|