aosp12/bionic/linker/linker_logger.h

66 lines
2.2 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 <stdlib.h>
#include <limits.h>
#include "private/bionic_systrace.h"
#include <android-base/macros.h>
#define LD_LOG(type, x...) \
do { \
if (g_linker_logger.IsEnabled(type)) g_linker_logger.Log(x); \
} while (0)
constexpr const uint32_t kLogErrors = 1 << 0;
constexpr const uint32_t kLogDlopen = 1 << 1;
constexpr const uint32_t kLogDlsym = 1 << 2;
class LinkerLogger {
public:
LinkerLogger() : flags_(0) { }
void ResetState();
void Log(const char* format, ...) __printflike(2, 3);
uint32_t IsEnabled(uint32_t type) {
return flags_ & type;
}
private:
uint32_t flags_;
DISALLOW_COPY_AND_ASSIGN(LinkerLogger);
};
extern LinkerLogger g_linker_logger;
extern char** g_argv;