a022034da2
Avoids some unnecessary work during dlopen/dlclose/dlsym for most cases. Bug: 122471935 Test: fewer page faults during app startup Change-Id: Ie886e1e671066af3c6f3a895f9a8126f209d6660
69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#pragma once
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#include <stdlib.h>
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#include <limits.h>
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#include "private/bionic_systrace.h"
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#include <android-base/macros.h>
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#define LD_LOG(type, x...) \
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do { \
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if (g_linker_logger.IsEnabled(type)) g_linker_logger.Log(x); \
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} while (0)
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constexpr const uint32_t kLogErrors = 1 << 0;
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constexpr const uint32_t kLogDlopen = 1 << 1;
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constexpr const uint32_t kLogDlsym = 1 << 2;
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class LinkerLogger {
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public:
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LinkerLogger() : flags_(0) { }
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void ResetState();
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void Log(const char* format, ...);
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uint32_t IsEnabled(uint32_t type) {
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return flags_ & type;
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}
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private:
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uint32_t flags_;
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DISALLOW_COPY_AND_ASSIGN(LinkerLogger);
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};
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extern LinkerLogger g_linker_logger;
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extern char** g_argv;
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// If the system property debug.ld.greylist_disabled is true, we'll not use the greylist
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// regardless of API level.
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extern bool g_greylist_disabled;
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