9e27e58faa
Useful for testing whether apps have actually stopped using greylisted libraries even if they still have references to them in their apk to support old Android releases but also haven't bumped their targetSdkVersion yet. Since we already have two expensive __system_property_get calls and this would add a third, optimize two (but leave the third since it's not obviously amenable to optimization). None of this matters for user builds, but I don't want userdebug/eng to have distractingly different performance. (cherrypick of 7933bec2872aa1c3430149c7649726333c0ac9d8.) Bug: http://b/36106661 Test: ran "can you escape 5" with and without this property Change-Id: Id9a804695c1dca9b4be2ebd0e72f01817bb13cba
65 lines
2.2 KiB
C++
65 lines
2.2 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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#ifndef _LINKER_LOGGER_H_
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#define _LINKER_LOGGER_H_
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#include <stdlib.h>
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#include <limits.h>
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#include "private/bionic_macros.h"
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#include "private/bionic_systrace.h"
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#define LD_LOG(type, x...) \
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{ \
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g_linker_logger.Log(type, x); \
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}
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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(uint32_t type, const char* format, ...);
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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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#endif /* _LINKER_LOGGER_H_ */
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