861c0ef37b
Create a method of disabling the debug allocation code paths so that it's possible to use the libunwindbacktrace library without any modifications. Use this path to create and destroy the maps for the process. It's not stricly necessary in the init code since the symbols are not modified until after the initialize calls. Also, remove the debug_XXX source files that doesn't need to be in libc.so. Fix the maps reading code since it was completely broken for 64 bit. Bug: 16408686 Change-Id: I6b02ef6ce26fdb7a59ad1029e7cbba9accceb704
64 lines
2.3 KiB
C++
64 lines
2.3 KiB
C++
/*
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* Copyright (C) 2014 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 MALLOC_DEBUG_DISABLE_H
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#define MALLOC_DEBUG_DISABLE_H
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#include <pthread.h>
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#include "private/bionic_macros.h"
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// =============================================================================
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// Used to disable the debug allocation calls.
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// =============================================================================
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extern pthread_key_t g_debug_calls_disabled;
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static inline bool DebugCallsDisabled() {
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return pthread_getspecific(g_debug_calls_disabled) != NULL;
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}
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class ScopedDisableDebugCalls {
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public:
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ScopedDisableDebugCalls() : disabled_(DebugCallsDisabled()) {
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if (!disabled_) {
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pthread_setspecific(g_debug_calls_disabled, reinterpret_cast<const void*>(1));
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}
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}
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~ScopedDisableDebugCalls() {
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if (!disabled_) {
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pthread_setspecific(g_debug_calls_disabled, NULL);
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}
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}
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private:
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bool disabled_;
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DISALLOW_COPY_AND_ASSIGN(ScopedDisableDebugCalls);
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};
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#endif // MALLOC_DEBUG_DISABLE_H
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