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19b516360a
Almost-straight copy of a subset of files from tools/profiler to mozglue/baseprofiler. Some minor changes first: - Reduced moz.build to only mention actually-copied files. - Headers in 'public' prefixed with "Base" (to distinguish them from their originals, in case they later get #included from the same units). - Also copied profiling categories from js/src/vm/GeckoProfiler.cpp to ProfilingCategory.cpp, and copied js/src/vm/ProfilingStack.cpp, and their respective headers -- as they are needed for a significant part of the profiler API, and are not strictly js-specific. baseprofiler not yet added to parent mozglue/moz.build, so it won't be built yet. Differential Revision: https://phabricator.services.mozilla.com/D31923 --HG-- rename : tools/profiler/core/EHABIStackWalk.cpp => mozglue/baseprofiler/core/EHABIStackWalk.cpp rename : tools/profiler/core/EHABIStackWalk.h => mozglue/baseprofiler/core/EHABIStackWalk.h rename : tools/profiler/core/PageInformation.cpp => mozglue/baseprofiler/core/PageInformation.cpp rename : tools/profiler/core/PageInformation.h => mozglue/baseprofiler/core/PageInformation.h rename : tools/profiler/core/PlatformMacros.h => mozglue/baseprofiler/core/PlatformMacros.h rename : tools/profiler/core/ProfileBuffer.cpp => mozglue/baseprofiler/core/ProfileBuffer.cpp rename : tools/profiler/core/ProfileBuffer.h => mozglue/baseprofiler/core/ProfileBuffer.h rename : tools/profiler/core/ProfileBufferEntry.cpp => mozglue/baseprofiler/core/ProfileBufferEntry.cpp rename : tools/profiler/core/ProfileBufferEntry.h => mozglue/baseprofiler/core/ProfileBufferEntry.h rename : tools/profiler/core/ProfileJSONWriter.cpp => mozglue/baseprofiler/core/ProfileJSONWriter.cpp rename : tools/profiler/core/ProfiledThreadData.cpp => mozglue/baseprofiler/core/ProfiledThreadData.cpp rename : tools/profiler/core/ProfiledThreadData.h => mozglue/baseprofiler/core/ProfiledThreadData.h rename : tools/profiler/core/ProfilerBacktrace.cpp => mozglue/baseprofiler/core/ProfilerBacktrace.cpp rename : tools/profiler/core/ProfilerBacktrace.h => mozglue/baseprofiler/core/ProfilerBacktrace.h rename : tools/profiler/core/ProfilerMarker.h => mozglue/baseprofiler/core/ProfilerMarker.h rename : tools/profiler/core/ProfilerMarkerPayload.cpp => mozglue/baseprofiler/core/ProfilerMarkerPayload.cpp rename : js/src/vm/GeckoProfiler.cpp => mozglue/baseprofiler/core/ProfilingCategory.cpp rename : js/src/vm/ProfilingStack.cpp => mozglue/baseprofiler/core/ProfilingStack.cpp rename : tools/profiler/core/RegisteredThread.cpp => mozglue/baseprofiler/core/RegisteredThread.cpp rename : tools/profiler/core/RegisteredThread.h => mozglue/baseprofiler/core/RegisteredThread.h rename : tools/profiler/core/ThreadInfo.h => mozglue/baseprofiler/core/ThreadInfo.h rename : tools/profiler/core/VTuneProfiler.cpp => mozglue/baseprofiler/core/VTuneProfiler.cpp rename : tools/profiler/core/VTuneProfiler.h => mozglue/baseprofiler/core/VTuneProfiler.h rename : tools/profiler/core/platform-linux-android.cpp => mozglue/baseprofiler/core/platform-linux-android.cpp rename : tools/profiler/core/platform-macos.cpp => mozglue/baseprofiler/core/platform-macos.cpp rename : tools/profiler/core/platform-win32.cpp => mozglue/baseprofiler/core/platform-win32.cpp rename : tools/profiler/core/platform.cpp => mozglue/baseprofiler/core/platform.cpp rename : tools/profiler/core/platform.h => mozglue/baseprofiler/core/platform.h rename : tools/profiler/core/shared-libraries-linux.cc => mozglue/baseprofiler/core/shared-libraries-linux.cc rename : tools/profiler/core/shared-libraries-macos.cc => mozglue/baseprofiler/core/shared-libraries-macos.cc rename : tools/profiler/core/shared-libraries-win32.cc => mozglue/baseprofiler/core/shared-libraries-win32.cc rename : tools/profiler/core/vtune/ittnotify.h => mozglue/baseprofiler/core/vtune/ittnotify.h rename : tools/profiler/lul/AutoObjectMapper.cpp => mozglue/baseprofiler/lul/AutoObjectMapper.cpp rename : tools/profiler/lul/AutoObjectMapper.h => mozglue/baseprofiler/lul/AutoObjectMapper.h rename : tools/profiler/lul/LulCommon.cpp => mozglue/baseprofiler/lul/LulCommon.cpp rename : tools/profiler/lul/LulCommonExt.h => mozglue/baseprofiler/lul/LulCommonExt.h rename : tools/profiler/lul/LulDwarf.cpp => mozglue/baseprofiler/lul/LulDwarf.cpp rename : tools/profiler/lul/LulDwarfExt.h => mozglue/baseprofiler/lul/LulDwarfExt.h rename : tools/profiler/lul/LulDwarfInt.h => mozglue/baseprofiler/lul/LulDwarfInt.h rename : tools/profiler/lul/LulDwarfSummariser.cpp => mozglue/baseprofiler/lul/LulDwarfSummariser.cpp rename : tools/profiler/lul/LulDwarfSummariser.h => mozglue/baseprofiler/lul/LulDwarfSummariser.h rename : tools/profiler/lul/LulElf.cpp => mozglue/baseprofiler/lul/LulElf.cpp rename : tools/profiler/lul/LulElfExt.h => mozglue/baseprofiler/lul/LulElfExt.h rename : tools/profiler/lul/LulElfInt.h => mozglue/baseprofiler/lul/LulElfInt.h rename : tools/profiler/lul/LulMain.cpp => mozglue/baseprofiler/lul/LulMain.cpp rename : tools/profiler/lul/LulMain.h => mozglue/baseprofiler/lul/LulMain.h rename : tools/profiler/lul/LulMainInt.h => mozglue/baseprofiler/lul/LulMainInt.h rename : tools/profiler/lul/platform-linux-lul.cpp => mozglue/baseprofiler/lul/platform-linux-lul.cpp rename : tools/profiler/lul/platform-linux-lul.h => mozglue/baseprofiler/lul/platform-linux-lul.h rename : tools/profiler/moz.build => mozglue/baseprofiler/moz.build rename : tools/profiler/public/ProfileJSONWriter.h => mozglue/baseprofiler/public/BaseProfileJSONWriter.h rename : tools/profiler/public/GeckoProfiler.h => mozglue/baseprofiler/public/BaseProfiler.h rename : tools/profiler/public/ProfilerCounts.h => mozglue/baseprofiler/public/BaseProfilerCounts.h rename : tools/profiler/public/ProfilerMarkerPayload.h => mozglue/baseprofiler/public/BaseProfilerMarkerPayload.h rename : tools/profiler/public/shared-libraries.h => mozglue/baseprofiler/public/BaseProfilerSharedLibraries.h rename : js/public/ProfilingCategory.h => mozglue/baseprofiler/public/BaseProfilingCategory.h rename : js/public/ProfilingStack.h => mozglue/baseprofiler/public/BaseProfilingStack.h extra : moz-landing-system : lando
115 lines
4.2 KiB
C++
115 lines
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef AutoObjectMapper_h
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#define AutoObjectMapper_h
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#include <string>
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#include "mozilla/Attributes.h"
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#include "PlatformMacros.h"
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// A (nearly-) RAII class that maps an object in and then unmaps it on
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// destruction. This base class version uses the "normal" POSIX
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// functions: open, fstat, close, mmap, munmap.
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class MOZ_STACK_CLASS AutoObjectMapperPOSIX {
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public:
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// The constructor does not attempt to map the file, because that
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// might fail. Instead, once the object has been constructed,
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// call Map() to attempt the mapping. There is no corresponding
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// Unmap() since the unmapping is done in the destructor. Failure
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// messages are sent to |aLog|.
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explicit AutoObjectMapperPOSIX(void (*aLog)(const char*));
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// Unmap the file on destruction of this object.
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~AutoObjectMapperPOSIX();
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// Map |fileName| into the address space and return the mapping
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// extents. If the file is zero sized this will fail. The file is
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// mapped read-only and private. Returns true iff the mapping
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// succeeded, in which case *start and *length hold its extent.
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// Once a call to Map succeeds, all subsequent calls to it will
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// fail.
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bool Map(/*OUT*/ void** start, /*OUT*/ size_t* length, std::string fileName);
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protected:
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// If we are currently holding a mapped object, these record the
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// mapped address range.
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void* mImage;
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size_t mSize;
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// A logging sink, for complaining about mapping failures.
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void (*mLog)(const char*);
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private:
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// Are we currently holding a mapped object? This is private to
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// the base class. Derived classes need to have their own way to
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// track whether they are holding a mapped object.
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bool mIsMapped;
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// Disable copying and assignment.
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AutoObjectMapperPOSIX(const AutoObjectMapperPOSIX&);
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AutoObjectMapperPOSIX& operator=(const AutoObjectMapperPOSIX&);
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// Disable heap allocation of this class.
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void* operator new(size_t);
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void* operator new[](size_t);
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void operator delete(void*);
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void operator delete[](void*);
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};
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#if defined(GP_OS_android)
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// This is a variant of AutoObjectMapperPOSIX suitable for use in
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// conjunction with faulty.lib on Android. How it behaves depends on
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// the name of the file to be mapped. There are three possible cases:
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//
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// (1) /foo/bar/xyzzy/blah.apk!/libwurble.so
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// We hand it as-is to faulty.lib and let it fish the relevant
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// bits out of the APK.
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//
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// (2) libmozglue.so
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// This is part of the Fennec installation, but is not in the
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// APK. Instead we have to figure out the installation path
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// and look for it there. Because of faulty.lib limitations,
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// we have to use regular open/mmap instead of faulty.lib.
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//
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// (3) libanythingelse.so
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// faulty.lib assumes this is a system library, and prepends
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// "/system/lib/" to the path. So as in (1), we can give it
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// as-is to faulty.lib.
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//
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// Hence (1) and (3) require special-casing here. Case (2) simply
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// hands the problem to the parent class.
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class MOZ_STACK_CLASS AutoObjectMapperFaultyLib : public AutoObjectMapperPOSIX {
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public:
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explicit AutoObjectMapperFaultyLib(void (*aLog)(const char*));
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~AutoObjectMapperFaultyLib();
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bool Map(/*OUT*/ void** start, /*OUT*/ size_t* length, std::string fileName);
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private:
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// faulty.lib requires us to maintain an abstract handle that can be
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// used later to unmap the area. If this is non-NULL, it is assumed
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// that unmapping is to be done by faulty.lib. Otherwise it goes
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// via the normal mechanism.
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void* mHdl;
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// Disable copying and assignment.
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AutoObjectMapperFaultyLib(const AutoObjectMapperFaultyLib&);
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AutoObjectMapperFaultyLib& operator=(const AutoObjectMapperFaultyLib&);
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// Disable heap allocation of this class.
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void* operator new(size_t);
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void* operator new[](size_t);
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void operator delete(void*);
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void operator delete[](void*);
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};
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#endif // defined(GP_OS_android)
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#endif // AutoObjectMapper_h
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