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Diffstat (limited to 'tools/profiler/core/platform.h')
| -rw-r--r-- | tools/profiler/core/platform.h | 428 |
1 files changed, 0 insertions, 428 deletions
diff --git a/tools/profiler/core/platform.h b/tools/profiler/core/platform.h deleted file mode 100644 index 17c8dd25c..000000000 --- a/tools/profiler/core/platform.h +++ /dev/null @@ -1,428 +0,0 @@ -// Copyright (c) 2006-2011 The Chromium Authors. 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. -// * Neither the name of Google, Inc. nor the names of its contributors -// may be used to endorse or promote products derived from this -// software without specific prior written permission. -// -// 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. - -#ifndef TOOLS_PLATFORM_H_ -#define TOOLS_PLATFORM_H_ - -#ifdef SPS_STANDALONE -#define MOZ_COUNT_CTOR(name) -#define MOZ_COUNT_DTOR(name) -#endif - -#ifdef ANDROID -#include <android/log.h> -#else -#define __android_log_print(a, ...) -#endif - -#ifdef XP_UNIX -#include <pthread.h> -#endif - -#include <stdint.h> -#include <math.h> -#ifndef SPS_STANDALONE -#include "MainThreadUtils.h" -#include "mozilla/Mutex.h" -#include "ThreadResponsiveness.h" -#endif -#include "mozilla/TimeStamp.h" -#include "mozilla/UniquePtr.h" -#include "mozilla/Unused.h" -#include "PlatformMacros.h" -#include "v8-support.h" -#include <vector> -#include "StackTop.h" - -// We need a definition of gettid(), but Linux libc implementations don't -// provide a wrapper for it (except for Bionic) -#if defined(__linux__) -#include <unistd.h> -#if !defined(__BIONIC__) -#include <sys/syscall.h> -static inline pid_t gettid() -{ - return (pid_t) syscall(SYS_gettid); -} -#endif -#endif - -#ifdef XP_WIN -#include <windows.h> -#endif - -#define ASSERT(a) MOZ_ASSERT(a) - -bool moz_profiler_verbose(); - -#ifdef ANDROID -# if defined(__arm__) || defined(__thumb__) -# define ENABLE_SPS_LEAF_DATA -# define ENABLE_ARM_LR_SAVING -# endif -# define LOG(text) \ - do { if (moz_profiler_verbose()) \ - __android_log_write(ANDROID_LOG_ERROR, "Profiler", text); \ - } while (0) -# define LOGF(format, ...) \ - do { if (moz_profiler_verbose()) \ - __android_log_print(ANDROID_LOG_ERROR, "Profiler", format, \ - __VA_ARGS__); \ - } while (0) - -#else -# define LOG(text) \ - do { if (moz_profiler_verbose()) fprintf(stderr, "Profiler: %s\n", text); \ - } while (0) -# define LOGF(format, ...) \ - do { if (moz_profiler_verbose()) fprintf(stderr, "Profiler: " format \ - "\n", __VA_ARGS__); \ - } while (0) - -#endif - -#if defined(XP_MACOSX) || defined(XP_WIN) || defined(XP_LINUX) -#define ENABLE_SPS_LEAF_DATA -#endif - -typedef int32_t Atomic32; - -extern mozilla::TimeStamp sStartTime; - -typedef uint8_t* Address; - -// ---------------------------------------------------------------------------- -// Mutex -// -// Mutexes are used for serializing access to non-reentrant sections of code. -// The implementations of mutex should allow for nested/recursive locking. - -class Mutex { - public: - virtual ~Mutex() {} - - // Locks the given mutex. If the mutex is currently unlocked, it becomes - // locked and owned by the calling thread, and immediately. If the mutex - // is already locked by another thread, suspends the calling thread until - // the mutex is unlocked. - virtual int Lock() = 0; - - // Unlocks the given mutex. The mutex is assumed to be locked and owned by - // the calling thread on entrance. - virtual int Unlock() = 0; -}; - -class MutexAutoLock { - public: - explicit MutexAutoLock(::Mutex& aMutex) - : mMutex(&aMutex) - { - mMutex->Lock(); - } - - ~MutexAutoLock() { - mMutex->Unlock(); - } - - private: - Mutex* mMutex; -}; - -// ---------------------------------------------------------------------------- -// OS -// -// This class has static methods for the different platform specific -// functions. Add methods here to cope with differences between the -// supported platforms. - -class OS { - public: - - // Sleep for a number of milliseconds. - static void Sleep(const int milliseconds); - - // Sleep for a number of microseconds. - static void SleepMicro(const int microseconds); - - // Called on startup to initialize platform specific things - static void Startup(); - - static mozilla::UniquePtr< ::Mutex> CreateMutex(const char* aDesc); - - private: - static const int msPerSecond = 1000; - -}; - - - - -// ---------------------------------------------------------------------------- -// Thread -// -// Thread objects are used for creating and running threads. When the start() -// method is called the new thread starts running the run() method in the new -// thread. The Thread object should not be deallocated before the thread has -// terminated. - -class Thread { - public: - // Create new thread. - explicit Thread(const char* name); - virtual ~Thread(); - - // Start new thread by calling the Run() method in the new thread. - void Start(); - - void Join(); - - inline const char* name() const { - return name_; - } - - // Abstract method for run handler. - virtual void Run() = 0; - - // The thread name length is limited to 16 based on Linux's implementation of - // prctl(). - static const int kMaxThreadNameLength = 16; - -#ifdef XP_WIN - HANDLE thread_; - typedef DWORD tid_t; - tid_t thread_id_; -#else - typedef ::pid_t tid_t; -#endif -#if defined(XP_MACOSX) - pthread_t thread_; -#endif - - static tid_t GetCurrentId(); - - private: - void set_name(const char *name); - - char name_[kMaxThreadNameLength]; - int stack_size_; - - DISALLOW_COPY_AND_ASSIGN(Thread); -}; - -// ---------------------------------------------------------------------------- -// HAVE_NATIVE_UNWIND -// -// Pseudo backtraces are available on all platforms. Native -// backtraces are available only on selected platforms. Breakpad is -// the only supported native unwinder. HAVE_NATIVE_UNWIND is set at -// build time to indicate whether native unwinding is possible on this -// platform. - -#undef HAVE_NATIVE_UNWIND -#if defined(MOZ_PROFILING) \ - && (defined(SPS_PLAT_amd64_linux) || defined(SPS_PLAT_arm_android) \ - || (defined(MOZ_WIDGET_ANDROID) && defined(__arm__)) \ - || defined(SPS_PLAT_x86_linux) \ - || defined(SPS_OS_windows) \ - || defined(SPS_OS_darwin)) -# define HAVE_NATIVE_UNWIND -#endif - -/* Some values extracted at startup from environment variables, that - control the behaviour of the breakpad unwinder. */ -extern const char* PROFILER_INTERVAL; -extern const char* PROFILER_ENTRIES; -extern const char* PROFILER_STACK; -extern const char* PROFILER_FEATURES; - -void read_profiler_env_vars(); -void profiler_usage(); - -// Helper methods to expose modifying profiler behavior -bool set_profiler_interval(const char*); -bool set_profiler_entries(const char*); -bool set_profiler_scan(const char*); -bool is_native_unwinding_avail(); - -void set_tls_stack_top(void* stackTop); - -// ---------------------------------------------------------------------------- -// Sampler -// -// A sampler periodically samples the state of the VM and optionally -// (if used for profiling) the program counter and stack pointer for -// the thread that created it. - -struct PseudoStack; -class ThreadProfile; - -// TickSample captures the information collected for each sample. -class TickSample { - public: - TickSample() - : pc(NULL) - , sp(NULL) - , fp(NULL) -#ifdef ENABLE_ARM_LR_SAVING - , lr(NULL) -#endif - , context(NULL) - , isSamplingCurrentThread(false) - , threadProfile(nullptr) - , rssMemory(0) - , ussMemory(0) - {} - - void PopulateContext(void* aContext); - - Address pc; // Instruction pointer. - Address sp; // Stack pointer. - Address fp; // Frame pointer. -#ifdef ENABLE_ARM_LR_SAVING - Address lr; // ARM link register -#endif - void* context; // The context from the signal handler, if available. On - // Win32 this may contain the windows thread context. - bool isSamplingCurrentThread; - ThreadProfile* threadProfile; - mozilla::TimeStamp timestamp; - int64_t rssMemory; - int64_t ussMemory; -}; - -class ThreadInfo; -class PlatformData; -class GeckoSampler; -class SyncProfile; -class Sampler { - public: - // Initialize sampler. - explicit Sampler(double interval, bool profiling, int entrySize); - virtual ~Sampler(); - - double interval() const { return interval_; } - - // This method is called for each sampling period with the current - // program counter. - virtual void Tick(TickSample* sample) = 0; - - // Immediately captures the calling thread's call stack and returns it. - virtual SyncProfile* GetBacktrace() = 0; - - // Request a save from a signal handler - virtual void RequestSave() = 0; - // Process any outstanding request outside a signal handler. - virtual void HandleSaveRequest() = 0; - // Delete markers which are no longer part of the profile due to buffer wraparound. - virtual void DeleteExpiredMarkers() = 0; - - // Start and stop sampler. - void Start(); - void Stop(); - - // Is the sampler used for profiling? - bool IsProfiling() const { return profiling_; } - - // Whether the sampler is running (that is, consumes resources). - bool IsActive() const { return active_; } - - // Low overhead way to stop the sampler from ticking - bool IsPaused() const { return paused_; } - void SetPaused(bool value) { NoBarrier_Store(&paused_, value); } - - virtual bool ProfileThreads() const = 0; - - int EntrySize() { return entrySize_; } - - // We can't new/delete the type safely without defining it - // (-Wdelete-incomplete). Use these Alloc/Free functions instead. - static PlatformData* AllocPlatformData(int aThreadId); - static void FreePlatformData(PlatformData*); - - // If we move the backtracing code into the platform files we won't - // need to have these hacks -#ifdef XP_WIN - // xxxehsan sucky hack :( - static uintptr_t GetThreadHandle(PlatformData*); -#endif -#ifdef XP_MACOSX - static pthread_t GetProfiledThread(PlatformData*); -#endif - - static std::vector<ThreadInfo*> GetRegisteredThreads() { - return *sRegisteredThreads; - } - - static bool RegisterCurrentThread(const char* aName, - PseudoStack* aPseudoStack, - bool aIsMainThread, void* stackTop); - static void UnregisterCurrentThread(); - - static void Startup(); - // Should only be called on shutdown - static void Shutdown(); - - static GeckoSampler* GetActiveSampler() { return sActiveSampler; } - static void SetActiveSampler(GeckoSampler* sampler) { sActiveSampler = sampler; } - - static mozilla::UniquePtr<Mutex> sRegisteredThreadsMutex; - - static bool CanNotifyObservers() { -#if defined(SPS_OS_android) - // Android ANR reporter uses the profiler off the main thread - return NS_IsMainThread(); -#else - MOZ_ASSERT(NS_IsMainThread()); - return true; -#endif - } - - protected: - static std::vector<ThreadInfo*>* sRegisteredThreads; - static GeckoSampler* sActiveSampler; - - private: - void SetActive(bool value) { NoBarrier_Store(&active_, value); } - - const double interval_; - const bool profiling_; - Atomic32 paused_; - Atomic32 active_; - const int entrySize_; - - // Refactor me! -#if defined(SPS_OS_linux) || defined(SPS_OS_android) - bool signal_handler_installed_; - struct sigaction old_sigprof_signal_handler_; - struct sigaction old_sigsave_signal_handler_; - bool signal_sender_launched_; - pthread_t signal_sender_thread_; -#endif -}; - -#endif /* ndef TOOLS_PLATFORM_H_ */ |