Remove SPS profiler.

- Conditionals and code blocks. (MOZ_ENABLE_PROFILER_SPS)
- Stub out several profiler-only functions.

1 files changed, 0 insertions, 469 deletions

diff --git a/tools/profiler/core/platform-macos.cc b/tools/profiler/core/platform-macos.cc
deleted file mode 100644
index 9a98d1a26..000000000
--- a/tools/profiler/core/platform-macos.cc
+++ /dev/null
@@ -1,469 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include <dlfcn.h>
-#include <unistd.h>
-#include <sys/mman.h>
-#include <mach/mach_init.h>
-#include <mach-o/dyld.h>
-#include <mach-o/getsect.h>
-
-#include <AvailabilityMacros.h>
-
-#include <pthread.h>
-#include <semaphore.h>
-#include <signal.h>
-#include <libkern/OSAtomic.h>
-#include <mach/mach.h>
-#include <mach/semaphore.h>
-#include <mach/task.h>
-#include <mach/vm_statistics.h>
-#include <sys/time.h>
-#include <sys/resource.h>
-#include <sys/types.h>
-#include <sys/sysctl.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <math.h>
-
-#ifndef SPS_STANDALONE
-#include "ThreadResponsiveness.h"
-#include "nsThreadUtils.h"
-
-// Memory profile
-#include "nsMemoryReporterManager.h"
-#endif
-
-#include "platform.h"
-#include "GeckoSampler.h"
-#include "mozilla/TimeStamp.h"
-
-using mozilla::TimeStamp;
-using mozilla::TimeDuration;
-
-// this port is based off of v8 svn revision 9837
-
-// XXX: this is a very stubbed out implementation
-// that only supports a single Sampler
-struct SamplerRegistry {
-  static void AddActiveSampler(Sampler *sampler) {
-    ASSERT(!SamplerRegistry::sampler);
-    SamplerRegistry::sampler = sampler;
-  }
-  static void RemoveActiveSampler(Sampler *sampler) {
-    SamplerRegistry::sampler = NULL;
-  }
-  static Sampler *sampler;
-};
-
-Sampler *SamplerRegistry::sampler = NULL;
-
-#ifdef DEBUG
-// 0 is never a valid thread id on MacOSX since a pthread_t is a pointer.
-static const pthread_t kNoThread = (pthread_t) 0;
-#endif
-
-void OS::Startup() {
-}
-
-void OS::Sleep(int milliseconds) {
-  usleep(1000 * milliseconds);
-}
-
-void OS::SleepMicro(int microseconds) {
-  usleep(microseconds);
-}
-
-Thread::Thread(const char* name)
-    : stack_size_(0) {
-  set_name(name);
-}
-
-
-Thread::~Thread() {
-}
-
-
-static void SetThreadName(const char* name) {
-  // pthread_setname_np is only available in 10.6 or later, so test
-  // for it at runtime.
-  int (*dynamic_pthread_setname_np)(const char*);
-  *reinterpret_cast<void**>(&dynamic_pthread_setname_np) =
-    dlsym(RTLD_DEFAULT, "pthread_setname_np");
-  if (!dynamic_pthread_setname_np)
-    return;
-
-  // Mac OS X does not expose the length limit of the name, so hardcode it.
-  static const int kMaxNameLength = 63;
-  USE(kMaxNameLength);
-  ASSERT(Thread::kMaxThreadNameLength <= kMaxNameLength);
-  dynamic_pthread_setname_np(name);
-}
-
-
-static void* ThreadEntry(void* arg) {
-  Thread* thread = reinterpret_cast<Thread*>(arg);
-
-  thread->thread_ = pthread_self();
-  SetThreadName(thread->name());
-  ASSERT(thread->thread_ != kNoThread);
-  thread->Run();
-  return NULL;
-}
-
-
-void Thread::set_name(const char* name) {
-  strncpy(name_, name, sizeof(name_));
-  name_[sizeof(name_) - 1] = '\0';
-}
-
-
-void Thread::Start() {
-  pthread_attr_t* attr_ptr = NULL;
-  pthread_attr_t attr;
-  if (stack_size_ > 0) {
-    pthread_attr_init(&attr);
-    pthread_attr_setstacksize(&attr, static_cast<size_t>(stack_size_));
-    attr_ptr = &attr;
-  }
-  pthread_create(&thread_, attr_ptr, ThreadEntry, this);
-  ASSERT(thread_ != kNoThread);
-}
-
-void Thread::Join() {
-  pthread_join(thread_, NULL);
-}
-
-class PlatformData {
- public:
-  PlatformData() : profiled_thread_(mach_thread_self())
-  {
-    profiled_pthread_ = pthread_from_mach_thread_np(profiled_thread_);
-  }
-
-  ~PlatformData() {
-    // Deallocate Mach port for thread.
-    mach_port_deallocate(mach_task_self(), profiled_thread_);
-  }
-
-  thread_act_t profiled_thread() { return profiled_thread_; }
-  pthread_t profiled_pthread() { return profiled_pthread_; }
-
- private:
-  // Note: for profiled_thread_ Mach primitives are used instead of PThread's
-  // because the latter doesn't provide thread manipulation primitives required.
-  // For details, consult "Mac OS X Internals" book, Section 7.3.
-  thread_act_t profiled_thread_;
-  // we also store the pthread because Mach threads have no concept of stack
-  // and we want to be able to get the stack size when we need to unwind the
-  // stack using frame pointers.
-  pthread_t profiled_pthread_;
-};
-
-/* static */ PlatformData*
-Sampler::AllocPlatformData(int aThreadId)
-{
-  return new PlatformData;
-}
-
-/* static */ void
-Sampler::FreePlatformData(PlatformData* aData)
-{
-  delete aData;
-}
-
-class SamplerThread : public Thread {
- public:
-  explicit SamplerThread(double interval)
-      : Thread("SamplerThread")
-      , intervalMicro_(floor(interval * 1000 + 0.5))
-  {
-    if (intervalMicro_ <= 0) {
-      intervalMicro_ = 1;
-    }
-  }
-
-  static void AddActiveSampler(Sampler* sampler) {
-    SamplerRegistry::AddActiveSampler(sampler);
-    if (instance_ == NULL) {
-      instance_ = new SamplerThread(sampler->interval());
-      instance_->Start();
-    }
-  }
-
-  static void RemoveActiveSampler(Sampler* sampler) {
-    instance_->Join();
-    //XXX: unlike v8 we need to remove the active sampler after doing the Join
-    // because we drop the sampler immediately
-    SamplerRegistry::RemoveActiveSampler(sampler);
-    delete instance_;
-    instance_ = NULL;
-  }
-
-  // Implement Thread::Run().
-  virtual void Run() {
-    TimeDuration lastSleepOverhead = 0;
-    TimeStamp sampleStart = TimeStamp::Now();
-    while (SamplerRegistry::sampler->IsActive()) {
-      SamplerRegistry::sampler->DeleteExpiredMarkers();
-      if (!SamplerRegistry::sampler->IsPaused()) {
-        ::MutexAutoLock lock(*Sampler::sRegisteredThreadsMutex);
-        std::vector<ThreadInfo*> threads =
-          SamplerRegistry::sampler->GetRegisteredThreads();
-        bool isFirstProfiledThread = true;
-        for (uint32_t i = 0; i < threads.size(); i++) {
-          ThreadInfo* info = threads[i];
-
-          // This will be null if we're not interested in profiling this thread.
-          if (!info->Profile() || info->IsPendingDelete())
-            continue;
-
-          PseudoStack::SleepState sleeping = info->Stack()->observeSleeping();
-          if (sleeping == PseudoStack::SLEEPING_AGAIN) {
-            info->Profile()->DuplicateLastSample();
-            continue;
-          }
-
-#ifndef SPS_STANDALONE
-          info->Profile()->GetThreadResponsiveness()->Update();
-#endif
-
-          ThreadProfile* thread_profile = info->Profile();
-
-          SampleContext(SamplerRegistry::sampler, thread_profile,
-                        isFirstProfiledThread);
-          isFirstProfiledThread = false;
-        }
-      }
-
-      TimeStamp targetSleepEndTime = sampleStart + TimeDuration::FromMicroseconds(intervalMicro_);
-      TimeStamp beforeSleep = TimeStamp::Now();
-      TimeDuration targetSleepDuration = targetSleepEndTime - beforeSleep;
-      double sleepTime = std::max(0.0, (targetSleepDuration - lastSleepOverhead).ToMicroseconds());
-      OS::SleepMicro(sleepTime);
-      sampleStart = TimeStamp::Now();
-      lastSleepOverhead = sampleStart - (beforeSleep + TimeDuration::FromMicroseconds(sleepTime));
-    }
-  }
-
-  void SampleContext(Sampler* sampler, ThreadProfile* thread_profile,
-                     bool isFirstProfiledThread)
-  {
-    thread_act_t profiled_thread =
-      thread_profile->GetPlatformData()->profiled_thread();
-
-    TickSample sample_obj;
-    TickSample* sample = &sample_obj;
-
-    // Unique Set Size is not supported on Mac.
-    sample->ussMemory = 0;
-    sample->rssMemory = 0;
-
-#ifndef SPS_STANDALONE
-    if (isFirstProfiledThread && Sampler::GetActiveSampler()->ProfileMemory()) {
-      sample->rssMemory = nsMemoryReporterManager::ResidentFast();
-    }
-#endif
-
-    // We're using thread_suspend on OS X because pthread_kill (which is what
-    // we're using on Linux) has less consistent performance and causes
-    // strange crashes, see bug 1166778 and bug 1166808.
-
-    if (KERN_SUCCESS != thread_suspend(profiled_thread)) return;
-
-#if V8_HOST_ARCH_X64
-    thread_state_flavor_t flavor = x86_THREAD_STATE64;
-    x86_thread_state64_t state;
-    mach_msg_type_number_t count = x86_THREAD_STATE64_COUNT;
-#if __DARWIN_UNIX03
-#define REGISTER_FIELD(name) __r ## name
-#else
-#define REGISTER_FIELD(name) r ## name
-#endif  // __DARWIN_UNIX03
-#elif V8_HOST_ARCH_IA32
-    thread_state_flavor_t flavor = i386_THREAD_STATE;
-    i386_thread_state_t state;
-    mach_msg_type_number_t count = i386_THREAD_STATE_COUNT;
-#if __DARWIN_UNIX03
-#define REGISTER_FIELD(name) __e ## name
-#else
-#define REGISTER_FIELD(name) e ## name
-#endif  // __DARWIN_UNIX03
-#else
-#error Unsupported Mac OS X host architecture.
-#endif  // V8_HOST_ARCH
-
-    if (thread_get_state(profiled_thread,
-                         flavor,
-                         reinterpret_cast<natural_t*>(&state),
-                         &count) == KERN_SUCCESS) {
-      sample->pc = reinterpret_cast<Address>(state.REGISTER_FIELD(ip));
-      sample->sp = reinterpret_cast<Address>(state.REGISTER_FIELD(sp));
-      sample->fp = reinterpret_cast<Address>(state.REGISTER_FIELD(bp));
-      sample->timestamp = mozilla::TimeStamp::Now();
-      sample->threadProfile = thread_profile;
-
-      sampler->Tick(sample);
-    }
-    thread_resume(profiled_thread);
-  }
-
-  int intervalMicro_;
-  //RuntimeProfilerRateLimiter rate_limiter_;
-
-  static SamplerThread* instance_;
-
-  DISALLOW_COPY_AND_ASSIGN(SamplerThread);
-};
-
-#undef REGISTER_FIELD
-
-SamplerThread* SamplerThread::instance_ = NULL;
-
-Sampler::Sampler(double interval, bool profiling, int entrySize)
-    : // isolate_(isolate),
-      interval_(interval),
-      profiling_(profiling),
-      paused_(false),
-      active_(false),
-      entrySize_(entrySize) /*,
-      samples_taken_(0)*/ {
-}
-
-
-Sampler::~Sampler() {
-  ASSERT(!IsActive());
-}
-
-
-void Sampler::Start() {
-  ASSERT(!IsActive());
-  SetActive(true);
-  SamplerThread::AddActiveSampler(this);
-}
-
-
-void Sampler::Stop() {
-  ASSERT(IsActive());
-  SetActive(false);
-  SamplerThread::RemoveActiveSampler(this);
-}
-
-pthread_t
-Sampler::GetProfiledThread(PlatformData* aData)
-{
-  return aData->profiled_pthread();
-}
-
-#include <sys/syscall.h>
-pid_t gettid()
-{
-  return (pid_t) syscall(SYS_thread_selfid);
-}
-
-/* static */ Thread::tid_t
-Thread::GetCurrentId()
-{
-  return gettid();
-}
-
-bool Sampler::RegisterCurrentThread(const char* aName,
-                                    PseudoStack* aPseudoStack,
-                                    bool aIsMainThread, void* stackTop)
-{
-  if (!Sampler::sRegisteredThreadsMutex)
-    return false;
-
-
-  ::MutexAutoLock lock(*Sampler::sRegisteredThreadsMutex);
-
-  int id = gettid();
-  for (uint32_t i = 0; i < sRegisteredThreads->size(); i++) {
-    ThreadInfo* info = sRegisteredThreads->at(i);
-    if (info->ThreadId() == id && !info->IsPendingDelete()) {
-      // Thread already registered. This means the first unregister will be
-      // too early.
-      ASSERT(false);
-      return false;
-    }
-  }
-
-  set_tls_stack_top(stackTop);
-
-  ThreadInfo* info = new StackOwningThreadInfo(aName, id,
-    aIsMainThread, aPseudoStack, stackTop);
-
-  if (sActiveSampler) {
-    sActiveSampler->RegisterThread(info);
-  }
-
-  sRegisteredThreads->push_back(info);
-
-  return true;
-}
-
-void Sampler::UnregisterCurrentThread()
-{
-  if (!Sampler::sRegisteredThreadsMutex)
-    return;
-
-  tlsStackTop.set(nullptr);
-
-  ::MutexAutoLock lock(*Sampler::sRegisteredThreadsMutex);
-
-  int id = gettid();
-
-  for (uint32_t i = 0; i < sRegisteredThreads->size(); i++) {
-    ThreadInfo* info = sRegisteredThreads->at(i);
-    if (info->ThreadId() == id && !info->IsPendingDelete()) {
-      if (profiler_is_active()) {
-        // We still want to show the results of this thread if you
-        // save the profile shortly after a thread is terminated.
-        // For now we will defer the delete to profile stop.
-        info->SetPendingDelete();
-        break;
-      } else {
-        delete info;
-        sRegisteredThreads->erase(sRegisteredThreads->begin() + i);
-        break;
-      }
-    }
-  }
-}
-
-void TickSample::PopulateContext(void* aContext)
-{
-  // Note that this asm changes if PopulateContext's parameter list is altered
-#if defined(SPS_PLAT_amd64_darwin)
-  asm (
-      // Compute caller's %rsp by adding to %rbp:
-      // 8 bytes for previous %rbp, 8 bytes for return address
-      "leaq 0x10(%%rbp), %0\n\t"
-      // Dereference %rbp to get previous %rbp
-      "movq (%%rbp), %1\n\t"
-      :
-      "=r"(sp),
-      "=r"(fp)
-  );
-#elif defined(SPS_PLAT_x86_darwin)
-  asm (
-      // Compute caller's %esp by adding to %ebp:
-      // 4 bytes for aContext + 4 bytes for return address +
-      // 4 bytes for previous %ebp
-      "leal 0xc(%%ebp), %0\n\t"
-      // Dereference %ebp to get previous %ebp
-      "movl (%%ebp), %1\n\t"
-      :
-      "=r"(sp),
-      "=r"(fp)
-  );
-#else
-# error "Unsupported architecture"
-#endif
-  pc = reinterpret_cast<Address>(__builtin_extract_return_addr(
-                                    __builtin_return_address(0)));
-}
-