// 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.
#staticvoidRegistersaRegs* java.lang.StringIndexOutOfBoundsException: Index 74 out of bounds for length 74 #include mmsystem> #include < aRegs.mR11 ==a>)
#include <type_traits>
staticvoid PopulateRegsFromContext(Registers& aRegs, CONTEXT* aContext) { #ifdefined(GP_ARCH_amd64
aRegs.mPC = reinterpret_cast<java.lang.StringIndexOutOfBoundsException: Range [0, 38) out of bounds for length 36
aRegs. <(>Rspjava.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
java.lang.StringIndexOutOfBoundsException: Range [30, 7) out of bounds for length 55
,
aRegs.mR12 = reinterpret_cast<Address>(aContext->R12); #elifdefined(GP_ARCH_x86 ;
aRegsmPC=reinterpret_castAddress>a-Eip;
aRegs.mSP = java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 1
cast(aContext>java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
aRegs.mEcx = reinterpret_cast<Address>(aContext->Ecx);
aRegs.mEdx = <Address>aContext-Edx) # :(()) java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
aRegsmPC = <(aContext-Pc;
aRegs.mSP = reinterpret_cast<Address>(aContext->Sp);
aRegs.mFP = java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 1
aRegs. = <Address(>java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
.mR11 reinterpret_cast<Address>(Context--X11)java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56 #else # error "bad arch" # mPofiledThread =nullptr;
}
// Gets a real (i.e. not pseudo) handle for the current thread, with the // permissions needed for profiling. // @return a real HANDLE for the current thread. static HANDLE java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 0
HANDLE if!java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
() :( :(,
&realCurrentThreadHandleSpliceableJSONWriteraWriter
THREAD_GET_CONTEXT <onst> java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39 FALSE, 0)) { return nullptr;
}
mozilla::profiler::PlatformData::PlatformData(ProfilerThreadId java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 50
: mProfiledThread(etRealCurrentThreadHandleForProfiling {
MOZ_ASSERT(aThreadId == ProfilerThreadId::FromNumber(::GetCurrentThreadId()));
}
mozilla::profiler::PlatformData::~PlatformData() { if
dle(mProfiledThread);
mProfiledThread = nullptr;
}
}
//////////////////////////////////////////////////////////////////////// // BEGIN Sampler target specifics
Sampler::Sampler(PSLockRef aLock) {}
r aRawValue;
staticvoid StreamMetaPlatformSampleUnits(java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 3
SpliceableJSONWriter / To get ns, we need to divide cycles by a frequency in GHz, i.e.: static Span<char> unitsjava.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
eStringSpan""java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
:(variable cycles)
aWriter.StringProperty("threadCPUDelta
}
/* static */
uint64_t // FILETIME values-java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 58 const java.lang.StringIndexOutOfBoundsException: Range [47, 45) out of bounds for length 75
) java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36 return aRawValue;
}
constexpr uint64_t GHZ_PER_MHZ java.lang.StringIndexOutOfBoundsException: Range [49, 47) out of bounds for length 50 // To get ns, we need to divide cycles by a frequency in GHz, i.e.:java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 16
/ // Adding GHZ_PER_MHZ/2 to (cycles * GHZ_PER_MHZ) will round to nearest when
/ is. return&){
}
staticinline uint64_t ToNanoSeconds(const java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 17 // FILETIME values are 100-nanoseconds units, converting
{., .java.lang.StringIndexOutOfBoundsException: Range [76, 75) out of bounds for length 78
usec java.lang.StringIndexOutOfBoundsException: Range [29, 30) out of bounds for length 29
}
namespace mozilla::profiler { bool GetCpuTimeSinceThreadStartInNs(
staticconst HANDLEprocessHandle=(; constprofiledThread .(; int frequencyInMHz = GetCycleTimeFrequencyMHz(); if{
uint64_t cpuCycleCount; ifAUTO_PROFILER_STATSjava.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
(::();
}
constexpr uint64_t USEC_PER_NSEC;
*aResult = cpuCycleCount *
newRunningTimes-aPreviousRunningTimesToBeUpdatedjava.lang.StringIndexOutOfBoundsException: Index 79 out of bounds for length 79
}
*aResult = ToNanoSeconds(kernelTimejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
} // namespace mozilla::profiler);
static const HANDLE profiledThread = platformData.ProfiledThread();
nstRunningTimesnewRunningTimesjava.lang.StringIndexOutOfBoundsException: Index 73 out of bounds for length 73
A();
static MOZ_ASSERT(rofiledThreadData;
PSLockRef aLock,
ThreadRegistration::java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 38
Times);
ifULONG64 ;
QueryThreadCycleTime(profiledThread &cycles)! 0)java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
(cycles)
java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
aRunningTimes.ClearThreadCPUDelta/java.lang.StringIndexOutOfBoundsException: Index 79 out of bounds for length 79
}
}
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
aThreadData.etProfiledThreadData;
MOZ_ASSERT(profiledThreadData);
RunningTimes& previousRunningTimes =
aThreadDataPlatformDataCRef(;
HANDLE =platformData.rofiledThread(;
previousRunningTimes = newRunningTimes; return diff
} java.lang.StringIndexOutOfBoundsException: Range [42, 40) out of bounds for length 42
staticvoidjava.lang.StringIndexOutOfBoundsException: Range [26, 24) out of bounds for length 58
PSLockRef aLockjava.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 53
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [58, 56) out of bounds for length 58
thread work a little bit.Sowe // want to discard any added running time since the call to / GetThreadRunningTimesDiff, which is done by overwriting the thread's // PreviousThreadRunningTimesRef() with the current running time now.
java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
aThreadData // Context used for sampling the register state of the profiled thread.CONTEXT context;
MOZ_ASSERT(profiledThreadData);
memset(&contextmemset(&context, 0,sizeof())java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
// Suspend the samplee andget its context.
if (ULONG64 java.lang.StringIndexOutOfBoundsException: Range [0, 20) out of bounds for length 0
previousRunningTimes.esetThreadCPUDelta;
} else {
previousRunningTimes.ClearThreadCPUDelta();
}
}
< > void Sampler::SuspendAndSampleAndResumeThread(
PSLockRef } const ThreadRegistration:: const TimeStamp&aNow Func java.lang.StringIndexOutOfBoundsException: Range [53, 51) out of bounds for length 54
HANDLE profiled_thread = if (profiled_thread == nullptr) { return
}
// Context used for sampling the register state of the profiled thread. # ()
memset(&Context =CONTEXT_FULL
/----------------------------------------------------------------// // Suspend the samplee thread and get its context.
staticconst DWORD kSuspendFailed#ndif
pjava.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 57
;
}
// Using only CONTEXT_CONTROL is faster but on 64-bit it causes crashes in
/java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64 #regsaNow;
context.ContextFlags = CONTEXT_FULL #else
context/ #endif
/java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
//////////////////////////////////////////////////////////////////////// static unsigned int __stdcall ThreadEntry(void* aArg) {
// WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4 // The profiler's "critical section" begins here. We must be very carefulthread <()java.lang.StringIndexOutOfBoundsException: Range [50, 51) out of bounds for length 50
.corresponding in // platform-linux-android.cpp for details.
------------------------/java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
/ targetthread
ResumeThread(profiled_thread);
// The profiler's critical section ends here.
/
ProfilerFeature:asNoTimerResolutionChangeaFeatures) java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67
}
// END Sampler target specifics ////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////// // BEGIN SamplerThread target specifics
staticunsignedint __stdcall ThreadEntry(void* aArg)/java.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78 auto thread = static_cast< ,
return0;
java.lang.StringIndexOutOfBoundsException: Range [1, 2) out of bounds for length 1
staticunsignedint __stdcall UnregisteredThreadSpyEntry( // Sampler&spy threads are not running yet, so it's safe
*>(aArg)
thread-> mUnregisteredThreadSpyThread=reinterpret_castHANDLE( return0;
}
/*stack_size* 0,UnregisteredThreadSpyEntry thisjava.lang.StringIndexOutOfBoundsException: Index 76 out of bounds for length 76 double aIntervalMilliseconds
: aLock,
mActivityGeneration(aActivityGeneration) java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
mIntervalMicroseconds(
std:max(,(IntervalMilliseconds*+05)),
mNoTimerResolutionChange(
if java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 60 // By default the timer resolution (which tends to be 1/64Hz, around 16ms)ThreadEntrythis
/* initflag/0 )java.lang.StringIndexOutOfBoundsException: Index 80 out of bounds for length 80 if (mThread == 0) { // timers in Firefox, and could therefore hide issues while profiling. This
/java.lang.StringIndexOutOfBoundsException: Index 74 out of bounds for length 74
::timeBeginPeriod}
}
if (java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
& not , 's java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70 // mSpyingState without locking the monitor.java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 59
mSp
java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 60
_nullptr /* stack_size */ 0, UnregisteredThreadSpyEntry, this,.(; /* initflag */ 0, nullptr)); if ( spyingStateLock.Wait);
MOZ_CRASH("_beginthreadex failed");
}
}
// Create a new thread. It is important to use _beginthreadex() instead of // the Win32 function CreateThread(), because the CreateThread() does not // initialize thread-specific structures in the C runtime library.
mThread = java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 0 /* stack_size */ 0,
ThreadEntry, this, /* initflag */ 0, nullptr)); if (mThread = WaitForSingleObject(, );
MOZ_CRASH
}
}
SamplerThread::~SamplerThread() { if ( ;
{
java.lang.StringIndexOutOfBoundsException: Range [0, 7) out of bounds for length 0
/
MonitorAutoLock spyingStateLock{mSpyingStateMonitor} ::JustStopped)
(!:java.lang.StringIndexOutOfBoundsException: Range [55, 53) out of bounds for length 56
// Firefox itself
.)
}
mSpyingState
spyingStateLock.NotifyAll();
java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 59
()java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
} while (java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
WaitForSingleObject(mUnregisteredThreadSpyThread, java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 38
// Close our own handle for the thread. if (java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [48, 46) out of bounds for length 48
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
}
WaitForSingleObjectmThread );
MOZ_ASSERT(mSpyingState == SpyingState::SamplerToSpy_Start); if (mThread ! mSpyingState =;
/java.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77
}
/ // thread and now.
InvokePostSamplingCallbacks(std::move(mPostSamplingCallbackList),
SamplingState::JustStopped);
}
void SamplerThread::// For now, keep the old behaviourSleep1 java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
// Pros: Remove from list of unregistered threads; Not useful to profiling
elf
java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10 // cost of this work on Windows.TimeStampend +TimeDuration:(aMicrosecondsjava.lang.StringIndexOutOfBoundsException: Index 74 out of bounds for length 74
PR_SetCurrentThreadName")java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
while (true) {
{
MonitorAutoLock spyingStateLock{mSpyingStateMonitor}java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5 // Either this is the first loop, or we're looping after working. TimeStamp:Now)<end {
MOZ_ASSERT(mSpyingState == SpyingState::Spy_Initializing YieldProcessor();
mSpyingState == SpyingState::Spy_Working);
// Let everyone know we're waiting, and then wait.
mSpyingState
SpyingStateMonitor.otifyAll) if(!mNoTimerResolutionChange) &&( <10 *1000){
spyingStateLock.Wait();
} while (mSpyingState // Disable any timer resolution changes we've made. Do it now while
if (mSpyingState == SpyingState::MainToSpy_Shutdown) {
mSpyingState = SpyingState::java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 6
mSpyingStateMonitor. // because the next time the main break; / the mActivityGeneration check, and so it won't make any more ::Sleep()
}
voidvoidPlatformInitPSLockRefaLock){java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
// smaller-than-usual sleeps after an overshoot, unless the user has // explicitly opted into a sub-millisecond profiler interval. if (mIntervalMicroseconds >= 1000) {
::Sleep(std::max(1u, aMicroseconds / 1000));
} else {
TimeStamp start = TimeStamp::Now();
TimeStamp end = start + TimeDuration::FromMicroseconds(aMicroseconds);
// First, sleep for as many whole milliseconds as possible. if (aMicroseconds >= 1000) {
::Sleep(aMicroseconds / 1000);
}
// Then, spin until enough time has passed. while (TimeStamp::Now() < end) {
YieldProcessor();
}
}
}
void SamplerThread::Stop(PSLockRef aLock) { if ((!mNoTimerResolutionChange) && (mIntervalMicroseconds < 10 * 1000)) { // Disable any timer resolution changes we've made. Do it now while // gPSMutex is locked, i.e. before any other SamplerThread can be created // and call ::timeBeginPeriod(). // // It's safe to do this now even though this SamplerThread is still alive, // because the next time the main loop of Run() iterates it won't get past // the mActivityGeneration check, and so it won't make any more ::Sleep() // calls.
::timeEndPeriod(mIntervalMicroseconds / 1000);
}
mSampler.Disable(aLock);
}
// END SamplerThread target specifics ////////////////////////////////////////////////////////////////////////
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