void EventHook::onFunctionExit(const ActRec* ar, const TypedValue* retval,
const Fault* fault, ssize_t flags) {
// Xenon
if (flags & XenonSignalFlag) {
Xenon::getInstance().log(Xenon::ExitSample);
}
// Run IntervalTimer callbacks only if it's safe to do so, i.e., not when
// there's a pending exception or we're unwinding from a C++ exception.
if (flags & IntervalTimerFlag
&& ThreadInfo::s_threadInfo->m_pendingException == nullptr
&& (!fault || fault->m_faultType == Fault::Type::UserException)) {
IntervalTimer::RunCallbacks(IntervalTimer::ExitSample);
}
// Inlined calls normally skip the function enter and exit events. If we
// side exit in an inlined callee, we short-circuit here in order to skip
// exit events that could unbalance the call stack.
if (RuntimeOption::EvalJit &&
((jit::TCA) ar->m_savedRip == jit::mcg->tx().uniqueStubs.retInlHelper)) {
return;
}
// User profiler
if (flags & EventHookFlag) {
auto profiler = ThreadInfo::s_threadInfo->m_profiler;
if (profiler != nullptr &&
!(profiler->shouldSkipBuiltins() && ar->func()->isBuiltin())) {
// NB: we don't have a function type flag to match what we got in
// onFunctionEnter. That's okay, though... we tolerate this in
// TraceProfiler.
end_profiler_frame(profiler,
retval,
GetFunctionNameForProfiler(ar->func(), NormalFunc));
}
if (shouldRunUserProfiler(ar->func())) {
if (ThreadInfo::s_threadInfo->m_pendingException != nullptr) {
// Avoid running PHP code when exception from destructor is pending.
// TODO(#2329497) will not happen once CheckSurprise is used
} else if (!fault) {
runUserProfilerOnFunctionExit(ar, retval, nullptr);
} else if (fault->m_faultType == Fault::Type::UserException) {
runUserProfilerOnFunctionExit(ar, retval, fault->m_userException);
} else {
// Avoid running PHP code when unwinding C++ exception.
}
}
}
// Debugger hook
if (flags & DebuggerHookFlag) {
DEBUGGER_ATTACHED_ONLY(phpDebuggerFuncExitHook(ar));
}
}
void EventHook::onFunctionExit(const ActRec* ar, TypedValue* retval) {
auto const inlinedRip = JIT::tx->uniqueStubs.retInlHelper;
if ((JIT::TCA)ar->m_savedRip == inlinedRip) {
// Inlined calls normally skip the function enter and exit events. If we
// side exit in an inlined callee, we want to make sure to skip the exit
// event to avoid unbalancing the call stack.
return;
}
Xenon::getInstance().log(false);
#ifdef HOTPROFILER
Profiler* profiler = ThreadInfo::s_threadInfo->m_profiler;
if (profiler != nullptr) {
// NB: we don't have a function type flag to match what we got in
// onFunctionEnter. That's okay, though... we tolerate this in
// TraceProfiler.
end_profiler_frame(profiler,
GetFunctionNameForProfiler(ar->func(), NormalFunc));
}
#endif
// If we have a pending exception, then we're in the process of unwinding
// for that exception. We avoid running more PHP code (the user profiler) and
// also avoid raising more exceptions for surprises (including the pending
// exception).
if (ThreadInfo::s_threadInfo->m_pendingException == nullptr) {
if (shouldRunUserProfiler(ar->func())) {
runUserProfilerOnFunctionExit(ar, retval);
}
// XXX Disabled until t2329497 is fixed:
// CheckSurprise();
}
}
void EventHook::onFunctionExit(const ActRec* ar, const TypedValue* retval,
const Fault* fault, ssize_t flags) {
// Xenon
if (flags & RequestInjectionData::XenonSignalFlag) {
Xenon::getInstance().log(Xenon::ExitSample);
}
// Inlined calls normally skip the function enter and exit events. If we
// side exit in an inlined callee, we short-circuit here in order to skip
// exit events that could unbalance the call stack.
if ((JIT::TCA) ar->m_savedRip == JIT::mcg->tx().uniqueStubs.retInlHelper) {
return;
}
// User profiler
if (flags & RequestInjectionData::EventHookFlag) {
Profiler* profiler = ThreadInfo::s_threadInfo->m_profiler;
if (profiler != nullptr) {
// NB: we don't have a function type flag to match what we got in
// onFunctionEnter. That's okay, though... we tolerate this in
// TraceProfiler.
end_profiler_frame(profiler,
retval,
GetFunctionNameForProfiler(ar->func(), NormalFunc));
}
if (shouldRunUserProfiler(ar->func())) {
if (ThreadInfo::s_threadInfo->m_pendingException != nullptr) {
// Avoid running PHP code when exception from destructor is pending.
// TODO(#2329497) will not happen once CheckSurprise is used
} else if (!fault) {
runUserProfilerOnFunctionExit(ar, retval, nullptr);
} else if (fault->m_faultType == Fault::Type::UserException) {
runUserProfilerOnFunctionExit(ar, retval, fault->m_userException);
} else {
// Avoid running PHP code when unwinding C++ exception.
}
}
}
// Debugger hook
if (flags & RequestInjectionData::DebuggerHookFlag) {
DEBUGGER_ATTACHED_ONLY(phpDebuggerFuncExitHook(ar));
}
}
void EventHook::onFunctionExit(const ActRec* ar, const TypedValue* retval,
const Fault* fault, ssize_t flags) {
// Xenon
if (flags & RequestInjectionData::XenonSignalFlag) {
Xenon::getInstance().log(false);
}
// User profiler
//
// Inlined calls normally skip the function enter and exit events. If we
// side exit in an inlined callee, we want to make sure to skip the exit
// event to avoid unbalancing the call stack.
if ((flags & RequestInjectionData::EventHookFlag) &&
(JIT::TCA)ar->m_savedRip != JIT::tx->uniqueStubs.retInlHelper) {
#ifdef HOTPROFILER
Profiler* profiler = ThreadInfo::s_threadInfo->m_profiler;
if (profiler != nullptr) {
// NB: we don't have a function type flag to match what we got in
// onFunctionEnter. That's okay, though... we tolerate this in
// TraceProfiler.
end_profiler_frame(profiler,
GetFunctionNameForProfiler(ar->func(), NormalFunc));
}
#endif
if (shouldRunUserProfiler(ar->func())) {
if (ThreadInfo::s_threadInfo->m_pendingException != nullptr) {
// Avoid running PHP code when exception from destructor is pending.
// TODO(#2329497) will not happen once CheckSurprise is used
} else if (!fault) {
runUserProfilerOnFunctionExit(ar, retval, nullptr);
} else if (fault->m_faultType == Fault::Type::UserException) {
runUserProfilerOnFunctionExit(ar, retval, fault->m_userException);
} else {
// Avoid running PHP code when unwinding C++ exception.
}
}
}
}
