diff options
Diffstat (limited to 'runtime/interpreter/interpreter_common.cc')
-rw-r--r-- | runtime/interpreter/interpreter_common.cc | 54 |
1 files changed, 38 insertions, 16 deletions
diff --git a/runtime/interpreter/interpreter_common.cc b/runtime/interpreter/interpreter_common.cc index ae461fd987..0028b21f94 100644 --- a/runtime/interpreter/interpreter_common.cc +++ b/runtime/interpreter/interpreter_common.cc @@ -416,35 +416,57 @@ EXPLICIT_DO_IPUT_QUICK_ALL_TEMPLATE_DECL(Primitive::kPrimNot) // iput-objec #undef EXPLICIT_DO_IPUT_QUICK_ALL_TEMPLATE_DECL #undef EXPLICIT_DO_IPUT_QUICK_TEMPLATE_DECL +// We execute any instrumentation events that are triggered by this exception and change the +// shadow_frame's dex_pc to that of the exception handler if there is one in the current method. +// Return true if we should continue executing in the current method and false if we need to go up +// the stack to find an exception handler. // We accept a null Instrumentation* meaning we must not report anything to the instrumentation. -uint32_t FindNextInstructionFollowingException( - Thread* self, ShadowFrame& shadow_frame, uint32_t dex_pc, - const instrumentation::Instrumentation* instrumentation) { +// TODO We should have a better way to skip instrumentation reporting or possibly rethink that +// behavior. +bool MoveToExceptionHandler(Thread* self, + ShadowFrame& shadow_frame, + const instrumentation::Instrumentation* instrumentation) { self->VerifyStack(); StackHandleScope<2> hs(self); Handle<mirror::Throwable> exception(hs.NewHandle(self->GetException())); - if (instrumentation != nullptr && instrumentation->HasExceptionThrownListeners() - && self->IsExceptionThrownByCurrentMethod(exception.Get())) { + if (instrumentation != nullptr && + instrumentation->HasExceptionThrownListeners() && + self->IsExceptionThrownByCurrentMethod(exception.Get())) { + // See b/65049545 for why we don't need to check to see if the exception has changed. instrumentation->ExceptionThrownEvent(self, exception.Get()); } bool clear_exception = false; uint32_t found_dex_pc = shadow_frame.GetMethod()->FindCatchBlock( - hs.NewHandle(exception->GetClass()), dex_pc, &clear_exception); - if (found_dex_pc == DexFile::kDexNoIndex && instrumentation != nullptr) { - if (shadow_frame.NeedsNotifyPop()) { - instrumentation->WatchedFramePopped(self, shadow_frame); + hs.NewHandle(exception->GetClass()), shadow_frame.GetDexPC(), &clear_exception); + if (found_dex_pc == DexFile::kDexNoIndex) { + if (instrumentation != nullptr) { + if (shadow_frame.NeedsNotifyPop()) { + instrumentation->WatchedFramePopped(self, shadow_frame); + } + // Exception is not caught by the current method. We will unwind to the + // caller. Notify any instrumentation listener. + instrumentation->MethodUnwindEvent(self, + shadow_frame.GetThisObject(), + shadow_frame.GetMethod(), + shadow_frame.GetDexPC()); } - // Exception is not caught by the current method. We will unwind to the - // caller. Notify any instrumentation listener. - instrumentation->MethodUnwindEvent(self, shadow_frame.GetThisObject(), - shadow_frame.GetMethod(), dex_pc); + return false; } else { - // Exception is caught in the current method. We will jump to the found_dex_pc. - if (clear_exception) { + shadow_frame.SetDexPC(found_dex_pc); + if (instrumentation != nullptr && instrumentation->HasExceptionHandledListeners()) { + self->ClearException(); + instrumentation->ExceptionHandledEvent(self, exception.Get()); + if (UNLIKELY(self->IsExceptionPending())) { + // Exception handled event threw an exception. Try to find the handler for this one. + return MoveToExceptionHandler(self, shadow_frame, instrumentation); + } else if (!clear_exception) { + self->SetException(exception.Get()); + } + } else if (clear_exception) { self->ClearException(); } + return true; } - return found_dex_pc; } void UnexpectedOpcode(const Instruction* inst, const ShadowFrame& shadow_frame) { |