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-rw-r--r--runtime/catch_block_stack_visitor.cc70
1 files changed, 11 insertions, 59 deletions
diff --git a/runtime/catch_block_stack_visitor.cc b/runtime/catch_block_stack_visitor.cc
index 410fff9..8d10a97 100644
--- a/runtime/catch_block_stack_visitor.cc
+++ b/runtime/catch_block_stack_visitor.cc
@@ -17,27 +17,26 @@
#include "catch_block_stack_visitor.h"
#include "dex_instruction.h"
-#include "catch_finder.h"
+#include "mirror/art_method-inl.h"
+#include "quick_exception_handler.h"
#include "sirt_ref.h"
#include "verifier/method_verifier.h"
namespace art {
bool CatchBlockStackVisitor::VisitFrame() {
- catch_finder_->SetHandlerFrameId(GetFrameId());
+ exception_handler_->SetHandlerFrameId(GetFrameId());
mirror::ArtMethod* method = GetMethod();
if (method == nullptr) {
// This is the upcall, we remember the frame and last pc so that we may long jump to them.
- catch_finder_->SetHandlerQuickFramePc(GetCurrentQuickFramePc());
- catch_finder_->SetHandlerQuickFrame(GetCurrentQuickFrame());
+ exception_handler_->SetHandlerQuickFramePc(GetCurrentQuickFramePc());
+ exception_handler_->SetHandlerQuickFrame(GetCurrentQuickFrame());
return false; // End stack walk.
} else {
if (method->IsRuntimeMethod()) {
// Ignore callee save method.
DCHECK(method->IsCalleeSaveMethod());
return true;
- } else if (is_deoptimization_) {
- return HandleDeoptimization(method);
} else {
return HandleTryItems(method);
}
@@ -46,68 +45,21 @@ bool CatchBlockStackVisitor::VisitFrame() {
bool CatchBlockStackVisitor::HandleTryItems(mirror::ArtMethod* method) {
uint32_t dex_pc = DexFile::kDexNoIndex;
- if (method->IsNative()) {
- ++native_method_count_;
- } else {
+ if (!method->IsNative()) {
dex_pc = GetDexPc();
}
if (dex_pc != DexFile::kDexNoIndex) {
bool clear_exception = false;
- SirtRef<mirror::Class> sirt_method_to_find(Thread::Current(), to_find_);
- uint32_t found_dex_pc = method->FindCatchBlock(sirt_method_to_find, dex_pc, &clear_exception);
- to_find_ = sirt_method_to_find.get();
- catch_finder_->SetClearException(clear_exception);
+ uint32_t found_dex_pc = method->FindCatchBlock(to_find_, dex_pc, &clear_exception);
+ exception_handler_->SetClearException(clear_exception);
if (found_dex_pc != DexFile::kDexNoIndex) {
- catch_finder_->SetHandlerDexPc(found_dex_pc);
- catch_finder_->SetHandlerQuickFramePc(method->ToNativePc(found_dex_pc));
- catch_finder_->SetHandlerQuickFrame(GetCurrentQuickFrame());
+ exception_handler_->SetHandlerDexPc(found_dex_pc);
+ exception_handler_->SetHandlerQuickFramePc(method->ToNativePc(found_dex_pc));
+ exception_handler_->SetHandlerQuickFrame(GetCurrentQuickFrame());
return false; // End stack walk.
}
}
return true; // Continue stack walk.
}
-bool CatchBlockStackVisitor::HandleDeoptimization(mirror::ArtMethod* m) {
- MethodHelper mh(m);
- const DexFile::CodeItem* code_item = mh.GetCodeItem();
- CHECK(code_item != nullptr);
- uint16_t num_regs = code_item->registers_size_;
- uint32_t dex_pc = GetDexPc();
- const Instruction* inst = Instruction::At(code_item->insns_ + dex_pc);
- uint32_t new_dex_pc = dex_pc + inst->SizeInCodeUnits();
- ShadowFrame* new_frame = ShadowFrame::Create(num_regs, nullptr, m, new_dex_pc);
- SirtRef<mirror::DexCache> dex_cache(self_, mh.GetDexCache());
- SirtRef<mirror::ClassLoader> class_loader(self_, mh.GetClassLoader());
- verifier::MethodVerifier verifier(&mh.GetDexFile(), &dex_cache, &class_loader,
- &mh.GetClassDef(), code_item, m->GetDexMethodIndex(), m,
- m->GetAccessFlags(), false, true);
- verifier.Verify();
- std::vector<int32_t> kinds = verifier.DescribeVRegs(dex_pc);
- for (uint16_t reg = 0; reg < num_regs; ++reg) {
- VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2));
- switch (kind) {
- case kUndefined:
- new_frame->SetVReg(reg, 0xEBADDE09);
- break;
- case kConstant:
- new_frame->SetVReg(reg, kinds.at((reg * 2) + 1));
- break;
- case kReferenceVReg:
- new_frame->SetVRegReference(reg,
- reinterpret_cast<mirror::Object*>(GetVReg(m, reg, kind)));
- break;
- default:
- new_frame->SetVReg(reg, GetVReg(m, reg, kind));
- break;
- }
- }
- if (prev_shadow_frame_ != nullptr) {
- prev_shadow_frame_->SetLink(new_frame);
- } else {
- catch_finder_->SetTopShadowFrame(new_frame);
- }
- prev_shadow_frame_ = new_frame;
- return true;
-}
-
} // namespace art