commit 0cfe1fb7060576d047f7f894fc0d8b87de84fcab
author Ian Rogers <irogers@google.com> Fri Aug 26 03:29:44 2011 -0700
committer Ian Rogers <irogers@google.com> Fri Sep 02 14:48:01 2011 -0700
tree 4255eae2034dcb0febe28411c50cba76189f39ae
parent a09576416788b916095739e43a16917e7948f3a4

Use accessor methods for Object fields.

Ensure that Object fields are modified via accessors so that it's easy
to insert barriers (make all fields within Objects private). Add validity
checks to Field and Method accessors to ensure they are accessed when a
Class is in a suitable state. Add validity checks to all Object
accessors to check heap isn't corrupted. Remove hacked in strings from Field
and Method; make type fields used the dex cache that is lazily initialized.
Clean up various other TODOs and lint issues.

Change-Id: Iac0afc515c01f5419874d9cdcdb9a7b45443e3fb

src/exception_test.cc

diff --git a/src/exception_test.cc b/src/exception_test.cc
index 3611b67..439e7ed 100644
--- a/src/exception_test.cc
+++ b/src/exception_test.cc
@@ -74,18 +74,18 @@
     ASSERT_TRUE(my_klass_ != NULL);
     method_f_ = my_klass_->FindVirtualMethod("f", "()I");
     ASSERT_TRUE(method_f_ != NULL);
-    method_f_->SetFrameSizeInBytes(8);
+    method_f_->SetFrameSizeInBytes(kStackAlignment);
     method_f_->SetReturnPcOffsetInBytes(4);
     method_g_ = my_klass_->FindVirtualMethod("g", "(I)V");
     ASSERT_TRUE(method_g_ != NULL);
-    method_g_->SetFrameSizeInBytes(8);
+    method_g_->SetFrameSizeInBytes(kStackAlignment);
     method_g_->SetReturnPcOffsetInBytes(4);
   }
 
   DexFile::CatchHandlerItem FindCatchHandlerItem(Method* method,
                                                  const char exception_type[],
                                                  uint32_t addr) {
-    const DexFile::CodeItem* code_item = dex_->GetCodeItem(method->code_off_);
+    const DexFile::CodeItem* code_item = dex_->GetCodeItem(method->GetCodeItemOffset());
     for (DexFile::CatchHandlerIterator iter = dex_->dexFindCatchHandler(*code_item, addr);
          !iter.HasNext(); iter.Next()) {
       if (strcmp(exception_type, dex_->dexStringByTypeIdx(iter.Get().type_idx_)) == 0) {
@@ -105,7 +105,7 @@
 };
 
 TEST_F(ExceptionTest, FindCatchHandler) {
-  const DexFile::CodeItem *code_item = dex_->GetCodeItem(method_f_->code_off_);
+  const DexFile::CodeItem *code_item = dex_->GetCodeItem(method_f_->GetCodeItemOffset());
 
   ASSERT_TRUE(code_item != NULL);
 
@@ -141,12 +141,23 @@
   enum {STACK_SIZE = 1000};
   uint32_t top_of_stack = 0;
   uintptr_t fake_stack[STACK_SIZE];
+  ASSERT_EQ(kStackAlignment, 16);
+  ASSERT_EQ(sizeof(uintptr_t), sizeof(uint32_t));
+
+  // Create/push fake 16byte stack frame for method g
   fake_stack[top_of_stack++] = reinterpret_cast<uintptr_t>(method_g_);
   fake_stack[top_of_stack++] = 3;
+  fake_stack[top_of_stack++] = 0;
+  fake_stack[top_of_stack++] = 0;
+
+  // Create/push fake 16byte stack frame for method f
   fake_stack[top_of_stack++] = reinterpret_cast<uintptr_t>(method_f_);
   fake_stack[top_of_stack++] = 3;
-  fake_stack[top_of_stack++] = NULL;
   fake_stack[top_of_stack++] = 0;
+  fake_stack[top_of_stack++] = 0;
+
+  // Pull Method* of NULL to terminate the trace
+  fake_stack[top_of_stack++] = NULL;
 
   Thread* thread = Thread::Current();
   thread->SetTopOfStack(fake_stack);