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authorMathieu Chartier <mathieuc@google.com>2015-01-08 09:41:25 -0800
committerMathieu Chartier <mathieuc@google.com>2015-01-08 10:45:04 -0800
commit3e0acf673ce1fbb3932d288d7b52a6dc551a920f (patch)
tree04713128c17bcdc4495c5d2a28ad6301be3b302c /runtime/handle_scope.h
parent553727e466942a10e11ee39dcb67e3f9562b471e (diff)
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Add VerifyObject to StackHandleScope::SetReference
Helps catch GC bugs. Also moved some of the HandleScope logic to the inl file. Bug: 13054004 Change-Id: I81b9dd717092b6a467fcd28b4df0089ec075dd44
Diffstat (limited to 'runtime/handle_scope.h')
-rw-r--r--runtime/handle_scope.h62
1 files changed, 11 insertions, 51 deletions
diff --git a/runtime/handle_scope.h b/runtime/handle_scope.h
index 2c4f0f915d..782bbeaabc 100644
--- a/runtime/handle_scope.h
+++ b/runtime/handle_scope.h
@@ -22,6 +22,7 @@
#include "handle.h"
#include "stack.h"
#include "utils.h"
+#include "verify_object.h"
namespace art {
namespace mirror {
@@ -47,19 +48,10 @@ class PACKED(4) HandleScope {
// takes the pointer size explicitly so that at compile time we can cross-compile correctly.
// Returns the size of a HandleScope containing num_references handles.
- static size_t SizeOf(uint32_t num_references) {
- size_t header_size = sizeof(HandleScope);
- size_t data_size = sizeof(StackReference<mirror::Object>) * num_references;
- return header_size + data_size;
- }
+ static size_t SizeOf(uint32_t num_references);
// Returns the size of a HandleScope containing num_references handles.
- static size_t SizeOf(size_t pointer_size, uint32_t num_references) {
- // Assume that the layout is packed.
- size_t header_size = pointer_size + sizeof(number_of_references_);
- size_t data_size = sizeof(StackReference<mirror::Object>) * num_references;
- return header_size + data_size;
- }
+ static size_t SizeOf(size_t pointer_size, uint32_t num_references);
// Link to previous HandleScope or null.
HandleScope* GetLink() const {
@@ -67,37 +59,18 @@ class PACKED(4) HandleScope {
}
ALWAYS_INLINE mirror::Object* GetReference(size_t i) const
- SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
- DCHECK_LT(i, number_of_references_);
- return GetReferences()[i].AsMirrorPtr();
- }
+ SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
ALWAYS_INLINE Handle<mirror::Object> GetHandle(size_t i)
- SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
- DCHECK_LT(i, number_of_references_);
- return Handle<mirror::Object>(&GetReferences()[i]);
- }
+ SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
ALWAYS_INLINE MutableHandle<mirror::Object> GetMutableHandle(size_t i)
- SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
- DCHECK_LT(i, number_of_references_);
- return MutableHandle<mirror::Object>(&GetReferences()[i]);
- }
+ SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
ALWAYS_INLINE void SetReference(size_t i, mirror::Object* object)
- SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
- DCHECK_LT(i, number_of_references_);
- GetReferences()[i].Assign(object);
- }
+ SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
- bool Contains(StackReference<mirror::Object>* handle_scope_entry) const {
- // A HandleScope should always contain something. One created by the
- // jni_compiler should have a jobject/jclass as a native method is
- // passed in a this pointer or a class
- DCHECK_GT(number_of_references_, 0U);
- return &GetReferences()[0] <= handle_scope_entry &&
- handle_scope_entry <= &GetReferences()[number_of_references_ - 1];
- }
+ ALWAYS_INLINE bool Contains(StackReference<mirror::Object>* handle_scope_entry) const;
// Offset of link within HandleScope, used by generated code.
static size_t LinkOffset(size_t pointer_size ATTRIBUTE_UNUSED) {
@@ -174,27 +147,14 @@ class PACKED(4) StackHandleScope FINAL : public HandleScope {
ALWAYS_INLINE ~StackHandleScope();
template<class T>
- ALWAYS_INLINE MutableHandle<T> NewHandle(T* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
- SetReference(pos_, object);
- MutableHandle<T> h(GetHandle<T>(pos_));
- pos_++;
- return h;
- }
+ ALWAYS_INLINE MutableHandle<T> NewHandle(T* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
template<class T>
ALWAYS_INLINE HandleWrapper<T> NewHandleWrapper(T** object)
- SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
- SetReference(pos_, *object);
- MutableHandle<T> h(GetHandle<T>(pos_));
- pos_++;
- return HandleWrapper<T>(object, h);
- }
+ SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
ALWAYS_INLINE void SetReference(size_t i, mirror::Object* object)
- SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
- DCHECK_LT(i, kNumReferences);
- GetReferences()[i].Assign(object);
- }
+ SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
private:
template<class T>