ART: Add method code item functions
Add support for GetArgumentsSize, GetMaxLocals and GetMethodLocation
support. Add tests.
Bug: 34163329
Test: m test-art-host-run-test-910-methods
Change-Id: I14b5d02bf0513dc5a8d3f4ea17c849ab08b8554a
diff --git a/runtime/openjdkjvmti/OpenjdkJvmTi.cc b/runtime/openjdkjvmti/OpenjdkJvmTi.cc
index fa55e85..c32f8b7 100644
--- a/runtime/openjdkjvmti/OpenjdkJvmTi.cc
+++ b/runtime/openjdkjvmti/OpenjdkJvmTi.cc
@@ -689,13 +689,13 @@
static jvmtiError GetMaxLocals(jvmtiEnv* env,
jmethodID method,
jint* max_ptr) {
- return ERR(NOT_IMPLEMENTED);
+ return MethodUtil::GetMaxLocals(env, method, max_ptr);
}
static jvmtiError GetArgumentsSize(jvmtiEnv* env,
jmethodID method,
jint* size_ptr) {
- return ERR(NOT_IMPLEMENTED);
+ return MethodUtil::GetArgumentsSize(env, method, size_ptr);
}
static jvmtiError GetLineNumberTable(jvmtiEnv* env,
@@ -709,7 +709,7 @@
jmethodID method,
jlocation* start_location_ptr,
jlocation* end_location_ptr) {
- return ERR(NOT_IMPLEMENTED);
+ return MethodUtil::GetMethodLocation(env, method, start_location_ptr, end_location_ptr);
}
static jvmtiError GetLocalVariableTable(jvmtiEnv* env,
diff --git a/runtime/openjdkjvmti/ti_method.cc b/runtime/openjdkjvmti/ti_method.cc
index 02b6090..bb48a2b 100644
--- a/runtime/openjdkjvmti/ti_method.cc
+++ b/runtime/openjdkjvmti/ti_method.cc
@@ -41,6 +41,64 @@
namespace openjdkjvmti {
+jvmtiError MethodUtil::GetArgumentsSize(jvmtiEnv* env ATTRIBUTE_UNUSED,
+ jmethodID method,
+ jint* size_ptr) {
+ if (method == nullptr) {
+ return ERR(INVALID_METHODID);
+ }
+ art::ArtMethod* art_method = art::jni::DecodeArtMethod(method);
+
+ if (art_method->IsNative()) {
+ return ERR(NATIVE_METHOD);
+ }
+
+ if (size_ptr == nullptr) {
+ return ERR(NULL_POINTER);
+ }
+
+ art::ScopedObjectAccess soa(art::Thread::Current());
+ if (art_method->IsProxyMethod() || art_method->IsAbstract()) {
+ // This isn't specified as an error case, so return 0.
+ *size_ptr = 0;
+ return ERR(NONE);
+ }
+
+ DCHECK_NE(art_method->GetCodeItemOffset(), 0u);
+ *size_ptr = art_method->GetCodeItem()->ins_size_;
+
+ return ERR(NONE);
+}
+
+jvmtiError MethodUtil::GetMaxLocals(jvmtiEnv* env ATTRIBUTE_UNUSED,
+ jmethodID method,
+ jint* max_ptr) {
+ if (method == nullptr) {
+ return ERR(INVALID_METHODID);
+ }
+ art::ArtMethod* art_method = art::jni::DecodeArtMethod(method);
+
+ if (art_method->IsNative()) {
+ return ERR(NATIVE_METHOD);
+ }
+
+ if (max_ptr == nullptr) {
+ return ERR(NULL_POINTER);
+ }
+
+ art::ScopedObjectAccess soa(art::Thread::Current());
+ if (art_method->IsProxyMethod() || art_method->IsAbstract()) {
+ // This isn't specified as an error case, so return 0.
+ *max_ptr = 0;
+ return ERR(NONE);
+ }
+
+ DCHECK_NE(art_method->GetCodeItemOffset(), 0u);
+ *max_ptr = art_method->GetCodeItem()->registers_size_;
+
+ return ERR(NONE);
+}
+
jvmtiError MethodUtil::GetMethodName(jvmtiEnv* env,
jmethodID method,
char** name_ptr,
@@ -107,6 +165,38 @@
return ERR(NONE);
}
+jvmtiError MethodUtil::GetMethodLocation(jvmtiEnv* env ATTRIBUTE_UNUSED,
+ jmethodID method,
+ jlocation* start_location_ptr,
+ jlocation* end_location_ptr) {
+ if (method == nullptr) {
+ return ERR(INVALID_METHODID);
+ }
+ art::ArtMethod* art_method = art::jni::DecodeArtMethod(method);
+
+ if (art_method->IsNative()) {
+ return ERR(NATIVE_METHOD);
+ }
+
+ if (start_location_ptr == nullptr || end_location_ptr == nullptr) {
+ return ERR(NULL_POINTER);
+ }
+
+ art::ScopedObjectAccess soa(art::Thread::Current());
+ if (art_method->IsProxyMethod() || art_method->IsAbstract()) {
+ // This isn't specified as an error case, so return 0/0.
+ *start_location_ptr = 0;
+ *end_location_ptr = 0;
+ return ERR(NONE);
+ }
+
+ DCHECK_NE(art_method->GetCodeItemOffset(), 0u);
+ *start_location_ptr = 0;
+ *end_location_ptr = art_method->GetCodeItem()->insns_size_in_code_units_ - 1;
+
+ return ERR(NONE);
+}
+
jvmtiError MethodUtil::GetMethodModifiers(jvmtiEnv* env ATTRIBUTE_UNUSED,
jmethodID method,
jint* modifiers_ptr) {
diff --git a/runtime/openjdkjvmti/ti_method.h b/runtime/openjdkjvmti/ti_method.h
index fb2fbb2..ed60620 100644
--- a/runtime/openjdkjvmti/ti_method.h
+++ b/runtime/openjdkjvmti/ti_method.h
@@ -39,6 +39,10 @@
class MethodUtil {
public:
+ static jvmtiError GetArgumentsSize(jvmtiEnv* env, jmethodID method, jint* size_ptr);
+
+ static jvmtiError GetMaxLocals(jvmtiEnv* env, jmethodID method, jint* max_ptr);
+
static jvmtiError GetMethodName(jvmtiEnv* env,
jmethodID method,
char** name_ptr,
@@ -49,6 +53,11 @@
jmethodID method,
jclass* declaring_class_ptr);
+ static jvmtiError GetMethodLocation(jvmtiEnv* env,
+ jmethodID method,
+ jlocation* start_location_ptr,
+ jlocation* end_location_ptr);
+
static jvmtiError GetMethodModifiers(jvmtiEnv* env,
jmethodID method,
jint* modifiers_ptr);