[vmkit-commits] [PATCH] Impl JVM_GetClassContext

[Will Dietz]

Inlined below.

~Will

>From 27a8b66190db992968e8674d3832bb6176cd9b35 Mon Sep 17 00:00:00 2001
From: Will Dietz <w at wdtz.org>
Date: Wed, 2 Nov 2011 20:36:57 -0500
Subject: [PATCH 04/17] Impl JVM_GetClassContext

---
 lib/J3/ClassLib/OpenJDK/OpenJDK.inc |   32 +++++++++++++++++++++++++++++++-
 1 files changed, 31 insertions(+), 1 deletions(-)

diff --git a/lib/J3/ClassLib/OpenJDK/OpenJDK.inc
b/lib/J3/ClassLib/OpenJDK/OpenJDK.inc
index 30a670f..9305e66 100644
--- a/lib/J3/ClassLib/OpenJDK/OpenJDK.inc
+++ b/lib/J3/ClassLib/OpenJDK/OpenJDK.inc
@@ -742,7 +742,37 @@ JVM_CurrentClassLoader(JNIEnv *env) {

 JNIEXPORT jobjectArray JNICALL
 JVM_GetClassContext(JNIEnv *env) {
-  NYI();
+  ArrayObject* result = NULL;
+  JavaObject* delegatee = NULL;
+  llvm_gcroot(result, 0);
+  llvm_gcroot(delegatee, 0);
+
+  BEGIN_JNI_EXCEPTION
+
+  JavaThread* th = JavaThread::get();
+  Jnjvm* vm = th->getJVM();
+  uint32 length = th->getFrameContextLength();
+
+  mvm::ThreadAllocator allocator;
+  uintptr_t* buffer = (uintptr_t*)allocator.Allocate(length *
sizeof(uintptr_t));
+
+  uint32 finalSize = th->getJavaFrameContext((void**)buffer);
+
+  result = (ArrayObject*)
+    vm->upcalls->stackTraceArray->doNew(finalSize, vm);
+
+  for (uint32 i = 0; i != finalSize; ++i) {
+    JavaMethod* meth = ((JavaMethod**)buffer)[i];
+    assert(meth && "Wrong stack trace");
+    delegatee = meth->classDef->getClassDelegatee(vm);;
+    ArrayObject::setElement(result, delegatee, i);
+  }
+
+  RETURN_FROM_JNI((jobjectArray)th->pushJNIRef(result));
+
+  END_JNI_EXCEPTION
+
+  return 0;
 }

 JNIEXPORT jint JNICALL
-- 
1.7.5.1