1 files changed, 126 insertions, 0 deletions
diff --git a/test/004-StackWalk/stack_walk_jni.cc b/test/004-StackWalk/stack_walk_jni.cc
new file mode 100644
index 0000000000..30a0d5906a
--- /dev/null
+++ b/test/004-StackWalk/stack_walk_jni.cc
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <memory>
+
+#include "class_linker.h"
+#include "gc_map.h"
+#include "mirror/art_method-inl.h"
+#include "mirror/class-inl.h"
+#include "mirror/object_array-inl.h"
+#include "mirror/object-inl.h"
+#include "jni.h"
+#include "scoped_thread_state_change.h"
+
+namespace art {
+
+#define REG(reg_bitmap, reg) \
+    (((reg) < m->GetCodeItem()->registers_size_) && \
+     ((*((reg_bitmap) + (reg)/8) >> ((reg) % 8) ) & 0x01))
+
+#define CHECK_REGS(...) if (!IsShadowFrame()) { \
+    int t[] = {__VA_ARGS__}; \
+    int t_size = sizeof(t) / sizeof(*t); \
+    for (int i = 0; i < t_size; ++i) \
+      CHECK(REG(reg_bitmap, t[i])) << "Error: Reg " << i << " is not in RegisterMap"; \
+  }
+
+static int gJava_StackWalk_refmap_calls = 0;
+
+struct TestReferenceMapVisitor : public StackVisitor {
+  explicit TestReferenceMapVisitor(Thread* thread)
+      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_)
+      : StackVisitor(thread, NULL) {
+  }
+
+  bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
+    mirror::ArtMethod* m = GetMethod();
+    CHECK(m != NULL);
+    LOG(INFO) << "At " << PrettyMethod(m, false);
+
+    if (m->IsCalleeSaveMethod() || m->IsNative()) {
+      LOG(WARNING) << "no PC for " << PrettyMethod(m);
+      CHECK_EQ(GetDexPc(), DexFile::kDexNoIndex);
+      return true;
+    }
+    const uint8_t* reg_bitmap = NULL;
+    if (!IsShadowFrame()) {
+      NativePcOffsetToReferenceMap map(m->GetNativeGcMap());
+      reg_bitmap = map.FindBitMap(GetNativePcOffset());
+    }
+    StringPiece m_name(m->GetName());
+
+    // Given the method name and the number of times the method has been called,
+    // we know the Dex registers with live reference values. Assert that what we
+    // find is what is expected.
+    if (m_name == "f") {
+      if (gJava_StackWalk_refmap_calls == 1) {
+        CHECK_EQ(1U, GetDexPc());
+        CHECK_REGS(1);
+      } else {
+        CHECK_EQ(gJava_StackWalk_refmap_calls, 2);
+        CHECK_EQ(5U, GetDexPc());
+        CHECK_REGS(1);
+      }
+    } else if (m_name == "g") {
+      if (gJava_StackWalk_refmap_calls == 1) {
+        CHECK_EQ(0xcU, GetDexPc());
+        CHECK_REGS(0, 2);  // Note that v1 is not in the minimal root set
+      } else {
+        CHECK_EQ(gJava_StackWalk_refmap_calls, 2);
+        CHECK_EQ(0xcU, GetDexPc());
+        CHECK_REGS(0, 2);
+      }
+    } else if (m_name == "shlemiel") {
+      if (gJava_StackWalk_refmap_calls == 1) {
+        CHECK_EQ(0x380U, GetDexPc());
+        CHECK_REGS(2, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 25);
+      } else {
+        CHECK_EQ(gJava_StackWalk_refmap_calls, 2);
+        CHECK_EQ(0x380U, GetDexPc());
+        CHECK_REGS(2, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 25);
+      }
+    }
+
+    return true;
+  }
+};
+
+extern "C" JNIEXPORT jint JNICALL Java_Main_stackmap(JNIEnv*, jobject, jint count) {
+  ScopedObjectAccess soa(Thread::Current());
+  CHECK_EQ(count, 0);
+  gJava_StackWalk_refmap_calls++;
+
+  // Visitor
+  TestReferenceMapVisitor mapper(soa.Self());
+  mapper.WalkStack();
+
+  return count + 1;
+}
+
+extern "C" JNIEXPORT jint JNICALL Java_Main_refmap2(JNIEnv*, jobject, jint count) {
+  ScopedObjectAccess soa(Thread::Current());
+  gJava_StackWalk_refmap_calls++;
+
+  // Visitor
+  TestReferenceMapVisitor mapper(soa.Self());
+  mapper.WalkStack();
+
+  return count + 1;
+}
+
+}  // namespace art