1 files changed, 114 insertions, 0 deletions
diff --git a/openjdkjvmti/ti_breakpoint.cc b/openjdkjvmti/ti_breakpoint.cc
new file mode 100644
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+++ b/openjdkjvmti/ti_breakpoint.cc
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+/* Copyright (C) 2017 The Android Open Source Project
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This file implements interfaces from the file jvmti.h. This implementation
+ * is licensed under the same terms as the file jvmti.h.  The
+ * copyright and license information for the file jvmti.h follows.
+ *
+ * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#include <functional>
+
+#include "ti_breakpoint.h"
+
+#include "art_jvmti.h"
+#include "art_method-inl.h"
+#include "base/enums.h"
+#include "dex_file_annotations.h"
+#include "events-inl.h"
+#include "jni_internal.h"
+#include "mirror/class-inl.h"
+#include "mirror/object_array-inl.h"
+#include "modifiers.h"
+#include "nativehelper/ScopedLocalRef.h"
+#include "runtime_callbacks.h"
+#include "scoped_thread_state_change-inl.h"
+#include "thread-current-inl.h"
+#include "thread_list.h"
+#include "ti_phase.h"
+
+namespace openjdkjvmti {
+
+size_t Breakpoint::hash() const {
+  return std::hash<uintptr_t> {}(reinterpret_cast<uintptr_t>(method_))
+      ^ std::hash<jlocation> {}(location_);
+}
+
+Breakpoint::Breakpoint(art::ArtMethod* m, jlocation loc) : method_(m), location_(loc) {
+  DCHECK(!m->IsDefault() || !m->IsCopied() || !m->IsInvokable())
+      << "Flags are: 0x" << std::hex << m->GetAccessFlags();
+}
+
+void BreakpointUtil::RemoveBreakpointsInClass(ArtJvmTiEnv* env, art::mirror::Class* klass) {
+  std::vector<Breakpoint> to_remove;
+  for (const Breakpoint& b : env->breakpoints) {
+    if (b.GetMethod()->GetDeclaringClass() == klass) {
+      to_remove.push_back(b);
+    }
+  }
+  for (const Breakpoint& b : to_remove) {
+    auto it = env->breakpoints.find(b);
+    DCHECK(it != env->breakpoints.end());
+    env->breakpoints.erase(it);
+  }
+}
+
+jvmtiError BreakpointUtil::SetBreakpoint(jvmtiEnv* jenv, jmethodID method, jlocation location) {
+  ArtJvmTiEnv* env = ArtJvmTiEnv::AsArtJvmTiEnv(jenv);
+  if (method == nullptr) {
+    return ERR(INVALID_METHODID);
+  }
+  // Need to get mutator_lock_ so we can find the interface version of any default methods.
+  art::ScopedObjectAccess soa(art::Thread::Current());
+  art::ArtMethod* art_method = art::jni::DecodeArtMethod(method)->GetCanonicalMethod();
+  if (location < 0 || static_cast<uint32_t>(location) >=
+      art_method->GetCodeItem()->insns_size_in_code_units_) {
+    return ERR(INVALID_LOCATION);
+  }
+  auto res_pair = env->breakpoints.insert(/* Breakpoint */ {art_method, location});
+  if (!res_pair.second) {
+    // Didn't get inserted because it's already present!
+    return ERR(DUPLICATE);
+  }
+  return OK;
+}
+
+jvmtiError BreakpointUtil::ClearBreakpoint(jvmtiEnv* jenv, jmethodID method, jlocation location) {
+  ArtJvmTiEnv* env = ArtJvmTiEnv::AsArtJvmTiEnv(jenv);
+  if (method == nullptr) {
+    return ERR(INVALID_METHODID);
+  }
+  // Need to get mutator_lock_ so we can find the interface version of any default methods.
+  art::ScopedObjectAccess soa(art::Thread::Current());
+  auto pos = env->breakpoints.find(
+      /* Breakpoint */ {art::jni::DecodeArtMethod(method)->GetCanonicalMethod(), location});
+  if (pos == env->breakpoints.end()) {
+    return ERR(NOT_FOUND);
+  }
+  env->breakpoints.erase(pos);
+  return OK;
+}
+
+}  // namespace openjdkjvmti