ART: Move openjdkjvm to art/

Move libopenjdkjvm out of the runtime directory. Let's not
pollute the runtime library.

Test: m test-art-host
Change-Id: I3864c97c749fd791ab1b43173c2580872cf0d57d

4 files changed, 550 insertions, 0 deletions

diff --git a/openjdkjvm/Android.bp b/openjdkjvm/Android.bp
new file mode 100644
index 0000000000..071b4348f8
--- /dev/null
+++ b/openjdkjvm/Android.bp
@@ -0,0 +1,40 @@
+//
+// Copyright (C) 2016 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.
+
+cc_defaults {
+    name: "libopenjdkjvm_defaults",
+    defaults: ["art_defaults"],
+    host_supported: true,
+    srcs: ["OpenjdkJvm.cc"],
+    shared_libs: [
+        "libbase",
+        "libnativehelper"
+    ],
+}
+
+art_cc_library {
+    name: "libopenjdkjvm",
+    defaults: ["libopenjdkjvm_defaults"],
+    shared_libs: ["libart"],
+}
+
+art_cc_library {
+    name: "libopenjdkjvmd",
+    defaults: [
+        "art_debug_defaults",
+        "libopenjdkjvm_defaults",
+    ],
+    shared_libs: ["libartd"],
+}
diff --git a/openjdkjvm/MODULE_LICENSE_GPL_WITH_CLASSPATH_EXCEPTION b/openjdkjvm/MODULE_LICENSE_GPL_WITH_CLASSPATH_EXCEPTION
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/openjdkjvm/MODULE_LICENSE_GPL_WITH_CLASSPATH_EXCEPTION
diff --git a/openjdkjvm/NOTICE b/openjdkjvm/NOTICE
new file mode 100644
index 0000000000..700a206a6c
--- /dev/null
+++ b/openjdkjvm/NOTICE
@@ -0,0 +1,29 @@
+Copyright (C) 2014 The Android Open Source Project
+DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+
+This file implements interfaces from the file jvm.h. This implementation
+is licensed under the same terms as the file jvm.h.  The
+copyright and license information for the file jvm.h follows.
+
+Copyright (c) 1997, 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.
diff --git a/openjdkjvm/OpenjdkJvm.cc b/openjdkjvm/OpenjdkJvm.cc
new file mode 100644
index 0000000000..b212ea1c20
--- /dev/null
+++ b/openjdkjvm/OpenjdkJvm.cc
@@ -0,0 +1,481 @@
+/* Copyright (C) 2014 The Android Open Source Project
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This file implements interfaces from the file jvm.h. This implementation
+ * is licensed under the same terms as the file jvm.h.  The
+ * copyright and license information for the file jvm.h follows.
+ *
+ * Copyright (c) 1997, 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.
+ */
+
+/*
+ * Services that OpenJDK expects the VM to provide.
+ */
+#include <dlfcn.h>
+#include <limits.h>
+#include <stdio.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+#include "../../libcore/ojluni/src/main/native/jvm.h"  // TODO(narayan): fix it
+
+#include "base/logging.h"
+#include "base/macros.h"
+#include "common_throws.h"
+#include "gc/heap.h"
+#include "handle_scope-inl.h"
+#include "java_vm_ext.h"
+#include "jni_internal.h"
+#include "mirror/class_loader.h"
+#include "mirror/string-inl.h"
+#include "monitor.h"
+#include "native/scoped_fast_native_object_access-inl.h"
+#include "nativehelper/ScopedLocalRef.h"
+#include "nativehelper/ScopedUtfChars.h"
+#include "runtime.h"
+#include "scoped_thread_state_change-inl.h"
+#include "thread.h"
+#include "thread_list.h"
+#include "verify_object.h"
+
+#undef LOG_TAG
+#define LOG_TAG "artopenjdk"
+
+using ::android::base::WARNING;
+using ::android::base::INFO;
+using ::android::base::ERROR;
+using ::android::base::FATAL;
+
+/* posix open() with extensions; used by e.g. ZipFile */
+JNIEXPORT jint JVM_Open(const char* fname, jint flags, jint mode) {
+    /*
+     * Some code seems to want the special return value JVM_EEXIST if the
+     * file open fails due to O_EXCL.
+     */
+    // Don't use JVM_O_DELETE, it's problematic with FUSE, see b/28901232.
+    if (flags & JVM_O_DELETE) {
+        LOG(FATAL) << "JVM_O_DELETE option is not supported (while opening: '"
+                   << fname << "')";
+    }
+
+    int fd = TEMP_FAILURE_RETRY(open(fname, flags & ~JVM_O_DELETE, mode));
+    if (fd < 0) {
+        int err = errno;
+        if (err == EEXIST) {
+            return JVM_EEXIST;
+        } else {
+            return -1;
+        }
+    }
+
+    return fd;
+}
+
+/* posix close() */
+JNIEXPORT jint JVM_Close(jint fd) {
+    // don't want TEMP_FAILURE_RETRY here -- file is closed even if EINTR
+    return close(fd);
+}
+
+/* posix read() */
+JNIEXPORT jint JVM_Read(jint fd, char* buf, jint nbytes) {
+    return TEMP_FAILURE_RETRY(read(fd, buf, nbytes));
+}
+
+/* posix write(); is used to write messages to stderr */
+JNIEXPORT jint JVM_Write(jint fd, char* buf, jint nbytes) {
+    return TEMP_FAILURE_RETRY(write(fd, buf, nbytes));
+}
+
+/* posix lseek() */
+JNIEXPORT jlong JVM_Lseek(jint fd, jlong offset, jint whence) {
+#if !defined(__APPLE__)
+    // NOTE: Using TEMP_FAILURE_RETRY here is busted for LP32 on glibc - the return
+    // value will be coerced into an int32_t.
+    //
+    // lseek64 isn't specified to return EINTR so it shouldn't be necessary
+    // anyway.
+    return lseek64(fd, offset, whence);
+#else
+    // NOTE: This code is compiled for Mac OS but isn't ever run on that
+    // platform.
+    return lseek(fd, offset, whence);
+#endif
+}
+
+/*
+ * "raw monitors" seem to be expected to behave like non-recursive pthread
+ * mutexes.  They're used by ZipFile.
+ */
+JNIEXPORT void* JVM_RawMonitorCreate(void) {
+    pthread_mutex_t* mutex =
+        reinterpret_cast<pthread_mutex_t*>(malloc(sizeof(pthread_mutex_t)));
+    CHECK(mutex != nullptr);
+    CHECK_PTHREAD_CALL(pthread_mutex_init, (mutex, nullptr), "JVM_RawMonitorCreate");
+    return mutex;
+}
+
+JNIEXPORT void JVM_RawMonitorDestroy(void* mon) {
+    CHECK_PTHREAD_CALL(pthread_mutex_destroy,
+                       (reinterpret_cast<pthread_mutex_t*>(mon)),
+                       "JVM_RawMonitorDestroy");
+    free(mon);
+}
+
+JNIEXPORT jint JVM_RawMonitorEnter(void* mon) {
+    return pthread_mutex_lock(reinterpret_cast<pthread_mutex_t*>(mon));
+}
+
+JNIEXPORT void JVM_RawMonitorExit(void* mon) {
+    CHECK_PTHREAD_CALL(pthread_mutex_unlock,
+                       (reinterpret_cast<pthread_mutex_t*>(mon)),
+                       "JVM_RawMonitorExit");
+}
+
+JNIEXPORT char* JVM_NativePath(char* path) {
+    return path;
+}
+
+JNIEXPORT jint JVM_GetLastErrorString(char* buf, int len) {
+#if defined(__GLIBC__) || defined(__BIONIC__)
+  if (len == 0) {
+    return 0;
+  }
+
+  const int err = errno;
+  char* result = strerror_r(err, buf, len);
+  if (result != buf) {
+    strncpy(buf, result, len);
+    buf[len - 1] = '\0';
+  }
+
+  return strlen(buf);
+#else
+  UNUSED(buf);
+  UNUSED(len);
+  return -1;
+#endif
+}
+
+JNIEXPORT int jio_fprintf(FILE* fp, const char* fmt, ...) {
+    va_list args;
+
+    va_start(args, fmt);
+    int len = jio_vfprintf(fp, fmt, args);
+    va_end(args);
+
+    return len;
+}
+
+JNIEXPORT int jio_vfprintf(FILE* fp, const char* fmt, va_list args) {
+    assert(fp != NULL);
+    return vfprintf(fp, fmt, args);
+}
+
+/* posix fsync() */
+JNIEXPORT jint JVM_Sync(jint fd) {
+    return TEMP_FAILURE_RETRY(fsync(fd));
+}
+
+JNIEXPORT void* JVM_FindLibraryEntry(void* handle, const char* name) {
+    return dlsym(handle, name);
+}
+
+JNIEXPORT jlong JVM_CurrentTimeMillis(JNIEnv* env ATTRIBUTE_UNUSED,
+                                      jclass clazz ATTRIBUTE_UNUSED) {
+    struct timeval tv;
+    gettimeofday(&tv, (struct timezone *) NULL);
+    jlong when = tv.tv_sec * 1000LL + tv.tv_usec / 1000;
+    return when;
+}
+
+JNIEXPORT jint JVM_Socket(jint domain, jint type, jint protocol) {
+    return TEMP_FAILURE_RETRY(socket(domain, type, protocol));
+}
+
+JNIEXPORT jint JVM_InitializeSocketLibrary() {
+  return 0;
+}
+
+int jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args) {
+  if ((intptr_t)count <= 0) return -1;
+  return vsnprintf(str, count, fmt, args);
+}
+
+int jio_snprintf(char *str, size_t count, const char *fmt, ...) {
+  va_list args;
+  int len;
+  va_start(args, fmt);
+  len = jio_vsnprintf(str, count, fmt, args);
+  va_end(args);
+  return len;
+}
+
+JNIEXPORT jint JVM_SetSockOpt(jint fd, int level, int optname,
+    const char* optval, int optlen) {
+  return TEMP_FAILURE_RETRY(setsockopt(fd, level, optname, optval, optlen));
+}
+
+JNIEXPORT jint JVM_SocketShutdown(jint fd, jint howto) {
+  return TEMP_FAILURE_RETRY(shutdown(fd, howto));
+}
+
+JNIEXPORT jint JVM_GetSockOpt(jint fd, int level, int optname, char* optval,
+  int* optlen) {
+  socklen_t len = *optlen;
+  int cc = TEMP_FAILURE_RETRY(getsockopt(fd, level, optname, optval, &len));
+  *optlen = len;
+  return cc;
+}
+
+JNIEXPORT jint JVM_GetSockName(jint fd, struct sockaddr* addr, int* addrlen) {
+  socklen_t len = *addrlen;
+  int cc = TEMP_FAILURE_RETRY(getsockname(fd, addr, &len));
+  *addrlen = len;
+  return cc;
+}
+
+JNIEXPORT jint JVM_SocketAvailable(jint fd, jint* result) {
+  if (TEMP_FAILURE_RETRY(ioctl(fd, FIONREAD, result)) < 0) {
+      return JNI_FALSE;
+  }
+
+  return JNI_TRUE;
+}
+
+JNIEXPORT jint JVM_Send(jint fd, char* buf, jint nBytes, jint flags) {
+  return TEMP_FAILURE_RETRY(send(fd, buf, nBytes, flags));
+}
+
+JNIEXPORT jint JVM_SocketClose(jint fd) {
+  // Don't want TEMP_FAILURE_RETRY here -- file is closed even if EINTR.
+  return close(fd);
+}
+
+JNIEXPORT jint JVM_Listen(jint fd, jint count) {
+  return TEMP_FAILURE_RETRY(listen(fd, count));
+}
+
+JNIEXPORT jint JVM_Connect(jint fd, struct sockaddr* addr, jint addrlen) {
+  return TEMP_FAILURE_RETRY(connect(fd, addr, addrlen));
+}
+
+JNIEXPORT int JVM_GetHostName(char* name, int namelen) {
+  return TEMP_FAILURE_RETRY(gethostname(name, namelen));
+}
+
+JNIEXPORT jstring JVM_InternString(JNIEnv* env, jstring jstr) {
+  art::ScopedFastNativeObjectAccess soa(env);
+  art::ObjPtr<art::mirror::String> s = soa.Decode<art::mirror::String>(jstr);
+  return soa.AddLocalReference<jstring>(s->Intern());
+}
+
+JNIEXPORT jlong JVM_FreeMemory(void) {
+  return art::Runtime::Current()->GetHeap()->GetFreeMemory();
+}
+
+JNIEXPORT jlong JVM_TotalMemory(void) {
+  return art::Runtime::Current()->GetHeap()->GetTotalMemory();
+}
+
+JNIEXPORT jlong JVM_MaxMemory(void) {
+  return art::Runtime::Current()->GetHeap()->GetMaxMemory();
+}
+
+JNIEXPORT void JVM_GC(void) {
+  if (art::Runtime::Current()->IsExplicitGcDisabled()) {
+      LOG(INFO) << "Explicit GC skipped.";
+      return;
+  }
+  art::Runtime::Current()->GetHeap()->CollectGarbage(false);
+}
+
+JNIEXPORT __attribute__((noreturn)) void JVM_Exit(jint status) {
+  LOG(INFO) << "System.exit called, status: " << status;
+  art::Runtime::Current()->CallExitHook(status);
+  exit(status);
+}
+
+JNIEXPORT jstring JVM_NativeLoad(JNIEnv* env,
+                                 jstring javaFilename,
+                                 jobject javaLoader,
+                                 jstring javaLibrarySearchPath) {
+  ScopedUtfChars filename(env, javaFilename);
+  if (filename.c_str() == NULL) {
+    return NULL;
+  }
+
+  std::string error_msg;
+  {
+    art::JavaVMExt* vm = art::Runtime::Current()->GetJavaVM();
+    bool success = vm->LoadNativeLibrary(env,
+                                         filename.c_str(),
+                                         javaLoader,
+                                         javaLibrarySearchPath,
+                                         &error_msg);
+    if (success) {
+      return nullptr;
+    }
+  }
+
+  // Don't let a pending exception from JNI_OnLoad cause a CheckJNI issue with NewStringUTF.
+  env->ExceptionClear();
+  return env->NewStringUTF(error_msg.c_str());
+}
+
+JNIEXPORT void JVM_StartThread(JNIEnv* env, jobject jthread, jlong stack_size, jboolean daemon) {
+  art::Thread::CreateNativeThread(env, jthread, stack_size, daemon == JNI_TRUE);
+}
+
+JNIEXPORT void JVM_SetThreadPriority(JNIEnv* env, jobject jthread, jint prio) {
+  art::ScopedObjectAccess soa(env);
+  art::MutexLock mu(soa.Self(), *art::Locks::thread_list_lock_);
+  art::Thread* thread = art::Thread::FromManagedThread(soa, jthread);
+  if (thread != NULL) {
+    thread->SetNativePriority(prio);
+  }
+}
+
+JNIEXPORT void JVM_Yield(JNIEnv* env ATTRIBUTE_UNUSED, jclass threadClass ATTRIBUTE_UNUSED) {
+  sched_yield();
+}
+
+JNIEXPORT void JVM_Sleep(JNIEnv* env, jclass threadClass ATTRIBUTE_UNUSED,
+                         jobject java_lock, jlong millis) {
+  art::ScopedFastNativeObjectAccess soa(env);
+  art::ObjPtr<art::mirror::Object> lock = soa.Decode<art::mirror::Object>(java_lock);
+  art::Monitor::Wait(art::Thread::Current(), lock.Ptr(), millis, 0, true, art::kSleeping);
+}
+
+JNIEXPORT jobject JVM_CurrentThread(JNIEnv* env, jclass unused ATTRIBUTE_UNUSED) {
+  art::ScopedFastNativeObjectAccess soa(env);
+  return soa.AddLocalReference<jobject>(soa.Self()->GetPeer());
+}
+
+JNIEXPORT void JVM_Interrupt(JNIEnv* env, jobject jthread) {
+  art::ScopedFastNativeObjectAccess soa(env);
+  art::MutexLock mu(soa.Self(), *art::Locks::thread_list_lock_);
+  art::Thread* thread = art::Thread::FromManagedThread(soa, jthread);
+  if (thread != nullptr) {
+    thread->Interrupt(soa.Self());
+  }
+}
+
+JNIEXPORT jboolean JVM_IsInterrupted(JNIEnv* env, jobject jthread, jboolean clearInterrupted) {
+  if (clearInterrupted) {
+    return static_cast<art::JNIEnvExt*>(env)->self->Interrupted() ? JNI_TRUE : JNI_FALSE;
+  } else {
+    art::ScopedFastNativeObjectAccess soa(env);
+    art::MutexLock mu(soa.Self(), *art::Locks::thread_list_lock_);
+    art::Thread* thread = art::Thread::FromManagedThread(soa, jthread);
+    return (thread != nullptr) ? thread->IsInterrupted() : JNI_FALSE;
+  }
+}
+
+JNIEXPORT jboolean JVM_HoldsLock(JNIEnv* env, jclass unused ATTRIBUTE_UNUSED, jobject jobj) {
+  art::ScopedObjectAccess soa(env);
+  art::ObjPtr<art::mirror::Object> object = soa.Decode<art::mirror::Object>(jobj);
+  if (object == nullptr) {
+    art::ThrowNullPointerException("object == null");
+    return JNI_FALSE;
+  }
+  return soa.Self()->HoldsLock(object.Ptr());
+}
+
+JNIEXPORT void JVM_SetNativeThreadName(JNIEnv* env, jobject jthread, jstring java_name) {
+  ScopedUtfChars name(env, java_name);
+  {
+    art::ScopedObjectAccess soa(env);
+    if (soa.Decode<art::mirror::Object>(jthread) == soa.Self()->GetPeer()) {
+      soa.Self()->SetThreadName(name.c_str());
+      return;
+    }
+  }
+  // Suspend thread to avoid it from killing itself while we set its name. We don't just hold the
+  // thread list lock to avoid this, as setting the thread name causes mutator to lock/unlock
+  // in the DDMS send code.
+  art::ThreadList* thread_list = art::Runtime::Current()->GetThreadList();
+  bool timed_out;
+  // Take suspend thread lock to avoid races with threads trying to suspend this one.
+  art::Thread* thread;
+  {
+    thread = thread_list->SuspendThreadByPeer(jthread,
+                                              true,
+                                              art::SuspendReason::kInternal,
+                                              &timed_out);
+  }
+  if (thread != NULL) {
+    {
+      art::ScopedObjectAccess soa(env);
+      thread->SetThreadName(name.c_str());
+    }
+    bool resumed = thread_list->Resume(thread, art::SuspendReason::kInternal);
+    DCHECK(resumed);
+  } else if (timed_out) {
+    LOG(ERROR) << "Trying to set thread name to '" << name.c_str() << "' failed as the thread "
+        "failed to suspend within a generous timeout.";
+  }
+}
+
+JNIEXPORT jint JVM_IHashCode(JNIEnv* env ATTRIBUTE_UNUSED,
+                             jobject javaObject ATTRIBUTE_UNUSED) {
+  UNIMPLEMENTED(FATAL) << "JVM_IHashCode is not implemented";
+  return 0;
+}
+
+JNIEXPORT jlong JVM_NanoTime(JNIEnv* env ATTRIBUTE_UNUSED, jclass unused ATTRIBUTE_UNUSED) {
+  UNIMPLEMENTED(FATAL) << "JVM_NanoTime is not implemented";
+  return 0L;
+}
+
+JNIEXPORT void JVM_ArrayCopy(JNIEnv* /* env */, jclass /* unused */, jobject /* javaSrc */,
+                             jint /* srcPos */, jobject /* javaDst */, jint /* dstPos */,
+                             jint /* length */) {
+  UNIMPLEMENTED(FATAL) << "JVM_ArrayCopy is not implemented";
+}
+
+JNIEXPORT jint JVM_FindSignal(const char* name ATTRIBUTE_UNUSED) {
+  LOG(FATAL) << "JVM_FindSignal is not implemented";
+  return 0;
+}
+
+JNIEXPORT void* JVM_RegisterSignal(jint signum ATTRIBUTE_UNUSED, void* handler ATTRIBUTE_UNUSED) {
+  LOG(FATAL) << "JVM_RegisterSignal is not implemented";
+  return nullptr;
+}
+
+JNIEXPORT jboolean JVM_RaiseSignal(jint signum ATTRIBUTE_UNUSED) {
+  LOG(FATAL) << "JVM_RaiseSignal is not implemented";
+  return JNI_FALSE;
+}
+
+JNIEXPORT __attribute__((noreturn))  void JVM_Halt(jint code) {
+  exit(code);
+}
+
+JNIEXPORT jboolean JVM_IsNaN(jdouble d) {
+  return isnan(d);
+}