--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/aot/aotLoader.cpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,261 @@
+/*
+ * Copyright (c) 2016, 2017, 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.
+ *
+ * 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 "precompiled.hpp"
+
+#include "aot/aotCodeHeap.hpp"
+#include "aot/aotLoader.inline.hpp"
+#include "jvmci/jvmciRuntime.hpp"
+#include "oops/method.hpp"
+#include "prims/jvm.h"
+#include "runtime/os.hpp"
+#include "runtime/timerTrace.hpp"
+
+GrowableArray<AOTCodeHeap*>* AOTLoader::_heaps = new(ResourceObj::C_HEAP, mtCode) GrowableArray<AOTCodeHeap*> (2, true);
+GrowableArray<AOTLib*>* AOTLoader::_libraries = new(ResourceObj::C_HEAP, mtCode) GrowableArray<AOTLib*> (2, true);
+
+// Iterate over all AOT CodeHeaps
+#define FOR_ALL_AOT_HEAPS(heap) for (GrowableArrayIterator<AOTCodeHeap*> heap = heaps()->begin(); heap != heaps()->end(); ++heap)
+// Iterate over all AOT Libraries
+#define FOR_ALL_AOT_LIBRARIES(lib) for (GrowableArrayIterator<AOTLib*> lib = libraries()->begin(); lib != libraries()->end(); ++lib)
+
+void AOTLoader::load_for_klass(InstanceKlass* ik, Thread* thread) {
+ if (UseAOT) {
+ FOR_ALL_AOT_HEAPS(heap) {
+ (*heap)->load_klass_data(ik, thread);
+ }
+ }
+}
+
+uint64_t AOTLoader::get_saved_fingerprint(InstanceKlass* ik) {
+ FOR_ALL_AOT_HEAPS(heap) {
+ AOTKlassData* klass_data = (*heap)->find_klass(ik);
+ if (klass_data != NULL) {
+ return klass_data->_fingerprint;
+ }
+ }
+ return 0;
+}
+
+bool AOTLoader::find_klass(InstanceKlass* ik) {
+ FOR_ALL_AOT_HEAPS(heap) {
+ if ((*heap)->find_klass(ik) != NULL) {
+ return true;
+ }
+ }
+ return false;
+}
+
+bool AOTLoader::contains(address p) {
+ FOR_ALL_AOT_HEAPS(heap) {
+ if ((*heap)->contains(p)) {
+ return true;
+ }
+ }
+ return false;
+}
+
+void AOTLoader::oops_do(OopClosure* f) {
+ if (UseAOT) {
+ FOR_ALL_AOT_HEAPS(heap) {
+ (*heap)->oops_do(f);
+ }
+ }
+}
+
+void AOTLoader::metadata_do(void f(Metadata*)) {
+ if (UseAOT) {
+ FOR_ALL_AOT_HEAPS(heap) {
+ (*heap)->metadata_do(f);
+ }
+ }
+}
+
+// Flushing and deoptimization in case of evolution
+void AOTLoader::flush_evol_dependents_on(InstanceKlass* dependee) {
+ // make non entrant and mark for deoptimization
+ FOR_ALL_AOT_HEAPS(heap) {
+ (*heap)->flush_evol_dependents_on(dependee);
+ }
+ Deoptimization::deoptimize_dependents();
+}
+
+/**
+ * List of core modules for which we search for shared libraries.
+ */
+static const char* modules[] = {
+ "java.base",
+ "java.logging",
+ "jdk.compiler",
+ "jdk.scripting.nashorn",
+ "jdk.internal.vm.ci",
+ "jdk.internal.vm.compiler"
+};
+
+void AOTLoader::initialize() {
+ TraceTime timer("AOT initialization", TRACETIME_LOG(Info, aot, startuptime));
+
+ if (FLAG_IS_DEFAULT(UseAOT) && AOTLibrary != NULL) {
+ // Don't need to set UseAOT on command line when AOTLibrary is specified
+ FLAG_SET_DEFAULT(UseAOT, true);
+ }
+ if (UseAOT) {
+ // EagerInitialization is not compatible with AOT
+ if (EagerInitialization) {
+ if (PrintAOT) {
+ warning("EagerInitialization is not compatible with AOT (switching AOT off)");
+ }
+ FLAG_SET_DEFAULT(UseAOT, false);
+ return;
+ }
+
+ // -Xint is not compatible with AOT
+ if (Arguments::is_interpreter_only()) {
+ if (PrintAOT) {
+ warning("-Xint is not compatible with AOT (switching AOT off)");
+ }
+ FLAG_SET_DEFAULT(UseAOT, false);
+ return;
+ }
+
+ const char* home = Arguments::get_java_home();
+ const char* file_separator = os::file_separator();
+
+ for (int i = 0; i < (int) (sizeof(modules) / sizeof(const char*)); i++) {
+ char library[JVM_MAXPATHLEN];
+ jio_snprintf(library, sizeof(library), "%s%slib%slib%s%s%s%s", home, file_separator, file_separator, modules[i], UseCompressedOops ? "-coop" : "", UseG1GC ? "" : "-nong1", os::dll_file_extension());
+ load_library(library, false);
+ }
+
+ // Scan the AOTLibrary option.
+ if (AOTLibrary != NULL) {
+ const int len = (int)strlen(AOTLibrary);
+ char* cp = NEW_C_HEAP_ARRAY(char, len+1, mtCode);
+ if (cp != NULL) { // No memory?
+ memcpy(cp, AOTLibrary, len);
+ cp[len] = '\0';
+ char* end = cp + len;
+ while (cp < end) {
+ const char* name = cp;
+ while ((*cp) != '\0' && (*cp) != '\n' && (*cp) != ',' && (*cp) != ':' && (*cp) != ';') cp++;
+ cp[0] = '\0'; // Terminate name
+ cp++;
+ load_library(name, true);
+ }
+ }
+ }
+ }
+}
+
+void AOTLoader::universe_init() {
+ if (UseAOT && libraries_count() > 0) {
+ // Shifts are static values which initialized by 0 until java heap initialization.
+ // AOT libs are loaded before heap initialized so shift values are not set.
+ // It is okay since ObjectAlignmentInBytes flag which defines shifts value is set before AOT libs are loaded.
+ // Set shifts value based on first AOT library config.
+ if (UseCompressedOops && AOTLib::narrow_oop_shift_initialized()) {
+ int oop_shift = Universe::narrow_oop_shift();
+ if (oop_shift == 0) {
+ Universe::set_narrow_oop_shift(AOTLib::narrow_oop_shift());
+ } else {
+ FOR_ALL_AOT_LIBRARIES(lib) {
+ (*lib)->verify_flag(AOTLib::narrow_oop_shift(), oop_shift, "Universe::narrow_oop_shift");
+ }
+ }
+ if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set
+ int klass_shift = Universe::narrow_klass_shift();
+ if (klass_shift == 0) {
+ Universe::set_narrow_klass_shift(AOTLib::narrow_klass_shift());
+ } else {
+ FOR_ALL_AOT_LIBRARIES(lib) {
+ (*lib)->verify_flag(AOTLib::narrow_klass_shift(), klass_shift, "Universe::narrow_klass_shift");
+ }
+ }
+ }
+ }
+ // Create heaps for all the libraries
+ FOR_ALL_AOT_LIBRARIES(lib) {
+ if ((*lib)->is_valid()) {
+ AOTCodeHeap* heap = new AOTCodeHeap(*lib);
+ {
+ MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
+ add_heap(heap);
+ CodeCache::add_heap(heap);
+ }
+ }
+ }
+ }
+ if (heaps_count() == 0) {
+ if (FLAG_IS_DEFAULT(UseAOT)) {
+ FLAG_SET_DEFAULT(UseAOT, false);
+ }
+ }
+}
+
+void AOTLoader::set_narrow_klass_shift() {
+ // This method could be called from Metaspace::set_narrow_klass_base_and_shift().
+ // In case it is not called (during dump CDS, for example) the corresponding code in
+ // AOTLoader::universe_init(), which is called later, will set the shift value.
+ if (UseAOT && libraries_count() > 0 &&
+ UseCompressedOops && AOTLib::narrow_oop_shift_initialized() &&
+ UseCompressedClassPointers) {
+ int klass_shift = Universe::narrow_klass_shift();
+ if (klass_shift == 0) {
+ Universe::set_narrow_klass_shift(AOTLib::narrow_klass_shift());
+ } else {
+ FOR_ALL_AOT_LIBRARIES(lib) {
+ (*lib)->verify_flag(AOTLib::narrow_klass_shift(), klass_shift, "Universe::narrow_klass_shift");
+ }
+ }
+ }
+}
+
+void AOTLoader::load_library(const char* name, bool exit_on_error) {
+ char ebuf[1024];
+ void* handle = os::dll_load(name, ebuf, sizeof ebuf);
+ if (handle == NULL) {
+ if (exit_on_error) {
+ tty->print_cr("error opening file: %s", ebuf);
+ vm_exit(1);
+ }
+ return;
+ }
+ const int dso_id = libraries_count() + 1;
+ AOTLib* lib = new AOTLib(handle, name, dso_id);
+ if (!lib->is_valid()) {
+ delete lib;
+ os::dll_unload(handle);
+ return;
+ }
+ add_library(lib);
+}
+
+#ifndef PRODUCT
+void AOTLoader::print_statistics() {
+ { ttyLocker ttyl;
+ tty->print_cr("--- AOT Statistics ---");
+ tty->print_cr("AOT libraries loaded: %d", heaps_count());
+ AOTCodeHeap::print_statistics();
+ }
+}
+#endif