--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/ci/ciEnv.cpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,1299 @@
+/*
+ * Copyright (c) 1999, 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 "ci/ciConstant.hpp"
+#include "ci/ciEnv.hpp"
+#include "ci/ciField.hpp"
+#include "ci/ciInstance.hpp"
+#include "ci/ciInstanceKlass.hpp"
+#include "ci/ciMethod.hpp"
+#include "ci/ciNullObject.hpp"
+#include "ci/ciReplay.hpp"
+#include "ci/ciUtilities.hpp"
+#include "classfile/systemDictionary.hpp"
+#include "classfile/vmSymbols.hpp"
+#include "code/codeCache.hpp"
+#include "code/scopeDesc.hpp"
+#include "compiler/compileBroker.hpp"
+#include "compiler/compileLog.hpp"
+#include "compiler/disassembler.hpp"
+#include "gc/shared/collectedHeap.inline.hpp"
+#include "interpreter/linkResolver.hpp"
+#include "memory/allocation.inline.hpp"
+#include "memory/oopFactory.hpp"
+#include "memory/resourceArea.hpp"
+#include "memory/universe.inline.hpp"
+#include "oops/methodData.hpp"
+#include "oops/objArrayKlass.hpp"
+#include "oops/objArrayOop.inline.hpp"
+#include "oops/oop.inline.hpp"
+#include "prims/jvm.h"
+#include "prims/jvmtiExport.hpp"
+#include "runtime/init.hpp"
+#include "runtime/reflection.hpp"
+#include "runtime/sharedRuntime.hpp"
+#include "runtime/thread.inline.hpp"
+#include "trace/tracing.hpp"
+#include "utilities/dtrace.hpp"
+#include "utilities/macros.hpp"
+#ifdef COMPILER1
+#include "c1/c1_Runtime1.hpp"
+#endif
+#ifdef COMPILER2
+#include "opto/runtime.hpp"
+#endif
+
+// ciEnv
+//
+// This class is the top level broker for requests from the compiler
+// to the VM.
+
+ciObject* ciEnv::_null_object_instance;
+
+#define WK_KLASS_DEFN(name, ignore_s, ignore_o) ciInstanceKlass* ciEnv::_##name = NULL;
+WK_KLASSES_DO(WK_KLASS_DEFN)
+#undef WK_KLASS_DEFN
+
+ciSymbol* ciEnv::_unloaded_cisymbol = NULL;
+ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL;
+ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL;
+
+jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL;
+jobject ciEnv::_ArrayStoreException_handle = NULL;
+jobject ciEnv::_ClassCastException_handle = NULL;
+
+#ifndef PRODUCT
+static bool firstEnv = true;
+#endif /* PRODUCT */
+
+// ------------------------------------------------------------------
+// ciEnv::ciEnv
+ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter)
+ : _ciEnv_arena(mtCompiler) {
+ VM_ENTRY_MARK;
+
+ // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
+ thread->set_env(this);
+ assert(ciEnv::current() == this, "sanity");
+
+ _oop_recorder = NULL;
+ _debug_info = NULL;
+ _dependencies = NULL;
+ _failure_reason = NULL;
+ _inc_decompile_count_on_failure = true;
+ _compilable = MethodCompilable;
+ _break_at_compile = false;
+ _compiler_data = NULL;
+#ifndef PRODUCT
+ assert(!firstEnv, "not initialized properly");
+#endif /* !PRODUCT */
+
+ _system_dictionary_modification_counter = system_dictionary_modification_counter;
+ _num_inlined_bytecodes = 0;
+ assert(task == NULL || thread->task() == task, "sanity");
+ _task = task;
+ _log = NULL;
+
+ // Temporary buffer for creating symbols and such.
+ _name_buffer = NULL;
+ _name_buffer_len = 0;
+
+ _arena = &_ciEnv_arena;
+ _factory = new (_arena) ciObjectFactory(_arena, 128);
+
+ // Preload commonly referenced system ciObjects.
+
+ // During VM initialization, these instances have not yet been created.
+ // Assertions ensure that these instances are not accessed before
+ // their initialization.
+
+ assert(Universe::is_fully_initialized(), "should be complete");
+
+ oop o = Universe::null_ptr_exception_instance();
+ assert(o != NULL, "should have been initialized");
+ _NullPointerException_instance = get_object(o)->as_instance();
+ o = Universe::arithmetic_exception_instance();
+ assert(o != NULL, "should have been initialized");
+ _ArithmeticException_instance = get_object(o)->as_instance();
+
+ _ArrayIndexOutOfBoundsException_instance = NULL;
+ _ArrayStoreException_instance = NULL;
+ _ClassCastException_instance = NULL;
+ _the_null_string = NULL;
+ _the_min_jint_string = NULL;
+
+ _jvmti_can_hotswap_or_post_breakpoint = false;
+ _jvmti_can_access_local_variables = false;
+ _jvmti_can_post_on_exceptions = false;
+ _jvmti_can_pop_frame = false;
+}
+
+ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) {
+ ASSERT_IN_VM;
+
+ // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
+ CompilerThread* current_thread = CompilerThread::current();
+ assert(current_thread->env() == NULL, "must be");
+ current_thread->set_env(this);
+ assert(ciEnv::current() == this, "sanity");
+
+ _oop_recorder = NULL;
+ _debug_info = NULL;
+ _dependencies = NULL;
+ _failure_reason = NULL;
+ _inc_decompile_count_on_failure = true;
+ _compilable = MethodCompilable_never;
+ _break_at_compile = false;
+ _compiler_data = NULL;
+#ifndef PRODUCT
+ assert(firstEnv, "must be first");
+ firstEnv = false;
+#endif /* !PRODUCT */
+
+ _system_dictionary_modification_counter = 0;
+ _num_inlined_bytecodes = 0;
+ _task = NULL;
+ _log = NULL;
+
+ // Temporary buffer for creating symbols and such.
+ _name_buffer = NULL;
+ _name_buffer_len = 0;
+
+ _arena = arena;
+ _factory = new (_arena) ciObjectFactory(_arena, 128);
+
+ // Preload commonly referenced system ciObjects.
+
+ // During VM initialization, these instances have not yet been created.
+ // Assertions ensure that these instances are not accessed before
+ // their initialization.
+
+ assert(Universe::is_fully_initialized(), "must be");
+
+ _NullPointerException_instance = NULL;
+ _ArithmeticException_instance = NULL;
+ _ArrayIndexOutOfBoundsException_instance = NULL;
+ _ArrayStoreException_instance = NULL;
+ _ClassCastException_instance = NULL;
+ _the_null_string = NULL;
+ _the_min_jint_string = NULL;
+
+ _jvmti_can_hotswap_or_post_breakpoint = false;
+ _jvmti_can_access_local_variables = false;
+ _jvmti_can_post_on_exceptions = false;
+ _jvmti_can_pop_frame = false;
+}
+
+ciEnv::~ciEnv() {
+ GUARDED_VM_ENTRY(
+ CompilerThread* current_thread = CompilerThread::current();
+ _factory->remove_symbols();
+ // Need safepoint to clear the env on the thread. RedefineClasses might
+ // be reading it.
+ current_thread->set_env(NULL);
+ )
+}
+
+// ------------------------------------------------------------------
+// Cache Jvmti state
+void ciEnv::cache_jvmti_state() {
+ VM_ENTRY_MARK;
+ // Get Jvmti capabilities under lock to get consistant values.
+ MutexLocker mu(JvmtiThreadState_lock);
+ _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint();
+ _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables();
+ _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions();
+ _jvmti_can_pop_frame = JvmtiExport::can_pop_frame();
+}
+
+bool ciEnv::should_retain_local_variables() const {
+ return _jvmti_can_access_local_variables || _jvmti_can_pop_frame;
+}
+
+bool ciEnv::jvmti_state_changed() const {
+ if (!_jvmti_can_access_local_variables &&
+ JvmtiExport::can_access_local_variables()) {
+ return true;
+ }
+ if (!_jvmti_can_hotswap_or_post_breakpoint &&
+ JvmtiExport::can_hotswap_or_post_breakpoint()) {
+ return true;
+ }
+ if (!_jvmti_can_post_on_exceptions &&
+ JvmtiExport::can_post_on_exceptions()) {
+ return true;
+ }
+ if (!_jvmti_can_pop_frame &&
+ JvmtiExport::can_pop_frame()) {
+ return true;
+ }
+ return false;
+}
+
+// ------------------------------------------------------------------
+// Cache DTrace flags
+void ciEnv::cache_dtrace_flags() {
+ // Need lock?
+ _dtrace_extended_probes = ExtendedDTraceProbes;
+ if (_dtrace_extended_probes) {
+ _dtrace_monitor_probes = true;
+ _dtrace_method_probes = true;
+ _dtrace_alloc_probes = true;
+ } else {
+ _dtrace_monitor_probes = DTraceMonitorProbes;
+ _dtrace_method_probes = DTraceMethodProbes;
+ _dtrace_alloc_probes = DTraceAllocProbes;
+ }
+}
+
+// ------------------------------------------------------------------
+// helper for lazy exception creation
+ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) {
+ VM_ENTRY_MARK;
+ if (handle == NULL) {
+ // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance.
+ Klass* k = SystemDictionary::find(name, Handle(), Handle(), THREAD);
+ jobject objh = NULL;
+ if (!HAS_PENDING_EXCEPTION && k != NULL) {
+ oop obj = InstanceKlass::cast(k)->allocate_instance(THREAD);
+ if (!HAS_PENDING_EXCEPTION)
+ objh = JNIHandles::make_global(Handle(THREAD, obj));
+ }
+ if (HAS_PENDING_EXCEPTION) {
+ CLEAR_PENDING_EXCEPTION;
+ } else {
+ handle = objh;
+ }
+ }
+ oop obj = JNIHandles::resolve(handle);
+ return obj == NULL? NULL: get_object(obj)->as_instance();
+}
+
+ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() {
+ if (_ArrayIndexOutOfBoundsException_instance == NULL) {
+ _ArrayIndexOutOfBoundsException_instance
+ = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle,
+ vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
+ }
+ return _ArrayIndexOutOfBoundsException_instance;
+}
+ciInstance* ciEnv::ArrayStoreException_instance() {
+ if (_ArrayStoreException_instance == NULL) {
+ _ArrayStoreException_instance
+ = get_or_create_exception(_ArrayStoreException_handle,
+ vmSymbols::java_lang_ArrayStoreException());
+ }
+ return _ArrayStoreException_instance;
+}
+ciInstance* ciEnv::ClassCastException_instance() {
+ if (_ClassCastException_instance == NULL) {
+ _ClassCastException_instance
+ = get_or_create_exception(_ClassCastException_handle,
+ vmSymbols::java_lang_ClassCastException());
+ }
+ return _ClassCastException_instance;
+}
+
+ciInstance* ciEnv::the_null_string() {
+ if (_the_null_string == NULL) {
+ VM_ENTRY_MARK;
+ _the_null_string = get_object(Universe::the_null_string())->as_instance();
+ }
+ return _the_null_string;
+}
+
+ciInstance* ciEnv::the_min_jint_string() {
+ if (_the_min_jint_string == NULL) {
+ VM_ENTRY_MARK;
+ _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance();
+ }
+ return _the_min_jint_string;
+}
+
+// ------------------------------------------------------------------
+// ciEnv::get_method_from_handle
+ciMethod* ciEnv::get_method_from_handle(Method* method) {
+ VM_ENTRY_MARK;
+ return get_metadata(method)->as_method();
+}
+
+// ------------------------------------------------------------------
+// ciEnv::array_element_offset_in_bytes
+int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) {
+ VM_ENTRY_MARK;
+ objArrayOop a = (objArrayOop)a_h->get_oop();
+ assert(a->is_objArray(), "");
+ int length = a->length();
+ oop o = o_h->get_oop();
+ for (int i = 0; i < length; i++) {
+ if (a->obj_at(i) == o) return i;
+ }
+ return -1;
+}
+
+
+// ------------------------------------------------------------------
+// ciEnv::check_klass_accessiblity
+//
+// Note: the logic of this method should mirror the logic of
+// ConstantPool::verify_constant_pool_resolve.
+bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass,
+ Klass* resolved_klass) {
+ if (accessing_klass == NULL || !accessing_klass->is_loaded()) {
+ return true;
+ }
+ if (accessing_klass->is_obj_array_klass()) {
+ accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass();
+ }
+ if (!accessing_klass->is_instance_klass()) {
+ return true;
+ }
+
+ if (resolved_klass->is_objArray_klass()) {
+ // Find the element klass, if this is an array.
+ resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass();
+ }
+ if (resolved_klass->is_instance_klass()) {
+ return (Reflection::verify_class_access(accessing_klass->get_Klass(),
+ InstanceKlass::cast(resolved_klass),
+ true) == Reflection::ACCESS_OK);
+ }
+ return true;
+}
+
+// ------------------------------------------------------------------
+// ciEnv::get_klass_by_name_impl
+ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass,
+ const constantPoolHandle& cpool,
+ ciSymbol* name,
+ bool require_local) {
+ ASSERT_IN_VM;
+ EXCEPTION_CONTEXT;
+
+ // Now we need to check the SystemDictionary
+ Symbol* sym = name->get_symbol();
+ if (sym->byte_at(0) == 'L' &&
+ sym->byte_at(sym->utf8_length()-1) == ';') {
+ // This is a name from a signature. Strip off the trimmings.
+ // Call recursive to keep scope of strippedsym.
+ TempNewSymbol strippedsym = SymbolTable::new_symbol(sym->as_utf8()+1,
+ sym->utf8_length()-2,
+ KILL_COMPILE_ON_FATAL_(_unloaded_ciinstance_klass));
+ ciSymbol* strippedname = get_symbol(strippedsym);
+ return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local);
+ }
+
+ // Check for prior unloaded klass. The SystemDictionary's answers
+ // can vary over time but the compiler needs consistency.
+ ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name);
+ if (unloaded_klass != NULL) {
+ if (require_local) return NULL;
+ return unloaded_klass;
+ }
+
+ Handle loader(THREAD, (oop)NULL);
+ Handle domain(THREAD, (oop)NULL);
+ if (accessing_klass != NULL) {
+ loader = Handle(THREAD, accessing_klass->loader());
+ domain = Handle(THREAD, accessing_klass->protection_domain());
+ }
+
+ // setup up the proper type to return on OOM
+ ciKlass* fail_type;
+ if (sym->byte_at(0) == '[') {
+ fail_type = _unloaded_ciobjarrayklass;
+ } else {
+ fail_type = _unloaded_ciinstance_klass;
+ }
+ Klass* found_klass;
+ {
+ ttyUnlocker ttyul; // release tty lock to avoid ordering problems
+ MutexLocker ml(Compile_lock);
+ Klass* kls;
+ if (!require_local) {
+ kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader,
+ KILL_COMPILE_ON_FATAL_(fail_type));
+ } else {
+ kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain,
+ KILL_COMPILE_ON_FATAL_(fail_type));
+ }
+ found_klass = kls;
+ }
+
+ // If we fail to find an array klass, look again for its element type.
+ // The element type may be available either locally or via constraints.
+ // In either case, if we can find the element type in the system dictionary,
+ // we must build an array type around it. The CI requires array klasses
+ // to be loaded if their element klasses are loaded, except when memory
+ // is exhausted.
+ if (sym->byte_at(0) == '[' &&
+ (sym->byte_at(1) == '[' || sym->byte_at(1) == 'L')) {
+ // We have an unloaded array.
+ // Build it on the fly if the element class exists.
+ TempNewSymbol elem_sym = SymbolTable::new_symbol(sym->as_utf8()+1,
+ sym->utf8_length()-1,
+ KILL_COMPILE_ON_FATAL_(fail_type));
+
+ // Get element ciKlass recursively.
+ ciKlass* elem_klass =
+ get_klass_by_name_impl(accessing_klass,
+ cpool,
+ get_symbol(elem_sym),
+ require_local);
+ if (elem_klass != NULL && elem_klass->is_loaded()) {
+ // Now make an array for it
+ return ciObjArrayKlass::make_impl(elem_klass);
+ }
+ }
+
+ if (found_klass == NULL && !cpool.is_null() && cpool->has_preresolution()) {
+ // Look inside the constant pool for pre-resolved class entries.
+ for (int i = cpool->length() - 1; i >= 1; i--) {
+ if (cpool->tag_at(i).is_klass()) {
+ Klass* kls = cpool->resolved_klass_at(i);
+ if (kls->name() == sym) {
+ found_klass = kls;
+ break;
+ }
+ }
+ }
+ }
+
+ if (found_klass != NULL) {
+ // Found it. Build a CI handle.
+ return get_klass(found_klass);
+ }
+
+ if (require_local) return NULL;
+
+ // Not yet loaded into the VM, or not governed by loader constraints.
+ // Make a CI representative for it.
+ return get_unloaded_klass(accessing_klass, name);
+}
+
+// ------------------------------------------------------------------
+// ciEnv::get_klass_by_name
+ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass,
+ ciSymbol* klass_name,
+ bool require_local) {
+ GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass,
+ constantPoolHandle(),
+ klass_name,
+ require_local);)
+}
+
+// ------------------------------------------------------------------
+// ciEnv::get_klass_by_index_impl
+//
+// Implementation of get_klass_by_index.
+ciKlass* ciEnv::get_klass_by_index_impl(const constantPoolHandle& cpool,
+ int index,
+ bool& is_accessible,
+ ciInstanceKlass* accessor) {
+ EXCEPTION_CONTEXT;
+ Klass* klass = NULL;
+ Symbol* klass_name = NULL;
+
+ if (cpool->tag_at(index).is_symbol()) {
+ klass_name = cpool->symbol_at(index);
+ } else {
+ // Check if it's resolved if it's not a symbol constant pool entry.
+ klass = ConstantPool::klass_at_if_loaded(cpool, index);
+ // Try to look it up by name.
+ if (klass == NULL) {
+ klass_name = cpool->klass_name_at(index);
+ }
+ }
+
+ if (klass == NULL) {
+ // Not found in constant pool. Use the name to do the lookup.
+ ciKlass* k = get_klass_by_name_impl(accessor,
+ cpool,
+ get_symbol(klass_name),
+ false);
+ // Calculate accessibility the hard way.
+ if (!k->is_loaded()) {
+ is_accessible = false;
+ } else if (k->loader() != accessor->loader() &&
+ get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) {
+ // Loaded only remotely. Not linked yet.
+ is_accessible = false;
+ } else {
+ // Linked locally, and we must also check public/private, etc.
+ is_accessible = check_klass_accessibility(accessor, k->get_Klass());
+ }
+ return k;
+ }
+
+ // Check for prior unloaded klass. The SystemDictionary's answers
+ // can vary over time but the compiler needs consistency.
+ ciSymbol* name = get_symbol(klass->name());
+ ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name);
+ if (unloaded_klass != NULL) {
+ is_accessible = false;
+ return unloaded_klass;
+ }
+
+ // It is known to be accessible, since it was found in the constant pool.
+ is_accessible = true;
+ return get_klass(klass);
+}
+
+// ------------------------------------------------------------------
+// ciEnv::get_klass_by_index
+//
+// Get a klass from the constant pool.
+ciKlass* ciEnv::get_klass_by_index(const constantPoolHandle& cpool,
+ int index,
+ bool& is_accessible,
+ ciInstanceKlass* accessor) {
+ GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);)
+}
+
+// ------------------------------------------------------------------
+// ciEnv::get_constant_by_index_impl
+//
+// Implementation of get_constant_by_index().
+ciConstant ciEnv::get_constant_by_index_impl(const constantPoolHandle& cpool,
+ int pool_index, int cache_index,
+ ciInstanceKlass* accessor) {
+ bool ignore_will_link;
+ EXCEPTION_CONTEXT;
+ int index = pool_index;
+ if (cache_index >= 0) {
+ assert(index < 0, "only one kind of index at a time");
+ oop obj = cpool->resolved_references()->obj_at(cache_index);
+ if (obj != NULL) {
+ ciObject* ciobj = get_object(obj);
+ if (ciobj->is_array()) {
+ return ciConstant(T_ARRAY, ciobj);
+ } else {
+ assert(ciobj->is_instance(), "should be an instance");
+ return ciConstant(T_OBJECT, ciobj);
+ }
+ }
+ index = cpool->object_to_cp_index(cache_index);
+ }
+ constantTag tag = cpool->tag_at(index);
+ if (tag.is_int()) {
+ return ciConstant(T_INT, (jint)cpool->int_at(index));
+ } else if (tag.is_long()) {
+ return ciConstant((jlong)cpool->long_at(index));
+ } else if (tag.is_float()) {
+ return ciConstant((jfloat)cpool->float_at(index));
+ } else if (tag.is_double()) {
+ return ciConstant((jdouble)cpool->double_at(index));
+ } else if (tag.is_string()) {
+ oop string = NULL;
+ assert(cache_index >= 0, "should have a cache index");
+ if (cpool->is_pseudo_string_at(index)) {
+ string = cpool->pseudo_string_at(index, cache_index);
+ } else {
+ string = cpool->string_at(index, cache_index, THREAD);
+ if (HAS_PENDING_EXCEPTION) {
+ CLEAR_PENDING_EXCEPTION;
+ record_out_of_memory_failure();
+ return ciConstant();
+ }
+ }
+ ciObject* constant = get_object(string);
+ if (constant->is_array()) {
+ return ciConstant(T_ARRAY, constant);
+ } else {
+ assert (constant->is_instance(), "must be an instance, or not? ");
+ return ciConstant(T_OBJECT, constant);
+ }
+ } else if (tag.is_klass() || tag.is_unresolved_klass()) {
+ // 4881222: allow ldc to take a class type
+ ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor);
+ if (HAS_PENDING_EXCEPTION) {
+ CLEAR_PENDING_EXCEPTION;
+ record_out_of_memory_failure();
+ return ciConstant();
+ }
+ assert (klass->is_instance_klass() || klass->is_array_klass(),
+ "must be an instance or array klass ");
+ return ciConstant(T_OBJECT, klass->java_mirror());
+ } else if (tag.is_method_type()) {
+ // must execute Java code to link this CP entry into cache[i].f1
+ ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index));
+ ciObject* ciobj = get_unloaded_method_type_constant(signature);
+ return ciConstant(T_OBJECT, ciobj);
+ } else if (tag.is_method_handle()) {
+ // must execute Java code to link this CP entry into cache[i].f1
+ int ref_kind = cpool->method_handle_ref_kind_at(index);
+ int callee_index = cpool->method_handle_klass_index_at(index);
+ ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor);
+ ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index));
+ ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index));
+ ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind);
+ return ciConstant(T_OBJECT, ciobj);
+ } else {
+ ShouldNotReachHere();
+ return ciConstant();
+ }
+}
+
+// ------------------------------------------------------------------
+// ciEnv::get_constant_by_index
+//
+// Pull a constant out of the constant pool. How appropriate.
+//
+// Implementation note: this query is currently in no way cached.
+ciConstant ciEnv::get_constant_by_index(const constantPoolHandle& cpool,
+ int pool_index, int cache_index,
+ ciInstanceKlass* accessor) {
+ GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);)
+}
+
+// ------------------------------------------------------------------
+// ciEnv::get_field_by_index_impl
+//
+// Implementation of get_field_by_index.
+//
+// Implementation note: the results of field lookups are cached
+// in the accessor klass.
+ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor,
+ int index) {
+ ciConstantPoolCache* cache = accessor->field_cache();
+ if (cache == NULL) {
+ ciField* field = new (arena()) ciField(accessor, index);
+ return field;
+ } else {
+ ciField* field = (ciField*)cache->get(index);
+ if (field == NULL) {
+ field = new (arena()) ciField(accessor, index);
+ cache->insert(index, field);
+ }
+ return field;
+ }
+}
+
+// ------------------------------------------------------------------
+// ciEnv::get_field_by_index
+//
+// Get a field by index from a klass's constant pool.
+ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor,
+ int index) {
+ GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);)
+}
+
+// ------------------------------------------------------------------
+// ciEnv::lookup_method
+//
+// Perform an appropriate method lookup based on accessor, holder,
+// name, signature, and bytecode.
+Method* ciEnv::lookup_method(ciInstanceKlass* accessor,
+ ciKlass* holder,
+ Symbol* name,
+ Symbol* sig,
+ Bytecodes::Code bc,
+ constantTag tag) {
+ // Accessibility checks are performed in ciEnv::get_method_by_index_impl.
+ assert(check_klass_accessibility(accessor, holder->get_Klass()), "holder not accessible");
+
+ InstanceKlass* accessor_klass = accessor->get_instanceKlass();
+ Klass* holder_klass = holder->get_Klass();
+ methodHandle dest_method;
+ LinkInfo link_info(holder_klass, name, sig, accessor_klass, LinkInfo::needs_access_check, tag);
+ switch (bc) {
+ case Bytecodes::_invokestatic:
+ dest_method =
+ LinkResolver::resolve_static_call_or_null(link_info);
+ break;
+ case Bytecodes::_invokespecial:
+ dest_method =
+ LinkResolver::resolve_special_call_or_null(link_info);
+ break;
+ case Bytecodes::_invokeinterface:
+ dest_method =
+ LinkResolver::linktime_resolve_interface_method_or_null(link_info);
+ break;
+ case Bytecodes::_invokevirtual:
+ dest_method =
+ LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
+ break;
+ default: ShouldNotReachHere();
+ }
+
+ return dest_method();
+}
+
+
+// ------------------------------------------------------------------
+// ciEnv::get_method_by_index_impl
+ciMethod* ciEnv::get_method_by_index_impl(const constantPoolHandle& cpool,
+ int index, Bytecodes::Code bc,
+ ciInstanceKlass* accessor) {
+ if (bc == Bytecodes::_invokedynamic) {
+ ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index);
+ bool is_resolved = !cpce->is_f1_null();
+ // FIXME: code generation could allow for null (unlinked) call site
+ // The call site could be made patchable as follows:
+ // Load the appendix argument from the constant pool.
+ // Test the appendix argument and jump to a known deopt routine if it is null.
+ // Jump through a patchable call site, which is initially a deopt routine.
+ // Patch the call site to the nmethod entry point of the static compiled lambda form.
+ // As with other two-component call sites, both values must be independently verified.
+
+ if (is_resolved) {
+ // Get the invoker Method* from the constant pool.
+ // (The appendix argument, if any, will be noted in the method's signature.)
+ Method* adapter = cpce->f1_as_method();
+ return get_method(adapter);
+ }
+
+ // Fake a method that is equivalent to a declared method.
+ ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass());
+ ciSymbol* name = ciSymbol::invokeBasic_name();
+ ciSymbol* signature = get_symbol(cpool->signature_ref_at(index));
+ return get_unloaded_method(holder, name, signature, accessor);
+ } else {
+ const int holder_index = cpool->klass_ref_index_at(index);
+ bool holder_is_accessible;
+ ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor);
+
+ // Get the method's name and signature.
+ Symbol* name_sym = cpool->name_ref_at(index);
+ Symbol* sig_sym = cpool->signature_ref_at(index);
+
+ if (cpool->has_preresolution()
+ || ((holder == ciEnv::MethodHandle_klass() || holder == ciEnv::VarHandle_klass()) &&
+ MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) {
+ // Short-circuit lookups for JSR 292-related call sites.
+ // That is, do not rely only on name-based lookups, because they may fail
+ // if the names are not resolvable in the boot class loader (7056328).
+ switch (bc) {
+ case Bytecodes::_invokevirtual:
+ case Bytecodes::_invokeinterface:
+ case Bytecodes::_invokespecial:
+ case Bytecodes::_invokestatic:
+ {
+ Method* m = ConstantPool::method_at_if_loaded(cpool, index);
+ if (m != NULL) {
+ return get_method(m);
+ }
+ }
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (holder_is_accessible) { // Our declared holder is loaded.
+ constantTag tag = cpool->tag_ref_at(index);
+ assert(accessor->get_instanceKlass() == cpool->pool_holder(), "not the pool holder?");
+ Method* m = lookup_method(accessor, holder, name_sym, sig_sym, bc, tag);
+ if (m != NULL &&
+ (bc == Bytecodes::_invokestatic
+ ? m->method_holder()->is_not_initialized()
+ : !m->method_holder()->is_loaded())) {
+ m = NULL;
+ }
+#ifdef ASSERT
+ if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) {
+ m = NULL;
+ }
+#endif
+ if (m != NULL) {
+ // We found the method.
+ return get_method(m);
+ }
+ }
+
+ // Either the declared holder was not loaded, or the method could
+ // not be found. Create a dummy ciMethod to represent the failed
+ // lookup.
+ ciSymbol* name = get_symbol(name_sym);
+ ciSymbol* signature = get_symbol(sig_sym);
+ return get_unloaded_method(holder, name, signature, accessor);
+ }
+}
+
+
+// ------------------------------------------------------------------
+// ciEnv::get_instance_klass_for_declared_method_holder
+ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) {
+ // For the case of <array>.clone(), the method holder can be a ciArrayKlass
+ // instead of a ciInstanceKlass. For that case simply pretend that the
+ // declared holder is Object.clone since that's where the call will bottom out.
+ // A more correct fix would trickle out through many interfaces in CI,
+ // requiring ciInstanceKlass* to become ciKlass* and many more places would
+ // require checks to make sure the expected type was found. Given that this
+ // only occurs for clone() the more extensive fix seems like overkill so
+ // instead we simply smear the array type into Object.
+ guarantee(method_holder != NULL, "no method holder");
+ if (method_holder->is_instance_klass()) {
+ return method_holder->as_instance_klass();
+ } else if (method_holder->is_array_klass()) {
+ return current()->Object_klass();
+ } else {
+ ShouldNotReachHere();
+ }
+ return NULL;
+}
+
+
+// ------------------------------------------------------------------
+// ciEnv::get_method_by_index
+ciMethod* ciEnv::get_method_by_index(const constantPoolHandle& cpool,
+ int index, Bytecodes::Code bc,
+ ciInstanceKlass* accessor) {
+ GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);)
+}
+
+
+// ------------------------------------------------------------------
+// ciEnv::name_buffer
+char *ciEnv::name_buffer(int req_len) {
+ if (_name_buffer_len < req_len) {
+ if (_name_buffer == NULL) {
+ _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len);
+ _name_buffer_len = req_len;
+ } else {
+ _name_buffer =
+ (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len);
+ _name_buffer_len = req_len;
+ }
+ }
+ return _name_buffer;
+}
+
+// ------------------------------------------------------------------
+// ciEnv::is_in_vm
+bool ciEnv::is_in_vm() {
+ return JavaThread::current()->thread_state() == _thread_in_vm;
+}
+
+bool ciEnv::system_dictionary_modification_counter_changed() {
+ return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications();
+}
+
+// ------------------------------------------------------------------
+// ciEnv::validate_compile_task_dependencies
+//
+// Check for changes during compilation (e.g. class loads, evolution,
+// breakpoints, call site invalidation).
+void ciEnv::validate_compile_task_dependencies(ciMethod* target) {
+ if (failing()) return; // no need for further checks
+
+ // First, check non-klass dependencies as we might return early and
+ // not check klass dependencies if the system dictionary
+ // modification counter hasn't changed (see below).
+ for (Dependencies::DepStream deps(dependencies()); deps.next(); ) {
+ if (deps.is_klass_type()) continue; // skip klass dependencies
+ Klass* witness = deps.check_dependency();
+ if (witness != NULL) {
+ if (deps.type() == Dependencies::call_site_target_value) {
+ _inc_decompile_count_on_failure = false;
+ record_failure("call site target change");
+ } else {
+ record_failure("invalid non-klass dependency");
+ }
+ return;
+ }
+ }
+
+ // Klass dependencies must be checked when the system dictionary
+ // changes. If logging is enabled all violated dependences will be
+ // recorded in the log. In debug mode check dependencies even if
+ // the system dictionary hasn't changed to verify that no invalid
+ // dependencies were inserted. Any violated dependences in this
+ // case are dumped to the tty.
+ bool counter_changed = system_dictionary_modification_counter_changed();
+
+ bool verify_deps = trueInDebug;
+ if (!counter_changed && !verify_deps) return;
+
+ int klass_violations = 0;
+ for (Dependencies::DepStream deps(dependencies()); deps.next(); ) {
+ if (!deps.is_klass_type()) continue; // skip non-klass dependencies
+ Klass* witness = deps.check_dependency();
+ if (witness != NULL) {
+ klass_violations++;
+ if (!counter_changed) {
+ // Dependence failed but counter didn't change. Log a message
+ // describing what failed and allow the assert at the end to
+ // trigger.
+ deps.print_dependency(witness);
+ } else if (xtty == NULL) {
+ // If we're not logging then a single violation is sufficient,
+ // otherwise we want to log all the dependences which were
+ // violated.
+ break;
+ }
+ }
+ }
+
+ if (klass_violations != 0) {
+#ifdef ASSERT
+ if (!counter_changed && !PrintCompilation) {
+ // Print out the compile task that failed
+ _task->print_tty();
+ }
+#endif
+ assert(counter_changed, "failed dependencies, but counter didn't change");
+ record_failure("concurrent class loading");
+ }
+}
+
+// ------------------------------------------------------------------
+// ciEnv::register_method
+void ciEnv::register_method(ciMethod* target,
+ int entry_bci,
+ CodeOffsets* offsets,
+ int orig_pc_offset,
+ CodeBuffer* code_buffer,
+ int frame_words,
+ OopMapSet* oop_map_set,
+ ExceptionHandlerTable* handler_table,
+ ImplicitExceptionTable* inc_table,
+ AbstractCompiler* compiler,
+ bool has_unsafe_access,
+ bool has_wide_vectors,
+ RTMState rtm_state) {
+ VM_ENTRY_MARK;
+ nmethod* nm = NULL;
+ {
+ // To prevent compile queue updates.
+ MutexLocker locker(MethodCompileQueue_lock, THREAD);
+
+ // Prevent SystemDictionary::add_to_hierarchy from running
+ // and invalidating our dependencies until we install this method.
+ // No safepoints are allowed. Otherwise, class redefinition can occur in between.
+ MutexLocker ml(Compile_lock);
+ NoSafepointVerifier nsv;
+
+ // Change in Jvmti state may invalidate compilation.
+ if (!failing() && jvmti_state_changed()) {
+ record_failure("Jvmti state change invalidated dependencies");
+ }
+
+ // Change in DTrace flags may invalidate compilation.
+ if (!failing() &&
+ ( (!dtrace_extended_probes() && ExtendedDTraceProbes) ||
+ (!dtrace_method_probes() && DTraceMethodProbes) ||
+ (!dtrace_alloc_probes() && DTraceAllocProbes) )) {
+ record_failure("DTrace flags change invalidated dependencies");
+ }
+
+ if (!failing()) {
+ if (log() != NULL) {
+ // Log the dependencies which this compilation declares.
+ dependencies()->log_all_dependencies();
+ }
+
+ // Encode the dependencies now, so we can check them right away.
+ dependencies()->encode_content_bytes();
+
+ // Check for {class loads, evolution, breakpoints, ...} during compilation
+ validate_compile_task_dependencies(target);
+ }
+
+ methodHandle method(THREAD, target->get_Method());
+
+#if INCLUDE_RTM_OPT
+ if (!failing() && (rtm_state != NoRTM) &&
+ (method()->method_data() != NULL) &&
+ (method()->method_data()->rtm_state() != rtm_state)) {
+ // Preemptive decompile if rtm state was changed.
+ record_failure("RTM state change invalidated rtm code");
+ }
+#endif
+
+ if (failing()) {
+ // While not a true deoptimization, it is a preemptive decompile.
+ MethodData* mdo = method()->method_data();
+ if (mdo != NULL && _inc_decompile_count_on_failure) {
+ mdo->inc_decompile_count();
+ }
+
+ // All buffers in the CodeBuffer are allocated in the CodeCache.
+ // If the code buffer is created on each compile attempt
+ // as in C2, then it must be freed.
+ code_buffer->free_blob();
+ return;
+ }
+
+ assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry");
+ assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry");
+
+ nm = nmethod::new_nmethod(method,
+ compile_id(),
+ entry_bci,
+ offsets,
+ orig_pc_offset,
+ debug_info(), dependencies(), code_buffer,
+ frame_words, oop_map_set,
+ handler_table, inc_table,
+ compiler, task()->comp_level());
+
+ // Free codeBlobs
+ code_buffer->free_blob();
+
+ if (nm != NULL) {
+ nm->set_has_unsafe_access(has_unsafe_access);
+ nm->set_has_wide_vectors(has_wide_vectors);
+#if INCLUDE_RTM_OPT
+ nm->set_rtm_state(rtm_state);
+#endif
+
+ // Record successful registration.
+ // (Put nm into the task handle *before* publishing to the Java heap.)
+ if (task() != NULL) {
+ task()->set_code(nm);
+ }
+
+ if (entry_bci == InvocationEntryBci) {
+ if (TieredCompilation) {
+ // If there is an old version we're done with it
+ CompiledMethod* old = method->code();
+ if (TraceMethodReplacement && old != NULL) {
+ ResourceMark rm;
+ char *method_name = method->name_and_sig_as_C_string();
+ tty->print_cr("Replacing method %s", method_name);
+ }
+ if (old != NULL) {
+ old->make_not_used();
+ }
+ }
+ if (TraceNMethodInstalls) {
+ ResourceMark rm;
+ char *method_name = method->name_and_sig_as_C_string();
+ ttyLocker ttyl;
+ tty->print_cr("Installing method (%d) %s ",
+ task()->comp_level(),
+ method_name);
+ }
+ // Allow the code to be executed
+ method->set_code(method, nm);
+ } else {
+ if (TraceNMethodInstalls) {
+ ResourceMark rm;
+ char *method_name = method->name_and_sig_as_C_string();
+ ttyLocker ttyl;
+ tty->print_cr("Installing osr method (%d) %s @ %d",
+ task()->comp_level(),
+ method_name,
+ entry_bci);
+ }
+ method->method_holder()->add_osr_nmethod(nm);
+ }
+ }
+ } // safepoints are allowed again
+
+ if (nm != NULL) {
+ // JVMTI -- compiled method notification (must be done outside lock)
+ nm->post_compiled_method_load_event();
+ } else {
+ // The CodeCache is full.
+ record_failure("code cache is full");
+ }
+}
+
+
+// ------------------------------------------------------------------
+// ciEnv::find_system_klass
+ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) {
+ VM_ENTRY_MARK;
+ return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false);
+}
+
+// ------------------------------------------------------------------
+// ciEnv::comp_level
+int ciEnv::comp_level() {
+ if (task() == NULL) return CompLevel_highest_tier;
+ return task()->comp_level();
+}
+
+// ------------------------------------------------------------------
+// ciEnv::compile_id
+uint ciEnv::compile_id() {
+ if (task() == NULL) return 0;
+ return task()->compile_id();
+}
+
+// ------------------------------------------------------------------
+// ciEnv::notice_inlined_method()
+void ciEnv::notice_inlined_method(ciMethod* method) {
+ _num_inlined_bytecodes += method->code_size_for_inlining();
+}
+
+// ------------------------------------------------------------------
+// ciEnv::num_inlined_bytecodes()
+int ciEnv::num_inlined_bytecodes() const {
+ return _num_inlined_bytecodes;
+}
+
+// ------------------------------------------------------------------
+// ciEnv::record_failure()
+void ciEnv::record_failure(const char* reason) {
+ if (_failure_reason == NULL) {
+ // Record the first failure reason.
+ _failure_reason = reason;
+ }
+}
+
+void ciEnv::report_failure(const char* reason) {
+ // Create and fire JFR event
+ EventCompilationFailure event;
+ if (event.should_commit()) {
+ event.set_compileId(compile_id());
+ event.set_failureMessage(reason);
+ event.commit();
+ }
+}
+
+// ------------------------------------------------------------------
+// ciEnv::record_method_not_compilable()
+void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) {
+ int new_compilable =
+ all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ;
+
+ // Only note transitions to a worse state
+ if (new_compilable > _compilable) {
+ if (log() != NULL) {
+ if (all_tiers) {
+ log()->elem("method_not_compilable");
+ } else {
+ log()->elem("method_not_compilable_at_tier level='%d'",
+ current()->task()->comp_level());
+ }
+ }
+ _compilable = new_compilable;
+
+ // Reset failure reason; this one is more important.
+ _failure_reason = NULL;
+ record_failure(reason);
+ }
+}
+
+// ------------------------------------------------------------------
+// ciEnv::record_out_of_memory_failure()
+void ciEnv::record_out_of_memory_failure() {
+ // If memory is low, we stop compiling methods.
+ record_method_not_compilable("out of memory");
+}
+
+ciInstance* ciEnv::unloaded_ciinstance() {
+ GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();)
+}
+
+// ------------------------------------------------------------------
+// ciEnv::dump_replay_data*
+
+// Don't change thread state and acquire any locks.
+// Safe to call from VM error reporter.
+
+void ciEnv::dump_compile_data(outputStream* out) {
+ CompileTask* task = this->task();
+ Method* method = task->method();
+ int entry_bci = task->osr_bci();
+ int comp_level = task->comp_level();
+ out->print("compile %s %s %s %d %d",
+ method->klass_name()->as_quoted_ascii(),
+ method->name()->as_quoted_ascii(),
+ method->signature()->as_quoted_ascii(),
+ entry_bci, comp_level);
+ if (compiler_data() != NULL) {
+ if (is_c2_compile(comp_level)) { // C2 or Shark
+#ifdef COMPILER2
+ // Dump C2 inlining data.
+ ((Compile*)compiler_data())->dump_inline_data(out);
+#endif
+ } else if (is_c1_compile(comp_level)) { // C1
+#ifdef COMPILER1
+ // Dump C1 inlining data.
+ ((Compilation*)compiler_data())->dump_inline_data(out);
+#endif
+ }
+ }
+ out->cr();
+}
+
+void ciEnv::dump_replay_data_unsafe(outputStream* out) {
+ ResourceMark rm;
+#if INCLUDE_JVMTI
+ out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables);
+ out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint);
+ out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions);
+#endif // INCLUDE_JVMTI
+
+ GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata();
+ out->print_cr("# %d ciObject found", objects->length());
+ for (int i = 0; i < objects->length(); i++) {
+ objects->at(i)->dump_replay_data(out);
+ }
+ dump_compile_data(out);
+ out->flush();
+}
+
+void ciEnv::dump_replay_data(outputStream* out) {
+ GUARDED_VM_ENTRY(
+ MutexLocker ml(Compile_lock);
+ dump_replay_data_unsafe(out);
+ )
+}
+
+void ciEnv::dump_replay_data(int compile_id) {
+ static char buffer[O_BUFLEN];
+ int ret = jio_snprintf(buffer, O_BUFLEN, "replay_pid%p_compid%d.log", os::current_process_id(), compile_id);
+ if (ret > 0) {
+ int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
+ if (fd != -1) {
+ FILE* replay_data_file = os::open(fd, "w");
+ if (replay_data_file != NULL) {
+ fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
+ dump_replay_data(&replay_data_stream);
+ tty->print_cr("# Compiler replay data is saved as: %s", buffer);
+ } else {
+ tty->print_cr("# Can't open file to dump replay data.");
+ }
+ }
+ }
+}
+
+void ciEnv::dump_inline_data(int compile_id) {
+ static char buffer[O_BUFLEN];
+ int ret = jio_snprintf(buffer, O_BUFLEN, "inline_pid%p_compid%d.log", os::current_process_id(), compile_id);
+ if (ret > 0) {
+ int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
+ if (fd != -1) {
+ FILE* inline_data_file = os::open(fd, "w");
+ if (inline_data_file != NULL) {
+ fileStream replay_data_stream(inline_data_file, /*need_close=*/true);
+ GUARDED_VM_ENTRY(
+ MutexLocker ml(Compile_lock);
+ dump_compile_data(&replay_data_stream);
+ )
+ replay_data_stream.flush();
+ tty->print("# Compiler inline data is saved as: ");
+ tty->print_cr("%s", buffer);
+ } else {
+ tty->print_cr("# Can't open file to dump inline data.");
+ }
+ }
+ }
+}