1184 lines
43 KiB
C++
1184 lines
43 KiB
C++
/*
|
|
* Copyright (c) 1999, 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.
|
|
*
|
|
* 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/ciInstanceKlassKlass.hpp"
|
|
#include "ci/ciMethod.hpp"
|
|
#include "ci/ciNullObject.hpp"
|
|
#include "ci/ciObjArrayKlassKlass.hpp"
|
|
#include "ci/ciTypeArrayKlassKlass.hpp"
|
|
#include "ci/ciUtilities.hpp"
|
|
#include "classfile/systemDictionary.hpp"
|
|
#include "classfile/vmSymbols.hpp"
|
|
#include "code/scopeDesc.hpp"
|
|
#include "compiler/compileBroker.hpp"
|
|
#include "compiler/compileLog.hpp"
|
|
#include "compiler/compilerOracle.hpp"
|
|
#include "gc_interface/collectedHeap.inline.hpp"
|
|
#include "interpreter/linkResolver.hpp"
|
|
#include "memory/allocation.inline.hpp"
|
|
#include "memory/oopFactory.hpp"
|
|
#include "memory/universe.inline.hpp"
|
|
#include "oops/methodDataOop.hpp"
|
|
#include "oops/objArrayKlass.hpp"
|
|
#include "oops/oop.inline.hpp"
|
|
#include "oops/oop.inline2.hpp"
|
|
#include "prims/jvmtiExport.hpp"
|
|
#include "prims/methodHandleWalk.hpp"
|
|
#include "runtime/init.hpp"
|
|
#include "runtime/reflection.hpp"
|
|
#include "runtime/sharedRuntime.hpp"
|
|
#include "utilities/dtrace.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;
|
|
ciMethodKlass* ciEnv::_method_klass_instance;
|
|
ciKlassKlass* ciEnv::_klass_klass_instance;
|
|
ciInstanceKlassKlass* ciEnv::_instance_klass_klass_instance;
|
|
ciTypeArrayKlassKlass* ciEnv::_type_array_klass_klass_instance;
|
|
ciObjArrayKlassKlass* ciEnv::_obj_array_klass_klass_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) {
|
|
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;
|
|
_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;
|
|
}
|
|
|
|
ciEnv::ciEnv(Arena* arena) {
|
|
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;
|
|
_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");
|
|
|
|
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;
|
|
}
|
|
|
|
ciEnv::~ciEnv() {
|
|
CompilerThread* current_thread = CompilerThread::current();
|
|
_factory->remove_symbols();
|
|
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();
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// 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.
|
|
klassOop k = SystemDictionary::find(name, Handle(), Handle(), THREAD);
|
|
jobject objh = NULL;
|
|
if (!HAS_PENDING_EXCEPTION && k != NULL) {
|
|
oop obj = instanceKlass::cast(k)->allocate_permanent_instance(THREAD);
|
|
if (!HAS_PENDING_EXCEPTION)
|
|
objh = JNIHandles::make_global(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();
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::ArrayIndexOutOfBoundsException_instance, etc.
|
|
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(jobject method) {
|
|
VM_ENTRY_MARK;
|
|
return get_object(JNIHandles::resolve(method))->as_method();
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::make_array
|
|
ciArray* ciEnv::make_system_array(GrowableArray<ciObject*>* objects) {
|
|
VM_ENTRY_MARK;
|
|
int length = objects->length();
|
|
objArrayOop a = oopFactory::new_system_objArray(length, THREAD);
|
|
if (HAS_PENDING_EXCEPTION) {
|
|
CLEAR_PENDING_EXCEPTION;
|
|
record_out_of_memory_failure();
|
|
return NULL;
|
|
}
|
|
for (int i = 0; i < length; i++) {
|
|
a->obj_at_put(i, objects->at(i)->get_oop());
|
|
}
|
|
assert(a->is_perm(), "");
|
|
return get_object(a)->as_array();
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
// 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
|
|
// constantPoolOopDesc::verify_constant_pool_resolve.
|
|
bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass,
|
|
klassOop resolved_klass) {
|
|
if (accessing_klass == NULL || !accessing_klass->is_loaded()) {
|
|
return true;
|
|
}
|
|
if (accessing_klass->is_obj_array()) {
|
|
accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass();
|
|
}
|
|
if (!accessing_klass->is_instance_klass()) {
|
|
return true;
|
|
}
|
|
|
|
if (resolved_klass->klass_part()->oop_is_objArray()) {
|
|
// Find the element klass, if this is an array.
|
|
resolved_klass = objArrayKlass::cast(resolved_klass)->bottom_klass();
|
|
}
|
|
if (resolved_klass->klass_part()->oop_is_instance()) {
|
|
return Reflection::verify_class_access(accessing_klass->get_klassOop(),
|
|
resolved_klass,
|
|
true);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::get_klass_by_name_impl
|
|
ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass,
|
|
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;
|
|
}
|
|
KlassHandle found_klass;
|
|
{
|
|
ttyUnlocker ttyul; // release tty lock to avoid ordering problems
|
|
MutexLocker ml(Compile_lock);
|
|
klassOop 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 = KlassHandle(THREAD, 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()) {
|
|
klassOop kls = cpool->resolved_klass_at(i);
|
|
if (Klass::cast(kls)->name() == sym) {
|
|
found_klass = KlassHandle(THREAD, kls);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (found_klass() != NULL) {
|
|
// Found it. Build a CI handle.
|
|
return get_object(found_klass())->as_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(constantPoolHandle cpool,
|
|
int index,
|
|
bool& is_accessible,
|
|
ciInstanceKlass* accessor) {
|
|
EXCEPTION_CONTEXT;
|
|
KlassHandle klass(THREAD, constantPoolOopDesc::klass_at_if_loaded(cpool, index));
|
|
Symbol* klass_name = NULL;
|
|
if (klass.is_null()) {
|
|
// The klass has not been inserted into the constant pool.
|
|
// Try to look it up by name.
|
|
{
|
|
// We have to lock the cpool to keep the oop from being resolved
|
|
// while we are accessing it.
|
|
ObjectLocker ol(cpool, THREAD);
|
|
|
|
constantTag tag = cpool->tag_at(index);
|
|
if (tag.is_klass()) {
|
|
// The klass has been inserted into the constant pool
|
|
// very recently.
|
|
klass = KlassHandle(THREAD, cpool->resolved_klass_at(index));
|
|
} else if (tag.is_symbol()) {
|
|
klass_name = cpool->symbol_at(index);
|
|
} else {
|
|
assert(cpool->tag_at(index).is_unresolved_klass(), "wrong tag");
|
|
klass_name = cpool->unresolved_klass_at(index);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (klass.is_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_klassOop());
|
|
}
|
|
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()->klass_part()->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_object(klass())->as_klass();
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::get_klass_by_index
|
|
//
|
|
// Get a klass from the constant pool.
|
|
ciKlass* ciEnv::get_klass_by_index(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(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");
|
|
ConstantPoolCacheEntry* cpc_entry = cpool->cache()->entry_at(cache_index);
|
|
index = cpc_entry->constant_pool_index();
|
|
oop obj = cpc_entry->f1();
|
|
if (obj != NULL) {
|
|
assert(obj->is_instance() || obj->is_array(), "must be a Java reference");
|
|
ciObject* ciobj = get_object(obj);
|
|
return ciConstant(T_OBJECT, ciobj);
|
|
}
|
|
}
|
|
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() || tag.is_unresolved_string()) {
|
|
oop string = NULL;
|
|
if (cpool->is_pseudo_string_at(index)) {
|
|
string = cpool->pseudo_string_at(index);
|
|
} else {
|
|
string = cpool->string_at(index, THREAD);
|
|
if (HAS_PENDING_EXCEPTION) {
|
|
CLEAR_PENDING_EXCEPTION;
|
|
record_out_of_memory_failure();
|
|
return ciConstant();
|
|
}
|
|
}
|
|
ciObject* constant = get_object(string);
|
|
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_object()) {
|
|
oop obj = cpool->object_at(index);
|
|
assert(obj->is_instance() || obj->is_array(), "must be a Java reference");
|
|
ciObject* ciobj = get_object(obj);
|
|
return ciConstant(T_OBJECT, ciobj);
|
|
} 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(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.
|
|
methodOop ciEnv::lookup_method(instanceKlass* accessor,
|
|
instanceKlass* holder,
|
|
Symbol* name,
|
|
Symbol* sig,
|
|
Bytecodes::Code bc) {
|
|
EXCEPTION_CONTEXT;
|
|
KlassHandle h_accessor(THREAD, accessor);
|
|
KlassHandle h_holder(THREAD, holder);
|
|
LinkResolver::check_klass_accessability(h_accessor, h_holder, KILL_COMPILE_ON_FATAL_(NULL));
|
|
methodHandle dest_method;
|
|
switch (bc) {
|
|
case Bytecodes::_invokestatic:
|
|
dest_method =
|
|
LinkResolver::resolve_static_call_or_null(h_holder, name, sig, h_accessor);
|
|
break;
|
|
case Bytecodes::_invokespecial:
|
|
dest_method =
|
|
LinkResolver::resolve_special_call_or_null(h_holder, name, sig, h_accessor);
|
|
break;
|
|
case Bytecodes::_invokeinterface:
|
|
dest_method =
|
|
LinkResolver::linktime_resolve_interface_method_or_null(h_holder, name, sig,
|
|
h_accessor, true);
|
|
break;
|
|
case Bytecodes::_invokevirtual:
|
|
dest_method =
|
|
LinkResolver::linktime_resolve_virtual_method_or_null(h_holder, name, sig,
|
|
h_accessor, true);
|
|
break;
|
|
default: ShouldNotReachHere();
|
|
}
|
|
|
|
return dest_method();
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::get_method_by_index_impl
|
|
ciMethod* ciEnv::get_method_by_index_impl(constantPoolHandle cpool,
|
|
int index, Bytecodes::Code bc,
|
|
ciInstanceKlass* accessor) {
|
|
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);
|
|
ciInstanceKlass* declared_holder = get_instance_klass_for_declared_method_holder(holder);
|
|
|
|
// 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() &&
|
|
methodOopDesc::is_method_handle_invoke_name(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:
|
|
{
|
|
methodOop m = constantPoolOopDesc::method_at_if_loaded(cpool, index, bc);
|
|
if (m != NULL) {
|
|
return get_object(m)->as_method();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (holder_is_accessible) { // Our declared holder is loaded.
|
|
instanceKlass* lookup = declared_holder->get_instanceKlass();
|
|
methodOop m = lookup_method(accessor->get_instanceKlass(), lookup, name_sym, sig_sym, bc);
|
|
if (m != NULL &&
|
|
(bc == Bytecodes::_invokestatic
|
|
? instanceKlass::cast(m->method_holder())->is_not_initialized()
|
|
: !instanceKlass::cast(m->method_holder())->is_loaded())) {
|
|
m = NULL;
|
|
}
|
|
if (m != NULL) {
|
|
// We found the method.
|
|
return get_object(m)->as_method();
|
|
}
|
|
}
|
|
|
|
// 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(declared_holder, name, signature, accessor);
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::get_fake_invokedynamic_method_impl
|
|
ciMethod* ciEnv::get_fake_invokedynamic_method_impl(constantPoolHandle cpool,
|
|
int index, Bytecodes::Code bc,
|
|
ciInstanceKlass* accessor) {
|
|
// Compare the following logic with InterpreterRuntime::resolve_invokedynamic.
|
|
assert(bc == Bytecodes::_invokedynamic, "must be invokedynamic");
|
|
|
|
bool is_resolved = cpool->cache()->main_entry_at(index)->is_resolved(bc);
|
|
if (is_resolved && cpool->cache()->secondary_entry_at(index)->is_f1_null())
|
|
// FIXME: code generation could allow for null (unlinked) call site
|
|
is_resolved = false;
|
|
|
|
// Call site might not be resolved yet. We could create a real invoker method from the
|
|
// compiler, but it is simpler to stop the code path here with an unlinked method.
|
|
if (!is_resolved) {
|
|
ciInstanceKlass* holder = get_object(SystemDictionary::MethodHandle_klass())->as_instance_klass();
|
|
ciSymbol* name = ciSymbol::invokeExact_name();
|
|
ciSymbol* signature = get_symbol(cpool->signature_ref_at(index));
|
|
return get_unloaded_method(holder, name, signature, accessor);
|
|
}
|
|
|
|
// Get the invoker methodOop from the constant pool.
|
|
oop f1_value = cpool->cache()->main_entry_at(index)->f1();
|
|
methodOop signature_invoker = (methodOop) f1_value;
|
|
assert(signature_invoker != NULL && signature_invoker->is_method() && signature_invoker->is_method_handle_invoke(),
|
|
"correct result from LinkResolver::resolve_invokedynamic");
|
|
|
|
return get_object(signature_invoker)->as_method();
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
// 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.
|
|
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(constantPoolHandle cpool,
|
|
int index, Bytecodes::Code bc,
|
|
ciInstanceKlass* accessor) {
|
|
if (bc == Bytecodes::_invokedynamic) {
|
|
GUARDED_VM_ENTRY(return get_fake_invokedynamic_method_impl(cpool, index, bc, accessor);)
|
|
} else {
|
|
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
|
|
klassOop witness = deps.check_dependency();
|
|
if (witness != NULL) {
|
|
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
|
|
klassOop 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_line();
|
|
}
|
|
#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,
|
|
int comp_level,
|
|
bool has_unsafe_access) {
|
|
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.
|
|
MutexLocker ml(Compile_lock);
|
|
|
|
// Change in Jvmti state may invalidate compilation.
|
|
if (!failing() &&
|
|
( (!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()) )) {
|
|
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_methodOop());
|
|
|
|
if (failing()) {
|
|
// While not a true deoptimization, it is a preemptive decompile.
|
|
methodDataOop mdo = method()->method_data();
|
|
if (mdo != NULL) {
|
|
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, comp_level);
|
|
|
|
// Free codeBlobs
|
|
code_buffer->free_blob();
|
|
|
|
// stress test 6243940 by immediately making the method
|
|
// non-entrant behind the system's back. This has serious
|
|
// side effects on the code cache and is not meant for
|
|
// general stress testing
|
|
if (nm != NULL && StressNonEntrant) {
|
|
MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag);
|
|
NativeJump::patch_verified_entry(nm->entry_point(), nm->verified_entry_point(),
|
|
SharedRuntime::get_handle_wrong_method_stub());
|
|
}
|
|
|
|
if (nm == NULL) {
|
|
// The CodeCache is full. Print out warning and disable compilation.
|
|
record_failure("code cache is full");
|
|
{
|
|
MutexUnlocker ml(Compile_lock);
|
|
MutexUnlocker locker(MethodCompileQueue_lock);
|
|
CompileBroker::handle_full_code_cache();
|
|
}
|
|
} else {
|
|
nm->set_has_unsafe_access(has_unsafe_access);
|
|
|
|
// 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
|
|
nmethod* 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_entrant();
|
|
}
|
|
}
|
|
if (TraceNMethodInstalls ) {
|
|
ResourceMark rm;
|
|
char *method_name = method->name_and_sig_as_C_string();
|
|
ttyLocker ttyl;
|
|
tty->print_cr("Installing method (%d) %s ",
|
|
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",
|
|
comp_level,
|
|
method_name,
|
|
entry_bci);
|
|
}
|
|
instanceKlass::cast(method->method_holder())->add_osr_nmethod(nm);
|
|
|
|
}
|
|
}
|
|
}
|
|
// JVMTI -- compiled method notification (must be done outside lock)
|
|
if (nm != NULL) {
|
|
nm->post_compiled_method_load_event();
|
|
}
|
|
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
// 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();
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// 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 (log() != NULL) {
|
|
log()->elem("failure reason='%s'", reason);
|
|
}
|
|
if (_failure_reason == NULL) {
|
|
// Record the first failure reason.
|
|
_failure_reason = reason;
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// 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");
|
|
}
|
|
}
|
|
_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");
|
|
}
|