/*
* Copyright (c) 2016, 2019, 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.hpp"
#include "ci/ciUtilities.inline.hpp"
#include "classfile/javaAssertions.hpp"
#include "gc/shared/cardTable.hpp"
#include "gc/shared/cardTableBarrierSet.hpp"
#include "gc/shared/gcConfig.hpp"
#include "gc/g1/heapRegion.hpp"
#include "interpreter/abstractInterpreter.hpp"
#include "jvmci/compilerRuntime.hpp"
#include "jvmci/jvmciRuntime.hpp"
#include "logging/log.hpp"
#include "memory/allocation.inline.hpp"
#include "memory/universe.hpp"
#include "oops/compressedOops.hpp"
#include "oops/klass.inline.hpp"
#include "oops/method.inline.hpp"
#include "runtime/atomic.hpp"
#include "runtime/deoptimization.hpp"
#include "runtime/handles.inline.hpp"
#include "runtime/os.hpp"
#include "runtime/safepointVerifiers.hpp"
#include "runtime/sharedRuntime.hpp"
#include "runtime/vmOperations.hpp"
#include "utilities/sizes.hpp"
bool AOTLib::_narrow_oop_shift_initialized = false;
int AOTLib::_narrow_oop_shift = 0;
int AOTLib::_narrow_klass_shift = 0;
address AOTLib::load_symbol(const char *name) {
address symbol = (address) os::dll_lookup(_dl_handle, name);
if (symbol == NULL) {
tty->print_cr("Shared file %s error: missing %s", _name, name);
vm_exit(1);
}
return symbol;
}
Klass* AOTCodeHeap::get_klass_from_got(const char* klass_name, int klass_len, const Method* method) {
AOTKlassData* klass_data = (AOTKlassData*)_lib->load_symbol(klass_name);
Klass* k = (Klass*)_klasses_got[klass_data->_got_index];
if (k == NULL) {
Thread* thread = Thread::current();
k = lookup_klass(klass_name, klass_len, method, thread);
// Note, exceptions are cleared.
if (k == NULL) {
fatal("Shared file %s error: klass %s should be resolved already", _lib->name(), klass_name);
vm_exit(1);
}
// Patch now to avoid extra runtime lookup
_klasses_got[klass_data->_got_index] = k;
if (k->is_instance_klass()) {
InstanceKlass* ik = InstanceKlass::cast(k);
if (ik->is_initialized()) {
_klasses_got[klass_data->_got_index - 1] = ik;
}
}
}
return k;
}
Klass* AOTCodeHeap::lookup_klass(const char* name, int len, const Method* method, Thread* thread) {
ResourceMark rm(thread);
assert(method != NULL, "incorrect call parameter");
methodHandle caller(thread, (Method*)method);
// Use class loader of aot method.
Handle loader(thread, caller->method_holder()->class_loader());
Handle protection_domain(thread, caller->method_holder()->protection_domain());
// Ignore wrapping L and ;
if (name[0] == JVM_SIGNATURE_CLASS) {
assert(len > 2, "small name %s", name);
name++;
len -= 2;
}
TempNewSymbol sym = SymbolTable::probe(name, len);
if (sym == NULL) {
log_debug(aot, class, resolve)("Probe failed for AOT class %s", name);
return NULL;
}
Klass* k = SystemDictionary::find_instance_or_array_klass(sym, loader, protection_domain, thread);
assert(!thread->has_pending_exception(), "should not throw");
if (k != NULL) {
log_info(aot, class, resolve)("%s %s (lookup)", caller->method_holder()->external_name(), k->external_name());
}
return k;
}
void AOTLib::handle_config_error(const char* format, ...) {
if (PrintAOT) {
va_list ap;
va_start(ap, format);
tty->vprint_cr(format, ap);
va_end(ap);
}
if (UseAOTStrictLoading) {
vm_exit(1);
}
_valid = false;
}
void AOTLib::verify_flag(bool aot_flag, bool flag, const char* name) {
if (_valid && aot_flag != flag) {
handle_config_error("Shared file %s error: %s has different value '%s' from current '%s'", _name, name , (aot_flag ? "true" : "false"), (flag ? "true" : "false"));
}
}
void AOTLib::verify_flag(int aot_flag, int flag, const char* name) {
if (_valid && aot_flag != flag) {
handle_config_error("Shared file %s error: %s has different value '%d' from current '%d'", _name, name , aot_flag, flag);
}
}
void AOTLib::verify_config() {
GrowableArray<AOTLib*>* libraries = AOTLoader::libraries();
for (GrowableArrayIterator<AOTLib*> lib = libraries->begin(); lib != libraries->end(); ++lib) {
if ((*lib)->_config == _config) {
handle_config_error("AOT library %s already loaded.", (*lib)->_name);
return;
}
}
if (_header->_version != AOTHeader::AOT_SHARED_VERSION) {
handle_config_error("Invalid version of the shared file %s. Expected %d but was %d", _name, _header->_version, AOTHeader::AOT_SHARED_VERSION);
return;
}
const char* aot_jvm_version = (const char*)_header + _header->_jvm_version_offset + 2;
if (strcmp(aot_jvm_version, VM_Version::jre_release_version()) != 0) {
handle_config_error("JVM version '%s' recorded in the shared file %s does not match current version '%s'", aot_jvm_version, _name, VM_Version::jre_release_version());
return;
}
// Debug VM has different layout of runtime and metadata structures
#ifdef ASSERT
verify_flag(_config->_debug_VM, true, "Debug VM version");
#else
verify_flag(!(_config->_debug_VM), true, "Product VM version");
#endif
// Check configuration size
verify_flag(_config->_config_size, AOTConfiguration::CONFIG_SIZE, "AOT configuration size");
// Check GC
CollectedHeap::Name gc = (CollectedHeap::Name)_config->_gc;
if (_valid && !GCConfig::is_gc_selected(gc)) {
handle_config_error("Shared file %s error: used '%s' is different from current '%s'", _name, GCConfig::hs_err_name(gc), GCConfig::hs_err_name());
}
// Check flags
verify_flag(_config->_useCompressedOops, UseCompressedOops, "UseCompressedOops");
verify_flag(_config->_useCompressedClassPointers, UseCompressedClassPointers, "UseCompressedClassPointers");
verify_flag(_config->_useTLAB, UseTLAB, "UseTLAB");
verify_flag(_config->_useBiasedLocking, UseBiasedLocking, "UseBiasedLocking");
verify_flag(_config->_objectAlignment, ObjectAlignmentInBytes, "ObjectAlignmentInBytes");
verify_flag(_config->_contendedPaddingWidth, ContendedPaddingWidth, "ContendedPaddingWidth");
verify_flag(_config->_fieldsAllocationStyle, FieldsAllocationStyle, "FieldsAllocationStyle");
verify_flag(_config->_compactFields, CompactFields, "CompactFields");
verify_flag(_config->_enableContended, EnableContended, "EnableContended");
verify_flag(_config->_restrictContended, RestrictContended, "RestrictContended");
verify_flag(_config->_threadLocalHandshakes, ThreadLocalHandshakes, "ThreadLocalHandshakes");
if (!TieredCompilation && _config->_tieredAOT) {
handle_config_error("Shared file %s error: Expected to run with tiered compilation on", _name);
}
// 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 && _valid) {
if (!_narrow_oop_shift_initialized) {
_narrow_oop_shift = _config->_narrowOopShift;
if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set
_narrow_klass_shift = _config->_narrowKlassShift;
}
_narrow_oop_shift_initialized = true;
} else {
verify_flag(_config->_narrowOopShift, _narrow_oop_shift, "aot_config->_narrowOopShift");
if (UseCompressedClassPointers) { // It is set only if UseCompressedOops is set
verify_flag(_config->_narrowKlassShift, _narrow_klass_shift, "aot_config->_narrowKlassShift");
}
}
}
}
AOTLib::~AOTLib() {
os::free((void*) _name);
}
AOTCodeHeap::~AOTCodeHeap() {
FREE_C_HEAP_ARRAY(AOTClass, _classes);
FREE_C_HEAP_ARRAY(CodeToAMethod, _code_to_aot);
}
AOTLib::AOTLib(void* handle, const char* name, int dso_id) : _valid(true), _dl_handle(handle), _dso_id(dso_id) {
_name = (const char*) os::strdup(name);
// Verify that VM runs with the same parameters as AOT tool.
_config = (AOTConfiguration*) load_symbol("A.config");
_header = (AOTHeader*) load_symbol("A.header");
verify_config();
if (!_valid && PrintAOT) {
tty->print("%7d ", (int) tty->time_stamp().milliseconds());
tty->print_cr("%4d skipped %s aot library", _dso_id, _name);
}
}
AOTCodeHeap::AOTCodeHeap(AOTLib* lib) :
CodeHeap("CodeHeap 'AOT'", CodeBlobType::AOT), _lib(lib), _classes(NULL), _code_to_aot(NULL) {
assert(_lib->is_valid(), "invalid library");
_lib_symbols_initialized = false;
_aot_id = 0;
_class_count = _lib->header()->_class_count;
_method_count = _lib->header()->_method_count;
// Collect metaspace info: names -> address in .got section
_metaspace_names = (const char*) _lib->load_symbol("A.meta.names");
_method_metadata = (address) _lib->load_symbol("A.meth.metadata");
_methods_offsets = (address) _lib->load_symbol("A.meth.offsets");
_klasses_offsets = (address) _lib->load_symbol("A.kls.offsets");
_dependencies = (address) _lib->load_symbol("A.kls.dependencies");
_code_space = (address) _lib->load_symbol("A.text");
// First cell is number of elements.
_klasses_got = (Metadata**) _lib->load_symbol("A.kls.got");
_klasses_got_size = _lib->header()->_klasses_got_size;
_metadata_got = (Metadata**) _lib->load_symbol("A.meta.got");
_metadata_got_size = _lib->header()->_metadata_got_size;
_oop_got = (oop*) _lib->load_symbol("A.oop.got");
_oop_got_size = _lib->header()->_oop_got_size;
// Collect stubs info
_stubs_offsets = (int*) _lib->load_symbol("A.stubs.offsets");
// code segments table
_code_segments = (address) _lib->load_symbol("A.code.segments");
// method state
_method_state = (jlong*) _lib->load_symbol("A.meth.state");
// Create a table for mapping classes
_classes = NEW_C_HEAP_ARRAY(AOTClass, _class_count, mtCode);
memset(_classes, 0, _class_count * sizeof(AOTClass));
// Create table for searching AOTCompiledMethod based on pc.
_code_to_aot = NEW_C_HEAP_ARRAY(CodeToAMethod, _method_count, mtCode);
memset(_code_to_aot, 0, _method_count * sizeof(CodeToAMethod));
_memory.set_low_boundary((char *)_code_space);
_memory.set_high_boundary((char *)_code_space);
_memory.set_low((char *)_code_space);
_memory.set_high((char *)_code_space);
_segmap.set_low_boundary((char *)_code_segments);
_segmap.set_low((char *)_code_segments);
_log2_segment_size = exact_log2(_lib->config()->_codeSegmentSize);
// Register aot stubs
register_stubs();
if (PrintAOT || (PrintCompilation && PrintAOT)) {
tty->print("%7d ", (int) tty->time_stamp().milliseconds());
tty->print_cr("%4d loaded %s aot library", _lib->id(), _lib->name());
}
}
void AOTCodeHeap::publish_aot(const methodHandle& mh, AOTMethodData* method_data, int code_id) {
// The method may be explicitly excluded by the user.
// Or Interpreter uses an intrinsic for this method.
// Or method has breakpoints.
if (CompilerOracle::should_exclude(mh) ||
!AbstractInterpreter::can_be_compiled(mh) ||
(mh->number_of_breakpoints() > 0)) {
return;
}
// Make sure no break points were set in the method in case of a safepoint
// in the following code until aot code is registered.
NoSafepointVerifier nsv;
address code = method_data->_code;
const char* name = method_data->_name;
aot_metadata* meta = method_data->_meta;
if (meta->scopes_pcs_begin() == meta->scopes_pcs_end()) {
// Switch off NoSafepointVerifier because log_info() may cause safepoint
// and it is fine because aot code will not be registered here.
PauseNoSafepointVerifier pnsv(&nsv);
// When the AOT compiler compiles something big we fail to generate metadata
// in CodeInstaller::gather_metadata. In that case the scopes_pcs_begin == scopes_pcs_end.
// In all successful cases we always have 2 entries of scope pcs.
log_info(aot, class, resolve)("Failed to load %s (no metadata available)", mh->name_and_sig_as_C_string());
_code_to_aot[code_id]._state = invalid;
return;
}
jlong* state_adr = &_method_state[code_id];
address metadata_table = method_data->_metadata_table;
int metadata_size = method_data->_metadata_size;
assert(code_id < _method_count, "sanity");
_aot_id++;
#ifdef ASSERT
if (_aot_id > CIStop || _aot_id < CIStart) {
// Skip compilation
return;
}
#endif
// Check one more time.
if (_code_to_aot[code_id]._state == invalid) {
return;
}
AOTCompiledMethod *aot = new AOTCompiledMethod(code, mh(), meta, metadata_table, metadata_size, state_adr, this, name, code_id, _aot_id);
assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized");
_code_to_aot[code_id]._aot = aot; // Should set this first
if (Atomic::cmpxchg(&_code_to_aot[code_id]._state, not_set, in_use) != not_set) {
_code_to_aot[code_id]._aot = NULL; // Clean
} else { // success
// Publish method
#ifdef TIERED
mh->set_aot_code(aot);
#endif
{
MutexLocker pl(CompiledMethod_lock, Mutex::_no_safepoint_check_flag);
Method::set_code(mh, aot);
}
if (PrintAOT || (PrintCompilation && PrintAOT)) {
PauseNoSafepointVerifier pnsv(&nsv); // aot code is registered already
aot->print_on(tty, NULL);
}
// Publish oop only after we are visible to CompiledMethodIterator
aot->set_oop(mh()->method_holder()->klass_holder());
}
}
void AOTCodeHeap::link_primitive_array_klasses() {
ResourceMark rm;
for (int i = T_BOOLEAN; i <= T_CONFLICT; i++) {
BasicType t = (BasicType)i;
if (is_java_primitive(t)) {
const Klass* arr_klass = Universe::typeArrayKlassObj(t);
AOTKlassData* klass_data = (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), arr_klass->signature_name());
if (klass_data != NULL) {
// Set both GOT cells, resolved and initialized klass pointers.
// _got_index points to second cell - resolved klass pointer.
_klasses_got[klass_data->_got_index-1] = (Metadata*)arr_klass; // Initialized
_klasses_got[klass_data->_got_index ] = (Metadata*)arr_klass; // Resolved
if (PrintAOT) {
tty->print_cr("[Found %s in %s]", arr_klass->internal_name(), _lib->name());
}
}
}
}
}
void AOTCodeHeap::register_stubs() {
int stubs_count = _stubs_offsets[0]; // contains number
_stubs_offsets++;
AOTMethodOffsets* stub_offsets = (AOTMethodOffsets*)_stubs_offsets;
for (int i = 0; i < stubs_count; ++i) {
const char* stub_name = _metaspace_names + stub_offsets[i]._name_offset;
address entry = _code_space + stub_offsets[i]._code_offset;
aot_metadata* meta = (aot_metadata *) (_method_metadata + stub_offsets[i]._meta_offset);
address metadata_table = (address)_metadata_got + stub_offsets[i]._metadata_got_offset;
int metadata_size = stub_offsets[i]._metadata_got_size;
int code_id = stub_offsets[i]._code_id;
assert(code_id < _method_count, "sanity");
jlong* state_adr = &_method_state[code_id];
int len = Bytes::get_Java_u2((address)stub_name);
stub_name += 2;
char* full_name = NEW_C_HEAP_ARRAY(char, len+5, mtCode);
memcpy(full_name, "AOT ", 4);
memcpy(full_name+4, stub_name, len);
full_name[len+4] = 0;
guarantee(_code_to_aot[code_id]._state != invalid, "stub %s can't be invalidated", full_name);
AOTCompiledMethod* aot = new AOTCompiledMethod(entry, NULL, meta, metadata_table, metadata_size, state_adr, this, full_name, code_id, i);
assert(_code_to_aot[code_id]._aot == NULL, "should be not initialized");
_code_to_aot[code_id]._aot = aot;
if (Atomic::cmpxchg(&_code_to_aot[code_id]._state, not_set, in_use) != not_set) {
fatal("stab '%s' code state is %d", full_name, _code_to_aot[code_id]._state);
}
// Adjust code buffer boundaries only for stubs because they are last in the buffer.
adjust_boundaries(aot);
if (PrintAOT && Verbose) {
aot->print_on(tty, NULL);
}
}
}
#define SET_AOT_GLOBAL_SYMBOL_VALUE(AOTSYMNAME, AOTSYMTYPE, VMSYMVAL) \
{ \
AOTSYMTYPE * adr = (AOTSYMTYPE *) os::dll_lookup(_lib->dl_handle(), AOTSYMNAME); \
/* Check for a lookup error */ \
guarantee(adr != NULL, "AOT Symbol not found %s", AOTSYMNAME); \
*adr = (AOTSYMTYPE) VMSYMVAL; \
}
void AOTCodeHeap::link_graal_runtime_symbols() {
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorenter", address, JVMCIRuntime::monitorenter);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_monitorexit", address, JVMCIRuntime::monitorexit);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_object", address, JVMCIRuntime::log_object);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_printf", address, JVMCIRuntime::log_printf);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_log_primitive", address, JVMCIRuntime::log_primitive);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_instance", address, JVMCIRuntime::new_instance);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_array", address, JVMCIRuntime::new_array);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_multi_array", address, JVMCIRuntime::new_multi_array);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_instance", address, JVMCIRuntime::dynamic_new_instance);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_array", address, JVMCIRuntime::dynamic_new_array);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_instance_or_null", address, JVMCIRuntime::new_instance_or_null);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_array_or_null", address, JVMCIRuntime::new_array_or_null);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_new_multi_array_or_null", address, JVMCIRuntime::new_multi_array_or_null);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_instance_or_null", address, JVMCIRuntime::dynamic_new_instance_or_null);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_dynamic_new_array_or_null", address, JVMCIRuntime::dynamic_new_array_or_null);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_validate_object", address, JVMCIRuntime::validate_object);
#if INCLUDE_G1GC
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_pre", address, JVMCIRuntime::write_barrier_pre);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_write_barrier_post", address, JVMCIRuntime::write_barrier_post);
#endif
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_identity_hash_code", address, JVMCIRuntime::identity_hash_code);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_exception_handler_for_pc", address, JVMCIRuntime::exception_handler_for_pc);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_test_deoptimize_call_int", address, JVMCIRuntime::test_deoptimize_call_int);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_and_post_jvmti_exception", address, JVMCIRuntime::throw_and_post_jvmti_exception);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_klass_external_name_exception", address, JVMCIRuntime::throw_klass_external_name_exception);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_throw_class_cast_exception", address, JVMCIRuntime::throw_class_cast_exception);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_message", address, JVMCIRuntime::vm_message);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_jvmci_runtime_vm_error", address, JVMCIRuntime::vm_error);
}
void AOTCodeHeap::link_shared_runtime_symbols() {
SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_static_entry", address, SharedRuntime::get_resolve_static_call_stub());
SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_virtual_entry", address, SharedRuntime::get_resolve_virtual_call_stub());
SET_AOT_GLOBAL_SYMBOL_VALUE("_resolve_opt_virtual_entry", address, SharedRuntime::get_resolve_opt_virtual_call_stub());
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_unpack", address, SharedRuntime::deopt_blob()->unpack());
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_deopt_blob_uncommon_trap", address, SharedRuntime::deopt_blob()->uncommon_trap());
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_ic_miss_stub", address, SharedRuntime::get_ic_miss_stub());
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_handle_wrong_method_stub", address, SharedRuntime::get_handle_wrong_method_stub());
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_exception_handler_for_return_address", address, SharedRuntime::exception_handler_for_return_address);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_register_finalizer", address, SharedRuntime::register_finalizer);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_object_notify", address, JVMCIRuntime::object_notify);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_object_notifyAll", address, JVMCIRuntime::object_notifyAll);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_OSR_migration_end", address, SharedRuntime::OSR_migration_end);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_enable_stack_reserved_zone", address, SharedRuntime::enable_stack_reserved_zone);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_dynamic_invoke", address, CompilerRuntime::resolve_dynamic_invoke);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_string_by_symbol", address, CompilerRuntime::resolve_string_by_symbol);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_klass_by_symbol", address, CompilerRuntime::resolve_klass_by_symbol);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_resolve_method_by_symbol_and_load_counters", address, CompilerRuntime::resolve_method_by_symbol_and_load_counters);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_initialize_klass_by_symbol", address, CompilerRuntime::initialize_klass_by_symbol);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_invocation_event", address, CompilerRuntime::invocation_event);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_backedge_event", address, CompilerRuntime::backedge_event);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dpow", address, SharedRuntime::dpow);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dexp", address, SharedRuntime::dexp);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dcos", address, SharedRuntime::dcos);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dsin", address, SharedRuntime::dsin);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dtan", address, SharedRuntime::dtan);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog", address, SharedRuntime::dlog);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_shared_runtime_dlog10", address, SharedRuntime::dlog10);
}
void AOTCodeHeap::link_stub_routines_symbols() {
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_arraycopy", address, StubRoutines::_jbyte_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_arraycopy", address, StubRoutines::_jshort_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_arraycopy", address, StubRoutines::_jint_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_arraycopy", address, StubRoutines::_jlong_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy", address, StubRoutines::_oop_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_arraycopy_uninit", address, StubRoutines::_oop_arraycopy_uninit);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jbyte_disjoint_arraycopy", address, StubRoutines::_jbyte_disjoint_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jshort_disjoint_arraycopy", address, StubRoutines::_jshort_disjoint_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jint_disjoint_arraycopy", address, StubRoutines::_jint_disjoint_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_jlong_disjoint_arraycopy", address, StubRoutines::_jlong_disjoint_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy", address, StubRoutines::_oop_disjoint_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_oop_disjoint_arraycopy_uninit", address, StubRoutines::_oop_disjoint_arraycopy_uninit);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_arraycopy", address, StubRoutines::_arrayof_jbyte_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_arraycopy", address, StubRoutines::_arrayof_jshort_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_arraycopy", address, StubRoutines::_arrayof_jint_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_arraycopy", address, StubRoutines::_arrayof_jlong_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy", address, StubRoutines::_arrayof_oop_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_arraycopy_uninit", address, StubRoutines::_arrayof_oop_arraycopy_uninit);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jbyte_disjoint_arraycopy", address, StubRoutines::_arrayof_jbyte_disjoint_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jshort_disjoint_arraycopy", address, StubRoutines::_arrayof_jshort_disjoint_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jint_disjoint_arraycopy", address, StubRoutines::_arrayof_jint_disjoint_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_jlong_disjoint_arraycopy", address, StubRoutines::_arrayof_jlong_disjoint_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy", address, StubRoutines::_arrayof_oop_disjoint_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_arrayof_oop_disjoint_arraycopy_uninit", address, StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_unsafe_arraycopy", address, StubRoutines::_unsafe_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_checkcast_arraycopy", address, StubRoutines::_checkcast_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_generic_arraycopy", address, StubRoutines::_generic_arraycopy);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_encryptBlock", address, StubRoutines::_aescrypt_encryptBlock);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_aescrypt_decryptBlock", address, StubRoutines::_aescrypt_decryptBlock);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_encryptAESCrypt", address, StubRoutines::_cipherBlockChaining_encryptAESCrypt);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_cipherBlockChaining_decryptAESCrypt", address, StubRoutines::_cipherBlockChaining_decryptAESCrypt);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_electronicCodeBook_encryptAESCrypt", address, StubRoutines::_electronicCodeBook_encryptAESCrypt);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_electronicCodeBook_decryptAESCrypt", address, StubRoutines::_electronicCodeBook_decryptAESCrypt);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_update_bytes_crc32", address, StubRoutines::_updateBytesCRC32);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc_table_adr", address, StubRoutines::_crc_table_adr);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompress", address, StubRoutines::_sha1_implCompress);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha1_implCompressMB", address, StubRoutines::_sha1_implCompressMB);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompress", address, StubRoutines::_sha256_implCompress);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha256_implCompressMB", address, StubRoutines::_sha256_implCompressMB);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompress", address, StubRoutines::_sha512_implCompress);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_sha512_implCompressMB", address, StubRoutines::_sha512_implCompressMB);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_multiplyToLen", address, StubRoutines::_multiplyToLen);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_counterMode_AESCrypt", address, StubRoutines::_counterMode_AESCrypt);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_ghash_processBlocks", address, StubRoutines::_ghash_processBlocks);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_base64_encodeBlock", address, StubRoutines::_base64_encodeBlock);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_crc32c_table_addr", address, StubRoutines::_crc32c_table_addr);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesCRC32C", address, StubRoutines::_updateBytesCRC32C);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_updateBytesAdler32", address, StubRoutines::_updateBytesAdler32);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_squareToLen", address, StubRoutines::_squareToLen);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_mulAdd", address, StubRoutines::_mulAdd);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomeryMultiply", address, StubRoutines::_montgomeryMultiply);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_montgomerySquare", address, StubRoutines::_montgomerySquare);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_vectorizedMismatch", address, StubRoutines::_vectorizedMismatch);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_stub_routines_throw_delayed_StackOverflowError_entry", address, StubRoutines::_throw_delayed_StackOverflowError_entry);
}
void AOTCodeHeap::link_os_symbols() {
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeMillis", address, os::javaTimeMillis);
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_os_javaTimeNanos", address, os::javaTimeNanos);
}
/*
* Link any global symbols in precompiled DSO with dlopen() _dl_handle
* dso_handle.
*/
void AOTCodeHeap::link_global_lib_symbols() {
if (!_lib_symbols_initialized) {
_lib_symbols_initialized = true;
CollectedHeap* heap = Universe::heap();
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_card_table_address", address, (BarrierSet::barrier_set()->is_a(BarrierSet::CardTableBarrierSet) ? ci_card_table_address() : NULL));
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_top_address", address, (heap->supports_inline_contig_alloc() ? heap->top_addr() : NULL));
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_heap_end_address", address, (heap->supports_inline_contig_alloc() ? heap->end_addr() : NULL));
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_polling_page", address, os::get_polling_page());
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_klass_base_address", address, CompressedKlassPointers::base());
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_narrow_oop_base_address", address, CompressedOops::base());
#if INCLUDE_G1GC
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_log_of_heap_region_grain_bytes", int, HeapRegion::LogOfHRGrainBytes);
#endif
SET_AOT_GLOBAL_SYMBOL_VALUE("_aot_inline_contiguous_allocation_supported", bool, heap->supports_inline_contig_alloc());
link_shared_runtime_symbols();
link_stub_routines_symbols();
link_os_symbols();
link_graal_runtime_symbols();
// Link primitive array klasses.
link_primitive_array_klasses();
}
}
#ifndef PRODUCT
int AOTCodeHeap::klasses_seen = 0;
int AOTCodeHeap::aot_klasses_found = 0;
int AOTCodeHeap::aot_klasses_fp_miss = 0;
int AOTCodeHeap::aot_klasses_cl_miss = 0;
int AOTCodeHeap::aot_methods_found = 0;
void AOTCodeHeap::print_statistics() {
tty->print_cr("Classes seen: %d AOT classes found: %d AOT methods found: %d", klasses_seen, aot_klasses_found, aot_methods_found);
tty->print_cr("AOT fingerprint mismatches: %d AOT class loader mismatches: %d", aot_klasses_fp_miss, aot_klasses_cl_miss);
}
#endif
Method* AOTCodeHeap::find_method(Klass* klass, Thread* thread, const char* method_name) {
int method_name_len = Bytes::get_Java_u2((address)method_name);
method_name += 2;
const char* signature_name = method_name + method_name_len;
int signature_name_len = Bytes::get_Java_u2((address)signature_name);
signature_name += 2;
// The class should have been loaded so the method and signature should already be
// in the symbol table. If they're not there, the method doesn't exist.
TempNewSymbol name = SymbolTable::probe(method_name, method_name_len);
TempNewSymbol signature = SymbolTable::probe(signature_name, signature_name_len);
Method* m;
if (name == NULL || signature == NULL) {
m = NULL;
} else if (name == vmSymbols::object_initializer_name() ||
name == vmSymbols::class_initializer_name()) {
// Never search superclasses for constructors
if (klass->is_instance_klass()) {
m = InstanceKlass::cast(klass)->find_method(name, signature);
} else {
m = NULL;
}
} else {
m = klass->lookup_method(name, signature);
if (m == NULL && klass->is_instance_klass()) {
m = InstanceKlass::cast(klass)->lookup_method_in_ordered_interfaces(name, signature);
}
}
if (m == NULL) {
// Fatal error because we assume classes and methods should not be changed since aot compilation.
const char* klass_name = klass->external_name();
int klass_len = (int)strlen(klass_name);
char* meta_name = NEW_RESOURCE_ARRAY(char, klass_len + 1 + method_name_len + signature_name_len + 1);
memcpy(meta_name, klass_name, klass_len);
meta_name[klass_len] = '.';
memcpy(&meta_name[klass_len + 1], method_name, method_name_len);
memcpy(&meta_name[klass_len + 1 + method_name_len], signature_name, signature_name_len);
meta_name[klass_len + 1 + method_name_len + signature_name_len] = '\0';
Handle exception = Exceptions::new_exception(thread, vmSymbols::java_lang_NoSuchMethodError(), meta_name);
java_lang_Throwable::print(exception(), tty);
tty->cr();
java_lang_Throwable::print_stack_trace(exception, tty);
tty->cr();
fatal("Failed to find method '%s'", meta_name);
}
NOT_PRODUCT( aot_methods_found++; )
return m;
}
AOTKlassData* AOTCodeHeap::find_klass(const char *name) {
return (AOTKlassData*) os::dll_lookup(_lib->dl_handle(), name);
}
AOTKlassData* AOTCodeHeap::find_klass(InstanceKlass* ik) {
ResourceMark rm;
AOTKlassData* klass_data = find_klass(ik->signature_name());
return klass_data;
}
bool AOTCodeHeap::is_dependent_method(Klass* dependee, AOTCompiledMethod* aot) {
InstanceKlass *dependee_ik = InstanceKlass::cast(dependee);
AOTKlassData* klass_data = find_klass(dependee_ik);
if (klass_data == NULL) {
return false; // no AOT records for this class - no dependencies
}
if (!dependee_ik->has_passed_fingerprint_check()) {
return false; // different class
}
int methods_offset = klass_data->_dependent_methods_offset;
if (methods_offset >= 0) {
address methods_cnt_adr = _dependencies + methods_offset;
int methods_cnt = *(int*)methods_cnt_adr;
int* indexes = (int*)(methods_cnt_adr + 4);
for (int i = 0; i < methods_cnt; ++i) {
int code_id = indexes[i];
if (_code_to_aot[code_id]._aot == aot) {
return true; // found dependent method
}
}
}
return false;
}
void AOTCodeHeap::mark_evol_dependent_methods(InstanceKlass* dependee) {
AOTKlassData* klass_data = find_klass(dependee);
if (klass_data == NULL) {
return; // no AOT records for this class - no dependencies
}
if (!dependee->has_passed_fingerprint_check()) {
return; // different class
}
int methods_offset = klass_data->_dependent_methods_offset;
if (methods_offset >= 0) {
address methods_cnt_adr = _dependencies + methods_offset;
int methods_cnt = *(int*)methods_cnt_adr;
int* indexes = (int*)(methods_cnt_adr + 4);
for (int i = 0; i < methods_cnt; ++i) {
int code_id = indexes[i];
AOTCompiledMethod* aot = _code_to_aot[code_id]._aot;
if (aot != NULL) {
aot->mark_for_deoptimization(false);
}
}
}
}
void AOTCodeHeap::sweep_dependent_methods(int* indexes, int methods_cnt) {
int marked = 0;
for (int i = 0; i < methods_cnt; ++i) {
int code_id = indexes[i];
// Invalidate aot code.
if (Atomic::cmpxchg(&_code_to_aot[code_id]._state, not_set, invalid) != not_set) {
if (_code_to_aot[code_id]._state == in_use) {
AOTCompiledMethod* aot = _code_to_aot[code_id]._aot;
assert(aot != NULL, "aot should be set");
if (!aot->is_runtime_stub()) { // Something is wrong - should not invalidate stubs.
aot->mark_for_deoptimization(false);
marked++;
}
}
}
}
if (marked > 0) {
Deoptimization::deoptimize_all_marked();
}
}
void AOTCodeHeap::sweep_dependent_methods(AOTKlassData* klass_data) {
// Make dependent methods non_entrant forever.
int methods_offset = klass_data->_dependent_methods_offset;
if (methods_offset >= 0) {
address methods_cnt_adr = _dependencies + methods_offset;
int methods_cnt = *(int*)methods_cnt_adr;
int* indexes = (int*)(methods_cnt_adr + 4);
sweep_dependent_methods(indexes, methods_cnt);
}
}
void AOTCodeHeap::sweep_dependent_methods(InstanceKlass* ik) {
AOTKlassData* klass_data = find_klass(ik);
vmassert(klass_data != NULL, "dependency data missing");
sweep_dependent_methods(klass_data);
}
void AOTCodeHeap::sweep_method(AOTCompiledMethod *aot) {
int indexes[] = {aot->method_index()};
sweep_dependent_methods(indexes, 1);
vmassert(aot->method()->code() != aot TIERED_ONLY( && aot->method()->aot_code() == NULL), "method still active");
}
bool AOTCodeHeap::load_klass_data(InstanceKlass* ik, Thread* thread) {
ResourceMark rm;
NOT_PRODUCT( klasses_seen++; )
// AOT does not support custom class loaders.
ClassLoaderData* cld = ik->class_loader_data();
if (!cld->is_builtin_class_loader_data()) {
log_trace(aot, class, load)("skip class %s for custom classloader %s (%p) tid=" INTPTR_FORMAT,
ik->internal_name(), cld->loader_name(), cld, p2i(thread));
return false;
}
AOTKlassData* klass_data = find_klass(ik);
if (klass_data == NULL) {
return false;
}
if (!ik->has_passed_fingerprint_check()) {
NOT_PRODUCT( aot_klasses_fp_miss++; )
log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT,
ik->internal_name(), ik->is_shared() ? " (shared)" : "",
_lib->name(), p2i(thread));
sweep_dependent_methods(klass_data);
return false;
}
if (ik->has_been_redefined()) {
log_trace(aot, class, load)("class %s%s in %s has been redefined tid=" INTPTR_FORMAT,
ik->internal_name(), ik->is_shared() ? " (shared)" : "",
_lib->name(), p2i(thread));
sweep_dependent_methods(klass_data);
return false;
}
assert(klass_data->_class_id < _class_count, "invalid class id");
AOTClass* aot_class = &_classes[klass_data->_class_id];
ClassLoaderData* aot_cld = aot_class->_classloader;
if (aot_cld != NULL && aot_cld != cld) {
log_trace(aot, class, load)("class %s in %s already loaded for classloader %s (%p) vs %s (%p) tid=" INTPTR_FORMAT,
ik->internal_name(), _lib->name(), aot_cld->loader_name(), aot_cld, cld->loader_name(), cld, p2i(thread));
NOT_PRODUCT( aot_klasses_cl_miss++; )
return false;
}
if (_lib->config()->_omitAssertions && JavaAssertions::enabled(ik->name()->as_C_string(), ik->class_loader() == NULL)) {
log_trace(aot, class, load)("class %s in %s does not have java assertions in compiled code, but assertions are enabled for this execution.", ik->internal_name(), _lib->name());
sweep_dependent_methods(klass_data);
return false;
}
NOT_PRODUCT( aot_klasses_found++; )
log_trace(aot, class, load)("found %s in %s for classloader %s (%p) tid=" INTPTR_FORMAT, ik->internal_name(), _lib->name(), cld->loader_name(), cld, p2i(thread));
aot_class->_classloader = cld;
// Set klass's Resolve (second) got cell.
_klasses_got[klass_data->_got_index] = ik;
if (ik->is_initialized()) {
_klasses_got[klass_data->_got_index - 1] = ik;
}
// Initialize global symbols of the DSO to the corresponding VM symbol values.
link_global_lib_symbols();
int methods_offset = klass_data->_compiled_methods_offset;
if (methods_offset >= 0) {
address methods_cnt_adr = _methods_offsets + methods_offset;
int methods_cnt = *(int*)methods_cnt_adr;
// Collect data about compiled methods
AOTMethodData* methods_data = NEW_RESOURCE_ARRAY(AOTMethodData, methods_cnt);
AOTMethodOffsets* methods_offsets = (AOTMethodOffsets*)(methods_cnt_adr + 4);
for (int i = 0; i < methods_cnt; ++i) {
AOTMethodOffsets* method_offsets = &methods_offsets[i];
int code_id = method_offsets->_code_id;
if (_code_to_aot[code_id]._state == invalid) {
continue; // skip AOT methods slots which have been invalidated
}
AOTMethodData* method_data = &methods_data[i];
const char* aot_name = _metaspace_names + method_offsets->_name_offset;
method_data->_name = aot_name;
method_data->_code = _code_space + method_offsets->_code_offset;
method_data->_meta = (aot_metadata*)(_method_metadata + method_offsets->_meta_offset);
method_data->_metadata_table = (address)_metadata_got + method_offsets->_metadata_got_offset;
method_data->_metadata_size = method_offsets->_metadata_got_size;
// aot_name format: "<u2_size>Ljava/lang/ThreadGroup;<u2_size>addUnstarted<u2_size>()V"
int klass_len = Bytes::get_Java_u2((address)aot_name);
const char* method_name = aot_name + 2 + klass_len;
Method* m = AOTCodeHeap::find_method(ik, thread, method_name);
methodHandle mh(thread, m);
if (mh->code() != NULL) { // Does it have already compiled code?
continue; // Don't overwrite
}
publish_aot(mh, method_data, code_id);
}
}
return true;
}
AOTCompiledMethod* AOTCodeHeap::next_in_use_at(int start) const {
for (int index = start; index < _method_count; index++) {
if (_code_to_aot[index]._state != in_use) {
continue; // Skip uninitialized entries.
}
AOTCompiledMethod* aot = _code_to_aot[index]._aot;
return aot;
}
return NULL;
}
void* AOTCodeHeap::first() const {
return next_in_use_at(0);
}
void* AOTCodeHeap::next(void* p) const {
AOTCompiledMethod *aot = (AOTCompiledMethod *)p;
int next_index = aot->method_index() + 1;
assert(next_index <= _method_count, "");
if (next_index == _method_count) {
return NULL;
}
return next_in_use_at(next_index);
}
void* AOTCodeHeap::find_start(void* p) const {
if (!contains(p)) {
return NULL;
}
size_t offset = pointer_delta(p, low_boundary(), 1);
// Use segments table
size_t seg_idx = offset / _lib->config()->_codeSegmentSize;
if ((int)(_code_segments[seg_idx]) == 0xff) {
return NULL;
}
while (_code_segments[seg_idx] > 0) {
seg_idx -= (int)_code_segments[seg_idx];
}
int code_offset = (int)seg_idx * _lib->config()->_codeSegmentSize;
int aot_index = *(int*)(_code_space + code_offset);
AOTCompiledMethod* aot = _code_to_aot[aot_index]._aot;
assert(aot != NULL, "should find registered aot method");
return aot;
}
AOTCompiledMethod* AOTCodeHeap::find_aot(address p) const {
assert(contains(p), "should be here");
return (AOTCompiledMethod *)find_start(p);
}
CodeBlob* AOTCodeHeap::find_blob_unsafe(void* start) const {
return (CodeBlob*)AOTCodeHeap::find_start(start);
}
void AOTCodeHeap::oops_do(OopClosure* f) {
for (int i = 0; i < _oop_got_size; i++) {
oop* p = &_oop_got[i];
if (*p == NULL) continue; // skip non-oops
f->do_oop(p);
}
for (int index = 0; index < _method_count; index++) {
if (_code_to_aot[index]._state != in_use) {
continue; // Skip uninitialized entries.
}
AOTCompiledMethod* aot = _code_to_aot[index]._aot;
aot->do_oops(f);
}
}
// Scan only klasses_got cells which should have only Klass*,
// metadata_got cells are scanned only for alive AOT methods
// by AOTCompiledMethod::metadata_do().
void AOTCodeHeap::got_metadata_do(MetadataClosure* f) {
for (int i = 1; i < _klasses_got_size; i++) {
Metadata** p = &_klasses_got[i];
Metadata* md = *p;
if (md == NULL) continue; // skip non-oops
if (Metaspace::contains(md)) {
f->do_metadata(md);
} else {
intptr_t meta = (intptr_t)md;
fatal("Invalid value in _klasses_got[%d] = " INTPTR_FORMAT, i, meta);
}
}
}
void AOTCodeHeap::cleanup_inline_caches() {
for (int index = 0; index < _method_count; index++) {
if (_code_to_aot[index]._state != in_use) {
continue; // Skip uninitialized entries.
}
AOTCompiledMethod* aot = _code_to_aot[index]._aot;
aot->cleanup_inline_caches(false);
}
}
#ifdef ASSERT
int AOTCodeHeap::verify_icholder_relocations() {
int count = 0;
for (int index = 0; index < _method_count; index++) {
if (_code_to_aot[index]._state != in_use) {
continue; // Skip uninitialized entries.
}
AOTCompiledMethod* aot = _code_to_aot[index]._aot;
count += aot->verify_icholder_relocations();
}
return count;
}
#endif
void AOTCodeHeap::metadata_do(MetadataClosure* f) {
for (int index = 0; index < _method_count; index++) {
if (_code_to_aot[index]._state != in_use) {
continue; // Skip uninitialized entries.
}
AOTCompiledMethod* aot = _code_to_aot[index]._aot;
if (aot->_is_alive()) {
aot->metadata_do(f);
}
}
// Scan klasses_got cells.
got_metadata_do(f);
}
bool AOTCodeHeap::reconcile_dynamic_klass(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Klass *dyno_klass, const char *descriptor1, const char *descriptor2) {
const char * const descriptors[2] = {descriptor1, descriptor2};
JavaThread *thread = JavaThread::current();
ResourceMark rm(thread);
AOTKlassData* holder_data = find_klass(holder);
vmassert(holder_data != NULL, "klass %s not found", holder->signature_name());
vmassert(is_dependent_method(holder, caller), "sanity");
AOTKlassData* dyno_data = NULL;
bool adapter_failed = false;
char buf[64];
int descriptor_index = 0;
// descriptors[0] specific name ("adapter:<method_id>") for matching
// descriptors[1] fall-back name ("adapter") for depdencies
while (descriptor_index < 2) {
const char *descriptor = descriptors[descriptor_index];
if (descriptor == NULL) {
break;
}
jio_snprintf(buf, sizeof buf, "%s<%d:%d>", descriptor, holder_data->_class_id, index);
dyno_data = find_klass(buf);
if (dyno_data != NULL) {
break;
}
// If match failed then try fall-back for dependencies
++descriptor_index;
adapter_failed = true;
}
if (dyno_data == NULL && dyno_klass == NULL) {
// all is well, no (appendix) at compile-time, and still none
return true;
}
if (dyno_data == NULL) {
// no (appendix) at build-time, but now there is
sweep_dependent_methods(holder_data);
return false;
}
if (adapter_failed) {
// adapter method mismatch
sweep_dependent_methods(holder_data);
sweep_dependent_methods(dyno_data);
return false;
}
if (dyno_klass == NULL) {
// (appendix) at build-time, none now
sweep_dependent_methods(holder_data);
sweep_dependent_methods(dyno_data);
return false;
}
// TODO: support array appendix object
if (!dyno_klass->is_instance_klass()) {
sweep_dependent_methods(holder_data);
sweep_dependent_methods(dyno_data);
return false;
}
InstanceKlass* dyno = InstanceKlass::cast(dyno_klass);
if (!dyno->is_unsafe_anonymous()) {
if (_klasses_got[dyno_data->_got_index] != dyno) {
// compile-time class different from runtime class, fail and deoptimize
sweep_dependent_methods(holder_data);
sweep_dependent_methods(dyno_data);
return false;
}
if (dyno->is_initialized()) {
_klasses_got[dyno_data->_got_index - 1] = dyno;
}
return true;
}
// TODO: support anonymous supers
if (!dyno->supers_have_passed_fingerprint_checks() || dyno->get_stored_fingerprint() != dyno_data->_fingerprint) {
NOT_PRODUCT( aot_klasses_fp_miss++; )
log_trace(aot, class, fingerprint)("class %s%s has bad fingerprint in %s tid=" INTPTR_FORMAT,
dyno->internal_name(), dyno->is_shared() ? " (shared)" : "",
_lib->name(), p2i(thread));
sweep_dependent_methods(holder_data);
sweep_dependent_methods(dyno_data);
return false;
}
_klasses_got[dyno_data->_got_index] = dyno;
if (dyno->is_initialized()) {
_klasses_got[dyno_data->_got_index - 1] = dyno;
}
// TODO: hook up any AOT code
// load_klass_data(dyno_data, thread);
return true;
}
bool AOTCodeHeap::reconcile_dynamic_method(AOTCompiledMethod *caller, InstanceKlass* holder, int index, Method *adapter_method) {
InstanceKlass *adapter_klass = adapter_method->method_holder();
char buf[64];
jio_snprintf(buf, sizeof buf, "adapter:%d", adapter_method->method_idnum());
if (!reconcile_dynamic_klass(caller, holder, index, adapter_klass, buf, "adapter")) {
return false;
}
return true;
}
bool AOTCodeHeap::reconcile_dynamic_invoke(AOTCompiledMethod* caller, InstanceKlass* holder, int index, Method* adapter_method, Klass *appendix_klass) {
if (!reconcile_dynamic_klass(caller, holder, index, appendix_klass, "appendix")) {
return false;
}
if (!reconcile_dynamic_method(caller, holder, index, adapter_method)) {
return false;
}
return true;
}