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jdk-24/hotspot/src/share/vm/jvmci/jvmciCompilerToVM.cpp

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8136421: JEP 243: Java-Level JVM Compiler Interface Reviewed-by: ihse, alanb, roland, coleenp, iveresov, kvn, kbarrett
2015-10-08 12:49:30 -10:00
/*
* Copyright (c) 2011, 2015, 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 "code/codeCache.hpp"
#include "code/scopeDesc.hpp"
#include "interpreter/linkResolver.hpp"
#include "memory/oopFactory.hpp"
#include "oops/generateOopMap.hpp"
#include "oops/fieldStreams.hpp"
#include "oops/oop.inline.hpp"
#include "oops/objArrayOop.inline.hpp"
#include "runtime/fieldDescriptor.hpp"
#include "runtime/javaCalls.hpp"
#include "jvmci/jvmciRuntime.hpp"
#include "compiler/abstractCompiler.hpp"
#include "compiler/compileBroker.hpp"
#include "compiler/compilerOracle.hpp"
#include "compiler/disassembler.hpp"
#include "compiler/oopMap.hpp"
#include "jvmci/jvmciCompilerToVM.hpp"
#include "jvmci/jvmciCompiler.hpp"
#include "jvmci/jvmciEnv.hpp"
#include "jvmci/jvmciJavaClasses.hpp"
#include "jvmci/jvmciCodeInstaller.hpp"
#include "gc/g1/heapRegion.hpp"
#include "runtime/javaCalls.hpp"
#include "runtime/deoptimization.hpp"
#include "runtime/vframe.hpp"
#include "runtime/vframe_hp.hpp"
#include "runtime/vmStructs.hpp"
// Entry to native method implementation that transitions current thread to '_thread_in_vm'.
#define C2V_VMENTRY(result_type, name, signature) \
JNIEXPORT result_type JNICALL c2v_ ## name signature { \
TRACE_jvmci_1("CompilerToVM::" #name); \
TRACE_CALL(result_type, jvmci_ ## name signature) \
JVMCI_VM_ENTRY_MARK; \
#define C2V_END }
oop CompilerToVM::get_jvmci_method(methodHandle method, TRAPS) {
if (method() != NULL) {
JavaValue result(T_OBJECT);
JavaCallArguments args;
args.push_long((jlong) (address) method());
JavaCalls::call_static(&result, SystemDictionary::HotSpotResolvedJavaMethodImpl_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::method_fromMetaspace_signature(), &args, CHECK_NULL);
return (oop)result.get_jobject();
}
return NULL;
}
oop CompilerToVM::get_jvmci_type(KlassHandle klass, TRAPS) {
if (klass() != NULL) {
JavaValue result(T_OBJECT);
JavaCallArguments args;
args.push_oop(klass->java_mirror());
JavaCalls::call_static(&result, SystemDictionary::HotSpotResolvedObjectTypeImpl_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::klass_fromMetaspace_signature(), &args, CHECK_NULL);
return (oop)result.get_jobject();
}
return NULL;
}
extern "C" {
extern VMStructEntry* gHotSpotVMStructs;
extern uint64_t gHotSpotVMStructEntryTypeNameOffset;
extern uint64_t gHotSpotVMStructEntryFieldNameOffset;
extern uint64_t gHotSpotVMStructEntryTypeStringOffset;
extern uint64_t gHotSpotVMStructEntryIsStaticOffset;
extern uint64_t gHotSpotVMStructEntryOffsetOffset;
extern uint64_t gHotSpotVMStructEntryAddressOffset;
extern uint64_t gHotSpotVMStructEntryArrayStride;
extern VMTypeEntry* gHotSpotVMTypes;
extern uint64_t gHotSpotVMTypeEntryTypeNameOffset;
extern uint64_t gHotSpotVMTypeEntrySuperclassNameOffset;
extern uint64_t gHotSpotVMTypeEntryIsOopTypeOffset;
extern uint64_t gHotSpotVMTypeEntryIsIntegerTypeOffset;
extern uint64_t gHotSpotVMTypeEntryIsUnsignedOffset;
extern uint64_t gHotSpotVMTypeEntrySizeOffset;
extern uint64_t gHotSpotVMTypeEntryArrayStride;
extern VMIntConstantEntry* gHotSpotVMIntConstants;
extern uint64_t gHotSpotVMIntConstantEntryNameOffset;
extern uint64_t gHotSpotVMIntConstantEntryValueOffset;
extern uint64_t gHotSpotVMIntConstantEntryArrayStride;
extern VMLongConstantEntry* gHotSpotVMLongConstants;
extern uint64_t gHotSpotVMLongConstantEntryNameOffset;
extern uint64_t gHotSpotVMLongConstantEntryValueOffset;
extern uint64_t gHotSpotVMLongConstantEntryArrayStride;
extern VMAddressEntry* gHotSpotVMAddresses;
extern uint64_t gHotSpotVMAddressEntryNameOffset;
extern uint64_t gHotSpotVMAddressEntryValueOffset;
extern uint64_t gHotSpotVMAddressEntryArrayStride;
}
// FIXME This is only temporary until the GC code is changed.
bool CompilerToVM::_supports_inline_contig_alloc;
HeapWord** CompilerToVM::_heap_end_addr;
HeapWord** CompilerToVM::_heap_top_addr;
/**
* We put all gHotSpotVM values in an array so we can read them easily from Java.
*/
static uintptr_t ciHotSpotVMData[28];
C2V_VMENTRY(jlong, initializeConfiguration, (JNIEnv *env, jobject))
ciHotSpotVMData[0] = (uintptr_t) gHotSpotVMStructs;
ciHotSpotVMData[1] = gHotSpotVMStructEntryTypeNameOffset;
ciHotSpotVMData[2] = gHotSpotVMStructEntryFieldNameOffset;
ciHotSpotVMData[3] = gHotSpotVMStructEntryTypeStringOffset;
ciHotSpotVMData[4] = gHotSpotVMStructEntryIsStaticOffset;
ciHotSpotVMData[5] = gHotSpotVMStructEntryOffsetOffset;
ciHotSpotVMData[6] = gHotSpotVMStructEntryAddressOffset;
ciHotSpotVMData[7] = gHotSpotVMStructEntryArrayStride;
ciHotSpotVMData[8] = (uintptr_t) gHotSpotVMTypes;
ciHotSpotVMData[9] = gHotSpotVMTypeEntryTypeNameOffset;
ciHotSpotVMData[10] = gHotSpotVMTypeEntrySuperclassNameOffset;
ciHotSpotVMData[11] = gHotSpotVMTypeEntryIsOopTypeOffset;
ciHotSpotVMData[12] = gHotSpotVMTypeEntryIsIntegerTypeOffset;
ciHotSpotVMData[13] = gHotSpotVMTypeEntryIsUnsignedOffset;
ciHotSpotVMData[14] = gHotSpotVMTypeEntrySizeOffset;
ciHotSpotVMData[15] = gHotSpotVMTypeEntryArrayStride;
ciHotSpotVMData[16] = (uintptr_t) gHotSpotVMIntConstants;
ciHotSpotVMData[17] = gHotSpotVMIntConstantEntryNameOffset;
ciHotSpotVMData[18] = gHotSpotVMIntConstantEntryValueOffset;
ciHotSpotVMData[19] = gHotSpotVMIntConstantEntryArrayStride;
ciHotSpotVMData[20] = (uintptr_t) gHotSpotVMLongConstants;
ciHotSpotVMData[21] = gHotSpotVMLongConstantEntryNameOffset;
ciHotSpotVMData[22] = gHotSpotVMLongConstantEntryValueOffset;
ciHotSpotVMData[23] = gHotSpotVMLongConstantEntryArrayStride;
ciHotSpotVMData[24] = (uintptr_t) gHotSpotVMAddresses;
ciHotSpotVMData[25] = gHotSpotVMAddressEntryNameOffset;
ciHotSpotVMData[26] = gHotSpotVMAddressEntryValueOffset;
ciHotSpotVMData[27] = gHotSpotVMAddressEntryArrayStride;
// FIXME This is only temporary until the GC code is changed.
CompilerToVM::_supports_inline_contig_alloc = Universe::heap()->supports_inline_contig_alloc();
CompilerToVM::_heap_end_addr = CompilerToVM::_supports_inline_contig_alloc ? Universe::heap()->end_addr() : (HeapWord**) -1;
CompilerToVM::_heap_top_addr = CompilerToVM::_supports_inline_contig_alloc ? Universe::heap()->top_addr() : (HeapWord**) -1;
return (jlong) (address) &ciHotSpotVMData;
C2V_END
C2V_VMENTRY(jbyteArray, getBytecode, (JNIEnv *, jobject, jobject jvmci_method))
methodHandle method = CompilerToVM::asMethod(jvmci_method);
ResourceMark rm;
int code_size = method->code_size();
typeArrayOop reconstituted_code = oopFactory::new_byteArray(code_size, CHECK_NULL);
guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten");
// iterate over all bytecodes and replace non-Java bytecodes
for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) {
Bytecodes::Code code = s.code();
Bytecodes::Code raw_code = s.raw_code();
int bci = s.bci();
int len = s.instruction_size();
// Restore original byte code.
reconstituted_code->byte_at_put(bci, (jbyte) (s.is_wide()? Bytecodes::_wide : code));
if (len > 1) {
memcpy(reconstituted_code->byte_at_addr(bci + 1), s.bcp()+1, len-1);
}
if (len > 1) {
// Restore the big-endian constant pool indexes.
// Cf. Rewriter::scan_method
switch (code) {
case Bytecodes::_getstatic:
case Bytecodes::_putstatic:
case Bytecodes::_getfield:
case Bytecodes::_putfield:
case Bytecodes::_invokevirtual:
case Bytecodes::_invokespecial:
case Bytecodes::_invokestatic:
case Bytecodes::_invokeinterface:
case Bytecodes::_invokehandle: {
int cp_index = Bytes::get_native_u2((address) reconstituted_code->byte_at_addr(bci + 1));
Bytes::put_Java_u2((address) reconstituted_code->byte_at_addr(bci + 1), (u2) cp_index);
break;
}
case Bytecodes::_invokedynamic:
int cp_index = Bytes::get_native_u4((address) reconstituted_code->byte_at_addr(bci + 1));
Bytes::put_Java_u4((address) reconstituted_code->byte_at_addr(bci + 1), (u4) cp_index);
break;
}
// Not all ldc byte code are rewritten.
switch (raw_code) {
case Bytecodes::_fast_aldc: {
int cpc_index = reconstituted_code->byte_at(bci + 1) & 0xff;
int cp_index = method->constants()->object_to_cp_index(cpc_index);
assert(cp_index < method->constants()->length(), "sanity check");
reconstituted_code->byte_at_put(bci + 1, (jbyte) cp_index);
break;
}
case Bytecodes::_fast_aldc_w: {
int cpc_index = Bytes::get_native_u2((address) reconstituted_code->byte_at_addr(bci + 1));
int cp_index = method->constants()->object_to_cp_index(cpc_index);
assert(cp_index < method->constants()->length(), "sanity check");
Bytes::put_Java_u2((address) reconstituted_code->byte_at_addr(bci + 1), (u2) cp_index);
break;
}
}
}
}
return (jbyteArray) JNIHandles::make_local(THREAD, reconstituted_code);
C2V_END
C2V_VMENTRY(jint, getExceptionTableLength, (JNIEnv *, jobject, jobject jvmci_method))
ResourceMark rm;
methodHandle method = CompilerToVM::asMethod(jvmci_method);
return method->exception_table_length();
C2V_END
C2V_VMENTRY(jlong, getExceptionTableStart, (JNIEnv *, jobject, jobject jvmci_method))
ResourceMark rm;
methodHandle method = CompilerToVM::asMethod(jvmci_method);
if (method->exception_table_length() == 0) {
return 0L;
}
return (jlong) (address) method->exception_table_start();
C2V_END
C2V_VMENTRY(jobject, getResolvedJavaMethodAtSlot, (JNIEnv *, jobject, jclass holder_handle, jint slot))
oop java_class = JNIHandles::resolve(holder_handle);
Klass* holder = java_lang_Class::as_Klass(java_class);
methodHandle method = InstanceKlass::cast(holder)->method_with_idnum(slot);
oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL);
return JNIHandles::make_local(THREAD, result);
}
C2V_VMENTRY(jobject, getResolvedJavaMethod, (JNIEnv *, jobject, jobject base, jlong offset))
methodHandle method;
oop base_object = JNIHandles::resolve(base);
if (base_object == NULL) {
method = *((Method**)(offset));
} else if (base_object->is_a(SystemDictionary::MemberName_klass())) {
method = (Method*) (intptr_t) base_object->long_field(offset);
} else if (base_object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) {
method = *((Method**)(HotSpotResolvedJavaMethodImpl::metaspaceMethod(base_object) + offset));
} else {
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
err_msg("Unexpected type: %s", base_object->klass()->external_name()));
}
assert (method.is_null() || method->is_method(), "invalid read");
oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL);
return JNIHandles::make_local(THREAD, result);
}
C2V_VMENTRY(jobject, getConstantPool, (JNIEnv *, jobject, jobject base, jlong offset))
constantPoolHandle cp;
oop base_object = JNIHandles::resolve(base);
jlong base_address = 0;
if (base_object != NULL) {
if (base_object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) {
base_address = HotSpotResolvedJavaMethodImpl::metaspaceMethod(base_object);
} else if (base_object->is_a(SystemDictionary::HotSpotConstantPool_klass())) {
base_address = HotSpotConstantPool::metaspaceConstantPool(base_object);
} else if (base_object->is_a(SystemDictionary::HotSpotResolvedObjectTypeImpl_klass())) {
base_address = (jlong) CompilerToVM::asKlass(base_object);
} else {
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
err_msg("Unexpected type: %s", base_object->klass()->external_name()));
}
}
cp = *((ConstantPool**) (intptr_t) (base_address + offset));
if (!cp.is_null()) {
JavaValue method_result(T_OBJECT);
JavaCallArguments args;
args.push_long((jlong) (address) cp());
JavaCalls::call_static(&method_result, SystemDictionary::HotSpotConstantPool_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::constantPool_fromMetaspace_signature(), &args, CHECK_NULL);
return JNIHandles::make_local(THREAD, (oop)method_result.get_jobject());
}
return NULL;
}
C2V_VMENTRY(jobject, getResolvedJavaType, (JNIEnv *, jobject, jobject base, jlong offset, jboolean compressed))
KlassHandle klass;
oop base_object = JNIHandles::resolve(base);
jlong base_address = 0;
if (base_object != NULL && offset == oopDesc::klass_offset_in_bytes()) {
klass = base_object->klass();
} else if (!compressed) {
if (base_object != NULL) {
if (base_object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) {
base_address = HotSpotResolvedJavaMethodImpl::metaspaceMethod(base_object);
} else if (base_object->is_a(SystemDictionary::HotSpotConstantPool_klass())) {
base_address = HotSpotConstantPool::metaspaceConstantPool(base_object);
} else if (base_object->is_a(SystemDictionary::HotSpotResolvedObjectTypeImpl_klass())) {
base_address = (jlong) CompilerToVM::asKlass(base_object);
} else if (base_object->is_a(SystemDictionary::Class_klass())) {
base_address = (jlong) (address) base_object;
} else {
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", base_object->klass()->external_name(), offset, compressed ? "true" : "false"));
}
}
klass = *((Klass**) (intptr_t) (base_address + offset));
} else {
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", base_object->klass()->external_name(), offset, compressed ? "true" : "false"));
}
assert (klass.is_null() || klass->is_klass(), "invalid read");
oop result = CompilerToVM::get_jvmci_type(klass, CHECK_NULL);
return JNIHandles::make_local(THREAD, result);
}
C2V_VMENTRY(jobject, findUniqueConcreteMethod, (JNIEnv *, jobject, jobject jvmci_type, jobject jvmci_method))
ResourceMark rm;
methodHandle method = CompilerToVM::asMethod(jvmci_method);
KlassHandle holder = CompilerToVM::asKlass(jvmci_type);
if (holder->is_interface()) {
THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Interface %s should be handled in Java code", holder->external_name()));
}
methodHandle ucm;
{
MutexLocker locker(Compile_lock);
ucm = Dependencies::find_unique_concrete_method(holder(), method());
}
oop result = CompilerToVM::get_jvmci_method(ucm, CHECK_NULL);
return JNIHandles::make_local(THREAD, result);
C2V_END
C2V_VMENTRY(jobject, getImplementor, (JNIEnv *, jobject, jobject jvmci_type))
InstanceKlass* klass = (InstanceKlass*) CompilerToVM::asKlass(jvmci_type);
oop implementor = CompilerToVM::get_jvmci_type(klass->implementor(), CHECK_NULL);
return JNIHandles::make_local(THREAD, implementor);
C2V_END
C2V_VMENTRY(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv *, jobject, jobject jvmci_method))
methodHandle method = CompilerToVM::asMethod(jvmci_method);
return method->is_ignored_by_security_stack_walk();
C2V_END
C2V_VMENTRY(jboolean, canInlineMethod,(JNIEnv *, jobject, jobject jvmci_method))
methodHandle method = CompilerToVM::asMethod(jvmci_method);
return !method->is_not_compilable() && !CompilerOracle::should_not_inline(method) && !method->dont_inline();
C2V_END
C2V_VMENTRY(jboolean, shouldInlineMethod,(JNIEnv *, jobject, jobject jvmci_method))
methodHandle method = CompilerToVM::asMethod(jvmci_method);
return CompilerOracle::should_inline(method) || method->force_inline();
C2V_END
C2V_VMENTRY(jobject, lookupType, (JNIEnv*, jobject, jstring jname, jclass accessing_class, jboolean resolve))
ResourceMark rm;
Handle name = JNIHandles::resolve(jname);
Symbol* class_name = java_lang_String::as_symbol(name, CHECK_0);
if (java_lang_String::length(name()) <= 1) {
THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Primitive type %s should be handled in Java code", class_name->as_C_string()));
}
Klass* resolved_klass = NULL;
Handle class_loader;
Handle protection_domain;
if (JNIHandles::resolve(accessing_class) == NULL) {
THROW_0(vmSymbols::java_lang_NullPointerException());
}
Klass* accessing_klass = java_lang_Class::as_Klass(JNIHandles::resolve(accessing_class));
class_loader = accessing_klass->class_loader();
protection_domain = accessing_klass->protection_domain();
if (resolve) {
resolved_klass = SystemDictionary::resolve_or_null(class_name, class_loader, protection_domain, CHECK_0);
} else {
if (class_name->byte_at(0) == 'L' &&
class_name->byte_at(class_name->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(class_name->as_utf8()+1,
class_name->utf8_length()-2,
CHECK_0);
resolved_klass = SystemDictionary::find(strippedsym, class_loader, protection_domain, CHECK_0);
} else if (FieldType::is_array(class_name)) {
FieldArrayInfo fd;
// dimension and object_key in FieldArrayInfo are assigned as a side-effect
// of this call
BasicType t = FieldType::get_array_info(class_name, fd, CHECK_0);
if (t == T_OBJECT) {
TempNewSymbol strippedsym = SymbolTable::new_symbol(class_name->as_utf8()+1+fd.dimension(),
class_name->utf8_length()-2-fd.dimension(),
CHECK_0);
// naked oop "k" is OK here -- we assign back into it
resolved_klass = SystemDictionary::find(strippedsym,
class_loader,
protection_domain,
CHECK_0);
if (resolved_klass != NULL) {
resolved_klass = resolved_klass->array_klass(fd.dimension(), CHECK_0);
}
} else {
resolved_klass = Universe::typeArrayKlassObj(t);
resolved_klass = TypeArrayKlass::cast(resolved_klass)->array_klass(fd.dimension(), CHECK_0);
}
}
}
Handle result = CompilerToVM::get_jvmci_type(resolved_klass, CHECK_NULL);
return JNIHandles::make_local(THREAD, result());
C2V_END
C2V_VMENTRY(jobject, resolveConstantInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
oop result = cp->resolve_constant_at(index, CHECK_NULL);
return JNIHandles::make_local(THREAD, result);
C2V_END
C2V_VMENTRY(jobject, resolvePossiblyCachedConstantInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
oop result = cp->resolve_possibly_cached_constant_at(index, CHECK_NULL);
return JNIHandles::make_local(THREAD, result);
C2V_END
C2V_VMENTRY(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
return cp->name_and_type_ref_index_at(index);
C2V_END
C2V_VMENTRY(jobject, lookupNameInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint which))
constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
Handle sym = java_lang_String::create_from_symbol(cp->name_ref_at(which), CHECK_NULL);
return JNIHandles::make_local(THREAD, sym());
C2V_END
C2V_VMENTRY(jobject, lookupSignatureInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint which))
constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
Handle sym = java_lang_String::create_from_symbol(cp->signature_ref_at(which), CHECK_NULL);
return JNIHandles::make_local(THREAD, sym());
C2V_END
C2V_VMENTRY(jint, lookupKlassRefIndexInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
return cp->klass_ref_index_at(index);
C2V_END
C2V_VMENTRY(jobject, resolveTypeInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
Klass* resolved_klass = cp->klass_at(index, CHECK_NULL);
Handle klass = CompilerToVM::get_jvmci_type(resolved_klass, CHECK_NULL);
return JNIHandles::make_local(THREAD, klass());
C2V_END
C2V_VMENTRY(jobject, lookupKlassInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
KlassHandle loading_klass(cp->pool_holder());
bool is_accessible = false;
KlassHandle klass = JVMCIEnv::get_klass_by_index(cp, index, is_accessible, loading_klass);
Symbol* symbol = NULL;
if (klass.is_null()) {
symbol = cp->klass_name_at(index);
}
Handle result;
if (!klass.is_null()) {
result = CompilerToVM::get_jvmci_type(klass, CHECK_NULL);
} else {
result = java_lang_String::create_from_symbol(symbol, CHECK_NULL);
}
return JNIHandles::make_local(THREAD, result());
C2V_END
C2V_VMENTRY(jobject, lookupAppendixInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index);
return JNIHandles::make_local(THREAD, appendix_oop);
C2V_END
C2V_VMENTRY(jobject, lookupMethodInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
instanceKlassHandle pool_holder(cp->pool_holder());
Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
methodHandle method = JVMCIEnv::get_method_by_index(cp, index, bc, pool_holder);
oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL);
return JNIHandles::make_local(THREAD, result);
C2V_END
C2V_VMENTRY(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
return cp->remap_instruction_operand_from_cache(index);
C2V_END
C2V_VMENTRY(jobject, resolveFieldInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode, jlongArray info_handle))
ResourceMark rm;
constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
fieldDescriptor fd;
LinkInfo link_info(cp, index, CHECK_0);
LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_0);
typeArrayOop info = (typeArrayOop) JNIHandles::resolve(info_handle);
assert(info != NULL && info->length() == 2, "must be");
info->long_at_put(0, (jlong) fd.access_flags().as_int());
info->long_at_put(1, (jlong) fd.offset());
oop field_holder = CompilerToVM::get_jvmci_type(fd.field_holder(), CHECK_NULL);
return JNIHandles::make_local(THREAD, field_holder);
C2V_END
C2V_VMENTRY(jint, getVtableIndexForInterfaceMethod, (JNIEnv *, jobject, jobject jvmci_type, jobject jvmci_method))
ResourceMark rm;
Klass* klass = CompilerToVM::asKlass(jvmci_type);
Method* method = CompilerToVM::asMethod(jvmci_method);
if (klass->is_interface()) {
THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Interface %s should be handled in Java code", klass->external_name()));
}
if (!method->method_holder()->is_interface()) {
THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Method %s is not held by an interface, this case should be handled in Java code", method->name_and_sig_as_C_string()));
}
if (!InstanceKlass::cast(klass)->is_initialized()) {
THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Class %s must be initialized", klass->external_name()));
}
return LinkResolver::vtable_index_of_interface_method(klass, method);
C2V_END
C2V_VMENTRY(jobject, resolveMethod, (JNIEnv *, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type))
Klass* recv_klass = CompilerToVM::asKlass(receiver_jvmci_type);
Klass* caller_klass = CompilerToVM::asKlass(caller_jvmci_type);
Method* method = CompilerToVM::asMethod(jvmci_method);
if (recv_klass->oop_is_array() || (InstanceKlass::cast(recv_klass)->is_linked())) {
Klass* holder_klass = method->method_holder();
Symbol* method_name = method->name();
Symbol* method_signature = method->signature();
if (holder_klass->is_interface()) {
// do link-time resolution to check all access rules.
LinkInfo link_info(holder_klass, method_name, method_signature, caller_klass, true);
methodHandle resolved_method = LinkResolver::linktime_resolve_interface_method_or_null(link_info);
if (resolved_method.is_null() || resolved_method->is_private()) {
return NULL;
}
assert(recv_klass->is_subtype_of(holder_klass), "");
// do actual lookup
methodHandle sel_method = LinkResolver::lookup_instance_method_in_klasses(recv_klass, resolved_method->name(), resolved_method->signature(), CHECK_AND_CLEAR_0);
oop result = CompilerToVM::get_jvmci_method(sel_method, CHECK_NULL);
return JNIHandles::make_local(THREAD, result);
} else {
// do link-time resolution to check all access rules.
LinkInfo link_info(holder_klass, method_name, method_signature, caller_klass, true);
methodHandle resolved_method = LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
if (resolved_method.is_null()) {
return NULL;
}
// do actual lookup (see LinkResolver::runtime_resolve_virtual_method)
int vtable_index = Method::invalid_vtable_index;
Method* selected_method;
if (resolved_method->method_holder()->is_interface()) { // miranda method
vtable_index = LinkResolver::vtable_index_of_interface_method(holder_klass, resolved_method);
assert(vtable_index >= 0 , "we should have valid vtable index at this point");
InstanceKlass* inst = InstanceKlass::cast(recv_klass);
selected_method = inst->method_at_vtable(vtable_index);
} else {
// at this point we are sure that resolved_method is virtual and not
// a miranda method; therefore, it must have a valid vtable index.
assert(!resolved_method->has_itable_index(), "");
vtable_index = resolved_method->vtable_index();
// We could get a negative vtable_index for final methods,
// because as an optimization they are they are never put in the vtable,
// unless they override an existing method.
// If we do get a negative, it means the resolved method is the the selected
// method, and it can never be changed by an override.
if (vtable_index == Method::nonvirtual_vtable_index) {
assert(resolved_method->can_be_statically_bound(), "cannot override this method");
selected_method = resolved_method();
} else {
// recv_klass might be an arrayKlassOop but all vtables start at
// the same place. The cast is to avoid virtual call and assertion.
InstanceKlass* inst = (InstanceKlass*)recv_klass;
selected_method = inst->method_at_vtable(vtable_index);
}
}
oop result = CompilerToVM::get_jvmci_method(selected_method, CHECK_NULL);
return JNIHandles::make_local(THREAD, result);
}
}
return NULL;
C2V_END
C2V_VMENTRY(jboolean, hasFinalizableSubclass,(JNIEnv *, jobject, jobject jvmci_type))
Klass* klass = CompilerToVM::asKlass(jvmci_type);
assert(klass != NULL, "method must not be called for primitive types");
return Dependencies::find_finalizable_subclass(klass) != NULL;
C2V_END
C2V_VMENTRY(jobject, getClassInitializer, (JNIEnv *, jobject, jobject jvmci_type))
InstanceKlass* klass = (InstanceKlass*) CompilerToVM::asKlass(jvmci_type);
oop result = CompilerToVM::get_jvmci_method(klass->class_initializer(), CHECK_NULL);
return JNIHandles::make_local(THREAD, result);
C2V_END
C2V_VMENTRY(jlong, getMaxCallTargetOffset, (JNIEnv*, jobject, jlong addr))
address target_addr = (address) addr;
if (target_addr != 0x0) {
int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
return MAX2(ABS(off_low), ABS(off_high));
}
return -1;
C2V_END
C2V_VMENTRY(void, doNotInlineOrCompile,(JNIEnv *, jobject, jobject jvmci_method))
methodHandle method = CompilerToVM::asMethod(jvmci_method);
method->set_not_c1_compilable();
method->set_not_c2_compilable();
method->set_dont_inline(true);
C2V_END
C2V_VMENTRY(jint, installCode, (JNIEnv *jniEnv, jobject, jobject target, jobject compiled_code, jobject installed_code, jobject speculation_log))
ResourceMark rm;
HandleMark hm;
Handle target_handle = JNIHandles::resolve(target);
Handle compiled_code_handle = JNIHandles::resolve(compiled_code);
CodeBlob* cb = NULL;
Handle installed_code_handle = JNIHandles::resolve(installed_code);
Handle speculation_log_handle = JNIHandles::resolve(speculation_log);
JVMCICompiler* compiler = JVMCICompiler::instance(CHECK_JNI_ERR);
TraceTime install_time("installCode", JVMCICompiler::codeInstallTimer());
CodeInstaller installer;
JVMCIEnv::CodeInstallResult result = installer.install(compiler, target_handle, compiled_code_handle, cb, installed_code_handle, speculation_log_handle);
if (PrintCodeCacheOnCompilation) {
stringStream s;
// Dump code cache into a buffer before locking the tty,
{
MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
CodeCache::print_summary(&s, false);
}
ttyLocker ttyl;
tty->print_raw_cr(s.as_string());
}
if (result != JVMCIEnv::ok) {
assert(cb == NULL, "should be");
} else {
if (!installed_code_handle.is_null()) {
assert(installed_code_handle->is_a(InstalledCode::klass()), "wrong type");
InstalledCode::set_address(installed_code_handle, (jlong) cb);
InstalledCode::set_version(installed_code_handle, InstalledCode::version(installed_code_handle) + 1);
if (installed_code_handle->is_a(HotSpotInstalledCode::klass())) {
HotSpotInstalledCode::set_size(installed_code_handle, cb->size());
HotSpotInstalledCode::set_codeStart(installed_code_handle, (jlong) cb->code_begin());
HotSpotInstalledCode::set_codeSize(installed_code_handle, cb->code_size());
}
nmethod* nm = cb->as_nmethod_or_null();
if (nm != NULL && installed_code_handle->is_scavengable()) {
assert(nm->detect_scavenge_root_oops(), "nm should be scavengable if installed_code is scavengable");
if (!UseG1GC) {
assert(nm->on_scavenge_root_list(), "nm should be on scavengable list");
}
}
}
}
return result;
C2V_END
C2V_VMENTRY(jint, getMetadata, (JNIEnv *jniEnv, jobject, jobject target, jobject compiled_code, jobject metadata))
ResourceMark rm;
HandleMark hm;
Handle target_handle = JNIHandles::resolve(target);
Handle compiled_code_handle = JNIHandles::resolve(compiled_code);
Handle metadata_handle = JNIHandles::resolve(metadata);
HotSpotOopMap::klass()->initialize(thread);
CodeMetadata code_metadata;
CodeBlob *cb = NULL;
CodeInstaller installer;
JVMCIEnv::CodeInstallResult result = installer.gather_metadata(target_handle, compiled_code_handle, code_metadata); //cb, pc_descs, nr_pc_descs, scopes_descs, scopes_size, reloc_buffer);
if (result != JVMCIEnv::ok) {
return result;
}
if (code_metadata.get_nr_pc_desc() > 0) {
typeArrayHandle pcArrayOop = oopFactory::new_byteArray(sizeof(PcDesc) * code_metadata.get_nr_pc_desc(), CHECK_(JVMCIEnv::cache_full));
memcpy(pcArrayOop->byte_at_addr(0), code_metadata.get_pc_desc(), sizeof(PcDesc) * code_metadata.get_nr_pc_desc());
HotSpotMetaData::set_pcDescBytes(metadata_handle, pcArrayOop());
}
if (code_metadata.get_scopes_size() > 0) {
typeArrayHandle scopesArrayOop = oopFactory::new_byteArray(code_metadata.get_scopes_size(), CHECK_(JVMCIEnv::cache_full));
memcpy(scopesArrayOop->byte_at_addr(0), code_metadata.get_scopes_desc(), code_metadata.get_scopes_size());
HotSpotMetaData::set_scopesDescBytes(metadata_handle, scopesArrayOop());
}
RelocBuffer* reloc_buffer = code_metadata.get_reloc_buffer();
typeArrayHandle relocArrayOop = oopFactory::new_byteArray((int) reloc_buffer->size(), CHECK_(JVMCIEnv::cache_full));
if (reloc_buffer->size() > 0) {
memcpy(relocArrayOop->byte_at_addr(0), reloc_buffer->begin(), reloc_buffer->size());
}
HotSpotMetaData::set_relocBytes(metadata_handle, relocArrayOop());
const OopMapSet* oopMapSet = installer.oopMapSet();
{
ResourceMark mark;
ImmutableOopMapBuilder builder(oopMapSet);
int oopmap_size = builder.heap_size();
typeArrayHandle oopMapArrayHandle = oopFactory::new_byteArray(oopmap_size, CHECK_(JVMCIEnv::cache_full));
builder.generate_into((address) oopMapArrayHandle->byte_at_addr(0));
HotSpotMetaData::set_oopMaps(metadata_handle, oopMapArrayHandle());
}
HotSpotMetaData::set_metadata(metadata_handle, NULL);
ExceptionHandlerTable* handler = code_metadata.get_exception_table();
int table_size = handler->size_in_bytes();
typeArrayHandle exceptionArrayOop = oopFactory::new_byteArray(table_size, CHECK_(JVMCIEnv::cache_full));
if (table_size > 0) {
handler->copy_bytes_to((address) exceptionArrayOop->byte_at_addr(0));
}
HotSpotMetaData::set_exceptionBytes(metadata_handle, exceptionArrayOop());
return result;
C2V_END
C2V_VMENTRY(void, notifyCompilationStatistics, (JNIEnv *jniEnv, jobject, jint id, jobject hotspot_method, jboolean osr, jint processedBytecodes, jlong time, jlong timeUnitsPerSecond, jobject installed_code))
JVMCICompiler* compiler = JVMCICompiler::instance(CHECK);
CompilerStatistics* stats = compiler->stats();
elapsedTimer timer = elapsedTimer(time, timeUnitsPerSecond);
if (osr) {
stats->_osr.update(timer, processedBytecodes);
} else {
stats->_standard.update(timer, processedBytecodes);
}
Handle installed_code_handle = JNIHandles::resolve(installed_code);
if (installed_code_handle->is_a(HotSpotInstalledCode::klass())) {
stats->_nmethods_size += HotSpotInstalledCode::size(installed_code_handle);
stats->_nmethods_code_size += HotSpotInstalledCode::codeSize(installed_code_handle);
}
if (CITimeEach) {
methodHandle method = CompilerToVM::asMethod(hotspot_method);
float bytes_per_sec = 1.0 * processedBytecodes / timer.seconds();
tty->print_cr("%3d seconds: %f bytes/sec: %f (bytes %d)",
id, timer.seconds(), bytes_per_sec, processedBytecodes);
}
C2V_END
C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv *jniEnv, jobject))
JVMCICompiler* compiler = JVMCICompiler::instance(CHECK);
CompilerStatistics* stats = compiler->stats();
stats->_standard.reset();
stats->_osr.reset();
C2V_END
C2V_VMENTRY(jobject, disassembleCodeBlob, (JNIEnv *jniEnv, jobject, jlong codeBlob))
ResourceMark rm;
HandleMark hm;
CodeBlob* cb = (CodeBlob*) (address) codeBlob;
if (cb == NULL) {
return NULL;
}
// We don't want the stringStream buffer to resize during disassembly as it
// uses scoped resource memory. If a nested function called during disassembly uses
// a ResourceMark and the buffer expands within the scope of the mark,
// the buffer becomes garbage when that scope is exited. Experience shows that
// the disassembled code is typically about 10x the code size so a fixed buffer
// sized to 20x code size plus a fixed amount for header info should be sufficient.
int bufferSize = cb->code_size() * 20 + 1024;
char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
stringStream st(buffer, bufferSize);
if (cb->is_nmethod()) {
nmethod* nm = (nmethod*) cb;
if (!nm->is_alive()) {
return NULL;
}
Disassembler::decode(nm, &st);
} else {
Disassembler::decode(cb, &st);
}
if (st.size() <= 0) {
return NULL;
}
Handle result = java_lang_String::create_from_platform_dependent_str(st.as_string(), CHECK_NULL);
return JNIHandles::make_local(THREAD, result());
C2V_END
C2V_VMENTRY(jobject, getStackTraceElement, (JNIEnv*, jobject, jobject jvmci_method, int bci))
ResourceMark rm;
HandleMark hm;
methodHandle method = CompilerToVM::asMethod(jvmci_method);
oop element = java_lang_StackTraceElement::create(method, bci, CHECK_NULL);
return JNIHandles::make_local(THREAD, element);
C2V_END
C2V_VMENTRY(jobject, executeInstalledCode, (JNIEnv*, jobject, jobject args, jobject hotspotInstalledCode))
ResourceMark rm;
HandleMark hm;
jlong nmethodValue = InstalledCode::address(hotspotInstalledCode);
if (nmethodValue == 0L) {
THROW_NULL(vmSymbols::jdk_vm_ci_code_InvalidInstalledCodeException());
}
nmethod* nm = (nmethod*) (address) nmethodValue;
methodHandle mh = nm->method();
Symbol* signature = mh->signature();
JavaCallArguments jca(mh->size_of_parameters());
JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
JavaValue result(jap.get_ret_type());
jca.set_alternative_target(nm);
JavaCalls::call(&result, mh, &jca, CHECK_NULL);
if (jap.get_ret_type() == T_VOID) {
return NULL;
} else if (jap.get_ret_type() == T_OBJECT || jap.get_ret_type() == T_ARRAY) {
return JNIHandles::make_local(THREAD, (oop) result.get_jobject());
} else {
jvalue *value = (jvalue *) result.get_value_addr();
// Narrow the value down if required (Important on big endian machines)
switch (jap.get_ret_type()) {
case T_BOOLEAN:
value->z = (jboolean) value->i;
break;
case T_BYTE:
value->b = (jbyte) value->i;
break;
case T_CHAR:
value->c = (jchar) value->i;
break;
case T_SHORT:
value->s = (jshort) value->i;
break;
}
oop o = java_lang_boxing_object::create(jap.get_ret_type(), value, CHECK_NULL);
return JNIHandles::make_local(THREAD, o);
}
C2V_END
C2V_VMENTRY(jlongArray, getLineNumberTable, (JNIEnv *, jobject, jobject jvmci_method))
Method* method = CompilerToVM::asMethod(jvmci_method);
if (!method->has_linenumber_table()) {
return NULL;
}
u2 num_entries = 0;
CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table());
while (streamForSize.read_pair()) {
num_entries++;
}
CompressedLineNumberReadStream stream(method->compressed_linenumber_table());
typeArrayOop result = oopFactory::new_longArray(2 * num_entries, CHECK_NULL);
int i = 0;
jlong value;
while (stream.read_pair()) {
value = ((long) stream.bci());
result->long_at_put(i, value);
value = ((long) stream.line());
result->long_at_put(i + 1, value);
i += 2;
}
return (jlongArray) JNIHandles::make_local(THREAD, result);
C2V_END
C2V_VMENTRY(jlong, getLocalVariableTableStart, (JNIEnv *, jobject, jobject jvmci_method))
ResourceMark rm;
Method* method = CompilerToVM::asMethod(jvmci_method);
if (!method->has_localvariable_table()) {
return 0;
}
return (jlong) (address) method->localvariable_table_start();
C2V_END
C2V_VMENTRY(jint, getLocalVariableTableLength, (JNIEnv *, jobject, jobject jvmci_method))
ResourceMark rm;
Method* method = CompilerToVM::asMethod(jvmci_method);
return method->localvariable_table_length();
C2V_END
C2V_VMENTRY(void, reprofile, (JNIEnv*, jobject, jobject jvmci_method))
Method* method = CompilerToVM::asMethod(jvmci_method);
MethodCounters* mcs = method->method_counters();
if (mcs != NULL) {
mcs->clear_counters();
}
NOT_PRODUCT(method->set_compiled_invocation_count(0));
nmethod* code = method->code();
if (code != NULL) {
code->make_not_entrant();
}
MethodData* method_data = method->method_data();
if (method_data == NULL) {
ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
method_data = MethodData::allocate(loader_data, method, CHECK);
method->set_method_data(method_data);
} else {
method_data->initialize();
}
C2V_END
C2V_VMENTRY(void, invalidateInstalledCode, (JNIEnv*, jobject, jobject hotspotInstalledCode))
jlong nativeMethod = InstalledCode::address(hotspotInstalledCode);
nmethod* m = (nmethod*)nativeMethod;
if (m != NULL && !m->is_not_entrant()) {
m->mark_for_deoptimization();
VM_Deoptimize op;
VMThread::execute(&op);
}
InstalledCode::set_address(hotspotInstalledCode, 0);
C2V_END
C2V_VMENTRY(jobject, readUncompressedOop, (JNIEnv*, jobject, jlong addr))
oop ret = oopDesc::load_decode_heap_oop((oop*)(address)addr);
return JNIHandles::make_local(THREAD, ret);
C2V_END
C2V_VMENTRY(jlongArray, collectCounters, (JNIEnv*, jobject))
typeArrayOop arrayOop = oopFactory::new_longArray(JVMCICounterSize, CHECK_NULL);
JavaThread::collect_counters(arrayOop);
return (jlongArray) JNIHandles::make_local(THREAD, arrayOop);
C2V_END
C2V_VMENTRY(int, allocateCompileId, (JNIEnv*, jobject, jobject jvmci_method, int entry_bci))
HandleMark hm;
ResourceMark rm;
if (JNIHandles::resolve(jvmci_method) == NULL) {
THROW_0(vmSymbols::java_lang_NullPointerException());
}
Method* method = CompilerToVM::asMethod(jvmci_method);
if (entry_bci >= method->code_size() || entry_bci < -1) {
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), err_msg("Unexpected bci %d", entry_bci));
}
return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
C2V_END
C2V_VMENTRY(jboolean, isMature, (JNIEnv*, jobject, jlong metaspace_method_data))
MethodData* mdo = CompilerToVM::asMethodData(metaspace_method_data);
return mdo != NULL && mdo->is_mature();
C2V_END
C2V_VMENTRY(jboolean, hasCompiledCodeForOSR, (JNIEnv*, jobject, jobject jvmci_method, int entry_bci, int comp_level))
Method* method = CompilerToVM::asMethod(jvmci_method);
return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != NULL;
C2V_END
C2V_VMENTRY(jobject, getSymbol, (JNIEnv*, jobject, jlong symbol))
Handle sym = java_lang_String::create_from_symbol((Symbol*)(address)symbol, CHECK_NULL);
return JNIHandles::make_local(THREAD, sym());
C2V_END
bool matches(jobjectArray methods, Method* method) {
objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
for (int i = 0; i < methods_oop->length(); i++) {
if (CompilerToVM::asMethod(methods_oop->obj_at(i)) == method) {
return true;
}
}
return false;
}
C2V_VMENTRY(jobject, getNextStackFrame, (JNIEnv*, jobject compilerToVM, jobject hs_frame, jobjectArray methods, jint initialSkip))
ResourceMark rm;
if (!thread->has_last_Java_frame()) return NULL;
Handle result = HotSpotStackFrameReference::klass()->allocate_instance(thread);
HotSpotStackFrameReference::klass()->initialize(thread);
StackFrameStream fst(thread);
if (hs_frame != NULL) {
// look for the correct stack frame if one is given
intptr_t* stack_pointer = (intptr_t*) HotSpotStackFrameReference::stackPointer(hs_frame);
while (fst.current()->sp() != stack_pointer && !fst.is_done()) {
fst.next();
}
if (fst.current()->sp() != stack_pointer) {
THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "stack frame not found")
}
}
int frame_number = 0;
vframe* vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
if (hs_frame != NULL) {
// look for the correct vframe within the stack frame if one is given
int last_frame_number = HotSpotStackFrameReference::frameNumber(hs_frame);
while (frame_number < last_frame_number) {
if (vf->is_top()) {
THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "invalid frame number")
}
vf = vf->sender();
frame_number ++;
}
// move one frame forward
if (vf->is_top()) {
if (fst.is_done()) {
return NULL;
}
fst.next();
vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
frame_number = 0;
} else {
vf = vf->sender();
frame_number++;
}
}
while (true) {
// look for the given method
while (true) {
StackValueCollection* locals = NULL;
if (vf->is_compiled_frame()) {
// compiled method frame
compiledVFrame* cvf = compiledVFrame::cast(vf);
if (methods == NULL || matches(methods, cvf->method())) {
if (initialSkip > 0) {
initialSkip --;
} else {
ScopeDesc* scope = cvf->scope();
// native wrapper do not have a scope
if (scope != NULL && scope->objects() != NULL) {
bool realloc_failures = Deoptimization::realloc_objects(thread, fst.current(), scope->objects(), THREAD);
Deoptimization::reassign_fields(fst.current(), fst.register_map(), scope->objects(), realloc_failures, false);
GrowableArray<ScopeValue*>* local_values = scope->locals();
typeArrayHandle array = oopFactory::new_boolArray(local_values->length(), thread);
for (int i = 0; i < local_values->length(); i++) {
ScopeValue* value = local_values->at(i);
if (value->is_object()) {
array->bool_at_put(i, true);
}
}
HotSpotStackFrameReference::set_localIsVirtual(result, array());
} else {
HotSpotStackFrameReference::set_localIsVirtual(result, NULL);
}
locals = cvf->locals();
HotSpotStackFrameReference::set_bci(result, cvf->bci());
oop method = CompilerToVM::get_jvmci_method(cvf->method(), CHECK_NULL);
HotSpotStackFrameReference::set_method(result, method);
}
}
} else if (vf->is_interpreted_frame()) {
// interpreted method frame
interpretedVFrame* ivf = interpretedVFrame::cast(vf);
if (methods == NULL || matches(methods, ivf->method())) {
if (initialSkip > 0) {
initialSkip --;
} else {
locals = ivf->locals();
HotSpotStackFrameReference::set_bci(result, ivf->bci());
oop method = CompilerToVM::get_jvmci_method(ivf->method(), CHECK_NULL);
HotSpotStackFrameReference::set_method(result, method);
HotSpotStackFrameReference::set_localIsVirtual(result, NULL);
}
}
}
// locals != NULL means that we found a matching frame and result is already partially initialized
if (locals != NULL) {
HotSpotStackFrameReference::set_compilerToVM(result, JNIHandles::resolve(compilerToVM));
HotSpotStackFrameReference::set_stackPointer(result, (jlong) fst.current()->sp());
HotSpotStackFrameReference::set_frameNumber(result, frame_number);
// initialize the locals array
objArrayHandle array = oopFactory::new_objectArray(locals->size(), thread);
for (int i = 0; i < locals->size(); i++) {
StackValue* var = locals->at(i);
if (var->type() == T_OBJECT) {
array->obj_at_put(i, locals->at(i)->get_obj()());
}
}
HotSpotStackFrameReference::set_locals(result, array());
return JNIHandles::make_local(thread, result());
}
if (vf->is_top()) {
break;
}
frame_number++;
vf = vf->sender();
} // end of vframe loop
if (fst.is_done()) {
break;
}
fst.next();
vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
frame_number = 0;
} // end of frame loop
// the end was reached without finding a matching method
return NULL;
C2V_END
C2V_VMENTRY(void, resolveInvokeDynamicInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
CallInfo callInfo;
LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokedynamic, CHECK);
ConstantPoolCacheEntry* cp_cache_entry = cp->invokedynamic_cp_cache_entry_at(index);
cp_cache_entry->set_dynamic_call(cp, callInfo);
C2V_END
C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
CallInfo callInfo;
LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
ConstantPoolCacheEntry* cp_cache_entry = cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
cp_cache_entry->set_method_handle(cp, callInfo);
C2V_END
C2V_VMENTRY(jboolean, shouldDebugNonSafepoints, (JNIEnv*, jobject))
//see compute_recording_non_safepoints in debugInfroRec.cpp
if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) {
return true;
}
return DebugNonSafepoints;
C2V_END
// public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv*, jobject, jobject hs_frame, bool invalidate))
ResourceMark rm;
if (hs_frame == NULL) {
THROW_MSG(vmSymbols::java_lang_NullPointerException(), "stack frame is null")
}
HotSpotStackFrameReference::klass()->initialize(thread);
// look for the given stack frame
StackFrameStream fst(thread);
intptr_t* stack_pointer = (intptr_t*) HotSpotStackFrameReference::stackPointer(hs_frame);
while (fst.current()->sp() != stack_pointer && !fst.is_done()) {
fst.next();
}
if (fst.current()->sp() != stack_pointer) {
THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found")
}
if (invalidate) {
if (!fst.current()->is_compiled_frame()) {
THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
}
assert(fst.current()->cb()->is_nmethod(), "nmethod expected");
((nmethod*) fst.current()->cb())->make_not_entrant();
}
Deoptimization::deoptimize(thread, *fst.current(), fst.register_map(), Deoptimization::Reason_none);
// look for the frame again as it has been updated by deopt (pc, deopt state...)
StackFrameStream fstAfterDeopt(thread);
while (fstAfterDeopt.current()->sp() != stack_pointer && !fstAfterDeopt.is_done()) {
fstAfterDeopt.next();
}
if (fstAfterDeopt.current()->sp() != stack_pointer) {
THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
}
vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread);
if (!vf->is_compiled_frame()) {
THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
}
GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10);
while (true) {
assert(vf->is_compiled_frame(), "Wrong frame type");
virtualFrames->push(compiledVFrame::cast(vf));
if (vf->is_top()) {
break;
}
vf = vf->sender();
}
int last_frame_number = HotSpotStackFrameReference::frameNumber(hs_frame);
if (last_frame_number >= virtualFrames->length()) {
THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "invalid frame number")
}
// Reallocate the non-escaping objects and restore their fields.
assert (virtualFrames->at(last_frame_number)->scope() != NULL,"invalid scope");
GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
if (objects == NULL) {
// no objects to materialize
return;
}
bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), objects, THREAD);
Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false);
for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
compiledVFrame* cvf = virtualFrames->at(frame_index);
GrowableArray<ScopeValue*>* scopeLocals = cvf->scope()->locals();
StackValueCollection* locals = cvf->locals();
if (locals != NULL) {
for (int i2 = 0; i2 < locals->size(); i2++) {
StackValue* var = locals->at(i2);
if (var->type() == T_OBJECT && scopeLocals->at(i2)->is_object()) {
jvalue val;
val.l = (jobject) locals->at(i2)->get_obj()();
cvf->update_local(T_OBJECT, i2, val);
}
}
}
}
// all locals are materialized by now
HotSpotStackFrameReference::set_localIsVirtual(hs_frame, NULL);
// update the locals array
objArrayHandle array = HotSpotStackFrameReference::locals(hs_frame);
StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals();
for (int i = 0; i < locals->size(); i++) {
StackValue* var = locals->at(i);
if (var->type() == T_OBJECT) {
array->obj_at_put(i, locals->at(i)->get_obj()());
}
}
C2V_END
C2V_VMENTRY(void, writeDebugOutput, (JNIEnv*, jobject, jbyteArray bytes, jint offset, jint length))
if (bytes == NULL) {
THROW(vmSymbols::java_lang_NullPointerException());
}
typeArrayOop array = (typeArrayOop) JNIHandles::resolve(bytes);
// Check if offset and length are non negative.
if (offset < 0 || length < 0) {
THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
}
// Check if the range is valid.
if ((((unsigned int) length + (unsigned int) offset) > (unsigned int) array->length())) {
THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
}
while (length > 0) {
jbyte* start = array->byte_at_addr(offset);
tty->write((char*) start, MIN2(length, O_BUFLEN));
length -= O_BUFLEN;
offset += O_BUFLEN;
}
C2V_END
C2V_VMENTRY(void, flushDebugOutput, (JNIEnv*, jobject))
tty->flush();
C2V_END
#define CC (char*) /*cast a literal from (const char*)*/
#define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
#define SPECULATION_LOG "Ljdk/vm/ci/meta/SpeculationLog;"
#define STRING "Ljava/lang/String;"
#define OBJECT "Ljava/lang/Object;"
#define CLASS "Ljava/lang/Class;"
#define STACK_TRACE_ELEMENT "Ljava/lang/StackTraceElement;"
#define INSTALLED_CODE "Ljdk/vm/ci/code/InstalledCode;"
#define TARGET_DESCRIPTION "Ljdk/vm/ci/code/TargetDescription;"
#define RESOLVED_METHOD "Ljdk/vm/ci/meta/ResolvedJavaMethod;"
#define HS_RESOLVED_METHOD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;"
#define HS_RESOLVED_KLASS "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;"
#define HS_CONSTANT_POOL "Ljdk/vm/ci/hotspot/HotSpotConstantPool;"
#define HS_COMPILED_CODE "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;"
#define HS_METADATA "Ljdk/vm/ci/hotspot/HotSpotMetaData;"
#define HS_STACK_FRAME_REF "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;"
#define METASPACE_METHOD_DATA "J"
JNINativeMethod CompilerToVM::methods[] = {
{CC"getBytecode", CC"("HS_RESOLVED_METHOD")[B", FN_PTR(getBytecode)},
{CC"getExceptionTableStart", CC"("HS_RESOLVED_METHOD")J", FN_PTR(getExceptionTableStart)},
{CC"getExceptionTableLength", CC"("HS_RESOLVED_METHOD")I", FN_PTR(getExceptionTableLength)},
{CC"findUniqueConcreteMethod", CC"("HS_RESOLVED_KLASS HS_RESOLVED_METHOD")"HS_RESOLVED_METHOD, FN_PTR(findUniqueConcreteMethod)},
{CC"getImplementor", CC"("HS_RESOLVED_KLASS")"HS_RESOLVED_KLASS, FN_PTR(getImplementor)},
{CC"getStackTraceElement", CC"("HS_RESOLVED_METHOD"I)"STACK_TRACE_ELEMENT, FN_PTR(getStackTraceElement)},
{CC"methodIsIgnoredBySecurityStackWalk", CC"("HS_RESOLVED_METHOD")Z", FN_PTR(methodIsIgnoredBySecurityStackWalk)},
{CC"doNotInlineOrCompile", CC"("HS_RESOLVED_METHOD")V", FN_PTR(doNotInlineOrCompile)},
{CC"canInlineMethod", CC"("HS_RESOLVED_METHOD")Z", FN_PTR(canInlineMethod)},
{CC"shouldInlineMethod", CC"("HS_RESOLVED_METHOD")Z", FN_PTR(shouldInlineMethod)},
{CC"lookupType", CC"("STRING CLASS"Z)"HS_RESOLVED_KLASS, FN_PTR(lookupType)},
{CC"lookupNameInPool", CC"("HS_CONSTANT_POOL"I)"STRING, FN_PTR(lookupNameInPool)},
{CC"lookupNameAndTypeRefIndexInPool", CC"("HS_CONSTANT_POOL"I)I", FN_PTR(lookupNameAndTypeRefIndexInPool)},
{CC"lookupSignatureInPool", CC"("HS_CONSTANT_POOL"I)"STRING, FN_PTR(lookupSignatureInPool)},
{CC"lookupKlassRefIndexInPool", CC"("HS_CONSTANT_POOL"I)I", FN_PTR(lookupKlassRefIndexInPool)},
{CC"lookupKlassInPool", CC"("HS_CONSTANT_POOL"I)Ljava/lang/Object;", FN_PTR(lookupKlassInPool)},
{CC"lookupAppendixInPool", CC"("HS_CONSTANT_POOL"I)"OBJECT, FN_PTR(lookupAppendixInPool)},
{CC"lookupMethodInPool", CC"("HS_CONSTANT_POOL"IB)"HS_RESOLVED_METHOD, FN_PTR(lookupMethodInPool)},
{CC"constantPoolRemapInstructionOperandFromCache", CC"("HS_CONSTANT_POOL"I)I", FN_PTR(constantPoolRemapInstructionOperandFromCache)},
{CC"resolveConstantInPool", CC"("HS_CONSTANT_POOL"I)"OBJECT, FN_PTR(resolveConstantInPool)},
{CC"resolvePossiblyCachedConstantInPool", CC"("HS_CONSTANT_POOL"I)"OBJECT, FN_PTR(resolvePossiblyCachedConstantInPool)},
{CC"resolveTypeInPool", CC"("HS_CONSTANT_POOL"I)"HS_RESOLVED_KLASS, FN_PTR(resolveTypeInPool)},
{CC"resolveFieldInPool", CC"("HS_CONSTANT_POOL"IB[J)"HS_RESOLVED_KLASS, FN_PTR(resolveFieldInPool)},
{CC"resolveInvokeDynamicInPool", CC"("HS_CONSTANT_POOL"I)V", FN_PTR(resolveInvokeDynamicInPool)},
{CC"resolveInvokeHandleInPool", CC"("HS_CONSTANT_POOL"I)V", FN_PTR(resolveInvokeHandleInPool)},
{CC"resolveMethod", CC"("HS_RESOLVED_KLASS HS_RESOLVED_METHOD HS_RESOLVED_KLASS")"HS_RESOLVED_METHOD, FN_PTR(resolveMethod)},
{CC"getVtableIndexForInterfaceMethod", CC"("HS_RESOLVED_KLASS HS_RESOLVED_METHOD")I", FN_PTR(getVtableIndexForInterfaceMethod)},
{CC"getClassInitializer", CC"("HS_RESOLVED_KLASS")"HS_RESOLVED_METHOD, FN_PTR(getClassInitializer)},
{CC"hasFinalizableSubclass", CC"("HS_RESOLVED_KLASS")Z", FN_PTR(hasFinalizableSubclass)},
{CC"getMaxCallTargetOffset", CC"(J)J", FN_PTR(getMaxCallTargetOffset)},
{CC"getResolvedJavaMethodAtSlot", CC"("CLASS"I)"HS_RESOLVED_METHOD, FN_PTR(getResolvedJavaMethodAtSlot)},
{CC"getResolvedJavaMethod", CC"(Ljava/lang/Object;J)"HS_RESOLVED_METHOD, FN_PTR(getResolvedJavaMethod)},
{CC"getConstantPool", CC"(Ljava/lang/Object;J)"HS_CONSTANT_POOL, FN_PTR(getConstantPool)},
{CC"getResolvedJavaType", CC"(Ljava/lang/Object;JZ)"HS_RESOLVED_KLASS, FN_PTR(getResolvedJavaType)},
{CC"initializeConfiguration", CC"()J", FN_PTR(initializeConfiguration)},
{CC"installCode", CC"("TARGET_DESCRIPTION HS_COMPILED_CODE INSTALLED_CODE SPECULATION_LOG")I", FN_PTR(installCode)},
{CC"getMetadata", CC"("TARGET_DESCRIPTION HS_COMPILED_CODE HS_METADATA")I", FN_PTR(getMetadata)},
{CC"notifyCompilationStatistics", CC"(I"HS_RESOLVED_METHOD"ZIJJ"INSTALLED_CODE")V", FN_PTR(notifyCompilationStatistics)},
{CC"resetCompilationStatistics", CC"()V", FN_PTR(resetCompilationStatistics)},
{CC"disassembleCodeBlob", CC"(J)"STRING, FN_PTR(disassembleCodeBlob)},
{CC"executeInstalledCode", CC"(["OBJECT INSTALLED_CODE")"OBJECT, FN_PTR(executeInstalledCode)},
{CC"getLineNumberTable", CC"("HS_RESOLVED_METHOD")[J", FN_PTR(getLineNumberTable)},
{CC"getLocalVariableTableStart", CC"("HS_RESOLVED_METHOD")J", FN_PTR(getLocalVariableTableStart)},
{CC"getLocalVariableTableLength", CC"("HS_RESOLVED_METHOD")I", FN_PTR(getLocalVariableTableLength)},
{CC"reprofile", CC"("HS_RESOLVED_METHOD")V", FN_PTR(reprofile)},
{CC"invalidateInstalledCode", CC"("INSTALLED_CODE")V", FN_PTR(invalidateInstalledCode)},
{CC"readUncompressedOop", CC"(J)"OBJECT, FN_PTR(readUncompressedOop)},
{CC"collectCounters", CC"()[J", FN_PTR(collectCounters)},
{CC"allocateCompileId", CC"("HS_RESOLVED_METHOD"I)I", FN_PTR(allocateCompileId)},
{CC"isMature", CC"("METASPACE_METHOD_DATA")Z", FN_PTR(isMature)},
{CC"hasCompiledCodeForOSR", CC"("HS_RESOLVED_METHOD"II)Z", FN_PTR(hasCompiledCodeForOSR)},
{CC"getSymbol", CC"(J)"STRING, FN_PTR(getSymbol)},
{CC"getNextStackFrame", CC"("HS_STACK_FRAME_REF "["HS_RESOLVED_METHOD"I)"HS_STACK_FRAME_REF, FN_PTR(getNextStackFrame)},
{CC"materializeVirtualObjects", CC"("HS_STACK_FRAME_REF"Z)V", FN_PTR(materializeVirtualObjects)},
{CC"shouldDebugNonSafepoints", CC"()Z", FN_PTR(shouldDebugNonSafepoints)},
{CC"writeDebugOutput", CC"([BII)V", FN_PTR(writeDebugOutput)},
{CC"flushDebugOutput", CC"()V", FN_PTR(flushDebugOutput)},
};
int CompilerToVM::methods_count() {
return sizeof(methods) / sizeof(JNINativeMethod);
}
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