/*
* Copyright (c) 2011, 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.
*/
#ifndef SHARE_JVMCI_JVMCICOMPILERTOVM_HPP
#define SHARE_JVMCI_JVMCICOMPILERTOVM_HPP
#include "jni.h"
#include "runtime/javaCalls.hpp"
#include "jvmci/jvmciJavaClasses.hpp"
// Helper class to ensure that references to Klass* are kept alive for G1
class JVMCIKlassHandle : public StackObj {
private:
Klass* _klass;
Handle _holder;
Thread* _thread;
Klass* klass() const { return _klass; }
Klass* non_null_klass() const { assert(_klass != NULL, "resolving NULL _klass"); return _klass; }
public:
/* Constructors */
JVMCIKlassHandle (Thread* thread) : _klass(NULL), _thread(thread) {}
JVMCIKlassHandle (Thread* thread, Klass* klass);
JVMCIKlassHandle (const JVMCIKlassHandle &h): _klass(h._klass), _holder(h._holder), _thread(h._thread) {}
JVMCIKlassHandle& operator=(const JVMCIKlassHandle &s);
JVMCIKlassHandle& operator=(Klass* klass);
/* Operators for ease of use */
Klass* operator () () const { return klass(); }
Klass* operator -> () const { return non_null_klass(); }
bool operator == (Klass* o) const { return klass() == o; }
bool operator == (const JVMCIKlassHandle& h) const { return klass() == h.klass(); }
/* Null checks */
bool is_null() const { return _klass == NULL; }
bool not_null() const { return _klass != NULL; }
};
class CompilerToVM {
public:
class Data {
friend class JVMCIVMStructs;
private:
static int Klass_vtable_start_offset;
static int Klass_vtable_length_offset;
static int Method_extra_stack_entries;
static address SharedRuntime_ic_miss_stub;
static address SharedRuntime_handle_wrong_method_stub;
static address SharedRuntime_deopt_blob_unpack;
static address SharedRuntime_deopt_blob_uncommon_trap;
static size_t ThreadLocalAllocBuffer_alignment_reserve;
static CollectedHeap* Universe_collectedHeap;
static int Universe_base_vtable_size;
static address Universe_narrow_oop_base;
static int Universe_narrow_oop_shift;
static address Universe_narrow_klass_base;
static int Universe_narrow_klass_shift;
static uintptr_t Universe_verify_oop_mask;
static uintptr_t Universe_verify_oop_bits;
static void* Universe_non_oop_bits;
static bool _supports_inline_contig_alloc;
static HeapWord** _heap_end_addr;
static HeapWord* volatile* _heap_top_addr;
static int _max_oop_map_stack_offset;
static int _fields_annotations_base_offset;
static CardTable::CardValue* cardtable_start_address;
static int cardtable_shift;
static int vm_page_size;
static int sizeof_vtableEntry;
static int sizeof_ExceptionTableElement;
static int sizeof_LocalVariableTableElement;
static int sizeof_ConstantPool;
static int sizeof_narrowKlass;
static int sizeof_arrayOopDesc;
static int sizeof_BasicLock;
static address dsin;
static address dcos;
static address dtan;
static address dexp;
static address dlog;
static address dlog10;
static address dpow;
static address symbol_init;
static address symbol_clinit;
public:
static void initialize(TRAPS);
static int max_oop_map_stack_offset() {
assert(_max_oop_map_stack_offset > 0, "must be initialized");
return Data::_max_oop_map_stack_offset;
}
};
static bool cstring_equals(const char* const& s0, const char* const& s1) {
return strcmp(s0, s1) == 0;
}
static unsigned cstring_hash(const char* const& s) {
int h = 0;
const char* p = s;
while (*p != '\0') {
h = 31 * h + *p;
p++;
}
return h;
}
static JNINativeMethod methods[];
static objArrayHandle initialize_intrinsics(TRAPS);
public:
static int methods_count();
static inline Method* asMethod(jobject jvmci_method) {
return (Method*) (address) HotSpotResolvedJavaMethodImpl::metaspaceMethod(jvmci_method);
}
static inline Method* asMethod(Handle jvmci_method) {
return (Method*) (address) HotSpotResolvedJavaMethodImpl::metaspaceMethod(jvmci_method);
}
static inline Method* asMethod(oop jvmci_method) {
return (Method*) (address) HotSpotResolvedJavaMethodImpl::metaspaceMethod(jvmci_method);
}
static inline ConstantPool* asConstantPool(jobject jvmci_constant_pool) {
return (ConstantPool*) (address) HotSpotConstantPool::metaspaceConstantPool(jvmci_constant_pool);
}
static inline ConstantPool* asConstantPool(Handle jvmci_constant_pool) {
return (ConstantPool*) (address) HotSpotConstantPool::metaspaceConstantPool(jvmci_constant_pool);
}
static inline ConstantPool* asConstantPool(oop jvmci_constant_pool) {
return (ConstantPool*) (address) HotSpotConstantPool::metaspaceConstantPool(jvmci_constant_pool);
}
static inline Klass* asKlass(jobject jvmci_type) {
return java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(jvmci_type));
}
static inline Klass* asKlass(Handle jvmci_type) {
return java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(jvmci_type));
}
static inline Klass* asKlass(oop jvmci_type) {
return java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(jvmci_type));
}
static inline Klass* asKlass(jlong metaspaceKlass) {
return (Klass*) (address) metaspaceKlass;
}
static inline MethodData* asMethodData(jlong metaspaceMethodData) {
return (MethodData*) (address) metaspaceMethodData;
}
static oop get_jvmci_method(const methodHandle& method, TRAPS);
static oop get_jvmci_type(JVMCIKlassHandle& klass, TRAPS);
};
class JavaArgumentUnboxer : public SignatureIterator {
protected:
JavaCallArguments* _jca;
arrayOop _args;
int _index;
Handle next_arg(BasicType expectedType);
public:
JavaArgumentUnboxer(Symbol* signature, JavaCallArguments* jca, arrayOop args, bool is_static) : SignatureIterator(signature) {
this->_return_type = T_ILLEGAL;
_jca = jca;
_index = 0;
_args = args;
if (!is_static) {
_jca->push_oop(next_arg(T_OBJECT));
}
iterate();
assert(_index == args->length(), "arg count mismatch with signature");
}
inline void do_bool() { if (!is_return_type()) _jca->push_int(next_arg(T_BOOLEAN)->bool_field(java_lang_boxing_object::value_offset_in_bytes(T_BOOLEAN))); }
inline void do_char() { if (!is_return_type()) _jca->push_int(next_arg(T_CHAR)->char_field(java_lang_boxing_object::value_offset_in_bytes(T_CHAR))); }
inline void do_short() { if (!is_return_type()) _jca->push_int(next_arg(T_SHORT)->short_field(java_lang_boxing_object::value_offset_in_bytes(T_SHORT))); }
inline void do_byte() { if (!is_return_type()) _jca->push_int(next_arg(T_BYTE)->byte_field(java_lang_boxing_object::value_offset_in_bytes(T_BYTE))); }
inline void do_int() { if (!is_return_type()) _jca->push_int(next_arg(T_INT)->int_field(java_lang_boxing_object::value_offset_in_bytes(T_INT))); }
inline void do_long() { if (!is_return_type()) _jca->push_long(next_arg(T_LONG)->long_field(java_lang_boxing_object::value_offset_in_bytes(T_LONG))); }
inline void do_float() { if (!is_return_type()) _jca->push_float(next_arg(T_FLOAT)->float_field(java_lang_boxing_object::value_offset_in_bytes(T_FLOAT))); }
inline void do_double() { if (!is_return_type()) _jca->push_double(next_arg(T_DOUBLE)->double_field(java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE))); }
inline void do_object() { _jca->push_oop(next_arg(T_OBJECT)); }
inline void do_object(int begin, int end) { if (!is_return_type()) _jca->push_oop(next_arg(T_OBJECT)); }
inline void do_array(int begin, int end) { if (!is_return_type()) _jca->push_oop(next_arg(T_OBJECT)); }
inline void do_void() { }
};
class JNIHandleMark : public StackObj {
public:
JNIHandleMark() { push_jni_handle_block(); }
~JNIHandleMark() { pop_jni_handle_block(); }
private:
static void push_jni_handle_block();
static void pop_jni_handle_block();
};
#endif // SHARE_JVMCI_JVMCICOMPILERTOVM_HPP