0N/A

1879N/A#ifndef SHARE_VM_CODE_CODEBLOB_HPP

1879N/A#define SHARE_VM_CODE_CODEBLOB_HPP

1879N/A

1879N/A#include "asm/codeBuffer.hpp"

1879N/A#include "compiler/oopMap.hpp"

1879N/A#include "runtime/frame.hpp"

1879N/A#include "runtime/handles.hpp"

1879N/A

0N/Aclass DeoptimizationBlob;

0N/A

0N/Aclass CodeBlob VALUE_OBJ_CLASS_SPEC {

0N/A

0N/A friend class VMStructs;

0N/A

0N/A private:

0N/A const char* _name;

0N/A int _size; // total size of CodeBlob in bytes

0N/A int _header_size; // size of header (depends on subclass)

0N/A int _relocation_size; // size of relocation

1668N/A int _content_offset; // offset to where content region begins (this includes consts, insts, stubs)

1668N/A int _code_offset; // offset to where instructions region begins (this includes insts, stubs)

0N/A int _frame_complete_offset; // instruction offsets in [0.._frame_complete_offset) have

0N/A // not finished setting up their frame. Beware of pc's in

0N/A // that range. There is a similar range(s) on returns

0N/A // which we don't detect.

0N/A int _data_offset; // offset to where data region begins

0N/A int _frame_size; // size of stack frame

0N/A OopMapSet* _oop_maps; // OopMap for this CodeBlob

0N/A CodeComments _comments;

0N/A

0N/A friend class OopRecorder;

0N/A

0N/A public:

0N/A // Returns the space needed for CodeBlob

0N/A static unsigned int allocation_size(CodeBuffer* cb, int header_size);

0N/A

0N/A // Creation

0N/A // a) simple CodeBlob

0N/A // frame_complete is the offset from the beginning of the instructions

0N/A // to where the frame setup (from stackwalk viewpoint) is complete.

0N/A CodeBlob(const char* name, int header_size, int size, int frame_complete, int locs_size);

0N/A

0N/A // b) full CodeBlob

0N/A CodeBlob(

0N/A const char* name,

0N/A CodeBuffer* cb,

0N/A int header_size,

0N/A int size,

0N/A int frame_complete,

0N/A int frame_size,

0N/A OopMapSet* oop_maps

0N/A );

0N/A

0N/A // Deletion

0N/A void flush();

0N/A

0N/A // Typing

1299N/A virtual bool is_buffer_blob() const { return false; }

1299N/A virtual bool is_nmethod() const { return false; }

1299N/A virtual bool is_runtime_stub() const { return false; }

1299N/A virtual bool is_deoptimization_stub() const { return false; }

1299N/A virtual bool is_uncommon_trap_stub() const { return false; }

1299N/A virtual bool is_exception_stub() const { return false; }

1299N/A virtual bool is_safepoint_stub() const { return false; }

1299N/A virtual bool is_adapter_blob() const { return false; }

1299N/A virtual bool is_method_handles_adapter_blob() const { return false; }

0N/A

0N/A virtual bool is_compiled_by_c2() const { return false; }

0N/A virtual bool is_compiled_by_c1() const { return false; }

0N/A

1135N/A // Casting

1135N/A nmethod* as_nmethod_or_null() { return is_nmethod() ? (nmethod*) this : NULL; }

1135N/A

0N/A // Boundaries

0N/A address header_begin() const { return (address) this; }

0N/A address header_end() const { return ((address) this) + _header_size; };

0N/A relocInfo* relocation_begin() const { return (relocInfo*) header_end(); };

0N/A relocInfo* relocation_end() const { return (relocInfo*)(header_end() + _relocation_size); }

1668N/A address content_begin() const { return (address) header_begin() + _content_offset; }

1668N/A address content_end() const { return (address) header_begin() + _data_offset; }

1668N/A address code_begin() const { return (address) header_begin() + _code_offset; }

1668N/A address code_end() const { return (address) header_begin() + _data_offset; }

0N/A address data_begin() const { return (address) header_begin() + _data_offset; }

0N/A address data_end() const { return (address) header_begin() + _size; }

0N/A

0N/A // Offsets

0N/A int relocation_offset() const { return _header_size; }

1668N/A int content_offset() const { return _content_offset; }

1668N/A int code_offset() const { return _code_offset; }

0N/A int data_offset() const { return _data_offset; }

0N/A

0N/A // Sizes

0N/A int size() const { return _size; }

0N/A int header_size() const { return _header_size; }

0N/A int relocation_size() const { return (address) relocation_end() - (address) relocation_begin(); }

1668N/A int content_size() const { return content_end() - content_begin(); }

1668N/A int code_size() const { return code_end() - code_begin(); }

1668N/A int data_size() const { return data_end() - data_begin(); }

0N/A

0N/A // Containment

1668N/A bool blob_contains(address addr) const { return header_begin() <= addr && addr < data_end(); }

0N/A bool relocation_contains(relocInfo* addr) const{ return relocation_begin() <= addr && addr < relocation_end(); }

1668N/A bool content_contains(address addr) const { return content_begin() <= addr && addr < content_end(); }

1668N/A bool code_contains(address addr) const { return code_begin() <= addr && addr < code_end(); }

1668N/A bool data_contains(address addr) const { return data_begin() <= addr && addr < data_end(); }

1668N/A bool contains(address addr) const { return content_contains(addr); }

1668N/A bool is_frame_complete_at(address addr) const { return code_contains(addr) &&

1668N/A addr >= code_begin() + _frame_complete_offset; }

0N/A

0N/A // CodeCache support: really only used by the nmethods, but in order to get

0N/A // asserts and certain bookkeeping to work in the CodeCache they are defined

0N/A // virtual here.

0N/A virtual bool is_zombie() const { return false; }

0N/A virtual bool is_locked_by_vm() const { return false; }

0N/A

0N/A virtual bool is_unloaded() const { return false; }

0N/A virtual bool is_not_entrant() const { return false; }

0N/A

0N/A // GC support

0N/A virtual bool is_alive() const = 0;

0N/A

0N/A // OopMap for frame

0N/A OopMapSet* oop_maps() const { return _oop_maps; }

0N/A void set_oop_maps(OopMapSet* p);

0N/A OopMap* oop_map_for_return_address(address return_address);

0N/A virtual void preserve_callee_argument_oops(frame fr, const RegisterMap* reg_map, OopClosure* f) { ShouldNotReachHere(); }

0N/A

0N/A // Frame support

0N/A int frame_size() const { return _frame_size; }

0N/A void set_frame_size(int size) { _frame_size = size; }

0N/A

0N/A // Returns true, if the next frame is responsible for GC'ing oops passed as arguments

0N/A virtual bool caller_must_gc_arguments(JavaThread* thread) const { return false; }

0N/A

0N/A // Naming

0N/A const char* name() const { return _name; }

0N/A void set_name(const char* name) { _name = name; }

0N/A

0N/A // Debugging

0N/A virtual void verify();

1601N/A void print() const { print_on(tty); }

1601N/A virtual void print_on(outputStream* st) const;

1601N/A virtual void print_value_on(outputStream* st) const;

0N/A

0N/A // Print the comment associated with offset on stream, if there is one

1155N/A virtual void print_block_comment(outputStream* stream, address block_begin) {

1668N/A intptr_t offset = (intptr_t)(block_begin - code_begin());

0N/A _comments.print_block_comment(stream, offset);

0N/A }

0N/A

0N/A // Transfer ownership of comments to this CodeBlob

0N/A void set_comments(CodeComments& comments) {

0N/A _comments.assign(comments);

0N/A }

0N/A};

0N/A

0N/A

0N/A

0N/Aclass BufferBlob: public CodeBlob {

0N/A friend class VMStructs;

1299N/A friend class AdapterBlob;

1299N/A friend class MethodHandlesAdapterBlob;

1299N/A

0N/A private:

0N/A // Creation support

0N/A BufferBlob(const char* name, int size);

0N/A BufferBlob(const char* name, int size, CodeBuffer* cb);

0N/A

0N/A void* operator new(size_t s, unsigned size);

0N/A

0N/A public:

0N/A // Creation

0N/A static BufferBlob* create(const char* name, int buffer_size);

0N/A static BufferBlob* create(const char* name, CodeBuffer* cb);

0N/A

0N/A static void free(BufferBlob* buf);

0N/A

0N/A // Typing

1299N/A virtual bool is_buffer_blob() const { return true; }

0N/A

0N/A // GC/Verification support

0N/A void preserve_callee_argument_oops(frame fr, const RegisterMap* reg_map, OopClosure* f) { /* nothing to do */ }

0N/A bool is_alive() const { return true; }

0N/A

0N/A void verify();

1601N/A void print_on(outputStream* st) const;

1601N/A void print_value_on(outputStream* st) const;

0N/A};

0N/A

0N/A

1299N/A

1299N/Aclass AdapterBlob: public BufferBlob {

1299N/Aprivate:

1583N/A AdapterBlob(int size, CodeBuffer* cb);

1299N/A

1299N/Apublic:

1299N/A // Creation

1299N/A static AdapterBlob* create(CodeBuffer* cb);

1299N/A

1299N/A // Typing

1299N/A virtual bool is_adapter_blob() const { return true; }

1299N/A};

1299N/A

1299N/A

1299N/A

1299N/Aclass MethodHandlesAdapterBlob: public BufferBlob {

1299N/Aprivate:

1299N/A MethodHandlesAdapterBlob(int size) : BufferBlob("MethodHandles adapters", size) {}

1299N/A MethodHandlesAdapterBlob(int size, CodeBuffer* cb) : BufferBlob("MethodHandles adapters", size, cb) {}

1299N/A

1299N/Apublic:

1299N/A // Creation

1299N/A static MethodHandlesAdapterBlob* create(int buffer_size);

1299N/A

1299N/A // Typing

1299N/A virtual bool is_method_handles_adapter_blob() const { return true; }

1299N/A};

1299N/A

1299N/A

0N/A

0N/Aclass RuntimeStub: public CodeBlob {

0N/A friend class VMStructs;

0N/A private:

0N/A bool _caller_must_gc_arguments;

0N/A

0N/A // Creation support

0N/A RuntimeStub(

0N/A const char* name,

0N/A CodeBuffer* cb,

0N/A int size,

0N/A int frame_complete,

0N/A int frame_size,

0N/A OopMapSet* oop_maps,

0N/A bool caller_must_gc_arguments

0N/A );

0N/A

0N/A void* operator new(size_t s, unsigned size);

0N/A

0N/A public:

0N/A // Creation

0N/A static RuntimeStub* new_runtime_stub(

0N/A const char* stub_name,

0N/A CodeBuffer* cb,

0N/A int frame_complete,

0N/A int frame_size,

0N/A OopMapSet* oop_maps,

0N/A bool caller_must_gc_arguments

0N/A );

0N/A

0N/A // Typing

0N/A bool is_runtime_stub() const { return true; }

0N/A

0N/A // GC support

0N/A bool caller_must_gc_arguments(JavaThread* thread) const { return _caller_must_gc_arguments; }

0N/A

1668N/A address entry_point() { return code_begin(); }

0N/A

0N/A // GC/Verification support

0N/A void preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { /* nothing to do */ }

0N/A bool is_alive() const { return true; }

0N/A

0N/A void verify();

1601N/A void print_on(outputStream* st) const;

1601N/A void print_value_on(outputStream* st) const;

0N/A};

0N/A

0N/A

0N/A

0N/Aclass SingletonBlob: public CodeBlob {

0N/A friend class VMStructs;

0N/A public:

0N/A SingletonBlob(

0N/A const char* name,

0N/A CodeBuffer* cb,

0N/A int header_size,

0N/A int size,

0N/A int frame_size,

0N/A OopMapSet* oop_maps

0N/A )

0N/A : CodeBlob(name, cb, header_size, size, CodeOffsets::frame_never_safe, frame_size, oop_maps)

1668N/A {};

0N/A

1668N/A address entry_point() { return code_begin(); }

0N/A

1668N/A bool is_alive() const { return true; }

1668N/A

1668N/A void verify(); // does nothing

1668N/A void print_on(outputStream* st) const;

1668N/A void print_value_on(outputStream* st) const;

0N/A};

0N/A

0N/A

0N/A

0N/Aclass DeoptimizationBlob: public SingletonBlob {

0N/A friend class VMStructs;

0N/A private:

0N/A int _unpack_offset;

0N/A int _unpack_with_exception;

0N/A int _unpack_with_reexecution;

0N/A

0N/A int _unpack_with_exception_in_tls;

0N/A

0N/A // Creation support

0N/A DeoptimizationBlob(

0N/A CodeBuffer* cb,

0N/A int size,

0N/A OopMapSet* oop_maps,

0N/A int unpack_offset,

0N/A int unpack_with_exception_offset,

0N/A int unpack_with_reexecution_offset,

0N/A int frame_size

0N/A );

0N/A

0N/A void* operator new(size_t s, unsigned size);

0N/A

0N/A public:

0N/A // Creation

0N/A static DeoptimizationBlob* create(

0N/A CodeBuffer* cb,

0N/A OopMapSet* oop_maps,

0N/A int unpack_offset,

0N/A int unpack_with_exception_offset,

0N/A int unpack_with_reexecution_offset,

0N/A int frame_size

0N/A );

0N/A

0N/A // Typing

0N/A bool is_deoptimization_stub() const { return true; }

0N/A const DeoptimizationBlob *as_deoptimization_stub() const { return this; }

0N/A bool exception_address_is_unpack_entry(address pc) const {

0N/A address unpack_pc = unpack();

0N/A return (pc == unpack_pc || (pc + frame::pc_return_offset) == unpack_pc);

0N/A }

0N/A

0N/A

0N/A

0N/A

0N/A // GC for args

0N/A void preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { /* Nothing to do */ }

0N/A

0N/A // Printing

1601N/A void print_value_on(outputStream* st) const;

0N/A

1668N/A address unpack() const { return code_begin() + _unpack_offset; }

1668N/A address unpack_with_exception() const { return code_begin() + _unpack_with_exception; }

1668N/A address unpack_with_reexecution() const { return code_begin() + _unpack_with_reexecution; }

0N/A

0N/A // Alternate entry point for C1 where the exception and issuing pc

0N/A // are in JavaThread::_exception_oop and JavaThread::_exception_pc

0N/A // instead of being in registers. This is needed because C1 doesn't

0N/A // model exception paths in a way that keeps these registers free so

0N/A // there may be live values in those registers during deopt.

0N/A void set_unpack_with_exception_in_tls_offset(int offset) {

0N/A _unpack_with_exception_in_tls = offset;

1668N/A assert(code_contains(code_begin() + _unpack_with_exception_in_tls), "must be PC inside codeblob");

0N/A }

1668N/A address unpack_with_exception_in_tls() const { return code_begin() + _unpack_with_exception_in_tls; }

0N/A};

0N/A

0N/A

0N/A

0N/A#ifdef COMPILER2

0N/A

0N/Aclass UncommonTrapBlob: public SingletonBlob {

0N/A friend class VMStructs;

0N/A private:

0N/A // Creation support

0N/A UncommonTrapBlob(

0N/A CodeBuffer* cb,

0N/A int size,

0N/A OopMapSet* oop_maps,

0N/A int frame_size

0N/A );

0N/A

0N/A void* operator new(size_t s, unsigned size);

0N/A

0N/A public:

0N/A // Creation

0N/A static UncommonTrapBlob* create(

0N/A CodeBuffer* cb,

0N/A OopMapSet* oop_maps,

0N/A int frame_size

0N/A );

0N/A

0N/A // GC for args

0N/A void preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { /* nothing to do */ }

0N/A

0N/A // Typing

0N/A bool is_uncommon_trap_stub() const { return true; }

0N/A};

0N/A

0N/A

0N/A

0N/Aclass ExceptionBlob: public SingletonBlob {

0N/A friend class VMStructs;

0N/A private:

0N/A // Creation support

0N/A ExceptionBlob(

0N/A CodeBuffer* cb,

0N/A int size,

0N/A OopMapSet* oop_maps,

0N/A int frame_size

0N/A );

0N/A

0N/A void* operator new(size_t s, unsigned size);

0N/A

0N/A public:

0N/A // Creation

0N/A static ExceptionBlob* create(

0N/A CodeBuffer* cb,

0N/A OopMapSet* oop_maps,

0N/A int frame_size

0N/A );

0N/A

0N/A // GC for args

0N/A void preserve_callee_argument_oops(frame fr, const RegisterMap* reg_map, OopClosure* f) { /* nothing to do */ }

0N/A

0N/A // Typing

0N/A bool is_exception_stub() const { return true; }

0N/A};

0N/A#endif // COMPILER2

0N/A

0N/A

0N/A

0N/Aclass SafepointBlob: public SingletonBlob {

0N/A friend class VMStructs;

0N/A private:

0N/A // Creation support

0N/A SafepointBlob(

0N/A CodeBuffer* cb,

0N/A int size,

0N/A OopMapSet* oop_maps,

0N/A int frame_size

0N/A );

0N/A

0N/A void* operator new(size_t s, unsigned size);

0N/A

0N/A public:

0N/A // Creation

0N/A static SafepointBlob* create(

0N/A CodeBuffer* cb,

0N/A OopMapSet* oop_maps,

0N/A int frame_size

0N/A );

0N/A

0N/A // GC for args

0N/A void preserve_callee_argument_oops(frame fr, const RegisterMap* reg_map, OopClosure* f) { /* nothing to do */ }

0N/A

0N/A // Typing

0N/A bool is_safepoint_stub() const { return true; }

0N/A};

1879N/A

1879N/A#endif // SHARE_VM_CODE_CODEBLOB_HPP