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src/cpu/x86/vm/interp_masm_x86_64.hpp@bb1da64b0492 (annotated)

src/cpu/x86/vm/interp_masm_x86_64.hpp

Fri, 16 Aug 2019 16:50:17 +0200

author

eosterlund

date

Fri, 16 Aug 2019 16:50:17 +0200

changeset 9834

bb1da64b0492

parent 5987

5ccbab1c69f3

child 6876

710a3c8b516e

permissions

-rw-r--r--

8229345: Memory leak due to vtable stubs not being shared on SPARC
Reviewed-by: mdoerr, dholmes, kvn

duke@435	1	/*
jiangli@4936	2	* Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
never@739	25	#ifndef CC_INTERP
duke@435	26	protected:
duke@435	27	// Interpreter specific version of call_VM_base
duke@435	28	virtual void call_VM_leaf_base(address entry_point,
duke@435	29	int number_of_arguments);
duke@435	30
duke@435	31	virtual void call_VM_base(Register oop_result,
duke@435	32	Register java_thread,
duke@435	33	Register last_java_sp,
duke@435	34	address entry_point,
duke@435	35	int number_of_arguments,
duke@435	36	bool check_exceptions);
duke@435	37
duke@435	38	virtual void check_and_handle_popframe(Register java_thread);
duke@435	39	virtual void check_and_handle_earlyret(Register java_thread);
duke@435	40
duke@435	41	// base routine for all dispatches
duke@435	42	void dispatch_base(TosState state, address* table, bool verifyoop = true);
never@739	43	#endif // CC_INTERP
duke@435	44
duke@435	45	public:
roland@5987	46	InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code), _locals_register(r14), _bcp_register(r13) {}
duke@435	47
duke@435	48	void load_earlyret_value(TosState state);
duke@435	49
never@739	50	#ifdef CC_INTERP
never@739	51	void save_bcp() { /* not needed in c++ interpreter and harmless */ }
never@739	52	void restore_bcp() { /* not needed in c++ interpreter and harmless */ }
never@739	53
never@739	54	// Helpers for runtime call arguments/results
never@739	55	void get_method(Register reg);
never@739	56
never@739	57	#else
never@739	58
duke@435	59	// Interpreter-specific registers
never@739	60	void save_bcp() {
never@739	61	movptr(Address(rbp, frame::interpreter_frame_bcx_offset * wordSize), r13);
duke@435	62	}
duke@435	63
never@739	64	void restore_bcp() {
never@739	65	movptr(r13, Address(rbp, frame::interpreter_frame_bcx_offset * wordSize));
duke@435	66	}
duke@435	67
never@739	68	void restore_locals() {
never@739	69	movptr(r14, Address(rbp, frame::interpreter_frame_locals_offset * wordSize));
duke@435	70	}
duke@435	71
duke@435	72	// Helpers for runtime call arguments/results
never@739	73	void get_method(Register reg) {
never@739	74	movptr(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize));
duke@435	75	}
duke@435	76
jiangli@3826	77	void get_const(Register reg) {
jiangli@3826	78	get_method(reg);
coleenp@4037	79	movptr(reg, Address(reg, Method::const_offset()));
jiangli@3826	80	}
jiangli@3826	81
never@739	82	void get_constant_pool(Register reg) {
jiangli@3826	83	get_const(reg);
coleenp@4037	84	movptr(reg, Address(reg, ConstMethod::constants_offset()));
duke@435	85	}
duke@435	86
never@739	87	void get_constant_pool_cache(Register reg) {
duke@435	88	get_constant_pool(reg);
coleenp@4037	89	movptr(reg, Address(reg, ConstantPool::cache_offset_in_bytes()));
duke@435	90	}
duke@435	91
never@739	92	void get_cpool_and_tags(Register cpool, Register tags) {
duke@435	93	get_constant_pool(cpool);
coleenp@4037	94	movptr(tags, Address(cpool, ConstantPool::tags_offset_in_bytes()));
duke@435	95	}
duke@435	96
duke@435	97	void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset);
twisti@3050	98	void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, size_t index_size = sizeof(u2));
twisti@3050	99	void get_cache_and_index_and_bytecode_at_bcp(Register cache, Register index, Register bytecode, int byte_no, int bcp_offset, size_t index_size = sizeof(u2));
twisti@3050	100	void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2));
jrose@1920	101	void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2));
jiangli@4936	102	void get_method_counters(Register method, Register mcs, Label& skip);
duke@435	103
coleenp@4037	104	// load cpool->resolved_references(index);
coleenp@4037	105	void load_resolved_reference_at_index(Register result, Register index);
coleenp@4037	106
duke@435	107	void pop_ptr(Register r = rax);
duke@435	108	void pop_i(Register r = rax);
duke@435	109	void pop_l(Register r = rax);
duke@435	110	void pop_f(XMMRegister r = xmm0);
duke@435	111	void pop_d(XMMRegister r = xmm0);
duke@435	112	void push_ptr(Register r = rax);
duke@435	113	void push_i(Register r = rax);
duke@435	114	void push_l(Register r = rax);
duke@435	115	void push_f(XMMRegister r = xmm0);
duke@435	116	void push_d(XMMRegister r = xmm0);
duke@435	117
never@739	118	void pop(Register r ) { ((MacroAssembler*)this)->pop(r); }
never@739	119
never@739	120	void push(Register r ) { ((MacroAssembler*)this)->push(r); }
never@739	121	void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); }
never@739	122
duke@435	123	void pop(TosState state); // transition vtos -> state
duke@435	124	void push(TosState state); // transition state -> vtos
duke@435	125
twisti@1861	126	void empty_expression_stack() {
never@739	127	movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize));
duke@435	128	// NULL last_sp until next java call
never@739	129	movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD);
duke@435	130	}
duke@435	131
twisti@1861	132	// Helpers for swap and dup
twisti@1861	133	void load_ptr(int n, Register val);
twisti@1861	134	void store_ptr(int n, Register val);
twisti@1861	135
duke@435	136	// Generate a subtype check: branch to ok_is_subtype if sub_klass is
duke@435	137	// a subtype of super_klass.
duke@435	138	void gen_subtype_check( Register sub_klass, Label &ok_is_subtype );
duke@435	139
duke@435	140	// Dispatching
duke@435	141	void dispatch_prolog(TosState state, int step = 0);
duke@435	142	void dispatch_epilog(TosState state, int step = 0);
duke@435	143	// dispatch via ebx (assume ebx is loaded already)
duke@435	144	void dispatch_only(TosState state);
duke@435	145	// dispatch normal table via ebx (assume ebx is loaded already)
duke@435	146	void dispatch_only_normal(TosState state);
duke@435	147	void dispatch_only_noverify(TosState state);
duke@435	148	// load ebx from [esi + step] and dispatch via ebx
duke@435	149	void dispatch_next(TosState state, int step = 0);
duke@435	150	// load ebx from [esi] and dispatch via ebx and table
duke@435	151	void dispatch_via (TosState state, address* table);
duke@435	152
duke@435	153	// jump to an invoked target
jrose@1145	154	void prepare_to_jump_from_interpreted();
duke@435	155	void jump_from_interpreted(Register method, Register temp);
duke@435	156
duke@435	157
duke@435	158	// Returning from interpreted functions
duke@435	159	//
duke@435	160	// Removes the current activation (incl. unlocking of monitors)
duke@435	161	// and sets up the return address. This code is also used for
duke@435	162	// exception unwindwing. In that case, we do not want to throw
duke@435	163	// IllegalMonitorStateExceptions, since that might get us into an
duke@435	164	// infinite rethrow exception loop.
duke@435	165	// Additionally this code is used for popFrame and earlyReturn.
duke@435	166	// In popFrame case we want to skip throwing an exception,
duke@435	167	// installing an exception, and notifying jvmdi.
duke@435	168	// In earlyReturn case we only want to skip throwing an exception
duke@435	169	// and installing an exception.
duke@435	170	void remove_activation(TosState state, Register ret_addr,
duke@435	171	bool throw_monitor_exception = true,
duke@435	172	bool install_monitor_exception = true,
duke@435	173	bool notify_jvmdi = true);
never@739	174	#endif // CC_INTERP
duke@435	175
duke@435	176	// Object locking
duke@435	177	void lock_object (Register lock_reg);
duke@435	178	void unlock_object(Register lock_reg);
duke@435	179
never@739	180	#ifndef CC_INTERP
never@739	181
duke@435	182	// Interpreter profiling operations
duke@435	183	void set_method_data_pointer_for_bcp();
duke@435	184	void test_method_data_pointer(Register mdp, Label& zero_continue);
duke@435	185	void verify_method_data_pointer();
duke@435	186
duke@435	187	void set_mdp_data_at(Register mdp_in, int constant, Register value);
duke@435	188	void increment_mdp_data_at(Address data, bool decrement = false);
duke@435	189	void increment_mdp_data_at(Register mdp_in, int constant,
duke@435	190	bool decrement = false);
duke@435	191	void increment_mdp_data_at(Register mdp_in, Register reg, int constant,
duke@435	192	bool decrement = false);
iveresov@2138	193	void increment_mask_and_jump(Address counter_addr,
iveresov@2138	194	int increment, int mask,
iveresov@2138	195	Register scratch, bool preloaded,
iveresov@2138	196	Condition cond, Label* where);
duke@435	197	void set_mdp_flag_at(Register mdp_in, int flag_constant);
duke@435	198	void test_mdp_data_at(Register mdp_in, int offset, Register value,
duke@435	199	Register test_value_out,
duke@435	200	Label& not_equal_continue);
duke@435	201
duke@435	202	void record_klass_in_profile(Register receiver, Register mdp,
kvn@1641	203	Register reg2, bool is_virtual_call);
duke@435	204	void record_klass_in_profile_helper(Register receiver, Register mdp,
kvn@1641	205	Register reg2, int start_row,
kvn@1641	206	Label& done, bool is_virtual_call);
duke@435	207
duke@435	208	void update_mdp_by_offset(Register mdp_in, int offset_of_offset);
duke@435	209	void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);
duke@435	210	void update_mdp_by_constant(Register mdp_in, int constant);
duke@435	211	void update_mdp_for_ret(Register return_bci);
duke@435	212
duke@435	213	void profile_taken_branch(Register mdp, Register bumped_count);
duke@435	214	void profile_not_taken_branch(Register mdp);
duke@435	215	void profile_call(Register mdp);
duke@435	216	void profile_final_call(Register mdp);
duke@435	217	void profile_virtual_call(Register receiver, Register mdp,
twisti@1543	218	Register scratch2,
twisti@1543	219	bool receiver_can_be_null = false);
duke@435	220	void profile_ret(Register return_bci, Register mdp);
duke@435	221	void profile_null_seen(Register mdp);
duke@435	222	void profile_typecheck(Register mdp, Register klass, Register scratch);
duke@435	223	void profile_typecheck_failed(Register mdp);
duke@435	224	void profile_switch_default(Register mdp);
duke@435	225	void profile_switch_case(Register index_in_scratch, Register mdp,
duke@435	226	Register scratch2);
duke@435	227
duke@435	228	// Debugging
duke@435	229	// only if +VerifyOops && state == atos
duke@435	230	void verify_oop(Register reg, TosState state = atos);
duke@435	231	// only if +VerifyFPU && (state == ftos || state == dtos)
duke@435	232	void verify_FPU(int stack_depth, TosState state = ftos);
duke@435	233
never@739	234	#endif // !CC_INTERP
never@739	235
duke@435	236	typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
duke@435	237
duke@435	238	// support for jvmti/dtrace
duke@435	239	void notify_method_entry();
duke@435	240	void notify_method_exit(TosState state, NotifyMethodExitMode mode);