| /* |
| * Copyright (c) 1997, 2013, 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 CC_INTERP |
| protected: |
| // Interpreter specific version of call_VM_base |
| virtual void call_VM_leaf_base( |
| address entry_point, |
| int number_of_arguments |
| ); |
| |
| virtual void call_VM_base( |
| Register oop_result, |
| Register java_thread, |
| Register last_java_sp, |
| address entry_point, |
| int number_of_arguments, |
| bool check_exceptions |
| ); |
| |
| virtual void check_and_handle_popframe(Register java_thread); |
| virtual void check_and_handle_earlyret(Register java_thread); |
| |
| // base routine for all dispatches |
| void dispatch_base(TosState state, address* table, bool verifyoop = true); |
| #endif /* CC_INTERP */ |
| |
| public: |
| InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code), _locals_register(rdi), _bcp_register(rsi) {} |
| |
| void load_earlyret_value(TosState state); |
| |
| // Interpreter-specific registers |
| #ifdef CC_INTERP |
| void save_bcp() { /* not needed in c++ interpreter and harmless */ } |
| void restore_bcp() { /* not needed in c++ interpreter and harmless */ } |
| |
| // Helpers for runtime call arguments/results |
| void get_method(Register reg); |
| |
| #else |
| |
| void save_bcp() { movptr(Address(rbp, frame::interpreter_frame_bcx_offset * wordSize), rsi); } |
| void restore_bcp() { movptr(rsi, Address(rbp, frame::interpreter_frame_bcx_offset * wordSize)); } |
| void restore_locals() { movptr(rdi, Address(rbp, frame::interpreter_frame_locals_offset * wordSize)); } |
| |
| // Helpers for runtime call arguments/results |
| void get_method(Register reg) { movptr(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); } |
| void get_const(Register reg) { get_method(reg); movptr(reg, Address(reg, Method::const_offset())); } |
| void get_constant_pool(Register reg) { get_const(reg); movptr(reg, Address(reg, ConstMethod::constants_offset())); } |
| void get_constant_pool_cache(Register reg) { get_constant_pool(reg); movptr(reg, Address(reg, ConstantPool::cache_offset_in_bytes())); } |
| void get_cpool_and_tags(Register cpool, Register tags) { get_constant_pool(cpool); movptr(tags, Address(cpool, ConstantPool::tags_offset_in_bytes())); |
| } |
| void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset); |
| void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, size_t index_size = sizeof(u2)); |
| 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)); |
| void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2)); |
| void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2)); |
| void get_method_counters(Register method, Register mcs, Label& skip); |
| |
| // load cpool->resolved_references(index); |
| void load_resolved_reference_at_index(Register result, Register index); |
| |
| // Expression stack |
| void f2ieee(); // truncate ftos to 32bits |
| void d2ieee(); // truncate dtos to 64bits |
| |
| void pop_ptr(Register r = rax); |
| void pop_i(Register r = rax); |
| void pop_l(Register lo = rax, Register hi = rdx); |
| void pop_f(); |
| void pop_d(); |
| |
| void push_ptr(Register r = rax); |
| void push_i(Register r = rax); |
| void push_l(Register lo = rax, Register hi = rdx); |
| void push_d(Register r = rax); |
| void push_f(); |
| |
| void pop(TosState state); // transition vtos -> state |
| void push(TosState state); // transition state -> vtos |
| |
| void pop(Register r ) { ((MacroAssembler*)this)->pop(r); } |
| |
| void push(Register r ) { ((MacroAssembler*)this)->push(r); } |
| void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); } |
| |
| // These are dummies to prevent surprise implicit conversions to Register |
| void pop(void* v ); // Add unimplemented ambiguous method |
| void push(void* v ); // Add unimplemented ambiguous method |
| |
| void empty_expression_stack() { |
| movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize)); |
| // NULL last_sp until next java call |
| movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD); |
| } |
| |
| // Helpers for swap and dup |
| void load_ptr(int n, Register val); |
| void store_ptr(int n, Register val); |
| |
| // Generate a subtype check: branch to ok_is_subtype if sub_klass is |
| // a subtype of super_klass. EAX holds the super_klass. Blows ECX |
| // and EDI. Register sub_klass cannot be any of the above. |
| void gen_subtype_check( Register sub_klass, Label &ok_is_subtype ); |
| |
| // Dispatching |
| void dispatch_prolog(TosState state, int step = 0); |
| void dispatch_epilog(TosState state, int step = 0); |
| void dispatch_only(TosState state); // dispatch via rbx, (assume rbx, is loaded already) |
| void dispatch_only_normal(TosState state); // dispatch normal table via rbx, (assume rbx, is loaded already) |
| void dispatch_only_noverify(TosState state); |
| void dispatch_next(TosState state, int step = 0); // load rbx, from [esi + step] and dispatch via rbx, |
| void dispatch_via (TosState state, address* table); // load rbx, from [esi] and dispatch via rbx, and table |
| |
| |
| // jump to an invoked target |
| void prepare_to_jump_from_interpreted(); |
| void jump_from_interpreted(Register method, Register temp); |
| |
| // Returning from interpreted functions |
| // |
| // Removes the current activation (incl. unlocking of monitors) |
| // and sets up the return address. This code is also used for |
| // exception unwindwing. In that case, we do not want to throw |
| // IllegalMonitorStateExceptions, since that might get us into an |
| // infinite rethrow exception loop. |
| // Additionally this code is used for popFrame and earlyReturn. |
| // In popFrame case we want to skip throwing an exception, |
| // installing an exception, and notifying jvmdi. |
| // In earlyReturn case we only want to skip throwing an exception |
| // and installing an exception. |
| void remove_activation(TosState state, Register ret_addr, |
| bool throw_monitor_exception = true, |
| bool install_monitor_exception = true, |
| bool notify_jvmdi = true); |
| #endif /* !CC_INTERP */ |
| |
| // Debugging |
| void verify_oop(Register reg, TosState state = atos); // only if +VerifyOops && state == atos |
| #ifndef CC_INTERP |
| void verify_FPU(int stack_depth, TosState state = ftos); // only if +VerifyFPU && (state == ftos || state == dtos) |
| |
| #endif /* !CC_INTERP */ |
| |
| // Object locking |
| void lock_object (Register lock_reg); |
| void unlock_object(Register lock_reg); |
| |
| #ifndef CC_INTERP |
| |
| // Interpreter profiling operations |
| void set_method_data_pointer_for_bcp(); |
| void test_method_data_pointer(Register mdp, Label& zero_continue); |
| void verify_method_data_pointer(); |
| |
| void set_mdp_data_at(Register mdp_in, int constant, Register value); |
| void increment_mdp_data_at(Address data, bool decrement = false); |
| void increment_mdp_data_at(Register mdp_in, int constant, |
| bool decrement = false); |
| void increment_mdp_data_at(Register mdp_in, Register reg, int constant, |
| bool decrement = false); |
| void increment_mask_and_jump(Address counter_addr, |
| int increment, int mask, |
| Register scratch, bool preloaded, |
| Condition cond, Label* where); |
| void set_mdp_flag_at(Register mdp_in, int flag_constant); |
| void test_mdp_data_at(Register mdp_in, int offset, Register value, |
| Register test_value_out, |
| Label& not_equal_continue); |
| |
| void record_klass_in_profile(Register receiver, Register mdp, |
| Register reg2, bool is_virtual_call); |
| void record_klass_in_profile_helper(Register receiver, Register mdp, |
| Register reg2, int start_row, |
| Label& done, bool is_virtual_call); |
| |
| void update_mdp_by_offset(Register mdp_in, int offset_of_offset); |
| void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp); |
| void update_mdp_by_constant(Register mdp_in, int constant); |
| void update_mdp_for_ret(Register return_bci); |
| |
| void profile_taken_branch(Register mdp, Register bumped_count); |
| void profile_not_taken_branch(Register mdp); |
| void profile_call(Register mdp); |
| void profile_final_call(Register mdp); |
| void profile_virtual_call(Register receiver, Register mdp, Register scratch2, |
| bool receiver_can_be_null = false); |
| void profile_ret(Register return_bci, Register mdp); |
| void profile_null_seen(Register mdp); |
| void profile_typecheck(Register mdp, Register klass, Register scratch); |
| void profile_typecheck_failed(Register mdp); |
| void profile_switch_default(Register mdp); |
| void profile_switch_case(Register index_in_scratch, Register mdp, Register scratch2); |
| |
| #endif /* !CC_INTERP */ |
| |
| typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode; |
| |
| // support for jvmti |
| void notify_method_entry(); |
| void notify_method_exit(TosState state, NotifyMethodExitMode mode); |
