author | trims |
Thu, 27 May 2010 19:08:38 -0700 | |
changeset 5547 | f4b087cbb361 |
parent 5419 | f2e8cc8c12ea |
child 5702 | 201c5cde25bb |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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// This file specializes the assember with interpreter-specific macros |
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class InterpreterMacroAssembler: public MacroAssembler { |
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#ifndef CC_INTERP |
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protected: |
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// Interpreter specific version of call_VM_base |
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virtual void call_VM_leaf_base(address entry_point, |
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int number_of_arguments); |
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virtual void call_VM_base(Register oop_result, |
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Register java_thread, |
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Register last_java_sp, |
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address entry_point, |
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int number_of_arguments, |
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bool check_exceptions); |
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virtual void check_and_handle_popframe(Register java_thread); |
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virtual void check_and_handle_earlyret(Register java_thread); |
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// base routine for all dispatches |
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void dispatch_base(TosState state, address* table, bool verifyoop = true); |
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#endif // CC_INTERP |
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public: |
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InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code) {} |
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void load_earlyret_value(TosState state); |
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#ifdef CC_INTERP |
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void save_bcp() { /* not needed in c++ interpreter and harmless */ } |
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void restore_bcp() { /* not needed in c++ interpreter and harmless */ } |
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// Helpers for runtime call arguments/results |
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void get_method(Register reg); |
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#else |
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// Interpreter-specific registers |
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void save_bcp() { |
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movptr(Address(rbp, frame::interpreter_frame_bcx_offset * wordSize), r13); |
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} |
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void restore_bcp() { |
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movptr(r13, Address(rbp, frame::interpreter_frame_bcx_offset * wordSize)); |
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} |
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void restore_locals() { |
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movptr(r14, Address(rbp, frame::interpreter_frame_locals_offset * wordSize)); |
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} |
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// Helpers for runtime call arguments/results |
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void get_method(Register reg) { |
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movptr(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); |
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} |
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void get_constant_pool(Register reg) { |
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get_method(reg); |
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movptr(reg, Address(reg, methodOopDesc::constants_offset())); |
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} |
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void get_constant_pool_cache(Register reg) { |
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get_constant_pool(reg); |
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movptr(reg, Address(reg, constantPoolOopDesc::cache_offset_in_bytes())); |
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} |
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void get_cpool_and_tags(Register cpool, Register tags) { |
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get_constant_pool(cpool); |
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movptr(tags, Address(cpool, constantPoolOopDesc::tags_offset_in_bytes())); |
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} |
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void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset); |
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void get_cache_and_index_at_bcp(Register cache, Register index, |
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int bcp_offset, bool giant_index = false); |
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void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, |
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int bcp_offset, bool giant_index = false); |
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void get_cache_index_at_bcp(Register index, int bcp_offset, bool giant_index = false); |
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void pop_ptr(Register r = rax); |
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void pop_i(Register r = rax); |
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void pop_l(Register r = rax); |
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void pop_f(XMMRegister r = xmm0); |
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void pop_d(XMMRegister r = xmm0); |
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void push_ptr(Register r = rax); |
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void push_i(Register r = rax); |
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void push_l(Register r = rax); |
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void push_f(XMMRegister r = xmm0); |
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void push_d(XMMRegister r = xmm0); |
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void pop(Register r ) { ((MacroAssembler*)this)->pop(r); } |
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void push(Register r ) { ((MacroAssembler*)this)->push(r); } |
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void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); } |
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void pop(TosState state); // transition vtos -> state |
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void push(TosState state); // transition state -> vtos |
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void empty_expression_stack() { |
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movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize)); |
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// NULL last_sp until next java call |
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movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
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} |
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// Helpers for swap and dup |
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void load_ptr(int n, Register val); |
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void store_ptr(int n, Register val); |
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// Super call_VM calls - correspond to MacroAssembler::call_VM(_leaf) calls |
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void super_call_VM_leaf(address entry_point); |
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void super_call_VM_leaf(address entry_point, Register arg_1); |
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void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2); |
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void super_call_VM_leaf(address entry_point, |
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Register arg_1, Register arg_2, Register arg_3); |
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// Generate a subtype check: branch to ok_is_subtype if sub_klass is |
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// a subtype of super_klass. |
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void gen_subtype_check( Register sub_klass, Label &ok_is_subtype ); |
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// Dispatching |
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void dispatch_prolog(TosState state, int step = 0); |
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void dispatch_epilog(TosState state, int step = 0); |
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// dispatch via ebx (assume ebx is loaded already) |
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void dispatch_only(TosState state); |
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// dispatch normal table via ebx (assume ebx is loaded already) |
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void dispatch_only_normal(TosState state); |
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void dispatch_only_noverify(TosState state); |
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// load ebx from [esi + step] and dispatch via ebx |
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void dispatch_next(TosState state, int step = 0); |
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// load ebx from [esi] and dispatch via ebx and table |
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void dispatch_via (TosState state, address* table); |
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// jump to an invoked target |
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void prepare_to_jump_from_interpreted(); |
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void jump_from_interpreted(Register method, Register temp); |
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// Returning from interpreted functions |
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// |
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// Removes the current activation (incl. unlocking of monitors) |
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// and sets up the return address. This code is also used for |
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// exception unwindwing. In that case, we do not want to throw |
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// IllegalMonitorStateExceptions, since that might get us into an |
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// infinite rethrow exception loop. |
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// Additionally this code is used for popFrame and earlyReturn. |
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// In popFrame case we want to skip throwing an exception, |
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// installing an exception, and notifying jvmdi. |
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// In earlyReturn case we only want to skip throwing an exception |
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// and installing an exception. |
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void remove_activation(TosState state, Register ret_addr, |
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bool throw_monitor_exception = true, |
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bool install_monitor_exception = true, |
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bool notify_jvmdi = true); |
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#endif // CC_INTERP |
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// Object locking |
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void lock_object (Register lock_reg); |
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void unlock_object(Register lock_reg); |
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#ifndef CC_INTERP |
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// Interpreter profiling operations |
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void set_method_data_pointer_for_bcp(); |
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void test_method_data_pointer(Register mdp, Label& zero_continue); |
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void verify_method_data_pointer(); |
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void set_mdp_data_at(Register mdp_in, int constant, Register value); |
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void increment_mdp_data_at(Address data, bool decrement = false); |
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void increment_mdp_data_at(Register mdp_in, int constant, |
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bool decrement = false); |
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void increment_mdp_data_at(Register mdp_in, Register reg, int constant, |
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bool decrement = false); |
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void set_mdp_flag_at(Register mdp_in, int flag_constant); |
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void test_mdp_data_at(Register mdp_in, int offset, Register value, |
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Register test_value_out, |
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Label& not_equal_continue); |
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void record_klass_in_profile(Register receiver, Register mdp, |
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Register reg2, bool is_virtual_call); |
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void record_klass_in_profile_helper(Register receiver, Register mdp, |
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Register reg2, int start_row, |
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Label& done, bool is_virtual_call); |
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void update_mdp_by_offset(Register mdp_in, int offset_of_offset); |
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void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp); |
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void update_mdp_by_constant(Register mdp_in, int constant); |
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void update_mdp_for_ret(Register return_bci); |
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void profile_taken_branch(Register mdp, Register bumped_count); |
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void profile_not_taken_branch(Register mdp); |
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void profile_call(Register mdp); |
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void profile_final_call(Register mdp); |
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void profile_virtual_call(Register receiver, Register mdp, |
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Register scratch2, |
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bool receiver_can_be_null = false); |
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void profile_ret(Register return_bci, Register mdp); |
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void profile_null_seen(Register mdp); |
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void profile_typecheck(Register mdp, Register klass, Register scratch); |
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void profile_typecheck_failed(Register mdp); |
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void profile_switch_default(Register mdp); |
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void profile_switch_case(Register index_in_scratch, Register mdp, |
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Register scratch2); |
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// Debugging |
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// only if +VerifyOops && state == atos |
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void verify_oop(Register reg, TosState state = atos); |
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// only if +VerifyFPU && (state == ftos || state == dtos) |
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void verify_FPU(int stack_depth, TosState state = ftos); |
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#endif // !CC_INTERP |
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typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode; |
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// support for jvmti/dtrace |
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void notify_method_entry(); |
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void notify_method_exit(TosState state, NotifyMethodExitMode mode); |
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}; |