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annotate src/cpu/x86/vm/interp_masm_x86_32.hpp @ 7780:550c952f5d3f
Merge
author | Christian Humer <christian.humer@gmail.com> |
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date | Tue, 12 Feb 2013 16:06:20 +0100 |
parents | cd3d6a6b95d9 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef CPU_X86_VM_INTERP_MASM_X86_32_HPP |
26 #define CPU_X86_VM_INTERP_MASM_X86_32_HPP | |
27 | |
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28 #include "asm/macroAssembler.hpp" |
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29 #include "asm/macroAssembler.inline.hpp" |
1972 | 30 #include "interpreter/invocationCounter.hpp" |
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31 #include "runtime/frame.hpp" |
1972 | 32 |
0 | 33 // This file specializes the assember with interpreter-specific macros |
34 | |
35 | |
36 class InterpreterMacroAssembler: public MacroAssembler { | |
37 #ifndef CC_INTERP | |
38 protected: | |
39 // Interpreter specific version of call_VM_base | |
40 virtual void call_VM_leaf_base( | |
41 address entry_point, | |
42 int number_of_arguments | |
43 ); | |
44 | |
45 virtual void call_VM_base( | |
46 Register oop_result, | |
47 Register java_thread, | |
48 Register last_java_sp, | |
49 address entry_point, | |
50 int number_of_arguments, | |
51 bool check_exceptions | |
52 ); | |
53 | |
54 virtual void check_and_handle_popframe(Register java_thread); | |
55 virtual void check_and_handle_earlyret(Register java_thread); | |
56 | |
57 // base routine for all dispatches | |
58 void dispatch_base(TosState state, address* table, bool verifyoop = true); | |
59 #endif /* CC_INTERP */ | |
60 | |
61 public: | |
62 InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code) {} | |
63 | |
64 void load_earlyret_value(TosState state); | |
65 | |
66 // Interpreter-specific registers | |
67 #ifdef CC_INTERP | |
68 void save_bcp() { /* not needed in c++ interpreter and harmless */ } | |
69 void restore_bcp() { /* not needed in c++ interpreter and harmless */ } | |
70 | |
71 // Helpers for runtime call arguments/results | |
72 void get_method(Register reg); | |
73 | |
74 #else | |
75 | |
304 | 76 void save_bcp() { movptr(Address(rbp, frame::interpreter_frame_bcx_offset * wordSize), rsi); } |
77 void restore_bcp() { movptr(rsi, Address(rbp, frame::interpreter_frame_bcx_offset * wordSize)); } | |
78 void restore_locals() { movptr(rdi, Address(rbp, frame::interpreter_frame_locals_offset * wordSize)); } | |
0 | 79 |
80 // Helpers for runtime call arguments/results | |
304 | 81 void get_method(Register reg) { movptr(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); } |
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82 void get_const(Register reg) { get_method(reg); movptr(reg, Address(reg, Method::const_offset())); } |
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83 void get_constant_pool(Register reg) { get_const(reg); movptr(reg, Address(reg, ConstMethod::constants_offset())); } |
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84 void get_constant_pool_cache(Register reg) { get_constant_pool(reg); movptr(reg, Address(reg, ConstantPool::cache_offset_in_bytes())); } |
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85 void get_cpool_and_tags(Register cpool, Register tags) { get_constant_pool(cpool); movptr(tags, Address(cpool, ConstantPool::tags_offset_in_bytes())); |
0 | 86 } |
87 void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset); | |
1565 | 88 void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, size_t index_size = sizeof(u2)); |
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89 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)); |
1565 | 90 void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2)); |
91 void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2)); | |
0 | 92 |
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93 // load cpool->resolved_references(index); |
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94 void load_resolved_reference_at_index(Register result, Register index); |
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95 |
0 | 96 // Expression stack |
97 void f2ieee(); // truncate ftos to 32bits | |
98 void d2ieee(); // truncate dtos to 64bits | |
99 | |
100 void pop_ptr(Register r = rax); | |
101 void pop_i(Register r = rax); | |
102 void pop_l(Register lo = rax, Register hi = rdx); | |
103 void pop_f(); | |
104 void pop_d(); | |
105 | |
106 void push_ptr(Register r = rax); | |
107 void push_i(Register r = rax); | |
108 void push_l(Register lo = rax, Register hi = rdx); | |
109 void push_d(Register r = rax); | |
110 void push_f(); | |
111 | |
112 void pop(TosState state); // transition vtos -> state | |
113 void push(TosState state); // transition state -> vtos | |
114 | |
304 | 115 void pop(Register r ) { ((MacroAssembler*)this)->pop(r); } |
116 | |
117 void push(Register r ) { ((MacroAssembler*)this)->push(r); } | |
118 void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); } | |
119 | |
120 // These are dummies to prevent surprise implicit conversions to Register | |
121 void pop(void* v ); // Add unimplemented ambiguous method | |
122 void push(void* v ); // Add unimplemented ambiguous method | |
123 | |
1506 | 124 void empty_expression_stack() { |
125 movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize)); | |
126 // NULL last_sp until next java call | |
127 movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD); | |
0 | 128 } |
129 | |
1506 | 130 // Helpers for swap and dup |
131 void load_ptr(int n, Register val); | |
132 void store_ptr(int n, Register val); | |
0 | 133 |
134 // Generate a subtype check: branch to ok_is_subtype if sub_klass is | |
135 // a subtype of super_klass. EAX holds the super_klass. Blows ECX | |
136 // and EDI. Register sub_klass cannot be any of the above. | |
137 void gen_subtype_check( Register sub_klass, Label &ok_is_subtype ); | |
138 | |
139 // Dispatching | |
140 void dispatch_prolog(TosState state, int step = 0); | |
141 void dispatch_epilog(TosState state, int step = 0); | |
142 void dispatch_only(TosState state); // dispatch via rbx, (assume rbx, is loaded already) | |
143 void dispatch_only_normal(TosState state); // dispatch normal table via rbx, (assume rbx, is loaded already) | |
144 void dispatch_only_noverify(TosState state); | |
145 void dispatch_next(TosState state, int step = 0); // load rbx, from [esi + step] and dispatch via rbx, | |
146 void dispatch_via (TosState state, address* table); // load rbx, from [esi] and dispatch via rbx, and table | |
147 | |
148 | |
149 // jump to an invoked target | |
710 | 150 void prepare_to_jump_from_interpreted(); |
0 | 151 void jump_from_interpreted(Register method, Register temp); |
152 | |
153 // Returning from interpreted functions | |
154 // | |
155 // Removes the current activation (incl. unlocking of monitors) | |
156 // and sets up the return address. This code is also used for | |
157 // exception unwindwing. In that case, we do not want to throw | |
158 // IllegalMonitorStateExceptions, since that might get us into an | |
159 // infinite rethrow exception loop. | |
160 // Additionally this code is used for popFrame and earlyReturn. | |
161 // In popFrame case we want to skip throwing an exception, | |
162 // installing an exception, and notifying jvmdi. | |
163 // In earlyReturn case we only want to skip throwing an exception | |
164 // and installing an exception. | |
165 void remove_activation(TosState state, Register ret_addr, | |
166 bool throw_monitor_exception = true, | |
167 bool install_monitor_exception = true, | |
168 bool notify_jvmdi = true); | |
169 #endif /* !CC_INTERP */ | |
170 | |
171 // Debugging | |
172 void verify_oop(Register reg, TosState state = atos); // only if +VerifyOops && state == atos | |
173 #ifndef CC_INTERP | |
174 void verify_FPU(int stack_depth, TosState state = ftos); // only if +VerifyFPU && (state == ftos || state == dtos) | |
175 | |
176 #endif /* !CC_INTERP */ | |
177 | |
178 // Object locking | |
179 void lock_object (Register lock_reg); | |
180 void unlock_object(Register lock_reg); | |
181 | |
182 #ifndef CC_INTERP | |
183 | |
184 // Interpreter profiling operations | |
185 void set_method_data_pointer_for_bcp(); | |
186 void test_method_data_pointer(Register mdp, Label& zero_continue); | |
187 void verify_method_data_pointer(); | |
188 | |
189 void set_mdp_data_at(Register mdp_in, int constant, Register value); | |
190 void increment_mdp_data_at(Address data, bool decrement = false); | |
191 void increment_mdp_data_at(Register mdp_in, int constant, | |
192 bool decrement = false); | |
193 void increment_mdp_data_at(Register mdp_in, Register reg, int constant, | |
194 bool decrement = false); | |
1783 | 195 void increment_mask_and_jump(Address counter_addr, |
196 int increment, int mask, | |
197 Register scratch, bool preloaded, | |
198 Condition cond, Label* where); | |
0 | 199 void set_mdp_flag_at(Register mdp_in, int flag_constant); |
200 void test_mdp_data_at(Register mdp_in, int offset, Register value, | |
201 Register test_value_out, | |
202 Label& not_equal_continue); | |
203 | |
204 void record_klass_in_profile(Register receiver, Register mdp, | |
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205 Register reg2, bool is_virtual_call); |
0 | 206 void record_klass_in_profile_helper(Register receiver, Register mdp, |
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207 Register reg2, int start_row, |
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208 Label& done, bool is_virtual_call); |
0 | 209 |
210 void update_mdp_by_offset(Register mdp_in, int offset_of_offset); | |
211 void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp); | |
212 void update_mdp_by_constant(Register mdp_in, int constant); | |
213 void update_mdp_for_ret(Register return_bci); | |
214 | |
215 void profile_taken_branch(Register mdp, Register bumped_count); | |
216 void profile_not_taken_branch(Register mdp); | |
217 void profile_call(Register mdp); | |
218 void profile_final_call(Register mdp); | |
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219 void profile_virtual_call(Register receiver, Register mdp, Register scratch2, |
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220 bool receiver_can_be_null = false); |
0 | 221 void profile_ret(Register return_bci, Register mdp); |
222 void profile_null_seen(Register mdp); | |
223 void profile_typecheck(Register mdp, Register klass, Register scratch); | |
224 void profile_typecheck_failed(Register mdp); | |
225 void profile_switch_default(Register mdp); | |
226 void profile_switch_case(Register index_in_scratch, Register mdp, Register scratch2); | |
227 | |
228 #endif /* !CC_INTERP */ | |
229 | |
230 typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode; | |
231 | |
232 // support for jvmti | |
233 void notify_method_entry(); | |
234 void notify_method_exit(TosState state, NotifyMethodExitMode mode); | |
235 | |
236 }; | |
1972 | 237 |
238 #endif // CPU_X86_VM_INTERP_MASM_X86_32_HPP |