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annotate src/cpu/x86/vm/interp_masm_x86_32.hpp @ 3474:b9f76db5ac53
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author | Gilles Duboscq <gilles.duboscq@oracle.com> |
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date | Mon, 01 Aug 2011 13:56:56 +0200 |
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children | fdb992d83a87 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, 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 | |
28 #include "assembler_x86.inline.hpp" | |
29 #include "interpreter/invocationCounter.hpp" | |
30 | |
0 | 31 // This file specializes the assember with interpreter-specific macros |
32 | |
33 | |
34 class InterpreterMacroAssembler: public MacroAssembler { | |
35 #ifndef CC_INTERP | |
36 protected: | |
37 // Interpreter specific version of call_VM_base | |
38 virtual void call_VM_leaf_base( | |
39 address entry_point, | |
40 int number_of_arguments | |
41 ); | |
42 | |
43 virtual void call_VM_base( | |
44 Register oop_result, | |
45 Register java_thread, | |
46 Register last_java_sp, | |
47 address entry_point, | |
48 int number_of_arguments, | |
49 bool check_exceptions | |
50 ); | |
51 | |
52 virtual void check_and_handle_popframe(Register java_thread); | |
53 virtual void check_and_handle_earlyret(Register java_thread); | |
54 | |
55 // base routine for all dispatches | |
56 void dispatch_base(TosState state, address* table, bool verifyoop = true); | |
57 #endif /* CC_INTERP */ | |
58 | |
59 public: | |
60 InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code) {} | |
61 | |
62 void load_earlyret_value(TosState state); | |
63 | |
64 // Interpreter-specific registers | |
65 #ifdef CC_INTERP | |
66 void save_bcp() { /* not needed in c++ interpreter and harmless */ } | |
67 void restore_bcp() { /* not needed in c++ interpreter and harmless */ } | |
68 | |
69 // Helpers for runtime call arguments/results | |
70 void get_method(Register reg); | |
71 | |
72 #else | |
73 | |
304 | 74 void save_bcp() { movptr(Address(rbp, frame::interpreter_frame_bcx_offset * wordSize), rsi); } |
75 void restore_bcp() { movptr(rsi, Address(rbp, frame::interpreter_frame_bcx_offset * wordSize)); } | |
76 void restore_locals() { movptr(rdi, Address(rbp, frame::interpreter_frame_locals_offset * wordSize)); } | |
0 | 77 |
78 // Helpers for runtime call arguments/results | |
304 | 79 void get_method(Register reg) { movptr(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); } |
80 void get_constant_pool(Register reg) { get_method(reg); movptr(reg, Address(reg, methodOopDesc::constants_offset())); } | |
81 void get_constant_pool_cache(Register reg) { get_constant_pool(reg); movptr(reg, Address(reg, constantPoolOopDesc::cache_offset_in_bytes())); } | |
82 void get_cpool_and_tags(Register cpool, Register tags) { get_constant_pool(cpool); movptr(tags, Address(cpool, constantPoolOopDesc::tags_offset_in_bytes())); | |
0 | 83 } |
84 void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset); | |
1565 | 85 void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, size_t index_size = sizeof(u2)); |
86 void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2)); | |
87 void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2)); | |
0 | 88 |
89 // Expression stack | |
90 void f2ieee(); // truncate ftos to 32bits | |
91 void d2ieee(); // truncate dtos to 64bits | |
92 | |
93 void pop_ptr(Register r = rax); | |
94 void pop_i(Register r = rax); | |
95 void pop_l(Register lo = rax, Register hi = rdx); | |
96 void pop_f(); | |
97 void pop_d(); | |
98 | |
99 void push_ptr(Register r = rax); | |
100 void push_i(Register r = rax); | |
101 void push_l(Register lo = rax, Register hi = rdx); | |
102 void push_d(Register r = rax); | |
103 void push_f(); | |
104 | |
105 void pop(TosState state); // transition vtos -> state | |
106 void push(TosState state); // transition state -> vtos | |
107 | |
304 | 108 void pop(Register r ) { ((MacroAssembler*)this)->pop(r); } |
109 | |
110 void push(Register r ) { ((MacroAssembler*)this)->push(r); } | |
111 void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); } | |
112 | |
113 // These are dummies to prevent surprise implicit conversions to Register | |
114 void pop(void* v ); // Add unimplemented ambiguous method | |
115 void push(void* v ); // Add unimplemented ambiguous method | |
116 | |
1506 | 117 void empty_expression_stack() { |
118 movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize)); | |
119 // NULL last_sp until next java call | |
120 movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD); | |
0 | 121 } |
122 | |
1506 | 123 // Helpers for swap and dup |
124 void load_ptr(int n, Register val); | |
125 void store_ptr(int n, Register val); | |
0 | 126 |
127 // Generate a subtype check: branch to ok_is_subtype if sub_klass is | |
128 // a subtype of super_klass. EAX holds the super_klass. Blows ECX | |
129 // and EDI. Register sub_klass cannot be any of the above. | |
130 void gen_subtype_check( Register sub_klass, Label &ok_is_subtype ); | |
131 | |
132 // Dispatching | |
133 void dispatch_prolog(TosState state, int step = 0); | |
134 void dispatch_epilog(TosState state, int step = 0); | |
135 void dispatch_only(TosState state); // dispatch via rbx, (assume rbx, is loaded already) | |
136 void dispatch_only_normal(TosState state); // dispatch normal table via rbx, (assume rbx, is loaded already) | |
137 void dispatch_only_noverify(TosState state); | |
138 void dispatch_next(TosState state, int step = 0); // load rbx, from [esi + step] and dispatch via rbx, | |
139 void dispatch_via (TosState state, address* table); // load rbx, from [esi] and dispatch via rbx, and table | |
140 | |
141 | |
142 // jump to an invoked target | |
710 | 143 void prepare_to_jump_from_interpreted(); |
0 | 144 void jump_from_interpreted(Register method, Register temp); |
145 | |
146 // Returning from interpreted functions | |
147 // | |
148 // Removes the current activation (incl. unlocking of monitors) | |
149 // and sets up the return address. This code is also used for | |
150 // exception unwindwing. In that case, we do not want to throw | |
151 // IllegalMonitorStateExceptions, since that might get us into an | |
152 // infinite rethrow exception loop. | |
153 // Additionally this code is used for popFrame and earlyReturn. | |
154 // In popFrame case we want to skip throwing an exception, | |
155 // installing an exception, and notifying jvmdi. | |
156 // In earlyReturn case we only want to skip throwing an exception | |
157 // and installing an exception. | |
158 void remove_activation(TosState state, Register ret_addr, | |
159 bool throw_monitor_exception = true, | |
160 bool install_monitor_exception = true, | |
161 bool notify_jvmdi = true); | |
162 #endif /* !CC_INTERP */ | |
163 | |
164 // Debugging | |
165 void verify_oop(Register reg, TosState state = atos); // only if +VerifyOops && state == atos | |
166 #ifndef CC_INTERP | |
167 void verify_FPU(int stack_depth, TosState state = ftos); // only if +VerifyFPU && (state == ftos || state == dtos) | |
168 | |
169 #endif /* !CC_INTERP */ | |
170 | |
171 // Object locking | |
172 void lock_object (Register lock_reg); | |
173 void unlock_object(Register lock_reg); | |
174 | |
175 #ifndef CC_INTERP | |
176 | |
177 // Interpreter profiling operations | |
178 void set_method_data_pointer_for_bcp(); | |
179 void test_method_data_pointer(Register mdp, Label& zero_continue); | |
180 void verify_method_data_pointer(); | |
181 | |
182 void set_mdp_data_at(Register mdp_in, int constant, Register value); | |
183 void increment_mdp_data_at(Address data, bool decrement = false); | |
184 void increment_mdp_data_at(Register mdp_in, int constant, | |
185 bool decrement = false); | |
186 void increment_mdp_data_at(Register mdp_in, Register reg, int constant, | |
187 bool decrement = false); | |
1783 | 188 void increment_mask_and_jump(Address counter_addr, |
189 int increment, int mask, | |
190 Register scratch, bool preloaded, | |
191 Condition cond, Label* where); | |
0 | 192 void set_mdp_flag_at(Register mdp_in, int flag_constant); |
193 void test_mdp_data_at(Register mdp_in, int offset, Register value, | |
194 Register test_value_out, | |
195 Label& not_equal_continue); | |
196 | |
197 void record_klass_in_profile(Register receiver, Register mdp, | |
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198 Register reg2, bool is_virtual_call); |
0 | 199 void record_klass_in_profile_helper(Register receiver, Register mdp, |
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200 Register reg2, int start_row, |
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201 Label& done, bool is_virtual_call); |
0 | 202 |
203 void update_mdp_by_offset(Register mdp_in, int offset_of_offset); | |
204 void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp); | |
205 void update_mdp_by_constant(Register mdp_in, int constant); | |
206 void update_mdp_for_ret(Register return_bci); | |
207 | |
208 void profile_taken_branch(Register mdp, Register bumped_count); | |
209 void profile_not_taken_branch(Register mdp); | |
210 void profile_call(Register mdp); | |
211 void profile_final_call(Register mdp); | |
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212 void profile_virtual_call(Register receiver, Register mdp, Register scratch2, |
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213 bool receiver_can_be_null = false); |
0 | 214 void profile_ret(Register return_bci, Register mdp); |
215 void profile_null_seen(Register mdp); | |
216 void profile_typecheck(Register mdp, Register klass, Register scratch); | |
217 void profile_typecheck_failed(Register mdp); | |
218 void profile_switch_default(Register mdp); | |
219 void profile_switch_case(Register index_in_scratch, Register mdp, Register scratch2); | |
220 | |
221 #endif /* !CC_INTERP */ | |
222 | |
223 typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode; | |
224 | |
225 // support for jvmti | |
226 void notify_method_entry(); | |
227 void notify_method_exit(TosState state, NotifyMethodExitMode mode); | |
228 | |
229 }; | |
1972 | 230 |
231 #endif // CPU_X86_VM_INTERP_MASM_X86_32_HPP |