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annotate src/cpu/x86/vm/interp_masm_x86_64.hpp @ 6392:4f7b8550daf8
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author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Fri, 14 Sep 2012 13:50:49 +0200 |
parents | 2fe087c3e814 |
children | da91efe96a93 |
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0 | 1 /* |
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2 * Copyright (c) 2003, 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_64_HPP |
26 #define CPU_X86_VM_INTERP_MASM_X86_64_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 | |
304 | 34 class InterpreterMacroAssembler: public MacroAssembler { |
35 #ifndef CC_INTERP | |
0 | 36 protected: |
37 // Interpreter specific version of call_VM_base | |
38 virtual void call_VM_leaf_base(address entry_point, | |
39 int number_of_arguments); | |
40 | |
41 virtual void call_VM_base(Register oop_result, | |
42 Register java_thread, | |
43 Register last_java_sp, | |
44 address entry_point, | |
45 int number_of_arguments, | |
46 bool check_exceptions); | |
47 | |
48 virtual void check_and_handle_popframe(Register java_thread); | |
49 virtual void check_and_handle_earlyret(Register java_thread); | |
50 | |
51 // base routine for all dispatches | |
52 void dispatch_base(TosState state, address* table, bool verifyoop = true); | |
304 | 53 #endif // CC_INTERP |
0 | 54 |
55 public: | |
304 | 56 InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code) {} |
0 | 57 |
58 void load_earlyret_value(TosState state); | |
59 | |
304 | 60 #ifdef CC_INTERP |
61 void save_bcp() { /* not needed in c++ interpreter and harmless */ } | |
62 void restore_bcp() { /* not needed in c++ interpreter and harmless */ } | |
63 | |
64 // Helpers for runtime call arguments/results | |
65 void get_method(Register reg); | |
66 | |
67 #else | |
68 | |
0 | 69 // Interpreter-specific registers |
304 | 70 void save_bcp() { |
71 movptr(Address(rbp, frame::interpreter_frame_bcx_offset * wordSize), r13); | |
0 | 72 } |
73 | |
304 | 74 void restore_bcp() { |
75 movptr(r13, Address(rbp, frame::interpreter_frame_bcx_offset * wordSize)); | |
0 | 76 } |
77 | |
304 | 78 void restore_locals() { |
79 movptr(r14, Address(rbp, frame::interpreter_frame_locals_offset * wordSize)); | |
0 | 80 } |
81 | |
82 // Helpers for runtime call arguments/results | |
304 | 83 void get_method(Register reg) { |
84 movptr(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); | |
0 | 85 } |
86 | |
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87 void get_const(Register reg) { |
0 | 88 get_method(reg); |
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89 movptr(reg, Address(reg, methodOopDesc::const_offset())); |
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90 } |
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91 |
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92 void get_constant_pool(Register reg) { |
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93 get_const(reg); |
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94 movptr(reg, Address(reg, constMethodOopDesc::constants_offset())); |
0 | 95 } |
96 | |
304 | 97 void get_constant_pool_cache(Register reg) { |
0 | 98 get_constant_pool(reg); |
304 | 99 movptr(reg, Address(reg, constantPoolOopDesc::cache_offset_in_bytes())); |
0 | 100 } |
101 | |
304 | 102 void get_cpool_and_tags(Register cpool, Register tags) { |
0 | 103 get_constant_pool(cpool); |
304 | 104 movptr(tags, Address(cpool, constantPoolOopDesc::tags_offset_in_bytes())); |
0 | 105 } |
106 | |
107 void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset); | |
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108 void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, size_t index_size = sizeof(u2)); |
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109 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)); |
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110 void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2)); |
1565 | 111 void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2)); |
0 | 112 |
113 void pop_ptr(Register r = rax); | |
114 void pop_i(Register r = rax); | |
115 void pop_l(Register r = rax); | |
116 void pop_f(XMMRegister r = xmm0); | |
117 void pop_d(XMMRegister r = xmm0); | |
118 void push_ptr(Register r = rax); | |
119 void push_i(Register r = rax); | |
120 void push_l(Register r = rax); | |
121 void push_f(XMMRegister r = xmm0); | |
122 void push_d(XMMRegister r = xmm0); | |
123 | |
304 | 124 void pop(Register r ) { ((MacroAssembler*)this)->pop(r); } |
125 | |
126 void push(Register r ) { ((MacroAssembler*)this)->push(r); } | |
127 void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); } | |
128 | |
0 | 129 void pop(TosState state); // transition vtos -> state |
130 void push(TosState state); // transition state -> vtos | |
131 | |
1506 | 132 void empty_expression_stack() { |
304 | 133 movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize)); |
0 | 134 // NULL last_sp until next java call |
304 | 135 movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
0 | 136 } |
137 | |
1506 | 138 // Helpers for swap and dup |
139 void load_ptr(int n, Register val); | |
140 void store_ptr(int n, Register val); | |
141 | |
0 | 142 // Generate a subtype check: branch to ok_is_subtype if sub_klass is |
143 // a subtype of super_klass. | |
144 void gen_subtype_check( Register sub_klass, Label &ok_is_subtype ); | |
145 | |
146 // Dispatching | |
147 void dispatch_prolog(TosState state, int step = 0); | |
148 void dispatch_epilog(TosState state, int step = 0); | |
149 // dispatch via ebx (assume ebx is loaded already) | |
150 void dispatch_only(TosState state); | |
151 // dispatch normal table via ebx (assume ebx is loaded already) | |
152 void dispatch_only_normal(TosState state); | |
153 void dispatch_only_noverify(TosState state); | |
154 // load ebx from [esi + step] and dispatch via ebx | |
155 void dispatch_next(TosState state, int step = 0); | |
156 // load ebx from [esi] and dispatch via ebx and table | |
157 void dispatch_via (TosState state, address* table); | |
158 | |
159 // jump to an invoked target | |
710 | 160 void prepare_to_jump_from_interpreted(); |
0 | 161 void jump_from_interpreted(Register method, Register temp); |
162 | |
163 | |
164 // Returning from interpreted functions | |
165 // | |
166 // Removes the current activation (incl. unlocking of monitors) | |
167 // and sets up the return address. This code is also used for | |
168 // exception unwindwing. In that case, we do not want to throw | |
169 // IllegalMonitorStateExceptions, since that might get us into an | |
170 // infinite rethrow exception loop. | |
171 // Additionally this code is used for popFrame and earlyReturn. | |
172 // In popFrame case we want to skip throwing an exception, | |
173 // installing an exception, and notifying jvmdi. | |
174 // In earlyReturn case we only want to skip throwing an exception | |
175 // and installing an exception. | |
176 void remove_activation(TosState state, Register ret_addr, | |
177 bool throw_monitor_exception = true, | |
178 bool install_monitor_exception = true, | |
179 bool notify_jvmdi = true); | |
304 | 180 #endif // CC_INTERP |
0 | 181 |
182 // Object locking | |
183 void lock_object (Register lock_reg); | |
184 void unlock_object(Register lock_reg); | |
185 | |
304 | 186 #ifndef CC_INTERP |
187 | |
0 | 188 // Interpreter profiling operations |
189 void set_method_data_pointer_for_bcp(); | |
190 void test_method_data_pointer(Register mdp, Label& zero_continue); | |
191 void verify_method_data_pointer(); | |
192 | |
193 void set_mdp_data_at(Register mdp_in, int constant, Register value); | |
194 void increment_mdp_data_at(Address data, bool decrement = false); | |
195 void increment_mdp_data_at(Register mdp_in, int constant, | |
196 bool decrement = false); | |
197 void increment_mdp_data_at(Register mdp_in, Register reg, int constant, | |
198 bool decrement = false); | |
1783 | 199 void increment_mask_and_jump(Address counter_addr, |
200 int increment, int mask, | |
201 Register scratch, bool preloaded, | |
202 Condition cond, Label* where); | |
0 | 203 void set_mdp_flag_at(Register mdp_in, int flag_constant); |
204 void test_mdp_data_at(Register mdp_in, int offset, Register value, | |
205 Register test_value_out, | |
206 Label& not_equal_continue); | |
207 | |
208 void record_klass_in_profile(Register receiver, Register mdp, | |
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209 Register reg2, bool is_virtual_call); |
0 | 210 void record_klass_in_profile_helper(Register receiver, Register mdp, |
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211 Register reg2, int start_row, |
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212 Label& done, bool is_virtual_call); |
0 | 213 |
214 void update_mdp_by_offset(Register mdp_in, int offset_of_offset); | |
215 void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp); | |
216 void update_mdp_by_constant(Register mdp_in, int constant); | |
217 void update_mdp_for_ret(Register return_bci); | |
218 | |
219 void profile_taken_branch(Register mdp, Register bumped_count); | |
220 void profile_not_taken_branch(Register mdp); | |
221 void profile_call(Register mdp); | |
222 void profile_final_call(Register mdp); | |
223 void profile_virtual_call(Register receiver, Register mdp, | |
1108 | 224 Register scratch2, |
225 bool receiver_can_be_null = false); | |
0 | 226 void profile_ret(Register return_bci, Register mdp); |
227 void profile_null_seen(Register mdp); | |
228 void profile_typecheck(Register mdp, Register klass, Register scratch); | |
229 void profile_typecheck_failed(Register mdp); | |
230 void profile_switch_default(Register mdp); | |
231 void profile_switch_case(Register index_in_scratch, Register mdp, | |
232 Register scratch2); | |
233 | |
234 // Debugging | |
235 // only if +VerifyOops && state == atos | |
236 void verify_oop(Register reg, TosState state = atos); | |
237 // only if +VerifyFPU && (state == ftos || state == dtos) | |
238 void verify_FPU(int stack_depth, TosState state = ftos); | |
239 | |
304 | 240 #endif // !CC_INTERP |
241 | |
0 | 242 typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode; |
243 | |
244 // support for jvmti/dtrace | |
245 void notify_method_entry(); | |
246 void notify_method_exit(TosState state, NotifyMethodExitMode mode); | |
247 }; | |
1972 | 248 |
249 #endif // CPU_X86_VM_INTERP_MASM_X86_64_HPP |