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annotate src/cpu/x86/vm/interp_masm_x86_32.hpp @ 606:19962e74284f
6811384: MacroAssembler::serialize_memory may touch next page on amd64
Reviewed-by: kvn, phh, twisti
author | never |
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date | Sun, 01 Mar 2009 20:49:46 -0800 |
parents | db4caa99ef11 |
children | 0fbdb4381b99 |
rev | line source |
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0 | 1 /* |
337 | 2 * Copyright 1997-2008 Sun Microsystems, Inc. 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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 // This file specializes the assember with interpreter-specific macros | |
26 | |
27 | |
28 class InterpreterMacroAssembler: public MacroAssembler { | |
29 #ifndef CC_INTERP | |
30 protected: | |
31 // Interpreter specific version of call_VM_base | |
32 virtual void call_VM_leaf_base( | |
33 address entry_point, | |
34 int number_of_arguments | |
35 ); | |
36 | |
37 virtual void call_VM_base( | |
38 Register oop_result, | |
39 Register java_thread, | |
40 Register last_java_sp, | |
41 address entry_point, | |
42 int number_of_arguments, | |
43 bool check_exceptions | |
44 ); | |
45 | |
46 virtual void check_and_handle_popframe(Register java_thread); | |
47 virtual void check_and_handle_earlyret(Register java_thread); | |
48 | |
49 // base routine for all dispatches | |
50 void dispatch_base(TosState state, address* table, bool verifyoop = true); | |
51 #endif /* CC_INTERP */ | |
52 | |
53 public: | |
54 InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code) {} | |
55 | |
56 void load_earlyret_value(TosState state); | |
57 | |
58 // Interpreter-specific registers | |
59 #ifdef CC_INTERP | |
60 void save_bcp() { /* not needed in c++ interpreter and harmless */ } | |
61 void restore_bcp() { /* not needed in c++ interpreter and harmless */ } | |
62 | |
63 // Helpers for runtime call arguments/results | |
64 void get_method(Register reg); | |
65 | |
66 #else | |
67 | |
304 | 68 void save_bcp() { movptr(Address(rbp, frame::interpreter_frame_bcx_offset * wordSize), rsi); } |
69 void restore_bcp() { movptr(rsi, Address(rbp, frame::interpreter_frame_bcx_offset * wordSize)); } | |
70 void restore_locals() { movptr(rdi, Address(rbp, frame::interpreter_frame_locals_offset * wordSize)); } | |
0 | 71 |
72 // Helpers for runtime call arguments/results | |
304 | 73 void get_method(Register reg) { movptr(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); } |
74 void get_constant_pool(Register reg) { get_method(reg); movptr(reg, Address(reg, methodOopDesc::constants_offset())); } | |
75 void get_constant_pool_cache(Register reg) { get_constant_pool(reg); movptr(reg, Address(reg, constantPoolOopDesc::cache_offset_in_bytes())); } | |
76 void get_cpool_and_tags(Register cpool, Register tags) { get_constant_pool(cpool); movptr(tags, Address(cpool, constantPoolOopDesc::tags_offset_in_bytes())); | |
0 | 77 } |
78 void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset); | |
79 void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset); | |
80 void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset); | |
81 | |
82 // Expression stack | |
83 void f2ieee(); // truncate ftos to 32bits | |
84 void d2ieee(); // truncate dtos to 64bits | |
85 | |
86 void pop_ptr(Register r = rax); | |
87 void pop_ptr(Register r, Register tag); | |
88 void pop_i(Register r = rax); | |
89 void pop_l(Register lo = rax, Register hi = rdx); | |
90 void pop_f(); | |
91 void pop_d(); | |
92 void pop_ftos_to_rsp(); | |
93 void pop_dtos_to_rsp(); | |
94 | |
95 void push_ptr(Register r = rax); | |
96 void push_ptr(Register r, Register tag); | |
97 void push_i(Register r = rax); | |
98 void push_l(Register lo = rax, Register hi = rdx); | |
99 void push_d(Register r = rax); | |
100 void push_f(); | |
101 | |
102 void pop(TosState state); // transition vtos -> state | |
103 void push(TosState state); // transition state -> vtos | |
104 | |
304 | 105 void pop(Register r ) { ((MacroAssembler*)this)->pop(r); } |
106 | |
107 void push(Register r ) { ((MacroAssembler*)this)->push(r); } | |
108 void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); } | |
109 | |
110 // These are dummies to prevent surprise implicit conversions to Register | |
111 void pop(void* v ); // Add unimplemented ambiguous method | |
112 void push(void* v ); // Add unimplemented ambiguous method | |
113 | |
0 | 114 DEBUG_ONLY(void verify_stack_tag(frame::Tag t);) |
115 | |
304 | 116 #endif // CC_INTERP |
117 | |
0 | 118 #ifndef CC_INTERP |
119 | |
120 void empty_expression_stack() { | |
304 | 121 movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize)); |
0 | 122 // NULL last_sp until next java call |
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123 movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD); |
0 | 124 } |
125 | |
126 // Tagged stack helpers for swap and dup | |
127 void load_ptr_and_tag(int n, Register val, Register tag); | |
128 void store_ptr_and_tag(int n, Register val, Register tag); | |
129 | |
130 // Tagged Local support | |
131 | |
132 void tag_local(frame::Tag tag, int n); | |
133 void tag_local(Register tag, int n); | |
134 void tag_local(frame::Tag tag, Register idx); | |
135 void tag_local(Register tag, Register idx); | |
136 | |
137 #ifdef ASSERT | |
138 void verify_local_tag(frame::Tag tag, int n); | |
139 void verify_local_tag(frame::Tag tag, Register idx); | |
140 #endif // ASSERT | |
141 | |
142 // Super call_VM calls - correspond to MacroAssembler::call_VM(_leaf) calls | |
143 void super_call_VM_leaf(address entry_point); | |
144 void super_call_VM_leaf(address entry_point, Register arg_1); | |
145 void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2); | |
146 void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2, Register arg_3); | |
147 | |
148 // Generate a subtype check: branch to ok_is_subtype if sub_klass is | |
149 // a subtype of super_klass. EAX holds the super_klass. Blows ECX | |
150 // and EDI. Register sub_klass cannot be any of the above. | |
151 void gen_subtype_check( Register sub_klass, Label &ok_is_subtype ); | |
152 | |
153 // Dispatching | |
154 void dispatch_prolog(TosState state, int step = 0); | |
155 void dispatch_epilog(TosState state, int step = 0); | |
156 void dispatch_only(TosState state); // dispatch via rbx, (assume rbx, is loaded already) | |
157 void dispatch_only_normal(TosState state); // dispatch normal table via rbx, (assume rbx, is loaded already) | |
158 void dispatch_only_noverify(TosState state); | |
159 void dispatch_next(TosState state, int step = 0); // load rbx, from [esi + step] and dispatch via rbx, | |
160 void dispatch_via (TosState state, address* table); // load rbx, from [esi] and dispatch via rbx, and table | |
161 | |
162 | |
163 // jump to an invoked target | |
164 void jump_from_interpreted(Register method, Register temp); | |
165 | |
166 // Returning from interpreted functions | |
167 // | |
168 // Removes the current activation (incl. unlocking of monitors) | |
169 // and sets up the return address. This code is also used for | |
170 // exception unwindwing. In that case, we do not want to throw | |
171 // IllegalMonitorStateExceptions, since that might get us into an | |
172 // infinite rethrow exception loop. | |
173 // Additionally this code is used for popFrame and earlyReturn. | |
174 // In popFrame case we want to skip throwing an exception, | |
175 // installing an exception, and notifying jvmdi. | |
176 // In earlyReturn case we only want to skip throwing an exception | |
177 // and installing an exception. | |
178 void remove_activation(TosState state, Register ret_addr, | |
179 bool throw_monitor_exception = true, | |
180 bool install_monitor_exception = true, | |
181 bool notify_jvmdi = true); | |
182 #endif /* !CC_INTERP */ | |
183 | |
184 // Debugging | |
185 void verify_oop(Register reg, TosState state = atos); // only if +VerifyOops && state == atos | |
186 #ifndef CC_INTERP | |
187 void verify_FPU(int stack_depth, TosState state = ftos); // only if +VerifyFPU && (state == ftos || state == dtos) | |
188 | |
189 #endif /* !CC_INTERP */ | |
190 | |
191 // Object locking | |
192 void lock_object (Register lock_reg); | |
193 void unlock_object(Register lock_reg); | |
194 | |
195 #ifndef CC_INTERP | |
196 | |
197 // Interpreter profiling operations | |
198 void set_method_data_pointer_for_bcp(); | |
199 void test_method_data_pointer(Register mdp, Label& zero_continue); | |
200 void verify_method_data_pointer(); | |
201 | |
202 void set_mdp_data_at(Register mdp_in, int constant, Register value); | |
203 void increment_mdp_data_at(Address data, bool decrement = false); | |
204 void increment_mdp_data_at(Register mdp_in, int constant, | |
205 bool decrement = false); | |
206 void increment_mdp_data_at(Register mdp_in, Register reg, int constant, | |
207 bool decrement = false); | |
208 void set_mdp_flag_at(Register mdp_in, int flag_constant); | |
209 void test_mdp_data_at(Register mdp_in, int offset, Register value, | |
210 Register test_value_out, | |
211 Label& not_equal_continue); | |
212 | |
213 void record_klass_in_profile(Register receiver, Register mdp, | |
214 Register reg2); | |
215 void record_klass_in_profile_helper(Register receiver, Register mdp, | |
216 Register reg2, | |
217 int start_row, Label& done); | |
218 | |
219 void update_mdp_by_offset(Register mdp_in, int offset_of_offset); | |
220 void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp); | |
221 void update_mdp_by_constant(Register mdp_in, int constant); | |
222 void update_mdp_for_ret(Register return_bci); | |
223 | |
224 void profile_taken_branch(Register mdp, Register bumped_count); | |
225 void profile_not_taken_branch(Register mdp); | |
226 void profile_call(Register mdp); | |
227 void profile_final_call(Register mdp); | |
228 void profile_virtual_call(Register receiver, Register mdp, Register scratch2); | |
229 void profile_ret(Register return_bci, Register mdp); | |
230 void profile_null_seen(Register mdp); | |
231 void profile_typecheck(Register mdp, Register klass, Register scratch); | |
232 void profile_typecheck_failed(Register mdp); | |
233 void profile_switch_default(Register mdp); | |
234 void profile_switch_case(Register index_in_scratch, Register mdp, Register scratch2); | |
235 | |
236 #endif /* !CC_INTERP */ | |
237 | |
238 typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode; | |
239 | |
240 // support for jvmti | |
241 void notify_method_entry(); | |
242 void notify_method_exit(TosState state, NotifyMethodExitMode mode); | |
243 | |
244 }; |