46
47 // [pointer to locals ] = locals() locals_offset
48 // [constant pool cache ] = cache() cache_offset
49
50 // [methodData ] = mdp() mdx_offset
51 // [methodOop ] = method() method_offset
52
53 // [last esp ] = last_sp() last_sp_offset
54 // [old stack pointer ] (sender_sp) sender_sp_offset
55
56 // [old frame pointer ] <- fp = link()
57 // [return pc ]
58
59 // [last sp ]
60 // [oop temp ] (only for native calls)
61
62 // [locals and parameters ]
63 // <- sender sp
64 // ------------------------------ Asm interpreter ----------------------------------------
65
66 // ------------------------------ C++ interpreter ----------------------------------------
67 //
68 // Layout of C++ interpreter frame: (While executing in BytecodeInterpreter::run)
69 //
70 // <- SP (current esp/rsp)
71 // [local variables ] BytecodeInterpreter::run local variables
72 // ... BytecodeInterpreter::run local variables
73 // [local variables ] BytecodeInterpreter::run local variables
74 // [old frame pointer ] fp [ BytecodeInterpreter::run's ebp/rbp ]
75 // [return pc ] (return to frame manager)
76 // [interpreter_state* ] (arg to BytecodeInterpreter::run) --------------
77 // [expression stack ] <- last_Java_sp |
78 // [... ] * <- interpreter_state.stack |
79 // [expression stack ] * <- interpreter_state.stack_base |
80 // [monitors ] \ |
81 // ... | monitor block size |
82 // [monitors ] / <- interpreter_state.monitor_base |
83 // [struct interpretState ] <-----------------------------------------|
84 // [return pc ] (return to callee of frame manager [1]
85 // [locals and parameters ]
86 // <- sender sp
87
88 // [1] When the c++ interpreter calls a new method it returns to the frame
89 // manager which allocates a new frame on the stack. In that case there
90 // is no real callee of this newly allocated frame. The frame manager is
91 // aware of the additional frame(s) and will pop them as nested calls
92 // complete. Howevers tTo make it look good in the debugger the frame
93 // manager actually installs a dummy pc pointing to RecursiveInterpreterActivation
94 // with a fake interpreter_state* parameter to make it easy to debug
95 // nested calls.
96
97 // Note that contrary to the layout for the assembly interpreter the
98 // expression stack allocated for the C++ interpreter is full sized.
99 // However this is not as bad as it seems as the interpreter frame_manager
100 // will truncate the unused space on succesive method calls.
101 //
102 // ------------------------------ C++ interpreter ----------------------------------------
103
104 public:
105 enum {
106 pc_return_offset = 0,
107 // All frames
108 link_offset = 0,
109 return_addr_offset = 1,
110 sender_sp_offset = 2,
111
112 #ifndef CC_INTERP
113
114 // Interpreter frames
115 interpreter_frame_oop_temp_offset = 3, // for native calls only
116
117 interpreter_frame_sender_sp_offset = -1,
118 // outgoing sp before a call to an invoked method
119 interpreter_frame_last_sp_offset = interpreter_frame_sender_sp_offset - 1,
120 interpreter_frame_method_offset = interpreter_frame_last_sp_offset - 1,
121 interpreter_frame_mdp_offset = interpreter_frame_method_offset - 1,
122 interpreter_frame_cache_offset = interpreter_frame_mdp_offset - 1,
123 interpreter_frame_locals_offset = interpreter_frame_cache_offset - 1,
124 interpreter_frame_bcp_offset = interpreter_frame_locals_offset - 1,
125 interpreter_frame_initial_sp_offset = interpreter_frame_bcp_offset - 1,
126
127 interpreter_frame_monitor_block_top_offset = interpreter_frame_initial_sp_offset,
128 interpreter_frame_monitor_block_bottom_offset = interpreter_frame_initial_sp_offset,
129
130 #endif // CC_INTERP
131
132 // Entry frames
133 // n.b. these values are determined by the layout defined in
134 // stubGenerator for the Java call stub
135 entry_frame_after_call_words = 27,
136 entry_frame_call_wrapper_offset = -8,
137
138 // we don't need a save area
139 arg_reg_save_area_bytes = 0
140
141 };
142
143 intptr_t ptr_at(int offset) const {
144 return *ptr_at_addr(offset);
145 }
146
147 void ptr_at_put(int offset, intptr_t value) {
148 *ptr_at_addr(offset) = value;
149 }
150
151 private:
176 frame(intptr_t* sp, intptr_t* fp, address pc);
177
178 frame(intptr_t* sp, intptr_t* unextended_sp, intptr_t* fp, address pc);
179
180 frame(intptr_t* sp, intptr_t* fp);
181
182 void init(intptr_t* sp, intptr_t* fp, address pc);
183
184 // accessors for the instance variables
185 // Note: not necessarily the real 'frame pointer' (see real_fp)
186 intptr_t* fp() const { return _fp; }
187
188 inline address* sender_pc_addr() const;
189
190 // expression stack tos if we are nested in a java call
191 intptr_t* interpreter_frame_last_sp() const;
192
193 // helper to update a map with callee-saved RBP
194 static void update_map_with_saved_link(RegisterMap* map, intptr_t** link_addr);
195
196 #ifndef CC_INTERP
197 // deoptimization support
198 void interpreter_frame_set_last_sp(intptr_t* sp);
199 #endif // CC_INTERP
200
201 #ifdef CC_INTERP
202 inline interpreterState get_interpreterState() const;
203 #endif // CC_INTERP
204
205 #endif // CPU_AARCH64_VM_FRAME_AARCH64_HPP
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46
47 // [pointer to locals ] = locals() locals_offset
48 // [constant pool cache ] = cache() cache_offset
49
50 // [methodData ] = mdp() mdx_offset
51 // [methodOop ] = method() method_offset
52
53 // [last esp ] = last_sp() last_sp_offset
54 // [old stack pointer ] (sender_sp) sender_sp_offset
55
56 // [old frame pointer ] <- fp = link()
57 // [return pc ]
58
59 // [last sp ]
60 // [oop temp ] (only for native calls)
61
62 // [locals and parameters ]
63 // <- sender sp
64 // ------------------------------ Asm interpreter ----------------------------------------
65
66 public:
67 enum {
68 pc_return_offset = 0,
69 // All frames
70 link_offset = 0,
71 return_addr_offset = 1,
72 sender_sp_offset = 2,
73
74 // Interpreter frames
75 interpreter_frame_oop_temp_offset = 3, // for native calls only
76
77 interpreter_frame_sender_sp_offset = -1,
78 // outgoing sp before a call to an invoked method
79 interpreter_frame_last_sp_offset = interpreter_frame_sender_sp_offset - 1,
80 interpreter_frame_method_offset = interpreter_frame_last_sp_offset - 1,
81 interpreter_frame_mdp_offset = interpreter_frame_method_offset - 1,
82 interpreter_frame_cache_offset = interpreter_frame_mdp_offset - 1,
83 interpreter_frame_locals_offset = interpreter_frame_cache_offset - 1,
84 interpreter_frame_bcp_offset = interpreter_frame_locals_offset - 1,
85 interpreter_frame_initial_sp_offset = interpreter_frame_bcp_offset - 1,
86
87 interpreter_frame_monitor_block_top_offset = interpreter_frame_initial_sp_offset,
88 interpreter_frame_monitor_block_bottom_offset = interpreter_frame_initial_sp_offset,
89
90 // Entry frames
91 // n.b. these values are determined by the layout defined in
92 // stubGenerator for the Java call stub
93 entry_frame_after_call_words = 27,
94 entry_frame_call_wrapper_offset = -8,
95
96 // we don't need a save area
97 arg_reg_save_area_bytes = 0
98
99 };
100
101 intptr_t ptr_at(int offset) const {
102 return *ptr_at_addr(offset);
103 }
104
105 void ptr_at_put(int offset, intptr_t value) {
106 *ptr_at_addr(offset) = value;
107 }
108
109 private:
134 frame(intptr_t* sp, intptr_t* fp, address pc);
135
136 frame(intptr_t* sp, intptr_t* unextended_sp, intptr_t* fp, address pc);
137
138 frame(intptr_t* sp, intptr_t* fp);
139
140 void init(intptr_t* sp, intptr_t* fp, address pc);
141
142 // accessors for the instance variables
143 // Note: not necessarily the real 'frame pointer' (see real_fp)
144 intptr_t* fp() const { return _fp; }
145
146 inline address* sender_pc_addr() const;
147
148 // expression stack tos if we are nested in a java call
149 intptr_t* interpreter_frame_last_sp() const;
150
151 // helper to update a map with callee-saved RBP
152 static void update_map_with_saved_link(RegisterMap* map, intptr_t** link_addr);
153
154 // deoptimization support
155 void interpreter_frame_set_last_sp(intptr_t* sp);
156
157 #endif // CPU_AARCH64_VM_FRAME_AARCH64_HPP
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