1 /*
2 * Copyright (c) 2003, 2019, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2014, 2015, Red Hat Inc. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
101 ldr(reg, Address(reg, in_bytes(ConstMethod::constants_offset())));
102 }
103
104 void get_constant_pool_cache(Register reg) {
105 get_constant_pool(reg);
106 ldr(reg, Address(reg, ConstantPool::cache_offset_in_bytes()));
107 }
108
109 void get_cpool_and_tags(Register cpool, Register tags) {
110 get_constant_pool(cpool);
111 ldr(tags, Address(cpool, ConstantPool::tags_offset_in_bytes()));
112 }
113
114 void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset);
115 void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, size_t index_size = sizeof(u2));
116 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));
117 void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2));
118 void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2));
119 void get_method_counters(Register method, Register mcs, Label& skip);
120
121 // load cpool->resolved_references(index);
122 void load_resolved_reference_at_index(Register result, Register index, Register tmp = r5);
123
124 // load cpool->resolved_klass_at(index);
125 void load_resolved_klass_at_offset(Register cpool, Register index, Register klass, Register temp);
126
127 void load_resolved_method_at_index(int byte_no, Register method, Register cache);
128
129 void pop_ptr(Register r = r0);
130 void pop_i(Register r = r0);
131 void pop_l(Register r = r0);
132 void pop_f(FloatRegister r = v0);
133 void pop_d(FloatRegister r = v0);
134 void push_ptr(Register r = r0);
135 void push_i(Register r = r0);
136 void push_l(Register r = r0);
137 void push_f(FloatRegister r = v0);
138 void push_d(FloatRegister r = v0);
139
140 void pop(Register r ) { ((MacroAssembler*)this)->pop(r); }
146
147 void pop(RegSet regs, Register stack) { ((MacroAssembler*)this)->pop(regs, stack); }
148 void push(RegSet regs, Register stack) { ((MacroAssembler*)this)->push(regs, stack); }
149
150 void empty_expression_stack() {
151 ldr(esp, Address(rfp, frame::interpreter_frame_monitor_block_top_offset * wordSize));
152 // NULL last_sp until next java call
153 str(zr, Address(rfp, frame::interpreter_frame_last_sp_offset * wordSize));
154 }
155
156 // Helpers for swap and dup
157 void load_ptr(int n, Register val);
158 void store_ptr(int n, Register val);
159
160 // Load float value from 'address'. The value is loaded onto the FPU register v0.
161 void load_float(Address src);
162 void load_double(Address src);
163
164 // Generate a subtype check: branch to ok_is_subtype if sub_klass is
165 // a subtype of super_klass.
166 void gen_subtype_check( Register sub_klass, Label &ok_is_subtype );
167
168 // Dispatching
169 void dispatch_prolog(TosState state, int step = 0);
170 void dispatch_epilog(TosState state, int step = 0);
171 // dispatch via rscratch1
172 void dispatch_only(TosState state, bool generate_poll = false);
173 // dispatch normal table via rscratch1 (assume rscratch1 is loaded already)
174 void dispatch_only_normal(TosState state);
175 void dispatch_only_noverify(TosState state);
176 // load rscratch1 from [rbcp + step] and dispatch via rscratch1
177 void dispatch_next(TosState state, int step = 0, bool generate_poll = false);
178 // load rscratch1 from [esi] and dispatch via rscratch1 and table
179 void dispatch_via (TosState state, address* table);
180
181 // jump to an invoked target
182 void prepare_to_jump_from_interpreted();
183 void jump_from_interpreted(Register method, Register temp);
184
185
186 // Returning from interpreted functions
239
240 void record_klass_in_profile(Register receiver, Register mdp,
241 Register reg2, bool is_virtual_call);
242 void record_klass_in_profile_helper(Register receiver, Register mdp,
243 Register reg2, int start_row,
244 Label& done, bool is_virtual_call);
245 void record_item_in_profile_helper(Register item, Register mdp,
246 Register reg2, int start_row, Label& done, int total_rows,
247 OffsetFunction item_offset_fn, OffsetFunction item_count_offset_fn,
248 int non_profiled_offset);
249
250 void update_mdp_by_offset(Register mdp_in, int offset_of_offset);
251 void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);
252 void update_mdp_by_constant(Register mdp_in, int constant);
253 void update_mdp_for_ret(Register return_bci);
254
255 // narrow int return value
256 void narrow(Register result);
257
258 void profile_taken_branch(Register mdp, Register bumped_count);
259 void profile_not_taken_branch(Register mdp);
260 void profile_call(Register mdp);
261 void profile_final_call(Register mdp);
262 void profile_virtual_call(Register receiver, Register mdp,
263 Register scratch2,
264 bool receiver_can_be_null = false);
265 void profile_ret(Register return_bci, Register mdp);
266 void profile_null_seen(Register mdp);
267 void profile_typecheck(Register mdp, Register klass, Register scratch);
268 void profile_typecheck_failed(Register mdp);
269 void profile_switch_default(Register mdp);
270 void profile_switch_case(Register index_in_scratch, Register mdp,
271 Register scratch2);
272
273 void profile_obj_type(Register obj, const Address& mdo_addr);
274 void profile_arguments_type(Register mdp, Register callee, Register tmp, bool is_virtual);
275 void profile_return_type(Register mdp, Register ret, Register tmp);
276 void profile_parameters_type(Register mdp, Register tmp1, Register tmp2);
277
278 // Debugging
279 // only if +VerifyOops && state == atos
280 void verify_oop(Register reg, TosState state = atos);
281 // only if +VerifyFPU && (state == ftos || state == dtos)
282 void verify_FPU(int stack_depth, TosState state = ftos);
283
284 typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
285
286 // support for jvmti/dtrace
287 void notify_method_entry();
288 void notify_method_exit(TosState state, NotifyMethodExitMode mode);
289
290 virtual void _call_Unimplemented(address call_site) {
291 save_bcp();
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1 /*
2 * Copyright (c) 2003, 2021, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2014, 2015, Red Hat Inc. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
101 ldr(reg, Address(reg, in_bytes(ConstMethod::constants_offset())));
102 }
103
104 void get_constant_pool_cache(Register reg) {
105 get_constant_pool(reg);
106 ldr(reg, Address(reg, ConstantPool::cache_offset_in_bytes()));
107 }
108
109 void get_cpool_and_tags(Register cpool, Register tags) {
110 get_constant_pool(cpool);
111 ldr(tags, Address(cpool, ConstantPool::tags_offset_in_bytes()));
112 }
113
114 void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset);
115 void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, size_t index_size = sizeof(u2));
116 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));
117 void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2));
118 void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2));
119 void get_method_counters(Register method, Register mcs, Label& skip);
120
121 // Kills t1 and t2, perserves klass, return allocation in new_obj
122 void allocate_instance(Register klass, Register new_obj,
123 Register t1, Register t2,
124 bool clear_fields, Label& alloc_failed);
125
126 // Allocate instance in "obj" and read in the content of the inline field
127 // NOTES:
128 // - input holder object via "obj", which must be r0,
129 // will return new instance via the same reg
130 // - assumes holder_klass and valueKlass field klass have both been resolved
131 void read_inlined_field(Register holder_klass,
132 Register field_index, Register field_offset,
133 Register temp, Register obj = r0);
134
135 // Allocate value buffer in "obj" and read in flattened element at the given index
136 // NOTES:
137 // - Return via "obj" must be r0
138 // - kills all given regs
139 void read_flattened_element(Register array, Register index,
140 Register t1, Register t2,
141 Register obj = r0);
142
143 // load cpool->resolved_references(index);
144 void load_resolved_reference_at_index(Register result, Register index, Register tmp = r5);
145
146 // load cpool->resolved_klass_at(index);
147 void load_resolved_klass_at_offset(Register cpool, Register index, Register klass, Register temp);
148
149 void load_resolved_method_at_index(int byte_no, Register method, Register cache);
150
151 void pop_ptr(Register r = r0);
152 void pop_i(Register r = r0);
153 void pop_l(Register r = r0);
154 void pop_f(FloatRegister r = v0);
155 void pop_d(FloatRegister r = v0);
156 void push_ptr(Register r = r0);
157 void push_i(Register r = r0);
158 void push_l(Register r = r0);
159 void push_f(FloatRegister r = v0);
160 void push_d(FloatRegister r = v0);
161
162 void pop(Register r ) { ((MacroAssembler*)this)->pop(r); }
168
169 void pop(RegSet regs, Register stack) { ((MacroAssembler*)this)->pop(regs, stack); }
170 void push(RegSet regs, Register stack) { ((MacroAssembler*)this)->push(regs, stack); }
171
172 void empty_expression_stack() {
173 ldr(esp, Address(rfp, frame::interpreter_frame_monitor_block_top_offset * wordSize));
174 // NULL last_sp until next java call
175 str(zr, Address(rfp, frame::interpreter_frame_last_sp_offset * wordSize));
176 }
177
178 // Helpers for swap and dup
179 void load_ptr(int n, Register val);
180 void store_ptr(int n, Register val);
181
182 // Load float value from 'address'. The value is loaded onto the FPU register v0.
183 void load_float(Address src);
184 void load_double(Address src);
185
186 // Generate a subtype check: branch to ok_is_subtype if sub_klass is
187 // a subtype of super_klass.
188 void gen_subtype_check( Register sub_klass, Label &ok_is_subtype, bool profile = true);
189
190 // Dispatching
191 void dispatch_prolog(TosState state, int step = 0);
192 void dispatch_epilog(TosState state, int step = 0);
193 // dispatch via rscratch1
194 void dispatch_only(TosState state, bool generate_poll = false);
195 // dispatch normal table via rscratch1 (assume rscratch1 is loaded already)
196 void dispatch_only_normal(TosState state);
197 void dispatch_only_noverify(TosState state);
198 // load rscratch1 from [rbcp + step] and dispatch via rscratch1
199 void dispatch_next(TosState state, int step = 0, bool generate_poll = false);
200 // load rscratch1 from [esi] and dispatch via rscratch1 and table
201 void dispatch_via (TosState state, address* table);
202
203 // jump to an invoked target
204 void prepare_to_jump_from_interpreted();
205 void jump_from_interpreted(Register method, Register temp);
206
207
208 // Returning from interpreted functions
261
262 void record_klass_in_profile(Register receiver, Register mdp,
263 Register reg2, bool is_virtual_call);
264 void record_klass_in_profile_helper(Register receiver, Register mdp,
265 Register reg2, int start_row,
266 Label& done, bool is_virtual_call);
267 void record_item_in_profile_helper(Register item, Register mdp,
268 Register reg2, int start_row, Label& done, int total_rows,
269 OffsetFunction item_offset_fn, OffsetFunction item_count_offset_fn,
270 int non_profiled_offset);
271
272 void update_mdp_by_offset(Register mdp_in, int offset_of_offset);
273 void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);
274 void update_mdp_by_constant(Register mdp_in, int constant);
275 void update_mdp_for_ret(Register return_bci);
276
277 // narrow int return value
278 void narrow(Register result);
279
280 void profile_taken_branch(Register mdp, Register bumped_count);
281 void profile_not_taken_branch(Register mdp, bool acmp = false);
282 void profile_call(Register mdp);
283 void profile_final_call(Register mdp);
284 void profile_virtual_call(Register receiver, Register mdp,
285 Register scratch2,
286 bool receiver_can_be_null = false);
287 void profile_ret(Register return_bci, Register mdp);
288 void profile_null_seen(Register mdp);
289 void profile_typecheck(Register mdp, Register klass, Register scratch);
290 void profile_typecheck_failed(Register mdp);
291 void profile_switch_default(Register mdp);
292 void profile_switch_case(Register index_in_scratch, Register mdp,
293 Register scratch2);
294 void profile_array(Register mdp, Register array, Register tmp);
295 void profile_element(Register mdp, Register element, Register tmp);
296 void profile_acmp(Register mdp, Register left, Register right, Register tmp);
297
298 void profile_obj_type(Register obj, const Address& mdo_addr);
299 void profile_arguments_type(Register mdp, Register callee, Register tmp, bool is_virtual);
300 void profile_return_type(Register mdp, Register ret, Register tmp);
301 void profile_parameters_type(Register mdp, Register tmp1, Register tmp2);
302
303 // Debugging
304 // only if +VerifyOops && state == atos
305 void verify_oop(Register reg, TosState state = atos);
306 // only if +VerifyFPU && (state == ftos || state == dtos)
307 void verify_FPU(int stack_depth, TosState state = ftos);
308
309 typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
310
311 // support for jvmti/dtrace
312 void notify_method_entry();
313 void notify_method_exit(TosState state, NotifyMethodExitMode mode);
314
315 virtual void _call_Unimplemented(address call_site) {
316 save_bcp();
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