1 /*
2 * Copyright (c) 2008, 2018, Oracle and/or its affiliates. All rights reserved.
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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef CPU_ARM_VM_FRAME_ARM_INLINE_HPP
26 #define CPU_ARM_VM_FRAME_ARM_INLINE_HPP
27
28 #include "code/codeCache.hpp"
29 #include "code/vmreg.inline.hpp"
30
31 // Inline functions for ARM frames:
32
33 // Constructors:
34
35 inline frame::frame() {
36 _pc = NULL;
37 _sp = NULL;
38 _unextended_sp = NULL;
39 _fp = NULL;
40 _cb = NULL;
41 _deopt_state = unknown;
42 }
43
44 inline void frame::init(intptr_t* sp, intptr_t* fp, address pc) {
45 _sp = sp;
46 _unextended_sp = sp;
47 _fp = fp;
48 _pc = pc;
49 assert(pc != NULL, "no pc?");
50 _cb = CodeCache::find_blob(pc);
51 adjust_unextended_sp();
52
53 address original_pc = CompiledMethod::get_deopt_original_pc(this);
54 if (original_pc != NULL) {
55 _pc = original_pc;
56 _deopt_state = is_deoptimized;
57 } else {
58 _deopt_state = not_deoptimized;
59 }
60 }
61
62 inline frame::frame(intptr_t* sp, intptr_t* fp, address pc) {
63 init(sp, fp, pc);
64 }
65
66 inline frame::frame(intptr_t* sp, intptr_t* unextended_sp, intptr_t* fp, address pc) {
67 _sp = sp;
68 _unextended_sp = unextended_sp;
69 _fp = fp;
70 _pc = pc;
71 assert(pc != NULL, "no pc?");
72 _cb = CodeCache::find_blob(pc);
73 adjust_unextended_sp();
74
75 address original_pc = CompiledMethod::get_deopt_original_pc(this);
76 if (original_pc != NULL) {
77 _pc = original_pc;
78 assert(_cb->as_compiled_method()->insts_contains_inclusive(_pc),
79 "original PC must be in the main code section of the the compiled method (or must be immediately following it)");
80 _deopt_state = is_deoptimized;
81 } else {
82 _deopt_state = not_deoptimized;
83 }
84 }
85
86 #ifndef AARCH64
87
88 inline frame::frame(intptr_t* sp, intptr_t* fp) {
89 _sp = sp;
90 _unextended_sp = sp;
91 _fp = fp;
92 assert(sp != NULL,"null SP ?");
93 _pc = (address)(sp[-1]);
94 // assert(_pc != NULL, "no pc?"); // see comments in x86
95 _cb = CodeCache::find_blob(_pc);
96 adjust_unextended_sp();
97
98 address original_pc = CompiledMethod::get_deopt_original_pc(this);
99 if (original_pc != NULL) {
100 _pc = original_pc;
101 _deopt_state = is_deoptimized;
102 } else {
103 _deopt_state = not_deoptimized;
104 }
105 }
106
107 #endif // !AARCH64
108
109 // Accessors
110
111 inline bool frame::equal(frame other) const {
112 bool ret = sp() == other.sp()
113 && unextended_sp() == other.unextended_sp()
114 && fp() == other.fp()
115 && pc() == other.pc();
116 assert(!ret || ret && cb() == other.cb() && _deopt_state == other._deopt_state, "inconsistent construction");
117 return ret;
118 }
119
120 // Return unique id for this frame. The id must have a value where we can distinguish
121 // identity and younger/older relationship. NULL represents an invalid (incomparable)
122 // frame.
123 inline intptr_t* frame::id(void) const { return unextended_sp(); }
124
125 // Relationals on frames based
126 // Return true if the frame is younger (more recent activation) than the frame represented by id
127 inline bool frame::is_younger(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id");
128 return this->id() < id ; }
129
130 // Return true if the frame is older (less recent activation) than the frame represented by id
131 inline bool frame::is_older(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id");
132 return this->id() > id ; }
133
134
135
136 inline intptr_t* frame::link() const { return (intptr_t*) *(intptr_t **)addr_at(link_offset); }
137
138 inline intptr_t* frame::unextended_sp() const { return _unextended_sp; }
139
140 // Return address:
141
142 inline address* frame::sender_pc_addr() const { return (address*) addr_at(return_addr_offset); }
143 inline address frame::sender_pc() const { return *sender_pc_addr(); }
144
145 inline intptr_t* frame::sender_sp() const { return addr_at(sender_sp_offset); }
146
147 inline intptr_t** frame::interpreter_frame_locals_addr() const {
148 return (intptr_t**)addr_at(interpreter_frame_locals_offset);
149 }
150
151 #ifndef AARCH64
152 inline intptr_t* frame::interpreter_frame_last_sp() const {
153 return *(intptr_t**)addr_at(interpreter_frame_last_sp_offset);
154 }
155 #endif // !AARCH64
156
157 inline intptr_t* frame::interpreter_frame_bcp_addr() const {
158 return (intptr_t*)addr_at(interpreter_frame_bcp_offset);
159 }
160
161 inline intptr_t* frame::interpreter_frame_mdp_addr() const {
162 return (intptr_t*)addr_at(interpreter_frame_mdp_offset);
163 }
164
165
166 // Constant pool cache
167
168 inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const {
169 return (ConstantPoolCache**)addr_at(interpreter_frame_cache_offset);
170 }
171
172 // Method
173
174 inline Method** frame::interpreter_frame_method_addr() const {
175 return (Method**)addr_at(interpreter_frame_method_offset);
176 }
177
178 inline oop* frame::interpreter_frame_mirror_addr() const {
179 return (oop*)addr_at(interpreter_frame_mirror_offset);
180 }
181
182 // top of expression stack
183 inline intptr_t* frame::interpreter_frame_tos_address() const {
184 #ifdef AARCH64
185 intptr_t* stack_top = (intptr_t*)*addr_at(interpreter_frame_stack_top_offset);
186 assert(stack_top != NULL, "should be stored before call");
187 assert(stack_top <= (intptr_t*) interpreter_frame_monitor_end(), "bad tos");
188 return stack_top;
189 #else
190 intptr_t* last_sp = interpreter_frame_last_sp();
191 if (last_sp == NULL ) {
192 return sp();
193 } else {
194 // sp() may have been extended or shrunk by an adapter. At least
195 // check that we don't fall behind the legal region.
196 // For top deoptimized frame last_sp == interpreter_frame_monitor_end.
197 assert(last_sp <= (intptr_t*) interpreter_frame_monitor_end(), "bad tos");
198 return last_sp;
199 }
200 #endif // AARCH64
201 }
202
203 inline oop* frame::interpreter_frame_temp_oop_addr() const {
204 return (oop *)(fp() + interpreter_frame_oop_temp_offset);
205 }
206
207 inline int frame::interpreter_frame_monitor_size() {
208 return BasicObjectLock::size();
209 }
210
211
212 // expression stack
213 // (the max_stack arguments are used by the GC; see class FrameClosure)
214
215 inline intptr_t* frame::interpreter_frame_expression_stack() const {
216 intptr_t* monitor_end = (intptr_t*) interpreter_frame_monitor_end();
217 return monitor_end-1;
218 }
219
220
221 inline jint frame::interpreter_frame_expression_stack_direction() { return -1; }
222
223
224 // Entry frames
225
226 inline JavaCallWrapper** frame::entry_frame_call_wrapper_addr() const {
227 return (JavaCallWrapper**)addr_at(entry_frame_call_wrapper_offset);
228 }
229
230
231 // Compiled frames
232
233 inline oop frame::saved_oop_result(RegisterMap* map) const {
234 oop* result_adr = (oop*) map->location(R0->as_VMReg());
235 guarantee(result_adr != NULL, "bad register save location");
236 return (*result_adr);
237 }
238
239 inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) {
240 oop* result_adr = (oop*) map->location(R0->as_VMReg());
241 guarantee(result_adr != NULL, "bad register save location");
242 *result_adr = obj;
243 }
244
245 #endif // CPU_ARM_VM_FRAME_ARM_INLINE_HPP