Mercurial > hg > truffle
annotate src/cpu/x86/vm/frame_x86.inline.hpp @ 614:3db67f76d308
Merge
author | acorn |
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date | Thu, 05 Mar 2009 22:07:29 -0500 |
parents | 52a431267315 |
children | 0fbdb4381b99 |
rev | line source |
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0 | 1 /* |
196 | 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 // Inline functions for Intel frames: | |
26 | |
27 // Constructors: | |
28 | |
29 inline frame::frame() { | |
30 _pc = NULL; | |
31 _sp = NULL; | |
32 _unextended_sp = NULL; | |
33 _fp = NULL; | |
34 _cb = NULL; | |
35 _deopt_state = unknown; | |
36 } | |
37 | |
38 inline frame:: frame(intptr_t* sp, intptr_t* fp, address pc) { | |
39 _sp = sp; | |
40 _unextended_sp = sp; | |
41 _fp = fp; | |
42 _pc = pc; | |
43 assert(pc != NULL, "no pc?"); | |
44 _cb = CodeCache::find_blob(pc); | |
45 _deopt_state = not_deoptimized; | |
46 if (_cb != NULL && _cb->is_nmethod() && ((nmethod*)_cb)->is_deopt_pc(_pc)) { | |
47 _pc = (((nmethod*)_cb)->get_original_pc(this)); | |
48 _deopt_state = is_deoptimized; | |
49 } else { | |
50 _deopt_state = not_deoptimized; | |
51 } | |
52 } | |
53 | |
54 inline frame:: frame(intptr_t* sp, intptr_t* unextended_sp, intptr_t* fp, address pc) { | |
55 _sp = sp; | |
56 _unextended_sp = unextended_sp; | |
57 _fp = fp; | |
58 _pc = pc; | |
59 assert(pc != NULL, "no pc?"); | |
60 _cb = CodeCache::find_blob(pc); | |
61 _deopt_state = not_deoptimized; | |
62 if (_cb != NULL && _cb->is_nmethod() && ((nmethod*)_cb)->is_deopt_pc(_pc)) { | |
63 _pc = (((nmethod*)_cb)->get_original_pc(this)); | |
64 _deopt_state = is_deoptimized; | |
65 } else { | |
66 _deopt_state = not_deoptimized; | |
67 } | |
68 } | |
69 | |
70 inline frame::frame(intptr_t* sp, intptr_t* fp) { | |
71 _sp = sp; | |
72 _unextended_sp = sp; | |
73 _fp = fp; | |
74 _pc = (address)(sp[-1]); | |
107
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75 |
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76 // Here's a sticky one. This constructor can be called via AsyncGetCallTrace |
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77 // when last_Java_sp is non-null but the pc fetched is junk. If we are truly |
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78 // unlucky the junk value could be to a zombied method and we'll die on the |
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79 // find_blob call. This is also why we can have no asserts on the validity |
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80 // of the pc we find here. AsyncGetCallTrace -> pd_get_top_frame_for_signal_handler |
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81 // -> pd_last_frame should use a specialized version of pd_last_frame which could |
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82 // call a specilaized frame constructor instead of this one. |
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83 // Then we could use the assert below. However this assert is of somewhat dubious |
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84 // value. |
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85 // assert(_pc != NULL, "no pc?"); |
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86 |
0 | 87 _cb = CodeCache::find_blob(_pc); |
88 | |
89 _deopt_state = not_deoptimized; | |
90 if (_cb != NULL && _cb->is_nmethod() && ((nmethod*)_cb)->is_deopt_pc(_pc)) { | |
91 _pc = (((nmethod*)_cb)->get_original_pc(this)); | |
92 _deopt_state = is_deoptimized; | |
93 } else { | |
94 _deopt_state = not_deoptimized; | |
95 } | |
96 } | |
97 | |
98 // Accessors | |
99 | |
100 inline bool frame::equal(frame other) const { | |
101 bool ret = sp() == other.sp() | |
102 && unextended_sp() == other.unextended_sp() | |
103 && fp() == other.fp() | |
104 && pc() == other.pc(); | |
105 assert(!ret || ret && cb() == other.cb() && _deopt_state == other._deopt_state, "inconsistent construction"); | |
106 return ret; | |
107 } | |
108 | |
109 // Return unique id for this frame. The id must have a value where we can distinguish | |
110 // identity and younger/older relationship. NULL represents an invalid (incomparable) | |
111 // frame. | |
112 inline intptr_t* frame::id(void) const { return unextended_sp(); } | |
113 | |
114 // Relationals on frames based | |
115 // Return true if the frame is younger (more recent activation) than the frame represented by id | |
116 inline bool frame::is_younger(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id"); | |
117 return this->id() < id ; } | |
118 | |
119 // Return true if the frame is older (less recent activation) than the frame represented by id | |
120 inline bool frame::is_older(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id"); | |
121 return this->id() > id ; } | |
122 | |
123 | |
124 | |
125 inline intptr_t* frame::link() const { return (intptr_t*) *(intptr_t **)addr_at(link_offset); } | |
126 inline void frame::set_link(intptr_t* addr) { *(intptr_t **)addr_at(link_offset) = addr; } | |
127 | |
128 | |
129 inline intptr_t* frame::unextended_sp() const { return _unextended_sp; } | |
130 | |
131 // Return address: | |
132 | |
133 inline address* frame::sender_pc_addr() const { return (address*) addr_at( return_addr_offset); } | |
134 inline address frame::sender_pc() const { return *sender_pc_addr(); } | |
135 | |
136 // return address of param, zero origin index. | |
137 inline address* frame::native_param_addr(int idx) const { return (address*) addr_at( native_frame_initial_param_offset+idx); } | |
138 | |
139 #ifdef CC_INTERP | |
140 | |
141 inline interpreterState frame::get_interpreterState() const { | |
520
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142 return ((interpreterState)addr_at( -((int)sizeof(BytecodeInterpreter))/wordSize )); |
0 | 143 } |
144 | |
145 inline intptr_t* frame::sender_sp() const { | |
146 // Hmm this seems awfully expensive QQQ, is this really called with interpreted frames? | |
147 if (is_interpreted_frame()) { | |
148 assert(false, "should never happen"); | |
149 return get_interpreterState()->sender_sp(); | |
150 } else { | |
151 return addr_at(sender_sp_offset); | |
152 } | |
153 } | |
154 | |
155 inline intptr_t** frame::interpreter_frame_locals_addr() const { | |
156 assert(is_interpreted_frame(), "must be interpreted"); | |
157 return &(get_interpreterState()->_locals); | |
158 } | |
159 | |
160 inline intptr_t* frame::interpreter_frame_bcx_addr() const { | |
161 assert(is_interpreted_frame(), "must be interpreted"); | |
304 | 162 return (intptr_t*) &(get_interpreterState()->_bcp); |
0 | 163 } |
164 | |
165 | |
166 // Constant pool cache | |
167 | |
168 inline constantPoolCacheOop* frame::interpreter_frame_cache_addr() const { | |
169 assert(is_interpreted_frame(), "must be interpreted"); | |
170 return &(get_interpreterState()->_constants); | |
171 } | |
172 | |
173 // Method | |
174 | |
175 inline methodOop* frame::interpreter_frame_method_addr() const { | |
176 assert(is_interpreted_frame(), "must be interpreted"); | |
177 return &(get_interpreterState()->_method); | |
178 } | |
179 | |
180 inline intptr_t* frame::interpreter_frame_mdx_addr() const { | |
181 assert(is_interpreted_frame(), "must be interpreted"); | |
304 | 182 return (intptr_t*) &(get_interpreterState()->_mdx); |
0 | 183 } |
184 | |
185 // top of expression stack | |
186 inline intptr_t* frame::interpreter_frame_tos_address() const { | |
187 assert(is_interpreted_frame(), "wrong frame type"); | |
188 return get_interpreterState()->_stack + 1; | |
189 } | |
190 | |
191 #else /* asm interpreter */ | |
192 inline intptr_t* frame::sender_sp() const { return addr_at( sender_sp_offset); } | |
193 | |
194 inline intptr_t** frame::interpreter_frame_locals_addr() const { | |
195 return (intptr_t**)addr_at(interpreter_frame_locals_offset); | |
196 } | |
197 | |
198 inline intptr_t* frame::interpreter_frame_last_sp() const { | |
199 return *(intptr_t**)addr_at(interpreter_frame_last_sp_offset); | |
200 } | |
201 | |
202 inline intptr_t* frame::interpreter_frame_bcx_addr() const { | |
203 return (intptr_t*)addr_at(interpreter_frame_bcx_offset); | |
204 } | |
205 | |
206 | |
207 inline intptr_t* frame::interpreter_frame_mdx_addr() const { | |
208 return (intptr_t*)addr_at(interpreter_frame_mdx_offset); | |
209 } | |
210 | |
211 | |
212 | |
213 // Constant pool cache | |
214 | |
215 inline constantPoolCacheOop* frame::interpreter_frame_cache_addr() const { | |
216 return (constantPoolCacheOop*)addr_at(interpreter_frame_cache_offset); | |
217 } | |
218 | |
219 // Method | |
220 | |
221 inline methodOop* frame::interpreter_frame_method_addr() const { | |
222 return (methodOop*)addr_at(interpreter_frame_method_offset); | |
223 } | |
224 | |
225 // top of expression stack | |
226 inline intptr_t* frame::interpreter_frame_tos_address() const { | |
227 intptr_t* last_sp = interpreter_frame_last_sp(); | |
228 if (last_sp == NULL ) { | |
229 return sp(); | |
230 } else { | |
231 // sp() may have been extended by an adapter | |
232 assert(last_sp < fp() && last_sp >= sp(), "bad tos"); | |
233 return last_sp; | |
234 } | |
235 } | |
236 | |
237 #endif /* CC_INTERP */ | |
238 | |
239 inline int frame::pd_oop_map_offset_adjustment() const { | |
240 return 0; | |
241 } | |
242 | |
243 inline int frame::interpreter_frame_monitor_size() { | |
244 return BasicObjectLock::size(); | |
245 } | |
246 | |
247 | |
248 // expression stack | |
249 // (the max_stack arguments are used by the GC; see class FrameClosure) | |
250 | |
251 inline intptr_t* frame::interpreter_frame_expression_stack() const { | |
252 intptr_t* monitor_end = (intptr_t*) interpreter_frame_monitor_end(); | |
253 return monitor_end-1; | |
254 } | |
255 | |
256 | |
257 inline jint frame::interpreter_frame_expression_stack_direction() { return -1; } | |
258 | |
259 | |
260 // Entry frames | |
261 | |
262 inline JavaCallWrapper* frame::entry_frame_call_wrapper() const { | |
263 return (JavaCallWrapper*)at(entry_frame_call_wrapper_offset); | |
264 } | |
265 | |
266 | |
267 // Compiled frames | |
268 | |
269 inline int frame::local_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) { | |
270 return (nof_args - local_index + (local_index < nof_args ? 1: -1)); | |
271 } | |
272 | |
273 inline int frame::monitor_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) { | |
274 return local_offset_for_compiler(local_index, nof_args, max_nof_locals, max_nof_monitors); | |
275 } | |
276 | |
277 inline int frame::min_local_offset_for_compiler(int nof_args, int max_nof_locals, int max_nof_monitors) { | |
278 return (nof_args - (max_nof_locals + max_nof_monitors*2) - 1); | |
279 } | |
280 | |
281 inline bool frame::volatile_across_calls(Register reg) { | |
282 return true; | |
283 } | |
284 | |
285 | |
286 | |
287 inline oop frame::saved_oop_result(RegisterMap* map) const { | |
288 return *((oop*) map->location(rax->as_VMReg())); | |
289 } | |
290 | |
291 inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) { | |
292 *((oop*) map->location(rax->as_VMReg())) = obj; | |
293 } |