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annotate src/cpu/x86/vm/frame_x86.inline.hpp @ 7494:63eb224c2c36
Merge.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Thu, 17 Jan 2013 00:06:39 +0100 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef CPU_X86_VM_FRAME_X86_INLINE_HPP |
26 #define CPU_X86_VM_FRAME_X86_INLINE_HPP | |
27 | |
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28 #include "code/codeCache.hpp" |
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29 |
0 | 30 // Inline functions for Intel frames: |
31 | |
32 // Constructors: | |
33 | |
34 inline frame::frame() { | |
35 _pc = NULL; | |
36 _sp = NULL; | |
37 _unextended_sp = NULL; | |
38 _fp = NULL; | |
39 _cb = NULL; | |
40 _deopt_state = unknown; | |
41 } | |
42 | |
1204 | 43 inline frame::frame(intptr_t* sp, intptr_t* fp, address pc) { |
0 | 44 _sp = sp; |
45 _unextended_sp = sp; | |
46 _fp = fp; | |
47 _pc = pc; | |
48 assert(pc != NULL, "no pc?"); | |
49 _cb = CodeCache::find_blob(pc); | |
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50 adjust_unextended_sp(); |
1204 | 51 |
52 address original_pc = nmethod::get_deopt_original_pc(this); | |
53 if (original_pc != NULL) { | |
54 _pc = original_pc; | |
0 | 55 _deopt_state = is_deoptimized; |
56 } else { | |
57 _deopt_state = not_deoptimized; | |
58 } | |
59 } | |
60 | |
1204 | 61 inline frame::frame(intptr_t* sp, intptr_t* unextended_sp, intptr_t* fp, address pc) { |
0 | 62 _sp = sp; |
63 _unextended_sp = unextended_sp; | |
64 _fp = fp; | |
65 _pc = pc; | |
66 assert(pc != NULL, "no pc?"); | |
67 _cb = CodeCache::find_blob(pc); | |
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68 adjust_unextended_sp(); |
1204 | 69 |
70 address original_pc = nmethod::get_deopt_original_pc(this); | |
71 if (original_pc != NULL) { | |
72 _pc = original_pc; | |
1748 | 73 assert(((nmethod*)_cb)->insts_contains(_pc), "original PC must be in nmethod"); |
0 | 74 _deopt_state = is_deoptimized; |
75 } else { | |
76 _deopt_state = not_deoptimized; | |
77 } | |
78 } | |
79 | |
80 inline frame::frame(intptr_t* sp, intptr_t* fp) { | |
81 _sp = sp; | |
82 _unextended_sp = sp; | |
83 _fp = fp; | |
84 _pc = (address)(sp[-1]); | |
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85 |
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86 // Here's a sticky one. This constructor can be called via AsyncGetCallTrace |
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87 // when last_Java_sp is non-null but the pc fetched is junk. If we are truly |
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88 // unlucky the junk value could be to a zombied method and we'll die on the |
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89 // find_blob call. This is also why we can have no asserts on the validity |
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90 // of the pc we find here. AsyncGetCallTrace -> pd_get_top_frame_for_signal_handler |
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91 // -> pd_last_frame should use a specialized version of pd_last_frame which could |
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92 // call a specilaized frame constructor instead of this one. |
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93 // Then we could use the assert below. However this assert is of somewhat dubious |
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94 // value. |
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95 // assert(_pc != NULL, "no pc?"); |
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96 |
0 | 97 _cb = CodeCache::find_blob(_pc); |
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98 adjust_unextended_sp(); |
0 | 99 |
1204 | 100 address original_pc = nmethod::get_deopt_original_pc(this); |
101 if (original_pc != NULL) { | |
102 _pc = original_pc; | |
0 | 103 _deopt_state = is_deoptimized; |
104 } else { | |
105 _deopt_state = not_deoptimized; | |
106 } | |
107 } | |
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 | |
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136 inline intptr_t* frame::link() const { return (intptr_t*) *(intptr_t **)addr_at(link_offset); } |
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137 inline intptr_t** frame::link_addr() const { return (intptr_t **)addr_at(link_offset); } |
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138 inline void frame::set_link(intptr_t* addr) { *(intptr_t **)addr_at(link_offset) = addr; } |
0 | 139 |
140 | |
141 inline intptr_t* frame::unextended_sp() const { return _unextended_sp; } | |
142 | |
143 // Return address: | |
144 | |
145 inline address* frame::sender_pc_addr() const { return (address*) addr_at( return_addr_offset); } | |
146 inline address frame::sender_pc() const { return *sender_pc_addr(); } | |
147 | |
148 // return address of param, zero origin index. | |
149 inline address* frame::native_param_addr(int idx) const { return (address*) addr_at( native_frame_initial_param_offset+idx); } | |
150 | |
151 #ifdef CC_INTERP | |
152 | |
153 inline interpreterState frame::get_interpreterState() const { | |
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154 return ((interpreterState)addr_at( -((int)sizeof(BytecodeInterpreter))/wordSize )); |
0 | 155 } |
156 | |
157 inline intptr_t* frame::sender_sp() const { | |
158 // Hmm this seems awfully expensive QQQ, is this really called with interpreted frames? | |
159 if (is_interpreted_frame()) { | |
160 assert(false, "should never happen"); | |
161 return get_interpreterState()->sender_sp(); | |
162 } else { | |
163 return addr_at(sender_sp_offset); | |
164 } | |
165 } | |
166 | |
167 inline intptr_t** frame::interpreter_frame_locals_addr() const { | |
168 assert(is_interpreted_frame(), "must be interpreted"); | |
169 return &(get_interpreterState()->_locals); | |
170 } | |
171 | |
172 inline intptr_t* frame::interpreter_frame_bcx_addr() const { | |
173 assert(is_interpreted_frame(), "must be interpreted"); | |
304 | 174 return (intptr_t*) &(get_interpreterState()->_bcp); |
0 | 175 } |
176 | |
177 | |
178 // Constant pool cache | |
179 | |
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180 inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const { |
0 | 181 assert(is_interpreted_frame(), "must be interpreted"); |
182 return &(get_interpreterState()->_constants); | |
183 } | |
184 | |
185 // Method | |
186 | |
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187 inline Method** frame::interpreter_frame_method_addr() const { |
0 | 188 assert(is_interpreted_frame(), "must be interpreted"); |
189 return &(get_interpreterState()->_method); | |
190 } | |
191 | |
192 inline intptr_t* frame::interpreter_frame_mdx_addr() const { | |
193 assert(is_interpreted_frame(), "must be interpreted"); | |
304 | 194 return (intptr_t*) &(get_interpreterState()->_mdx); |
0 | 195 } |
196 | |
197 // top of expression stack | |
198 inline intptr_t* frame::interpreter_frame_tos_address() const { | |
199 assert(is_interpreted_frame(), "wrong frame type"); | |
200 return get_interpreterState()->_stack + 1; | |
201 } | |
202 | |
203 #else /* asm interpreter */ | |
204 inline intptr_t* frame::sender_sp() const { return addr_at( sender_sp_offset); } | |
205 | |
206 inline intptr_t** frame::interpreter_frame_locals_addr() const { | |
207 return (intptr_t**)addr_at(interpreter_frame_locals_offset); | |
208 } | |
209 | |
210 inline intptr_t* frame::interpreter_frame_last_sp() const { | |
211 return *(intptr_t**)addr_at(interpreter_frame_last_sp_offset); | |
212 } | |
213 | |
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214 inline intptr_t** frame::interpreter_frame_last_sp_addr() const { |
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215 return (intptr_t**)addr_at(interpreter_frame_last_sp_offset); |
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216 } |
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217 |
0 | 218 inline intptr_t* frame::interpreter_frame_bcx_addr() const { |
219 return (intptr_t*)addr_at(interpreter_frame_bcx_offset); | |
220 } | |
221 | |
222 | |
223 inline intptr_t* frame::interpreter_frame_mdx_addr() const { | |
224 return (intptr_t*)addr_at(interpreter_frame_mdx_offset); | |
225 } | |
226 | |
227 | |
228 | |
229 // Constant pool cache | |
230 | |
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231 inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const { |
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232 return (ConstantPoolCache**)addr_at(interpreter_frame_cache_offset); |
0 | 233 } |
234 | |
235 // Method | |
236 | |
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237 inline Method** frame::interpreter_frame_method_addr() const { |
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238 return (Method**)addr_at(interpreter_frame_method_offset); |
0 | 239 } |
240 | |
241 // top of expression stack | |
242 inline intptr_t* frame::interpreter_frame_tos_address() const { | |
243 intptr_t* last_sp = interpreter_frame_last_sp(); | |
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244 if (last_sp == NULL) { |
0 | 245 return sp(); |
246 } else { | |
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247 // sp() may have been extended or shrunk by an adapter. At least |
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248 // check that we don't fall behind the legal region. |
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249 // For top deoptimized frame last_sp == interpreter_frame_monitor_end. |
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250 assert(last_sp <= (intptr_t*) interpreter_frame_monitor_end(), "bad tos"); |
0 | 251 return last_sp; |
252 } | |
253 } | |
254 | |
255 #endif /* CC_INTERP */ | |
256 | |
257 inline int frame::pd_oop_map_offset_adjustment() const { | |
258 return 0; | |
259 } | |
260 | |
261 inline int frame::interpreter_frame_monitor_size() { | |
262 return BasicObjectLock::size(); | |
263 } | |
264 | |
265 | |
266 // expression stack | |
267 // (the max_stack arguments are used by the GC; see class FrameClosure) | |
268 | |
269 inline intptr_t* frame::interpreter_frame_expression_stack() const { | |
270 intptr_t* monitor_end = (intptr_t*) interpreter_frame_monitor_end(); | |
271 return monitor_end-1; | |
272 } | |
273 | |
274 | |
275 inline jint frame::interpreter_frame_expression_stack_direction() { return -1; } | |
276 | |
277 | |
278 // Entry frames | |
279 | |
280 inline JavaCallWrapper* frame::entry_frame_call_wrapper() const { | |
281 return (JavaCallWrapper*)at(entry_frame_call_wrapper_offset); | |
282 } | |
283 | |
284 | |
285 // Compiled frames | |
286 | |
287 inline int frame::local_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) { | |
288 return (nof_args - local_index + (local_index < nof_args ? 1: -1)); | |
289 } | |
290 | |
291 inline int frame::monitor_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors) { | |
292 return local_offset_for_compiler(local_index, nof_args, max_nof_locals, max_nof_monitors); | |
293 } | |
294 | |
295 inline int frame::min_local_offset_for_compiler(int nof_args, int max_nof_locals, int max_nof_monitors) { | |
296 return (nof_args - (max_nof_locals + max_nof_monitors*2) - 1); | |
297 } | |
298 | |
299 inline bool frame::volatile_across_calls(Register reg) { | |
300 return true; | |
301 } | |
302 | |
303 | |
304 | |
305 inline oop frame::saved_oop_result(RegisterMap* map) const { | |
306 return *((oop*) map->location(rax->as_VMReg())); | |
307 } | |
308 | |
309 inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) { | |
310 *((oop*) map->location(rax->as_VMReg())) = obj; | |
311 } | |
1972 | 312 |
313 #endif // CPU_X86_VM_FRAME_X86_INLINE_HPP |