Mercurial > hg > truffle
annotate src/share/vm/compiler/compilerOracle.cpp @ 20691:03b7d9efd9fd
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author | dbuck |
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date | Thu, 04 Dec 2014 07:54:25 +0000 |
parents | e09c0676c53f |
children | 7848fc12602b |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1998, 2014, 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 #include "precompiled.hpp" |
26 #include "compiler/compilerOracle.hpp" | |
27 #include "memory/allocation.inline.hpp" | |
28 #include "memory/oopFactory.hpp" | |
29 #include "memory/resourceArea.hpp" | |
30 #include "oops/klass.hpp" | |
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31 #include "oops/method.hpp" |
1972 | 32 #include "oops/oop.inline.hpp" |
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33 #include "oops/symbol.hpp" |
1972 | 34 #include "runtime/handles.inline.hpp" |
35 #include "runtime/jniHandles.hpp" | |
0 | 36 |
6197 | 37 class MethodMatcher : public CHeapObj<mtCompiler> { |
0 | 38 public: |
39 enum Mode { | |
40 Exact, | |
41 Prefix = 1, | |
42 Suffix = 2, | |
43 Substring = Prefix | Suffix, | |
44 Any, | |
45 Unknown = -1 | |
46 }; | |
47 | |
48 protected: | |
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49 Symbol* _class_name; |
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50 Symbol* _method_name; |
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51 Symbol* _signature; |
0 | 52 Mode _class_mode; |
53 Mode _method_mode; | |
54 MethodMatcher* _next; | |
55 | |
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56 static bool match(Symbol* candidate, Symbol* match, Mode match_mode); |
0 | 57 |
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58 Symbol* class_name() const { return _class_name; } |
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59 Symbol* method_name() const { return _method_name; } |
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60 Symbol* signature() const { return _signature; } |
0 | 61 |
62 public: | |
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63 MethodMatcher(Symbol* class_name, Mode class_mode, |
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64 Symbol* method_name, Mode method_mode, |
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65 Symbol* signature, MethodMatcher* next); |
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66 MethodMatcher(Symbol* class_name, Symbol* method_name, MethodMatcher* next); |
0 | 67 |
68 // utility method | |
69 MethodMatcher* find(methodHandle method) { | |
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70 Symbol* class_name = method->method_holder()->name(); |
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71 Symbol* method_name = method->name(); |
0 | 72 for (MethodMatcher* current = this; current != NULL; current = current->_next) { |
73 if (match(class_name, current->class_name(), current->_class_mode) && | |
74 match(method_name, current->method_name(), current->_method_mode) && | |
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75 (current->signature() == NULL || current->signature() == method->signature())) { |
0 | 76 return current; |
77 } | |
78 } | |
79 return NULL; | |
80 } | |
81 | |
82 bool match(methodHandle method) { | |
83 return find(method) != NULL; | |
84 } | |
85 | |
86 MethodMatcher* next() const { return _next; } | |
87 | |
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88 static void print_symbol(Symbol* h, Mode mode) { |
0 | 89 ResourceMark rm; |
90 | |
91 if (mode == Suffix || mode == Substring || mode == Any) { | |
92 tty->print("*"); | |
93 } | |
94 if (mode != Any) { | |
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95 h->print_symbol_on(tty); |
0 | 96 } |
97 if (mode == Prefix || mode == Substring) { | |
98 tty->print("*"); | |
99 } | |
100 } | |
101 | |
102 void print_base() { | |
103 print_symbol(class_name(), _class_mode); | |
104 tty->print("."); | |
105 print_symbol(method_name(), _method_mode); | |
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106 if (signature() != NULL) { |
0 | 107 tty->print(" "); |
108 signature()->print_symbol_on(tty); | |
109 } | |
110 } | |
111 | |
112 virtual void print() { | |
113 print_base(); | |
114 tty->cr(); | |
115 } | |
116 }; | |
117 | |
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118 MethodMatcher::MethodMatcher(Symbol* class_name, Symbol* method_name, MethodMatcher* next) { |
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119 _class_name = class_name; |
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120 _method_name = method_name; |
0 | 121 _next = next; |
122 _class_mode = MethodMatcher::Exact; | |
123 _method_mode = MethodMatcher::Exact; | |
124 _signature = NULL; | |
125 } | |
126 | |
127 | |
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128 MethodMatcher::MethodMatcher(Symbol* class_name, Mode class_mode, |
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129 Symbol* method_name, Mode method_mode, |
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130 Symbol* signature, MethodMatcher* next): |
0 | 131 _class_mode(class_mode) |
132 , _method_mode(method_mode) | |
133 , _next(next) | |
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134 , _class_name(class_name) |
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135 , _method_name(method_name) |
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136 , _signature(signature) { |
0 | 137 } |
138 | |
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139 bool MethodMatcher::match(Symbol* candidate, Symbol* match, Mode match_mode) { |
0 | 140 if (match_mode == Any) { |
141 return true; | |
142 } | |
143 | |
144 if (match_mode == Exact) { | |
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145 return candidate == match; |
0 | 146 } |
147 | |
148 ResourceMark rm; | |
149 const char * candidate_string = candidate->as_C_string(); | |
150 const char * match_string = match->as_C_string(); | |
151 | |
152 switch (match_mode) { | |
153 case Prefix: | |
154 return strstr(candidate_string, match_string) == candidate_string; | |
155 | |
156 case Suffix: { | |
157 size_t clen = strlen(candidate_string); | |
158 size_t mlen = strlen(match_string); | |
159 return clen >= mlen && strcmp(candidate_string + clen - mlen, match_string) == 0; | |
160 } | |
161 | |
162 case Substring: | |
163 return strstr(candidate_string, match_string) != NULL; | |
164 | |
165 default: | |
166 return false; | |
167 } | |
168 } | |
169 | |
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170 enum OptionType { |
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171 IntxType, |
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172 UintxType, |
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173 BoolType, |
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174 CcstrType, |
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175 UnknownType |
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176 }; |
0 | 177 |
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178 /* Methods to map real type names to OptionType */ |
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179 template<typename T> |
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180 static OptionType get_type_for() { |
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181 return UnknownType; |
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182 }; |
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183 |
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184 template<> OptionType get_type_for<intx>() { |
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185 return IntxType; |
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186 } |
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187 |
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188 template<> OptionType get_type_for<uintx>() { |
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189 return UintxType; |
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190 } |
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191 |
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192 template<> OptionType get_type_for<bool>() { |
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193 return BoolType; |
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194 } |
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195 |
20430 | 196 template<> OptionType get_type_for<ccstr>() { |
197 return CcstrType; | |
198 } | |
199 | |
200 template<typename T> | |
201 static const T copy_value(const T value) { | |
202 return value; | |
203 } | |
204 | |
205 template<> const ccstr copy_value<ccstr>(const ccstr value) { | |
206 return (const ccstr)strdup(value); | |
207 } | |
208 | |
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209 template <typename T> |
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210 class TypedMethodOptionMatcher : public MethodMatcher { |
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211 const char* _option; |
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212 OptionType _type; |
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213 const T _value; |
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214 |
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215 public: |
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216 TypedMethodOptionMatcher(Symbol* class_name, Mode class_mode, |
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217 Symbol* method_name, Mode method_mode, |
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218 Symbol* signature, const char* opt, |
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219 const T value, MethodMatcher* next) : |
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220 MethodMatcher(class_name, class_mode, method_name, method_mode, signature, next), |
20430 | 221 _type(get_type_for<T>()), _value(copy_value<T>(value)) { |
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222 _option = strdup(opt); |
0 | 223 } |
224 | |
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225 ~TypedMethodOptionMatcher() { |
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226 free((void*)_option); |
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227 } |
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228 |
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229 TypedMethodOptionMatcher* match(methodHandle method, const char* opt) { |
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230 TypedMethodOptionMatcher* current = this; |
0 | 231 while (current != NULL) { |
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232 current = (TypedMethodOptionMatcher*)current->find(method); |
0 | 233 if (current == NULL) { |
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234 return NULL; |
0 | 235 } |
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236 if (strcmp(current->_option, opt) == 0) { |
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237 return current; |
0 | 238 } |
239 current = current->next(); | |
240 } | |
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241 return NULL; |
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242 } |
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243 |
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244 TypedMethodOptionMatcher* next() { |
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245 return (TypedMethodOptionMatcher*)_next; |
0 | 246 } |
247 | |
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248 OptionType get_type(void) { |
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249 return _type; |
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250 }; |
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251 |
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252 T value() { return _value; } |
0 | 253 |
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254 void print() { |
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255 ttyLocker ttyl; |
0 | 256 print_base(); |
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257 tty->print(" %s", _option); |
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258 tty->print(" <unknown option type>"); |
0 | 259 tty->cr(); |
260 } | |
261 }; | |
262 | |
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263 template<> |
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264 void TypedMethodOptionMatcher<intx>::print() { |
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265 ttyLocker ttyl; |
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266 print_base(); |
20430 | 267 tty->print(" intx %s", _option); |
268 tty->print(" = " INTX_FORMAT, _value); | |
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269 tty->cr(); |
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270 }; |
0 | 271 |
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272 template<> |
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273 void TypedMethodOptionMatcher<uintx>::print() { |
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274 ttyLocker ttyl; |
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275 print_base(); |
20430 | 276 tty->print(" uintx %s", _option); |
277 tty->print(" = " UINTX_FORMAT, _value); | |
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278 tty->cr(); |
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279 }; |
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280 |
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281 template<> |
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282 void TypedMethodOptionMatcher<bool>::print() { |
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283 ttyLocker ttyl; |
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284 print_base(); |
20430 | 285 tty->print(" bool %s", _option); |
286 tty->print(" = %s", _value ? "true" : "false"); | |
287 tty->cr(); | |
288 }; | |
289 | |
290 template<> | |
291 void TypedMethodOptionMatcher<ccstr>::print() { | |
292 ttyLocker ttyl; | |
293 print_base(); | |
294 tty->print(" const char* %s", _option); | |
295 tty->print(" = '%s'", _value); | |
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296 tty->cr(); |
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297 }; |
0 | 298 |
299 // this must parallel the command_names below | |
300 enum OracleCommand { | |
301 UnknownCommand = -1, | |
302 OracleFirstCommand = 0, | |
303 BreakCommand = OracleFirstCommand, | |
304 PrintCommand, | |
305 ExcludeCommand, | |
306 InlineCommand, | |
307 DontInlineCommand, | |
308 CompileOnlyCommand, | |
309 LogCommand, | |
310 OptionCommand, | |
311 QuietCommand, | |
312 HelpCommand, | |
313 OracleCommandCount | |
314 }; | |
315 | |
316 // this must parallel the enum OracleCommand | |
317 static const char * command_names[] = { | |
318 "break", | |
319 "print", | |
320 "exclude", | |
321 "inline", | |
322 "dontinline", | |
323 "compileonly", | |
324 "log", | |
325 "option", | |
326 "quiet", | |
327 "help" | |
328 }; | |
329 | |
330 class MethodMatcher; | |
331 static MethodMatcher* lists[OracleCommandCount] = { 0, }; | |
332 | |
333 | |
334 static bool check_predicate(OracleCommand command, methodHandle method) { | |
335 return ((lists[command] != NULL) && | |
336 !method.is_null() && | |
337 lists[command]->match(method)); | |
338 } | |
339 | |
340 | |
341 static MethodMatcher* add_predicate(OracleCommand command, | |
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342 Symbol* class_name, MethodMatcher::Mode c_mode, |
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343 Symbol* method_name, MethodMatcher::Mode m_mode, |
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344 Symbol* signature) { |
0 | 345 assert(command != OptionCommand, "must use add_option_string"); |
346 if (command == LogCommand && !LogCompilation && lists[LogCommand] == NULL) | |
347 tty->print_cr("Warning: +LogCompilation must be enabled in order for individual methods to be logged."); | |
348 lists[command] = new MethodMatcher(class_name, c_mode, method_name, m_mode, signature, lists[command]); | |
349 return lists[command]; | |
350 } | |
351 | |
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352 template<typename T> |
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353 static MethodMatcher* add_option_string(Symbol* class_name, MethodMatcher::Mode c_mode, |
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354 Symbol* method_name, MethodMatcher::Mode m_mode, |
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355 Symbol* signature, |
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356 const char* option, |
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357 T value) { |
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358 lists[OptionCommand] = new TypedMethodOptionMatcher<T>(class_name, c_mode, method_name, m_mode, |
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359 signature, option, value, lists[OptionCommand]); |
0 | 360 return lists[OptionCommand]; |
361 } | |
362 | |
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363 template<typename T> |
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364 static bool get_option_value(methodHandle method, const char* option, T& value) { |
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365 TypedMethodOptionMatcher<T>* m; |
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366 if (lists[OptionCommand] != NULL |
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367 && (m = ((TypedMethodOptionMatcher<T>*)lists[OptionCommand])->match(method, option)) != NULL |
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368 && m->get_type() == get_type_for<T>()) { |
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369 value = m->value(); |
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370 return true; |
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371 } else { |
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372 return false; |
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373 } |
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374 } |
0 | 375 |
376 bool CompilerOracle::has_option_string(methodHandle method, const char* option) { | |
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377 bool value = false; |
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378 get_option_value(method, option, value); |
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379 return value; |
0 | 380 } |
381 | |
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382 template<typename T> |
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383 bool CompilerOracle::has_option_value(methodHandle method, const char* option, T& value) { |
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384 return ::get_option_value(method, option, value); |
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385 } |
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386 |
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387 // Explicit instantiation for all OptionTypes supported. |
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388 template bool CompilerOracle::has_option_value<intx>(methodHandle method, const char* option, intx& value); |
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389 template bool CompilerOracle::has_option_value<uintx>(methodHandle method, const char* option, uintx& value); |
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390 template bool CompilerOracle::has_option_value<bool>(methodHandle method, const char* option, bool& value); |
20430 | 391 template bool CompilerOracle::has_option_value<ccstr>(methodHandle method, const char* option, ccstr& value); |
0 | 392 |
393 bool CompilerOracle::should_exclude(methodHandle method, bool& quietly) { | |
394 quietly = true; | |
395 if (lists[ExcludeCommand] != NULL) { | |
396 if (lists[ExcludeCommand]->match(method)) { | |
397 quietly = _quiet; | |
398 return true; | |
399 } | |
400 } | |
401 | |
402 if (lists[CompileOnlyCommand] != NULL) { | |
403 return !lists[CompileOnlyCommand]->match(method); | |
404 } | |
405 return false; | |
406 } | |
407 | |
408 | |
409 bool CompilerOracle::should_inline(methodHandle method) { | |
410 return (check_predicate(InlineCommand, method)); | |
411 } | |
412 | |
413 | |
414 bool CompilerOracle::should_not_inline(methodHandle method) { | |
415 return (check_predicate(DontInlineCommand, method)); | |
416 } | |
417 | |
418 | |
419 bool CompilerOracle::should_print(methodHandle method) { | |
420 return (check_predicate(PrintCommand, method)); | |
421 } | |
422 | |
423 | |
424 bool CompilerOracle::should_log(methodHandle method) { | |
425 if (!LogCompilation) return false; | |
426 if (lists[LogCommand] == NULL) return true; // by default, log all | |
427 return (check_predicate(LogCommand, method)); | |
428 } | |
429 | |
430 | |
431 bool CompilerOracle::should_break_at(methodHandle method) { | |
432 return check_predicate(BreakCommand, method); | |
433 } | |
434 | |
435 | |
436 static OracleCommand parse_command_name(const char * line, int* bytes_read) { | |
437 assert(ARRAY_SIZE(command_names) == OracleCommandCount, | |
438 "command_names size mismatch"); | |
439 | |
440 *bytes_read = 0; | |
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441 char command[33]; |
0 | 442 int result = sscanf(line, "%32[a-z]%n", command, bytes_read); |
443 for (uint i = 0; i < ARRAY_SIZE(command_names); i++) { | |
444 if (strcmp(command, command_names[i]) == 0) { | |
445 return (OracleCommand)i; | |
446 } | |
447 } | |
448 return UnknownCommand; | |
449 } | |
450 | |
451 | |
452 static void usage() { | |
453 tty->print_cr(" CompileCommand and the CompilerOracle allows simple control over"); | |
454 tty->print_cr(" what's allowed to be compiled. The standard supported directives"); | |
455 tty->print_cr(" are exclude and compileonly. The exclude directive stops a method"); | |
456 tty->print_cr(" from being compiled and compileonly excludes all methods except for"); | |
457 tty->print_cr(" the ones mentioned by compileonly directives. The basic form of"); | |
458 tty->print_cr(" all commands is a command name followed by the name of the method"); | |
459 tty->print_cr(" in one of two forms: the standard class file format as in"); | |
460 tty->print_cr(" class/name.methodName or the PrintCompilation format"); | |
461 tty->print_cr(" class.name::methodName. The method name can optionally be followed"); | |
462 tty->print_cr(" by a space then the signature of the method in the class file"); | |
463 tty->print_cr(" format. Otherwise the directive applies to all methods with the"); | |
464 tty->print_cr(" same name and class regardless of signature. Leading and trailing"); | |
465 tty->print_cr(" *'s in the class and/or method name allows a small amount of"); | |
466 tty->print_cr(" wildcarding. "); | |
467 tty->cr(); | |
468 tty->print_cr(" Examples:"); | |
469 tty->cr(); | |
470 tty->print_cr(" exclude java/lang/StringBuffer.append"); | |
471 tty->print_cr(" compileonly java/lang/StringBuffer.toString ()Ljava/lang/String;"); | |
472 tty->print_cr(" exclude java/lang/String*.*"); | |
473 tty->print_cr(" exclude *.toString"); | |
474 } | |
475 | |
476 | |
477 // The characters allowed in a class or method name. All characters > 0x7f | |
478 // are allowed in order to handle obfuscated class files (e.g. Volano) | |
479 #define RANGEBASE "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789$_<>" \ | |
480 "\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f" \ | |
481 "\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f" \ | |
482 "\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf" \ | |
483 "\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf" \ | |
484 "\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf" \ | |
485 "\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf" \ | |
486 "\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef" \ | |
487 "\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff" | |
488 | |
489 #define RANGE0 "[*" RANGEBASE "]" | |
490 #define RANGEDOT "[*" RANGEBASE ".]" | |
491 #define RANGESLASH "[*" RANGEBASE "/]" | |
492 | |
493 | |
494 // Accept several syntaxes for these patterns | |
495 // original syntax | |
496 // cmd java.lang.String foo | |
497 // PrintCompilation syntax | |
498 // cmd java.lang.String::foo | |
499 // VM syntax | |
500 // cmd java/lang/String[. ]foo | |
501 // | |
502 | |
503 static const char* patterns[] = { | |
504 "%*[ \t]%255" RANGEDOT " " "%255" RANGE0 "%n", | |
505 "%*[ \t]%255" RANGEDOT "::" "%255" RANGE0 "%n", | |
506 "%*[ \t]%255" RANGESLASH "%*[ .]" "%255" RANGE0 "%n", | |
507 }; | |
508 | |
509 static MethodMatcher::Mode check_mode(char name[], const char*& error_msg) { | |
510 int match = MethodMatcher::Exact; | |
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511 while (name[0] == '*') { |
0 | 512 match |= MethodMatcher::Suffix; |
513 strcpy(name, name + 1); | |
514 } | |
515 | |
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516 if (strcmp(name, "*") == 0) return MethodMatcher::Any; |
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517 |
0 | 518 size_t len = strlen(name); |
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519 while (len > 0 && name[len - 1] == '*') { |
0 | 520 match |= MethodMatcher::Prefix; |
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521 name[--len] = '\0'; |
0 | 522 } |
523 | |
524 if (strstr(name, "*") != NULL) { | |
525 error_msg = " Embedded * not allowed"; | |
526 return MethodMatcher::Unknown; | |
527 } | |
528 return (MethodMatcher::Mode)match; | |
529 } | |
530 | |
531 static bool scan_line(const char * line, | |
532 char class_name[], MethodMatcher::Mode* c_mode, | |
533 char method_name[], MethodMatcher::Mode* m_mode, | |
534 int* bytes_read, const char*& error_msg) { | |
535 *bytes_read = 0; | |
536 error_msg = NULL; | |
537 for (uint i = 0; i < ARRAY_SIZE(patterns); i++) { | |
538 if (2 == sscanf(line, patterns[i], class_name, method_name, bytes_read)) { | |
539 *c_mode = check_mode(class_name, error_msg); | |
540 *m_mode = check_mode(method_name, error_msg); | |
541 return *c_mode != MethodMatcher::Unknown && *m_mode != MethodMatcher::Unknown; | |
542 } | |
543 } | |
544 return false; | |
545 } | |
546 | |
547 | |
548 | |
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549 // Scan next flag and value in line, return MethodMatcher object on success, NULL on failure. |
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550 // On failure, error_msg contains description for the first error. |
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551 // For future extensions: set error_msg on first error. |
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552 static MethodMatcher* scan_flag_and_value(const char* type, const char* line, int& total_bytes_read, |
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553 Symbol* c_name, MethodMatcher::Mode c_match, |
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554 Symbol* m_name, MethodMatcher::Mode m_match, |
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555 Symbol* signature, |
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556 char* errorbuf, const int buf_size) { |
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557 total_bytes_read = 0; |
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558 int bytes_read = 0; |
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559 char flag[256]; |
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560 |
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561 // Read flag name. |
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562 if (sscanf(line, "%*[ \t]%255[a-zA-Z0-9]%n", flag, &bytes_read) == 1) { |
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563 line += bytes_read; |
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564 total_bytes_read += bytes_read; |
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565 |
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566 // Read value. |
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567 if (strcmp(type, "intx") == 0) { |
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568 intx value; |
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569 if (sscanf(line, "%*[ \t]" INTX_FORMAT "%n", &value, &bytes_read) == 1) { |
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570 total_bytes_read += bytes_read; |
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571 return add_option_string(c_name, c_match, m_name, m_match, signature, flag, value); |
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572 } else { |
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573 jio_snprintf(errorbuf, buf_size, " Value cannot be read for flag %s of type %s ", flag, type); |
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574 } |
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575 } else if (strcmp(type, "uintx") == 0) { |
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576 uintx value; |
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577 if (sscanf(line, "%*[ \t]" UINTX_FORMAT "%n", &value, &bytes_read) == 1) { |
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578 total_bytes_read += bytes_read; |
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579 return add_option_string(c_name, c_match, m_name, m_match, signature, flag, value); |
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580 } else { |
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581 jio_snprintf(errorbuf, buf_size, " Value cannot be read for flag %s of type %s", flag, type); |
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582 } |
20430 | 583 } else if (strcmp(type, "ccstr") == 0) { |
584 ResourceMark rm; | |
585 char* value = NEW_RESOURCE_ARRAY(char, strlen(line) + 1); | |
586 if (sscanf(line, "%*[ \t]%255[_a-zA-Z0-9]%n", value, &bytes_read) == 1) { | |
587 total_bytes_read += bytes_read; | |
588 return add_option_string(c_name, c_match, m_name, m_match, signature, flag, (ccstr)value); | |
589 } else { | |
590 jio_snprintf(errorbuf, buf_size, " Value cannot be read for flag %s of type %s", flag, type); | |
591 } | |
592 } else if (strcmp(type, "ccstrlist") == 0) { | |
593 // Accumulates several strings into one. The internal type is ccstr. | |
594 ResourceMark rm; | |
595 char* value = NEW_RESOURCE_ARRAY(char, strlen(line) + 1); | |
596 char* next_value = value; | |
597 if (sscanf(line, "%*[ \t]%255[_a-zA-Z0-9]%n", next_value, &bytes_read) == 1) { | |
598 total_bytes_read += bytes_read; | |
599 line += bytes_read; | |
600 next_value += bytes_read; | |
601 char* end_value = next_value-1; | |
602 while (sscanf(line, "%*[ \t]%255[_a-zA-Z0-9]%n", next_value, &bytes_read) == 1) { | |
603 total_bytes_read += bytes_read; | |
604 line += bytes_read; | |
605 *end_value = ' '; // override '\0' | |
606 next_value += bytes_read; | |
607 end_value = next_value-1; | |
608 } | |
609 return add_option_string(c_name, c_match, m_name, m_match, signature, flag, (ccstr)value); | |
610 } else { | |
611 jio_snprintf(errorbuf, buf_size, " Value cannot be read for flag %s of type %s", flag, type); | |
612 } | |
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613 } else if (strcmp(type, "bool") == 0) { |
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614 char value[256]; |
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615 if (sscanf(line, "%*[ \t]%255[a-zA-Z]%n", value, &bytes_read) == 1) { |
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616 if (strcmp(value, "true") == 0) { |
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617 total_bytes_read += bytes_read; |
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618 return add_option_string(c_name, c_match, m_name, m_match, signature, flag, true); |
20430 | 619 } else if (strcmp(value, "false") == 0) { |
620 total_bytes_read += bytes_read; | |
621 return add_option_string(c_name, c_match, m_name, m_match, signature, flag, false); | |
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622 } else { |
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623 jio_snprintf(errorbuf, buf_size, " Value cannot be read for flag %s of type %s", flag, type); |
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624 } |
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625 } else { |
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626 jio_snprintf(errorbuf, sizeof(errorbuf), " Value cannot be read for flag %s of type %s", flag, type); |
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627 } |
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628 } else { |
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629 jio_snprintf(errorbuf, sizeof(errorbuf), " Type %s not supported ", type); |
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630 } |
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631 } else { |
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632 jio_snprintf(errorbuf, sizeof(errorbuf), " Flag name for type %s should be alphanumeric ", type); |
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633 } |
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634 return NULL; |
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635 } |
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636 |
0 | 637 void CompilerOracle::parse_from_line(char* line) { |
638 if (line[0] == '\0') return; | |
639 if (line[0] == '#') return; | |
640 | |
641 bool have_colon = (strstr(line, "::") != NULL); | |
642 for (char* lp = line; *lp != '\0'; lp++) { | |
643 // Allow '.' to separate the class name from the method name. | |
644 // This is the preferred spelling of methods: | |
645 // exclude java/lang/String.indexOf(I)I | |
646 // Allow ',' for spaces (eases command line quoting). | |
647 // exclude,java/lang/String.indexOf | |
648 // For backward compatibility, allow space as separator also. | |
649 // exclude java/lang/String indexOf | |
650 // exclude,java/lang/String,indexOf | |
651 // For easy cut-and-paste of method names, allow VM output format | |
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652 // as produced by Method::print_short_name: |
0 | 653 // exclude java.lang.String::indexOf |
654 // For simple implementation convenience here, convert them all to space. | |
655 if (have_colon) { | |
656 if (*lp == '.') *lp = '/'; // dots build the package prefix | |
657 if (*lp == ':') *lp = ' '; | |
658 } | |
659 if (*lp == ',' || *lp == '.') *lp = ' '; | |
660 } | |
661 | |
662 char* original_line = line; | |
663 int bytes_read; | |
664 OracleCommand command = parse_command_name(line, &bytes_read); | |
665 line += bytes_read; | |
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666 ResourceMark rm; |
0 | 667 |
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668 if (command == UnknownCommand) { |
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669 ttyLocker ttyl; |
2077
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670 tty->print_cr("CompilerOracle: unrecognized line"); |
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671 tty->print_cr(" \"%s\"", original_line); |
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672 return; |
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673 } |
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674 |
0 | 675 if (command == QuietCommand) { |
676 _quiet = true; | |
677 return; | |
678 } | |
679 | |
680 if (command == HelpCommand) { | |
681 usage(); | |
682 return; | |
683 } | |
684 | |
685 MethodMatcher::Mode c_match = MethodMatcher::Exact; | |
686 MethodMatcher::Mode m_match = MethodMatcher::Exact; | |
687 char class_name[256]; | |
688 char method_name[256]; | |
689 char sig[1024]; | |
690 char errorbuf[1024]; | |
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691 const char* error_msg = NULL; // description of first error that appears |
0 | 692 MethodMatcher* match = NULL; |
693 | |
694 if (scan_line(line, class_name, &c_match, method_name, &m_match, &bytes_read, error_msg)) { | |
695 EXCEPTION_MARK; | |
2177
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696 Symbol* c_name = SymbolTable::new_symbol(class_name, CHECK); |
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697 Symbol* m_name = SymbolTable::new_symbol(method_name, CHECK); |
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698 Symbol* signature = NULL; |
0 | 699 |
700 line += bytes_read; | |
701 // there might be a signature following the method. | |
702 // signatures always begin with ( so match that by hand | |
2077
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703 if (1 == sscanf(line, "%*[ \t](%254[[);/" RANGEBASE "]%n", sig + 1, &bytes_read)) { |
0 | 704 sig[0] = '('; |
705 line += bytes_read; | |
2177
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706 signature = SymbolTable::new_symbol(sig, CHECK); |
0 | 707 } |
708 | |
709 if (command == OptionCommand) { | |
20429
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710 // Look for trailing options. |
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711 // |
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712 // Two types of trailing options are |
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713 // supported: |
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714 // |
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715 // (1) CompileCommand=option,Klass::method,flag |
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716 // (2) CompileCommand=option,Klass::method,type,flag,value |
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717 // |
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718 // Type (1) is used to support ciMethod::has_option("someflag") |
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719 // (i.e., to check if a flag "someflag" is enabled for a method). |
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720 // |
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721 // Type (2) is used to support options with a value. Values can have the |
20430 | 722 // the following types: intx, uintx, bool, ccstr, and ccstrlist. |
20429
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723 // |
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724 // For future extensions: extend scan_flag_and_value() |
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725 char option[256]; // stores flag for Type (1) and type of Type (2) |
0 | 726 while (sscanf(line, "%*[ \t]%255[a-zA-Z0-9]%n", option, &bytes_read) == 1) { |
727 if (match != NULL && !_quiet) { | |
728 // Print out the last match added | |
20429
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729 ttyLocker ttyl; |
0 | 730 tty->print("CompilerOracle: %s ", command_names[command]); |
731 match->print(); | |
732 } | |
733 line += bytes_read; | |
20429
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734 |
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735 if (strcmp(option, "intx") == 0 |
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736 || strcmp(option, "uintx") == 0 |
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737 || strcmp(option, "bool") == 0 |
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738 || strcmp(option, "ccstr") == 0 |
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739 || strcmp(option, "ccstrlist") == 0 |
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740 ) { |
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|
741 |
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742 // Type (2) option: parse flag name and value. |
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743 match = scan_flag_and_value(option, line, bytes_read, |
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744 c_name, c_match, m_name, m_match, signature, |
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745 errorbuf, sizeof(errorbuf)); |
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746 if (match == NULL) { |
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747 error_msg = errorbuf; |
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748 break; |
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|
749 } |
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750 line += bytes_read; |
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751 } else { |
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752 // Type (1) option |
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753 match = add_option_string(c_name, c_match, m_name, m_match, signature, option, true); |
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754 } |
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755 } // while( |
0 | 756 } else { |
20429
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757 match = add_predicate(command, c_name, c_match, m_name, m_match, signature); |
0 | 758 } |
759 } | |
760 | |
20429
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761 ttyLocker ttyl; |
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762 if (error_msg != NULL) { |
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763 // an error has happened |
0 | 764 tty->print_cr("CompilerOracle: unrecognized line"); |
765 tty->print_cr(" \"%s\"", original_line); | |
766 if (error_msg != NULL) { | |
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767 tty->print_cr("%s", error_msg); |
0 | 768 } |
20429
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769 } else { |
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770 // check for remaining characters |
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771 bytes_read = 0; |
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772 sscanf(line, "%*[ \t]%n", &bytes_read); |
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773 if (line[bytes_read] != '\0') { |
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774 tty->print_cr("CompilerOracle: unrecognized line"); |
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775 tty->print_cr(" \"%s\"", original_line); |
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776 tty->print_cr(" Unrecognized text %s after command ", line); |
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777 } else if (match != NULL && !_quiet) { |
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778 tty->print("CompilerOracle: %s ", command_names[command]); |
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779 match->print(); |
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780 } |
0 | 781 } |
782 } | |
783 | |
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784 static const char* default_cc_file = ".hotspot_compiler"; |
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785 |
0 | 786 static const char* cc_file() { |
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787 #ifdef ASSERT |
0 | 788 if (CompileCommandFile == NULL) |
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789 return default_cc_file; |
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790 #endif |
0 | 791 return CompileCommandFile; |
792 } | |
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793 |
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794 bool CompilerOracle::has_command_file() { |
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795 return cc_file() != NULL; |
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796 } |
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797 |
0 | 798 bool CompilerOracle::_quiet = false; |
799 | |
800 void CompilerOracle::parse_from_file() { | |
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801 assert(has_command_file(), "command file must be specified"); |
0 | 802 FILE* stream = fopen(cc_file(), "rt"); |
803 if (stream == NULL) return; | |
804 | |
805 char token[1024]; | |
806 int pos = 0; | |
807 int c = getc(stream); | |
6901 | 808 while(c != EOF && pos < (int)(sizeof(token)-1)) { |
0 | 809 if (c == '\n') { |
810 token[pos++] = '\0'; | |
811 parse_from_line(token); | |
812 pos = 0; | |
813 } else { | |
814 token[pos++] = c; | |
815 } | |
816 c = getc(stream); | |
817 } | |
818 token[pos++] = '\0'; | |
819 parse_from_line(token); | |
820 | |
821 fclose(stream); | |
822 } | |
823 | |
824 void CompilerOracle::parse_from_string(const char* str, void (*parse_line)(char*)) { | |
825 char token[1024]; | |
826 int pos = 0; | |
827 const char* sp = str; | |
828 int c = *sp++; | |
6901 | 829 while (c != '\0' && pos < (int)(sizeof(token)-1)) { |
0 | 830 if (c == '\n') { |
831 token[pos++] = '\0'; | |
832 parse_line(token); | |
833 pos = 0; | |
834 } else { | |
835 token[pos++] = c; | |
836 } | |
837 c = *sp++; | |
838 } | |
839 token[pos++] = '\0'; | |
840 parse_line(token); | |
841 } | |
842 | |
843 void CompilerOracle::append_comment_to_file(const char* message) { | |
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844 assert(has_command_file(), "command file must be specified"); |
0 | 845 fileStream stream(fopen(cc_file(), "at")); |
846 stream.print("# "); | |
847 for (int index = 0; message[index] != '\0'; index++) { | |
848 stream.put(message[index]); | |
849 if (message[index] == '\n') stream.print("# "); | |
850 } | |
851 stream.cr(); | |
852 } | |
853 | |
854 void CompilerOracle::append_exclude_to_file(methodHandle method) { | |
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855 assert(has_command_file(), "command file must be specified"); |
0 | 856 fileStream stream(fopen(cc_file(), "at")); |
857 stream.print("exclude "); | |
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858 method->method_holder()->name()->print_symbol_on(&stream); |
0 | 859 stream.print("."); |
860 method->name()->print_symbol_on(&stream); | |
861 method->signature()->print_symbol_on(&stream); | |
862 stream.cr(); | |
863 stream.cr(); | |
864 } | |
865 | |
866 | |
867 void compilerOracle_init() { | |
868 CompilerOracle::parse_from_string(CompileCommand, CompilerOracle::parse_from_line); | |
869 CompilerOracle::parse_from_string(CompileOnly, CompilerOracle::parse_compile_only); | |
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870 if (CompilerOracle::has_command_file()) { |
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871 CompilerOracle::parse_from_file(); |
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872 } else { |
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873 struct stat buf; |
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874 if (os::stat(default_cc_file, &buf) == 0) { |
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875 warning("%s file is present but has been ignored. " |
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876 "Run with -XX:CompileCommandFile=%s to load the file.", |
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877 default_cc_file, default_cc_file); |
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878 } |
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879 } |
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880 if (lists[PrintCommand] != NULL) { |
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881 if (PrintAssembly) { |
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882 warning("CompileCommand and/or %s file contains 'print' commands, but PrintAssembly is also enabled", default_cc_file); |
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883 } else if (FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
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884 warning("printing of assembly code is enabled; turning on DebugNonSafepoints to gain additional output"); |
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885 DebugNonSafepoints = true; |
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886 } |
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887 } |
0 | 888 } |
889 | |
890 | |
891 void CompilerOracle::parse_compile_only(char * line) { | |
892 int i; | |
893 char name[1024]; | |
894 const char* className = NULL; | |
895 const char* methodName = NULL; | |
896 | |
897 bool have_colon = (strstr(line, "::") != NULL); | |
898 char method_sep = have_colon ? ':' : '.'; | |
899 | |
900 if (Verbose) { | |
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901 tty->print_cr("%s", line); |
0 | 902 } |
903 | |
904 ResourceMark rm; | |
905 while (*line != '\0') { | |
906 MethodMatcher::Mode c_match = MethodMatcher::Exact; | |
907 MethodMatcher::Mode m_match = MethodMatcher::Exact; | |
908 | |
909 for (i = 0; | |
910 i < 1024 && *line != '\0' && *line != method_sep && *line != ',' && !isspace(*line); | |
911 line++, i++) { | |
912 name[i] = *line; | |
913 if (name[i] == '.') name[i] = '/'; // package prefix uses '/' | |
914 } | |
915 | |
916 if (i > 0) { | |
917 char* newName = NEW_RESOURCE_ARRAY( char, i + 1); | |
918 if (newName == NULL) | |
919 return; | |
920 strncpy(newName, name, i); | |
921 newName[i] = '\0'; | |
922 | |
923 if (className == NULL) { | |
924 className = newName; | |
925 c_match = MethodMatcher::Prefix; | |
926 } else { | |
927 methodName = newName; | |
928 } | |
929 } | |
930 | |
931 if (*line == method_sep) { | |
932 if (className == NULL) { | |
933 className = ""; | |
934 c_match = MethodMatcher::Any; | |
935 } else { | |
936 // foo/bar.blah is an exact match on foo/bar, bar.blah is a suffix match on bar | |
937 if (strchr(className, '/') != NULL) { | |
938 c_match = MethodMatcher::Exact; | |
939 } else { | |
940 c_match = MethodMatcher::Suffix; | |
941 } | |
942 } | |
943 } else { | |
944 // got foo or foo/bar | |
945 if (className == NULL) { | |
946 ShouldNotReachHere(); | |
947 } else { | |
948 // got foo or foo/bar | |
949 if (strchr(className, '/') != NULL) { | |
950 c_match = MethodMatcher::Prefix; | |
951 } else if (className[0] == '\0') { | |
952 c_match = MethodMatcher::Any; | |
953 } else { | |
954 c_match = MethodMatcher::Substring; | |
955 } | |
956 } | |
957 } | |
958 | |
959 // each directive is terminated by , or NUL or . followed by NUL | |
960 if (*line == ',' || *line == '\0' || (line[0] == '.' && line[1] == '\0')) { | |
961 if (methodName == NULL) { | |
962 methodName = ""; | |
963 if (*line != method_sep) { | |
964 m_match = MethodMatcher::Any; | |
965 } | |
966 } | |
967 | |
968 EXCEPTION_MARK; | |
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969 Symbol* c_name = SymbolTable::new_symbol(className, CHECK); |
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970 Symbol* m_name = SymbolTable::new_symbol(methodName, CHECK); |
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971 Symbol* signature = NULL; |
0 | 972 |
973 add_predicate(CompileOnlyCommand, c_name, c_match, m_name, m_match, signature); | |
974 if (PrintVMOptions) { | |
975 tty->print("CompileOnly: compileonly "); | |
976 lists[CompileOnlyCommand]->print(); | |
977 } | |
978 | |
979 className = NULL; | |
980 methodName = NULL; | |
981 } | |
982 | |
983 line = *line == '\0' ? line : line + 1; | |
984 } | |
985 } |