Mercurial > hg > truffle
annotate src/share/vm/runtime/globals.cpp @ 858:5314d85ffd54
6826736: CMS: core dump with -XX:+UseCompressedOops
Summary: Fix deoptimization code and OopMapSet::all_do() to check for oop = narrow_oop_base.
Reviewed-by: jcoomes, phh, ysr, never
author | kvn |
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date | Wed, 22 Jul 2009 15:48:51 -0700 |
parents | be41fa651400 |
children | 473cce303f13 |
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 # include "incls/_precompiled.incl" | |
26 # include "incls/_globals.cpp.incl" | |
27 | |
28 | |
29 RUNTIME_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PD_DEVELOPER_FLAG, \ | |
30 MATERIALIZE_PRODUCT_FLAG, MATERIALIZE_PD_PRODUCT_FLAG, \ | |
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31 MATERIALIZE_DIAGNOSTIC_FLAG, MATERIALIZE_EXPERIMENTAL_FLAG, \ |
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32 MATERIALIZE_NOTPRODUCT_FLAG, \ |
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33 MATERIALIZE_MANAGEABLE_FLAG, MATERIALIZE_PRODUCT_RW_FLAG, \ |
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34 MATERIALIZE_LP64_PRODUCT_FLAG) |
0 | 35 |
36 RUNTIME_OS_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PD_DEVELOPER_FLAG, \ | |
37 MATERIALIZE_PRODUCT_FLAG, MATERIALIZE_PD_PRODUCT_FLAG, \ | |
38 MATERIALIZE_DIAGNOSTIC_FLAG, MATERIALIZE_NOTPRODUCT_FLAG) | |
39 | |
40 bool Flag::is_unlocker() const { | |
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41 return strcmp(name, "UnlockDiagnosticVMOptions") == 0 || |
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42 strcmp(name, "UnlockExperimentalVMOptions") == 0; |
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43 |
0 | 44 } |
45 | |
46 bool Flag::is_unlocked() const { | |
47 if (strcmp(kind, "{diagnostic}") == 0) { | |
48 return UnlockDiagnosticVMOptions; | |
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49 } else if (strcmp(kind, "{experimental}") == 0) { |
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50 return UnlockExperimentalVMOptions; |
0 | 51 } else { |
52 return true; | |
53 } | |
54 } | |
55 | |
56 bool Flag::is_writeable() const { | |
57 return (strcmp(kind, "{manageable}") == 0 || strcmp(kind, "{product rw}") == 0); | |
58 } | |
59 | |
60 // All flags except "manageable" are assumed internal flags. | |
61 // Long term, we need to define a mechanism to specify which flags | |
62 // are external/stable and change this function accordingly. | |
63 bool Flag::is_external() const { | |
64 return (strcmp(kind, "{manageable}") == 0); | |
65 } | |
66 | |
67 // Length of format string (e.g. "%.1234s") for printing ccstr below | |
68 #define FORMAT_BUFFER_LEN 16 | |
69 | |
70 void Flag::print_on(outputStream* st) { | |
71 st->print("%5s %-35s %c= ", type, name, (origin != DEFAULT ? ':' : ' ')); | |
72 if (is_bool()) st->print("%-16s", get_bool() ? "true" : "false"); | |
73 if (is_intx()) st->print("%-16ld", get_intx()); | |
74 if (is_uintx()) st->print("%-16lu", get_uintx()); | |
75 if (is_ccstr()) { | |
76 const char* cp = get_ccstr(); | |
103 | 77 if (cp != NULL) { |
78 const char* eol; | |
79 while ((eol = strchr(cp, '\n')) != NULL) { | |
80 char format_buffer[FORMAT_BUFFER_LEN]; | |
81 size_t llen = pointer_delta(eol, cp, sizeof(char)); | |
82 jio_snprintf(format_buffer, FORMAT_BUFFER_LEN, | |
83 "%%." SIZE_FORMAT "s", llen); | |
84 st->print(format_buffer, cp); | |
85 st->cr(); | |
86 cp = eol+1; | |
87 st->print("%5s %-35s += ", "", name); | |
88 } | |
89 st->print("%-16s", cp); | |
0 | 90 } |
91 } | |
92 st->print(" %s", kind); | |
93 st->cr(); | |
94 } | |
95 | |
96 void Flag::print_as_flag(outputStream* st) { | |
97 if (is_bool()) { | |
98 st->print("-XX:%s%s", get_bool() ? "+" : "-", name); | |
99 } else if (is_intx()) { | |
100 st->print("-XX:%s=" INTX_FORMAT, name, get_intx()); | |
101 } else if (is_uintx()) { | |
102 st->print("-XX:%s=" UINTX_FORMAT, name, get_uintx()); | |
103 } else if (is_ccstr()) { | |
104 st->print("-XX:%s=", name); | |
103 | 105 const char* cp = get_ccstr(); |
106 if (cp != NULL) { | |
107 // Need to turn embedded '\n's back into separate arguments | |
108 // Not so efficient to print one character at a time, | |
109 // but the choice is to do the transformation to a buffer | |
110 // and print that. And this need not be efficient. | |
111 for (; *cp != '\0'; cp += 1) { | |
112 switch (*cp) { | |
113 default: | |
114 st->print("%c", *cp); | |
115 break; | |
116 case '\n': | |
117 st->print(" -XX:%s=", name); | |
118 break; | |
119 } | |
0 | 120 } |
121 } | |
122 } else { | |
123 ShouldNotReachHere(); | |
124 } | |
125 } | |
126 | |
127 // 4991491 do not "optimize out" the was_set false values: omitting them | |
128 // tickles a Microsoft compiler bug causing flagTable to be malformed | |
129 | |
130 #define RUNTIME_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{product}", DEFAULT }, | |
131 #define RUNTIME_PD_PRODUCT_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, "{pd product}", DEFAULT }, | |
132 #define RUNTIME_DIAGNOSTIC_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{diagnostic}", DEFAULT }, | |
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133 #define RUNTIME_EXPERIMENTAL_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{experimental}", DEFAULT }, |
0 | 134 #define RUNTIME_MANAGEABLE_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{manageable}", DEFAULT }, |
135 #define RUNTIME_PRODUCT_RW_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{product rw}", DEFAULT }, | |
136 | |
137 #ifdef PRODUCT | |
138 #define RUNTIME_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
139 #define RUNTIME_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
140 #define RUNTIME_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
141 #else | |
142 #define RUNTIME_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "", DEFAULT }, | |
143 #define RUNTIME_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, "{pd}", DEFAULT }, | |
144 #define RUNTIME_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{notproduct}", DEFAULT }, | |
145 #endif | |
146 | |
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147 #ifdef _LP64 |
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148 #define RUNTIME_LP64_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{lp64_product}", DEFAULT }, |
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149 #else |
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150 #define RUNTIME_LP64_PRODUCT_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ |
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151 #endif // _LP64 |
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152 |
0 | 153 #define C1_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{C1 product}", DEFAULT }, |
154 #define C1_PD_PRODUCT_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, "{C1 pd product}", DEFAULT }, | |
155 #ifdef PRODUCT | |
156 #define C1_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
157 #define C1_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
158 #define C1_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
159 #else | |
160 #define C1_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{C1}", DEFAULT }, | |
161 #define C1_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, "{C1 pd}", DEFAULT }, | |
162 #define C1_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{C1 notproduct}", DEFAULT }, | |
163 #endif | |
164 | |
165 | |
166 #define C2_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{C2 product}", DEFAULT }, | |
167 #define C2_PD_PRODUCT_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, "{C2 pd product}", DEFAULT }, | |
168 #define C2_DIAGNOSTIC_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{C2 diagnostic}", DEFAULT }, | |
169 #ifdef PRODUCT | |
170 #define C2_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
171 #define C2_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
172 #define C2_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
173 #else | |
174 #define C2_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{C2}", DEFAULT }, | |
175 #define C2_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, "{C2 pd}", DEFAULT }, | |
176 #define C2_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{C2 notproduct}", DEFAULT }, | |
177 #endif | |
178 | |
179 | |
180 static Flag flagTable[] = { | |
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181 RUNTIME_FLAGS(RUNTIME_DEVELOP_FLAG_STRUCT, RUNTIME_PD_DEVELOP_FLAG_STRUCT, RUNTIME_PRODUCT_FLAG_STRUCT, RUNTIME_PD_PRODUCT_FLAG_STRUCT, RUNTIME_DIAGNOSTIC_FLAG_STRUCT, RUNTIME_EXPERIMENTAL_FLAG_STRUCT, RUNTIME_NOTPRODUCT_FLAG_STRUCT, RUNTIME_MANAGEABLE_FLAG_STRUCT, RUNTIME_PRODUCT_RW_FLAG_STRUCT, RUNTIME_LP64_PRODUCT_FLAG_STRUCT) |
0 | 182 RUNTIME_OS_FLAGS(RUNTIME_DEVELOP_FLAG_STRUCT, RUNTIME_PD_DEVELOP_FLAG_STRUCT, RUNTIME_PRODUCT_FLAG_STRUCT, RUNTIME_PD_PRODUCT_FLAG_STRUCT, RUNTIME_DIAGNOSTIC_FLAG_STRUCT, RUNTIME_NOTPRODUCT_FLAG_STRUCT) |
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183 #ifndef SERIALGC |
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184 G1_FLAGS(RUNTIME_DEVELOP_FLAG_STRUCT, RUNTIME_PD_DEVELOP_FLAG_STRUCT, RUNTIME_PRODUCT_FLAG_STRUCT, RUNTIME_PD_PRODUCT_FLAG_STRUCT, RUNTIME_DIAGNOSTIC_FLAG_STRUCT, RUNTIME_EXPERIMENTAL_FLAG_STRUCT, RUNTIME_NOTPRODUCT_FLAG_STRUCT, RUNTIME_MANAGEABLE_FLAG_STRUCT, RUNTIME_PRODUCT_RW_FLAG_STRUCT) |
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185 #endif // SERIALGC |
0 | 186 #ifdef COMPILER1 |
187 C1_FLAGS(C1_DEVELOP_FLAG_STRUCT, C1_PD_DEVELOP_FLAG_STRUCT, C1_PRODUCT_FLAG_STRUCT, C1_PD_PRODUCT_FLAG_STRUCT, C1_NOTPRODUCT_FLAG_STRUCT) | |
188 #endif | |
189 #ifdef COMPILER2 | |
190 C2_FLAGS(C2_DEVELOP_FLAG_STRUCT, C2_PD_DEVELOP_FLAG_STRUCT, C2_PRODUCT_FLAG_STRUCT, C2_PD_PRODUCT_FLAG_STRUCT, C2_DIAGNOSTIC_FLAG_STRUCT, C2_NOTPRODUCT_FLAG_STRUCT) | |
191 #endif | |
192 {0, NULL, NULL} | |
193 }; | |
194 | |
195 Flag* Flag::flags = flagTable; | |
196 size_t Flag::numFlags = (sizeof(flagTable) / sizeof(Flag)); | |
197 | |
198 inline bool str_equal(const char* s, char* q, size_t len) { | |
199 // s is null terminated, q is not! | |
200 if (strlen(s) != (unsigned int) len) return false; | |
201 return strncmp(s, q, len) == 0; | |
202 } | |
203 | |
204 Flag* Flag::find_flag(char* name, size_t length) { | |
205 for (Flag* current = &flagTable[0]; current->name; current++) { | |
206 if (str_equal(current->name, name, length)) { | |
207 if (!(current->is_unlocked() || current->is_unlocker())) { | |
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208 // disable use of diagnostic or experimental flags until they |
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209 // are explicitly unlocked |
0 | 210 return NULL; |
211 } | |
212 return current; | |
213 } | |
214 } | |
215 return NULL; | |
216 } | |
217 | |
218 // Returns the address of the index'th element | |
219 static Flag* address_of_flag(CommandLineFlagWithType flag) { | |
220 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); | |
221 return &Flag::flags[flag]; | |
222 } | |
223 | |
224 bool CommandLineFlagsEx::is_default(CommandLineFlag flag) { | |
225 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); | |
226 Flag* f = &Flag::flags[flag]; | |
227 return (f->origin == DEFAULT); | |
228 } | |
229 | |
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230 bool CommandLineFlagsEx::is_ergo(CommandLineFlag flag) { |
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231 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); |
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232 Flag* f = &Flag::flags[flag]; |
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233 return (f->origin == ERGONOMIC); |
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234 } |
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235 |
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236 bool CommandLineFlagsEx::is_cmdline(CommandLineFlag flag) { |
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237 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); |
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238 Flag* f = &Flag::flags[flag]; |
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239 return (f->origin == COMMAND_LINE); |
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240 } |
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241 |
0 | 242 bool CommandLineFlags::wasSetOnCmdline(const char* name, bool* value) { |
243 Flag* result = Flag::find_flag((char*)name, strlen(name)); | |
244 if (result == NULL) return false; | |
245 *value = (result->origin == COMMAND_LINE); | |
246 return true; | |
247 } | |
248 | |
249 bool CommandLineFlags::boolAt(char* name, size_t len, bool* value) { | |
250 Flag* result = Flag::find_flag(name, len); | |
251 if (result == NULL) return false; | |
252 if (!result->is_bool()) return false; | |
253 *value = result->get_bool(); | |
254 return true; | |
255 } | |
256 | |
257 bool CommandLineFlags::boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin) { | |
258 Flag* result = Flag::find_flag(name, len); | |
259 if (result == NULL) return false; | |
260 if (!result->is_bool()) return false; | |
261 bool old_value = result->get_bool(); | |
262 result->set_bool(*value); | |
263 *value = old_value; | |
264 result->origin = origin; | |
265 return true; | |
266 } | |
267 | |
268 void CommandLineFlagsEx::boolAtPut(CommandLineFlagWithType flag, bool value, FlagValueOrigin origin) { | |
269 Flag* faddr = address_of_flag(flag); | |
270 guarantee(faddr != NULL && faddr->is_bool(), "wrong flag type"); | |
271 faddr->set_bool(value); | |
272 faddr->origin = origin; | |
273 } | |
274 | |
275 bool CommandLineFlags::intxAt(char* name, size_t len, intx* value) { | |
276 Flag* result = Flag::find_flag(name, len); | |
277 if (result == NULL) return false; | |
278 if (!result->is_intx()) return false; | |
279 *value = result->get_intx(); | |
280 return true; | |
281 } | |
282 | |
283 bool CommandLineFlags::intxAtPut(char* name, size_t len, intx* value, FlagValueOrigin origin) { | |
284 Flag* result = Flag::find_flag(name, len); | |
285 if (result == NULL) return false; | |
286 if (!result->is_intx()) return false; | |
287 intx old_value = result->get_intx(); | |
288 result->set_intx(*value); | |
289 *value = old_value; | |
290 result->origin = origin; | |
291 return true; | |
292 } | |
293 | |
294 void CommandLineFlagsEx::intxAtPut(CommandLineFlagWithType flag, intx value, FlagValueOrigin origin) { | |
295 Flag* faddr = address_of_flag(flag); | |
296 guarantee(faddr != NULL && faddr->is_intx(), "wrong flag type"); | |
297 faddr->set_intx(value); | |
298 faddr->origin = origin; | |
299 } | |
300 | |
301 bool CommandLineFlags::uintxAt(char* name, size_t len, uintx* value) { | |
302 Flag* result = Flag::find_flag(name, len); | |
303 if (result == NULL) return false; | |
304 if (!result->is_uintx()) return false; | |
305 *value = result->get_uintx(); | |
306 return true; | |
307 } | |
308 | |
309 bool CommandLineFlags::uintxAtPut(char* name, size_t len, uintx* value, FlagValueOrigin origin) { | |
310 Flag* result = Flag::find_flag(name, len); | |
311 if (result == NULL) return false; | |
312 if (!result->is_uintx()) return false; | |
313 uintx old_value = result->get_uintx(); | |
314 result->set_uintx(*value); | |
315 *value = old_value; | |
316 result->origin = origin; | |
317 return true; | |
318 } | |
319 | |
320 void CommandLineFlagsEx::uintxAtPut(CommandLineFlagWithType flag, uintx value, FlagValueOrigin origin) { | |
321 Flag* faddr = address_of_flag(flag); | |
322 guarantee(faddr != NULL && faddr->is_uintx(), "wrong flag type"); | |
323 faddr->set_uintx(value); | |
324 faddr->origin = origin; | |
325 } | |
326 | |
327 bool CommandLineFlags::doubleAt(char* name, size_t len, double* value) { | |
328 Flag* result = Flag::find_flag(name, len); | |
329 if (result == NULL) return false; | |
330 if (!result->is_double()) return false; | |
331 *value = result->get_double(); | |
332 return true; | |
333 } | |
334 | |
335 bool CommandLineFlags::doubleAtPut(char* name, size_t len, double* value, FlagValueOrigin origin) { | |
336 Flag* result = Flag::find_flag(name, len); | |
337 if (result == NULL) return false; | |
338 if (!result->is_double()) return false; | |
339 double old_value = result->get_double(); | |
340 result->set_double(*value); | |
341 *value = old_value; | |
342 result->origin = origin; | |
343 return true; | |
344 } | |
345 | |
346 void CommandLineFlagsEx::doubleAtPut(CommandLineFlagWithType flag, double value, FlagValueOrigin origin) { | |
347 Flag* faddr = address_of_flag(flag); | |
348 guarantee(faddr != NULL && faddr->is_double(), "wrong flag type"); | |
349 faddr->set_double(value); | |
350 faddr->origin = origin; | |
351 } | |
352 | |
353 bool CommandLineFlags::ccstrAt(char* name, size_t len, ccstr* value) { | |
354 Flag* result = Flag::find_flag(name, len); | |
355 if (result == NULL) return false; | |
356 if (!result->is_ccstr()) return false; | |
357 *value = result->get_ccstr(); | |
358 return true; | |
359 } | |
360 | |
361 // Contract: Flag will make private copy of the incoming value. | |
362 // Outgoing value is always malloc-ed, and caller MUST call free. | |
363 bool CommandLineFlags::ccstrAtPut(char* name, size_t len, ccstr* value, FlagValueOrigin origin) { | |
364 Flag* result = Flag::find_flag(name, len); | |
365 if (result == NULL) return false; | |
366 if (!result->is_ccstr()) return false; | |
367 ccstr old_value = result->get_ccstr(); | |
370
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368 char* new_value = NULL; |
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369 if (*value != NULL) { |
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370 new_value = NEW_C_HEAP_ARRAY(char, strlen(*value)+1); |
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371 strcpy(new_value, *value); |
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372 } |
0 | 373 result->set_ccstr(new_value); |
374 if (result->origin == DEFAULT && old_value != NULL) { | |
375 // Prior value is NOT heap allocated, but was a literal constant. | |
376 char* old_value_to_free = NEW_C_HEAP_ARRAY(char, strlen(old_value)+1); | |
377 strcpy(old_value_to_free, old_value); | |
378 old_value = old_value_to_free; | |
379 } | |
380 *value = old_value; | |
381 result->origin = origin; | |
382 return true; | |
383 } | |
384 | |
385 // Contract: Flag will make private copy of the incoming value. | |
386 void CommandLineFlagsEx::ccstrAtPut(CommandLineFlagWithType flag, ccstr value, FlagValueOrigin origin) { | |
387 Flag* faddr = address_of_flag(flag); | |
388 guarantee(faddr != NULL && faddr->is_ccstr(), "wrong flag type"); | |
389 ccstr old_value = faddr->get_ccstr(); | |
390 char* new_value = NEW_C_HEAP_ARRAY(char, strlen(value)+1); | |
391 strcpy(new_value, value); | |
392 faddr->set_ccstr(new_value); | |
393 if (faddr->origin != DEFAULT && old_value != NULL) { | |
394 // Prior value is heap allocated so free it. | |
395 FREE_C_HEAP_ARRAY(char, old_value); | |
396 } | |
397 faddr->origin = origin; | |
398 } | |
399 | |
400 extern "C" { | |
401 static int compare_flags(const void* void_a, const void* void_b) { | |
402 return strcmp((*((Flag**) void_a))->name, (*((Flag**) void_b))->name); | |
403 } | |
404 } | |
405 | |
406 void CommandLineFlags::printSetFlags() { | |
407 // Print which flags were set on the command line | |
408 // note: this method is called before the thread structure is in place | |
409 // which means resource allocation cannot be used. | |
410 | |
411 // Compute size | |
412 int length= 0; | |
413 while (flagTable[length].name != NULL) length++; | |
414 | |
415 // Sort | |
416 Flag** array = NEW_C_HEAP_ARRAY(Flag*, length); | |
417 for (int index = 0; index < length; index++) { | |
418 array[index] = &flagTable[index]; | |
419 } | |
420 qsort(array, length, sizeof(Flag*), compare_flags); | |
421 | |
422 // Print | |
423 for (int i = 0; i < length; i++) { | |
424 if (array[i]->origin /* naked field! */) { | |
425 array[i]->print_as_flag(tty); | |
426 tty->print(" "); | |
427 } | |
428 } | |
429 tty->cr(); | |
430 FREE_C_HEAP_ARRAY(Flag*, array); | |
431 } | |
432 | |
433 #ifndef PRODUCT | |
434 | |
435 | |
436 void CommandLineFlags::verify() { | |
437 assert(Arguments::check_vm_args_consistency(), "Some flag settings conflict"); | |
438 } | |
439 | |
440 void CommandLineFlags::printFlags() { | |
441 // Print the flags sorted by name | |
442 // note: this method is called before the thread structure is in place | |
443 // which means resource allocation cannot be used. | |
444 | |
445 // Compute size | |
446 int length= 0; | |
447 while (flagTable[length].name != NULL) length++; | |
448 | |
449 // Sort | |
450 Flag** array = NEW_C_HEAP_ARRAY(Flag*, length); | |
451 for (int index = 0; index < length; index++) { | |
452 array[index] = &flagTable[index]; | |
453 } | |
454 qsort(array, length, sizeof(Flag*), compare_flags); | |
455 | |
456 // Print | |
457 tty->print_cr("[Global flags]"); | |
458 for (int i = 0; i < length; i++) { | |
459 if (array[i]->is_unlocked()) { | |
460 array[i]->print_on(tty); | |
461 } | |
462 } | |
463 FREE_C_HEAP_ARRAY(Flag*, array); | |
464 } | |
465 | |
466 #endif |