6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "runtime/arguments.hpp"
27 #include "runtime/commandLineFlagConstraintsCompiler.hpp"
28 #include "runtime/commandLineFlagRangeList.hpp"
29 #include "runtime/globals.hpp"
30 #include "utilities/defaultStream.hpp"
31
32 Flag::Error AliasLevelConstraintFunc(intx value, bool verbose) {
33 if ((value <= 1) && (Arguments::mode() == Arguments::_comp)) {
34 CommandLineError::print(verbose,
35 "AliasLevel (" INTX_FORMAT ") is not "
36 "compatible with -Xcomp \n",
37 value);
38 return Flag::VIOLATES_CONSTRAINT;
39 } else {
40 return Flag::SUCCESS;
41 }
42 }
43
44 /**
45 * Validate the minimum number of compiler threads needed to run the
67 min_number_of_compiler_threads = 2; // case 4 (tiered)
68 }
69 #endif
70
71 // The default CICompilerCount's value is CI_COMPILER_COUNT.
72 // With a client VM, -XX:+TieredCompilation causes TieredCompilation
73 // to be true here (the option is validated later) and
74 // min_number_of_compiler_threads to exceed CI_COMPILER_COUNT.
75 min_number_of_compiler_threads = MIN2(min_number_of_compiler_threads, CI_COMPILER_COUNT);
76
77 if (value < (intx)min_number_of_compiler_threads) {
78 CommandLineError::print(verbose,
79 "CICompilerCount (" INTX_FORMAT ") must be "
80 "at least %d \n",
81 value, min_number_of_compiler_threads);
82 return Flag::VIOLATES_CONSTRAINT;
83 } else {
84 return Flag::SUCCESS;
85 }
86 }
|
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "oops/metadata.hpp"
27 #include "runtime/os.hpp"
28 #include "code/relocInfo.hpp"
29 #include "interpreter/invocationCounter.hpp"
30 #include "runtime/arguments.hpp"
31 #include "runtime/commandLineFlagConstraintsCompiler.hpp"
32 #include "runtime/commandLineFlagRangeList.hpp"
33 #include "runtime/globals.hpp"
34 #include "utilities/defaultStream.hpp"
35
36 Flag::Error AliasLevelConstraintFunc(intx value, bool verbose) {
37 if ((value <= 1) && (Arguments::mode() == Arguments::_comp)) {
38 CommandLineError::print(verbose,
39 "AliasLevel (" INTX_FORMAT ") is not "
40 "compatible with -Xcomp \n",
41 value);
42 return Flag::VIOLATES_CONSTRAINT;
43 } else {
44 return Flag::SUCCESS;
45 }
46 }
47
48 /**
49 * Validate the minimum number of compiler threads needed to run the
71 min_number_of_compiler_threads = 2; // case 4 (tiered)
72 }
73 #endif
74
75 // The default CICompilerCount's value is CI_COMPILER_COUNT.
76 // With a client VM, -XX:+TieredCompilation causes TieredCompilation
77 // to be true here (the option is validated later) and
78 // min_number_of_compiler_threads to exceed CI_COMPILER_COUNT.
79 min_number_of_compiler_threads = MIN2(min_number_of_compiler_threads, CI_COMPILER_COUNT);
80
81 if (value < (intx)min_number_of_compiler_threads) {
82 CommandLineError::print(verbose,
83 "CICompilerCount (" INTX_FORMAT ") must be "
84 "at least %d \n",
85 value, min_number_of_compiler_threads);
86 return Flag::VIOLATES_CONSTRAINT;
87 } else {
88 return Flag::SUCCESS;
89 }
90 }
91
92 Flag::Error AllocatePrefetchDistanceConstraintFunc(intx value, bool verbose) {
93 if (value < 0) {
94 CommandLineError::print(verbose,
95 "Unable to determine system-specific value for AllocatePrefetchDistance. "
96 "Please provide appropriate value, if unsure, use 0 to disable prefetching\n");
97 return Flag::VIOLATES_CONSTRAINT;
98 }
99
100 return Flag::SUCCESS;
101 }
102
103 Flag::Error AllocatePrefetchInstrConstraintFunc(intx value, bool verbose) {
104 intx max_value = max_intx;
105 #if defined(SPARC)
106 max_value = 1;
107 #elif defined(X86)
108 max_value = 3;
109 #endif
110 if (value < 0 || value > max_value) {
111 CommandLineError::print(verbose,
112 "AllocatePrefetchInstr (" INTX_FORMAT ") must be "
113 "between 0 and " INTX_FORMAT "\n", value, max_value);
114 return Flag::VIOLATES_CONSTRAINT;
115 }
116
117 return Flag::SUCCESS;
118 }
119
120 Flag::Error AllocatePrefetchStepSizeConstraintFunc(intx value, bool verbose) {
121 if (value < 0 || value > max_jint) {
122 CommandLineError::print(verbose,
123 "AllocatePrefetchStepSize (" INTX_FORMAT ") "
124 "must be between 0 and %d\n",
125 AllocatePrefetchStepSize,
126 max_jint);
127 return Flag::VIOLATES_CONSTRAINT;
128 }
129
130 if (AllocatePrefetchDistance % AllocatePrefetchStepSize != 0) {
131 CommandLineError::print(verbose,
132 "AllocatePrefetchDistance (" INTX_FORMAT ") "
133 "%% AllocatePrefetchStepSize (" INTX_FORMAT ") "
134 "= " INTX_FORMAT " "
135 "must be 0\n",
136 AllocatePrefetchDistance, AllocatePrefetchStepSize,
137 AllocatePrefetchDistance % AllocatePrefetchStepSize);
138 return Flag::VIOLATES_CONSTRAINT;
139 }
140
141 return Flag::SUCCESS;
142 }
143
144 Flag::Error CompileThresholdConstraintFunc(intx value, bool verbose) {
145 if (value < 0 || value > INT_MAX >> InvocationCounter::count_shift) {
146 CommandLineError::print(verbose,
147 "CompileThreshold (" INTX_FORMAT ") "
148 "must be between 0 and %d\n",
149 value,
150 INT_MAX >> InvocationCounter::count_shift);
151 return Flag::VIOLATES_CONSTRAINT;
152 }
153
154 return Flag::SUCCESS;
155 }
156
157 Flag::Error OnStackReplacePercentageConstraintFunc(intx value, bool verbose) {
158 int backward_branch_limit;
159 if (ProfileInterpreter) {
160 if (OnStackReplacePercentage < InterpreterProfilePercentage) {
161 CommandLineError::print(verbose,
162 "OnStackReplacePercentage (" INTX_FORMAT ") must be "
163 "larger than InterpreterProfilePercentage (" INTX_FORMAT ")\n",
164 OnStackReplacePercentage, InterpreterProfilePercentage);
165 return Flag::VIOLATES_CONSTRAINT;
166 }
167
168 backward_branch_limit = ((CompileThreshold * (OnStackReplacePercentage - InterpreterProfilePercentage)) / 100)
169 << InvocationCounter::count_shift;
170
171 if (backward_branch_limit < 0) {
172 CommandLineError::print(verbose,
173 "CompileThreshold * (InterpreterProfilePercentage - OnStackReplacePercentage) / 100 = "
174 INTX_FORMAT " "
175 "must be between 0 and " INTX_FORMAT ", try changing "
176 "CompileThreshold, InterpreterProfilePercentage, and/or OnStackReplacePercentage\n",
177 (CompileThreshold * (OnStackReplacePercentage - InterpreterProfilePercentage)) / 100,
178 INT_MAX >> InvocationCounter::count_shift);
179 return Flag::VIOLATES_CONSTRAINT;
180 }
181 } else {
182 if (OnStackReplacePercentage < 0 ) {
183 CommandLineError::print(verbose,
184 "OnStackReplacePercentage (" INTX_FORMAT ") must be "
185 "non-negative\n", OnStackReplacePercentage);
186 return Flag::VIOLATES_CONSTRAINT;
187 }
188
189 backward_branch_limit = ((CompileThreshold * OnStackReplacePercentage) / 100)
190 << InvocationCounter::count_shift;
191
192 if (backward_branch_limit < 0) {
193 CommandLineError::print(verbose,
194 "CompileThreshold * OnStackReplacePercentage / 100 = " INTX_FORMAT " "
195 "must be between 0 and " INTX_FORMAT ", try changing "
196 "CompileThreshold and/or OnStackReplacePercentage\n",
197 (CompileThreshold * OnStackReplacePercentage) / 100,
198 INT_MAX >> InvocationCounter::count_shift);
199 return Flag::VIOLATES_CONSTRAINT;
200 }
201 }
202 return Flag::SUCCESS;
203 }
204
205 Flag::Error CodeCacheSegmentSizeConstraintFunc(uintx value, bool verbose) {
206 if (CodeCacheSegmentSize < (uintx)CodeEntryAlignment) {
207 CommandLineError::print(verbose,
208 "CodeCacheSegmentSize (" UINTX_FORMAT ") must be "
209 "larger than or equal to CodeEntryAlignment (" INTX_FORMAT ")"
210 "to align entry points\n",
211 CodeCacheSegmentSize, CodeEntryAlignment);
212 return Flag::VIOLATES_CONSTRAINT;
213 }
214
215 if (CodeCacheSegmentSize < sizeof(jdouble)) {
216 CommandLineError::print(verbose,
217 "CodeCacheSegmentSize (" UINTX_FORMAT ") must be "
218 "at least " SIZE_FORMAT " to align constants\n",
219 CodeCacheSegmentSize, sizeof(jdouble));
220 return Flag::VIOLATES_CONSTRAINT;
221 }
222
223 #ifdef COMPILER2
224 if (CodeCacheSegmentSize < (uintx)OptoLoopAlignment) {
225 CommandLineError::print(verbose,
226 "CodeCacheSegmentSize (" UINTX_FORMAT ") must be "
227 "larger than or equal to OptoLoopAlignment (" INTX_FORMAT ")"
228 "to align inner loops\n",
229 CodeCacheSegmentSize, OptoLoopAlignment);
230 return Flag::VIOLATES_CONSTRAINT;
231 }
232 #endif
233
234 return Flag::SUCCESS;
235 }
236
237 Flag::Error CompilerThreadPriorityConstraintFunc(intx value, bool verbose) {
238 if (value < min_jint || value > max_jint) {
239 CommandLineError::print(verbose,
240 "CompileThreadPriority (" INTX_FORMAT ") "
241 "must be between %d and %d. "
242 "Please also make sure to specify values that are "
243 "meaningful to your operating system\n",
244 value, min_jint, max_jint);
245 return Flag::VIOLATES_CONSTRAINT;
246 }
247
248 return Flag::SUCCESS;
249 }
250
251 Flag::Error CodeEntryAlignmentConstraintFunc(intx value, bool verbose) {
252 #ifdef SPARC
253 if (CodeEntryAlignment % relocInfo::addr_unit() != 0) {
254 CommandLineError::print(verbose,
255 "CodeEntryAlignment (" INTX_FORMAT ") must be "
256 "multiple of NOP size\n", CodeEntryAlignment);
257 return Flag::VIOLATES_CONSTRAINT;
258 }
259 #endif
260
261 if (!is_power_of_2(value)) {
262 CommandLineError::print(verbose,
263 "CodeEntryAlignment (" INTX_FORMAT ") must be "
264 "a power of two\n", CodeEntryAlignment);
265 return Flag::VIOLATES_CONSTRAINT;
266 }
267
268 if (CodeEntryAlignment < 16) {
269 CommandLineError::print(verbose,
270 "CodeEntryAlignment (" INTX_FORMAT ") must be "
271 "greater than or equal to %d\n",
272 CodeEntryAlignment, 16);
273 return Flag::VIOLATES_CONSTRAINT;
274 }
275
276 return Flag::SUCCESS;
277 }
278
279 Flag::Error OptoLoopAlignmentConstraintFunc(intx value, bool verbose) {
280 if (value < 0 || value > 16) {
281 CommandLineError::print(verbose,
282 "OptoLoopAlignment (" INTX_FORMAT ") "
283 "must be between 0 and 16\n",
284 value);
285 return Flag::VIOLATES_CONSTRAINT;
286 }
287
288 if (!is_power_of_2(value)) {
289 CommandLineError::print(verbose,
290 "OptoLoopAlignment (" INTX_FORMAT ") "
291 "must be a power of two\n",
292 value);
293 return Flag::VIOLATES_CONSTRAINT;
294 }
295
296 #ifdef SPARC
297 if (OptoLoopAlignment % relocInfo::addr_unit() != 0) {
298 CommandLineError::print(verbose,
299 "OptoLoopAlignment (" INTX_FORMAT ") must be "
300 "multiple of NOP size\n");
301 return Flag::VIOLATES_CONSTRAINT;
302 }
303 #endif
304
305 return Flag::SUCCESS;
306 }
307
308 Flag::Error ArraycopyDstPrefetchDistanceConstraintFunc(uintx value, bool verbose) {
309 if (value != 0) {
310 CommandLineError::print(verbose,
311 "ArraycopyDstPrefetchDistance (" INTX_FORMAT ") must be 0\n");
312 return Flag::VIOLATES_CONSTRAINT;
313 }
314
315 return Flag::SUCCESS;
316 }
317
318 Flag::Error ArraycopySrcPrefetchDistanceConstraintFunc(uintx value, bool verbose) {
319 if (value != 0) {
320 CommandLineError::print(verbose,
321 "ArraycopySrcPrefetchDistance (" INTX_FORMAT ") must be 0\n");
322 return Flag::VIOLATES_CONSTRAINT;
323 }
324
325 return Flag::SUCCESS;
326 }
327
328 Flag::Error TypeProfileLevelConstraintFunc(uintx value, bool verbose) {
329 for (int i = 0; i < 3; i++) {
330 if (value % 10 > 2) {
331 CommandLineError::print(verbose,
332 "Invalid value (" UINTX_FORMAT ") "
333 "in TypeProfileLevel at position %d\n", value, i);
334 return Flag::VIOLATES_CONSTRAINT;
335 }
336 value = value / 10;
337 }
338
339 return Flag::SUCCESS;
340 }
341
342 #ifdef COMPILER2
343 Flag::Error InteriorEntryAlignmentConstraintFunc(intx value, bool verbose) {
344 if (InteriorEntryAlignment > CodeEntryAlignment) {
345 CommandLineError::print(verbose,
346 "InteriorEntryAlignment (" INTX_FORMAT ") must be "
347 "less than or equal to CodeEntryAlignment (" INTX_FORMAT ")\n",
348 InteriorEntryAlignment, CodeEntryAlignment);
349 return Flag::VIOLATES_CONSTRAINT;
350 }
351
352 #ifdef SPARC
353 if (InteriorEntryAlignment % relocInfo::addr_unit() != 0) {
354 CommandLineError::print(verbose,
355 "InteriorEntryAlignment (" INTX_FORMAT ") must be "
356 "multiple of NOP size\n");
357 return Flag::VIOLATES_CONSTRAINT;
358 }
359 #endif
360
361 if (!is_power_of_2(value)) {
362 CommandLineError::print(verbose,
363 "InteriorEntryAlignment (" INTX_FORMAT ") must be "
364 "a power of two\n", InteriorEntryAlignment);
365 return Flag::VIOLATES_CONSTRAINT;
366 }
367
368 int minimum_alignment = 16;
369 #if defined(SPARC) || (defined(X86) && !defined(AMD64))
370 minimum_alignment = 4;
371 #endif
372
373 if (InteriorEntryAlignment < minimum_alignment) {
374 CommandLineError::print(verbose,
375 "InteriorEntryAlignment (" INTX_FORMAT ") must be "
376 "greater than or equal to %d\n",
377 InteriorEntryAlignment, minimum_alignment);
378 return Flag::VIOLATES_CONSTRAINT;
379 }
380
381 return Flag::SUCCESS;
382 }
383
384 Flag::Error NodeLimitFudgeFactorConstraintFunc(intx value, bool verbose) {
385 if (value < MaxNodeLimit * 2 / 100 || value > MaxNodeLimit * 40 / 100) {
386 CommandLineError::print(verbose,
387 "NodeLimitFudgeFactor must be between 2%% and 40%% "
388 "of MaxNodeLimit (" INTX_FORMAT ")\n",
389 MaxNodeLimit);
390 return Flag::VIOLATES_CONSTRAINT;
391 }
392
393 return Flag::SUCCESS;
394 }
395 #endif // COMPILER2
|