| /* |
| * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "oops/metadata.hpp" |
| #include "runtime/os.hpp" |
| #include "code/relocInfo.hpp" |
| #include "interpreter/invocationCounter.hpp" |
| #include "runtime/arguments.hpp" |
| #include "runtime/commandLineFlagConstraintsCompiler.hpp" |
| #include "runtime/commandLineFlagRangeList.hpp" |
| #include "runtime/globals.hpp" |
| #include "utilities/defaultStream.hpp" |
| |
| Flag::Error AliasLevelConstraintFunc(intx value, bool verbose) { |
| if ((value <= 1) && (Arguments::mode() == Arguments::_comp || Arguments::mode() == Arguments::_mixed)) { |
| CommandLineError::print(verbose, |
| "AliasLevel (" INTX_FORMAT ") is not " |
| "compatible with -Xcomp or -Xmixed\n", |
| value); |
| return Flag::VIOLATES_CONSTRAINT; |
| } else { |
| return Flag::SUCCESS; |
| } |
| } |
| |
| /** |
| * Validate the minimum number of compiler threads needed to run the |
| * JVM. The following configurations are possible. |
| * |
| * 1) The JVM is build using an interpreter only. As a result, the minimum number of |
| * compiler threads is 0. |
| * 2) The JVM is build using the compiler(s) and tiered compilation is disabled. As |
| * a result, either C1 or C2 is used, so the minimum number of compiler threads is 1. |
| * 3) The JVM is build using the compiler(s) and tiered compilation is enabled. However, |
| * the option "TieredStopAtLevel < CompLevel_full_optimization". As a result, only |
| * C1 can be used, so the minimum number of compiler threads is 1. |
| * 4) The JVM is build using the compilers and tiered compilation is enabled. The option |
| * 'TieredStopAtLevel = CompLevel_full_optimization' (the default value). As a result, |
| * the minimum number of compiler threads is 2. |
| */ |
| Flag::Error CICompilerCountConstraintFunc(intx value, bool verbose) { |
| int min_number_of_compiler_threads = 0; |
| #if !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK) && !INCLUDE_JVMCI |
| // case 1 |
| #else |
| if (!TieredCompilation || (TieredStopAtLevel < CompLevel_full_optimization)) { |
| min_number_of_compiler_threads = 1; // case 2 or case 3 |
| } else { |
| min_number_of_compiler_threads = 2; // case 4 (tiered) |
| } |
| #endif |
| |
| // The default CICompilerCount's value is CI_COMPILER_COUNT. |
| // With a client VM, -XX:+TieredCompilation causes TieredCompilation |
| // to be true here (the option is validated later) and |
| // min_number_of_compiler_threads to exceed CI_COMPILER_COUNT. |
| min_number_of_compiler_threads = MIN2(min_number_of_compiler_threads, CI_COMPILER_COUNT); |
| |
| if (value < (intx)min_number_of_compiler_threads) { |
| CommandLineError::print(verbose, |
| "CICompilerCount (" INTX_FORMAT ") must be " |
| "at least %d \n", |
| value, min_number_of_compiler_threads); |
| return Flag::VIOLATES_CONSTRAINT; |
| } else { |
| return Flag::SUCCESS; |
| } |
| } |
| |
| Flag::Error AllocatePrefetchDistanceConstraintFunc(intx value, bool verbose) { |
| if (value < 0 || value > 512) { |
| CommandLineError::print(verbose, |
| "AllocatePrefetchDistance (" INTX_FORMAT ") must be " |
| "between 0 and " INTX_FORMAT "\n", |
| AllocatePrefetchDistance, 512); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| |
| return Flag::SUCCESS; |
| } |
| |
| Flag::Error AllocatePrefetchStepSizeConstraintFunc(intx value, bool verbose) { |
| if (AllocatePrefetchStyle == 3) { |
| if (value % wordSize != 0) { |
| CommandLineError::print(verbose, |
| "AllocatePrefetchStepSize (" INTX_FORMAT ") must be multiple of %d\n", |
| value, wordSize); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| } |
| return Flag::SUCCESS; |
| } |
| |
| Flag::Error AllocatePrefetchInstrConstraintFunc(intx value, bool verbose) { |
| intx max_value = max_intx; |
| #if defined(SPARC) |
| max_value = 1; |
| #elif defined(X86) |
| max_value = 3; |
| #endif |
| if (value < 0 || value > max_value) { |
| CommandLineError::print(verbose, |
| "AllocatePrefetchInstr (" INTX_FORMAT ") must be " |
| "between 0 and " INTX_FORMAT "\n", value, max_value); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| |
| return Flag::SUCCESS; |
| } |
| |
| Flag::Error CompileThresholdConstraintFunc(intx value, bool verbose) { |
| if (value < 0 || value > INT_MAX >> InvocationCounter::count_shift) { |
| CommandLineError::print(verbose, |
| "CompileThreshold (" INTX_FORMAT ") " |
| "must be between 0 and %d\n", |
| value, |
| INT_MAX >> InvocationCounter::count_shift); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| |
| return Flag::SUCCESS; |
| } |
| |
| Flag::Error OnStackReplacePercentageConstraintFunc(intx value, bool verbose) { |
| int backward_branch_limit; |
| if (ProfileInterpreter) { |
| if (OnStackReplacePercentage < InterpreterProfilePercentage) { |
| CommandLineError::print(verbose, |
| "OnStackReplacePercentage (" INTX_FORMAT ") must be " |
| "larger than InterpreterProfilePercentage (" INTX_FORMAT ")\n", |
| OnStackReplacePercentage, InterpreterProfilePercentage); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| |
| backward_branch_limit = ((CompileThreshold * (OnStackReplacePercentage - InterpreterProfilePercentage)) / 100) |
| << InvocationCounter::count_shift; |
| |
| if (backward_branch_limit < 0) { |
| CommandLineError::print(verbose, |
| "CompileThreshold * (InterpreterProfilePercentage - OnStackReplacePercentage) / 100 = " |
| INTX_FORMAT " " |
| "must be between 0 and " INTX_FORMAT ", try changing " |
| "CompileThreshold, InterpreterProfilePercentage, and/or OnStackReplacePercentage\n", |
| (CompileThreshold * (OnStackReplacePercentage - InterpreterProfilePercentage)) / 100, |
| INT_MAX >> InvocationCounter::count_shift); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| } else { |
| if (OnStackReplacePercentage < 0 ) { |
| CommandLineError::print(verbose, |
| "OnStackReplacePercentage (" INTX_FORMAT ") must be " |
| "non-negative\n", OnStackReplacePercentage); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| |
| backward_branch_limit = ((CompileThreshold * OnStackReplacePercentage) / 100) |
| << InvocationCounter::count_shift; |
| |
| if (backward_branch_limit < 0) { |
| CommandLineError::print(verbose, |
| "CompileThreshold * OnStackReplacePercentage / 100 = " INTX_FORMAT " " |
| "must be between 0 and " INTX_FORMAT ", try changing " |
| "CompileThreshold and/or OnStackReplacePercentage\n", |
| (CompileThreshold * OnStackReplacePercentage) / 100, |
| INT_MAX >> InvocationCounter::count_shift); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| } |
| return Flag::SUCCESS; |
| } |
| |
| Flag::Error CodeCacheSegmentSizeConstraintFunc(uintx value, bool verbose) { |
| if (CodeCacheSegmentSize < (uintx)CodeEntryAlignment) { |
| CommandLineError::print(verbose, |
| "CodeCacheSegmentSize (" UINTX_FORMAT ") must be " |
| "larger than or equal to CodeEntryAlignment (" INTX_FORMAT ") " |
| "to align entry points\n", |
| CodeCacheSegmentSize, CodeEntryAlignment); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| |
| if (CodeCacheSegmentSize < sizeof(jdouble)) { |
| CommandLineError::print(verbose, |
| "CodeCacheSegmentSize (" UINTX_FORMAT ") must be " |
| "at least " SIZE_FORMAT " to align constants\n", |
| CodeCacheSegmentSize, sizeof(jdouble)); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| |
| #ifdef COMPILER2 |
| if (CodeCacheSegmentSize < (uintx)OptoLoopAlignment) { |
| CommandLineError::print(verbose, |
| "CodeCacheSegmentSize (" UINTX_FORMAT ") must be " |
| "larger than or equal to OptoLoopAlignment (" INTX_FORMAT ") " |
| "to align inner loops\n", |
| CodeCacheSegmentSize, OptoLoopAlignment); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| #endif |
| |
| return Flag::SUCCESS; |
| } |
| |
| Flag::Error CompilerThreadPriorityConstraintFunc(intx value, bool verbose) { |
| #ifdef SOLARIS |
| if ((value < MinimumPriority || value > MaximumPriority) && |
| (value != -1) && (value != -FXCriticalPriority)) { |
| CommandLineError::print(verbose, |
| "CompileThreadPriority (" INTX_FORMAT ") must be " |
| "between %d and %d inclusively or -1 (means no change) " |
| "or %d (special value for critical thread class/priority)\n", |
| value, MinimumPriority, MaximumPriority, -FXCriticalPriority); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| #endif |
| |
| return Flag::SUCCESS; |
| } |
| |
| Flag::Error CodeEntryAlignmentConstraintFunc(intx value, bool verbose) { |
| #ifdef SPARC |
| if (CodeEntryAlignment % relocInfo::addr_unit() != 0) { |
| CommandLineError::print(verbose, |
| "CodeEntryAlignment (" INTX_FORMAT ") must be " |
| "multiple of NOP size\n", CodeEntryAlignment); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| #endif |
| |
| if (!is_power_of_2(value)) { |
| CommandLineError::print(verbose, |
| "CodeEntryAlignment (" INTX_FORMAT ") must be " |
| "a power of two\n", CodeEntryAlignment); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| |
| if (CodeEntryAlignment < 16) { |
| CommandLineError::print(verbose, |
| "CodeEntryAlignment (" INTX_FORMAT ") must be " |
| "greater than or equal to %d\n", |
| CodeEntryAlignment, 16); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| |
| return Flag::SUCCESS; |
| } |
| |
| Flag::Error OptoLoopAlignmentConstraintFunc(intx value, bool verbose) { |
| if (!is_power_of_2(value)) { |
| CommandLineError::print(verbose, |
| "OptoLoopAlignment (" INTX_FORMAT ") " |
| "must be a power of two\n", |
| value); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| |
| // Relevant on ppc, s390, sparc. Will be optimized where |
| // addr_unit() == 1. |
| if (OptoLoopAlignment % relocInfo::addr_unit() != 0) { |
| CommandLineError::print(verbose, |
| "OptoLoopAlignment (" INTX_FORMAT ") must be " |
| "multiple of NOP size (%d)\n", |
| value, relocInfo::addr_unit()); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| |
| return Flag::SUCCESS; |
| } |
| |
| Flag::Error ArraycopyDstPrefetchDistanceConstraintFunc(uintx value, bool verbose) { |
| if (value >= 4032) { |
| CommandLineError::print(verbose, |
| "ArraycopyDstPrefetchDistance (" UINTX_FORMAT ") must be" |
| "between 0 and 4031\n", value); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| |
| return Flag::SUCCESS; |
| } |
| |
| Flag::Error ArraycopySrcPrefetchDistanceConstraintFunc(uintx value, bool verbose) { |
| if (value >= 4032) { |
| CommandLineError::print(verbose, |
| "ArraycopySrcPrefetchDistance (" UINTX_FORMAT ") must be" |
| "between 0 and 4031\n", value); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| |
| return Flag::SUCCESS; |
| } |
| |
| Flag::Error TypeProfileLevelConstraintFunc(uintx value, bool verbose) { |
| for (int i = 0; i < 3; i++) { |
| if (value % 10 > 2) { |
| CommandLineError::print(verbose, |
| "Invalid value (" UINTX_FORMAT ") " |
| "in TypeProfileLevel at position %d\n", value, i); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| value = value / 10; |
| } |
| |
| return Flag::SUCCESS; |
| } |
| |
| Flag::Error InitArrayShortSizeConstraintFunc(intx value, bool verbose) { |
| if (value % BytesPerLong != 0) { |
| return Flag::VIOLATES_CONSTRAINT; |
| } else { |
| return Flag::SUCCESS; |
| } |
| } |
| |
| #ifdef COMPILER2 |
| Flag::Error InteriorEntryAlignmentConstraintFunc(intx value, bool verbose) { |
| if (InteriorEntryAlignment > CodeEntryAlignment) { |
| CommandLineError::print(verbose, |
| "InteriorEntryAlignment (" INTX_FORMAT ") must be " |
| "less than or equal to CodeEntryAlignment (" INTX_FORMAT ")\n", |
| InteriorEntryAlignment, CodeEntryAlignment); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| |
| #ifdef SPARC |
| if (InteriorEntryAlignment % relocInfo::addr_unit() != 0) { |
| CommandLineError::print(verbose, |
| "InteriorEntryAlignment (" INTX_FORMAT ") must be " |
| "multiple of NOP size\n"); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| #endif |
| |
| if (!is_power_of_2(value)) { |
| CommandLineError::print(verbose, |
| "InteriorEntryAlignment (" INTX_FORMAT ") must be " |
| "a power of two\n", InteriorEntryAlignment); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| |
| int minimum_alignment = 16; |
| #if defined(SPARC) || (defined(X86) && !defined(AMD64)) |
| minimum_alignment = 4; |
| #elif defined(S390) |
| minimum_alignment = 2; |
| #endif |
| |
| if (InteriorEntryAlignment < minimum_alignment) { |
| CommandLineError::print(verbose, |
| "InteriorEntryAlignment (" INTX_FORMAT ") must be " |
| "greater than or equal to %d\n", |
| InteriorEntryAlignment, minimum_alignment); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| |
| return Flag::SUCCESS; |
| } |
| |
| Flag::Error NodeLimitFudgeFactorConstraintFunc(intx value, bool verbose) { |
| if (value < MaxNodeLimit * 2 / 100 || value > MaxNodeLimit * 40 / 100) { |
| CommandLineError::print(verbose, |
| "NodeLimitFudgeFactor must be between 2%% and 40%% " |
| "of MaxNodeLimit (" INTX_FORMAT ")\n", |
| MaxNodeLimit); |
| return Flag::VIOLATES_CONSTRAINT; |
| } |
| |
| return Flag::SUCCESS; |
| } |
| #endif // COMPILER2 |
