| /* |
| * Copyright (c) 2016, 2023, 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. |
| */ |
| |
| package requires; |
| |
| import java.io.BufferedInputStream; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.File; |
| import java.nio.charset.Charset; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.nio.file.StandardOpenOption; |
| import java.time.Instant; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Properties; |
| import java.util.Set; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.TimeUnit; |
| import java.util.function.Predicate; |
| import java.util.function.Supplier; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| import java.util.stream.Collectors; |
| import java.util.stream.Stream; |
| |
| import jdk.internal.foreign.CABI; |
| import jdk.test.whitebox.code.Compiler; |
| import jdk.test.whitebox.cpuinfo.CPUInfo; |
| import jdk.test.whitebox.gc.GC; |
| import jdk.test.whitebox.WhiteBox; |
| import jdk.test.lib.Platform; |
| import jdk.test.lib.Container; |
| |
| /** |
| * The Class to be invoked by jtreg prior Test Suite execution to |
| * collect information about VM. |
| * Do not use any APIs that may not be available in all target VMs. |
| * Properties set by this Class will be available in the @requires expressions. |
| */ |
| public class VMProps implements Callable<Map<String, String>> { |
| // value known to jtreg as an indicator of error state |
| private static final String ERROR_STATE = "__ERROR__"; |
| |
| private static final WhiteBox WB = WhiteBox.getWhiteBox(); |
| |
| private static class SafeMap { |
| private final Map<String, String> map = new HashMap<>(); |
| |
| public void put(String key, Supplier<String> s) { |
| String value; |
| try { |
| value = s.get(); |
| } catch (Throwable t) { |
| System.err.println("failed to get value for " + key); |
| t.printStackTrace(System.err); |
| value = ERROR_STATE + t; |
| } |
| map.put(key, value); |
| } |
| |
| public void putAll(Map<String, String> map) { |
| map.entrySet().forEach(e -> put(e.getKey(), () -> e.getValue())); |
| } |
| } |
| |
| /** |
| * Collects information about VM properties. |
| * This method will be invoked by jtreg. |
| * |
| * @return Map of property-value pairs. |
| */ |
| @Override |
| public Map<String, String> call() { |
| log("Entering call()"); |
| SafeMap map = new SafeMap(); |
| map.put("vm.flavor", this::vmFlavor); |
| map.put("vm.compMode", this::vmCompMode); |
| map.put("vm.bits", this::vmBits); |
| map.put("vm.flightRecorder", this::vmFlightRecorder); |
| map.put("vm.simpleArch", this::vmArch); |
| map.put("vm.debug", this::vmDebug); |
| map.put("vm.jvmci", this::vmJvmci); |
| map.put("vm.emulatedClient", this::vmEmulatedClient); |
| // vm.hasSA is "true" if the VM contains the serviceability agent |
| // and jhsdb. |
| map.put("vm.hasSA", this::vmHasSA); |
| // vm.hasJFR is "true" if JFR is included in the build of the VM and |
| // so tests can be executed. |
| map.put("vm.hasJFR", this::vmHasJFR); |
| map.put("vm.hasDTrace", this::vmHasDTrace); |
| map.put("vm.jvmti", this::vmHasJVMTI); |
| map.put("vm.cpu.features", this::cpuFeatures); |
| map.put("vm.pageSize", this::vmPageSize); |
| map.put("vm.rtm.cpu", this::vmRTMCPU); |
| map.put("vm.rtm.compiler", this::vmRTMCompiler); |
| // vm.cds is true if the VM is compiled with cds support. |
| map.put("vm.cds", this::vmCDS); |
| map.put("vm.cds.custom.loaders", this::vmCDSForCustomLoaders); |
| map.put("vm.cds.write.archived.java.heap", this::vmCDSCanWriteArchivedJavaHeap); |
| map.put("vm.continuations", this::vmContinuations); |
| // vm.graal.enabled is true if Graal is used as JIT |
| map.put("vm.graal.enabled", this::isGraalEnabled); |
| map.put("vm.compiler1.enabled", this::isCompiler1Enabled); |
| map.put("vm.compiler2.enabled", this::isCompiler2Enabled); |
| map.put("docker.support", this::dockerSupport); |
| map.put("vm.musl", this::isMusl); |
| map.put("release.implementor", this::implementor); |
| map.put("jdk.containerized", this::jdkContainerized); |
| map.put("vm.flagless", this::isFlagless); |
| map.put("jdk.foreign.linker", this::jdkForeignLinker); |
| map.putAll(xOptFlags()); // -Xmx4g -> @requires vm.opt.x.Xmx == "4g" ) |
| vmGC(map); // vm.gc.X = true/false |
| vmGCforCDS(map); // may set vm.gc |
| vmOptFinalFlags(map); |
| |
| dump(map.map); |
| log("Leaving call()"); |
| return map.map; |
| } |
| |
| /** |
| * Print a stack trace before returning error state; |
| * Used by the various helper functions which parse information from |
| * VM properties in the case where they don't find an expected property |
| * or a property doesn't conform to an expected format. |
| * |
| * @return {@link #ERROR_STATE} |
| */ |
| private String errorWithMessage(String message) { |
| new Exception(message).printStackTrace(); |
| return ERROR_STATE + message; |
| } |
| |
| /** |
| * @return vm.simpleArch value of "os.simpleArch" property of tested JDK. |
| */ |
| protected String vmArch() { |
| String arch = System.getProperty("os.arch"); |
| if (arch.equals("x86_64") || arch.equals("amd64")) { |
| return "x64"; |
| } else if (arch.contains("86")) { |
| return "x86"; |
| } else { |
| return arch; |
| } |
| } |
| |
| /** |
| * @return VM type value extracted from the "java.vm.name" property. |
| */ |
| protected String vmFlavor() { |
| // E.g. "Java HotSpot(TM) 64-Bit Server VM" |
| String vmName = System.getProperty("java.vm.name"); |
| if (vmName == null) { |
| return errorWithMessage("Can't get 'java.vm.name' property"); |
| } |
| |
| Pattern startP = Pattern.compile(".* (\\S+) VM"); |
| Matcher m = startP.matcher(vmName); |
| if (m.matches()) { |
| return m.group(1).toLowerCase(); |
| } |
| return errorWithMessage("Can't get VM flavor from 'java.vm.name'"); |
| } |
| |
| /** |
| * @return VM compilation mode extracted from the "java.vm.info" property. |
| */ |
| protected String vmCompMode() { |
| // E.g. "mixed mode" |
| String vmInfo = System.getProperty("java.vm.info"); |
| if (vmInfo == null) { |
| return errorWithMessage("Can't get 'java.vm.info' property"); |
| } |
| vmInfo = vmInfo.toLowerCase(); |
| if (vmInfo.contains("mixed mode")) { |
| return "Xmixed"; |
| } else if (vmInfo.contains("compiled mode")) { |
| return "Xcomp"; |
| } else if (vmInfo.contains("interpreted mode")) { |
| return "Xint"; |
| } else { |
| return errorWithMessage("Can't get compilation mode from 'java.vm.info'"); |
| } |
| } |
| |
| /** |
| * @return VM bitness, the value of the "sun.arch.data.model" property. |
| */ |
| protected String vmBits() { |
| String dataModel = System.getProperty("sun.arch.data.model"); |
| if (dataModel != null) { |
| return dataModel; |
| } else { |
| return errorWithMessage("Can't get 'sun.arch.data.model' property"); |
| } |
| } |
| |
| /** |
| * @return "true" if Flight Recorder is enabled, "false" if is disabled. |
| */ |
| protected String vmFlightRecorder() { |
| Boolean isFlightRecorder = WB.getBooleanVMFlag("FlightRecorder"); |
| String startFROptions = WB.getStringVMFlag("StartFlightRecording"); |
| if (isFlightRecorder != null && isFlightRecorder) { |
| return "true"; |
| } |
| if (startFROptions != null && !startFROptions.isEmpty()) { |
| return "true"; |
| } |
| return "false"; |
| } |
| |
| /** |
| * @return debug level value extracted from the "jdk.debug" property. |
| */ |
| protected String vmDebug() { |
| String debug = System.getProperty("jdk.debug"); |
| if (debug != null) { |
| return "" + debug.contains("debug"); |
| } else { |
| return errorWithMessage("Can't get 'jdk.debug' property"); |
| } |
| } |
| |
| /** |
| * @return true if VM supports JVMCI and false otherwise |
| */ |
| protected String vmJvmci() { |
| // builds with jvmci have this flag |
| if (WB.getBooleanVMFlag("EnableJVMCI") == null) { |
| return "false"; |
| } |
| |
| // Not all GCs have full JVMCI support |
| if (!WB.isJVMCISupportedByGC()) { |
| return "false"; |
| } |
| |
| // Interpreted mode cannot enable JVMCI |
| if (vmCompMode().equals("Xint")) { |
| return "false"; |
| } |
| |
| return "true"; |
| } |
| |
| /** |
| * @return true if VM runs in emulated-client mode and false otherwise. |
| */ |
| protected String vmEmulatedClient() { |
| String vmInfo = System.getProperty("java.vm.info"); |
| if (vmInfo == null) { |
| return errorWithMessage("Can't get 'java.vm.info' property"); |
| } |
| return "" + vmInfo.contains(" emulated-client"); |
| } |
| |
| /** |
| * @return supported CPU features |
| */ |
| protected String cpuFeatures() { |
| return CPUInfo.getFeatures().toString(); |
| } |
| |
| /** |
| * For all existing GC sets vm.gc.X property. |
| * Example vm.gc.G1=true means: |
| * VM supports G1 |
| * User either set G1 explicitely (-XX:+UseG1GC) or did not set any GC |
| * G1 can be selected, i.e. it doesn't conflict with other VM flags |
| * |
| * @param map - property-value pairs |
| */ |
| protected void vmGC(SafeMap map) { |
| var isJVMCIEnabled = Compiler.isJVMCIEnabled(); |
| Predicate<GC> vmGCProperty = (GC gc) -> (gc.isSupported() |
| && (!isJVMCIEnabled || gc.isSupportedByJVMCICompiler()) |
| && (gc.isSelected() || GC.isSelectedErgonomically())); |
| for (GC gc: GC.values()) { |
| map.put("vm.gc." + gc.name(), () -> "" + vmGCProperty.test(gc)); |
| } |
| |
| // Special handling for ZGC modes |
| var vmGCZ = vmGCProperty.test(GC.Z); |
| var genZ = WB.getBooleanVMFlag("ZGenerational"); |
| var genZIsDefault = WB.isDefaultVMFlag("ZGenerational"); |
| // vm.gc.ZGenerational=true means: |
| // vm.gc.Z is true and ZGenerational is either explicitly true, or default |
| map.put("vm.gc.ZGenerational", () -> "" + (vmGCZ && (genZ || genZIsDefault))); |
| // vm.gc.ZSinglegen=true means: |
| // vm.gc.Z is true and ZGenerational is either explicitly false, or default |
| map.put("vm.gc.ZSinglegen", () -> "" + (vmGCZ && (!genZ || genZIsDefault))); |
| } |
| |
| /** |
| * "jtreg -vmoptions:-Dtest.cds.runtime.options=..." can be used to specify |
| * the GC type to be used when running with a CDS archive. Set "vm.gc" accordingly, |
| * so that tests that need to explicitly choose the GC type can be excluded |
| * with "@requires vm.gc == null". |
| * |
| * @param map - property-value pairs |
| */ |
| protected void vmGCforCDS(SafeMap map) { |
| if (!GC.isSelectedErgonomically()) { |
| // The GC has been explicitly specified on the command line, so |
| // jtreg will set the "vm.gc" property. Let's not interfere with it. |
| return; |
| } |
| |
| String GC_PREFIX = "-XX:+Use"; |
| String GC_SUFFIX = "GC"; |
| String jtropts = System.getProperty("test.cds.runtime.options"); |
| if (jtropts != null) { |
| for (String opt : jtropts.split(",")) { |
| if (opt.startsWith(GC_PREFIX) && opt.endsWith(GC_SUFFIX)) { |
| String gc = opt.substring(GC_PREFIX.length(), opt.length() - GC_SUFFIX.length()); |
| map.put("vm.gc", () -> gc); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Selected final flag. |
| * |
| * @param map - property-value pairs |
| * @param flagName - flag name |
| */ |
| private void vmOptFinalFlag(SafeMap map, String flagName) { |
| map.put("vm.opt.final." + flagName, |
| () -> String.valueOf(WB.getBooleanVMFlag(flagName))); |
| } |
| |
| /** |
| * Selected sets of final flags. |
| * |
| * @param map - property-value pairs |
| */ |
| protected void vmOptFinalFlags(SafeMap map) { |
| vmOptFinalFlag(map, "ClassUnloading"); |
| vmOptFinalFlag(map, "ClassUnloadingWithConcurrentMark"); |
| vmOptFinalFlag(map, "CriticalJNINatives"); |
| vmOptFinalFlag(map, "EnableJVMCI"); |
| vmOptFinalFlag(map, "EliminateAllocations"); |
| vmOptFinalFlag(map, "UseCompressedOops"); |
| vmOptFinalFlag(map, "UseVectorizedMismatchIntrinsic"); |
| vmOptFinalFlag(map, "UseVtableBasedCHA"); |
| vmOptFinalFlag(map, "ZGenerational"); |
| } |
| |
| /** |
| * @return "true" if VM has a serviceability agent. |
| */ |
| protected String vmHasSA() { |
| return "" + Platform.hasSA(); |
| } |
| |
| /** |
| * @return "true" if the VM is compiled with Java Flight Recorder (JFR) |
| * support. |
| */ |
| protected String vmHasJFR() { |
| return "" + WB.isJFRIncluded(); |
| } |
| |
| /** |
| * @return "true" if the VM is compiled with JVMTI |
| */ |
| protected String vmHasJVMTI() { |
| return "" + WB.isJVMTIIncluded(); |
| } |
| |
| /** |
| * @return "true" if the VM is compiled with DTrace |
| */ |
| protected String vmHasDTrace() { |
| return "" + WB.isDTraceIncluded(); |
| } |
| |
| /** |
| * @return true if compiler in use supports RTM and false otherwise. |
| */ |
| protected String vmRTMCompiler() { |
| boolean isRTMCompiler = false; |
| |
| if (Compiler.isC2Enabled() && |
| (Platform.isX86() || Platform.isX64() || Platform.isPPC())) { |
| isRTMCompiler = true; |
| } |
| return "" + isRTMCompiler; |
| } |
| |
| /** |
| * @return true if VM runs RTM supported CPU and false otherwise. |
| */ |
| protected String vmRTMCPU() { |
| return "" + CPUInfo.hasFeature("rtm"); |
| } |
| |
| /** |
| * Check for CDS support. |
| * |
| * @return true if CDS is supported by the VM to be tested. |
| */ |
| protected String vmCDS() { |
| return "" + WB.isCDSIncluded(); |
| } |
| |
| /** |
| * Check for CDS support for custom loaders. |
| * |
| * @return true if CDS provides support for customer loader in the VM to be tested. |
| */ |
| protected String vmCDSForCustomLoaders() { |
| return "" + ("true".equals(vmCDS()) && Platform.areCustomLoadersSupportedForCDS()); |
| } |
| |
| /** |
| * @return true if this VM can write Java heap objects into the CDS archive |
| */ |
| protected String vmCDSCanWriteArchivedJavaHeap() { |
| return "" + ("true".equals(vmCDS()) && WB.canWriteJavaHeapArchive()); |
| } |
| |
| /** |
| * @return "true" if this VM supports continuations. |
| */ |
| protected String vmContinuations() { |
| if (WB.getBooleanVMFlag("VMContinuations")) { |
| return "true"; |
| } else { |
| return "false"; |
| } |
| } |
| |
| /** |
| * @return System page size in bytes. |
| */ |
| protected String vmPageSize() { |
| return "" + WB.getVMPageSize(); |
| } |
| |
| /** |
| * Check if Graal is used as JIT compiler. |
| * |
| * @return true if Graal is used as JIT compiler. |
| */ |
| protected String isGraalEnabled() { |
| return "" + Compiler.isGraalEnabled(); |
| } |
| |
| /** |
| * Check if Compiler1 is present. |
| * |
| * @return true if Compiler1 is used as JIT compiler, either alone or as part of the tiered system. |
| */ |
| protected String isCompiler1Enabled() { |
| return "" + Compiler.isC1Enabled(); |
| } |
| |
| /** |
| * Check if Compiler2 is present. |
| * |
| * @return true if Compiler2 is used as JIT compiler, either alone or as part of the tiered system. |
| */ |
| protected String isCompiler2Enabled() { |
| return "" + Compiler.isC2Enabled(); |
| } |
| |
| /** |
| * A simple check for docker support |
| * |
| * @return true if docker is supported in a given environment |
| */ |
| protected String dockerSupport() { |
| log("Entering dockerSupport()"); |
| |
| boolean isSupported = false; |
| if (Platform.isLinux()) { |
| // currently docker testing is only supported for Linux, |
| // on certain platforms |
| |
| String arch = System.getProperty("os.arch"); |
| |
| if (Platform.isX64()) { |
| isSupported = true; |
| } else if (Platform.isAArch64()) { |
| isSupported = true; |
| } else if (Platform.isS390x()) { |
| isSupported = true; |
| } else if (arch.equals("ppc64le")) { |
| isSupported = true; |
| } |
| } |
| |
| log("dockerSupport(): platform check: isSupported = " + isSupported); |
| |
| if (isSupported) { |
| try { |
| isSupported = checkDockerSupport(); |
| } catch (Exception e) { |
| isSupported = false; |
| } |
| } |
| |
| log("dockerSupport(): returning isSupported = " + isSupported); |
| return "" + isSupported; |
| } |
| |
| // Configures process builder to redirect process stdout and stderr to a file. |
| // Returns file names for stdout and stderr. |
| private Map<String, String> redirectOutputToLogFile(String msg, ProcessBuilder pb, String fileNameBase) { |
| Map<String, String> result = new HashMap<>(); |
| String timeStamp = Instant.now().toString().replace(":", "-").replace(".", "-"); |
| |
| String stdoutFileName = String.format("./%s-stdout--%s.log", fileNameBase, timeStamp); |
| pb.redirectOutput(new File(stdoutFileName)); |
| log(msg + ": child process stdout redirected to " + stdoutFileName); |
| result.put("stdout", stdoutFileName); |
| |
| String stderrFileName = String.format("./%s-stderr--%s.log", fileNameBase, timeStamp); |
| pb.redirectError(new File(stderrFileName)); |
| log(msg + ": child process stderr redirected to " + stderrFileName); |
| result.put("stderr", stderrFileName); |
| |
| return result; |
| } |
| |
| private void printLogfileContent(Map<String, String> logFileNames) { |
| logFileNames.entrySet().stream() |
| .forEach(entry -> |
| { |
| log("------------- " + entry.getKey()); |
| try { |
| Files.lines(Path.of(entry.getValue())) |
| .forEach(line -> log(line)); |
| } catch (IOException ie) { |
| log("Exception while reading file: " + ie); |
| } |
| log("-------------"); |
| }); |
| } |
| |
| private boolean checkDockerSupport() throws IOException, InterruptedException { |
| log("checkDockerSupport(): entering"); |
| ProcessBuilder pb = new ProcessBuilder("which", Container.ENGINE_COMMAND); |
| Map<String, String> logFileNames = |
| redirectOutputToLogFile("checkDockerSupport(): which <container-engine>", |
| pb, "which-container"); |
| Process p = pb.start(); |
| p.waitFor(10, TimeUnit.SECONDS); |
| int exitValue = p.exitValue(); |
| |
| log(String.format("checkDockerSupport(): exitValue = %s, pid = %s", exitValue, p.pid())); |
| if (exitValue != 0) { |
| printLogfileContent(logFileNames); |
| } |
| |
| return (exitValue == 0); |
| } |
| |
| /** |
| * Checks musl libc. |
| * |
| * @return true if musl libc is used. |
| */ |
| protected String isMusl() { |
| return Boolean.toString(WB.getLibcName().contains("musl")); |
| } |
| |
| private String implementor() { |
| try (InputStream in = new BufferedInputStream(new FileInputStream( |
| System.getProperty("java.home") + "/release"))) { |
| Properties properties = new Properties(); |
| properties.load(in); |
| String implementorProperty = properties.getProperty("IMPLEMENTOR"); |
| if (implementorProperty != null) { |
| return implementorProperty.replace("\"", ""); |
| } |
| return errorWithMessage("Can't get 'IMPLEMENTOR' property from 'release' file"); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| return errorWithMessage("Failed to read 'release' file " + e); |
| } |
| } |
| |
| private String jdkContainerized() { |
| String isEnabled = System.getenv("TEST_JDK_CONTAINERIZED"); |
| return "" + "true".equalsIgnoreCase(isEnabled); |
| } |
| |
| /** |
| * Checks if we are in <i>almost</i> out-of-box configuration, i.e. the flags |
| * which JVM is started with don't affect its behavior "significantly". |
| * {@code TEST_VM_FLAGLESS} enviroment variable can be used to force this |
| * method to return true or false and allow or reject any flags. |
| * |
| * @return true if there are no JVM flags |
| */ |
| private String isFlagless() { |
| boolean result = true; |
| String flagless = System.getenv("TEST_VM_FLAGLESS"); |
| if (flagless != null) { |
| return "" + "true".equalsIgnoreCase(flagless); |
| } |
| |
| List<String> allFlags = allFlags().toList(); |
| |
| // check -XX flags |
| var ignoredXXFlags = Set.of( |
| // added by run-test framework |
| "MaxRAMPercentage", |
| // added by test environment |
| "CreateCoredumpOnCrash" |
| ); |
| result &= allFlags.stream() |
| .filter(s -> s.startsWith("-XX:")) |
| // map to names: |
| // remove -XX: |
| .map(s -> s.substring(4)) |
| // remove +/- from bool flags |
| .map(s -> s.charAt(0) == '+' || s.charAt(0) == '-' ? s.substring(1) : s) |
| // remove =.* from others |
| .map(s -> s.contains("=") ? s.substring(0, s.indexOf('=')) : s) |
| // skip known-to-be-there flags |
| .filter(s -> !ignoredXXFlags.contains(s)) |
| .findAny() |
| .isEmpty(); |
| |
| // check -X flags |
| var ignoredXFlags = Set.of( |
| // default, yet still seen to be explicitly set |
| "mixed", |
| // -XmxmNNNm added by run-test framework for non-hotspot tests |
| "mx" |
| ); |
| result &= allFlags.stream() |
| .filter(s -> s.startsWith("-X") && !s.startsWith("-XX:")) |
| // map to names: |
| // remove -X |
| .map(s -> s.substring(2)) |
| // remove :.* from flags with values |
| .map(s -> s.contains(":") ? s.substring(0, s.indexOf(':')) : s) |
| // remove size like 4G, 768m which might be set for non-hotspot tests |
| .map(s -> s.replaceAll("(\\d+)[mMgGkK]", "")) |
| // skip known-to-be-there flags |
| .filter(s -> !ignoredXFlags.contains(s)) |
| .findAny() |
| .isEmpty(); |
| |
| return "" + result; |
| } |
| |
| private Stream<String> allFlags() { |
| return Stream.of((System.getProperty("test.vm.opts", "") + " " + System.getProperty("test.java.opts", "")).trim().split("\\s+")); |
| } |
| |
| /** |
| * Parses extra options, options that start with -X excluding the |
| * bare -X option (as it is not considered an extra option). |
| * Ignores extra options not starting with -X |
| * |
| * This could be improved to handle extra options not starting |
| * with -X as well as "standard" options. |
| */ |
| private Map<String, String> xOptFlags() { |
| return allFlags() |
| .filter(s -> s.startsWith("-X") && !s.startsWith("-XX:") && !s.equals("-X")) |
| .map(s -> s.replaceFirst("-", "")) |
| .map(flag -> flag.splitWithDelimiters("[:0123456789]", 2)) |
| .collect(Collectors.toMap(a -> "vm.opt.x." + a[0], |
| a -> (a.length == 1) |
| ? "true" // -Xnoclassgc |
| : (a[1].equals(":") |
| ? a[2] // ["-XshowSettings", ":", "system"] |
| : a[1] + a[2]))); // ["-Xmx", "4", "g"] |
| } |
| |
| /* |
| * A string indicating the foreign linker that is currently being used. See jdk.internal.foreign.CABI |
| * for valid values. |
| * |
| * "FALLBACK" and "UNSUPPORTED" are special values. The former indicates the fallback linker is |
| * being used. The latter indicates an unsupported platform. |
| */ |
| private String jdkForeignLinker() { |
| return String.valueOf(CABI.current()); |
| } |
| |
| /** |
| * Dumps the map to the file if the file name is given as the property. |
| * This functionality could be helpful to know context in the real |
| * execution. |
| * |
| * @param map |
| */ |
| protected static void dump(Map<String, String> map) { |
| String dumpFileName = System.getProperty("vmprops.dump"); |
| if (dumpFileName == null) { |
| return; |
| } |
| List<String> lines = new ArrayList<>(); |
| map.forEach((k, v) -> lines.add(k + ":" + v)); |
| try { |
| Files.write(Paths.get(dumpFileName), lines, |
| StandardOpenOption.APPEND, StandardOpenOption.CREATE); |
| } catch (IOException e) { |
| throw new RuntimeException("Failed to dump properties into '" |
| + dumpFileName + "'", e); |
| } |
| } |
| |
| /** |
| * Log diagnostic message. |
| * |
| * @param msg |
| */ |
| protected static void log(String msg) { |
| // Always log to a file. |
| logToFile(msg); |
| |
| // Also log to stderr; guarded by property to avoid excessive verbosity. |
| // By jtreg design stderr produced here will be visible |
| // in the output of a parent process. Note: stdout should not be used |
| // for logging as jtreg parses that output directly and only echoes it |
| // in the event of a failure. |
| if (Boolean.getBoolean("jtreg.log.vmprops")) { |
| System.err.println("VMProps: " + msg); |
| } |
| } |
| |
| /** |
| * Log diagnostic message to a file. |
| * |
| * @param msg |
| */ |
| protected static void logToFile(String msg) { |
| String fileName = "./vmprops.log"; |
| try { |
| Files.writeString(Paths.get(fileName), msg + "\n", Charset.forName("ISO-8859-1"), |
| StandardOpenOption.APPEND, StandardOpenOption.CREATE); |
| } catch (IOException e) { |
| throw new RuntimeException("Failed to log into '" + fileName + "'", e); |
| } |
| } |
| |
| /** |
| * This method is for the testing purpose only. |
| * |
| * @param args |
| */ |
| public static void main(String args[]) { |
| Map<String, String> map = new VMProps().call(); |
| map.forEach((k, v) -> System.out.println(k + ": '" + v + "'")); |
| } |
| } |
