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Replace setitimer with timer_create method. Implement isHidden entry …
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...le.svm.core.posix/src/com/oracle/svm/core/posix/darwin/DarwinSubstrateSigprofHandler.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| /* | ||
| * Copyright (c) 2024, 2024, 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. Oracle designates this | ||
| * particular file as subject to the "Classpath" exception as provided | ||
| * by Oracle in the LICENSE file that accompanied this code. | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
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| package com.oracle.svm.core.posix.darwin; | ||
|
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| import static com.oracle.svm.core.Uninterruptible.CALLED_FROM_UNINTERRUPTIBLE_CODE; | ||
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| import org.graalvm.nativeimage.IsolateThread; | ||
| import org.graalvm.nativeimage.Platform; | ||
| import org.graalvm.nativeimage.Platforms; | ||
| import org.graalvm.word.WordFactory; | ||
|
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| import com.oracle.svm.core.Uninterruptible; | ||
| import com.oracle.svm.core.graal.stackvalue.UnsafeStackValue; | ||
| import com.oracle.svm.core.posix.PosixSubstrateSigprofHandler; | ||
| import com.oracle.svm.core.posix.PosixUtils; | ||
| import com.oracle.svm.core.posix.headers.Time; | ||
| import com.oracle.svm.core.util.TimeUtils; | ||
|
|
||
| /** | ||
| * Darwin supports only global timer from POSIX (see {@link PosixSubstrateSigprofHandler}). | ||
| */ | ||
| public final class DarwinSubstrateSigprofHandler extends PosixSubstrateSigprofHandler { | ||
|
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| @Platforms(Platform.HOSTED_ONLY.class) | ||
| public DarwinSubstrateSigprofHandler() { | ||
| } | ||
|
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| @Override | ||
| protected void updateInterval() { | ||
| updateInterval(TimeUtils.millisToMicros(newIntervalMillis)); | ||
| } | ||
|
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| private static void updateInterval(long us) { | ||
| Time.itimerval newValue = UnsafeStackValue.get(Time.itimerval.class); | ||
| newValue.it_value().set_tv_sec(us / TimeUtils.microsPerSecond); | ||
| newValue.it_value().set_tv_usec(us % TimeUtils.microsPerSecond); | ||
| newValue.it_interval().set_tv_sec(us / TimeUtils.microsPerSecond); | ||
| newValue.it_interval().set_tv_usec(us % TimeUtils.microsPerSecond); | ||
|
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| int status = Time.NoTransitions.setitimer(Time.TimerTypeEnum.ITIMER_PROF, newValue, WordFactory.nullPointer()); | ||
| PosixUtils.checkStatusIs0(status, "setitimer(which, newValue, oldValue): wrong arguments."); | ||
| } | ||
|
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| @Override | ||
| protected void installSignalHandler() { | ||
| super.installSignalHandler(); | ||
| updateInterval(); | ||
| } | ||
|
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| @Override | ||
| protected void uninstallSignalHandler() { | ||
| /* Disable sampling. */ | ||
| updateInterval(0); | ||
| } | ||
|
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| @Override | ||
| @Uninterruptible(reason = CALLED_FROM_UNINTERRUPTIBLE_CODE, mayBeInlined = true) | ||
| protected void install0(IsolateThread thread) { | ||
| /* The timer is global, so nothing to do here. */ | ||
| } | ||
|
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| @Override | ||
| @Uninterruptible(reason = CALLED_FROM_UNINTERRUPTIBLE_CODE, mayBeInlined = true) | ||
| protected void uninstall0(IsolateThread thread) { | ||
| /* The timer is global, so nothing to do here. */ | ||
| } | ||
| } |
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