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8268829: Provide an optimized way to walk the stack with Class object only

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8210375: StackWalker::getCallerClass throws UnsupportedOperationException

Reviewed-by: coleenp, dfuchs, bchristi
This commit is contained in:
Mandy Chung 2023-09-07 21:37:40 +00:00
parent 716201c77d
commit 111ecdbaf5
34 changed files with 982 additions and 622 deletions
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37
src/java.base/share/native/libjava/StackFrameInfo.c Normal file
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@ -0,0 +1,37 @@
/*
* Copyright (c) 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. 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.
*/
#include <stdio.h>
#include <signal.h>
#include "jni.h"
#include "jvm.h"
#include "java_lang_StackFrameInfo.h"
JNIEXPORT void JNICALL Java_java_lang_StackFrameInfo_expandStackFrameInfo
(JNIEnv *env, jobject obj) {
JVM_ExpandStackFrameInfo(env, obj);
}

12
src/java.base/share/native/libjava/StackStreamFactory.c
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, 2022, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 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
@ -44,7 +44,7 @@
JNIEXPORT jboolean JNICALL Java_java_lang_StackStreamFactory_checkStackWalkModes
(JNIEnv *env, jclass dummy)
{
return JVM_STACKWALK_FILL_CLASS_REFS_ONLY == java_lang_StackStreamFactory_FILL_CLASS_REFS_ONLY &&
return JVM_STACKWALK_CLASS_INFO_ONLY == java_lang_StackStreamFactory_CLASS_INFO_ONLY &&
JVM_STACKWALK_SHOW_HIDDEN_FRAMES == java_lang_StackStreamFactory_SHOW_HIDDEN_FRAMES &&
JVM_STACKWALK_FILL_LIVE_STACK_FRAMES == java_lang_StackStreamFactory_FILL_LIVE_STACK_FRAMES;
}
@ -52,10 +52,10 @@ JNIEXPORT jboolean JNICALL Java_java_lang_StackStreamFactory_checkStackWalkModes
/*
* Class: java_lang_StackStreamFactory_AbstractStackWalker
* Method: callStackWalk
* Signature: (JILjdk/internal/vm/ContinuationScope;Ljdk/internal/vm/Continuation;II[Ljava/lang/Object;)Ljava/lang/Object;
* Signature: (IILjdk/internal/vm/ContinuationScope;Ljdk/internal/vm/Continuation;II[Ljava/lang/Object;)Ljava/lang/Object;
*/
JNIEXPORT jobject JNICALL Java_java_lang_StackStreamFactory_00024AbstractStackWalker_callStackWalk
(JNIEnv *env, jobject stackstream, jlong mode, jint skipFrames, jobject contScope, jobject cont,
(JNIEnv *env, jobject stackstream, jint mode, jint skipFrames, jobject contScope, jobject cont,
jint batchSize, jint startIndex, jobjectArray frames)
{
return JVM_CallStackWalk(env, stackstream, mode, skipFrames, contScope, cont,
@ -65,10 +65,10 @@ JNIEXPORT jobject JNICALL Java_java_lang_StackStreamFactory_00024AbstractStackWa
/*
* Class: java_lang_StackStreamFactory_AbstractStackWalker
* Method: fetchStackFrames
* Signature: (JJII[Ljava/lang/Object;)I
* Signature: (IJII[Ljava/lang/Object;)I
*/
JNIEXPORT jint JNICALL Java_java_lang_StackStreamFactory_00024AbstractStackWalker_fetchStackFrames
(JNIEnv *env, jobject stackstream, jlong mode, jlong anchor,
(JNIEnv *env, jobject stackstream, jint mode, jlong anchor,
jint batchSize, jint startIndex,
jobjectArray frames)
{