sduv


Name: dkC59003 Date: 09/13/99



Kestrel HotSparc does not generate JVMDI_EVENT_THREAD_END event when debug thread ends
in the test below. Classic VM and HotSpot 1.3 on winNT are OK.
Logs and test sources follow:

$ java -version
java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-E)
Java(TM) HotSpot Client VM (build 1.3beta-E-release, 1.3beta-E-release, interpreted mode)

$ javac -g b4266590.java
$ cc -G -KPIC -I/export/ld25/java/dest/jdk1.3.0E/solaris/include
-I/export/ld25/java/dest/jdk1.3.0E/solaris/include/solaris -o libb4266590.so b4266590.c

$ java -Xdebug -Xnoagent -Xrunb4266590 b4266590
THREAD_START: 680556
$ java -classic -Xdebug -Xnoagent -Xrunb4266590 b4266590
THREAD_START: 1030812
THREAD_END: 1030812

------------------------------------------------------------- b4266590.java
import java.io.PrintStream;

public class b4266590 {

    public static void main(String[] args) {
System.exit(run(args, System.out) + 95/*STATUS_TEMP*/);
    }

    public static int run(String argv[], PrintStream ref) {
startDebThread(new Thread());
return 0;
    }

    native static void startDebThread(Thread thr);

    static {
try {
System.loadLibrary("b4266590");
} catch (UnsatisfiedLinkError ule) {
System.err.println("Could not load b4266590 library");
System.err.println("java.library.path:" + System.getProperty("java.library.path"));
throw ule;
}
    }
}
------------------------------------------------------------- b4266590.c
#include <stdio.h>
#include <string.h>
#include "jvmdi.h"

#ifdef __cplusplus
extern "C" {
#endif

#ifndef JNI_ENV_ARG

#ifdef __cplusplus
#define JNI_ENV_ARG(x, y) y
#define JNI_ENV_PTR(x) x
#else
#define JNI_ENV_ARG(x,y) x, y
#define JNI_ENV_PTR(x) (*x)
#endif

#endif

#define check(what) if ( err != JVMDI_ERROR_NONE) { printf("Failed to %s. err = %d\n", what, err); return; }

JavaVM *jvm;
JVMDI_Interface_1 *jvmdi;
int flag = 0;

void eventHook(JNIEnv *env, JVMDI_Event *event) {
jvmdiError err;

if (event->kind == JVMDI_EVENT_THREAD_START) {
printf("THREAD_START: %d\n", event->u.thread_change.thread);
flag = 1;
} else if (event->kind == JVMDI_EVENT_THREAD_END) {
printf("THREAD_END: %d\n", event->u.thread_change.thread);
err = jvmdi->SetEventNotificationMode(JVMDI_DISABLE, JVMDI_EVENT_THREAD_START, NULL);
check("Set Event Notification Mode JVMDI_DISABLE");
err = jvmdi->SetEventNotificationMode(JVMDI_DISABLE, JVMDI_EVENT_THREAD_END, NULL);
check("Set Event Notification Mode JVMDI_DISABLE");
}
}

JNIEXPORT jint JNICALL JVM_OnLoad(JavaVM *vm, char *options, void *reserved) {
jint res;
JNIEnv *env;
jvmdiError err, err1;

jvm=vm;

res = JNI_ENV_PTR(jvm)->GetEnv(JNI_ENV_ARG(jvm, (void **) &jvmdi), JVMDI_VERSION_1);
if ( res != JNI_OK || jvmdi == NULL ) {
printf("Wrong result of a valid call to GetEnv !\n");
return JNI_ERR;
}
err = jvmdi->SetEventNotificationMode(JVMDI_DISABLE, JVMDI_EVENT_THREAD_START, NULL);
err1 = jvmdi->SetEventNotificationMode(JVMDI_DISABLE, JVMDI_EVENT_THREAD_END, NULL);
if (err != JVMDI_ERROR_NONE || err1 != JVMDI_ERROR_NONE) {
printf("Failed to Set Event Notification Mode. err = %d\n", err);
return JNI_ERR;
}
err = jvmdi->SetEventHook(eventHook);
if ( err != JVMDI_ERROR_NONE) {
printf("Failed to Set Event Hook. err = %d\n", err);
return JNI_ERR;
}
return JNI_OK;
}

void debThreadProc(void *param) {
while (flag == 0) {
}
}

JNIEXPORT void JNICALL Java_b4266590_startDebThread(JNIEnv *env, jclass cls, jthread thr) {
jvmdiError err;
err = jvmdi->SetEventNotificationMode(JVMDI_ENABLE, JVMDI_EVENT_THREAD_START, NULL);
check("Set Event Notification Mode JVMDI_ENABLE");
err = jvmdi->SetEventNotificationMode(JVMDI_ENABLE, JVMDI_EVENT_THREAD_END, NULL);
check("Set Event Notification Mode JVMDI_ENABLE");
err = jvmdi->RunDebugThread(thr, debThreadProc, NULL, JVMDI_THREAD_MAX_PRIORITY);
check("Run Debug Thread");
}

#ifdef __cplusplus
}
#endif

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