Name: dkC59003 Date: 04/28/99


The tests nsk/coverage/jni/jni001 and jni002 crashes HotSpot for sparc
1.0fcs-B build:

$ runc.ksh
cc: SC4.0 18 Oct 1995 C 4.0
usage: cc [ options] files. Use 'cc -flags' for details
#
# HotSpot Virtual Machine Error, Unexpected Signal 11
#
signal fault in critical section
signal number: 11, signal code: 1, fault address: 0x4, pc: 0xef4436b0, sp: 0xff0f8
ABORT: core dump

The same thing works fine on winNT with VC++ 5.0 and fcs-E build.
Script to run the test and slightly simplified version of the test follow:

----------------------------------------------------------- runc.ksh
#!/bin/ksh
HS=/export/home/hotspot/jdk1.2

export CLASSPATH=.
export LD_LIBRARY_PATH=$HS/jre/lib/sparc/hotspot

cc -V
cc -KPIC -I$HS/include -I$HS/include/solaris -L$HS/jre/lib/sparc/classic -L$HS/jre/lib/sparc/native_threads -ljvm -lthread -o jni001.exe jni001.c

if [ $? = 0 ]; then
    jni001.exe
    echo $?
fi
----------------------------------------------------------- jni001.c
#include <thread.h>
#include <string.h>
#include "jni.h"

thread_t tid[1];
jint attachRes;
jint detachRes;
jint threadStatus;
JavaVM *vm;

void* trialThread( void *arg ) {
    jint res;
    jclass cls;
    jmethodID mid;
    jobject exc;
    JNIEnv *env;

    threadStatus = 0;
    env = (void *) 0xfafa;

    res = (*vm) -> GetEnv(vm, (void **) &env, JNI_VERSION_1_2);
    if ( res != JNI_EDETACHED || env != NULL ) {
        threadStatus = 2;
        fprintf(stderr, "Error: wrong result of GetEnv when the current thread is "
                        "not attached to the VM.\n");
    }

    attachRes = (*vm) -> AttachCurrentThread( vm, (void **) &env, (void *) 0 );
    if ( attachRes != 0 )
        fprintf(stderr, "Error: attach status = %d\n", attachRes );
    
    detachRes = (*vm) -> DetachCurrentThread( vm );
    if ( detachRes != 0 )
        fprintf(stderr, "Error: detach status = %d\n", detachRes );
    return NULL;
}

int fail( char* msg ) {
    printf( "Error: %s", msg );
    return 2; /*STATUS_FAILED*/
}

main ( int argc, char *argv[] ) {
    JavaVMInitArgs vm_args;
    JavaVMOption options[3];
    jint res;
    JNIEnv *env;
    jclass cls;
    jmethodID mid;
    jobject exc;
    char *cpoptionName;
    char *cpoption;
    const char *classpath;

    classpath = (char*) getenv( "CLASSPATH" );
    if( classpath == NULL )
        return fail("environment variable CLASSPATH is not set.\n");

    vm_args.version = JNI_VERSION_1_2;
    cpoptionName = "-Djava.class.path="; /* user classes option */
    cpoption = (char*) malloc((size_t) strlen(cpoptionName) + strlen(classpath) + 1);
    if ( cpoption == NULL )
        return fail("could not malloc array for classpath option.\n");
    cpoption = strcat(cpoption, cpoptionName);
    cpoption = strcat(cpoption, classpath);
    options[0].optionString = cpoption;
    vm_args.nOptions = 1;
    vm_args.options = options;
    vm_args.ignoreUnrecognized = JNI_TRUE;

    res = JNI_CreateJavaVM( &vm, (void **) &env, &vm_args );
    if ( res != 0 )
        return fail("could not create Java VM. Maybe the reason is "
                    "CLASSPATH doesn't point to java.lang.Thread class.\n");

    res = thr_create( NULL, 0, trialThread, (void *) 0, 0, tid );
    if ( res != 0 )
        return fail("could not create Solaris thread.\n");
    sleep(5);

    res = (*vm) -> AttachCurrentThread( vm, (void **) &env, (void *) 0 );
    if ( res != 0 )
        return fail( "Attach status was not 0.\n" );
    
    res = (*vm) -> DetachCurrentThread( vm );
    if ( res != 0 )
        return fail( "Detach status was not 0.\n" );

    if ((attachRes != 0) || (threadStatus != 0) || (detachRes != 0))
        return fail("Invalid test result.\n");

    free(cpoption);
    return 0 /*STATUS_PASSED*/;
}

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