application exits after run.
i guss the problem lie in "System.loadLibrary(...)"
source code is as the following
/////////////////////////////////////////////////////////////////////////////
TestJNI.java
package com.test.hello;
/**
* @author stavy
*
*/
public class TestJNI {
static {
//System.out.println(System.getProperty("java.library.path"));
try {
System.loadLibrary("testjni");
} catch (Exception e) {
System.out.println("libtestjni.so load errer");
}
}
public int test( ) {
testjni();
return 0;
}
private native int testjni();
}
/////////////////////////////////////////////////////////////////////////////
HelloAndriod.java
package com.test.hello;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class HelloAndroid extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
//setContentView(R.layout.main);
TextView tv = new TextView(this);
tv.setText("hello android!");
setContentView(tv);
TestJNI testjni = new TestJNI();
testjni.test();
}
}
/////////////////////////////////////////////////////////////////////////////
com_test_hello_TestJNI.h
/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class com_test_hello_TestJNI */
#ifndef _Included_com_test_hello_TestJNI
#define _Included_com_test_hello_TestJNI
#ifdef __cplusplus
extern "C" {
#endif
/*
* Class: com_test_hello_TestJNI
* Method: testjni
* Signature: ()I
*/
JNIEXPORT jint JNICALL Java_com_test_hello_TestJNI_testjni
(JNIEnv *, jobject);
#ifdef __cplusplus
}
#endif
#endif
/////////////////////////////////////////////////////////////////////////////
testjni.c
#include "com_test_hello_TestJNI.h"
#include <stdio.h>
JNIEXPORT jint JNICALL Java_com_test_hello_TestJNI_testjni(JNIEnv
*jenv, jobject jobj)
{
printf("hello testjni!\n");
return 0;
}
/////////////////////////////////////////////////////////////////////////////
Makefile
INCPATH:= -I. -I/usr/local/jdk1.6.0_05/include -I/usr/local/
jdk1.6.0_05/include/linux
CC := /usr/local/arm-2007q3/bin/arm-none-linux-gnueabi-gcc
LN := /usr/local/arm-2007q3/bin/arm-none-linux-gnueabi-ld
LIBA := /usr/local/arm-2007q3/lib/gcc/arm-none-linux-gnueabi/4.2.1/
libgcc.a
TARGET := libtestjni.so
all: objdir $(TARGET)
obj/testjni.o : testjni.c
$(CC) $(INCPATH) -fpic -c $< -o $@
obj/testjni.so.tmp : obj/testjni.o
$(LN) -r -static -o $@ $< $(LIBA)
$(TARGET) : obj/testjni.so.tmp
$(LN) -shared -Tarmelf_linux_eabi.xsc -o $@ $<
objdir:
mkdir -p obj
clean:
rm -f err $(TARGET) obj/*
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