안드로이드 NDK 1.6으로 테스트 하고 있습니다.
hello-jni는 컴파일도 잘 되고 에뮬레이터에서도 잘 동작합니다.

libtwolib-second.so에 있는 소스 및 Application, Androd.mk 파일 가져다가 새로 생성한 프로젝트에 추가해서 컴파일 해보면 잘 됩니다.
libs/libtwolib-second.so도 잘 생성됩니다.
근데 에뮬에서 돌리면 natvie 매써드 콜하는데서 에러가 발생하네요.
에거 몇일째 구글링해도 잘 모르겠고..jni 관련해서 어떤 설정이 필요한건가요?
소스첨부합니다..조언좀 부탁드립니다.

02-08 07:04:30.982: DEBUG/dalvikvm(15015): Trying to load lib /data/data/gndk.com/lib/libtwolib-second.so 0x43b84518
02-08 07:04:30.992: DEBUG/dalvikvm(15015): Added shared lib /data/data/gndk.com/lib/libtwolib-second.so 0x43b84518
02-08 07:04:30.992: DEBUG/dalvikvm(15015): No JNI_OnLoad found in /data/data/gndk.com/lib/libtwolib-second.so 0x43b84518
02-08 07:04:32.002: DEBUG/dalvikvm(15015): +++ not scanning '/system/lib/libwebcore.so' for 'add' (wrong CL)
02-08 07:04:32.002: DEBUG/dalvikvm(15015): +++ not scanning '/system/lib/libmedia_jni.so' for 'add' (wrong CL)
02-08 07:04:32.002: DEBUG/dalvikvm(15015): +++ not scanning '/system/lib/libexif.so' for 'add' (wrong CL)
02-08 07:04:32.002: DEBUG/dalvikvm(15015): +++ not scanning '/system/lib/libsrec_jni.so' for 'add' (wrong CL)
02-08 07:04:32.002: WARN/dalvikvm(15015): No implementation found for native Lgndk/com/gndk;.add (II)I
02-08 07:04:32.002: DEBUG/AndroidRuntime(15015): Shutting down VM
02-08 07:04:32.002: WARN/dalvikvm(15015): threadid=3: thread exiting with uncaught exception (group=0x4001b188)
02-08 07:04:32.002: ERROR/AndroidRuntime(15015): Uncaught handler: thread main exiting due to uncaught exception
02-08 07:04:32.002: ERROR/AndroidRuntime(15015): java.lang.UnsatisfiedLinkError: add
02-08 07:04:32.002: ERROR/AndroidRuntime(15015):     at gndk.com.gndk.add(Native Method)
02-08 07:04:32.002: ERROR/AndroidRuntime(15015):     at gndk.com.gndk.onCreate(gndk.java:31)
02-08 07:04:32.002: ERROR/AndroidRuntime(15015):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
02-08 07:04:32.002: ERROR/AndroidRuntime(15015):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2444)
02-08 07:04:32.002: ERROR/AndroidRuntime(15015):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2497)
02-08 07:04:32.002: ERROR/AndroidRuntime(15015):     at android.app.ActivityThread.access$2200(ActivityThread.java:119)
02-08 07:04:32.002: ERROR/AndroidRuntime(15015):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1848)
02-08 07:04:32.002: ERROR/AndroidRuntime(15015):     at android.os.Handler.dispatchMessage(Handler.java:99)
02-08 07:04:32.002: ERROR/AndroidRuntime(15015):     at android.os.Looper.loop(Looper.java:123)
02-08 07:04:32.002: ERROR/AndroidRuntime(15015):     at android.app.ActivityThread.main(ActivityThread.java:4338)
02-08 07:04:32.002: ERROR/AndroidRuntime(15015):     at java.lang.reflect.Method.invokeNative(Native Method)