small repo with an eclipse JNI debugging. Each commit is a new step in the process
Using the latest commit, you can debug JNI in eclipse. Assuming everything is setup correctly, load project, open the jni.c file and set a break point on the switch statement and do: Project->debug as->android native application. If you have any issues, look at the gotchas/issues for commit 3 below.
commit 1: -- initial eclipse project with a button. doesn't do anything commit 2: -- added a jni, but currently it compiles by hand commit 3: -- eclipse integration -- gotchas/issues: - project->Android Tools->Add Native Support * NDK location not valid in preferences -- fix by 'Window->Preferences->Android->NDK', update location * creates jni/ -- already have a jni, so i merely deleted it
-- Properties->Buildiers-> NDK Builder (added by me)
- Add a 'New Program'
- name something useful -- NDK builder
- path to 'ndk-build' script
-- AndroidManifest.xml changes
- enable debug
- change Use SDK to match your phone
-- debug as Android Native Application, you get these errors:
[2013-11-21 09:48:12 - JniDebug] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=com.example.jnidebug/.MainActivity }
[2013-11-21 10:02:55 - JniDebug] Unknown Application ABI:
[2013-11-21 10:02:55 - JniDebug] Android
[2013-11-21 10:02:55 - JniDebug] Unknown Application ABI:
[2013-11-21 10:02:55 - JniDebug] NDK:
[2013-11-21 10:02:55 - JniDebug] Unknown Application ABI:
[2013-11-21 10:02:55 - JniDebug] WARNING:
[2013-11-21 10:02:55 - JniDebug] Unknown Application ABI:
[2013-11-21 10:02:55 - JniDebug] APP_PLATFORM
[2013-11-21 10:02:55 - JniDebug] Unknown Application ABI:
[2013-11-21 10:02:55 - JniDebug] android-18
[2013-11-21 10:02:55 - JniDebug] Unknown Application ABI:
[2013-11-21 10:02:55 - JniDebug] is
[2013-11-21 10:02:55 - JniDebug] Unknown Application ABI:
[2013-11-21 10:02:55 - JniDebug] larger
[2013-11-21 10:02:55 - JniDebug] Unknown Application ABI:
[2013-11-21 10:02:55 - JniDebug] than
[2013-11-21 10:02:55 - JniDebug] Unknown Application ABI:
[2013-11-21 10:02:55 - JniDebug] android:minSdkVersion
[2013-11-21 10:02:55 - JniDebug] Unknown Application ABI:
[2013-11-21 10:02:55 - JniDebug] 8
[2013-11-21 10:02:55 - JniDebug] Unknown Application ABI:
[2013-11-21 10:02:55 - JniDebug] in
[2013-11-21 10:02:55 - JniDebug] Unknown Application ABI:
[2013-11-21 10:02:55 - JniDebug] ./AndroidManifest.xml
[2013-11-21 10:02:55 - JniDebug] Unknown Application ABI:
[2013-11-21 10:02:55 - JniDebug]
[2013-11-21 10:02:55 - JniDebug] Unknown Application ABI:
[2013-11-21 10:02:55 - JniDebug]
[2013-11-21 10:02:55 - JniDebug] Unknown Application ABI:
[2013-11-21 10:02:55 - JniDebug]
[2013-11-21 10:02:55 - JniDebug] Unknown Application ABI:
[2013-11-21 10:02:55 - JniDebug]
armeabi
[2013-11-21 10:02:55 - JniDebug] Unable to detect application ABI's
==> make sure your manifest versions match your phone:
[jc@jc-u13:JniDebug]$ adb shell getprop|grep build.version
[ro.build.version.codename]: [REL]
[ro.build.version.incremental]: [eng.jc.20131105.131621]
[ro.build.version.release]: [4.3]
===>> [ro.build.version.sdk]: [18] <<===== you need your min SDK to be this
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