![]() Stack frame #10 pc 0003dc14 /system/lib/libdvm.so (dvmInterpret(Thread*, Method const*, JValue*)+212) Stack frame #09 pc 000402a6 /system/lib/libdvm.so (dvmMterpStd(Thread*)+70) Stack frame #08 pc 00170ff1 /system/lib/libdvm.so Stack frame #07 pc 0008b96d /system/lib/libdvm.so (dvmResolveNativeMethod(unsigned int const*, JValue*, Method const*, Thread*)+317) Stack frame #06 pc 000505db /system/lib/libdvm.so (dvmCheckCallJNIMethod(unsigned int const*, JValue*, Method const*, Thread*)+59) Stack frame #05 pc 00085b48 /system/lib/libdvm.so (dvmCallJNIMethod(unsigned int const*, JValue*, Method const*, Thread*)+648) ![]() Stack frame #04 pc 0002d850 /system/lib/libdvm.so (dvmPlatformInvoke+80) Stack frame #03 pc 00003a93 /system/lib/libmytestt.so (Java_com_test_jni_MyLibWrapper_getMonitorSample+259) Stack frame #02 pc 0005db56 /system/lib/libdvm.so (Check_SetBooleanField(_JNIEnv*, _jobject*, _jfieldID*, unsigned char)+150) Stack frame #01 pc 00050f6b /system/lib/libdvm.so (ScopedCheck::checkInstanceFieldID(_jobject*, _jfieldID*)+379) ![]() Stack frame #00 pc 00072c9a /system/lib/libdvm.so (dvmAbort+170) Signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr deadd00d ndk-stack -sym ~/myrelease/symbols -dump ~/win/bytesthink/Documents/test/perform_releases/tombstone_01 considering I pull a tombstone file from my. ![]() Very simple right ? Let’s run an example. See docs/NDK-STACK.html in your NDK installation tree for more details. dump Contains full path to the file containing the crash dump. sym Contains full path to the root directory for symbols. If you install everything, you should be able to run the tool ndk-stack : bashrc :Įxport ANDROID_NDK_PATH=/home/bytesthink/tools/android-ndk-r8d/ If you are using linux here goes an example that you need to include in your. I recommend you include your NDK directory in your path. Please download the package from this link and install on your computer. If you do not have the android ndk package you need to install in order to have access to the tool chains. The intention of this post is to introduce two tools that comes with android NDK that really helps: ndk-stack and addr2lineġ) Install the NDK (if you do not have yet) how to debug the stack in tombstones files!īut sometimes looking to raw tombstones it is a little difficult to realize where and what the problem really is. Check the /data on your device and you will observe the 7 sessions mentioned above. The tombstones are located at /data/tombstones as isolated files (one files represents one crash) or you can see them in your logcat Take a look in the adb # find. Working with Android, every time a process that runs on native side crashes, we have some small pieces of your stack in files called tombstones. at this point the program/project managers team are “talking” in your ears… “fix it!”. Some cases the users even see the crash visually but the system contains the logs blocking the approval of your software that must be completed to some costumer. If you have the device and an easy way to reproduce the issue, it is OK but suppose you need to collect logs from remote users and the scenario is very difficult to reproduce. However, bugs in native side sometimes takes time and usually it is not an easy and fast task. If your software requires performance using graphic API like in OpenGL or if you need to access some specific information provided by some native library, the NDK fits for you. If you work with android and your are a real engineer, it is very difficult to resist the native support using Android NDK. I really like to work with several components in a system including Linux kernel or keep my emotions on user space.
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