如何使用addr2line Android中 [英] How to use addr2line in Android
问题描述
我坚持我的应用程序,因为我无法调试,因为它是一个多线程的一个,崩溃,错误SIGSEGV。我从LogCat中,这给了我地址,我的本地库获得大量的信息。这将是有益的,如果我可以转换这些地址到我的code。
I am stuck with my app, as I am unable to debug as it is a multithreaded one and crashes with error SIGSEGV. I get lot of information from LogCat, which gives me addresses in my native library. It would be helpful if I could convert these addresses into my code.
没有任何人有任何想法如何使用addr2line,其提供有Android的NDK?
Does anybody have any idea how to use addr2line, which is provided with android-ndk?
推荐答案
让我们说的logcat告诉你下面的崩溃日志(这是我的一个项目):
Let's say that logcat show you the following crash log (this is from one of my projects):
I/DEBUG ( 31): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
I/DEBUG ( 31): Build fingerprint: 'generic/sdk/generic:2.3/GRH55/79397:eng/test-keys'
I/DEBUG ( 31): pid: 378, tid: 386 >>> com.example.gltest <<<
I/DEBUG ( 31): signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 00000000
I/DEBUG ( 31): r0 001dbdc0 r1 00000001 r2 00000000 r3 00000000
I/DEBUG ( 31): r4 00000000 r5 40a40000 r6 4051a480 r7 42ddbee8
I/DEBUG ( 31): r8 43661b24 r9 42ddbed0 10 42ddbebc fp 41e462d8
I/DEBUG ( 31): ip 00000001 sp 436619d0 lr 83a12f5d pc 8383deb4 cpsr 20000010
I/DEBUG ( 31): #00 pc 0003deb4 /data/data/com.example.gltest/lib/libnativemaprender.so
I/DEBUG ( 31): #01 pc 00039b76 /data/data/com.example.gltest/lib/libnativemaprender.so
I/DEBUG ( 31): #02 pc 00017d34 /system/lib/libdvm.so
看最后3行;这是你的调用堆栈。 PC是程序计数器,和PC的堆栈帧#00为您提供了故障发生的那个地址。这是数字传递给addr2line
Look at the last 3 lines; this is your callstack. 'pc' is the program counter, and the pc for stack frame #00 gives you the address where the crash occurred. This is the number to pass to addr2line.
我使用NDK R5,所以我使用的可执行文件位于 $ NDK /工具链/ ARM-Linux的androideabi-4.4.3 / prebuilt / Linux的-86 /仓
;确保在您的 $ PATH
。使用的命令看起来像
I'm using NDK r5, so the executable I'm using is located at $NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin
; make sure that is in your $PATH
. The command to use looks like
arm-linux-androideabi-addr2line -C -f -e obj/local/armeabi/libXXX.so <address>
或者,对上面的情况:
Or, for the case above:
arm-linux-androideabi-addr2line -C -f -e obj/local/armeabi/libnativemaprender.so 0003deb4
,让你崩溃的位置。
Which gives you the location of the crash.
请注意:
- -C标志是解码C ++ code
- 使用.so文件下 物镜/本地/ armeabi,因为这是 非剥离版本
- The -C flag is to demangle C++ code
- Use the .so file under obj/local/armeabi, since this is the non-stripped version
此外,使用NDK R5具有2.3 AVD的时候,它实际上是可以调试多线程code。
Also, when using NDK r5 with a 2.3 AVD, it is actually possible to debug multithreaded code.
这篇关于如何使用addr2line Android中的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!