2019-08-23Android库分析工具（崩溃反编译）

Android崩溃调试手段

(1)#cd /Users/laixh/MiGuProjectCode/AiDemo0704/ai-demo/app/build/outputs/apk/defaultBuild/debug

(2)解压app-defaultBuild-debug.apk得到./lib/libvideo.so

(3)#/Users/laixh/Library/Android/ndk/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-objdump -d ./libvideo.so > ./1.txt

(4)Android stdio  Logcat模式下  得到崩溃日记，如下：

2019-08-21 20:19:52.335 2501-2501/? A/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***

2019-08-21 20:19:52.335 2501-2501/? A/DEBUG: Build fingerprint: 'xiaomi/vince/vince:8.1.0/OPM1.171019.019/V10.3.1.0.OEGCNXM:user/release-keys'

2019-08-21 20:19:52.335 2501-2501/? A/DEBUG: Revision: '0'

2019-08-21 20:19:52.335 2501-2501/? A/DEBUG: ABI: 'arm'

2019-08-21 20:19:52.335 2501-2501/? A/DEBUG: pid: 24839, tid: 2241, name: Thread-89713  >>> com.hisunflytone.android <<<

2019-08-21 20:19:52.335 2501-2501/? A/DEBUG: signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------

2019-08-21 20:19:52.350 2501-2501/? A/DEBUG: Abort message: 'invalid pthread_t 0x8c1 passed to libc'

2019-08-21 20:19:52.350 2501-2501/? A/DEBUG:    r0 00000000  r1 000008c1  r2 00000006  r3 00000008

2019-08-21 20:19:52.350 2501-2501/? A/DEBUG:    r4 00006107  r5 000008c1  r6 ceafabb4  r7 0000010c

2019-08-21 20:19:52.350 2501-2501/? A/DEBUG:    r8 00000000  r9 00000000  sl ceafad10  fp d12a2cc4

2019-08-21 20:19:52.350 2501-2501/? A/DEBUG:    ip 00000002  sp ceafaba0  lr ef3fafcf  pc ef3f49b8  cpsr 200f0030

2019-08-21 20:19:52.359 2501-2501/? A/DEBUG: backtrace:

2019-08-21 20:19:52.360 2501-2501/? A/DEBUG:    #00 pc 0001a9b8  /system/lib/libc.so (abort+63)

2019-08-21 20:19:52.360 2501-2501/? A/DEBUG:    #01 pc 00048573  /system/lib/libc.so (__pthread_internal_find(long)+94)

2019-08-21 20:19:52.360 2501-2501/? A/DEBUG:    #02 pc 00048469  /system/lib/libc.so (pthread_gettid_np+2)

2019-08-21 20:19:52.360 2501-2501/? A/DEBUG:    #03 pc 0004887b  /system/lib/libc.so (pthread_kill+18)

2019-08-21 20:19:52.360 2501-2501/? A/DEBUG:    #04 pc 00005889  /data/app/com.hisunflytone.android-W-gW5oZH01OTkJt6XSv0PA==/lib/arm/libBugly.so

2019-08-21 20:19:52.360 2501-2501/? A/DEBUG:    #05 pc 000022c9  /system/bin/app_process32 (art::SignalChain::Handler(int, siginfo*, void*)+220)

2019-08-21 20:19:52.360 2501-2501/? A/DEBUG:    #06 pc 00018d0c  /system/lib/libc.so

2019-08-21 20:19:52.360 2501-2501/? A/DEBUG:    #07 pc 000c7fc0  /data/app/com.hisunflytone.android-W-gW5oZH01OTkJt6XSv0PA==/lib/arm/libvideo.so (init_complex_filtergraph+295)

2019-08-21 20:19:52.360 2501-2501/? A/DEBUG:    #08 pc 000cf505  /data/app/com.hisunflytone.android-W-gW5oZH01OTkJt6XSv0PA==/lib/arm/libvideo.so (ffmpeg_parse_options+452)

2019-08-21 20:19:52.360 2501-2501/? A/DEBUG:    #09 pc 000bc9c9  /data/app/com.hisunflytone.android-W-gW5oZH01OTkJt6XSv0PA==/lib/arm/libvideo.so (ffmpeg_exec+176)

2019-08-21 20:19:52.360 2501-2501/? A/DEBUG:    #10 pc 000c2f4b  /data/app/com.hisunflytone.android-W-gW5oZH01OTkJt6XSv0PA==/lib/arm/libvideo.so (muti_video_compose+1026)

2019-08-21 20:19:52.360 2501-2501/? A/DEBUG:    #11 pc 000a7e5d  /data/app/com.hisunflytone.android-W-gW5oZH01OTkJt6XSv0PA==/lib/arm/libvideo.so

2019-08-21 20:19:52.360 2501-2501/? A/DEBUG:    #12 pc 0004828b  /system/lib/libc.so (__pthread_start(void*)+22)

2019-08-21 20:19:52.360 2501-2501/? A/DEBUG:    #13 pc 0001b593  /system/lib/libc.so (__start_thread+32)

（5）从LOG看崩溃在init_complex_filtergraph+295偏移，查看崩溃原因