我正在使用AndEngine与PhysicsBox2DExtension制作游戏。我的游戏一直在崩溃，我在未经过滤的LogCat中得到了这个：
07-06 13:25:27.266: I/DEBUG(19582): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
07-06 13:25:27.266: I/DEBUG(19582): Build fingerprint: 'TMOUS/SGH-T959V/SGH-T959V/SGH-T959V:2.2.1/FROYO/VUVKD1:user/release-keys'
07-06 13:25:27.274: I/DEBUG(19582): pid: 22238, tid: 22263 >>> com.prattia.webs.testgfx5 <<<
07-06 13:25:27.274: I/DEBUG(19582): signal 11 (SIGSEGV), fault addr deadbaad
07-06 13:25:27.286: I/DEBUG(19582): r0 00000000 r1 afd14921 r2 00000027 r3 00000070
07-06 13:25:27.286: I/DEBUG(19582): r4 afd42328 r5 00000000 r6 00000000 r7 43095ba0
07-06 13:25:27.297: I/DEBUG(19582): r8 447d75ac r9 43095b5c 10 80aa23f4 fp 43095b58
07-06 13:25:27.297: I/DEBUG(19582): ip 00001730 sp 447d74c8 lr deadbaad pc afd11f74 cpsr 60000030
07-06 13:25:27.301: I/DEBUG(19582): d0 6472656767756265 d1 646f426574616572
07-06 13:25:27.301: I/DEBUG(19582): d2 2074736e6f632879 d3 654479646f423262
07-06 13:25:27.305: I/DEBUG(19582): d4 73656e69676e655f d5 69676e45646e412f
07-06 13:25:27.309: I/DEBUG(19582): d6 6e45646e412f656e d7 73796850656e6967
07-06 13:25:27.309: I/DEBUG(19582): d8 40c9de1ed6a7d420 d9 43e0000000000000
07-06 13:25:27.313: I/DEBUG(19582): d10 41dfffffffc00000 d11 c3e0000000000000
07-06 13:25:27.313: I/DEBUG(19582): d12 0000000000000000 d13 0000000000000000
07-06 13:25:27.313: I/DEBUG(19582): d14 0000000000000000 d15 0000000000000000
07-06 13:25:27.317: I/DEBUG(19582): d16 000000c247d403f0 d17 400921fb54442d18
07-06 13:25:27.317: I/DEBUG(19582): d18 3f810f1cab7c1816 d19 3f651bd7d319330c
07-06 13:25:27.317: I/DEBUG(19582): d20 bfc55034095fd11a d21 be5ae514498b308e
07-06 13:25:27.321: I/DEBUG(19582): d22 0000000000000000 d23 3de5d93a5acfd57c
07-06 13:25:27.325: I/DEBUG(19582): d24 bfb3b25552016f7e d25 3fb10e9526779bed
07-06 13:25:27.325: I/DEBUG(19582): d26 bfaddfe9639fbb1a d27 3fa97c111b7b144e
07-06 13:25:27.325: I/DEBUG(19582): d28 bfa2b4442c6a6c2f d29 0000000000000000
07-06 13:25:27.325: I/DEBUG(19582): d30 0000000000000000 d31 0000000000000000
07-06 13:25:27.325: I/DEBUG(19582): scr 60000012
07-06 13:25:27.469: I/DEBUG(19582): #00 pc 00011f74 /system/lib/libc.so
07-06 13:25:27.473: I/DEBUG(19582): #01 pc 0001921e /system/lib/libc.so
07-06 13:25:27.473: I/DEBUG(19582): #02 pc 00026558 /data/data/com.prattia.webs.testgfx5/lib/libandenginephysicsbox2dextension.so
07-06 13:25:27.473: I/DEBUG(19582): #03 pc 00013e7c /data/data/com.prattia.webs.testgfx5/lib/libandenginephysicsbox2dextension.so
07-06 13:25:27.473: I/DEBUG(19582): #04 pc 00016e34 /system/lib/libdvm.so
07-06 13:25:27.473: I/DEBUG(19582): code around pc:
07-06 13:25:27.473: I/DEBUG(19582): afd11f54 2d00682d e029d1fb b12b68db c05cf8df
07-06 13:25:27.473: I/DEBUG(19582): afd11f64 f8442001 4798000c e054f8df 26002227
07-06 13:25:27.473: I/DEBUG(19582): afd11f74 2000f88e eec2f7fb f7fc2106 f04feff8
07-06 13:25:27.473: I/DEBUG(19582): afd11f84 91035180 460aa901 96012006 f7fc9602
07-06 13:25:27.473: I/DEBUG(19582): afd11f94 a905eb7e 20024632 eb88f7fc eeaef7fb
07-06 13:25:27.473: I/DEBUG(19582): code around lr:
07-06 13:25:27.477: I/DEBUG(19582): deadba8c ffffffff ffffffff ffffffff ffffffff
07-06 13:25:27.477: I/DEBUG(19582): deadba9c ffffffff ffffffff ffffffff ffffffff
07-06 13:25:27.477: I/DEBUG(19582): deadbaac ffffffff ffffffff ffffffff ffffffff
07-06 13:25:27.477: I/DEBUG(19582): deadbabc ffffffff ffffffff ffffffff ffffffff
07-06 13:25:27.477: I/DEBUG(19582): deadbacc ffffffff ffffffff ffffffff ffffffff
07-06 13:25:27.477: I/DEBUG(19582): stack:
07-06 13:25:27.477: I/DEBUG(19582): 447d7488 00000000
07-06 13:25:27.477: I/DEBUG(19582): 447d748c 00000000
07-06 13:25:27.477: I/DEBUG(19582): 447d7490 afd425a0 /system/lib/libc.so
07-06 13:25:27.477: I/DEBUG(19582): 447d7494 afd4254c /system/lib/libc.so
07-06 13:25:27.477: I/DEBUG(19582): 447d7498 00000000
07-06 13:25:27.477: I/DEBUG(19582): 447d749c afd1596b /system/lib/libc.so
07-06 13:25:27.481: I/DEBUG(19582): 447d74a0 afd14921 /system/lib/libc.so
07-06 13:25:27.481: I/DEBUG(19582): 447d74a4 afd14921 /system/lib/libc.so
07-06 13:25:27.481: I/DEBUG(19582): 447d74a8 00000070
07-06 13:25:27.481: I/DEBUG(19582): 447d74ac afd42328 /system/lib/libc.so
07-06 13:25:27.481: I/DEBUG(19582): 447d74b0 00000000
07-06 13:25:27.481: I/DEBUG(19582): 447d74b4 447d74dc
07-06 13:25:27.481: I/DEBUG(19582): 447d74b8 43095ba0
07-06 13:25:27.481: I/DEBUG(19582): 447d74bc afd14bc3 /system/lib/libc.so
07-06 13:25:27.481: I/DEBUG(19582): 447d74c0 df002777
07-06 13:25:27.481: I/DEBUG(19582): 447d74c4 e3a070ad
07-06 13:25:27.481: I/DEBUG(19582): #00 447d74c8 00000003
07-06 13:25:27.481: I/DEBUG(19582): 447d74cc 43095b58
07-06 13:25:27.481: I/DEBUG(19582): 447d74d0 43095ba0
07-06 13:25:27.485: I/DEBUG(19582): 447d74d4 afd14f29 /system/lib/libc.so
07-06 13:25:27.485: I/DEBUG(19582): 447d74d8 afd4254c /system/lib/libc.so
07-06 13:25:27.485: I/DEBUG(19582): 447d74dc fffffbdf
07-06 13:25:27.485: I/DEBUG(19582): 447d74e0 00000054
07-06 13:25:27.485: I/DEBUG(19582): 447d74e4 00000003
07-06 13:25:27.485: I/DEBUG(19582): 447d74e8 43095b58
07-06 13:25:27.489: I/DEBUG(19582): 447d74ec afd19223 /system/lib/libc.so
07-06 13:25:27.489: I/DEBUG(19582): #01 447d74f0 00000054
07-06 13:25:27.489: I/DEBUG(19582): 447d74f4 821412bc /data/data/com.prattia.webs.testgfx5/lib/libandenginephysicsbox2dextension.so
07-06 13:25:27.489: I/DEBUG(19582): 447d74f8 447d75d0
07-06 13:25:27.489: I/DEBUG(19582): 447d74fc 8212655c /data/data/com.prattia.webs.testgfx5/lib/libandenginephysicsbox2dextension.so
07-06 13:25:28.040: I/DEBUG(19582): dumpstate /data/log/dumpstate_app_native.txt
07-06 13:25:28.114: I/dumpstate(22478): begin
07-06 13:25:28.122: I/dalvikvm(2480): threadid=3: reacting to signal 3
07-06 13:25:28.157: I/dalvikvm(2480): Wrote stack traces to '/data/anr/traces.txt'
07-06 13:25:28.192: I/BootReceiver(2480): Copying /data/tombstones/tombstone_09 to DropBox (SYSTEM_TOMBSTONE)
07-06 13:25:28.239: I/dalvikvm(2604): threadid=3: reacting to signal 3
07-06 13:25:28.239: I/dalvikvm(2604): Wrote stack traces to '/data/anr/traces.txt'
任何人都可以向我解释发生了什么以及如何找到导致崩溃的确切原因？
我的代码中有两个地方崩溃，但它确实相当随机。执行此方法后：
private void destroyFiller(){ //Deletes filler
if(filler[fillerNum].active){
Log.e("destroyFiller","Destroying filler");
filler[fillerNum].active=false;
filler[fillerNum].body.setActive(false);
scene.detachChild(filler[fillerNum].sprite);
fillerCount--;
fillersLeftText.setText("Balls left: "+Integer.toString(fillerCount));
if(fillerCount==0)
gameOver();
Log.e("destroyFiller","Destroyed");
}
}
在此方法中执行指示的行之后：
private void levelComplete(){
runOnUiThread(new Runnable() {
public void run() {
Toast.makeText(TestGFX5Activity.this, "Level Complete", Toast.LENGTH_SHORT).show();
}
});
Log.e("Level Complete","Going to reset values");
//Reset values
level++;
destroyerNum++;
fillerCount = (originalNumberOfFillers + level - 1);
areaFilled=0;
fillAreaPercent = 0;
//Rid scene of sprites
for(int x=0;x<=fillerNum;x++){
filler[x].body.setActive(false);
scene.detachChild(filler[x].sprite);
filler[x].active=false;
filler[x].scale=originalSpriteScale;
filler[x].body.setUserData("inactive");
}
levelText.setText("Level: "+Integer.toString(level));
fillersLeftText.setText("Balls left: "+Integer.toString(fillerCount));
percentFilledText.setText("0%");
fillerNum = -1;
Log.e("Level Complete","values reset");
randx = random.nextInt(650) + 25;
randy = random.nextInt(400) + 25;
randix = random.nextInt(10);
randiy = random.nextInt(10);
if(randix%2==0)
ix = 5;
else
ix = -5;
if(randiy%2==0)
iy = 5;
else
iy = -5;
Log.e("Level Complete","Creating destroyer");
destroyer[destroyerNum] = new Ball(randx, randy, destroyerTR, getVertexBufferObjectManager(), ix, iy); //crashes here
Log.e("Level Complete","complete"); //This line never reached.
}
答案 0 :(得分：8)
您应该使用here所述的addr2line工具，并在库中查找这两个地址，以找出导致崩溃的原因：
#02 pc 00026558 /data/data/com.prattia.webs.testgfx5/lib/libandenginephysicsbox2dextension.so
#03 pc 00013e7c /data/data/com.prattia.webs.testgfx5/lib/libandenginephysicsbox2dextension.so
所以在Windows下你应该：
从设备复制库：
adb pull /data/data/com.prattia.webs.testgfx5/lib/libandenginephysicsbox2dextension.so C:\
使用命令行运行addr2line工具：
cd %PATH_TO_YOUR_NDK%\toolchains\arm-linux-androideabi-4.4.3\prebuilt\linux-x86\bin
arm-linux-androideabi-addr2line -C -f -e C:\libandenginephysicsbox2dextension.so
按地址输入地址：
00026558 [ENTER]
> here will be function name and line
00013e7c [ENTER]
> and again
注意：在Windows下运行此工具可能比Linux下的信息少，因此您可以选择将发行版安装为虚拟机，并按照上面原始答案链接中的说明进行操作。
另一种（更简单？）方式是使用ndk-stack：
运行ndk-stack：
cd %PATH_TO_YOUR_NDK%
ndk-stack -sym C:\libandenginephysicsbox2dextension.so -dump C:\dump.txt
答案 1 :(得分：3)
libc正在经历分段违规，几乎可以肯定，因为andengine给它一个坏指针。您可能没有libc的调试符号，但是您可以adb pull和objdump来确定哪些动态函数被赋予了错误的参数。或者，如果您的andengine库具有调试符号，则可以使用地址到行工具在那里跟踪地址。
你必须弄清楚这是你要求发动机做什么的错误，或者错误是否在发动机本身。