Cocos2d-x Android NDK调试错误(9)：文件描述符不正确？

Question

当我使用Cocos2d-x开发安卓应用程序时，系统崩溃了。所以我使用的是ndk-stack，我得到了这个错误：

D:\Android\android-ndk-r8e>adb logcat | ndk-stack.exe -sym e:\graduation_project
\cocos2d-x-2.1.5\projects\Test_py\proj.android\obj\local\armeabi\
********** Crash dump: **********
Build fingerprint: 'google/mysid/toro:4.2.2/JDQ39/573038:user/release-keys'
pid: 9911, tid: 9950, name: Thread-1096  >>> com.einverne.test_py <<<
signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr ff7a8390
Stack frame #00  pc 0001055e  /system/lib/libc.so (dlmalloc+1729): Unable to ope
n symbol file e:\graduation_project\cocos2d-x-2.1.5\projects\Test_py\proj.androi
d\obj\local\armeabi\/libc.so. Error (9): Bad file descriptor
Stack frame #01  pc 0000dcc7  /system/lib/libc.so (malloc+10): Unable to open sy
mbol file e:\graduation_project\cocos2d-x-2.1.5\projects\Test_py\proj.android\ob
j\local\armeabi\/libc.so. Error (9): Bad file descriptor
Stack frame #02  pc 002a4bff  /data/app-lib/com.einverne.test_py-1/libcocos2dcpp
.so (cocos2d::unzOpenCurrentFile3(void*, int*, int*, int, char const*)+482): Rou
tine unzOpenCurrentFile3 in e:\graduation_project\cocos2d-x-2.1.5/cocos2dx/suppo
rt/zip_support/unzip.cpp:1494
Stack frame #03  pc 002a4d9f  /data/app-lib/com.einverne.test_py-1/libcocos2dcpp
.so (cocos2d::unzOpenCurrentFile(void*)+10): Routine unzOpenCurrentFile in e:\gr
aduation_project\cocos2d-x-2.1.5/cocos2dx/support/zip_support/unzip.cpp:1677
Stack frame #04  pc 002a302d  /data/app-lib/com.einverne.test_py-1/libcocos2dcpp
.so (cocos2d::ZipFile::getFileData(std::string const&, unsigned long*)+76): Rout
ine getFileData in e:\graduation_project\cocos2d-x-2.1.5/cocos2dx/support/zip_su
pport/ZipUtils.cpp:556
Stack frame #05  pc 002943c5  /data/app-lib/com.einverne.test_py-1/libcocos2dcpp
.so (cocos2d::CCFileUtilsAndroid::getFileData(char const*, char const*, unsigned
 long*)+76): Routine getFileData in e:\graduation_project\cocos2d-x-2.1.5/cocos2
dx/platform/android/CCFileUtilsAndroid.cpp:126
Stack frame #06  pc 00173267  /data/app-lib/com.einverne.test_py-1/libcocos2dcpp
.so (CLuaScriptReader::RunScriptFile(char const*, char*, char*)+46): Routine Run
ScriptFile in jni/../../Classes/LuaScriptReader.cpp:318
Stack frame #07  pc 00172129  /data/app-lib/com.einverne.test_py-1/libcocos2dcpp
.so (JudgeManager::getResult(std::string, std::string, CharacterEntity*, std::st
ring)+200): Routine getResult in jni/../../Classes/JudgeManager.cpp:51

当我回到我的代码时。

bool CLuaScriptReader::RunScriptFile(const char *filename,char* ret_string,char *name){
    if( m_plua == NULL || ret_string == NULL || filename == NULL ) return false;
#if CC_TARGET_PLATFORM == CC_PLATFORM_WIN32
    char filebuff[MAX_LUA_FILE_LEN] = "";
    char line[1024] = "";
    FILE* fpFile = fopen(filename,"r");
    if( fpFile == NULL ) {
        printf("can not find file %s\n",filename);
        return false;
    }
    while( fgets(line, 1024, fpFile) != NULL) {
        strcat(filebuff,line);
    }
    fclose(fpFile);
    RunScriptBuffer(filebuff,ret_string,name);
#endif
#if CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID
    unsigned long int size = 0;
    unsigned char* filebuff = CCFileUtils::sharedFileUtils()->getFileData(filename,"r",&size);
    CCString* ccStr = CCString::createWithData(filebuff,size);
    RunScriptBuffer(ccStr->getCString(),ret_string,name);
#endif
    return true;
}

该行出错：

unsigned char* filebuff = CCFileUtils::sharedFileUtils()->getFileData(filename,"r",&size);

然而，我总是使用这段代码来读取Android下的文件。可以在here中找到CLuaScriptReader类

Answer 1

你是如何编译这些文件的？

这似乎是脚本的一个问题。这几行代码：

signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr ff7a8390
Stack frame #00  pc 0001055e  /system/lib/libc.so (dlmalloc+1729): Unable to ope
n symbol file e:\graduation_project\cocos2d-x-2.1.5\projects\Test_py\proj.androi
d\obj\local\armeabi\/libc.so. Error (9): Bad file descriptor

信号11 -->内存发生故障，路径将不会通向任何地方。/表示UNIX系统中的路径，\表示到WINDOWS系统的路径，因此查找libc.so是有问题的

错误的文件描述符是linux，如果您在尝试访问文件时收到此错误消息，最突出的原因是文件系统损坏或磁盘块损坏。在这种情况下，你也会得到写错误。