android ndk 调试问题

A/libc: Fatal signal 5 (SIGTRAP), code 1 (TRAP_BRKPT), fault addr

int readAllData(){
    //char* strPath = "test.264";
    LOGE(" 1211  strPath= %s", strPath);
    FILE* fp = fopen(strPath, "rb");
    if (fp == NULL) {
        LOGE(" 1211  fp == null");
        return ;
    }
    char buf[1024];

    int buf_len = 1024;
    int mHas = 1;
    int mBytesRead = 0;
    while (mHas){
        if (fread(buf, 1, buf_len, fp) != buf_len) {
            fclose(fp);
            mHas = 0;
        }
        memcpy(gBuffer + mBytesRead,buf,buf_len);
        mBytesRead += buf_len;

    }
    LOGE("1211 ab2 %d,%d",gBytesRead , mBytesRead);
    gBytesRead = mBytesRead;
    return 1;
}

原来是一个分支没返回值，改为return 0，就好了，看来ndk 和 普通cpp报错还不一样，to thi