SamyGO

JoeyBiggins wrote:Im not sure about the kernel version but im on an E series EU40ES7000.

The libMoIPCamera_2058.so is a file found in the empCamera folder /mtd_rwcommon/emps/empCamera/
I am trying to load this library so that I can use the camera functions to create my own application.

I have managed to resolve the error I had by first opening some of the other library dependancies, but am now struggling to use the functions in the library.
Im trying to load the functions using the dlsym method similar to the way mentioned in this topic: viewtopic.php?f=1&t=1009

I am using the mangled function names from decompiling the library and seem to be able to call them. Has anyone made any progress in this area?

JoeyBiggins wrote:Hi!

I'm playing around simply trying to load the libMoIPCamera.so files to gain access to simple camera functions. I can't seem to find anywhere on SamyGo where this has been done.

I'm attempting to do this by:

Code: Select all

		if ( (newHandle = dlopen("....libMoIPCamera_2058.so",RTLD_LAZY | RTLD_GLOBAL)) == NULL )
		{
			printf( "Could not open file : %s\n", dlerror() );	
			return 1;
		}

but all i receive is "Could not open file : ....libMoIPCamera_205b.so: undefined symbol: _ZTVN10__cxxabiv117__class_type_infoE"

Any thoughts on why the symbol is undefined.

this symbole is in best case in some other library (.so file, then you need to link agains this library, but this can give you more unresolved symboles...) in worst case in exeDSP (statically)

JoeyBiggins wrote:...
So far I have been able to load two of the camera libraries but one of them requires the missing symbol _ZTI8PCThread and I havent had much luck finding this.. I am hoping it is not in exeDSP!

At the moment im just slowely looking through the .so files in the hope that I will find it. I dont know any better method of finding it!

/* libMMFCore.so: undefined symbol: _ZTI8PCThread */
/* typedef void *(*PCThread){
        void *(*SetPriority)(int);
        void *(*Create)(unsigned long);
        void *(*Destroy)(void);
}PCThread; */
typedef void PCThread(void);
PCThread *_ZTI8PCThread(void){
        printf("%s:\n",__FUNCTION__);
}