unresolved symbol when downloading.

[sudhee...@hotmail.com]

hi all,

i am a newbie to the tornado.i am using tornado2.2.1 IDE, when i am
downloading the below .out file, i am facing some problem with
unresolved symbols like

Errors while downloading
D:/Downloads/Mywork/projects/tornado_APP_pgms/virtual/SIMNTgnu/virtual.out:
_cout
___rtti_class
___builtin_delete
___rtti_si
___ls__7ostreamPCc
_endl__FR7ostream
___builtin_new
___sjthrow
___rtti_user
___get_eh_context
___terminate

what could be the reason behind this.Please help me out from
this problem .

regards,
venkat.

[Martin Raabe]

Hello venkat,
sudhee...@hotmail.com schrieb:

> i am a newbie to the tornado.i am using tornado2.2.1 IDE, when i am
> downloading the below .out file, i am facing some problem with
> unresolved symbols like

...

> what could be the reason behind this.Please help me out from
> this problem .

You are obviously trying to download a C++ application.
I guess, that the simulatior is not configured for C++.
So reconfigure and build the simulator by ading the c++ support to the
bootable project, you need to create.

Hope it helps.

--
BaSystem Martin Raabe
E: Martin.Raabe<at>B-a-S-y-s-t-e-m<dot>de

[shuy...@gmail.com]

There may be another possibility that the function you download call
some functions which are not exist in your downloadable image
"vxWorks.st".
When meeting with this error, tornado will give this "unresolved
symbols"
message.

If the problem is what I described, you should find out these undefined
functions, and either define them or call another function instead.

[ssubbarayan]

Venkat,
I would like to add my tip along with others who have given their
tips.Actually when your are working on C++,you should be doing "_extern
C"
in your application.I am not really aware whether you would have done
it.In case you have not done it,just google with in this group for
extern C and you would find a solution for your problem ,incase what I
said is the route cause.
I remember seeing same sort of query being posted a few days back.

Regards,
s.subbarayan

[mrjo...@gmail.com]

I'm also new to VxWorks and currently using Tornado 2.2.1 to do the
same thing. The ___builtin_delete has to be provided. I don't know what
it *should* do, but you can at least make the linker happy by simply
declaring and defining it in your source code:

void inline __builtin_delete( void * arg ) {}

The ___get_eh_context is related to exception handling (eh). Our
particular application does not require this (let's not debate
that...), so I added -fno-exceptions to the compiler arguments in the
build properties.

The rest of my load errors are like yours, terminate(), all the rtti
ones, etc.
I'm trying to use some STL (vector), so I'm also getting things like
this:

__malloc_alloc_template<0>::__malloc_alloc_oom_handler
__default_alloc_template<true, 0>::_S_start_free
__default_alloc_template<true, 0>::_S_end_free
__default_alloc_template<true, 0>::_S_heap_size
__default_alloc_template<true, 0>::_S_free_list

I've seen the advice here and elsewhere that the simpc does not have
C++ support compiled in by default and that you must build your own
simpc kernel. I have tried this, but cannot get it to compile because
my Tornado apparently does not have the C++ component available for the
simpc platform. Any help there would be greatly appreciated.

Thanks,
- Mike