RE: [microblaze-uclinux] Hello World

["Shamus McCarthy" <shamusm@xxxxxxxxxxxxxxxxxxxxxx>]

Hi John,

> After you run ./hello, can you recover the login?

Yes, after ./hello executes, the terminal is returned and commands can be executed.

> Can you execute  "stty sane" (even if you can't see the characters as you 
> type them)?

Yes, executing "stty sane" executes and returns without printing anything to the screen.

> What if you do the out of tree compile, but remove the printf call (ie 
> just have the program do effectively nothing)?

Removing the printf call and then executing ./hello from a telnet prompt results in the same garbled mess.  Some of the junk that is printed is boxed below:

------------------------------------------------------
Command: ÉÉÉÉÉÉÉÉUëσSR╗ òí òâ° t
                                âδ♦ ╨ï♥â° u⌠X[]├UëσSΦ
ÉÉÉÉÉÉÉÉUëσSR╗: Bad command or file name
Command:
Command: 3.3.2 (Mandrake Linux 10.0 3.3.2-4mdk)
3.3.2: Bad command or file name
Command:
Command: 0.7
------------------------------------------------------

It seems like it is getting compiled into x86 instructions instead of microblaze instructions.  In fact, the hello world executes fine on the x86 linux system.

> Does the same happen if you do an in-tree compile (basically create a 
> uClinux-dist/user/hello directory, put your source and Makefile in 
> there, and adjust the /user/Makefile to build your app)?

I will get to work on this.

Thank you!

-Shamus



  

-----Original Message-----
From: owner-microblaze-uclinux@itee.uq.edu.au [mailto:owner-microblaze-uclinux@itee.uq.edu.au] On Behalf Of John Williams
Sent: Monday, July 12, 2004 6:01 PM
To: microblaze-uclinux@itee.uq.edu.au
Subject: Re: [microblaze-uclinux] Hello World

Hi Shamus,

McCarthy, Shamus wrote:

> I am trying to compile a simple hello world application for an Insight/Memec
> Virtex2 board.  I have read the out of tree compile and am even using the
> MAKEFILE from this page; however, when I run the compiled program I receive
> a garbled mess in the telnet screen.  Here is my testing procedure:
> 
> 1) Get to a working shell prompt (telnet into the board)
> 2) Mount a NFS file system (Mandrake 10)
> 3) cd /mnt
> 4)./hello

That's very strange - a couple of questions:

After you run ./hello, can you recover the login?  ie is the system 
crashing, or is it just getting the terminal into a funny state?  Can 
you execute  "stty sane" (even if you can't see the characters as you 
type them)?

Does the same happen if you do an in-tree compile (basically create a 
uClinux-dist/user/hello diurectory, put your source and Makefile in 
there, and adjust the /user/Makefile to build your app)?

What if you do the out of tree compile, but remove the printf call (ie 
just have the program do effectively nothing)?

John
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