nanogui: Thread: nano-X-0.91 for eCos

Hello all,

 

I am trying to compile nano-X-0.91 for eCos and a NIOSII platform.

But to have success I needed to do some modifications in some files.

For example the modifications I had to do in the specific eCos part of nano-x.h are:

Add a '\' after dptr->nxGlobalLock = 0;

Add #include "lock.h"     lock.h is needed by MWMUTEX

 

In lock.h  I prevented multiple inclusions.

In client.c : In all functions using LOCK(&nxGlobalLock) I added ACCESS_PER_THREAD_DATA() before.

 

I have a complete list of modifications I did to display the first screen of the landmine demo, I did not yet install a keyboard or mouse.

I tested only the LINK_APP_INTO_SERVER     = Y

I also checked the CVS but it seems the specific eCos part is the same.

I would like to know if someone uses nano-X-0.91 with eCos and what modification they did.

 

Thanks and Regards,

Guy

 

 

Guy Lecordier

Firmware designer

 

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> I have a complete list of modifications I did to display the first screen 
> of the landmine demo, I did not yet install a keyboard or mouse.

If there are changes from the CVS version, please submit them
as "diff -urN" format.


> I tested only the LINK_APP_INTO_SERVER     = Y

This is the only way the eCos version will work.


> I also checked the CVS but it seems the specific eCos part is the same.

I'm surprised - I thought there were eCos mods after 0.91 in CVS.


Regards,

Greg 

I am trying to understand why the nxGlobalLock is defined in a per thread data in ECOS which means it is local to each thread.
As the name says it should be global to all threads which need to lock unlock some part of code. 
 
Could someone know this ?  

Regards
Guy



-----Message d'origine-----
De : Greg Haerr ####@####.#### 
Envoyé : mardi 30 septembre 2008 19:43
À : Lecordier, Guy; ####@####.####
Objet : Re: [nanogui] nano-X-0.91 for eCos

> I have a complete list of modifications I did to display the first screen 
> of the landmine demo, I did not yet install a keyboard or mouse.

If there are changes from the CVS version, please submit them
as "diff -urN" format.


> I tested only the LINK_APP_INTO_SERVER     = Y

This is the only way the eCos version will work.


> I also checked the CVS but it seems the specific eCos part is the same.

I'm surprised - I thought there were eCos mods after 0.91 in CVS.


Regards,

Greg 

> I am trying to understand why the nxGlobalLock is defined in a per thread 
> data in ECOS which means it is local to each thread.

This code was originally contributed by some eCos developers,
and I accepted it without further testing.  This original
contribution worked only with LINK_APP_INTO_SERVER=Y,
and required all applications (nano-X demos) to run
as seperate threads (rather than processes) linked with
the server, as a single executable.

One way to test your change would be to recompile the
single executable for eCos (with all the demo apps builtin),
and see whether this works when nxGlobalLock is
in fact global, rather than TLS.

Regards,

Greg