[ECOS] Entry point

[ECOS] Entry point

[Michele Portolan]

Hello everyone,
which is the entry point for eCos, compiled with a basic kernel+scheduler?  From my ananlysis it would seem to be "reset_vector", but is it true?
I use it on Leon2 rpocessor, and on my experimental setup I need to manually make the jump to the entry point for having it running.

Thanks anyone,

Michele

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Re: [ECOS] Entry point

[Gary Thomas]

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Michele Portolan wrote:
> Hello everyone,
> which is the entry point for eCos, compiled with a basic
> kernel+scheduler?  From my ananlysis it would seem to be "reset_vector",
> but is it true?
> I use it on Leon2 rpocessor, and on my experimental setup I need to
> manually make the jump to the entry point for having it running.

Look at your linker file (.../hal/sparc/arch/current/src/sparc.ld)
It specifies the entry point as 'reset_vector'

- --
- ------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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Re: [ECOS] Entry point

[Andrew Lunn]

On Wed, Apr 25, 2007 at 03:22:50PM +0200, LONY David wrote:
> Hi all,
> 
> I'm new to eCos and I wanted to know if it possible to define an entry 
> point when eCos start?
> For instance, I have this kind of code :
> 
> #include <stdio.h>
> 
> main()
> {
> 
>    printf("Hello\n");
>    return;
> }
> 
> In Linux Synthetic Target template it would work great... but if I 
> change my code to this :
> 
> #include <stdio.h>
> 
> void test()
> {
>    printf("Hello\n");
>    return;
> }
> 
> How I can specified to eCos kernel to execute this function? I see in 
> gdb (when I debug eCos) that the function cyg_user_start is called so I 
> change my code to this:
> 
> #include <stdio.h>
> 
> void cyg_user_start(void)
> {
>    printf("Hello\n");
> }
> 
> And It work too... But I don't know if it's the good method to do this...
> Could someone help me please?

http://ecos.sourceware.org/docs-latest/ref/kernel-overview.html

Section Calling Contexts

        Andrew

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[ECOS] Entry point

[LONY David]

Hi all,

I'm new to eCos and I wanted to know if it possible to define an entry 
point when eCos start?
For instance, I have this kind of code :

#include <stdio.h>

main()
{

    printf("Hello\n");
    return;
}

In Linux Synthetic Target template it would work great... but if I 
change my code to this :

#include <stdio.h>

void test()
{
    printf("Hello\n");
    return;
}

How I can specified to eCos kernel to execute this function? I see in 
gdb (when I debug eCos) that the function cyg_user_start is called so I 
change my code to this:

#include <stdio.h>

void cyg_user_start(void)
{
    printf("Hello\n");
}

And It work too... But I don't know if it's the good method to do this...
Could someone help me please?
PS : I'm using the uitron profile... (sorry for my english, I'm French 
and I know that my english it's bad...)

Thanks
Best regards

David LONY


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