[ECOS] virtual vectors problem

[Gary Thomas]

On Wed, 2005-09-07 at 15:25 +0200, Stephane Royo wrote:
> Hello,
> 
> I updated eCos via CVS, then my application two months ago. Since, i noticed
> that the comm_channels variable -used to contain the functions pointer on
> serial communication channel- is no more in data section but it is in bss
> section.
> 
> So, when my application is configurated to works in RAM in order to debug
> it, i have problem. Indeed, in this configuration i use the option "Inherit
> console settings from ROM monitor", but unfortunately the comm_channels
> variable is put to zero during the bss initialization consequently, all
> subsequent accesses to comm_channels variable cause a hardware reset.
> 
> I didn't find anything in eCos sources or in my configuration (ecc file)
> which explains this change of location, but to solve the problem i
> initialized the comm_channels at the time of declaration : static
> hal_virtual_comm_table_t
> comm_channels[CYGNUM_HAL_VIRTUAL_VECTOR_NUM_CHANNELS+1]={0};
> 
> Anybody, could help me to understand the problem ?

We'd need to know what platform/target you are using.  This stuff
works (has worked for many years), so it's probably something "special"
in your target support.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------


-- 
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss