Re: Debugger OS-awareness

[Jonathan Larmour <jifl@eCosCentric.com>]

Janez Ulcakar wrote:
> Hi,
> 
> You're correct in your assumptions. We've encountered that 'special function
> spawned by the ICE' approach before, and I think it's better suited for an
> ICE.
> 
> a) Does eCos already provide such a function (how's it called, where does it
> take it's params from, and where do we read the results from and what
> format)

It wasn't made generic but there's one that was *intended* to be made 
generic in the hal/v85x ports. Search for CYGDBG_HAL_V850_ICE, and in 
particular look at hal/v85x/v850/current/src/v850_ice.cxx.

There's also one for the ARM at hal/arm/arch/current/src/arm_stub.c but 
that isn't quite as good as it requires stubs to be included in applications.

> b) should a debugger (we) provide a C source that the user includes in his
> build

Ideally such support should be built into the eCos port! If it's for an 
existing target, contributing it back to the community would be the best 
thing for users. Of course the support would want to be default off for 
users who don't need it.

Jifl
-- 
eCosCentric    http://www.eCosCentric.com/    The eCos and RedBoot experts
--[ "You can complain because roses have thorns, or you ]--
--[  can rejoice because thorns have roses." -Lincoln   ]-- Opinions==mine