[PATCH] RTEMS: Use strict DWARF-2 on ARM, PowerPC, SPARC

[Ralf Corsepius]

On 06/18/2013 02:24 PM, Sebastian Huber wrote:
> On 06/18/2013 02:10 PM, Ralf Corsepius wrote:
>> On 06/18/2013 01:58 PM, Sebastian Huber wrote:
>>> Some debuggers do not cope with the new DWARF3/4 debug format introduced
>>> with GCC 4.8.  Default to strict DWARF-2 on ARM, PowerPC and SPARC for
>>> now.
>>>
>>> This patch should be committed to GCC 4.8 and 4.9.
>>
>> I am opposed to this patch, because
>>
>> * GNU software should not care about the limitations of commerical
>> stuff and
>> should only care about gdb.
>
> Actually GCC cares about commercial stuff, e.g. the VxWorks and Darwin
> ports use exactly the same mechanism.
Well, RTMES these OSes are _closed source_. If GCC is interested in 
playing it nice to them (Which I consider to be a management fault), 
they have no other choice.

RTEMS is open source, therefore there is no need to "play it nice" to 
any closed source debugger stuff or similar.

> The SPARC version of GDB seems to have problems here also:
>
> http://www.rtems.org/pipermail/rtems-devel/2013-May/003188.html
>
>>
>> * We should stay with the GCC's defaults and not diverge from these.
>
> In general this is true.
>
>> * Users, who are facing issues with commerical stuff can always
>> manually pass
>> appropriate options to CC if they need it.
>
> This approach is not possible for the multilibs.

It surly is. Simply let alone and forget about these commercial tools 
and help improving the GNU versions.

People who are using these commercial tools need to comprehend, that 
they are on their own and need to cope with the problems *their* choice 
implies are homemade by themselves.

In other words, if GCC's debug format doesn't work with the tools you 
spent a lot of money for, it's your privat mistake to have spent money 
on them.

It definitely is not a valid reason to strangle RTEMS!


Ralf