Re: update ARM platform HALs

[Gary Thomas <gary@mlbassoc.com>]

Jonathan Larmour wrote:
> John Dallaway wrote:
>> Hi Bart
>>
>> Bart Veer wrote:
>>
>>
>>> This patch updates all ARM platform HALs to use arm-eabi-gcc instead
>>> of arm-elf-gcc, and removes -mno-short-load-words from platforms that
>>> still used it.
>>
>>
>> Thank you for the check-in.
>>
>> The eCosCentric arm-eabi pre-built toolchains do not include StrongARM
>> multi-libs. AFAIK, users who want to build eCos for these targets will
>> therefore need to either build their own arm-eabi-gcc or revert to
>> CYGBLD_GLOBAL_COMMAND_PREFIX == "arm-elf" and use the older arm-elf-gcc
>> 3.2.1. Can you please let me know what the intention is here so I can
>> mention this in the eCos 3.0 release notes?
> 
> This was discussed before IRL, and I believe until I hear to the 
> contrary that strongarm should probably still work. It just won't be 
> perfectly optimal as it will fall back to the arm7tdmi multilib (the 
> default); but now actually looking at GCC sources, I think it may have 
> only a virtually perceptible effect even then.
> 
> Actually there is one exception that should probably not be arm-eabi 
> which is the AEB target, which is arm7di and so can't work with the new 
> tools. Sorry I should have mentioned that yesterday Bart. Maybe it's 
> worth putting that one back, but it may not be worth even that effort 
> since no-one will be using it... I think it hasn't been sold for going 
> on 10 years now.

... but someone was actually asking about it in the last few months.
Better to try and not break things, if possible, no matter how old.

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