Re: Proper cpu-vendor-os triplet?

[Gedare Bloom <gedare at rtems dot org>]

On Tue, Oct 21, 2014 at 10:02 AM, Joel Sherrill
<joel.sherrill@oarcorp.com> wrote:
>
> On 10/21/2014 8:03 AM, Freddie Chopin wrote:
>> Hello!
>>
>> I know this list might not be a perfect fit for my question, but I hope
>> someone would share some knowledge with me.
>>
>> I'm developing an open-source RTOS for higher-end microcontrollers (*).
>> My plan is to have it as a proper OS for newlib and GCC - like RTEMS
>> (for example). I'm having a hard time deciding what should be the proper
>> triplet of such toolchain for ARM chips, because either everyone does
>> things differently, or I don't understand something... For example for
>> "bare metal ARM" the triplet is "arm-none-eabi", so I assume that this
>> should be actually read as "arm" cpu, "none" vendor, "none" OS (missing)
>> and "eabi" ABI. Or maybe it's the "vendor" that is missing? In newlib's
>> configure.host file the OS is taken from the third element in the
>> triplet, for example:
>>
>>> case "${host}" in
>>>   *-*-cygwin*)
>>>     posix_dir=posix
>>>     stdio64_dir=stdio64
>>>     xdr_dir=xdr
>>>     ;;
>>>   *-*-netware*)
>>>     signal_dir=
>>>     sys_dir=netware
>>>     ;;
>>>   *-*-rtems*)            # generic RTEMS support
>>>     sys_dir=rtems
>>>     posix_dir=posix
>>>     unix_dir=unix
>>>     ;;
>>>   *-*-tirtos*)
>>>     sys_dir=tirtos
>>>     have_crt0="no"
>>>     ;;
>> On the other hand linaro's GCC toolchain for ARM processors is named
>> "arm-linux-gnueabihf", so I assume that in this case the "vendor" field
>> is missing...
>>
>> So I wonder if I should name the toolchain "arm-none-distortos-eabi",
>> "arm-distortos-eabi", "arm-none-distortos", "arm-distortos" or maybe
>> something else?
> IMO arm-distortos is what the user should configure.
>
Normally the vendor name is omitted if it is empty. -Gedare

> Internally, the canonical name will be arm-none-distortos.
>> Thx in advance!
>>
>> Regards,
>> FCh
>>
>> (*) - in case anyone is interested - the repo is here -
>> https://github.com/DISTORTEC/distortos
>>
>
> --
> Joel Sherrill, Ph.D.             Director of Research & Development
> joel.sherrill@OARcorp.com        On-Line Applications Research
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