Dennis wrote:
I was trying to build a cross compiler by following the MIPS_port doc
but since I needed MIPS bid endian version instead, I changed their
example of MIPSel into MIPS which seems the correct way in dowloading
binutils and specifying TARGET CPU.
However, after many days of struggling, it appears that the correct
spelling regarded by the crosscompiler for MIPS big endian is actually
MIPSEB instead of MIPS!!!
And that probably produced a lot of my earlier problems. I had to
rename all the names of ld and as files from mips to mipseb to have the
compiler stop complaining.
Can someone tell me why in some areas of fpc, it is MIPS and else MIPSEB?
The first thing I want to point out is that you have to be very careful
with the "triplet" that describes the binutils tools. There's a certain
amount of guesswork involved, but once you've got a candidate there's a
tool in the binutils sources to make sure that it's viable.
As far as mips vs mipseb in the FPC sources are concerned:
-----8<-----
>>> One thing that makes me wonder is how mips and mipsel defines are
>>> related and when to use the 'mips' and when to use 'mipsel'.
>> mips: mipsel and mipseb
>
> Perhaps I was not clear enough, when doing defines for embedded in the
> code should I use:
>
> {$if defined(arm) or defined(avr) or defined(mips)}
>
> or
>
> {$if defined(arm) or defined(avr) or defined(mipsel)}
It seems that Florian was not clear enough either:
- use mipsel if it applies to MIPS Little Endian only
- use mipseb if it applies to MIPS Big Endian only
- use mips if it applies to both MIPS Little and Big endian
----->8-----
Circa 14th May, see
http://lists.freepascal.org/lists/fpc-devel/2013-May/thread.html
I'd remind you that the binaries I sent you were built with triplets
etc. as given on http://wiki.lazarus.freepascal.org/Native_MIPS_Systems
and that they worked here.
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
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