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Subject: Re: djgpp to Linux ARM cross binutils
From: "Juan Manuel Guerrero (juan DOT guerrero AT gmx DOT de) [via djgpp AT delorie DOT com]" <djgpp AT delorie DOT com>
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On Monday, September 28, 2015 at 9:08:01 PM UTC+2, Wiktor S. wrote:
> > The issue reported by user cannot be reproduced on any system where I
> > can check.
> > It may be a bash issue or a sed issue, but without accurate
> > knownledge about
> > the user's system it becomes impossible to reproduce and to debug.
> 
> I made a clean install of DJGPP from all the files you have listed, and 
> everything compiles.

Well, this is the most important outcome of the experiment to me. ;-)
It shows that it is possible build binutils from the distributed DJGPP port
for other people than me.  Neither less it remains a fact that it is necessary
to have some kind of Windows OS.  All my intents to use plain DOS (aka either
DOS 7 from Win98SE or MSDOS 6.22 or FreeDOS) have miserably failed.  The worst
seems to be FreeDOS but in the end they all fail and are useless.  Here a lot of work needs to be done if plain DOS shall still be of some use to compile contemporary GNU software.


> Although it does not work.
> 
> 'as' compiles a bit of ARM assembly, the resulting .o looks like an ELF, but 
> is not recognized by ld nor objdump.
> 
> perhaps this is a makefile or #ifdef problem and some wrong constants are 
> picked.
> 
> I won't have time to pursue this, at least for now.
> 
> "does not work due to bugs" is the outcome of the experiment :-)

IMHO this is not surprising.  Theoretically for every 2 systems A and B supported
by binutils it should be possible to create a cross-compilers but this implies continuous
support for both systems by the maintainers and/or users of them but this is certainly no
longer true for an archaic system like MSDOS/DJGPP.  We can consider our self fortunate
that they have still not dropped DJGPP support as they have done for other old systems.

Here you are alone.  I do not have access to an ARM system and I am not familiar at
all with it with ARM assembler.  I was really surprised that someone ever tried to
create a DJGPP-to-something cross-compiler at all.

Regards,
Juan M. Guerrero