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Fpc should be compiled with -dFPC-ARMEL in OPT, not CROSSOPT<br>
<br>
Den 26-08-2010 07:10, Nataraj S Narayan skrev:
<blockquote
cite="mid:AANLkTikBMrAQxAqAisWd6K3s0Ny=+kSakms=YWpYG-DJ@mail.gmail.com"
type="cite">Hi Jonas<br>
<br>
<br>
I tried a very elementary code on arm-linux-uclibc, compiled
using "ppcrossarm -TLinux -darm ttt3.pas -CfSOFT -XParm-linux-
-XR/cdrom"<br>
<br>
program kuraj;<br>
begin<br>
writeln('Hooua');<br>
end.<br>
<br>
<br>
The asm listing using -al is here: - <a moz-do-not-send="true"
href="http://pastebin.com/CG9i0x3z">http://pastebin.com/CG9i0x3z</a><br>
<br>
It dont work in the normal EABI kernel but works on OABI compat
one.<br>
<br>
I got ppcrossarm using :- <br>
gmake distclean crosszipinstall CPU_TARGET=arm OS_TARGET=linux
CROSSOPT='-CfSOFT -darm -dFPC-ARMEL -gl'
FPC=/usr/local/lib/fpc/2.5.1/ppc386<br>
<br>
<br>
warm regards<br>
<br>
Nataraj <br>
<br>
<div class="gmail_quote">
On Fri, Aug 20, 2010 at 6:51 PM, Jonas Maebe <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:jonas.maebe@elis.ugent.be">jonas.maebe@elis.ugent.be</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid
rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left:
1ex;">
<div class="im"><br>
On 20 Aug 2010, at 15:00, Nataraj S Narayan wrote:<br>
</div>
<blockquote class="gmail_quote" style="border-left: 1px solid
rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left:
1ex;">
<div class="im">
On Fri, Aug 20, 2010 at 2:38 PM, Jonas Maebe <<a
moz-do-not-send="true"
href="mailto:jonas.maebe@elis.ugent.be" target="_blank">jonas.maebe@elis.ugent.be</a>>wrote:<br>
</div>
<blockquote class="gmail_quote" style="border-left: 1px
solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex;
padding-left: 1ex;">
You probably need the "nostackframe" directive, or remove
the "mov pc,lr"
<div class="im"><br>
at the end.<br>
<br>
Compile the code with -al, compile equivalent Pascal
code with -al and look<br>
at the differences in the generated ".s" files.<br>
</div>
</blockquote>
<br>
<div class="im">
I changed the kernel to old 2.6.30 and the code works on
the Arm target!<br>
<br>
That kernel has been compiled with CONFIG_OABI_COMPAT=y.
Newer kernels dont<br>
show this option, only EABI.<br>
<br>
Also my ppcrossarm is :-<br>
<br>
Free Pascal Compiler version 2.5.1 [2010/07/28] for arm<br>
Copyright (c) 1993-2009 by Florian Klaempfl<br>
<br>
What do you make of it?<br>
</div>
</blockquote>
<br>
That you did not reply to the suggestions I made in my
previous message. Please say what you did and what happened,
even if it didn't work. It's not nice to spend time on trying
to help someone, if that person then simply ignores what you
write and replies with something completely different.<br>
<br>
The EABI requires that the stack is always aligned to 8 bytes
on entry/exit of subroutines, and you probably mess up the
alignment with the manually inserted return instruction.<br>
<br>
Also, make sure that you compiled an EABI cross-compiler
(ensure that -dFPC_ARMEL is part of the OPT setting of the
"make" invocation used to compile FPC).
<div>
<div class="h5"><br>
<br>
<br>
Jonas<br>
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</div>
</blockquote>
</div>
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