Hi Jonas
I tried a very elementary code on arm-linux-uclibc, compiled using "ppcrossarm -TLinux -darm ttt3.pas -CfSOFT -XParm-linux- -XR/cdrom" program kuraj; begin writeln('Hooua'); end. The asm listing using -al is here: - http://pastebin.com/CG9i0x3z It dont work in the normal EABI kernel but works on OABI compat one. I got ppcrossarm using :- gmake distclean crosszipinstall CPU_TARGET=arm OS_TARGET=linux CROSSOPT='-CfSOFT -darm -dFPC-ARMEL -gl' FPC=/usr/local/lib/fpc/2.5.1/ppc386 warm regards Nataraj On Fri, Aug 20, 2010 at 6:51 PM, Jonas Maebe <jonas.ma...@elis.ugent.be>wrote: > > On 20 Aug 2010, at 15:00, Nataraj S Narayan wrote: > >> On Fri, Aug 20, 2010 at 2:38 PM, Jonas Maebe <jonas.ma...@elis.ugent.be >> >wrote: >> >>> You probably need the "nostackframe" directive, or remove the "mov pc,lr" >>> >>> at the end. >>> >>> Compile the code with -al, compile equivalent Pascal code with -al and >>> look >>> at the differences in the generated ".s" files. >>> >> >> I changed the kernel to old 2.6.30 and the code works on the Arm target! >> >> That kernel has been compiled with CONFIG_OABI_COMPAT=y. Newer kernels >> dont >> show this option, only EABI. >> >> Also my ppcrossarm is :- >> >> Free Pascal Compiler version 2.5.1 [2010/07/28] for arm >> Copyright (c) 1993-2009 by Florian Klaempfl >> >> What do you make of it? >> > > 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. > > 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. > > 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). > > > > Jonas > _______________________________________________ > fpc-pascal maillist - fpc-pascal@lists.freepascal.org > http://lists.freepascal.org/mailman/listinfo/fpc-pascal >
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