[fpc-pascal] inline asm in fpc progran

Nataraj S Narayan natarajsn at gmail.com
Sat Aug 21 06:44:13 CEST 2010


I was expecting exactly this response from you.

I did'nt ask you to volunteer to help  me. If you don't find time, or feel
it wasting your time, let somebody else do it. Issue is very much real and i
tried out your suggestions without any use.



"Someday they gonna tell ya there was this clone of FreePascal,
And it was called Delphi....

Till then, we shan't be cocky and vain"

On Fri, Aug 20, 2010 at 6:51 PM, Jonas Maebe <jonas.maebe at 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.maebe at 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
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