[fpc-devel] Porting FPC to IBM zArch

[Bernd Oppolzer]

Thank you very much.

I succeeded in building a new compiler from the SVN sources,
and it runs successfully for the win32 target.

C:\fpc_test>ppc386 pasform.pas
Free Pascal Compiler version 2.7.1 [2013/07/24] for i386
Copyright (c) 1993-2013 by Florian Klaempfl and others
Target OS: Win32 for i386
Compiling pasform.pas
pasform.pas(746,8) Note: Local variable "CH" not used
pasform.pas(1147,8) Note: Local variable "I" not used
pasform.pas(1411,11) Note: Local variable "EINRUECKSAVE" not used
pasform.pas(1405,8) Note: Local variable "EINRUECKS2" not used
pasform.pas(1981,8) Note: Local variable "I" not used
pasform.pas(118,5) Note: Local variable "INCSTATE" is assigned but never 
used
pasform.pas(121,5) Note: Local variable "KPINDEX" is assigned but never used
Linking pasform.exe
2197 lines compiled, 0.1 sec, 48208 bytes code, 1220 bytes data
7 note(s) issued

and the program works as expected.

Then I built the RTL for linux, which also worked successfully, as far 
as I saw,
but when compiling with -Tlinux, I now get the following message:

C:\fpc_test>ppc386 -Tlinux pasform.pas
Free Pascal Compiler version 2.7.1 [2013/07/24] for i386
Copyright (c) 1993-2013 by Florian Klaempfl and others
Target OS: Linux for i386
Compiling pasform.pas
PPU Loading C:\fpc\rtl\units\i386-linux\system.ppu
PPU Invalid Version 135
Fatal: Can't find unit system used by PASFORM
Fatal: Compilation aborted

that is: the system.ppu seems to be found, but there is something wrong
with the version.

When trying to build the RTL for OS/2 (running make in the os2 subdir of
fpc/rtl), I get the following messages:

C:\fpc\rtl\os2>make
C:/lazarus/fpc/2.6.2/bin/i386-win32/gmkdir.exe -p ../../rtl/units/os2
i386-os2-as -o ../../rtl/units/os2/prt0.o prt0.as
process_begin: CreateProcess((null), i386-os2-as -o 
../../rtl/units/os2/prt0.o p
rt0.as, ...) failed.
make (e=2): Das System kann die angegebene Datei nicht finden.
make: *** [prt0.o] Error 2

apparently, there is no i386-os2-as

when I did the same thing in the linux subdir, it worked (but: see above).

Do I need a special ASSEMBLER to build the OS/2 RTL?

Is it possible to download a pre-built OS/2 RTL?

No need to invest much time in those questions: I already had some
insights in the techniques of cross-compiling ... and in any case I'm 
now able
to build a new compiler from the compiler sources.

Kind regards

Bernd



Am 24.07.2013 14:19, schrieb Sven Barth:
> Am 24.07.2013 14:12, schrieb Bernd Oppolzer:
>> Sorry, I'm sure, this is a very basic question,
>> just to speed up things a little ...
>>
>> when I run the compiler on Windows on my test sources,
>> everythings works fine.
>>
>> Now I wanted to build executables for OS/2 and Linux-386,
>> just to learn more about cross-compile. But the installed compiler-exe
>> (which came with Lazarus) only supports the win32 target.
>>
>> The compiler message is as follows:
>>
>> C:\fpc_test>ppc386 -Tos2 pasform.pas
>> Free Pascal Compiler version 2.6.2 [2013/06/09] for i386
>> Copyright (c) 1993-2012 by Florian Klaempfl and others
>> Target OS: OS/2
>> Compiling pasform.pas
>> Fatal: Can't find unit system used by PASFORM
>> Fatal: Compilation aborted
>>
>> Same goes for -Tlinux
>>
>> Of course, I have to build a new compiler. Or: do I misinterpret
>> the error message?
>>
>> I downloaded the development tree using svn.
>>
>> What is the easiest way to build a new compiler, and:
>> will it be possible to build a compiler that is able to build
>> different targets at the same time?
>>
> The problem is not the compiler. Each compiler can compile for each 
> target of the supported platform. E.g. an i386-win32 compiler can also 
> compile for i386-os2 and i386-linux. It can not however compile for 
> e.g. x86_64-win64 or powerpc-linux.
> What is not provided by default for other targets is the RTL (and FCL 
> and packages) which the compiler needs to compile programs. These you 
> need to create by yourself, but for this you'll also need the 
> according binutils and depending on the target platform and your 
> program also libraries from the platform (e.g. when you compile for 
> Linux systems). Cross compiling for different combinations is 
> described here: http://wiki.freepascal.org/Cross_compiling
> In the simplest cases the approach mentioned for Win32 -> Win64 is 
> sufficient, but you should also take a look at the BuildFAQ: 
> http://wiki.freepascal.org/buildfaq
>
> Regards,
> Sven
> _______________________________________________
> fpc-devel maillist  -  fpc-devel at lists.freepascal.org
> http://lists.freepascal.org/mailman/listinfo/fpc-devel
>


-- 
Bernd Oppolzer
---------------------------------------------------------------
*Oppolzer-Informatik
* Dipl. Inf. Bernd Oppolzer
Bärenhofstraße 23
70771 Leinfelden-Echterdingen
---------------------------------------------------------------
Tel.: +49 711 2272522
priv.: +49 711 7949590
eMail: bernd.oppolzer at t-online.de <mailto:bernd.oppolzer at t-online.de>
---------------------------------------------------------------
Für Umsatzsteuerzwecke:
SteuerNr.: 97 076 / 29921
USt-ID-Nr.: DE 147 700 393
---------------------------------------------------------------
Jubiläumsjahr 2013:
30 Jahre Oppolzer-Informatik

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freepascal.org/pipermail/fpc-devel/attachments/20130724/0f7ea013/attachment.html>