[fpc-devel] Building and running FPC natively on ARM under Debian "Lenny"

[Mark Morgan Lloyd]

Jonas Maebe wrote:
> On 20 Aug 2010, at 17:47, Mark Morgan Lloyd wrote:
> 
>> Is what I am doing reasonable, or should I- as an example- be using 2.4.0 to rebuild itself with -CaEABI before trying to go any further?
> 
> It's best to compile 2.4.0 with -dFPC_ARMEL (no need to use -CaEABI) and use the resulting compiler.

Thanks Jonas. It's worth noting that the hardware is an NLSU2 "Slug", so 
uname -a reports

Linux ... 2.6.26-2-ixp4xx #1 Mon Jun 21 20:07:59 UTC 2010 armv5tel GNU/Linux

I've got some meatier development boards but they came with CE and I've 
not found how to get Linux onto them yet.

If I use 2.2.2 to build an initial 2.4.0 like

make 'NOGDB=1' 'OPT=-CfSOFT' all
make 'OPT=-CfSOFT' install

I get something that can compile an app provided that I still give it 
-Cf. If I then try to use that to recompile itself with

make 'NOGDB=1' 'OPT=-dFPC_ARMEL' all

I get

/usr/local/bin/ppcarm -Ur -Ur -Xs -O2 -n -Fi../inc -Fi../arm -Fi../unix 
-Fiarm -FE. 
-FU/usr/local/src/fpc/fpcbuild-2.4.0/fpcsrc/rtl/units/arm-linux 
-dFPC_ARMEL -darm -dRELEASE -Us -Sg system.pp
thread.inc(332,10) Warning: Function result does not seem to be set
thread.inc(344,11) Warning: Function result does not seem to be set
thread.inc(354,11) Warning: Function result does not seem to be set
thread.inc(359,11) Warning: Function result does not seem to be set
thread.inc(364,11) Warning: Function result does not seem to be set
thread.inc(393,10) Warning: Function result does not seem to be set
thread.inc(412,11) Warning: Function result does not seem to be set
thread.inc(436,11) Warning: Function result does not seem to be set
thread.inc(442,11) Warning: Function result does not seem to be set
thread.inc(483,10) Warning: Function result does not seem to be set
/usr/local/src/fpc/fpcbuild-2.4.0/fpcsrc/rtl/units/arm-linux/system.s: 
Assembler messages:
/usr/local/src/fpc/fpcbuild-2.4.0/fpcsrc/rtl/units/arm-linux/system.s:14465: 
Error: selected processor does not support `rfs r0'
..
/usr/local/src/fpc/fpcbuild-2.4.0/fpcsrc/rtl/units/arm-linux/system.s:56074: 
Error: selected processor does not support `stfd f0,[r5]'
system.pp(373) Error: Error while assembling exitcode 1
system.pp(373) Fatal: There were 2 errors compiling module, stopping
Fatal: Compilation aborted
make[7]: *** [system.ppu] Error 1
make[7]: Leaving directory 
`/usr/local/src/fpc/fpcbuild-2.4.0/fpcsrc/rtl/linux'

What should I be doing here- using both -Cf and -d?

-- 
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]