It looked more like the stack got messed up, for me it crashed after the
second (if I remember correctly) procedure was called. I can dig into
this on Sunday evening, after returning to my home.
Michael
Am 10.01.14 14:29, schrieb Pierre Free Pascal:
-----Message d'origine-----
De : fpc-pascal-boun...@lists.freepascal.org [mailto:fpc-pascal-
boun...@lists.freepascal.org] De la part de Michael Ring
Envoyé : vendredi 10 janvier 2014 13:40
À : FPC-Pascal users discussions
Objet : Re: [fpc-pascal] ARM Linux crosscompiler: compiles but...
executable gives segmentation fault
I think this is an ARMV6 specific Problem, I also realized while
debugging on embedded target that it does not work anymore, same code
compiled for ARMV7 debugs (and runs) just fine...
Until now I did not find the time to search for the revision that broke
armv6m.
Michael
Am 10.01.14 13:27, schrieb Reinier Olislagers:
Hi all,
For the Dutch among us: de dag die je wist dat zou komen...
Thanks to earlier help I got to build an ARM Linux cross compiler
module
in fpcup which even compiles fpcup itself (both using trunk and
stable
starting compiler):
opt="-fPIC -dFPC_ARMHF"
crossopt="-CpARMV6 -CaEABIHF -CfVFPV2"
fpc -g -gl -Tlinux -Parm simple.lpr
Question: should I have compiled with -fPIC?
Uploaded resulting executable
http://ubuntuone.com/0y3yXGcU8fEXR6OTMyvfGN
The program:
program simple;
begin
writeln('hello');
end.
Relevant fpc.cfg snippet:
#IFDEF CPUARM
#IFDEF LINUX
-CpARMV6
-CaEABIHF
-CfVFPV2
-FDC:\development\cross\bin\arm-linux\
-XParm-linux-
-Xd
-FlC:\development\cross\lib\arm-linux\
-Xr/usr/lib
#ENDIF
#ENDIF
However, running the resulting binary on my virtual Raspbian fails
with
a segmentation fault. Running under gdb gives
(gdb) run
Starting program: /root/simple
Program received signal SIGSEGV, Segmentation fault.
0x0002b6e4 in
SYSTEM_$$_ARRAYSTRINGTOPPCHAR$array_of_ANSISTRING$LONGINT$$PPCHAR ()
Maybe it is just using an unsupported instruction?
what does "x /10i $pc" return?
Pierre Muller
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