Hello,

I tried to create an Hello World program in OpenMoko (after creating arm fpc). When I try to compile it, ld gives the following error message:

/usr/bin/ld: ERROR: Source object
/usr/lib/fpc/2.3.1/units/arm-linux/rtl/system.o has EABI version 0, but target hello has EABI version 4

I compile it as follows:
/usr/lib/fpc/2.3.1/ppcarm -O- hello.pp

Should I define another flag as well ?

Thanks,
Ido

2009/4/6 ik :

have you built the compiler and rtl with -dFPC_ARMEL?

henry

See http://bugs.freepascal.org/view.php?id=13454 for some flags you have to use, and a patch that you can try. And note that ARMEL/EABI is very much untested.

Jonas

No, doing it now

Thanks

Ido

I can see that, now I have segfult ... Is there a way to do a real cross compile, that is to be in a normal environment and just make the result set to ARM EABI ?

And any of you wish, I can give ssh access to my Moko (when it is booted to the microsd) to test FPC on ARM EABI better, or help me understand how to test it myself, and might even fix/add things.

Thanks,
Ido

Hi,

i also try to get free pascal running on my freerunner. i needed many tries to get a running ppcarm for my device. (In reality i didn't know why it worked in the last run ... but it did, and so i don't ask :) )

now i let the freerunner recompile the hole fpcbuild. But that could take some time. ... you know how fast our devices are :) i hope that all things will work well after that .

i used these compiler options : OPT="-dFPC_ARMEL -O- -dFPC_ABI_EABI" NOGDB=1

i tell you if it works or not.
it could just be hours from now :)

Have you cross compiled the hole free pascal or just the ppcarm?

you should be able to crosscompile the "hello" programm by using the "crossppcarm" compiler on your normal machine.
(And don't forget to use "-dFPC_ARMEL -O- -dFPC_ABI_EABI".)

Beni

fyi:

when i build the fpc sources i get a error message (see below). The make process tries to use an old not functional data2inc programm. Why didn't the make process use the new compiled one?

I deleted all old bin files and restarted the compiler. (i hope he take the new data2inc programm now)

it stopped with errors .... the data2inc programm seems to be build not early enough.
i copyed corsscompiled data2inc, etc. programms on my device.

is started the compiling again. .... i could tell you more in a few hours.

Beni

/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/compiler/ppcarm -Ur -Xs -O2 -n -vwni -Fu..
-Fu/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/rtl/units/arm-linux -FE. -FUunits/arm-linux -dFPC_ARMEL -O- -dFPC_ABI_EABI -darm -dRELEASE fpcsubst.pp
Target OS: Linux for ARMEL
Compiling fpcsubst.pp
Compiling usubst.pp
usubst.pp(56,5) Note: Local variable "I" not used
Assembling usubst
Writing Resource String Table file: fpcsubst.rst
Assembling fpcsubst
Linking ./fpcsubst
350 lines compiled, 16.7 sec
1 note(s) issued
/usr/local/bin/data2inc -b -s fpinc.cfg fpcfg.inc fpcfg make[5]: *** [fpcfg.inc] Illegal instruction
make[5]: Leaving directory
`/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/compiler/utils' make[4]: *** [utils_all] Error 2
make[4]: Leaving directory `/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/compiler' make[3]: *** [cycle] Error 2
make[3]: Leaving directory `/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/compiler' make[2]: *** [compiler_cycle] Error 2
make[2]: Leaving directory `/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc' make[1]: *** [build-stamp.arm-linux] Error 2
make[1]: Leaving directory `/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc' make: *** [fpcsrc/build-stamp.arm-linux] Error 2

Benedikt Schindler wrote

it stopped with errors .... the data2inc programm seems to be build not early enough.

It should simply not be necessary. The fpinc.cfg file in svn is not newer than the fpcfg.inc file, so fpcfg.inc should not be regenerated by the Makefile. Maybe you copied all files using a plain copy operation and fpinc.cfg was copied after fpcfg.inc? If so, you can solve the problem with "touch compiler/utils/fpcfg.inc"

Jonas

thx.

yes it was a plain copy.
it also worked with the crosscompiled data2inc programm.

Beni

magic hands ;) ... no, i compiled many many different versions and no one ever worked.

working for now is fpcbuild_2.3.x (19.03.2009)

binutils :
./configure --prefix=/opt/crossbinutils --target=arm4tl-unknown-linux

fpc make :
make clean all OS_TARGET=linux CPU_TARGET=arm
BINUTILSPREFIX=/opt/crossbinutils/bin/arm4tl-unknown-linux- OPT="-dFPC_ARMEL -O- -dFPC_ABI_EABI" CROSSOPT="-dFPC_ARMEL -O-" FPC=/usr/bin/ppc386 NOGDB=1

maybe it is the CROSSOPT option that make it work.. i don't know. But i still have different problems with compiling the whole fpc on the freerunner.

cu Beni

P.S.: did you have a "/etc/ld.so.conf" on your device?

Hi,

i managed to crosscompile a ppcarm for the openmoko device. then i tried to compile the fpc direct on the device. After a long time where everything looks fine he abborted compiling with an error (see below)

any ideas?

i also don't know, if it is a problem that my distribution has no "/etc/ld.so.conf"
there are always these lines in the output :
"grep: /etc/ld.so.conf: No such file or directory"

thx Beni

/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/compiler/ppcarm -XX -CX -Ur -Xs -O2 -n -Fu/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/rtl/units/arm-linux -Fu/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/packages/x11/units/arm-linux -Fu/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/packages/opengl/units/arm-linux -FE. -FUunits/arm-linux -Fl/usr/lib/gcc/arm-angstrom-linux-gnueabi/4.1.2 -dFPC_ARMEL -O- -dFPC_ABI_EABI -darm -dRELEASE src/gtkgl/gtkglarea.pp make[5]: Leaving directory
`/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/packages/gtk1' make[4]: Leaving directory
`/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/packages/gtk1' make -C gtk2 smart
grep: /etc/ld.so.conf: No such file or directory
make[4]: Entering directory
`/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/packages/gtk2' make all LINKSMART=1 CREATESMART=1
grep: /etc/ld.so.conf: No such file or directory
make[5]: Entering directory
`/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/packages/gtk2' /bin/mkdir -p units/arm-linux
/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/compiler/ppcarm -XX -CX -Ur -Xs -O2 -n -Fusrc -Fusrc/glib -Fusrc/atk -Fusrc/pango -Fusrc/gtk+/gdk-pixbuf -Fusrc/gtk+/gdk -Fusrc/gtk+/gtk -Fusrc/libglade -Fusrc/gtkglext -Fusrc/gtkext -Fusrc/gtk2x11
-Fu/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/rtl/units/arm-linux -Fu/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/packages/x11/units/arm-linux -Fisrc/gtk2x11/include -FE. -FUunits/arm-linux
-Fl/usr/lib/gcc/arm-angstrom-linux-gnueabi/4.1.2 -dFPC_ARMEL -O- -dFPC_ABI_EABI -darm -dRELEASE src/buildgtk2.pp
gtk2.pas(165) Error: Can't call the assembler, error -1 switching to external assembling
gtk2.pas(165) Fatal: There were 2 errors compiling module, stopping Fatal: Compilation aborted
make[5]: *** [src/buildgtk2.ppu] Error 1
make[5]: Leaving directory
`/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/packages/gtk2' make[4]: *** [fpc_smart] Error 2
make[4]: Leaving directory
`/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/packages/gtk2' make[3]: *** [gtk2_smart] Error 2
make[3]: Leaving directory `/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc/packages' make[2]: *** [packages_smart] Error 2
make[2]: Leaving directory `/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc' make[1]: *** [build-stamp.arm-linux] Error 2
make[1]: Leaving directory `/media/mmcblk0p3/fpcbuild-2.3.x/fpcsrc'

Maybe it runs out of memory? The gtk2 unit is quite big.

Jonas

2009/4/7 Benedikt Schindler :

any reason why you are trying to build fpc natively? this wastes a lot of time. you can just use the openmoko toolchain and cross compile everything.

henry

yes,

because all things i tryed to crosscompile ended up in a "illegal instruction" message.( Or in no messages at all. ) so i wanted to see what happens when i try to compile the fpc on the device.

Beni

your right.
i freed some memory and then it compiled without problems.

thx to all.
Beni

Hi,

i am comming back to the beginning of this thread and back to the real problem :)
i now found out, that if i use my crosscompiled version of FPC i get also this EABI version error.
if i use my FPC that i have compiled direct on the device, i have no error messages.

so i think there is a problem with the crosscompiling and the EABI option.

Beni

hi,

i don't know if you still wonna install a full fpc on your freerunner. but if it is so, you could download a working version from this place :

http://www.my-distribution.org/files/fpc-2.3.x-arm-20090319.tar.gz (all files in a subdirectory called "fpc-2.3.x-arm" ) http://www.my-distribution.org/files/fpc-2.3.x-arm-20090319-nodir.tar.gz (all files without subdirectory for installing in /usr/local/)

cu
Beni

---------------------------------------
installattion in /usr/locoal
----------------------------------------
cd /usr/local
wget
http://www.my-distribution.org/files/fpc-2.3.x-arm-20090319-nodir.tar.gz tar -xvzf fpc-2.3.x-arm-20090319-nodir.tar.gz
ln -s /usr/local/lib/fpc/2.3.1/ppcarm /usr/local/bin/ppcarm /usr/local/lib/fpc/2.3.1/samplecfg /usr/local/lib/fpc/2.3.1 /etc

---------------------------------------
Installation in subfolder /usr/local/fpc-2.3.x-arm/ ----------------------------------------
cd /usr/local
wget http://www.my-distribution.org/files/fpc-2.3.x-arm-20090319.tar.gz tar -xvzf fpc-2.3.x-arm-20090319.tar.gz
ln -s /usr/local/fpc-2.3.x-arm/lib/fpc/2.3.1/ppcarm /usr/local/bin/ppcarm /usr/local/fpc-2.3.x-arm/lib/fpc/2.3.1/samplecfg
/usr/local/fpc-2.3.x-arm/lib/fpc/2.3.1 /etc

[...]

I crosssompiled it with the options i wrote in my previous mail.

make clean all OS_TARGET=linux CPU_TARGET=arm
BINUTILSPREFIX=/opt/crossbinutils/bin/arm4tl-unknown-linux- OPT="-dFPC_ARMEL -O- -dFPC_ABI_EABI" CROSSOPT="-dFPC_ARMEL -O-" FPC=/usr/bin/ppc386 NOGDB=1

After that , the ppcarm is working.

But if you try to compile a helloworld.pas; you get your well known eabi-Error message.
So i used the working ppcarm to compile the whole FPC on the freerunner. (It just needs 2hours ;) )
But now i didn't need the crosscompile params, so i just used these options:

make clean all OPT="-dFPC_ARMEL -O- -dFPC_ABI_EABI" FPC=/opt/crosscompiledppcarm

now we have a working version, but the "make install" fails. (output : "./install : Error permission denied ")
So i copied all compiled data back on my i386 computer. i copied from the previous crosscompiling the ppcrossarm into the "fpcsrc/compiler/" directory.
And run the installation routine on the i386 machine.

make install PP=/opt/armlinux/fpcbuild/fpcsrc/compiler/ppcrossarm PREFIX=/usr/local/fpc-2.3.x-arm OS_TARGET=linux CPU_TARGET=arm BINUTILSPREFIX=/opt/crossbinutils/bin/arm4tl-unknown-linux- OPT="-dFPC_ARMEL -O- -dFPC_ABI_EABI" CROSSOPT="-dFPC_ARMEL -O-" NOGDB=1

now we have a "small" folder we could just push back on the freerunner. (thats where the tar-files are comming in )
after that, we just need the final configuration steps.

and here we are, we could compile our heloworld.pas

.... that means, if you confirm that it also works by you ....

Beni