Hi All,

I try to compile my program on Pi, with the official FPC 2.6.4 for arm linux, but get the following error:

/usr/lib/fpc/2.6.4/units/arm-linux/rtl/cprt0.o: In function `_haltproc_eabi':
(.text+0x88): undefined reference to `_fini'
/usr/lib/fpc/2.6.4/units/arm-linux/rtl/cprt0.o: In function `_haltproc_eabi':
(.text+0x90): undefined reference to `_init'

Is there anything missing from my FPC installation?

TIA for any hint.

Xiangrong Fang wrote

I try to compile my program on Pi, with the official FPC 2.6.4 for arm linux,

Official from where: from your Raspberry Pi repository, or downloaded from our website? In the latter case: there are approximately a thousand different variants of ARM Linux (*), and your Raspberry Pi is using a different one than the one for which our FPC 2.6.4 was compiled. If you are using the one from your Raspberry Pi repository, it should work.

If you want more information, everything you may ever want to know about what could go wrong with compiling for Raspberry Pi has been discussed in http://lists.freepascal.org/fpc-pascal/2015-August/thread.html#44987

You can also try FPC 3.0 rc1 for Raspberry Pi, as mentioned in http://lists.freepascal.org/fpc-pascal/2015-September/thread.html#45162

Jonas

(*) this may be a slight exaggeration

To build FPC programs on linux one generally needs a variant of libc-dev, which is not part of FPC itself.
The package you need might be libc6-dev, or some other combination of 'libc' and 'dev'.

Please post the solution if/when you find it for the benefit of others. This same question seems to keep poping up on this list.

Regards,
Peter

You mean like I did [checks] on the 31st?
http://lists.freepascal.org/pipermail/fpc-pascal/2015-August/045157.html

And that was without any particular additions, other than what came with Raspbian 2014 as standard; Raspbian 2015 doesn't need most of those options (i.e. either miss out the -FL and -Fl options, or follow Martin's procedure).

The symbols the OP is missing are defined in crti.o Without further information from him, its impossible to know whether the problem is that
1) crti.o is not installed (its libc..dev not FPC)
2) The -Fl option does not use the right path for the system in use.

I would suggest the following;
try the command
ls /usr/lib/**/crti.o

If it works, use the given path for -Fl (as per the links already given in this thread.
If it does not work, install the libc package that contains crti.o, and repeat the test.

Regards,
PB

I downloaded arm linux distribution from freeepascal website (sourceforge). So, I should get it work by fixing crti as suggested by PB, or I shall get the compiler from Pi website as suggested by Jonas?

2015-09-15 19:11 GMT+08:00 Peter :

Xiangrong Fang wrote

I downloaded arm linux distribution from freeepascal website (sourceforge). So, I should get it work by fixing crti as suggested by PB, or I shall get the compiler from Pi website as suggested by Jonas?

You don't get it from the Pi website, but by using the package manager of your linux distribution (apt).

The version from the FPC website is not appropriate for your Linux distribution, as it is for ARMEL and you have ARMHF.

Jonas

It would be useful to see the output of these two commands

grep Fl /etc/fpc.cfg
ls /usr/lib/**/crti.o

Jonas knows a lot more about FPC than I do!

Regards,
PB

The version on the FPC website is an ARMEL version, so it will look for the ARMEL version of crti.o (in /usr/lib/arm-linux-gnueabi).

Jonas

Hi Peter,

~ $ grep FI /etc/fpc.cfg
# nested #IFNDEF, #IFDEF, #ENDIF, #ELSE, #DEFINE, #UNDEF are allowed # -d is the same as #DEFINE
#DEFINE NEEDCROSSBINUTILS

~ $ ls /usr/lib/**/crti.o
/usr/lib/arm-linux-gnueabihf/crti.o

Thanks!

2015-09-15 20:06 GMT+08:00 Peter :

I asked on the list before. The version shipped with Pi is 2.6.0, and is said to be very buggy, I need version 2.6.4, so I downloaded from official site.

2015-09-15 19:52 GMT+08:00 Jonas Maebe :

Another problem is, as I downloaded the wrong version and ran its install.sh (as root), how can I uninstall it?

Thanks!

2015-09-16 9:29 GMT+08:00 Xiangrong Fang :

Jonas pointed out to me when I went through this a couple of weeks ago that fpc.cfg isn't used while FPC is being built.

See the earlier thread.

Then you could try compiling your program with the switch -Fl /usr/lib/arm-linux-gnueabihf

{Note its a lower case l not an upper case I (as per your grep!) after the -F}

You MIGHT get a bit farther. However, the real problem though, as Jonas explained, is you have an ARMEL compiler but an ARMHF system.

You need to download, or build yourself, an ARMHF compiler. Please follow the links in Jonas's first post here. http://lists.freepascal.org/fpc-pascal/2015-September/045230.html

Regards,
PB