FPC program can't load a FPC shared library on armhf-linux (RPi)

Original Reporter info from Mantis: papelhigienico

• Reporter name: Fabio Luis Girardi

Description:

A program built in FPC can't load a shared library built in FPC, both built to armhf for Raspberry Pi. Tested trying to load the shared library dynamically and statically. When tried to load the shared library dynamically, I tried two ways, one using dynlibs unit and other using dl unit, both resulting the same error.

Tested with various FPC versions:

1. FPC 2.6.0 from Raspbian wheezy 2014-06-20 repository
   
2. FPC 2.7.1 from http://freepascal.thaddy.co.uk/raspberrypi.html on Raspbian Wheezy 2014-06-20
   
3. FPC 2.7.1 trunk on Raspbian wheezy 2014-06-20 built using the FPC 2.7.1 from item 2.

-> On both Raspbian settings, dlerror() says that can't load the shared library.

4. FPC 2.7.1 from http://freepascal.thaddy.co.uk/raspberrypi.html on latest ArchLinux

-> On ArchLinux, dlerror() says that a Internal Error happened.

On Raspbian, using configurations 1, 2 and 3, a program built in FPC can load a shared library built in GCC without errors.

On Raspbian 2013-05-29-wheezy-ARMEL, program and shared library works fine.

Steps to reproduce:

Compile the attached file on a armhf and run the program "program1".

The gcc library was built with this command line:

gcc -c -Wall -Werror -fpic teste.c
gcc -shared -o libteste.so teste.o

FPC Program and shared library was built with this:

fpc teste.fpr
fpc program1.fpr

Additional information:

On a x86_64-linux and i386-linux, the attached example compile and works fine.

Mantis conversion info:

• Mantis ID: 26454
• OS: linux
• OS Build: latest
• Build: 2.7.1
• Platform: armhf
• Version: 2.6.4
• Fixed in version: 3.3.1
• Fixed in revision: 43162 (#29bdbdba)