[syslinux] Weird ldlinux loading trouble

[Erwan Velu]

Hi,

I'm currently on elflink branch with commit 52443dc7dc5a203d053b70e870e6b83986ebb530
I did a make spotless before the following problem.
If I do a make inside com32/ my hdt.c32 is working properly.
If I do a make inside com32/hdt/ my hdt.c32 is not working and fails with
Failed to load ldlinux.c32

To to my tests, I use the following command
qemu-kvm -net nic -net user -boot n -tftp /home/erwan/pxe/ -bootp /pxelinux.0 -serial stdio

/home/erwan/pxe is like the following :
[erwan at localhost init (debian-dev2)]$ ls -al /home/erwan/pxe/
total 12
drwxr-xr-x  3 erwan erwan 4096 févr.  6 05:20 ./
drwxr-xr-x 67 erwan erwan 4096 févr.  6 19:55 ../
lrwxrwxrwx  1 erwan erwan   39 févr.  6 05:07 hdt.c32 -> /home/erwan/Devel/hdt/com32/hdt/hdt.c32*
lrwxrwxrwx  1 erwan erwan   55 févr.  6 05:05 ldlinux.c32 -> /home/erwan/Devel/hdt/com32/elflink/ldlinux/ldlinux.c32*
lrwxrwxrwx  1 erwan erwan   44 févr.  6 05:06 libcom32.c32 -> /home/erwan/Devel/hdt/com32/lib/libcom32.c32*
lrwxrwxrwx  1 erwan erwan   45 févr.  6 05:06 libgpl.c32 -> /home/erwan/Devel/hdt/com32/gpllib/libgpl.c32*
lrwxrwxrwx  1 erwan erwan   53 févr.  6 05:06 libmenu.c32 -> /home/erwan/Devel/hdt/com32/cmenu/libmenu/libmenu.c32*
lrwxrwxrwx  1 erwan erwan   47 févr.  6 05:20 libutil.c32 -> /home/erwan/Devel/hdt/com32/libutil/libutil.c32*
lrwxrwxrwx  1 erwan erwan   37 févr.  6 05:04 pxelinux.0 -> /home/erwan/Devel/hdt/core/pxelinux.0
drwxr-xr-x  2 erwan erwan 4096 févr.  6 05:09 pxelinux.cfg/

So all my files are properly linked to the current state of my build tree so no risk on inconsistencies.

[erwan at localhost init (debian-dev2)]$ gcc -v
Utilisation des specs internes.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-mageia-linux-gnu/4.6.3/lto-wrapper
Target: x86_64-mageia-linux-gnu
Configuré avec: ../configure --prefix=/usr --libexecdir=/usr/lib --with-slibdir=/lib64 --with-bugurl=http://bugs.mageia.org/ --mandir=/usr/share/man --infodir=/usr/share/info --enable-checking=release --enable-languages=c,c++,ada,fortran,objc,obj-c++,java --enable-linker-build-id --build=x86_64-mageia-linux-gnu --host=x86_64-mageia-linux-gnu --with-cpu=generic --with-system-zlib --enable-threads=posix --enable-shared --enable-objc-gc --enable-long-long --enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu --enable-java-awt=gtk --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-gtk-cairo --disable-libjava-multilib --enable-ssp --disable-libssp --disable-werror --with-ppl --with-cloog --with-python-dir=/lib/python2.7/site-packages --enable-lto
Modèle de thread: posix
gcc version 4.6.3 (GCC)

GNU ld (GNU Binutils) 2.22

That's 100% reproductible here.

Any ideas on why building inside com32/hdt make a difference ?
Note that the file size are the same in both case and ldd reports the same usage of some c32 modules I'm using.

I'm very confused with this bug.

Cheers,