[syslinux] Syslinux Digest, Vol 67, Issue 10

[Doug Scoular]

Hi Peter/Erwan et al,

With my incredibly limited understanding of all things com32, years
ago, I managed to write a com32 module to tell PXE users their MAC
address, machine make, model and whether they were on a 32 or 64 bit
processor. Users found this very useful when trying to re-image the
8,000 odd boxes spread round the globe.

This was hugely based on Erwan Velu's dmitest.c circa 3.20. I decided
I'd better update my com32 module and compile it against 3.7x but I
found that the "lm" flag which I relied on to determine 32/64 bit was
gone from dmi_processor.h.

I then thought the solution was obviously to use the cpuid.h code
which had the "lm" flag... however I find that I cannot include both:

#include "dmi/dmi.h"
#include <cpuid.h>

As they have conflicting ideas of what the cpu flags structure should be:

In file included from dugtest.c:30:
../../com32/include/cpuid.h:80: error: conflicting types for 's_cpu_flags'
../../com32/include/dmi/dmi_processor.h:103: error: previous
declaration of 's_cpu_flags' was here

While I can maybe code around this by changing the header files, I
thought I should point this out and ask that, maybe, dmi.h be made
more modular and rely on cpuid.h for CPU information and, prehaps,
retire dmi_processor.h.

Any thoughts on the best way to proceed much appreciated. I'm not
confident in my programming skills to offer much help myself.

Cheers,

Doug