Paul wrote: > Hi Jan > > Just a small patch to get the ball rolling with an x86_64 support.. > > The attached resolves a compile time warning of: > > kernel/xenomai/skins/rtdm/core.c: In function ‘_rtdm_ioctl’: > kernel/xenomai/skins/rtdm/core.c:408: warning: comparison is always false due > to limited range of data type >
Yeah, when looking at this issue with 64-bit glasses, this urgently needs fixing (I wonder why ia64 didn't stumble yet?). Your patch points in the right direction, but it needs a bit fine-tuning and also has to include the ioctl handlers of drivers. I will work out a fix and inform you. I'll have to rely on your test lab. :) But first I need some build environment. A quick shot ended here when trying to configure a patch and prepared 2.6.19 kernel: # make ARCH=x86_64 CC="gcc -m64" oldconfig ... init/Kconfig:572: can't open file "arch/x86_64/xenomai/Kconfig" Anyone any idea? Is something missing, or is the prepare script broken? Jan PS: Once we have in-tree RTDM services and drivers running, are you interested in a RTnet excursion over x64? I should be able to make this compile, but for testing...
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