Re: ELF: what should be part of the userspace headers?
On Sat, Aug 05, 2006 at 07:08:43PM +0800, David Woodhouse wrote:
On Sat, 2006-08-05 at 13:05 +0200, Adrian Bunk wrote:
> include/linux/elf-em.h is used by include/linux/audit.h, but this usage
> doesn't seem to be part of the kernel <-> userspace interface?
The machine types _are_ part of the audit kernel<->userspace interface,
I think. Exporting elf-em.h should be fairly harmless.
> And which part of the ELF headers is part of the kernel <-> userspace
> interface?
Almost none of them, I'd suggest. Nothing but auxvec.h
Well, sys/procfs.h on several arches includes <asm/elf.h>:
find -type f -a -name \*.h | xargs grep '<\(asm\|linux\).*elf'
./sysdeps/unix/sysv/linux/alpha/sys/procfs.h:#include <asm/elf.h>
./sysdeps/unix/sysv/linux/sh/sys/procfs.h:#include <asm/elf.h>
./sysdeps/unix/sysv/linux/sys/procfs.h:#include <asm/elf.h>
while most other arches don't need it:
for i in `find . -name procfs.h`; do grep -q '<\(asm\|linux\).*elf' $i || echo
$i; done
./sysdeps/unix/sysv/linux/s390/sys/procfs.h
./sysdeps/unix/sysv/linux/powerpc/sys/procfs.h
./sysdeps/unix/sysv/linux/sparc/sys/procfs.h
./sysdeps/unix/sysv/linux/i386/sys/procfs.h
./sysdeps/unix/sysv/linux/ia64/sys/procfs.h
./sysdeps/unix/sysv/linux/x86_64/sys/procfs.h
Guess it shouldn't be hard to convert even alpha and sh (not sure then
if there are any arches that actually use the linux/sys/procfs.h header).
Jakub