mh> I think elfdefintions.h should be removed. If anything is missing in exec_elf.h mh> it should be added there. Two header with nearly but not quite identical mh> definitions does not make sense.
My firsl attempt at writing libelf (in FreeBSD) had taken this approach (i.e. of using headers under <sys/>). But this turned out to be a maintenance headache - I soon discovered that different OSes differed in the ELF-related definitions they kept under <sys/>, that those definitions weren't always up to date with upstream developments, etc. So now I am trying a different approach: of moving ELF-related definitions to a <sys/elfdefinitions.h> file that is meant to be complete, up to date, portable and usable by both userspace and the kernel. The idea being that kernel headers (e.g. <sys/exec_elf.h>) could then #include this, allowing those headers to focus on just the functionality needed for the kernel's ELF handling. Regards, Joseph Koshy
