On Wed, 2006-01-18 at 22:07 -0800, Ulrich Drepper wrote:
> Nicholas Miell wrote:
> > AMD64 renumbered all the syscalls for optimal cacheline usage or
> > something stupid like that. I suppose the x86 emulation on AMD64 kernels
> > could share the i386 table, but then _NR_foo will have a different value
> > depending on context, and that'll just get confusing.
>
> Yes, the syscall numbers are quite different, especially because x86 has
> all syscalls, even the obsolete ones.
>
> But what I mean is that the __NR_ia32_* macros in
> asm-x86-64/ia32_unistd.h aren't used anywhere in the kernel. And in
> userland the asm-x86/unistd.h file is used when compiling x86 apps. At
> least this is how the kernel headers for userlevel use should be set up.
Ah, that makes sense. Actually, a few of them are used (sigreturn,
rt_sigreturn, and restart_syscall), but I suppose those could be defined
locally.
--
Nicholas Miell <[email protected]>
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