On Wed, Sep 04, 2002 at 03:56:45PM +0200, Ralf Baechle wrote:
Additional changes I've done to my working version:
> As first think I want to get rid of all the historic crap we have in
> our syscall tables for the 64-bit syscalls. Let's start here:
> #define __NR_syscall (__NR_Linux + 0)
> Deprecated because can be implemented in userspace.
> #define __NR_ioperm (__NR_Linux + 101)
> #define __NR_iopl (__NR_Linux + 110)
> #define __NR_vm86 (__NR_Linux + 113)
> i386 braindamage we're never going to support. So why have it in our
> syscall table?
> #define __NR_unused59 (__NR_Linux + 59)
> #define __NR_reserved82 (__NR_Linux + 82)
> #define __NR_unused109 (__NR_Linux + 109)
> #define __NR_unused150 (__NR_Linux + 150)
> Unused entries. Why keep them ...
> #define __NR_break (__NR_Linux + 17)
> #define __NR_stty (__NR_Linux + 31)
> #define __NR_gtty (__NR_Linux + 32)
> #define __NR_ftime (__NR_Linux + 35)
> #define __NR_prof (__NR_Linux + 44)
> #define __NR_signal (__NR_Linux + 48)
> #define __NR_mpx (__NR_Linux + 56)
> #define __NR_ulimit (__NR_Linux + 58)
> #define __NR_readdir (__NR_Linux + 89)
> #define __NR_profil (__NR_Linux + 98)
> #define __NR_modify_ldt (__NR_Linux + 123)
One more for the same cathegory:
#define __NR_lock (__NR_Linux + 53)
> Slots that data back to day one of UNIX way before Linux was born.
> #define __NR_socketcall (__NR_Linux + 102)
> Wrapper syscall, obsoleted since quite a while in the 32-bit kernel.
> #define __NR_idle (__NR_Linux + 112)
> Internal syscall, no longer used.
> #define __NR_ipc (__NR_Linux + 117)
This implies eleven new entries for:
> Yet another multiplexor syscall and imho another candidate for getting
> rid of.
> #define __NR_oldstat (__NR_Linux + 18)
> #define __NR_umount (__NR_Linux + 22)
> #define __NR_oldfstat (__NR_Linux + 28)
> #define __NR_oldlstat (__NR_Linux + 84)
> Superseeded by newer versions.
> #define __NR_uselib (__NR_Linux + 86)
> a.out support. Do we really want that.
> I probably missed a few. The primary purpose of this posting is to get a
> discussion about the 64-bit syscall interface started. It's still not
> cast into stone so we can modify it as we see fit. The entire syscall
> interface is still open for changes, this includes all structures etc.
> Along with a 64-bit ABI we'll also have to deciede about a N32 ABI.
> Suggestions, comments etc?