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* Re: man x86<instruction>
@ 2002-12-09 15:45 Joshua Hudson
  2002-12-09 15:53 ` Claes Nyberg
  0 siblings, 1 reply; 4+ messages in thread
From: Joshua Hudson @ 2002-12-09 15:45 UTC (permalink / raw)
  To: linux-assembly

>From: Claes Nyberg <md0claes@mdstud.chalmers.se>
>scanning the instruction set reference file.
Did you think of using vi's search to scan the file for you?
e.g. /^lea

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^ permalink raw reply	[flat|nested] 4+ messages in thread
* Tiny pivot root for asmutils-collection ...
@ 2002-12-09  0:23 Fabian Franz
  2002-12-09 15:11 ` man x86<instruction> Claes Nyberg
  0 siblings, 1 reply; 4+ messages in thread
From: Fabian Franz @ 2002-12-09  0:23 UTC (permalink / raw)
  To: linux-assembly

I needed it for an initrd-project:

section .text           ; declaring our .text segment
        global  _start  ; telling where program execution should start

        _start:                 ; this is where code starts getting exec'ed
        pop     ebx             ; argc
        pop     ebx             ; argv[0]
        pop     ebx             ; the first real arg, new_root
        pop     ecx             ; the first real arg, put_old


        mov     eax,217         ; the syscall number for pivot_root
                                ; we already have the new_root in ebx and 
put_old in ecx

        int     80h             ; call the kernel

        mov     ebx,eax         ; save the errno in ebx
        mov     eax,1           ; put the exit syscall number in eax
        int     80h             ; bail out

It was pretty easy to program; thx to the great tutorials on 
linuxassembly.org. Perhaps you have a use for it ? Its GPL, so feel free to 
add it ...

cu

Fabian

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2002-12-10  0:43 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2002-12-09 15:45 man x86<instruction> Joshua Hudson
2002-12-09 15:53 ` Claes Nyberg
2002-12-10  0:43   ` Doug Smith
  -- strict thread matches above, loose matches on Subject: below --
2002-12-09  0:23 Tiny pivot root for asmutils-collection Fabian Franz
2002-12-09 15:11 ` man x86<instruction> Claes Nyberg

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