as question

[Gabriel Paubert]

On Thu, 18 Apr 2002, Dan Brennan wrote:

>
> In arch/ppc/kernel/head.S the following code segment exists:
>
> turn_on_mmu:
>         mfmsr   r0
>         ori     r0,r0,MSR_DR|MSR_IR
>         mtspr   SRR1,r0
>         lis     r0,start_here at h
>         ori     r0,r0,start_here at l
>         mtspr   SRR0,r0
>         SYNC
> 	RFI
>
> However, when I do objdump on head.o this is what appears:
>
> 00000088 <turn_on_mmu>:
>       88:       7c 00 00 a6     mfmsr   r0
>       8c:       60 00 00 30     ori     r0,r0,48
>       90:       7c 1b 03 a6     mtsrr1  r0
>       94:       3c 00 00 00     lis     r0,0
>       98:       60 00 00 00     nop
>       9c:       7c 1a 03 a6     mtsrr0  r0
>       a0:       4c 00 00 64     rfi
>
> It appears that the code which loads the address of the label start_here
> does not get assembled correctly. Is this observation correct?

No, the code is not yet linked. Hint: add --reloc to the objdump command
to see what instructions will be modified by the linker.

	Regards,
	Gabriel.


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