Re: Patch "i386: Relocatable kernel support" causes instant reboot

From: Vivek Goyal
Date: Tue Dec 26 2006 - 23:18:04 EST


On Tue, Dec 26, 2006 at 01:43:31PM +0100, Segher Boessenkool wrote:
> >Thanks Jean. Your compressed/head.o looks fine.
>
> No it doesn't -- the .text.head section doesn't have
> the ALLOC attribute set. The section then ends up not
> being assigned to an output segment (during the linking
> of vmlinux) and all hell breaks loose. The linker gives
> you a warning about this btw.
>

Thanks Segher. You are right. I did not notice that.

Section Headers:
[Nr] Name Type Addr Off Size ES Flg Lk Inf Al
[ 0] NULL 00000000 000000 000000 00 0 0 0
[ 1] .text PROGBITS 00000000 000034 000044 00 AX 0 0 4
[ 2] .rel.text REL 00000000 0005c8 000040 08 8 1 4
[ 3] .data PROGBITS 00000000 000078 000000 00 WA 0 0 4
[ 4] .bss NOBITS 00000000 000078 001000 00 WA 0 0 4
[ 5] .text.head PROGBITS 00000000 000078 00006e 00 0 0 1

.text.head is not type AX so it will be left out from the linked output.
This reminds me that I have put another patch in kernel/head.S creating
a new section .text.head. I think I shall have to put a patch there too
to make it work with older binutils.

Thanks
Vivek
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