get program exception in early setup

get program exception in early setup

[Jerry Walden]

Greetings:

I just built a brand new kernel(2.4.18) for the PPC 405Gp, and I discovered
something that does
not make sense to me.

In setup.c / early_setup:

	/* First zero the BSS -- use memset, some arches don't have
	 * caches on yet */
	memset_io(PTRRELOC(&__bss_start), 0, &_end - &__bss_start);


>From System.map:

c0113000 A __bss_start
c0113000 A __chrp_begin
c0113000 A __chrp_end
c0113000 A __init_end
c0113000 A __openfirmware_begin
c0113000 A __openfirmware_end
c0113000 A __pmac_begin
c0113000 A __pmac_end
c0113000 A __prep_begin
c0113000 A __prep_end
     |
     |
     |
     V
c013bc40 B ipv4_config
c013bc4c B unix_socket_table
c013c050 A _end

The symbol _end does not come after the bss - it is at the end of the
kernel, so the memset gets an exception.

It also looks like there is no _bss at all -

Help?
Do I hack the heck out of the file, or is there a better way?


I did a:

make mrproper
make dep
make pImage

Thanks

Jerry


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Re: get program exception in early setup

[ghannon]

Jerry Walden wrote:

> From System.map:

> c0113000 A __bss_start
>     |
>     |
>     |
>     V
> c013c050 A _end

> The symbol _end does not come after the bss - it is at the end of the
> kernel, so the memset gets an exception.

_end is correctly after bss_start.

There is probably a different problem with how memory is mapped.

Did your kernel get decompressed correctly at 0?


Gary


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