Re: [PATCH 10/33] i386: Relocatable kernel support.

Eric W. Biederman
2006-08-01T18:08:33Z

Mika Penttilä <mika.penttila@kolumbus.fi> writes:

>> @@ -1,9 +1,10 @@
>> SECTIONS
>> {
>> - .data : { + .data.compressed : {
>> input_len = .;
>> LONG(input_data_end - input_data) input_data = .; *(.data)
>> + output_len = . - 4;
>> input_data_end = .; }
>> }
>>
> I don't see how you are getting the uncompressed length from output_len...

It's part of the gzip format. It places the length at the end of
the compressed data. I am just computing the address of where gzip
put the length and putting a variable there called output_len.

Isn't linker script magic wonderful :)

Eric