Re: -__PAGE_OFFSET

"amey d inamdar" [off-list ref] writes:

Hello everybody,
     While running through source of 2.4 kernel, in head.S, I found the 
line
86 :   movl $pg0-__PAGE_OFFSET,%edi

    I am not getting, at this point there is no virtual address & $pg0 
itself contains physical address of first page table, then why to 
subtract 3GB from the physical address?

The linker doesn't know the page tables haven't been setup yet.
Look at the addresses in System.map.

      Thanx in anticipation.

Welcome.

Eric
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