Re: [PATCH 3/5] x86/link: Reduce the number of sections created

[Andrew Cooper <andrew.cooper3@citrix.com>]

On 05/06/15 16:38, Jan Beulich wrote:
>>>> On 05.06.15 at 15:31, <andrew.cooper3@citrix.com> wrote:
>> There is no need for top level sections for each of these, so they are
>> subsumed into more-generic sections.
>>
>>   .data.read_mostly and .lockprofile.data are moved to .data
>>
>>   .init.setup, .initcall.init, .xsm_initcall.init are moved to .init.data
>>
>> This will simplify the later adjustments to use superpages.
> I'm curious, as I wouldn't expect the section count to matter there
> at all. Generally, especially when having to disassemble a xen-syms
> I find it quite useful if e.g. not all data is lumped together into one
> big .data section.

With hindsight since writing, I think I can solve the conceptual problem
I was having with extra commenting in the linker script.

Originally I attempting to coalesce all sections which would have
identical superpage permissions, but this isn't exclusive with having
these sections separately.

Any thoughts about the .reloc section, at least moving it into it to
between __init_begin and __init_end so it gets reclaimed on boot?

~Andrew