[PATCH 2/2] powerpc/vmlinux.lds: Discard .interp section

[Michael Ellerman]

Alan Modra <amodra at gmail.com> writes:
> On Thu, Feb 27, 2020 at 03:59:33PM +1100, Michael Ellerman wrote:
>> The .interp section specifies which "interpreter", ie. dynamic loader,
>> the kernel requests. But that doesn't make any sense, the kernel is
>> not a regular binary that is run with an interpreter.
>> 
>> The content seems to be some default value, this file doesn't even
>> exist on my system:
>>   00000000  2f 75 73 72 2f 6c 69 62  2f 6c 64 2e 73 6f 2e 31  |/usr/lib/ld.so.1|
>> 
>> So the section serves no useful purpose and consumes a small amount of
>> space.
>> 
>> Also Alan Modra says we "likely could discard" it, so do so.
>
> Yes, but you ought to check with the mimimum required binutils.  It is
> quite possible that an older linker will blow up.

OK, I guess I'll have to test.

> If the minimum required binutils is at least binutils-2.26 then
> passing --no-dynamic-linker to ld is a more elegant solution.

The current minimum is 2.21, though there's talk of increasing it to
2.23.

cheers