Re: vdso_install target broken post-3.15

H. Peter Anvin
2014-06-18T03:49:04Z

On 06/17/2014 08:45 PM, Andy Lutomirski wrote:
> On Tue, Jun 17, 2014 at 3:54 PM, Andy Lutomirski <luto@amacapital.net> wrote:
>> Just a heads up: gdb can't debug the vdso on 3.16-rc1. I filed a bug:
>>
>> https://sourceware.org/bugzilla/show_bug.cgi?id=17064
>>
>> We may need to extend the fake section header hack to all vdso
>> versions and stick the ELF notes in there.
>
> I have a semi-working implementation of a workaround, bit it adds a
> fair amount of extra crud to the image, and it's pushing my
> configuration past a page boundary. I suspect that, if we're willing
> to abuse the ELF format a bit more, I can get the overhead down,
> though.
>
> Are we okay with regressing here until binutils gets fixed?
>

Probably not... although I guess it depends just how bad it really is.

-hpa