lkml.org 
[lkml]   [2022]   [May]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH 2/2] recordmcount: Handle sections with no non-weak symbols
Date


Le 28/04/2022 à 16:06, Steven Rostedt a écrit :
> On Thu, 28 Apr 2022 13:15:22 +0530
> "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com> wrote:
>
>> Indeed, plain old -pg will be a problem. I'm not sure there is a generic
>> way to address this. I suppose architectures will have to validate the
>> mcount locations, something like this?
>
> Perhaps another solution is to make the mcount locations after the linking
> is done. The main downside to that is that it takes time to go over the
> entire vmlinux, and will slow down a compile that only modified a couple of
> files.
>

If we do that after the linking, won't it be a nightmare with the
trampolines installed by the linker when the destination is over the 24
bits limit ?

Christophe
\
 
 \ /
  Last update: 2022-05-02 16:45    [W:0.072 / U:1.672 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site