Le 28/04/2022 à 16:06, Steven Rostedt a écrit :

On Thu, 28 Apr 2022 13:15:22 +0530
"Naveen N. Rao" [off-list ref] wrote:

quoted

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