Re: [PATCH 0/3] KCOV function entry/exit records

[Peter Zijlstra]

On Wed, Mar 11, 2026 at 10:06:13PM +0100, Jann Horn wrote:
> This series adds a KCOV feature that userspace can use to keep track of
> the current call stack. When userspace enables the new mode
> KCOV_TRACE_PC_EXT, collected instruction addresses are tagged with one
> of three types:
> 
>  - function entry
>  - non-entry basic block
>  - function exit
> 
> This requires corresponding LLVM support; an LLVM patch implementing
> this feature has been uploaded for review at
> <https://github.com/llvm/llvm-project/pull/185972>, but hasn't landed yet.

And I don't suppose KCOV will finally honour noinstr ?