Re: [PATCH] kbuild: Show Kconfig fragments in "help"

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On Thu, Aug 24, 2023 at 05:04:02PM -0700, Randy Dunlap wrote:
> Hi Kees,
> 
> On 8/24/23 15:36, Kees Cook wrote:
> > Doing a "make help" would show only hard-coded Kconfig targets and
> > depended on the archhelp target to include ".config" targets. There was
> > nothing showing global kernel/configs/ targets. Solve this by walking
> > the wildcard list and include them in the output, using the first comment
> > line as the help text.
> > 
> > Update all Kconfig fragments to include help text and adjust archhelp
> > targets to avoid redundancy.
> > 
> > Adds the following section to "help" target output:
> > 
> > Configuration fragment targets (for enabling various Kconfig items):
> >   debug.config         - Debugging for CI systems and finding regressions
> >   kvm_guest.config     - Bootable as a KVM guest
> >   nopm.config          - Disable Power Management
> >   rust.config          - Enable Rust
> >   tiny-base.config     - Minimal options for tiny systems
> >   tiny.config          - Smallest possible kernel image
> >   x86_debug.config     - Debugging options for tip tree testing
> >   xen.config           - Bootable as a Xen guest
> >   tiny.config          - x86-specific options for a small kernel image
> >   xen.config           - x86-specific options for a Xen virtualization guest
> 
> ISTM that you are missing the "why" part of this change in the commit
> description.

I want to see what fragments are available without needing to know the
source tree layout for their locations. :)

> "make tinyconfig" is the real target here.  The other (tiny.) files are just
> implementation details.
> We can't put all implementation details into help messages and it's not
> difficult to find that the (tiny.) config files are merged to make the
> final .config file.

Yeah, this seems true for much of the ppc stuff to, as pointed out by
mpe. I'll go answer there...

-- 
Kees Cook



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