Re: [PATCH 2/4] certs: fix and refactor CONFIG_SYSTEM_BLACKLIST_HASH_LIST build

From: Mickaël Salaün
Date: Mon Jun 13 2022 - 16:31:31 EST



On 13/06/2022 20:56, Masahiro Yamada wrote:
On Tue, Jun 14, 2022 at 3:06 AM Mickaël Salaün <mic@xxxxxxxxxxx> wrote:


On 13/06/2022 16:55, Masahiro Yamada wrote:
On Mon, Jun 13, 2022 at 9:34 PM Mickaël Salaün <mic@xxxxxxxxxxx> wrote:



On 11/06/2022 19:22, Masahiro Yamada wrote:
Commit addf466389d9 ("certs: Check that builtin blacklist hashes are
valid") was applied 8 months after the submission.

In the meantime, the base code had been removed by commit b8c96a6b466c
("certs: simplify $(srctree)/ handling and remove config_filename
macro").

Fix the Makefile.

Create a local copy of $(CONFIG_SYSTEM_BLACKLIST_HASH_LIST). It is
included from certs/blacklist_hashes.c and also works as a timestamp.

Send error messages from check-blacklist-hashes.awk to stderr instead
of stdout.

Fixes: addf466389d9 ("certs: Check that builtin blacklist hashes are valid")
Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>

Reviewed-by: Mickaël Salaün <mic@xxxxxxxxxxxxxxxxxxx>

As a side note, it may let an orphan certs/blacklist_hashes_checked file
but we can't really do something about that and it's OK.


GNU Make uses timestamps of files for dependency tracking,
so Kbuild keeps all intermediate files.

Keeping certs/blacklist_hashes_checked
is the right thing to do.

blacklist_hashes_checked is the file you replaced with
blacklist_hash_list, and is then not used in any Makefile anymore. There
is then no timestamp issue. I just wanted to mention that it is normal
that a git status will show it on build directories also used as source
directories that were already using such feature.


Ah, sorry, I misunderstood your feedback.

If 'git status' is your concern,
we can add certs/blacklist_hashes_checked
to scripts/remove-stale-files.

addf466389d9d78f255e8b15ac44ab4791029852
was merged into mainline just recently, and
not contained in any release.

Indeed, it's all good then.


But, if the orphan timestamp matters, I will do it.
It is just a one-liner addition.