LKML Archive on
help / color / mirror / Atom feed
From: James Bottomley <>
Cc:, Masahiro Yamada <>
Subject: [PATCH 0/1] Add explicit error for missing CONFIG_ASN1
Date: Tue, 22 Sep 2020 08:53:40 -0700	[thread overview]
Message-ID: <> (raw)

I recently ran into this as an error from 0day.  On x86 it's pretty
much impossible to build a configuration where CONFIG_ASN1 isn't set,
so you rarely notice a problem using the ASN.1 compiler because
something else has selected it.  However, this compiler is never built
if CONFIG_ASN1 isn't set and the error you get from kbuild is
particularly unhelpful:

   make[4]: *** No rule to make target 'security/keys/trusted-keys/tpm2key.asn1.o', needed by 'security/keys/trusted-keys/built-in.a'.
   make[4]: *** [scripts/ security/keys/trusted-keys/trusted_tpm2.o] Error 1
   make[4]: Target '__build' not remade because of errors.

This patch changes the above error to the much easier to diagnose:

   scripts/ *** CONFIG_ASN1 must be defined for the asn1_compiler.  Stop.
   make[3]: *** [scripts/ security/keys/trusted-keys] Error 2



James Bottomley (1): Add an explicit error for missing ASN.1 compiler

 scripts/ | 5 +++++
 1 file changed, 5 insertions(+)


             reply	other threads:[~2020-09-22 16:00 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-22 15:53 James Bottomley [this message]
2020-09-22 15:53 ` [PATCH 1/1] Add an explicit error for missing ASN.1 compiler James Bottomley
2020-09-24 17:18   ` Masahiro Yamada
2020-09-22 18:54 ` [PATCH 0/1] Add explicit error for missing CONFIG_ASN1 Randy Dunlap
2020-09-22 19:19   ` James Bottomley
2020-09-22 19:38     ` Randy Dunlap
2020-09-22 19:44       ` James Bottomley
2020-09-22 19:46         ` Randy Dunlap
2020-09-22 19:48           ` James Bottomley
2020-09-22 19:52             ` Randy Dunlap

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \ \ \
    --subject='Re: [PATCH 0/1] Add explicit error for missing CONFIG_ASN1' \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).