All of
 help / color / mirror / Atom feed
From: Nathan Chancellor <>
To: Naresh Kamboju <>,
	open list <>,
	Greg Kroah-Hartman <>,
	Sasha Levin <>,,,
	Linux-Next Mailing List <>
Cc: Nick Desaulniers <>,
	Stephen Rothwell <>
Subject: Re: clang: error: unsupported argument '-mimplicit-it=always' to option 'Wa,'
Date: Thu, 16 Sep 2021 08:20:32 -0700	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

Hi Naresh,

On 9/16/2021 6:45 AM, Naresh Kamboju wrote:
> Following build warnings/ errors noticed while building linux next-20210916
> with clang-10, clang-11 and clang-12  for arm architecture.
>        - allnoconfig
>        - tinyconfig
> But builds PASS with clang-13.
> clang: error: unsupported argument '-mimplicit-it=always' to option 'Wa,'
> make[2]: *** [/builds/linux/scripts/
> scripts/mod/empty.o] Error 1
> make[2]: Target '__build' not remade because of errors.
> make[1]: *** [/builds/linux/Makefile:1329: prepare0] Error 2
> make[1]: Target '__all' not remade because of errors.
> make: *** [Makefile:226: __sub-make] Error 2
> make: Target '__all' not remade because of errors.

Thank you for the report. This is caused by the implicit switch to the 
integrated assembler in commit f12b034afeb3 ("scripts/Makefile.clang: 
default to LLVM_IAS=1").

Prior to LLVM 13, -Wa,-mimplicit-it=... was not properly handled by the 
integrated assembler but Nick fixed that:

As noted in the above Linux commit, please adjust arm clang-10 through 
clang-12 builds with TuxSuite to pass 'LLVM_IAS=0' to make, which you 
can do with the 'make_variables' key:

Sorry for not giving you guys more of a heads up about that switch.


      reply	other threads:[~2021-09-16 15:20 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-16 13:45 clang: error: unsupported argument '-mimplicit-it=always' to option 'Wa,' Naresh Kamboju
2021-09-16 13:45 ` Naresh Kamboju
2021-09-16 15:20 ` Nathan Chancellor [this message]

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 \ \ \ \ \ \ \ \ \ \ \ \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.