linux-kernel - Re: [PATCHv2 7/7] Kbuild: Use HOST*FLAGS options from the command line

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Date:   Thu, 12 Jul 2018 19:11:17 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Laura Abbott <labbott@...hat.com>
Cc:     Josh Poimboeuf <jpoimboe@...hat.com>, Jiri Olsa <jolsa@...nel.org>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Robin Jarry <robin.jarry@...nd.com>,
        Jonathan Corbet <corbet@....net>,
        "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>
Subject: Re: [PATCHv2 7/7] Kbuild: Use HOST*FLAGS options from the command line

2018-07-10 9:46 GMT+09:00 Laura Abbott <labbott@...hat.com>:
>
> Now that we have the rename in place, reuse the HOST*FLAGS options as
> something that can be set from the command line and included with the
> rest of the flags.
>
> Signed-off-by: Laura Abbott <labbott@...hat.com>
> ---
> v2: Use the correct name for HOSTLDLIBS, update documentation.
> ---
>  Documentation/kbuild/kbuild.txt | 16 ++++++++++++++++
>  Makefile                        |  9 +++++----
>  2 files changed, 21 insertions(+), 4 deletions(-)
>




> +HOSTLDFLAGS
> +--------------------------------------------------
> +Additional flags to be passed to $(HOSTLD) when building host programs.



Strictly speaking, $(CC) or $(CXX) is used
when linking host programs.


See this.
https://github.com/torvalds/linux/blob/v4.17/scripts/Makefile.host#L95
https://github.com/torvalds/linux/blob/v4.17/scripts/Makefile.host#L112


In fact, there is no definition of 'HOSTLD' in the top Makefile.


I will reword it to:


HOSTLDFLAGS
--------------------------------------------------
Additional flags to be passed when linking host programs.




I will also move this hunk up
after LDFLAGS_MODULE.





-- 
Best Regards
Masahiro Yamada