All of lore.kernel.org
 help / color / mirror / Atom feed
From: Stefan Agner <stefan@agner.ch>
To: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Kees Cook <keescook@chromium.org>,
	Nicholas Piggin <npiggin@gmail.com>,
	"Luis R . Rodriguez" <mcgrof@suse.com>,
	Randy Dunlap <rdunlap@infradead.org>,
	Ulf Magnusson <ulfalizer@gmail.com>,
	Sam Ravnborg <sam@ravnborg.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kbuild-owner@vger.kernel.org
Subject: Re: [PATCH v5 24/31] kconfig: add CC_IS_GCC and GCC_VERSION
Date: Tue, 05 Jun 2018 07:50:56 +0200	[thread overview]
Message-ID: <9a58f4b4e488a3bfc41aba39bc73f8ff@agner.ch> (raw)
In-Reply-To: <CAK7LNAQ9t-eRRb_mYunEAocaYksOTr=4sw+pExhMd9AvMx+zOw@mail.gmail.com>

On 05.06.2018 02:07, Masahiro Yamada wrote:
> Hi Stefan
> 
> 2018-06-05 6:49 GMT+09:00 Stefan Agner <stefan@agner.ch>:
>> Hi Masahiro,
>>
>> On 28.05.2018 11:22, Masahiro Yamada wrote:
>>> This will be useful to specify the required compiler version,
>>> like this:
>>>
>>> config FOO
>>>         bool "Use Foo"
>>>         depends on GCC_VERSION >= 40800
>>>         help
>>>           This feature requires GCC 4.8 or newer.
>>>
>>
>> I tried using CC_IS_GCC today while using clang. It seems that it is set
>> to y despite I am using CC=clang.
>>
>> .config looks like this after config:
>>
>> ...
>> CONFIG_CC_IS_GCC=y
>> CONFIG_GCC_VERSION=40201
>> CONFIG_CC_IS_CLANG=y
>> CONFIG_CLANG_VERSION=60000
>> ...
>>
>>
>> I am using clang 6.0.0 on Arch Linux, which seems to return a version
>> when using gcc-version.sh:
>> ./scripts/gcc-version.sh clang | sed 's/^0*//'
>> 402
>>
>> I guess that should not be the case?
>>
> 
> 
> What will 'clang --version' print on your machine?

$ clang --version
clang version 6.0.0 (tags/RELEASE_600/final)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir:
/home/ags/gcc-linaro-7.2.1-2017.11-x86_64_arm-linux-gnueabihf/bin

I use a symlink to clang in my cross compiler toolchain, that is why
InstalledDir points to a GCC toolchain.

--
Stefan

  reply	other threads:[~2018-06-05  5:51 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-28  9:21 [PATCH v5 00/31] kconfig: move compiler capability tests to Kconfig Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 01/31] kbuild: remove kbuild cache Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 02/31] kbuild: remove CONFIG_CROSS_COMPILE support Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 03/31] kconfig: reference environment variables directly and remove 'option env=' Masahiro Yamada
2018-06-08 17:53   ` [v5, " Andrei Vagin
2018-05-28  9:21 ` [PATCH v5 04/31] kconfig: remove string expansion in file_lookup() Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 05/31] kconfig: remove string expansion for mainmenu after yyparse() Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 06/31] kconfig: remove sym_expand_string_value() Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 07/31] kconfig: make default prompt of mainmenu less specific Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 08/31] kconfig: add built-in function support Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 09/31] kconfig: add 'shell' built-in function Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 10/31] kconfig: replace $(UNAME_RELEASE) with function call Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 11/31] kconfig: begin PARAM state only when seeing a command keyword Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 12/31] kconfig: support user-defined function and recursively expanded variable Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 13/31] kconfig: support simply " Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 14/31] kconfig: support append assignment operator Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 15/31] kconfig: expand lefthand side of assignment statement Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 16/31] kconfig: add 'info', 'warning-if', and 'error-if' built-in functions Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 17/31] kconfig: add 'filename' and 'lineno' built-in variables Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 18/31] kconfig: error out if a recursive variable references itself Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 19/31] Documentation: kconfig: document a new Kconfig macro language Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 20/31] kconfig: test: add Kconfig macro language tests Masahiro Yamada
2018-05-28  9:21 ` [PATCH v5 21/31] kconfig: show compiler version text in the top comment Masahiro Yamada
2018-06-07  8:42   ` Geert Uytterhoeven
2018-06-07  8:58     ` Masahiro Yamada
2018-06-08  7:04       ` Masahiro Yamada
2018-06-08  8:22         ` Geert Uytterhoeven
2018-05-28  9:21 ` [PATCH v5 22/31] kconfig: add basic helper macros to scripts/Kconfig.include Masahiro Yamada
2018-05-28  9:22 ` [PATCH v5 23/31] stack-protector: test compiler capability in Kconfig and drop AUTO mode Masahiro Yamada
2018-05-28  9:22 ` [PATCH v5 24/31] kconfig: add CC_IS_GCC and GCC_VERSION Masahiro Yamada
2018-06-04 21:49   ` Stefan Agner
2018-06-05  0:07     ` Masahiro Yamada
2018-06-05  5:50       ` Stefan Agner [this message]
2018-06-05  6:27         ` Masahiro Yamada
2018-06-05  8:37           ` Stefan Agner
2018-05-28  9:22 ` [PATCH v5 25/31] kconfig: add CC_IS_CLANG and CLANG_VERSION Masahiro Yamada
2018-05-28  9:22 ` [PATCH v5 26/31] gcov: remove CONFIG_GCOV_FORMAT_AUTODETECT Masahiro Yamada
2018-05-28  9:22 ` [PATCH v5 27/31] kcov: test compiler capability in Kconfig and correct dependency Masahiro Yamada
2018-06-10 14:19   ` Masahiro Yamada
2018-05-28  9:22 ` [PATCH v5 28/31] gcc-plugins: move GCC version check for PowerPC to Kconfig Masahiro Yamada
2018-05-28  9:22 ` [PATCH v5 29/31] gcc-plugins: test plugin support in Kconfig and clean up Makefile Masahiro Yamada
2018-05-28  9:22 ` [PATCH v5 30/31] gcc-plugins: allow to enable GCC_PLUGINS for COMPILE_TEST Masahiro Yamada
2018-05-28  9:22 ` [PATCH v5 31/31] Documentation: kconfig: add recommended way to describe compiler support Masahiro Yamada
2018-05-28 12:23 ` [PATCH v5 00/31] kconfig: move compiler capability tests to Kconfig Masahiro Yamada
2018-05-30  0:38   ` Masahiro Yamada
2018-06-01  8:31     ` Arnd Bergmann
2018-06-01 10:29       ` Masahiro Yamada
2018-06-01 11:09         ` Arnd Bergmann

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:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

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

  git send-email \
    --in-reply-to=9a58f4b4e488a3bfc41aba39bc73f8ff@agner.ch \
    --to=stefan@agner.ch \
    --cc=keescook@chromium.org \
    --cc=linux-kbuild-owner@vger.kernel.org \
    --cc=linux-kbuild@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mcgrof@suse.com \
    --cc=npiggin@gmail.com \
    --cc=rdunlap@infradead.org \
    --cc=sam@ravnborg.org \
    --cc=torvalds@linux-foundation.org \
    --cc=ulfalizer@gmail.com \
    --cc=yamada.masahiro@socionext.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* 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.