From: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
To: Masahiro Yamada <yamada.masahiro@socionext.com>,
linux-kbuild@vger.kernel.org
Cc: Sam Ravnborg <sam@ravnborg.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Arnd Bergmann <arnd@arndb.de>,
Ulf Magnusson <ulfalizer@gmail.com>,
Kees Cook <keescook@chromium.org>,
Thomas Gleixner <tglx@linutronix.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Randy Dunlap <rdunlap@infradead.org>,
"Luis R . Rodriguez" <mcgrof@kernel.org>,
Nicolas Pitre <nico@linaro.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 15/21] gcov: remove CONFIG_GCOV_FORMAT_AUTODETECT
Date: Tue, 27 Mar 2018 11:12:06 +0200 [thread overview]
Message-ID: <4b423f15-fa71-d51c-9362-942ba26c0fe6@linux.vnet.ibm.com> (raw)
In-Reply-To: <1522128575-5326-16-git-send-email-yamada.masahiro@socionext.com>
On 27.03.2018 07:29, Masahiro Yamada wrote:
> CONFIG_GCOV_FORMAT_AUTODETECT compiles either gcc_3_4.c or gcc_4_7.c
> according to your GCC version.
>
> We can achieve the equivalent behavior by setting reasonable dependency
> with the knowledge of the compiler version.
>
> If GCC older than 4.7 is used, GCOV_FORMAT_3_4 is the default, but users
> are still allowed to select GCOV_FORMAT_4_7 in case the newer format is
> back-ported.
>
> On the other hand, If GCC 4.7 or newer is used, there is no reason to
> use GCOV_FORMAT_3_4, so it should be hidden.
>
> If you down-grade your compiler GCC 4.7 or older, oldconfig/syncconfig
> will display a prompt for the choice because GCOV_FORMAT_3_4 becomes
> visible as a new symbol.
Looks sane to me.
Acked-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
--
Peter Oberparleiter
Linux on Z Development - IBM Germany
next prev parent reply other threads:[~2018-03-27 9:12 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-27 5:29 [PATCH v2 00/21] kconfig: move compiler capability tests to Kconfig Masahiro Yamada
2018-03-27 5:29 ` [PATCH v2 01/21] kbuild: remove kbuild cache Masahiro Yamada
2018-03-28 3:26 ` Kees Cook
2018-03-27 5:29 ` [PATCH v2 02/21] kbuild: remove CONFIG_CROSS_COMPILE support Masahiro Yamada
2018-03-28 3:28 ` Kees Cook
2018-03-27 5:29 ` [PATCH v2 03/21] kconfig: move and rename sym_expand_string_value() Masahiro Yamada
2018-03-28 3:29 ` Kees Cook
2018-03-27 5:29 ` [PATCH v2 04/21] kconfig: reference environments directly and remove 'option env=' syntax Masahiro Yamada
2018-03-28 3:33 ` Kees Cook
2018-03-29 2:19 ` Ulf Magnusson
2018-03-29 2:56 ` Ulf Magnusson
2018-03-29 17:38 ` Ulf Magnusson
2018-03-30 5:30 ` Masahiro Yamada
2018-04-01 2:27 ` Ulf Magnusson
2018-04-01 2:40 ` Ulf Magnusson
2018-04-13 6:02 ` Masahiro Yamada
2018-03-27 5:29 ` [PATCH v2 05/21] kconfig: remove string expansion in file_lookup() Masahiro Yamada
2018-03-28 3:34 ` Kees Cook
2018-04-01 2:52 ` Ulf Magnusson
2018-03-27 5:29 ` [PATCH v2 06/21] kconfig: remove string expansion for mainmenu after yyparse() Masahiro Yamada
2018-03-28 3:35 ` Kees Cook
2018-04-01 2:59 ` Ulf Magnusson
2018-03-27 5:29 ` [PATCH v2 07/21] kconfig: add function support and implement 'shell' function Masahiro Yamada
2018-03-28 3:41 ` Kees Cook
2018-04-13 5:32 ` Masahiro Yamada
2018-03-29 2:42 ` Ulf Magnusson
2018-04-01 4:19 ` Ulf Magnusson
2018-04-13 5:37 ` Masahiro Yamada
2018-03-27 5:29 ` [PATCH v2 08/21] kconfig: replace $UNAME_RELEASE with function call Masahiro Yamada
2018-03-28 3:42 ` Kees Cook
2018-04-01 4:38 ` Ulf Magnusson
2018-03-27 5:29 ` [PATCH v2 09/21] kconfig: add 'macro' keyword to support user-defined function Masahiro Yamada
2018-03-28 3:45 ` Kees Cook
2018-04-01 6:05 ` Ulf Magnusson
2018-04-01 6:49 ` Ulf Magnusson
2018-04-13 5:44 ` Masahiro Yamada
2018-03-27 5:29 ` [PATCH v2 10/21] kconfig: add 'success' and 'cc-option' macros Masahiro Yamada
2018-03-28 3:46 ` Kees Cook
2018-04-01 6:28 ` Ulf Magnusson
2018-03-27 5:29 ` [PATCH v2 11/21] stack-protector: test compiler capability in Kconfig and drop AUTO mode Masahiro Yamada
2018-03-28 11:18 ` Kees Cook
2018-04-09 8:54 ` Masahiro Yamada
2018-04-09 15:04 ` Kees Cook
2018-04-10 3:15 ` Masahiro Yamada
2018-03-27 5:29 ` [PATCH v2 12/21] kconfig: show compiler version text in the top comment Masahiro Yamada
2018-03-28 3:26 ` Kees Cook
2018-03-27 5:29 ` [PATCH v2 13/21] kconfig: add CC_IS_GCC and GCC_VERSION Masahiro Yamada
2018-03-28 11:19 ` Kees Cook
2018-03-27 5:29 ` [PATCH v2 14/21] kconfig: add CC_IS_CLANG and CLANG_VERSION Masahiro Yamada
2018-03-28 11:22 ` Kees Cook
2018-03-28 11:52 ` Masahiro Yamada
2018-03-27 5:29 ` [PATCH v2 15/21] gcov: remove CONFIG_GCOV_FORMAT_AUTODETECT Masahiro Yamada
2018-03-27 9:12 ` Peter Oberparleiter [this message]
2018-03-28 11:24 ` Kees Cook
2018-03-27 5:29 ` [PATCH v2 16/21] kcov: imply GCC_PLUGINS and GCC_PLUGIN_SANCOV instead of select'ing them Masahiro Yamada
2018-03-28 11:25 ` Kees Cook
2018-03-28 11:53 ` Kees Cook
2018-03-27 5:29 ` [PATCH v2 17/21] gcc-plugins: always build plugins with C++ Masahiro Yamada
2018-03-28 11:29 ` Kees Cook
2018-03-27 5:29 ` [PATCH v2 18/21] gcc-plugins: move GCC version check for PowerPC to Kconfig Masahiro Yamada
2018-03-28 11:30 ` Kees Cook
2018-03-27 5:29 ` [PATCH v2 19/21] gcc-plugins: test GCC plugin support in Kconfig Masahiro Yamada
2018-03-28 11:44 ` Kees Cook
2018-04-11 15:55 ` Masahiro Yamada
2018-04-11 16:09 ` Kees Cook
2018-03-27 5:29 ` [PATCH v2 20/21] gcc-plugins: enable GCC_PLUGINS for COMPILE_TEST Masahiro Yamada
2018-03-28 11:47 ` Kees Cook
2018-04-10 6:15 ` Masahiro Yamada
2018-04-10 7:00 ` Kees Cook
2018-03-27 5:29 ` [PATCH v2 21/21] arm64: move GCC version check for ARCH_SUPPORTS_INT128 to Kconfig Masahiro Yamada
2018-03-27 17:28 ` Will Deacon
2018-03-28 11:55 ` Kees Cook
2018-03-27 16:39 ` [PATCH v2 00/21] kconfig: move compiler capability tests " Masahiro Yamada
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