linux-kernel - [PATCH v2 0/4] kconfig: store default ARCH in .config

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Date:	Mon, 01 Sep 2014 11:16:25 +0400
From:	Konstantin Khlebnikov <koct9i@...il.com>
To:	Michal Marek <mmarek@...e.cz>, linux-kernel@...r.kernel.org,
	linux-kbuild@...r.kernel.org
Cc:	Paul Bolle <pebolle@...cali.nl>,
	Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH v2 0/4] kconfig: store default ARCH in .config

This is second attempt of fixing target archecture amnesia.
v1 patch: http://lkml.kernel.org/r/20140706080234.19520.96704.stgit@zurg

First version saved ARCH as CONFIG_DEFAULT_ARCH and used it as defult ARCH.

This version changes semantic of Kconfig option env="...", now it acts more
like the user input, except that the value comes from the environment.
Variable from environment overrides all defaults and value from config file.
If environment variable is not defined this option has no effect.

So, now ARCH is saved as CONFIG_ARCH.

Also this patchset links CONFIG_CROSS_COMPILE and CROSS_COMPILE in the same way.
Changing it in command line/environment also updates value in the config file.

---

Konstantin Khlebnikov (4):
      kconfig: save values imported from environment into config file
      scripts/config: add option for changing output for undefined options
      kconfig: get target architecture from config file
      kconfig: link CONFIG_CROSS_COMPILE with environment variable

 Documentation/kbuild/kconfig-language.txt |   10 ++++------
 Documentation/kbuild/makefiles.txt        |    3 ++-
 Makefile                                  |   21 +++++++++++++++------
 init/Kconfig                              |    1 +
 scripts/config                            |   15 ++++++++++++---
 scripts/kconfig/confdata.c                |   26 ++++++++++++++++++++++++++
 scripts/kconfig/expr.h                    |    2 +-
 scripts/kconfig/symbol.c                  |    3 ---
 8 files changed, 61 insertions(+), 20 deletions(-)

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