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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-05-28 18:21:39 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-05-29 03:28:58 +0900 |
| commit | f1089c92da791034af73478159626007cba7f092 (patch) | |
| tree | ef96a153f0bd61a3cf2fbff9d083c4043f7bde22 /init | |
| parent | e08d6de4e5321aefa8ac2ba72d464dd9727365e8 (diff) | |
| download | lwn-f1089c92da791034af73478159626007cba7f092.tar.gz lwn-f1089c92da791034af73478159626007cba7f092.zip | |
kbuild: remove CONFIG_CROSS_COMPILE support
Kbuild provides a couple of ways to specify CROSS_COMPILE:
[1] Command line
[2] Environment
[3] arch/*/Makefile (only some architectures)
[4] CONFIG_CROSS_COMPILE
[4] is problematic for the compiler capability tests in Kconfig.
CONFIG_CROSS_COMPILE allows users to change the compiler prefix from
'make menuconfig', etc. It means, the compiler options would have
to be all re-calculated everytime CONFIG_CROSS_COMPILE is changed.
To avoid complexity and performance issues, I'd like to evaluate
the shell commands statically, i.e. only parsing Kconfig files.
I guess the majority is [1] or [2]. Currently, there are only
5 defconfig files that specify CONFIG_CROSS_COMPILE.
arch/arm/configs/lpc18xx_defconfig
arch/hexagon/configs/comet_defconfig
arch/nds32/configs/defconfig
arch/openrisc/configs/or1ksim_defconfig
arch/openrisc/configs/simple_smp_defconfig
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/init/Kconfig b/init/Kconfig index 18b151f0ddc1..15aae32e0719 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -54,15 +54,6 @@ config INIT_ENV_ARG_LIMIT Maximum of each of the number of arguments and environment variables passed to init from the kernel command line. - -config CROSS_COMPILE - string "Cross-compiler tool prefix" - help - Same as running 'make CROSS_COMPILE=prefix-' but stored for - default make runs in this kernel build directory. You don't - need to set this unless you want the configured kernel build - directory to select the cross-compiler automatically. - config COMPILE_TEST bool "Compile also drivers which will not load" depends on !UML |