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authorMasahiro Yamada <yamada.masahiro@socionext.com>2018-05-28 18:21:39 +0900
committerMasahiro Yamada <yamada.masahiro@socionext.com>2018-05-29 03:28:58 +0900
commitf1089c92da791034af73478159626007cba7f092 (patch)
treeef96a153f0bd61a3cf2fbff9d083c4043f7bde22 /init
parente08d6de4e5321aefa8ac2ba72d464dd9727365e8 (diff)
downloadlinux-f1089c92da791034af73478159626007cba7f092.tar.gz
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/Kconfig9
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