Currently, scripts/config mangles the config option symbols to always
be upper-case.
While the Linux kernel almost exclusively uses upper-case symbols, there
are still a few symbols with lower-case which this script can not handle:
$ grep -r -E '^[[:space:]]*config[[:space:]]+[^:space:]]*[[:lower:]]' .
./arch/powerpc/platforms/8xx/Kconfig:config 8xx_COPYBACK
./arch/powerpc/platforms/8xx/Kconfig:config 8xx_GPIO
./arch/powerpc/platforms/8xx/Kconfig:config 8xx_CPU6
./arch/powerpc/platforms/8xx/Kconfig:config 8xx_CPU15
./arch/powerpc/platforms/Kconfig.cputype:config 6xx
./arch/powerpc/platforms/Kconfig.cputype:config 8xx
./arch/powerpc/platforms/Kconfig.cputype:config 4xx
./arch/powerpc/Kconfig:config 4xx_SOC
./drivers/watchdog/Kconfig:config 8xxx_WDT
Also, other projects that use kconfig may allow for lower- or mixed-case
symbols, and may find easier to reuse this script than implement each
their own (potentially flawed) logic. For such a use-case, see:
http://marc.info/?l=linux-kbuild&m=133409932115848&w=2
With this patch, if the KCONFIG_CASE environment variable is set to (with
no quotes):
- 'upper': force symbols to upper-case
- 'lower': force symbols to lower-case
The default if KCONFIG_CASE is not set, or is set and empty, or is set to
any other value, is to not change the symbol's case.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@xxxxxxx>
---
scripts/config | 15 +++++++++++++--
1 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/scripts/config b/scripts/config
index ed6653e..5bae72d 100755
--- a/scripts/config
+++ b/scripts/config
@@ -29,7 +29,11 @@ options:
--file .config file to change (default .config)
config doesn't check the validity of the .config file. This is done at next
- make time.
+make time.
+
+If the variable KCONFIG_CASE is set in the environment to either 'upper' or
+'lower', option symbols will be forced to the corresponding case. Any other
+value (or if it is not set) leaves the symbol's case unchanged.
EOL
exit 1
}
@@ -44,7 +48,14 @@ checkarg() {
ARG="${ARG/CONFIG_/}"
;;
esac
- ARG="`echo $ARG | tr a-z A-Z`"
+ case "${KCONFIG_CASE}" in
+ upper)
+ ARG="`echo $ARG | tr a-z A-Z`"
+ ;;
+ lower)
+ ARG="`echo $ARG | tr A-Z a-z`"
+ ;;
+ esac
}
set_var() {
--
1.7.2.5
--
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