From 81630a3b38c22102dce3a15019db546af209344d Mon Sep 17 00:00:00 2001 From: Philipp Tomsich Date: Tue, 8 Aug 2017 15:26:12 +0200 Subject: [PATCH] scripts: setlocalversion: safely extract variables from auto.conf using awk Moving SPL_LDSCRIPT to Kconfig triggered an unfortunate attempt of command substitution, as the sourced auto.conf may include $(ARCH) which tries to execute a command 'ARCH'. This showed up as a warning similar to the following: include/config/auto.conf: line 209: ARCH: command not found This change does no longer attempt to source auto.conf, but rather passes it through awk to retrieve the values for CONFIG_LOCALVERSION and CONFIG_LOCALVERSION_AUTO. This will also mitigate the risk of unintended command substitution. Signed-off-by: Philipp Tomsich Reported-by: Andy Yan Reviewed-by: Tom Rini Reviewed-by: Klaus Goger Reviewed-by: Jakob Unterwurzacher --- scripts/setlocalversion | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/scripts/setlocalversion b/scripts/setlocalversion index 63d91e22ed..8564bedd1a 100755 --- a/scripts/setlocalversion +++ b/scripts/setlocalversion @@ -141,7 +141,11 @@ if $scm_only; then fi if test -e include/config/auto.conf; then - . include/config/auto.conf + # We are interested only in CONFIG_LOCALVERSION and + # CONFIG_LOCALVERSION_AUTO, so extract these in a safe + # way (i.e. w/o sourcing auto.conf) + CONFIG_LOCALVERSION=`cat include/config/auto.conf | awk -F '=' '/^CONFIG_LOCALVERSION=/ {print $2}'` + CONFIG_LOCALVERSION_AUTO=`cat include/config/auto.conf | awk -F '=' '/^CONFIG_LOCALVERSION_AUTO=/ {print $2}'` else echo "Error: kernelrelease not valid - run 'make prepare' to update it" exit 1 -- 2.39.5