Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next: (53 commits)
  .gitignore: ignore *.lzma files
  kbuild: add generic --set-str option to scripts/config
  kbuild: simplify argument loop in scripts/config
  kbuild: handle non-existing options in scripts/config
  kallsyms: generalize text region handling
  kallsyms: support kernel symbols in Blackfin on-chip memory
  documentation: make version fix
  kbuild: fix a compile warning
  gitignore: Add GNU GLOBAL files to top .gitignore
  kbuild: fix delay in setlocalversion on readonly source
  README: fix misleading pointer to the defconf directory
  vmlinux.lds.h update
  kernel-doc: cleanup perl script
  Improve vmlinux.lds.h support for arch specific linker scripts
  kbuild: fix headers_exports with boolean expression
  kbuild/headers_check: refine extern check
  kbuild: fix "Argument list too long" error for "make headers_check",
  ignore *.patch files
  Remove bashisms from scripts
  menu: fix embedded menu presentation
  ...

1 files changed, 41 insertions, 46 deletions

diff --git a/scripts/config b/scripts/config
index db6084b78a10..608d7fdb13e8 100755
--- a/scripts/config
+++ b/scripts/config
@@ -9,8 +9,10 @@ config options command ...
 commands:
 	--enable|-e option   Enable option
 	--disable|-d option  Disable option
-	--module|-m option      Turn option into a module
-	--state|-s option       Print state of option (n,y,m,undef)
+	--module|-m option   Turn option into a module
+	--set-str option value
+	                     Set option to "value"
+	--state|-s option    Print state of option (n,y,m,undef)
 
 	--enable-after|-E beforeopt option
                              Enable option directly after other option
@@ -26,8 +28,6 @@ options:
 
 config doesn't check the validity of the .config file. This is done at next
  make time.
-The options need to be already in the file before they can be changed,
-but sometimes you can cheat with the --*-after options.
 EOL
 	exit 1
 }
@@ -45,8 +45,18 @@ checkarg() {
 	ARG="`echo $ARG | tr a-z A-Z`"
 }
 
-replace() {
-	sed -i -e "$@" $FN
+set_var() {
+	local name=$1 new=$2 before=$3
+
+	name_re="^($name=|# $name is not set)"
+	before_re="^($before=|# $before is not set)"
+	if test -n "$before" && grep -Eq "$before_re" "$FN"; then
+		sed -ri "/$before_re/a $new" "$FN"
+	elif grep -Eq "$name_re" "$FN"; then
+		sed -ri "s:$name_re.*:$new:" "$FN"
+	else
+		echo "$new" >>"$FN"
+	fi
 }
 
 if [ "$1" = "--file" ]; then
@@ -54,8 +64,7 @@ if [ "$1" = "--file" ]; then
 	if [ "$FN" = "" ] ; then
 		usage
 	fi
-	shift
-	shift
+	shift 2
 else
 	FN=.config
 fi
@@ -68,27 +77,39 @@ while [ "$1" != "" ] ; do
 	CMD="$1"
 	shift
 	case "$CMD" in
-	--enable|-e)
+	--refresh)
+		;;
+	--*-after)
+		checkarg "$1"
+		A=$ARG
+		checkarg "$2"
+		B=$ARG
+		shift 2
+		;;
+	--*)
 		checkarg "$1"
-		replace "s/# CONFIG_$ARG is not set/CONFIG_$ARG=y/"
 		shift
 		;;
+	esac
+	case "$CMD" in
+	--enable|-e)
+		set_var "CONFIG_$ARG" "CONFIG_$ARG=y"
+		;;
 
 	--disable|-d)
-		checkarg "$1"
-		replace "s/CONFIG_$ARG=[my]/# CONFIG_$ARG is not set/"
-		shift
+		set_var "CONFIG_$ARG" "# CONFIG_$ARG is not set"
 		;;
 
 	--module|-m)
-		checkarg "$1"
-		replace "s/CONFIG_$ARG=y/CONFIG_$ARG=m/" \
-			-e "s/# CONFIG_$ARG is not set/CONFIG_$ARG=m/"
+		set_var "CONFIG_$ARG" "CONFIG_$ARG=m"
+		;;
+
+	--set-str)
+		set_var "CONFIG_$ARG" "CONFIG_$ARG=\"$1\""
 		shift
 		;;
 
 	--state|-s)
-		checkarg "$1"
 		if grep -q "# CONFIG_$ARG is not set" $FN ; then
 			echo n
 		else
@@ -101,44 +122,18 @@ while [ "$1" != "" ] ; do
 				echo "$V"
 			fi
 		fi
-		shift
 		;;
 
 	--enable-after|-E)
-		checkarg "$1"
-		A=$ARG
-		checkarg "$2"
-		B=$ARG
-		replace "/CONFIG_$A=[my]/aCONFIG_$B=y" \
-			-e "/# CONFIG_$ARG is not set/a/CONFIG_$ARG=y" \
-			-e "s/# CONFIG_$ARG is not set/CONFIG_$ARG=y/"
-		shift
-		shift
+		set_var "CONFIG_$B" "CONFIG_$B=y" "CONFIG_$A"
 		;;
 
 	--disable-after|-D)
-		checkarg "$1"
-		A=$ARG
-		checkarg "$2"
-		B=$ARG
-		replace "/CONFIG_$A=[my]/a# CONFIG_$B is not set" \
-		-e "/# CONFIG_$ARG is not set/a/# CONFIG_$ARG is not set" \
-		-e "s/CONFIG_$ARG=[my]/# CONFIG_$ARG is not set/"
-		shift
-		shift
+		set_var "CONFIG_$B" "# CONFIG_$B is not set" "CONFIG_$A"
 		;;
 
 	--module-after|-M)
-		checkarg "$1"
-		A=$ARG
-		checkarg "$2"
-		B=$ARG
-		replace "/CONFIG_$A=[my]/aCONFIG_$B=m" \
-			-e "/# CONFIG_$ARG is not set/a/CONFIG_$ARG=m" \
-			-e "s/CONFIG_$ARG=y/CONFIG_$ARG=m/" \
-			-e "s/# CONFIG_$ARG is not set/CONFIG_$ARG=m/"
-		shift
-		shift
+		set_var "CONFIG_$B" "CONFIG_$B=m" "CONFIG_$A"
 		;;
 
 	# undocumented because it ignores --file (fixme)