[4/4] kconfig: Add LSMOD=file to override the lsmod for localmodconfig

Commit Message

Steven Rostedt Feb. 3, 2010, 3:46 p.m. UTC

None

Patch

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 006c96f..85b9065 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -30,9 +30,18 @@  silentoldconfig: $(obj)/conf
 	$(Q)mkdir -p include/generated
 	$< -s $(Kconfig)
 
+# if no path is given, then use src directory to find file
+ifdef LSMOD
+LSMOD_F = $(shell if [ `basename $(LSMOD)` == $(LSMOD) ]; then \
+		echo $(objtree)/$(LSMOD);			\
+	else							\
+		echo $(LSMOD);					\
+	fi)
+endif
+
 localmodconfig: $(obj)/streamline_config.pl $(obj)/conf
 	$(Q)mkdir -p include/generated
-	$(Q)perl $< $(srctree) $(Kconfig) > .tmp.config
+	$(Q)perl $< $(srctree) $(Kconfig) $(LSMOD_F) > .tmp.config
 	$(Q)if [ -f .config ]; then 				\
 			cmp -s .tmp.config .config ||		\
 			(mv -f .config .config.old.1;		\
@@ -47,7 +56,7 @@  localmodconfig: $(obj)/streamline_config.pl $(obj)/conf
 
 localyesconfig: $(obj)/streamline_config.pl $(obj)/conf
 	$(Q)mkdir -p include/generated
-	$(Q)perl $< $(srctree) $(Kconfig) > .tmp.config
+	$(Q)perl $< $(srctree) $(Kconfig) $(LSMOD_F) > .tmp.config
 	$(Q)sed -i s/=m/=y/ .tmp.config
 	$(Q)if [ -f .config ]; then 				\
 			cmp -s .tmp.config .config ||		\
diff --git a/scripts/kconfig/streamline_config.pl b/scripts/kconfig/streamline_config.pl
index d7f7db7..afbd54a 100644
--- a/scripts/kconfig/streamline_config.pl
+++ b/scripts/kconfig/streamline_config.pl
@@ -113,6 +113,7 @@  find_config;
 # Get the build source and top level Kconfig file (passed in)
 my $ksource = $ARGV[0];
 my $kconfig = $ARGV[1];
+my $lsmod_file = $ARGV[2];
 
 my @makefiles = `find $ksource -name Makefile`;
 my %depends;
@@ -263,21 +264,36 @@  foreach my $makefile (@makefiles) {
 
 my %modules;
 
-# see what modules are loaded on this system
-my $lsmod;
-
-foreach $dir ( ("/sbin", "/bin", "/usr/sbin", "/usr/bin") ) {
-    if ( -x "$dir/lsmod" ) {
-	$lsmod = "$dir/lsmod";
-	last;
+if (defined($lsmod_file)) {
+    if ( ! -f $lsmod_file) {
+	die "$lsmod_file not found";
+    }
+    if ( -x $lsmod_file) {
+	# the file is executable, run it
+	open(LIN, "$lsmod_file|");
+    } else {
+	# Just read the contents
+	open(LIN, "$lsmod_file");
     }
+} else {
+
+    # see what modules are loaded on this system
+    my $lsmod;
+
+    foreach $dir ( ("/sbin", "/bin", "/usr/sbin", "/usr/bin") ) {
+	if ( -x "$dir/lsmod" ) {
+	    $lsmod = "$dir/lsmod";
+	    last;
+	}
 }
-if (!defined($lsmod)) {
-    # try just the path
-    $lsmod = "lsmod";
+    if (!defined($lsmod)) {
+	# try just the path
+	$lsmod = "lsmod";
+    }
+
+    open(LIN,"$lsmod|") || die "Can not call lsmod with $lsmod";
 }
 
-open(LIN,"$lsmod|") || die "Can not call lsmod with $lsmod";
 while (<LIN>) {
 	next if (/^Module/);  # Skip the first line.
 	if (/^(\S+)/) {