kconfig/streamline-config.pl: Simplify backslash line concatination

Simplify the way lines ending with backslashes (continuation) in Makefiles
is parsed. This is needed to implement a necessary fix.

Tested-by: Thomas Lange <thomas-lange2@gmx.de>
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

diff --git a/scripts/kconfig/streamline_config.pl b/scripts/kconfig/streamline_config.pl
index ec7afce..42ef5ea 100644 (file)
--- a/scripts/kconfig/streamline_config.pl
+++ b/scripts/kconfig/streamline_config.pl
@@ -253,17 +253,22 @@ if ($kconfig) {
 # Read all Makefiles to map the configs to the objects
 foreach my $makefile (@makefiles) {
 
-    my $cont = 0;
+    my $line = "";
 
     open(MIN,$makefile) || die "Can't open $makefile";
     while (<MIN>) {
-       my $objs;
-
-       # is this a line after a line with a backslash?
-       if ($cont && /(\S.*)$/) {
-           $objs = $1;
+       # if this line ends with a backslash, continue
+       chomp;
+       if (/^(.*)\\$/) {
+           $line .= $1;
+           next;
        }
-       $cont = 0;
+
+       $line .= $_;
+       $_ = $line;
+       $line = "";
+
+       my $objs;
 
        # collect objects after obj-$(CONFIG_FOO_BAR)
        if (/obj-\$\((CONFIG_[^\)]*)\)\s*[+:]?=\s*(.*)/) {
@@ -271,12 +276,6 @@ foreach my $makefile (@makefiles) {
            $objs = $2;
        }
        if (defined($objs)) {
-           # test if the line ends with a backslash
-           if ($objs =~ m,(.*)\\$,) {
-               $objs = $1;
-               $cont = 1;
-           }
-
            foreach my $obj (split /\s+/,$objs) {
                $obj =~ s/-/_/g;
                if ($obj =~ /(.*)\.o$/) {