ktest: Remove indexes from warnings check

The index of a line where a warning is tested can be returned
differently on different versions of gcc (or same version compiled
differently). That is, a tab + space can give different results. This
causes the warning check to produce a false positive. Removing the
index from the check fixes this issue.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 26 insertions, 8 deletions

diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index f3bb5da3193b..4e67d52eb3a2 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -1945,6 +1945,27 @@ sub start_monitor_and_boot {
 my $check_build_re = ".*:.*(warning|error|Error):.*";
 my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
 
+sub process_warning_line {
+    my ($line) = @_;
+
+    chomp $line;
+
+    # for distcc heterogeneous systems, some compilers
+    # do things differently causing warning lines
+    # to be slightly different. This makes an attempt
+    # to fixe those issues.
+
+    # chop off the index into the line
+    # using distcc, some compilers give different indexes
+    # depending on white space
+    $line =~ s/^(\s*\S+:\d+:)\d+/$1/;
+
+    # Some compilers use UTF-8 extended for quotes and some don't.
+    $line =~ s/$utf8_quote/'/g;
+
+    return $line;
+}
+
 # Read buildlog and check against warnings file for any
 # new warnings.
 #
@@ -1965,8 +1986,9 @@ sub check_buildlog {
 
         while (<IN>) {
             if (/$check_build_re/) {
-                chomp;
-                $warnings_list{$_} = 1;
+                my $warning = process_warning_line $_;
+                
+                $warnings_list{$warning} = 1;
             }
         }
         close(IN);
@@ -1978,13 +2000,9 @@ sub check_buildlog {
     open(IN, $buildlog) or dodie "Can't open $buildlog";
     while (<IN>) {
         if (/$check_build_re/) {
+            my $warning = process_warning_line $_;
 
-            # Some compilers use UTF-8 extended for quotes
-            # for distcc heterogeneous systems, this causes issues
-            s/$utf8_quote/'/g;
-
-            chomp;
-            if (!defined $warnings_list{$_}) {
+            if (!defined $warnings_list{$warning}) {
                 fail "New warning found (not in $warnings_file)\n$_\n";
                 $no_reboot = $save_no_reboot;
                 return 0;