X-Git-Url: https://ruderich.org/simon/gitweb/?a=blobdiff_plain;f=bin%2Fblhc;h=4be8e84bfdccba8ff7d165bee13244d0c48286c2;hb=3b0570352219e1c0cc5d15fa07892444c2561f11;hp=0c2ba90e922ba4e6a4887f8d98cf7561825bbccf;hpb=5dd19bb96effb0b40c26bb669dd0f8ef176ebf40;p=blhc%2Fblhc.git

diff --git a/bin/blhc b/bin/blhc
index 0c2ba90..4be8e84 100755
--- a/bin/blhc
+++ b/bin/blhc
@@ -38,8 +38,11 @@ my $cc_regex = qr/
     /x;
 # Full regex which matches the complete compiler name. Used in a few places to
 # prevent false negatives.
+my $cc_regex_full_prefix = qr/
+    [a-z0-9_]+-(?:linux-|kfreebsd-)?gnu(?:eabi|eabihf)?
+    /x;
 my $cc_regex_full = qr/
-    (?:[a-z0-9_]+-(?:linux-|kfreebsd-)?gnu(?:eabi|eabihf)?-)?
+    (?:$cc_regex_full_prefix-)?
     $cc_regex
     /x;
 # Regex to check if a line contains a compiler command.
@@ -943,6 +946,16 @@ foreach my $file (@ARGV) {
                 next if     not $before =~ /$cc_regex_normal/o
                         and not $after  =~ /$cc_regex_normal/o;
             }
+            # Ignore false positives caused by gcc -v. It outputs a line
+            # looking like a normal compiler line but which is sometimes
+            # missing hardening flags, although the normal compiler line
+            # contains them.
+            next if $line =~ m{^\s+/usr/lib/gcc/$cc_regex_full_prefix/
+                                   [0-9.]+/cc1(?:plus)?}xo;
+            # Ignore false positive with `rm` which may remove files which
+            # look like a compiler executable thus causing the line to be
+            # treated as a normal compiler line.
+            next if $line =~ m{^\s*rm\s+};
 
             # Check if additional hardening options were used. Used to ensure
             # they are used for the complete build.