X-Git-Url: https://ruderich.org/simon/gitweb/?p=blhc%2Fblhc.git;a=blobdiff_plain;f=bin%2Fblhc;h=5e8e0181356613dca5de8afe591ce3ab24a5d684;hp=4682d9b86f0d22c210653665ced35f11d893566e;hb=f0ae7b1580cd26bcf44dc5b780f1c2e081314479;hpb=bd7b1799dc0a22cf13fcd82584c06ed8c67e1117

diff --git a/bin/blhc b/bin/blhc
index 4682d9b..5e8e018 100755
--- a/bin/blhc
+++ b/bin/blhc
@@ -31,6 +31,7 @@ our $VERSION = '0.01';
 
 # Regex to catch compiler commands.
 my $cc_regex = qr/
+    (?<!\s-)               # ignore options, e.g. "-c++" [sic!] (used by swig)
     (?<!\.)                # ignore file names, e.g. "test.gcc"
     (?:cc|gcc|g\+\+|c\+\+)
     (?:-[\d.]+)?           # version suffix, e.g. "gcc-4.6"
@@ -342,7 +343,7 @@ sub pic_pie_conflict {
 sub is_non_verbose_build {
     my ($line, $next_line, $skip_ref) = @_;
 
-    if (not ($line =~ /^checking if you want to see long compiling messages\.\.\. no/
+    if (not (index($line, 'checking if you want to see long compiling messages... no') == 0
                 or $line =~ /^\s*\[?(?:CC|CCLD|C\+\+|CXX|CXXLD|LD|LINK)\]?\s+(.+?)$/
                 or $line =~ /^\s*(?:C|c)ompiling\s+(.+?)(?:\.\.\.)?$/
                 or $line =~ /^\s*(?:B|b)uilding (?:program|shared library)\s+(.+?)$/
@@ -377,7 +378,7 @@ sub is_non_verbose_build {
         $file =~ m{/([^/\s]+)$};
         $file = $1;
 
-        if ($next_line =~ /\Q$file\E/ and $next_line =~ /$cc_regex/o) {
+        if (index($next_line, $file) != -1 and $next_line =~ /$cc_regex/o) {
             # We still have to skip the current line as it doesn't contain any
             # compiler commands.
             ${$skip_ref} = 1;
@@ -427,6 +428,7 @@ my $option_help        = 0;
 my $option_version     = 0;
 my $option_pie         = 0;
 my $option_bindnow     = 0;
+my @option_ignore_arch = ();
 my @option_ignore_flag = ();
 my @option_ignore_line = ();
 my $option_all         = 0;
@@ -441,6 +443,7 @@ if (not Getopt::Long::GetOptions(
             'bindnow'       => \$option_bindnow,
             'all'           => \$option_all,
             # Ignore.
+            'ignore-arch=s' => \@option_ignore_arch,
             'ignore-flag=s' => \@option_ignore_flag,
             'ignore-line=s' => \@option_ignore_line,
             # Misc.
@@ -532,15 +535,25 @@ foreach my $file (@ARGV) {
     my $harden_pie     = $option_pie;     # defaults to 0
 
     while (my $line = <$fh>) {
+        # Detect architecture automatically unless overridden. For buildd logs
+        # only, doesn't use the dpkg-buildpackage header. Necessary to ignore
+        # build logs which aren't built (wrong architecture, build error,
+        # etc.).
+        if (not $arch
+                and $line =~ /^Architecture: (.+)$/) {
+            $arch = $1;
+        }
+
         # dpkg-buildflags only provides hardening flags since 1.16.1, don't
         # check for hardening flags in buildd mode if an older dpkg-dev is
         # used. Default flags (-g -O2) are still checked.
         #
         # Packages which were built before 1.16.1 but used their own hardening
         # flags are not checked.
-        if ($option_buildd and $line =~ /^Toolchain package versions: /) {
+        if ($option_buildd
+                and index($line, 'Toolchain package versions: ') == 0) {
             require Dpkg::Version;
-            if ($line !~ /\bdpkg-dev_(\S+)/
+            if (not $line =~ /\bdpkg-dev_(\S+)/
                     or Dpkg::Version::version_compare($1, '1.16.1') < 0) {
                 $harden_format  = 0;
                 $harden_fortify = 0;
@@ -557,7 +570,7 @@ foreach my $file (@ARGV) {
         # enabled, even though they may be not correctly set and are missing
         # when build with later CMake versions. Thanks to Aron Xu for letting
         # me know.
-        if ($line =~ /^Package versions: /
+        if (index($line, 'Package versions: ') == 0
                 and $line =~ /\bcmake_(\S+)/
                 and ($1 eq '2.8.7-1' or $1 eq '2.8.7-2')) {
             if (not $option_buildd) {
@@ -570,7 +583,8 @@ foreach my $file (@ARGV) {
 
         # If hardening wrapper is used (wraps calls to gcc and adds hardening
         # flags automatically) we can't perform any checks, abort.
-        if ($line =~ /^Build-Depends: .*\bhardening-wrapper\b/) {
+        if (index($line, 'Build-Depends: ') == 0
+                and $line =~ /\bhardening-wrapper\b/) {
             if (not $option_buildd) {
                 error_hardening_wrapper();
             } else {
@@ -582,7 +596,7 @@ foreach my $file (@ARGV) {
 
         # We skip over unimportant lines at the beginning of the log to
         # prevent false positives.
-        last if $line =~ /^dpkg-buildpackage:/;
+        last if index($line, 'dpkg-buildpackage: ') == 0;
     }
 
     # Input lines, contain only the lines with compiler commands.
@@ -605,7 +619,7 @@ foreach my $file (@ARGV) {
         # Ignore compiler warnings for now.
         next if $line =~ /$warning_regex/o;
 
-        if (not $option_buildd and $line =~ /\033/) { # esc
+        if (not $option_buildd and index($line, "\033") != -1) { # esc
             # Remove all ANSI color sequences which are sometimes used in
             # non-verbose builds.
             $line = Term::ANSIColor::colorstrip($line);
@@ -622,7 +636,7 @@ foreach my $file (@ARGV) {
 
         # One line may contain multiple commands (";"). Treat each one as
         # single line. parse_line() is slow, only use it when necessary.
-        my @line = (not $line =~ /;/)
+        my @line = (index($line, ';') == -1)
                  ? ($line)
                  : map {
                        # Ensure newline at the line end - necessary for
@@ -640,7 +654,7 @@ foreach my $file (@ARGV) {
                 $complete_line .= ' ' . $line;
             }
             # Line continuation, line ends with "\".
-            if ($line =~ /\\\s*$/) {
+            if ($line =~ /\\$/) {
                 $continuation = 1;
                 # Start line continuation.
                 if (not defined $complete_line) {
@@ -686,6 +700,16 @@ foreach my $file (@ARGV) {
 
     close $fh;
 
+    # Ignore arch if requested.
+    if (scalar @option_ignore_arch > 0 and $arch) {
+        foreach my $ignore (@option_ignore_arch) {
+            if ($arch eq $ignore) {
+                print "ignoring architecture '$arch'\n";
+                next FILE;
+            }
+        }
+    }
+
     if (scalar @input == 0) {
         if (not $option_buildd) {
             print "No compiler commands!\n";
@@ -866,7 +890,7 @@ LINE:
                 # are missing.
                 and not pic_pie_conflict($line, $harden_pie, \@missing, @def_cflags_pie)
                 # Assume dpkg-buildflags returns the correct flags.
-                and not $line =~ /`dpkg-buildflags --get CFLAGS`/) {
+                and index($line, '`dpkg-buildflags --get CFLAGS`') == -1) {
             if (not $option_buildd) {
                 error_flags('CFLAGS missing', \@missing, \%flag_renames, $input[$i]);
             } else {
@@ -879,7 +903,7 @@ LINE:
                 # are missing.
                 and not pic_pie_conflict($line, $harden_pie, \@missing, @def_cflags_pie)
                 # Assume dpkg-buildflags returns the correct flags.
-                and not $line =~ /`dpkg-buildflags --get CXXFLAGS`/) {
+                and index($line, '`dpkg-buildflags --get CXXFLAGS`') == -1) {
             if (not $option_buildd) {
                 error_flags('CXXFLAGS missing', \@missing, \%flag_renames, $input[$i]);
             } else {
@@ -889,7 +913,7 @@ LINE:
         }
         if ($preprocess and not all_flags_used($line, \@missing, @cppflags)
                 # Assume dpkg-buildflags returns the correct flags.
-                and not $line =~ /`dpkg-buildflags --get CPPFLAGS`/) {
+                and index($line, '`dpkg-buildflags --get CPPFLAGS`') == -1) {
             if (not $option_buildd) {
                 error_flags('CPPFLAGS missing', \@missing, \%flag_renames, $input[$i]);
             } else {
@@ -901,7 +925,7 @@ LINE:
                 # Same here, -fPIC conflicts with -fPIE.
                 and not pic_pie_conflict($line, $harden_pie, \@missing, @def_ldflags_pie)
                 # Assume dpkg-buildflags returns the correct flags.
-                and not $line =~ /`dpkg-buildflags --get LDFLAGS`/) {
+                and index($line, '`dpkg-buildflags --get LDFLAGS`') == -1) {
             if (not $option_buildd) {
                 error_flags('LDFLAGS missing', \@missing, \%flag_renames, $input[$i]);
             } else {
@@ -1017,6 +1041,12 @@ Don't require Term::ANSIColor.
 
 Use colored (ANSI) output for warning messages.
 
+=item B<--ignore-arch> I<arch>
+
+Ignore build logs from architectures matching I<arch>. I<arch> is a string.
+
+Used to prevent false positives. This option can be specified multiple times.
+
 =item B<--ignore-flag> I<flag>
 
 Don't print an error when the specific flag is missing in a compiler line.