Subversion Repositories QNX 8.QNX8 LLVM/Clang compiler suite

#!/usr/bin/env perl

#

# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.

# See https://llvm.org/LICENSE.txt for license information.

# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

#

##===----------------------------------------------------------------------===##

#

#  A script designed to interpose between the build system and gcc.  It invokes

#  both gcc and the static analyzer.

#

##===----------------------------------------------------------------------===##

use strict;

use warnings;

use FindBin;

use Cwd qw/ getcwd abs_path /;

use File::Temp qw/ tempfile /;

use File::Path qw / mkpath /;

use File::Basename;

use Text::ParseWords;

##===----------------------------------------------------------------------===##

# List form 'system' with STDOUT and STDERR captured.

##===----------------------------------------------------------------------===##

sub silent_system {

  my $HtmlDir = shift;

  my $Command = shift;

  # Save STDOUT and STDERR and redirect to a temporary file.

  open OLDOUT, ">&", \*STDOUT;

  open OLDERR, ">&", \*STDERR;

  my ($TmpFH, $TmpFile) = tempfile("temp_buf_XXXXXX",

                                   DIR => $HtmlDir,

                                   UNLINK => 1);

  open(STDOUT, ">$TmpFile");

  open(STDERR, ">&", \*STDOUT);

  # Invoke 'system', STDOUT and STDERR are output to a temporary file.

  system $Command, @_;

  # Restore STDOUT and STDERR.

  open STDOUT, ">&", \*OLDOUT;

  open STDERR, ">&", \*OLDERR;

  return $TmpFH;

}

##===----------------------------------------------------------------------===##

# Compiler command setup.

##===----------------------------------------------------------------------===##

# Search in the PATH if the compiler exists

sub SearchInPath {

    my $file = shift;

    foreach my $dir (split (':', $ENV{PATH})) {

        if (-x "$dir/$file") {

            return 1;

        }

    }

    return 0;

}

my $Compiler;

my $Clang;

my $DefaultCCompiler;

my $DefaultCXXCompiler;

my $IsCXX;

my $AnalyzerTarget;

# If on OSX, use xcrun to determine the SDK root.

my $UseXCRUN = 0;

if (`uname -s` =~ m/Darwin/) {

  $DefaultCCompiler = 'clang';

  $DefaultCXXCompiler = 'clang++';

  # Older versions of OSX do not have xcrun to

  # query the SDK location.

  if (-x "/usr/bin/xcrun") {

    $UseXCRUN = 1;

  }

} elsif (`uname -s` =~ m/(FreeBSD|OpenBSD)/) {

  $DefaultCCompiler = 'cc';

  $DefaultCXXCompiler = 'c++';

} else {

  $DefaultCCompiler = 'gcc';

  $DefaultCXXCompiler = 'g++';

}

if ($FindBin::Script =~ /c\+\+-analyzer/) {

  $Compiler = $ENV{'CCC_CXX'};

  if (!defined $Compiler || (! -x $Compiler && ! SearchInPath($Compiler))) { $Compiler = $DefaultCXXCompiler; }

  $Clang = $ENV{'CLANG_CXX'};

  if (!defined $Clang || ! -x $Clang) { $Clang = 'clang++'; }

  $IsCXX = 1

}

else {

  $Compiler = $ENV{'CCC_CC'};

  if (!defined $Compiler || (! -x $Compiler && ! SearchInPath($Compiler))) { $Compiler = $DefaultCCompiler; }

  $Clang = $ENV{'CLANG'};

  if (!defined $Clang || ! -x $Clang) { $Clang = 'clang'; }

  $IsCXX = 0

}

$AnalyzerTarget = $ENV{'CLANG_ANALYZER_TARGET'};

##===----------------------------------------------------------------------===##

# Cleanup.

##===----------------------------------------------------------------------===##

my $ReportFailures = $ENV{'CCC_REPORT_FAILURES'};

if (!defined $ReportFailures) { $ReportFailures = 1; }

my $CleanupFile;

my $ResultFile;

# Remove any stale files at exit.

END {

  if (defined $ResultFile && -z $ResultFile) {

    unlink($ResultFile);

  }

  if (defined $CleanupFile) {

    unlink($CleanupFile);

  }

}

##----------------------------------------------------------------------------##

#  Process Clang Crashes.

##----------------------------------------------------------------------------##

sub GetPPExt {

  my $Lang = shift;

  if ($Lang =~ /objective-c\+\+/) { return ".mii" };

  if ($Lang =~ /objective-c/) { return ".mi"; }

  if ($Lang =~ /c\+\+/) { return ".ii"; }

  return ".i";

}

# Set this to 1 if we want to include 'parser rejects' files.

my $IncludeParserRejects = 0;

my $ParserRejects = "Parser Rejects";

my $AttributeIgnored = "Attribute Ignored";

my $OtherError = "Other Error";

sub ProcessClangFailure {

  my ($Clang, $Lang, $file, $Args, $HtmlDir, $ErrorType, $ofile) = @_;

  my $Dir = "$HtmlDir/failures";

  mkpath $Dir;

  my $prefix = "clang_crash";

  if ($ErrorType eq $ParserRejects) {

    $prefix = "clang_parser_rejects";

  }

  elsif ($ErrorType eq $AttributeIgnored) {

    $prefix = "clang_attribute_ignored";

  }

  elsif ($ErrorType eq $OtherError) {

    $prefix = "clang_other_error";

  }

  # Generate the preprocessed file with Clang.

  my ($PPH, $PPFile) = tempfile( $prefix . "_XXXXXX",

                                 SUFFIX => GetPPExt($Lang),

                                 DIR => $Dir);

  close ($PPH);

  system $Clang, @$Args, "-E", "-o", $PPFile;

  # Create the info file.

  open (OUT, ">", "$PPFile.info.txt") or die "Cannot open $PPFile.info.txt\n";

  print OUT abs_path($file), "\n";

  print OUT "$ErrorType\n";

  print OUT "@$Args\n";

  close OUT;

  `uname -a >> $PPFile.info.txt 2>&1`;

  `"$Compiler" -v >> $PPFile.info.txt 2>&1`;

  rename($ofile, "$PPFile.stderr.txt");

  return (basename $PPFile);

}

##----------------------------------------------------------------------------##

#  Running the analyzer.

##----------------------------------------------------------------------------##

sub GetCCArgs {

  my $HtmlDir = shift;

  my $mode = shift;

  my $Args = shift;

  my $line;

  my $OutputStream = silent_system($HtmlDir, $Clang, "-###", $mode, @$Args);

  while (<$OutputStream>) {

    next if (!/\s"?-cc1"?\s/);

    $line = $_;

  }

  die "could not find clang line\n" if (!defined $line);

  # Strip leading and trailing whitespace characters.

  $line =~ s/^\s+|\s+$//g;

  my @items = quotewords('\s+', 0, $line);

  my $cmd = shift @items;

  die "cannot find 'clang' in 'clang' command\n" if (!($cmd =~ /clang/));

  return \@items;

}

sub Analyze {

  my ($Clang, $OriginalArgs, $AnalyzeArgs, $Lang, $Output, $Verbose, $HtmlDir,

      $file) = @_;

  my @Args = @$OriginalArgs;

  my $Cmd;

  my @CmdArgs;

  my @CmdArgsSansAnalyses;

  if ($Lang =~ /header/) {

    exit 0 if (!defined ($Output));

    $Cmd = 'cp';

    push @CmdArgs, $file;

    # Remove the PCH extension.

    $Output =~ s/[.]gch$//;

    push @CmdArgs, $Output;

    @CmdArgsSansAnalyses = @CmdArgs;

  }

  else {

    $Cmd = $Clang;

    # Create arguments for doing regular parsing.

    my $SyntaxArgs = GetCCArgs($HtmlDir, "-fsyntax-only", \@Args);

    @CmdArgsSansAnalyses = @$SyntaxArgs;

    # Create arguments for doing static analysis.

    if (defined $ResultFile) {

      push @Args, '-o', $ResultFile;

    }

    elsif (defined $HtmlDir) {

      push @Args, '-o', $HtmlDir;

    }

    if ($Verbose) {

      push @Args, "-Xclang", "-analyzer-display-progress";

    }

    foreach my $arg (@$AnalyzeArgs) {

      push @Args, "-Xclang", $arg;

    }

    if (defined $AnalyzerTarget) {

      push @Args, "-target", $AnalyzerTarget;

    }

    my $AnalysisArgs = GetCCArgs($HtmlDir, "--analyze", \@Args);

    @CmdArgs = @$AnalysisArgs;

  }

  my @PrintArgs;

  my $dir;

  if ($Verbose) {

    $dir = getcwd();

    print STDERR "\n[LOCATION]: $dir\n";

    push @PrintArgs,"'$Cmd'";

    foreach my $arg (@CmdArgs) {

        push @PrintArgs,"\'$arg\'";

    }

  }

  if ($Verbose == 1) {

    # We MUST print to stderr.  Some clients use the stdout output of

    # gcc for various purposes.

    print STDERR join(' ', @PrintArgs);

    print STDERR "\n";

  }

  elsif ($Verbose == 2) {

    print STDERR "#SHELL (cd '$dir' && @PrintArgs)\n";

  }

  # Save STDOUT and STDERR of clang to a temporary file and reroute

  # all clang output to ccc-analyzer's STDERR.

  # We save the output file in the 'crashes' directory if clang encounters

  # any problems with the file.

  my ($ofh, $ofile) = tempfile("clang_output_XXXXXX", DIR => $HtmlDir);

  my $OutputStream = silent_system($HtmlDir, $Cmd, @CmdArgs);

  while ( <$OutputStream> ) {

    print $ofh $_;

    print STDERR $_;

  }

  my $Result = $?;

  close $ofh;

  # Did the command die because of a signal?

  if ($ReportFailures) {

    if ($Result & 127 and $Cmd eq $Clang and defined $HtmlDir) {

      ProcessClangFailure($Clang, $Lang, $file, \@CmdArgsSansAnalyses,

                          $HtmlDir, "Crash", $ofile);

    }

    elsif ($Result) {

      if ($IncludeParserRejects && !($file =~/conftest/)) {

        ProcessClangFailure($Clang, $Lang, $file, \@CmdArgsSansAnalyses,

                            $HtmlDir, $ParserRejects, $ofile);

      } else {

        ProcessClangFailure($Clang, $Lang, $file, \@CmdArgsSansAnalyses,

                            $HtmlDir, $OtherError, $ofile);

      }

    }

    else {

      # Check if there were any unhandled attributes.

      if (open(CHILD, $ofile)) {

        my %attributes_not_handled;

        # Don't flag warnings about the following attributes that we

        # know are currently not supported by Clang.

        $attributes_not_handled{"cdecl"} = 1;

        my $ppfile;

        while (<CHILD>) {

          next if (! /warning: '([^\']+)' attribute ignored/);

          # Have we already spotted this unhandled attribute?

          next if (defined $attributes_not_handled{$1});

          $attributes_not_handled{$1} = 1;

          # Get the name of the attribute file.

          my $dir = "$HtmlDir/failures";

          my $afile = "$dir/attribute_ignored_$1.txt";

          # Only create another preprocessed file if the attribute file

          # doesn't exist yet.

          next if (-e $afile);

          # Add this file to the list of files that contained this attribute.

          # Generate a preprocessed file if we haven't already.

          if (!(defined $ppfile)) {

            $ppfile = ProcessClangFailure($Clang, $Lang, $file,

                                          \@CmdArgsSansAnalyses,

                                          $HtmlDir, $AttributeIgnored, $ofile);

          }

          mkpath $dir;

          open(AFILE, ">$afile");

          print AFILE "$ppfile\n";

          close(AFILE);

        }

        close CHILD;

      }

    }

  }

  unlink($ofile);

}

##----------------------------------------------------------------------------##

#  Lookup tables.

##----------------------------------------------------------------------------##

my %CompileOptionMap = (

  '-nostdinc' => 0,

  '-include' => 1,

  '-idirafter' => 1,

  '-imacros' => 1,

  '-iprefix' => 1,

  '-iquote' => 1,

  '-iwithprefix' => 1,

  '-iwithprefixbefore' => 1

);

my %LinkerOptionMap = (

  '-framework' => 1,

  '-fobjc-link-runtime' => 0

);

my %CompilerLinkerOptionMap = (

  '-Wwrite-strings' => 0,

  '-ftrapv-handler' => 1, # specifically call out separated -f flag

  '-mios-simulator-version-min' => 0, # This really has 1 argument, but always has '='

  '-isysroot' => 1,

  '-arch' => 1,

  '-m32' => 0,

  '-m64' => 0,

  '-stdlib' => 0, # This is really a 1 argument, but always has '='

  '--sysroot' => 1,

  '-target' => 1,

  '-v' => 0,

  '-mmacosx-version-min' => 0, # This is really a 1 argument, but always has '='

  '-miphoneos-version-min' => 0, # This is really a 1 argument, but always has '='

  '--target' => 0

);

my %IgnoredOptionMap = (

  '-MT' => 1,  # Ignore these preprocessor options.

  '-MF' => 1,

  '-fsyntax-only' => 0,

  '-save-temps' => 0,

  '-install_name' => 1,

  '-exported_symbols_list' => 1,

  '-current_version' => 1,

  '-compatibility_version' => 1,

  '-init' => 1,

  '-e' => 1,

  '-seg1addr' => 1,

  '-bundle_loader' => 1,

  '-multiply_defined' => 1,

  '-sectorder' => 3,

  '--param' => 1,

  '-u' => 1,

  '--serialize-diagnostics' => 1

);

my %LangMap = (

  'c'   => $IsCXX ? 'c++' : 'c',

  'cp'  => 'c++',

  'cpp' => 'c++',

  'cxx' => 'c++',

  'txx' => 'c++',

  'cc'  => 'c++',

  'C'   => 'c++',

  'ii'  => 'c++-cpp-output',

  'i'   => $IsCXX ? 'c++-cpp-output' : 'cpp-output',

  'm'   => 'objective-c',

  'mi'  => 'objective-c-cpp-output',

  'mm'  => 'objective-c++',

  'mii' => 'objective-c++-cpp-output',

);

my %UniqueOptions = (

  '-isysroot' => 0

);

##----------------------------------------------------------------------------##

# Languages accepted.

##----------------------------------------------------------------------------##

my %LangsAccepted = (

  "objective-c" => 1,

  "c" => 1,

  "c++" => 1,

  "objective-c++" => 1,

  "cpp-output" => 1,

  "objective-c-cpp-output" => 1,

  "c++-cpp-output" => 1

);

##----------------------------------------------------------------------------##

#  Main Logic.

##----------------------------------------------------------------------------##

my $Action = 'link';

my @CompileOpts;

my @LinkOpts;

my @Files;

my $Lang;

my $Output;

my %Uniqued;

# Forward arguments to gcc.

my $Status = system($Compiler,@ARGV);

if (defined $ENV{'CCC_ANALYZER_LOG'}) {

  print STDERR "$Compiler @ARGV\n";

}

if ($Status) { exit($Status >> 8); }

# Get the analysis options.

my $Analyses = $ENV{'CCC_ANALYZER_ANALYSIS'};

# Get the plugins to load.

my $Plugins = $ENV{'CCC_ANALYZER_PLUGINS'};

# Get the constraints engine.

my $ConstraintsModel = $ENV{'CCC_ANALYZER_CONSTRAINTS_MODEL'};

#Get the internal stats setting.

my $InternalStats = $ENV{'CCC_ANALYZER_INTERNAL_STATS'};

# Get the output format.

my $OutputFormat = $ENV{'CCC_ANALYZER_OUTPUT_FORMAT'};

if (!defined $OutputFormat) { $OutputFormat = "html"; }

# Get the config options.

my $ConfigOptions = $ENV{'CCC_ANALYZER_CONFIG'};

# Determine the level of verbosity.

my $Verbose = 0;

if (defined $ENV{'CCC_ANALYZER_VERBOSE'}) { $Verbose = 1; }

if (defined $ENV{'CCC_ANALYZER_LOG'}) { $Verbose = 2; }

# Get the HTML output directory.

my $HtmlDir = $ENV{'CCC_ANALYZER_HTML'};

# Get force-analyze-debug-code option.

my $ForceAnalyzeDebugCode = $ENV{'CCC_ANALYZER_FORCE_ANALYZE_DEBUG_CODE'};

my %DisabledArchs = ('ppc' => 1, 'ppc64' => 1);

my %ArchsSeen;

my $HadArch = 0;

my $HasSDK = 0;

# Process the arguments.

foreach (my $i = 0; $i < scalar(@ARGV); ++$i) {

  my $Arg = $ARGV[$i];

  my @ArgParts = split /=/,$Arg,2;

  my $ArgKey = $ArgParts[0];

  # Be friendly to "" in the argument list.

  if (!defined($ArgKey)) {

    next;

  }

  # Modes ccc-analyzer supports

  if ($Arg =~ /^-(E|MM?)$/) { $Action = 'preprocess'; }

  elsif ($Arg eq '-c') { $Action = 'compile'; }

  elsif ($Arg =~ /^-print-prog-name/) { exit 0; }

  # Specially handle duplicate cases of -arch

  if ($Arg eq "-arch") {

    my $arch = $ARGV[$i+1];

    # We don't want to process 'ppc' because of Clang's lack of support

    # for Altivec (also some #defines won't likely be defined correctly, etc.)

    if (!(defined $DisabledArchs{$arch})) { $ArchsSeen{$arch} = 1; }

    $HadArch = 1;

    ++$i;

    next;

  }

  # On OSX/iOS, record if an SDK path was specified.  This

  # is innocuous for other platforms, so the check just happens.

  if ($Arg =~ /^-isysroot/) {

    $HasSDK = 1;

  }

  # Options with possible arguments that should pass through to compiler.

  if (defined $CompileOptionMap{$ArgKey}) {

    my $Cnt = $CompileOptionMap{$ArgKey};

    push @CompileOpts,$Arg;

    while ($Cnt > 0) { ++$i; --$Cnt; push @CompileOpts, $ARGV[$i]; }

    next;

  }

  # Handle the case where there isn't a space after -iquote

  if ($Arg =~ /^-iquote.*/) {

    push @CompileOpts,$Arg;

    next;

  }

  # Options with possible arguments that should pass through to linker.

  if (defined $LinkerOptionMap{$ArgKey}) {

    my $Cnt = $LinkerOptionMap{$ArgKey};

    push @LinkOpts,$Arg;

    while ($Cnt > 0) { ++$i; --$Cnt; push @LinkOpts, $ARGV[$i]; }

    next;

  }

  # Options with possible arguments that should pass through to both compiler

  # and the linker.

  if (defined $CompilerLinkerOptionMap{$ArgKey}) {

    my $Cnt = $CompilerLinkerOptionMap{$ArgKey};

    # Check if this is an option that should have a unique value, and if so

    # determine if the value was checked before.

    if ($UniqueOptions{$Arg}) {

      if (defined $Uniqued{$Arg}) {

        $i += $Cnt;

        next;

      }

      $Uniqued{$Arg} = 1;

    }

    push @CompileOpts,$Arg;

    push @LinkOpts,$Arg;

    if (scalar @ArgParts == 1) {

      while ($Cnt > 0) {

        ++$i; --$Cnt;

        push @CompileOpts, $ARGV[$i];

        push @LinkOpts, $ARGV[$i];

      }

    }

    next;

  }

  # Ignored options.

  if (defined $IgnoredOptionMap{$ArgKey}) {

    my $Cnt = $IgnoredOptionMap{$ArgKey};

    while ($Cnt > 0) {

      ++$i; --$Cnt;

    }

    next;

  }

  # Compile mode flags.

  if ($Arg =~ /^-(?:[DIU]|isystem)(.*)$/) {

    my $Tmp = $Arg;

    if ($1 eq '') {

      # FIXME: Check if we are going off the end.

      ++$i;

      $Tmp = $Arg . $ARGV[$i];

    }

    push @CompileOpts,$Tmp;

    next;

  }

  if ($Arg =~ /^-m.*/) {

    push @CompileOpts,$Arg;

    next;

  }

  # Language.

  if ($Arg eq '-x') {

    $Lang = $ARGV[$i+1];

    ++$i; next;

  }

  # Output file.

  if ($Arg eq '-o') {

    ++$i;

    $Output = $ARGV[$i];

    next;

  }

  # Get the link mode.

  if ($Arg =~ /^-[l,L,O]/) {

    if ($Arg eq '-O') { push @LinkOpts,'-O1'; }

    elsif ($Arg eq '-Os') { push @LinkOpts,'-O2'; }

    else { push @LinkOpts,$Arg; }

    # Must pass this along for the __OPTIMIZE__ macro

    if ($Arg =~ /^-O/) { push @CompileOpts,$Arg; }

    next;

  }

  if ($Arg =~ /^-std=/) {

    push @CompileOpts,$Arg;

    next;

  }

  # Get the compiler/link mode.

  if ($Arg =~ /^-F(.+)$/) {

    my $Tmp = $Arg;

    if ($1 eq '') {

      # FIXME: Check if we are going off the end.

      ++$i;

      $Tmp = $Arg . $ARGV[$i];

    }

    push @CompileOpts,$Tmp;

    push @LinkOpts,$Tmp;

    next;

  }

  # Input files.

  if ($Arg eq '-filelist') {

    # FIXME: Make sure we aren't walking off the end.

    open(IN, $ARGV[$i+1]);

    while (<IN>) { s/\015?\012//; push @Files,$_; }

    close(IN);

    ++$i;

    next;

  }

  if ($Arg =~ /^-f/) {

    push @CompileOpts,$Arg;

    push @LinkOpts,$Arg;

    next;

  }

  # Handle -Wno-.  We don't care about extra warnings, but

  # we should suppress ones that we don't want to see.

  if ($Arg =~ /^-Wno-/) {

    push @CompileOpts, $Arg;

    next;

  }

  # Handle -Xclang some-arg. Add both arguments to the compiler options.

  if ($Arg =~ /^-Xclang$/) {

    # FIXME: Check if we are going off the end.

    ++$i;

    push @CompileOpts, $Arg;

    push @CompileOpts, $ARGV[$i];

    next;

  }

  if (!($Arg =~ /^-/)) {

    push @Files, $Arg;

    next;

  }

}

# Forcedly enable debugging if requested by user.

if ($ForceAnalyzeDebugCode) {

  push @CompileOpts, '-UNDEBUG';

}

# If we are on OSX and have an installation where the

# default SDK is inferred by xcrun use xcrun to infer

# the SDK.

if (not $HasSDK and $UseXCRUN) {

  my $sdk = `/usr/bin/xcrun --show-sdk-path -sdk macosx`;

  chomp $sdk;

  push @CompileOpts, "-isysroot", $sdk;

}

if ($Action eq 'compile' or $Action eq 'link') {

  my @Archs = keys %ArchsSeen;

  # Skip the file if we don't support the architectures specified.

  exit 0 if ($HadArch && scalar(@Archs) == 0);

  foreach my $file (@Files) {

    # Determine the language for the file.

    my $FileLang = $Lang;

    if (!defined($FileLang)) {

      # Infer the language from the extension.

      if ($file =~ /[.]([^.]+)$/) {

        $FileLang = $LangMap{$1};

      }

    }

    # FileLang still not defined?  Skip the file.

    next if (!defined $FileLang);

    # Language not accepted?

    next if (!defined $LangsAccepted{$FileLang});

    my @CmdArgs;

    my @AnalyzeArgs;

    if ($FileLang ne 'unknown') {

      push @CmdArgs, '-x', $FileLang;

    }

    if (defined $ConstraintsModel) {

      push @AnalyzeArgs, "-analyzer-constraints=$ConstraintsModel";

    }

    if (defined $InternalStats) {

      push @AnalyzeArgs, "-analyzer-stats";

    }

    if (defined $Analyses) {

      push @AnalyzeArgs, split '\s+', $Analyses;

    }

    if (defined $Plugins) {

      push @AnalyzeArgs, split '\s+', $Plugins;

    }

    if (defined $OutputFormat) {

      push @AnalyzeArgs, "-analyzer-output=" . $OutputFormat;

      if ($OutputFormat =~ /plist/ || $OutputFormat =~ /sarif/) {

        # Change "Output" to be a file.

        my $Suffix = $OutputFormat =~ /plist/ ? ".plist" : ".sarif";

        my ($h, $f) = tempfile("report-XXXXXX", SUFFIX => $Suffix,

                               DIR => $HtmlDir);

        $ResultFile = $f;

        # If the HtmlDir is not set, we should clean up the plist files.

        if (!defined $HtmlDir || $HtmlDir eq "") {

          $CleanupFile = $f;

        }

      }

    }

    if (defined $ConfigOptions) {

      push @AnalyzeArgs, split '\s+', $ConfigOptions;

    }

    push @CmdArgs, @CompileOpts;

    push @CmdArgs, $file;

    if (scalar @Archs) {

      foreach my $arch (@Archs) {

        my @NewArgs;

        push @NewArgs, '-arch', $arch;

        push @NewArgs, @CmdArgs;

        Analyze($Clang, \@NewArgs, \@AnalyzeArgs, $FileLang, $Output,

                $Verbose, $HtmlDir, $file);

      }

    }

    else {

      Analyze($Clang, \@CmdArgs, \@AnalyzeArgs, $FileLang, $Output,

              $Verbose, $HtmlDir, $file);

    }

  }

}