707 lines
18 KiB
Perl
Executable file
707 lines
18 KiB
Perl
Executable file
#!/usr/bin/env perl
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#
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# The LLVM Compiler Infrastructure
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#
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# This file is distributed under the University of Illinois Open Source
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# License. See LICENSE.TXT for details.
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#
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##===----------------------------------------------------------------------===##
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#
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# A script designed to interpose between the build system and gcc. It invokes
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# both gcc and the static analyzer.
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#
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##===----------------------------------------------------------------------===##
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use strict;
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use warnings;
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use FindBin;
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use Cwd qw/ getcwd abs_path /;
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use File::Temp qw/ tempfile /;
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use File::Path qw / mkpath /;
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use File::Basename;
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use Text::ParseWords;
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##===----------------------------------------------------------------------===##
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# Compiler command setup.
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##===----------------------------------------------------------------------===##
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my $Compiler;
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my $Clang;
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my $DefaultCCompiler;
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my $DefaultCXXCompiler;
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if (`uname -a` =~ m/Darwin/) {
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$DefaultCCompiler = 'clang';
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$DefaultCXXCompiler = 'clang++';
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} else {
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$DefaultCCompiler = 'gcc';
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$DefaultCXXCompiler = 'g++';
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}
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if ($FindBin::Script =~ /c\+\+-analyzer/) {
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$Compiler = $ENV{'CCC_CXX'};
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if (!defined $Compiler) { $Compiler = $DefaultCXXCompiler; }
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$Clang = $ENV{'CLANG_CXX'};
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if (!defined $Clang) { $Clang = 'clang++'; }
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}
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else {
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$Compiler = $ENV{'CCC_CC'};
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if (!defined $Compiler) { $Compiler = $DefaultCCompiler; }
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$Clang = $ENV{'CLANG'};
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if (!defined $Clang) { $Clang = 'clang'; }
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}
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##===----------------------------------------------------------------------===##
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# Cleanup.
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##===----------------------------------------------------------------------===##
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my $ReportFailures = $ENV{'CCC_REPORT_FAILURES'};
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if (!defined $ReportFailures) { $ReportFailures = 1; }
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my $CleanupFile;
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my $ResultFile;
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# Remove any stale files at exit.
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END {
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if (defined $ResultFile && -z $ResultFile) {
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`rm -f $ResultFile`;
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}
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if (defined $CleanupFile) {
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`rm -f $CleanupFile`;
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}
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}
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##----------------------------------------------------------------------------##
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# Process Clang Crashes.
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##----------------------------------------------------------------------------##
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sub GetPPExt {
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my $Lang = shift;
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if ($Lang =~ /objective-c\+\+/) { return ".mii" };
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if ($Lang =~ /objective-c/) { return ".mi"; }
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if ($Lang =~ /c\+\+/) { return ".ii"; }
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return ".i";
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}
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# Set this to 1 if we want to include 'parser rejects' files.
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my $IncludeParserRejects = 0;
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my $ParserRejects = "Parser Rejects";
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my $AttributeIgnored = "Attribute Ignored";
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my $OtherError = "Other Error";
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sub ProcessClangFailure {
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my ($Clang, $Lang, $file, $Args, $HtmlDir, $ErrorType, $ofile) = @_;
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my $Dir = "$HtmlDir/failures";
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mkpath $Dir;
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my $prefix = "clang_crash";
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if ($ErrorType eq $ParserRejects) {
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$prefix = "clang_parser_rejects";
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}
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elsif ($ErrorType eq $AttributeIgnored) {
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$prefix = "clang_attribute_ignored";
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}
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elsif ($ErrorType eq $OtherError) {
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$prefix = "clang_other_error";
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}
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# Generate the preprocessed file with Clang.
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my ($PPH, $PPFile) = tempfile( $prefix . "_XXXXXX",
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SUFFIX => GetPPExt($Lang),
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DIR => $Dir);
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system $Clang, @$Args, "-E", "-o", $PPFile;
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close ($PPH);
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# Create the info file.
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open (OUT, ">", "$PPFile.info.txt") or die "Cannot open $PPFile.info.txt\n";
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print OUT abs_path($file), "\n";
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print OUT "$ErrorType\n";
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print OUT "@$Args\n";
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close OUT;
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`uname -a >> $PPFile.info.txt 2>&1`;
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`$Compiler -v >> $PPFile.info.txt 2>&1`;
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system 'mv',$ofile,"$PPFile.stderr.txt";
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return (basename $PPFile);
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}
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##----------------------------------------------------------------------------##
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# Running the analyzer.
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##----------------------------------------------------------------------------##
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sub GetCCArgs {
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my $mode = shift;
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my $Args = shift;
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pipe (FROM_CHILD, TO_PARENT);
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my $pid = fork();
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if ($pid == 0) {
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close FROM_CHILD;
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open(STDOUT,">&", \*TO_PARENT);
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open(STDERR,">&", \*TO_PARENT);
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exec $Clang, "-###", $mode, @$Args;
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}
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close(TO_PARENT);
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my $line;
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while (<FROM_CHILD>) {
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next if (!/-cc1/);
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$line = $_;
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}
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waitpid($pid,0);
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close(FROM_CHILD);
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die "could not find clang line\n" if (!defined $line);
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# Strip the newline and initial whitspace
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chomp $line;
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$line =~ s/^\s+//;
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my @items = quotewords('\s+', 0, $line);
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my $cmd = shift @items;
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die "cannot find 'clang' in 'clang' command\n" if (!($cmd =~ /clang/));
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return \@items;
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}
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sub Analyze {
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my ($Clang, $OriginalArgs, $AnalyzeArgs, $Lang, $Output, $Verbose, $HtmlDir,
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$file) = @_;
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my @Args = @$OriginalArgs;
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my $Cmd;
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my @CmdArgs;
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my @CmdArgsSansAnalyses;
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if ($Lang =~ /header/) {
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exit 0 if (!defined ($Output));
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$Cmd = 'cp';
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push @CmdArgs, $file;
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# Remove the PCH extension.
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$Output =~ s/[.]gch$//;
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push @CmdArgs, $Output;
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@CmdArgsSansAnalyses = @CmdArgs;
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}
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else {
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$Cmd = $Clang;
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# Create arguments for doing regular parsing.
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my $SyntaxArgs = GetCCArgs("-fsyntax-only", \@Args);
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@CmdArgsSansAnalyses = @$SyntaxArgs;
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# Create arguments for doing static analysis.
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if (defined $ResultFile) {
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push @Args, '-o', $ResultFile;
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}
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elsif (defined $HtmlDir) {
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push @Args, '-o', $HtmlDir;
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}
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if ($Verbose) {
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push @Args, "-Xclang", "-analyzer-display-progress";
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}
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foreach my $arg (@$AnalyzeArgs) {
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push @Args, "-Xclang", $arg;
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}
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# Display Ubiviz graph?
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if (defined $ENV{'CCC_UBI'}) {
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push @Args, "-Xclang", "-analyzer-viz-egraph-ubigraph";
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}
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my $AnalysisArgs = GetCCArgs("--analyze", \@Args);
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@CmdArgs = @$AnalysisArgs;
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}
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my @PrintArgs;
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my $dir;
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if ($Verbose) {
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$dir = getcwd();
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print STDERR "\n[LOCATION]: $dir\n";
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push @PrintArgs,"'$Cmd'";
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foreach my $arg (@CmdArgs) {
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push @PrintArgs,"\'$arg\'";
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}
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}
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if ($Verbose == 1) {
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# We MUST print to stderr. Some clients use the stdout output of
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# gcc for various purposes.
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print STDERR join(' ', @PrintArgs);
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print STDERR "\n";
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}
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elsif ($Verbose == 2) {
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print STDERR "#SHELL (cd '$dir' && @PrintArgs)\n";
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}
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# Capture the STDERR of clang and send it to a temporary file.
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# Capture the STDOUT of clang and reroute it to ccc-analyzer's STDERR.
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# We save the output file in the 'crashes' directory if clang encounters
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# any problems with the file.
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pipe (FROM_CHILD, TO_PARENT);
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my $pid = fork();
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if ($pid == 0) {
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close FROM_CHILD;
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open(STDOUT,">&", \*TO_PARENT);
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open(STDERR,">&", \*TO_PARENT);
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exec $Cmd, @CmdArgs;
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}
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close TO_PARENT;
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my ($ofh, $ofile) = tempfile("clang_output_XXXXXX", DIR => $HtmlDir);
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while (<FROM_CHILD>) {
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print $ofh $_;
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print STDERR $_;
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}
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close $ofh;
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waitpid($pid,0);
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close(FROM_CHILD);
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my $Result = $?;
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# Did the command die because of a signal?
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if ($ReportFailures) {
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if ($Result & 127 and $Cmd eq $Clang and defined $HtmlDir) {
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ProcessClangFailure($Clang, $Lang, $file, \@CmdArgsSansAnalyses,
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$HtmlDir, "Crash", $ofile);
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}
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elsif ($Result) {
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if ($IncludeParserRejects && !($file =~/conftest/)) {
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ProcessClangFailure($Clang, $Lang, $file, \@CmdArgsSansAnalyses,
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$HtmlDir, $ParserRejects, $ofile);
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} else {
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ProcessClangFailure($Clang, $Lang, $file, \@CmdArgsSansAnalyses,
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$HtmlDir, $OtherError, $ofile);
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}
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}
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else {
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# Check if there were any unhandled attributes.
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if (open(CHILD, $ofile)) {
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my %attributes_not_handled;
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# Don't flag warnings about the following attributes that we
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# know are currently not supported by Clang.
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$attributes_not_handled{"cdecl"} = 1;
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my $ppfile;
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while (<CHILD>) {
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next if (! /warning: '([^\']+)' attribute ignored/);
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# Have we already spotted this unhandled attribute?
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next if (defined $attributes_not_handled{$1});
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$attributes_not_handled{$1} = 1;
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# Get the name of the attribute file.
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my $dir = "$HtmlDir/failures";
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my $afile = "$dir/attribute_ignored_$1.txt";
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# Only create another preprocessed file if the attribute file
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# doesn't exist yet.
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next if (-e $afile);
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# Add this file to the list of files that contained this attribute.
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# Generate a preprocessed file if we haven't already.
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if (!(defined $ppfile)) {
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$ppfile = ProcessClangFailure($Clang, $Lang, $file,
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\@CmdArgsSansAnalyses,
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$HtmlDir, $AttributeIgnored, $ofile);
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}
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mkpath $dir;
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open(AFILE, ">$afile");
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print AFILE "$ppfile\n";
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close(AFILE);
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}
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close CHILD;
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}
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}
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}
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unlink($ofile);
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}
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##----------------------------------------------------------------------------##
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# Lookup tables.
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##----------------------------------------------------------------------------##
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my %CompileOptionMap = (
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'-nostdinc' => 0,
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'-include' => 1,
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'-idirafter' => 1,
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'-imacros' => 1,
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'-iprefix' => 1,
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'-iquote' => 1,
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'-isystem' => 1,
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'-iwithprefix' => 1,
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'-iwithprefixbefore' => 1
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);
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my %LinkerOptionMap = (
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'-framework' => 1,
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'-fobjc-link-runtime' => 0
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);
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my %CompilerLinkerOptionMap = (
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'-Wwrite-strings' => 0,
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'-ftrapv-handler' => 1, # specifically call out separated -f flag
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'-mios-simulator-version-min' => 0, # This really has 1 argument, but always has '='
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'-isysroot' => 1,
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'-arch' => 1,
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'-m32' => 0,
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'-m64' => 0,
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'-stdlib' => 0, # This is really a 1 argument, but always has '='
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'-target' => 1,
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'-v' => 0,
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'-mmacosx-version-min' => 0, # This is really a 1 argument, but always has '='
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'-miphoneos-version-min' => 0 # This is really a 1 argument, but always has '='
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);
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my %IgnoredOptionMap = (
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'-MT' => 1, # Ignore these preprocessor options.
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'-MF' => 1,
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'-fsyntax-only' => 0,
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'-save-temps' => 0,
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'-install_name' => 1,
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'-exported_symbols_list' => 1,
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'-current_version' => 1,
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'-compatibility_version' => 1,
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'-init' => 1,
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'-e' => 1,
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'-seg1addr' => 1,
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'-bundle_loader' => 1,
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'-multiply_defined' => 1,
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'-sectorder' => 3,
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'--param' => 1,
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'-u' => 1,
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'--serialize-diagnostics' => 1
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);
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my %LangMap = (
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'c' => 'c',
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'cp' => 'c++',
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'cpp' => 'c++',
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'cxx' => 'c++',
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'txx' => 'c++',
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'cc' => 'c++',
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'C' => 'c++',
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'ii' => 'c++',
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'i' => 'c-cpp-output',
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'm' => 'objective-c',
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'mi' => 'objective-c-cpp-output',
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'mm' => 'objective-c++'
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);
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my %UniqueOptions = (
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'-isysroot' => 0
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);
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##----------------------------------------------------------------------------##
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# Languages accepted.
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##----------------------------------------------------------------------------##
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my %LangsAccepted = (
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"objective-c" => 1,
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"c" => 1,
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"c++" => 1,
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"objective-c++" => 1
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);
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##----------------------------------------------------------------------------##
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# Main Logic.
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##----------------------------------------------------------------------------##
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my $Action = 'link';
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my @CompileOpts;
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my @LinkOpts;
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my @Files;
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my $Lang;
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my $Output;
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my %Uniqued;
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# Forward arguments to gcc.
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my $Status = system($Compiler,@ARGV);
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if (defined $ENV{'CCC_ANALYZER_LOG'}) {
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print STDERR "$Compiler @ARGV\n";
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}
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if ($Status) { exit($Status >> 8); }
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# Get the analysis options.
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my $Analyses = $ENV{'CCC_ANALYZER_ANALYSIS'};
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# Get the plugins to load.
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my $Plugins = $ENV{'CCC_ANALYZER_PLUGINS'};
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# Get the store model.
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my $StoreModel = $ENV{'CCC_ANALYZER_STORE_MODEL'};
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# Get the constraints engine.
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my $ConstraintsModel = $ENV{'CCC_ANALYZER_CONSTRAINTS_MODEL'};
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#Get the internal stats setting.
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my $InternalStats = $ENV{'CCC_ANALYZER_INTERNAL_STATS'};
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# Get the output format.
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my $OutputFormat = $ENV{'CCC_ANALYZER_OUTPUT_FORMAT'};
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if (!defined $OutputFormat) { $OutputFormat = "html"; }
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# Determine the level of verbosity.
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my $Verbose = 0;
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if (defined $ENV{'CCC_ANALYZER_VERBOSE'}) { $Verbose = 1; }
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if (defined $ENV{'CCC_ANALYZER_LOG'}) { $Verbose = 2; }
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# Get the HTML output directory.
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my $HtmlDir = $ENV{'CCC_ANALYZER_HTML'};
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my %DisabledArchs = ('ppc' => 1, 'ppc64' => 1);
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my %ArchsSeen;
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my $HadArch = 0;
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# Process the arguments.
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foreach (my $i = 0; $i < scalar(@ARGV); ++$i) {
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my $Arg = $ARGV[$i];
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my ($ArgKey) = split /=/,$Arg,2;
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# Modes ccc-analyzer supports
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if ($Arg =~ /^-(E|MM?)$/) { $Action = 'preprocess'; }
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elsif ($Arg eq '-c') { $Action = 'compile'; }
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elsif ($Arg =~ /^-print-prog-name/) { exit 0; }
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# Specially handle duplicate cases of -arch
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if ($Arg eq "-arch") {
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my $arch = $ARGV[$i+1];
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# We don't want to process 'ppc' because of Clang's lack of support
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# for Altivec (also some #defines won't likely be defined correctly, etc.)
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if (!(defined $DisabledArchs{$arch})) { $ArchsSeen{$arch} = 1; }
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$HadArch = 1;
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++$i;
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next;
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}
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# Options with possible arguments that should pass through to compiler.
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if (defined $CompileOptionMap{$ArgKey}) {
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my $Cnt = $CompileOptionMap{$ArgKey};
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push @CompileOpts,$Arg;
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while ($Cnt > 0) { ++$i; --$Cnt; push @CompileOpts, $ARGV[$i]; }
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next;
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}
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# Handle the case where there isn't a space after -iquote
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if ($Arg =~ /-iquote.*/) {
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push @CompileOpts,$Arg;
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next;
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}
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# Options with possible arguments that should pass through to linker.
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if (defined $LinkerOptionMap{$ArgKey}) {
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my $Cnt = $LinkerOptionMap{$ArgKey};
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push @LinkOpts,$Arg;
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while ($Cnt > 0) { ++$i; --$Cnt; push @LinkOpts, $ARGV[$i]; }
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next;
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}
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# Options with possible arguments that should pass through to both compiler
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# and the linker.
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if (defined $CompilerLinkerOptionMap{$ArgKey}) {
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my $Cnt = $CompilerLinkerOptionMap{$ArgKey};
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# Check if this is an option that should have a unique value, and if so
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# determine if the value was checked before.
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if ($UniqueOptions{$Arg}) {
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if (defined $Uniqued{$Arg}) {
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$i += $Cnt;
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next;
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}
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$Uniqued{$Arg} = 1;
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}
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push @CompileOpts,$Arg;
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push @LinkOpts,$Arg;
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while ($Cnt > 0) {
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++$i; --$Cnt;
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push @CompileOpts, $ARGV[$i];
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push @LinkOpts, $ARGV[$i];
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}
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next;
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}
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# Ignored options.
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if (defined $IgnoredOptionMap{$ArgKey}) {
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my $Cnt = $IgnoredOptionMap{$ArgKey};
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|
while ($Cnt > 0) {
|
|
++$i; --$Cnt;
|
|
}
|
|
next;
|
|
}
|
|
|
|
# Compile mode flags.
|
|
if ($Arg =~ /^-[D,I,U](.*)$/) {
|
|
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, $Arg;
|
|
next;
|
|
}
|
|
|
|
if (!($Arg =~ /^-/)) {
|
|
push @Files, $Arg;
|
|
next;
|
|
}
|
|
}
|
|
|
|
if ($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 $StoreModel) {
|
|
push @AnalyzeArgs, "-analyzer-store=$StoreModel";
|
|
}
|
|
|
|
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/) {
|
|
# Change "Output" to be a file.
|
|
my ($h, $f) = tempfile("report-XXXXXX", SUFFIX => ".plist",
|
|
DIR => $HtmlDir);
|
|
$ResultFile = $f;
|
|
# If the HtmlDir is not set, we sould clean up the plist files.
|
|
if (!defined $HtmlDir || -z $HtmlDir) {
|
|
$CleanupFile = $f;
|
|
}
|
|
}
|
|
}
|
|
|
|
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, $file);
|
|
}
|
|
}
|
|
}
|
|
|
|
exit($Status >> 8);
|
|
|