blob: 1659c53a5ad04be73f56c40502964549c2e24eaa [file] [log] [blame]
#!/usr/bin/env perl
#
# The LLVM Compiler Infrastructure
#
# This file is distributed under the University of Illinois Open Source
# License. See LICENSE.TXT for details.
#
##===----------------------------------------------------------------------===##
#
# A script designed to interpose between the build system and gcc. It invokes
# both gcc and the static analyzer.
#
##===----------------------------------------------------------------------===##
use strict;
use warnings;
use Cwd;
##----------------------------------------------------------------------------##
# Running the analyzer.
##----------------------------------------------------------------------------##
sub Analyze {
my ($Clang, $Args, $Lang, $Output, $Verbose, $HtmlDir, $file, $Analyses) = @_;
# Skip anything related to C++.
return if ($Lang =~ /c[+][+]/);
my $RunAnalyzer = 0;
my $Cmd;
my @CmdArgs;
if ($Lang =~ /header/) {
exit 0 if (!defined ($Output));
$Cmd = 'cp';
push @CmdArgs,$file;
# Remove the PCH extension.
$Output =~ s/[.]gch$//;
push @CmdArgs,$Output;
}
else {
$Cmd = $Clang;
push @CmdArgs,(split /\s/,$Analyses);
push @CmdArgs,'-DIBOutlet=__attribute__((iboutlet))';
push @CmdArgs,@$Args;
$RunAnalyzer = 1;
}
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 '$dir' && @PrintArgs)\n";
}
if ($RunAnalyzer and defined($HtmlDir)) {
push @CmdArgs,'-o';
push @CmdArgs,$HtmlDir;
}
system $Cmd,@CmdArgs;
}
##----------------------------------------------------------------------------##
# Lookup tables.
##----------------------------------------------------------------------------##
my %CompileOptionMap = (
'-nostdinc' => 0,
'-fobjc-gc-only' => 0,
'-fobjc-gc' => 0,
'-include' => 1,
'-idirafter' => 1,
'-iprefix' => 1,
'-iquote' => 1,
'-isystem' => 1,
'-iwithprefix' => 1,
'-iwithprefixbefore' => 1
);
my %LinkerOptionMap = (
'-framework' => 1
);
my %CompilerLinkerOptionMap = (
'-isysroot' => 1,
'-arch' => 1,
'-v' => 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
);
my %LangMap = (
'c' => 'c',
'cpp' => 'c++',
'cc' => 'c++',
'i' => 'c-cpp-output',
'm' => 'objective-c',
'mi' => 'objective-c-cpp-output'
);
##----------------------------------------------------------------------------##
# Main Logic.
##----------------------------------------------------------------------------##
my $Action = 'link';
my @CompileOpts;
my @LinkOpts;
my @Files;
my $Lang;
my $Output;
# Forward arguments to gcc.
my $Status = system("gcc",@ARGV);
if ($Status) { exit($Status); }
# Get the analysis options.
my $Analyses = $ENV{'CCC_ANALYZER_ANALYSIS'};
if (!defined($Analyses)) { $Analyses = '-checker-cfref'; }
# Determine the level of verbosity.
my $Verbose = 0;
if (defined $ENV{CCC_ANALYZER_VERBOSE}) { $Verbose = 1; }
if (defined $ENV{CCC_ANALYZER_LOG}) { $Verbose = 2; }
# Determine what clang executable to use.
my $Clang = $ENV{'CLANG'};
if (!defined $Clang) { $Clang = 'clang'; }
# Get the HTML output directory.
my $HtmlDir = $ENV{'CCC_ANALYZER_HTML'};
# Process the arguments.
foreach (my $i = 0; $i < scalar(@ARGV); ++$i) {
my $Arg = $ARGV[$i];
# Modes ccc-analyzer supports
if ($Arg eq '-E') { $Action = 'preprocess'; }
elsif ($Arg eq '-c') { $Action = 'compile'; }
elsif ($Arg =~ /^-print-prog-name/) { exit 0; }
# Options with possible arguments that should pass through to compiler.
if (defined $CompileOptionMap{$Arg}) {
my $Cnt = $CompileOptionMap{$Arg};
push @CompileOpts,$Arg;
while ($Cnt > 0) { ++$i; --$Cnt; push @CompileOpts, $ARGV[$i]; }
next;
}
# Options with possible arguments that should pass through to linker.
if (defined $LinkerOptionMap{$Arg}) {
my $Cnt = $LinkerOptionMap{$Arg};
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 $CompilerLinkerOptionMap{$Arg}) {
my $Cnt = $CompilerLinkerOptionMap{$Arg};
push @CompileOpts,$Arg;
push @LinkOpts,$Arg;
while ($Cnt > 0) {
++$i; --$Cnt;
push @CompileOpts, $ARGV[$i];
push @LinkOpts, $ARGV[$i];
}
next;
}
# Ignored options.
if (defined $IgnoredOptionMap{$Arg}) {
my $Cnt = $IgnoredOptionMap{$Arg};
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,$Tmp;
next;
}
# Language.
if ($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; }
next;
}
if ($Arg =~ /^-std=/) {
push @CompileOpts,$Arg;
next;
}
# if ($Arg =~ /^-f/) {
# # FIXME: Not sure if the remaining -fxxxx options have no arguments.
# push @CompileOpts,$Arg;
# push @LinkOpts,$Arg; # FIXME: Not sure if these are link opts.
# }
# Get the compiler/link mode.
if ($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 (!($Arg =~ /^-/)) {
push @Files,$Arg; next;
}
}
if ($Action eq 'compile' or $Action eq 'link') {
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};
}
}
next if (!defined $FileLang);
my @AnalyzeArgs;
if ($FileLang ne 'unknown') {
push @AnalyzeArgs,'-x';
push @AnalyzeArgs,$FileLang;
}
push @AnalyzeArgs,@CompileOpts;
push @AnalyzeArgs,$file;
Analyze($Clang, \@AnalyzeArgs, $FileLang, $Output,
$Verbose, $HtmlDir, $file, $Analyses);
}
}