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[clang][scan-build] Treat --use-cc and --use-c++ as shell commands (#131932)

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So that things like --use-cc="ccache gcc" work.

Fixes #26594.

Also use the slightly simpler shellwords instead of quotewords.
This commit is contained in:
Florian Ragwitz 2025-03-24 03:09:03 -07:00 committed by GitHub
parent 27d9a3a39e
commit cc5f8293b3
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1 changed files with 34 additions and 56 deletions
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90
clang/tools/scan-build/libexec/ccc-analyzer
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@ -51,63 +51,40 @@ sub silent_system {
# 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/$file") {
return 1;
}
}
return 0;
}
{
my ($DefaultCCompiler, $DefaultCXXCompiler);
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;
my $os = `uname -s`;
if ($os =~ m/Darwin/) {
$DefaultCCompiler = 'clang';
$DefaultCXXCompiler = 'clang++';
} elsif ($os =~ m/(FreeBSD|OpenBSD)/) {
$DefaultCCompiler = 'cc';
$DefaultCXXCompiler = 'c++';
} else {
$DefaultCCompiler = 'gcc';
$DefaultCXXCompiler = 'g++';
}
sub DetermineCompiler {
my ($is_cxx) = @_;
my $default = $is_cxx ? $DefaultCXXCompiler : $DefaultCCompiler;
my $opt = $ENV{$is_cxx ? 'CCC_CXX' : 'CCC_CC'};
return defined $opt ? shellwords($opt) : $default;
}
} 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'; }
$IsCXX = 0
sub DetermineClang {
my ($is_cxx) = @_;
my $default = $is_cxx ? 'clang++' : 'clang';
my $opt = $ENV{$is_cxx ? 'CLANG_CXX' : 'CLANG'};
return defined $opt ? $opt : $default;
}
$AnalyzerTarget = $ENV{'CLANG_ANALYZER_TARGET'};
my $IsCXX = $FindBin::Script =~ /c\+\+-analyzer/;
my ($Compiler, @CompilerArgs) = DetermineCompiler($IsCXX);
my $Clang = DetermineClang($IsCXX);
my $AnalyzerTarget = $ENV{'CLANG_ANALYZER_TARGET'};
##===----------------------------------------------------------------------===##
# Cleanup.
@ -199,7 +176,7 @@ sub GetCCArgs {
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, $line);
my @items = shellwords($line);
my $cmd = shift @items;
die "cannot find 'clang' in 'clang' command\n" if (!($cmd =~ /clang/ || basename($cmd) =~ /llvm/));
# If this is the llvm-driver the internal command will look like "llvm clang ...".
@ -462,9 +439,9 @@ my $Output;
my %Uniqued;
# Forward arguments to gcc.
my $Status = system($Compiler,@ARGV);
my $Status = system($Compiler,@CompilerArgs,@ARGV);
if (defined $ENV{'CCC_ANALYZER_LOG'}) {
print STDERR "$Compiler @ARGV\n";
print STDERR "$Compiler @CompilerArgs @ARGV\n";
}
if ($Status) { exit($Status >> 8); }
@ -698,8 +675,9 @@ if ($ForceAnalyzeDebugCode) {
# 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) {
# the SDK. Older versions of OSX do not have xcrun to
# query the SDK location.
if (not $HasSDK and -x '/usr/bin/xcrun') {
my $sdk = `/usr/bin/xcrun --show-sdk-path -sdk macosx`;
chomp $sdk;
push @CompileOpts, "-isysroot", $sdk;