Swift: support redirecting .pcm files

Author: jketema

swift/extractor/main.cpp

@@ -53,7 +53,7 @@ static void processFrontendOptions(codeql::SwiftExtractorState& state,
     swift::PrimarySpecificPaths psp{};
     if (std::filesystem::path output = input.getPrimarySpecificPaths().OutputFilename;
         !output.empty()) {
-      if (output.extension() == ".swiftmodule") {
+      if (output.extension() == ".swiftmodule" || output.extension() == ".pcm") {
         psp.OutputFilename = codeql::redirect(output);
       } else {
         psp.OutputFilename = "/dev/null";

swift/extractor/remapping/SwiftFileInterception.cpp

@@ -75,7 +75,7 @@ auto& fileInterceptorInstance() {
 
 bool mayBeRedirected(const char* path, int flags = O_RDONLY) {
   return (!fileInterceptorInstance().expired() && (flags & O_ACCMODE) == O_RDONLY &&
-          endsWith(path, ".swiftmodule"));
+          (endsWith(path, ".swiftmodule") || endsWith(path, ".pcm")));
 }
 
 std::optional<std::string> hashFile(const fs::path& path) {

swift/tools/tracing-config.lua

@@ -53,6 +53,14 @@ function RegisterExtractorPack(id)
         strip_unsupported_arg(args, '-stack-check', 0)
         strip_unsupported_arg(args, '-experimental-skip-non-inlinable-function-bodies-without-types', 0)
         strip_unsupported_clang_arg(args, '-ivfsstatcache', 1)
+        strip_unsupported_clang_arg(args, '-fstack-check', 1)
+        strip_unsupported_clang_arg(args, '-fno-odr-hash-protocols', 1)
+        strip_unsupported_clang_arg(args, '-clang-vendor-feature=+disableNonDependentMemberExprInCurrentInstantiation', 1)
+        strip_unsupported_clang_arg(args, '-clang-vendor-feature=+enableAggressiveVLAFolding', 1)
+        strip_unsupported_clang_arg(args, '-clang-vendor-feature=+revert09abecef7bbf', 1)
+        strip_unsupported_clang_arg(args, '-clang-vendor-feature=+thisNoAlignAttr', 1)
+        strip_unsupported_clang_arg(args, '-clang-vendor-feature=+thisNoNullAttr', 1)
+        strip_unsupported_clang_arg(args, '-clang-vendor-feature=+disableAtImportPrivateFrameworkInImplementationError', 1)
     end
 
     -- xcodebuild does not always specify the -resource-dir in which case the compiler falls back