1 files changed, 109 insertions, 0 deletions
diff --git a/llvm/lib/DebugInfo/PDB/PDBSymbolCompiland.cpp b/llvm/lib/DebugInfo/PDB/PDBSymbolCompiland.cpp
new file mode 100644
index 0000000000000..9b2883546305b
--- /dev/null
+++ b/llvm/lib/DebugInfo/PDB/PDBSymbolCompiland.cpp
@@ -0,0 +1,109 @@
+//===- PDBSymbolCompiland.cpp - compiland details ---------------*- C++ -*-===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/DebugInfo/PDB/IPDBSession.h"
+#include "llvm/DebugInfo/PDB/IPDBSourceFile.h"
+
+#include "llvm/DebugInfo/PDB/PDBSymbolCompiland.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolCompilandDetails.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolCompilandEnv.h"
+#include "llvm/DebugInfo/PDB/PDBSymDumper.h"
+
+#include "llvm/ADT/StringSwitch.h"
+#include "llvm/Support/Path.h"
+#include <utility>
+
+using namespace llvm;
+using namespace llvm::pdb;
+
+void PDBSymbolCompiland::dump(PDBSymDumper &Dumper) const {
+  Dumper.dump(*this);
+}
+
+std::string PDBSymbolCompiland::getSourceFileName() const {
+  return sys::path::filename(getSourceFileFullPath()).str();
+}
+
+std::string PDBSymbolCompiland::getSourceFileFullPath() const {
+  std::string SourceFileFullPath;
+
+  // RecordedResult could be the basename, relative path or full path of the
+  // source file. Usually it is retrieved and recorded from the command that
+  // compiles this compiland.
+  //
+  //  cmd FileName          -> RecordedResult = .\\FileName
+  //  cmd (Path)\\FileName  -> RecordedResult = (Path)\\FileName
+  //
+  std::string RecordedResult = RawSymbol->getSourceFileName();
+
+  if (RecordedResult.empty()) {
+    if (auto Envs = findAllChildren<PDBSymbolCompilandEnv>()) {
+      std::string EnvWorkingDir, EnvSrc;
+
+      while (auto Env = Envs->getNext()) {
+        std::string Var = Env->getName();
+        if (Var == "cwd") {
+          EnvWorkingDir = Env->getValue();
+          continue;
+        }
+        if (Var == "src") {
+          EnvSrc = Env->getValue();
+          if (sys::path::is_absolute(EnvSrc))
+            return EnvSrc;
+          RecordedResult = EnvSrc;
+          continue;
+        }
+      }
+      if (!EnvWorkingDir.empty() && !EnvSrc.empty()) {
+        auto Len = EnvWorkingDir.length();
+        if (EnvWorkingDir[Len - 1] != '/' && EnvWorkingDir[Len - 1] != '\\') {
+          std::string Path = EnvWorkingDir + "\\" + EnvSrc;
+          std::replace(Path.begin(), Path.end(), '/', '\\');
+          // We will return it as full path if we can't find a better one.
+          if (sys::path::is_absolute(Path))
+            SourceFileFullPath = Path;
+        }
+      }
+    }
+  }
+
+  if (!RecordedResult.empty()) {
+    if (sys::path::is_absolute(RecordedResult))
+      return RecordedResult;
+
+    // This searches name that has same basename as the one in RecordedResult.
+    auto OneSrcFile = Session.findOneSourceFile(
+        this, RecordedResult, PDB_NameSearchFlags::NS_CaseInsensitive);
+    if (OneSrcFile)
+      return OneSrcFile->getFileName();
+  }
+
+  // At this point, we have to walk through all source files of this compiland,
+  // and determine the right source file if any that is used to generate this
+  // compiland based on language indicated in compilanddetails language field.
+  auto Details = findOneChild<PDBSymbolCompilandDetails>();
+  PDB_Lang Lang = Details ? Details->getLanguage() : PDB_Lang::Cpp;
+  auto SrcFiles = Session.getSourceFilesForCompiland(*this);
+  if (SrcFiles) {
+    while (auto File = SrcFiles->getNext()) {
+      std::string FileName = File->getFileName();
+      auto file_extension = sys::path::extension(FileName);
+      if (StringSwitch<bool>(file_extension.lower())
+              .Case(".cpp", Lang == PDB_Lang::Cpp)
+              .Case(".cc", Lang == PDB_Lang::Cpp)
+              .Case(".cxx", Lang == PDB_Lang::Cpp)
+              .Case(".c", Lang == PDB_Lang::C)
+              .Case(".asm", Lang == PDB_Lang::Masm)
+              .Case(".swift", Lang == PDB_Lang::Swift)
+              .Default(false))
+        return File->getFileName();
+    }
+  }
+
+  return SourceFileFullPath;
+}