[LLVMSymbolize] Move printing the description of a global into a separate function...
[oota-llvm.git] / utils / KillTheDoctor / KillTheDoctor.cpp
index 7a89dd379b70f5cd9c7e42a51845013d9f04ec79..fae3b1a8b9d84bda4a92b6437fd908faea13337f 100644 (file)
 #include "llvm/ADT/Twine.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/Path.h"
 #include "llvm/Support/PrettyStackTrace.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/WindowsError.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/type_traits.h"
-#include "llvm/Support/Signals.h"
-#include "llvm/Support/system_error.h"
 #include <algorithm>
 #include <cerrno>
 #include <cstdlib>
 #include <map>
 #include <string>
+#include <system_error>
+
+// These includes must be last.
 #include <Windows.h>
 #include <WinError.h>
 #include <Dbghelp.h>
 #include <psapi.h>
+
 using namespace llvm;
 
 #undef max
@@ -166,17 +171,19 @@ namespace {
   typedef ScopedHandle<FileHandle>              FileScopedHandle;
 }
 
-static error_code GetFileNameFromHandle(HANDLE FileHandle,
-                                        std::string& Name) {
+static std::error_code windows_error(DWORD E) { return mapWindowsError(E); }
+
+static std::error_code GetFileNameFromHandle(HANDLE FileHandle,
+                                             std::string &Name) {
   char Filename[MAX_PATH+1];
-  bool Sucess = false;
+  bool Success = false;
   Name.clear();
 
   // Get the file size.
   LARGE_INTEGER FileSize;
-  Sucess = ::GetFileSizeEx(FileHandle, &FileSize);
+  Success = ::GetFileSizeEx(FileHandle, &FileSize);
 
-  if (!Sucess)
+  if (!Success)
     return windows_error(::GetLastError());
 
   // Create a file mapping object.
@@ -198,29 +205,16 @@ static error_code GetFileNameFromHandle(HANDLE FileHandle,
   if (!MappedFile)
     return windows_error(::GetLastError());
 
-  Sucess = ::GetMappedFileNameA(::GetCurrentProcess(),
+  Success = ::GetMappedFileNameA(::GetCurrentProcess(),
                                 MappedFile,
                                 Filename,
                                 array_lengthof(Filename) - 1);
 
-  if (!Sucess)
+  if (!Success)
     return windows_error(::GetLastError());
   else {
     Name = Filename;
-    return windows_error::success;
-  }
-}
-
-static std::string QuoteProgramPathIfNeeded(StringRef Command) {
-  if (Command.find_first_of(' ') == StringRef::npos)
-    return Command;
-  else {
-    std::string ret;
-    ret.reserve(Command.size() + 3);
-    ret.push_back('"');
-    ret.append(Command.begin(), Command.end());
-    ret.push_back('"');
-    return ret;
+    return std::error_code();
   }
 }
 
@@ -230,7 +224,8 @@ static std::string QuoteProgramPathIfNeeded(StringRef Command) {
 ///        extension is present, try all extensions in PATHEXT.
 /// @return If ec == errc::success, The absolute path to the program. Otherwise
 ///         the return value is undefined.
-static std::string FindProgram(const std::string &Program, error_code &ec) {
+static std::string FindProgram(const std::string &Program,
+                               std::error_code &ec) {
   char PathName[MAX_PATH + 1];
   typedef SmallVector<StringRef, 12> pathext_t;
   pathext_t pathext;
@@ -255,11 +250,11 @@ static std::string FindProgram(const std::string &Program, error_code &ec) {
       ec = windows_error(::GetLastError());
     else if (length > array_lengthof(PathName)) {
       // This may have been the file, return with error.
-      ec = windows_error::buffer_overflow;
+      ec = windows_error(ERROR_BUFFER_OVERFLOW);
       break;
     } else {
       // We found the path! Return it.
-      ec = windows_error::success;
+      ec = std::error_code();
       break;
     }
   }
@@ -269,39 +264,6 @@ static std::string FindProgram(const std::string &Program, error_code &ec) {
   return PathName;
 }
 
-static error_code EnableDebugPrivileges() {
-  HANDLE TokenHandle;
-  BOOL success = ::OpenProcessToken(::GetCurrentProcess(),
-                                    TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY,
-                                    &TokenHandle);
-  if (!success)
-    return windows_error(::GetLastError());
-
-  TokenScopedHandle Token(TokenHandle);
-  TOKEN_PRIVILEGES  TokenPrivileges;
-  LUID              LocallyUniqueID;
-
-  success = ::LookupPrivilegeValueA(NULL,
-                                    SE_DEBUG_NAME,
-                                    &LocallyUniqueID);
-  if (!success)
-    return windows_error(::GetLastError());
-
-  TokenPrivileges.PrivilegeCount = 1;
-  TokenPrivileges.Privileges[0].Luid = LocallyUniqueID;
-  TokenPrivileges.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
-
-  success = ::AdjustTokenPrivileges(Token,
-                                    FALSE,
-                                    &TokenPrivileges,
-                                    sizeof(TOKEN_PRIVILEGES),
-                                    NULL,
-                                    NULL);
-  // The value of success is basically useless. Either way we are just returning
-  // the value of ::GetLastError().
-  return windows_error(::GetLastError());
-}
-
 static StringRef ExceptionCodeToString(DWORD ExceptionCode) {
   switch(ExceptionCode) {
   case EXCEPTION_ACCESS_VIOLATION: return "EXCEPTION_ACCESS_VIOLATION";
@@ -355,7 +317,7 @@ int main(int argc, char **argv) {
 
   std::string CommandLine(ProgramToRun);
 
-  error_code ec;
+  std::error_code ec;
   ProgramToRun = FindProgram(ProgramToRun, ec);
   if (ec) {
     errs() << ToolName << ": Failed to find program: '" << CommandLine
@@ -399,8 +361,8 @@ int main(int argc, char **argv) {
                                   &StartupInfo,
                                   &ProcessInfo);
   if (!success) {
-    errs() << ToolName << ": Failed to run program: '" << ProgramToRun
-           << "': " << error_code(windows_error(::GetLastError())).message()
+    errs() << ToolName << ": Failed to run program: '" << ProgramToRun << "': "
+           << std::error_code(windows_error(::GetLastError())).message()
            << '\n';
     return -1;
   }
@@ -463,9 +425,10 @@ int main(int argc, char **argv) {
     success = WaitForDebugEvent(&DebugEvent, TimeLeft);
 
     if (!success) {
-      ec = windows_error(::GetLastError());
+      DWORD LastError = ::GetLastError();
+      ec = windows_error(LastError);
 
-      if (ec == errc::timed_out) {
+      if (LastError == ERROR_SEM_TIMEOUT || LastError == WSAETIMEDOUT) {
         errs() << ToolName << ": Process timed out.\n";
         ::TerminateProcess(ProcessInfo.hProcess, -1);
         // Otherwise other stuff starts failing...