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src/subversion/subversion/libsvn_subr/win32_crashrpt.c  view on Meta::CPAN

  else
    {
      ctx = *context;
    }

  if (context == NULL)
    return;

  /* Write the stack trace */
  ZeroMemory(&stack_frame, sizeof(STACKFRAME64));
  stack_frame.AddrPC.Mode = AddrModeFlat;
  stack_frame.AddrStack.Mode   = AddrModeFlat;
  stack_frame.AddrFrame.Mode   = AddrModeFlat;

#if defined(_M_IX86)
  machine = IMAGE_FILE_MACHINE_I386;
  stack_frame.AddrPC.Offset    = context->Eip;
  stack_frame.AddrStack.Offset = context->Esp;
  stack_frame.AddrFrame.Offset = context->Ebp;
#elif defined(_M_X64)
  machine = IMAGE_FILE_MACHINE_AMD64;
  stack_frame.AddrPC.Offset     = context->Rip;
  stack_frame.AddrStack.Offset  = context->Rsp;
  stack_frame.AddrFrame.Offset  = context->Rbp;
#elif defined(_M_IA64)
  machine = IMAGE_FILE_MACHINE_IA64;
  stack_frame.AddrPC.Offset     = context->StIIP;
  stack_frame.AddrStack.Offset  = context->SP;
  stack_frame.AddrBStore.Mode   = AddrModeFlat;
  stack_frame.AddrBStore.Offset = context->RsBSP;
#else
#error Unknown processortype, please disable SVN_USE_WIN32_CRASHHANDLER
#endif

  while (1)
    {
      if (! StackWalk64_(machine, proc, GetCurrentThread(),
                         &stack_frame, &ctx, NULL,
                         SymFunctionTableAccess64_, SymGetModuleBase64_, NULL))
        {
          break;
        }

      if (i >= skip)
        {
          /* Try to include symbolic information.
             Also check that the address is not zero. Sometimes StackWalk
             returns TRUE with a frame of zero. */
          if (stack_frame.AddrPC.Offset != 0)
            {
              write_function_detail(stack_frame, i, log_file);
            }
        }
      i++;
    }
#else
#error Unknown processortype, please disable SVN_USE_WIN32_CRASHHANDLER
#endif
}

/* Check if a debugger is attached to this process */
static BOOL
is_debugger_present()
{
  HANDLE kernel32_dll = LoadLibrary("kernel32.dll");
  BOOL result;

  ISDEBUGGERPRESENT IsDebuggerPresent_ =
          (ISDEBUGGERPRESENT)GetProcAddress(kernel32_dll, "IsDebuggerPresent");

  if (IsDebuggerPresent_ && IsDebuggerPresent_())
    result = TRUE;
  else
    result = FALSE;

  FreeLibrary(kernel32_dll);

  return result;
}

/* Load the dbghelp.dll file, try to find a version that matches our
   requirements. */
static BOOL
load_dbghelp_dll()
{
  dbghelp_dll = LoadLibrary(DBGHELP_DLL);
  if (dbghelp_dll != INVALID_HANDLE_VALUE)
    {
      DWORD opts;

      /* load the functions */
      MiniDumpWriteDump_ =
           (MINIDUMPWRITEDUMP)GetProcAddress(dbghelp_dll, "MiniDumpWriteDump");
      SymInitialize_ =
           (SYMINITIALIZE)GetProcAddress(dbghelp_dll, "SymInitialize");
      SymSetOptions_ =
           (SYMSETOPTIONS)GetProcAddress(dbghelp_dll, "SymSetOptions");
      SymGetOptions_ =
           (SYMGETOPTIONS)GetProcAddress(dbghelp_dll, "SymGetOptions");
      SymCleanup_ =
           (SYMCLEANUP)GetProcAddress(dbghelp_dll, "SymCleanup");
      SymGetTypeInfo_ =
           (SYMGETTYPEINFO)GetProcAddress(dbghelp_dll, "SymGetTypeInfo");
      SymGetLineFromAddr64_ =
           (SYMGETLINEFROMADDR64)GetProcAddress(dbghelp_dll,
                                              "SymGetLineFromAddr64");
      SymEnumSymbols_ =
           (SYMENUMSYMBOLS)GetProcAddress(dbghelp_dll, "SymEnumSymbols");
      SymSetContext_ =
           (SYMSETCONTEXT)GetProcAddress(dbghelp_dll, "SymSetContext");
      SymFromAddr_ = (SYMFROMADDR)GetProcAddress(dbghelp_dll, "SymFromAddr");
      StackWalk64_ = (STACKWALK64)GetProcAddress(dbghelp_dll, "StackWalk64");
      SymFunctionTableAccess64_ =
           (SYMFUNCTIONTABLEACCESS64)GetProcAddress(dbghelp_dll,
                                                  "SymFunctionTableAccess64");
      SymGetModuleBase64_ =
           (SYMGETMODULEBASE64)GetProcAddress(dbghelp_dll, "SymGetModuleBase64");

      if (! (MiniDumpWriteDump_ &&
             SymInitialize_ && SymSetOptions_  && SymGetOptions_ &&
             SymCleanup_    && SymGetTypeInfo_ && SymGetLineFromAddr64_ &&