gdb/nat/windows-nat.h

   1 /* Internal interfaces for the Windows code
   2    Copyright (C) 1995-2020 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef NAT_WINDOWS_NAT_H
  20 #define NAT_WINDOWS_NAT_H
  21
  22 #include <windows.h>
  23
  24 /* Thread information structure used to track extra information about
  25    each thread.  */
  26 struct windows_thread_info
  27 {
  28   windows_thread_info (DWORD tid_, HANDLE h_, CORE_ADDR tlb)
  29     : tid (tid_),
  30       h (h_),
  31       thread_local_base (tlb)
  32   {
  33   }
  34
  35   ~windows_thread_info ()
  36   {
  37     xfree (name);
  38   }
  39
  40   DISABLE_COPY_AND_ASSIGN (windows_thread_info);
  41
  42   /* The Win32 thread identifier.  */
  43   DWORD tid;
  44
  45   /* The handle to the thread.  */
  46   HANDLE h;
  47
  48   /* Thread Information Block address.  */
  49   CORE_ADDR thread_local_base;
  50
  51   /* Non zero if SuspendThread was called on this thread.  */
  52   int suspended = 0;
  53
  54 #ifdef _WIN32_WCE
  55   /* The context as retrieved right after suspending the thread. */
  56   CONTEXT base_context {};
  57 #endif
  58
  59   /* The context of the thread, including any manipulations.  */
  60   union
  61   {
  62     CONTEXT context {};
  63 #ifdef __x86_64__
  64     WOW64_CONTEXT wow64_context;
  65 #endif
  66   };
  67
  68   /* Whether debug registers changed since we last set CONTEXT back to
  69      the thread.  */
  70   int debug_registers_changed = 0;
  71
  72   /* Nonzero if CONTEXT is invalidated and must be re-read from the
  73      inferior thread.  */
  74   int reload_context = 0;
  75
  76   /* The name of the thread, allocated by xmalloc.  */
  77   char *name = nullptr;
  78 };
  79
  80 #endif