gdb/gdbserver/win32-low.h

   1 /* Internal interfaces for the Win32 specific target code for gdbserver.
   2    Copyright (C) 2007-2015 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 #include <windows.h>
  20
  21 struct target_desc;
  22
  23 /* The inferior's target description.  This is a global because the
  24    Windows ports support neither bi-arch nor multi-process.  */
  25 extern const struct target_desc *win32_tdesc;
  26
  27 /* Thread information structure used to track extra information about
  28    each thread.  */
  29 typedef struct win32_thread_info
  30 {
  31   /* The Win32 thread identifier.  */
  32   DWORD tid;
  33
  34   /* The handle to the thread.  */
  35   HANDLE h;
  36
  37   /* Thread Information Block address.  */
  38   CORE_ADDR thread_local_base;
  39
  40   /* Non zero if SuspendThread was called on this thread.  */
  41   int suspended;
  42
  43 #ifdef _WIN32_WCE
  44   /* The context as retrieved right after suspending the thread. */
  45   CONTEXT base_context;
  46 #endif
  47
  48   /* The context of the thread, including any manipulations.  */
  49   CONTEXT context;
  50
  51   /* Whether debug registers changed since we last set CONTEXT back to
  52      the thread.  */
  53   int debug_registers_changed;
  54 } win32_thread_info;
  55
  56 struct win32_target_ops
  57 {
  58   /* Architecture-specific setup.  */
  59   void (*arch_setup) (void);
  60
  61   /* The number of target registers.  */
  62   int num_regs;
  63
  64   /* Perform initializations on startup.  */
  65   void (*initial_stuff) (void);
  66
  67   /* Fetch the context from the inferior.  */
  68   void (*get_thread_context) (win32_thread_info *th);
  69
  70   /* Called just before resuming the thread.  */
  71   void (*prepare_to_resume) (win32_thread_info *th);
  72
  73   /* Called when a thread was added.  */
  74   void (*thread_added) (win32_thread_info *th);
  75
  76   /* Fetch register from gdbserver regcache data.  */
  77   void (*fetch_inferior_register) (struct regcache *regcache,
  78                                    win32_thread_info *th, int r);
  79
  80   /* Store a new register value into the thread context of TH.  */
  81   void (*store_inferior_register) (struct regcache *regcache,
  82                                    win32_thread_info *th, int r);
  83
  84   void (*single_step) (win32_thread_info *th);
  85
  86   const unsigned char *breakpoint;
  87   int breakpoint_len;
  88
  89   /* Breakpoint/Watchpoint related functions.  See target.h for comments.  */
  90   int (*supports_z_point_type) (char z_type);
  91   int (*insert_point) (enum raw_bkpt_type type, CORE_ADDR addr,
  92                        int size, struct raw_breakpoint *bp);
  93   int (*remove_point) (enum raw_bkpt_type type, CORE_ADDR addr,
  94                        int size, struct raw_breakpoint *bp);
  95   int (*stopped_by_watchpoint) (void);
  96   CORE_ADDR (*stopped_data_address) (void);
  97 };
  98
  99 extern struct win32_target_ops the_low_target;
 100
 101 /* Retrieve the context for this thread, if not already retrieved.  */
 102 extern void win32_require_context (win32_thread_info *th);
 103
 104 /* Map the Windows error number in ERROR to a locale-dependent error
 105    message string and return a pointer to it.  Typically, the values
 106    for ERROR come from GetLastError.
 107
 108    The string pointed to shall not be modified by the application,
 109    but may be overwritten by a subsequent call to strwinerror
 110
 111    The strwinerror function does not change the current setting
 112    of GetLastError.  */
 113 extern char * strwinerror (DWORD error);
 114
 115 /* in wincecompat.c */
 116
 117 extern void to_back_slashes (char *);