[deliverable/binutils-gdb.git] / gdb / gdbserver / win32-i386-low.c

/* Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#include "server.h"
#include "win32-low.h"
#include "i386-low.h"

#ifndef CONTEXT_EXTENDED_REGISTERS
#define CONTEXT_EXTENDED_REGISTERS 0
#endif

#define FCS_REGNUM 27
#define FOP_REGNUM 31

#define FLAG_TRACE_BIT 0x100

#ifdef __x86_64__
/* Defined in auto-generated file reg-amd64.c.  */
void init_registers_amd64 (void);
#else
/* Defined in auto-generated file reg-i386.c.  */
void init_registers_i386 (void);
#endif

static struct i386_debug_reg_state debug_reg_state;

static int debug_registers_changed = 0;
static int debug_registers_used = 0;

/* Update the inferior's debug register REGNUM from STATE.  */

void
i386_dr_low_set_addr (const struct i386_debug_reg_state *state, int regnum)
{
  if (! (regnum >= 0 && regnum <= DR_LASTADDR - DR_FIRSTADDR))
    fatal ("Invalid debug register %d", regnum);

  /* debug_reg_state.dr_mirror is already set.
     Just notify i386_set_thread_context, i386_thread_added
     that the registers need to be updated.  */
  debug_registers_changed = 1;
  debug_registers_used = 1;
}

/* Update the inferior's DR7 debug control register from STATE.  */

void
i386_dr_low_set_control (const struct i386_debug_reg_state *state)
{
  /* debug_reg_state.dr_control_mirror is already set.
     Just notify i386_set_thread_context, i386_thread_added
     that the registers need to be updated.  */
  debug_registers_changed = 1;
  debug_registers_used = 1;
}

/* Get the value of the DR6 debug status register from the inferior
   and record it in STATE.  */

void
i386_dr_low_get_status (struct i386_debug_reg_state *state)
{
  /* We don't need to do anything here, the last call to thread_rec for
     current_event.dwThreadId id has already set it.  */
}

/* Watchpoint support.  */

static int
i386_insert_point (char type, CORE_ADDR addr, int len)
{
  switch (type)
    {
    case '2':
    case '3':
    case '4':
      return i386_low_insert_watchpoint (&debug_reg_state,
					 type, addr, len);
    default:
      /* Unsupported.  */
      return 1;
    }
}

static int
i386_remove_point (char type, CORE_ADDR addr, int len)
{
  switch (type)
    {
    case '2':
    case '3':
    case '4':
      return i386_low_remove_watchpoint (&debug_reg_state,
					 type, addr, len);
    default:
      /* Unsupported.  */
      return 1;
    }
}

static int
i386_stopped_by_watchpoint (void)
{
  return i386_low_stopped_by_watchpoint (&debug_reg_state);
}

static CORE_ADDR
i386_stopped_data_address (void)
{
  CORE_ADDR addr;
  if (i386_low_stopped_data_address (&debug_reg_state, &addr))
    return addr;
  return 0;
}

static void
i386_initial_stuff (void)
{
  i386_low_init_dregs (&debug_reg_state);
  debug_registers_changed = 0;
  debug_registers_used = 0;
}

static void
i386_get_thread_context (win32_thread_info *th, DEBUG_EVENT* current_event)
{
  /* Requesting the CONTEXT_EXTENDED_REGISTERS register set fails if
     the system doesn't support extended registers.  */
  static DWORD extended_registers = CONTEXT_EXTENDED_REGISTERS;

 again:
  th->context.ContextFlags = (CONTEXT_FULL
			      | CONTEXT_FLOATING_POINT
			      | CONTEXT_DEBUG_REGISTERS
			      | extended_registers);

  if (!GetThreadContext (th->h, &th->context))
    {
      DWORD e = GetLastError ();

      if (extended_registers && e == ERROR_INVALID_PARAMETER)
	{
	  extended_registers = 0;
	  goto again;
	}

      error ("GetThreadContext failure %ld\n", (long) e);
    }

  debug_registers_changed = 0;

  if (th->tid == current_event->dwThreadId)
    {
      /* Copy dr values from the current thread.  */
      struct i386_debug_reg_state *dr = &debug_reg_state;
      dr->dr_mirror[0] = th->context.Dr0;
      dr->dr_mirror[1] = th->context.Dr1;
      dr->dr_mirror[2] = th->context.Dr2;
      dr->dr_mirror[3] = th->context.Dr3;
      dr->dr_status_mirror = th->context.Dr6;
      dr->dr_control_mirror = th->context.Dr7;
    }
}

static void
i386_set_thread_context (win32_thread_info *th, DEBUG_EVENT* current_event)
{
  if (debug_registers_changed)
    {
      struct i386_debug_reg_state *dr = &debug_reg_state;
      th->context.Dr0 = dr->dr_mirror[0];
      th->context.Dr1 = dr->dr_mirror[1];
      th->context.Dr2 = dr->dr_mirror[2];
      th->context.Dr3 = dr->dr_mirror[3];
      /* th->context.Dr6 = dr->dr_status_mirror;
	 FIXME: should we set dr6 also ?? */
      th->context.Dr7 = dr->dr_control_mirror;
    }

  SetThreadContext (th->h, &th->context);
}

static void
i386_thread_added (win32_thread_info *th)
{
  /* Set the debug registers for the new thread if they are used.  */
  if (debug_registers_used)
    {
      struct i386_debug_reg_state *dr = &debug_reg_state;
      th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS;
      GetThreadContext (th->h, &th->context);

      th->context.Dr0 = dr->dr_mirror[0];
      th->context.Dr1 = dr->dr_mirror[1];
      th->context.Dr2 = dr->dr_mirror[2];
      th->context.Dr3 = dr->dr_mirror[3];
      /* th->context.Dr6 = dr->dr_status_mirror;
	 FIXME: should we set dr6 also ?? */
      th->context.Dr7 = dr->dr_control_mirror;

      SetThreadContext (th->h, &th->context);
      th->context.ContextFlags = 0;
    }
}

static void
i386_single_step (win32_thread_info *th)
{
  th->context.EFlags |= FLAG_TRACE_BIT;
}

#ifndef __x86_64__

/* An array of offset mappings into a Win32 Context structure.
   This is a one-to-one mapping which is indexed by gdb's register
   numbers.  It retrieves an offset into the context structure where
   the 4 byte register is located.
   An offset value of -1 indicates that Win32 does not provide this
   register in it's CONTEXT structure.  In this case regptr will return
   a pointer into a dummy register.  */
#define context_offset(x) ((int)&(((CONTEXT *)NULL)->x))
static const int mappings[] = {
  context_offset (Eax),
  context_offset (Ecx),
  context_offset (Edx),
  context_offset (Ebx),
  context_offset (Esp),
  context_offset (Ebp),
  context_offset (Esi),
  context_offset (Edi),
  context_offset (Eip),
  context_offset (EFlags),
  context_offset (SegCs),
  context_offset (SegSs),
  context_offset (SegDs),
  context_offset (SegEs),
  context_offset (SegFs),
  context_offset (SegGs),
  context_offset (FloatSave.RegisterArea[0 * 10]),
  context_offset (FloatSave.RegisterArea[1 * 10]),
  context_offset (FloatSave.RegisterArea[2 * 10]),
  context_offset (FloatSave.RegisterArea[3 * 10]),
  context_offset (FloatSave.RegisterArea[4 * 10]),
  context_offset (FloatSave.RegisterArea[5 * 10]),
  context_offset (FloatSave.RegisterArea[6 * 10]),
  context_offset (FloatSave.RegisterArea[7 * 10]),
  context_offset (FloatSave.ControlWord),
  context_offset (FloatSave.StatusWord),
  context_offset (FloatSave.TagWord),
  context_offset (FloatSave.ErrorSelector),
  context_offset (FloatSave.ErrorOffset),
  context_offset (FloatSave.DataSelector),
  context_offset (FloatSave.DataOffset),
  context_offset (FloatSave.ErrorSelector),
  /* XMM0-7 */
  context_offset (ExtendedRegisters[10 * 16]),
  context_offset (ExtendedRegisters[11 * 16]),
  context_offset (ExtendedRegisters[12 * 16]),
  context_offset (ExtendedRegisters[13 * 16]),
  context_offset (ExtendedRegisters[14 * 16]),
  context_offset (ExtendedRegisters[15 * 16]),
  context_offset (ExtendedRegisters[16 * 16]),
  context_offset (ExtendedRegisters[17 * 16]),
  /* MXCSR */
  context_offset (ExtendedRegisters[24])
};
#undef context_offset

#else /* __x86_64__ */

#define context_offset(x) (offsetof (CONTEXT, x))
static const int mappings[] =
{
  context_offset (Rax),
  context_offset (Rbx),
  context_offset (Rcx),
  context_offset (Rdx),
  context_offset (Rsi),
  context_offset (Rdi),
  context_offset (Rbp),
  context_offset (Rsp),
  context_offset (R8),
  context_offset (R9),
  context_offset (R10),
  context_offset (R11),
  context_offset (R12),
  context_offset (R13),
  context_offset (R14),
  context_offset (R15),
  context_offset (Rip),
  context_offset (EFlags),
  context_offset (SegCs),
  context_offset (SegSs),
  context_offset (SegDs),
  context_offset (SegEs),
  context_offset (SegFs),
  context_offset (SegGs),
  context_offset (FloatSave.FloatRegisters[0]),
  context_offset (FloatSave.FloatRegisters[1]),
  context_offset (FloatSave.FloatRegisters[2]),
  context_offset (FloatSave.FloatRegisters[3]),
  context_offset (FloatSave.FloatRegisters[4]),
  context_offset (FloatSave.FloatRegisters[5]),
  context_offset (FloatSave.FloatRegisters[6]),
  context_offset (FloatSave.FloatRegisters[7]),
  context_offset (FloatSave.ControlWord),
  context_offset (FloatSave.StatusWord),
  context_offset (FloatSave.TagWord),
  context_offset (FloatSave.ErrorSelector),
  context_offset (FloatSave.ErrorOffset),
  context_offset (FloatSave.DataSelector),
  context_offset (FloatSave.DataOffset),
  context_offset (FloatSave.ErrorSelector)
  /* XMM0-7 */ ,
  context_offset (Xmm0),
  context_offset (Xmm1),
  context_offset (Xmm2),
  context_offset (Xmm3),
  context_offset (Xmm4),
  context_offset (Xmm5),
  context_offset (Xmm6),
  context_offset (Xmm7),
  context_offset (Xmm8),
  context_offset (Xmm9),
  context_offset (Xmm10),
  context_offset (Xmm11),
  context_offset (Xmm12),
  context_offset (Xmm13),
  context_offset (Xmm14),
  context_offset (Xmm15),
  /* MXCSR */
  context_offset (FloatSave.MxCsr)
};
#undef context_offset

#endif /* __x86_64__ */

/* Fetch register from gdbserver regcache data.  */
static void
i386_fetch_inferior_register (struct regcache *regcache,
			      win32_thread_info *th, int r)
{
  char *context_offset = (char *) &th->context + mappings[r];

  long l;
  if (r == FCS_REGNUM)
    {
      l = *((long *) context_offset) & 0xffff;
      supply_register (regcache, r, (char *) &l);
    }
  else if (r == FOP_REGNUM)
    {
      l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1);
      supply_register (regcache, r, (char *) &l);
    }
  else
    supply_register (regcache, r, context_offset);
}

/* Store a new register value into the thread context of TH.  */
static void
i386_store_inferior_register (struct regcache *regcache,
			      win32_thread_info *th, int r)
{
  char *context_offset = (char *) &th->context + mappings[r];
  collect_register (regcache, r, context_offset);
}

static const unsigned char i386_win32_breakpoint = 0xcc;
#define i386_win32_breakpoint_len 1

static void
init_windows_x86 (void)
{
#ifdef __x86_64__
  init_registers_amd64 ();
#else
  init_registers_i386 ();
#endif
}

struct win32_target_ops the_low_target = {
  init_windows_x86,
  sizeof (mappings) / sizeof (mappings[0]),
  i386_initial_stuff,
  i386_get_thread_context,
  i386_set_thread_context,
  i386_thread_added,
  i386_fetch_inferior_register,
  i386_store_inferior_register,
  i386_single_step,
  &i386_win32_breakpoint,
  i386_win32_breakpoint_len,
  i386_insert_point,
  i386_remove_point,
  i386_stopped_by_watchpoint,
  i386_stopped_data_address
};
Commit	Line	Data
4c38e0a4	1	/* Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
68070c10 PA	2
	3	This file is part of GDB.
	4
	5	This program is free software; you can redistribute it and/or modify
	6	it under the terms of the GNU General Public License as published by
a9762ec7	7	the Free Software Foundation; either version 3 of the License, or
68070c10 PA	8	(at your option) any later version.
	9
	10	This program is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	GNU General Public License for more details.
	14
	15	You should have received a copy of the GNU General Public License
a9762ec7	16	along with this program. If not, see <http://www.gnu.org/licenses/>. */
68070c10 PA	17
	18	#include "server.h"
	19	#include "win32-low.h"
aa5ca48f	20	#include "i386-low.h"
68070c10	21
54709339 PM	22	#ifndef CONTEXT_EXTENDED_REGISTERS
	23	#define CONTEXT_EXTENDED_REGISTERS 0
	24	#endif
	25
68070c10 PA	26	#define FCS_REGNUM 27
	27	#define FOP_REGNUM 31
	28
	29	#define FLAG_TRACE_BIT 0x100
	30
1c07cc19 PM	31	#ifdef __x86_64__
1c07cc19 PM	32	/* Defined in auto-generated file reg-amd64.c. */
54709339 PM	33	void init_registers_amd64 (void);
54709339 PM	34	#else
d05b4ac3 UW	35	/* Defined in auto-generated file reg-i386.c. */
d05b4ac3 UW	36	void init_registers_i386 (void);
54709339	37	#endif
d05b4ac3	38
aa5ca48f	39	static struct i386_debug_reg_state debug_reg_state;
68070c10	40
34b34921 PA	41	static int debug_registers_changed = 0;
	42	static int debug_registers_used = 0;
	43
aa5ca48f DE	44	/* Update the inferior's debug register REGNUM from STATE. */
	45
	46	void
	47	i386_dr_low_set_addr (const struct i386_debug_reg_state *state, int regnum)
	48	{
	49	if (! (regnum >= 0 && regnum <= DR_LASTADDR - DR_FIRSTADDR))
	50	fatal ("Invalid debug register %d", regnum);
	51
	52	/* debug_reg_state.dr_mirror is already set.
	53	Just notify i386_set_thread_context, i386_thread_added
	54	that the registers need to be updated. */
	55	debug_registers_changed = 1;
	56	debug_registers_used = 1;
	57	}
	58
	59	/* Update the inferior's DR7 debug control register from STATE. */
	60
	61	void
	62	i386_dr_low_set_control (const struct i386_debug_reg_state *state)
	63	{
	64	/* debug_reg_state.dr_control_mirror is already set.
	65	Just notify i386_set_thread_context, i386_thread_added
	66	that the registers need to be updated. */
	67	debug_registers_changed = 1;
	68	debug_registers_used = 1;
	69	}
	70
	71	/* Get the value of the DR6 debug status register from the inferior
	72	and record it in STATE. */
	73
	74	void
	75	i386_dr_low_get_status (struct i386_debug_reg_state *state)
	76	{
	77	/* We don't need to do anything here, the last call to thread_rec for
	78	current_event.dwThreadId id has already set it. */
	79	}
	80
	81	/* Watchpoint support. */
	82
	83	static int
	84	i386_insert_point (char type, CORE_ADDR addr, int len)
	85	{
	86	switch (type)
	87	{
	88	case '2':
	89	case '3':
	90	case '4':
	91	return i386_low_insert_watchpoint (&debug_reg_state,
	92	type, addr, len);
	93	default:
	94	/* Unsupported. */
	95	return 1;
	96	}
	97	}
	98
	99	static int
	100	i386_remove_point (char type, CORE_ADDR addr, int len)
	101	{
	102	switch (type)
	103	{
	104	case '2':
	105	case '3':
	106	case '4':
	107	return i386_low_remove_watchpoint (&debug_reg_state,
108	type, addr, len);
109	default:
110	/* Unsupported. */
111	return 1;
112	}
113	}
114
115	static int
116	i386_stopped_by_watchpoint (void)
117	{
118	return i386_low_stopped_by_watchpoint (&debug_reg_state);
119	}
120
121	static CORE_ADDR
122	i386_stopped_data_address (void)
123	{
124	CORE_ADDR addr;
125	if (i386_low_stopped_data_address (&debug_reg_state, &addr))
126	return addr;
127	return 0;
128	}
129
68070c10	130	static void
34b34921	131	i386_initial_stuff (void)
68070c10	132	{
aa5ca48f	133	i386_low_init_dregs (&debug_reg_state);
34b34921 PA	134	debug_registers_changed = 0;
34b34921 PA	135	debug_registers_used = 0;
68070c10 PA	136	}
	137
	138	static void
34b34921	139	i386_get_thread_context (win32_thread_info th, DEBUG_EVENT current_event)
68070c10	140	{
912cf4ba PA	141	/* Requesting the CONTEXT_EXTENDED_REGISTERS register set fails if
	142	the system doesn't support extended registers. */
	143	static DWORD extended_registers = CONTEXT_EXTENDED_REGISTERS;
34b34921	144
912cf4ba PA	145	again:
	146	th->context.ContextFlags = (CONTEXT_FULL
	147	\| CONTEXT_FLOATING_POINT
	148	\| CONTEXT_DEBUG_REGISTERS
	149	\| extended_registers);
	150
	151	if (!GetThreadContext (th->h, &th->context))
	152	{
	153	DWORD e = GetLastError ();
	154
	155	if (extended_registers && e == ERROR_INVALID_PARAMETER)
	156	{
	157	extended_registers = 0;
	158	goto again;
	159	}
	160
	161	error ("GetThreadContext failure %ld\n", (long) e);
	162	}
34b34921 PA	163
	164	debug_registers_changed = 0;
	165
	166	if (th->tid == current_event->dwThreadId)
	167	{
	168	/* Copy dr values from the current thread. */
aa5ca48f DE	169	struct i386_debug_reg_state *dr = &debug_reg_state;
	170	dr->dr_mirror[0] = th->context.Dr0;
	171	dr->dr_mirror[1] = th->context.Dr1;
	172	dr->dr_mirror[2] = th->context.Dr2;
	173	dr->dr_mirror[3] = th->context.Dr3;
	174	dr->dr_status_mirror = th->context.Dr6;
	175	dr->dr_control_mirror = th->context.Dr7;
34b34921	176	}
68070c10 PA	177	}
	178
	179	static void
34b34921	180	i386_set_thread_context (win32_thread_info th, DEBUG_EVENT current_event)
68070c10	181	{
34b34921 PA	182	if (debug_registers_changed)
34b34921 PA	183	{
aa5ca48f DE	184	struct i386_debug_reg_state *dr = &debug_reg_state;
	185	th->context.Dr0 = dr->dr_mirror[0];
	186	th->context.Dr1 = dr->dr_mirror[1];
	187	th->context.Dr2 = dr->dr_mirror[2];
	188	th->context.Dr3 = dr->dr_mirror[3];
	189	/* th->context.Dr6 = dr->dr_status_mirror;
34b34921	190	FIXME: should we set dr6 also ?? */
aa5ca48f	191	th->context.Dr7 = dr->dr_control_mirror;
34b34921 PA	192	}
	193
	194	SetThreadContext (th->h, &th->context);
68070c10 PA	195	}
68070c10 PA	196
68070c10	197	static void
34b34921	198	i386_thread_added (win32_thread_info *th)
68070c10	199	{
34b34921 PA	200	/* Set the debug registers for the new thread if they are used. */
34b34921 PA	201	if (debug_registers_used)
68070c10	202	{
aa5ca48f	203	struct i386_debug_reg_state *dr = &debug_reg_state;
34b34921 PA	204	th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS;
	205	GetThreadContext (th->h, &th->context);
	206
aa5ca48f DE	207	th->context.Dr0 = dr->dr_mirror[0];
	208	th->context.Dr1 = dr->dr_mirror[1];
	209	th->context.Dr2 = dr->dr_mirror[2];
	210	th->context.Dr3 = dr->dr_mirror[3];
	211	/* th->context.Dr6 = dr->dr_status_mirror;
34b34921	212	FIXME: should we set dr6 also ?? */
aa5ca48f	213	th->context.Dr7 = dr->dr_control_mirror;
34b34921 PA	214
	215	SetThreadContext (th->h, &th->context);
	216	th->context.ContextFlags = 0;
68070c10	217	}
68070c10 PA	218	}
	219
	220	static void
34b34921	221	i386_single_step (win32_thread_info *th)
68070c10 PA	222	{
	223	th->context.EFlags \|= FLAG_TRACE_BIT;
	224	}
	225
1c07cc19	226	#ifndef __x86_64__
54709339	227
68070c10 PA	228	/* An array of offset mappings into a Win32 Context structure.
	229	This is a one-to-one mapping which is indexed by gdb's register
	230	numbers. It retrieves an offset into the context structure where
	231	the 4 byte register is located.
	232	An offset value of -1 indicates that Win32 does not provide this
	233	register in it's CONTEXT structure. In this case regptr will return
	234	a pointer into a dummy register. */
	235	#define context_offset(x) ((int)&(((CONTEXT *)NULL)->x))
	236	static const int mappings[] = {
	237	context_offset (Eax),
	238	context_offset (Ecx),
	239	context_offset (Edx),
	240	context_offset (Ebx),
	241	context_offset (Esp),
	242	context_offset (Ebp),
	243	context_offset (Esi),
	244	context_offset (Edi),
	245	context_offset (Eip),
	246	context_offset (EFlags),
	247	context_offset (SegCs),
	248	context_offset (SegSs),
	249	context_offset (SegDs),
	250	context_offset (SegEs),
	251	context_offset (SegFs),
	252	context_offset (SegGs),
	253	context_offset (FloatSave.RegisterArea[0 * 10]),
	254	context_offset (FloatSave.RegisterArea[1 * 10]),
	255	context_offset (FloatSave.RegisterArea[2 * 10]),
	256	context_offset (FloatSave.RegisterArea[3 * 10]),
	257	context_offset (FloatSave.RegisterArea[4 * 10]),
	258	context_offset (FloatSave.RegisterArea[5 * 10]),
	259	context_offset (FloatSave.RegisterArea[6 * 10]),
	260	context_offset (FloatSave.RegisterArea[7 * 10]),
	261	context_offset (FloatSave.ControlWord),
	262	context_offset (FloatSave.StatusWord),
	263	context_offset (FloatSave.TagWord),
	264	context_offset (FloatSave.ErrorSelector),
	265	context_offset (FloatSave.ErrorOffset),
	266	context_offset (FloatSave.DataSelector),
	267	context_offset (FloatSave.DataOffset),
	268	context_offset (FloatSave.ErrorSelector),
	269	/* XMM0-7 */
	270	context_offset (ExtendedRegisters[10 * 16]),
	271	context_offset (ExtendedRegisters[11 * 16]),
	272	context_offset (ExtendedRegisters[12 * 16]),
	273	context_offset (ExtendedRegisters[13 * 16]),
	274	context_offset (ExtendedRegisters[14 * 16]),
	275	context_offset (ExtendedRegisters[15 * 16]),
	276	context_offset (ExtendedRegisters[16 * 16]),
	277	context_offset (ExtendedRegisters[17 * 16]),
	278	/* MXCSR */
	279	context_offset (ExtendedRegisters[24])
	280	};
	281	#undef context_offset
	282
1c07cc19	283	#else /* __x86_64__ */
54709339 PM	284
	285	#define context_offset(x) (offsetof (CONTEXT, x))
	286	static const int mappings[] =
	287	{
	288	context_offset (Rax),
	289	context_offset (Rbx),
	290	context_offset (Rcx),
	291	context_offset (Rdx),
	292	context_offset (Rsi),
	293	context_offset (Rdi),
	294	context_offset (Rbp),
	295	context_offset (Rsp),
	296	context_offset (R8),
	297	context_offset (R9),
	298	context_offset (R10),
	299	context_offset (R11),
	300	context_offset (R12),
	301	context_offset (R13),
	302	context_offset (R14),
	303	context_offset (R15),
	304	context_offset (Rip),
	305	context_offset (EFlags),
	306	context_offset (SegCs),
	307	context_offset (SegSs),
	308	context_offset (SegDs),
	309	context_offset (SegEs),
	310	context_offset (SegFs),
	311	context_offset (SegGs),
	312	context_offset (FloatSave.FloatRegisters[0]),
	313	context_offset (FloatSave.FloatRegisters[1]),
	314	context_offset (FloatSave.FloatRegisters[2]),
	315	context_offset (FloatSave.FloatRegisters[3]),
	316	context_offset (FloatSave.FloatRegisters[4]),
	317	context_offset (FloatSave.FloatRegisters[5]),
	318	context_offset (FloatSave.FloatRegisters[6]),
	319	context_offset (FloatSave.FloatRegisters[7]),
	320	context_offset (FloatSave.ControlWord),
	321	context_offset (FloatSave.StatusWord),
	322	context_offset (FloatSave.TagWord),
	323	context_offset (FloatSave.ErrorSelector),
	324	context_offset (FloatSave.ErrorOffset),
	325	context_offset (FloatSave.DataSelector),
	326	context_offset (FloatSave.DataOffset),
	327	context_offset (FloatSave.ErrorSelector)
	328	/* XMM0-7 */ ,
	329	context_offset (Xmm0),
	330	context_offset (Xmm1),
	331	context_offset (Xmm2),
	332	context_offset (Xmm3),
	333	context_offset (Xmm4),
	334	context_offset (Xmm5),
	335	context_offset (Xmm6),
	336	context_offset (Xmm7),
	337	context_offset (Xmm8),
	338	context_offset (Xmm9),
	339	context_offset (Xmm10),
	340	context_offset (Xmm11),
	341	context_offset (Xmm12),
	342	context_offset (Xmm13),
	343	context_offset (Xmm14),
	344	context_offset (Xmm15),
	345	/* MXCSR */
	346	context_offset (FloatSave.MxCsr)
	347	};
348	#undef context_offset
349
1c07cc19	350	#endif /* __x86_64__ */
54709339	351
34b34921 PA	352	/* Fetch register from gdbserver regcache data. */
34b34921 PA	353	static void
442ea881 PA	354	i386_fetch_inferior_register (struct regcache *regcache,
442ea881 PA	355	win32_thread_info *th, int r)
34b34921 PA	356	{
	357	char context_offset = (char ) &th->context + mappings[r];
	358
	359	long l;
	360	if (r == FCS_REGNUM)
	361	{
	362	l = ((long ) context_offset) & 0xffff;
442ea881	363	supply_register (regcache, r, (char *) &l);
34b34921 PA	364	}
	365	else if (r == FOP_REGNUM)
	366	{
	367	l = (((long ) context_offset) >> 16) & ((1 << 11) - 1);
442ea881	368	supply_register (regcache, r, (char *) &l);
34b34921 PA	369	}
34b34921 PA	370	else
442ea881	371	supply_register (regcache, r, context_offset);
34b34921 PA	372	}
	373
	374	/* Store a new register value into the thread context of TH. */
	375	static void
442ea881 PA	376	i386_store_inferior_register (struct regcache *regcache,
442ea881 PA	377	win32_thread_info *th, int r)
34b34921 PA	378	{
34b34921 PA	379	char context_offset = (char ) &th->context + mappings[r];
442ea881	380	collect_register (regcache, r, context_offset);
34b34921 PA	381	}
34b34921 PA	382
912cf4ba PA	383	static const unsigned char i386_win32_breakpoint = 0xcc;
	384	#define i386_win32_breakpoint_len 1
	385
54709339 PM	386	static void
	387	init_windows_x86 (void)
	388	{
1c07cc19	389	#ifdef __x86_64__
54709339 PM	390	init_registers_amd64 ();
	391	#else
	392	init_registers_i386 ();
	393	#endif
	394	}
	395
68070c10	396	struct win32_target_ops the_low_target = {
54709339	397	init_windows_x86,
68070c10	398	sizeof (mappings) / sizeof (mappings[0]),
34b34921 PA	399	i386_initial_stuff,
	400	i386_get_thread_context,
	401	i386_set_thread_context,
	402	i386_thread_added,
	403	i386_fetch_inferior_register,
	404	i386_store_inferior_register,
	405	i386_single_step,
912cf4ba PA	406	&i386_win32_breakpoint,
912cf4ba PA	407	i386_win32_breakpoint_len,
aa5ca48f DE	408	i386_insert_point,
	409	i386_remove_point,
	410	i386_stopped_by_watchpoint,
	411	i386_stopped_data_address
68070c10	412	};