[thirdparty/binutils-gdb.git] / gdb / findvar.c

/* Find a variable's value in memory, for GDB, the GNU debugger.
   Copyright (C) 1986, 1987 Free Software Foundation, Inc.

GDB is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY.  No author or distributor accepts responsibility to anyone
for the consequences of using it or for whether it serves any
particular purpose or works at all, unless he says so in writing.
Refer to the GDB General Public License for full details.

Everyone is granted permission to copy, modify and redistribute GDB,
but only under the conditions described in the GDB General Public
License.  A copy of this license is supposed to have been given to you
along with GDB so you can know your rights and responsibilities.  It
should be in a file named COPYING.  Among other things, the copyright
notice and this notice must be preserved on all copies.

In other words, go ahead and share GDB, but don't try to stop
anyone else from sharing it farther.  Help stamp out software hoarding!
*/

#include "defs.h"
#include "initialize.h"
#include "param.h"
#include "symtab.h"
#include "frame.h"
#include "value.h"

CORE_ADDR read_register ();

START_FILE
\f
/* Return the address in which frame FRAME's value of register REGNUM
   has been saved in memory.  Or return zero if it has not been saved.
   If REGNUM specifies the SP, the value we return is actually
   the SP value, not an address where it was saved.  */

static CORE_ADDR
find_saved_register (frame, regnum)
     FRAME frame;
     int regnum;
{
  struct frame_info fi;
  struct frame_saved_regs saved_regs;

  register FRAME frame1 = 0;
  register CORE_ADDR addr = 0;

  while (1)
    {
      QUIT;
      fi = get_prev_frame_info (frame1);
      if (fi.frame == 0 || fi.frame == frame)
	break;
      get_frame_saved_regs (&fi, &saved_regs);
      if (saved_regs.regs[regnum])
	addr = saved_regs.regs[regnum];
      frame1 = fi.frame;
    }

  return addr;
}

/* Copy the bytes of register REGNUM, relative to the current stack frame,
   into our memory at MYADDR.
   The number of bytes copied is REGISTER_RAW_SIZE (REGNUM).  */

void
read_relative_register_raw_bytes (regnum, myaddr)
     int regnum;
     char *myaddr;
{
  register CORE_ADDR addr;

  if (regnum == FP_REGNUM)
    {
      bcopy (&selected_frame, myaddr, sizeof (CORE_ADDR));
      return;
    }

  addr = find_saved_register (selected_frame, regnum);

  if (addr)
    {
      if (regnum == SP_REGNUM)
	{
	  CORE_ADDR buffer = addr;
	  bcopy (&buffer, myaddr, sizeof (CORE_ADDR));
	}
      else
	read_memory (addr, myaddr, REGISTER_RAW_SIZE (regnum));
      return;
    }
  read_register_bytes (REGISTER_BYTE (regnum),
		       myaddr, REGISTER_RAW_SIZE (regnum));
}

/* Return a `value' with the contents of register REGNUM
   in its virtual format, with the type specified by
   REGISTER_VIRTUAL_TYPE.  */

value
value_of_register (regnum)
     int regnum;
{
  register CORE_ADDR addr = find_saved_register (selected_frame, regnum);
  register value val;
  char raw_buffer[MAX_REGISTER_RAW_SIZE];
  char virtual_buffer[MAX_REGISTER_VIRTUAL_SIZE];

  if (addr)
    {
      if (regnum == SP_REGNUM)
	return value_from_long (builtin_type_int, addr);
      read_memory (addr, raw_buffer, REGISTER_RAW_SIZE (regnum));
    }
  else
    read_register_bytes (REGISTER_BYTE (regnum), raw_buffer,
			 REGISTER_RAW_SIZE (regnum));

  REGISTER_CONVERT_TO_VIRTUAL (regnum, raw_buffer, virtual_buffer);
  val = allocate_value (REGISTER_VIRTUAL_TYPE (regnum));
  bcopy (virtual_buffer, VALUE_CONTENTS (val), REGISTER_VIRTUAL_SIZE (regnum));
  VALUE_LVAL (val) = addr ? lval_memory : lval_register;
  VALUE_ADDRESS (val) = addr ? addr : REGISTER_BYTE (regnum);
  VALUE_REGNO (val) = regnum;
  return val;
}
\f
/* Low level examining and depositing of registers.

   Note that you must call `fetch_registers' once
   before examining or depositing any registers.  */

char registers[REGISTER_BYTES];

/* Copy LEN bytes of consecutive data from registers
   starting with the REGBYTE'th byte of register data
   into memory at MYADDR.  */

read_register_bytes (regbyte, myaddr, len)
     int regbyte;
     char *myaddr;
     int len;
{
  bcopy (&registers[regbyte], myaddr, len);
}

/* Copy LEN bytes of consecutive data from memory at MYADDR
   into registers starting with the REGBYTE'th byte of register data.  */

write_register_bytes (regbyte, myaddr, len)
     int regbyte;
     char *myaddr;
     int len;
{
  bcopy (myaddr, &registers[regbyte], len);
  if (have_inferior_p ())
    store_inferior_registers (-1);
}

/* Return the contents of register REGNO,
   regarding it as an integer.  */

CORE_ADDR
read_register (regno)
     int regno;
{
  /* This loses when REGISTER_RAW_SIZE (regno) != sizeof (int) */
  return *(int *) &registers[REGISTER_BYTE (regno)];
}

/* Store VALUE in the register number REGNO, regarded as an integer.  */

void
write_register (regno, val)
     int regno, val;
{
  /* This loses when REGISTER_RAW_SIZE (regno) != sizeof (int) */
  *(int *) &registers[REGISTER_BYTE (regno)] = val;

  if (have_inferior_p ())
    store_inferior_registers (regno);
}

/* Record that register REGNO contains VAL.
   This is used when the value is obtained from the inferior or core dump,
   so there is no need to store the value there.  */

void
supply_register (regno, val)
     int regno;
     char *val;
{
  bcopy (val, &registers[REGISTER_BYTE (regno)], REGISTER_RAW_SIZE (regno));
}
\f
/* Given a struct symbol for a variable,
   and a stack frame address, read the value of the variable
   and return a (pointer to a) struct value containing the value.  */

value
read_var_value (var, frame)
     register struct symbol *var;
     FRAME frame;
{
  register value v;

  struct frame_info fi;

  struct type *type = SYMBOL_TYPE (var);
  register CORE_ADDR addr = 0;
  int val = SYMBOL_VALUE (var);
  register int len;

  if (SYMBOL_CLASS (var) == LOC_BLOCK)
    type = lookup_function_type (type, 0);

  v = allocate_value (type);
  VALUE_LVAL (v) = lval_memory;	/* The most likely possibility.  */
  len = TYPE_LENGTH (type);

  if (frame == 0) frame = selected_frame;

  switch (SYMBOL_CLASS (var))
    {
    case LOC_CONST:
    case LOC_LABEL:
      bcopy (&val, VALUE_CONTENTS (v), len);
      VALUE_LVAL (v) = not_lval;
      return v;

    case LOC_CONST_BYTES:
      bcopy (val, VALUE_CONTENTS (v), len);
      VALUE_LVAL (v) = not_lval;
      return v;

    case LOC_STATIC:
      addr = val;
      break;

    case LOC_ARG:
      fi = get_frame_info (frame);
      addr = val + FRAME_ARGS_ADDRESS (fi);
      break;

    case LOC_LOCAL:
      fi = get_frame_info (frame);
      addr = val + FRAME_LOCALS_ADDRESS (fi);
      break;

    case LOC_TYPEDEF:
      error ("Cannot look up value of a typedef");

    case LOC_BLOCK:
      VALUE_ADDRESS (v) = BLOCK_START (SYMBOL_BLOCK_VALUE (var));
      return v;

    case LOC_REGISTER:
      {
	char raw_buffer[MAX_REGISTER_RAW_SIZE];
	char virtual_buffer[MAX_REGISTER_VIRTUAL_SIZE];

	VALUE_REGNO (v) = val;

	/* Locate the register's contents in a real register or in core;
	   read the data in raw format.  */

	addr = find_saved_register (frame, val);
	if (addr == 0)
	  {
	    /* Value is really in a register.  */

	    VALUE_LVAL (v) = lval_register;
	    VALUE_ADDRESS (v) = REGISTER_BYTE (val);

	    read_register_bytes (REGISTER_BYTE (val),
				 raw_buffer, REGISTER_RAW_SIZE (val));
	  }
	else
	  {
	    /* Value was in a register that has been saved in memory.  */

	    read_memory (addr, raw_buffer, REGISTER_RAW_SIZE (val));
	    VALUE_ADDRESS (v) = addr;
	  }

	/* Convert the raw contents to virtual contents.
	   (Just copy them if the formats are the same.)  */

	REGISTER_CONVERT_TO_VIRTUAL (val, raw_buffer, virtual_buffer);

	if (REGISTER_CONVERTIBLE (val))
	  {
	    /* When the raw and virtual formats differ, the virtual format
	       corresponds to a specific data type.  If we want that type,
	       copy the data into the value.
	       Otherwise, do a type-conversion.  */

	    if (type != REGISTER_VIRTUAL_TYPE (val))
	      {
		/* eg a variable of type `float' in a 68881 register
		   with raw type `extended' and virtual type `double'.
		   Fetch it as a `double' and then convert to `float'.  */
		v = allocate_value (REGISTER_VIRTUAL_TYPE (val));
		bcopy (virtual_buffer, VALUE_CONTENTS (v), len);
		v = value_cast (type, v);
	      }
	    else
	      bcopy (virtual_buffer, VALUE_CONTENTS (v), len);
	  }
	else
	  {
	    /* Raw and virtual formats are the same for this register.  */

	    union { int i; char c; } test;
	    /* If we want less than the full size, we need to
	       test for a big-endian or little-endian machine.  */
	    test.i = 1;
	    if (test.c != 1 && len < REGISTER_RAW_SIZE (val))
	      {
		/* Big-endian, and we want less than full size.  */
		VALUE_OFFSET (v) = REGISTER_RAW_SIZE (val) - len;
	      }

	    bcopy (virtual_buffer + VALUE_OFFSET (v),
		   VALUE_CONTENTS (v), len);
	  }

	return v;
      }
    }

  read_memory (addr, VALUE_CONTENTS (v), len);
  VALUE_ADDRESS (v) = addr;
  return v;
}
\f
/* Given a struct symbol for a variable,
   and a stack frame address,
   return a (pointer to a) struct value containing the variable's address.  */

value
locate_var_value (var, frame)
     register struct symbol *var;
     FRAME frame;
{
  register CORE_ADDR addr = 0;
  int val = SYMBOL_VALUE (var);
  struct frame_info fi;

  if (frame == 0) frame = selected_frame;

  switch (SYMBOL_CLASS (var))
    {
    case LOC_CONST:
    case LOC_CONST_BYTES:
      error ("Address requested for identifier \"%s\" which is a constant.",
	     SYMBOL_NAME (var));

    case LOC_REGISTER:
      addr = find_saved_register (frame, val);
      if (addr != 0)
	{
	  union { int i; char c; } test;
	  int len = TYPE_LENGTH (SYMBOL_TYPE (var));
	  /* If var is less than the full size of register, we need to
	     test for a big-endian or little-endian machine.  */
	  test.i = 1;
	  if (test.c != 1 && len < REGISTER_RAW_SIZE (val))
	    /* Big-endian, and we want less than full size.  */
	    addr += REGISTER_RAW_SIZE (val) - len;
	  break;
	}
      error ("Address requested for identifier \"%s\" which is in a register.",
	     SYMBOL_NAME (var));

    case LOC_STATIC:
    case LOC_LABEL:
      addr = val;
      break;

    case LOC_ARG:
      fi = get_frame_info (frame);
      addr = val + FRAME_ARGS_ADDRESS (fi);
      break;

    case LOC_LOCAL:
      fi = get_frame_info (frame);
      addr = val + FRAME_LOCALS_ADDRESS (fi);
      break;

    case LOC_TYPEDEF:
      error ("Address requested for identifier \"%s\" which is a typedef.",
	     SYMBOL_NAME (var));

    case LOC_BLOCK:
      addr = BLOCK_START (SYMBOL_BLOCK_VALUE (var));
      break;
    }

  return value_cast (lookup_pointer_type (SYMBOL_TYPE (var)),
		     value_from_long (builtin_type_long, addr));
}

static
initialize ()
{}

END_FILE
Commit	Line	Data
7b4ac7e1	1	/* Find a variable's value in memory, for GDB, the GNU debugger.
	2	Copyright (C) 1986, 1987 Free Software Foundation, Inc.
	3
	4	GDB is distributed in the hope that it will be useful, but WITHOUT ANY
	5	WARRANTY. No author or distributor accepts responsibility to anyone
	6	for the consequences of using it or for whether it serves any
	7	particular purpose or works at all, unless he says so in writing.
	8	Refer to the GDB General Public License for full details.
	9
	10	Everyone is granted permission to copy, modify and redistribute GDB,
	11	but only under the conditions described in the GDB General Public
	12	License. A copy of this license is supposed to have been given to you
	13	along with GDB so you can know your rights and responsibilities. It
	14	should be in a file named COPYING. Among other things, the copyright
	15	notice and this notice must be preserved on all copies.
	16
	17	In other words, go ahead and share GDB, but don't try to stop
	18	anyone else from sharing it farther. Help stamp out software hoarding!
	19	*/
	20
	21	#include "defs.h"
	22	#include "initialize.h"
	23	#include "param.h"
	24	#include "symtab.h"
	25	#include "frame.h"
	26	#include "value.h"
	27
	28	CORE_ADDR read_register ();
	29
	30	START_FILE
	31	\f
	32	/* Return the address in which frame FRAME's value of register REGNUM
	33	has been saved in memory. Or return zero if it has not been saved.
	34	If REGNUM specifies the SP, the value we return is actually
	35	the SP value, not an address where it was saved. */
	36
	37	static CORE_ADDR
	38	find_saved_register (frame, regnum)
	39	FRAME frame;
	40	int regnum;
	41	{
	42	struct frame_info fi;
	43	struct frame_saved_regs saved_regs;
	44
	45	register FRAME frame1 = 0;
	46	register CORE_ADDR addr = 0;
	47
	48	while (1)
	49	{
	50	QUIT;
	51	fi = get_prev_frame_info (frame1);
	52	if (fi.frame == 0 \|\| fi.frame == frame)
	53	break;
	54	get_frame_saved_regs (&fi, &saved_regs);
	55	if (saved_regs.regs[regnum])
	56	addr = saved_regs.regs[regnum];
	57	frame1 = fi.frame;
	58	}
	59
	60	return addr;
	61	}
	62
	63	/* Copy the bytes of register REGNUM, relative to the current stack frame,
	64	into our memory at MYADDR.
65	The number of bytes copied is REGISTER_RAW_SIZE (REGNUM). */
66
67	void
68	read_relative_register_raw_bytes (regnum, myaddr)
69	int regnum;
70	char *myaddr;
71	{
72	register CORE_ADDR addr;
73
74	if (regnum == FP_REGNUM)
75	{
76	bcopy (&selected_frame, myaddr, sizeof (CORE_ADDR));
77	return;
78	}
79
80	addr = find_saved_register (selected_frame, regnum);
81
82	if (addr)
83	{
84	if (regnum == SP_REGNUM)
85	{
86	CORE_ADDR buffer = addr;
87	bcopy (&buffer, myaddr, sizeof (CORE_ADDR));
88	}
89	else
90	read_memory (addr, myaddr, REGISTER_RAW_SIZE (regnum));
91	return;
92	}
93	read_register_bytes (REGISTER_BYTE (regnum),
94	myaddr, REGISTER_RAW_SIZE (regnum));
95	}
96
97	/* Return a `value' with the contents of register REGNUM
98	in its virtual format, with the type specified by
99	REGISTER_VIRTUAL_TYPE. */
100
101	value
102	value_of_register (regnum)
103	int regnum;
104	{
105	register CORE_ADDR addr = find_saved_register (selected_frame, regnum);
106	register value val;
107	char raw_buffer[MAX_REGISTER_RAW_SIZE];
108	char virtual_buffer[MAX_REGISTER_VIRTUAL_SIZE];
109
110	if (addr)
111	{
112	if (regnum == SP_REGNUM)
113	return value_from_long (builtin_type_int, addr);
114	read_memory (addr, raw_buffer, REGISTER_RAW_SIZE (regnum));
115	}
116	else
117	read_register_bytes (REGISTER_BYTE (regnum), raw_buffer,
118	REGISTER_RAW_SIZE (regnum));
119
120	REGISTER_CONVERT_TO_VIRTUAL (regnum, raw_buffer, virtual_buffer);
121	val = allocate_value (REGISTER_VIRTUAL_TYPE (regnum));
122	bcopy (virtual_buffer, VALUE_CONTENTS (val), REGISTER_VIRTUAL_SIZE (regnum));
123	VALUE_LVAL (val) = addr ? lval_memory : lval_register;
124	VALUE_ADDRESS (val) = addr ? addr : REGISTER_BYTE (regnum);
125	VALUE_REGNO (val) = regnum;
126	return val;
127	}
128	\f
129	/* Low level examining and depositing of registers.
130
131	Note that you must call `fetch_registers' once
132	before examining or depositing any registers. */
133
134	char registers[REGISTER_BYTES];
135
136	/* Copy LEN bytes of consecutive data from registers
137	starting with the REGBYTE'th byte of register data
138	into memory at MYADDR. */
139
140	read_register_bytes (regbyte, myaddr, len)
141	int regbyte;
142	char *myaddr;
143	int len;
144	{
145	bcopy (&registers[regbyte], myaddr, len);
146	}
147
148	/* Copy LEN bytes of consecutive data from memory at MYADDR
149	into registers starting with the REGBYTE'th byte of register data. */
150
151	write_register_bytes (regbyte, myaddr, len)
152	int regbyte;
153	char *myaddr;
154	int len;
155	{
156	bcopy (myaddr, &registers[regbyte], len);
157	if (have_inferior_p ())
158	store_inferior_registers (-1);
159	}
160
161	/* Return the contents of register REGNO,
162	regarding it as an integer. */
163
164	CORE_ADDR
165	read_register (regno)
166	int regno;
167	{
168	/* This loses when REGISTER_RAW_SIZE (regno) != sizeof (int) */
169	return (int ) &registers[REGISTER_BYTE (regno)];
170	}
171
172	/* Store VALUE in the register number REGNO, regarded as an integer. */
173
174	void
175	write_register (regno, val)
176	int regno, val;
177	{
178	/* This loses when REGISTER_RAW_SIZE (regno) != sizeof (int) */
179	(int ) &registers[REGISTER_BYTE (regno)] = val;
180
181	if (have_inferior_p ())
182	store_inferior_registers (regno);
183	}
184
185	/* Record that register REGNO contains VAL.
186	This is used when the value is obtained from the inferior or core dump,
187	so there is no need to store the value there. */
188
189	void
190	supply_register (regno, val)
191	int regno;
192	char *val;
193	{
194	bcopy (val, &registers[REGISTER_BYTE (regno)], REGISTER_RAW_SIZE (regno));
195	}
196	\f
197	/* Given a struct symbol for a variable,
198	and a stack frame address, read the value of the variable
199	and return a (pointer to a) struct value containing the value. */
200
201	value
202	read_var_value (var, frame)
203	register struct symbol *var;
204	FRAME frame;
205	{
206	register value v;
207
208	struct frame_info fi;
209
210	struct type *type = SYMBOL_TYPE (var);
211	register CORE_ADDR addr = 0;
212	int val = SYMBOL_VALUE (var);
213	register int len;
214
215	if (SYMBOL_CLASS (var) == LOC_BLOCK)
632ea0cc	216	type = lookup_function_type (type, 0);
7b4ac7e1	217
	218	v = allocate_value (type);
	219	VALUE_LVAL (v) = lval_memory; /* The most likely possibility. */
	220	len = TYPE_LENGTH (type);
	221
	222	if (frame == 0) frame = selected_frame;
	223
	224	switch (SYMBOL_CLASS (var))
	225	{
	226	case LOC_CONST:
	227	case LOC_LABEL:
	228	bcopy (&val, VALUE_CONTENTS (v), len);
	229	VALUE_LVAL (v) = not_lval;
	230	return v;
	231
	232	case LOC_CONST_BYTES:
	233	bcopy (val, VALUE_CONTENTS (v), len);
	234	VALUE_LVAL (v) = not_lval;
	235	return v;
	236
	237	case LOC_STATIC:
	238	addr = val;
	239	break;
	240
	241	case LOC_ARG:
	242	fi = get_frame_info (frame);
	243	addr = val + FRAME_ARGS_ADDRESS (fi);
	244	break;
	245
	246	case LOC_LOCAL:
	247	fi = get_frame_info (frame);
	248	addr = val + FRAME_LOCALS_ADDRESS (fi);
	249	break;
	250
	251	case LOC_TYPEDEF:
	252	error ("Cannot look up value of a typedef");
	253
	254	case LOC_BLOCK:
	255	VALUE_ADDRESS (v) = BLOCK_START (SYMBOL_BLOCK_VALUE (var));
	256	return v;
	257
	258	case LOC_REGISTER:
	259	{
	260	char raw_buffer[MAX_REGISTER_RAW_SIZE];
	261	char virtual_buffer[MAX_REGISTER_VIRTUAL_SIZE];
	262
	263	VALUE_REGNO (v) = val;
	264
	265	/* Locate the register's contents in a real register or in core;
	266	read the data in raw format. */
	267
	268	addr = find_saved_register (frame, val);
	269	if (addr == 0)
	270	{
	271	/* Value is really in a register. */
	272
	273	VALUE_LVAL (v) = lval_register;
	274	VALUE_ADDRESS (v) = REGISTER_BYTE (val);
	275
	276	read_register_bytes (REGISTER_BYTE (val),
	277	raw_buffer, REGISTER_RAW_SIZE (val));
	278	}
	279	else
	280	{
281	/* Value was in a register that has been saved in memory. */
282
283	read_memory (addr, raw_buffer, REGISTER_RAW_SIZE (val));
284	VALUE_ADDRESS (v) = addr;
285	}
286
287	/* Convert the raw contents to virtual contents.
288	(Just copy them if the formats are the same.) */
289
290	REGISTER_CONVERT_TO_VIRTUAL (val, raw_buffer, virtual_buffer);
291
292	if (REGISTER_CONVERTIBLE (val))
293	{
294	/* When the raw and virtual formats differ, the virtual format
295	corresponds to a specific data type. If we want that type,
296	copy the data into the value.
297	Otherwise, do a type-conversion. */
298
299	if (type != REGISTER_VIRTUAL_TYPE (val))
300	{
301	/* eg a variable of type `float' in a 68881 register
302	with raw type `extended' and virtual type `double'.
303	Fetch it as a `double' and then convert to `float'. */
304	v = allocate_value (REGISTER_VIRTUAL_TYPE (val));
305	bcopy (virtual_buffer, VALUE_CONTENTS (v), len);
306	v = value_cast (type, v);
307	}
308	else
309	bcopy (virtual_buffer, VALUE_CONTENTS (v), len);
310	}
311	else
312	{
313	/* Raw and virtual formats are the same for this register. */
314
315	union { int i; char c; } test;
316	/* If we want less than the full size, we need to
317	test for a big-endian or little-endian machine. */
318	test.i = 1;
319	if (test.c != 1 && len < REGISTER_RAW_SIZE (val))
320	{
321	/* Big-endian, and we want less than full size. */
322	VALUE_OFFSET (v) = REGISTER_RAW_SIZE (val) - len;
323	}
324
325	bcopy (virtual_buffer + VALUE_OFFSET (v),
326	VALUE_CONTENTS (v), len);
327	}
328
329	return v;
330	}
331	}
332
333	read_memory (addr, VALUE_CONTENTS (v), len);
334	VALUE_ADDRESS (v) = addr;
335	return v;
336	}
337	\f
338	/* Given a struct symbol for a variable,
339	and a stack frame address,
340	return a (pointer to a) struct value containing the variable's address. */
341
342	value
343	locate_var_value (var, frame)
344	register struct symbol *var;
345	FRAME frame;
346	{
347	register CORE_ADDR addr = 0;
348	int val = SYMBOL_VALUE (var);
349	struct frame_info fi;
350
351	if (frame == 0) frame = selected_frame;
352
353	switch (SYMBOL_CLASS (var))
354	{
355	case LOC_CONST:
356	case LOC_CONST_BYTES:
357	error ("Address requested for identifier \"%s\" which is a constant.",
358	SYMBOL_NAME (var));
359
360	case LOC_REGISTER:
361	addr = find_saved_register (frame, val);
362	if (addr != 0)
363	{
364	union { int i; char c; } test;
365	int len = TYPE_LENGTH (SYMBOL_TYPE (var));
366	/* If var is less than the full size of register, we need to
367	test for a big-endian or little-endian machine. */
368	test.i = 1;
369	if (test.c != 1 && len < REGISTER_RAW_SIZE (val))
370	/* Big-endian, and we want less than full size. */
632ea0cc	371	addr += REGISTER_RAW_SIZE (val) - len;
7b4ac7e1	372	break;
	373	}
	374	error ("Address requested for identifier \"%s\" which is in a register.",
	375	SYMBOL_NAME (var));
	376
	377	case LOC_STATIC:
	378	case LOC_LABEL:
	379	addr = val;
	380	break;
	381
	382	case LOC_ARG:
	383	fi = get_frame_info (frame);
	384	addr = val + FRAME_ARGS_ADDRESS (fi);
	385	break;
	386
	387	case LOC_LOCAL:
	388	fi = get_frame_info (frame);
	389	addr = val + FRAME_LOCALS_ADDRESS (fi);
	390	break;
	391
	392	case LOC_TYPEDEF:
	393	error ("Address requested for identifier \"%s\" which is a typedef.",
	394	SYMBOL_NAME (var));
	395
	396	case LOC_BLOCK:
	397	addr = BLOCK_START (SYMBOL_BLOCK_VALUE (var));
	398	break;
	399	}
	400
	401	return value_cast (lookup_pointer_type (SYMBOL_TYPE (var)),
	402	value_from_long (builtin_type_long, addr));
	403	}
	404
	405	static
	406	initialize ()
	407	{}
	408
	409	END_FILE