[thirdparty/binutils-gdb.git] / gdb / value.h

/* Definitions for values of C expressions, for GDB.
   Copyright 1986, 1987, 1989, 1992 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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

#if !defined (VALUE_H)
#define VALUE_H 1

/*
 * The structure which defines the type of a value.  It should never
 * be possible for a program lval value to survive over a call to the inferior
 * (ie to be put into the history list or an internal variable).
 */
enum lval_type {
  /* Not an lval.  */
  not_lval,
  /* In memory.  Could be a saved register.  */
  lval_memory,
  /* In a register.  */
  lval_register,
  /* In a gdb internal variable.  */
  lval_internalvar,
  /* Part of a gdb internal variable (structure field).  */
  lval_internalvar_component,
  /* In a register series in a frame not the current one, which may have been
     partially saved or saved in different places (otherwise would be
     lval_register or lval_memory).  */
  lval_reg_frame_relative
};

struct value
  {
    /* Type of value; either not an lval, or one of the various
       different possible kinds of lval.  */
    enum lval_type lval;
    /* Location of value (if lval).  */
    union
      {
	/* Address in inferior or byte of registers structure.  */
	CORE_ADDR address;
	/* Pointer to internal variable.  */
	struct internalvar *internalvar;
	/* Number of register.  Only used with
	   lval_reg_frame_relative.  */
	int regnum;
      } location;
    /* Describes offset of a value within lval a structure in bytes.  */
    int offset;	
    /* Only used for bitfields; number of bits contained in them.  */
    int bitsize;
    /* Only used for bitfields; position of start of field.
       For BITS_BIG_ENDIAN=0 targets, it is the position of the LSB.
       For BITS_BIG_ENDIAN=1 targets, it is the position of the MSB. */
    int bitpos;
    /* Frame value is relative to.  In practice, this address is only
       used if the value is stored in several registers in other than
       the current frame, and these registers have not all been saved
       at the same place in memory.  This will be described in the
       lval enum above as "lval_reg_frame_relative".  */
    CORE_ADDR frame_addr;
    /* Type of the value.  */
    struct type *type;
    /* Values are stored in a chain, so that they can be deleted
       easily over calls to the inferior.  Values assigned to internal
       variables or put into the value history are taken off this
       list.  */
    struct value *next;
    /* If an lval is forced to repeat, a new value is created with
       these fields set.  The new value is not an lval.  */
    short repeated;
    short repetitions;
    /* Register number if the value is from a register.  Is not kept
       if you take a field of a structure that is stored in a
       register.  Shouldn't it be?  */
    short regno;
    /* If zero, contents of this value are in the contents field.
       If nonzero, contents are in inferior memory at address
       in the location.address field plus the offset field
       (and the lval field should be lval_memory).  */
    char lazy;
    /* If nonzero, this is the value of a variable which does not
       actually exist in the program.  */
    char optimized_out;
    /* Actual contents of the value.  For use of this value; setting
       it uses the stuff above.  Not valid if lazy is nonzero.
       Target byte-order.  We force it to be aligned properly for any
       possible value.  */
    union {
      long contents[1];
      double force_double_align;
#ifdef LONG_LONG
      long long force_longlong_align;
#endif
    } aligner;

  };

typedef struct value *value;

#define VALUE_TYPE(val) (val)->type
#define VALUE_LAZY(val) (val)->lazy
/* VALUE_CONTENTS and VALUE_CONTENTS_RAW both return the address of
   the gdb buffer used to hold a copy of the contents of the lval.  
   VALUE_CONTENTS is used when the contents of the buffer are needed --
   it uses value_fetch_lazy() to load the buffer from the process being 
   debugged if it hasn't already been loaded.  VALUE_CONTENTS_RAW is 
   used when data is being stored into the buffer, or when it is 
   certain that the contents of the buffer are valid.  */
#define VALUE_CONTENTS_RAW(val) ((char *) (val)->aligner.contents)
#define VALUE_CONTENTS(val) ((void)(VALUE_LAZY(val) && value_fetch_lazy(val)),\
			     VALUE_CONTENTS_RAW(val))
extern int
value_fetch_lazy PARAMS ((value val));

#define VALUE_LVAL(val) (val)->lval
#define VALUE_ADDRESS(val) (val)->location.address
#define VALUE_INTERNALVAR(val) (val)->location.internalvar
#define VALUE_FRAME_REGNUM(val) ((val)->location.regnum)
#define VALUE_FRAME(val) ((val)->frame_addr)
#define VALUE_OFFSET(val) (val)->offset
#define VALUE_BITSIZE(val) (val)->bitsize
#define VALUE_BITPOS(val) (val)->bitpos
#define VALUE_NEXT(val) (val)->next
#define VALUE_REPEATED(val) (val)->repeated
#define VALUE_REPETITIONS(val) (val)->repetitions
#define VALUE_REGNO(val) (val)->regno
#define VALUE_OPTIMIZED_OUT(val) ((val)->optimized_out)

/* Convert a REF to the object referenced. */

#define COERCE_REF(arg)    \
{ if (TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_REF)			\
    arg = value_at_lazy (TYPE_TARGET_TYPE (VALUE_TYPE (arg)),		\
			 unpack_long (VALUE_TYPE (arg),			\
				      VALUE_CONTENTS (arg)));}

/* If ARG is an array, convert it to a pointer.
   If ARG is an enum, convert it to an integer.
   If ARG is a function, convert it to a function pointer.

   References are dereferenced.  */

#define COERCE_ARRAY(arg)    \
{ COERCE_REF(arg);							\
  if (VALUE_REPEATED (arg)						\
      || TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_ARRAY)		\
    arg = value_coerce_array (arg);					\
  if (TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_FUNC)                   \
    arg = value_coerce_function (arg);                                  \
  if (TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_ENUM)			\
    arg = value_cast (builtin_type_unsigned_int, arg);			\
}

/* If ARG is an enum, convert it to an integer.  */

#define COERCE_ENUM(arg)    \
{ if (TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_REF)			\
    arg = value_ind (arg);						\
  if (TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_ENUM)			\
    arg = value_cast (builtin_type_unsigned_int, arg);			\
}

/* Internal variables (variables for convenience of use of debugger)
   are recorded as a chain of these structures.  */

struct internalvar
{
  struct internalvar *next;
  char *name;
  value value;
};

/* Pointer to member function.  Depends on compiler implementation. */

#define METHOD_PTR_IS_VIRTUAL(ADDR)  ((ADDR) & 0x80000000)
#define METHOD_PTR_FROM_VOFFSET(OFFSET) (0x80000000 + (OFFSET))
#define METHOD_PTR_TO_VOFFSET(ADDR) (~0x80000000 & (ADDR))

\f
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"

#ifdef __STDC__
struct frame_info;
#endif

extern void
print_address_demangle PARAMS ((CORE_ADDR, FILE *, int));

extern LONGEST
value_as_long PARAMS ((value val));

extern double
value_as_double PARAMS ((value val));

extern CORE_ADDR
value_as_pointer PARAMS ((value val));

extern LONGEST
unpack_long PARAMS ((struct type *type, char *valaddr));

extern double
unpack_double PARAMS ((struct type *type, char *valaddr, int *invp));

extern CORE_ADDR
unpack_pointer PARAMS ((struct type *type, char *valaddr));

extern LONGEST
unpack_field_as_long PARAMS ((struct type *type, char *valaddr,
			      int fieldno));

extern value
value_from_longest PARAMS ((struct type *type, LONGEST num));

extern value
value_from_double PARAMS ((struct type *type, double num));

extern value
value_at PARAMS ((struct type *type, CORE_ADDR addr));

extern value
value_at_lazy PARAMS ((struct type *type, CORE_ADDR addr));

/* FIXME:  Assumes equivalence of "struct frame_info *" and "FRAME" */
extern value
value_from_register PARAMS ((struct type *type, int regnum,
			     struct frame_info * frame));

extern value
value_of_variable PARAMS ((struct symbol *var));

extern value
value_of_register PARAMS ((int regnum));

/* FIXME:  Assumes equivalence of "struct frame_info *" and "FRAME" */
extern value
read_var_value PARAMS ((struct symbol *var, struct frame_info *frame));

/* FIXME:  Assumes equivalence of "struct frame_info *" and "FRAME" */
extern value
locate_var_value PARAMS ((struct symbol *var, struct frame_info *frame));

extern value
allocate_value PARAMS ((struct type *type));

extern value
allocate_repeat_value PARAMS ((struct type *type, int count));

extern value
value_mark PARAMS ((void));

extern void
value_free_to_mark PARAMS ((value mark));

extern value
value_string PARAMS ((char *ptr, int len));

extern value
value_binop PARAMS ((value arg1, value arg2, enum exp_opcode op));

extern value
value_add PARAMS ((value arg1, value arg2));

extern value
value_sub PARAMS ((value arg1, value arg2));

extern value
value_coerce_array PARAMS ((value arg1));

extern value
value_coerce_function PARAMS ((value arg1));

extern value
value_ind PARAMS ((value arg1));

extern value
value_addr PARAMS ((value arg1));

extern value
value_assign PARAMS ((value toval, value fromval));

extern value
value_neg PARAMS ((value arg1));

extern value
value_lognot PARAMS ((value arg1));

extern value
value_struct_elt PARAMS ((value *argp, value *args, char *name,
			  int *static_memfuncp, char *err));

extern value
value_struct_elt_for_reference PARAMS ((struct type *domain,
					int offset,
					struct type *curtype,
					char *name,
					struct type *intype));

extern value
value_field PARAMS ((value arg1, int fieldno));

extern value
value_primitive_field PARAMS ((value arg1, int offset, int fieldno,
			       struct type *arg_type));

extern value
value_cast PARAMS ((struct type *type, value arg2));

extern value
value_zero PARAMS ((struct type *type, enum lval_type lv));

extern value
value_repeat PARAMS ((value arg1, int count));

extern value
value_subscript PARAMS ((value array, value idx));

extern value
value_from_vtable_info PARAMS ((value arg, struct type *type));

extern value
value_being_returned PARAMS ((struct type *valtype, 
			      char retbuf[REGISTER_BYTES],
			      int struct_return));

extern int
using_struct_return PARAMS ((value function, CORE_ADDR funcaddr,
			     struct type *value_type, int gcc_p));

extern void
set_return_value PARAMS ((value val));

extern value
evaluate_expression PARAMS ((struct expression *exp));

extern value
evaluate_type PARAMS ((struct expression *exp));

extern value
parse_and_eval PARAMS ((char *exp));

extern value
parse_to_comma_and_eval PARAMS ((char **expp));

extern struct type *
parse_and_eval_type PARAMS ((char *p, int length));

extern CORE_ADDR
parse_and_eval_address PARAMS ((char *exp));

extern CORE_ADDR
parse_and_eval_address_1 PARAMS ((char **expptr));

extern value
access_value_history PARAMS ((int num));

extern value
value_of_internalvar PARAMS ((struct internalvar *var));

extern void
set_internalvar PARAMS ((struct internalvar *var, value val));

extern void
set_internalvar_component PARAMS ((struct internalvar *var, int offset,
				   int bitpos, int bitsize,
				   value newvalue));

extern struct internalvar *
lookup_internalvar PARAMS ((char *name));

extern int
value_equal PARAMS ((value arg1, value arg2));

extern int
value_less PARAMS ((value arg1, value arg2));

extern int
value_zerop PARAMS ((value arg1));

/* C++ */

extern value
value_of_this PARAMS ((int complain));

extern value
value_x_binop PARAMS ((value arg1, value arg2, enum exp_opcode op,
		       enum exp_opcode otherop));

extern value
value_x_unop PARAMS ((value arg1, enum exp_opcode op));

extern value
value_fn_field PARAMS ((value *arg1p, struct fn_field *f, int j,
			struct type* type, int offset));

extern value
value_virtual_fn_field PARAMS ((value *arg1p, struct fn_field *f, int j,
				struct type *type, int offset));

extern int
binop_user_defined_p PARAMS ((enum exp_opcode op, value arg1, value arg2));

extern int
unop_user_defined_p PARAMS ((enum exp_opcode op, value arg1));

extern int
typecmp PARAMS ((int staticp, struct type *t1[], value t2[]));

extern int
destructor_name_p PARAMS ((const char *name, const struct type *type));

#define value_free(val) free ((PTR)val)

extern void
free_all_values PARAMS ((void));

extern void
release_value PARAMS ((value val));

extern int
record_latest_value PARAMS ((value val));

extern void
registers_changed PARAMS ((void));

extern void
read_register_bytes PARAMS ((int regbyte, char *myaddr, int len));

extern void
write_register_bytes PARAMS ((int regbyte, char *myaddr, int len));

extern void
read_register_gen PARAMS ((int regno, char *myaddr));

extern CORE_ADDR
read_register PARAMS ((int regno));

extern void
write_register PARAMS ((int regno, int val));

extern void
supply_register PARAMS ((int regno, char *val));

/* FIXME:  Assumes equivalence of "struct frame_info *" and "FRAME" */
extern void
get_saved_register PARAMS ((char *raw_buffer, int *optimized,
			    CORE_ADDR *addrp, struct frame_info *frame,
			    int regnum, enum lval_type *lval));

extern void
modify_field PARAMS ((char *addr, int fieldval, int bitpos, int bitsize));

extern void
type_print PARAMS ((struct type *type, char *varstring, FILE *stream,
		    int show));

extern void
type_print_1 PARAMS ((struct type *type, char *varstring, FILE *stream,
		      int show, int level));

/* Possibilities for prettyprint parameters to routines which print
   things.  */
enum val_prettyprint {
  Val_no_prettyprint = 0,
  Val_prettyprint,
  /* Use the default setting which the user has specified.  */
  Val_pretty_default
  };

extern char *
baseclass_addr PARAMS ((struct type *type, int index, char *valaddr,
			value *valuep, int *errp));

extern void
print_floating PARAMS ((char *valaddr, struct type *type, FILE *stream));

extern int
value_print PARAMS ((value val, FILE *stream, int format,
		     enum val_prettyprint pretty));

extern int
val_print PARAMS ((struct type *type, char *valaddr, CORE_ADDR address,
		   FILE *stream, int format, int deref_ref,
		   int recurse, enum val_prettyprint pretty));

/* FIXME:  Assumes equivalence of "struct frame_info *" and "FRAME" */
extern void
print_variable_value PARAMS ((struct symbol *var, struct frame_info *frame,
			      FILE *stream));

extern value
value_arg_coerce PARAMS ((value));

extern int
check_field PARAMS ((value, const char *));

extern void
typedef_print PARAMS ((struct type *type, struct symbol *new, FILE *stream));

extern char *
internalvar_name PARAMS ((struct internalvar *var));

extern void
clear_value_history PARAMS ((void));

extern void
clear_internalvars PARAMS ((void));

/* From values.c */

extern value
value_copy PARAMS ((value));

/* From valops.c */

extern value
call_function_by_hand PARAMS ((value, int, value *));

#endif	/* !defined (VALUE_H) */
Commit	Line	Data
bd5635a1	1	/* Definitions for values of C expressions, for GDB.
e17960fb	2	Copyright 1986, 1987, 1989, 1992 Free Software Foundation, Inc.
bd5635a1 RP	3
	4	This file is part of GDB.
	5
e17960fb	6	This program is free software; you can redistribute it and/or modify
bd5635a1	7	it under the terms of the GNU General Public License as published by
e17960fb JG	8	the Free Software Foundation; either version 2 of the License, or
e17960fb JG	9	(at your option) any later version.
bd5635a1	10
e17960fb	11	This program is distributed in the hope that it will be useful,
bd5635a1 RP	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
e17960fb JG	17	along with this program; if not, write to the Free Software
e17960fb JG	18	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
bd5635a1 RP	19
	20	#if !defined (VALUE_H)
	21	#define VALUE_H 1
01be6913	22
bd5635a1 RP	23	/*
	24	* The structure which defines the type of a value. It should never
	25	* be possible for a program lval value to survive over a call to the inferior
	26	* (ie to be put into the history list or an internal variable).
	27	*/
	28	enum lval_type {
	29	/* Not an lval. */
	30	not_lval,
	31	/* In memory. Could be a saved register. */
	32	lval_memory,
	33	/* In a register. */
	34	lval_register,
	35	/* In a gdb internal variable. */
	36	lval_internalvar,
	37	/* Part of a gdb internal variable (structure field). */
	38	lval_internalvar_component,
	39	/* In a register series in a frame not the current one, which may have been
	40	partially saved or saved in different places (otherwise would be
	41	lval_register or lval_memory). */
e17960fb	42	lval_reg_frame_relative
bd5635a1 RP	43	};
	44
	45	struct value
	46	{
	47	/* Type of value; either not an lval, or one of the various
	48	different possible kinds of lval. */
	49	enum lval_type lval;
	50	/* Location of value (if lval). */
	51	union
	52	{
	53	/* Address in inferior or byte of registers structure. */
	54	CORE_ADDR address;
35fcebce	55	/* Pointer to internal variable. */
bd5635a1 RP	56	struct internalvar *internalvar;
	57	/* Number of register. Only used with
	58	lval_reg_frame_relative. */
	59	int regnum;
	60	} location;
	61	/* Describes offset of a value within lval a structure in bytes. */
	62	int offset;
	63	/* Only used for bitfields; number of bits contained in them. */
	64	int bitsize;
35fcebce PB	65	/* Only used for bitfields; position of start of field.
	66	For BITS_BIG_ENDIAN=0 targets, it is the position of the LSB.
	67	For BITS_BIG_ENDIAN=1 targets, it is the position of the MSB. */
bd5635a1 RP	68	int bitpos;
	69	/* Frame value is relative to. In practice, this address is only
	70	used if the value is stored in several registers in other than
	71	the current frame, and these registers have not all been saved
	72	at the same place in memory. This will be described in the
	73	lval enum above as "lval_reg_frame_relative". */
	74	CORE_ADDR frame_addr;
	75	/* Type of the value. */
	76	struct type *type;
	77	/* Values are stored in a chain, so that they can be deleted
	78	easily over calls to the inferior. Values assigned to internal
	79	variables or put into the value history are taken off this
	80	list. */
	81	struct value *next;
	82	/* If an lval is forced to repeat, a new value is created with
	83	these fields set. The new value is not an lval. */
	84	short repeated;
	85	short repetitions;
	86	/* Register number if the value is from a register. Is not kept
	87	if you take a field of a structure that is stored in a
	88	register. Shouldn't it be? */
	89	short regno;
	90	/* If zero, contents of this value are in the contents field.
	91	If nonzero, contents are in inferior memory at address
	92	in the location.address field plus the offset field
	93	(and the lval field should be lval_memory). */
	94	char lazy;
	95	/* If nonzero, this is the value of a variable which does not
	96	actually exist in the program. */
	97	char optimized_out;
	98	/* Actual contents of the value. For use of this value; setting
	99	it uses the stuff above. Not valid if lazy is nonzero.
	100	Target byte-order. We force it to be aligned properly for any
	101	possible value. */
	102	union {
	103	long contents[1];
	104	double force_double_align;
	105	#ifdef LONG_LONG
	106	long long force_longlong_align;
	107	#endif
	108	} aligner;
	109
	110	};
	111
	112	typedef struct value *value;
	113
	114	#define VALUE_TYPE(val) (val)->type
	115	#define VALUE_LAZY(val) (val)->lazy
	116	/* VALUE_CONTENTS and VALUE_CONTENTS_RAW both return the address of
	117	the gdb buffer used to hold a copy of the contents of the lval.
	118	VALUE_CONTENTS is used when the contents of the buffer are needed --
	119	it uses value_fetch_lazy() to load the buffer from the process being
	120	debugged if it hasn't already been loaded. VALUE_CONTENTS_RAW is
	121	used when data is being stored into the buffer, or when it is
	122	certain that the contents of the buffer are valid. */
	123	#define VALUE_CONTENTS_RAW(val) ((char *) (val)->aligner.contents)
	124	#define VALUE_CONTENTS(val) ((void)(VALUE_LAZY(val) && value_fetch_lazy(val)),\
	125	VALUE_CONTENTS_RAW(val))
01be6913 PB	126	extern int
	127	value_fetch_lazy PARAMS ((value val));
	128
bd5635a1 RP	129	#define VALUE_LVAL(val) (val)->lval
	130	#define VALUE_ADDRESS(val) (val)->location.address
	131	#define VALUE_INTERNALVAR(val) (val)->location.internalvar
	132	#define VALUE_FRAME_REGNUM(val) ((val)->location.regnum)
	133	#define VALUE_FRAME(val) ((val)->frame_addr)
	134	#define VALUE_OFFSET(val) (val)->offset
	135	#define VALUE_BITSIZE(val) (val)->bitsize
	136	#define VALUE_BITPOS(val) (val)->bitpos
	137	#define VALUE_NEXT(val) (val)->next
	138	#define VALUE_REPEATED(val) (val)->repeated
	139	#define VALUE_REPETITIONS(val) (val)->repetitions
	140	#define VALUE_REGNO(val) (val)->regno
	141	#define VALUE_OPTIMIZED_OUT(val) ((val)->optimized_out)
	142
	143	/* Convert a REF to the object referenced. */
	144
	145	#define COERCE_REF(arg) \
e17960fb	146	{ if (TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_REF) \
bd5635a1 RP	147	arg = value_at_lazy (TYPE_TARGET_TYPE (VALUE_TYPE (arg)), \
	148	unpack_long (VALUE_TYPE (arg), \
	149	VALUE_CONTENTS (arg)));}
	150
	151	/* If ARG is an array, convert it to a pointer.
	152	If ARG is an enum, convert it to an integer.
	153	If ARG is a function, convert it to a function pointer.
	154
	155	References are dereferenced. */
	156
	157	#define COERCE_ARRAY(arg) \
	158	{ COERCE_REF(arg); \
	159	if (VALUE_REPEATED (arg) \
	160	\|\| TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_ARRAY) \
	161	arg = value_coerce_array (arg); \
	162	if (TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_FUNC) \
	163	arg = value_coerce_function (arg); \
	164	if (TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_ENUM) \
	165	arg = value_cast (builtin_type_unsigned_int, arg); \
	166	}
	167
	168	/* If ARG is an enum, convert it to an integer. */
	169
	170	#define COERCE_ENUM(arg) \
e17960fb	171	{ if (TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_REF) \
bd5635a1 RP	172	arg = value_ind (arg); \
	173	if (TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_ENUM) \
	174	arg = value_cast (builtin_type_unsigned_int, arg); \
	175	}
	176
	177	/* Internal variables (variables for convenience of use of debugger)
	178	are recorded as a chain of these structures. */
	179
	180	struct internalvar
	181	{
	182	struct internalvar *next;
	183	char *name;
	184	value value;
	185	};
01be6913	186
35fcebce PB	187	/* Pointer to member function. Depends on compiler implementation. */
	188
	189	#define METHOD_PTR_IS_VIRTUAL(ADDR) ((ADDR) & 0x80000000)
	190	#define METHOD_PTR_FROM_VOFFSET(OFFSET) (0x80000000 + (OFFSET))
	191	#define METHOD_PTR_TO_VOFFSET(ADDR) (~0x80000000 & (ADDR))
	192
bd5635a1 RP	193	\f
bd5635a1 RP	194	#include "symtab.h"
01be6913 PB	195	#include "gdbtypes.h"
	196	#include "expression.h"
	197
e17960fb	198	#ifdef __STDC__
01be6913	199	struct frame_info;
e17960fb	200	#endif
01be6913 PB	201
	202	extern void
	203	print_address_demangle PARAMS ((CORE_ADDR, FILE *, int));
	204
	205	extern LONGEST
	206	value_as_long PARAMS ((value val));
	207
	208	extern double
	209	value_as_double PARAMS ((value val));
	210
	211	extern CORE_ADDR
	212	value_as_pointer PARAMS ((value val));
	213
	214	extern LONGEST
	215	unpack_long PARAMS ((struct type type, char valaddr));
	216
	217	extern double
	218	unpack_double PARAMS ((struct type type, char valaddr, int *invp));
	219
	220	extern CORE_ADDR
	221	unpack_pointer PARAMS ((struct type type, char valaddr));
	222
35fcebce	223	extern LONGEST
01be6913 PB	224	unpack_field_as_long PARAMS ((struct type type, char valaddr,
	225	int fieldno));
	226
	227	extern value
	228	value_from_longest PARAMS ((struct type *type, LONGEST num));
	229
	230	extern value
	231	value_from_double PARAMS ((struct type *type, double num));
	232
	233	extern value
	234	value_at PARAMS ((struct type *type, CORE_ADDR addr));
	235
	236	extern value
	237	value_at_lazy PARAMS ((struct type *type, CORE_ADDR addr));
	238
	239	/* FIXME: Assumes equivalence of "struct frame_info " and "FRAME" /
	240	extern value
	241	value_from_register PARAMS ((struct type *type, int regnum,
	242	struct frame_info * frame));
	243
	244	extern value
	245	value_of_variable PARAMS ((struct symbol *var));
	246
	247	extern value
	248	value_of_register PARAMS ((int regnum));
	249
	250	/* FIXME: Assumes equivalence of "struct frame_info " and "FRAME" /
	251	extern value
	252	read_var_value PARAMS ((struct symbol var, struct frame_info frame));
	253
	254	/* FIXME: Assumes equivalence of "struct frame_info " and "FRAME" /
	255	extern value
	256	locate_var_value PARAMS ((struct symbol var, struct frame_info frame));
	257
	258	extern value
	259	allocate_value PARAMS ((struct type *type));
	260
	261	extern value
	262	allocate_repeat_value PARAMS ((struct type *type, int count));
	263
	264	extern value
	265	value_mark PARAMS ((void));
	266
	267	extern void
	268	value_free_to_mark PARAMS ((value mark));
	269
	270	extern value
	271	value_string PARAMS ((char *ptr, int len));
	272
	273	extern value
	274	value_binop PARAMS ((value arg1, value arg2, enum exp_opcode op));
	275
	276	extern value
	277	value_add PARAMS ((value arg1, value arg2));
	278
	279	extern value
	280	value_sub PARAMS ((value arg1, value arg2));
	281
	282	extern value
	283	value_coerce_array PARAMS ((value arg1));
	284
	285	extern value
	286	value_coerce_function PARAMS ((value arg1));
	287
288	extern value
289	value_ind PARAMS ((value arg1));
290
291	extern value
292	value_addr PARAMS ((value arg1));
293
294	extern value
295	value_assign PARAMS ((value toval, value fromval));
296
297	extern value
298	value_neg PARAMS ((value arg1));
299
300	extern value
301	value_lognot PARAMS ((value arg1));
302
303	extern value
304	value_struct_elt PARAMS ((value argp, value args, char *name,
305	int static_memfuncp, char err));
306
307	extern value
308	value_struct_elt_for_reference PARAMS ((struct type *domain,
35fcebce	309	int offset,
01be6913 PB	310	struct type *curtype,
	311	char *name,
	312	struct type *intype));
	313
	314	extern value
	315	value_field PARAMS ((value arg1, int fieldno));
	316
	317	extern value
	318	value_primitive_field PARAMS ((value arg1, int offset, int fieldno,
	319	struct type *arg_type));
	320
	321	extern value
	322	value_cast PARAMS ((struct type *type, value arg2));
	323
	324	extern value
	325	value_zero PARAMS ((struct type *type, enum lval_type lv));
	326
	327	extern value
	328	value_repeat PARAMS ((value arg1, int count));
	329
	330	extern value
	331	value_subscript PARAMS ((value array, value idx));
	332
	333	extern value
	334	value_from_vtable_info PARAMS ((value arg, struct type *type));
	335
	336	extern value
	337	value_being_returned PARAMS ((struct type *valtype,
	338	char retbuf[REGISTER_BYTES],
	339	int struct_return));
	340
	341	extern int
	342	using_struct_return PARAMS ((value function, CORE_ADDR funcaddr,
	343	struct type *value_type, int gcc_p));
	344
	345	extern void
	346	set_return_value PARAMS ((value val));
	347
	348	extern value
	349	evaluate_expression PARAMS ((struct expression *exp));
	350
	351	extern value
	352	evaluate_type PARAMS ((struct expression *exp));
	353
	354	extern value
	355	parse_and_eval PARAMS ((char *exp));
	356
	357	extern value
	358	parse_to_comma_and_eval PARAMS ((char **expp));
	359
	360	extern struct type *
	361	parse_and_eval_type PARAMS ((char *p, int length));
	362
	363	extern CORE_ADDR
	364	parse_and_eval_address PARAMS ((char *exp));
	365
	366	extern CORE_ADDR
	367	parse_and_eval_address_1 PARAMS ((char **expptr));
	368
	369	extern value
	370	access_value_history PARAMS ((int num));
	371
	372	extern value
	373	value_of_internalvar PARAMS ((struct internalvar *var));
374
375	extern void
376	set_internalvar PARAMS ((struct internalvar *var, value val));
377
378	extern void
379	set_internalvar_component PARAMS ((struct internalvar *var, int offset,
380	int bitpos, int bitsize,
381	value newvalue));
382
383	extern struct internalvar *
384	lookup_internalvar PARAMS ((char *name));
385
386	extern int
387	value_equal PARAMS ((value arg1, value arg2));
388
389	extern int
390	value_less PARAMS ((value arg1, value arg2));
391
392	extern int
393	value_zerop PARAMS ((value arg1));
bd5635a1 RP	394
bd5635a1 RP	395	/* C++ */
01be6913 PB	396
	397	extern value
	398	value_of_this PARAMS ((int complain));
	399
	400	extern value
	401	value_x_binop PARAMS ((value arg1, value arg2, enum exp_opcode op,
	402	enum exp_opcode otherop));
	403
	404	extern value
	405	value_x_unop PARAMS ((value arg1, enum exp_opcode op));
	406
	407	extern value
35fcebce PB	408	value_fn_field PARAMS ((value arg1p, struct fn_field f, int j,
35fcebce PB	409	struct type* type, int offset));
01be6913 PB	410
01be6913 PB	411	extern value
35fcebce PB	412	value_virtual_fn_field PARAMS ((value arg1p, struct fn_field f, int j,
35fcebce PB	413	struct type *type, int offset));
01be6913 PB	414
	415	extern int
	416	binop_user_defined_p PARAMS ((enum exp_opcode op, value arg1, value arg2));
	417
	418	extern int
	419	unop_user_defined_p PARAMS ((enum exp_opcode op, value arg1));
	420
	421	extern int
	422	typecmp PARAMS ((int staticp, struct type *t1[], value t2[]));
	423
	424	extern int
	425	destructor_name_p PARAMS ((const char name, const struct type type));
bd5635a1	426
35fcebce	427	#define value_free(val) free ((PTR)val)
01be6913 PB	428
	429	extern void
	430	free_all_values PARAMS ((void));
	431
	432	extern void
	433	release_value PARAMS ((value val));
	434
	435	extern int
	436	record_latest_value PARAMS ((value val));
	437
	438	extern void
	439	registers_changed PARAMS ((void));
	440
	441	extern void
	442	read_register_bytes PARAMS ((int regbyte, char *myaddr, int len));
	443
	444	extern void
	445	write_register_bytes PARAMS ((int regbyte, char *myaddr, int len));
	446
	447	extern void
	448	read_register_gen PARAMS ((int regno, char *myaddr));
	449
	450	extern CORE_ADDR
	451	read_register PARAMS ((int regno));
	452
	453	extern void
	454	write_register PARAMS ((int regno, int val));
	455
	456	extern void
	457	supply_register PARAMS ((int regno, char *val));
	458
	459	/* FIXME: Assumes equivalence of "struct frame_info " and "FRAME" /
	460	extern void
	461	get_saved_register PARAMS ((char raw_buffer, int optimized,
	462	CORE_ADDR addrp, struct frame_info frame,
	463	int regnum, enum lval_type *lval));
	464
	465	extern void
	466	modify_field PARAMS ((char *addr, int fieldval, int bitpos, int bitsize));
	467
	468	extern void
	469	type_print PARAMS ((struct type type, char varstring, FILE *stream,
	470	int show));
	471
	472	extern void
	473	type_print_1 PARAMS ((struct type type, char varstring, FILE *stream,
	474	int show, int level));
bd5635a1 RP	475
	476	/* Possibilities for prettyprint parameters to routines which print
	477	things. */
	478	enum val_prettyprint {
	479	Val_no_prettyprint = 0,
	480	Val_prettyprint,
	481	/* Use the default setting which the user has specified. */
	482	Val_pretty_default
	483	};
	484
01be6913 PB	485	extern char *
	486	baseclass_addr PARAMS ((struct type type, int index, char valaddr,
	487	value valuep, int errp));
	488
	489	extern void
	490	print_floating PARAMS ((char valaddr, struct type type, FILE *stream));
	491
	492	extern int
	493	value_print PARAMS ((value val, FILE *stream, int format,
	494	enum val_prettyprint pretty));
	495
	496	extern int
	497	val_print PARAMS ((struct type type, char valaddr, CORE_ADDR address,
	498	FILE *stream, int format, int deref_ref,
	499	int recurse, enum val_prettyprint pretty));
	500
	501	/* FIXME: Assumes equivalence of "struct frame_info " and "FRAME" /
	502	extern void
	503	print_variable_value PARAMS ((struct symbol var, struct frame_info frame,
	504	FILE *stream));
	505
	506	extern value
	507	value_arg_coerce PARAMS ((value));
	508
	509	extern int
	510	check_field PARAMS ((value, const char *));
	511
	512	extern void
	513	typedef_print PARAMS ((struct type type, struct symbol new, FILE *stream));
	514
	515	extern char *
	516	internalvar_name PARAMS ((struct internalvar *var));
	517
	518	extern void
	519	clear_value_history PARAMS ((void));
	520
	521	extern void
	522	clear_internalvars PARAMS ((void));
	523
	524	/* From values.c */
	525
	526	extern value
	527	value_copy PARAMS ((value));
	528
	529	/* From valops.c */
bd5635a1	530
e17960fb	531	extern value
01be6913	532	call_function_by_hand PARAMS ((value, int, value *));
e17960fb	533
01be6913	534	#endif /* !defined (VALUE_H) */