[binutils.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 CC_HAS_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)    \
{ COERCE_REF (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;
struct fn_field;
#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, struct block *b));

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_array PARAMS ((int lowbound, int highbound,
				  value *elemvec));

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

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_complement 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_logical_not 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
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, long 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, LONGEST fieldval, int bitpos, int bitsize));

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

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

extern void
print_longest PARAMS ((FILE *stream, int format, int use_local,
		       LONGEST value));

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));

extern int
val_print_string PARAMS ((CORE_ADDR addr, unsigned int len, FILE *stream));

/* 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
c_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));

extern int
baseclass_offset PARAMS ((struct type *, int, value, int));

/* 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;
7efb57c3	105	#ifdef CC_HAS_LONG_LONG
bd5635a1 RP	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) \
5573d7d4	171	{ COERCE_REF (arg); \
bd5635a1 RP	172	if (TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_ENUM) \
	173	arg = value_cast (builtin_type_unsigned_int, arg); \
	174	}
	175
	176	/* Internal variables (variables for convenience of use of debugger)
	177	are recorded as a chain of these structures. */
	178
	179	struct internalvar
	180	{
	181	struct internalvar *next;
	182	char *name;
	183	value value;
	184	};
01be6913	185
35fcebce PB	186	/* Pointer to member function. Depends on compiler implementation. */
	187
	188	#define METHOD_PTR_IS_VIRTUAL(ADDR) ((ADDR) & 0x80000000)
	189	#define METHOD_PTR_FROM_VOFFSET(OFFSET) (0x80000000 + (OFFSET))
	190	#define METHOD_PTR_TO_VOFFSET(ADDR) (~0x80000000 & (ADDR))
	191
bd5635a1 RP	192	\f
bd5635a1 RP	193	#include "symtab.h"
01be6913 PB	194	#include "gdbtypes.h"
	195	#include "expression.h"
	196
e17960fb	197	#ifdef __STDC__
01be6913	198	struct frame_info;
c7da3ed3	199	struct fn_field;
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
5573d7d4	220	extern CORE_ADDR unpack_pointer PARAMS ((struct type type, char valaddr));
01be6913	221
5573d7d4 JK	222	extern LONGEST unpack_field_as_long PARAMS ((struct type type, char valaddr,
5573d7d4 JK	223	int fieldno));
01be6913	224
5573d7d4	225	extern value value_from_longest PARAMS ((struct type *type, LONGEST num));
01be6913	226
5573d7d4	227	extern value value_from_double PARAMS ((struct type *type, double num));
01be6913	228
5573d7d4	229	extern value value_at PARAMS ((struct type *type, CORE_ADDR addr));
01be6913	230
5573d7d4	231	extern value value_at_lazy PARAMS ((struct type *type, CORE_ADDR addr));
01be6913 PB	232
01be6913 PB	233	/* FIXME: Assumes equivalence of "struct frame_info " and "FRAME" /
5573d7d4 JK	234	extern value value_from_register PARAMS ((struct type *type, int regnum,
5573d7d4 JK	235	struct frame_info * frame));
01be6913	236
5573d7d4	237	extern value value_of_variable PARAMS ((struct symbol var, struct block b));
01be6913	238
5573d7d4	239	extern value value_of_register PARAMS ((int regnum));
01be6913 PB	240
01be6913 PB	241	/* FIXME: Assumes equivalence of "struct frame_info " and "FRAME" /
5573d7d4 JK	242	extern value read_var_value PARAMS ((struct symbol *var,
5573d7d4 JK	243	struct frame_info *frame));
01be6913 PB	244
01be6913 PB	245	/* FIXME: Assumes equivalence of "struct frame_info " and "FRAME" /
5573d7d4 JK	246	extern value locate_var_value PARAMS ((struct symbol *var,
5573d7d4 JK	247	struct frame_info *frame));
01be6913	248
5573d7d4	249	extern value allocate_value PARAMS ((struct type *type));
01be6913	250
5573d7d4	251	extern value allocate_repeat_value PARAMS ((struct type *type, int count));
01be6913	252
5573d7d4	253	extern value value_mark PARAMS ((void));
01be6913	254
5573d7d4	255	extern void value_free_to_mark PARAMS ((value mark));
01be6913	256
5573d7d4	257	extern value value_string PARAMS ((char *ptr, int len));
01be6913	258
5573d7d4 JK	259	extern value value_array PARAMS ((int lowbound, int highbound,
5573d7d4 JK	260	value *elemvec));
7efb57c3	261
5573d7d4	262	extern value value_concat PARAMS ((value arg1, value arg2));
7efb57c3	263
5573d7d4	264	extern value value_binop PARAMS ((value arg1, value arg2, enum exp_opcode op));
01be6913	265
5573d7d4	266	extern value value_add PARAMS ((value arg1, value arg2));
01be6913	267
5573d7d4	268	extern value value_sub PARAMS ((value arg1, value arg2));
01be6913	269
5573d7d4	270	extern value value_coerce_array PARAMS ((value arg1));
01be6913	271
5573d7d4	272	extern value value_coerce_function PARAMS ((value arg1));
01be6913	273
5573d7d4	274	extern value value_ind PARAMS ((value arg1));
01be6913	275
5573d7d4	276	extern value value_addr PARAMS ((value arg1));
01be6913	277
5573d7d4	278	extern value value_assign PARAMS ((value toval, value fromval));
01be6913	279
5573d7d4	280	extern value value_neg PARAMS ((value arg1));
01be6913	281
5573d7d4	282	extern value value_complement PARAMS ((value arg1));
01be6913	283
5573d7d4 JK	284	extern value value_struct_elt PARAMS ((value argp, value args, char *name,
5573d7d4 JK	285	int static_memfuncp, char err));
01be6913	286
5573d7d4 JK	287	extern value value_struct_elt_for_reference PARAMS ((struct type *domain,
	288	int offset,
	289	struct type *curtype,
	290	char *name,
	291	struct type *intype));
01be6913	292
5573d7d4	293	extern value value_field PARAMS ((value arg1, int fieldno));
01be6913	294
5573d7d4 JK	295	extern value value_primitive_field PARAMS ((value arg1, int offset,
	296	int fieldno,
	297	struct type *arg_type));
01be6913	298
5573d7d4	299	extern value value_cast PARAMS ((struct type *type, value arg2));
01be6913	300
5573d7d4	301	extern value value_zero PARAMS ((struct type *type, enum lval_type lv));
01be6913	302
5573d7d4	303	extern value value_repeat PARAMS ((value arg1, int count));
01be6913	304
5573d7d4	305	extern value value_subscript PARAMS ((value array, value idx));
01be6913	306
5573d7d4	307	extern value value_from_vtable_info PARAMS ((value arg, struct type *type));
01be6913	308
5573d7d4 JK	309	extern value value_being_returned PARAMS ((struct type *valtype,
	310	char retbuf[REGISTER_BYTES],
	311	int struct_return));
01be6913 PB	312
	313	extern int
	314	using_struct_return PARAMS ((value function, CORE_ADDR funcaddr,
	315	struct type *value_type, int gcc_p));
	316
	317	extern void
	318	set_return_value PARAMS ((value val));
	319
	320	extern value
	321	evaluate_expression PARAMS ((struct expression *exp));
	322
	323	extern value
	324	evaluate_type PARAMS ((struct expression *exp));
	325
	326	extern value
	327	parse_and_eval PARAMS ((char *exp));
	328
	329	extern value
	330	parse_to_comma_and_eval PARAMS ((char **expp));
	331
	332	extern struct type *
	333	parse_and_eval_type PARAMS ((char *p, int length));
	334
	335	extern CORE_ADDR
	336	parse_and_eval_address PARAMS ((char *exp));
	337
	338	extern CORE_ADDR
	339	parse_and_eval_address_1 PARAMS ((char **expptr));
	340
	341	extern value
	342	access_value_history PARAMS ((int num));
	343
	344	extern value
	345	value_of_internalvar PARAMS ((struct internalvar *var));
	346
	347	extern void
	348	set_internalvar PARAMS ((struct internalvar *var, value val));
	349
	350	extern void
	351	set_internalvar_component PARAMS ((struct internalvar *var, int offset,
	352	int bitpos, int bitsize,
	353	value newvalue));
	354
	355	extern struct internalvar *
	356	lookup_internalvar PARAMS ((char *name));
	357
	358	extern int
	359	value_equal PARAMS ((value arg1, value arg2));
	360
	361	extern int
	362	value_less PARAMS ((value arg1, value arg2));
	363
	364	extern int
c7da3ed3	365	value_logical_not PARAMS ((value arg1));
bd5635a1 RP	366
bd5635a1 RP	367	/* C++ */
01be6913 PB	368
	369	extern value
	370	value_of_this PARAMS ((int complain));
	371
	372	extern value
	373	value_x_binop PARAMS ((value arg1, value arg2, enum exp_opcode op,
	374	enum exp_opcode otherop));
	375
	376	extern value
	377	value_x_unop PARAMS ((value arg1, enum exp_opcode op));
	378
	379	extern value
35fcebce PB	380	value_fn_field PARAMS ((value arg1p, struct fn_field f, int j,
35fcebce PB	381	struct type* type, int offset));
01be6913 PB	382
01be6913 PB	383	extern value
35fcebce PB	384	value_virtual_fn_field PARAMS ((value arg1p, struct fn_field f, int j,
35fcebce PB	385	struct type *type, int offset));
01be6913 PB	386
	387	extern int
	388	binop_user_defined_p PARAMS ((enum exp_opcode op, value arg1, value arg2));
	389
	390	extern int
	391	unop_user_defined_p PARAMS ((enum exp_opcode op, value arg1));
	392
01be6913 PB	393	extern int
01be6913 PB	394	destructor_name_p PARAMS ((const char name, const struct type type));
bd5635a1	395
35fcebce	396	#define value_free(val) free ((PTR)val)
01be6913 PB	397
	398	extern void
	399	free_all_values PARAMS ((void));
	400
	401	extern void
	402	release_value PARAMS ((value val));
	403
	404	extern int
	405	record_latest_value PARAMS ((value val));
	406
	407	extern void
	408	registers_changed PARAMS ((void));
	409
	410	extern void
	411	read_register_bytes PARAMS ((int regbyte, char *myaddr, int len));
	412
	413	extern void
	414	write_register_bytes PARAMS ((int regbyte, char *myaddr, int len));
	415
	416	extern void
	417	read_register_gen PARAMS ((int regno, char *myaddr));
	418
	419	extern CORE_ADDR
	420	read_register PARAMS ((int regno));
	421
	422	extern void
5573d7d4	423	write_register PARAMS ((int regno, long val));
01be6913 PB	424
	425	extern void
	426	supply_register PARAMS ((int regno, char *val));
	427
	428	/* FIXME: Assumes equivalence of "struct frame_info " and "FRAME" /
	429	extern void
	430	get_saved_register PARAMS ((char raw_buffer, int optimized,
	431	CORE_ADDR addrp, struct frame_info frame,
	432	int regnum, enum lval_type *lval));
	433
	434	extern void
5573d7d4	435	modify_field PARAMS ((char *addr, LONGEST fieldval, int bitpos, int bitsize));
01be6913 PB	436
	437	extern void
	438	type_print PARAMS ((struct type type, char varstring, FILE *stream,
	439	int show));
	440
01be6913 PB	441	extern char *
	442	baseclass_addr PARAMS ((struct type type, int index, char valaddr,
	443	value valuep, int errp));
	444
7efb57c3	445	extern void
5573d7d4	446	print_longest PARAMS ((FILE *stream, int format, int use_local,
7efb57c3 FF	447	LONGEST value));
7efb57c3 FF	448
01be6913 PB	449	extern void
	450	print_floating PARAMS ((char valaddr, struct type type, FILE *stream));
	451
	452	extern int
	453	value_print PARAMS ((value val, FILE *stream, int format,
	454	enum val_prettyprint pretty));
	455
	456	extern int
	457	val_print PARAMS ((struct type type, char valaddr, CORE_ADDR address,
	458	FILE *stream, int format, int deref_ref,
	459	int recurse, enum val_prettyprint pretty));
	460
c7da3ed3	461	extern int
7efb57c3	462	val_print_string PARAMS ((CORE_ADDR addr, unsigned int len, FILE *stream));
c7da3ed3	463
01be6913 PB	464	/* FIXME: Assumes equivalence of "struct frame_info " and "FRAME" /
	465	extern void
	466	print_variable_value PARAMS ((struct symbol var, struct frame_info frame,
	467	FILE *stream));
	468
	469	extern value
	470	value_arg_coerce PARAMS ((value));
	471
	472	extern int
	473	check_field PARAMS ((value, const char *));
	474
	475	extern void
c7da3ed3	476	c_typedef_print PARAMS ((struct type type, struct symbol new, FILE *stream));
01be6913 PB	477
	478	extern char *
	479	internalvar_name PARAMS ((struct internalvar *var));
	480
	481	extern void
	482	clear_value_history PARAMS ((void));
	483
	484	extern void
	485	clear_internalvars PARAMS ((void));
	486
	487	/* From values.c */
	488
	489	extern value
	490	value_copy PARAMS ((value));
	491
c7da3ed3 FF	492	extern int
	493	baseclass_offset PARAMS ((struct type *, int, value, int));
	494
01be6913	495	/* From valops.c */
bd5635a1	496
e17960fb	497	extern value
01be6913	498	call_function_by_hand PARAMS ((value, int, value *));
e17960fb	499
01be6913	500	#endif /* !defined (VALUE_H) */