[deliverable/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;
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));

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_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
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 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));

extern int
val_print_string PARAMS ((CORE_ADDR addr, 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;
	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;
c7da3ed3	200	struct fn_field;
e17960fb	201	#endif
01be6913 PB	202
	203	extern void
	204	print_address_demangle PARAMS ((CORE_ADDR, FILE *, int));
	205
	206	extern LONGEST
	207	value_as_long PARAMS ((value val));
	208
	209	extern double
	210	value_as_double PARAMS ((value val));
	211
	212	extern CORE_ADDR
	213	value_as_pointer PARAMS ((value val));
	214
	215	extern LONGEST
	216	unpack_long PARAMS ((struct type type, char valaddr));
	217
	218	extern double
	219	unpack_double PARAMS ((struct type type, char valaddr, int *invp));
	220
	221	extern CORE_ADDR
	222	unpack_pointer PARAMS ((struct type type, char valaddr));
	223
35fcebce	224	extern LONGEST
01be6913 PB	225	unpack_field_as_long PARAMS ((struct type type, char valaddr,
	226	int fieldno));
	227
	228	extern value
	229	value_from_longest PARAMS ((struct type *type, LONGEST num));
	230
	231	extern value
	232	value_from_double PARAMS ((struct type *type, double num));
	233
	234	extern value
	235	value_at PARAMS ((struct type *type, CORE_ADDR addr));
	236
	237	extern value
	238	value_at_lazy PARAMS ((struct type *type, CORE_ADDR addr));
	239
	240	/* FIXME: Assumes equivalence of "struct frame_info " and "FRAME" /
	241	extern value
	242	value_from_register PARAMS ((struct type *type, int regnum,
	243	struct frame_info * frame));
	244
	245	extern value
	246	value_of_variable PARAMS ((struct symbol *var));
	247
	248	extern value
	249	value_of_register PARAMS ((int regnum));
	250
	251	/* FIXME: Assumes equivalence of "struct frame_info " and "FRAME" /
	252	extern value
	253	read_var_value PARAMS ((struct symbol var, struct frame_info frame));
	254
	255	/* FIXME: Assumes equivalence of "struct frame_info " and "FRAME" /
	256	extern value
	257	locate_var_value PARAMS ((struct symbol var, struct frame_info frame));
	258
	259	extern value
	260	allocate_value PARAMS ((struct type *type));
	261
	262	extern value
	263	allocate_repeat_value PARAMS ((struct type *type, int count));
	264
	265	extern value
	266	value_mark PARAMS ((void));
	267
	268	extern void
	269	value_free_to_mark PARAMS ((value mark));
	270
	271	extern value
	272	value_string PARAMS ((char *ptr, int len));
	273
	274	extern value
	275	value_binop PARAMS ((value arg1, value arg2, enum exp_opcode op));
	276
	277	extern value
	278	value_add PARAMS ((value arg1, value arg2));
	279
	280	extern value
	281	value_sub PARAMS ((value arg1, value arg2));
	282
	283	extern value
	284	value_coerce_array PARAMS ((value arg1));
	285
	286	extern value
	287	value_coerce_function PARAMS ((value arg1));
	288
289	extern value
290	value_ind PARAMS ((value arg1));
291
292	extern value
293	value_addr PARAMS ((value arg1));
294
295	extern value
296	value_assign PARAMS ((value toval, value fromval));
297
298	extern value
299	value_neg PARAMS ((value arg1));
300
301	extern value
c7da3ed3	302	value_complement PARAMS ((value arg1));
01be6913 PB	303
	304	extern value
	305	value_struct_elt PARAMS ((value argp, value args, char *name,
	306	int static_memfuncp, char err));
	307
	308	extern value
	309	value_struct_elt_for_reference PARAMS ((struct type *domain,
35fcebce	310	int offset,
01be6913 PB	311	struct type *curtype,
	312	char *name,
	313	struct type *intype));
	314
	315	extern value
	316	value_field PARAMS ((value arg1, int fieldno));
	317
	318	extern value
	319	value_primitive_field PARAMS ((value arg1, int offset, int fieldno,
	320	struct type *arg_type));
	321
	322	extern value
	323	value_cast PARAMS ((struct type *type, value arg2));
	324
	325	extern value
	326	value_zero PARAMS ((struct type *type, enum lval_type lv));
	327
	328	extern value
	329	value_repeat PARAMS ((value arg1, int count));
	330
	331	extern value
	332	value_subscript PARAMS ((value array, value idx));
	333
	334	extern value
	335	value_from_vtable_info PARAMS ((value arg, struct type *type));
	336
	337	extern value
	338	value_being_returned PARAMS ((struct type *valtype,
	339	char retbuf[REGISTER_BYTES],
	340	int struct_return));
	341
	342	extern int
	343	using_struct_return PARAMS ((value function, CORE_ADDR funcaddr,
	344	struct type *value_type, int gcc_p));
	345
	346	extern void
	347	set_return_value PARAMS ((value val));
	348
	349	extern value
	350	evaluate_expression PARAMS ((struct expression *exp));
	351
	352	extern value
	353	evaluate_type PARAMS ((struct expression *exp));
	354
	355	extern value
	356	parse_and_eval PARAMS ((char *exp));
	357
	358	extern value
	359	parse_to_comma_and_eval PARAMS ((char **expp));
	360
	361	extern struct type *
	362	parse_and_eval_type PARAMS ((char *p, int length));
	363
	364	extern CORE_ADDR
	365	parse_and_eval_address PARAMS ((char *exp));
	366
	367	extern CORE_ADDR
	368	parse_and_eval_address_1 PARAMS ((char **expptr));
	369
	370	extern value
	371	access_value_history PARAMS ((int num));
	372
	373	extern value
	374	value_of_internalvar PARAMS ((struct internalvar *var));
375
376	extern void
377	set_internalvar PARAMS ((struct internalvar *var, value val));
378
379	extern void
380	set_internalvar_component PARAMS ((struct internalvar *var, int offset,
381	int bitpos, int bitsize,
382	value newvalue));
383
384	extern struct internalvar *
385	lookup_internalvar PARAMS ((char *name));
386
387	extern int
388	value_equal PARAMS ((value arg1, value arg2));
389
390	extern int
391	value_less PARAMS ((value arg1, value arg2));
392
393	extern int
c7da3ed3	394	value_logical_not PARAMS ((value arg1));
bd5635a1 RP	395
bd5635a1 RP	396	/* C++ */
01be6913 PB	397
	398	extern value
	399	value_of_this PARAMS ((int complain));
	400
	401	extern value
	402	value_x_binop PARAMS ((value arg1, value arg2, enum exp_opcode op,
	403	enum exp_opcode otherop));
	404
	405	extern value
	406	value_x_unop PARAMS ((value arg1, enum exp_opcode op));
	407
	408	extern value
35fcebce PB	409	value_fn_field PARAMS ((value arg1p, struct fn_field f, int j,
35fcebce PB	410	struct type* type, int offset));
01be6913 PB	411
01be6913 PB	412	extern value
35fcebce PB	413	value_virtual_fn_field PARAMS ((value arg1p, struct fn_field f, int j,
35fcebce PB	414	struct type *type, int offset));
01be6913 PB	415
	416	extern int
	417	binop_user_defined_p PARAMS ((enum exp_opcode op, value arg1, value arg2));
	418
	419	extern int
	420	unop_user_defined_p PARAMS ((enum exp_opcode op, value arg1));
	421
	422	extern int
	423	typecmp PARAMS ((int staticp, struct type *t1[], value t2[]));
	424
	425	extern int
	426	destructor_name_p PARAMS ((const char name, const struct type type));
bd5635a1	427
35fcebce	428	#define value_free(val) free ((PTR)val)
01be6913 PB	429
	430	extern void
	431	free_all_values PARAMS ((void));
	432
	433	extern void
	434	release_value PARAMS ((value val));
	435
	436	extern int
	437	record_latest_value PARAMS ((value val));
	438
	439	extern void
	440	registers_changed PARAMS ((void));
	441
	442	extern void
	443	read_register_bytes PARAMS ((int regbyte, char *myaddr, int len));
	444
	445	extern void
	446	write_register_bytes PARAMS ((int regbyte, char *myaddr, int len));
	447
	448	extern void
	449	read_register_gen PARAMS ((int regno, char *myaddr));
	450
	451	extern CORE_ADDR
	452	read_register PARAMS ((int regno));
	453
	454	extern void
	455	write_register PARAMS ((int regno, int val));
	456
	457	extern void
	458	supply_register PARAMS ((int regno, char *val));
	459
	460	/* FIXME: Assumes equivalence of "struct frame_info " and "FRAME" /
	461	extern void
	462	get_saved_register PARAMS ((char raw_buffer, int optimized,
	463	CORE_ADDR addrp, struct frame_info frame,
	464	int regnum, enum lval_type *lval));
	465
	466	extern void
	467	modify_field PARAMS ((char *addr, int fieldval, int bitpos, int bitsize));
	468
	469	extern void
	470	type_print PARAMS ((struct type type, char varstring, FILE *stream,
	471	int show));
	472
01be6913 PB	473	extern char *
	474	baseclass_addr PARAMS ((struct type type, int index, char valaddr,
	475	value valuep, int errp));
	476
	477	extern void
	478	print_floating PARAMS ((char valaddr, struct type type, FILE *stream));
	479
	480	extern int
	481	value_print PARAMS ((value val, FILE *stream, int format,
	482	enum val_prettyprint pretty));
	483
	484	extern int
	485	val_print PARAMS ((struct type type, char valaddr, CORE_ADDR address,
	486	FILE *stream, int format, int deref_ref,
	487	int recurse, enum val_prettyprint pretty));
	488
c7da3ed3 FF	489	extern int
	490	val_print_string PARAMS ((CORE_ADDR addr, FILE *stream));
	491
01be6913 PB	492	/* FIXME: Assumes equivalence of "struct frame_info " and "FRAME" /
	493	extern void
	494	print_variable_value PARAMS ((struct symbol var, struct frame_info frame,
	495	FILE *stream));
	496
	497	extern value
	498	value_arg_coerce PARAMS ((value));
	499
	500	extern int
	501	check_field PARAMS ((value, const char *));
	502
	503	extern void
c7da3ed3	504	c_typedef_print PARAMS ((struct type type, struct symbol new, FILE *stream));
01be6913 PB	505
	506	extern char *
	507	internalvar_name PARAMS ((struct internalvar *var));
	508
	509	extern void
	510	clear_value_history PARAMS ((void));
	511
	512	extern void
	513	clear_internalvars PARAMS ((void));
	514
	515	/* From values.c */
	516
	517	extern value
	518	value_copy PARAMS ((value));
	519
c7da3ed3 FF	520	extern int
	521	baseclass_offset PARAMS ((struct type *, int, value, int));
	522
01be6913	523	/* From valops.c */
bd5635a1	524
e17960fb	525	extern value
01be6913	526	call_function_by_hand PARAMS ((value, int, value *));
e17960fb	527
01be6913	528	#endif /* !defined (VALUE_H) */