/* Definitions for values of C expressions, for GDB.
- Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
- 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
- 2008, 2009, 2010 Free Software Foundation, Inc.
+ Copyright (C) 1986-2014 Free Software Foundation, Inc.
This file is part of GDB.
struct ui_file;
struct language_defn;
struct value_print_options;
+struct xmethod_worker;
+
+/* Values can be partially 'optimized out' and/or 'unavailable'.
+ These are distinct states and have different string representations
+ and related error strings.
+
+ 'unavailable' has a specific meaning in this context. It means the
+ value exists in the program (at the machine level), but GDB has no
+ means to get to it. Such a value is normally printed as
+ <unavailable>. Examples of how to end up with an unavailable value
+ would be:
+
+ - We're inspecting a traceframe, and the memory or registers the
+ debug information says the value lives on haven't been collected.
+
+ - We're inspecting a core dump, the memory or registers the debug
+ information says the value lives aren't present in the dump
+ (that is, we have a partial/trimmed core dump, or we don't fully
+ understand/handle the core dump's format).
+
+ - We're doing live debugging, but the debug API has no means to
+ get at where the value lives in the machine, like e.g., ptrace
+ not having access to some register or register set.
+
+ - Any other similar scenario.
+
+ OTOH, "optimized out" is about what the compiler decided to generate
+ (or not generate). A chunk of a value that was optimized out does
+ not actually exist in the program. There's no way to get at it
+ short of compiling the program differently.
+
+ A register that has not been saved in a frame is likewise considered
+ optimized out, except not-saved registers have a different string
+ representation and related error strings. E.g., we'll print them as
+ <not-saved> instead of <optimized out>, as in:
+
+ (gdb) p/x $rax
+ $1 = <not saved>
+ (gdb) info registers rax
+ rax <not saved>
+
+ If the debug info describes a variable as being in such a register,
+ we'll still print the variable as <optimized out>. IOW, <not saved>
+ is reserved for inspecting registers at the machine level.
+
+ When comparing value contents, optimized out chunks, unavailable
+ chunks, and valid contents data are all considered different. See
+ value_contents_eq for more info.
+*/
/* 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
/* Type of the value. */
-extern struct type *value_type (struct value *);
+extern struct type *value_type (const struct value *);
/* This is being used to change the type of an existing value, that
code should instead be creating a new value with the changed type
/* Only used for bitfields; number of bits contained in them. */
-extern int value_bitsize (struct value *);
+extern int value_bitsize (const struct value *);
extern void set_value_bitsize (struct value *, int bit);
/* Only used for bitfields; position of start of field. For
gdbarch_bits_big_endian=0 targets, it is the position of the LSB. For
gdbarch_bits_big_endian=1 targets, it is the position of the MSB. */
-extern int value_bitpos (struct value *);
+extern int value_bitpos (const struct value *);
extern void set_value_bitpos (struct value *, int bit);
/* Only used for bitfields; the containing value. This allows a
bitfields. */
struct value *value_parent (struct value *);
+extern void set_value_parent (struct value *value, struct value *parent);
/* Describes offset of a value within lval of a structure in bytes.
If lval == lval_memory, this is an offset to the address. If lval
within the registers structure. Note also the member
embedded_offset below. */
-extern int value_offset (struct value *);
+extern int value_offset (const struct value *);
extern void set_value_offset (struct value *, int offset);
/* The comment from "struct value" reads: ``Is it modifiable? Only
not_lval and be done with it? */
extern int deprecated_value_modifiable (struct value *value);
-extern void deprecated_set_value_modifiable (struct value *value,
- int modifiable);
/* If a value represents a C++ object, then the `type' field gives the
object's compile-time type. If the object actually belongs to some
normally. */
extern struct type *value_enclosing_type (struct value *);
-extern struct value *value_change_enclosing_type (struct value *val,
- struct type *new_type);
+extern void set_value_enclosing_type (struct value *val,
+ struct type *new_type);
+
+/* Returns value_type or value_enclosing_type depending on
+ value_print_options.objectprint.
+
+ If RESOLVE_SIMPLE_TYPES is 0 the enclosing type will be resolved
+ only for pointers and references, else it will be returned
+ for all the types (e.g. structures). This option is useful
+ to prevent retrieving enclosing type for the base classes fields.
+
+ REAL_TYPE_FOUND is used to inform whether the real type was found
+ (or just static type was used). The NULL may be passed if it is not
+ necessary. */
+
+extern struct type *value_actual_type (struct value *value,
+ int resolve_simple_types,
+ int *real_type_found);
+
extern int value_pointed_to_offset (struct value *value);
extern void set_value_pointed_to_offset (struct value *value, int val);
extern int value_embedded_offset (struct value *value);
{
/* Fill in VALUE's contents. This is used to "un-lazy" values. If
a problem arises in obtaining VALUE's bits, this function should
- call 'error'. */
+ call 'error'. If it is NULL value_fetch_lazy on "un-lazy"
+ non-optimized-out value is an internal error. */
void (*read) (struct value *v);
/* Handle an assignment TOVAL = FROMVAL by writing the value of
FROMVAL to TOVAL's location. The contents of TOVAL have not yet
been updated. If a problem arises in doing so, this function
- should call 'error'. */
+ should call 'error'. If it is NULL such TOVAL assignment is an error as
+ TOVAL is not considered as an lvalue. */
void (*write) (struct value *toval, struct value *fromval);
+ /* If non-NULL, this is used to implement pointer indirection for
+ this value. This method may return NULL, in which case value_ind
+ will fall back to ordinary indirection. */
+ struct value *(*indirect) (struct value *value);
+
+ /* If non-NULL, this is used to implement reference resolving for
+ this value. This method may return NULL, in which case coerce_ref
+ will fall back to ordinary references resolving. */
+ struct value *(*coerce_ref) (const struct value *value);
+
+ /* If non-NULL, this is used to determine whether the indicated bits
+ of VALUE are a synthetic pointer. */
+ int (*check_synthetic_pointer) (const struct value *value,
+ int offset, int length);
+
/* Return a duplicate of VALUE's closure, for use in a new value.
This may simply return the same closure, if VALUE's is
reference-counted or statically allocated.
This may be NULL, in which case VALUE's closure is re-used in the
new value. */
- void *(*copy_closure) (struct value *v);
+ void *(*copy_closure) (const struct value *v);
/* Drop VALUE's reference to its closure. Maybe this frees the
closure; maybe this decrements a reference count; maybe the
and closure CLOSURE. */
extern struct value *allocate_computed_value (struct type *type,
- struct lval_funcs *funcs,
- void *closure);
+ const struct lval_funcs *funcs,
+ void *closure);
+
+/* Helper function to check the validity of some bits of a value.
+
+ If TYPE represents some aggregate type (e.g., a structure), return 1.
+
+ Otherwise, any of the bytes starting at OFFSET and extending for
+ TYPE_LENGTH(TYPE) bytes are invalid, print a message to STREAM and
+ return 0. The checking is done using FUNCS.
+
+ Otherwise, return 1. */
+
+extern int valprint_check_validity (struct ui_file *stream, struct type *type,
+ int embedded_offset,
+ const struct value *val);
+
+extern struct value *allocate_optimized_out_value (struct type *type);
/* If VALUE is lval_computed, return its lval_funcs structure. */
-extern struct lval_funcs *value_computed_funcs (struct value *value);
+extern const struct lval_funcs *value_computed_funcs (const struct value *);
/* If VALUE is lval_computed, return its closure. The meaning of the
returned value depends on the functions VALUE uses. */
-extern void *value_computed_closure (struct value *value);
+extern void *value_computed_closure (const struct value *value);
/* If zero, contents of this value are in the contents field. If
nonzero, contents are in inferior. If the lval field is lval_memory,
extern int value_stack (struct value *);
extern void set_value_stack (struct value *value, int val);
+/* Throw an error complaining that the value has been optimized
+ out. */
+
+extern void error_value_optimized_out (void);
+
/* 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
extern gdb_byte *value_contents_all_raw (struct value *);
extern const gdb_byte *value_contents_all (struct value *);
+/* Like value_contents_all, but does not require that the returned
+ bits be valid. This should only be used in situations where you
+ plan to check the validity manually. */
+extern const gdb_byte *value_contents_for_printing (struct value *value);
+
+/* Like value_contents_for_printing, but accepts a constant value
+ pointer. Unlike value_contents_for_printing however, the pointed
+ value must _not_ be lazy. */
+extern const gdb_byte *
+ value_contents_for_printing_const (const struct value *value);
+
extern int value_fetch_lazy (struct value *val);
-extern int value_contents_equal (struct value *val1, struct value *val2);
/* If nonzero, this is the value of a variable which does not actually
- exist in the program. */
+ exist in the program, at least partially. If the value is lazy,
+ this may fetch it now. */
extern int value_optimized_out (struct value *value);
-extern void set_value_optimized_out (struct value *value, int val);
+
+/* Given a value, return true if any of the contents bits starting at
+ OFFSET and extending for LENGTH bits is optimized out, false
+ otherwise. */
+
+extern int value_bits_any_optimized_out (const struct value *value,
+ int bit_offset, int bit_length);
+
+/* Like value_optimized_out, but return true iff the whole value is
+ optimized out. */
+extern int value_entirely_optimized_out (struct value *value);
+
+/* Mark VALUE's content bytes starting at OFFSET and extending for
+ LENGTH bytes as optimized out. */
+
+extern void mark_value_bytes_optimized_out (struct value *value,
+ int offset, int length);
+
+/* Mark VALUE's content bits starting at OFFSET and extending for
+ LENGTH bits as optimized out. */
+
+extern void mark_value_bits_optimized_out (struct value *value,
+ int offset, int length);
/* Set or return field indicating whether a variable is initialized or
- not, based on debugging information supplied by the compiler.
+ not, based on debugging information supplied by the compiler.
1 = initialized; 0 = uninitialized. */
extern int value_initialized (struct value *);
extern void set_value_initialized (struct value *, int);
/* Set COMPONENT's location as appropriate for a component of WHOLE
--- regardless of what kind of lvalue WHOLE is. */
extern void set_value_component_location (struct value *component,
- struct value *whole);
+ const struct value *whole);
/* While the following fields are per- VALUE .CONTENT .PIECE (i.e., a
single value might have multiple LVALs), this hacked interface is
extern enum lval_type *deprecated_value_lval_hack (struct value *);
#define VALUE_LVAL(val) (*deprecated_value_lval_hack (val))
+/* Like VALUE_LVAL, except the parameter can be const. */
+extern enum lval_type value_lval_const (const struct value *value);
+
/* If lval == lval_memory, return the address in the inferior. If
lval == lval_register, return the byte offset into the registers
structure. Otherwise, return 0. The returned address
includes the offset, if any. */
-extern CORE_ADDR value_address (struct value *);
+extern CORE_ADDR value_address (const struct value *);
/* Like value_address, except the result does not include value's
offset. */
extern short *deprecated_value_regnum_hack (struct value *);
#define VALUE_REGNUM(val) (*deprecated_value_regnum_hack (val))
+/* Return value after lval_funcs->coerce_ref (after check_typedef). Return
+ NULL if lval_funcs->coerce_ref is not applicable for whatever reason. */
+
+extern struct value *coerce_ref_if_computed (const struct value *arg);
+
+/* Setup a new value type and enclosing value type for dereferenced value VALUE.
+ ENC_TYPE is the new enclosing type that should be set. ORIGINAL_TYPE and
+ ORIGINAL_VAL are the type and value of the original reference or pointer.
+
+ Note, that VALUE is modified by this function.
+
+ It is a common implementation for coerce_ref and value_ind. */
+
+extern struct value * readjust_indirect_value_type (struct value *value,
+ struct type *enc_type,
+ struct type *original_type,
+ struct value *original_val);
+
/* Convert a REF to the object referenced. */
extern struct value *coerce_ref (struct value *value);
extern struct value *coerce_array (struct value *value);
+/* Given a value, determine whether the bits starting at OFFSET and
+ extending for LENGTH bits are a synthetic pointer. */
+
+extern int value_bits_synthetic_pointer (const struct value *value,
+ int offset, int length);
+
+/* Given a value, determine whether the contents bytes starting at
+ OFFSET and extending for LENGTH bytes are available. This returns
+ nonzero if all bytes in the given range are available, zero if any
+ byte is unavailable. */
+
+extern int value_bytes_available (const struct value *value,
+ int offset, int length);
+
+/* Given a value, determine whether the contents bits starting at
+ OFFSET and extending for LENGTH bits are available. This returns
+ nonzero if all bits in the given range are available, zero if any
+ bit is unavailable. */
+
+extern int value_bits_available (const struct value *value,
+ int offset, int length);
+
+/* Like value_bytes_available, but return false if any byte in the
+ whole object is unavailable. */
+extern int value_entirely_available (struct value *value);
+
+/* Like value_entirely_available, but return false if any byte in the
+ whole object is available. */
+extern int value_entirely_unavailable (struct value *value);
+
+/* Mark VALUE's content bytes starting at OFFSET and extending for
+ LENGTH bytes as unavailable. */
+
+extern void mark_value_bytes_unavailable (struct value *value,
+ int offset, int length);
+
+/* Mark VALUE's content bits starting at OFFSET and extending for
+ LENGTH bits as unavailable. */
+
+extern void mark_value_bits_unavailable (struct value *value,
+ int offset, int length);
+
+/* Compare LENGTH bytes of VAL1's contents starting at OFFSET1 with
+ LENGTH bytes of VAL2's contents starting at OFFSET2.
+
+ Note that "contents" refers to the whole value's contents
+ (value_contents_all), without any embedded offset adjustment. For
+ example, to compare a complete object value with itself, including
+ its enclosing type chunk, you'd do:
+
+ int len = TYPE_LENGTH (check_typedef (value_enclosing_type (val)));
+ value_contents_eq (val, 0, val, 0, len);
+
+ Returns true iff the set of available/valid contents match.
+
+ Optimized-out contents are equal to optimized-out contents, and are
+ not equal to non-optimized-out contents.
+
+ Unavailable contente are equal to unavailable contents, and are not
+ equal to non-unavailable contents.
+
+ For example, if 'x's represent an unavailable byte, and 'V' and 'Z'
+ represent different available/valid bytes, in a value with length
+ 16:
+
+ offset: 0 4 8 12 16
+ contents: xxxxVVVVxxxxVVZZ
+
+ then:
+
+ value_contents_eq(val, 0, val, 8, 6) => 1
+ value_contents_eq(val, 0, val, 4, 4) => 0
+ value_contents_eq(val, 0, val, 8, 8) => 0
+ value_contents_eq(val, 4, val, 12, 2) => 1
+ value_contents_eq(val, 4, val, 12, 4) => 0
+ value_contents_eq(val, 3, val, 4, 4) => 0
+
+ If 'x's represent an unavailable byte, 'o' represents an optimized
+ out byte, in a value with length 8:
+
+ offset: 0 4 8
+ contents: xxxxoooo
+
+ then:
+
+ value_contents_eq(val, 0, val, 2, 2) => 1
+ value_contents_eq(val, 4, val, 6, 2) => 1
+ value_contents_eq(val, 0, val, 4, 4) => 0
+
+ We only know whether a value chunk is unavailable or optimized out
+ if we've tried to read it. As this routine is used by printing
+ routines, which may be printing values in the value history, long
+ after the inferior is gone, it works with const values. Therefore,
+ this routine must not be called with lazy values. */
+
+extern int value_contents_eq (const struct value *val1, int offset1,
+ const struct value *val2, int offset2,
+ int length);
+
+/* Read LENGTH bytes of memory starting at MEMADDR into BUFFER, which
+ is (or will be copied to) VAL's contents buffer offset by
+ EMBEDDED_OFFSET (that is, to &VAL->contents[EMBEDDED_OFFSET]).
+ Marks value contents ranges as unavailable if the corresponding
+ memory is likewise unavailable. STACK indicates whether the memory
+ is known to be stack memory. */
+
+extern void read_value_memory (struct value *val, int embedded_offset,
+ int stack, CORE_ADDR memaddr,
+ gdb_byte *buffer, size_t length);
+
+/* Cast SCALAR_VALUE to the element type of VECTOR_TYPE, then replicate
+ into each element of a new vector value with VECTOR_TYPE. */
+
+struct value *value_vector_widen (struct value *scalar_value,
+ struct type *vector_type);
+
\f
#include "symtab.h"
struct frame_info;
struct fn_field;
-extern void print_address_demangle (struct gdbarch *, CORE_ADDR,
- struct ui_file *, int);
+extern int print_address_demangle (const struct value_print_options *,
+ struct gdbarch *, CORE_ADDR,
+ struct ui_file *, int);
extern LONGEST value_as_long (struct value *val);
extern DOUBLEST value_as_double (struct value *val);
extern DOUBLEST unpack_double (struct type *type, const gdb_byte *valaddr,
int *invp);
extern CORE_ADDR unpack_pointer (struct type *type, const gdb_byte *valaddr);
-LONGEST unpack_bits_as_long (struct type *field_type, const gdb_byte *valaddr,
- int bitpos, int bitsize);
+
+extern int unpack_value_bits_as_long (struct type *field_type,
+ const gdb_byte *valaddr,
+ int embedded_offset, int bitpos,
+ int bitsize,
+ const struct value *original_value,
+ LONGEST *result);
+
extern LONGEST unpack_field_as_long (struct type *type,
const gdb_byte *valaddr,
int fieldno);
+extern int unpack_value_field_as_long (struct type *type, const gdb_byte *valaddr,
+ int embedded_offset, int fieldno,
+ const struct value *val, LONGEST *result);
+
+extern struct value *value_field_bitfield (struct type *type, int fieldno,
+ const gdb_byte *valaddr,
+ int embedded_offset,
+ const struct value *val);
extern void pack_long (gdb_byte *buf, struct type *type, LONGEST num);
extern struct value *value_from_longest (struct type *type, LONGEST num);
+extern struct value *value_from_ulongest (struct type *type, ULONGEST num);
extern struct value *value_from_pointer (struct type *type, CORE_ADDR addr);
extern struct value *value_from_double (struct type *type, DOUBLEST num);
extern struct value *value_from_decfloat (struct type *type,
const gdb_byte *decbytes);
+extern struct value *value_from_history_ref (const char *, const char **);
extern struct value *value_at (struct type *type, CORE_ADDR addr);
extern struct value *value_at_lazy (struct type *type, CORE_ADDR addr);
+extern struct value *value_from_contents_and_address_unresolved
+ (struct type *, const gdb_byte *, CORE_ADDR);
extern struct value *value_from_contents_and_address (struct type *,
const gdb_byte *,
CORE_ADDR);
+extern struct value *value_from_contents (struct type *, const gdb_byte *);
-extern struct value *default_value_from_register (struct type *type,
+extern struct value *default_value_from_register (struct gdbarch *gdbarch,
+ struct type *type,
int regnum,
- struct frame_info *frame);
+ struct frame_id frame_id);
+
+extern void read_frame_register_value (struct value *value,
+ struct frame_info *frame);
extern struct value *value_from_register (struct type *type, int regnum,
struct frame_info *frame);
-extern CORE_ADDR address_from_register (struct type *type, int regnum,
+extern CORE_ADDR address_from_register (int regnum,
struct frame_info *frame);
-extern struct value *value_of_variable (struct symbol *var, struct block *b);
+extern struct value *value_of_variable (struct symbol *var,
+ const struct block *b);
-extern struct value *address_of_variable (struct symbol *var, struct block *b);
+extern struct value *address_of_variable (struct symbol *var,
+ const struct block *b);
extern struct value *value_of_register (int regnum, struct frame_info *frame);
extern struct value *read_var_value (struct symbol *var,
struct frame_info *frame);
+extern struct value *default_read_var_value (struct symbol *var,
+ struct frame_info *frame);
+
extern struct value *allocate_value (struct type *type);
extern struct value *allocate_value_lazy (struct type *type);
-extern void allocate_value_contents (struct value *value);
+extern void value_contents_copy (struct value *dst, int dst_offset,
+ struct value *src, int src_offset,
+ int length);
+extern void value_contents_copy_raw (struct value *dst, int dst_offset,
+ struct value *src, int src_offset,
+ int length);
extern struct value *allocate_repeat_value (struct type *type, int count);
extern void value_free_to_mark (struct value *mark);
-extern struct value *value_cstring (char *ptr, int len,
+extern struct value *value_cstring (char *ptr, ssize_t len,
struct type *char_type);
-extern struct value *value_string (char *ptr, int len,
+extern struct value *value_string (char *ptr, ssize_t len,
struct type *char_type);
-extern struct value *value_bitstring (char *ptr, int len,
- struct type *index_type);
extern struct value *value_array (int lowbound, int highbound,
struct value **elemvec);
const char *name, int *static_memfuncp,
const char *err);
+extern struct value *value_struct_elt_bitpos (struct value **argp,
+ int bitpos,
+ struct type *field_type,
+ const char *err);
+
extern struct value *value_aggregate_elt (struct type *curtype,
- char *name,
+ const char *name,
struct type *expect_type,
int want_address,
enum noside noside);
extern struct value *value_static_field (struct type *type, int fieldno);
-extern struct fn_field *value_find_oload_method_list (struct value **,
- const char *,
- int, int *,
- struct type **, int *);
+enum oload_search_type { NON_METHOD, METHOD, BOTH };
-extern int find_overload_match (struct type **arg_types, int nargs,
- const char *name, int method, int lax,
+extern int find_overload_match (struct value **args, int nargs,
+ const char *name,
+ enum oload_search_type method,
struct value **objp, struct symbol *fsym,
struct value **valp, struct symbol **symp,
- int *staticp);
+ int *staticp, const int no_adl,
+ enum noside noside);
extern struct value *value_field (struct value *arg1, int fieldno);
struct type *arg_type);
-extern struct type *value_rtti_target_type (struct value *, int *, int *,
- int *);
+extern struct type *value_rtti_indirect_type (struct value *, int *, int *,
+ int *);
extern struct value *value_full_object (struct value *, struct type *, int,
int, int);
-extern struct value *value_cast_pointers (struct type *, struct value *);
+extern struct value *value_cast_pointers (struct type *, struct value *, int);
extern struct value *value_cast (struct type *type, struct value *arg2);
extern struct value *value_zero (struct type *type, enum lval_type lv);
-extern struct value *value_one (struct type *type, enum lval_type lv);
+extern struct value *value_one (struct type *type);
extern struct value *value_repeat (struct value *arg1, int count);
extern int value_bit_index (struct type *type, const gdb_byte *addr,
int index);
+extern enum return_value_convention
+struct_return_convention (struct gdbarch *gdbarch, struct value *function,
+ struct type *value_type);
+
extern int using_struct_return (struct gdbarch *gdbarch,
- struct type *func_type,
+ struct value *function,
struct type *value_type);
extern struct value *evaluate_expression (struct expression *exp);
extern struct value *evaluate_subexpression_type (struct expression *exp,
int subexp);
+extern void fetch_subexp_value (struct expression *exp, int *pc,
+ struct value **valp, struct value **resultp,
+ struct value **val_chain,
+ int preserve_errors);
+
extern char *extract_field_op (struct expression *exp, int *subexp);
extern struct value *evaluate_subexp_with_coercion (struct expression *,
int *, enum noside);
-extern struct value *parse_and_eval (char *exp);
+extern struct value *parse_and_eval (const char *exp);
-extern struct value *parse_to_comma_and_eval (char **expp);
+extern struct value *parse_to_comma_and_eval (const char **expp);
extern struct type *parse_and_eval_type (char *p, int length);
-extern CORE_ADDR parse_and_eval_address (char *exp);
-
-extern CORE_ADDR parse_and_eval_address_1 (char **expptr);
+extern CORE_ADDR parse_and_eval_address (const char *exp);
-extern LONGEST parse_and_eval_long (char *exp);
+extern LONGEST parse_and_eval_long (const char *exp);
extern void unop_promote (const struct language_defn *language,
struct gdbarch *gdbarch,
extern struct internalvar *create_internalvar (const char *name);
-typedef struct value * (*internalvar_make_value) (struct gdbarch *,
- struct internalvar *);
-extern struct internalvar *
- create_internalvar_type_lazy (char *name, internalvar_make_value fun);
+extern VEC (char_ptr) *complete_internalvar (const char *name);
+
+/* An internalvar can be dynamically computed by supplying a vector of
+ function pointers to perform various operations. */
+
+struct internalvar_funcs
+{
+ /* Compute the value of the variable. The DATA argument passed to
+ the function is the same argument that was passed to
+ `create_internalvar_type_lazy'. */
+
+ struct value *(*make_value) (struct gdbarch *arch,
+ struct internalvar *var,
+ void *data);
+
+ /* Update the agent expression EXPR with bytecode to compute the
+ value. VALUE is the agent value we are updating. The DATA
+ argument passed to this function is the same argument that was
+ passed to `create_internalvar_type_lazy'. If this pointer is
+ NULL, then the internalvar cannot be compiled to an agent
+ expression. */
+
+ void (*compile_to_ax) (struct internalvar *var,
+ struct agent_expr *expr,
+ struct axs_value *value,
+ void *data);
+
+ /* If non-NULL, this is called to destroy DATA. The DATA argument
+ passed to this function is the same argument that was passed to
+ `create_internalvar_type_lazy'. */
+
+ void (*destroy) (void *data);
+};
+
+extern struct internalvar *create_internalvar_type_lazy (const char *name,
+ const struct internalvar_funcs *funcs,
+ void *data);
+
+/* Compile an internal variable to an agent expression. VAR is the
+ variable to compile; EXPR and VALUE are the agent expression we are
+ updating. This will return 0 if there is no known way to compile
+ VAR, and 1 if VAR was successfully compiled. It may also throw an
+ exception on error. */
+
+extern int compile_internalvar_to_ax (struct internalvar *var,
+ struct agent_expr *expr,
+ struct axs_value *value);
extern struct internalvar *lookup_internalvar (const char *name);
/* C++ */
-extern struct value *value_of_this (int complain);
+extern struct value *value_of_this (const struct language_defn *lang);
+
+extern struct value *value_of_this_silent (const struct language_defn *lang);
extern struct value *value_x_binop (struct value *arg1, struct value *arg2,
enum exp_opcode op,
extern int unop_user_defined_p (enum exp_opcode op, struct value *arg1);
-extern int destructor_name_p (const char *name, const struct type *type);
+extern int destructor_name_p (const char *name, struct type *type);
extern void value_incref (struct value *val);
extern void free_all_values (void);
+extern void free_value_chain (struct value *v);
+
extern void release_value (struct value *val);
+extern void release_value_or_incref (struct value *val);
+
extern int record_latest_value (struct value *val);
extern void modify_field (struct type *type, gdb_byte *addr,
LONGEST fieldval, int bitpos, int bitsize);
-extern void type_print (struct type *type, char *varstring,
+extern void type_print (struct type *type, const char *varstring,
struct ui_file *stream, int show);
extern char *type_to_string (struct type *type);
extern void print_decimal_floating (const gdb_byte *valaddr, struct type *type,
struct ui_file *stream);
-extern int value_print (struct value *val, struct ui_file *stream,
- const struct value_print_options *options);
+extern void value_print (struct value *val, struct ui_file *stream,
+ const struct value_print_options *options);
extern void value_print_array_elements (struct value *val,
struct ui_file *stream, int format,
- enum val_prettyprint pretty);
+ enum val_prettyformat pretty);
extern struct value *value_release_to_mark (struct value *mark);
-extern int val_print (struct type *type, const gdb_byte *valaddr,
- int embedded_offset, CORE_ADDR address,
- struct ui_file *stream, int recurse,
- const struct value_print_options *options,
- const struct language_defn *language);
+extern void val_print (struct type *type, const gdb_byte *valaddr,
+ int embedded_offset, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ const struct value *val,
+ const struct value_print_options *options,
+ const struct language_defn *language);
-extern int common_val_print (struct value *val,
- struct ui_file *stream, int recurse,
- const struct value_print_options *options,
- const struct language_defn *language);
+extern void common_val_print (struct value *val,
+ struct ui_file *stream, int recurse,
+ const struct value_print_options *options,
+ const struct language_defn *language);
-extern int val_print_string (struct type *elttype, CORE_ADDR addr, int len,
+extern int val_print_string (struct type *elttype, const char *encoding,
+ CORE_ADDR addr, int len,
struct ui_file *stream,
const struct value_print_options *options);
struct ui_file *stream,
int indent);
-extern int check_field (struct type *, const char *);
-
extern void typedef_print (struct type *type, struct symbol *news,
struct ui_file *stream);
extern struct value *value_copy (struct value *);
+extern struct value *value_non_lval (struct value *);
+
extern void preserve_one_value (struct value *, struct objfile *, htab_t);
/* From valops.c */
extern struct value *value_allocate_space_in_inferior (int);
-extern struct value *value_of_local (const char *name, int complain);
-
extern struct value *value_subscripted_rvalue (struct value *array,
LONGEST index, int lowerbound);
char *value_internal_function_name (struct value *);
+extern struct value *value_of_xmethod (struct xmethod_worker *);
+
+struct value *call_xmethod (struct value *function,
+ int argc, struct value **argv);
+
#endif /* !defined (VALUE_H) */
projects / deliverable / binutils-gdb.git / blobdiff