diff options
Diffstat (limited to 'gdb/value.h')
| -rw-r--r-- | gdb/value.h | 39 |
1 files changed, 32 insertions, 7 deletions
diff --git a/gdb/value.h b/gdb/value.h index 7f71dc4..c3dfb17 100644 --- a/gdb/value.h +++ b/gdb/value.h @@ -50,7 +50,7 @@ struct value *value_next (struct value *); /* 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 @@ -61,14 +61,14 @@ extern void deprecated_set_value_type (struct value *value, /* 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 @@ -83,7 +83,7 @@ struct value *value_parent (struct value *); 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 @@ -164,13 +164,21 @@ struct lval_funcs should call 'error'. */ void (*write) (struct value *toval, struct value *fromval); + /* Check the validity of some bits in VALUE. This should return 1 + if all the bits starting at OFFSET and extending for LENGTH bits + are valid, or 0 if any bit is invalid. */ + int (*check_validity) (const struct value *value, int offset, int length); + + /* Return 1 if any bit in VALUE is valid, 0 if they are all invalid. */ + int (*check_all_valid) (const struct value *value); + /* 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 @@ -195,7 +203,7 @@ extern struct lval_funcs *value_computed_funcs (struct value *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, @@ -249,6 +257,11 @@ extern gdb_byte *value_contents_writeable (struct value *); 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); + extern int value_fetch_lazy (struct value *val); extern int value_contents_equal (struct value *val1, struct value *val2); @@ -257,6 +270,10 @@ extern int value_contents_equal (struct value *val1, struct value *val2); extern int value_optimized_out (struct value *value); extern void set_value_optimized_out (struct value *value, int val); +/* Like value_optimized_out, but return false if any bit in the object + is valid. */ +extern int value_entirely_optimized_out (const struct value *value); + /* Set or return field indicating whether a variable is initialized or not, based on debugging information supplied by the compiler. 1 = initialized; 0 = uninitialized. */ @@ -266,7 +283,7 @@ 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 @@ -313,6 +330,13 @@ 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 valid. This returns nonzero if all + bits in the given range are valid, zero if any bit is invalid. */ + +extern int value_bits_valid (const struct value *value, + int offset, int length); + #include "symtab.h" @@ -647,6 +671,7 @@ 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 *val, const struct value_print_options *options, const struct language_defn *language); |