diff options
Diffstat (limited to 'gdb/value.h')
| -rw-r--r-- | gdb/value.h | 124 |
1 files changed, 59 insertions, 65 deletions
diff --git a/gdb/value.h b/gdb/value.h index 6b0250c..4ecaeb7 100644 --- a/gdb/value.h +++ b/gdb/value.h @@ -262,7 +262,6 @@ public: void set_lazy (int val) { m_lazy = val; } - /* 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 class derived from `type', perhaps with other base classes and @@ -479,6 +478,60 @@ public: drops to 0, it will be freed. */ void decref (); + /* 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. */ + int bytes_available (LONGEST offset, ULONGEST length) const; + + /* 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. */ + int bits_available (LONGEST offset, ULONGEST length) const; + + /* Like bytes_available, but return false if any byte in the + whole object is unavailable. */ + int entirely_available (); + + /* Like entirely_available, but return false if any byte in the + whole object is available. */ + int entirely_unavailable () + { return entirely_covered_by_range_vector (m_unavailable); } + + /* Mark this value's content bytes starting at OFFSET and extending + for LENGTH bytes as unavailable. */ + void mark_bytes_unavailable (LONGEST offset, ULONGEST length); + + /* Mark this value's content bits starting at OFFSET and extending + for LENGTH bits as unavailable. */ + void mark_bits_unavailable (LONGEST offset, ULONGEST length); + + /* If nonzero, this is the value of a variable which does not actually + exist in the program, at least partially. If the value is lazy, + this may fetch it now. */ + int optimized_out (); + + /* Given a value, return true if any of the contents bits starting at + OFFSET and extending for LENGTH bits is optimized out, false + otherwise. */ + int bits_any_optimized_out (int bit_offset, int bit_length) const; + + /* Like optimized_out, but return true iff the whole value is + optimized out. */ + int entirely_optimized_out () + { + return entirely_covered_by_range_vector (m_optimized_out); + } + + /* Mark this value's content bytes starting at OFFSET and extending + for LENGTH bytes as optimized out. */ + void mark_bytes_optimized_out (int offset, int length); + + /* Mark this value's content bits starting at OFFSET and extending + for LENGTH bits as optimized out. */ + void mark_bits_optimized_out (LONGEST offset, LONGEST length); + /* Type of value; either not an lval, or one of the various different possible kinds of lval. */ @@ -697,6 +750,11 @@ private: void require_not_optimized_out () const; void require_available () const; + + /* Returns true if this value is entirely covered by RANGES. If the + value is lazy, it'll be read now. Note that RANGE is a pointer + to pointer because reading the value might change *RANGE. */ + int entirely_covered_by_range_vector (const std::vector<range> &ranges); }; inline void @@ -793,34 +851,6 @@ struct lval_funcs extern void error_value_optimized_out (void); -/* If nonzero, this is the value of a variable which does not actually - 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); - -/* 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, - LONGEST offset, LONGEST length); - /* 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, @@ -877,42 +907,6 @@ extern struct value *coerce_ref (struct value *value); extern struct value *coerce_array (struct value *value); -/* 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, - LONGEST offset, ULONGEST 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, - LONGEST offset, ULONGEST 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, - LONGEST offset, ULONGEST 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, - LONGEST offset, ULONGEST length); - /* Read LENGTH addressable memory units starting at MEMADDR into BUFFER, which is (or will be copied to) VAL's contents buffer offset by BIT_OFFSET bits. Marks value contents ranges as unavailable if |