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Annotation of 43BSDReno/contrib/emacs-18.55/gdb/value.h, revision 1.1

1.1     ! root        1: /* Definitions for values of C expressions, for GDB.
        !             2:    Copyright (C) 1986, 1987 Free Software Foundation, Inc.
        !             3: 
        !             4: GDB is distributed in the hope that it will be useful, but WITHOUT ANY
        !             5: WARRANTY.  No author or distributor accepts responsibility to anyone
        !             6: for the consequences of using it or for whether it serves any
        !             7: particular purpose or works at all, unless he says so in writing.
        !             8: Refer to the GDB General Public License for full details.
        !             9: 
        !            10: Everyone is granted permission to copy, modify and redistribute GDB,
        !            11: but only under the conditions described in the GDB General Public
        !            12: License.  A copy of this license is supposed to have been given to you
        !            13: along with GDB so you can know your rights and responsibilities.  It
        !            14: should be in a file named COPYING.  Among other things, the copyright
        !            15: notice and this notice must be preserved on all copies.
        !            16: 
        !            17: In other words, go ahead and share GDB, but don't try to stop
        !            18: anyone else from sharing it farther.  Help stamp out software hoarding!
        !            19: */
        !            20: 
        !            21: enum lval_type { not_lval, lval_memory, lval_register, lval_internalvar,
        !            22:                 lval_internalvar_component };
        !            23: 
        !            24: struct value
        !            25:   {
        !            26:     enum lval_type lval;
        !            27:     union
        !            28:       {
        !            29:        CORE_ADDR address;
        !            30:        struct internalvar *internalvar;
        !            31:       } location;
        !            32:     int offset;
        !            33:     int bitsize;
        !            34:     int bitpos;
        !            35:     struct type *type;
        !            36:     struct value *next;
        !            37:     short repeated;
        !            38:     short repetitions;
        !            39:     short regno;
        !            40:     long contents[1];
        !            41:   };
        !            42: 
        !            43: typedef struct value *value;
        !            44: 
        !            45: #define VALUE_TYPE(val) (val)->type
        !            46: #define VALUE_CONTENTS(val) ((char *) (val)->contents)
        !            47: #define VALUE_LVAL(val) (val)->lval
        !            48: #define VALUE_ADDRESS(val) (val)->location.address
        !            49: #define VALUE_INTERNALVAR(val) (val)->location.internalvar
        !            50: #define VALUE_OFFSET(val) (val)->offset
        !            51: #define VALUE_BITSIZE(val) (val)->bitsize
        !            52: #define VALUE_BITPOS(val) (val)->bitpos
        !            53: #define VALUE_NEXT(val) (val)->next
        !            54: #define VALUE_REPEATED(val) (val)->repeated
        !            55: #define VALUE_REPETITIONS(val) (val)->repetitions
        !            56: #define VALUE_REGNO(val) (val)->regno
        !            57: 
        !            58: /* If ARG is an array, convert it to a pointer.
        !            59:    If ARG is an enum, convert it to an integer.  */
        !            60: 
        !            61: #define COERCE_ARRAY(arg)    \
        !            62: { if (VALUE_REPEATED (arg)                                             \
        !            63:       || TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_ARRAY)              \
        !            64:     arg = value_coerce_array (arg);                                    \
        !            65:   if (TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_ENUM)                  \
        !            66:     arg = value_cast (builtin_type_unsigned_int, arg);                 \
        !            67: }
        !            68: 
        !            69: /* If ARG is an enum, convert it to an integer.  */
        !            70: 
        !            71: #define COERCE_ENUM(arg)    \
        !            72: { if (TYPE_CODE (VALUE_TYPE (arg)) == TYPE_CODE_ENUM)                  \
        !            73:     arg = value_cast (builtin_type_unsigned_int, arg);                 \
        !            74: }
        !            75: 
        !            76: /* Internal variables (variables for convenience of use of debugger)
        !            77:    are recorded as a chain of these structures.  */
        !            78: 
        !            79: struct internalvar
        !            80: {
        !            81:   struct internalvar *next;
        !            82:   char *name;
        !            83:   value value;
        !            84: };
        !            85: 
        !            86: long value_as_long ();
        !            87: double value_as_double ();
        !            88: long unpack_long ();
        !            89: double unpack_double ();
        !            90: long unpack_field_as_long ();
        !            91: value value_from_long ();
        !            92: value value_from_double ();
        !            93: value value_at ();
        !            94: value value_of_variable ();
        !            95: value value_of_register ();
        !            96: value read_var_value ();
        !            97: value locate_var_value ();
        !            98: value allocate_value ();
        !            99: value allocate_repeat_value ();
        !           100: value value_string ();
        !           101: 
        !           102: value value_binop ();
        !           103: value value_add ();
        !           104: value value_sub ();
        !           105: value value_coerce_array ();
        !           106: value value_ind ();
        !           107: value value_addr ();
        !           108: value value_assign ();
        !           109: value value_neg ();
        !           110: value value_lognot ();
        !           111: value value_struct_elt ();
        !           112: value value_field ();
        !           113: value value_cast ();
        !           114: value value_repeat ();
        !           115: value value_subscript ();
        !           116: 
        !           117: value call_function ();
        !           118: value value_being_returned ();
        !           119: 
        !           120: value evaluate_expression ();
        !           121: value evaluate_type ();
        !           122: value parse_and_eval ();
        !           123: value parse_to_comma_and_eval ();
        !           124: 
        !           125: value access_value_history ();
        !           126: value value_of_internalvar ();
        !           127: struct internalvar *lookup_internalvar ();
        !           128: 
        !           129: int value_equal ();
        !           130: int value_less ();
        !           131: int value_zerop ();

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