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author | John Gilmore <gnu@cygnus> | 1990-09-05 17:54:31 +0000 |
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committer | John Gilmore <gnu@cygnus> | 1990-09-05 17:54:31 +0000 |
commit | 831c851165e112139af1265f294e198401814c1f (patch) | |
tree | 5f155fecb9b690be9c428e822d519c2710fefd47 /gdb/value.h | |
parent | 7a67dd45ca1c191a0220697a3ec9fa92993caf8c (diff) | |
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Initial revision
Diffstat (limited to 'gdb/value.h')
-rw-r--r-- | gdb/value.h | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/gdb/value.h b/gdb/value.h deleted file mode 100644 index 07dd8e8..0000000 --- a/gdb/value.h +++ /dev/null @@ -1,212 +0,0 @@ -/* Definitions for values of C expressions, for GDB. - Copyright (C) 1986, 1987, 1989 Free Software Foundation, Inc. - -This file is part of GDB. - -GDB 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 1, or (at your option) -any later version. - -GDB 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 GDB; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ - -/* - * 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 interrnal 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. */ - 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; - /* Actual contents of the value. For use of this value; setting - it uses the stuff above. */ - long contents[1]; - }; - -typedef struct value *value; - -#define VALUE_TYPE(val) (val)->type -#define VALUE_CONTENTS(val) ((char *) (val)->contents) -#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 - -/* If ARG is an array, convert it to a pointer. - If ARG is an enum, convert it to an integer. - - References are dereferenced. */ - -#define COERCE_ARRAY(arg) \ -{ if (TYPE_CODE ( VALUE_TYPE (arg)) == TYPE_CODE_REF) \ - arg = value_ind (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_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; -}; - -LONGEST value_as_long (); -double value_as_double (); -LONGEST unpack_long (); -double unpack_double (); -long unpack_field_as_long (); -value value_from_long (); -value value_from_double (); -value value_at (); -value value_from_register (); -value value_of_variable (); -value value_of_register (); -value read_var_value (); -value locate_var_value (); -value allocate_value (); -value allocate_repeat_value (); -value value_string (); - -value value_binop (); -value value_add (); -value value_sub (); -value value_coerce_array (); -value value_ind (); -value value_addr (); -value value_assign (); -value value_neg (); -value value_lognot (); -value value_struct_elt (), value_struct_elt_for_address (); -value value_field (); -value value_cast (); -value value_zero (); -value value_repeat (); -value value_subscript (); - -value call_function (); -value value_being_returned (); -int using_struct_return (); - -value evaluate_expression (); -value evaluate_type (); -value parse_and_eval (); -value parse_to_comma_and_eval (); - -value access_value_history (); -value value_of_internalvar (); -struct internalvar *lookup_internalvar (); - -int value_equal (); -int value_less (); -int value_zerop (); - -/* C++ */ -value value_of_this (); -value value_static_field (); -value value_x_binop (); -value value_x_unop (); -int binop_user_defined_p (); -int unop_user_defined_p (); - -void read_register_bytes (); -void modify_field (); -void type_print (); -void type_print_1 (); - -/* Possibilities for prettyprint parameters to routines which print - things. */ -enum val_prettyprint { - Val_no_prettyprint = 0, - Val_prettyprint, - /* Use the default setting which the user has specified. */ - Val_pretty_default - }; - |