X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fvalarith.c;h=9f91f4e0f0e8bbc1745d41b08325f6a4283b23c0;hb=be636754b785aa5b042991267c851af18ed5b6a9;hp=f88701faee8e784f50ac2bc28a8399238e4aba49;hpb=987504bb93b4da9529d309ee545de78bc082fab2;p=deliverable%2Fbinutils-gdb.git
diff --git a/gdb/valarith.c b/gdb/valarith.c
index f88701faee..9f91f4e0f0 100644
--- a/gdb/valarith.c
+++ b/gdb/valarith.c
@@ -1,14 +1,14 @@
/* Perform arithmetic and other operations on values, for GDB.
- Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
- 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
- Foundation, Inc.
+ Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
+ 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009,
+ 2010 Free Software Foundation, Inc.
This file is part of GDB.
This program 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 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
@@ -17,9 +17,7 @@
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see . */
#include "defs.h"
#include "value.h"
@@ -30,6 +28,7 @@
#include "language.h"
#include "gdb_string.h"
#include "doublest.h"
+#include "dfp.h"
#include
#include "infcall.h"
@@ -40,8 +39,6 @@
#define TRUNCATION_TOWARDS_ZERO ((-5 / 2) == -2)
#endif
-static struct value *value_subscripted_rvalue (struct value *, struct value *, int);
-
void _initialize_valarith (void);
@@ -49,7 +46,7 @@ void _initialize_valarith (void);
If the pointer type is void *, then return 1.
If the target type is incomplete, then error out.
This isn't a general purpose function, but just a
- helper for value_sub & value_add.
+ helper for value_ptradd.
*/
static LONGEST
@@ -58,6 +55,7 @@ find_size_for_pointer_math (struct type *ptr_type)
LONGEST sz = -1;
struct type *ptr_target;
+ gdb_assert (TYPE_CODE (ptr_type) == TYPE_CODE_PTR);
ptr_target = check_typedef (TYPE_TARGET_TYPE (ptr_type));
sz = TYPE_LENGTH (ptr_target);
@@ -73,119 +71,87 @@ find_size_for_pointer_math (struct type *ptr_type)
if (name == NULL)
name = TYPE_TAG_NAME (ptr_target);
if (name == NULL)
- error ("Cannot perform pointer math on incomplete types, "
- "try casting to a known type, or void *.");
+ error (_("Cannot perform pointer math on incomplete types, "
+ "try casting to a known type, or void *."));
else
- error ("Cannot perform pointer math on incomplete type \"%s\", "
- "try casting to a known type, or void *.", name);
+ error (_("Cannot perform pointer math on incomplete type \"%s\", "
+ "try casting to a known type, or void *."), name);
}
}
return sz;
}
+/* Given a pointer ARG1 and an integral value ARG2, return the
+ result of C-style pointer arithmetic ARG1 + ARG2. */
+
struct value *
-value_add (struct value *arg1, struct value *arg2)
+value_ptradd (struct value *arg1, LONGEST arg2)
{
- struct value *valint;
- struct value *valptr;
+ struct type *valptrtype;
LONGEST sz;
- struct type *type1, *type2, *valptrtype;
-
- COERCE_ARRAY (arg1);
- COERCE_ARRAY (arg2);
- type1 = check_typedef (VALUE_TYPE (arg1));
- type2 = check_typedef (VALUE_TYPE (arg2));
-
- if ((TYPE_CODE (type1) == TYPE_CODE_PTR
- || TYPE_CODE (type2) == TYPE_CODE_PTR)
- &&
- (is_integral_type (type1) || is_integral_type (type2)))
- /* Exactly one argument is a pointer, and one is an integer. */
- {
- struct value *retval;
- if (TYPE_CODE (type1) == TYPE_CODE_PTR)
- {
- valptr = arg1;
- valint = arg2;
- valptrtype = type1;
- }
- else
- {
- valptr = arg2;
- valint = arg1;
- valptrtype = type2;
- }
+ arg1 = coerce_array (arg1);
+ valptrtype = check_typedef (value_type (arg1));
+ sz = find_size_for_pointer_math (valptrtype);
- sz = find_size_for_pointer_math (valptrtype);
-
- retval = value_from_pointer (valptrtype,
- value_as_address (valptr)
- + (sz * value_as_long (valint)));
- VALUE_BFD_SECTION (retval) = VALUE_BFD_SECTION (valptr);
- return retval;
- }
-
- return value_binop (arg1, arg2, BINOP_ADD);
+ return value_from_pointer (valptrtype,
+ value_as_address (arg1) + sz * arg2);
}
-struct value *
-value_sub (struct value *arg1, struct value *arg2)
+/* Given two compatible pointer values ARG1 and ARG2, return the
+ result of C-style pointer arithmetic ARG1 - ARG2. */
+
+LONGEST
+value_ptrdiff (struct value *arg1, struct value *arg2)
{
struct type *type1, *type2;
- COERCE_ARRAY (arg1);
- COERCE_ARRAY (arg2);
- type1 = check_typedef (VALUE_TYPE (arg1));
- type2 = check_typedef (VALUE_TYPE (arg2));
+ LONGEST sz;
- if (TYPE_CODE (type1) == TYPE_CODE_PTR)
- {
- if (is_integral_type (type2))
- {
- /* pointer - integer. */
- LONGEST sz = find_size_for_pointer_math (type1);
+ arg1 = coerce_array (arg1);
+ arg2 = coerce_array (arg2);
+ type1 = check_typedef (value_type (arg1));
+ type2 = check_typedef (value_type (arg2));
- return value_from_pointer (type1,
- (value_as_address (arg1)
- - (sz * value_as_long (arg2))));
- }
- else if (TYPE_CODE (type2) == TYPE_CODE_PTR
- && TYPE_LENGTH (check_typedef (TYPE_TARGET_TYPE (type1)))
- == TYPE_LENGTH (check_typedef (TYPE_TARGET_TYPE (type2))))
- {
- /* pointer to - pointer to . */
- LONGEST sz = TYPE_LENGTH (check_typedef (TYPE_TARGET_TYPE (type1)));
- return value_from_longest
- (builtin_type_long, /* FIXME -- should be ptrdiff_t */
- (value_as_long (arg1) - value_as_long (arg2)) / sz);
- }
- else
- {
- error ("\
+ gdb_assert (TYPE_CODE (type1) == TYPE_CODE_PTR);
+ gdb_assert (TYPE_CODE (type2) == TYPE_CODE_PTR);
+
+ if (TYPE_LENGTH (check_typedef (TYPE_TARGET_TYPE (type1)))
+ != TYPE_LENGTH (check_typedef (TYPE_TARGET_TYPE (type2))))
+ error (_("\
First argument of `-' is a pointer and second argument is neither\n\
-an integer nor a pointer of the same type.");
- }
+an integer nor a pointer of the same type."));
+
+ sz = TYPE_LENGTH (check_typedef (TYPE_TARGET_TYPE (type1)));
+ if (sz == 0)
+ {
+ warning (_("Type size unknown, assuming 1. "
+ "Try casting to a known type, or void *."));
+ sz = 1;
}
- return value_binop (arg1, arg2, BINOP_SUB);
+ return (value_as_long (arg1) - value_as_long (arg2)) / sz;
}
/* Return the value of ARRAY[IDX].
+
+ ARRAY may be of type TYPE_CODE_ARRAY or TYPE_CODE_STRING. If the
+ current language supports C-style arrays, it may also be TYPE_CODE_PTR.
+ To access TYPE_CODE_BITSTRING values, use value_bitstring_subscript.
+
See comments in value_coerce_array() for rationale for reason for
doing lower bounds adjustment here rather than there.
FIXME: Perhaps we should validate that the index is valid and if
verbosity is set, warn about invalid indices (but still use them). */
struct value *
-value_subscript (struct value *array, struct value *idx)
+value_subscript (struct value *array, LONGEST index)
{
struct value *bound;
int c_style = current_language->c_style_arrays;
struct type *tarray;
- COERCE_REF (array);
- tarray = check_typedef (VALUE_TYPE (array));
- COERCE_VARYING_ARRAY (array, tarray);
+ array = coerce_ref (array);
+ tarray = check_typedef (value_type (array));
if (TYPE_CODE (tarray) == TYPE_CODE_ARRAY
|| TYPE_CODE (tarray) == TYPE_CODE_STRING)
@@ -195,115 +161,137 @@ value_subscript (struct value *array, struct value *idx)
get_discrete_bounds (range_type, &lowerbound, &upperbound);
if (VALUE_LVAL (array) != lval_memory)
- return value_subscripted_rvalue (array, idx, lowerbound);
+ return value_subscripted_rvalue (array, index, lowerbound);
if (c_style == 0)
{
- LONGEST index = value_as_long (idx);
if (index >= lowerbound && index <= upperbound)
- return value_subscripted_rvalue (array, idx, lowerbound);
+ return value_subscripted_rvalue (array, index, lowerbound);
/* Emit warning unless we have an array of unknown size.
An array of unknown size has lowerbound 0 and upperbound -1. */
if (upperbound > -1)
- warning ("array or string index out of range");
+ warning (_("array or string index out of range"));
/* fall doing C stuff */
c_style = 1;
}
- if (lowerbound != 0)
- {
- bound = value_from_longest (builtin_type_int, (LONGEST) lowerbound);
- idx = value_sub (idx, bound);
- }
-
- array = value_coerce_array (array);
- }
-
- if (TYPE_CODE (tarray) == TYPE_CODE_BITSTRING)
- {
- struct type *range_type = TYPE_INDEX_TYPE (tarray);
- LONGEST index = value_as_long (idx);
- struct value *v;
- int offset, byte, bit_index;
- LONGEST lowerbound, upperbound;
- get_discrete_bounds (range_type, &lowerbound, &upperbound);
- if (index < lowerbound || index > upperbound)
- error ("bitstring index out of range");
index -= lowerbound;
- offset = index / TARGET_CHAR_BIT;
- byte = *((char *) VALUE_CONTENTS (array) + offset);
- bit_index = index % TARGET_CHAR_BIT;
- byte >>= (BITS_BIG_ENDIAN ? TARGET_CHAR_BIT - 1 - bit_index : bit_index);
- v = value_from_longest (LA_BOOL_TYPE, byte & 1);
- VALUE_BITPOS (v) = bit_index;
- VALUE_BITSIZE (v) = 1;
- VALUE_LVAL (v) = VALUE_LVAL (array);
- if (VALUE_LVAL (array) == lval_internalvar)
- VALUE_LVAL (v) = lval_internalvar_component;
- VALUE_ADDRESS (v) = VALUE_ADDRESS (array);
- VALUE_OFFSET (v) = offset + VALUE_OFFSET (array);
- return v;
+ array = value_coerce_array (array);
}
if (c_style)
- return value_ind (value_add (array, idx));
+ return value_ind (value_ptradd (array, index));
else
- error ("not an array or string");
+ error (_("not an array or string"));
}
/* Return the value of EXPR[IDX], expr an aggregate rvalue
(eg, a vector register). This routine used to promote floats
to doubles, but no longer does. */
-static struct value *
-value_subscripted_rvalue (struct value *array, struct value *idx, int lowerbound)
+struct value *
+value_subscripted_rvalue (struct value *array, LONGEST index, int lowerbound)
{
- struct type *array_type = check_typedef (VALUE_TYPE (array));
+ struct type *array_type = check_typedef (value_type (array));
struct type *elt_type = check_typedef (TYPE_TARGET_TYPE (array_type));
unsigned int elt_size = TYPE_LENGTH (elt_type);
- LONGEST index = value_as_long (idx);
unsigned int elt_offs = elt_size * longest_to_int (index - lowerbound);
struct value *v;
if (index < lowerbound || elt_offs >= TYPE_LENGTH (array_type))
- error ("no such vector element");
+ error (_("no such vector element"));
v = allocate_value (elt_type);
- if (VALUE_LAZY (array))
- VALUE_LAZY (v) = 1;
+ if (VALUE_LVAL (array) == lval_memory && value_lazy (array))
+ set_value_lazy (v, 1);
else
- memcpy (VALUE_CONTENTS (v), VALUE_CONTENTS (array) + elt_offs, elt_size);
+ memcpy (value_contents_writeable (v),
+ value_contents (array) + elt_offs, elt_size);
+
+ set_value_component_location (v, array);
+ VALUE_REGNUM (v) = VALUE_REGNUM (array);
+ VALUE_FRAME_ID (v) = VALUE_FRAME_ID (array);
+ set_value_offset (v, value_offset (array) + elt_offs);
+ return v;
+}
+
+/* Return the value of BITSTRING[IDX] as (boolean) type TYPE. */
+
+struct value *
+value_bitstring_subscript (struct type *type,
+ struct value *bitstring, LONGEST index)
+{
+
+ struct type *bitstring_type, *range_type;
+ struct value *v;
+ int offset, byte, bit_index;
+ LONGEST lowerbound, upperbound;
+
+ bitstring_type = check_typedef (value_type (bitstring));
+ gdb_assert (TYPE_CODE (bitstring_type) == TYPE_CODE_BITSTRING);
+
+ range_type = TYPE_INDEX_TYPE (bitstring_type);
+ get_discrete_bounds (range_type, &lowerbound, &upperbound);
+ if (index < lowerbound || index > upperbound)
+ error (_("bitstring index out of range"));
+
+ index -= lowerbound;
+ offset = index / TARGET_CHAR_BIT;
+ byte = *((char *) value_contents (bitstring) + offset);
+
+ bit_index = index % TARGET_CHAR_BIT;
+ byte >>= (gdbarch_bits_big_endian (get_type_arch (bitstring_type)) ?
+ TARGET_CHAR_BIT - 1 - bit_index : bit_index);
+
+ v = value_from_longest (type, byte & 1);
+
+ set_value_bitpos (v, bit_index);
+ set_value_bitsize (v, 1);
+ set_value_component_location (v, bitstring);
+ VALUE_FRAME_ID (v) = VALUE_FRAME_ID (bitstring);
+
+ set_value_offset (v, offset + value_offset (bitstring));
- if (VALUE_LVAL (array) == lval_internalvar)
- VALUE_LVAL (v) = lval_internalvar_component;
- else
- VALUE_LVAL (v) = VALUE_LVAL (array);
- VALUE_ADDRESS (v) = VALUE_ADDRESS (array);
- VALUE_REGNO (v) = VALUE_REGNO (array);
- VALUE_OFFSET (v) = VALUE_OFFSET (array) + elt_offs;
return v;
}
+
-/* Check to see if either argument is a structure. This is called so
- we know whether to go ahead with the normal binop or look for a
- user defined function instead.
+/* Check to see if either argument is a structure, or a reference to
+ one. This is called so we know whether to go ahead with the normal
+ binop or look for a user defined function instead.
For now, we do not overload the `=' operator. */
int
-binop_user_defined_p (enum exp_opcode op, struct value *arg1, struct value *arg2)
+binop_types_user_defined_p (enum exp_opcode op,
+ struct type *type1, struct type *type2)
{
- struct type *type1, *type2;
if (op == BINOP_ASSIGN || op == BINOP_CONCAT)
return 0;
- type1 = check_typedef (VALUE_TYPE (arg1));
- type2 = check_typedef (VALUE_TYPE (arg2));
+
+ type1 = check_typedef (type1);
+ if (TYPE_CODE (type1) == TYPE_CODE_REF)
+ type1 = check_typedef (TYPE_TARGET_TYPE (type1));
+
+ type2 = check_typedef (type1);
+ if (TYPE_CODE (type2) == TYPE_CODE_REF)
+ type2 = check_typedef (TYPE_TARGET_TYPE (type2));
+
return (TYPE_CODE (type1) == TYPE_CODE_STRUCT
- || TYPE_CODE (type2) == TYPE_CODE_STRUCT
- || (TYPE_CODE (type1) == TYPE_CODE_REF
- && TYPE_CODE (TYPE_TARGET_TYPE (type1)) == TYPE_CODE_STRUCT)
- || (TYPE_CODE (type2) == TYPE_CODE_REF
- && TYPE_CODE (TYPE_TARGET_TYPE (type2)) == TYPE_CODE_STRUCT));
+ || TYPE_CODE (type2) == TYPE_CODE_STRUCT);
+}
+
+/* Check to see if either argument is a structure, or a reference to
+ one. This is called so we know whether to go ahead with the normal
+ binop or look for a user defined function instead.
+
+ For now, we do not overload the `=' operator. */
+
+int
+binop_user_defined_p (enum exp_opcode op,
+ struct value *arg1, struct value *arg2)
+{
+ return binop_types_user_defined_p (op, value_type (arg1), value_type (arg2));
}
/* Check to see if argument is a structure. This is called so
@@ -318,7 +306,7 @@ unop_user_defined_p (enum exp_opcode op, struct value *arg1)
struct type *type1;
if (op == UNOP_ADDR)
return 0;
- type1 = check_typedef (VALUE_TYPE (arg1));
+ type1 = check_typedef (value_type (arg1));
for (;;)
{
if (TYPE_CODE (type1) == TYPE_CODE_STRUCT)
@@ -348,16 +336,14 @@ value_x_binop (struct value *arg1, struct value *arg2, enum exp_opcode op,
char tstr[13];
int static_memfuncp;
- COERCE_REF (arg1);
- COERCE_REF (arg2);
- COERCE_ENUM (arg1);
- COERCE_ENUM (arg2);
+ arg1 = coerce_ref (arg1);
+ arg2 = coerce_ref (arg2);
/* now we know that what we have to do is construct our
arg vector and find the right function to call it with. */
- if (TYPE_CODE (check_typedef (VALUE_TYPE (arg1))) != TYPE_CODE_STRUCT)
- error ("Can't do that binary op on that type"); /* FIXME be explicit */
+ if (TYPE_CODE (check_typedef (value_type (arg1))) != TYPE_CODE_STRUCT)
+ error (_("Can't do that binary op on that type")); /* FIXME be explicit */
argvec = (struct value **) alloca (sizeof (struct value *) * 4);
argvec[1] = value_addr (arg1);
@@ -443,7 +429,7 @@ value_x_binop (struct value *arg1, struct value *arg2, enum exp_opcode op,
break;
case BINOP_MOD: /* invalid */
default:
- error ("Invalid binary operation specified.");
+ error (_("Invalid binary operation specified."));
}
break;
case BINOP_SUBSCRIPT:
@@ -469,7 +455,7 @@ value_x_binop (struct value *arg1, struct value *arg2, enum exp_opcode op,
break;
case BINOP_MOD: /* invalid */
default:
- error ("Invalid binary operation specified.");
+ error (_("Invalid binary operation specified."));
}
argvec[0] = value_struct_elt (&arg1, argvec + 1, tstr, &static_memfuncp, "structure");
@@ -485,12 +471,12 @@ value_x_binop (struct value *arg1, struct value *arg2, enum exp_opcode op,
{
struct type *return_type;
return_type
- = TYPE_TARGET_TYPE (check_typedef (VALUE_TYPE (argvec[0])));
+ = TYPE_TARGET_TYPE (check_typedef (value_type (argvec[0])));
return value_zero (return_type, VALUE_LVAL (arg1));
}
return call_function_by_hand (argvec[0], 2 - static_memfuncp, argvec + 1);
}
- error ("member function %s not found", tstr);
+ error (_("member function %s not found"), tstr);
#ifdef lint
return call_function_by_hand (argvec[0], 2 - static_memfuncp, argvec + 1);
#endif
@@ -505,19 +491,19 @@ value_x_binop (struct value *arg1, struct value *arg2, enum exp_opcode op,
struct value *
value_x_unop (struct value *arg1, enum exp_opcode op, enum noside noside)
{
+ struct gdbarch *gdbarch = get_type_arch (value_type (arg1));
struct value **argvec;
char *ptr, *mangle_ptr;
char tstr[13], mangle_tstr[13];
int static_memfuncp, nargs;
- COERCE_REF (arg1);
- COERCE_ENUM (arg1);
+ arg1 = coerce_ref (arg1);
/* now we know that what we have to do is construct our
arg vector and find the right function to call it with. */
- if (TYPE_CODE (check_typedef (VALUE_TYPE (arg1))) != TYPE_CODE_STRUCT)
- error ("Can't do that unary op on that type"); /* FIXME be explicit */
+ if (TYPE_CODE (check_typedef (value_type (arg1))) != TYPE_CODE_STRUCT)
+ error (_("Can't do that unary op on that type")); /* FIXME be explicit */
argvec = (struct value **) alloca (sizeof (struct value *) * 4);
argvec[1] = value_addr (arg1);
@@ -540,13 +526,13 @@ value_x_unop (struct value *arg1, enum exp_opcode op, enum noside noside)
break;
case UNOP_POSTINCREMENT:
strcpy (ptr, "++");
- argvec[2] = value_from_longest (builtin_type_int, 0);
+ argvec[2] = value_from_longest (builtin_type (gdbarch)->builtin_int, 0);
argvec[3] = 0;
nargs ++;
break;
case UNOP_POSTDECREMENT:
strcpy (ptr, "--");
- argvec[2] = value_from_longest (builtin_type_int, 0);
+ argvec[2] = value_from_longest (builtin_type (gdbarch)->builtin_int, 0);
argvec[3] = 0;
nargs ++;
break;
@@ -559,11 +545,14 @@ value_x_unop (struct value *arg1, enum exp_opcode op, enum noside noside)
case UNOP_NEG:
strcpy (ptr, "-");
break;
+ case UNOP_PLUS:
+ strcpy (ptr, "+");
+ break;
case UNOP_IND:
strcpy (ptr, "*");
break;
default:
- error ("Invalid unary operation specified.");
+ error (_("Invalid unary operation specified."));
}
argvec[0] = value_struct_elt (&arg1, argvec + 1, tstr, &static_memfuncp, "structure");
@@ -580,12 +569,12 @@ value_x_unop (struct value *arg1, enum exp_opcode op, enum noside noside)
{
struct type *return_type;
return_type
- = TYPE_TARGET_TYPE (check_typedef (VALUE_TYPE (argvec[0])));
+ = TYPE_TARGET_TYPE (check_typedef (value_type (argvec[0])));
return value_zero (return_type, VALUE_LVAL (arg1));
}
return call_function_by_hand (argvec[0], nargs, argvec + 1);
}
- error ("member function %s not found", tstr);
+ error (_("member function %s not found"), tstr);
return 0; /* For lint -- never reached */
}
@@ -621,11 +610,9 @@ value_concat (struct value *arg1, struct value *arg2)
int count, idx;
char *ptr;
char inchar;
- struct type *type1 = check_typedef (VALUE_TYPE (arg1));
- struct type *type2 = check_typedef (VALUE_TYPE (arg2));
-
- COERCE_VARYING_ARRAY (arg1, type1);
- COERCE_VARYING_ARRAY (arg2, type2);
+ struct type *type1 = check_typedef (value_type (arg1));
+ struct type *type2 = check_typedef (value_type (arg2));
+ struct type *char_type;
/* First figure out if we are dealing with two values to be concatenated
or a repeat count and a value to be repeated. INVAL1 is set to the
@@ -661,8 +648,9 @@ value_concat (struct value *arg1, struct value *arg2)
ptr = (char *) alloca (count * inval2len);
if (TYPE_CODE (type2) == TYPE_CODE_CHAR)
{
+ char_type = type2;
inchar = (char) unpack_long (type2,
- VALUE_CONTENTS (inval2));
+ value_contents (inval2));
for (idx = 0; idx < count; idx++)
{
*(ptr + idx) = inchar;
@@ -670,22 +658,23 @@ value_concat (struct value *arg1, struct value *arg2)
}
else
{
+ char_type = TYPE_TARGET_TYPE (type2);
for (idx = 0; idx < count; idx++)
{
- memcpy (ptr + (idx * inval2len), VALUE_CONTENTS (inval2),
+ memcpy (ptr + (idx * inval2len), value_contents (inval2),
inval2len);
}
}
- outval = value_string (ptr, count * inval2len);
+ outval = value_string (ptr, count * inval2len, char_type);
}
else if (TYPE_CODE (type2) == TYPE_CODE_BITSTRING
|| TYPE_CODE (type2) == TYPE_CODE_BOOL)
{
- error ("unimplemented support for bitstring/boolean repeats");
+ error (_("unimplemented support for bitstring/boolean repeats"));
}
else
{
- error ("can't repeat values of that type");
+ error (_("can't repeat values of that type"));
}
}
else if (TYPE_CODE (type1) == TYPE_CODE_STRING
@@ -695,29 +684,31 @@ value_concat (struct value *arg1, struct value *arg2)
if (TYPE_CODE (type2) != TYPE_CODE_STRING
&& TYPE_CODE (type2) != TYPE_CODE_CHAR)
{
- error ("Strings can only be concatenated with other strings.");
+ error (_("Strings can only be concatenated with other strings."));
}
inval1len = TYPE_LENGTH (type1);
inval2len = TYPE_LENGTH (type2);
ptr = (char *) alloca (inval1len + inval2len);
if (TYPE_CODE (type1) == TYPE_CODE_CHAR)
{
- *ptr = (char) unpack_long (type1, VALUE_CONTENTS (inval1));
+ char_type = type1;
+ *ptr = (char) unpack_long (type1, value_contents (inval1));
}
else
{
- memcpy (ptr, VALUE_CONTENTS (inval1), inval1len);
+ char_type = TYPE_TARGET_TYPE (type1);
+ memcpy (ptr, value_contents (inval1), inval1len);
}
if (TYPE_CODE (type2) == TYPE_CODE_CHAR)
{
*(ptr + inval1len) =
- (char) unpack_long (type2, VALUE_CONTENTS (inval2));
+ (char) unpack_long (type2, value_contents (inval2));
}
else
{
- memcpy (ptr + inval1len, VALUE_CONTENTS (inval2), inval2len);
+ memcpy (ptr + inval1len, value_contents (inval2), inval2len);
}
- outval = value_string (ptr, inval1len + inval2len);
+ outval = value_string (ptr, inval1len + inval2len, char_type);
}
else if (TYPE_CODE (type1) == TYPE_CODE_BITSTRING
|| TYPE_CODE (type1) == TYPE_CODE_BOOL)
@@ -726,45 +717,212 @@ value_concat (struct value *arg1, struct value *arg2)
if (TYPE_CODE (type2) != TYPE_CODE_BITSTRING
&& TYPE_CODE (type2) != TYPE_CODE_BOOL)
{
- error ("Bitstrings or booleans can only be concatenated with other bitstrings or booleans.");
+ error (_("Bitstrings or booleans can only be concatenated with other bitstrings or booleans."));
}
- error ("unimplemented support for bitstring/boolean concatenation.");
+ error (_("unimplemented support for bitstring/boolean concatenation."));
}
else
{
/* We don't know how to concatenate these operands. */
- error ("illegal operands for concatenation.");
+ error (_("illegal operands for concatenation."));
}
return (outval);
}
+/* Integer exponentiation: V1**V2, where both arguments are
+ integers. Requires V1 != 0 if V2 < 0. Returns 1 for 0 ** 0. */
+static LONGEST
+integer_pow (LONGEST v1, LONGEST v2)
+{
+ if (v2 < 0)
+ {
+ if (v1 == 0)
+ error (_("Attempt to raise 0 to negative power."));
+ else
+ return 0;
+ }
+ else
+ {
+ /* The Russian Peasant's Algorithm */
+ LONGEST v;
+
+ v = 1;
+ for (;;)
+ {
+ if (v2 & 1L)
+ v *= v1;
+ v2 >>= 1;
+ if (v2 == 0)
+ return v;
+ v1 *= v1;
+ }
+ }
+}
+/* Integer exponentiation: V1**V2, where both arguments are
+ integers. Requires V1 != 0 if V2 < 0. Returns 1 for 0 ** 0. */
+static ULONGEST
+uinteger_pow (ULONGEST v1, LONGEST v2)
+{
+ if (v2 < 0)
+ {
+ if (v1 == 0)
+ error (_("Attempt to raise 0 to negative power."));
+ else
+ return 0;
+ }
+ else
+ {
+ /* The Russian Peasant's Algorithm */
+ ULONGEST v;
+
+ v = 1;
+ for (;;)
+ {
+ if (v2 & 1L)
+ v *= v1;
+ v2 >>= 1;
+ if (v2 == 0)
+ return v;
+ v1 *= v1;
+ }
+ }
+}
+
+/* Obtain decimal value of arguments for binary operation, converting from
+ other types if one of them is not decimal floating point. */
+static void
+value_args_as_decimal (struct value *arg1, struct value *arg2,
+ gdb_byte *x, int *len_x, enum bfd_endian *byte_order_x,
+ gdb_byte *y, int *len_y, enum bfd_endian *byte_order_y)
+{
+ struct type *type1, *type2;
+
+ type1 = check_typedef (value_type (arg1));
+ type2 = check_typedef (value_type (arg2));
+
+ /* At least one of the arguments must be of decimal float type. */
+ gdb_assert (TYPE_CODE (type1) == TYPE_CODE_DECFLOAT
+ || TYPE_CODE (type2) == TYPE_CODE_DECFLOAT);
+
+ if (TYPE_CODE (type1) == TYPE_CODE_FLT
+ || TYPE_CODE (type2) == TYPE_CODE_FLT)
+ /* The DFP extension to the C language does not allow mixing of
+ * decimal float types with other float types in expressions
+ * (see WDTR 24732, page 12). */
+ error (_("Mixing decimal floating types with other floating types is not allowed."));
+
+ /* Obtain decimal value of arg1, converting from other types
+ if necessary. */
+
+ if (TYPE_CODE (type1) == TYPE_CODE_DECFLOAT)
+ {
+ *byte_order_x = gdbarch_byte_order (get_type_arch (type1));
+ *len_x = TYPE_LENGTH (type1);
+ memcpy (x, value_contents (arg1), *len_x);
+ }
+ else if (is_integral_type (type1))
+ {
+ *byte_order_x = gdbarch_byte_order (get_type_arch (type2));
+ *len_x = TYPE_LENGTH (type2);
+ decimal_from_integral (arg1, x, *len_x, *byte_order_x);
+ }
+ else
+ error (_("Don't know how to convert from %s to %s."), TYPE_NAME (type1),
+ TYPE_NAME (type2));
+
+ /* Obtain decimal value of arg2, converting from other types
+ if necessary. */
+
+ if (TYPE_CODE (type2) == TYPE_CODE_DECFLOAT)
+ {
+ *byte_order_y = gdbarch_byte_order (get_type_arch (type2));
+ *len_y = TYPE_LENGTH (type2);
+ memcpy (y, value_contents (arg2), *len_y);
+ }
+ else if (is_integral_type (type2))
+ {
+ *byte_order_y = gdbarch_byte_order (get_type_arch (type1));
+ *len_y = TYPE_LENGTH (type1);
+ decimal_from_integral (arg2, y, *len_y, *byte_order_y);
+ }
+ else
+ error (_("Don't know how to convert from %s to %s."), TYPE_NAME (type1),
+ TYPE_NAME (type2));
+}
/* Perform a binary operation on two operands which have reasonable
representations as integers or floats. This includes booleans,
characters, integers, or floats.
Does not support addition and subtraction on pointers;
- use value_add or value_sub if you want to handle those possibilities. */
+ use value_ptradd, value_ptrsub or value_ptrdiff for those operations. */
struct value *
value_binop (struct value *arg1, struct value *arg2, enum exp_opcode op)
{
struct value *val;
- struct type *type1, *type2;
+ struct type *type1, *type2, *result_type;
- COERCE_REF (arg1);
- COERCE_REF (arg2);
- type1 = check_typedef (VALUE_TYPE (arg1));
- type2 = check_typedef (VALUE_TYPE (arg2));
+ arg1 = coerce_ref (arg1);
+ arg2 = coerce_ref (arg2);
- if ((TYPE_CODE (type1) != TYPE_CODE_FLT && !is_integral_type (type1))
- ||
- (TYPE_CODE (type2) != TYPE_CODE_FLT && !is_integral_type (type2)))
- error ("Argument to arithmetic operation not a number or boolean.");
+ type1 = check_typedef (value_type (arg1));
+ type2 = check_typedef (value_type (arg2));
- if (TYPE_CODE (type1) == TYPE_CODE_FLT
- ||
- TYPE_CODE (type2) == TYPE_CODE_FLT)
+ if ((TYPE_CODE (type1) != TYPE_CODE_FLT
+ && TYPE_CODE (type1) != TYPE_CODE_DECFLOAT
+ && !is_integral_type (type1))
+ || (TYPE_CODE (type2) != TYPE_CODE_FLT
+ && TYPE_CODE (type2) != TYPE_CODE_DECFLOAT
+ && !is_integral_type (type2)))
+ error (_("Argument to arithmetic operation not a number or boolean."));
+
+ if (TYPE_CODE (type1) == TYPE_CODE_DECFLOAT
+ || TYPE_CODE (type2) == TYPE_CODE_DECFLOAT)
+ {
+ struct type *v_type;
+ int len_v1, len_v2, len_v;
+ enum bfd_endian byte_order_v1, byte_order_v2, byte_order_v;
+ gdb_byte v1[16], v2[16];
+ gdb_byte v[16];
+
+ /* If only one type is decimal float, use its type.
+ Otherwise use the bigger type. */
+ if (TYPE_CODE (type1) != TYPE_CODE_DECFLOAT)
+ result_type = type2;
+ else if (TYPE_CODE (type2) != TYPE_CODE_DECFLOAT)
+ result_type = type1;
+ else if (TYPE_LENGTH (type2) > TYPE_LENGTH (type1))
+ result_type = type2;
+ else
+ result_type = type1;
+
+ len_v = TYPE_LENGTH (result_type);
+ byte_order_v = gdbarch_byte_order (get_type_arch (result_type));
+
+ value_args_as_decimal (arg1, arg2, v1, &len_v1, &byte_order_v1,
+ v2, &len_v2, &byte_order_v2);
+
+ switch (op)
+ {
+ case BINOP_ADD:
+ case BINOP_SUB:
+ case BINOP_MUL:
+ case BINOP_DIV:
+ case BINOP_EXP:
+ decimal_binop (op, v1, len_v1, byte_order_v1,
+ v2, len_v2, byte_order_v2,
+ v, len_v, byte_order_v);
+ break;
+
+ default:
+ error (_("Operation not valid for decimal floating point number."));
+ }
+
+ val = value_from_decfloat (result_type, v);
+ }
+ else if (TYPE_CODE (type1) == TYPE_CODE_FLT
+ || TYPE_CODE (type2) == TYPE_CODE_FLT)
{
/* FIXME-if-picky-about-floating-accuracy: Should be doing this
in target format. real.c in GCC probably has the necessary
@@ -772,6 +930,7 @@ value_binop (struct value *arg1, struct value *arg2, enum exp_opcode op)
DOUBLEST v1, v2, v = 0;
v1 = value_as_double (arg1);
v2 = value_as_double (arg2);
+
switch (op)
{
case BINOP_ADD:
@@ -790,30 +949,41 @@ value_binop (struct value *arg1, struct value *arg2, enum exp_opcode op)
v = v1 / v2;
break;
- case BINOP_EXP:
- v = pow (v1, v2);
- if (errno)
- error ("Cannot perform exponentiation: %s", safe_strerror (errno));
- break;
+ case BINOP_EXP:
+ errno = 0;
+ v = pow (v1, v2);
+ if (errno)
+ error (_("Cannot perform exponentiation: %s"), safe_strerror (errno));
+ break;
+
+ case BINOP_MIN:
+ v = v1 < v2 ? v1 : v2;
+ break;
+
+ case BINOP_MAX:
+ v = v1 > v2 ? v1 : v2;
+ break;
default:
- error ("Integer-only operation on floating point number.");
+ error (_("Integer-only operation on floating point number."));
}
- /* If either arg was long double, make sure that value is also long
- double. */
-
- if (TYPE_LENGTH (type1) * 8 > TARGET_DOUBLE_BIT
- || TYPE_LENGTH (type2) * 8 > TARGET_DOUBLE_BIT)
- val = allocate_value (builtin_type_long_double);
+ /* If only one type is float, use its type.
+ Otherwise use the bigger type. */
+ if (TYPE_CODE (type1) != TYPE_CODE_FLT)
+ result_type = type2;
+ else if (TYPE_CODE (type2) != TYPE_CODE_FLT)
+ result_type = type1;
+ else if (TYPE_LENGTH (type2) > TYPE_LENGTH (type1))
+ result_type = type2;
else
- val = allocate_value (builtin_type_double);
+ result_type = type1;
- store_typed_floating (VALUE_CONTENTS_RAW (val), VALUE_TYPE (val), v);
+ val = allocate_value (result_type);
+ store_typed_floating (value_contents_raw (val), value_type (val), v);
}
else if (TYPE_CODE (type1) == TYPE_CODE_BOOL
- &&
- TYPE_CODE (type2) == TYPE_CODE_BOOL)
+ || TYPE_CODE (type2) == TYPE_CODE_BOOL)
{
LONGEST v1, v2, v = 0;
v1 = value_as_long (arg1);
@@ -842,73 +1012,45 @@ value_binop (struct value *arg1, struct value *arg2, enum exp_opcode op)
break;
default:
- error ("Invalid operation on booleans.");
+ error (_("Invalid operation on booleans."));
}
- val = allocate_value (type1);
- store_signed_integer (VALUE_CONTENTS_RAW (val),
- TYPE_LENGTH (type1),
+ result_type = type1;
+
+ val = allocate_value (result_type);
+ store_signed_integer (value_contents_raw (val),
+ TYPE_LENGTH (result_type),
+ gdbarch_byte_order (get_type_arch (result_type)),
v);
}
else
/* Integral operations here. */
- /* FIXME: Also mixed integral/booleans, with result an integer. */
- /* FIXME: This implements ANSI C rules (also correct for C++).
- What about FORTRAN and (the deleted) chill ? */
{
- unsigned int promoted_len1 = TYPE_LENGTH (type1);
- unsigned int promoted_len2 = TYPE_LENGTH (type2);
- int is_unsigned1 = TYPE_UNSIGNED (type1);
- int is_unsigned2 = TYPE_UNSIGNED (type2);
- unsigned int result_len;
- int unsigned_operation;
-
- /* Determine type length and signedness after promotion for
- both operands. */
- if (promoted_len1 < TYPE_LENGTH (builtin_type_int))
- {
- is_unsigned1 = 0;
- promoted_len1 = TYPE_LENGTH (builtin_type_int);
- }
- if (promoted_len2 < TYPE_LENGTH (builtin_type_int))
- {
- is_unsigned2 = 0;
- promoted_len2 = TYPE_LENGTH (builtin_type_int);
- }
-
/* Determine type length of the result, and if the operation should
- be done unsigned.
- Use the signedness of the operand with the greater length.
- If both operands are of equal length, use unsigned operation
- if one of the operands is unsigned. */
- if (promoted_len1 > promoted_len2)
- {
- unsigned_operation = is_unsigned1;
- result_len = promoted_len1;
- }
- else if (promoted_len2 > promoted_len1)
- {
- unsigned_operation = is_unsigned2;
- result_len = promoted_len2;
- }
+ be done unsigned. For exponentiation and shift operators,
+ use the length and type of the left operand. Otherwise,
+ use the signedness of the operand with the greater length.
+ If both operands are of equal length, use unsigned operation
+ if one of the operands is unsigned. */
+ if (op == BINOP_RSH || op == BINOP_LSH || op == BINOP_EXP)
+ result_type = type1;
+ else if (TYPE_LENGTH (type1) > TYPE_LENGTH (type2))
+ result_type = type1;
+ else if (TYPE_LENGTH (type2) > TYPE_LENGTH (type1))
+ result_type = type2;
+ else if (TYPE_UNSIGNED (type1))
+ result_type = type1;
+ else if (TYPE_UNSIGNED (type2))
+ result_type = type2;
else
- {
- unsigned_operation = is_unsigned1 || is_unsigned2;
- result_len = promoted_len1;
- }
+ result_type = type1;
- if (unsigned_operation)
+ if (TYPE_UNSIGNED (result_type))
{
+ LONGEST v2_signed = value_as_long (arg2);
ULONGEST v1, v2, v = 0;
v1 = (ULONGEST) value_as_long (arg1);
- v2 = (ULONGEST) value_as_long (arg2);
-
- /* Truncate values to the type length of the result. */
- if (result_len < sizeof (ULONGEST))
- {
- v1 &= ((LONGEST) 1 << HOST_CHAR_BIT * result_len) - 1;
- v2 &= ((LONGEST) 1 << HOST_CHAR_BIT * result_len) - 1;
- }
+ v2 = (ULONGEST) v2_signed;
switch (op)
{
@@ -925,17 +1067,22 @@ value_binop (struct value *arg1, struct value *arg2, enum exp_opcode op)
break;
case BINOP_DIV:
- v = v1 / v2;
+ case BINOP_INTDIV:
+ if (v2 != 0)
+ v = v1 / v2;
+ else
+ error (_("Division by zero"));
break;
- case BINOP_EXP:
- v = pow (v1, v2);
- if (errno)
- error ("Cannot perform exponentiation: %s", safe_strerror (errno));
- break;
+ case BINOP_EXP:
+ v = uinteger_pow (v1, v2_signed);
+ break;
case BINOP_REM:
- v = v1 % v2;
+ if (v2 != 0)
+ v = v1 % v2;
+ else
+ error (_("Division by zero"));
break;
case BINOP_MOD:
@@ -1001,25 +1148,27 @@ value_binop (struct value *arg1, struct value *arg2, enum exp_opcode op)
v = v1 < v2;
break;
+ case BINOP_GTR:
+ v = v1 > v2;
+ break;
+
+ case BINOP_LEQ:
+ v = v1 <= v2;
+ break;
+
+ case BINOP_GEQ:
+ v = v1 >= v2;
+ break;
+
default:
- error ("Invalid binary operation on numbers.");
+ error (_("Invalid binary operation on numbers."));
}
- /* This is a kludge to get around the fact that we don't
- know how to determine the result type from the types of
- the operands. (I'm not really sure how much we feel the
- need to duplicate the exact rules of the current
- language. They can get really hairy. But not to do so
- makes it hard to document just what we *do* do). */
-
- /* Can't just call init_type because we wouldn't know what
- name to give the type. */
- val = allocate_value
- (result_len > TARGET_LONG_BIT / HOST_CHAR_BIT
- ? builtin_type_unsigned_long_long
- : builtin_type_unsigned_long);
- store_unsigned_integer (VALUE_CONTENTS_RAW (val),
- TYPE_LENGTH (VALUE_TYPE (val)),
+ val = allocate_value (result_type);
+ store_unsigned_integer (value_contents_raw (val),
+ TYPE_LENGTH (value_type (val)),
+ gdbarch_byte_order
+ (get_type_arch (result_type)),
v);
}
else
@@ -1043,23 +1192,22 @@ value_binop (struct value *arg1, struct value *arg2, enum exp_opcode op)
break;
case BINOP_DIV:
+ case BINOP_INTDIV:
if (v2 != 0)
v = v1 / v2;
else
- error ("Division by zero");
+ error (_("Division by zero"));
break;
- case BINOP_EXP:
- v = pow (v1, v2);
- if (errno)
- error ("Cannot perform exponentiation: %s", safe_strerror (errno));
+ case BINOP_EXP:
+ v = integer_pow (v1, v2);
break;
case BINOP_REM:
if (v2 != 0)
v = v1 % v2;
else
- error ("Division by zero");
+ error (_("Division by zero"));
break;
case BINOP_MOD:
@@ -1121,29 +1269,35 @@ value_binop (struct value *arg1, struct value *arg2, enum exp_opcode op)
v = v1 == v2;
break;
+ case BINOP_NOTEQUAL:
+ v = v1 != v2;
+ break;
+
case BINOP_LESS:
v = v1 < v2;
break;
+ case BINOP_GTR:
+ v = v1 > v2;
+ break;
+
+ case BINOP_LEQ:
+ v = v1 <= v2;
+ break;
+
+ case BINOP_GEQ:
+ v = v1 >= v2;
+ break;
+
default:
- error ("Invalid binary operation on numbers.");
+ error (_("Invalid binary operation on numbers."));
}
- /* This is a kludge to get around the fact that we don't
- know how to determine the result type from the types of
- the operands. (I'm not really sure how much we feel the
- need to duplicate the exact rules of the current
- language. They can get really hairy. But not to do so
- makes it hard to document just what we *do* do). */
-
- /* Can't just call init_type because we wouldn't know what
- name to give the type. */
- val = allocate_value
- (result_len > TARGET_LONG_BIT / HOST_CHAR_BIT
- ? builtin_type_long_long
- : builtin_type_long);
- store_signed_integer (VALUE_CONTENTS_RAW (val),
- TYPE_LENGTH (VALUE_TYPE (val)),
+ val = allocate_value (result_type);
+ store_signed_integer (value_contents_raw (val),
+ TYPE_LENGTH (value_type (val)),
+ gdbarch_byte_order
+ (get_type_arch (result_type)),
v);
}
}
@@ -1157,17 +1311,20 @@ int
value_logical_not (struct value *arg1)
{
int len;
- char *p;
+ const gdb_byte *p;
struct type *type1;
- COERCE_NUMBER (arg1);
- type1 = check_typedef (VALUE_TYPE (arg1));
+ arg1 = coerce_array (arg1);
+ type1 = check_typedef (value_type (arg1));
if (TYPE_CODE (type1) == TYPE_CODE_FLT)
return 0 == value_as_double (arg1);
+ else if (TYPE_CODE (type1) == TYPE_CODE_DECFLOAT)
+ return decimal_is_zero (value_contents (arg1), TYPE_LENGTH (type1),
+ gdbarch_byte_order (get_type_arch (type1)));
len = TYPE_LENGTH (type1);
- p = VALUE_CONTENTS (arg1);
+ p = value_contents (arg1);
while (--len >= 0)
{
@@ -1184,10 +1341,10 @@ value_logical_not (struct value *arg1)
static int
value_strcmp (struct value *arg1, struct value *arg2)
{
- int len1 = TYPE_LENGTH (VALUE_TYPE (arg1));
- int len2 = TYPE_LENGTH (VALUE_TYPE (arg2));
- char *s1 = VALUE_CONTENTS (arg1);
- char *s2 = VALUE_CONTENTS (arg2);
+ int len1 = TYPE_LENGTH (value_type (arg1));
+ int len2 = TYPE_LENGTH (value_type (arg2));
+ const gdb_byte *s1 = value_contents (arg1);
+ const gdb_byte *s2 = value_contents (arg2);
int i, len = len1 < len2 ? len1 : len2;
for (i = 0; i < len; i++)
@@ -1215,17 +1372,18 @@ int
value_equal (struct value *arg1, struct value *arg2)
{
int len;
- char *p1, *p2;
+ const gdb_byte *p1;
+ const gdb_byte *p2;
struct type *type1, *type2;
enum type_code code1;
enum type_code code2;
int is_int1, is_int2;
- COERCE_ARRAY (arg1);
- COERCE_ARRAY (arg2);
+ arg1 = coerce_array (arg1);
+ arg2 = coerce_array (arg2);
- type1 = check_typedef (VALUE_TYPE (arg1));
- type2 = check_typedef (VALUE_TYPE (arg2));
+ type1 = check_typedef (value_type (arg1));
+ type2 = check_typedef (value_type (arg2));
code1 = TYPE_CODE (type1);
code2 = TYPE_CODE (type2);
is_int1 = is_integral_type (type1);
@@ -1236,7 +1394,25 @@ value_equal (struct value *arg1, struct value *arg2)
BINOP_EQUAL)));
else if ((code1 == TYPE_CODE_FLT || is_int1)
&& (code2 == TYPE_CODE_FLT || is_int2))
- return value_as_double (arg1) == value_as_double (arg2);
+ {
+ /* NOTE: kettenis/20050816: Avoid compiler bug on systems where
+ `long double' values are returned in static storage (m68k). */
+ DOUBLEST d = value_as_double (arg1);
+ return d == value_as_double (arg2);
+ }
+ else if ((code1 == TYPE_CODE_DECFLOAT || is_int1)
+ && (code2 == TYPE_CODE_DECFLOAT || is_int2))
+ {
+ gdb_byte v1[16], v2[16];
+ int len_v1, len_v2;
+ enum bfd_endian byte_order_v1, byte_order_v2;
+
+ value_args_as_decimal (arg1, arg2, v1, &len_v1, &byte_order_v1,
+ v2, &len_v2, &byte_order_v2);
+
+ return decimal_compare (v1, len_v1, byte_order_v1,
+ v2, len_v2, byte_order_v2) == 0;
+ }
/* FIXME: Need to promote to either CORE_ADDR or LONGEST, whichever
is bigger. */
@@ -1249,8 +1425,8 @@ value_equal (struct value *arg1, struct value *arg2)
&& ((len = (int) TYPE_LENGTH (type1))
== (int) TYPE_LENGTH (type2)))
{
- p1 = VALUE_CONTENTS (arg1);
- p2 = VALUE_CONTENTS (arg2);
+ p1 = value_contents (arg1);
+ p2 = value_contents (arg2);
while (--len >= 0)
{
if (*p1++ != *p2++)
@@ -1264,11 +1440,29 @@ value_equal (struct value *arg1, struct value *arg2)
}
else
{
- error ("Invalid type combination in equality test.");
+ error (_("Invalid type combination in equality test."));
return 0; /* For lint -- never reached */
}
}
+/* Compare values based on their raw contents. Useful for arrays since
+ value_equal coerces them to pointers, thus comparing just the address
+ of the array instead of its contents. */
+
+int
+value_equal_contents (struct value *arg1, struct value *arg2)
+{
+ struct type *type1, *type2;
+
+ type1 = check_typedef (value_type (arg1));
+ type2 = check_typedef (value_type (arg2));
+
+ return (TYPE_CODE (type1) == TYPE_CODE (type2)
+ && TYPE_LENGTH (type1) == TYPE_LENGTH (type2)
+ && memcmp (value_contents (arg1), value_contents (arg2),
+ TYPE_LENGTH (type1)) == 0);
+}
+
/* Simulate the C operator < by returning 1
iff ARG1's contents are less than ARG2's. */
@@ -1280,11 +1474,11 @@ value_less (struct value *arg1, struct value *arg2)
struct type *type1, *type2;
int is_int1, is_int2;
- COERCE_ARRAY (arg1);
- COERCE_ARRAY (arg2);
+ arg1 = coerce_array (arg1);
+ arg2 = coerce_array (arg2);
- type1 = check_typedef (VALUE_TYPE (arg1));
- type2 = check_typedef (VALUE_TYPE (arg2));
+ type1 = check_typedef (value_type (arg1));
+ type2 = check_typedef (value_type (arg2));
code1 = TYPE_CODE (type1);
code2 = TYPE_CODE (type2);
is_int1 = is_integral_type (type1);
@@ -1295,7 +1489,25 @@ value_less (struct value *arg1, struct value *arg2)
BINOP_LESS)));
else if ((code1 == TYPE_CODE_FLT || is_int1)
&& (code2 == TYPE_CODE_FLT || is_int2))
- return value_as_double (arg1) < value_as_double (arg2);
+ {
+ /* NOTE: kettenis/20050816: Avoid compiler bug on systems where
+ `long double' values are returned in static storage (m68k). */
+ DOUBLEST d = value_as_double (arg1);
+ return d < value_as_double (arg2);
+ }
+ else if ((code1 == TYPE_CODE_DECFLOAT || is_int1)
+ && (code2 == TYPE_CODE_DECFLOAT || is_int2))
+ {
+ gdb_byte v1[16], v2[16];
+ int len_v1, len_v2;
+ enum bfd_endian byte_order_v1, byte_order_v2;
+
+ value_args_as_decimal (arg1, arg2, v1, &len_v1, &byte_order_v1,
+ v2, &len_v2, &byte_order_v2);
+
+ return decimal_compare (v1, len_v1, byte_order_v1,
+ v2, len_v2, byte_order_v2) == -1;
+ }
else if (code1 == TYPE_CODE_PTR && code2 == TYPE_CODE_PTR)
return value_as_address (arg1) < value_as_address (arg2);
@@ -1309,37 +1521,69 @@ value_less (struct value *arg1, struct value *arg2)
return value_strcmp (arg1, arg2) < 0;
else
{
- error ("Invalid type combination in ordering comparison.");
+ error (_("Invalid type combination in ordering comparison."));
return 0;
}
}
-/* The unary operators - and ~. Both free the argument ARG1. */
+/* The unary operators +, - and ~. They free the argument ARG1. */
struct value *
-value_neg (struct value *arg1)
+value_pos (struct value *arg1)
{
struct type *type;
- struct type *result_type = VALUE_TYPE (arg1);
-
- COERCE_REF (arg1);
- type = check_typedef (VALUE_TYPE (arg1));
+ arg1 = coerce_ref (arg1);
+ type = check_typedef (value_type (arg1));
if (TYPE_CODE (type) == TYPE_CODE_FLT)
- return value_from_double (result_type, -value_as_double (arg1));
+ return value_from_double (type, value_as_double (arg1));
+ else if (TYPE_CODE (type) == TYPE_CODE_DECFLOAT)
+ return value_from_decfloat (type, value_contents (arg1));
else if (is_integral_type (type))
{
- /* Perform integral promotion for ANSI C/C++. FIXME: What about
- FORTRAN and (the deleted) chill ? */
- if (TYPE_LENGTH (type) < TYPE_LENGTH (builtin_type_int))
- result_type = builtin_type_int;
+ return value_from_longest (type, value_as_long (arg1));
+ }
+ else
+ {
+ error ("Argument to positive operation not a number.");
+ return 0; /* For lint -- never reached */
+ }
+}
+
+struct value *
+value_neg (struct value *arg1)
+{
+ struct type *type;
+
+ arg1 = coerce_ref (arg1);
+ type = check_typedef (value_type (arg1));
+
+ if (TYPE_CODE (type) == TYPE_CODE_DECFLOAT)
+ {
+ struct value *val = allocate_value (type);
+ int len = TYPE_LENGTH (type);
+ gdb_byte decbytes[16]; /* a decfloat is at most 128 bits long */
+
+ memcpy (decbytes, value_contents (arg1), len);
+
+ if (gdbarch_byte_order (get_type_arch (type)) == BFD_ENDIAN_LITTLE)
+ decbytes[len-1] = decbytes[len - 1] | 0x80;
+ else
+ decbytes[0] = decbytes[0] | 0x80;
- return value_from_longest (result_type, -value_as_long (arg1));
+ memcpy (value_contents_raw (val), decbytes, len);
+ return val;
+ }
+ else if (TYPE_CODE (type) == TYPE_CODE_FLT)
+ return value_from_double (type, -value_as_double (arg1));
+ else if (is_integral_type (type))
+ {
+ return value_from_longest (type, -value_as_long (arg1));
}
else
{
- error ("Argument to negate operation not a number.");
+ error (_("Argument to negate operation not a number."));
return 0; /* For lint -- never reached */
}
}
@@ -1348,67 +1592,61 @@ struct value *
value_complement (struct value *arg1)
{
struct type *type;
- struct type *result_type = VALUE_TYPE (arg1);
-
- COERCE_REF (arg1);
- type = check_typedef (VALUE_TYPE (arg1));
+ arg1 = coerce_ref (arg1);
+ type = check_typedef (value_type (arg1));
if (!is_integral_type (type))
- error ("Argument to complement operation not an integer or boolean.");
+ error (_("Argument to complement operation not an integer or boolean."));
- /* Perform integral promotion for ANSI C/C++.
- FIXME: What about FORTRAN ? */
- if (TYPE_LENGTH (type) < TYPE_LENGTH (builtin_type_int))
- result_type = builtin_type_int;
-
- return value_from_longest (result_type, ~value_as_long (arg1));
+ return value_from_longest (type, ~value_as_long (arg1));
}
-/* The INDEX'th bit of SET value whose VALUE_TYPE is TYPE,
- and whose VALUE_CONTENTS is valaddr.
+/* The INDEX'th bit of SET value whose value_type is TYPE,
+ and whose value_contents is valaddr.
Return -1 if out of range, -2 other error. */
int
-value_bit_index (struct type *type, char *valaddr, int index)
+value_bit_index (struct type *type, const gdb_byte *valaddr, int index)
{
+ struct gdbarch *gdbarch = get_type_arch (type);
LONGEST low_bound, high_bound;
LONGEST word;
unsigned rel_index;
- struct type *range = TYPE_FIELD_TYPE (type, 0);
+ struct type *range = TYPE_INDEX_TYPE (type);
if (get_discrete_bounds (range, &low_bound, &high_bound) < 0)
return -2;
if (index < low_bound || index > high_bound)
return -1;
rel_index = index - low_bound;
- word = unpack_long (builtin_type_unsigned_char,
- valaddr + (rel_index / TARGET_CHAR_BIT));
+ word = extract_unsigned_integer (valaddr + (rel_index / TARGET_CHAR_BIT), 1,
+ gdbarch_byte_order (gdbarch));
rel_index %= TARGET_CHAR_BIT;
- if (BITS_BIG_ENDIAN)
+ if (gdbarch_bits_big_endian (gdbarch))
rel_index = TARGET_CHAR_BIT - 1 - rel_index;
return (word >> rel_index) & 1;
}
-struct value *
+int
value_in (struct value *element, struct value *set)
{
int member;
- struct type *settype = check_typedef (VALUE_TYPE (set));
- struct type *eltype = check_typedef (VALUE_TYPE (element));
+ struct type *settype = check_typedef (value_type (set));
+ struct type *eltype = check_typedef (value_type (element));
if (TYPE_CODE (eltype) == TYPE_CODE_RANGE)
eltype = TYPE_TARGET_TYPE (eltype);
if (TYPE_CODE (settype) != TYPE_CODE_SET)
- error ("Second argument of 'IN' has wrong type");
+ error (_("Second argument of 'IN' has wrong type"));
if (TYPE_CODE (eltype) != TYPE_CODE_INT
&& TYPE_CODE (eltype) != TYPE_CODE_CHAR
&& TYPE_CODE (eltype) != TYPE_CODE_ENUM
&& TYPE_CODE (eltype) != TYPE_CODE_BOOL)
- error ("First argument of 'IN' has wrong type");
- member = value_bit_index (settype, VALUE_CONTENTS (set),
+ error (_("First argument of 'IN' has wrong type"));
+ member = value_bit_index (settype, value_contents (set),
value_as_long (element));
if (member < 0)
- error ("First argument of 'IN' not in range");
- return value_from_longest (LA_BOOL_TYPE, member);
+ error (_("First argument of 'IN' not in range"));
+ return member;
}
void