/* Perform non-arithmetic operations on values, for GDB.
- Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
- 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
- Free Software Foundation, Inc.
+
+ Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
+ 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+ 2008 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,
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 <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "symtab.h"
#include "regcache.h"
#include "cp-abi.h"
#include "block.h"
+#include "infcall.h"
+#include "dictionary.h"
+#include "cp-support.h"
+#include "dfp.h"
#include <errno.h>
#include "gdb_string.h"
#include "gdb_assert.h"
-
-/* Flag indicating HP compilers were used; needed to correctly handle some
- value operations with HP aCC code/runtime. */
-extern int hp_som_som_object_present;
+#include "cp-support.h"
+#include "observer.h"
extern int overload_debug;
/* Local functions. */
static int typecmp (int staticp, int varargs, int nargs,
struct field t1[], struct value *t2[]);
-static CORE_ADDR find_function_addr (struct value *, struct type **);
-static struct value *value_arg_coerce (struct value *, struct type *, int);
-
-
-static CORE_ADDR value_push (CORE_ADDR, struct value *);
-
-static struct value *search_struct_field (char *, struct value *, int,
- struct type *, int);
+static struct value *search_struct_field (char *, struct value *,
+ int, struct type *, int);
static struct value *search_struct_method (char *, struct value **,
struct value **,
int, int *, struct type *);
+static int find_oload_champ_namespace (struct type **, int,
+ const char *, const char *,
+ struct symbol ***,
+ struct badness_vector **);
+
+static
+int find_oload_champ_namespace_loop (struct type **, int,
+ const char *, const char *,
+ int, struct symbol ***,
+ struct badness_vector **, int *);
+
+static int find_oload_champ (struct type **, int, int, int,
+ struct fn_field *, struct symbol **,
+ struct badness_vector **);
+
+static int oload_method_static (int, struct fn_field *, int);
+
+enum oload_classification { STANDARD, NON_STANDARD, INCOMPATIBLE };
+
+static enum
+oload_classification classify_oload_match (struct badness_vector *,
+ int, int);
+
static int check_field_in (struct type *, const char *);
+static struct value *value_struct_elt_for_reference (struct type *,
+ int, struct type *,
+ char *,
+ struct type *,
+ int, enum noside);
+
+static struct value *value_namespace_elt (const struct type *,
+ char *, int , enum noside);
+
+static struct value *value_maybe_namespace_elt (const struct type *,
+ char *, int,
+ enum noside);
+
static CORE_ADDR allocate_space_in_inferior (int);
static struct value *cast_into_complex (struct type *, struct value *);
-static struct fn_field *find_method_list (struct value ** argp, char *method,
- int offset,
- struct type *type, int *num_fns,
- struct type **basetype,
- int *boffset);
+static struct fn_field *find_method_list (struct value **, char *,
+ int, struct type *, int *,
+ struct type **, int *);
void _initialize_valops (void);
-/* Flag for whether we want to abandon failed expression evals by default. */
-
#if 0
+/* Flag for whether we want to abandon failed expression evals by
+ default. */
+
static int auto_abandon = 0;
#endif
int overload_resolution = 0;
-
-/* This boolean tells what gdb should do if a signal is received while in
- a function called from gdb (call dummy). If set, gdb unwinds the stack
- and restore the context to what as it was before the call.
- The default is to stop in the frame where the signal was received. */
-
-int unwind_on_signal_p = 0;
-
-/* How you should pass arguments to a function depends on whether it
- was defined in K&R style or prototype style. If you define a
- function using the K&R syntax that takes a `float' argument, then
- callers must pass that argument as a `double'. If you define the
- function using the prototype syntax, then you must pass the
- argument as a `float', with no promotion.
-
- Unfortunately, on certain older platforms, the debug info doesn't
- indicate reliably how each function was defined. A function type's
- TYPE_FLAG_PROTOTYPED flag may be clear, even if the function was
- defined in prototype style. When calling a function whose
- TYPE_FLAG_PROTOTYPED flag is clear, GDB consults this flag to decide
- what to do.
-
- For modern targets, it is proper to assume that, if the prototype
- flag is clear, that can be trusted: `float' arguments should be
- promoted to `double'. For some older targets, if the prototype
- flag is clear, that doesn't tell us anything. The default is to
- trust the debug information; the user can override this behavior
- with "set coerce-float-to-double 0". */
-
-static int coerce_float_to_double;
-\f
+static void
+show_overload_resolution (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c,
+ const char *value)
+{
+ fprintf_filtered (file, _("\
+Overload resolution in evaluating C++ functions is %s.\n"),
+ value);
+}
/* Find the address of function name NAME in the inferior. */
struct value *
find_function_in_inferior (const char *name)
{
- register struct symbol *sym;
- sym = lookup_symbol (name, 0, VAR_NAMESPACE, 0, NULL);
+ struct symbol *sym;
+ sym = lookup_symbol (name, 0, VAR_DOMAIN, 0, NULL);
if (sym != NULL)
{
if (SYMBOL_CLASS (sym) != LOC_BLOCK)
{
- error ("\"%s\" exists in this program but is not a function.",
+ error (_("\"%s\" exists in this program but is not a function."),
name);
}
return value_of_variable (sym, NULL);
}
else
{
- struct minimal_symbol *msymbol = lookup_minimal_symbol (name, NULL, NULL);
+ struct minimal_symbol *msymbol =
+ lookup_minimal_symbol (name, NULL, NULL);
if (msymbol != NULL)
{
struct type *type;
else
{
if (!target_has_execution)
- error ("evaluation of this expression requires the target program to be active");
+ error (_("evaluation of this expression requires the target program to be active"));
else
- error ("evaluation of this expression requires the program to have a function \"%s\".", name);
+ error (_("evaluation of this expression requires the program to have a function \"%s\"."), name);
}
}
}
-/* Allocate NBYTES of space in the inferior using the inferior's malloc
- and return a value that is a pointer to the allocated space. */
+/* Allocate NBYTES of space in the inferior using the inferior's
+ malloc and return a value that is a pointer to the allocated
+ space. */
struct value *
value_allocate_space_in_inferior (int len)
{
struct value *blocklen;
- struct value *val = find_function_in_inferior (NAME_OF_MALLOC);
+ struct value *val =
+ find_function_in_inferior (gdbarch_name_of_malloc (current_gdbarch));
blocklen = value_from_longest (builtin_type_int, (LONGEST) len);
val = call_function_by_hand (val, 1, &blocklen);
if (value_logical_not (val))
{
if (!target_has_execution)
- error ("No memory available to program now: you need to start the target first");
+ error (_("No memory available to program now: you need to start the target first"));
else
- error ("No memory available to program: call to malloc failed");
+ error (_("No memory available to program: call to malloc failed"));
}
return val;
}
return value_as_long (value_allocate_space_in_inferior (len));
}
+/* Cast one pointer or reference type to another. Both TYPE and
+ the type of ARG2 should be pointer types, or else both should be
+ reference types. Returns the new pointer or reference. */
+
+struct value *
+value_cast_pointers (struct type *type, struct value *arg2)
+{
+ struct type *type2 = check_typedef (value_type (arg2));
+ struct type *t1 = check_typedef (TYPE_TARGET_TYPE (type));
+ struct type *t2 = check_typedef (TYPE_TARGET_TYPE (type2));
+
+ if (TYPE_CODE (t1) == TYPE_CODE_STRUCT
+ && TYPE_CODE (t2) == TYPE_CODE_STRUCT
+ && !value_logical_not (arg2))
+ {
+ struct value *v;
+
+ /* Look in the type of the source to see if it contains the
+ type of the target as a superclass. If so, we'll need to
+ offset the pointer rather than just change its type. */
+ if (TYPE_NAME (t1) != NULL)
+ {
+ struct value *v2;
+
+ if (TYPE_CODE (type2) == TYPE_CODE_REF)
+ v2 = coerce_ref (arg2);
+ else
+ v2 = value_ind (arg2);
+ v = search_struct_field (type_name_no_tag (t1),
+ v2, 0, t2, 1);
+ if (v)
+ {
+ v = value_addr (v);
+ deprecated_set_value_type (v, type);
+ return v;
+ }
+ }
+
+ /* Look in the type of the target to see if it contains the
+ type of the source as a superclass. If so, we'll need to
+ offset the pointer rather than just change its type.
+ FIXME: This fails silently with virtual inheritance. */
+ if (TYPE_NAME (t2) != NULL)
+ {
+ v = search_struct_field (type_name_no_tag (t2),
+ value_zero (t1, not_lval), 0, t1, 1);
+ if (v)
+ {
+ CORE_ADDR addr2 = value_as_address (arg2);
+ addr2 -= (VALUE_ADDRESS (v)
+ + value_offset (v)
+ + value_embedded_offset (v));
+ return value_from_pointer (type, addr2);
+ }
+ }
+ }
+
+ /* No superclass found, just change the pointer type. */
+ arg2 = value_copy (arg2);
+ deprecated_set_value_type (arg2, type);
+ arg2 = value_change_enclosing_type (arg2, type);
+ set_value_pointed_to_offset (arg2, 0); /* pai: chk_val */
+ return arg2;
+}
+
/* Cast value ARG2 to type TYPE and return as a value.
More general than a C cast: accepts any two types of the same length,
and if ARG2 is an lvalue it can be cast into anything at all. */
struct value *
value_cast (struct type *type, struct value *arg2)
{
- register enum type_code code1;
- register enum type_code code2;
- register int scalar;
+ enum type_code code1;
+ enum type_code code2;
+ int scalar;
struct type *type2;
int convert_to_boolean = 0;
- if (VALUE_TYPE (arg2) == type)
+ if (value_type (arg2) == type)
return arg2;
CHECK_TYPEDEF (type);
code1 = TYPE_CODE (type);
- COERCE_REF (arg2);
- type2 = check_typedef (VALUE_TYPE (arg2));
+ arg2 = coerce_ref (arg2);
+ type2 = check_typedef (value_type (arg2));
- /* A cast to an undetermined-length array_type, such as (TYPE [])OBJECT,
- is treated like a cast to (TYPE [N])OBJECT,
- where N is sizeof(OBJECT)/sizeof(TYPE). */
+ /* You can't cast to a reference type. See value_cast_pointers
+ instead. */
+ gdb_assert (code1 != TYPE_CODE_REF);
+
+ /* A cast to an undetermined-length array_type, such as
+ (TYPE [])OBJECT, is treated like a cast to (TYPE [N])OBJECT,
+ where N is sizeof(OBJECT)/sizeof(TYPE). */
if (code1 == TYPE_CODE_ARRAY)
{
struct type *element_type = TYPE_TARGET_TYPE (type);
low_bound = 0, high_bound = 0;
new_length = val_length / element_length;
if (val_length % element_length != 0)
- warning ("array element type size does not divide object size in cast");
- /* FIXME-type-allocation: need a way to free this type when we are
- done with it. */
+ warning (_("array element type size does not divide object size in cast"));
+ /* FIXME-type-allocation: need a way to free this type when
+ we are done with it. */
range_type = create_range_type ((struct type *) NULL,
TYPE_TARGET_TYPE (range_type),
low_bound,
new_length + low_bound - 1);
- VALUE_TYPE (arg2) = create_array_type ((struct type *) NULL,
- element_type, range_type);
+ deprecated_set_value_type (arg2,
+ create_array_type ((struct type *) NULL,
+ element_type,
+ range_type));
return arg2;
}
}
if (TYPE_CODE (type2) == TYPE_CODE_FUNC)
arg2 = value_coerce_function (arg2);
- type2 = check_typedef (VALUE_TYPE (arg2));
- COERCE_VARYING_ARRAY (arg2, type2);
+ type2 = check_typedef (value_type (arg2));
code2 = TYPE_CODE (type2);
if (code1 == TYPE_CODE_COMPLEX)
code2 = TYPE_CODE_INT;
scalar = (code2 == TYPE_CODE_INT || code2 == TYPE_CODE_FLT
- || code2 == TYPE_CODE_ENUM || code2 == TYPE_CODE_RANGE);
+ || code2 == TYPE_CODE_DECFLOAT || code2 == TYPE_CODE_ENUM
+ || code2 == TYPE_CODE_RANGE);
if (code1 == TYPE_CODE_STRUCT
&& code2 == TYPE_CODE_STRUCT
type of the target as a superclass. If so, we'll need to
offset the object in addition to changing its type. */
struct value *v = search_struct_field (type_name_no_tag (type),
- arg2, 0, type2, 1);
+ arg2, 0, type2, 1);
if (v)
{
- VALUE_TYPE (v) = type;
+ deprecated_set_value_type (v, type);
return v;
}
}
if (code1 == TYPE_CODE_FLT && scalar)
return value_from_double (type, value_as_double (arg2));
+ else if (code1 == TYPE_CODE_DECFLOAT && scalar)
+ {
+ int dec_len = TYPE_LENGTH (type);
+ gdb_byte dec[16];
+
+ if (code2 == TYPE_CODE_FLT)
+ decimal_from_floating (arg2, dec, dec_len);
+ else if (code2 == TYPE_CODE_DECFLOAT)
+ decimal_convert (value_contents (arg2), TYPE_LENGTH (type2),
+ dec, dec_len);
+ else
+ /* The only option left is an integral type. */
+ decimal_from_integral (arg2, dec, dec_len);
+
+ return value_from_decfloat (type, dec);
+ }
else if ((code1 == TYPE_CODE_INT || code1 == TYPE_CODE_ENUM
|| code1 == TYPE_CODE_RANGE)
- && (scalar || code2 == TYPE_CODE_PTR))
+ && (scalar || code2 == TYPE_CODE_PTR
+ || code2 == TYPE_CODE_MEMBERPTR))
{
LONGEST longest;
- if (hp_som_som_object_present && /* if target compiled by HP aCC */
- (code2 == TYPE_CODE_PTR))
- {
- unsigned int *ptr;
- struct value *retvalp;
-
- switch (TYPE_CODE (TYPE_TARGET_TYPE (type2)))
- {
- /* With HP aCC, pointers to data members have a bias */
- case TYPE_CODE_MEMBER:
- retvalp = value_from_longest (type, value_as_long (arg2));
- /* force evaluation */
- ptr = (unsigned int *) VALUE_CONTENTS (retvalp);
- *ptr &= ~0x20000000; /* zap 29th bit to remove bias */
- return retvalp;
-
- /* While pointers to methods don't really point to a function */
- case TYPE_CODE_METHOD:
- error ("Pointers to methods not supported with HP aCC");
-
- default:
- break; /* fall out and go to normal handling */
- }
- }
-
/* When we cast pointers to integers, we mustn't use
- POINTER_TO_ADDRESS to find the address the pointer
+ gdbarch_pointer_to_address to find the address the pointer
represents, as value_as_long would. GDB should evaluate
expressions just as the compiler would --- and the compiler
sees a cast as a simple reinterpretation of the pointer's
bits. */
if (code2 == TYPE_CODE_PTR)
- longest = extract_unsigned_integer (VALUE_CONTENTS (arg2),
+ longest = extract_unsigned_integer (value_contents (arg2),
TYPE_LENGTH (type2));
else
longest = value_as_long (arg2);
return value_from_longest (type, convert_to_boolean ?
(LONGEST) (longest ? 1 : 0) : longest);
}
- else if (code1 == TYPE_CODE_PTR && (code2 == TYPE_CODE_INT ||
- code2 == TYPE_CODE_ENUM ||
- code2 == TYPE_CODE_RANGE))
+ else if (code1 == TYPE_CODE_PTR && (code2 == TYPE_CODE_INT
+ || code2 == TYPE_CODE_ENUM
+ || code2 == TYPE_CODE_RANGE))
{
/* TYPE_LENGTH (type) is the length of a pointer, but we really
want the length of an address! -- we are really dealing with
otherwise occur when dealing with a target having two byte
pointers and four byte addresses. */
- int addr_bit = TARGET_ADDR_BIT;
+ int addr_bit = gdbarch_addr_bit (current_gdbarch);
LONGEST longest = value_as_long (arg2);
if (addr_bit < sizeof (LONGEST) * HOST_CHAR_BIT)
{
if (longest >= ((LONGEST) 1 << addr_bit)
|| longest <= -((LONGEST) 1 << addr_bit))
- warning ("value truncated");
+ warning (_("value truncated"));
}
return value_from_longest (type, longest);
}
+ else if (code1 == TYPE_CODE_METHODPTR && code2 == TYPE_CODE_INT
+ && value_as_long (arg2) == 0)
+ {
+ struct value *result = allocate_value (type);
+ cplus_make_method_ptr (value_contents_writeable (result), 0, 0);
+ return result;
+ }
+ else if (code1 == TYPE_CODE_MEMBERPTR && code2 == TYPE_CODE_INT
+ && value_as_long (arg2) == 0)
+ {
+ /* The Itanium C++ ABI represents NULL pointers to members as
+ minus one, instead of biasing the normal case. */
+ return value_from_longest (type, -1);
+ }
else if (TYPE_LENGTH (type) == TYPE_LENGTH (type2))
{
if (code1 == TYPE_CODE_PTR && code2 == TYPE_CODE_PTR)
- {
- struct type *t1 = check_typedef (TYPE_TARGET_TYPE (type));
- struct type *t2 = check_typedef (TYPE_TARGET_TYPE (type2));
- if (TYPE_CODE (t1) == TYPE_CODE_STRUCT
- && TYPE_CODE (t2) == TYPE_CODE_STRUCT
- && !value_logical_not (arg2))
- {
- struct value *v;
-
- /* Look in the type of the source to see if it contains the
- type of the target as a superclass. If so, we'll need to
- offset the pointer rather than just change its type. */
- if (TYPE_NAME (t1) != NULL)
- {
- v = search_struct_field (type_name_no_tag (t1),
- value_ind (arg2), 0, t2, 1);
- if (v)
- {
- v = value_addr (v);
- VALUE_TYPE (v) = type;
- return v;
- }
- }
+ return value_cast_pointers (type, arg2);
- /* Look in the type of the target to see if it contains the
- type of the source as a superclass. If so, we'll need to
- offset the pointer rather than just change its type.
- FIXME: This fails silently with virtual inheritance. */
- if (TYPE_NAME (t2) != NULL)
- {
- v = search_struct_field (type_name_no_tag (t2),
- value_zero (t1, not_lval), 0, t1, 1);
- if (v)
- {
- CORE_ADDR addr2 = value_as_address (arg2);
- addr2 -= (VALUE_ADDRESS (v)
- + VALUE_OFFSET (v)
- + VALUE_EMBEDDED_OFFSET (v));
- return value_from_pointer (type, addr2);
- }
- }
- }
- /* No superclass found, just fall through to change ptr type. */
- }
- VALUE_TYPE (arg2) = type;
+ arg2 = value_copy (arg2);
+ deprecated_set_value_type (arg2, type);
arg2 = value_change_enclosing_type (arg2, type);
- VALUE_POINTED_TO_OFFSET (arg2) = 0; /* pai: chk_val */
+ set_value_pointed_to_offset (arg2, 0); /* pai: chk_val */
return arg2;
}
else if (VALUE_LVAL (arg2) == lval_memory)
- {
- return value_at_lazy (type, VALUE_ADDRESS (arg2) + VALUE_OFFSET (arg2),
- VALUE_BFD_SECTION (arg2));
- }
+ return value_at_lazy (type,
+ VALUE_ADDRESS (arg2) + value_offset (arg2));
else if (code1 == TYPE_CODE_VOID)
{
return value_zero (builtin_type_void, not_lval);
}
else
{
- error ("Invalid cast.");
+ error (_("Invalid cast."));
return 0;
}
}
value_zero (struct type *type, enum lval_type lv)
{
struct value *val = allocate_value (type);
-
- memset (VALUE_CONTENTS (val), 0, TYPE_LENGTH (check_typedef (type)));
VALUE_LVAL (val) = lv;
return val;
}
+/* Create a value of numeric type TYPE that is one, and return it. */
+
+struct value *
+value_one (struct type *type, enum lval_type lv)
+{
+ struct type *type1 = check_typedef (type);
+ struct value *val = NULL; /* avoid -Wall warning */
+
+ if (TYPE_CODE (type1) == TYPE_CODE_DECFLOAT)
+ {
+ struct value *int_one = value_from_longest (builtin_type_int, 1);
+ struct value *val;
+ gdb_byte v[16];
+
+ decimal_from_integral (int_one, v, TYPE_LENGTH (builtin_type_int));
+ val = value_from_decfloat (type, v);
+ }
+ else if (TYPE_CODE (type1) == TYPE_CODE_FLT)
+ {
+ val = value_from_double (type, (DOUBLEST) 1);
+ }
+ else if (is_integral_type (type1))
+ {
+ val = value_from_longest (type, (LONGEST) 1);
+ }
+ else
+ {
+ error (_("Not a numeric type."));
+ }
+
+ VALUE_LVAL (val) = lv;
+ return val;
+}
+
/* Return a value with type TYPE located at ADDR.
Call value_at only if the data needs to be fetched immediately;
if we can be 'lazy' and defer the fetch, perhaps indefinately, call
value_at_lazy instead. value_at_lazy simply records the address of
the data and sets the lazy-evaluation-required flag. The lazy flag
- is tested in the VALUE_CONTENTS macro, which is used if and when
+ is tested in the value_contents macro, which is used if and when
the contents are actually required.
Note: value_at does *NOT* handle embedded offsets; perform such
- adjustments before or after calling it. */
+ adjustments before or after calling it. */
struct value *
-value_at (struct type *type, CORE_ADDR addr, asection *sect)
+value_at (struct type *type, CORE_ADDR addr)
{
struct value *val;
if (TYPE_CODE (check_typedef (type)) == TYPE_CODE_VOID)
- error ("Attempt to dereference a generic pointer.");
+ error (_("Attempt to dereference a generic pointer."));
val = allocate_value (type);
- read_memory (addr, VALUE_CONTENTS_ALL_RAW (val), TYPE_LENGTH (type));
+ read_memory (addr, value_contents_all_raw (val), TYPE_LENGTH (type));
VALUE_LVAL (val) = lval_memory;
VALUE_ADDRESS (val) = addr;
- VALUE_BFD_SECTION (val) = sect;
return val;
}
/* Return a lazy value with type TYPE located at ADDR (cf. value_at). */
struct value *
-value_at_lazy (struct type *type, CORE_ADDR addr, asection *sect)
+value_at_lazy (struct type *type, CORE_ADDR addr)
{
struct value *val;
if (TYPE_CODE (check_typedef (type)) == TYPE_CODE_VOID)
- error ("Attempt to dereference a generic pointer.");
+ error (_("Attempt to dereference a generic pointer."));
val = allocate_value (type);
VALUE_LVAL (val) = lval_memory;
VALUE_ADDRESS (val) = addr;
- VALUE_LAZY (val) = 1;
- VALUE_BFD_SECTION (val) = sect;
+ set_value_lazy (val, 1);
return val;
}
-/* Called only from the VALUE_CONTENTS and VALUE_CONTENTS_ALL macros,
- if the current data for a variable needs to be loaded into
- VALUE_CONTENTS(VAL). Fetches the data from the user's process, and
- clears the lazy flag to indicate that the data in the buffer is valid.
+/* Called only from the value_contents and value_contents_all()
+ macros, if the current data for a variable needs to be loaded into
+ value_contents(VAL). Fetches the data from the user's process, and
+ clears the lazy flag to indicate that the data in the buffer is
+ valid.
- If the value is zero-length, we avoid calling read_memory, which would
- abort. We mark the value as fetched anyway -- all 0 bytes of it.
+ If the value is zero-length, we avoid calling read_memory, which
+ would abort. We mark the value as fetched anyway -- all 0 bytes of
+ it.
- This function returns a value because it is used in the VALUE_CONTENTS
- macro as part of an expression, where a void would not work. The
- value is ignored. */
+ This function returns a value because it is used in the
+ value_contents macro as part of an expression, where a void would
+ not work. The value is ignored. */
int
value_fetch_lazy (struct value *val)
{
- CORE_ADDR addr = VALUE_ADDRESS (val) + VALUE_OFFSET (val);
- int length = TYPE_LENGTH (VALUE_ENCLOSING_TYPE (val));
+ CORE_ADDR addr = VALUE_ADDRESS (val) + value_offset (val);
+ int length = TYPE_LENGTH (value_enclosing_type (val));
- struct type *type = VALUE_TYPE (val);
+ struct type *type = value_type (val);
if (length)
- read_memory (addr, VALUE_CONTENTS_ALL_RAW (val), length);
+ read_memory (addr, value_contents_all_raw (val), length);
- VALUE_LAZY (val) = 0;
+ set_value_lazy (val, 0);
return 0;
}
struct value *
value_assign (struct value *toval, struct value *fromval)
{
- register struct type *type;
+ struct type *type;
struct value *val;
- char *raw_buffer = (char*) alloca (MAX_REGISTER_RAW_SIZE);
- int use_buffer = 0;
struct frame_id old_frame;
- if (!toval->modifiable)
- error ("Left operand of assignment is not a modifiable lvalue.");
+ if (!deprecated_value_modifiable (toval))
+ error (_("Left operand of assignment is not a modifiable lvalue."));
- COERCE_REF (toval);
+ toval = coerce_ref (toval);
- type = VALUE_TYPE (toval);
+ type = value_type (toval);
if (VALUE_LVAL (toval) != lval_internalvar)
fromval = value_cast (type, fromval);
else
- COERCE_ARRAY (fromval);
+ fromval = coerce_array (fromval);
CHECK_TYPEDEF (type);
- /* If TOVAL is a special machine register requiring conversion
- of program values to a special raw format,
- convert FROMVAL's contents now, with result in `raw_buffer',
- and set USE_BUFFER to the number of bytes to write. */
-
- if (VALUE_REGNO (toval) >= 0)
- {
- int regno = VALUE_REGNO (toval);
- if (CONVERT_REGISTER_P (regno))
- {
- struct type *fromtype = check_typedef (VALUE_TYPE (fromval));
- VALUE_TO_REGISTER (fromtype, regno, VALUE_CONTENTS (fromval), raw_buffer);
- use_buffer = REGISTER_RAW_SIZE (regno);
- }
- }
-
- /* Since modifying a register can trash the frame chain, and modifying memory
- can trash the frame cache, we save the old frame and then restore the new
- frame afterwards. */
- old_frame = get_frame_id (deprecated_selected_frame);
+ /* Since modifying a register can trash the frame chain, and
+ modifying memory can trash the frame cache, we save the old frame
+ and then restore the new frame afterwards. */
+ old_frame = get_frame_id (deprecated_safe_get_selected_frame ());
switch (VALUE_LVAL (toval))
{
case lval_internalvar:
set_internalvar (VALUE_INTERNALVAR (toval), fromval);
val = value_copy (VALUE_INTERNALVAR (toval)->value);
- val = value_change_enclosing_type (val, VALUE_ENCLOSING_TYPE (fromval));
- VALUE_EMBEDDED_OFFSET (val) = VALUE_EMBEDDED_OFFSET (fromval);
- VALUE_POINTED_TO_OFFSET (val) = VALUE_POINTED_TO_OFFSET (fromval);
+ val = value_change_enclosing_type (val,
+ value_enclosing_type (fromval));
+ set_value_embedded_offset (val, value_embedded_offset (fromval));
+ set_value_pointed_to_offset (val,
+ value_pointed_to_offset (fromval));
return val;
case lval_internalvar_component:
set_internalvar_component (VALUE_INTERNALVAR (toval),
- VALUE_OFFSET (toval),
- VALUE_BITPOS (toval),
- VALUE_BITSIZE (toval),
+ value_offset (toval),
+ value_bitpos (toval),
+ value_bitsize (toval),
fromval);
break;
case lval_memory:
{
- char *dest_buffer;
+ const gdb_byte *dest_buffer;
CORE_ADDR changed_addr;
int changed_len;
+ gdb_byte buffer[sizeof (LONGEST)];
- if (VALUE_BITSIZE (toval))
+ if (value_bitsize (toval))
{
- char buffer[sizeof (LONGEST)];
- /* We assume that the argument to read_memory is in units of
- host chars. FIXME: Is that correct? */
- changed_len = (VALUE_BITPOS (toval)
- + VALUE_BITSIZE (toval)
+ /* We assume that the argument to read_memory is in units
+ of host chars. FIXME: Is that correct? */
+ changed_len = (value_bitpos (toval)
+ + value_bitsize (toval)
+ HOST_CHAR_BIT - 1)
/ HOST_CHAR_BIT;
if (changed_len > (int) sizeof (LONGEST))
- error ("Can't handle bitfields which don't fit in a %d bit word.",
+ error (_("Can't handle bitfields which don't fit in a %d bit word."),
(int) sizeof (LONGEST) * HOST_CHAR_BIT);
- read_memory (VALUE_ADDRESS (toval) + VALUE_OFFSET (toval),
+ read_memory (VALUE_ADDRESS (toval) + value_offset (toval),
buffer, changed_len);
modify_field (buffer, value_as_long (fromval),
- VALUE_BITPOS (toval), VALUE_BITSIZE (toval));
- changed_addr = VALUE_ADDRESS (toval) + VALUE_OFFSET (toval);
+ value_bitpos (toval), value_bitsize (toval));
+ changed_addr = VALUE_ADDRESS (toval) + value_offset (toval);
dest_buffer = buffer;
}
- else if (use_buffer)
- {
- changed_addr = VALUE_ADDRESS (toval) + VALUE_OFFSET (toval);
- changed_len = use_buffer;
- dest_buffer = raw_buffer;
- }
else
{
- changed_addr = VALUE_ADDRESS (toval) + VALUE_OFFSET (toval);
+ changed_addr = VALUE_ADDRESS (toval) + value_offset (toval);
changed_len = TYPE_LENGTH (type);
- dest_buffer = VALUE_CONTENTS (fromval);
+ dest_buffer = value_contents (fromval);
}
write_memory (changed_addr, dest_buffer, changed_len);
- if (memory_changed_hook)
- memory_changed_hook (changed_addr, changed_len);
- target_changed_event ();
+ if (deprecated_memory_changed_hook)
+ deprecated_memory_changed_hook (changed_addr, changed_len);
}
break;
- case lval_reg_frame_relative:
case lval_register:
{
- /* value is stored in a series of registers in the frame
- specified by the structure. Copy that value out, modify
- it, and copy it back in. */
- int amount_copied;
- int amount_to_copy;
- char *buffer;
- int value_reg;
- int reg_offset;
- int byte_offset;
- int regno;
struct frame_info *frame;
+ int value_reg;
/* Figure out which frame this is in currently. */
- if (VALUE_LVAL (toval) == lval_register)
+ frame = frame_find_by_id (VALUE_FRAME_ID (toval));
+ value_reg = VALUE_REGNUM (toval);
+
+ if (!frame)
+ error (_("Value being assigned to is no longer active."));
+
+ if (gdbarch_convert_register_p
+ (current_gdbarch, VALUE_REGNUM (toval), type))
{
- frame = get_current_frame ();
- value_reg = VALUE_REGNO (toval);
+ /* If TOVAL is a special machine register requiring
+ conversion of program values to a special raw
+ format. */
+ gdbarch_value_to_register (current_gdbarch, frame,
+ VALUE_REGNUM (toval), type,
+ value_contents (fromval));
}
else
{
- for (frame = get_current_frame ();
- frame && get_frame_base (frame) != VALUE_FRAME (toval);
- frame = get_prev_frame (frame))
- ;
- value_reg = VALUE_FRAME_REGNUM (toval);
- }
+ if (value_bitsize (toval))
+ {
+ int changed_len;
+ gdb_byte buffer[sizeof (LONGEST)];
- if (!frame)
- error ("Value being assigned to is no longer active.");
+ changed_len = (value_bitpos (toval)
+ + value_bitsize (toval)
+ + HOST_CHAR_BIT - 1)
+ / HOST_CHAR_BIT;
- /* Locate the first register that falls in the value that
- needs to be transfered. Compute the offset of the value in
- that register. */
- {
- int offset;
- for (reg_offset = value_reg, offset = 0;
- offset + REGISTER_RAW_SIZE (reg_offset) <= VALUE_OFFSET (toval);
- reg_offset++);
- byte_offset = VALUE_OFFSET (toval) - offset;
- }
+ if (changed_len > (int) sizeof (LONGEST))
+ error (_("Can't handle bitfields which don't fit in a %d bit word."),
+ (int) sizeof (LONGEST) * HOST_CHAR_BIT);
- /* Compute the number of register aligned values that need to
- be copied. */
- if (VALUE_BITSIZE (toval))
- amount_to_copy = byte_offset + 1;
- else
- amount_to_copy = byte_offset + TYPE_LENGTH (type);
+ get_frame_register_bytes (frame, value_reg,
+ value_offset (toval),
+ changed_len, buffer);
- /* And a bounce buffer. Be slightly over generous. */
- buffer = (char *) alloca (amount_to_copy
- + MAX_REGISTER_RAW_SIZE);
+ modify_field (buffer, value_as_long (fromval),
+ value_bitpos (toval),
+ value_bitsize (toval));
- /* Copy it in. */
- for (regno = reg_offset, amount_copied = 0;
- amount_copied < amount_to_copy;
- amount_copied += REGISTER_RAW_SIZE (regno), regno++)
- {
- frame_register_read (frame, regno, buffer + amount_copied);
- }
-
- /* Modify what needs to be modified. */
- if (VALUE_BITSIZE (toval))
- {
- modify_field (buffer + byte_offset,
- value_as_long (fromval),
- VALUE_BITPOS (toval), VALUE_BITSIZE (toval));
- }
- else if (use_buffer)
- {
- memcpy (buffer + VALUE_OFFSET (toval), raw_buffer, use_buffer);
- }
- else
- {
- memcpy (buffer + byte_offset, VALUE_CONTENTS (fromval),
- TYPE_LENGTH (type));
- /* Do any conversion necessary when storing this type to
- more than one register. */
-#ifdef REGISTER_CONVERT_FROM_TYPE
- REGISTER_CONVERT_FROM_TYPE (value_reg, type,
- (buffer + byte_offset));
-#endif
- }
-
- /* Copy it out. */
- for (regno = reg_offset, amount_copied = 0;
- amount_copied < amount_to_copy;
- amount_copied += REGISTER_RAW_SIZE (regno), regno++)
- {
- enum lval_type lval;
- CORE_ADDR addr;
- int optim;
- int realnum;
-
- /* Just find out where to put it. */
- frame_register (frame, regno, &optim, &lval, &addr, &realnum,
- NULL);
-
- if (optim)
- error ("Attempt to assign to a value that was optimized out.");
- if (lval == lval_memory)
- write_memory (addr, buffer + amount_copied,
- REGISTER_RAW_SIZE (regno));
- else if (lval == lval_register)
- regcache_cooked_write (current_regcache, realnum,
- (buffer + amount_copied));
+ put_frame_register_bytes (frame, value_reg,
+ value_offset (toval),
+ changed_len, buffer);
+ }
else
- error ("Attempt to assign to an unmodifiable value.");
+ {
+ put_frame_register_bytes (frame, value_reg,
+ value_offset (toval),
+ TYPE_LENGTH (type),
+ value_contents (fromval));
+ }
}
- if (register_changed_hook)
- register_changed_hook (-1);
- target_changed_event ();
-
+ if (deprecated_register_changed_hook)
+ deprecated_register_changed_hook (-1);
+ observer_notify_target_changed (¤t_target);
+ break;
}
- break;
-
default:
- error ("Left operand of assignment is not an lvalue.");
+ error (_("Left operand of assignment is not an lvalue."));
}
/* Assigning to the stack pointer, frame pointer, and other
{
case lval_memory:
case lval_register:
- case lval_reg_frame_relative:
reinit_frame_cache ();
- /* Having destoroyed the frame cache, restore the selected frame. */
+ /* Having destroyed the frame cache, restore the selected
+ frame. */
/* FIXME: cagney/2002-11-02: There has to be a better way of
doing this. Instead of constantly saving/restoring the
break;
}
- /* If the field does not entirely fill a LONGEST, then zero the sign bits.
- If the field is signed, and is negative, then sign extend. */
- if ((VALUE_BITSIZE (toval) > 0)
- && (VALUE_BITSIZE (toval) < 8 * (int) sizeof (LONGEST)))
+ /* If the field does not entirely fill a LONGEST, then zero the sign
+ bits. If the field is signed, and is negative, then sign
+ extend. */
+ if ((value_bitsize (toval) > 0)
+ && (value_bitsize (toval) < 8 * (int) sizeof (LONGEST)))
{
LONGEST fieldval = value_as_long (fromval);
- LONGEST valmask = (((ULONGEST) 1) << VALUE_BITSIZE (toval)) - 1;
+ LONGEST valmask = (((ULONGEST) 1) << value_bitsize (toval)) - 1;
fieldval &= valmask;
- if (!TYPE_UNSIGNED (type) && (fieldval & (valmask ^ (valmask >> 1))))
+ if (!TYPE_UNSIGNED (type)
+ && (fieldval & (valmask ^ (valmask >> 1))))
fieldval |= ~valmask;
fromval = value_from_longest (type, fieldval);
}
val = value_copy (toval);
- memcpy (VALUE_CONTENTS_RAW (val), VALUE_CONTENTS (fromval),
+ memcpy (value_contents_raw (val), value_contents (fromval),
TYPE_LENGTH (type));
- VALUE_TYPE (val) = type;
- val = value_change_enclosing_type (val, VALUE_ENCLOSING_TYPE (fromval));
- VALUE_EMBEDDED_OFFSET (val) = VALUE_EMBEDDED_OFFSET (fromval);
- VALUE_POINTED_TO_OFFSET (val) = VALUE_POINTED_TO_OFFSET (fromval);
+ deprecated_set_value_type (val, type);
+ val = value_change_enclosing_type (val,
+ value_enclosing_type (fromval));
+ set_value_embedded_offset (val, value_embedded_offset (fromval));
+ set_value_pointed_to_offset (val, value_pointed_to_offset (fromval));
return val;
}
struct value *val;
if (VALUE_LVAL (arg1) != lval_memory)
- error ("Only values in memory can be extended with '@'.");
+ error (_("Only values in memory can be extended with '@'."));
if (count < 1)
- error ("Invalid number %d of repetitions.", count);
+ error (_("Invalid number %d of repetitions."), count);
- val = allocate_repeat_value (VALUE_ENCLOSING_TYPE (arg1), count);
+ val = allocate_repeat_value (value_enclosing_type (arg1), count);
- read_memory (VALUE_ADDRESS (arg1) + VALUE_OFFSET (arg1),
- VALUE_CONTENTS_ALL_RAW (val),
- TYPE_LENGTH (VALUE_ENCLOSING_TYPE (val)));
+ read_memory (VALUE_ADDRESS (arg1) + value_offset (arg1),
+ value_contents_all_raw (val),
+ TYPE_LENGTH (value_enclosing_type (val)));
VALUE_LVAL (val) = lval_memory;
- VALUE_ADDRESS (val) = VALUE_ADDRESS (arg1) + VALUE_OFFSET (arg1);
+ VALUE_ADDRESS (val) = VALUE_ADDRESS (arg1) + value_offset (arg1);
return val;
}
{
if (BLOCK_FUNCTION (b)
&& SYMBOL_PRINT_NAME (BLOCK_FUNCTION (b)))
- error ("No frame is currently executing in block %s.",
+ error (_("No frame is currently executing in block %s."),
SYMBOL_PRINT_NAME (BLOCK_FUNCTION (b)));
else
- error ("No frame is currently executing in specified block");
+ error (_("No frame is currently executing in specified block"));
}
}
val = read_var_value (var, frame);
if (!val)
- error ("Address of symbol \"%s\" is unknown.", SYMBOL_PRINT_NAME (var));
+ error (_("Address of symbol \"%s\" is unknown."), SYMBOL_PRINT_NAME (var));
return val;
}
-/* Given a value which is an array, return a value which is a pointer to its
- first element, regardless of whether or not the array has a nonzero lower
- bound.
+/* Given a value which is an array, return a value which is a pointer
+ to its first element, regardless of whether or not the array has a
+ nonzero lower bound.
- FIXME: A previous comment here indicated that this routine should be
- substracting the array's lower bound. It's not clear to me that this
- is correct. Given an array subscripting operation, it would certainly
- work to do the adjustment here, essentially computing:
+ FIXME: A previous comment here indicated that this routine should
+ be substracting the array's lower bound. It's not clear to me that
+ this is correct. Given an array subscripting operation, it would
+ certainly work to do the adjustment here, essentially computing:
(&array[0] - (lowerbound * sizeof array[0])) + (index * sizeof array[0])
- However I believe a more appropriate and logical place to account for
- the lower bound is to do so in value_subscript, essentially computing:
+ However I believe a more appropriate and logical place to account
+ for the lower bound is to do so in value_subscript, essentially
+ computing:
(&array[0] + ((index - lowerbound) * sizeof array[0]))
- As further evidence consider what would happen with operations other
- than array subscripting, where the caller would get back a value that
- had an address somewhere before the actual first element of the array,
- and the information about the lower bound would be lost because of
- the coercion to pointer type.
+ As further evidence consider what would happen with operations
+ other than array subscripting, where the caller would get back a
+ value that had an address somewhere before the actual first element
+ of the array, and the information about the lower bound would be
+ lost because of the coercion to pointer type.
*/
struct value *
value_coerce_array (struct value *arg1)
{
- register struct type *type = check_typedef (VALUE_TYPE (arg1));
+ struct type *type = check_typedef (value_type (arg1));
if (VALUE_LVAL (arg1) != lval_memory)
- error ("Attempt to take address of value not located in memory.");
+ error (_("Attempt to take address of value not located in memory."));
return value_from_pointer (lookup_pointer_type (TYPE_TARGET_TYPE (type)),
- (VALUE_ADDRESS (arg1) + VALUE_OFFSET (arg1)));
+ (VALUE_ADDRESS (arg1) + value_offset (arg1)));
}
/* Given a value which is a function, return a value which is a pointer
struct value *retval;
if (VALUE_LVAL (arg1) != lval_memory)
- error ("Attempt to take address of value not located in memory.");
+ error (_("Attempt to take address of value not located in memory."));
- retval = value_from_pointer (lookup_pointer_type (VALUE_TYPE (arg1)),
- (VALUE_ADDRESS (arg1) + VALUE_OFFSET (arg1)));
- VALUE_BFD_SECTION (retval) = VALUE_BFD_SECTION (arg1);
+ retval = value_from_pointer (lookup_pointer_type (value_type (arg1)),
+ (VALUE_ADDRESS (arg1) + value_offset (arg1)));
return retval;
}
-/* Return a pointer value for the object for which ARG1 is the contents. */
+/* Return a pointer value for the object for which ARG1 is the
+ contents. */
struct value *
value_addr (struct value *arg1)
{
struct value *arg2;
- struct type *type = check_typedef (VALUE_TYPE (arg1));
+ struct type *type = check_typedef (value_type (arg1));
if (TYPE_CODE (type) == TYPE_CODE_REF)
{
- /* Copy the value, but change the type from (T&) to (T*).
- We keep the same location information, which is efficient,
- and allows &(&X) to get the location containing the reference. */
+ /* Copy the value, but change the type from (T&) to (T*). We
+ keep the same location information, which is efficient, and
+ allows &(&X) to get the location containing the reference. */
arg2 = value_copy (arg1);
- VALUE_TYPE (arg2) = lookup_pointer_type (TYPE_TARGET_TYPE (type));
+ deprecated_set_value_type (arg2,
+ lookup_pointer_type (TYPE_TARGET_TYPE (type)));
return arg2;
}
if (TYPE_CODE (type) == TYPE_CODE_FUNC)
return value_coerce_function (arg1);
if (VALUE_LVAL (arg1) != lval_memory)
- error ("Attempt to take address of value not located in memory.");
+ error (_("Attempt to take address of value not located in memory."));
/* Get target memory address */
- arg2 = value_from_pointer (lookup_pointer_type (VALUE_TYPE (arg1)),
+ arg2 = value_from_pointer (lookup_pointer_type (value_type (arg1)),
(VALUE_ADDRESS (arg1)
- + VALUE_OFFSET (arg1)
- + VALUE_EMBEDDED_OFFSET (arg1)));
+ + value_offset (arg1)
+ + value_embedded_offset (arg1)));
/* This may be a pointer to a base subobject; so remember the
- full derived object's type ... */
- arg2 = value_change_enclosing_type (arg2, lookup_pointer_type (VALUE_ENCLOSING_TYPE (arg1)));
- /* ... and also the relative position of the subobject in the full object */
- VALUE_POINTED_TO_OFFSET (arg2) = VALUE_EMBEDDED_OFFSET (arg1);
- VALUE_BFD_SECTION (arg2) = VALUE_BFD_SECTION (arg1);
+ full derived object's type ... */
+ arg2 = value_change_enclosing_type (arg2, lookup_pointer_type (value_enclosing_type (arg1)));
+ /* ... and also the relative position of the subobject in the full
+ object. */
+ set_value_pointed_to_offset (arg2, value_embedded_offset (arg1));
+ return arg2;
+}
+
+/* Return a reference value for the object for which ARG1 is the
+ contents. */
+
+struct value *
+value_ref (struct value *arg1)
+{
+ struct value *arg2;
+
+ struct type *type = check_typedef (value_type (arg1));
+ if (TYPE_CODE (type) == TYPE_CODE_REF)
+ return arg1;
+
+ arg2 = value_addr (arg1);
+ deprecated_set_value_type (arg2, lookup_reference_type (type));
return arg2;
}
-/* Given a value of a pointer type, apply the C unary * operator to it. */
+/* Given a value of a pointer type, apply the C unary * operator to
+ it. */
struct value *
value_ind (struct value *arg1)
struct type *base_type;
struct value *arg2;
- COERCE_ARRAY (arg1);
+ arg1 = coerce_array (arg1);
- base_type = check_typedef (VALUE_TYPE (arg1));
-
- if (TYPE_CODE (base_type) == TYPE_CODE_MEMBER)
- error ("not implemented: member types in value_ind");
+ base_type = check_typedef (value_type (arg1));
/* Allow * on an integer so we can cast it to whatever we want.
- This returns an int, which seems like the most C-like thing
- to do. "long long" variables are rare enough that
+ This returns an int, which seems like the most C-like thing to
+ do. "long long" variables are rare enough that
BUILTIN_TYPE_LONGEST would seem to be a mistake. */
if (TYPE_CODE (base_type) == TYPE_CODE_INT)
return value_at_lazy (builtin_type_int,
- (CORE_ADDR) value_as_long (arg1),
- VALUE_BFD_SECTION (arg1));
+ (CORE_ADDR) value_as_address (arg1));
else if (TYPE_CODE (base_type) == TYPE_CODE_PTR)
{
struct type *enc_type;
- /* We may be pointing to something embedded in a larger object */
- /* Get the real type of the enclosing object */
- enc_type = check_typedef (VALUE_ENCLOSING_TYPE (arg1));
+ /* We may be pointing to something embedded in a larger object.
+ Get the real type of the enclosing object. */
+ enc_type = check_typedef (value_enclosing_type (arg1));
enc_type = TYPE_TARGET_TYPE (enc_type);
- /* Retrieve the enclosing object pointed to */
- arg2 = value_at_lazy (enc_type,
- value_as_address (arg1) - VALUE_POINTED_TO_OFFSET (arg1),
- VALUE_BFD_SECTION (arg1));
- /* Re-adjust type */
- VALUE_TYPE (arg2) = TYPE_TARGET_TYPE (base_type);
- /* Add embedding info */
+
+ if (TYPE_CODE (check_typedef (enc_type)) == TYPE_CODE_FUNC
+ || TYPE_CODE (check_typedef (enc_type)) == TYPE_CODE_METHOD)
+ /* For functions, go through find_function_addr, which knows
+ how to handle function descriptors. */
+ arg2 = value_at_lazy (enc_type,
+ find_function_addr (arg1, NULL));
+ else
+ /* Retrieve the enclosing object pointed to */
+ arg2 = value_at_lazy (enc_type,
+ (value_as_address (arg1)
+ - value_pointed_to_offset (arg1)));
+
+ /* Re-adjust type. */
+ deprecated_set_value_type (arg2, TYPE_TARGET_TYPE (base_type));
+ /* Add embedding info. */
arg2 = value_change_enclosing_type (arg2, enc_type);
- VALUE_EMBEDDED_OFFSET (arg2) = VALUE_POINTED_TO_OFFSET (arg1);
+ set_value_embedded_offset (arg2, value_pointed_to_offset (arg1));
- /* We may be pointing to an object of some derived type */
+ /* We may be pointing to an object of some derived type. */
arg2 = value_full_object (arg2, NULL, 0, 0, 0);
return arg2;
}
- error ("Attempt to take contents of a non-pointer value.");
- return 0; /* For lint -- never reached */
+ error (_("Attempt to take contents of a non-pointer value."));
+ return 0; /* For lint -- never reached. */
}
\f
-/* Pushing small parts of stack frames. */
-
-/* Push one word (the size of object that a register holds). */
-
-CORE_ADDR
-push_word (CORE_ADDR sp, ULONGEST word)
-{
- register int len = REGISTER_SIZE;
- char *buffer = alloca (MAX_REGISTER_RAW_SIZE);
-
- store_unsigned_integer (buffer, len, word);
- if (INNER_THAN (1, 2))
- {
- /* stack grows downward */
- sp -= len;
- write_memory (sp, buffer, len);
- }
- else
- {
- /* stack grows upward */
- write_memory (sp, buffer, len);
- sp += len;
- }
-
- return sp;
-}
-
-/* Push LEN bytes with data at BUFFER. */
-
-CORE_ADDR
-push_bytes (CORE_ADDR sp, char *buffer, int len)
-{
- if (INNER_THAN (1, 2))
- {
- /* stack grows downward */
- sp -= len;
- write_memory (sp, buffer, len);
- }
- else
- {
- /* stack grows upward */
- write_memory (sp, buffer, len);
- sp += len;
- }
-
- return sp;
-}
-
-#ifndef PARM_BOUNDARY
-#define PARM_BOUNDARY (0)
-#endif
+/* Create a value for an array by allocating space in the inferior,
+ copying the data into that space, and then setting up an array
+ value.
-/* Push onto the stack the specified value VALUE. Pad it correctly for
- it to be an argument to a function. */
-
-static CORE_ADDR
-value_push (register CORE_ADDR sp, struct value *arg)
-{
- register int len = TYPE_LENGTH (VALUE_ENCLOSING_TYPE (arg));
- register int container_len = len;
- register int offset;
-
- /* How big is the container we're going to put this value in? */
- if (PARM_BOUNDARY)
- container_len = ((len + PARM_BOUNDARY / TARGET_CHAR_BIT - 1)
- & ~(PARM_BOUNDARY / TARGET_CHAR_BIT - 1));
-
- /* Are we going to put it at the high or low end of the container? */
- if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
- offset = container_len - len;
- else
- offset = 0;
-
- if (INNER_THAN (1, 2))
- {
- /* stack grows downward */
- sp -= container_len;
- write_memory (sp + offset, VALUE_CONTENTS_ALL (arg), len);
- }
- else
- {
- /* stack grows upward */
- write_memory (sp + offset, VALUE_CONTENTS_ALL (arg), len);
- sp += container_len;
- }
-
- return sp;
-}
-
-CORE_ADDR
-default_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
- int struct_return, CORE_ADDR struct_addr)
-{
- /* ASSERT ( !struct_return); */
- int i;
- for (i = nargs - 1; i >= 0; i--)
- sp = value_push (sp, args[i]);
- return sp;
-}
-
-/* Perform the standard coercions that are specified
- for arguments to be passed to C functions.
-
- If PARAM_TYPE is non-NULL, it is the expected parameter type.
- IS_PROTOTYPED is non-zero if the function declaration is prototyped. */
-
-static struct value *
-value_arg_coerce (struct value *arg, struct type *param_type,
- int is_prototyped)
-{
- register struct type *arg_type = check_typedef (VALUE_TYPE (arg));
- register struct type *type
- = param_type ? check_typedef (param_type) : arg_type;
-
- switch (TYPE_CODE (type))
- {
- case TYPE_CODE_REF:
- if (TYPE_CODE (arg_type) != TYPE_CODE_REF
- && TYPE_CODE (arg_type) != TYPE_CODE_PTR)
- {
- arg = value_addr (arg);
- VALUE_TYPE (arg) = param_type;
- return arg;
- }
- break;
- case TYPE_CODE_INT:
- case TYPE_CODE_CHAR:
- case TYPE_CODE_BOOL:
- case TYPE_CODE_ENUM:
- /* If we don't have a prototype, coerce to integer type if necessary. */
- if (!is_prototyped)
- {
- if (TYPE_LENGTH (type) < TYPE_LENGTH (builtin_type_int))
- type = builtin_type_int;
- }
- /* Currently all target ABIs require at least the width of an integer
- type for an argument. We may have to conditionalize the following
- type coercion for future targets. */
- if (TYPE_LENGTH (type) < TYPE_LENGTH (builtin_type_int))
- type = builtin_type_int;
- break;
- case TYPE_CODE_FLT:
- if (!is_prototyped && coerce_float_to_double)
- {
- if (TYPE_LENGTH (type) < TYPE_LENGTH (builtin_type_double))
- type = builtin_type_double;
- else if (TYPE_LENGTH (type) > TYPE_LENGTH (builtin_type_double))
- type = builtin_type_long_double;
- }
- break;
- case TYPE_CODE_FUNC:
- type = lookup_pointer_type (type);
- break;
- case TYPE_CODE_ARRAY:
- /* Arrays are coerced to pointers to their first element, unless
- they are vectors, in which case we want to leave them alone,
- because they are passed by value. */
- if (current_language->c_style_arrays)
- if (!TYPE_VECTOR (type))
- type = lookup_pointer_type (TYPE_TARGET_TYPE (type));
- break;
- case TYPE_CODE_UNDEF:
- case TYPE_CODE_PTR:
- case TYPE_CODE_STRUCT:
- case TYPE_CODE_UNION:
- case TYPE_CODE_VOID:
- case TYPE_CODE_SET:
- case TYPE_CODE_RANGE:
- case TYPE_CODE_STRING:
- case TYPE_CODE_BITSTRING:
- case TYPE_CODE_ERROR:
- case TYPE_CODE_MEMBER:
- case TYPE_CODE_METHOD:
- case TYPE_CODE_COMPLEX:
- default:
- break;
- }
-
- return value_cast (type, arg);
-}
-
-/* Determine a function's address and its return type from its value.
- Calls error() if the function is not valid for calling. */
-
-static CORE_ADDR
-find_function_addr (struct value *function, struct type **retval_type)
-{
- register struct type *ftype = check_typedef (VALUE_TYPE (function));
- register enum type_code code = TYPE_CODE (ftype);
- struct type *value_type;
- CORE_ADDR funaddr;
-
- /* If it's a member function, just look at the function
- part of it. */
-
- /* Determine address to call. */
- if (code == TYPE_CODE_FUNC || code == TYPE_CODE_METHOD)
- {
- funaddr = VALUE_ADDRESS (function);
- value_type = TYPE_TARGET_TYPE (ftype);
- }
- else if (code == TYPE_CODE_PTR)
- {
- funaddr = value_as_address (function);
- ftype = check_typedef (TYPE_TARGET_TYPE (ftype));
- if (TYPE_CODE (ftype) == TYPE_CODE_FUNC
- || TYPE_CODE (ftype) == TYPE_CODE_METHOD)
- {
- funaddr = CONVERT_FROM_FUNC_PTR_ADDR (funaddr);
- value_type = TYPE_TARGET_TYPE (ftype);
- }
- else
- value_type = builtin_type_int;
- }
- else if (code == TYPE_CODE_INT)
- {
- /* Handle the case of functions lacking debugging info.
- Their values are characters since their addresses are char */
- if (TYPE_LENGTH (ftype) == 1)
- funaddr = value_as_address (value_addr (function));
- else
- /* Handle integer used as address of a function. */
- funaddr = (CORE_ADDR) value_as_long (function);
-
- value_type = builtin_type_int;
- }
- else
- error ("Invalid data type for function to be called.");
-
- *retval_type = value_type;
- return funaddr;
-}
-
-/* All this stuff with a dummy frame may seem unnecessarily complicated
- (why not just save registers in GDB?). The purpose of pushing a dummy
- frame which looks just like a real frame is so that if you call a
- function and then hit a breakpoint (get a signal, etc), "backtrace"
- will look right. Whether the backtrace needs to actually show the
- stack at the time the inferior function was called is debatable, but
- it certainly needs to not display garbage. So if you are contemplating
- making dummy frames be different from normal frames, consider that. */
-
-/* Perform a function call in the inferior.
- ARGS is a vector of values of arguments (NARGS of them).
- FUNCTION is a value, the function to be called.
- Returns a value representing what the function returned.
- May fail to return, if a breakpoint or signal is hit
- during the execution of the function.
-
- ARGS is modified to contain coerced values. */
-
-static struct value *
-hand_function_call (struct value *function, int nargs, struct value **args)
-{
- register CORE_ADDR sp;
- register int i;
- int rc;
- CORE_ADDR start_sp;
- /* CALL_DUMMY is an array of words (REGISTER_SIZE), but each word
- is in host byte order. Before calling FIX_CALL_DUMMY, we byteswap it
- and remove any extra bytes which might exist because ULONGEST is
- bigger than REGISTER_SIZE.
-
- NOTE: This is pretty wierd, as the call dummy is actually a
- sequence of instructions. But CISC machines will have
- to pack the instructions into REGISTER_SIZE units (and
- so will RISC machines for which INSTRUCTION_SIZE is not
- REGISTER_SIZE).
-
- NOTE: This is pretty stupid. CALL_DUMMY should be in strict
- target byte order. */
-
- static ULONGEST *dummy;
- int sizeof_dummy1;
- char *dummy1;
- CORE_ADDR old_sp;
- struct type *value_type;
- unsigned char struct_return;
- CORE_ADDR struct_addr = 0;
- struct regcache *retbuf;
- struct cleanup *retbuf_cleanup;
- struct inferior_status *inf_status;
- struct cleanup *inf_status_cleanup;
- CORE_ADDR funaddr;
- int using_gcc; /* Set to version of gcc in use, or zero if not gcc */
- CORE_ADDR real_pc;
- struct type *param_type = NULL;
- struct type *ftype = check_typedef (SYMBOL_TYPE (function));
- int n_method_args = 0;
-
- dummy = alloca (SIZEOF_CALL_DUMMY_WORDS);
- sizeof_dummy1 = REGISTER_SIZE * SIZEOF_CALL_DUMMY_WORDS / sizeof (ULONGEST);
- dummy1 = alloca (sizeof_dummy1);
- memcpy (dummy, CALL_DUMMY_WORDS, SIZEOF_CALL_DUMMY_WORDS);
-
- if (!target_has_execution)
- noprocess ();
-
- /* Create a cleanup chain that contains the retbuf (buffer
- containing the register values). This chain is create BEFORE the
- inf_status chain so that the inferior status can cleaned up
- (restored or discarded) without having the retbuf freed. */
- retbuf = regcache_xmalloc (current_gdbarch);
- retbuf_cleanup = make_cleanup_regcache_xfree (retbuf);
-
- /* A cleanup for the inferior status. Create this AFTER the retbuf
- so that this can be discarded or applied without interfering with
- the regbuf. */
- inf_status = save_inferior_status (1);
- inf_status_cleanup = make_cleanup_restore_inferior_status (inf_status);
-
- if (DEPRECATED_PUSH_DUMMY_FRAME_P ())
- {
- /* DEPRECATED_PUSH_DUMMY_FRAME is responsible for saving the
- inferior registers (and frame_pop() for restoring them). (At
- least on most machines) they are saved on the stack in the
- inferior. */
- DEPRECATED_PUSH_DUMMY_FRAME;
- }
- else
- {
- /* FIXME: cagney/2003-02-26: Step zero of this little tinker is
- to extract the generic dummy frame code from the architecture
- vector. Hence this direct call.
-
- A follow-on change is to modify this interface so that it takes
- thread OR frame OR tpid as a parameter, and returns a dummy
- frame handle. The handle can then be used further down as a
- parameter SAVE_DUMMY_FRAME_TOS. Hmm, thinking about it, since
- everything is ment to be using generic dummy frames, why not
- even use some of the dummy frame code to here - do a regcache
- dup and then pass the duped regcache, along with all the other
- stuff, at one single point.
-
- In fact, you can even save the structure's return address in the
- dummy frame and fix one of those nasty lost struct return edge
- conditions. */
- generic_push_dummy_frame ();
- }
-
- old_sp = read_sp ();
-
- /* Ensure that the initial SP is correctly aligned. */
- if (gdbarch_frame_align_p (current_gdbarch))
- {
- /* NOTE: cagney/2002-09-18:
-
- On a RISC architecture, a void parameterless generic dummy
- frame (i.e., no parameters, no result) typically does not
- need to push anything the stack and hence can leave SP and
- FP. Similarly, a framelss (possibly leaf) function does not
- push anything on the stack and, hence, that too can leave FP
- and SP unchanged. As a consequence, a sequence of void
- parameterless generic dummy frame calls to frameless
- functions will create a sequence of effectively identical
- frames (SP, FP and TOS and PC the same). This, not
- suprisingly, results in what appears to be a stack in an
- infinite loop --- when GDB tries to find a generic dummy
- frame on the internal dummy frame stack, it will always find
- the first one.
-
- To avoid this problem, the code below always grows the stack.
- That way, two dummy frames can never be identical. It does
- burn a few bytes of stack but that is a small price to pay
- :-). */
- sp = gdbarch_frame_align (current_gdbarch, old_sp);
- if (sp == old_sp)
- {
- if (INNER_THAN (1, 2))
- /* Stack grows down. */
- sp = gdbarch_frame_align (current_gdbarch, old_sp - 1);
- else
- /* Stack grows up. */
- sp = gdbarch_frame_align (current_gdbarch, old_sp + 1);
- }
- gdb_assert ((INNER_THAN (1, 2) && sp <= old_sp)
- || (INNER_THAN (2, 1) && sp >= old_sp));
- }
- else
- /* FIXME: cagney/2002-09-18: Hey, you loose! Who knows how badly
- aligned the SP is! Further, per comment above, if the generic
- dummy frame ends up empty (because nothing is pushed) GDB won't
- be able to correctly perform back traces. If a target is
- having trouble with backtraces, first thing to do is add
- FRAME_ALIGN() to its architecture vector. After that, try
- adding SAVE_DUMMY_FRAME_TOS() and modifying
- DEPRECATED_FRAME_CHAIN so that when the next outer frame is a
- generic dummy, it returns the current frame's base. */
- sp = old_sp;
-
- if (INNER_THAN (1, 2))
- {
- /* Stack grows down */
- sp -= sizeof_dummy1;
- start_sp = sp;
- }
- else
- {
- /* Stack grows up */
- start_sp = sp;
- sp += sizeof_dummy1;
- }
-
- /* NOTE: cagney/2002-09-10: Don't bother re-adjusting the stack
- after allocating space for the call dummy. A target can specify
- a SIZEOF_DUMMY1 (via SIZEOF_CALL_DUMMY_WORDS) such that all local
- alignment requirements are met. */
-
- funaddr = find_function_addr (function, &value_type);
- CHECK_TYPEDEF (value_type);
-
- {
- struct block *b = block_for_pc (funaddr);
- /* If compiled without -g, assume GCC 2. */
- using_gcc = (b == NULL ? 2 : BLOCK_GCC_COMPILED (b));
- }
-
- /* Are we returning a value using a structure return or a normal
- value return? */
-
- struct_return = using_struct_return (function, funaddr, value_type,
- using_gcc);
-
- /* Create a call sequence customized for this function
- and the number of arguments for it. */
- for (i = 0; i < (int) (SIZEOF_CALL_DUMMY_WORDS / sizeof (dummy[0])); i++)
- store_unsigned_integer (&dummy1[i * REGISTER_SIZE],
- REGISTER_SIZE,
- (ULONGEST) dummy[i]);
-
-#ifdef GDB_TARGET_IS_HPPA
- real_pc = FIX_CALL_DUMMY (dummy1, start_sp, funaddr, nargs, args,
- value_type, using_gcc);
-#else
- FIX_CALL_DUMMY (dummy1, start_sp, funaddr, nargs, args,
- value_type, using_gcc);
- real_pc = start_sp;
-#endif
-
- if (CALL_DUMMY_LOCATION == ON_STACK)
- {
- write_memory (start_sp, (char *) dummy1, sizeof_dummy1);
- if (DEPRECATED_USE_GENERIC_DUMMY_FRAMES)
- generic_save_call_dummy_addr (start_sp, start_sp + sizeof_dummy1);
- }
-
- if (CALL_DUMMY_LOCATION == AT_ENTRY_POINT)
- {
- real_pc = funaddr;
- if (DEPRECATED_USE_GENERIC_DUMMY_FRAMES)
- /* NOTE: cagney/2002-04-13: The entry point is going to be
- modified with a single breakpoint. */
- generic_save_call_dummy_addr (CALL_DUMMY_ADDRESS (),
- CALL_DUMMY_ADDRESS () + 1);
- }
-
-#ifdef lint
- sp = old_sp; /* It really is used, for some ifdef's... */
-#endif
-
- if (nargs < TYPE_NFIELDS (ftype))
- error ("too few arguments in function call");
-
- for (i = nargs - 1; i >= 0; i--)
- {
- int prototyped;
-
- /* FIXME drow/2002-05-31: Should just always mark methods as
- prototyped. Can we respect TYPE_VARARGS? Probably not. */
- if (TYPE_CODE (ftype) == TYPE_CODE_METHOD)
- prototyped = 1;
- else
- prototyped = TYPE_PROTOTYPED (ftype);
-
- if (i < TYPE_NFIELDS (ftype))
- args[i] = value_arg_coerce (args[i], TYPE_FIELD_TYPE (ftype, i),
- prototyped);
- else
- args[i] = value_arg_coerce (args[i], NULL, 0);
-
- /*elz: this code is to handle the case in which the function to be called
- has a pointer to function as parameter and the corresponding actual argument
- is the address of a function and not a pointer to function variable.
- In aCC compiled code, the calls through pointers to functions (in the body
- of the function called by hand) are made via $$dyncall_external which
- requires some registers setting, this is taken care of if we call
- via a function pointer variable, but not via a function address.
- In cc this is not a problem. */
-
- if (using_gcc == 0)
- if (param_type && TYPE_CODE (ftype) != TYPE_CODE_METHOD)
- /* if this parameter is a pointer to function */
- if (TYPE_CODE (param_type) == TYPE_CODE_PTR)
- if (TYPE_CODE (TYPE_TARGET_TYPE (param_type)) == TYPE_CODE_FUNC)
- /* elz: FIXME here should go the test about the compiler used
- to compile the target. We want to issue the error
- message only if the compiler used was HP's aCC.
- If we used HP's cc, then there is no problem and no need
- to return at this point */
- if (using_gcc == 0) /* && compiler == aCC */
- /* go see if the actual parameter is a variable of type
- pointer to function or just a function */
- if (args[i]->lval == not_lval)
- {
- char *arg_name;
- if (find_pc_partial_function ((CORE_ADDR) args[i]->aligner.contents[0], &arg_name, NULL, NULL))
- error ("\
-You cannot use function <%s> as argument. \n\
-You must use a pointer to function type variable. Command ignored.", arg_name);
- }
- }
-
- if (REG_STRUCT_HAS_ADDR_P ())
- {
- /* This is a machine like the sparc, where we may need to pass a
- pointer to the structure, not the structure itself. */
- for (i = nargs - 1; i >= 0; i--)
- {
- struct type *arg_type = check_typedef (VALUE_TYPE (args[i]));
- if ((TYPE_CODE (arg_type) == TYPE_CODE_STRUCT
- || TYPE_CODE (arg_type) == TYPE_CODE_UNION
- || TYPE_CODE (arg_type) == TYPE_CODE_ARRAY
- || TYPE_CODE (arg_type) == TYPE_CODE_STRING
- || TYPE_CODE (arg_type) == TYPE_CODE_BITSTRING
- || TYPE_CODE (arg_type) == TYPE_CODE_SET
- || (TYPE_CODE (arg_type) == TYPE_CODE_FLT
- && TYPE_LENGTH (arg_type) > 8)
- )
- && REG_STRUCT_HAS_ADDR (using_gcc, arg_type))
- {
- CORE_ADDR addr;
- int len; /* = TYPE_LENGTH (arg_type); */
- int aligned_len;
- arg_type = check_typedef (VALUE_ENCLOSING_TYPE (args[i]));
- len = TYPE_LENGTH (arg_type);
-
- if (STACK_ALIGN_P ())
- /* MVS 11/22/96: I think at least some of this
- stack_align code is really broken. Better to let
- PUSH_ARGUMENTS adjust the stack in a target-defined
- manner. */
- aligned_len = STACK_ALIGN (len);
- else
- aligned_len = len;
- if (INNER_THAN (1, 2))
- {
- /* stack grows downward */
- sp -= aligned_len;
- /* ... so the address of the thing we push is the
- stack pointer after we push it. */
- addr = sp;
- }
- else
- {
- /* The stack grows up, so the address of the thing
- we push is the stack pointer before we push it. */
- addr = sp;
- sp += aligned_len;
- }
- /* Push the structure. */
- write_memory (addr, VALUE_CONTENTS_ALL (args[i]), len);
- /* The value we're going to pass is the address of the
- thing we just pushed. */
- /*args[i] = value_from_longest (lookup_pointer_type (value_type),
- (LONGEST) addr); */
- args[i] = value_from_pointer (lookup_pointer_type (arg_type),
- addr);
- }
- }
- }
-
-
- /* Reserve space for the return structure to be written on the
- stack, if necessary. Make certain that the value is correctly
- aligned. */
-
- if (struct_return)
- {
- int len = TYPE_LENGTH (value_type);
- if (STACK_ALIGN_P ())
- /* MVS 11/22/96: I think at least some of this stack_align
- code is really broken. Better to let PUSH_ARGUMENTS adjust
- the stack in a target-defined manner. */
- len = STACK_ALIGN (len);
- if (INNER_THAN (1, 2))
- {
- /* Stack grows downward. Align STRUCT_ADDR and SP after
- making space for the return value. */
- sp -= len;
- if (gdbarch_frame_align_p (current_gdbarch))
- sp = gdbarch_frame_align (current_gdbarch, sp);
- struct_addr = sp;
- }
- else
- {
- /* Stack grows upward. Align the frame, allocate space, and
- then again, re-align the frame??? */
- if (gdbarch_frame_align_p (current_gdbarch))
- sp = gdbarch_frame_align (current_gdbarch, sp);
- struct_addr = sp;
- sp += len;
- if (gdbarch_frame_align_p (current_gdbarch))
- sp = gdbarch_frame_align (current_gdbarch, sp);
- }
- }
-
- /* elz: on HPPA no need for this extra alignment, maybe it is needed
- on other architectures. This is because all the alignment is
- taken care of in the above code (ifdef REG_STRUCT_HAS_ADDR) and
- in hppa_push_arguments */
- if (EXTRA_STACK_ALIGNMENT_NEEDED)
- {
- /* MVS 11/22/96: I think at least some of this stack_align code
- is really broken. Better to let PUSH_ARGUMENTS adjust the
- stack in a target-defined manner. */
- if (STACK_ALIGN_P () && INNER_THAN (1, 2))
- {
- /* If stack grows down, we must leave a hole at the top. */
- int len = 0;
-
- for (i = nargs - 1; i >= 0; i--)
- len += TYPE_LENGTH (VALUE_ENCLOSING_TYPE (args[i]));
- if (CALL_DUMMY_STACK_ADJUST_P)
- len += CALL_DUMMY_STACK_ADJUST;
- sp -= STACK_ALIGN (len) - len;
- }
- }
-
- sp = PUSH_ARGUMENTS (nargs, args, sp, struct_return, struct_addr);
-
- if (PUSH_RETURN_ADDRESS_P ())
- /* for targets that use no CALL_DUMMY */
- /* There are a number of targets now which actually don't write
- any CALL_DUMMY instructions into the target, but instead just
- save the machine state, push the arguments, and jump directly
- to the callee function. Since this doesn't actually involve
- executing a JSR/BSR instruction, the return address must be set
- up by hand, either by pushing onto the stack or copying into a
- return-address register as appropriate. Formerly this has been
- done in PUSH_ARGUMENTS, but that's overloading its
- functionality a bit, so I'm making it explicit to do it here. */
- sp = PUSH_RETURN_ADDRESS (real_pc, sp);
-
- if (STACK_ALIGN_P () && !INNER_THAN (1, 2))
- {
- /* If stack grows up, we must leave a hole at the bottom, note
- that sp already has been advanced for the arguments! */
- if (CALL_DUMMY_STACK_ADJUST_P)
- sp += CALL_DUMMY_STACK_ADJUST;
- sp = STACK_ALIGN (sp);
- }
-
-/* XXX This seems wrong. For stacks that grow down we shouldn't do
- anything here! */
- /* MVS 11/22/96: I think at least some of this stack_align code is
- really broken. Better to let PUSH_ARGUMENTS adjust the stack in
- a target-defined manner. */
- if (CALL_DUMMY_STACK_ADJUST_P)
- if (INNER_THAN (1, 2))
- {
- /* stack grows downward */
- sp -= CALL_DUMMY_STACK_ADJUST;
- }
-
- /* Store the address at which the structure is supposed to be
- written. Note that this (and the code which reserved the space
- above) assumes that gcc was used to compile this function. Since
- it doesn't cost us anything but space and if the function is pcc
- it will ignore this value, we will make that assumption.
-
- Also note that on some machines (like the sparc) pcc uses a
- convention like gcc's. */
-
- if (struct_return)
- STORE_STRUCT_RETURN (struct_addr, sp);
-
- /* Write the stack pointer. This is here because the statements above
- might fool with it. On SPARC, this write also stores the register
- window into the right place in the new stack frame, which otherwise
- wouldn't happen. (See store_inferior_registers in sparc-nat.c.) */
- write_sp (sp);
-
- if (SAVE_DUMMY_FRAME_TOS_P ())
- SAVE_DUMMY_FRAME_TOS (sp);
-
- {
- char *name;
- struct symbol *symbol;
-
- name = NULL;
- symbol = find_pc_function (funaddr);
- if (symbol)
- {
- name = SYMBOL_PRINT_NAME (symbol);
- }
- else
- {
- /* Try the minimal symbols. */
- struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (funaddr);
-
- if (msymbol)
- {
- name = SYMBOL_PRINT_NAME (msymbol);
- }
- }
- if (name == NULL)
- {
- char format[80];
- sprintf (format, "at %s", local_hex_format ());
- name = alloca (80);
- /* FIXME-32x64: assumes funaddr fits in a long. */
- sprintf (name, format, (unsigned long) funaddr);
- }
-
- /* Execute the stack dummy routine, calling FUNCTION.
- When it is done, discard the empty frame
- after storing the contents of all regs into retbuf. */
- rc = run_stack_dummy (real_pc + CALL_DUMMY_START_OFFSET, retbuf);
-
- if (rc == 1)
- {
- /* We stopped inside the FUNCTION because of a random signal.
- Further execution of the FUNCTION is not allowed. */
-
- if (unwind_on_signal_p)
- {
- /* The user wants the context restored. */
-
- /* We must get back to the frame we were before the dummy
- call. */
- frame_pop (get_current_frame ());
-
- /* FIXME: Insert a bunch of wrap_here; name can be very long if it's
- a C++ name with arguments and stuff. */
- error ("\
-The program being debugged was signaled while in a function called from GDB.\n\
-GDB has restored the context to what it was before the call.\n\
-To change this behavior use \"set unwindonsignal off\"\n\
-Evaluation of the expression containing the function (%s) will be abandoned.",
- name);
- }
- else
- {
- /* The user wants to stay in the frame where we stopped (default).*/
-
- /* If we restored the inferior status (via the cleanup),
- we would print a spurious error message (Unable to
- restore previously selected frame), would write the
- registers from the inf_status (which is wrong), and
- would do other wrong things. */
- discard_cleanups (inf_status_cleanup);
- discard_inferior_status (inf_status);
-
- /* FIXME: Insert a bunch of wrap_here; name can be very long if it's
- a C++ name with arguments and stuff. */
- error ("\
-The program being debugged was signaled while in a function called from GDB.\n\
-GDB remains in the frame where the signal was received.\n\
-To change this behavior use \"set unwindonsignal on\"\n\
-Evaluation of the expression containing the function (%s) will be abandoned.",
- name);
- }
- }
-
- if (rc == 2)
- {
- /* We hit a breakpoint inside the FUNCTION. */
-
- /* If we restored the inferior status (via the cleanup), we
- would print a spurious error message (Unable to restore
- previously selected frame), would write the registers from
- the inf_status (which is wrong), and would do other wrong
- things. */
- discard_cleanups (inf_status_cleanup);
- discard_inferior_status (inf_status);
-
- /* The following error message used to say "The expression
- which contained the function call has been discarded." It
- is a hard concept to explain in a few words. Ideally, GDB
- would be able to resume evaluation of the expression when
- the function finally is done executing. Perhaps someday
- this will be implemented (it would not be easy). */
-
- /* FIXME: Insert a bunch of wrap_here; name can be very long if it's
- a C++ name with arguments and stuff. */
- error ("\
-The program being debugged stopped while in a function called from GDB.\n\
-When the function (%s) is done executing, GDB will silently\n\
-stop (instead of continuing to evaluate the expression containing\n\
-the function call).", name);
- }
-
- /* If we get here the called FUNCTION run to completion. */
-
- /* Restore the inferior status, via its cleanup. At this stage,
- leave the RETBUF alone. */
- do_cleanups (inf_status_cleanup);
-
- /* Figure out the value returned by the function. */
- /* elz: I defined this new macro for the hppa architecture only.
- this gives us a way to get the value returned by the function
- from the stack, at the same address we told the function to put
- it. We cannot assume on the pa that r28 still contains the
- address of the returned structure. Usually this will be
- overwritten by the callee. I don't know about other
- architectures, so I defined this macro */
-#ifdef VALUE_RETURNED_FROM_STACK
- if (struct_return)
- {
- do_cleanups (retbuf_cleanup);
- return VALUE_RETURNED_FROM_STACK (value_type, struct_addr);
- }
-#endif
- /* NOTE: cagney/2002-09-10: Only when the stack has been correctly
- aligned (using frame_align()) do we can trust STRUCT_ADDR and
- fetch the return value direct from the stack. This lack of
- trust comes about because legacy targets have a nasty habit of
- silently, and local to PUSH_ARGUMENTS(), moving STRUCT_ADDR.
- For such targets, just hope that value_being_returned() can
- find the adjusted value. */
- if (struct_return && gdbarch_frame_align_p (current_gdbarch))
- {
- struct value *retval = value_at (value_type, struct_addr, NULL);
- do_cleanups (retbuf_cleanup);
- return retval;
- }
- else
- {
- struct value *retval = value_being_returned (value_type, retbuf,
- struct_return);
- do_cleanups (retbuf_cleanup);
- return retval;
- }
- }
-}
-
-struct value *
-call_function_by_hand (struct value *function, int nargs, struct value **args)
-{
- if (CALL_DUMMY_P)
- {
- return hand_function_call (function, nargs, args);
- }
- else
- {
- error ("Cannot invoke functions on this machine.");
- }
-}
-\f
-
-
-/* Create a value for an array by allocating space in the inferior, copying
- the data into that space, and then setting up an array value.
-
- The array bounds are set from LOWBOUND and HIGHBOUND, and the array is
- populated from the values passed in ELEMVEC.
+ The array bounds are set from LOWBOUND and HIGHBOUND, and the array
+ is populated from the values passed in ELEMVEC.
The element type of the array is inherited from the type of the
first element, and all elements must have the same size (though we
- don't currently enforce any restriction on their types). */
+ don't currently enforce any restriction on their types). */
struct value *
value_array (int lowbound, int highbound, struct value **elemvec)
struct type *arraytype;
CORE_ADDR addr;
- /* Validate that the bounds are reasonable and that each of the elements
- have the same size. */
+ /* Validate that the bounds are reasonable and that each of the
+ elements have the same size. */
nelem = highbound - lowbound + 1;
if (nelem <= 0)
{
- error ("bad array bounds (%d, %d)", lowbound, highbound);
+ error (_("bad array bounds (%d, %d)"), lowbound, highbound);
}
- typelength = TYPE_LENGTH (VALUE_ENCLOSING_TYPE (elemvec[0]));
+ typelength = TYPE_LENGTH (value_enclosing_type (elemvec[0]));
for (idx = 1; idx < nelem; idx++)
{
- if (TYPE_LENGTH (VALUE_ENCLOSING_TYPE (elemvec[idx])) != typelength)
+ if (TYPE_LENGTH (value_enclosing_type (elemvec[idx])) != typelength)
{
- error ("array elements must all be the same size");
+ error (_("array elements must all be the same size"));
}
}
- rangetype = create_range_type ((struct type *) NULL, builtin_type_int,
+ rangetype = create_range_type ((struct type *) NULL,
+ builtin_type_int,
lowbound, highbound);
arraytype = create_array_type ((struct type *) NULL,
- VALUE_ENCLOSING_TYPE (elemvec[0]), rangetype);
+ value_enclosing_type (elemvec[0]),
+ rangetype);
if (!current_language->c_style_arrays)
{
val = allocate_value (arraytype);
for (idx = 0; idx < nelem; idx++)
{
- memcpy (VALUE_CONTENTS_ALL_RAW (val) + (idx * typelength),
- VALUE_CONTENTS_ALL (elemvec[idx]),
+ memcpy (value_contents_all_raw (val) + (idx * typelength),
+ value_contents_all (elemvec[idx]),
typelength);
}
- VALUE_BFD_SECTION (val) = VALUE_BFD_SECTION (elemvec[0]);
return val;
}
- /* Allocate space to store the array in the inferior, and then initialize
- it by copying in each element. FIXME: Is it worth it to create a
- local buffer in which to collect each value and then write all the
- bytes in one operation? */
+ /* Allocate space to store the array in the inferior, and then
+ initialize it by copying in each element. FIXME: Is it worth it
+ to create a local buffer in which to collect each value and then
+ write all the bytes in one operation? */
addr = allocate_space_in_inferior (nelem * typelength);
for (idx = 0; idx < nelem; idx++)
{
- write_memory (addr + (idx * typelength), VALUE_CONTENTS_ALL (elemvec[idx]),
+ write_memory (addr + (idx * typelength),
+ value_contents_all (elemvec[idx]),
typelength);
}
- /* Create the array type and set up an array value to be evaluated lazily. */
+ /* Create the array type and set up an array value to be evaluated
+ lazily. */
- val = value_at_lazy (arraytype, addr, VALUE_BFD_SECTION (elemvec[0]));
+ val = value_at_lazy (arraytype, addr);
return (val);
}
-/* Create a value for a string constant by allocating space in the inferior,
- copying the data into that space, and returning the address with type
- TYPE_CODE_STRING. PTR points to the string constant data; LEN is number
- of characters.
- Note that string types are like array of char types with a lower bound of
- zero and an upper bound of LEN - 1. Also note that the string may contain
- embedded null bytes. */
+/* Create a value for a string constant by allocating space in the
+ inferior, copying the data into that space, and returning the
+ address with type TYPE_CODE_STRING. PTR points to the string
+ constant data; LEN is number of characters.
+
+ Note that string types are like array of char types with a lower
+ bound of zero and an upper bound of LEN - 1. Also note that the
+ string may contain embedded null bytes. */
struct value *
value_string (char *ptr, int len)
int lowbound = current_language->string_lower_bound;
struct type *rangetype = create_range_type ((struct type *) NULL,
builtin_type_int,
- lowbound, len + lowbound - 1);
+ lowbound,
+ len + lowbound - 1);
struct type *stringtype
- = create_string_type ((struct type *) NULL, rangetype);
+ = create_string_type ((struct type *) NULL, rangetype);
CORE_ADDR addr;
if (current_language->c_style_arrays == 0)
{
val = allocate_value (stringtype);
- memcpy (VALUE_CONTENTS_RAW (val), ptr, len);
+ memcpy (value_contents_raw (val), ptr, len);
return val;
}
- /* Allocate space to store the string in the inferior, and then
- copy LEN bytes from PTR in gdb to that address in the inferior. */
+ /* Allocate space to store the string in the inferior, and then copy
+ LEN bytes from PTR in gdb to that address in the inferior. */
addr = allocate_space_in_inferior (len);
- write_memory (addr, ptr, len);
+ write_memory (addr, (gdb_byte *) ptr, len);
- val = value_at_lazy (stringtype, addr, NULL);
+ val = value_at_lazy (stringtype, addr);
return (val);
}
value_bitstring (char *ptr, int len)
{
struct value *val;
- struct type *domain_type = create_range_type (NULL, builtin_type_int,
+ struct type *domain_type = create_range_type (NULL,
+ builtin_type_int,
0, len - 1);
- struct type *type = create_set_type ((struct type *) NULL, domain_type);
+ struct type *type = create_set_type ((struct type *) NULL,
+ domain_type);
TYPE_CODE (type) = TYPE_CODE_BITSTRING;
val = allocate_value (type);
- memcpy (VALUE_CONTENTS_RAW (val), ptr, TYPE_LENGTH (type));
+ memcpy (value_contents_raw (val), ptr, TYPE_LENGTH (type));
return val;
}
\f
-/* See if we can pass arguments in T2 to a function which takes arguments
- of types T1. T1 is a list of NARGS arguments, and T2 is a NULL-terminated
- vector. If some arguments need coercion of some sort, then the coerced
- values are written into T2. Return value is 0 if the arguments could be
- matched, or the position at which they differ if not.
+/* See if we can pass arguments in T2 to a function which takes
+ arguments of types T1. T1 is a list of NARGS arguments, and T2 is
+ a NULL-terminated vector. If some arguments need coercion of some
+ sort, then the coerced values are written into T2. Return value is
+ 0 if the arguments could be matched, or the position at which they
+ differ if not.
- STATICP is nonzero if the T1 argument list came from a
- static member function. T2 will still include the ``this'' pointer,
- but it will be skipped.
+ STATICP is nonzero if the T1 argument list came from a static
+ member function. T2 will still include the ``this'' pointer, but
+ it will be skipped.
For non-static member functions, we ignore the first argument,
- which is the type of the instance variable. This is because we want
- to handle calls with objects from derived classes. This is not
- entirely correct: we should actually check to make sure that a
+ which is the type of the instance variable. This is because we
+ want to handle calls with objects from derived classes. This is
+ not entirely correct: we should actually check to make sure that a
requested operation is type secure, shouldn't we? FIXME. */
static int
int i;
if (t2 == 0)
- internal_error (__FILE__, __LINE__, "typecmp: no argument list");
+ internal_error (__FILE__, __LINE__,
+ _("typecmp: no argument list"));
- /* Skip ``this'' argument if applicable. T2 will always include THIS. */
+ /* Skip ``this'' argument if applicable. T2 will always include
+ THIS. */
if (staticp)
t2 ++;
return i + 1;
tt1 = check_typedef (t1[i].type);
- tt2 = check_typedef (VALUE_TYPE (t2[i]));
+ tt2 = check_typedef (value_type (t2[i]));
if (TYPE_CODE (tt1) == TYPE_CODE_REF
/* We should be doing hairy argument matching, as below. */
if (TYPE_CODE (tt2) == TYPE_CODE_ARRAY)
t2[i] = value_coerce_array (t2[i]);
else
- t2[i] = value_addr (t2[i]);
+ t2[i] = value_ref (t2[i]);
continue;
}
we need to do this so you can take something like a map<const
char *>, and properly access map["hello"], because the
argument to [] will be a reference to a pointer to a char,
- and the argument will be a pointer to a char. */
- while ( TYPE_CODE(tt1) == TYPE_CODE_REF ||
- TYPE_CODE (tt1) == TYPE_CODE_PTR)
+ and the argument will be a pointer to a char. */
+ while (TYPE_CODE(tt1) == TYPE_CODE_REF
+ || TYPE_CODE (tt1) == TYPE_CODE_PTR)
{
tt1 = check_typedef( TYPE_TARGET_TYPE(tt1) );
}
- while ( TYPE_CODE(tt2) == TYPE_CODE_ARRAY ||
- TYPE_CODE(tt2) == TYPE_CODE_PTR ||
- TYPE_CODE(tt2) == TYPE_CODE_REF)
+ while (TYPE_CODE(tt2) == TYPE_CODE_ARRAY
+ || TYPE_CODE(tt2) == TYPE_CODE_PTR
+ || TYPE_CODE(tt2) == TYPE_CODE_REF)
{
- tt2 = check_typedef( TYPE_TARGET_TYPE(tt2) );
+ tt2 = check_typedef (TYPE_TARGET_TYPE(tt2));
}
if (TYPE_CODE (tt1) == TYPE_CODE (tt2))
continue;
- /* Array to pointer is a `trivial conversion' according to the ARM. */
+ /* Array to pointer is a `trivial conversion' according to the
+ ARM. */
- /* We should be doing much hairier argument matching (see section 13.2
- of the ARM), but as a quick kludge, just check for the same type
- code. */
- if (TYPE_CODE (t1[i].type) != TYPE_CODE (VALUE_TYPE (t2[i])))
+ /* We should be doing much hairier argument matching (see
+ section 13.2 of the ARM), but as a quick kludge, just check
+ for the same type code. */
+ if (TYPE_CODE (t1[i].type) != TYPE_CODE (value_type (t2[i])))
return i + 1;
}
if (varargs || t2[i] == NULL)
return i + 1;
}
-/* Helper function used by value_struct_elt to recurse through baseclasses.
- Look for a field NAME in ARG1. Adjust the address of ARG1 by OFFSET bytes,
- and search in it assuming it has (class) type TYPE.
- If found, return value, else return NULL.
+/* Helper function used by value_struct_elt to recurse through
+ baseclasses. Look for a field NAME in ARG1. Adjust the address of
+ ARG1 by OFFSET bytes, and search in it assuming it has (class) type
+ TYPE. If found, return value, else return NULL.
- If LOOKING_FOR_BASECLASS, then instead of looking for struct fields,
- look for a baseclass named NAME. */
+ If LOOKING_FOR_BASECLASS, then instead of looking for struct
+ fields, look for a baseclass named NAME. */
static struct value *
search_struct_field (char *name, struct value *arg1, int offset,
- register struct type *type, int looking_for_baseclass)
+ struct type *type, int looking_for_baseclass)
{
int i;
int nbases = TYPE_N_BASECLASSES (type);
{
v = value_static_field (type, i);
if (v == 0)
- error ("field %s is nonexistent or has been optimised out",
+ error (_("field %s is nonexistent or has been optimised out"),
name);
}
else
{
v = value_primitive_field (arg1, offset, i, type);
if (v == 0)
- error ("there is no field named %s", name);
+ error (_("there is no field named %s"), name);
}
return v;
}
if (TYPE_CODE (field_type) == TYPE_CODE_UNION
|| TYPE_CODE (field_type) == TYPE_CODE_STRUCT)
{
- /* Look for a match through the fields of an anonymous union,
- or anonymous struct. C++ provides anonymous unions.
+ /* Look for a match through the fields of an anonymous
+ union, or anonymous struct. C++ provides anonymous
+ unions.
In the GNU Chill (now deleted from GDB)
implementation of variant record types, each
enclosing struct. In the GNU Chill (now deleted
from GDB) implementation of variant records, the
bitpos is zero in an anonymous union field, so we
- have to add the offset of the union here. */
+ have to add the offset of the union here. */
if (TYPE_CODE (field_type) == TYPE_CODE_STRUCT
|| (TYPE_NFIELDS (field_type) > 0
&& TYPE_FIELD_BITPOS (field_type, 0) == 0))
new_offset += TYPE_FIELD_BITPOS (type, i) / 8;
- v = search_struct_field (name, arg1, new_offset, field_type,
+ v = search_struct_field (name, arg1, new_offset,
+ field_type,
looking_for_baseclass);
if (v)
return v;
{
struct value *v;
struct type *basetype = check_typedef (TYPE_BASECLASS (type, i));
- /* If we are looking for baseclasses, this is what we get when we
- hit them. But it could happen that the base part's member name
- is not yet filled in. */
+ /* If we are looking for baseclasses, this is what we get when
+ we hit them. But it could happen that the base part's member
+ name is not yet filled in. */
int found_baseclass = (looking_for_baseclass
&& TYPE_BASECLASS_NAME (type, i) != NULL
- && (strcmp_iw (name, TYPE_BASECLASS_NAME (type, i)) == 0));
+ && (strcmp_iw (name,
+ TYPE_BASECLASS_NAME (type,
+ i)) == 0));
if (BASETYPE_VIA_VIRTUAL (type, i))
{
struct value *v2 = allocate_value (basetype);
boffset = baseclass_offset (type, i,
- VALUE_CONTENTS (arg1) + offset,
+ value_contents (arg1) + offset,
VALUE_ADDRESS (arg1)
- + VALUE_OFFSET (arg1) + offset);
+ + value_offset (arg1) + offset);
if (boffset == -1)
- error ("virtual baseclass botch");
+ error (_("virtual baseclass botch"));
- /* The virtual base class pointer might have been clobbered by the
- user program. Make sure that it still points to a valid memory
- location. */
+ /* The virtual base class pointer might have been clobbered
+ by the user program. Make sure that it still points to a
+ valid memory location. */
boffset += offset;
if (boffset < 0 || boffset >= TYPE_LENGTH (type))
{
CORE_ADDR base_addr;
- base_addr = VALUE_ADDRESS (arg1) + VALUE_OFFSET (arg1) + boffset;
- if (target_read_memory (base_addr, VALUE_CONTENTS_RAW (v2),
+ base_addr =
+ VALUE_ADDRESS (arg1) + value_offset (arg1) + boffset;
+ if (target_read_memory (base_addr,
+ value_contents_raw (v2),
TYPE_LENGTH (basetype)) != 0)
- error ("virtual baseclass botch");
+ error (_("virtual baseclass botch"));
VALUE_LVAL (v2) = lval_memory;
VALUE_ADDRESS (v2) = base_addr;
}
{
VALUE_LVAL (v2) = VALUE_LVAL (arg1);
VALUE_ADDRESS (v2) = VALUE_ADDRESS (arg1);
- VALUE_OFFSET (v2) = VALUE_OFFSET (arg1) + boffset;
- if (VALUE_LAZY (arg1))
- VALUE_LAZY (v2) = 1;
+ VALUE_FRAME_ID (v2) = VALUE_FRAME_ID (arg1);
+ set_value_offset (v2, value_offset (arg1) + boffset);
+ if (value_lazy (arg1))
+ set_value_lazy (v2, 1);
else
- memcpy (VALUE_CONTENTS_RAW (v2),
- VALUE_CONTENTS_RAW (arg1) + boffset,
+ memcpy (value_contents_raw (v2),
+ value_contents_raw (arg1) + boffset,
TYPE_LENGTH (basetype));
}
if (found_baseclass)
return v2;
- v = search_struct_field (name, v2, 0, TYPE_BASECLASS (type, i),
+ v = search_struct_field (name, v2, 0,
+ TYPE_BASECLASS (type, i),
looking_for_baseclass);
}
else if (found_baseclass)
v = value_primitive_field (arg1, offset, i, type);
else
- v = search_struct_field (name, arg1,
- offset + TYPE_BASECLASS_BITPOS (type, i) / 8,
- basetype, looking_for_baseclass);
- if (v)
- return v;
- }
- return NULL;
-}
-
-
-/* Return the offset (in bytes) of the virtual base of type BASETYPE
- * in an object pointed to by VALADDR (on the host), assumed to be of
- * type TYPE. OFFSET is number of bytes beyond start of ARG to start
- * looking (in case VALADDR is the contents of an enclosing object).
- *
- * This routine recurses on the primary base of the derived class because
- * the virtual base entries of the primary base appear before the other
- * virtual base entries.
- *
- * If the virtual base is not found, a negative integer is returned.
- * The magnitude of the negative integer is the number of entries in
- * the virtual table to skip over (entries corresponding to various
- * ancestral classes in the chain of primary bases).
- *
- * Important: This assumes the HP / Taligent C++ runtime
- * conventions. Use baseclass_offset() instead to deal with g++
- * conventions. */
-
-void
-find_rt_vbase_offset (struct type *type, struct type *basetype, char *valaddr,
- int offset, int *boffset_p, int *skip_p)
-{
- int boffset; /* offset of virtual base */
- int index; /* displacement to use in virtual table */
- int skip;
-
- struct value *vp;
- CORE_ADDR vtbl; /* the virtual table pointer */
- struct type *pbc; /* the primary base class */
-
- /* Look for the virtual base recursively in the primary base, first.
- * This is because the derived class object and its primary base
- * subobject share the primary virtual table. */
-
- boffset = 0;
- pbc = TYPE_PRIMARY_BASE (type);
- if (pbc)
- {
- find_rt_vbase_offset (pbc, basetype, valaddr, offset, &boffset, &skip);
- if (skip < 0)
- {
- *boffset_p = boffset;
- *skip_p = -1;
- return;
- }
- }
- else
- skip = 0;
-
-
- /* Find the index of the virtual base according to HP/Taligent
- runtime spec. (Depth-first, left-to-right.) */
- index = virtual_base_index_skip_primaries (basetype, type);
-
- if (index < 0)
- {
- *skip_p = skip + virtual_base_list_length_skip_primaries (type);
- *boffset_p = 0;
- return;
+ v = search_struct_field (name, arg1,
+ offset + TYPE_BASECLASS_BITPOS (type,
+ i) / 8,
+ basetype, looking_for_baseclass);
+ if (v)
+ return v;
}
-
- /* pai: FIXME -- 32x64 possible problem */
- /* First word (4 bytes) in object layout is the vtable pointer */
- vtbl = *(CORE_ADDR *) (valaddr + offset);
-
- /* Before the constructor is invoked, things are usually zero'd out. */
- if (vtbl == 0)
- error ("Couldn't find virtual table -- object may not be constructed yet.");
-
-
- /* Find virtual base's offset -- jump over entries for primary base
- * ancestors, then use the index computed above. But also adjust by
- * HP_ACC_VBASE_START for the vtable slots before the start of the
- * virtual base entries. Offset is negative -- virtual base entries
- * appear _before_ the address point of the virtual table. */
-
- /* pai: FIXME -- 32x64 problem, if word = 8 bytes, change multiplier
- & use long type */
-
- /* epstein : FIXME -- added param for overlay section. May not be correct */
- vp = value_at (builtin_type_int, vtbl + 4 * (-skip - index - HP_ACC_VBASE_START), NULL);
- boffset = value_as_long (vp);
- *skip_p = -1;
- *boffset_p = boffset;
- return;
+ return NULL;
}
+/* Helper function used by value_struct_elt to recurse through
+ baseclasses. Look for a field NAME in ARG1. Adjust the address of
+ ARG1 by OFFSET bytes, and search in it assuming it has (class) type
+ TYPE.
-/* Helper function used by value_struct_elt to recurse through baseclasses.
- Look for a field NAME in ARG1. Adjust the address of ARG1 by OFFSET bytes,
- and search in it assuming it has (class) type TYPE.
- If found, return value, else if name matched and args not return (value)-1,
- else return NULL. */
+ If found, return value, else if name matched and args not return
+ (value) -1, else return NULL. */
static struct value *
search_struct_method (char *name, struct value **arg1p,
struct value **args, int offset,
- int *static_memfuncp, register struct type *type)
+ int *static_memfuncp, struct type *type)
{
int i;
struct value *v;
check_stub_method_group (type, i);
if (j > 0 && args == 0)
- error ("cannot resolve overloaded method `%s': no arguments supplied", name);
+ error (_("cannot resolve overloaded method `%s': no arguments supplied"), name);
else if (j == 0 && args == 0)
{
v = value_fn_field (arg1p, f, j, type, offset);
TYPE_FN_FIELD_ARGS (f, j), args))
{
if (TYPE_FN_FIELD_VIRTUAL_P (f, j))
- return value_virtual_fn_field (arg1p, f, j, type, offset);
- if (TYPE_FN_FIELD_STATIC_P (f, j) && static_memfuncp)
+ return value_virtual_fn_field (arg1p, f, j,
+ type, offset);
+ if (TYPE_FN_FIELD_STATIC_P (f, j)
+ && static_memfuncp)
*static_memfuncp = 1;
v = value_fn_field (arg1p, f, j, type, offset);
if (v != NULL)
if (BASETYPE_VIA_VIRTUAL (type, i))
{
- if (TYPE_HAS_VTABLE (type))
+ struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i));
+ const gdb_byte *base_valaddr;
+
+ /* The virtual base class pointer might have been
+ clobbered by the user program. Make sure that it
+ still points to a valid memory location. */
+
+ if (offset < 0 || offset >= TYPE_LENGTH (type))
{
- /* HP aCC compiled type, search for virtual base offset
- according to HP/Taligent runtime spec. */
- int skip;
- find_rt_vbase_offset (type, TYPE_BASECLASS (type, i),
- VALUE_CONTENTS_ALL (*arg1p),
- offset + VALUE_EMBEDDED_OFFSET (*arg1p),
- &base_offset, &skip);
- if (skip >= 0)
- error ("Virtual base class offset not found in vtable");
+ gdb_byte *tmp = alloca (TYPE_LENGTH (baseclass));
+ if (target_read_memory (VALUE_ADDRESS (*arg1p)
+ + value_offset (*arg1p) + offset,
+ tmp, TYPE_LENGTH (baseclass)) != 0)
+ error (_("virtual baseclass botch"));
+ base_valaddr = tmp;
}
else
- {
- struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i));
- char *base_valaddr;
+ base_valaddr = value_contents (*arg1p) + offset;
- /* The virtual base class pointer might have been clobbered by the
- user program. Make sure that it still points to a valid memory
- location. */
-
- if (offset < 0 || offset >= TYPE_LENGTH (type))
- {
- base_valaddr = (char *) alloca (TYPE_LENGTH (baseclass));
- if (target_read_memory (VALUE_ADDRESS (*arg1p)
- + VALUE_OFFSET (*arg1p) + offset,
- base_valaddr,
- TYPE_LENGTH (baseclass)) != 0)
- error ("virtual baseclass botch");
- }
- else
- base_valaddr = VALUE_CONTENTS (*arg1p) + offset;
-
- base_offset =
- baseclass_offset (type, i, base_valaddr,
- VALUE_ADDRESS (*arg1p)
- + VALUE_OFFSET (*arg1p) + offset);
- if (base_offset == -1)
- error ("virtual baseclass botch");
- }
+ base_offset = baseclass_offset (type, i, base_valaddr,
+ VALUE_ADDRESS (*arg1p)
+ + value_offset (*arg1p) + offset);
+ if (base_offset == -1)
+ error (_("virtual baseclass botch"));
}
else
{
}
else if (v)
{
-/* FIXME-bothner: Why is this commented out? Why is it here? */
-/* *arg1p = arg1_tmp; */
+ /* FIXME-bothner: Why is this commented out? Why is it here? */
+ /* *arg1p = arg1_tmp; */
return v;
}
}
}
/* Given *ARGP, a value of type (pointer to a)* structure/union,
- extract the component named NAME from the ultimate target structure/union
- and return it as a value with its appropriate type.
+ extract the component named NAME from the ultimate target
+ structure/union and return it as a value with its appropriate type.
ERR is used in the error message if *ARGP's type is wrong.
C++: ARGS is a list of argument types to aid in the selection of
where the truthvalue of whether the function that was resolved was
a static member function or not is stored.
- ERR is an error message to be printed in case the field is not found. */
+ ERR is an error message to be printed in case the field is not
+ found. */
struct value *
value_struct_elt (struct value **argp, struct value **args,
char *name, int *static_memfuncp, char *err)
{
- register struct type *t;
+ struct type *t;
struct value *v;
- COERCE_ARRAY (*argp);
+ *argp = coerce_array (*argp);
- t = check_typedef (VALUE_TYPE (*argp));
+ t = check_typedef (value_type (*argp));
/* Follow pointers until we get to a non-pointer. */
{
*argp = value_ind (*argp);
/* Don't coerce fn pointer to fn and then back again! */
- if (TYPE_CODE (VALUE_TYPE (*argp)) != TYPE_CODE_FUNC)
- COERCE_ARRAY (*argp);
- t = check_typedef (VALUE_TYPE (*argp));
+ if (TYPE_CODE (value_type (*argp)) != TYPE_CODE_FUNC)
+ *argp = coerce_array (*argp);
+ t = check_typedef (value_type (*argp));
}
- if (TYPE_CODE (t) == TYPE_CODE_MEMBER)
- error ("not implemented: member type in value_struct_elt");
-
if (TYPE_CODE (t) != TYPE_CODE_STRUCT
&& TYPE_CODE (t) != TYPE_CODE_UNION)
- error ("Attempt to extract a component of a value that is not a %s.", err);
+ error (_("Attempt to extract a component of a value that is not a %s."), err);
/* Assume it's not, unless we see that it is. */
if (static_memfuncp)
{
/* if there are no arguments ...do this... */
- /* Try as a field first, because if we succeed, there
- is less work to be done. */
+ /* Try as a field first, because if we succeed, there is less
+ work to be done. */
v = search_struct_field (name, *argp, 0, t, 0);
if (v)
return v;
return it as a pointer to a method. */
if (destructor_name_p (name, t))
- error ("Cannot get value of destructor");
+ error (_("Cannot get value of destructor"));
- v = search_struct_method (name, argp, args, 0, static_memfuncp, t);
+ v = search_struct_method (name, argp, args, 0,
+ static_memfuncp, t);
if (v == (struct value *) - 1)
- error ("Cannot take address of a method");
+ error (_("Cannot take address of method %s."), name);
else if (v == 0)
{
if (TYPE_NFN_FIELDS (t))
- error ("There is no member or method named %s.", name);
+ error (_("There is no member or method named %s."), name);
else
- error ("There is no member named %s.", name);
+ error (_("There is no member named %s."), name);
}
return v;
}
v = NULL;
if (get_destructor_fn_field (t, &m_index, &f_index))
{
- v = value_fn_field (NULL, TYPE_FN_FIELDLIST1 (t, m_index),
+ v = value_fn_field (NULL,
+ TYPE_FN_FIELDLIST1 (t, m_index),
f_index, NULL, 0);
}
if (v == NULL)
- error ("could not find destructor function named %s.", name);
+ error (_("could not find destructor function named %s."),
+ name);
else
return v;
}
else
{
- error ("destructor should not have any argument");
+ error (_("destructor should not have any argument"));
}
}
else
- v = search_struct_method (name, argp, args, 0, static_memfuncp, t);
+ v = search_struct_method (name, argp, args, 0,
+ static_memfuncp, t);
if (v == (struct value *) - 1)
{
- error ("One of the arguments you tried to pass to %s could not be converted to what the function wants.", name);
+ error (_("One of the arguments you tried to pass to %s could not be converted to what the function wants."), name);
}
else if (v == 0)
{
- /* See if user tried to invoke data as function. If so,
- hand it back. If it's not callable (i.e., a pointer to function),
+ /* See if user tried to invoke data as function. If so, hand it
+ back. If it's not callable (i.e., a pointer to function),
gdb should give an error. */
v = search_struct_field (name, *argp, 0, t, 0);
}
if (!v)
- error ("Structure has no component named %s.", name);
+ error (_("Structure has no component named %s."), name);
return v;
}
-/* Search through the methods of an object (and its bases)
- * to find a specified method. Return the pointer to the
- * fn_field list of overloaded instances.
- * Helper function for value_find_oload_list.
- * ARGP is a pointer to a pointer to a value (the object)
- * METHOD is a string containing the method name
- * OFFSET is the offset within the value
- * TYPE is the assumed type of the object
- * NUM_FNS is the number of overloaded instances
- * BASETYPE is set to the actual type of the subobject where the method is found
- * BOFFSET is the offset of the base subobject where the method is found */
+/* Search through the methods of an object (and its bases) to find a
+ specified method. Return the pointer to the fn_field list of
+ overloaded instances.
+
+ Helper function for value_find_oload_list.
+ ARGP is a pointer to a pointer to a value (the object).
+ METHOD is a string containing the method name.
+ OFFSET is the offset within the value.
+ TYPE is the assumed type of the object.
+ NUM_FNS is the number of overloaded instances.
+ BASETYPE is set to the actual type of the subobject where the
+ method is found.
+ BOFFSET is the offset of the base subobject where the method is found.
+*/
static struct fn_field *
-find_method_list (struct value **argp, char *method, int offset,
- struct type *type, int *num_fns,
+find_method_list (struct value **argp, char *method,
+ int offset, struct type *type, int *num_fns,
struct type **basetype, int *boffset)
{
int i;
*num_fns = 0;
- /* First check in object itself */
+ /* First check in object itself. */
for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; i--)
{
- /* pai: FIXME What about operators and type conversions? */
+ /* pai: FIXME What about operators and type conversions? */
char *fn_field_name = TYPE_FN_FIELDLIST_NAME (type, i);
if (fn_field_name && (strcmp_iw (fn_field_name, method) == 0))
{
}
}
- /* Not found in object, check in base subobjects */
+ /* Not found in object, check in base subobjects. */
for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--)
{
int base_offset;
if (BASETYPE_VIA_VIRTUAL (type, i))
{
- if (TYPE_HAS_VTABLE (type))
- {
- /* HP aCC compiled type, search for virtual base offset
- * according to HP/Taligent runtime spec. */
- int skip;
- find_rt_vbase_offset (type, TYPE_BASECLASS (type, i),
- VALUE_CONTENTS_ALL (*argp),
- offset + VALUE_EMBEDDED_OFFSET (*argp),
- &base_offset, &skip);
- if (skip >= 0)
- error ("Virtual base class offset not found in vtable");
- }
- else
- {
- /* probably g++ runtime model */
- base_offset = VALUE_OFFSET (*argp) + offset;
- base_offset =
- baseclass_offset (type, i,
- VALUE_CONTENTS (*argp) + base_offset,
- VALUE_ADDRESS (*argp) + base_offset);
- if (base_offset == -1)
- error ("virtual baseclass botch");
- }
+ base_offset = value_offset (*argp) + offset;
+ base_offset = baseclass_offset (type, i,
+ value_contents (*argp) + base_offset,
+ VALUE_ADDRESS (*argp) + base_offset);
+ if (base_offset == -1)
+ error (_("virtual baseclass botch"));
}
- else
- /* non-virtual base, simply use bit position from debug info */
+ else /* Non-virtual base, simply use bit position from debug
+ info. */
{
base_offset = TYPE_BASECLASS_BITPOS (type, i) / 8;
}
f = find_method_list (argp, method, base_offset + offset,
- TYPE_BASECLASS (type, i), num_fns, basetype,
- boffset);
+ TYPE_BASECLASS (type, i), num_fns,
+ basetype, boffset);
if (f)
return f;
}
}
/* Return the list of overloaded methods of a specified name.
- * ARGP is a pointer to a pointer to a value (the object)
- * METHOD is the method name
- * OFFSET is the offset within the value contents
- * NUM_FNS is the number of overloaded instances
- * BASETYPE is set to the type of the base subobject that defines the method
- * BOFFSET is the offset of the base subobject which defines the method */
+
+ ARGP is a pointer to a pointer to a value (the object).
+ METHOD is the method name.
+ OFFSET is the offset within the value contents.
+ NUM_FNS is the number of overloaded instances.
+ BASETYPE is set to the type of the base subobject that defines the
+ method.
+ BOFFSET is the offset of the base subobject which defines the method.
+*/
struct fn_field *
-value_find_oload_method_list (struct value **argp, char *method, int offset,
- int *num_fns, struct type **basetype,
- int *boffset)
+value_find_oload_method_list (struct value **argp, char *method,
+ int offset, int *num_fns,
+ struct type **basetype, int *boffset)
{
struct type *t;
- t = check_typedef (VALUE_TYPE (*argp));
+ t = check_typedef (value_type (*argp));
- /* code snarfed from value_struct_elt */
+ /* Code snarfed from value_struct_elt. */
while (TYPE_CODE (t) == TYPE_CODE_PTR || TYPE_CODE (t) == TYPE_CODE_REF)
{
*argp = value_ind (*argp);
/* Don't coerce fn pointer to fn and then back again! */
- if (TYPE_CODE (VALUE_TYPE (*argp)) != TYPE_CODE_FUNC)
- COERCE_ARRAY (*argp);
- t = check_typedef (VALUE_TYPE (*argp));
+ if (TYPE_CODE (value_type (*argp)) != TYPE_CODE_FUNC)
+ *argp = coerce_array (*argp);
+ t = check_typedef (value_type (*argp));
}
- if (TYPE_CODE (t) == TYPE_CODE_MEMBER)
- error ("Not implemented: member type in value_find_oload_lis");
-
if (TYPE_CODE (t) != TYPE_CODE_STRUCT
&& TYPE_CODE (t) != TYPE_CODE_UNION)
- error ("Attempt to extract a component of a value that is not a struct or union");
+ error (_("Attempt to extract a component of a value that is not a struct or union"));
- return find_method_list (argp, method, 0, t, num_fns, basetype, boffset);
+ return find_method_list (argp, method, 0, t, num_fns,
+ basetype, boffset);
}
/* Given an array of argument types (ARGTYPES) (which includes an
non-standard coercions, 100 -> incompatible.
If a method is being searched for, VALP will hold the value.
- If a non-method is being searched for, SYMP will hold the symbol for it.
+ If a non-method is being searched for, SYMP will hold the symbol
+ for it.
If a method is being searched for, and it is a static method,
then STATICP will point to a non-zero value.
Note: This function does *not* check the value of
overload_resolution. Caller must check it to see whether overload
resolution is permitted.
- */
+*/
int
-find_overload_match (struct type **arg_types, int nargs, char *name, int method,
- int lax, struct value **objp, struct symbol *fsym,
- struct value **valp, struct symbol **symp, int *staticp)
+find_overload_match (struct type **arg_types, int nargs,
+ char *name, int method, int lax,
+ struct value **objp, struct symbol *fsym,
+ struct value **valp, struct symbol **symp,
+ int *staticp)
{
- int nparms;
- struct type **parm_types;
- int champ_nparms = 0;
struct value *obj = (objp ? *objp : NULL);
-
- short oload_champ = -1; /* Index of best overloaded function */
- short oload_ambiguous = 0; /* Current ambiguity state for overload resolution */
- /* 0 => no ambiguity, 1 => two good funcs, 2 => incomparable funcs */
- short oload_ambig_champ = -1; /* 2nd contender for best match */
- short oload_non_standard = 0; /* did we have to use non-standard conversions? */
- short oload_incompatible = 0; /* are args supplied incompatible with any function? */
-
- struct badness_vector *bv; /* A measure of how good an overloaded instance is */
- struct badness_vector *oload_champ_bv = NULL; /* The measure for the current best match */
-
+ /* Index of best overloaded function. */
+ int oload_champ;
+ /* The measure for the current best match. */
+ struct badness_vector *oload_champ_bv = NULL;
struct value *temp = obj;
- struct fn_field *fns_ptr = NULL; /* For methods, the list of overloaded methods */
- struct symbol **oload_syms = NULL; /* For non-methods, the list of overloaded function symbols */
- int num_fns = 0; /* Number of overloaded instances being considered */
+ /* For methods, the list of overloaded methods. */
+ struct fn_field *fns_ptr = NULL;
+ /* For non-methods, the list of overloaded function symbols. */
+ struct symbol **oload_syms = NULL;
+ /* Number of overloaded instances being considered. */
+ int num_fns = 0;
struct type *basetype = NULL;
int boffset;
- register int jj;
- register int ix;
+ int ix;
int static_offset;
- struct cleanup *cleanups = NULL;
+ struct cleanup *old_cleanups = NULL;
- char *obj_type_name = NULL;
+ const char *obj_type_name = NULL;
char *func_name = NULL;
+ enum oload_classification match_quality;
- /* Get the list of overloaded methods or functions */
+ /* Get the list of overloaded methods or functions. */
if (method)
{
- obj_type_name = TYPE_NAME (VALUE_TYPE (obj));
+ gdb_assert (obj);
+ obj_type_name = TYPE_NAME (value_type (obj));
/* Hack: evaluate_subexp_standard often passes in a pointer
- value rather than the object itself, so try again */
- if ((!obj_type_name || !*obj_type_name) &&
- (TYPE_CODE (VALUE_TYPE (obj)) == TYPE_CODE_PTR))
- obj_type_name = TYPE_NAME (TYPE_TARGET_TYPE (VALUE_TYPE (obj)));
+ value rather than the object itself, so try again. */
+ if ((!obj_type_name || !*obj_type_name)
+ && (TYPE_CODE (value_type (obj)) == TYPE_CODE_PTR))
+ obj_type_name = TYPE_NAME (TYPE_TARGET_TYPE (value_type (obj)));
- fns_ptr = value_find_oload_method_list (&temp, name, 0,
- &num_fns,
+ fns_ptr = value_find_oload_method_list (&temp, name,
+ 0, &num_fns,
&basetype, &boffset);
if (!fns_ptr || !num_fns)
- error ("Couldn't find method %s%s%s",
+ error (_("Couldn't find method %s%s%s"),
obj_type_name,
(obj_type_name && *obj_type_name) ? "::" : "",
name);
/* If we are dealing with stub method types, they should have
- been resolved by find_method_list via value_find_oload_method_list
- above. */
+ been resolved by find_method_list via
+ value_find_oload_method_list above. */
gdb_assert (TYPE_DOMAIN_TYPE (fns_ptr[0].type) != NULL);
+ oload_champ = find_oload_champ (arg_types, nargs, method,
+ num_fns, fns_ptr,
+ oload_syms, &oload_champ_bv);
}
else
{
- int i = -1;
- func_name = cplus_demangle (DEPRECATED_SYMBOL_NAME (fsym), DMGL_NO_OPTS);
+ const char *qualified_name = SYMBOL_CPLUS_DEMANGLED_NAME (fsym);
- /* If the name is NULL this must be a C-style function.
- Just return the same symbol. */
- if (!func_name)
+ /* If we have a C++ name, try to extract just the function
+ part. */
+ if (qualified_name)
+ func_name = cp_func_name (qualified_name);
+
+ /* If there was no C++ name, this must be a C-style function.
+ Just return the same symbol. Do the same if cp_func_name
+ fails for some reason. */
+ if (func_name == NULL)
{
*symp = fsym;
return 0;
}
- oload_syms = make_symbol_overload_list (fsym);
- cleanups = make_cleanup (xfree, oload_syms);
- while (oload_syms[++i])
- num_fns++;
- if (!num_fns)
- error ("Couldn't find function %s", func_name);
+ old_cleanups = make_cleanup (xfree, func_name);
+ make_cleanup (xfree, oload_syms);
+ make_cleanup (xfree, oload_champ_bv);
+
+ oload_champ = find_oload_champ_namespace (arg_types, nargs,
+ func_name,
+ qualified_name,
+ &oload_syms,
+ &oload_champ_bv);
+ }
+
+ /* Check how bad the best match is. */
+
+ match_quality =
+ classify_oload_match (oload_champ_bv, nargs,
+ oload_method_static (method, fns_ptr,
+ oload_champ));
+
+ if (match_quality == INCOMPATIBLE)
+ {
+ if (method)
+ error (_("Cannot resolve method %s%s%s to any overloaded instance"),
+ obj_type_name,
+ (obj_type_name && *obj_type_name) ? "::" : "",
+ name);
+ else
+ error (_("Cannot resolve function %s to any overloaded instance"),
+ func_name);
+ }
+ else if (match_quality == NON_STANDARD)
+ {
+ if (method)
+ warning (_("Using non-standard conversion to match method %s%s%s to supplied arguments"),
+ obj_type_name,
+ (obj_type_name && *obj_type_name) ? "::" : "",
+ name);
+ else
+ warning (_("Using non-standard conversion to match function %s to supplied arguments"),
+ func_name);
+ }
+
+ if (method)
+ {
+ if (staticp != NULL)
+ *staticp = oload_method_static (method, fns_ptr, oload_champ);
+ if (TYPE_FN_FIELD_VIRTUAL_P (fns_ptr, oload_champ))
+ *valp = value_virtual_fn_field (&temp, fns_ptr, oload_champ,
+ basetype, boffset);
+ else
+ *valp = value_fn_field (&temp, fns_ptr, oload_champ,
+ basetype, boffset);
+ }
+ else
+ {
+ *symp = oload_syms[oload_champ];
+ }
+
+ if (objp)
+ {
+ if (TYPE_CODE (value_type (temp)) != TYPE_CODE_PTR
+ && TYPE_CODE (value_type (*objp)) == TYPE_CODE_PTR)
+ {
+ temp = value_addr (temp);
+ }
+ *objp = temp;
+ }
+ if (old_cleanups != NULL)
+ do_cleanups (old_cleanups);
+
+ switch (match_quality)
+ {
+ case INCOMPATIBLE:
+ return 100;
+ case NON_STANDARD:
+ return 10;
+ default: /* STANDARD */
+ return 0;
+ }
+}
+
+/* Find the best overload match, searching for FUNC_NAME in namespaces
+ contained in QUALIFIED_NAME until it either finds a good match or
+ runs out of namespaces. It stores the overloaded functions in
+ *OLOAD_SYMS, and the badness vector in *OLOAD_CHAMP_BV. The
+ calling function is responsible for freeing *OLOAD_SYMS and
+ *OLOAD_CHAMP_BV. */
+
+static int
+find_oload_champ_namespace (struct type **arg_types, int nargs,
+ const char *func_name,
+ const char *qualified_name,
+ struct symbol ***oload_syms,
+ struct badness_vector **oload_champ_bv)
+{
+ int oload_champ;
+
+ find_oload_champ_namespace_loop (arg_types, nargs,
+ func_name,
+ qualified_name, 0,
+ oload_syms, oload_champ_bv,
+ &oload_champ);
+
+ return oload_champ;
+}
+
+/* Helper function for find_oload_champ_namespace; NAMESPACE_LEN is
+ how deep we've looked for namespaces, and the champ is stored in
+ OLOAD_CHAMP. The return value is 1 if the champ is a good one, 0
+ if it isn't.
+
+ It is the caller's responsibility to free *OLOAD_SYMS and
+ *OLOAD_CHAMP_BV. */
+
+static int
+find_oload_champ_namespace_loop (struct type **arg_types, int nargs,
+ const char *func_name,
+ const char *qualified_name,
+ int namespace_len,
+ struct symbol ***oload_syms,
+ struct badness_vector **oload_champ_bv,
+ int *oload_champ)
+{
+ int next_namespace_len = namespace_len;
+ int searched_deeper = 0;
+ int num_fns = 0;
+ struct cleanup *old_cleanups;
+ int new_oload_champ;
+ struct symbol **new_oload_syms;
+ struct badness_vector *new_oload_champ_bv;
+ char *new_namespace;
+
+ if (next_namespace_len != 0)
+ {
+ gdb_assert (qualified_name[next_namespace_len] == ':');
+ next_namespace_len += 2;
+ }
+ next_namespace_len +=
+ cp_find_first_component (qualified_name + next_namespace_len);
+
+ /* Initialize these to values that can safely be xfree'd. */
+ *oload_syms = NULL;
+ *oload_champ_bv = NULL;
+
+ /* First, see if we have a deeper namespace we can search in.
+ If we get a good match there, use it. */
+
+ if (qualified_name[next_namespace_len] == ':')
+ {
+ searched_deeper = 1;
+
+ if (find_oload_champ_namespace_loop (arg_types, nargs,
+ func_name, qualified_name,
+ next_namespace_len,
+ oload_syms, oload_champ_bv,
+ oload_champ))
+ {
+ return 1;
+ }
+ };
+
+ /* If we reach here, either we're in the deepest namespace or we
+ didn't find a good match in a deeper namespace. But, in the
+ latter case, we still have a bad match in a deeper namespace;
+ note that we might not find any match at all in the current
+ namespace. (There's always a match in the deepest namespace,
+ because this overload mechanism only gets called if there's a
+ function symbol to start off with.) */
+
+ old_cleanups = make_cleanup (xfree, *oload_syms);
+ old_cleanups = make_cleanup (xfree, *oload_champ_bv);
+ new_namespace = alloca (namespace_len + 1);
+ strncpy (new_namespace, qualified_name, namespace_len);
+ new_namespace[namespace_len] = '\0';
+ new_oload_syms = make_symbol_overload_list (func_name,
+ new_namespace);
+ while (new_oload_syms[num_fns])
+ ++num_fns;
+
+ new_oload_champ = find_oload_champ (arg_types, nargs, 0, num_fns,
+ NULL, new_oload_syms,
+ &new_oload_champ_bv);
+
+ /* Case 1: We found a good match. Free earlier matches (if any),
+ and return it. Case 2: We didn't find a good match, but we're
+ not the deepest function. Then go with the bad match that the
+ deeper function found. Case 3: We found a bad match, and we're
+ the deepest function. Then return what we found, even though
+ it's a bad match. */
+
+ if (new_oload_champ != -1
+ && classify_oload_match (new_oload_champ_bv, nargs, 0) == STANDARD)
+ {
+ *oload_syms = new_oload_syms;
+ *oload_champ = new_oload_champ;
+ *oload_champ_bv = new_oload_champ_bv;
+ do_cleanups (old_cleanups);
+ return 1;
+ }
+ else if (searched_deeper)
+ {
+ xfree (new_oload_syms);
+ xfree (new_oload_champ_bv);
+ discard_cleanups (old_cleanups);
+ return 0;
+ }
+ else
+ {
+ gdb_assert (new_oload_champ != -1);
+ *oload_syms = new_oload_syms;
+ *oload_champ = new_oload_champ;
+ *oload_champ_bv = new_oload_champ_bv;
+ discard_cleanups (old_cleanups);
+ return 0;
}
+}
+
+/* Look for a function to take NARGS args of types ARG_TYPES. Find
+ the best match from among the overloaded methods or functions
+ (depending on METHOD) given by FNS_PTR or OLOAD_SYMS, respectively.
+ The number of methods/functions in the list is given by NUM_FNS.
+ Return the index of the best match; store an indication of the
+ quality of the match in OLOAD_CHAMP_BV.
- oload_champ_bv = NULL;
+ It is the caller's responsibility to free *OLOAD_CHAMP_BV. */
- /* Consider each candidate in turn */
+static int
+find_oload_champ (struct type **arg_types, int nargs, int method,
+ int num_fns, struct fn_field *fns_ptr,
+ struct symbol **oload_syms,
+ struct badness_vector **oload_champ_bv)
+{
+ int ix;
+ /* A measure of how good an overloaded instance is. */
+ struct badness_vector *bv;
+ /* Index of best overloaded function. */
+ int oload_champ = -1;
+ /* Current ambiguity state for overload resolution. */
+ int oload_ambiguous = 0;
+ /* 0 => no ambiguity, 1 => two good funcs, 2 => incomparable funcs. */
+
+ *oload_champ_bv = NULL;
+
+ /* Consider each candidate in turn. */
for (ix = 0; ix < num_fns; ix++)
{
- static_offset = 0;
+ int jj;
+ int static_offset = oload_method_static (method, fns_ptr, ix);
+ int nparms;
+ struct type **parm_types;
+
if (method)
{
- if (TYPE_FN_FIELD_STATIC_P (fns_ptr, ix))
- static_offset = 1;
nparms = TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (fns_ptr, ix));
}
else
{
- /* If it's not a method, this is the proper place */
- nparms=TYPE_NFIELDS(SYMBOL_TYPE(oload_syms[ix]));
+ /* If it's not a method, this is the proper place. */
+ nparms = TYPE_NFIELDS (SYMBOL_TYPE (oload_syms[ix]));
}
- /* Prepare array of parameter types */
- parm_types = (struct type **) xmalloc (nparms * (sizeof (struct type *)));
+ /* Prepare array of parameter types. */
+ parm_types = (struct type **)
+ xmalloc (nparms * (sizeof (struct type *)));
for (jj = 0; jj < nparms; jj++)
parm_types[jj] = (method
? (TYPE_FN_FIELD_ARGS (fns_ptr, ix)[jj].type)
- : TYPE_FIELD_TYPE (SYMBOL_TYPE (oload_syms[ix]), jj));
+ : TYPE_FIELD_TYPE (SYMBOL_TYPE (oload_syms[ix]),
+ jj));
- /* Compare parameter types to supplied argument types. Skip THIS for
- static methods. */
- bv = rank_function (parm_types, nparms, arg_types + static_offset,
+ /* Compare parameter types to supplied argument types. Skip
+ THIS for static methods. */
+ bv = rank_function (parm_types, nparms,
+ arg_types + static_offset,
nargs - static_offset);
- if (!oload_champ_bv)
+ if (!*oload_champ_bv)
{
- oload_champ_bv = bv;
+ *oload_champ_bv = bv;
oload_champ = 0;
- champ_nparms = nparms;
}
- else
- /* See whether current candidate is better or worse than previous best */
- switch (compare_badness (bv, oload_champ_bv))
+ else /* See whether current candidate is better or worse than
+ previous best. */
+ switch (compare_badness (bv, *oload_champ_bv))
{
- case 0:
- oload_ambiguous = 1; /* top two contenders are equally good */
- oload_ambig_champ = ix;
+ case 0: /* Top two contenders are equally good. */
+ oload_ambiguous = 1;
break;
- case 1:
- oload_ambiguous = 2; /* incomparable top contenders */
- oload_ambig_champ = ix;
+ case 1: /* Incomparable top contenders. */
+ oload_ambiguous = 2;
break;
- case 2:
- oload_champ_bv = bv; /* new champion, record details */
+ case 2: /* New champion, record details. */
+ *oload_champ_bv = bv;
oload_ambiguous = 0;
oload_champ = ix;
- oload_ambig_champ = -1;
- champ_nparms = nparms;
break;
case 3:
default:
if (overload_debug)
{
if (method)
- fprintf_filtered (gdb_stderr,"Overloaded method instance %s, # of parms %d\n", fns_ptr[ix].physname, nparms);
+ fprintf_filtered (gdb_stderr,
+ "Overloaded method instance %s, # of parms %d\n",
+ fns_ptr[ix].physname, nparms);
else
- fprintf_filtered (gdb_stderr,"Overloaded function instance %s # of parms %d\n", SYMBOL_DEMANGLED_NAME (oload_syms[ix]), nparms);
+ fprintf_filtered (gdb_stderr,
+ "Overloaded function instance %s # of parms %d\n",
+ SYMBOL_DEMANGLED_NAME (oload_syms[ix]),
+ nparms);
for (jj = 0; jj < nargs - static_offset; jj++)
- fprintf_filtered (gdb_stderr,"...Badness @ %d : %d\n", jj, bv->rank[jj]);
- fprintf_filtered (gdb_stderr,"Overload resolution champion is %d, ambiguous? %d\n", oload_champ, oload_ambiguous);
+ fprintf_filtered (gdb_stderr,
+ "...Badness @ %d : %d\n",
+ jj, bv->rank[jj]);
+ fprintf_filtered (gdb_stderr,
+ "Overload resolution champion is %d, ambiguous? %d\n",
+ oload_champ, oload_ambiguous);
}
- } /* end loop over all candidates */
- /* NOTE: dan/2000-03-10: Seems to be a better idea to just pick one
- if they have the exact same goodness. This is because there is no
- way to differentiate based on return type, which we need to in
- cases like overloads of .begin() <It's both const and non-const> */
-#if 0
- if (oload_ambiguous)
- {
- if (method)
- error ("Cannot resolve overloaded method %s%s%s to unique instance; disambiguate by specifying function signature",
- obj_type_name,
- (obj_type_name && *obj_type_name) ? "::" : "",
- name);
- else
- error ("Cannot resolve overloaded function %s to unique instance; disambiguate by specifying function signature",
- func_name);
}
-#endif
- /* Check how bad the best match is. */
- static_offset = 0;
- if (method && TYPE_FN_FIELD_STATIC_P (fns_ptr, oload_champ))
- static_offset = 1;
- for (ix = 1; ix <= nargs - static_offset; ix++)
- {
- if (oload_champ_bv->rank[ix] >= 100)
- oload_incompatible = 1; /* truly mismatched types */
+ return oload_champ;
+}
- else if (oload_champ_bv->rank[ix] >= 10)
- oload_non_standard = 1; /* non-standard type conversions needed */
- }
- if (oload_incompatible)
- {
- if (method)
- error ("Cannot resolve method %s%s%s to any overloaded instance",
- obj_type_name,
- (obj_type_name && *obj_type_name) ? "::" : "",
- name);
- else
- error ("Cannot resolve function %s to any overloaded instance",
- func_name);
- }
- else if (oload_non_standard)
- {
- if (method)
- warning ("Using non-standard conversion to match method %s%s%s to supplied arguments",
- obj_type_name,
- (obj_type_name && *obj_type_name) ? "::" : "",
- name);
- else
- warning ("Using non-standard conversion to match function %s to supplied arguments",
- func_name);
- }
+/* Return 1 if we're looking at a static method, 0 if we're looking at
+ a non-static method or a function that isn't a method. */
- if (method)
- {
- if (staticp && TYPE_FN_FIELD_STATIC_P (fns_ptr, oload_champ))
- *staticp = 1;
- else if (staticp)
- *staticp = 0;
- if (TYPE_FN_FIELD_VIRTUAL_P (fns_ptr, oload_champ))
- *valp = value_virtual_fn_field (&temp, fns_ptr, oload_champ, basetype, boffset);
- else
- *valp = value_fn_field (&temp, fns_ptr, oload_champ, basetype, boffset);
- }
+static int
+oload_method_static (int method, struct fn_field *fns_ptr, int index)
+{
+ if (method && TYPE_FN_FIELD_STATIC_P (fns_ptr, index))
+ return 1;
else
- {
- *symp = oload_syms[oload_champ];
- xfree (func_name);
- }
+ return 0;
+}
- if (objp)
+/* Check how good an overload match OLOAD_CHAMP_BV represents. */
+
+static enum oload_classification
+classify_oload_match (struct badness_vector *oload_champ_bv,
+ int nargs,
+ int static_offset)
+{
+ int ix;
+
+ for (ix = 1; ix <= nargs - static_offset; ix++)
{
- if (TYPE_CODE (VALUE_TYPE (temp)) != TYPE_CODE_PTR
- && TYPE_CODE (VALUE_TYPE (*objp)) == TYPE_CODE_PTR)
- {
- temp = value_addr (temp);
- }
- *objp = temp;
+ if (oload_champ_bv->rank[ix] >= 100)
+ return INCOMPATIBLE; /* Truly mismatched types. */
+ else if (oload_champ_bv->rank[ix] >= 10)
+ return NON_STANDARD; /* Non-standard type conversions
+ needed. */
}
- if (cleanups != NULL)
- do_cleanups (cleanups);
- return oload_incompatible ? 100 : (oload_non_standard ? 10 : 0);
+ return STANDARD; /* Only standard conversions needed. */
}
-/* C++: return 1 is NAME is a legitimate name for the destructor
- of type TYPE. If TYPE does not have a destructor, or
- if NAME is inappropriate for TYPE, an error is signaled. */
+/* C++: return 1 is NAME is a legitimate name for the destructor of
+ type TYPE. If TYPE does not have a destructor, or if NAME is
+ inappropriate for TYPE, an error is signaled. */
int
destructor_name_p (const char *name, const struct type *type)
{
- /* destructors are a special case. */
+ /* Destructors are a special case. */
if (name[0] == '~')
{
len = strlen (dname);
else
len = cp - dname;
- if (strlen (name + 1) != len || !STREQN (dname, name + 1, len))
- error ("name of destructor must equal name of class");
+ if (strlen (name + 1) != len || strncmp (dname, name + 1, len) != 0)
+ error (_("name of destructor must equal name of class"));
else
return 1;
}
}
/* Helper function for check_field: Given TYPE, a structure/union,
- return 1 if the component named NAME from the ultimate
- target structure/union is defined, otherwise, return 0. */
+ return 1 if the component named NAME from the ultimate target
+ structure/union is defined, otherwise, return 0. */
static int
-check_field_in (register struct type *type, const char *name)
+check_field_in (struct type *type, const char *name)
{
- register int i;
+ int i;
for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--)
{
return 1;
}
- /* C++: If it was not found as a data field, then try to
- return it as a pointer to a method. */
+ /* C++: If it was not found as a data field, then try to return it
+ as a pointer to a method. */
/* Destructors are a special case. */
if (destructor_name_p (name, type))
/* C++: Given ARG1, a value of type (pointer to a)* structure/union,
- return 1 if the component named NAME from the ultimate
- target structure/union is defined, otherwise, return 0. */
+ return 1 if the component named NAME from the ultimate target
+ structure/union is defined, otherwise, return 0. */
int
check_field (struct value *arg1, const char *name)
{
- register struct type *t;
+ struct type *t;
- COERCE_ARRAY (arg1);
+ arg1 = coerce_array (arg1);
- t = VALUE_TYPE (arg1);
+ t = value_type (arg1);
/* Follow pointers until we get to a non-pointer. */
for (;;)
{
CHECK_TYPEDEF (t);
- if (TYPE_CODE (t) != TYPE_CODE_PTR && TYPE_CODE (t) != TYPE_CODE_REF)
+ if (TYPE_CODE (t) != TYPE_CODE_PTR
+ && TYPE_CODE (t) != TYPE_CODE_REF)
break;
t = TYPE_TARGET_TYPE (t);
}
- if (TYPE_CODE (t) == TYPE_CODE_MEMBER)
- error ("not implemented: member type in check_field");
-
if (TYPE_CODE (t) != TYPE_CODE_STRUCT
&& TYPE_CODE (t) != TYPE_CODE_UNION)
- error ("Internal error: `this' is not an aggregate");
+ error (_("Internal error: `this' is not an aggregate"));
return check_field_in (t, name);
}
/* C++: Given an aggregate type CURTYPE, and a member name NAME,
- return the address of this member as a "pointer to member"
- type. If INTYPE is non-null, then it will be the type
- of the member we are looking for. This will help us resolve
- "pointers to member functions". This function is used
- to resolve user expressions of the form "DOMAIN::NAME". */
+ return the appropriate member (or the address of the member, if
+ WANT_ADDRESS). This function is used to resolve user expressions
+ of the form "DOMAIN::NAME". For more details on what happens, see
+ the comment before value_struct_elt_for_reference. */
struct value *
+value_aggregate_elt (struct type *curtype,
+ char *name, int want_address,
+ enum noside noside)
+{
+ switch (TYPE_CODE (curtype))
+ {
+ case TYPE_CODE_STRUCT:
+ case TYPE_CODE_UNION:
+ return value_struct_elt_for_reference (curtype, 0, curtype,
+ name, NULL,
+ want_address, noside);
+ case TYPE_CODE_NAMESPACE:
+ return value_namespace_elt (curtype, name,
+ want_address, noside);
+ default:
+ internal_error (__FILE__, __LINE__,
+ _("non-aggregate type in value_aggregate_elt"));
+ }
+}
+
+/* C++: Given an aggregate type CURTYPE, and a member name NAME,
+ return the address of this member as a "pointer to member" type.
+ If INTYPE is non-null, then it will be the type of the member we
+ are looking for. This will help us resolve "pointers to member
+ functions". This function is used to resolve user expressions of
+ the form "DOMAIN::NAME". */
+
+static struct value *
value_struct_elt_for_reference (struct type *domain, int offset,
struct type *curtype, char *name,
- struct type *intype)
+ struct type *intype,
+ int want_address,
+ enum noside noside)
{
- register struct type *t = curtype;
- register int i;
- struct value *v;
+ struct type *t = curtype;
+ int i;
+ struct value *v, *result;
if (TYPE_CODE (t) != TYPE_CODE_STRUCT
&& TYPE_CODE (t) != TYPE_CODE_UNION)
- error ("Internal error: non-aggregate type to value_struct_elt_for_reference");
+ error (_("Internal error: non-aggregate type to value_struct_elt_for_reference"));
for (i = TYPE_NFIELDS (t) - 1; i >= TYPE_N_BASECLASSES (t); i--)
{
char *t_field_name = TYPE_FIELD_NAME (t, i);
- if (t_field_name && STREQ (t_field_name, name))
+ if (t_field_name && strcmp (t_field_name, name) == 0)
{
if (TYPE_FIELD_STATIC (t, i))
{
v = value_static_field (t, i);
if (v == NULL)
- error ("static field %s has been optimized out",
+ error (_("static field %s has been optimized out"),
name);
+ if (want_address)
+ v = value_addr (v);
return v;
}
if (TYPE_FIELD_PACKED (t, i))
- error ("pointers to bitfield members not allowed");
-
- return value_from_longest
- (lookup_reference_type (lookup_member_type (TYPE_FIELD_TYPE (t, i),
- domain)),
- offset + (LONGEST) (TYPE_FIELD_BITPOS (t, i) >> 3));
+ error (_("pointers to bitfield members not allowed"));
+
+ if (want_address)
+ return value_from_longest
+ (lookup_memberptr_type (TYPE_FIELD_TYPE (t, i), domain),
+ offset + (LONGEST) (TYPE_FIELD_BITPOS (t, i) >> 3));
+ else if (noside == EVAL_AVOID_SIDE_EFFECTS)
+ return allocate_value (TYPE_FIELD_TYPE (t, i));
+ else
+ error (_("Cannot reference non-static field \"%s\""), name);
}
}
- /* C++: If it was not found as a data field, then try to
- return it as a pointer to a method. */
+ /* C++: If it was not found as a data field, then try to return it
+ as a pointer to a method. */
/* Destructors are a special case. */
if (destructor_name_p (name, t))
{
- error ("member pointers to destructors not implemented yet");
+ error (_("member pointers to destructors not implemented yet"));
}
/* Perform all necessary dereferencing. */
char *t_field_name = TYPE_FN_FIELDLIST_NAME (t, i);
char dem_opname[64];
- if (strncmp (t_field_name, "__", 2) == 0 ||
- strncmp (t_field_name, "op", 2) == 0 ||
- strncmp (t_field_name, "type", 4) == 0)
+ if (strncmp (t_field_name, "__", 2) == 0
+ || strncmp (t_field_name, "op", 2) == 0
+ || strncmp (t_field_name, "type", 4) == 0)
{
- if (cplus_demangle_opname (t_field_name, dem_opname, DMGL_ANSI))
+ if (cplus_demangle_opname (t_field_name,
+ dem_opname, DMGL_ANSI))
t_field_name = dem_opname;
- else if (cplus_demangle_opname (t_field_name, dem_opname, 0))
+ else if (cplus_demangle_opname (t_field_name,
+ dem_opname, 0))
t_field_name = dem_opname;
}
- if (t_field_name && STREQ (t_field_name, name))
+ if (t_field_name && strcmp (t_field_name, name) == 0)
{
int j = TYPE_FN_FIELDLIST_LENGTH (t, i);
struct fn_field *f = TYPE_FN_FIELDLIST1 (t, i);
check_stub_method_group (t, i);
if (intype == 0 && j > 1)
- error ("non-unique member `%s' requires type instantiation", name);
+ error (_("non-unique member `%s' requires type instantiation"), name);
if (intype)
{
while (j--)
if (TYPE_FN_FIELD_TYPE (f, j) == intype)
break;
if (j < 0)
- error ("no member function matches that type instantiation");
+ error (_("no member function matches that type instantiation"));
}
else
j = 0;
+ if (TYPE_FN_FIELD_STATIC_P (f, j))
+ {
+ struct symbol *s =
+ lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, j),
+ 0, VAR_DOMAIN, 0, NULL);
+ if (s == NULL)
+ return NULL;
+
+ if (want_address)
+ return value_addr (read_var_value (s, 0));
+ else
+ return read_var_value (s, 0);
+ }
+
if (TYPE_FN_FIELD_VIRTUAL_P (f, j))
{
- return value_from_longest
- (lookup_reference_type
- (lookup_member_type (TYPE_FN_FIELD_TYPE (f, j),
- domain)),
- (LONGEST) METHOD_PTR_FROM_VOFFSET (TYPE_FN_FIELD_VOFFSET (f, j)));
+ if (want_address)
+ {
+ result = allocate_value
+ (lookup_methodptr_type (TYPE_FN_FIELD_TYPE (f, j)));
+ cplus_make_method_ptr (value_contents_writeable (result),
+ TYPE_FN_FIELD_VOFFSET (f, j), 1);
+ }
+ else if (noside == EVAL_AVOID_SIDE_EFFECTS)
+ return allocate_value (TYPE_FN_FIELD_TYPE (f, j));
+ else
+ error (_("Cannot reference virtual member function \"%s\""),
+ name);
}
else
{
- struct symbol *s = lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, j),
- 0, VAR_NAMESPACE, 0, NULL);
+ struct symbol *s =
+ lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, j),
+ 0, VAR_DOMAIN, 0, NULL);
if (s == NULL)
- {
- v = 0;
- }
+ return NULL;
+
+ v = read_var_value (s, 0);
+ if (!want_address)
+ result = v;
else
{
- v = read_var_value (s, 0);
-#if 0
- VALUE_TYPE (v) = lookup_reference_type
- (lookup_member_type (TYPE_FN_FIELD_TYPE (f, j),
- domain));
-#endif
+ result = allocate_value (lookup_methodptr_type (TYPE_FN_FIELD_TYPE (f, j)));
+ cplus_make_method_ptr (value_contents_writeable (result),
+ VALUE_ADDRESS (v), 0);
}
- return v;
}
+ return result;
}
}
for (i = TYPE_N_BASECLASSES (t) - 1; i >= 0; i--)
v = value_struct_elt_for_reference (domain,
offset + base_offset,
TYPE_BASECLASS (t, i),
- name,
- intype);
+ name, intype,
+ want_address, noside);
if (v)
return v;
}
- return 0;
+
+ /* As a last chance, pretend that CURTYPE is a namespace, and look
+ it up that way; this (frequently) works for types nested inside
+ classes. */
+
+ return value_maybe_namespace_elt (curtype, name,
+ want_address, noside);
+}
+
+/* C++: Return the member NAME of the namespace given by the type
+ CURTYPE. */
+
+static struct value *
+value_namespace_elt (const struct type *curtype,
+ char *name, int want_address,
+ enum noside noside)
+{
+ struct value *retval = value_maybe_namespace_elt (curtype, name,
+ want_address,
+ noside);
+
+ if (retval == NULL)
+ error (_("No symbol \"%s\" in namespace \"%s\"."),
+ name, TYPE_TAG_NAME (curtype));
+
+ return retval;
+}
+
+/* A helper function used by value_namespace_elt and
+ value_struct_elt_for_reference. It looks up NAME inside the
+ context CURTYPE; this works if CURTYPE is a namespace or if CURTYPE
+ is a class and NAME refers to a type in CURTYPE itself (as opposed
+ to, say, some base class of CURTYPE). */
+
+static struct value *
+value_maybe_namespace_elt (const struct type *curtype,
+ char *name, int want_address,
+ enum noside noside)
+{
+ const char *namespace_name = TYPE_TAG_NAME (curtype);
+ struct symbol *sym;
+ struct value *result;
+
+ sym = cp_lookup_symbol_namespace (namespace_name, name, NULL,
+ get_selected_block (0),
+ VAR_DOMAIN, NULL);
+
+ if (sym == NULL)
+ return NULL;
+ else if ((noside == EVAL_AVOID_SIDE_EFFECTS)
+ && (SYMBOL_CLASS (sym) == LOC_TYPEDEF))
+ result = allocate_value (SYMBOL_TYPE (sym));
+ else
+ result = value_of_variable (sym, get_selected_block (0));
+
+ if (result && want_address)
+ result = value_addr (result);
+
+ return result;
}
+/* Given a pointer value V, find the real (RTTI) type of the object it
+ points to.
-/* Given a pointer value V, find the real (RTTI) type
- of the object it points to.
Other parameters FULL, TOP, USING_ENC as with value_rtti_type()
- and refer to the values computed for the object pointed to. */
+ and refer to the values computed for the object pointed to. */
struct type *
-value_rtti_target_type (struct value *v, int *full, int *top, int *using_enc)
+value_rtti_target_type (struct value *v, int *full,
+ int *top, int *using_enc)
{
struct value *target;
if that is different from the enclosing type, create a new value
using the real run-time type as the enclosing type (and of the same
type as ARGP) and return it, with the embedded offset adjusted to
- be the correct offset to the enclosed object
- RTYPE is the type, and XFULL, XTOP, and XUSING_ENC are the other
- parameters, computed by value_rtti_type(). If these are available,
- they can be supplied and a second call to value_rtti_type() is avoided.
- (Pass RTYPE == NULL if they're not available */
+ be the correct offset to the enclosed object. RTYPE is the type,
+ and XFULL, XTOP, and XUSING_ENC are the other parameters, computed
+ by value_rtti_type(). If these are available, they can be supplied
+ and a second call to value_rtti_type() is avoided. (Pass RTYPE ==
+ NULL if they're not available. */
struct value *
-value_full_object (struct value *argp, struct type *rtype, int xfull, int xtop,
+value_full_object (struct value *argp,
+ struct type *rtype,
+ int xfull, int xtop,
int xusing_enc)
{
struct type *real_type;
else
real_type = value_rtti_type (argp, &full, &top, &using_enc);
- /* If no RTTI data, or if object is already complete, do nothing */
- if (!real_type || real_type == VALUE_ENCLOSING_TYPE (argp))
+ /* If no RTTI data, or if object is already complete, do nothing. */
+ if (!real_type || real_type == value_enclosing_type (argp))
return argp;
/* If we have the full object, but for some reason the enclosing
- type is wrong, set it *//* pai: FIXME -- sounds iffy */
+ type is wrong, set it. */
+ /* pai: FIXME -- sounds iffy */
if (full)
{
argp = value_change_enclosing_type (argp, real_type);
/* Check if object is in memory */
if (VALUE_LVAL (argp) != lval_memory)
{
- warning ("Couldn't retrieve complete object of RTTI type %s; object may be in register(s).", TYPE_NAME (real_type));
+ warning (_("Couldn't retrieve complete object of RTTI type %s; object may be in register(s)."),
+ TYPE_NAME (real_type));
return argp;
}
- /* All other cases -- retrieve the complete object */
- /* Go back by the computed top_offset from the beginning of the object,
- adjusting for the embedded offset of argp if that's what value_rtti_type
- used for its computation. */
+ /* All other cases -- retrieve the complete object. */
+ /* Go back by the computed top_offset from the beginning of the
+ object, adjusting for the embedded offset of argp if that's what
+ value_rtti_type used for its computation. */
new_val = value_at_lazy (real_type, VALUE_ADDRESS (argp) - top +
- (using_enc ? 0 : VALUE_EMBEDDED_OFFSET (argp)),
- VALUE_BFD_SECTION (argp));
- VALUE_TYPE (new_val) = VALUE_TYPE (argp);
- VALUE_EMBEDDED_OFFSET (new_val) = using_enc ? top + VALUE_EMBEDDED_OFFSET (argp) : top;
+ (using_enc ? 0 : value_embedded_offset (argp)));
+ deprecated_set_value_type (new_val, value_type (argp));
+ set_value_embedded_offset (new_val, (using_enc
+ ? top + value_embedded_offset (argp)
+ : top));
return new_val;
}
-
-
/* Return the value of the local variable, if one exists.
Flag COMPLAIN signals an error if the request is made in an
inappropriate context. */
{
struct symbol *func, *sym;
struct block *b;
- int i;
struct value * ret;
+ struct frame_info *frame;
- if (deprecated_selected_frame == 0)
+ if (complain)
+ frame = get_selected_frame (_("no frame selected"));
+ else
{
- if (complain)
- error ("no frame selected");
- else
+ frame = deprecated_safe_get_selected_frame ();
+ if (frame == 0)
return 0;
}
- func = get_frame_function (deprecated_selected_frame);
+ func = get_frame_function (frame);
if (!func)
{
if (complain)
- error ("no `%s' in nameless context", name);
+ error (_("no `%s' in nameless context"), name);
else
return 0;
}
b = SYMBOL_BLOCK_VALUE (func);
- i = BLOCK_NSYMS (b);
- if (i <= 0)
+ if (dict_empty (BLOCK_DICT (b)))
{
if (complain)
- error ("no args, no `%s'", name);
+ error (_("no args, no `%s'"), name);
else
return 0;
}
/* Calling lookup_block_symbol is necessary to get the LOC_REGISTER
symbol instead of the LOC_ARG one (if both exist). */
- sym = lookup_block_symbol (b, name, NULL, VAR_NAMESPACE);
+ sym = lookup_block_symbol (b, name, NULL, VAR_DOMAIN);
if (sym == NULL)
{
if (complain)
- error ("current stack frame does not contain a variable named `%s'", name);
+ error (_("current stack frame does not contain a variable named `%s'"),
+ name);
else
return NULL;
}
- ret = read_var_value (sym, deprecated_selected_frame);
+ ret = read_var_value (sym, frame);
if (ret == 0 && complain)
- error ("`%s' argument unreadable", name);
+ error (_("`%s' argument unreadable"), name);
return ret;
}
return value_of_local ("this", complain);
}
-/* Create a slice (sub-string, sub-array) of ARRAY, that is LENGTH elements
- long, starting at LOWBOUND. The result has the same lower bound as
- the original ARRAY. */
+/* Create a slice (sub-string, sub-array) of ARRAY, that is LENGTH
+ elements long, starting at LOWBOUND. The result has the same lower
+ bound as the original ARRAY. */
struct value *
value_slice (struct value *array, int lowbound, int length)
LONGEST lowerbound, upperbound;
struct value *slice;
struct type *array_type;
- array_type = check_typedef (VALUE_TYPE (array));
- COERCE_VARYING_ARRAY (array, array_type);
+
+ array_type = check_typedef (value_type (array));
if (TYPE_CODE (array_type) != TYPE_CODE_ARRAY
&& TYPE_CODE (array_type) != TYPE_CODE_STRING
&& TYPE_CODE (array_type) != TYPE_CODE_BITSTRING)
- error ("cannot take slice of non-array");
+ error (_("cannot take slice of non-array"));
+
range_type = TYPE_INDEX_TYPE (array_type);
if (get_discrete_bounds (range_type, &lowerbound, &upperbound) < 0)
- error ("slice from bad array or bitstring");
+ error (_("slice from bad array or bitstring"));
+
if (lowbound < lowerbound || length < 0
|| lowbound + length - 1 > upperbound)
- error ("slice out of range");
+ error (_("slice out of range"));
+
/* FIXME-type-allocation: need a way to free this type when we are
done with it. */
slice_range_type = create_range_type ((struct type *) NULL,
TYPE_TARGET_TYPE (range_type),
- lowbound, lowbound + length - 1);
+ lowbound,
+ lowbound + length - 1);
if (TYPE_CODE (array_type) == TYPE_CODE_BITSTRING)
{
int i;
- slice_type = create_set_type ((struct type *) NULL, slice_range_type);
+
+ slice_type = create_set_type ((struct type *) NULL,
+ slice_range_type);
TYPE_CODE (slice_type) = TYPE_CODE_BITSTRING;
slice = value_zero (slice_type, not_lval);
+
for (i = 0; i < length; i++)
{
int element = value_bit_index (array_type,
- VALUE_CONTENTS (array),
+ value_contents (array),
lowbound + i);
if (element < 0)
- error ("internal error accessing bitstring");
+ error (_("internal error accessing bitstring"));
else if (element > 0)
{
int j = i % TARGET_CHAR_BIT;
- if (BITS_BIG_ENDIAN)
+ if (gdbarch_bits_big_endian (current_gdbarch))
j = TARGET_CHAR_BIT - 1 - j;
- VALUE_CONTENTS_RAW (slice)[i / TARGET_CHAR_BIT] |= (1 << j);
+ value_contents_raw (slice)[i / TARGET_CHAR_BIT] |= (1 << j);
}
}
- /* We should set the address, bitssize, and bitspos, so the clice
- can be used on the LHS, but that may require extensions to
- value_assign. For now, just leave as a non_lval. FIXME. */
+ /* We should set the address, bitssize, and bitspos, so the
+ slice can be used on the LHS, but that may require extensions
+ to value_assign. For now, just leave as a non_lval.
+ FIXME. */
}
else
{
struct type *element_type = TYPE_TARGET_TYPE (array_type);
- LONGEST offset
- = (lowbound - lowerbound) * TYPE_LENGTH (check_typedef (element_type));
- slice_type = create_array_type ((struct type *) NULL, element_type,
+ LONGEST offset =
+ (lowbound - lowerbound) * TYPE_LENGTH (check_typedef (element_type));
+
+ slice_type = create_array_type ((struct type *) NULL,
+ element_type,
slice_range_type);
TYPE_CODE (slice_type) = TYPE_CODE (array_type);
+
slice = allocate_value (slice_type);
- if (VALUE_LAZY (array))
- VALUE_LAZY (slice) = 1;
+ if (value_lazy (array))
+ set_value_lazy (slice, 1);
else
- memcpy (VALUE_CONTENTS (slice), VALUE_CONTENTS (array) + offset,
+ memcpy (value_contents_writeable (slice),
+ value_contents (array) + offset,
TYPE_LENGTH (slice_type));
+
if (VALUE_LVAL (array) == lval_internalvar)
VALUE_LVAL (slice) = lval_internalvar_component;
else
VALUE_LVAL (slice) = VALUE_LVAL (array);
+
VALUE_ADDRESS (slice) = VALUE_ADDRESS (array);
- VALUE_OFFSET (slice) = VALUE_OFFSET (array) + offset;
+ VALUE_FRAME_ID (slice) = VALUE_FRAME_ID (array);
+ set_value_offset (slice, value_offset (array) + offset);
}
return slice;
}
-/* Create a value for a FORTRAN complex number. Currently most of
- the time values are coerced to COMPLEX*16 (i.e. a complex number
+/* Create a value for a FORTRAN complex number. Currently most of the
+ time values are coerced to COMPLEX*16 (i.e. a complex number
composed of 2 doubles. This really should be a smarter routine
that figures out precision inteligently as opposed to assuming
- doubles. FIXME: fmb */
+ doubles. FIXME: fmb */
struct value *
-value_literal_complex (struct value *arg1, struct value *arg2, struct type *type)
+value_literal_complex (struct value *arg1,
+ struct value *arg2,
+ struct type *type)
{
struct value *val;
struct type *real_type = TYPE_TARGET_TYPE (type);
arg1 = value_cast (real_type, arg1);
arg2 = value_cast (real_type, arg2);
- memcpy (VALUE_CONTENTS_RAW (val),
- VALUE_CONTENTS (arg1), TYPE_LENGTH (real_type));
- memcpy (VALUE_CONTENTS_RAW (val) + TYPE_LENGTH (real_type),
- VALUE_CONTENTS (arg2), TYPE_LENGTH (real_type));
+ memcpy (value_contents_raw (val),
+ value_contents (arg1), TYPE_LENGTH (real_type));
+ memcpy (value_contents_raw (val) + TYPE_LENGTH (real_type),
+ value_contents (arg2), TYPE_LENGTH (real_type));
return val;
}
-/* Cast a value into the appropriate complex data type. */
+/* Cast a value into the appropriate complex data type. */
static struct value *
cast_into_complex (struct type *type, struct value *val)
{
struct type *real_type = TYPE_TARGET_TYPE (type);
- if (TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_COMPLEX)
+
+ if (TYPE_CODE (value_type (val)) == TYPE_CODE_COMPLEX)
{
- struct type *val_real_type = TYPE_TARGET_TYPE (VALUE_TYPE (val));
+ struct type *val_real_type = TYPE_TARGET_TYPE (value_type (val));
struct value *re_val = allocate_value (val_real_type);
struct value *im_val = allocate_value (val_real_type);
- memcpy (VALUE_CONTENTS_RAW (re_val),
- VALUE_CONTENTS (val), TYPE_LENGTH (val_real_type));
- memcpy (VALUE_CONTENTS_RAW (im_val),
- VALUE_CONTENTS (val) + TYPE_LENGTH (val_real_type),
+ memcpy (value_contents_raw (re_val),
+ value_contents (val), TYPE_LENGTH (val_real_type));
+ memcpy (value_contents_raw (im_val),
+ value_contents (val) + TYPE_LENGTH (val_real_type),
TYPE_LENGTH (val_real_type));
return value_literal_complex (re_val, im_val, type);
}
- else if (TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_FLT
- || TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_INT)
- return value_literal_complex (val, value_zero (real_type, not_lval), type);
+ else if (TYPE_CODE (value_type (val)) == TYPE_CODE_FLT
+ || TYPE_CODE (value_type (val)) == TYPE_CODE_INT)
+ return value_literal_complex (val,
+ value_zero (real_type, not_lval),
+ type);
else
- error ("cannot cast non-number to complex");
+ error (_("cannot cast non-number to complex"));
}
void
_initialize_valops (void)
{
-#if 0
- add_show_from_set
- (add_set_cmd ("abandon", class_support, var_boolean, (char *) &auto_abandon,
- "Set automatic abandonment of expressions upon failure.",
- &setlist),
- &showlist);
-#endif
-
- add_show_from_set
- (add_set_cmd ("overload-resolution", class_support, var_boolean, (char *) &overload_resolution,
- "Set overload resolution in evaluating C++ functions.",
- &setlist),
- &showlist);
+ add_setshow_boolean_cmd ("overload-resolution", class_support,
+ &overload_resolution, _("\
+Set overload resolution in evaluating C++ functions."), _("\
+Show overload resolution in evaluating C++ functions."),
+ NULL, NULL,
+ show_overload_resolution,
+ &setlist, &showlist);
overload_resolution = 1;
-
- add_show_from_set (
- add_set_cmd ("unwindonsignal", no_class, var_boolean,
- (char *) &unwind_on_signal_p,
-"Set unwinding of stack if a signal is received while in a call dummy.\n\
-The unwindonsignal lets the user determine what gdb should do if a signal\n\
-is received while in a function called from gdb (call dummy). If set, gdb\n\
-unwinds the stack and restore the context to what as it was before the call.\n\
-The default is to stop in the frame where the signal was received.", &setlist),
- &showlist);
-
- add_show_from_set
- (add_set_cmd ("coerce-float-to-double", class_obscure, var_boolean,
- (char *) &coerce_float_to_double,
- "Set coercion of floats to doubles when calling functions\n"
- "Variables of type float should generally be converted to doubles before\n"
- "calling an unprototyped function, and left alone when calling a prototyped\n"
- "function. However, some older debug info formats do not provide enough\n"
- "information to determine that a function is prototyped. If this flag is\n"
- "set, GDB will perform the conversion for a function it considers\n"
- "unprototyped.\n"
- "The default is to perform the conversion.\n",
- &setlist),
- &showlist);
- coerce_float_to_double = 1;
}
projects / deliverable / binutils-gdb.git / blobdiff