/* Support for printing C values for GDB, the GNU debugger.
- Copyright 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997
- Free Software Foundation, Inc.
-This file is part of GDB.
+ Copyright 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996,
+ 1997, 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
-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
-(at your option) any later version.
+ This file is part of GDB.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ 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
+ (at your option) any later version.
-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. */
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#include "defs.h"
+#include "gdb_string.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "value.h"
-#include "demangle.h"
#include "valprint.h"
#include "language.h"
#include "c-lang.h"
-
+#include "cp-abi.h"
\f
+
+/* Print function pointer with inferior address ADDRESS onto stdio
+ stream STREAM. */
+
+static void
+print_function_pointer_address (CORE_ADDR address, struct ui_file *stream)
+{
+ CORE_ADDR func_addr = CONVERT_FROM_FUNC_PTR_ADDR (address);
+
+ /* If the function pointer is represented by a description, print the
+ address of the description. */
+ if (addressprint && func_addr != address)
+ {
+ fputs_filtered ("@", stream);
+ print_address_numeric (address, 1, stream);
+ fputs_filtered (": ", stream);
+ }
+ print_address_demangle (func_addr, stream, demangle);
+}
+
+
/* Print data of type TYPE located at VALADDR (within GDB), which came from
the inferior at address ADDRESS, onto stdio stream STREAM according to
FORMAT (a letter or 0 for natural format). The data at VALADDR is in
The PRETTY parameter controls prettyprinting. */
int
-c_val_print (type, valaddr, address, stream, format, deref_ref, recurse,
- pretty)
- struct type *type;
- char *valaddr;
- CORE_ADDR address;
- GDB_FILE *stream;
- int format;
- int deref_ref;
- int recurse;
- enum val_prettyprint pretty;
+c_val_print (struct type *type, char *valaddr, int embedded_offset,
+ CORE_ADDR address, struct ui_file *stream, int format,
+ int deref_ref, int recurse, enum val_prettyprint pretty)
{
- register unsigned int i = 0; /* Number of characters printed */
+ register unsigned int i = 0; /* Number of characters printed */
unsigned len;
struct type *elttype;
unsigned eltlen;
switch (TYPE_CODE (type))
{
case TYPE_CODE_ARRAY:
+ elttype = check_typedef (TYPE_TARGET_TYPE (type));
if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0)
{
- elttype = check_typedef (TYPE_TARGET_TYPE (type));
eltlen = TYPE_LENGTH (elttype);
len = TYPE_LENGTH (type) / eltlen;
if (prettyprint_arrays)
&& (format == 0 || format == 's'))
{
/* If requested, look for the first null char and only print
- elements up to it. */
+ elements up to it. */
if (stop_print_at_null)
{
- int temp_len;
-
+ unsigned int temp_len;
+
/* Look for a NULL char. */
for (temp_len = 0;
- valaddr[temp_len]
+ (valaddr + embedded_offset)[temp_len]
&& temp_len < len && temp_len < print_max;
temp_len++);
len = temp_len;
}
-
- LA_PRINT_STRING (stream, valaddr, len, 0);
+
+ LA_PRINT_STRING (stream, valaddr + embedded_offset, len, eltlen, 0);
i = len;
}
else
{
fprintf_filtered (stream, "{");
/* If this is a virtual function table, print the 0th
- entry specially, and the rest of the members normally. */
+ entry specially, and the rest of the members normally. */
if (cp_is_vtbl_ptr_type (elttype))
{
i = 1;
{
i = 0;
}
- val_print_array_elements (type, valaddr, address, stream,
- format, deref_ref, recurse, pretty, i);
+ val_print_array_elements (type, valaddr + embedded_offset, address, stream,
+ format, deref_ref, recurse, pretty, i);
fprintf_filtered (stream, "}");
}
break;
case TYPE_CODE_PTR:
if (format && format != 's')
{
- print_scalar_formatted (valaddr, type, format, 0, stream);
+ print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
break;
}
- if (vtblprint && cp_is_vtbl_ptr_type(type))
+ if (vtblprint && cp_is_vtbl_ptr_type (type))
{
- /* Print the unmangled name if desired. */
+ /* Print the unmangled name if desired. */
/* Print vtable entry - we only get here if we ARE using
-fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */
- print_address_demangle(extract_address (valaddr, TYPE_LENGTH (type)),
- stream, demangle);
+ CORE_ADDR addr
+ = extract_typed_address (valaddr + embedded_offset, type);
+ print_function_pointer_address (addr, stream);
break;
}
elttype = check_typedef (TYPE_TARGET_TYPE (type));
if (TYPE_CODE (elttype) == TYPE_CODE_METHOD)
{
- cp_print_class_method (valaddr, type, stream);
+ cp_print_class_method (valaddr + embedded_offset, type, stream);
}
else if (TYPE_CODE (elttype) == TYPE_CODE_MEMBER)
{
- cp_print_class_member (valaddr,
+ cp_print_class_member (valaddr + embedded_offset,
TYPE_DOMAIN_TYPE (TYPE_TARGET_TYPE (type)),
stream, "&");
}
else
{
- addr = unpack_pointer (type, valaddr);
+ addr = unpack_pointer (type, valaddr + embedded_offset);
print_unpacked_pointer:
- elttype = check_typedef (TYPE_TARGET_TYPE (type));
if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
{
/* Try to print what function it points to. */
- print_address_demangle (addr, stream, demangle);
+ print_function_pointer_address (addr, stream);
/* Return value is irrelevant except for string pointers. */
return (0);
}
/* For a pointer to char or unsigned char, also print the string
pointed to, unless pointer is null. */
+ /* FIXME: need to handle wchar_t here... */
+
if (TYPE_LENGTH (elttype) == 1
&& TYPE_CODE (elttype) == TYPE_CODE_INT
&& (format == 0 || format == 's')
&& addr != 0)
{
- i = val_print_string (addr, 0, stream);
+ i = val_print_string (addr, -1, TYPE_LENGTH (elttype), stream);
}
- else if (cp_is_vtbl_member(type))
- {
+ else if (cp_is_vtbl_member (type))
+ {
/* print vtbl's nicely */
- CORE_ADDR vt_address = unpack_pointer (type, valaddr);
+ CORE_ADDR vt_address = unpack_pointer (type, valaddr + embedded_offset);
struct minimal_symbol *msymbol =
- lookup_minimal_symbol_by_pc (vt_address);
+ lookup_minimal_symbol_by_pc (vt_address);
if ((msymbol != NULL) &&
(vt_address == SYMBOL_VALUE_ADDRESS (msymbol)))
{
fputs_filtered (" <", stream);
- fputs_filtered (SYMBOL_SOURCE_NAME (msymbol), stream);
+ fputs_filtered (SYMBOL_PRINT_NAME (msymbol), stream);
fputs_filtered (">", stream);
}
if (vt_address && vtblprint)
- {
- value_ptr vt_val;
- struct symbol *wsym = (struct symbol *)NULL;
- struct type *wtype;
+ {
+ struct value *vt_val;
+ struct symbol *wsym = (struct symbol *) NULL;
+ struct type *wtype;
struct symtab *s;
- struct block *block = (struct block *)NULL;
+ struct block *block = (struct block *) NULL;
int is_this_fld;
if (msymbol != NULL)
- wsym = lookup_symbol (SYMBOL_NAME(msymbol), block,
- VAR_NAMESPACE, &is_this_fld, &s);
-
+ wsym = lookup_symbol (DEPRECATED_SYMBOL_NAME (msymbol), block,
+ VAR_NAMESPACE, &is_this_fld, &s);
+
if (wsym)
{
- wtype = SYMBOL_TYPE(wsym);
+ wtype = SYMBOL_TYPE (wsym);
}
else
{
- wtype = TYPE_TARGET_TYPE(type);
+ wtype = TYPE_TARGET_TYPE (type);
}
vt_val = value_at (wtype, vt_address, NULL);
- val_print (VALUE_TYPE (vt_val), VALUE_CONTENTS (vt_val),
+ val_print (VALUE_TYPE (vt_val), VALUE_CONTENTS (vt_val), 0,
VALUE_ADDRESS (vt_val), stream, format,
deref_ref, recurse + 1, pretty);
if (pretty)
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 + 2 * recurse, stream);
}
- }
- }
+ }
+ }
/* Return number of characters printed, including the terminating
'\0' if we reached the end. val_print_string takes care including
case TYPE_CODE_REF:
elttype = check_typedef (TYPE_TARGET_TYPE (type));
if (TYPE_CODE (elttype) == TYPE_CODE_MEMBER)
- {
- cp_print_class_member (valaddr,
+ {
+ cp_print_class_member (valaddr + embedded_offset,
TYPE_DOMAIN_TYPE (elttype),
stream, "");
break;
}
if (addressprint)
- {
+ {
+ CORE_ADDR addr
+ = extract_typed_address (valaddr + embedded_offset, type);
fprintf_filtered (stream, "@");
- print_address_numeric
- (extract_address (valaddr,
- TARGET_PTR_BIT / HOST_CHAR_BIT), 1, stream);
+ print_address_numeric (addr, 1, stream);
if (deref_ref)
fputs_filtered (": ", stream);
- }
+ }
/* De-reference the reference. */
if (deref_ref)
{
if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
{
- value_ptr deref_val =
- value_at
- (TYPE_TARGET_TYPE (type),
- unpack_pointer (lookup_pointer_type (builtin_type_void),
- valaddr),
- NULL);
+ struct value *deref_val =
+ value_at
+ (TYPE_TARGET_TYPE (type),
+ unpack_pointer (lookup_pointer_type (builtin_type_void),
+ valaddr + embedded_offset),
+ NULL);
val_print (VALUE_TYPE (deref_val),
VALUE_CONTENTS (deref_val),
- VALUE_ADDRESS (deref_val), stream, format,
- deref_ref, recurse + 1, pretty);
+ 0,
+ VALUE_ADDRESS (deref_val),
+ stream,
+ format,
+ deref_ref,
+ recurse,
+ pretty);
}
else
fputs_filtered ("???", stream);
}
/* Fall through. */
case TYPE_CODE_STRUCT:
- if (vtblprint && cp_is_vtbl_ptr_type(type))
+ /*FIXME: Abstract this away */
+ if (vtblprint && cp_is_vtbl_ptr_type (type))
{
- /* Print the unmangled name if desired. */
+ /* Print the unmangled name if desired. */
/* Print vtable entry - we only get here if NOT using
-fvtable_thunks. (Otherwise, look under TYPE_CODE_PTR.) */
- print_address_demangle (extract_address (
- valaddr + TYPE_FIELD_BITPOS (type, VTBL_FNADDR_OFFSET) / 8,
- TYPE_LENGTH (TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET))),
- stream, demangle);
+ int offset = (embedded_offset +
+ TYPE_FIELD_BITPOS (type, VTBL_FNADDR_OFFSET) / 8);
+ struct type *field_type = TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET);
+ CORE_ADDR addr
+ = extract_typed_address (valaddr + offset, field_type);
+
+ print_function_pointer_address (addr, stream);
}
else
- cp_print_value_fields (type, valaddr, address, stream, format,
+ cp_print_value_fields (type, type, valaddr, embedded_offset, address, stream, format,
recurse, pretty, NULL, 0);
break;
case TYPE_CODE_ENUM:
if (format)
{
- print_scalar_formatted (valaddr, type, format, 0, stream);
+ print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
break;
}
len = TYPE_NFIELDS (type);
- val = unpack_long (type, valaddr);
+ val = unpack_long (type, valaddr + embedded_offset);
for (i = 0; i < len; i++)
{
QUIT;
case TYPE_CODE_FUNC:
if (format)
{
- print_scalar_formatted (valaddr, type, format, 0, stream);
+ print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
break;
}
/* FIXME, we should consider, at least for ANSI C language, eliminating
- the distinction made between FUNCs and POINTERs to FUNCs. */
+ the distinction made between FUNCs and POINTERs to FUNCs. */
fprintf_filtered (stream, "{");
type_print (type, "", stream, -1);
fprintf_filtered (stream, "} ");
case TYPE_CODE_BOOL:
format = format ? format : output_format;
if (format)
- print_scalar_formatted (valaddr, type, format, 0, stream);
+ print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
else
{
- val = unpack_long (type, valaddr);
+ val = unpack_long (type, valaddr + embedded_offset);
if (val == 0)
fputs_filtered ("false", stream);
else if (val == 1)
case TYPE_CODE_RANGE:
/* FIXME: create_range_type does not set the unsigned bit in a
- range type (I think it probably should copy it from the target
- type), so we won't print values which are too large to
- fit in a signed integer correctly. */
+ range type (I think it probably should copy it from the target
+ type), so we won't print values which are too large to
+ fit in a signed integer correctly. */
/* FIXME: Doesn't handle ranges of enums correctly. (Can't just
- print with the target type, though, because the size of our type
- and the target type might differ). */
+ print with the target type, though, because the size of our type
+ and the target type might differ). */
/* FALLTHROUGH */
case TYPE_CODE_INT:
format = format ? format : output_format;
if (format)
{
- print_scalar_formatted (valaddr, type, format, 0, stream);
+ print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
}
else
{
- val_print_type_code_int (type, valaddr, stream);
+ val_print_type_code_int (type, valaddr + embedded_offset, stream);
/* C and C++ has no single byte int type, char is used instead.
Since we don't know whether the value is really intended to
be used as an integer or a character, print the character
if (TYPE_LENGTH (type) == 1)
{
fputs_filtered (" ", stream);
- LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr),
+ LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr + embedded_offset),
stream);
}
}
format = format ? format : output_format;
if (format)
{
- print_scalar_formatted (valaddr, type, format, 0, stream);
+ print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
}
else
{
- fprintf_filtered (stream, TYPE_UNSIGNED (type) ? "%u" : "%d",
- unpack_long (type, valaddr));
+ val = unpack_long (type, valaddr + embedded_offset);
+ if (TYPE_UNSIGNED (type))
+ fprintf_filtered (stream, "%u", (unsigned int) val);
+ else
+ fprintf_filtered (stream, "%d", (int) val);
fputs_filtered (" ", stream);
- LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr), stream);
+ LA_PRINT_CHAR ((unsigned char) val, stream);
}
break;
case TYPE_CODE_FLT:
if (format)
{
- print_scalar_formatted (valaddr, type, format, 0, stream);
+ print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
}
else
{
- print_floating (valaddr, type, stream);
+ print_floating (valaddr + embedded_offset, type, stream);
}
break;
+ case TYPE_CODE_METHOD:
+ {
+ struct value *v = value_at (type, address, NULL);
+ cp_print_class_method (VALUE_CONTENTS (value_addr (v)),
+ lookup_pointer_type (type), stream);
+ break;
+ }
+
case TYPE_CODE_VOID:
fprintf_filtered (stream, "void");
break;
case TYPE_CODE_UNDEF:
/* This happens (without TYPE_FLAG_STUB set) on systems which don't use
- dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
- and no complete type for struct foo in that file. */
+ dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
+ and no complete type for struct foo in that file. */
fprintf_filtered (stream, "<incomplete type>");
break;
+ case TYPE_CODE_COMPLEX:
+ if (format)
+ print_scalar_formatted (valaddr + embedded_offset,
+ TYPE_TARGET_TYPE (type),
+ format, 0, stream);
+ else
+ print_floating (valaddr + embedded_offset, TYPE_TARGET_TYPE (type),
+ stream);
+ fprintf_filtered (stream, " + ");
+ if (format)
+ print_scalar_formatted (valaddr + embedded_offset
+ + TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
+ TYPE_TARGET_TYPE (type),
+ format, 0, stream);
+ else
+ print_floating (valaddr + embedded_offset
+ + TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
+ TYPE_TARGET_TYPE (type),
+ stream);
+ fprintf_filtered (stream, " * I");
+ break;
+
default:
error ("Invalid C/C++ type code %d in symbol table.", TYPE_CODE (type));
}
}
\f
int
-c_value_print (val, stream, format, pretty)
- value_ptr val;
- GDB_FILE *stream;
- int format;
- enum val_prettyprint pretty;
+c_value_print (struct value *val, struct ui_file *stream, int format,
+ enum val_prettyprint pretty)
{
struct type *type = VALUE_TYPE (val);
+ struct type *real_type;
+ int full, top, using_enc;
/* If it is a pointer, indicate what it points to.
TYPE_CODE (type) == TYPE_CODE_REF)
{
/* Hack: remove (char *) for char strings. Their
- type is indicated by the quoted string anyway. */
+ type is indicated by the quoted string anyway. */
if (TYPE_CODE (type) == TYPE_CODE_PTR &&
TYPE_NAME (type) == NULL &&
TYPE_NAME (TYPE_TARGET_TYPE (type)) != NULL &&
- STREQ (TYPE_NAME (TYPE_TARGET_TYPE (type)), "char"))
+ strcmp (TYPE_NAME (TYPE_TARGET_TYPE (type)), "char") == 0)
{
/* Print nothing */
}
+ else if (objectprint && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CLASS))
+ {
+
+ if (TYPE_CODE(type) == TYPE_CODE_REF)
+ {
+ /* Copy value, change to pointer, so we don't get an
+ * error about a non-pointer type in value_rtti_target_type
+ */
+ struct value *temparg;
+ temparg=value_copy(val);
+ VALUE_TYPE (temparg) = lookup_pointer_type(TYPE_TARGET_TYPE(type));
+ val=temparg;
+ }
+ /* Pointer to class, check real type of object */
+ fprintf_filtered (stream, "(");
+ real_type = value_rtti_target_type (val, &full, &top, &using_enc);
+ if (real_type)
+ {
+ /* RTTI entry found */
+ if (TYPE_CODE (type) == TYPE_CODE_PTR)
+ {
+ /* create a pointer type pointing to the real type */
+ type = lookup_pointer_type (real_type);
+ }
+ else
+ {
+ /* create a reference type referencing the real type */
+ type = lookup_reference_type (real_type);
+ }
+ /* JYG: Need to adjust pointer value. */
+ val->aligner.contents[0] -= top;
+
+ /* Note: When we look up RTTI entries, we don't get any
+ information on const or volatile attributes */
+ }
+ type_print (type, "", stream, -1);
+ fprintf_filtered (stream, ") ");
+ }
else
{
+ /* normal case */
fprintf_filtered (stream, "(");
type_print (type, "", stream, -1);
fprintf_filtered (stream, ") ");
}
}
- return val_print (type, VALUE_CONTENTS (val),
- VALUE_ADDRESS (val) + VALUE_OFFSET (val),
+ if (objectprint && (TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_CLASS))
+ {
+ /* Attempt to determine real type of object */
+ real_type = value_rtti_type (val, &full, &top, &using_enc);
+ if (real_type)
+ {
+ /* We have RTTI information, so use it */
+ val = value_full_object (val, real_type, full, top, using_enc);
+ fprintf_filtered (stream, "(%s%s) ",
+ TYPE_NAME (real_type),
+ full ? "" : " [incomplete object]");
+ /* Print out object: enclosing type is same as real_type if full */
+ return val_print (VALUE_ENCLOSING_TYPE (val), VALUE_CONTENTS_ALL (val), 0,
+ VALUE_ADDRESS (val), stream, format, 1, 0, pretty);
+ /* Note: When we look up RTTI entries, we don't get any information on
+ const or volatile attributes */
+ }
+ else if (type != VALUE_ENCLOSING_TYPE (val))
+ {
+ /* No RTTI information, so let's do our best */
+ fprintf_filtered (stream, "(%s ?) ",
+ TYPE_NAME (VALUE_ENCLOSING_TYPE (val)));
+ return val_print (VALUE_ENCLOSING_TYPE (val), VALUE_CONTENTS_ALL (val), 0,
+ VALUE_ADDRESS (val), stream, format, 1, 0, pretty);
+ }
+ /* Otherwise, we end up at the return outside this "if" */
+ }
+
+ return val_print (type, VALUE_CONTENTS_ALL (val), VALUE_EMBEDDED_OFFSET (val),
+ VALUE_ADDRESS (val),
stream, format, 1, 0, pretty);
}
projects / deliverable / binutils-gdb.git / blobdiff