/* Support for printing C values for GDB, the GNU debugger.
- Copyright 1986, 1988, 1989, 1991 Free Software Foundation, Inc.
+ Copyright 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997
+ Free Software Foundation, Inc.
This file is part of GDB.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "symtab.h"
#include "demangle.h"
#include "valprint.h"
#include "language.h"
-
-/* BEGIN-FIXME */
-
-extern int vtblprint; /* Controls printing of vtbl's */
-extern int demangle; /* whether to print C++ syms raw or src-form */
-
-extern void
-cp_print_class_member PARAMS ((char *, struct type *, GDB_FILE *, char *));
-
-extern void
-cp_print_class_method PARAMS ((char *, struct type *, GDB_FILE *));
-
-extern void
-cp_print_value_fields PARAMS ((struct type *, char *, GDB_FILE *, int, int,
- enum val_prettyprint, struct type **));
-
-extern int
-cp_is_vtbl_ptr_type PARAMS ((struct type *));
-
-extern int
-cp_is_vtbl_member PARAMS ((struct type *));
-
-/* END-FIXME */
-
-
-/* BEGIN-FIXME: Hooks into c-typeprint.c */
-
-extern void
-c_type_print_varspec_prefix PARAMS ((struct type *, GDB_FILE *, int, int));
-
-extern void
-cp_type_print_method_args PARAMS ((struct type **, char *, char *, int,
- GDB_FILE *));
-/* END-FIXME */
-
-
-extern struct obstack dont_print_obstack;
+#include "c-lang.h"
\f
/* Print data of type TYPE located at VALADDR (within GDB), which came from
The PRETTY parameter controls prettyprinting. */
int
-c_val_print (type, valaddr, address, stream, format, deref_ref, recurse,
+c_val_print (type, valaddr, embedded_offset, address, stream, format, deref_ref, recurse,
pretty)
struct type *type;
char *valaddr;
+ int embedded_offset;
CORE_ADDR address;
GDB_FILE *stream;
int format;
LONGEST val;
CORE_ADDR addr;
+ CHECK_TYPEDEF (type);
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 = TYPE_TARGET_TYPE (type);
eltlen = TYPE_LENGTH (elttype);
len = TYPE_LENGTH (type) / eltlen;
if (prettyprint_arrays)
print_spaces_filtered (2 + 2 * recurse, stream);
}
/* For an array of chars, print with string syntax. */
- if (eltlen == 1 && TYPE_CODE (elttype) == TYPE_CODE_INT
+ if (eltlen == 1 &&
+ ((TYPE_CODE (elttype) == TYPE_CODE_INT)
+ || ((current_language->la_language == language_m2)
+ && (TYPE_CODE (elttype) == TYPE_CODE_CHAR)))
&& (format == 0 || format == 's'))
{
- LA_PRINT_STRING (stream, valaddr, len, 0);
+ /* If requested, look for the first null char and only print
+ elements up to it. */
+ if (stop_print_at_null)
+ {
+ int temp_len;
+
+ /* Look for a NULL char. */
+ for (temp_len = 0;
+ (valaddr + embedded_offset)[temp_len]
+ && temp_len < len && temp_len < print_max;
+ temp_len++);
+ len = temp_len;
+ }
+
+ LA_PRINT_STRING (stream, valaddr + embedded_offset, len, eltlen, 0);
i = len;
}
else
{
i = 0;
}
- val_print_array_elements (type, valaddr, address, stream,
+ val_print_array_elements (type, valaddr + embedded_offset, address, stream,
format, deref_ref, recurse, pretty, i);
fprintf_filtered (stream, "}");
}
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 (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_METHOD)
+ if (vtblprint && cp_is_vtbl_ptr_type(type))
+ {
+ /* 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 + embedded_offset, TYPE_LENGTH (type)),
+ stream, demangle);
+ 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 (TYPE_TARGET_TYPE (type)) == TYPE_CODE_MEMBER)
+ 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 = TYPE_TARGET_TYPE (type);
+ elttype = check_typedef (TYPE_TARGET_TYPE (type));
if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
{
if (addressprint && format != 's')
{
- fprintf_filtered (stream, "0x%lx", (unsigned long)addr);
+ print_address_numeric (addr, 1, stream);
}
/* 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))
{
/* 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);
}
if (vt_address && vtblprint)
{
- value vt_val;
+ value_ptr vt_val;
struct symbol *wsym = (struct symbol *)NULL;
struct type *wtype;
struct symtab *s;
{
wtype = TYPE_TARGET_TYPE(type);
}
- vt_val = value_at (wtype, vt_address);
- val_print (VALUE_TYPE (vt_val), VALUE_CONTENTS (vt_val),
+ vt_val = value_at (wtype, vt_address, NULL);
+ val_print (VALUE_TYPE (vt_val), VALUE_CONTENTS (vt_val), 0,
VALUE_ADDRESS (vt_val), stream, format,
deref_ref, recurse + 1, pretty);
if (pretty)
}
}
- /* Return number of characters printed, plus one for the
- terminating null if we have "reached the end". */
- return (i + (print_max && i != print_max));
+ /* Return number of characters printed, including the terminating
+ '\0' if we reached the end. val_print_string takes care including
+ the terminating '\0' if necessary. */
+ return i;
}
break;
break;
case TYPE_CODE_REF:
- if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_MEMBER)
+ elttype = check_typedef (TYPE_TARGET_TYPE (type));
+ if (TYPE_CODE (elttype) == TYPE_CODE_MEMBER)
{
- cp_print_class_member (valaddr,
- TYPE_DOMAIN_TYPE (TYPE_TARGET_TYPE (type)),
+ cp_print_class_member (valaddr + embedded_offset,
+ TYPE_DOMAIN_TYPE (elttype),
stream, "");
break;
}
if (addressprint)
{
- fprintf_filtered (stream, "@0x%lx",
- unpack_long (builtin_type_int, valaddr));
+ fprintf_filtered (stream, "@");
+ print_address_numeric
+ (extract_address (valaddr + embedded_offset,
+ TARGET_PTR_BIT / HOST_CHAR_BIT), 1, stream);
if (deref_ref)
fputs_filtered (": ", stream);
}
/* De-reference the reference. */
if (deref_ref)
{
- if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_UNDEF)
+ if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
{
- value deref_val =
+ value_ptr deref_val =
value_at
(TYPE_TARGET_TYPE (type),
unpack_pointer (lookup_pointer_type (builtin_type_void),
- valaddr));
+ 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);
+ VALUE_CONTENTS (deref_val),
+ 0,
+ VALUE_ADDRESS (deref_val),
+ stream,
+ format,
+ deref_ref,
+ recurse,
+ pretty);
}
else
fputs_filtered ("???", stream);
if (vtblprint && cp_is_vtbl_ptr_type(type))
{
/* Print the unmangled name if desired. */
- print_address_demangle(*((int *) (valaddr + /* FIXME bytesex */
- TYPE_FIELD_BITPOS (type, VTBL_FNADDR_OFFSET) / 8)),
- stream, demangle);
- break;
+ /* Print vtable entry - we only get here if NOT using
+ -fvtable_thunks. (Otherwise, look under TYPE_CODE_PTR.) */
+ print_address_demangle (extract_address (
+ valaddr + embedded_offset +
+ TYPE_FIELD_BITPOS (type, VTBL_FNADDR_OFFSET) / 8,
+ TYPE_LENGTH (TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET))),
+ stream, demangle);
}
- cp_print_value_fields (type, valaddr, stream, format, recurse, pretty,
- 0);
+ else
+ 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
break;
case TYPE_CODE_BOOL:
- /* Do something at least vaguely reasonable, for example if the
- language is set wrong. */
+ format = format ? format : output_format;
+ if (format)
+ print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
+ else
+ {
+ val = unpack_long (type, valaddr + embedded_offset);
+ if (val == 0)
+ fputs_filtered ("false", stream);
+ else if (val == 1)
+ fputs_filtered ("true", stream);
+ else
+ print_longest (stream, 'd', 0, val);
+ }
+ break;
+
+ 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. */
+ /* 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). */
+ /* 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));
+ unpack_long (type, valaddr + embedded_offset));
fputs_filtered (" ", stream);
- LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr), stream);
+ LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr + embedded_offset), 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:
+ cp_print_class_method (valaddr + embedded_offset, lookup_pointer_type (type), stream);
+ break;
+
case TYPE_CODE_VOID:
fprintf_filtered (stream, "void");
break;
fprintf_filtered (stream, "<error type>");
break;
- case TYPE_CODE_RANGE:
- /* FIXME, we should not ever have to print one of these yet. */
- fprintf_filtered (stream, "<range type>");
- 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"
gdb_flush (stream);
return (0);
}
+\f
+int
+c_value_print (val, stream, format, pretty)
+ value_ptr val;
+ GDB_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.
+
+ Print type also if it is a reference.
+
+ C++: if it is a member pointer, we will take care
+ of that when we print it. */
+ if (TYPE_CODE (type) == TYPE_CODE_PTR ||
+ TYPE_CODE (type) == TYPE_CODE_REF)
+ {
+ /* Hack: remove (char *) for char strings. Their
+ 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"))
+ {
+ /* Print nothing */
+ }
+ else if (objectprint && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CLASS))
+ {
+ /* Pointer to class, check real type of object */
+ fprintf_filtered (stream, "(");
+ type = value_rtti_target_type (val, &full, &top, &using_enc);
+ if (type)
+ {
+ /* RTTI entry found */
+ type = lookup_pointer_type (type);
+ type_print (type, "", stream, -1);
+ }
+ else
+ {
+ /* No RTTI fields, do whatever we can */
+ type = VALUE_ENCLOSING_TYPE (val);
+ type_print (type, "", stream, -1);
+ fprintf_filtered (stream, " ?");
+ }
+ fprintf_filtered (stream, ") ");
+ }
+ else
+ {
+ /* normal case */
+ fprintf_filtered (stream, "(");
+ type_print (type, "", stream, -1);
+ fprintf_filtered (stream, ") ");
+ }
+ }
+ 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);
+ }
+ 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