/* Support for printing Chill values for GDB, the GNU debugger.
- Copyright 1986, 1988, 1989, 1991 Free Software Foundation, Inc.
+ Copyright 1986, 1988, 1989, 1991, 1992, 1993, 1994
+ Free Software Foundation, Inc.
This file is part of GDB.
#include "gdbtypes.h"
#include "valprint.h"
#include "expression.h"
+#include "value.h"
#include "language.h"
+#include "demangle.h"
+#include "c-lang.h" /* For c_val_print */
+
+static void
+chill_print_value_fields PARAMS ((struct type *, char *, GDB_FILE *, int, int,
+ enum val_prettyprint, struct type **));
\f
/* Print data of type TYPE located at VALADDR (within GDB), which came from
struct type *type;
char *valaddr;
CORE_ADDR address;
- FILE *stream;
+ GDB_FILE *stream;
int format;
int deref_ref;
int recurse;
enum val_prettyprint pretty;
{
- unsigned len;
- struct type *elttype;
- unsigned eltlen;
LONGEST val;
+ unsigned int i = 0; /* Number of characters printed. */
+ struct type *elttype;
+ CORE_ADDR addr;
switch (TYPE_CODE (type))
{
case TYPE_CODE_ARRAY:
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);
}
fprintf_filtered (stream, "[");
- /* For an array of chars, print with string syntax. */
- if (eltlen == 1 && TYPE_CODE (elttype) == TYPE_CODE_INT
- && (format == 0 || format == 's') )
- {
- LA_PRINT_STRING (stream, valaddr, len, 0);
- }
- else
- {
- val_print_array_elements (type, valaddr, address, stream,
- format, deref_ref, recurse, pretty, 0);
- }
+ val_print_array_elements (type, valaddr, address, stream, format,
+ deref_ref, recurse, pretty, 0);
fprintf_filtered (stream, "]");
}
else
break;
case TYPE_CODE_PTR:
- case TYPE_CODE_MEMBER:
- case TYPE_CODE_REF:
- case TYPE_CODE_UNION:
+ if (format && format != 's')
+ {
+ print_scalar_formatted (valaddr, type, format, 0, stream);
+ break;
+ }
+ addr = unpack_pointer (type, valaddr);
+ elttype = 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);
+ /* Return value is irrelevant except for string pointers. */
+ return (0);
+ }
+ if (addressprint && format != 's')
+ {
+ print_address_numeric (addr, stream);
+ }
+
+ /* For a pointer to char or unsigned char, also print the string
+ pointed to, unless pointer is null. */
+ if (TYPE_LENGTH (elttype) == 1
+ && TYPE_CODE (elttype) == TYPE_CODE_CHAR
+ && (format == 0 || format == 's')
+ && addr != 0
+ && /* If print_max is UINT_MAX, the alloca below will fail.
+ In that case don't try to print the string. */
+ print_max < UINT_MAX)
+ {
+ i = val_print_string (addr, 0, stream);
+ }
+ /* Return number of characters printed, plus one for the
+ terminating null if we have "reached the end". */
+ return (i + (print_max && i != print_max));
+ break;
+
+ case TYPE_CODE_STRING:
+ if (format && format != 's')
+ {
+ print_scalar_formatted (valaddr, type, format, 0, stream);
+ break;
+ }
+ i = TYPE_LENGTH (type);
+ LA_PRINT_STRING (stream, valaddr, i, 0);
+ /* Return number of characters printed, plus one for the terminating
+ null if we have "reached the end". */
+ return (i + (print_max && i != print_max));
+ break;
+
+ case TYPE_CODE_BITSTRING:
+ case TYPE_CODE_SET:
+ {
+ struct type *range = TYPE_FIELD_TYPE (type, 0);
+ int low_bound = TYPE_LOW_BOUND (range);
+ int high_bound = TYPE_HIGH_BOUND (range);
+ int i;
+ int is_bitstring = TYPE_CODE (type) == TYPE_CODE_BITSTRING;
+ int need_comma = 0;
+ int in_range = 0;
+
+ if (is_bitstring)
+ fputs_filtered ("B'", stream);
+ else
+ fputs_filtered ("[", stream);
+ for (i = low_bound; i <= high_bound; i++)
+ {
+ int element = value_bit_index (type, valaddr, i);
+ if (is_bitstring)
+ fprintf_filtered (stream, "%d", element);
+ else if (element)
+ {
+ if (need_comma)
+ fputs_filtered (", ", stream);
+ print_type_scalar (TYPE_TARGET_TYPE (range), i, stream);
+ need_comma = 1;
+
+ /* Look for a continuous range of true elements. */
+ if (i+1 <= high_bound && value_bit_index (type, valaddr, ++i))
+ {
+ int j = i; /* j is the upper bound so far of the range */
+ fputs_filtered (":", stream);
+ while (i+1 <= high_bound
+ && value_bit_index (type, valaddr, ++i))
+ j = i;
+ print_type_scalar (TYPE_TARGET_TYPE (range), j, stream);
+ }
+ }
+ }
+ if (is_bitstring)
+ fputs_filtered ("'", stream);
+ else
+ fputs_filtered ("]", stream);
+ }
+ break;
+
case TYPE_CODE_STRUCT:
+ if (chill_is_varying_struct (type))
+ {
+ struct type *inner = TYPE_FIELD_TYPE (type, 1);
+ long length = unpack_long (TYPE_FIELD_TYPE (type, 0), valaddr);
+ char *data_addr = valaddr + TYPE_FIELD_BITPOS (type, 1) / 8;
+
+ switch (TYPE_CODE (inner))
+ {
+ case TYPE_CODE_STRING:
+ if (length > TYPE_LENGTH (type))
+ {
+ fprintf_filtered (stream,
+ "<dynamic length %d > static length %d>",
+ length, TYPE_LENGTH (type));
+ length > TYPE_LENGTH (type);
+ }
+ LA_PRINT_STRING (stream, data_addr, length, 0);
+ return length;
+ }
+ }
+ chill_print_value_fields (type, valaddr, stream, format, recurse, pretty,
+ 0);
+ break;
+
+ case TYPE_CODE_REF:
+ if (addressprint)
+ {
+ fprintf_filtered (stream, "LOC(");
+ print_address_numeric
+ (extract_address (valaddr, TARGET_PTR_BIT / HOST_CHAR_BIT),
+ stream);
+ fprintf_filtered (stream, ")");
+ if (deref_ref)
+ fputs_filtered (": ", stream);
+ }
+ /* De-reference the reference. */
+ if (deref_ref)
+ {
+ if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_UNDEF)
+ {
+ value deref_val =
+ value_at
+ (TYPE_TARGET_TYPE (type),
+ unpack_pointer (lookup_pointer_type (builtin_type_void),
+ valaddr));
+ val_print (VALUE_TYPE (deref_val),
+ VALUE_CONTENTS (deref_val),
+ VALUE_ADDRESS (deref_val), stream, format,
+ deref_ref, recurse + 1, pretty);
+ }
+ else
+ fputs_filtered ("???", stream);
+ }
+ break;
+
case TYPE_CODE_ENUM:
- case TYPE_CODE_FUNC:
- case TYPE_CODE_VOID:
- case TYPE_CODE_ERROR:
+ c_val_print (type, valaddr, address, stream, format,
+ deref_ref, recurse, pretty);
+ break;
+
case TYPE_CODE_RANGE:
- error ("Unimplemented chill_val_print support for type %d",
- TYPE_CODE (type));
+ if (TYPE_TARGET_TYPE (type))
+ chill_val_print (TYPE_TARGET_TYPE (type), valaddr, address, stream,
+ format, deref_ref, recurse, pretty);
break;
+ case TYPE_CODE_MEMBER:
+ case TYPE_CODE_UNION:
+ case TYPE_CODE_FUNC:
+ case TYPE_CODE_VOID:
+ case TYPE_CODE_ERROR:
default:
- error ("Invalid Chill type code %d in symbol table.", TYPE_CODE (type));
+ /* Let's defer printing to the C printer, rather than
+ print an error message. FIXME! */
+ c_val_print (type, valaddr, address, stream, format,
+ deref_ref, recurse, pretty);
}
- fflush (stream);
+ gdb_flush (stream);
return (0);
}
+
+/* Mutually recursive subroutines of cplus_print_value and c_val_print to
+ print out a structure's fields: cp_print_value_fields and cplus_print_value.
+
+ TYPE, VALADDR, STREAM, RECURSE, and PRETTY have the
+ same meanings as in cplus_print_value and c_val_print.
+
+ DONT_PRINT is an array of baseclass types that we
+ should not print, or zero if called from top level. */
+
+static void
+chill_print_value_fields (type, valaddr, stream, format, recurse, pretty,
+ dont_print)
+ struct type *type;
+ char *valaddr;
+ GDB_FILE *stream;
+ int format;
+ int recurse;
+ enum val_prettyprint pretty;
+ struct type **dont_print;
+{
+ int i, len;
+ int fields_seen = 0;
+
+ check_stub_type (type);
+
+ fprintf_filtered (stream, "[");
+ len = TYPE_NFIELDS (type);
+ if (len == 0)
+ {
+ fprintf_filtered (stream, "<No data fields>");
+ }
+ else
+ {
+ for (i = 0; i < len; i++)
+ {
+ if (fields_seen)
+ {
+ fprintf_filtered (stream, ", ");
+ }
+ fields_seen = 1;
+ if (pretty)
+ {
+ fprintf_filtered (stream, "\n");
+ print_spaces_filtered (2 + 2 * recurse, stream);
+ }
+ else
+ {
+ wrap_here (n_spaces (2 + 2 * recurse));
+ }
+ fputs_filtered (".", stream);
+ fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
+ language_chill, DMGL_NO_OPTS);
+ fputs_filtered (": ", stream);
+ if (TYPE_FIELD_PACKED (type, i))
+ {
+ value v;
+
+ /* Bitfields require special handling, especially due to byte
+ order problems. */
+ v = value_from_longest (TYPE_FIELD_TYPE (type, i),
+ unpack_field_as_long (type, valaddr, i));
+
+ chill_val_print (TYPE_FIELD_TYPE (type, i), VALUE_CONTENTS (v), 0,
+ stream, format, 0, recurse + 1, pretty);
+ }
+ else
+ {
+ chill_val_print (TYPE_FIELD_TYPE (type, i),
+ valaddr + TYPE_FIELD_BITPOS (type, i) / 8,
+ 0, stream, format, 0, recurse + 1, pretty);
+ }
+ }
+ if (pretty)
+ {
+ fprintf_filtered (stream, "\n");
+ print_spaces_filtered (2 * recurse, stream);
+ }
+ }
+ fprintf_filtered (stream, "]");
+}