/* 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 */
+#include "typeprint.h"
+#include "ch-lang.h"
+
+static void
+chill_print_value_fields PARAMS ((struct type *, char *, GDB_FILE *, int, int,
+ enum val_prettyprint, struct type **));
\f
+/* Print the elements of an array.
+ Similar to val_print_array_elements, but prints
+ element indexes (in Chill syntax). */
+
+static void
+chill_val_print_array_elements (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;
+{
+ unsigned int i = 0;
+ unsigned int things_printed = 0;
+ unsigned len;
+ struct type *elttype;
+ struct type *range_type = TYPE_FIELD_TYPE (type, 0);
+ struct type *index_type = TYPE_TARGET_TYPE (range_type);
+ unsigned eltlen;
+ /* Position of the array element we are examining to see
+ whether it is repeated. */
+ unsigned int rep1;
+ /* Number of repetitions we have detected so far. */
+ unsigned int reps;
+ LONGEST low_bound = TYPE_FIELD_BITPOS (range_type, 0);
+ LONGEST high_bound = TYPE_FIELD_BITPOS (range_type, 1);
+
+ elttype = TYPE_TARGET_TYPE (type);
+ eltlen = TYPE_LENGTH (elttype);
+ len = TYPE_LENGTH (type) / eltlen;
+
+ annotate_array_section_begin (i, elttype);
+
+ for (; i < len && things_printed < print_max; i++)
+ {
+ if (i != 0)
+ {
+ if (prettyprint_arrays)
+ {
+ fprintf_filtered (stream, ",\n");
+ print_spaces_filtered (2 + 2 * recurse, stream);
+ }
+ else
+ {
+ fprintf_filtered (stream, ", ");
+ }
+ }
+ wrap_here (n_spaces (2 + 2 * recurse));
+
+ rep1 = i + 1;
+ reps = 1;
+ while ((rep1 < len) &&
+ !memcmp (valaddr + i * eltlen, valaddr + rep1 * eltlen, eltlen))
+ {
+ ++reps;
+ ++rep1;
+ }
+
+ fputs_filtered ("(", stream);
+ print_type_scalar (index_type, low_bound + i, stream);
+ if (reps > 1)
+ {
+ fputs_filtered (":", stream);
+ print_type_scalar (index_type, low_bound + i + reps - 1, stream);
+ fputs_filtered ("): ", stream);
+ val_print (elttype, valaddr + i * eltlen, 0, stream, format,
+ deref_ref, recurse + 1, pretty);
+
+ i = rep1 - 1;
+ things_printed += 1;
+ }
+ else
+ {
+ fputs_filtered ("): ", stream);
+ val_print (elttype, valaddr + i * eltlen, 0, stream, format,
+ deref_ref, recurse + 1, pretty);
+ annotate_elt ();
+ things_printed++;
+ }
+ }
+ annotate_array_section_end ();
+ if (i < len)
+ {
+ fprintf_filtered (stream, "...");
+ }
+}
+
/* 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
struct type *type;
char *valaddr;
CORE_ADDR address;
- FILE *stream;
+ GDB_FILE *stream;
int format;
int deref_ref;
int recurse;
enum val_prettyprint pretty;
{
LONGEST val;
+ unsigned int i = 0; /* Number of characters printed. */
+ struct type *elttype;
+ CORE_ADDR addr;
switch (TYPE_CODE (type))
{
print_spaces_filtered (2 + 2 * recurse, stream);
}
fprintf_filtered (stream, "[");
- val_print_array_elements (type, valaddr, address, stream, format,
- deref_ref, recurse, pretty, 0);
+ chill_val_print_array_elements (type, valaddr, address, stream,
+ format, deref_ref, recurse, pretty);
fprintf_filtered (stream, "]");
}
else
}
else
{
+ /* FIXME: Why is this using builtin_type_chill_bool not type? */
val = unpack_long (builtin_type_chill_bool, valaddr);
fprintf_filtered (stream, val ? "TRUE" : "FALSE");
}
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);
+
+ /* We assume a NULL pointer is all zeros ... */
+ if (addr == 0)
+ {
+ fputs_filtered ("NULL", stream);
+ return 0;
+ }
+
+ 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, 1, 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:
+ elttype = TYPE_FIELD_TYPE (type, 0);
+ check_stub_type (elttype);
+ if (TYPE_FLAGS (elttype) & TYPE_FLAG_STUB)
+ {
+ fprintf_filtered (stream, "<incomplete type>");
+ gdb_flush (stream);
+ break;
+ }
+ {
+ struct type *range = elttype;
+ 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;
+
+ 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));
+ }
+ LA_PRINT_STRING (stream, data_addr, length, 0);
+ return length;
+ default:
+ break;
+ }
+ }
+ 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),
+ 1,
+ 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_ptr 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_ptr 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, "]");
+}
+\f
+int
+chill_value_print (val, stream, format, pretty)
+ value_ptr val;
+ GDB_FILE *stream;
+ int format;
+ enum val_prettyprint pretty;
+{
+ /* A "repeated" value really contains several values in a row.
+ They are made by the @ operator.
+ Print such values as if they were arrays. */
+
+ if (VALUE_REPEATED (val))
+ {
+ register unsigned int n = VALUE_REPETITIONS (val);
+ register unsigned int typelen = TYPE_LENGTH (VALUE_TYPE (val));
+ fprintf_filtered (stream, "[");
+ /* Print arrays of characters using string syntax. */
+ if (typelen == 1 && TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_INT
+ && format == 0)
+ LA_PRINT_STRING (stream, VALUE_CONTENTS (val), n, 0);
+ else
+ {
+ value_print_array_elements (val, stream, format, pretty);
+ }
+ fprintf_filtered (stream, "]");
+ return (n * typelen);
+ }
+ else
+ {
+ struct type *type = VALUE_TYPE (val);
+
+ /* 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)
+ {
+ char *valaddr = VALUE_CONTENTS (val);
+ CORE_ADDR addr = unpack_pointer (type, valaddr);
+ if (TYPE_CODE (type) != TYPE_CODE_PTR || addr != 0)
+ {
+ int i;
+ char *name = TYPE_NAME (type);
+ if (name)
+ fputs_filtered (name, stream);
+ else if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_VOID)
+ fputs_filtered ("PTR", stream);
+ else
+ {
+ fprintf_filtered (stream, "(");
+ type_print (type, "", stream, -1);
+ fprintf_filtered (stream, ")");
+ }
+ fprintf_filtered (stream, "(");
+ i = val_print (type, valaddr, VALUE_ADDRESS (val),
+ stream, format, 1, 0, pretty);
+ fprintf_filtered (stream, ")");
+ return i;
+ }
+ }
+ return (val_print (type, VALUE_CONTENTS (val),
+ VALUE_ADDRESS (val), stream, format, 1, 0, pretty));
+ }
+}
+
+
projects / binutils.git / blobdiff