/* Support for printing Modula 2 values for GDB, the GNU debugger.
- Copyright (C) 1986, 1988, 1989, 1991, 1992, 1996, 1998, 2000, 2005, 2006,
- 2007, 2008, 2009 Free Software Foundation, Inc.
+ Copyright (C) 1986-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "c-lang.h"
#include "m2-lang.h"
#include "target.h"
+#include "cli/cli-style.h"
static int print_unpacked_pointer (struct type *type,
CORE_ADDR address, CORE_ADDR addr,
const struct value_print_options *options,
struct ui_file *stream);
static void
-m2_print_array_contents (struct type *type, const gdb_byte *valaddr,
- int embedded_offset, CORE_ADDR address,
+m2_print_array_contents (struct value *val,
struct ui_file *stream, int recurse,
const struct value_print_options *options,
int len);
-/* Print function pointer with inferior address ADDRESS onto stdio
- stream STREAM. */
-
-static void
-print_function_pointer_address (struct gdbarch *gdbarch, CORE_ADDR address,
- struct ui_file *stream, int addressprint)
-{
- CORE_ADDR func_addr = gdbarch_convert_from_func_ptr_addr (gdbarch, address,
- ¤t_target);
-
- /* If the function pointer is represented by a description, print the
- address of the description. */
- if (addressprint && func_addr != address)
- {
- fputs_filtered ("@", stream);
- fputs_filtered (paddress (address), stream);
- fputs_filtered (": ", stream);
- }
- print_address_demangle (func_addr, stream, demangle);
-}
-
/* get_long_set_bounds - assigns the bounds of the long set to low and
high. */
{
int len, i;
- if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
+ if (type->code () == TYPE_CODE_STRUCT)
{
- len = TYPE_NFIELDS (type);
+ len = type->num_fields ();
i = TYPE_N_BASECLASSES (type);
if (len == 0)
return 0;
struct type *target;
int bitval;
- CHECK_TYPEDEF (type);
+ type = check_typedef (type);
fprintf_filtered (stream, "{");
- len = TYPE_NFIELDS (type);
+ len = type->num_fields ();
if (get_long_set_bounds (type, &low_bound, &high_bound))
{
field = TYPE_N_BASECLASSES (type);
}
else
{
- fprintf_filtered (stream, " %s }", _("<unknown bounds of set>"));
+ fprintf_styled (stream, metadata_style.style (),
+ " %s }", _("<unknown bounds of set>"));
return;
}
}
static void
-m2_print_unbounded_array (struct type *type, const gdb_byte *valaddr,
- int embedded_offset, CORE_ADDR address,
+m2_print_unbounded_array (struct value *value,
struct ui_file *stream, int recurse,
const struct value_print_options *options)
{
- struct type *content_type;
CORE_ADDR addr;
LONGEST len;
struct value *val;
- CHECK_TYPEDEF (type);
- content_type = TYPE_TARGET_TYPE (TYPE_FIELD_TYPE (type, 0));
+ struct type *type = check_typedef (value_type (value));
+ const gdb_byte *valaddr = value_contents_for_printing (value);
addr = unpack_pointer (TYPE_FIELD_TYPE (type, 0),
(TYPE_FIELD_BITPOS (type, 0) / 8) +
- valaddr + embedded_offset);
+ valaddr);
val = value_at_lazy (TYPE_TARGET_TYPE (TYPE_FIELD_TYPE (type, 0)),
addr);
- len = unpack_field_as_long (type, valaddr + embedded_offset, 1);
+ len = unpack_field_as_long (type, valaddr, 1);
fprintf_filtered (stream, "{");
- m2_print_array_contents (value_type (val), value_contents(val),
- value_embedded_offset (val), addr, stream,
- recurse, options, len);
+ m2_print_array_contents (val, stream, recurse, options, len);
fprintf_filtered (stream, ", HIGH = %d}", (int) len);
}
{
struct gdbarch *gdbarch = get_type_arch (type);
struct type *elttype = check_typedef (TYPE_TARGET_TYPE (type));
+ int want_space = 0;
- if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
+ if (elttype->code () == TYPE_CODE_FUNC)
{
/* Try to print what function it points to. */
- print_function_pointer_address (gdbarch, addr, stream,
- options->addressprint);
+ print_function_pointer_address (options, gdbarch, addr, stream);
/* Return value is irrelevant except for string pointers. */
return 0;
}
if (options->addressprint && options->format != 's')
- fputs_filtered (paddress (address), stream);
+ {
+ fputs_filtered (paddress (gdbarch, address), stream);
+ want_space = 1;
+ }
/* 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_INT
+ && elttype->code () == TYPE_CODE_INT
&& (options->format == 0 || options->format == 's')
&& addr != 0)
- return val_print_string (TYPE_TARGET_TYPE (type), addr, -1,
- stream, options);
+ {
+ if (want_space)
+ fputs_filtered (" ", stream);
+ return val_print_string (TYPE_TARGET_TYPE (type), NULL, addr, -1,
+ stream, options);
+ }
return 0;
}
int recurse,
const struct value_print_options *options)
{
+ struct gdbarch *gdbarch = get_type_arch (type);
CORE_ADDR addr = unpack_pointer (type, valaddr);
struct type *elttype = check_typedef (TYPE_TARGET_TYPE (type));
fprintf_filtered (stream, "[");
- fputs_filtered (paddress (addr), stream);
+ fputs_filtered (paddress (gdbarch, addr), stream);
fprintf_filtered (stream, "] : ");
- if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
+ if (elttype->code () != TYPE_CODE_UNDEF)
{
struct value *deref_val =
value_at (TYPE_TARGET_TYPE (type), unpack_pointer (type, valaddr));
+
common_val_print (deref_val, stream, recurse, options, current_language);
}
else
separated values. */
static void
-m2_print_array_contents (struct type *type, const gdb_byte *valaddr,
- int embedded_offset, CORE_ADDR address,
+m2_print_array_contents (struct value *val,
struct ui_file *stream, int recurse,
const struct value_print_options *options,
int len)
{
- int eltlen;
- CHECK_TYPEDEF (type);
+ struct type *type = check_typedef (value_type (val));
if (TYPE_LENGTH (type) > 0)
{
- eltlen = TYPE_LENGTH (type);
- if (options->prettyprint_arrays)
- print_spaces_filtered (2 + 2 * recurse, stream);
/* For an array of chars, print with string syntax. */
- if (eltlen == 1 &&
- ((TYPE_CODE (type) == TYPE_CODE_INT)
+ if (TYPE_LENGTH (type) == 1 &&
+ ((type->code () == TYPE_CODE_INT)
|| ((current_language->la_language == language_m2)
- && (TYPE_CODE (type) == TYPE_CODE_CHAR)))
+ && (type->code () == TYPE_CODE_CHAR)))
&& (options->format == 0 || options->format == 's'))
- val_print_string (type, address, len+1, stream, options);
+ val_print_string (type, NULL, value_address (val), len+1, stream,
+ options);
else
{
fprintf_filtered (stream, "{");
- val_print_array_elements (type, valaddr + embedded_offset,
- address, stream, recurse, options, 0);
+ value_print_array_elements (val, stream, recurse, options, 0);
fprintf_filtered (stream, "}");
}
}
}
+/* Decorations for Modula 2. */
-/* Print data of type TYPE located at VALADDR (within GDB), which came from
- the inferior at address ADDRESS, onto stdio stream STREAM according to
- OPTIONS. The data at VALADDR is in target byte order.
-
- If the data are a string pointer, returns the number of string characters
- printed. */
-
-int
-m2_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
- CORE_ADDR address, struct ui_file *stream, int recurse,
- const struct value_print_options *options)
+static const struct generic_val_print_decorations m2_decorations =
+{
+ "",
+ " + ",
+ " * I",
+ "TRUE",
+ "FALSE",
+ "void",
+ "{",
+ "}"
+};
+
+/* See m2-lang.h. */
+
+void
+m2_value_print_inner (struct value *val, struct ui_file *stream, int recurse,
+ const struct value_print_options *options)
{
- unsigned int i = 0; /* Number of characters printed */
unsigned len;
struct type *elttype;
- unsigned eltlen;
- int length_pos, length_size, string_pos;
- int char_size;
- LONGEST val;
CORE_ADDR addr;
+ const gdb_byte *valaddr = value_contents_for_printing (val);
+ const CORE_ADDR address = value_address (val);
- CHECK_TYPEDEF (type);
- switch (TYPE_CODE (type))
+ struct type *type = check_typedef (value_type (val));
+ switch (type->code ())
{
case TYPE_CODE_ARRAY:
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 (options->prettyprint_arrays)
- print_spaces_filtered (2 + 2 * recurse, stream);
+ len = TYPE_LENGTH (type) / TYPE_LENGTH (elttype);
/* For an array of chars, print with string syntax. */
- if (eltlen == 1 &&
- ((TYPE_CODE (elttype) == TYPE_CODE_INT)
+ if (TYPE_LENGTH (elttype) == 1 &&
+ ((elttype->code () == TYPE_CODE_INT)
|| ((current_language->la_language == language_m2)
- && (TYPE_CODE (elttype) == TYPE_CODE_CHAR)))
+ && (elttype->code () == TYPE_CODE_CHAR)))
&& (options->format == 0 || options->format == 's'))
{
/* If requested, look for the first null char and only print
{
unsigned int temp_len;
- /* Look for a NULL char. */
+ /* Look for a NULL char. */
for (temp_len = 0;
- (valaddr + embedded_offset)[temp_len]
- && temp_len < len && temp_len < options->print_max;
+ (valaddr[temp_len]
+ && temp_len < len && temp_len < options->print_max);
temp_len++);
len = temp_len;
}
LA_PRINT_STRING (stream, TYPE_TARGET_TYPE (type),
- valaddr + embedded_offset, len, 0,
- options);
- i = len;
+ valaddr, len, NULL, 0, options);
}
else
{
fprintf_filtered (stream, "{");
- val_print_array_elements (type, valaddr + embedded_offset,
- address, stream, recurse, options, 0);
+ value_print_array_elements (val, stream, recurse,
+ options, 0);
fprintf_filtered (stream, "}");
}
break;
case TYPE_CODE_PTR:
if (TYPE_CONST (type))
- print_variable_at_address (type, valaddr + embedded_offset,
- stream, recurse, options);
+ print_variable_at_address (type, valaddr, stream, recurse, options);
else if (options->format && options->format != 's')
- print_scalar_formatted (valaddr + embedded_offset, type,
- options, 0, stream);
+ value_print_scalar_formatted (val, options, 0, stream);
else
{
- addr = unpack_pointer (type, valaddr + embedded_offset);
+ addr = unpack_pointer (type, valaddr);
print_unpacked_pointer (type, addr, address, options, stream);
}
break;
- case TYPE_CODE_REF:
- elttype = check_typedef (TYPE_TARGET_TYPE (type));
- if (options->addressprint)
- {
- CORE_ADDR addr
- = extract_typed_address (valaddr + embedded_offset, type);
- fprintf_filtered (stream, "@");
- fputs_filtered (paddress (addr), stream);
- if (options->deref_ref)
- fputs_filtered (": ", stream);
- }
- /* De-reference the reference. */
- if (options->deref_ref)
- {
- if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
- {
- struct value *deref_val =
- value_at
- (TYPE_TARGET_TYPE (type),
- unpack_pointer (type, valaddr + embedded_offset));
- common_val_print (deref_val, stream, recurse, options,
- current_language);
- }
- else
- fputs_filtered ("???", stream);
- }
- break;
-
case TYPE_CODE_UNION:
if (recurse && !options->unionprint)
{
/* Fall through. */
case TYPE_CODE_STRUCT:
if (m2_is_long_set (type))
- m2_print_long_set (type, valaddr, embedded_offset, address,
- stream);
+ m2_print_long_set (type, valaddr, 0, address, stream);
else if (m2_is_unbounded_array (type))
- m2_print_unbounded_array (type, valaddr, embedded_offset,
- address, stream, recurse, options);
+ m2_print_unbounded_array (val, stream, recurse, options);
else
- cp_print_value_fields (type, type, valaddr, embedded_offset,
- address, stream, recurse, options, NULL, 0);
+ cp_print_value_fields (val, stream, recurse, options, NULL, 0);
break;
- case TYPE_CODE_ENUM:
- if (options->format)
- {
- print_scalar_formatted (valaddr + embedded_offset, type,
- options, 0, stream);
- break;
- }
- len = TYPE_NFIELDS (type);
- val = unpack_long (type, valaddr + embedded_offset);
- for (i = 0; i < len; i++)
- {
- QUIT;
- if (val == TYPE_FIELD_BITPOS (type, i))
- {
- break;
- }
- }
- if (i < len)
- {
- fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
- }
- else
- {
- print_longest (stream, 'd', 0, val);
- }
- break;
-
- case TYPE_CODE_FUNC:
- if (options->format)
- {
- print_scalar_formatted (valaddr + embedded_offset, type,
- options, 0, stream);
- break;
- }
- /* FIXME, we should consider, at least for ANSI C language, eliminating
- the distinction made between FUNCs and POINTERs to FUNCs. */
- fprintf_filtered (stream, "{");
- type_print (type, "", stream, -1);
- fprintf_filtered (stream, "} ");
- /* Try to print what function it points to, and its address. */
- print_address_demangle (address, stream, demangle);
- break;
-
- case TYPE_CODE_BOOL:
- if (options->format || options->output_format)
- {
- struct value_print_options opts = *options;
- opts.format = (options->format ? options->format
- : options->output_format);
- print_scalar_formatted (valaddr + embedded_offset, type,
- &opts, 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
- fprintf_filtered (stream, "%ld)", (long int) val);
- }
- break;
-
- case TYPE_CODE_RANGE:
- if (TYPE_LENGTH (type) == TYPE_LENGTH (TYPE_TARGET_TYPE (type)))
- {
- m2_val_print (TYPE_TARGET_TYPE (type), valaddr, embedded_offset,
- address, stream, recurse, options);
- break;
- }
- /* 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:
- if (options->format || options->output_format)
- {
- struct value_print_options opts = *options;
- opts.format = (options->format ? options->format
- : options->output_format);
- print_scalar_formatted (valaddr + embedded_offset, type,
- &opts, 0, stream);
- }
- else
- val_print_type_code_int (type, valaddr + embedded_offset, stream);
- break;
-
- case TYPE_CODE_CHAR:
- if (options->format || options->output_format)
- {
- struct value_print_options opts = *options;
- opts.format = (options->format ? options->format
- : options->output_format);
- print_scalar_formatted (valaddr + embedded_offset, type,
- &opts, 0, stream);
- }
- else
- {
- 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) val, type, stream);
- }
- break;
-
- case TYPE_CODE_FLT:
- if (options->format)
- print_scalar_formatted (valaddr + embedded_offset, type,
- options, 0, stream);
- else
- print_floating (valaddr + embedded_offset, type, stream);
- break;
-
- case TYPE_CODE_METHOD:
- break;
-
- case TYPE_CODE_BITSTRING:
case TYPE_CODE_SET:
elttype = TYPE_INDEX_TYPE (type);
- CHECK_TYPEDEF (elttype);
+ elttype = check_typedef (elttype);
if (TYPE_STUB (elttype))
{
- fprintf_filtered (stream, _("<incomplete type>"));
- gdb_flush (stream);
+ fprintf_styled (stream, metadata_style.style (),
+ _("<incomplete type>"));
break;
}
else
struct type *range = elttype;
LONGEST low_bound, high_bound;
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);
+ fputs_filtered ("{", stream);
i = get_discrete_bounds (range, &low_bound, &high_bound);
maybe_bad_bstring:
if (i < 0)
{
- fputs_filtered (_("<error value>"), stream);
+ fputs_styled (_("<error value>"), metadata_style.style (),
+ stream);
goto done;
}
for (i = low_bound; i <= high_bound; i++)
{
- int element = value_bit_index (type, valaddr + embedded_offset,
- i);
+ int element = value_bit_index (type, valaddr, i);
+
if (element < 0)
{
i = element;
goto maybe_bad_bstring;
}
- if (is_bitstring)
- fprintf_filtered (stream, "%d", element);
- else if (element)
+ if (element)
{
if (need_comma)
fputs_filtered (", ", stream);
need_comma = 1;
if (i + 1 <= high_bound
- && value_bit_index (type, valaddr + embedded_offset,
- ++i))
+ && value_bit_index (type, valaddr, ++i))
{
int j = i;
+
fputs_filtered ("..", stream);
while (i + 1 <= high_bound
- && value_bit_index (type,
- valaddr + embedded_offset,
- ++i))
+ && value_bit_index (type, valaddr, ++i))
j = i;
print_type_scalar (range, j, stream);
}
}
}
done:
- if (is_bitstring)
- fputs_filtered ("'", stream);
- else
- fputs_filtered ("}", stream);
+ fputs_filtered ("}", stream);
}
break;
- case TYPE_CODE_VOID:
- fprintf_filtered (stream, "void");
- break;
+ case TYPE_CODE_RANGE:
+ if (TYPE_LENGTH (type) == TYPE_LENGTH (TYPE_TARGET_TYPE (type)))
+ {
+ struct value *v = value_cast (TYPE_TARGET_TYPE (type), val);
+ m2_value_print_inner (v, stream, recurse, options);
+ break;
+ }
+ /* FIXME: create_static_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_REF:
+ case TYPE_CODE_ENUM:
+ case TYPE_CODE_FUNC:
+ case TYPE_CODE_INT:
+ case TYPE_CODE_FLT:
+ case TYPE_CODE_METHOD:
+ case TYPE_CODE_VOID:
case TYPE_CODE_ERROR:
- fprintf_filtered (stream, _("<error 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"
- and no complete type for struct foo in that file. */
- fprintf_filtered (stream, _("<incomplete type>"));
- break;
-
+ case TYPE_CODE_BOOL:
+ case TYPE_CODE_CHAR:
default:
- error (_("Invalid m2 type code %d in symbol table."), TYPE_CODE (type));
+ generic_value_print (val, stream, recurse, options, &m2_decorations);
+ break;
}
- gdb_flush (stream);
- return (0);
}
projects / deliverable / binutils-gdb.git / blobdiff