/* Support for printing Ada values for GDB, the GNU debugger.
- Copyright (C) 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1997, 2001, 2002,
- 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 1986-2014 Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include <ctype.h>
-#include "gdb_string.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "ada-lang.h"
#include "c-lang.h"
#include "infcall.h"
-#include "exceptions.h"
#include "objfiles.h"
-static void print_record (struct type *, const gdb_byte *, struct ui_file *,
- int,
- const struct value *,
- const struct value_print_options *);
-
static int print_field_values (struct type *, const gdb_byte *,
+ int,
struct ui_file *, int,
const struct value *,
const struct value_print_options *,
- int, struct type *,
- const gdb_byte *);
-
-static void adjust_type_signedness (struct type *);
-
-static int ada_val_print_1 (struct type *, const gdb_byte *, int, CORE_ADDR,
- struct ui_file *, int,
- const struct value *,
- const struct value_print_options *);
+ int, struct type *, int,
+ const struct language_defn *);
\f
/* Make TYPE unsigned if its range of values includes no negatives. */
index_type = TYPE_INDEX_TYPE (type);
- if (TYPE_CODE (index_type) == TYPE_CODE_RANGE)
+ while (TYPE_CODE (index_type) == TYPE_CODE_RANGE)
{
/* We need to know what the base type is, in order to do the
appropriate check below. Otherwise, if this is a subrange
return 0;
break;
case TYPE_CODE_ENUM:
- if (low_bound == TYPE_FIELD_BITPOS (index_type, 0))
+ if (low_bound == TYPE_FIELD_ENUMVAL (index_type, 0))
return 0;
break;
case TYPE_CODE_UNDEF:
static void
val_print_packed_array_elements (struct type *type, const gdb_byte *valaddr,
+ int offset,
int bitoffset, struct ui_file *stream,
int recurse,
const struct value *val,
if (i != 0)
{
- if (options->prettyprint_arrays)
+ if (options->prettyformat_arrays)
{
fprintf_filtered (stream, ",\n");
print_spaces_filtered (2 + 2 * recurse, stream);
maybe_print_array_index (index_type, i + low, stream, options);
i0 = i;
- v0 = ada_value_primitive_packed_val (NULL, valaddr,
+ v0 = ada_value_primitive_packed_val (NULL, valaddr + offset,
(i0 * bitsize) / HOST_CHAR_BIT,
(i0 * bitsize) % HOST_CHAR_BIT,
bitsize, elttype);
i += 1;
if (i >= len)
break;
- v1 = ada_value_primitive_packed_val (NULL, valaddr,
+ v1 = ada_value_primitive_packed_val (NULL, valaddr + offset,
(i * bitsize) / HOST_CHAR_BIT,
(i * bitsize) % HOST_CHAR_BIT,
bitsize, elttype);
- if (memcmp (value_contents (v0), value_contents (v1), eltlen) != 0)
+ if (!value_contents_eq (v0, value_embedded_offset (v0),
+ v1, value_embedded_offset (v1),
+ eltlen))
break;
}
struct value_print_options opts = *options;
opts.deref_ref = 0;
- val_print (elttype, value_contents (v0), 0, 0, stream,
- recurse + 1, val, &opts, current_language);
+ val_print (elttype, value_contents_for_printing (v0),
+ value_embedded_offset (v0), 0, stream,
+ recurse + 1, v0, &opts, current_language);
annotate_elt_rep (i - i0);
fprintf_filtered (stream, _(" <repeats %u times>"), i - i0);
annotate_elt_rep_end ();
{
if (j > i0)
{
- if (options->prettyprint_arrays)
+ if (options->prettyformat_arrays)
{
fprintf_filtered (stream, ",\n");
print_spaces_filtered (2 + 2 * recurse, stream);
maybe_print_array_index (index_type, j + low,
stream, options);
}
- val_print (elttype, value_contents (v0), 0, 0, stream,
- recurse + 1, val, &opts, current_language);
+ val_print (elttype, value_contents_for_printing (v0),
+ value_embedded_offset (v0), 0, stream,
+ recurse + 1, v0, &opts, current_language);
annotate_elt ();
}
}
/* Print the character C on STREAM as part of the contents of a literal
string whose delimiter is QUOTER. TYPE_LEN is the length in bytes
- (1 or 2) of the character. */
+ of the character. */
void
ada_emit_char (int c, struct type *type, struct ui_file *stream,
int quoter, int type_len)
{
- if (type_len != 2)
- type_len = 1;
-
- c &= (1 << (type_len * TARGET_CHAR_BIT)) - 1;
-
- if (isascii (c) && isprint (c))
+ /* If this character fits in the normal ASCII range, and is
+ a printable character, then print the character as if it was
+ an ASCII character, even if this is a wide character.
+ The UCHAR_MAX check is necessary because the isascii function
+ requires that its argument have a value of an unsigned char,
+ or EOF (EOF is obviously not printable). */
+ if (c <= UCHAR_MAX && isascii (c) && isprint (c))
{
if (c == quoter && c == '"')
fprintf_filtered (stream, "\"\"");
fprintf_filtered (stream, "[\"%0*x\"]", type_len * 2, c);
}
-/* Character #I of STRING, given that TYPE_LEN is the size in bytes (1
- or 2) of a character. */
+/* Character #I of STRING, given that TYPE_LEN is the size in bytes
+ of a character. */
static int
char_at (const gdb_byte *string, int i, int type_len,
if (type_len == 1)
return string[i];
else
- return (int) extract_unsigned_integer (string + 2 * i, 2, byte_order);
-}
-
-/* Wrapper around memcpy to make it legal argument to ui_file_put. */
-static void
-ui_memcpy (void *dest, const char *buffer, long len)
-{
- memcpy (dest, buffer, (size_t) len);
- ((char *) dest)[len] = '\0';
+ return (int) extract_unsigned_integer (string + type_len * i,
+ type_len, byte_order);
}
/* Print a floating-point value of type TYPE, pointed to in GDB by
VALADDR, on STREAM. Use Ada formatting conventions: there must be
a decimal point, and at least one digit before and after the
- point. We use GNAT format for NaNs and infinities. */
+ point. We use the GNAT format for NaNs and infinities. */
+
static void
ada_print_floating (const gdb_byte *valaddr, struct type *type,
struct ui_file *stream)
{
- char buffer[64];
char *s, *result;
- int len;
struct ui_file *tmp_stream = mem_fileopen ();
struct cleanup *cleanups = make_cleanup_ui_file_delete (tmp_stream);
print_floating (valaddr, type, tmp_stream);
- ui_file_put (tmp_stream, ui_memcpy, buffer);
- do_cleanups (cleanups);
-
- result = buffer;
- len = strlen (result);
+ result = ui_file_xstrdup (tmp_stream, NULL);
+ make_cleanup (xfree, result);
/* Modify for Ada rules. */
fprintf_filtered (stream, "%s.0", result);
else
fprintf_filtered (stream, "%.*s.0%s", (int) (s-result), result, s);
- return;
}
- fprintf_filtered (stream, "%s", result);
+ else
+ fprintf_filtered (stream, "%s", result);
+
+ do_cleanups (cleanups);
}
void
ada_printchar (int c, struct type *type, struct ui_file *stream)
{
fputs_filtered ("'", stream);
- ada_emit_char (c, type, stream, '\'', 1);
+ ada_emit_char (c, type, stream, '\'', TYPE_LENGTH (type));
fputs_filtered ("'", stream);
}
len = TYPE_NFIELDS (type);
for (i = 0; i < len; i++)
{
- if (TYPE_FIELD_BITPOS (type, i) == val)
+ if (TYPE_FIELD_ENUMVAL (type, i) == val)
{
break;
}
break;
case TYPE_CODE_CHAR:
- LA_PRINT_CHAR ((unsigned char) val, type, stream);
+ LA_PRINT_CHAR (val, type, stream);
break;
case TYPE_CODE_BOOL:
/* Print the character string STRING, printing at most LENGTH characters.
Printing stops early if the number hits print_max; repeat counts
are printed as appropriate. Print ellipses at the end if we
- had to stop before printing LENGTH characters, or if
- FORCE_ELLIPSES. TYPE_LEN is the length (1 or 2) of the character type. */
+ had to stop before printing LENGTH characters, or if FORCE_ELLIPSES.
+ TYPE_LEN is the length (1 or 2) of the character type. */
static void
printstr (struct ui_file *stream, struct type *elttype, const gdb_byte *string,
{
if (in_quotes)
{
- if (options->inspect_it)
- fputs_filtered ("\\\", ", stream);
- else
- fputs_filtered ("\", ", stream);
+ fputs_filtered ("\", ", stream);
in_quotes = 0;
}
fputs_filtered ("'", stream);
{
if (!in_quotes)
{
- if (options->inspect_it)
- fputs_filtered ("\\\"", stream);
- else
- fputs_filtered ("\"", stream);
+ fputs_filtered ("\"", stream);
in_quotes = 1;
}
ada_emit_char (char_at (string, i, type_len, byte_order),
/* Terminate the quotes if necessary. */
if (in_quotes)
- {
- if (options->inspect_it)
- fputs_filtered ("\\\"", stream);
- else
- fputs_filtered ("\"", stream);
- }
+ fputs_filtered ("\"", stream);
if (force_ellipses || i < length)
fputs_filtered ("...", stream);
options);
}
+static int
+print_variant_part (struct type *type, int field_num,
+ const gdb_byte *valaddr, int offset,
+ struct ui_file *stream, int recurse,
+ const struct value *val,
+ const struct value_print_options *options,
+ int comma_needed,
+ struct type *outer_type, int outer_offset,
+ const struct language_defn *language)
+{
+ struct type *var_type = TYPE_FIELD_TYPE (type, field_num);
+ int which = ada_which_variant_applies (var_type, outer_type,
+ valaddr + outer_offset);
-/* 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 (which < 0)
+ return 0;
+ else
+ return print_field_values
+ (TYPE_FIELD_TYPE (var_type, which),
+ valaddr,
+ offset + TYPE_FIELD_BITPOS (type, field_num) / HOST_CHAR_BIT
+ + TYPE_FIELD_BITPOS (var_type, which) / HOST_CHAR_BIT,
+ stream, recurse, val, options,
+ comma_needed, outer_type, outer_offset, language);
+}
- If the data is printed as a string, returns the number of string characters
- printed.
+/* Print out fields of value at VALADDR + OFFSET having structure type TYPE.
- RECURSE indicates the amount of indentation to supply before
- continuation lines; this amount is roughly twice the value of RECURSE. */
+ TYPE, VALADDR, OFFSET, STREAM, RECURSE, and OPTIONS have the same
+ meanings as in ada_print_value and ada_val_print.
-int
-ada_val_print (struct type *type, const gdb_byte *valaddr0,
- int embedded_offset, CORE_ADDR address,
- struct ui_file *stream, int recurse,
- const struct value *val,
- const struct value_print_options *options)
+ OUTER_TYPE and OUTER_OFFSET give type and address of enclosing
+ record (used to get discriminant values when printing variant
+ parts).
+
+ COMMA_NEEDED is 1 if fields have been printed at the current recursion
+ level, so that a comma is needed before any field printed by this
+ call.
+
+ Returns 1 if COMMA_NEEDED or any fields were printed. */
+
+static int
+print_field_values (struct type *type, const gdb_byte *valaddr,
+ int offset, struct ui_file *stream, int recurse,
+ const struct value *val,
+ const struct value_print_options *options,
+ int comma_needed,
+ struct type *outer_type, int outer_offset,
+ const struct language_defn *language)
{
- volatile struct gdb_exception except;
- int result = 0;
+ int i, len;
- TRY_CATCH (except, RETURN_MASK_ALL)
+ len = TYPE_NFIELDS (type);
+
+ for (i = 0; i < len; i += 1)
{
- result = ada_val_print_1 (type, valaddr0, embedded_offset, address,
- stream, recurse, val, options);
- }
+ if (ada_is_ignored_field (type, i))
+ continue;
- if (except.reason < 0)
- result = 0;
+ if (ada_is_wrapper_field (type, i))
+ {
+ comma_needed =
+ print_field_values (TYPE_FIELD_TYPE (type, i),
+ valaddr,
+ (offset
+ + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT),
+ stream, recurse, val, options,
+ comma_needed, type, offset, language);
+ continue;
+ }
+ else if (ada_is_variant_part (type, i))
+ {
+ comma_needed =
+ print_variant_part (type, i, valaddr,
+ offset, stream, recurse, val,
+ options, comma_needed,
+ outer_type, outer_offset, language);
+ continue;
+ }
+
+ if (comma_needed)
+ fprintf_filtered (stream, ", ");
+ comma_needed = 1;
+
+ if (options->prettyformat)
+ {
+ fprintf_filtered (stream, "\n");
+ print_spaces_filtered (2 + 2 * recurse, stream);
+ }
+ else
+ {
+ wrap_here (n_spaces (2 + 2 * recurse));
+ }
+
+ annotate_field_begin (TYPE_FIELD_TYPE (type, i));
+ fprintf_filtered (stream, "%.*s",
+ ada_name_prefix_len (TYPE_FIELD_NAME (type, i)),
+ TYPE_FIELD_NAME (type, i));
+ annotate_field_name_end ();
+ fputs_filtered (" => ", stream);
+ annotate_field_value ();
+
+ if (TYPE_FIELD_PACKED (type, i))
+ {
+ struct value *v;
+
+ /* Bitfields require special handling, especially due to byte
+ order problems. */
+ if (HAVE_CPLUS_STRUCT (type) && TYPE_FIELD_IGNORE (type, i))
+ {
+ fputs_filtered (_("<optimized out or zero length>"), stream);
+ }
+ else
+ {
+ int bit_pos = TYPE_FIELD_BITPOS (type, i);
+ int bit_size = TYPE_FIELD_BITSIZE (type, i);
+ struct value_print_options opts;
+
+ adjust_type_signedness (TYPE_FIELD_TYPE (type, i));
+ v = ada_value_primitive_packed_val
+ (NULL, valaddr,
+ offset + bit_pos / HOST_CHAR_BIT,
+ bit_pos % HOST_CHAR_BIT,
+ bit_size, TYPE_FIELD_TYPE (type, i));
+ opts = *options;
+ opts.deref_ref = 0;
+ val_print (TYPE_FIELD_TYPE (type, i),
+ value_contents_for_printing (v),
+ value_embedded_offset (v), 0,
+ stream, recurse + 1, v,
+ &opts, language);
+ }
+ }
+ else
+ {
+ struct value_print_options opts = *options;
+
+ opts.deref_ref = 0;
+ val_print (TYPE_FIELD_TYPE (type, i), valaddr,
+ (offset + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT),
+ 0, stream, recurse + 1, val, &opts, language);
+ }
+ annotate_field_end ();
+ }
- return result;
+ return comma_needed;
}
-/* Assuming TYPE is a simple array, print the value of this array located
- at VALADDR. See ada_val_print for a description of the various
- parameters of this function; they are identical. The semantics
- of the return value is also identical to ada_val_print. */
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_ARRAY of characters. */
-static int
-ada_val_print_array (struct type *type, const gdb_byte *valaddr,
- CORE_ADDR address, struct ui_file *stream, int recurse,
- const struct value *val,
- const struct value_print_options *options)
+static void
+ada_val_print_string (struct type *type, const gdb_byte *valaddr,
+ int offset, int offset_aligned, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ const struct value *original_value,
+ const struct value_print_options *options)
{
enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
struct type *elttype = TYPE_TARGET_TYPE (type);
- int result = 0;
+ unsigned int eltlen;
+ unsigned int len;
- /* For an array of chars, print with string syntax. */
- if (ada_is_string_type (type)
- && (options->format == 0 || options->format == 's'))
- {
- unsigned int eltlen;
- unsigned int len;
+ /* We know that ELTTYPE cannot possibly be null, because we assume
+ that we're called only when TYPE is a string-like type.
+ Similarly, the size of ELTTYPE should also be non-null, since
+ it's a character-like type. */
+ gdb_assert (elttype != NULL);
+ gdb_assert (TYPE_LENGTH (elttype) != 0);
- if (elttype == NULL)
- eltlen = 0;
- else
- eltlen = TYPE_LENGTH (elttype);
- if (eltlen == 0)
- len = 0;
- else
- len = TYPE_LENGTH (type) / eltlen;
+ eltlen = TYPE_LENGTH (elttype);
+ len = TYPE_LENGTH (type) / eltlen;
- if (options->prettyprint_arrays)
- print_spaces_filtered (2 + 2 * recurse, stream);
+ if (options->prettyformat_arrays)
+ print_spaces_filtered (2 + 2 * recurse, stream);
- /* If requested, look for the first null char and only print
- elements up to it. */
- if (options->stop_print_at_null)
- {
- int temp_len;
-
- /* Look for a NULL char. */
- for (temp_len = 0;
- (temp_len < len
- && temp_len < options->print_max
- && char_at (valaddr, temp_len, eltlen, byte_order) != 0);
- temp_len += 1);
- len = temp_len;
- }
-
- printstr (stream, elttype, valaddr, len, 0, eltlen, options);
- result = len;
+ /* If requested, look for the first null char and only print
+ elements up to it. */
+ if (options->stop_print_at_null)
+ {
+ int temp_len;
+
+ /* Look for a NULL char. */
+ for (temp_len = 0;
+ (temp_len < len
+ && temp_len < options->print_max
+ && char_at (valaddr + offset_aligned,
+ temp_len, eltlen, byte_order) != 0);
+ temp_len += 1);
+ len = temp_len;
}
+
+ printstr (stream, elttype, valaddr + offset_aligned, len, 0,
+ eltlen, options);
+}
+
+/* Implement Ada val_print-ing for GNAT arrays (Eg. fat pointers,
+ thin pointers, etc). */
+
+static void
+ada_val_print_gnat_array (struct type *type, const gdb_byte *valaddr,
+ int offset, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ const struct value *original_value,
+ const struct value_print_options *options,
+ const struct language_defn *language)
+{
+ struct value *mark = value_mark ();
+ struct value *val;
+
+ val = value_from_contents_and_address (type, valaddr + offset, address);
+ /* If this is a reference, coerce it now. This helps taking care
+ of the case where ADDRESS is meaningless because original_value
+ was not an lval. */
+ val = coerce_ref (val);
+ if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) /* array access type. */
+ val = ada_coerce_to_simple_array_ptr (val);
else
+ val = ada_coerce_to_simple_array (val);
+ if (val == NULL)
{
- fprintf_filtered (stream, "(");
- print_optional_low_bound (stream, type, options);
- if (TYPE_FIELD_BITSIZE (type, 0) > 0)
- val_print_packed_array_elements (type, valaddr, 0, stream,
- recurse, val, options);
- else
- val_print_array_elements (type, valaddr, address, stream,
- recurse, val, options, 0);
- fprintf_filtered (stream, ")");
+ gdb_assert (TYPE_CODE (type) == TYPE_CODE_TYPEDEF);
+ fprintf_filtered (stream, "0x0");
}
-
- return result;
+ else
+ val_print (value_type (val), value_contents_for_printing (val),
+ value_embedded_offset (val), value_address (val),
+ stream, recurse, val, options, language);
+ value_free_to_mark (mark);
}
-/* See the comment on ada_val_print. This function differs in that it
- does not catch evaluation errors (leaving that to ada_val_print). */
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_PTR. */
-static int
-ada_val_print_1 (struct type *type, const gdb_byte *valaddr0,
- int embedded_offset, CORE_ADDR address,
- struct ui_file *stream, int recurse,
- const struct value *original_value,
- const struct value_print_options *options)
+static void
+ada_val_print_ptr (struct type *type, const gdb_byte *valaddr,
+ int offset, int offset_aligned, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ const struct value *original_value,
+ const struct value_print_options *options,
+ const struct language_defn *language)
{
- unsigned int len;
- int i;
- struct type *elttype;
- LONGEST val;
- const gdb_byte *valaddr = valaddr0 + embedded_offset;
+ val_print (type, valaddr, offset, address, stream, recurse,
+ original_value, options, language_def (language_c));
- type = ada_check_typedef (type);
+ if (ada_is_tag_type (type))
+ {
+ struct value *val =
+ value_from_contents_and_address (type,
+ valaddr + offset_aligned,
+ address + offset_aligned);
+ const char *name = ada_tag_name (val);
+
+ if (name != NULL)
+ fprintf_filtered (stream, " (%s)", name);
+ }
+}
- if (ada_is_array_descriptor_type (type)
- || ada_is_constrained_packed_array_type (type))
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_INT or TYPE_CODE_RANGE. */
+
+static void
+ada_val_print_num (struct type *type, const gdb_byte *valaddr,
+ int offset, int offset_aligned, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ const struct value *original_value,
+ const struct value_print_options *options,
+ const struct language_defn *language)
+{
+ if (ada_is_fixed_point_type (type))
{
- int retn;
- struct value *mark = value_mark ();
- struct value *val;
+ LONGEST v = unpack_long (type, valaddr + offset_aligned);
- val = value_from_contents_and_address (type, valaddr, address);
- if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) /* array access type. */
- val = ada_coerce_to_simple_array_ptr (val);
- else
- val = ada_coerce_to_simple_array (val);
- if (val == NULL)
+ fprintf_filtered (stream, TYPE_LENGTH (type) < 4 ? "%.11g" : "%.17g",
+ (double) ada_fixed_to_float (type, v));
+ return;
+ }
+ else if (TYPE_CODE (type) == TYPE_CODE_RANGE)
+ {
+ struct type *target_type = TYPE_TARGET_TYPE (type);
+
+ if (TYPE_LENGTH (type) != TYPE_LENGTH (target_type))
{
- gdb_assert (TYPE_CODE (type) == TYPE_CODE_TYPEDEF);
- fprintf_filtered (stream, "0x0");
- retn = 0;
+ /* Obscure case of range type that has different length from
+ its base type. Perform a conversion, or we will get a
+ nonsense value. Actually, we could use the same
+ code regardless of lengths; I'm just avoiding a cast. */
+ struct value *v1
+ = value_from_contents_and_address (type, valaddr + offset, 0);
+ struct value *v = value_cast (target_type, v1);
+
+ val_print (target_type, value_contents_for_printing (v),
+ value_embedded_offset (v), 0, stream,
+ recurse + 1, v, options, language);
}
else
- retn = ada_val_print_1 (value_type (val), value_contents (val), 0,
- value_address (val), stream, recurse,
- NULL, options);
- value_free_to_mark (mark);
- return retn;
+ val_print (TYPE_TARGET_TYPE (type), valaddr, offset,
+ address, stream, recurse, original_value,
+ options, language);
+ return;
}
-
- valaddr = ada_aligned_value_addr (type, valaddr);
- embedded_offset -= valaddr - valaddr0 - embedded_offset;
- type = printable_val_type (type, valaddr);
-
- switch (TYPE_CODE (type))
+ else
{
- default:
- return c_val_print (type, valaddr0, embedded_offset, address, stream,
- recurse, original_value, options);
+ int format = (options->format ? options->format
+ : options->output_format);
- case TYPE_CODE_PTR:
- {
- int ret = c_val_print (type, valaddr0, embedded_offset, address,
- stream, recurse, original_value, options);
-
- if (ada_is_tag_type (type))
- {
- struct value *val =
- value_from_contents_and_address (type, valaddr, address);
- const char *name = ada_tag_name (val);
-
- if (name != NULL)
- fprintf_filtered (stream, " (%s)", name);
- return 0;
- }
- return ret;
- }
-
- case TYPE_CODE_INT:
- case TYPE_CODE_RANGE:
- if (ada_is_fixed_point_type (type))
+ if (format)
{
- LONGEST v = unpack_long (type, valaddr);
- int len = TYPE_LENGTH (type);
+ struct value_print_options opts = *options;
- fprintf_filtered (stream, len < 4 ? "%.11g" : "%.17g",
- (double) ada_fixed_to_float (type, v));
- return 0;
+ opts.format = format;
+ val_print_scalar_formatted (type, valaddr, offset_aligned,
+ original_value, &opts, 0, stream);
}
- else if (TYPE_CODE (type) == TYPE_CODE_RANGE)
+ else if (ada_is_system_address_type (type))
{
- struct type *target_type = TYPE_TARGET_TYPE (type);
+ /* FIXME: We want to print System.Address variables using
+ the same format as for any access type. But for some
+ reason GNAT encodes the System.Address type as an int,
+ so we have to work-around this deficiency by handling
+ System.Address values as a special case. */
- if (TYPE_LENGTH (type) != TYPE_LENGTH (target_type))
- {
- /* Obscure case of range type that has different length from
- its base type. Perform a conversion, or we will get a
- nonsense value. Actually, we could use the same
- code regardless of lengths; I'm just avoiding a cast. */
- struct value *v = value_cast (target_type,
- value_from_contents_and_address
- (type, valaddr, 0));
-
- return ada_val_print_1 (target_type, value_contents (v), 0, 0,
- stream, recurse + 1, NULL, options);
- }
- else
- return ada_val_print_1 (TYPE_TARGET_TYPE (type),
- valaddr0, embedded_offset,
- address, stream, recurse,
- original_value, options);
+ struct gdbarch *gdbarch = get_type_arch (type);
+ struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
+ CORE_ADDR addr = extract_typed_address (valaddr + offset_aligned,
+ ptr_type);
+
+ fprintf_filtered (stream, "(");
+ type_print (type, "", stream, -1);
+ fprintf_filtered (stream, ") ");
+ fputs_filtered (paddress (gdbarch, addr), stream);
}
else
{
- int format = (options->format ? options->format
- : options->output_format);
-
- if (format)
+ val_print_type_code_int (type, valaddr + offset_aligned, stream);
+ if (ada_is_character_type (type))
{
- struct value_print_options opts = *options;
+ LONGEST c;
- opts.format = format;
- print_scalar_formatted (valaddr, type, &opts, 0, stream);
- }
- else if (ada_is_system_address_type (type))
- {
- /* FIXME: We want to print System.Address variables using
- the same format as for any access type. But for some
- reason GNAT encodes the System.Address type as an int,
- so we have to work-around this deficiency by handling
- System.Address values as a special case. */
-
- struct gdbarch *gdbarch = get_type_arch (type);
- struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
- CORE_ADDR addr = extract_typed_address (valaddr, ptr_type);
-
- fprintf_filtered (stream, "(");
- type_print (type, "", stream, -1);
- fprintf_filtered (stream, ") ");
- fputs_filtered (paddress (gdbarch, addr), stream);
- }
- else
- {
- val_print_type_code_int (type, valaddr, stream);
- if (ada_is_character_type (type))
- {
- fputs_filtered (" ", stream);
- ada_printchar ((unsigned char) unpack_long (type, valaddr),
- type, stream);
- }
+ fputs_filtered (" ", stream);
+ c = unpack_long (type, valaddr + offset_aligned);
+ ada_printchar (c, type, stream);
}
- return 0;
}
+ return;
+ }
+}
- case TYPE_CODE_ENUM:
- if (options->format)
- {
- print_scalar_formatted (valaddr, type, options, 0, stream);
- break;
- }
- len = TYPE_NFIELDS (type);
- val = unpack_long (type, valaddr);
- for (i = 0; i < len; i++)
- {
- QUIT;
- if (val == TYPE_FIELD_BITPOS (type, i))
- {
- break;
- }
- }
- if (i < len)
- {
- const char *name = ada_enum_name (TYPE_FIELD_NAME (type, i));
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_ENUM. */
- if (name[0] == '\'')
- fprintf_filtered (stream, "%ld %s", (long) val, name);
- else
- fputs_filtered (name, stream);
- }
+static void
+ada_val_print_enum (struct type *type, const gdb_byte *valaddr,
+ int offset, int offset_aligned, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ const struct value *original_value,
+ const struct value_print_options *options,
+ const struct language_defn *language)
+{
+ int i;
+ unsigned int len;
+ LONGEST val;
+
+ if (options->format)
+ {
+ val_print_scalar_formatted (type, valaddr, offset_aligned,
+ original_value, options, 0, stream);
+ return;
+ }
+
+ len = TYPE_NFIELDS (type);
+ val = unpack_long (type, valaddr + offset_aligned);
+ for (i = 0; i < len; i++)
+ {
+ QUIT;
+ if (val == TYPE_FIELD_ENUMVAL (type, i))
+ break;
+ }
+
+ if (i < len)
+ {
+ const char *name = ada_enum_name (TYPE_FIELD_NAME (type, i));
+
+ if (name[0] == '\'')
+ fprintf_filtered (stream, "%ld %s", (long) val, name);
else
- {
- print_longest (stream, 'd', 0, val);
- }
+ fputs_filtered (name, stream);
+ }
+ else
+ print_longest (stream, 'd', 0, val);
+}
+
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_FLT. */
+
+static void
+ada_val_print_flt (struct type *type, const gdb_byte *valaddr,
+ int offset, int offset_aligned, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ const struct value *original_value,
+ const struct value_print_options *options,
+ const struct language_defn *language)
+{
+ if (options->format)
+ {
+ val_print (type, valaddr, offset, address, stream, recurse,
+ original_value, options, language_def (language_c));
+ return;
+ }
+
+ ada_print_floating (valaddr + offset, type, stream);
+}
+
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_STRUCT or TYPE_CODE_UNION. */
+
+static void
+ada_val_print_struct_union
+ (struct type *type, const gdb_byte *valaddr, int offset,
+ int offset_aligned, CORE_ADDR address, struct ui_file *stream,
+ int recurse, const struct value *original_value,
+ const struct value_print_options *options,
+ const struct language_defn *language)
+{
+ if (ada_is_bogus_array_descriptor (type))
+ {
+ fprintf_filtered (stream, "(...?)");
+ return;
+ }
+
+ fprintf_filtered (stream, "(");
+
+ if (print_field_values (type, valaddr, offset_aligned,
+ stream, recurse, original_value, options,
+ 0, type, offset_aligned, language) != 0
+ && options->prettyformat)
+ {
+ fprintf_filtered (stream, "\n");
+ print_spaces_filtered (2 * recurse, stream);
+ }
+
+ fprintf_filtered (stream, ")");
+}
+
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_ARRAY. */
+
+static void
+ada_val_print_array (struct type *type, const gdb_byte *valaddr,
+ int offset, int offset_aligned, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ const struct value *original_value,
+ const struct value_print_options *options)
+{
+ /* For an array of characters, print with string syntax. */
+ if (ada_is_string_type (type)
+ && (options->format == 0 || options->format == 's'))
+ {
+ ada_val_print_string (type, valaddr, offset, offset_aligned,
+ address, stream, recurse, original_value,
+ options);
+ return;
+ }
+
+ fprintf_filtered (stream, "(");
+ print_optional_low_bound (stream, type, options);
+ if (TYPE_FIELD_BITSIZE (type, 0) > 0)
+ val_print_packed_array_elements (type, valaddr, offset_aligned,
+ 0, stream, recurse,
+ original_value, options);
+ else
+ val_print_array_elements (type, valaddr, offset_aligned, address,
+ stream, recurse, original_value,
+ options, 0);
+ fprintf_filtered (stream, ")");
+}
+
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_REF. */
+
+static void
+ada_val_print_ref (struct type *type, const gdb_byte *valaddr,
+ int offset, int offset_aligned, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ const struct value *original_value,
+ const struct value_print_options *options,
+ const struct language_defn *language)
+{
+ /* For references, the debugger is expected to print the value as
+ an address if DEREF_REF is null. But printing an address in place
+ of the object value would be confusing to an Ada programmer.
+ So, for Ada values, we print the actual dereferenced value
+ regardless. */
+ struct type *elttype = check_typedef (TYPE_TARGET_TYPE (type));
+ struct value *deref_val;
+ CORE_ADDR deref_val_int;
+
+ if (TYPE_CODE (elttype) == TYPE_CODE_UNDEF)
+ {
+ fputs_filtered ("<ref to undefined type>", stream);
+ return;
+ }
+
+ deref_val = coerce_ref_if_computed (original_value);
+ if (deref_val)
+ {
+ if (ada_is_tagged_type (value_type (deref_val), 1))
+ deref_val = ada_tag_value_at_base_address (deref_val);
+
+ common_val_print (deref_val, stream, recurse + 1, options,
+ language);
+ return;
+ }
+
+ deref_val_int = unpack_pointer (type, valaddr + offset_aligned);
+ if (deref_val_int == 0)
+ {
+ fputs_filtered ("(null)", stream);
+ return;
+ }
+
+ deref_val
+ = ada_value_ind (value_from_pointer (lookup_pointer_type (elttype),
+ deref_val_int));
+ if (ada_is_tagged_type (value_type (deref_val), 1))
+ deref_val = ada_tag_value_at_base_address (deref_val);
+
+ val_print (value_type (deref_val),
+ value_contents_for_printing (deref_val),
+ value_embedded_offset (deref_val),
+ value_address (deref_val), stream, recurse + 1,
+ deref_val, options, language);
+}
+
+/* See the comment on ada_val_print. This function differs in that it
+ does not catch evaluation errors (leaving that to ada_val_print). */
+
+static void
+ada_val_print_1 (struct type *type, const gdb_byte *valaddr,
+ int offset, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ const struct value *original_value,
+ const struct value_print_options *options,
+ const struct language_defn *language)
+{
+ int offset_aligned;
+
+ type = ada_check_typedef (type);
+
+ if (ada_is_array_descriptor_type (type)
+ || (ada_is_constrained_packed_array_type (type)
+ && TYPE_CODE (type) != TYPE_CODE_PTR))
+ {
+ ada_val_print_gnat_array (type, valaddr, offset, address,
+ stream, recurse, original_value,
+ options, language);
+ return;
+ }
+
+ offset_aligned = offset + ada_aligned_value_addr (type, valaddr) - valaddr;
+ type = printable_val_type (type, valaddr + offset_aligned);
+
+ switch (TYPE_CODE (type))
+ {
+ default:
+ val_print (type, valaddr, offset, address, stream, recurse,
+ original_value, options, language_def (language_c));
break;
- case TYPE_CODE_FLAGS:
- if (options->format)
- print_scalar_formatted (valaddr, type, options, 0, stream);
- else
- val_print_type_code_flags (type, valaddr, stream);
+ case TYPE_CODE_PTR:
+ ada_val_print_ptr (type, valaddr, offset, offset_aligned,
+ address, stream, recurse, original_value,
+ options, language);
+ break;
+
+ case TYPE_CODE_INT:
+ case TYPE_CODE_RANGE:
+ ada_val_print_num (type, valaddr, offset, offset_aligned,
+ address, stream, recurse, original_value,
+ options, language);
+ break;
+
+ case TYPE_CODE_ENUM:
+ ada_val_print_enum (type, valaddr, offset, offset_aligned,
+ address, stream, recurse, original_value,
+ options, language);
break;
case TYPE_CODE_FLT:
- if (options->format)
- return c_val_print (type, valaddr0, embedded_offset, address, stream,
- recurse, original_value, options);
- else
- ada_print_floating (valaddr0 + embedded_offset, type, stream);
+ ada_val_print_flt (type, valaddr, offset, offset_aligned,
+ address, stream, recurse, original_value,
+ options, language);
break;
case TYPE_CODE_UNION:
case TYPE_CODE_STRUCT:
- if (ada_is_bogus_array_descriptor (type))
- {
- fprintf_filtered (stream, "(...?)");
- return 0;
- }
- else
- {
- print_record (type, valaddr, stream, recurse, original_value,
- options);
- return 0;
- }
+ ada_val_print_struct_union (type, valaddr, offset, offset_aligned,
+ address, stream, recurse,
+ original_value, options, language);
+ break;
case TYPE_CODE_ARRAY:
- return ada_val_print_array (type, valaddr, address, stream,
- recurse, original_value, options);
+ ada_val_print_array (type, valaddr, offset, offset_aligned,
+ address, stream, recurse, original_value,
+ options);
+ return;
case TYPE_CODE_REF:
- /* For references, the debugger is expected to print the value as
- an address if DEREF_REF is null. But printing an address in place
- of the object value would be confusing to an Ada programmer.
- So, for Ada values, we print the actual dereferenced value
- regardless. */
- elttype = check_typedef (TYPE_TARGET_TYPE (type));
-
- if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
- {
- LONGEST deref_val_int = (LONGEST) unpack_pointer (type, valaddr);
-
- if (deref_val_int != 0)
- {
- struct value *deref_val =
- ada_value_ind (value_from_longest
- (lookup_pointer_type (elttype),
- deref_val_int));
-
- val_print (value_type (deref_val),
- value_contents (deref_val), 0,
- value_address (deref_val), stream, recurse + 1,
- original_value, options, current_language);
- }
- else
- fputs_filtered ("(null)", stream);
- }
- else
- fputs_filtered ("???", stream);
-
+ ada_val_print_ref (type, valaddr, offset, offset_aligned,
+ address, stream, recurse, original_value,
+ options, language);
break;
}
- gdb_flush (stream);
- return 0;
}
-static int
-print_variant_part (struct type *type, int field_num, const gdb_byte *valaddr,
- struct ui_file *stream, int recurse,
- const struct value *val,
- const struct value_print_options *options,
- int comma_needed,
- struct type *outer_type, const gdb_byte *outer_valaddr)
+/* See val_print for a description of the various parameters of this
+ function; they are identical. */
+
+void
+ada_val_print (struct type *type, const gdb_byte *valaddr,
+ int embedded_offset, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ const struct value *val,
+ const struct value_print_options *options)
{
- struct type *var_type = TYPE_FIELD_TYPE (type, field_num);
- int which = ada_which_variant_applies (var_type, outer_type, outer_valaddr);
+ volatile struct gdb_exception except;
- if (which < 0)
- return 0;
- else
- return print_field_values
- (TYPE_FIELD_TYPE (var_type, which),
- valaddr + TYPE_FIELD_BITPOS (type, field_num) / HOST_CHAR_BIT
- + TYPE_FIELD_BITPOS (var_type, which) / HOST_CHAR_BIT,
- stream, recurse, val, options,
- comma_needed, outer_type, outer_valaddr);
+ /* XXX: this catches QUIT/ctrl-c as well. Isn't that busted? */
+ TRY_CATCH (except, RETURN_MASK_ALL)
+ {
+ ada_val_print_1 (type, valaddr, embedded_offset, address,
+ stream, recurse, val, options,
+ current_language);
+ }
}
-int
+void
ada_value_print (struct value *val0, struct ui_file *stream,
const struct value_print_options *options)
{
struct value *val = ada_to_fixed_value (val0);
CORE_ADDR address = value_address (val);
- struct type *type = value_type (val);
+ struct type *type = ada_check_typedef (value_enclosing_type (val));
struct value_print_options opts;
/* If it is a pointer, indicate what it points to. */
fprintf_filtered (stream, "(");
type_print (type, "", stream, -1);
fprintf_filtered (stream, ") (...?)");
- return 0;
+ return;
}
opts = *options;
opts.deref_ref = 1;
- return (val_print (type, value_contents (val), 0, address,
- stream, 0, val, &opts, current_language));
-}
-
-static void
-print_record (struct type *type, const gdb_byte *valaddr,
- struct ui_file *stream, int recurse,
- const struct value *val,
- const struct value_print_options *options)
-{
- type = ada_check_typedef (type);
-
- fprintf_filtered (stream, "(");
-
- if (print_field_values (type, valaddr, stream, recurse, val, options,
- 0, type, valaddr) != 0 && options->pretty)
- {
- fprintf_filtered (stream, "\n");
- print_spaces_filtered (2 * recurse, stream);
- }
-
- fprintf_filtered (stream, ")");
-}
-
-/* Print out fields of value at VALADDR having structure type TYPE.
-
- TYPE, VALADDR, STREAM, RECURSE, and OPTIONS have the
- same meanings as in ada_print_value and ada_val_print.
-
- OUTER_TYPE and OUTER_VALADDR give type and address of enclosing record
- (used to get discriminant values when printing variant parts).
-
- COMMA_NEEDED is 1 if fields have been printed at the current recursion
- level, so that a comma is needed before any field printed by this
- call.
-
- Returns 1 if COMMA_NEEDED or any fields were printed. */
-
-static int
-print_field_values (struct type *type, const gdb_byte *valaddr,
- struct ui_file *stream, int recurse,
- const struct value *val,
- const struct value_print_options *options,
- int comma_needed,
- struct type *outer_type, const gdb_byte *outer_valaddr)
-{
- int i, len;
-
- len = TYPE_NFIELDS (type);
-
- for (i = 0; i < len; i += 1)
- {
- if (ada_is_ignored_field (type, i))
- continue;
-
- if (ada_is_wrapper_field (type, i))
- {
- comma_needed =
- print_field_values (TYPE_FIELD_TYPE (type, i),
- valaddr
- + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT,
- stream, recurse, val, options,
- comma_needed, type, valaddr);
- continue;
- }
- else if (ada_is_variant_part (type, i))
- {
- comma_needed =
- print_variant_part (type, i, valaddr,
- stream, recurse, val, options, comma_needed,
- outer_type, outer_valaddr);
- continue;
- }
-
- if (comma_needed)
- fprintf_filtered (stream, ", ");
- comma_needed = 1;
-
- if (options->pretty)
- {
- fprintf_filtered (stream, "\n");
- print_spaces_filtered (2 + 2 * recurse, stream);
- }
- else
- {
- wrap_here (n_spaces (2 + 2 * recurse));
- }
- if (options->inspect_it)
- {
- if (TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_PTR)
- fputs_filtered ("\"( ptr \"", stream);
- else
- fputs_filtered ("\"( nodef \"", stream);
- fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
- language_cplus, DMGL_NO_OPTS);
- fputs_filtered ("\" \"", stream);
- fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
- language_cplus, DMGL_NO_OPTS);
- fputs_filtered ("\") \"", stream);
- }
- else
- {
- annotate_field_begin (TYPE_FIELD_TYPE (type, i));
- fprintf_filtered (stream, "%.*s",
- ada_name_prefix_len (TYPE_FIELD_NAME (type, i)),
- TYPE_FIELD_NAME (type, i));
- annotate_field_name_end ();
- fputs_filtered (" => ", stream);
- annotate_field_value ();
- }
-
- if (TYPE_FIELD_PACKED (type, i))
- {
- struct value *v;
-
- /* Bitfields require special handling, especially due to byte
- order problems. */
- if (HAVE_CPLUS_STRUCT (type) && TYPE_FIELD_IGNORE (type, i))
- {
- fputs_filtered (_("<optimized out or zero length>"), stream);
- }
- else
- {
- int bit_pos = TYPE_FIELD_BITPOS (type, i);
- int bit_size = TYPE_FIELD_BITSIZE (type, i);
- struct value_print_options opts;
-
- adjust_type_signedness (TYPE_FIELD_TYPE (type, i));
- v = ada_value_primitive_packed_val (NULL, valaddr,
- bit_pos / HOST_CHAR_BIT,
- bit_pos % HOST_CHAR_BIT,
- bit_size,
- TYPE_FIELD_TYPE (type, i));
- opts = *options;
- opts.deref_ref = 0;
- val_print (TYPE_FIELD_TYPE (type, i), value_contents (v), 0, 0,
- stream, recurse + 1, v,
- &opts, current_language);
- }
- }
- else
- {
- struct value_print_options opts = *options;
-
- opts.deref_ref = 0;
- ada_val_print (TYPE_FIELD_TYPE (type, i),
- valaddr + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT,
- 0, 0, stream, recurse + 1, val, &opts);
- }
- annotate_field_end ();
- }
-
- return comma_needed;
+ val_print (type, value_contents_for_printing (val),
+ value_embedded_offset (val), address,
+ stream, 0, val, &opts, current_language);
}
projects / platform / upstream / binutils.git / blobdiff