/* 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, 1988-1989, 1991-1994, 1997, 2001-2012 Free
+ Software Foundation, Inc.
This file is part of GDB.
#include "exceptions.h"
#include "objfiles.h"
-static void print_record (struct type *, const gdb_byte *, struct ui_file *,
+static void print_record (struct type *, const gdb_byte *, int,
+ 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 *);
+ int, struct type *, int);
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 *);
+static void ada_val_print_1 (struct type *, const gdb_byte *, int, CORE_ADDR,
+ struct ui_file *, int,
+ const struct value *,
+ const struct value_print_options *);
\f
/* Make TYPE unsigned if its range of values includes no negatives. */
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,
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_available_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 ();
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);
+ return (int) extract_unsigned_integer (string + type_len * i,
+ type_len, byte_order);
}
/* Wrapper around memcpy to make it legal argument to ui_file_put. */
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);
}
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 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 is printed as a string, returns the number of string characters
- printed.
-
- RECURSE indicates the amount of indentation to supply before
- continuation lines; this amount is roughly twice the value of RECURSE. */
+/* See val_print for a description of the various parameters of this
+ function; they are identical. */
-int
-ada_val_print (struct type *type, const gdb_byte *valaddr0,
+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)
{
volatile struct gdb_exception except;
- int result = 0;
+ /* XXX: this catches QUIT/ctrl-c as well. Isn't that busted? */
TRY_CATCH (except, RETURN_MASK_ALL)
{
- result = ada_val_print_1 (type, valaddr0, embedded_offset, address,
- stream, recurse, val, options);
+ ada_val_print_1 (type, valaddr, embedded_offset, address,
+ stream, recurse, val, options);
}
-
- if (except.reason < 0)
- result = 0;
-
- return result;
}
/* 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. */
+ at VALADDR + OFFSET. See ada_val_print for a description of the various
+ parameters of this function; they are identical. */
-static int
+static void
ada_val_print_array (struct type *type, const gdb_byte *valaddr,
- CORE_ADDR address, struct ui_file *stream, int recurse,
+ int offset, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
const struct value *val,
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;
-
/* For an array of chars, print with string syntax. */
if (ada_is_string_type (type)
&& (options->format == 0 || options->format == 's'))
{
+ enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
+ struct type *elttype = TYPE_TARGET_TYPE (type);
unsigned int eltlen;
unsigned int len;
- if (elttype == NULL)
- eltlen = 0;
- else
- eltlen = TYPE_LENGTH (elttype);
- if (eltlen == 0)
- len = 0;
- else
- len = TYPE_LENGTH (type) / eltlen;
+ /* We know that ELTTYPE cannot possibly be null, because we found
+ that 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);
+
+ eltlen = TYPE_LENGTH (elttype);
+ len = TYPE_LENGTH (type) / eltlen;
if (options->prettyprint_arrays)
print_spaces_filtered (2 + 2 * recurse, stream);
for (temp_len = 0;
(temp_len < len
&& temp_len < options->print_max
- && char_at (valaddr, temp_len, eltlen, byte_order) != 0);
+ && char_at (valaddr + offset,
+ temp_len, eltlen, byte_order) != 0);
temp_len += 1);
len = temp_len;
}
- printstr (stream, elttype, valaddr, len, 0, eltlen, options);
- result = len;
+ printstr (stream, elttype, valaddr + offset, len, 0, eltlen, options);
}
else
{
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);
+ val_print_packed_array_elements (type, valaddr, offset,
+ 0, stream, recurse, val, options);
else
- val_print_array_elements (type, valaddr, address, stream,
- recurse, val, options, 0);
+ val_print_array_elements (type, valaddr, offset, address,
+ stream, recurse, val, options, 0);
fprintf_filtered (stream, ")");
}
-
- return result;
}
/* 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 int
-ada_val_print_1 (struct type *type, const gdb_byte *valaddr0,
- int embedded_offset, CORE_ADDR address,
+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)
int i;
struct type *elttype;
LONGEST val;
- const gdb_byte *valaddr = valaddr0 + embedded_offset;
+ int offset_aligned;
type = ada_check_typedef (type);
if (ada_is_array_descriptor_type (type)
- || ada_is_constrained_packed_array_type (type))
+ || (ada_is_constrained_packed_array_type (type)
+ && TYPE_CODE (type) != TYPE_CODE_PTR))
{
- int retn;
struct value *mark = value_mark ();
struct value *val;
- val = value_from_contents_and_address (type, valaddr, address);
+ 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
{
gdb_assert (TYPE_CODE (type) == TYPE_CODE_TYPEDEF);
fprintf_filtered (stream, "0x0");
- retn = 0;
}
else
- retn = ada_val_print_1 (value_type (val), value_contents (val), 0,
- value_address (val), stream, recurse,
- NULL, options);
+ ada_val_print_1 (value_type (val),
+ value_contents_for_printing (val),
+ value_embedded_offset (val),
+ value_address (val), stream, recurse,
+ val, options);
value_free_to_mark (mark);
- return retn;
+ return;
}
- valaddr = ada_aligned_value_addr (type, valaddr);
- embedded_offset -= valaddr - valaddr0 - embedded_offset;
- type = printable_val_type (type, valaddr);
+ offset_aligned = offset + ada_aligned_value_addr (type, valaddr) - valaddr;
+ type = printable_val_type (type, valaddr + offset_aligned);
switch (TYPE_CODE (type))
{
default:
- return c_val_print (type, valaddr0, embedded_offset, address, stream,
- recurse, original_value, options);
+ c_val_print (type, valaddr, offset, address, stream,
+ recurse, original_value, options);
+ break;
case TYPE_CODE_PTR:
{
- int ret = c_val_print (type, valaddr0, embedded_offset, address,
- stream, recurse, original_value, options);
+ c_val_print (type, valaddr, offset, address,
+ stream, recurse, original_value, options);
if (ada_is_tag_type (type))
{
- struct value *val =
- value_from_contents_and_address (type, valaddr, address);
+ 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);
- return 0;
- }
- return ret;
+ }
+ return;
}
case TYPE_CODE_INT:
case TYPE_CODE_RANGE:
if (ada_is_fixed_point_type (type))
{
- LONGEST v = unpack_long (type, valaddr);
+ LONGEST v = unpack_long (type, valaddr + offset_aligned);
int len = TYPE_LENGTH (type);
fprintf_filtered (stream, len < 4 ? "%.11g" : "%.17g",
(double) ada_fixed_to_float (type, v));
- return 0;
+ return;
}
else if (TYPE_CODE (type) == TYPE_CODE_RANGE)
{
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);
+ struct value *v1
+ = value_from_contents_and_address (type, valaddr + offset, 0);
+ struct value *v = value_cast (target_type, v1);
+
+ ada_val_print_1 (target_type,
+ value_contents_for_printing (v),
+ value_embedded_offset (v), 0,
+ stream, recurse + 1, v, options);
}
else
- return ada_val_print_1 (TYPE_TARGET_TYPE (type),
- valaddr0, embedded_offset,
- address, stream, recurse,
- original_value, options);
+ ada_val_print_1 (TYPE_TARGET_TYPE (type),
+ valaddr, offset,
+ address, stream, recurse,
+ original_value, options);
+ return;
}
else
{
struct value_print_options opts = *options;
opts.format = format;
- print_scalar_formatted (valaddr, type, &opts, 0, stream);
+ val_print_scalar_formatted (type, valaddr, offset_aligned,
+ original_value, &opts, 0, stream);
}
else if (ada_is_system_address_type (type))
{
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);
+ CORE_ADDR addr = extract_typed_address (valaddr + offset_aligned,
+ ptr_type);
fprintf_filtered (stream, "(");
type_print (type, "", stream, -1);
}
else
{
- val_print_type_code_int (type, valaddr, stream);
+ val_print_type_code_int (type, valaddr + offset_aligned, stream);
if (ada_is_character_type (type))
{
+ LONGEST c;
+
fputs_filtered (" ", stream);
- ada_printchar ((unsigned char) unpack_long (type, valaddr),
- type, 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);
+ val_print_scalar_formatted (type, valaddr, offset_aligned,
+ original_value, options, 0, stream);
break;
}
len = TYPE_NFIELDS (type);
- val = unpack_long (type, valaddr);
+ val = unpack_long (type, valaddr + offset_aligned);
for (i = 0; i < len; i++)
{
QUIT;
case TYPE_CODE_FLAGS:
if (options->format)
- print_scalar_formatted (valaddr, type, options, 0, stream);
+ val_print_scalar_formatted (type, valaddr, offset_aligned,
+ original_value, options, 0, stream);
else
- val_print_type_code_flags (type, valaddr, stream);
+ val_print_type_code_flags (type, valaddr + offset_aligned, stream);
break;
case TYPE_CODE_FLT:
if (options->format)
- return c_val_print (type, valaddr0, embedded_offset, address, stream,
- recurse, original_value, options);
+ {
+ c_val_print (type, valaddr, offset, address, stream,
+ recurse, original_value, options);
+ return;
+ }
else
- ada_print_floating (valaddr0 + embedded_offset, type, stream);
+ ada_print_floating (valaddr + offset, type, stream);
break;
case TYPE_CODE_UNION:
if (ada_is_bogus_array_descriptor (type))
{
fprintf_filtered (stream, "(...?)");
- return 0;
+ return;
}
else
{
- print_record (type, valaddr, stream, recurse, original_value,
- options);
- return 0;
+ print_record (type, valaddr, offset_aligned,
+ stream, recurse, original_value, options);
+ return;
}
case TYPE_CODE_ARRAY:
- return ada_val_print_array (type, valaddr, address, stream,
- recurse, original_value, options);
+ ada_val_print_array (type, valaddr, offset_aligned,
+ address, stream, recurse, original_value,
+ options);
+ return;
case TYPE_CODE_REF:
/* For references, the debugger is expected to print the value as
if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
{
- LONGEST deref_val_int = (LONGEST) unpack_pointer (type, valaddr);
+ CORE_ADDR deref_val_int;
+ struct value *deref_val;
+ deref_val = coerce_ref_if_computed (original_value);
+ if (deref_val)
+ {
+ common_val_print (deref_val, stream, recurse + 1, options,
+ current_language);
+ break;
+ }
+
+ deref_val_int = unpack_pointer (type, valaddr + offset_aligned);
if (deref_val_int != 0)
{
struct value *deref_val =
- ada_value_ind (value_from_longest
+ ada_value_ind (value_from_pointer
(lookup_pointer_type (elttype),
deref_val_int));
val_print (value_type (deref_val),
- value_contents (deref_val), 0,
+ value_contents_for_printing (deref_val),
+ value_embedded_offset (deref_val),
value_address (deref_val), stream, recurse + 1,
- original_value, options, current_language);
+ deref_val, options, current_language);
}
else
fputs_filtered ("(null)", stream);
break;
}
gdb_flush (stream);
- return 0;
}
static int
-print_variant_part (struct type *type, int field_num, const gdb_byte *valaddr,
+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, const gdb_byte *outer_valaddr)
+ struct type *outer_type, int outer_offset)
{
struct type *var_type = TYPE_FIELD_TYPE (type, field_num);
- int which = ada_which_variant_applies (var_type, outer_type, outer_valaddr);
+ int which = ada_which_variant_applies (var_type, outer_type,
+ valaddr + outer_offset);
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
+ 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_valaddr);
+ comma_needed, outer_type, outer_offset);
}
-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_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));
+ val_print (type, value_contents_for_printing (val),
+ value_embedded_offset (val), address,
+ stream, 0, val, &opts, current_language);
}
static void
print_record (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)
fprintf_filtered (stream, "(");
- if (print_field_values (type, valaddr, stream, recurse, val, options,
- 0, type, valaddr) != 0 && options->pretty)
+ if (print_field_values (type, valaddr, offset,
+ stream, recurse, val, options,
+ 0, type, offset) != 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.
+/* Print out fields of value at VALADDR + OFFSET having structure type TYPE.
- TYPE, VALADDR, STREAM, RECURSE, and OPTIONS have the
- same meanings as in ada_print_value and ada_val_print.
+ TYPE, VALADDR, OFFSET, 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).
+ 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
static int
print_field_values (struct type *type, const gdb_byte *valaddr,
- struct ui_file *stream, int recurse,
+ 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, const gdb_byte *outer_valaddr)
+ struct type *outer_type, int outer_offset)
{
int i, len;
{
comma_needed =
print_field_values (TYPE_FIELD_TYPE (type, i),
- valaddr
- + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT,
+ valaddr,
+ (offset
+ + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT),
stream, recurse, val, options,
- comma_needed, type, valaddr);
+ comma_needed, type, offset);
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);
+ offset, stream, recurse, val,
+ options, comma_needed,
+ outer_type, outer_offset);
continue;
}
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));
+ 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 (v), 0, 0,
+ val_print (TYPE_FIELD_TYPE (type, i),
+ value_contents_for_printing (v),
+ value_embedded_offset (v), 0,
stream, recurse + 1, v,
&opts, current_language);
}
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);
+ valaddr,
+ (offset
+ + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT),
+ 0, stream, recurse + 1, val, &opts);
}
annotate_field_end ();
}
projects / deliverable / binutils-gdb.git / blobdiff