/* Support for printing C values for GDB, the GNU debugger.
- Copyright (C) 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
- 1998, 1999, 2000, 2001, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 1986-2015 Free Software Foundation, Inc.
This file is part of GDB.
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
-#include "gdb_string.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "c-lang.h"
#include "cp-abi.h"
#include "target.h"
+#include "objfiles.h"
\f
-/* 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 (gdbarch, address), stream);
- fputs_filtered (": ", stream);
- }
- print_address_demangle (gdbarch, func_addr, stream, demangle);
-}
-
-
/* A helper for c_textual_element_type. This checks the name of the
typedef. This is bogus but it isn't apparent that the compiler
provides us the help we may need. */
return 0;
}
-/* See 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 val_print. */
+/* Decorations for C. */
-int
-c_val_print (struct type *type, const gdb_byte *valaddr,
- int embedded_offset, CORE_ADDR address,
- struct ui_file *stream, int recurse,
- const struct value *original_value,
- const struct value_print_options *options)
+static const struct generic_val_print_decorations c_decorations =
{
+ "",
+ " + ",
+ " * I",
+ "true",
+ "false",
+ "void"
+};
+
+/* Print a pointer based on the type of its target.
+
+ Arguments to this functions are roughly the same as those in c_val_print.
+ A difference is that ADDRESS is the address to print, with embedded_offset
+ already added. UNRESOLVED_ELTTYPE and ELTTYPE represent the pointed type,
+ respectively before and after check_typedef. */
+
+static void
+print_unpacked_pointer (struct type *type, struct type *elttype,
+ struct type *unresolved_elttype,
+ const gdb_byte *valaddr, int embedded_offset,
+ CORE_ADDR address, struct ui_file *stream, int recurse,
+ const struct value_print_options *options)
+{
+ int want_space = 0;
struct gdbarch *gdbarch = get_type_arch (type);
- enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- unsigned int i = 0; /* Number of characters printed. */
- unsigned len;
- struct type *elttype, *unresolved_elttype;
- struct type *unresolved_type = type;
- unsigned eltlen;
- LONGEST val;
- CORE_ADDR addr;
- CHECK_TYPEDEF (type);
- switch (TYPE_CODE (type))
+ if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
{
- case TYPE_CODE_ARRAY:
- unresolved_elttype = TYPE_TARGET_TYPE (type);
- elttype = check_typedef (unresolved_elttype);
- if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0)
- {
- LONGEST low_bound, high_bound;
-
- if (!get_array_bounds (type, &low_bound, &high_bound))
- error (_("Could not determine the array high bound"));
+ /* Try to print what function it points to. */
+ print_function_pointer_address (options, gdbarch, address, stream);
+ return;
+ }
- eltlen = TYPE_LENGTH (elttype);
- len = high_bound - low_bound + 1;
- if (options->prettyprint_arrays)
- {
- print_spaces_filtered (2 + 2 * recurse, stream);
- }
+ if (options->symbol_print)
+ want_space = print_address_demangle (options, gdbarch, address, stream,
+ demangle);
+ else if (options->addressprint)
+ {
+ fputs_filtered (paddress (gdbarch, address), stream);
+ want_space = 1;
+ }
- /* Print arrays of textual chars with a string syntax, as
- long as the entire array is valid. */
- if (c_textual_element_type (unresolved_elttype,
- options->format)
- && value_bits_valid (original_value,
- TARGET_CHAR_BIT * embedded_offset,
- TARGET_CHAR_BIT * TYPE_LENGTH (type)))
- {
- /* If requested, look for the first null char and only
- print elements up to it. */
- if (options->stop_print_at_null)
- {
- unsigned int temp_len;
-
- for (temp_len = 0;
- (temp_len < len
- && temp_len < options->print_max
- && extract_unsigned_integer (valaddr + embedded_offset
- + temp_len * eltlen,
- eltlen, byte_order) != 0);
- ++temp_len)
- ;
- len = temp_len;
- }
+ /* For a pointer to a textual type, also print the string
+ pointed to, unless pointer is null. */
- LA_PRINT_STRING (stream, unresolved_elttype,
- valaddr + embedded_offset, len,
- NULL, 0, options);
- i = len;
- }
- else
- {
- fprintf_filtered (stream, "{");
- /* If this is a virtual function table, print the 0th
- entry specially, and the rest of the members
- normally. */
- if (cp_is_vtbl_ptr_type (elttype))
- {
- i = 1;
- fprintf_filtered (stream, _("%d vtable entries"),
- len - 1);
- }
- else
- {
- i = 0;
- }
- val_print_array_elements (type, valaddr, embedded_offset,
- address, stream,
- recurse, original_value, options, i);
- fprintf_filtered (stream, "}");
- }
- break;
+ if (c_textual_element_type (unresolved_elttype, options->format)
+ && address != 0)
+ {
+ if (want_space)
+ fputs_filtered (" ", stream);
+ val_print_string (unresolved_elttype, NULL, address, -1, stream, options);
+ }
+ else if (cp_is_vtbl_member (type))
+ {
+ /* Print vtbl's nicely. */
+ CORE_ADDR vt_address = unpack_pointer (type, valaddr + embedded_offset);
+ struct bound_minimal_symbol msymbol =
+ lookup_minimal_symbol_by_pc (vt_address);
+
+ /* If 'symbol_print' is set, we did the work above. */
+ if (!options->symbol_print
+ && (msymbol.minsym != NULL)
+ && (vt_address == BMSYMBOL_VALUE_ADDRESS (msymbol)))
+ {
+ if (want_space)
+ fputs_filtered (" ", stream);
+ fputs_filtered (" <", stream);
+ fputs_filtered (MSYMBOL_PRINT_NAME (msymbol.minsym), stream);
+ fputs_filtered (">", stream);
+ want_space = 1;
}
- /* Array of unspecified length: treat like pointer to first
- elt. */
- addr = address;
- goto print_unpacked_pointer;
- case TYPE_CODE_MEMBERPTR:
- if (options->format)
+ if (vt_address && options->vtblprint)
{
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, options, 0, stream);
- break;
- }
- cp_print_class_member (valaddr + embedded_offset, type, stream, "&");
- break;
+ struct value *vt_val;
+ struct symbol *wsym = NULL;
+ struct type *wtype;
+ struct block *block = NULL;
+ struct field_of_this_result is_this_fld;
- case TYPE_CODE_METHODPTR:
- cplus_print_method_ptr (valaddr + embedded_offset, type, stream);
- break;
+ if (want_space)
+ fputs_filtered (" ", stream);
- case TYPE_CODE_PTR:
- if (options->format && options->format != 's')
- {
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, options, 0, stream);
- break;
- }
- if (options->vtblprint && cp_is_vtbl_ptr_type (type))
- {
- /* Print the unmangled name if desired. */
- /* Print vtable entry - we only get here if we ARE using
- -fvtable_thunks. (Otherwise, look under
- TYPE_CODE_STRUCT.) */
- CORE_ADDR addr
- = extract_typed_address (valaddr + embedded_offset, type);
-
- print_function_pointer_address (gdbarch, addr, stream,
- options->addressprint);
- break;
- }
- unresolved_elttype = TYPE_TARGET_TYPE (type);
- elttype = check_typedef (unresolved_elttype);
- {
- addr = unpack_pointer (type, valaddr + embedded_offset);
- print_unpacked_pointer:
+ if (msymbol.minsym != NULL)
+ wsym = lookup_symbol (MSYMBOL_LINKAGE_NAME(msymbol.minsym), block,
+ VAR_DOMAIN, &is_this_fld).symbol;
- if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
+ if (wsym)
{
- /* Try to print what function it points to. */
- print_function_pointer_address (gdbarch, addr, stream,
- options->addressprint);
- /* Return value is irrelevant except for string
- pointers. */
- return (0);
+ wtype = SYMBOL_TYPE (wsym);
}
-
- if (options->addressprint)
- fputs_filtered (paddress (gdbarch, addr), stream);
-
- /* For a pointer to a textual type, also print the string
- pointed to, unless pointer is null. */
-
- if (c_textual_element_type (unresolved_elttype,
- options->format)
- && addr != 0)
+ else
{
- i = val_print_string (unresolved_elttype, NULL,
- addr, -1,
- stream, options);
+ wtype = unresolved_elttype;
}
- else if (cp_is_vtbl_member (type))
+ vt_val = value_at (wtype, vt_address);
+ common_val_print (vt_val, stream, recurse + 1, options,
+ current_language);
+ if (options->prettyformat)
{
- /* Print vtbl's nicely. */
- CORE_ADDR vt_address = unpack_pointer (type,
- valaddr
- + embedded_offset);
-
- struct minimal_symbol *msymbol =
- lookup_minimal_symbol_by_pc (vt_address);
- if ((msymbol != NULL)
- && (vt_address == SYMBOL_VALUE_ADDRESS (msymbol)))
- {
- fputs_filtered (" <", stream);
- fputs_filtered (SYMBOL_PRINT_NAME (msymbol), stream);
- fputs_filtered (">", stream);
- }
- if (vt_address && options->vtblprint)
- {
- struct value *vt_val;
- struct symbol *wsym = (struct symbol *) NULL;
- struct type *wtype;
- struct block *block = (struct block *) NULL;
- int is_this_fld;
-
- if (msymbol != NULL)
- wsym = lookup_symbol (SYMBOL_LINKAGE_NAME (msymbol),
- block, VAR_DOMAIN,
- &is_this_fld);
-
- if (wsym)
- {
- wtype = SYMBOL_TYPE (wsym);
- }
- else
- {
- wtype = unresolved_elttype;
- }
- vt_val = value_at (wtype, vt_address);
- common_val_print (vt_val, stream, recurse + 1,
- options, current_language);
- if (options->pretty)
- {
- fprintf_filtered (stream, "\n");
- print_spaces_filtered (2 + 2 * recurse, stream);
- }
- }
+ fprintf_filtered (stream, "\n");
+ print_spaces_filtered (2 + 2 * recurse, stream);
}
-
- /* Return number of characters printed, including the
- terminating '\0' if we reached the end. val_print_string
- takes care including the terminating '\0' if
- necessary. */
- return i;
}
- 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);
+/* c_val_print helper for TYPE_CODE_ARRAY. */
- fprintf_filtered (stream, "@");
- fputs_filtered (paddress (gdbarch, addr), stream);
- if (options->deref_ref)
- fputs_filtered (": ", stream);
+static void
+c_val_print_array (struct type *type, const gdb_byte *valaddr,
+ int embedded_offset, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ const struct value *original_value,
+ const struct value_print_options *options)
+{
+ struct type *unresolved_elttype = TYPE_TARGET_TYPE (type);
+ struct type *elttype = check_typedef (unresolved_elttype);
+ struct gdbarch *arch = get_type_arch (type);
+ int unit_size = gdbarch_addressable_memory_unit_size (arch);
+
+ if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0)
+ {
+ LONGEST low_bound, high_bound;
+ int eltlen, len;
+ struct gdbarch *gdbarch = get_type_arch (type);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ unsigned int i = 0; /* Number of characters printed. */
+
+ if (!get_array_bounds (type, &low_bound, &high_bound))
+ error (_("Could not determine the array high bound"));
+
+ eltlen = TYPE_LENGTH (elttype);
+ len = high_bound - low_bound + 1;
+ if (options->prettyformat_arrays)
+ {
+ print_spaces_filtered (2 + 2 * recurse, stream);
}
- /* De-reference the reference. */
- if (options->deref_ref)
+
+ /* Print arrays of textual chars with a string syntax, as
+ long as the entire array is valid. */
+ if (c_textual_element_type (unresolved_elttype,
+ options->format)
+ && value_bytes_available (original_value, embedded_offset,
+ TYPE_LENGTH (type))
+ && !value_bits_any_optimized_out (original_value,
+ TARGET_CHAR_BIT * embedded_offset,
+ TARGET_CHAR_BIT * TYPE_LENGTH (type)))
{
- if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
+ int force_ellipses = 0;
+
+ /* If requested, look for the first null char and only
+ print elements up to it. */
+ if (options->stop_print_at_null)
{
- struct value *deref_val =
- value_at
- (TYPE_TARGET_TYPE (type),
- unpack_pointer (type, valaddr + embedded_offset));
+ unsigned int temp_len;
+
+ for (temp_len = 0;
+ (temp_len < len
+ && temp_len < options->print_max
+ && extract_unsigned_integer (valaddr
+ + embedded_offset * unit_size
+ + temp_len * eltlen,
+ eltlen, byte_order) != 0);
+ ++temp_len)
+ ;
+
+ /* Force LA_PRINT_STRING to print ellipses if
+ we've printed the maximum characters and
+ the next character is not \000. */
+ if (temp_len == options->print_max && temp_len < len)
+ {
+ ULONGEST val
+ = extract_unsigned_integer (valaddr
+ + embedded_offset * unit_size
+ + temp_len * eltlen,
+ eltlen, byte_order);
+ if (val != 0)
+ force_ellipses = 1;
+ }
- common_val_print (deref_val, stream, recurse, options,
- current_language);
+ len = temp_len;
}
- else
- fputs_filtered ("???", stream);
- }
- break;
- case TYPE_CODE_UNION:
- if (recurse && !options->unionprint)
- {
- fprintf_filtered (stream, "{...}");
- break;
- }
- /* Fall through. */
- case TYPE_CODE_STRUCT:
- /*FIXME: Abstract this away. */
- if (options->vtblprint && cp_is_vtbl_ptr_type (type))
- {
- /* Print the unmangled name if desired. */
- /* Print vtable entry - we only get here if NOT using
- -fvtable_thunks. (Otherwise, look under
- TYPE_CODE_PTR.) */
- int offset = (embedded_offset
- + TYPE_FIELD_BITPOS (type,
- VTBL_FNADDR_OFFSET) / 8);
- struct type *field_type = TYPE_FIELD_TYPE (type,
- VTBL_FNADDR_OFFSET);
- CORE_ADDR addr
- = extract_typed_address (valaddr + offset, field_type);
-
- print_function_pointer_address (gdbarch, addr, stream,
- options->addressprint);
+ LA_PRINT_STRING (stream, unresolved_elttype,
+ valaddr + embedded_offset * unit_size, len,
+ NULL, force_ellipses, options);
+ i = len;
}
else
- cp_print_value_fields_rtti (type, valaddr,
- embedded_offset, address,
- stream, recurse,
- original_value, options,
- NULL, 0);
- break;
-
- case TYPE_CODE_ENUM:
- if (options->format)
{
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, 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))
+ fprintf_filtered (stream, "{");
+ /* If this is a virtual function table, print the 0th
+ entry specially, and the rest of the members
+ normally. */
+ if (cp_is_vtbl_ptr_type (elttype))
{
- break;
+ i = 1;
+ fprintf_filtered (stream, _("%d vtable entries"),
+ len - 1);
}
+ else
+ {
+ i = 0;
+ }
+ val_print_array_elements (type, valaddr, embedded_offset,
+ address, stream,
+ recurse, original_value, options, i);
+ fprintf_filtered (stream, "}");
}
- if (i < len)
- {
- fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
- }
- else
- {
- print_longest (stream, 'd', 0, val);
- }
- break;
+ }
+ else
+ {
+ /* Array of unspecified length: treat like pointer to first elt. */
+ print_unpacked_pointer (type, elttype, unresolved_elttype, valaddr,
+ embedded_offset, address + embedded_offset,
+ stream, recurse, options);
+ }
+}
- case TYPE_CODE_FLAGS:
- if (options->format)
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, options, 0, stream);
- else
- val_print_type_code_flags (type, valaddr + embedded_offset,
- stream);
- break;
+/* c_val_print helper for TYPE_CODE_PTR. */
- case TYPE_CODE_FUNC:
- case TYPE_CODE_METHOD:
- if (options->format)
- {
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, 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 (gdbarch, address, stream, demangle);
- break;
+static void
+c_val_print_ptr (struct type *type, const gdb_byte *valaddr,
+ int embedded_offset, struct ui_file *stream, int recurse,
+ const struct value *original_value,
+ const struct value_print_options *options)
+{
+ struct gdbarch *arch = get_type_arch (type);
+ int unit_size = gdbarch_addressable_memory_unit_size (arch);
- 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);
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, &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
- print_longest (stream, 'd', 0, val);
- }
- break;
+ if (options->format && options->format != 's')
+ {
+ val_print_scalar_formatted (type, valaddr, embedded_offset,
+ original_value, options, 0, stream);
+ }
+ else if (options->vtblprint && cp_is_vtbl_ptr_type (type))
+ {
+ /* Print the unmangled name if desired. */
+ /* Print vtable entry - we only get here if we ARE using
+ -fvtable_thunks. (Otherwise, look under
+ TYPE_CODE_STRUCT.) */
+ CORE_ADDR addr
+ = extract_typed_address (valaddr + embedded_offset, type);
+ struct gdbarch *gdbarch = get_type_arch (type);
+
+ print_function_pointer_address (options, gdbarch, addr, stream);
+ }
+ else
+ {
+ struct type *unresolved_elttype = TYPE_TARGET_TYPE (type);
+ struct type *elttype = check_typedef (unresolved_elttype);
+ CORE_ADDR addr = unpack_pointer (type,
+ valaddr + embedded_offset * unit_size);
- case TYPE_CODE_RANGE:
- /* 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 */
+ print_unpacked_pointer (type, elttype, unresolved_elttype, valaddr,
+ embedded_offset, addr, stream, recurse, options);
+ }
+}
- case TYPE_CODE_INT:
- if (options->format || options->output_format)
- {
- struct value_print_options opts = *options;
+/* c_val_print helper for TYPE_CODE_STRUCT. */
- opts.format = (options->format ? options->format
- : options->output_format);
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, &opts, 0, stream);
- }
- else
- {
- val_print_type_code_int (type, valaddr + embedded_offset,
- stream);
- /* C and C++ has no single byte int type, char is used
- instead. Since we don't know whether the value is really
- intended to be used as an integer or a character, print
- the character equivalent as well. */
- if (c_textual_element_type (unresolved_type, options->format))
- {
- fputs_filtered (" ", stream);
- LA_PRINT_CHAR (unpack_long (type, valaddr + embedded_offset),
- unresolved_type, stream);
- }
- }
- break;
+static void
+c_val_print_struct (struct type *type, const gdb_byte *valaddr,
+ int embedded_offset, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ const struct value *original_value,
+ const struct value_print_options *options)
+{
+ if (options->vtblprint && cp_is_vtbl_ptr_type (type))
+ {
+ /* Print the unmangled name if desired. */
+ /* Print vtable entry - we only get here if NOT using
+ -fvtable_thunks. (Otherwise, look under
+ TYPE_CODE_PTR.) */
+ struct gdbarch *gdbarch = get_type_arch (type);
+ int offset = (embedded_offset
+ + TYPE_FIELD_BITPOS (type,
+ VTBL_FNADDR_OFFSET) / 8);
+ struct type *field_type = TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET);
+ CORE_ADDR addr = extract_typed_address (valaddr + offset, field_type);
+
+ print_function_pointer_address (options, gdbarch, addr, stream);
+ }
+ else
+ cp_print_value_fields_rtti (type, valaddr,
+ embedded_offset, address,
+ stream, recurse,
+ original_value, options,
+ NULL, 0);
+}
- 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);
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, &opts, 0, stream);
- }
- else
+/* c_val_print helper for TYPE_CODE_UNION. */
+
+static void
+c_val_print_union (struct type *type, const gdb_byte *valaddr,
+ int embedded_offset, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ const struct value *original_value,
+ const struct value_print_options *options)
+{
+ if (recurse && !options->unionprint)
+ {
+ fprintf_filtered (stream, "{...}");
+ }
+ else
+ {
+ c_val_print_struct (type, valaddr, embedded_offset, address, stream,
+ recurse, original_value, options);
+ }
+}
+
+/* c_val_print helper for TYPE_CODE_INT. */
+
+static void
+c_val_print_int (struct type *type, struct type *unresolved_type,
+ const gdb_byte *valaddr, int embedded_offset,
+ struct ui_file *stream, const struct value *original_value,
+ const struct value_print_options *options)
+{
+ struct gdbarch *arch = get_type_arch (type);
+ int unit_size = gdbarch_addressable_memory_unit_size (arch);
+
+ if (options->format || options->output_format)
+ {
+ struct value_print_options opts = *options;
+
+ opts.format = (options->format ? options->format
+ : options->output_format);
+ val_print_scalar_formatted (type, valaddr, embedded_offset,
+ original_value, &opts, 0, stream);
+ }
+ else
+ {
+ val_print_type_code_int (type, valaddr + embedded_offset * unit_size,
+ stream);
+ /* C and C++ has no single byte int type, char is used
+ instead. Since we don't know whether the value is really
+ intended to be used as an integer or a character, print
+ the character equivalent as well. */
+ if (c_textual_element_type (unresolved_type, options->format))
{
- 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 (val, unresolved_type, stream);
+ LA_PRINT_CHAR (unpack_long (type,
+ valaddr + embedded_offset * unit_size),
+ unresolved_type, stream);
}
+ }
+}
+
+/* c_val_print helper for TYPE_CODE_MEMBERPTR. */
+
+static void
+c_val_print_memberptr (struct type *type, const gdb_byte *valaddr,
+ int embedded_offset, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ const struct value *original_value,
+ const struct value_print_options *options)
+{
+ if (!options->format)
+ {
+ cp_print_class_member (valaddr + embedded_offset, type, stream, "&");
+ }
+ else
+ {
+ generic_val_print (type, valaddr, embedded_offset, address, stream,
+ recurse, original_value, options, &c_decorations);
+ }
+}
+
+/* See val_print for a description of the various parameters of this
+ function; they are identical. */
+
+void
+c_val_print (struct type *type, const gdb_byte *valaddr,
+ int embedded_offset, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ const struct value *original_value,
+ const struct value_print_options *options)
+{
+ struct type *unresolved_type = type;
+
+ type = check_typedef (type);
+ switch (TYPE_CODE (type))
+ {
+ case TYPE_CODE_ARRAY:
+ c_val_print_array (type, valaddr, embedded_offset, address, stream,
+ recurse, original_value, options);
break;
- case TYPE_CODE_FLT:
- if (options->format)
- {
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, options, 0, stream);
- }
- else
- {
- print_floating (valaddr + embedded_offset, type, stream);
- }
+ case TYPE_CODE_METHODPTR:
+ cplus_print_method_ptr (valaddr + embedded_offset, type, stream);
break;
- case TYPE_CODE_DECFLOAT:
- if (options->format)
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, options, 0, stream);
- else
- print_decimal_floating (valaddr + embedded_offset,
- type, stream);
+ case TYPE_CODE_PTR:
+ c_val_print_ptr (type, valaddr, embedded_offset, stream, recurse,
+ original_value, options);
break;
- case TYPE_CODE_VOID:
- fprintf_filtered (stream, "void");
+ case TYPE_CODE_UNION:
+ c_val_print_union (type, valaddr, embedded_offset, address, stream,
+ recurse, original_value, options);
break;
- case TYPE_CODE_ERROR:
- fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (type));
+ case TYPE_CODE_STRUCT:
+ c_val_print_struct (type, valaddr, embedded_offset, address, stream,
+ recurse, original_value, options);
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>"));
+ case TYPE_CODE_INT:
+ c_val_print_int (type, unresolved_type, valaddr, embedded_offset, stream,
+ original_value, options);
break;
- case TYPE_CODE_COMPLEX:
- if (options->format)
- val_print_scalar_formatted (TYPE_TARGET_TYPE (type),
- valaddr, embedded_offset,
- original_value, options, 0, stream);
- else
- print_floating (valaddr + embedded_offset,
- TYPE_TARGET_TYPE (type),
- stream);
- fprintf_filtered (stream, " + ");
- if (options->format)
- val_print_scalar_formatted (TYPE_TARGET_TYPE (type),
- valaddr,
- embedded_offset
- + TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
- original_value,
- options, 0, stream);
- else
- print_floating (valaddr + embedded_offset
- + TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
- TYPE_TARGET_TYPE (type),
- stream);
- fprintf_filtered (stream, " * I");
+ case TYPE_CODE_MEMBERPTR:
+ c_val_print_memberptr (type, valaddr, embedded_offset, address, stream,
+ recurse, original_value, options);
break;
+ case TYPE_CODE_REF:
+ case TYPE_CODE_ENUM:
+ case TYPE_CODE_FLAGS:
+ case TYPE_CODE_FUNC:
+ case TYPE_CODE_METHOD:
+ case TYPE_CODE_BOOL:
+ case TYPE_CODE_RANGE:
+ case TYPE_CODE_FLT:
+ case TYPE_CODE_DECFLOAT:
+ case TYPE_CODE_VOID:
+ case TYPE_CODE_ERROR:
+ case TYPE_CODE_UNDEF:
+ case TYPE_CODE_COMPLEX:
+ case TYPE_CODE_CHAR:
default:
- error (_("Invalid C/C++ type code %d in symbol table."),
- TYPE_CODE (type));
+ generic_val_print (type, valaddr, embedded_offset, address,
+ stream, recurse, original_value, options,
+ &c_decorations);
+ break;
}
gdb_flush (stream);
- return (0);
}
\f
-int
+void
c_value_print (struct value *val, struct ui_file *stream,
const struct value_print_options *options)
{
/* Print nothing. */
}
else if (options->objectprint
- && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CLASS))
+ && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_STRUCT))
{
+ int is_ref = TYPE_CODE (type) == TYPE_CODE_REF;
+
+ if (is_ref)
+ val = value_addr (val);
- if (TYPE_CODE(type) == TYPE_CODE_REF)
- {
- /* Copy value, change to pointer, so we don't get an
- error about a non-pointer type in
- value_rtti_target_type. */
- struct value *temparg;
- temparg=value_copy(val);
- deprecated_set_value_type
- (temparg, lookup_pointer_type (TYPE_TARGET_TYPE (type)));
- val = temparg;
- }
/* Pointer to class, check real type of object. */
fprintf_filtered (stream, "(");
- real_type = value_rtti_target_type (val, &full,
- &top, &using_enc);
- if (real_type)
- {
- /* RTTI entry found. */
- if (TYPE_CODE (type) == TYPE_CODE_PTR)
- {
- /* Create a pointer type pointing to the real
- type. */
- type = lookup_pointer_type (real_type);
- }
- else
- {
- /* Create a reference type referencing the real
- type. */
- type = lookup_reference_type (real_type);
- }
- /* JYG: Need to adjust pointer value. */
- val = value_from_pointer (type, value_as_address (val) - top);
-
- /* Note: When we look up RTTI entries, we don't get any
- information on const or volatile attributes. */
- }
+
+ if (value_entirely_available (val))
+ {
+ real_type = value_rtti_indirect_type (val, &full, &top,
+ &using_enc);
+ if (real_type)
+ {
+ /* RTTI entry found. */
+ type = real_type;
+
+ /* Need to adjust pointer value. */
+ val = value_from_pointer (real_type,
+ value_as_address (val) - top);
+
+ if (is_ref)
+ {
+ val = value_ref (value_ind (val));
+ type = value_type (val);
+ }
+
+ /* Note: When we look up RTTI entries, we don't get
+ any information on const or volatile
+ attributes. */
+ }
+ }
type_print (type, "", stream, -1);
fprintf_filtered (stream, ") ");
val_type = type;
if (!value_initialized (val))
fprintf_filtered (stream, " [uninitialized] ");
- if (options->objectprint && (TYPE_CODE (type) == TYPE_CODE_CLASS))
+ if (options->objectprint && (TYPE_CODE (type) == TYPE_CODE_STRUCT))
{
/* Attempt to determine real type of object. */
real_type = value_rtti_type (val, &full, &top, &using_enc);
full ? "" : _(" [incomplete object]"));
/* Print out object: enclosing type is same as real_type if
full. */
- return val_print (value_enclosing_type (val),
- value_contents_for_printing (val), 0,
- value_address (val), stream, 0,
- val, &opts, current_language);
+ val_print (value_enclosing_type (val),
+ value_contents_for_printing (val), 0,
+ value_address (val), stream, 0,
+ val, &opts, current_language);
+ return;
/* Note: When we look up RTTI entries, we don't get any
information on const or volatile attributes. */
}
/* No RTTI information, so let's do our best. */
fprintf_filtered (stream, "(%s ?) ",
TYPE_NAME (value_enclosing_type (val)));
- return val_print (value_enclosing_type (val),
- value_contents_for_printing (val), 0,
- value_address (val), stream, 0,
- val, &opts, current_language);
+ val_print (value_enclosing_type (val),
+ value_contents_for_printing (val), 0,
+ value_address (val), stream, 0,
+ val, &opts, current_language);
+ return;
}
/* Otherwise, we end up at the return outside this "if". */
}
- return val_print (val_type, value_contents_for_printing (val),
- value_embedded_offset (val),
- value_address (val),
- stream, 0,
- val, &opts, current_language);
+ val_print (val_type, value_contents_for_printing (val),
+ value_embedded_offset (val),
+ value_address (val),
+ stream, 0,
+ val, &opts, current_language);
}