/* Language independent support for printing types for GDB, the GNU debugger.
- Copyright (C) 1986-2018 Free Software Foundation, Inc.
+ Copyright (C) 1986-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "cli/cli-utils.h"
#include "extension.h"
#include "completer.h"
+#include "cli/cli-style.h"
const struct type_print_options type_print_raw_options =
{
\f
+/* See typeprint.h. */
+
+const int print_offset_data::indentation = 23;
+
+
+/* See typeprint.h. */
+
+void
+print_offset_data::maybe_print_hole (struct ui_file *stream,
+ unsigned int bitpos,
+ const char *for_what)
+{
+ /* We check for END_BITPOS > 0 because there is a specific
+ scenario when END_BITPOS can be zero and BITPOS can be >
+ 0: when we are dealing with a struct/class with a virtual method.
+ Because of the vtable, the first field of the struct/class will
+ have an offset of sizeof (void *) (the size of the vtable). If
+ we do not check for END_BITPOS > 0 here, GDB will report
+ a hole before the first field, which is not accurate. */
+ if (end_bitpos > 0 && end_bitpos < bitpos)
+ {
+ /* If END_BITPOS is smaller than the current type's
+ bitpos, it means there's a hole in the struct, so we report
+ it here. */
+ unsigned int hole = bitpos - end_bitpos;
+ unsigned int hole_byte = hole / TARGET_CHAR_BIT;
+ unsigned int hole_bit = hole % TARGET_CHAR_BIT;
+
+ if (hole_bit > 0)
+ fprintf_filtered (stream, "/* XXX %2u-bit %s */\n", hole_bit,
+ for_what);
+
+ if (hole_byte > 0)
+ fprintf_filtered (stream, "/* XXX %2u-byte %s */\n", hole_byte,
+ for_what);
+ }
+}
+
+/* See typeprint.h. */
+
+void
+print_offset_data::update (struct type *type, unsigned int field_idx,
+ struct ui_file *stream)
+{
+ if (field_is_static (&TYPE_FIELD (type, field_idx)))
+ {
+ print_spaces_filtered (indentation, stream);
+ return;
+ }
+
+ struct type *ftype = check_typedef (TYPE_FIELD_TYPE (type, field_idx));
+ if (TYPE_CODE (type) == TYPE_CODE_UNION)
+ {
+ /* Since union fields don't have the concept of offsets, we just
+ print their sizes. */
+ fprintf_filtered (stream, "/* %4s */",
+ pulongest (TYPE_LENGTH (ftype)));
+ return;
+ }
+
+ unsigned int bitpos = TYPE_FIELD_BITPOS (type, field_idx);
+ unsigned int fieldsize_byte = TYPE_LENGTH (ftype);
+ unsigned int fieldsize_bit = fieldsize_byte * TARGET_CHAR_BIT;
+
+ maybe_print_hole (stream, bitpos, "hole");
+
+ if (TYPE_FIELD_PACKED (type, field_idx)
+ || offset_bitpos % TARGET_CHAR_BIT != 0)
+ {
+ /* We're dealing with a bitfield. Print the bit offset. */
+ fieldsize_bit = TYPE_FIELD_BITSIZE (type, field_idx);
+
+ unsigned real_bitpos = bitpos + offset_bitpos;
+
+ fprintf_filtered (stream, "/* %4u:%2u", real_bitpos / TARGET_CHAR_BIT,
+ real_bitpos % TARGET_CHAR_BIT);
+ }
+ else
+ {
+ /* The position of the field, relative to the beginning of the
+ struct. */
+ fprintf_filtered (stream, "/* %4u",
+ (bitpos + offset_bitpos) / TARGET_CHAR_BIT);
+
+ fprintf_filtered (stream, " ");
+ }
+
+ fprintf_filtered (stream, " | %4u */", fieldsize_byte);
+
+ end_bitpos = bitpos + fieldsize_bit;
+}
+
+/* See typeprint.h. */
+
+void
+print_offset_data::finish (struct type *type, int level,
+ struct ui_file *stream)
+{
+ unsigned int bitpos = TYPE_LENGTH (type) * TARGET_CHAR_BIT;
+ maybe_print_hole (stream, bitpos, "padding");
+
+ fputs_filtered ("\n", stream);
+ print_spaces_filtered (level + 4 + print_offset_data::indentation, stream);
+ fprintf_filtered (stream, "/* total size (bytes): %4s */\n",
+ pulongest (TYPE_LENGTH (type)));
+}
+
+\f
+
/* A hash function for a typedef_field. */
static hashval_t
continue;
tf = XOBNEW (&m_storage, struct decl_field);
- tf->name = SYMBOL_LINKAGE_NAME (TYPE_TEMPLATE_ARGUMENT (t, i));
+ tf->name = TYPE_TEMPLATE_ARGUMENT (t, i)->linkage_name ();
tf->type = SYMBOL_TYPE (TYPE_TEMPLATE_ARGUMENT (t, i));
slot = htab_find_slot (m_table, tf, INSERT);
if (applied != NULL)
{
- new_tf->name
- = (const char *) obstack_copy0 (&flags->global_typedefs->m_storage,
- applied, strlen (applied));
+ new_tf->name = obstack_strdup (&flags->global_typedefs->m_storage,
+ applied);
xfree (applied);
}
std::string
type_to_string (struct type *type)
{
- TRY
+ try
{
string_file stb;
type_print (type, "", &stb, -1);
return std::move (stb.string ());
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
}
- END_CATCH
return {};
}
void
type_print_unknown_return_type (struct ui_file *stream)
{
- fprintf_filtered (stream, _("<unknown return type>"));
+ fprintf_styled (stream, metadata_style.style (),
+ _("<unknown return type>"));
}
/* See typeprint.h. */
feature. */
if (show > 0
&& (current_language->la_language == language_c
- || current_language->la_language == language_cplus))
+ || current_language->la_language == language_cplus
+ || current_language->la_language == language_rust))
{
flags.print_offsets = 1;
flags.print_typedefs = 0;
default:
error (_("Invalid type code in symbol table."));
}
- gdb_flush (stream);
}
/* Dump details of a type specified either directly or indirectly.
cmd_show_list (showprinttypelist, from_tty, "");
}
-static int print_methods = 1;
+static bool print_methods = true;
static void
set_print_type_methods (const char *args,
value);
}
-static int print_typedefs = 1;
+static bool print_typedefs = true;
static void
set_print_type_typedefs (const char *args,
/M print methods defined in a class\n\
/t do not print typedefs defined in a class\n\
/T print typedefs defined in a class\n\
- /o print offsets and sizes of fields in a struct (like pahole)\n"));
+ /o print offsets and sizes of fields in a struct (like pahole)"));
set_cmd_completer (c, expression_completer);
c = add_com ("whatis", class_vars, whatis_command,
&showprinttypelist, "show print type ", 0, &showprintlist);
add_prefix_cmd ("type", no_class, set_print_type,
_("Generic command for setting how types print."),
- &setprinttypelist, "show print type ", 0, &setprintlist);
+ &setprinttypelist, "set print type ", 0, &setprintlist);
add_setshow_boolean_cmd ("methods", no_class, &print_methods,
_("\
void
val_print_not_allocated (struct ui_file *stream)
{
- fprintf_filtered (stream, _("<not allocated>"));
+ fprintf_styled (stream, metadata_style.style (), _("<not allocated>"));
}
/* Print <not associated> status to stream STREAM. */
void
val_print_not_associated (struct ui_file *stream)
{
- fprintf_filtered (stream, _("<not associated>"));
+ fprintf_styled (stream, metadata_style.style (), _("<not associated>"));
}
projects / deliverable / binutils-gdb.git / blobdiff