/* Support for printing C and C++ types for GDB, the GNU debugger.
- Copyright (C) 1986-2017 Free Software Foundation, Inc.
+ Copyright (C) 1986-2018 Free Software Foundation, Inc.
This file is part of GDB.
#include "cp-abi.h"
#include "cp-support.h"
+/* When printing the offsets of a struct and its fields (i.e., 'ptype
+ /o'; type_print_options::print_offsets), we use this many
+ characters when printing the offset information at the beginning of
+ the line. This is needed in order to generate the correct amount
+ of whitespaces when no offset info should be printed for a certain
+ field. */
+#define OFFSET_SPC_LEN 23
+
/* A list of access specifiers used for printing. */
enum access_specifier
static void c_type_print_varspec_prefix (struct type *,
struct ui_file *,
int, int, int,
- const struct type_print_options *);
+ const struct type_print_options *,
+ struct print_offset_data *);
/* Print "const", "volatile", or address space modifiers. */
static void c_type_print_modifier (struct type *,
struct ui_file *,
int, int);
+
+static void c_type_print_base_1 (struct type *type, struct ui_file *stream,
+ int show, int level,
+ const struct type_print_options *flags,
+ struct print_offset_data *podata);
\f
/* A callback function for cp_canonicalize_string_full that uses
\f
-/* LEVEL is the depth to indent lines by. */
+/* Helper function for c_print_type. */
-void
-c_print_type (struct type *type,
- const char *varstring,
- struct ui_file *stream,
- int show, int level,
- const struct type_print_options *flags)
+static void
+c_print_type_1 (struct type *type,
+ const char *varstring,
+ struct ui_file *stream,
+ int show, int level,
+ const struct type_print_options *flags,
+ struct print_offset_data *podata)
{
enum type_code code;
int demangled_args;
}
else
{
- c_type_print_base (type, stream, show, level, flags);
+ c_type_print_base_1 (type, stream, show, level, flags, podata);
code = TYPE_CODE (type);
if ((varstring != NULL && *varstring != '\0')
/* Need a space if going to print stars or brackets;
fputs_filtered (" ", stream);
need_post_space = (varstring != NULL && strcmp (varstring, "") != 0);
c_type_print_varspec_prefix (type, stream, show, 0, need_post_space,
- flags);
+ flags, podata);
}
if (varstring != NULL)
}
}
+/* LEVEL is the depth to indent lines by. */
+
+void
+c_print_type (struct type *type,
+ const char *varstring,
+ struct ui_file *stream,
+ int show, int level,
+ const struct type_print_options *flags)
+{
+ struct print_offset_data podata;
+
+ c_print_type_1 (type, varstring, stream, show, level, flags, &podata);
+}
+
/* Print a typedef using C syntax. TYPE is the underlying type.
NEW_SYMBOL is the symbol naming the type. STREAM is the stream on
which to print. */
struct ui_file *stream,
int show, int passed_a_ptr,
int need_post_space,
- const struct type_print_options *flags)
+ const struct type_print_options *flags,
+ struct print_offset_data *podata)
{
const char *name;
{
case TYPE_CODE_PTR:
c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
- stream, show, 1, 1, flags);
+ stream, show, 1, 1, flags, podata);
fprintf_filtered (stream, "*");
c_type_print_modifier (type, stream, 1, need_post_space);
break;
case TYPE_CODE_MEMBERPTR:
c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
- stream, show, 0, 0, flags);
+ stream, show, 0, 0, flags, podata);
name = type_name_no_tag (TYPE_SELF_TYPE (type));
if (name)
print_name_maybe_canonical (name, flags, stream);
else
- c_type_print_base (TYPE_SELF_TYPE (type),
- stream, -1, passed_a_ptr, flags);
+ c_type_print_base_1 (TYPE_SELF_TYPE (type),
+ stream, -1, passed_a_ptr, flags, podata);
fprintf_filtered (stream, "::*");
break;
case TYPE_CODE_METHODPTR:
c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
- stream, show, 0, 0, flags);
+ stream, show, 0, 0, flags, podata);
fprintf_filtered (stream, "(");
name = type_name_no_tag (TYPE_SELF_TYPE (type));
if (name)
print_name_maybe_canonical (name, flags, stream);
else
- c_type_print_base (TYPE_SELF_TYPE (type),
- stream, -1, passed_a_ptr, flags);
+ c_type_print_base_1 (TYPE_SELF_TYPE (type),
+ stream, -1, passed_a_ptr, flags, podata);
fprintf_filtered (stream, "::*");
break;
case TYPE_CODE_REF:
case TYPE_CODE_RVALUE_REF:
c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
- stream, show, 1, 0, flags);
+ stream, show, 1, 0, flags, podata);
fprintf_filtered (stream, TYPE_CODE(type) == TYPE_CODE_REF ? "&" : "&&");
c_type_print_modifier (type, stream, 1, need_post_space);
break;
case TYPE_CODE_METHOD:
case TYPE_CODE_FUNC:
c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
- stream, show, 0, 0, flags);
+ stream, show, 0, 0, flags, podata);
if (passed_a_ptr)
fprintf_filtered (stream, "(");
break;
case TYPE_CODE_ARRAY:
c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
- stream, show, 0, 0, flags);
+ stream, show, 0, 0, flags, podata);
if (passed_a_ptr)
fprintf_filtered (stream, "(");
break;
case TYPE_CODE_TYPEDEF:
c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
- stream, show, passed_a_ptr, 0, flags);
+ stream, show, passed_a_ptr, 0, flags,
+ podata);
break;
case TYPE_CODE_UNDEF:
fputs_filtered (_("] "), stream);
}
+/* Use 'print_spaces_filtered', but take into consideration the
+ type_print_options FLAGS in order to determine how many whitespaces
+ will be printed. */
+
+static void
+print_spaces_filtered_with_print_options
+ (int level, struct ui_file *stream, const struct type_print_options *flags)
+{
+ if (!flags->print_offsets)
+ print_spaces_filtered (level, stream);
+ else
+ print_spaces_filtered (level + OFFSET_SPC_LEN, stream);
+}
+
/* Output an access specifier to STREAM, if needed. LAST_ACCESS is the
last access specifier output (typically returned by this function). */
static enum access_specifier
output_access_specifier (struct ui_file *stream,
enum access_specifier last_access,
- int level, bool is_protected, bool is_private)
+ int level, bool is_protected, bool is_private,
+ const struct type_print_options *flags)
{
if (is_protected)
{
if (last_access != s_protected)
{
last_access = s_protected;
- fprintfi_filtered (level + 2, stream,
- "protected:\n");
+ print_spaces_filtered_with_print_options (level + 2, stream, flags);
+ fprintf_filtered (stream, "protected:\n");
}
}
else if (is_private)
if (last_access != s_private)
{
last_access = s_private;
- fprintfi_filtered (level + 2, stream,
- "private:\n");
+ print_spaces_filtered_with_print_options (level + 2, stream, flags);
+ fprintf_filtered (stream, "private:\n");
}
}
else
if (last_access != s_public)
{
last_access = s_public;
- fprintfi_filtered (level + 2, stream,
- "public:\n");
+ print_spaces_filtered_with_print_options (level + 2, stream, flags);
+ fprintf_filtered (stream, "public:\n");
}
}
return last_access;
}
+/* Print information about field at index FIELD_IDX of the union type
+ TYPE. Since union fields don't have the concept of offsets, we
+ just print their sizes.
+
+ The output is strongly based on pahole(1). */
+
+static void
+c_print_type_union_field_offset (struct type *type, unsigned int field_idx,
+ struct ui_file *stream)
+{
+ struct type *ftype = check_typedef (TYPE_FIELD_TYPE (type, field_idx));
+
+ fprintf_filtered (stream, "/* %4u */", TYPE_LENGTH (ftype));
+}
+
+/* Print information about field at index FIELD_IDX of the struct type
+ TYPE.
+
+ PODATA->END_BITPOS is the one-past-the-end bit position of the
+ previous field (where we expect this field to be if there is no
+ hole). At the end, ENDPOS is updated to the one-past-the-end bit
+ position of the current field.
+
+ PODATA->OFFSET_BITPOS is the offset value we carry over when we are
+ printing a struct that is inside another struct; this is useful so
+ that the offset is constantly incremented (if we didn't carry it
+ over, the offset would be reset to zero when printing the inner
+ struct).
+
+ The output is strongly based on pahole(1). */
+
+static void
+c_print_type_struct_field_offset (struct type *type, unsigned int field_idx,
+ struct ui_file *stream,
+ struct print_offset_data *podata)
+{
+ struct type *ftype = check_typedef (TYPE_FIELD_TYPE (type, field_idx));
+ 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;
+
+ /* We check for PODATA->END_BITPOS > 0 because there is a specific
+ scenario when PODATA->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 PODATA->END_BITPOS > 0 here, GDB will report
+ a hole before the first field, which is not accurate. */
+ if (podata->end_bitpos > 0 && podata->end_bitpos < bitpos)
+ {
+ /* If PODATA->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 - podata->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 hole */\n", hole_bit);
+
+ if (hole_byte > 0)
+ fprintf_filtered (stream, "/* XXX %2u-byte hole */\n", hole_byte);
+ }
+
+ if (TYPE_FIELD_PACKED (type, field_idx))
+ {
+ /* We're dealing with a bitfield. Print how many bits are left
+ to be used. */
+ unsigned int bitsize = TYPE_FIELD_BITSIZE (type, field_idx);
+ /* The bitpos relative to the beginning of our container
+ field. */
+ unsigned int relative_bitpos;
+
+ /* The following was copied from
+ value.c:value_primitive_field. */
+ if ((bitpos % fieldsize_bit) + bitsize <= fieldsize_bit)
+ relative_bitpos = bitpos % fieldsize_bit;
+ else
+ relative_bitpos = bitpos % TARGET_CHAR_BIT;
+
+ /* This is the exact offset (in bits) of this bitfield. */
+ unsigned int bit_offset
+ = (bitpos - relative_bitpos) + podata->offset_bitpos;
+
+ /* The position of the field, relative to the beginning of the
+ struct, and how many bits are left to be used in this
+ container. */
+ fprintf_filtered (stream, "/* %4u:%2u", bit_offset / TARGET_CHAR_BIT,
+ fieldsize_bit - (relative_bitpos + bitsize));
+ fieldsize_bit = bitsize;
+ }
+ else
+ {
+ /* The position of the field, relative to the beginning of the
+ struct. */
+ fprintf_filtered (stream, "/* %4u",
+ (bitpos + podata->offset_bitpos) / TARGET_CHAR_BIT);
+
+ fprintf_filtered (stream, " ");
+ }
+
+ fprintf_filtered (stream, " | %4u */", fieldsize_byte);
+
+ podata->end_bitpos = bitpos + fieldsize_bit;
+}
+
+/* Return true if an access label (i.e., "public:", "private:",
+ "protected:") needs to be printed for TYPE. */
+
+static bool
+need_access_label_p (struct type *type)
+{
+ if (TYPE_DECLARED_CLASS (type))
+ {
+ QUIT;
+ for (int i = TYPE_N_BASECLASSES (type); i < TYPE_NFIELDS (type); i++)
+ if (!TYPE_FIELD_PRIVATE (type, i))
+ return true;
+ QUIT;
+ for (int j = 0; j < TYPE_NFN_FIELDS (type); j++)
+ for (int i = 0; i < TYPE_FN_FIELDLIST_LENGTH (type, j); i++)
+ if (!TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type,
+ j), i))
+ return true;
+ QUIT;
+ for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); ++i)
+ if (!TYPE_TYPEDEF_FIELD_PRIVATE (type, i))
+ return true;
+ }
+ else
+ {
+ QUIT;
+ for (int i = TYPE_N_BASECLASSES (type); i < TYPE_NFIELDS (type); i++)
+ if (TYPE_FIELD_PRIVATE (type, i) || TYPE_FIELD_PROTECTED (type, i))
+ return true;
+ QUIT;
+ for (int j = 0; j < TYPE_NFN_FIELDS (type); j++)
+ {
+ QUIT;
+ for (int i = 0; i < TYPE_FN_FIELDLIST_LENGTH (type, j); i++)
+ if (TYPE_FN_FIELD_PROTECTED (TYPE_FN_FIELDLIST1 (type,
+ j), i)
+ || TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type,
+ j),
+ i))
+ return true;
+ }
+ QUIT;
+ for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); ++i)
+ if (TYPE_TYPEDEF_FIELD_PROTECTED (type, i)
+ || TYPE_TYPEDEF_FIELD_PRIVATE (type, i))
+ return true;
+ }
+
+ return false;
+}
+
+/* Helper function that temporarily disables FLAGS->PRINT_OFFSETS,
+ calls 'c_print_type_1', and then reenables FLAGS->PRINT_OFFSETS if
+ applicable. */
+
+static void
+c_print_type_no_offsets (struct type *type,
+ const char *varstring,
+ struct ui_file *stream,
+ int show, int level,
+ struct type_print_options *flags,
+ struct print_offset_data *podata)
+{
+ unsigned int old_po = flags->print_offsets;
+
+ /* Temporarily disable print_offsets, because it would mess with
+ indentation. */
+ flags->print_offsets = 0;
+ c_print_type_1 (type, varstring, stream, show, level, flags, podata);
+ flags->print_offsets = old_po;
+}
+
+/* Helper for 'c_type_print_base' that handles structs and unions.
+ For a description of the arguments, see 'c_type_print_base'. */
+
+static void
+c_type_print_base_struct_union (struct type *type, struct ui_file *stream,
+ int show, int level,
+ const struct type_print_options *flags,
+ struct print_offset_data *podata)
+{
+ struct type_print_options local_flags = *flags;
+ struct type_print_options semi_local_flags = *flags;
+ struct cleanup *local_cleanups = make_cleanup (null_cleanup, NULL);
+
+ local_flags.local_typedefs = NULL;
+ semi_local_flags.local_typedefs = NULL;
+
+ if (!flags->raw)
+ {
+ if (flags->local_typedefs)
+ local_flags.local_typedefs
+ = copy_typedef_hash (flags->local_typedefs);
+ else
+ local_flags.local_typedefs = create_typedef_hash ();
+
+ make_cleanup_free_typedef_hash (local_flags.local_typedefs);
+ }
+
+ c_type_print_modifier (type, stream, 0, 1);
+ if (TYPE_CODE (type) == TYPE_CODE_UNION)
+ fprintf_filtered (stream, "union ");
+ else if (TYPE_DECLARED_CLASS (type))
+ fprintf_filtered (stream, "class ");
+ else
+ fprintf_filtered (stream, "struct ");
+
+ /* Print the tag if it exists. The HP aCC compiler emits a
+ spurious "{unnamed struct}"/"{unnamed union}"/"{unnamed
+ enum}" tag for unnamed struct/union/enum's, which we don't
+ want to print. */
+ if (TYPE_TAG_NAME (type) != NULL
+ && !startswith (TYPE_TAG_NAME (type), "{unnamed"))
+ {
+ /* When printing the tag name, we are still effectively
+ printing in the outer context, hence the use of FLAGS
+ here. */
+ print_name_maybe_canonical (TYPE_TAG_NAME (type), flags, stream);
+ if (show > 0)
+ fputs_filtered (" ", stream);
+ }
+
+ if (show < 0)
+ {
+ /* If we just printed a tag name, no need to print anything
+ else. */
+ if (TYPE_TAG_NAME (type) == NULL)
+ fprintf_filtered (stream, "{...}");
+ }
+ else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
+ {
+ struct type *basetype;
+ int vptr_fieldno;
+
+ c_type_print_template_args (&local_flags, type, stream);
+
+ /* Add in template parameters when printing derivation info. */
+ add_template_parameters (local_flags.local_typedefs, type);
+ cp_type_print_derivation_info (stream, type, &local_flags);
+
+ /* This holds just the global typedefs and the template
+ parameters. */
+ semi_local_flags.local_typedefs
+ = copy_typedef_hash (local_flags.local_typedefs);
+ if (semi_local_flags.local_typedefs)
+ make_cleanup_free_typedef_hash (semi_local_flags.local_typedefs);
+
+ /* Now add in the local typedefs. */
+ recursively_update_typedef_hash (local_flags.local_typedefs, type);
+
+ fprintf_filtered (stream, "{\n");
+
+ if (TYPE_NFIELDS (type) == 0 && TYPE_NFN_FIELDS (type) == 0
+ && TYPE_TYPEDEF_FIELD_COUNT (type) == 0)
+ {
+ if (TYPE_STUB (type))
+ fprintfi_filtered (level + 4, stream,
+ _("<incomplete type>\n"));
+ else
+ fprintfi_filtered (level + 4, stream,
+ _("<no data fields>\n"));
+ }
+
+ /* Start off with no specific section type, so we can print
+ one for the first field we find, and use that section type
+ thereafter until we find another type. */
+
+ enum access_specifier section_type = s_none;
+
+ /* For a class, if all members are private, there's no need
+ for a "private:" label; similarly, for a struct or union
+ masquerading as a class, if all members are public, there's
+ no need for a "public:" label. */
+ bool need_access_label = need_access_label_p (type);
+
+ /* If there is a base class for this type,
+ do not print the field that it occupies. */
+
+ int len = TYPE_NFIELDS (type);
+ vptr_fieldno = get_vptr_fieldno (type, &basetype);
+
+ struct print_offset_data local_podata;
+
+ for (int i = TYPE_N_BASECLASSES (type); i < len; i++)
+ {
+ QUIT;
+
+ /* If we have a virtual table pointer, omit it. Even if
+ virtual table pointers are not specifically marked in
+ the debug info, they should be artificial. */
+ if ((i == vptr_fieldno && type == basetype)
+ || TYPE_FIELD_ARTIFICIAL (type, i))
+ continue;
+
+ if (need_access_label)
+ {
+ section_type = output_access_specifier
+ (stream, section_type, level,
+ TYPE_FIELD_PROTECTED (type, i),
+ TYPE_FIELD_PRIVATE (type, i), flags);
+ }
+
+ bool is_static = field_is_static (&TYPE_FIELD (type, i));
+
+ if (flags->print_offsets)
+ {
+ if (!is_static)
+ {
+ if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
+ {
+ c_print_type_struct_field_offset
+ (type, i, stream, podata);
+ }
+ else if (TYPE_CODE (type) == TYPE_CODE_UNION)
+ c_print_type_union_field_offset (type, i, stream);
+ }
+ else
+ print_spaces_filtered (OFFSET_SPC_LEN, stream);
+ }
+
+ print_spaces_filtered (level + 4, stream);
+ if (is_static)
+ fprintf_filtered (stream, "static ");
+
+ int newshow = show - 1;
+
+ if (flags->print_offsets
+ && (TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_STRUCT
+ || TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_UNION))
+ {
+ /* If we're printing offsets and this field's type is
+ either a struct or an union, then we're interested in
+ expanding it. */
+ ++newshow;
+
+ /* Make sure we carry our offset when we expand the
+ struct/union. */
+ local_podata.offset_bitpos
+ = podata->offset_bitpos + TYPE_FIELD_BITPOS (type, i);
+ /* We're entering a struct/union. Right now,
+ PODATA->END_BITPOS points right *after* the
+ struct/union. However, when printing the first field
+ of this inner struct/union, the end_bitpos we're
+ expecting is exactly at the beginning of the
+ struct/union. Therefore, we subtract the length of
+ the whole struct/union. */
+ local_podata.end_bitpos
+ = podata->end_bitpos
+ - TYPE_LENGTH (TYPE_FIELD_TYPE (type, i)) * TARGET_CHAR_BIT;
+ }
+
+ c_print_type_1 (TYPE_FIELD_TYPE (type, i),
+ TYPE_FIELD_NAME (type, i),
+ stream, newshow, level + 4,
+ &local_flags, &local_podata);
+
+ if (!is_static && TYPE_FIELD_PACKED (type, i))
+ {
+ /* It is a bitfield. This code does not attempt
+ to look at the bitpos and reconstruct filler,
+ unnamed fields. This would lead to misleading
+ results if the compiler does not put out fields
+ for such things (I don't know what it does). */
+ fprintf_filtered (stream, " : %d",
+ TYPE_FIELD_BITSIZE (type, i));
+ }
+ fprintf_filtered (stream, ";\n");
+ }
+
+ /* If there are both fields and methods, put a blank line
+ between them. Make sure to count only method that we
+ will display; artificial methods will be hidden. */
+ len = TYPE_NFN_FIELDS (type);
+ if (!flags->print_methods)
+ len = 0;
+ int real_len = 0;
+ for (int i = 0; i < len; i++)
+ {
+ struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
+ int len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
+ int j;
+
+ for (j = 0; j < len2; j++)
+ if (!TYPE_FN_FIELD_ARTIFICIAL (f, j))
+ real_len++;
+ }
+ if (real_len > 0 && section_type != s_none)
+ fprintf_filtered (stream, "\n");
+
+ /* C++: print out the methods. */
+ for (int i = 0; i < len; i++)
+ {
+ struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
+ int j, len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
+ const char *method_name = TYPE_FN_FIELDLIST_NAME (type, i);
+ const char *name = type_name_no_tag (type);
+ int is_constructor = name && strcmp (method_name,
+ name) == 0;
+
+ for (j = 0; j < len2; j++)
+ {
+ const char *mangled_name;
+ gdb::unique_xmalloc_ptr<char> mangled_name_holder;
+ char *demangled_name;
+ const char *physname = TYPE_FN_FIELD_PHYSNAME (f, j);
+ int is_full_physname_constructor =
+ TYPE_FN_FIELD_CONSTRUCTOR (f, j)
+ || is_constructor_name (physname)
+ || is_destructor_name (physname)
+ || method_name[0] == '~';
+
+ /* Do not print out artificial methods. */
+ if (TYPE_FN_FIELD_ARTIFICIAL (f, j))
+ continue;
+
+ QUIT;
+ section_type = output_access_specifier
+ (stream, section_type, level,
+ TYPE_FN_FIELD_PROTECTED (f, j),
+ TYPE_FN_FIELD_PRIVATE (f, j), flags);
+
+ print_spaces_filtered_with_print_options (level + 4, stream,
+ flags);
+ if (TYPE_FN_FIELD_VIRTUAL_P (f, j))
+ fprintf_filtered (stream, "virtual ");
+ else if (TYPE_FN_FIELD_STATIC_P (f, j))
+ fprintf_filtered (stream, "static ");
+ if (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)) == 0)
+ {
+ /* Keep GDB from crashing here. */
+ fprintf_filtered (stream,
+ _("<undefined type> %s;\n"),
+ TYPE_FN_FIELD_PHYSNAME (f, j));
+ break;
+ }
+ else if (!is_constructor /* Constructors don't
+ have declared
+ types. */
+ && !is_full_physname_constructor /* " " */
+ && !is_type_conversion_operator (type, i, j))
+ {
+ c_print_type_no_offsets
+ (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)),
+ "", stream, -1, 0, &local_flags, podata);
+
+ fputs_filtered (" ", stream);
+ }
+ if (TYPE_FN_FIELD_STUB (f, j))
+ {
+ /* Build something we can demangle. */
+ mangled_name_holder.reset (gdb_mangle_name (type, i, j));
+ mangled_name = mangled_name_holder.get ();
+ }
+ else
+ mangled_name = TYPE_FN_FIELD_PHYSNAME (f, j);
+
+ demangled_name =
+ gdb_demangle (mangled_name,
+ DMGL_ANSI | DMGL_PARAMS);
+ if (demangled_name == NULL)
+ {
+ /* In some cases (for instance with the HP
+ demangling), if a function has more than 10
+ arguments, the demangling will fail.
+ Let's try to reconstruct the function
+ signature from the symbol information. */
+ if (!TYPE_FN_FIELD_STUB (f, j))
+ {
+ int staticp = TYPE_FN_FIELD_STATIC_P (f, j);
+ struct type *mtype = TYPE_FN_FIELD_TYPE (f, j);
+
+ cp_type_print_method_args (mtype,
+ "",
+ method_name,
+ staticp,
+ stream, &local_flags);
+ }
+ else
+ fprintf_filtered (stream,
+ _("<badly mangled name '%s'>"),
+ mangled_name);
+ }
+ else
+ {
+ char *p;
+ char *demangled_no_class
+ = remove_qualifiers (demangled_name);
+
+ /* Get rid of the `static' appended by the
+ demangler. */
+ p = strstr (demangled_no_class, " static");
+ if (p != NULL)
+ {
+ int length = p - demangled_no_class;
+ char *demangled_no_static;
+
+ demangled_no_static
+ = (char *) xmalloc (length + 1);
+ strncpy (demangled_no_static,
+ demangled_no_class, length);
+ *(demangled_no_static + length) = '\0';
+ fputs_filtered (demangled_no_static, stream);
+ xfree (demangled_no_static);
+ }
+ else
+ fputs_filtered (demangled_no_class, stream);
+ xfree (demangled_name);
+ }
+
+ fprintf_filtered (stream, ";\n");
+ }
+ }
+
+ /* Print out nested types. */
+ if (TYPE_NESTED_TYPES_COUNT (type) != 0
+ && semi_local_flags.print_nested_type_limit != 0)
+ {
+ if (semi_local_flags.print_nested_type_limit > 0)
+ --semi_local_flags.print_nested_type_limit;
+
+ if (TYPE_NFIELDS (type) != 0 || TYPE_NFN_FIELDS (type) != 0)
+ fprintf_filtered (stream, "\n");
+
+ for (int i = 0; i < TYPE_NESTED_TYPES_COUNT (type); ++i)
+ {
+ print_spaces_filtered_with_print_options (level + 4, stream,
+ flags);
+ c_print_type_no_offsets (TYPE_NESTED_TYPES_FIELD_TYPE (type, i),
+ "", stream, show, level + 4,
+ &semi_local_flags, podata);
+ fprintf_filtered (stream, ";\n");
+ }
+ }
+
+ /* Print typedefs defined in this class. */
+
+ if (TYPE_TYPEDEF_FIELD_COUNT (type) != 0 && flags->print_typedefs)
+ {
+ if (TYPE_NFIELDS (type) != 0 || TYPE_NFN_FIELDS (type) != 0
+ || TYPE_NESTED_TYPES_COUNT (type) != 0)
+ fprintf_filtered (stream, "\n");
+
+ for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); i++)
+ {
+ struct type *target = TYPE_TYPEDEF_FIELD_TYPE (type, i);
+
+ /* Dereference the typedef declaration itself. */
+ gdb_assert (TYPE_CODE (target) == TYPE_CODE_TYPEDEF);
+ target = TYPE_TARGET_TYPE (target);
+
+ if (need_access_label)
+ {
+ section_type = output_access_specifier
+ (stream, section_type, level,
+ TYPE_TYPEDEF_FIELD_PROTECTED (type, i),
+ TYPE_TYPEDEF_FIELD_PRIVATE (type, i), flags);
+ }
+ print_spaces_filtered_with_print_options (level + 4, stream,
+ flags);
+ fprintf_filtered (stream, "typedef ");
+
+ /* We want to print typedefs with substitutions
+ from the template parameters or globally-known
+ typedefs but not local typedefs. */
+ c_print_type_no_offsets (target,
+ TYPE_TYPEDEF_FIELD_NAME (type, i),
+ stream, show - 1, level + 4,
+ &semi_local_flags, podata);
+ fprintf_filtered (stream, ";\n");
+ }
+ }
+
+ if (flags->print_offsets)
+ {
+ if (show > 0)
+ {
+ fputs_filtered ("\n", stream);
+ print_spaces_filtered_with_print_options (level + 4,
+ stream,
+ flags);
+ fprintf_filtered (stream, "/* total size (bytes): %4u */\n",
+ TYPE_LENGTH (type));
+ }
+
+ print_spaces_filtered (OFFSET_SPC_LEN, stream);
+ if (level == 0)
+ print_spaces_filtered (2, stream);
+ }
+
+ fprintfi_filtered (level, stream, "}");
+ }
+
+ do_cleanups (local_cleanups);
+}
+
/* Print the name of the type (or the ultimate pointer target,
function value or array element), or the description of a structure
or union.
LEVEL is the number of spaces to indent by.
We increase it for some recursive calls. */
-void
-c_type_print_base (struct type *type, struct ui_file *stream,
- int show, int level, const struct type_print_options *flags)
+static void
+c_type_print_base_1 (struct type *type, struct ui_file *stream,
+ int show, int level,
+ const struct type_print_options *flags,
+ struct print_offset_data *podata)
{
int i;
- int len, real_len;
- enum access_specifier section_type;
- int need_access_label = 0;
- int j, len2;
+ int len;
QUIT;
if (TYPE_TARGET_TYPE (type) == NULL)
type_print_unknown_return_type (stream);
else
- c_type_print_base (TYPE_TARGET_TYPE (type),
- stream, show, level, flags);
+ c_type_print_base_1 (TYPE_TARGET_TYPE (type),
+ stream, show, level, flags, podata);
break;
case TYPE_CODE_ARRAY:
case TYPE_CODE_PTR:
case TYPE_CODE_REF:
case TYPE_CODE_RVALUE_REF:
case TYPE_CODE_METHODPTR:
- c_type_print_base (TYPE_TARGET_TYPE (type),
- stream, show, level, flags);
+ c_type_print_base_1 (TYPE_TARGET_TYPE (type),
+ stream, show, level, flags, podata);
break;
case TYPE_CODE_STRUCT:
case TYPE_CODE_UNION:
- {
- struct type_print_options local_flags = *flags;
- struct type_print_options semi_local_flags = *flags;
- struct cleanup *local_cleanups = make_cleanup (null_cleanup, NULL);
-
- local_flags.local_typedefs = NULL;
- semi_local_flags.local_typedefs = NULL;
-
- if (!flags->raw)
- {
- if (flags->local_typedefs)
- local_flags.local_typedefs
- = copy_typedef_hash (flags->local_typedefs);
- else
- local_flags.local_typedefs = create_typedef_hash ();
-
- make_cleanup_free_typedef_hash (local_flags.local_typedefs);
- }
-
- c_type_print_modifier (type, stream, 0, 1);
- if (TYPE_CODE (type) == TYPE_CODE_UNION)
- fprintf_filtered (stream, "union ");
- else if (TYPE_DECLARED_CLASS (type))
- fprintf_filtered (stream, "class ");
- else
- fprintf_filtered (stream, "struct ");
-
- /* Print the tag if it exists. The HP aCC compiler emits a
- spurious "{unnamed struct}"/"{unnamed union}"/"{unnamed
- enum}" tag for unnamed struct/union/enum's, which we don't
- want to print. */
- if (TYPE_TAG_NAME (type) != NULL
- && !startswith (TYPE_TAG_NAME (type), "{unnamed"))
- {
- /* When printing the tag name, we are still effectively
- printing in the outer context, hence the use of FLAGS
- here. */
- print_name_maybe_canonical (TYPE_TAG_NAME (type), flags, stream);
- if (show > 0)
- fputs_filtered (" ", stream);
- }
-
- if (show < 0)
- {
- /* If we just printed a tag name, no need to print anything
- else. */
- if (TYPE_TAG_NAME (type) == NULL)
- fprintf_filtered (stream, "{...}");
- }
- else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
- {
- struct type *basetype;
- int vptr_fieldno;
-
- c_type_print_template_args (&local_flags, type, stream);
-
- /* Add in template parameters when printing derivation info. */
- add_template_parameters (local_flags.local_typedefs, type);
- cp_type_print_derivation_info (stream, type, &local_flags);
-
- /* This holds just the global typedefs and the template
- parameters. */
- semi_local_flags.local_typedefs
- = copy_typedef_hash (local_flags.local_typedefs);
- if (semi_local_flags.local_typedefs)
- make_cleanup_free_typedef_hash (semi_local_flags.local_typedefs);
-
- /* Now add in the local typedefs. */
- recursively_update_typedef_hash (local_flags.local_typedefs, type);
-
- fprintf_filtered (stream, "{\n");
- if (TYPE_NFIELDS (type) == 0 && TYPE_NFN_FIELDS (type) == 0
- && TYPE_TYPEDEF_FIELD_COUNT (type) == 0)
- {
- if (TYPE_STUB (type))
- fprintfi_filtered (level + 4, stream,
- _("<incomplete type>\n"));
- else
- fprintfi_filtered (level + 4, stream,
- _("<no data fields>\n"));
- }
-
- /* Start off with no specific section type, so we can print
- one for the first field we find, and use that section type
- thereafter until we find another type. */
-
- section_type = s_none;
-
- /* For a class, if all members are private, there's no need
- for a "private:" label; similarly, for a struct or union
- masquerading as a class, if all members are public, there's
- no need for a "public:" label. */
-
- if (TYPE_DECLARED_CLASS (type))
- {
- QUIT;
- len = TYPE_NFIELDS (type);
- for (i = TYPE_N_BASECLASSES (type); i < len; i++)
- if (!TYPE_FIELD_PRIVATE (type, i))
- {
- need_access_label = 1;
- break;
- }
- QUIT;
- if (!need_access_label)
- {
- len2 = TYPE_NFN_FIELDS (type);
- for (j = 0; j < len2; j++)
- {
- len = TYPE_FN_FIELDLIST_LENGTH (type, j);
- for (i = 0; i < len; i++)
- if (!TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type,
- j), i))
- {
- need_access_label = 1;
- break;
- }
- if (need_access_label)
- break;
- }
- }
- QUIT;
- if (!need_access_label)
- {
- for (i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); ++i)
- {
- if (!TYPE_TYPEDEF_FIELD_PRIVATE (type, i))
- {
- need_access_label = 1;
- break;
- }
- }
- }
- }
- else
- {
- QUIT;
- len = TYPE_NFIELDS (type);
- for (i = TYPE_N_BASECLASSES (type); i < len; i++)
- if (TYPE_FIELD_PRIVATE (type, i)
- || TYPE_FIELD_PROTECTED (type, i))
- {
- need_access_label = 1;
- break;
- }
- QUIT;
- if (!need_access_label)
- {
- len2 = TYPE_NFN_FIELDS (type);
- for (j = 0; j < len2; j++)
- {
- QUIT;
- len = TYPE_FN_FIELDLIST_LENGTH (type, j);
- for (i = 0; i < len; i++)
- if (TYPE_FN_FIELD_PROTECTED (TYPE_FN_FIELDLIST1 (type,
- j), i)
- || TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type,
- j),
- i))
- {
- need_access_label = 1;
- break;
- }
- if (need_access_label)
- break;
- }
- }
- QUIT;
- if (!need_access_label)
- {
- for (i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); ++i)
- {
- if (TYPE_TYPEDEF_FIELD_PROTECTED (type, i)
- || TYPE_TYPEDEF_FIELD_PRIVATE (type, i))
- {
- need_access_label = 1;
- break;
- }
- }
- }
- }
-
- /* If there is a base class for this type,
- do not print the field that it occupies. */
-
- len = TYPE_NFIELDS (type);
- vptr_fieldno = get_vptr_fieldno (type, &basetype);
- for (i = TYPE_N_BASECLASSES (type); i < len; i++)
- {
- QUIT;
-
- /* If we have a virtual table pointer, omit it. Even if
- virtual table pointers are not specifically marked in
- the debug info, they should be artificial. */
- if ((i == vptr_fieldno && type == basetype)
- || TYPE_FIELD_ARTIFICIAL (type, i))
- continue;
-
- if (need_access_label)
- {
- section_type = output_access_specifier
- (stream, section_type, level,
- TYPE_FIELD_PROTECTED (type, i),
- TYPE_FIELD_PRIVATE (type, i));
- }
-
- print_spaces_filtered (level + 4, stream);
- if (field_is_static (&TYPE_FIELD (type, i)))
- fprintf_filtered (stream, "static ");
- c_print_type (TYPE_FIELD_TYPE (type, i),
- TYPE_FIELD_NAME (type, i),
- stream, show - 1, level + 4,
- &local_flags);
- if (!field_is_static (&TYPE_FIELD (type, i))
- && TYPE_FIELD_PACKED (type, i))
- {
- /* It is a bitfield. This code does not attempt
- to look at the bitpos and reconstruct filler,
- unnamed fields. This would lead to misleading
- results if the compiler does not put out fields
- for such things (I don't know what it does). */
- fprintf_filtered (stream, " : %d",
- TYPE_FIELD_BITSIZE (type, i));
- }
- fprintf_filtered (stream, ";\n");
- }
-
- /* If there are both fields and methods, put a blank line
- between them. Make sure to count only method that we
- will display; artificial methods will be hidden. */
- len = TYPE_NFN_FIELDS (type);
- if (!flags->print_methods)
- len = 0;
- real_len = 0;
- for (i = 0; i < len; i++)
- {
- struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
- int len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
- int j;
-
- for (j = 0; j < len2; j++)
- if (!TYPE_FN_FIELD_ARTIFICIAL (f, j))
- real_len++;
- }
- if (real_len > 0 && section_type != s_none)
- fprintf_filtered (stream, "\n");
-
- /* C++: print out the methods. */
- for (i = 0; i < len; i++)
- {
- struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
- int j, len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
- const char *method_name = TYPE_FN_FIELDLIST_NAME (type, i);
- const char *name = type_name_no_tag (type);
- int is_constructor = name && strcmp (method_name,
- name) == 0;
-
- for (j = 0; j < len2; j++)
- {
- const char *mangled_name;
- char *demangled_name;
- struct cleanup *inner_cleanup;
- const char *physname = TYPE_FN_FIELD_PHYSNAME (f, j);
- int is_full_physname_constructor =
- TYPE_FN_FIELD_CONSTRUCTOR (f, j)
- || is_constructor_name (physname)
- || is_destructor_name (physname)
- || method_name[0] == '~';
-
- /* Do not print out artificial methods. */
- if (TYPE_FN_FIELD_ARTIFICIAL (f, j))
- continue;
-
- inner_cleanup = make_cleanup (null_cleanup, NULL);
-
- QUIT;
- section_type = output_access_specifier
- (stream, section_type, level,
- TYPE_FN_FIELD_PROTECTED (f, j),
- TYPE_FN_FIELD_PRIVATE (f, j));
-
- print_spaces_filtered (level + 4, stream);
- if (TYPE_FN_FIELD_VIRTUAL_P (f, j))
- fprintf_filtered (stream, "virtual ");
- else if (TYPE_FN_FIELD_STATIC_P (f, j))
- fprintf_filtered (stream, "static ");
- if (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)) == 0)
- {
- /* Keep GDB from crashing here. */
- fprintf_filtered (stream,
- _("<undefined type> %s;\n"),
- TYPE_FN_FIELD_PHYSNAME (f, j));
- break;
- }
- else if (!is_constructor /* Constructors don't
- have declared
- types. */
- && !is_full_physname_constructor /* " " */
- && !is_type_conversion_operator (type, i, j))
- {
- c_print_type (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)),
- "", stream, -1, 0,
- &local_flags);
- fputs_filtered (" ", stream);
- }
- if (TYPE_FN_FIELD_STUB (f, j))
- {
- char *tem;
-
- /* Build something we can demangle. */
- tem = gdb_mangle_name (type, i, j);
- make_cleanup (xfree, tem);
- mangled_name = tem;
- }
- else
- mangled_name = TYPE_FN_FIELD_PHYSNAME (f, j);
-
- demangled_name =
- gdb_demangle (mangled_name,
- DMGL_ANSI | DMGL_PARAMS);
- if (demangled_name == NULL)
- {
- /* In some cases (for instance with the HP
- demangling), if a function has more than 10
- arguments, the demangling will fail.
- Let's try to reconstruct the function
- signature from the symbol information. */
- if (!TYPE_FN_FIELD_STUB (f, j))
- {
- int staticp = TYPE_FN_FIELD_STATIC_P (f, j);
- struct type *mtype = TYPE_FN_FIELD_TYPE (f, j);
-
- cp_type_print_method_args (mtype,
- "",
- method_name,
- staticp,
- stream, &local_flags);
- }
- else
- fprintf_filtered (stream,
- _("<badly mangled name '%s'>"),
- mangled_name);
- }
- else
- {
- char *p;
- char *demangled_no_class
- = remove_qualifiers (demangled_name);
-
- /* Get rid of the `static' appended by the
- demangler. */
- p = strstr (demangled_no_class, " static");
- if (p != NULL)
- {
- int length = p - demangled_no_class;
- char *demangled_no_static;
-
- demangled_no_static
- = (char *) xmalloc (length + 1);
- strncpy (demangled_no_static,
- demangled_no_class, length);
- *(demangled_no_static + length) = '\0';
- fputs_filtered (demangled_no_static, stream);
- xfree (demangled_no_static);
- }
- else
- fputs_filtered (demangled_no_class, stream);
- xfree (demangled_name);
- }
-
- do_cleanups (inner_cleanup);
-
- fprintf_filtered (stream, ";\n");
- }
- }
-
- /* Print typedefs defined in this class. */
-
- if (TYPE_TYPEDEF_FIELD_COUNT (type) != 0 && flags->print_typedefs)
- {
- if (TYPE_NFIELDS (type) != 0 || TYPE_NFN_FIELDS (type) != 0)
- fprintf_filtered (stream, "\n");
-
- for (i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); i++)
- {
- struct type *target = TYPE_TYPEDEF_FIELD_TYPE (type, i);
-
- /* Dereference the typedef declaration itself. */
- gdb_assert (TYPE_CODE (target) == TYPE_CODE_TYPEDEF);
- target = TYPE_TARGET_TYPE (target);
-
- if (need_access_label)
- {
- section_type = output_access_specifier
- (stream, section_type, level,
- TYPE_TYPEDEF_FIELD_PROTECTED (type, i),
- TYPE_TYPEDEF_FIELD_PRIVATE (type, i));
- }
- print_spaces_filtered (level + 4, stream);
- fprintf_filtered (stream, "typedef ");
-
- /* We want to print typedefs with substitutions
- from the template parameters or globally-known
- typedefs but not local typedefs. */
- c_print_type (target,
- TYPE_TYPEDEF_FIELD_NAME (type, i),
- stream, show - 1, level + 4,
- &semi_local_flags);
- fprintf_filtered (stream, ";\n");
- }
- }
-
- fprintfi_filtered (level, stream, "}");
- }
-
- do_cleanups (local_cleanups);
- }
+ c_type_print_base_struct_union (type, stream, show, level, flags,
+ podata);
break;
case TYPE_CODE_ENUM:
print_spaces_filtered (level + 4, stream);
/* We pass "show" here and not "show - 1" to get enum types
printed. There's no other way to see them. */
- c_print_type (TYPE_FIELD_TYPE (type, i),
- TYPE_FIELD_NAME (type, i),
- stream, show, level + 4,
- &local_flags);
+ c_print_type_1 (TYPE_FIELD_TYPE (type, i),
+ TYPE_FIELD_NAME (type, i),
+ stream, show, level + 4,
+ &local_flags, podata);
fprintf_filtered (stream, " @%s",
plongest (TYPE_FIELD_BITPOS (type, i)));
if (TYPE_FIELD_BITSIZE (type, i) > 1)
break;
}
}
+
+/* See c_type_print_base_1. */
+
+void
+c_type_print_base (struct type *type, struct ui_file *stream,
+ int show, int level,
+ const struct type_print_options *flags)
+{
+ struct print_offset_data podata;
+
+ c_type_print_base_1 (type, stream, show, level, flags, &podata);
+}
projects / deliverable / binutils-gdb.git / blobdiff