/* Support for printing C++ values for GDB, the GNU debugger.
- Copyright (C) 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
- 2000, 2001, 2002, 2003, 2005, 2006, 2007, 2008
- Free Software Foundation, Inc.
+ Copyright (C) 1986-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "gdbcmd.h"
#include "demangle.h"
#include "annotate.h"
-#include "gdb_string.h"
#include "c-lang.h"
#include "target.h"
#include "cp-abi.h"
#include "valprint.h"
#include "cp-support.h"
#include "language.h"
-
-/* Controls printing of vtbl's */
-int vtblprint;
-static void
-show_vtblprint (struct ui_file *file, int from_tty,
- struct cmd_list_element *c, const char *value)
-{
- fprintf_filtered (file, _("\
-Printing of C++ virtual function tables is %s.\n"),
- value);
-}
-
-/* Controls looking up an object's derived type using what we find in
- its vtables. */
-int objectprint;
-static void
-show_objectprint (struct ui_file *file, int from_tty,
- struct cmd_list_element *c,
- const char *value)
-{
- fprintf_filtered (file, _("\
-Printing of object's derived type based on vtable info is %s.\n"),
- value);
-}
-
-int static_field_print; /* Controls printing of static fields. */
-static void
-show_static_field_print (struct ui_file *file, int from_tty,
- struct cmd_list_element *c, const char *value)
-{
- fprintf_filtered (file, _("Printing of C++ static members is %s.\n"),
- value);
-}
-
+#include "extension.h"
+#include "typeprint.h"
+#include "gdbsupport/byte-vector.h"
+#include "gdbarch.h"
+#include "cli/cli-style.h"
static struct obstack dont_print_vb_obstack;
static struct obstack dont_print_statmem_obstack;
-
-extern void _initialize_cp_valprint (void);
+static struct obstack dont_print_stat_array_obstack;
static void cp_print_static_field (struct type *, struct value *,
- struct ui_file *, int, int,
- enum val_prettyprint);
+ struct ui_file *, int,
+ const struct value_print_options *);
-static void cp_print_value (struct type *, struct type *, const gdb_byte *,
- int, CORE_ADDR, struct ui_file *, int, int,
- enum val_prettyprint, struct type **);
+static void cp_print_value (struct type *, struct type *,
+ LONGEST,
+ CORE_ADDR, struct ui_file *,
+ int, struct value *,
+ const struct value_print_options *,
+ struct type **);
/* GCC versions after 2.4.5 use this. */
int
cp_is_vtbl_ptr_type (struct type *type)
{
- char *typename = type_name_no_tag (type);
+ const char *type_name = TYPE_NAME (type);
- return (typename != NULL && !strcmp (typename, vtbl_ptr_name));
+ return (type_name != NULL && !strcmp (type_name, vtbl_ptr_name));
}
/* Return truth value for the assertion that TYPE is of the type
int
cp_is_vtbl_member (struct type *type)
{
- /* With older versions of g++, the vtbl field pointed to an array
- of structures. Nowadays it points directly to the structure. */
+ /* With older versions of g++, the vtbl field pointed to an array of
+ structures. Nowadays it points directly to the structure. */
if (TYPE_CODE (type) == TYPE_CODE_PTR)
{
type = TYPE_TARGET_TYPE (type);
if (TYPE_CODE (type) == TYPE_CODE_ARRAY)
{
type = TYPE_TARGET_TYPE (type);
- if (TYPE_CODE (type) == TYPE_CODE_STRUCT /* if not using thunks */
- || TYPE_CODE (type) == TYPE_CODE_PTR) /* if using thunks */
+ if (TYPE_CODE (type) == TYPE_CODE_STRUCT /* if not using thunks */
+ || TYPE_CODE (type) == TYPE_CODE_PTR) /* if using thunks */
{
/* Virtual functions tables are full of pointers
- to virtual functions. */
+ to virtual functions. */
return cp_is_vtbl_ptr_type (type);
}
}
}
else if (TYPE_CODE (type) == TYPE_CODE_PTR) /* if using thunks */
{
- /* The type name of the thunk pointer is NULL when using dwarf2.
- We could test for a pointer to a function, but there is
- no type info for the virtual table either, so it wont help. */
+ /* The type name of the thunk pointer is NULL when using
+ dwarf2. We could test for a pointer to a function, but
+ there is no type info for the virtual table either, so it
+ wont help. */
return cp_is_vtbl_ptr_type (type);
}
}
}
/* Mutually recursive subroutines of cp_print_value and c_val_print to
- print out a structure's fields: cp_print_value_fields and cp_print_value.
+ print out a structure's fields: cp_print_value_fields and
+ cp_print_value.
- TYPE, VALADDR, ADDRESS, STREAM, RECURSE, and PRETTY have the
- same meanings as in cp_print_value and c_val_print.
+ TYPE, VALADDR, ADDRESS, STREAM, RECURSE, and OPTIONS have the same
+ meanings as in cp_print_value and c_val_print.
- 2nd argument REAL_TYPE is used to carry over the type of the derived
- class across the recursion to base classes.
+ 2nd argument REAL_TYPE is used to carry over the type of the
+ derived class across the recursion to base classes.
- DONT_PRINT is an array of baseclass types that we
- should not print, or zero if called from top level. */
+ DONT_PRINT is an array of baseclass types that we should not print,
+ or zero if called from top level. */
void
cp_print_value_fields (struct type *type, struct type *real_type,
- const gdb_byte *valaddr, int offset, CORE_ADDR address,
- struct ui_file *stream, int format, int recurse,
- enum val_prettyprint pretty,
- struct type **dont_print_vb,int dont_print_statmem)
+ LONGEST offset,
+ CORE_ADDR address, struct ui_file *stream,
+ int recurse, struct value *val,
+ const struct value_print_options *options,
+ struct type **dont_print_vb,
+ int dont_print_statmem)
{
int i, len, n_baseclasses;
- char *last_dont_print = obstack_next_free (&dont_print_statmem_obstack);
int fields_seen = 0;
+ static int last_set_recurse = -1;
- CHECK_TYPEDEF (type);
+ type = check_typedef (type);
+
+ if (recurse == 0)
+ {
+ /* Any object can be left on obstacks only during an unexpected
+ error. */
+
+ if (obstack_object_size (&dont_print_statmem_obstack) > 0)
+ {
+ obstack_free (&dont_print_statmem_obstack, NULL);
+ obstack_begin (&dont_print_statmem_obstack,
+ 32 * sizeof (CORE_ADDR));
+ }
+ if (obstack_object_size (&dont_print_stat_array_obstack) > 0)
+ {
+ obstack_free (&dont_print_stat_array_obstack, NULL);
+ obstack_begin (&dont_print_stat_array_obstack,
+ 32 * sizeof (struct type *));
+ }
+ }
fprintf_filtered (stream, "{");
len = TYPE_NFIELDS (type);
duplicates of virtual baseclasses. */
if (n_baseclasses > 0)
- cp_print_value (type, real_type, valaddr, offset, address, stream,
- format, recurse + 1, pretty, dont_print_vb);
+ cp_print_value (type, real_type,
+ offset, address, stream,
+ recurse + 1, val, options,
+ dont_print_vb);
/* Second, print out data fields */
/* If there are no data fields, skip this part */
if (len == n_baseclasses || !len)
- fprintf_filtered (stream, "<No data fields>");
+ fprintf_styled (stream, metadata_style.style (), "<No data fields>");
else
{
- struct obstack tmp_obstack = dont_print_statmem_obstack;
+ size_t statmem_obstack_initial_size = 0;
+ size_t stat_array_obstack_initial_size = 0;
+ struct type *vptr_basetype = NULL;
+ int vptr_fieldno;
if (dont_print_statmem == 0)
{
- /* If we're at top level, carve out a completely fresh
- chunk of the obstack and use that until this particular
- invocation returns. */
- obstack_finish (&dont_print_statmem_obstack);
+ statmem_obstack_initial_size =
+ obstack_object_size (&dont_print_statmem_obstack);
+
+ if (last_set_recurse != recurse)
+ {
+ stat_array_obstack_initial_size =
+ obstack_object_size (&dont_print_stat_array_obstack);
+
+ last_set_recurse = recurse;
+ }
}
+ vptr_fieldno = get_vptr_fieldno (type, &vptr_basetype);
for (i = n_baseclasses; i < len; i++)
{
+ const gdb_byte *valaddr = value_contents_for_printing (val);
+
/* If requested, skip printing of static fields. */
- if (!static_field_print && TYPE_FIELD_STATIC (type, i))
+ if (!options->static_field_print
+ && field_is_static (&TYPE_FIELD (type, i)))
continue;
if (fields_seen)
- fprintf_filtered (stream, ", ");
+ {
+ fputs_filtered (",", stream);
+ if (!options->prettyformat)
+ fputs_filtered (" ", stream);
+ }
else if (n_baseclasses > 0)
{
- if (pretty)
+ if (options->prettyformat)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 + 2 * recurse, stream);
fputs_filtered ("members of ", stream);
- fputs_filtered (type_name_no_tag (type), stream);
- fputs_filtered (": ", stream);
+ fputs_filtered (TYPE_NAME (type), stream);
+ fputs_filtered (":", stream);
}
}
fields_seen = 1;
- if (pretty)
+ if (options->prettyformat)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 + 2 * recurse, stream);
{
wrap_here (n_spaces (2 + 2 * recurse));
}
- if (inspect_it)
- {
- if (TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_PTR)
- fputs_filtered ("\"( ptr \"", stream);
- else
- fputs_filtered ("\"( nodef \"", stream);
- if (TYPE_FIELD_STATIC (type, i))
- fputs_filtered ("static ", stream);
- fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
- current_language->la_language,
- DMGL_PARAMS | DMGL_ANSI);
- fputs_filtered ("\" \"", stream);
- fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
- current_language->la_language,
- DMGL_PARAMS | DMGL_ANSI);
- fputs_filtered ("\") \"", stream);
- }
+
+ annotate_field_begin (TYPE_FIELD_TYPE (type, i));
+
+ if (field_is_static (&TYPE_FIELD (type, i)))
+ fputs_filtered ("static ", stream);
+ fprintf_symbol_filtered (stream,
+ TYPE_FIELD_NAME (type, i),
+ current_language->la_language,
+ DMGL_PARAMS | DMGL_ANSI);
+ annotate_field_name_end ();
+
+ /* We tweak various options in a few cases below. */
+ value_print_options options_copy = *options;
+ value_print_options *opts = &options_copy;
+
+ /* Do not print leading '=' in case of anonymous
+ unions. */
+ if (strcmp (TYPE_FIELD_NAME (type, i), ""))
+ fputs_filtered (" = ", stream);
else
{
- annotate_field_begin (TYPE_FIELD_TYPE (type, i));
-
- if (TYPE_FIELD_STATIC (type, i))
- fputs_filtered ("static ", stream);
- fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
- current_language->la_language,
- DMGL_PARAMS | DMGL_ANSI);
- annotate_field_name_end ();
- /* do not print leading '=' in case of anonymous unions */
- if (strcmp (TYPE_FIELD_NAME (type, i), ""))
- fputs_filtered (" = ", stream);
- annotate_field_value ();
+ /* If this is an anonymous field then we want to consider it
+ as though it is at its parent's depth when it comes to the
+ max print depth. */
+ if (opts->max_depth != -1 && opts->max_depth < INT_MAX)
+ ++opts->max_depth;
}
+ annotate_field_value ();
- if (!TYPE_FIELD_STATIC (type, i) && TYPE_FIELD_PACKED (type, i))
+ if (!field_is_static (&TYPE_FIELD (type, i))
+ && TYPE_FIELD_PACKED (type, i))
{
struct value *v;
- /* Bitfields require special handling, especially due to byte
- order problems. */
+ /* Bitfields require special handling, especially due to
+ byte order problems. */
if (TYPE_FIELD_IGNORE (type, i))
{
- fputs_filtered ("<optimized out or zero length>", stream);
+ fputs_styled ("<optimized out or zero length>",
+ metadata_style.style (), stream);
+ }
+ else if (value_bits_synthetic_pointer (val,
+ TYPE_FIELD_BITPOS (type,
+ i),
+ TYPE_FIELD_BITSIZE (type,
+ i)))
+ {
+ fputs_styled (_("<synthetic pointer>"),
+ metadata_style.style (), stream);
}
else
{
- v = value_from_longest
- (TYPE_FIELD_TYPE (type, i),
- unpack_field_as_long (type, valaddr + offset, i));
+ opts->deref_ref = 0;
- common_val_print (v, stream, format, 0, recurse + 1, pretty,
- current_language);
+ v = value_field_bitfield (type, i, valaddr, offset, val);
+
+ common_val_print (v, stream, recurse + 1,
+ opts, current_language);
}
}
else
{
if (TYPE_FIELD_IGNORE (type, i))
{
- fputs_filtered ("<optimized out or zero length>", stream);
+ fputs_styled ("<optimized out or zero length>",
+ metadata_style.style (), stream);
}
- else if (TYPE_FIELD_STATIC (type, i))
+ else if (field_is_static (&TYPE_FIELD (type, i)))
{
- struct value *v = value_static_field (type, i);
- if (v == NULL)
- fputs_filtered ("<optimized out>", stream);
- else
- cp_print_static_field (TYPE_FIELD_TYPE (type, i), v,
- stream, format, recurse + 1,
- pretty);
+ try
+ {
+ struct value *v = value_static_field (type, i);
+
+ cp_print_static_field (TYPE_FIELD_TYPE (type, i),
+ v, stream, recurse + 1,
+ opts);
+ }
+ catch (const gdb_exception_error &ex)
+ {
+ fprintf_styled (stream, metadata_style.style (),
+ _("<error reading variable: %s>"),
+ ex.what ());
+ }
+ }
+ else if (i == vptr_fieldno && type == vptr_basetype)
+ {
+ int i_offset = offset + TYPE_FIELD_BITPOS (type, i) / 8;
+ struct type *i_type = TYPE_FIELD_TYPE (type, i);
+
+ if (valprint_check_validity (stream, i_type, i_offset, val))
+ {
+ CORE_ADDR addr;
+
+ addr = extract_typed_address (valaddr + i_offset, i_type);
+ print_function_pointer_address (opts,
+ get_type_arch (type),
+ addr, stream);
+ }
}
else
{
+ opts->deref_ref = 0;
val_print (TYPE_FIELD_TYPE (type, i),
- valaddr, offset + TYPE_FIELD_BITPOS (type, i) / 8,
- address + TYPE_FIELD_BITPOS (type, i) / 8,
- stream, format, 0, recurse + 1, pretty,
+ offset + TYPE_FIELD_BITPOS (type, i) / 8,
+ address,
+ stream, recurse + 1, val, opts,
current_language);
}
}
if (dont_print_statmem == 0)
{
- /* Free the space used to deal with the printing
- of the members from top level. */
- obstack_free (&dont_print_statmem_obstack, last_dont_print);
- dont_print_statmem_obstack = tmp_obstack;
+ size_t obstack_final_size =
+ obstack_object_size (&dont_print_statmem_obstack);
+
+ if (obstack_final_size > statmem_obstack_initial_size)
+ {
+ /* In effect, a pop of the printed-statics stack. */
+ size_t shrink_bytes
+ = statmem_obstack_initial_size - obstack_final_size;
+ obstack_blank_fast (&dont_print_statmem_obstack, shrink_bytes);
+ }
+
+ if (last_set_recurse != recurse)
+ {
+ obstack_final_size =
+ obstack_object_size (&dont_print_stat_array_obstack);
+
+ if (obstack_final_size > stat_array_obstack_initial_size)
+ {
+ void *free_to_ptr =
+ (char *) obstack_next_free (&dont_print_stat_array_obstack)
+ - (obstack_final_size
+ - stat_array_obstack_initial_size);
+
+ obstack_free (&dont_print_stat_array_obstack,
+ free_to_ptr);
+ }
+ last_set_recurse = -1;
+ }
}
- if (pretty)
+ if (options->prettyformat)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 * recurse, stream);
fprintf_filtered (stream, "}");
}
-/* Special val_print routine to avoid printing multiple copies of virtual
- baseclasses. */
+/* Like cp_print_value_fields, but find the runtime type of the object
+ and pass it as the `real_type' argument to cp_print_value_fields.
+ This function is a hack to work around the fact that
+ common_val_print passes the embedded offset to val_print, but not
+ the enclosing type. */
+
+void
+cp_print_value_fields_rtti (struct type *type,
+ const gdb_byte *valaddr, LONGEST offset,
+ CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ struct value *val,
+ const struct value_print_options *options,
+ struct type **dont_print_vb,
+ int dont_print_statmem)
+{
+ struct type *real_type = NULL;
+
+ /* We require all bits to be valid in order to attempt a
+ conversion. */
+ if (!value_bits_any_optimized_out (val,
+ TARGET_CHAR_BIT * offset,
+ TARGET_CHAR_BIT * TYPE_LENGTH (type)))
+ {
+ struct value *value;
+ int full, using_enc;
+ LONGEST top;
+
+ /* Ugh, we have to convert back to a value here. */
+ value = value_from_contents_and_address (type, valaddr + offset,
+ address + offset);
+ type = value_type (value);
+ /* We don't actually care about most of the result here -- just
+ the type. We already have the correct offset, due to how
+ val_print was initially called. */
+ real_type = value_rtti_type (value, &full, &top, &using_enc);
+ }
+
+ if (!real_type)
+ real_type = type;
+
+ cp_print_value_fields (type, real_type, offset,
+ address, stream, recurse, val, options,
+ dont_print_vb, dont_print_statmem);
+}
+
+/* Special val_print routine to avoid printing multiple copies of
+ virtual baseclasses. */
static void
cp_print_value (struct type *type, struct type *real_type,
- const gdb_byte *valaddr, int offset, CORE_ADDR address,
- struct ui_file *stream, int format, int recurse,
- enum val_prettyprint pretty, struct type **dont_print_vb)
+ LONGEST offset,
+ CORE_ADDR address, struct ui_file *stream,
+ int recurse, struct value *val,
+ const struct value_print_options *options,
+ struct type **dont_print_vb)
{
struct type **last_dont_print
= (struct type **) obstack_next_free (&dont_print_vb_obstack);
struct obstack tmp_obstack = dont_print_vb_obstack;
int i, n_baseclasses = TYPE_N_BASECLASSES (type);
- int thisoffset;
+ LONGEST thisoffset;
struct type *thistype;
+ const gdb_byte *valaddr = value_contents_for_printing (val);
if (dont_print_vb == 0)
{
- /* If we're at top level, carve out a completely fresh
- chunk of the obstack and use that until this particular
- invocation returns. */
+ /* If we're at top level, carve out a completely fresh chunk of
+ the obstack and use that until this particular invocation
+ returns. */
/* Bump up the high-water mark. Now alpha is omega. */
obstack_finish (&dont_print_vb_obstack);
}
for (i = 0; i < n_baseclasses; i++)
{
- int boffset;
- int skip;
+ LONGEST boffset = 0;
+ int skip = 0;
struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i));
- char *basename = TYPE_NAME (baseclass);
- const gdb_byte *base_valaddr;
+ const char *basename = TYPE_NAME (baseclass);
+ struct value *base_val = NULL;
if (BASETYPE_VIA_VIRTUAL (type, i))
{
struct type **first_dont_print
= (struct type **) obstack_base (&dont_print_vb_obstack);
- int j = (struct type **) obstack_next_free (&dont_print_vb_obstack)
- - first_dont_print;
+ int j = (struct type **)
+ obstack_next_free (&dont_print_vb_obstack) - first_dont_print;
while (--j >= 0)
if (baseclass == first_dont_print[j])
thisoffset = offset;
thistype = real_type;
- boffset = baseclass_offset (type, i, valaddr + offset, address);
- skip = ((boffset == -1) || (boffset + offset) < 0) ? 1 : -1;
-
- if (BASETYPE_VIA_VIRTUAL (type, i))
+ try
+ {
+ boffset = baseclass_offset (type, i, valaddr, offset, address, val);
+ }
+ catch (const gdb_exception_error &ex)
{
- /* The virtual base class pointer might have been
- clobbered by the user program. Make sure that it
- still points to a valid memory location. */
+ if (ex.error == NOT_AVAILABLE_ERROR)
+ skip = -1;
+ else
+ skip = 1;
+ }
- if (boffset != -1
- && ((boffset + offset) < 0
- || (boffset + offset) >= TYPE_LENGTH (type)))
+ if (skip == 0)
+ {
+ if (BASETYPE_VIA_VIRTUAL (type, i))
{
- /* FIXME (alloca): unsafe if baseclass is really really large. */
- gdb_byte *buf = alloca (TYPE_LENGTH (baseclass));
- base_valaddr = buf;
- if (target_read_memory (address + boffset, buf,
- TYPE_LENGTH (baseclass)) != 0)
- skip = 1;
- address = address + boffset;
- thisoffset = 0;
- boffset = 0;
- thistype = baseclass;
+ /* The virtual base class pointer might have been
+ clobbered by the user program. Make sure that it
+ still points to a valid memory location. */
+
+ if ((boffset + offset) < 0
+ || (boffset + offset) >= TYPE_LENGTH (real_type))
+ {
+ gdb::byte_vector buf (TYPE_LENGTH (baseclass));
+
+ if (target_read_memory (address + boffset, buf.data (),
+ TYPE_LENGTH (baseclass)) != 0)
+ skip = 1;
+ base_val = value_from_contents_and_address (baseclass,
+ buf.data (),
+ address + boffset);
+ baseclass = value_type (base_val);
+ thisoffset = 0;
+ boffset = 0;
+ thistype = baseclass;
+ }
+ else
+ {
+ base_val = val;
+ }
}
else
- base_valaddr = valaddr;
+ {
+ base_val = val;
+ }
}
- else
- base_valaddr = valaddr;
- /* now do the printing */
- if (pretty)
+ /* Now do the printing. */
+ if (options->prettyformat)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 * recurse, stream);
}
fputs_filtered ("<", stream);
- /* Not sure what the best notation is in the case where there is no
- baseclass name. */
+ /* Not sure what the best notation is in the case where there is
+ no baseclass name. */
fputs_filtered (basename ? basename : "", stream);
fputs_filtered ("> = ", stream);
-
- if (skip >= 1)
- fprintf_filtered (stream, "<invalid address>");
+ if (skip < 0)
+ val_print_unavailable (stream);
+ else if (skip > 0)
+ val_print_invalid_address (stream);
else
- cp_print_value_fields (baseclass, thistype, base_valaddr,
- thisoffset + boffset, address + boffset,
- stream, format,
- recurse, pretty,
- ((struct type **)
- obstack_base (&dont_print_vb_obstack)),
- 0);
+ {
+ int result = 0;
+
+ if (options->max_depth > -1
+ && recurse >= options->max_depth)
+ {
+ const struct language_defn *language = current_language;
+ gdb_assert (language->la_struct_too_deep_ellipsis != NULL);
+ fputs_filtered (language->la_struct_too_deep_ellipsis, stream);
+ }
+ else
+ {
+ /* Attempt to run an extension language pretty-printer on the
+ baseclass if possible. */
+ if (!options->raw)
+ result
+ = apply_ext_lang_val_pretty_printer (baseclass,
+ thisoffset + boffset,
+ value_address (base_val),
+ stream, recurse,
+ base_val, options,
+ current_language);
+
+ if (!result)
+ cp_print_value_fields (baseclass, thistype,
+ thisoffset + boffset,
+ value_address (base_val),
+ stream, recurse, base_val, options,
+ ((struct type **)
+ obstack_base (&dont_print_vb_obstack)),
+ 0);
+ }
+ }
fputs_filtered (", ", stream);
flush_it:
}
}
-/* Print value of a static member.
- To avoid infinite recursion when printing a class that contains
- a static instance of the class, we keep the addresses of all printed
- static member classes in an obstack and refuse to print them more
- than once.
+/* Print value of a static member. To avoid infinite recursion when
+ printing a class that contains a static instance of the class, we
+ keep the addresses of all printed static member classes in an
+ obstack and refuse to print them more than once.
- VAL contains the value to print, TYPE, STREAM, RECURSE, and PRETTY
+ VAL contains the value to print, TYPE, STREAM, RECURSE, and OPTIONS
have the same meanings as in c_val_print. */
static void
cp_print_static_field (struct type *type,
struct value *val,
struct ui_file *stream,
- int format,
int recurse,
- enum val_prettyprint pretty)
+ const struct value_print_options *options)
{
- if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
+ struct value_print_options opts;
+
+ if (value_entirely_optimized_out (val))
+ {
+ val_print_optimized_out (val, stream);
+ return;
+ }
+
+ struct type *real_type = check_typedef (type);
+ if (TYPE_CODE (real_type) == TYPE_CODE_STRUCT)
{
CORE_ADDR *first_dont_print;
+ CORE_ADDR addr;
int i;
first_dont_print
= (CORE_ADDR *) obstack_base (&dont_print_statmem_obstack);
- i = (CORE_ADDR *) obstack_next_free (&dont_print_statmem_obstack)
- - first_dont_print;
+ i = obstack_object_size (&dont_print_statmem_obstack)
+ / sizeof (CORE_ADDR);
while (--i >= 0)
{
- if (VALUE_ADDRESS (val) == first_dont_print[i])
+ if (value_address (val) == first_dont_print[i])
{
- fputs_filtered ("<same as static member of an already"
- " seen type>",
- stream);
+ fputs_styled (_("<same as static member of an already"
+ " seen type>"),
+ metadata_style.style (), stream);
return;
}
}
- obstack_grow (&dont_print_statmem_obstack, (char *) &VALUE_ADDRESS (val),
+ addr = value_address (val);
+ obstack_grow (&dont_print_statmem_obstack, (char *) &addr,
sizeof (CORE_ADDR));
-
- CHECK_TYPEDEF (type);
- cp_print_value_fields (type, type, value_contents_all (val),
- value_embedded_offset (val), VALUE_ADDRESS (val),
- stream, format, recurse, pretty, NULL, 1);
+ cp_print_value_fields (type, value_enclosing_type (val),
+ value_embedded_offset (val), addr,
+ stream, recurse, val,
+ options, NULL, 1);
return;
}
- val_print (type, value_contents_all (val),
- value_embedded_offset (val), VALUE_ADDRESS (val),
- stream, format, 0, recurse, pretty, current_language);
-}
+ if (TYPE_CODE (real_type) == TYPE_CODE_ARRAY)
+ {
+ struct type **first_dont_print;
+ int i;
+ struct type *target_type = TYPE_TARGET_TYPE (type);
-/* Find the field in *DOMAIN, or its non-virtual base classes, with bit offset
- OFFSET. Set *DOMAIN to the containing type and *FIELDNO to the containing
- field number. If OFFSET is not exactly at the start of some field, set
- *DOMAIN to NULL. */
+ first_dont_print
+ = (struct type **) obstack_base (&dont_print_stat_array_obstack);
+ i = obstack_object_size (&dont_print_stat_array_obstack)
+ / sizeof (struct type *);
-void
-cp_find_class_member (struct type **domain_p, int *fieldno,
+ while (--i >= 0)
+ {
+ if (target_type == first_dont_print[i])
+ {
+ fputs_styled (_("<same as static member of an already"
+ " seen type>"),
+ metadata_style.style (), stream);
+ return;
+ }
+ }
+
+ obstack_grow (&dont_print_stat_array_obstack,
+ (char *) &target_type,
+ sizeof (struct type *));
+ }
+
+ opts = *options;
+ opts.deref_ref = 0;
+ val_print (type,
+ value_embedded_offset (val),
+ value_address (val),
+ stream, recurse, val,
+ &opts, current_language);
+}
+
+/* Find the field in *SELF, or its non-virtual base classes, with
+ bit offset OFFSET. Set *SELF to the containing type and *FIELDNO
+ to the containing field number. If OFFSET is not exactly at the
+ start of some field, set *SELF to NULL. */
+
+static void
+cp_find_class_member (struct type **self_p, int *fieldno,
LONGEST offset)
{
- struct type *domain;
+ struct type *self;
unsigned int i;
unsigned len;
- *domain_p = check_typedef (*domain_p);
- domain = *domain_p;
- len = TYPE_NFIELDS (domain);
+ *self_p = check_typedef (*self_p);
+ self = *self_p;
+ len = TYPE_NFIELDS (self);
- for (i = TYPE_N_BASECLASSES (domain); i < len; i++)
+ for (i = TYPE_N_BASECLASSES (self); i < len; i++)
{
- LONGEST bitpos = TYPE_FIELD_BITPOS (domain, i);
+ LONGEST bitpos = TYPE_FIELD_BITPOS (self, i);
QUIT;
if (offset == bitpos)
}
}
- for (i = 0; i < TYPE_N_BASECLASSES (domain); i++)
+ for (i = 0; i < TYPE_N_BASECLASSES (self); i++)
{
- LONGEST bitpos = TYPE_FIELD_BITPOS (domain, i);
- LONGEST bitsize = 8 * TYPE_LENGTH (TYPE_FIELD_TYPE (domain, i));
+ LONGEST bitpos = TYPE_FIELD_BITPOS (self, i);
+ LONGEST bitsize = 8 * TYPE_LENGTH (TYPE_FIELD_TYPE (self, i));
if (offset >= bitpos && offset < bitpos + bitsize)
{
- *domain_p = TYPE_FIELD_TYPE (domain, i);
- cp_find_class_member (domain_p, fieldno, offset - bitpos);
+ *self_p = TYPE_FIELD_TYPE (self, i);
+ cp_find_class_member (self_p, fieldno, offset - bitpos);
return;
}
}
- *domain_p = NULL;
+ *self_p = NULL;
}
void
-cp_print_class_member (const gdb_byte *valaddr, struct type *domain,
- struct ui_file *stream, char *prefix)
+cp_print_class_member (const gdb_byte *valaddr, struct type *type,
+ struct ui_file *stream, const char *prefix)
{
- /* VAL is a byte offset into the structure type DOMAIN.
+ enum bfd_endian byte_order = type_byte_order (type);
+
+ /* VAL is a byte offset into the structure type SELF_TYPE.
Find the name of the field for that offset and
print it. */
- unsigned int fieldno;
+ struct type *self_type = TYPE_SELF_TYPE (type);
+ LONGEST val;
+ int fieldno;
- LONGEST val = unpack_long (builtin_type_long, valaddr);
+ val = extract_signed_integer (valaddr,
+ TYPE_LENGTH (type),
+ byte_order);
/* Pointers to data members are usually byte offsets into an object.
Because a data member can have offset zero, and a NULL pointer to
return;
}
- cp_find_class_member (&domain, &fieldno, val << 3);
+ cp_find_class_member (&self_type, &fieldno, val << 3);
- if (domain != NULL)
+ if (self_type != NULL)
{
- char *name;
+ const char *name;
+
fputs_filtered (prefix, stream);
- name = type_name_no_tag (domain);
+ name = TYPE_NAME (self_type);
if (name)
fputs_filtered (name, stream);
else
- c_type_print_base (domain, stream, 0, 0);
+ c_type_print_base (self_type, stream, 0, 0, &type_print_raw_options);
fprintf_filtered (stream, "::");
- fputs_filtered (TYPE_FIELD_NAME (domain, fieldno), stream);
+ fputs_filtered (TYPE_FIELD_NAME (self_type, fieldno), stream);
}
else
fprintf_filtered (stream, "%ld", (long) val);
void
_initialize_cp_valprint (void)
{
- add_setshow_boolean_cmd ("static-members", class_support,
- &static_field_print, _("\
-Set printing of C++ static members."), _("\
-Show printing of C++ static members."), NULL,
- NULL,
- show_static_field_print,
- &setprintlist, &showprintlist);
- /* Turn on printing of static fields. */
- static_field_print = 1;
-
- add_setshow_boolean_cmd ("vtbl", class_support, &vtblprint, _("\
-Set printing of C++ virtual function tables."), _("\
-Show printing of C++ virtual function tables."), NULL,
- NULL,
- show_vtblprint,
- &setprintlist, &showprintlist);
-
- add_setshow_boolean_cmd ("object", class_support, &objectprint, _("\
-Set printing of object's derived type based on vtable info."), _("\
-Show printing of object's derived type based on vtable info."), NULL,
- NULL,
- show_objectprint,
- &setprintlist, &showprintlist);
-
- /* Give people the defaults which they are used to. */
- objectprint = 0;
- vtblprint = 0;
- obstack_begin (&dont_print_vb_obstack, 32 * sizeof (struct type *));
- obstack_specify_allocation (&dont_print_statmem_obstack,
- 32 * sizeof (CORE_ADDR), sizeof (CORE_ADDR),
- xmalloc, xfree);
+ obstack_begin (&dont_print_stat_array_obstack,
+ 32 * sizeof (struct type *));
+ obstack_begin (&dont_print_statmem_obstack,
+ 32 * sizeof (CORE_ADDR));
+ obstack_begin (&dont_print_vb_obstack,
+ 32 * sizeof (struct type *));
}
projects / deliverable / binutils-gdb.git / blobdiff