/* Generic code for supporting multiple C++ ABI's
- Copyright (C) 2001, 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 2001-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "value.h"
#include "cp-abi.h"
#include "command.h"
-#include "exceptions.h"
#include "gdbcmd.h"
#include "ui-out.h"
-#include "gdb_assert.h"
-#include "gdb_string.h"
-
static struct cp_abi_ops *find_cp_abi (const char *short_name);
static struct cp_abi_ops current_cp_abi = { "", NULL };
int
baseclass_offset (struct type *type, int index, const gdb_byte *valaddr,
- int embedded_offset, CORE_ADDR address,
+ LONGEST embedded_offset, CORE_ADDR address,
const struct value *val)
{
- volatile struct gdb_exception ex;
int res = 0;
gdb_assert (current_cp_abi.baseclass_offset != NULL);
- TRY_CATCH (ex, RETURN_MASK_ERROR)
+ try
{
res = (*current_cp_abi.baseclass_offset) (type, index, valaddr,
embedded_offset,
address, val);
}
+ catch (const gdb_exception_error &ex)
+ {
+ if (ex.error != NOT_AVAILABLE_ERROR)
+ throw;
+
+ throw_error (NOT_AVAILABLE_ERROR,
+ _("Cannot determine virtual baseclass offset "
+ "of incomplete object"));
+ }
- if (ex.reason < 0 && ex.error == NOT_AVAILABLE_ERROR)
- throw_error (NOT_AVAILABLE_ERROR,
- _("Cannot determine virtual baseclass offset "
- "of incomplete object"));
- else if (ex.reason < 0)
- throw_exception (ex);
- else
- return res;
+ return res;
}
struct value *
struct type *
value_rtti_type (struct value *v, int *full,
- int *top, int *using_enc)
+ LONGEST *top, int *using_enc)
{
struct type *ret = NULL;
- struct gdb_exception e;
- if ((current_cp_abi.rtti_type) == NULL)
+ if ((current_cp_abi.rtti_type) == NULL
+ || !HAVE_CPLUS_STRUCT (check_typedef (value_type (v))))
return NULL;
- TRY_CATCH (e, RETURN_MASK_ERROR)
+ try
{
ret = (*current_cp_abi.rtti_type) (v, full, top, using_enc);
}
- if (e.reason < 0)
- return NULL;
+ catch (const gdb_exception_error &e)
+ {
+ return NULL;
+ }
+
return ret;
}
return (*current_cp_abi.method_ptr_to_value) (this_p, method_ptr);
}
-int
+/* See cp-abi.h. */
+
+void
+cplus_print_vtable (struct value *value)
+{
+ if (current_cp_abi.print_vtable == NULL)
+ error (_("GDB cannot print the vtable on this target"));
+ (*current_cp_abi.print_vtable) (value);
+}
+
+/* See cp-abi.h. */
+
+struct value *
+cplus_typeid (struct value *value)
+{
+ if (current_cp_abi.get_typeid == NULL)
+ error (_("GDB cannot find the typeid on this target"));
+ return (*current_cp_abi.get_typeid) (value);
+}
+
+/* See cp-abi.h. */
+
+struct type *
+cplus_typeid_type (struct gdbarch *gdbarch)
+{
+ if (current_cp_abi.get_typeid_type == NULL)
+ error (_("GDB cannot find the type for 'typeid' on this target"));
+ return (*current_cp_abi.get_typeid_type) (gdbarch);
+}
+
+/* See cp-abi.h. */
+
+struct type *
+cplus_type_from_type_info (struct value *value)
+{
+ if (current_cp_abi.get_type_from_type_info == NULL)
+ error (_("GDB cannot find the type from a std::type_info on this target"));
+ return (*current_cp_abi.get_type_from_type_info) (value);
+}
+
+/* See cp-abi.h. */
+
+std::string
+cplus_typename_from_type_info (struct value *value)
+{
+ if (current_cp_abi.get_typename_from_type_info == NULL)
+ error (_("GDB cannot find the type name "
+ "from a std::type_info on this target"));
+ return (*current_cp_abi.get_typename_from_type_info) (value);
+}
+
+/* See cp-abi.h. */
+
+struct language_pass_by_ref_info
cp_pass_by_reference (struct type *type)
{
if ((current_cp_abi.pass_by_reference) == NULL)
- return 0;
+ return {};
return (*current_cp_abi.pass_by_reference) (type);
}
_("Cannot find C++ ABI \"%s\" to set it as auto default."),
short_name);
- if (auto_cp_abi.longname != NULL)
- xfree ((char *) auto_cp_abi.longname);
- if (auto_cp_abi.doc != NULL)
- xfree ((char *) auto_cp_abi.doc);
+ xfree ((char *) auto_cp_abi.longname);
+ xfree ((char *) auto_cp_abi.doc);
auto_cp_abi = *abi;
static void
list_cp_abis (int from_tty)
{
- struct cleanup *cleanup_chain;
+ struct ui_out *uiout = current_uiout;
int i;
- ui_out_text (uiout, "The available C++ ABIs are:\n");
- cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout,
- "cp-abi-list");
+ uiout->text ("The available C++ ABIs are:\n");
+ ui_out_emit_tuple tuple_emitter (uiout, "cp-abi-list");
for (i = 0; i < num_cp_abis; i++)
{
char pad[14];
int padcount;
- ui_out_text (uiout, " ");
- ui_out_field_string (uiout, "cp-abi", cp_abis[i]->shortname);
+ uiout->text (" ");
+ uiout->field_string ("cp-abi", cp_abis[i]->shortname);
padcount = 16 - 2 - strlen (cp_abis[i]->shortname);
pad[padcount] = 0;
while (padcount > 0)
pad[--padcount] = ' ';
- ui_out_text (uiout, pad);
+ uiout->text (pad);
- ui_out_field_string (uiout, "doc", cp_abis[i]->doc);
- ui_out_text (uiout, "\n");
+ uiout->field_string ("doc", cp_abis[i]->doc);
+ uiout->text ("\n");
}
- do_cleanups (cleanup_chain);
}
/* Set the current C++ ABI, or display the list of options if no
argument is given. */
static void
-set_cp_abi_cmd (char *args, int from_tty)
+set_cp_abi_cmd (const char *args, int from_tty)
{
if (args == NULL)
{
error (_("Could not find \"%s\" in ABI list"), args);
}
-/* Show the currently selected C++ ABI. */
+/* A completion function for "set cp-abi". */
static void
-show_cp_abi_cmd (char *args, int from_tty)
+cp_abi_completer (struct cmd_list_element *ignore,
+ completion_tracker &tracker,
+ const char *text, const char *word)
{
- ui_out_text (uiout, "The currently selected C++ ABI is \"");
+ static const char **cp_abi_names;
- ui_out_field_string (uiout, "cp-abi", current_cp_abi.shortname);
- ui_out_text (uiout, "\" (");
- ui_out_field_string (uiout, "longname", current_cp_abi.longname);
- ui_out_text (uiout, ").\n");
+ if (cp_abi_names == NULL)
+ {
+ int i;
+
+ cp_abi_names = XNEWVEC (const char *, num_cp_abis + 1);
+ for (i = 0; i < num_cp_abis; ++i)
+ cp_abi_names[i] = cp_abis[i]->shortname;
+ cp_abi_names[i] = NULL;
+ }
+
+ complete_on_enum (tracker, cp_abi_names, text, word);
}
-extern initialize_file_ftype _initialize_cp_abi; /* -Wmissing-prototypes */
+/* Show the currently selected C++ ABI. */
+
+static void
+show_cp_abi_cmd (const char *args, int from_tty)
+{
+ struct ui_out *uiout = current_uiout;
+
+ uiout->text ("The currently selected C++ ABI is \"");
+ uiout->field_string ("cp-abi", current_cp_abi.shortname);
+ uiout->text ("\" (");
+ uiout->field_string ("longname", current_cp_abi.longname);
+ uiout->text (").\n");
+}
+
+void _initialize_cp_abi ();
void
-_initialize_cp_abi (void)
+_initialize_cp_abi ()
{
+ struct cmd_list_element *c;
+
register_cp_abi (&auto_cp_abi);
switch_to_cp_abi ("auto");
- add_cmd ("cp-abi", class_obscure, set_cp_abi_cmd, _("\
+ c = add_cmd ("cp-abi", class_obscure, set_cp_abi_cmd, _("\
Set the ABI used for inspecting C++ objects.\n\
\"set cp-abi\" with no arguments will list the available ABIs."),
- &setlist);
+ &setlist);
+ set_cmd_completer (c, cp_abi_completer);
add_cmd ("cp-abi", class_obscure, show_cp_abi_cmd,
_("Show the ABI used for inspecting C++ objects."),
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