/* Multiple source language support for GDB.
- Copyright (C) 1991-2014 Free Software Foundation, Inc.
+ Copyright (C) 1991-2017 Free Software Foundation, Inc.
Contributed by the Department of Computer Science at the State University
of New York at Buffalo.
#include "varobj.h"
#include "target.h"
#include "parser-defs.h"
-#include "jv-lang.h"
#include "demangle.h"
#include "symfile.h"
#include "cp-support.h"
+#include "frame.h"
+#include "c-lang.h"
extern void _initialize_language (void);
-static void unk_lang_error (char *);
+static void unk_lang_error (const char *);
static int unk_lang_parser (struct parser_state *);
show_language_command (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
- enum language flang; /* The language of the current frame. */
+ enum language flang; /* The language of the frame. */
if (language_mode == language_mode_auto)
fprintf_filtered (gdb_stdout,
_("The current source language is \"%s\".\n"),
current_language->la_name);
- flang = get_frame_language ();
- if (flang != language_unknown &&
- language_mode == language_mode_manual &&
- current_language->la_language != flang)
- printf_filtered ("%s\n", lang_frame_mismatch_warn);
+ if (has_stack_frames ())
+ {
+ struct frame_info *frame;
+
+ frame = get_selected_frame (NULL);
+ flang = get_frame_language (frame);
+ if (flang != language_unknown
+ && language_mode == language_mode_manual
+ && current_language->la_language != flang)
+ printf_filtered ("%s\n", lang_frame_mismatch_warn);
+ }
}
/* Set command. Change the current working language. */
set_language_command (char *ignore, int from_tty, struct cmd_list_element *c)
{
int i;
- enum language flang;
+ enum language flang = language_unknown;
/* Search the list of languages for a match. */
for (i = 0; i < languages_size; i++)
/* Enter auto mode. Set to the current frame's language, if
known, or fallback to the initial language. */
language_mode = language_mode_auto;
- flang = get_frame_language ();
+ TRY
+ {
+ struct frame_info *frame;
+
+ frame = get_selected_frame (NULL);
+ flang = get_frame_language (frame);
+ }
+ CATCH (ex, RETURN_MASK_ERROR)
+ {
+ flang = language_unknown;
+ }
+ END_CATCH
+
if (flang != language_unknown)
set_language (flang);
else
{
if (range_mode == range_mode_auto)
{
- char *tmp;
+ const char *tmp;
switch (range_check)
{
{
if (case_mode == case_mode_auto)
{
- char *tmp = NULL;
+ const char *tmp = NULL;
switch (case_sensitivity)
{
int
pointer_type (struct type *type)
{
- return TYPE_CODE (type) == TYPE_CODE_PTR ||
- TYPE_CODE (type) == TYPE_CODE_REF;
+ return TYPE_CODE (type) == TYPE_CODE_PTR || TYPE_IS_REFERENCE (type);
}
\f
/* For the "set language" command. */
static const char **language_names = NULL;
/* For the "help set language" command. */
- char *language_set_doc = NULL;
-
- int i;
- struct ui_file *tmp_stream;
if (lang->la_magic != LANG_MAGIC)
{
if (!languages)
{
languages_allocsize = DEFAULT_ALLOCSIZE;
- languages = (const struct language_defn **) xmalloc
- (languages_allocsize * sizeof (*languages));
+ languages = XNEWVEC (const struct language_defn *, languages_allocsize);
}
if (languages_size >= languages_allocsize)
{
/* Build the language names array, to be used as enumeration in the
set language" enum command. */
- language_names = xrealloc (language_names,
- (languages_size + 1) * sizeof (const char *));
- for (i = 0; i < languages_size; ++i)
+ language_names = XRESIZEVEC (const char *, language_names,
+ languages_size + 1);
+
+ for (int i = 0; i < languages_size; ++i)
language_names[i] = languages[i]->la_name;
- language_names[i] = NULL;
+ language_names[languages_size] = NULL;
+
+ /* Add the filename extensions. */
+ if (lang->la_filename_extensions != NULL)
+ {
+ int i;
+
+ for (i = 0; lang->la_filename_extensions[i] != NULL; ++i)
+ add_filename_language (lang->la_filename_extensions[i],
+ lang->la_language);
+ }
/* Build the "help set language" docs. */
- tmp_stream = mem_fileopen ();
+ string_file doc;
- fprintf_unfiltered (tmp_stream,
- _("Set the current source language.\n"
- "The currently understood settings are:\n\nlocal or "
- "auto Automatic setting based on source file\n"));
+ doc.printf (_("Set the current source language.\n"
+ "The currently understood settings are:\n\nlocal or "
+ "auto Automatic setting based on source file\n"));
- for (i = 0; i < languages_size; ++i)
+ for (int i = 0; i < languages_size; ++i)
{
/* Already dealt with these above. */
if (languages[i]->la_language == language_unknown
|| languages[i]->la_language == language_auto)
continue;
- /* FIXME: i18n: for now assume that the human-readable name
- is just a capitalization of the internal name. */
- fprintf_unfiltered (tmp_stream, "%-16s Use the %c%s language\n",
- languages[i]->la_name,
- /* Capitalize first letter of language
- name. */
- toupper (languages[i]->la_name[0]),
- languages[i]->la_name + 1);
+ /* FIXME: i18n: for now assume that the human-readable name is
+ just a capitalization of the internal name. */
+ doc.printf ("%-16s Use the %c%s language\n",
+ languages[i]->la_name,
+ /* Capitalize first letter of language name. */
+ toupper (languages[i]->la_name[0]),
+ languages[i]->la_name + 1);
}
- language_set_doc = ui_file_xstrdup (tmp_stream, NULL);
- ui_file_delete (tmp_stream);
-
add_setshow_enum_cmd ("language", class_support,
(const char **) language_names,
&language,
- language_set_doc,
+ doc.c_str (),
_("Show the current source language."),
NULL, set_language_command,
show_language_command,
&setlist, &showlist);
-
- xfree (language_set_doc);
}
/* Iterate through all registered languages looking for and calling
return NULL;
}
+/* See langauge.h. */
+
+int
+language_sniff_from_mangled_name (const struct language_defn *lang,
+ const char *mangled, char **demangled)
+{
+ gdb_assert (lang != NULL);
+
+ if (lang->la_sniff_from_mangled_name == NULL)
+ {
+ *demangled = NULL;
+ return 0;
+ }
+
+ return lang->la_sniff_from_mangled_name (mangled, demangled);
+}
+
/* Return class name from physname or NULL. */
char *
language_class_name_from_physname (const struct language_defn *lang,
delimiting words. This is a reasonable default value that
most languages should be able to use. */
-char *
+const char *
default_word_break_characters (void)
{
return " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-";
}
static void
-unk_lang_error (char *msg)
+unk_lang_error (const char *msg)
{
error (_("Attempted to parse an expression with unknown language"));
}
}
static void
-unk_lang_val_print (struct type *type, const gdb_byte *valaddr,
+unk_lang_val_print (struct type *type,
int embedded_offset, CORE_ADDR address,
struct ui_file *stream, int recurse,
- const struct value *val,
+ struct value *val,
const struct value_print_options *options)
{
error (_("internal error - unimplemented "
case_sensitive_on,
array_row_major,
macro_expansion_no,
+ NULL,
&exp_descriptor_standard,
unk_lang_parser,
unk_lang_error,
basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
basic_lookup_transparent_type,/* lookup_transparent_type */
unk_lang_demangle, /* Language specific symbol demangler */
+ NULL,
unk_lang_class_name, /* Language specific
class_name_from_physname */
unk_op_print_tab, /* expression operators for printing */
1, /* c-style arrays */
0, /* String lower bound */
default_word_break_characters,
- default_make_symbol_completion_list,
+ default_collect_symbol_completion_matches,
unknown_language_arch_info, /* la_language_arch_info. */
default_print_array_index,
default_pass_by_reference,
default_get_string,
+ c_watch_location_expression,
NULL, /* la_get_symbol_name_cmp */
iterate_over_symbols,
&default_varobj_ops,
case_sensitive_on,
array_row_major,
macro_expansion_no,
+ NULL,
&exp_descriptor_standard,
unk_lang_parser,
unk_lang_error,
basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
basic_lookup_transparent_type,/* lookup_transparent_type */
unk_lang_demangle, /* Language specific symbol demangler */
+ NULL,
unk_lang_class_name, /* Language specific
class_name_from_physname */
unk_op_print_tab, /* expression operators for printing */
1, /* c-style arrays */
0, /* String lower bound */
default_word_break_characters,
- default_make_symbol_completion_list,
+ default_collect_symbol_completion_matches,
unknown_language_arch_info, /* la_language_arch_info. */
default_print_array_index,
default_pass_by_reference,
default_get_string,
+ c_watch_location_expression,
NULL, /* la_get_symbol_name_cmp */
iterate_over_symbols,
&default_varobj_ops,
case_sensitive_on,
array_row_major,
macro_expansion_no,
+ NULL,
&exp_descriptor_standard,
unk_lang_parser,
unk_lang_error,
basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
basic_lookup_transparent_type,/* lookup_transparent_type */
unk_lang_demangle, /* Language specific symbol demangler */
+ NULL,
unk_lang_class_name, /* Language specific
class_name_from_physname */
unk_op_print_tab, /* expression operators for printing */
1, /* c-style arrays */
0, /* String lower bound */
default_word_break_characters,
- default_make_symbol_completion_list,
+ default_collect_symbol_completion_matches,
unknown_language_arch_info, /* la_language_arch_info. */
default_print_array_index,
default_pass_by_reference,
default_get_string,
+ c_watch_location_expression,
NULL, /* la_get_symbol_name_cmp */
iterate_over_symbols,
&default_varobj_ops,
language_string_char_type (const struct language_defn *la,
struct gdbarch *gdbarch)
{
- struct language_gdbarch *ld = gdbarch_data (gdbarch,
- language_gdbarch_data);
+ struct language_gdbarch *ld
+ = (struct language_gdbarch *) gdbarch_data (gdbarch, language_gdbarch_data);
return ld->arch_info[la->la_language].string_char_type;
}
language_bool_type (const struct language_defn *la,
struct gdbarch *gdbarch)
{
- struct language_gdbarch *ld = gdbarch_data (gdbarch,
- language_gdbarch_data);
+ struct language_gdbarch *ld
+ = (struct language_gdbarch *) gdbarch_data (gdbarch, language_gdbarch_data);
if (ld->arch_info[la->la_language].bool_type_symbol)
{
struct symbol *sym;
sym = lookup_symbol (ld->arch_info[la->la_language].bool_type_symbol,
- NULL, VAR_DOMAIN, NULL);
+ NULL, VAR_DOMAIN, NULL).symbol;
if (sym)
{
struct type *type = SYMBOL_TYPE (sym);
return ld->arch_info[la->la_language].bool_type_default;
}
+/* Helper function for primitive type lookup. */
+
+static struct type **
+language_lookup_primitive_type_1 (const struct language_arch_info *lai,
+ const char *name)
+{
+ struct type **p;
+
+ for (p = lai->primitive_type_vector; (*p) != NULL; p++)
+ {
+ if (strcmp (TYPE_NAME (*p), name) == 0)
+ return p;
+ }
+ return NULL;
+}
+
+/* See language.h. */
+
struct type *
language_lookup_primitive_type (const struct language_defn *la,
struct gdbarch *gdbarch,
const char *name)
{
- struct language_gdbarch *ld = gdbarch_data (gdbarch,
- language_gdbarch_data);
- struct type *const *p;
+ struct language_gdbarch *ld =
+ (struct language_gdbarch *) gdbarch_data (gdbarch, language_gdbarch_data);
+ struct type **typep;
+
+ typep = language_lookup_primitive_type_1 (&ld->arch_info[la->la_language],
+ name);
+ if (typep == NULL)
+ return NULL;
+ return *typep;
+}
+
+/* Helper function for type lookup as a symbol.
+ Create the symbol corresponding to type TYPE in language LANG. */
+
+static struct symbol *
+language_alloc_type_symbol (enum language lang, struct type *type)
+{
+ struct symbol *symbol;
+ struct gdbarch *gdbarch;
+
+ gdb_assert (!TYPE_OBJFILE_OWNED (type));
+
+ gdbarch = TYPE_OWNER (type).gdbarch;
+ symbol = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct symbol);
+
+ symbol->ginfo.name = TYPE_NAME (type);
+ symbol->ginfo.language = lang;
+ symbol->owner.arch = gdbarch;
+ SYMBOL_OBJFILE_OWNED (symbol) = 0;
+ SYMBOL_TYPE (symbol) = type;
+ SYMBOL_DOMAIN (symbol) = VAR_DOMAIN;
+ SYMBOL_ACLASS_INDEX (symbol) = LOC_TYPEDEF;
+
+ return symbol;
+}
+
+/* Initialize the primitive type symbols of language LD.
+ The primitive type vector must have already been initialized. */
+
+static void
+language_init_primitive_type_symbols (struct language_arch_info *lai,
+ const struct language_defn *la,
+ struct gdbarch *gdbarch)
+{
+ int n;
+
+ gdb_assert (lai->primitive_type_vector != NULL);
+
+ for (n = 0; lai->primitive_type_vector[n] != NULL; ++n)
+ continue;
+
+ lai->primitive_type_symbols
+ = GDBARCH_OBSTACK_CALLOC (gdbarch, n + 1, struct symbol *);
+
+ for (n = 0; lai->primitive_type_vector[n] != NULL; ++n)
+ {
+ lai->primitive_type_symbols[n]
+ = language_alloc_type_symbol (la->la_language,
+ lai->primitive_type_vector[n]);
+ }
+
+ /* Note: The result of symbol lookup is normally a symbol *and* the block
+ it was found in. Builtin types don't live in blocks. We *could* give
+ them one, but there is no current need so to keep things simple symbol
+ lookup is extended to allow for BLOCK_FOUND to be NULL. */
+}
+
+/* See language.h. */
+
+struct symbol *
+language_lookup_primitive_type_as_symbol (const struct language_defn *la,
+ struct gdbarch *gdbarch,
+ const char *name)
+{
+ struct language_gdbarch *ld
+ = (struct language_gdbarch *) gdbarch_data (gdbarch, language_gdbarch_data);
+ struct language_arch_info *lai = &ld->arch_info[la->la_language];
+ struct type **typep;
+ struct symbol *sym;
if (symbol_lookup_debug)
{
fprintf_unfiltered (gdb_stdlog,
- "language_lookup_primitive_type (%s, %s, %s)",
+ "language_lookup_primitive_type_as_symbol"
+ " (%s, %s, %s)",
la->la_name, host_address_to_string (gdbarch), name);
}
- for (p = ld->arch_info[la->la_language].primitive_type_vector;
- (*p) != NULL;
- p++)
+ typep = language_lookup_primitive_type_1 (lai, name);
+ if (typep == NULL)
{
- if (strcmp (TYPE_NAME (*p), name) == 0)
- {
- if (symbol_lookup_debug)
- {
- fprintf_unfiltered (gdb_stdlog, " = %s\n",
- host_address_to_string (*p));
- }
- return (*p);
- }
+ if (symbol_lookup_debug)
+ fprintf_unfiltered (gdb_stdlog, " = NULL\n");
+ return NULL;
}
+ /* The set of symbols is lazily initialized. */
+ if (lai->primitive_type_symbols == NULL)
+ language_init_primitive_type_symbols (lai, la, gdbarch);
+
+ sym = lai->primitive_type_symbols[typep - lai->primitive_type_vector];
+
if (symbol_lookup_debug)
- fprintf_unfiltered (gdb_stdlog, " = NULL\n");
- return (NULL);
+ fprintf_unfiltered (gdb_stdlog, " = %s\n", host_address_to_string (sym));
+ return sym;
}
/* Initialize the language routines. */
projects / deliverable / binutils-gdb.git / blobdiff