/* Multiple source language support for GDB.
- Copyright (C) 1991-2013 Free Software Foundation, Inc.
+ Copyright (C) 1991-2016 Free Software Foundation, Inc.
Contributed by the Department of Computer Science at the State University
of New York at Buffalo.
#include "defs.h"
#include <ctype.h>
-#include "gdb_string.h"
-
#include "symtab.h"
#include "gdbtypes.h"
#include "value.h"
#include "demangle.h"
#include "symfile.h"
#include "cp-support.h"
+#include "frame.h"
extern void _initialize_language (void);
static void unk_lang_error (char *);
-static int unk_lang_parser (void);
+static int unk_lang_parser (struct parser_state *);
static void show_check (char *, int);
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
{
printf_unfiltered (
"\"set check\" must be followed by the name of a check subcommand.\n");
- help_list (setchecklist, "set check ", -1, gdb_stdout);
+ help_list (setchecklist, "set check ", all_commands, gdb_stdout);
}
static void
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 *));
+ language_names = XRESIZEVEC (const char *, language_names,
+ languages_size + 1);
+
for (i = 0; i < languages_size; ++i)
language_names[i] = languages[i]->la_name;
language_names[i] = 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 ();
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,
/* Define the language that is no language. */
static int
-unk_lang_parser (void)
+unk_lang_parser (struct parser_state *ps)
{
return 1;
}
const struct language_defn unknown_language_defn =
{
"unknown",
+ "Unknown",
language_unknown,
range_check_off,
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 */
NULL, /* la_get_symbol_name_cmp */
iterate_over_symbols,
&default_varobj_ops,
+ NULL,
+ NULL,
LANG_MAGIC
};
const struct language_defn auto_language_defn =
{
"auto",
+ "Auto",
language_auto,
range_check_off,
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 */
NULL, /* la_get_symbol_name_cmp */
iterate_over_symbols,
&default_varobj_ops,
+ NULL,
+ NULL,
LANG_MAGIC
};
const struct language_defn local_language_defn =
{
"local",
+ "Local",
language_auto,
range_check_off,
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 */
NULL, /* la_get_symbol_name_cmp */
iterate_over_symbols,
&default_varobj_ops,
+ NULL,
+ NULL,
LANG_MAGIC
};
\f
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;
}
-struct type *
-language_lookup_primitive_type_by_name (const struct language_defn *la,
- struct gdbarch *gdbarch,
- const char *name)
+/* Helper function for primitive type lookup. */
+
+static struct type **
+language_lookup_primitive_type_1 (const struct language_arch_info *lai,
+ const char *name)
{
- struct language_gdbarch *ld = gdbarch_data (gdbarch,
- language_gdbarch_data);
- struct type *const *p;
+ struct type **p;
- for (p = ld->arch_info[la->la_language].primitive_type_vector;
- (*p) != NULL;
- p++)
+ for (p = lai->primitive_type_vector; (*p) != NULL; p++)
{
if (strcmp (TYPE_NAME (*p), name) == 0)
- return (*p);
+ return p;
}
- return (NULL);
+ 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 =
+ (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_as_symbol"
+ " (%s, %s, %s)",
+ la->la_name, host_address_to_string (gdbarch), name);
+ }
+
+ typep = language_lookup_primitive_type_1 (lai, name);
+ if (typep == NULL)
+ {
+ 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, " = %s\n", host_address_to_string (sym));
+ return sym;
}
/* Initialize the language routines. */
projects / deliverable / binutils-gdb.git / blobdiff