mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-30 21:44:19 +08:00
268 lines
8.4 KiB
C
268 lines
8.4 KiB
C
/* Interface between gdb and its extension languages.
|
||
|
||
Copyright (C) 2014-2016 Free Software Foundation, Inc.
|
||
|
||
This file is part of GDB.
|
||
|
||
This program is free software; you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 3 of the License, or
|
||
(at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
||
|
||
#ifndef EXTENSION_H
|
||
#define EXTENSION_H
|
||
|
||
#include "mi/mi-cmds.h" /* For PRINT_NO_VALUES, etc. */
|
||
#include "common/vec.h"
|
||
|
||
struct breakpoint;
|
||
struct command_line;
|
||
struct frame_info;
|
||
struct language_defn;
|
||
struct objfile;
|
||
struct extension_language_defn;
|
||
struct type;
|
||
struct ui_file;
|
||
struct ui_out;
|
||
struct value;
|
||
struct value_print_options;
|
||
|
||
/* A function to load and process a script file.
|
||
The file has been opened and is ready to be read from the beginning.
|
||
Any exceptions are not caught, and are passed to the caller. */
|
||
typedef void script_sourcer_func (const struct extension_language_defn *,
|
||
FILE *stream, const char *filename);
|
||
|
||
/* A function to load and process a script for an objfile.
|
||
The file has been opened and is ready to be read from the beginning.
|
||
Any exceptions are not caught, and are passed to the caller. */
|
||
typedef void objfile_script_sourcer_func
|
||
(const struct extension_language_defn *,
|
||
struct objfile *, FILE *stream, const char *filename);
|
||
|
||
/* A function to execute a script for an objfile.
|
||
Any exceptions are not caught, and are passed to the caller. */
|
||
typedef void objfile_script_executor_func
|
||
(const struct extension_language_defn *,
|
||
struct objfile *, const char *name, const char *script);
|
||
|
||
/* Enum of each extension(/scripting) language. */
|
||
|
||
enum extension_language
|
||
{
|
||
EXT_LANG_NONE,
|
||
EXT_LANG_GDB,
|
||
EXT_LANG_PYTHON,
|
||
EXT_LANG_GUILE
|
||
};
|
||
|
||
/* Extension language frame-filter status return values. */
|
||
|
||
enum ext_lang_bt_status
|
||
{
|
||
/* Return when an error has occurred in processing frame filters,
|
||
or when printing the stack. */
|
||
EXT_LANG_BT_ERROR = -1,
|
||
|
||
/* Return from internal routines to indicate that the function
|
||
succeeded. */
|
||
EXT_LANG_BT_OK = 1,
|
||
|
||
/* Return when the frame filter process is complete, and all
|
||
operations have succeeded. */
|
||
EXT_LANG_BT_COMPLETED = 2,
|
||
|
||
/* Return when the frame filter process is complete, but there
|
||
were no filter registered and enabled to process. */
|
||
EXT_LANG_BT_NO_FILTERS = 3
|
||
};
|
||
|
||
/* Flags to pass to apply_extlang_frame_filter. */
|
||
|
||
enum frame_filter_flags
|
||
{
|
||
/* Set this flag if frame level is to be printed. */
|
||
PRINT_LEVEL = 1,
|
||
|
||
/* Set this flag if frame information is to be printed. */
|
||
PRINT_FRAME_INFO = 2,
|
||
|
||
/* Set this flag if frame arguments are to be printed. */
|
||
PRINT_ARGS = 4,
|
||
|
||
/* Set this flag if frame locals are to be printed. */
|
||
PRINT_LOCALS = 8,
|
||
};
|
||
|
||
/* A choice of the different frame argument printing strategies that
|
||
can occur in different cases of frame filter instantiation. */
|
||
|
||
enum ext_lang_frame_args
|
||
{
|
||
/* Print no values for arguments when invoked from the MI. */
|
||
NO_VALUES = PRINT_NO_VALUES,
|
||
|
||
MI_PRINT_ALL_VALUES = PRINT_ALL_VALUES,
|
||
|
||
/* Print only simple values (what MI defines as "simple") for
|
||
arguments when invoked from the MI. */
|
||
MI_PRINT_SIMPLE_VALUES = PRINT_SIMPLE_VALUES,
|
||
|
||
/* Print only scalar values for arguments when invoked from the CLI. */
|
||
CLI_SCALAR_VALUES,
|
||
|
||
/* Print all values for arguments when invoked from the CLI. */
|
||
CLI_ALL_VALUES
|
||
};
|
||
|
||
/* The possible results of
|
||
extension_language_ops.breakpoint_cond_says_stop. */
|
||
|
||
enum ext_lang_bp_stop
|
||
{
|
||
/* No "stop" condition is set. */
|
||
EXT_LANG_BP_STOP_UNSET,
|
||
|
||
/* A "stop" condition is set, and it says "don't stop". */
|
||
EXT_LANG_BP_STOP_NO,
|
||
|
||
/* A "stop" condition is set, and it says "stop". */
|
||
EXT_LANG_BP_STOP_YES
|
||
};
|
||
|
||
/* Table of type printers associated with the global typedef table. */
|
||
|
||
struct ext_lang_type_printers
|
||
{
|
||
/* Type-printers from Python. */
|
||
void *py_type_printers;
|
||
};
|
||
|
||
/* A type which holds its extension language specific xmethod worker data. */
|
||
|
||
struct xmethod_worker
|
||
{
|
||
/* The language the xmethod worker is implemented in. */
|
||
const struct extension_language_defn *extlang;
|
||
|
||
/* The extension language specific data for this xmethod worker. */
|
||
void *data;
|
||
|
||
/* The TYPE_CODE_XMETHOD value corresponding to this worker.
|
||
Always use value_of_xmethod to access it. */
|
||
struct value *value;
|
||
};
|
||
|
||
typedef struct xmethod_worker *xmethod_worker_ptr;
|
||
DEF_VEC_P (xmethod_worker_ptr);
|
||
typedef VEC (xmethod_worker_ptr) xmethod_worker_vec;
|
||
|
||
|
||
/* The interface for gdb's own extension(/scripting) language. */
|
||
extern const struct extension_language_defn extension_language_gdb;
|
||
|
||
extern const struct extension_language_defn *get_ext_lang_defn
|
||
(enum extension_language lang);
|
||
|
||
extern const struct extension_language_defn *get_ext_lang_of_file
|
||
(const char *file);
|
||
|
||
extern int ext_lang_present_p (const struct extension_language_defn *);
|
||
|
||
extern int ext_lang_initialized_p (const struct extension_language_defn *);
|
||
|
||
extern void throw_ext_lang_unsupported
|
||
(const struct extension_language_defn *);
|
||
|
||
/* Accessors for "public" attributes of the extension language definition. */
|
||
|
||
extern enum extension_language ext_lang_kind
|
||
(const struct extension_language_defn *);
|
||
|
||
extern const char *ext_lang_name (const struct extension_language_defn *);
|
||
|
||
extern const char *ext_lang_capitalized_name
|
||
(const struct extension_language_defn *);
|
||
|
||
extern const char *ext_lang_suffix (const struct extension_language_defn *);
|
||
|
||
extern const char *ext_lang_auto_load_suffix
|
||
(const struct extension_language_defn *);
|
||
|
||
extern script_sourcer_func *ext_lang_script_sourcer
|
||
(const struct extension_language_defn *);
|
||
|
||
extern objfile_script_sourcer_func *ext_lang_objfile_script_sourcer
|
||
(const struct extension_language_defn *);
|
||
|
||
extern objfile_script_executor_func *ext_lang_objfile_script_executor
|
||
(const struct extension_language_defn *);
|
||
|
||
extern int ext_lang_auto_load_enabled (const struct extension_language_defn *);
|
||
|
||
/* Wrappers for each extension language API function that iterate over all
|
||
extension languages. */
|
||
|
||
extern void finish_ext_lang_initialization (void);
|
||
|
||
extern void eval_ext_lang_from_control_command (struct command_line *cmd);
|
||
|
||
extern void auto_load_ext_lang_scripts_for_objfile (struct objfile *);
|
||
|
||
extern struct ext_lang_type_printers *start_ext_lang_type_printers (void);
|
||
|
||
extern char *apply_ext_lang_type_printers (struct ext_lang_type_printers *,
|
||
struct type *);
|
||
|
||
extern void free_ext_lang_type_printers (struct ext_lang_type_printers *);
|
||
|
||
extern int apply_ext_lang_val_pretty_printer
|
||
(struct type *type, const gdb_byte *valaddr,
|
||
int embedded_offset, CORE_ADDR address,
|
||
struct ui_file *stream, int recurse,
|
||
const struct value *val, const struct value_print_options *options,
|
||
const struct language_defn *language);
|
||
|
||
extern enum ext_lang_bt_status apply_ext_lang_frame_filter
|
||
(struct frame_info *frame, int flags, enum ext_lang_frame_args args_type,
|
||
struct ui_out *out, int frame_low, int frame_high);
|
||
|
||
extern void preserve_ext_lang_values (struct objfile *, htab_t copied_types);
|
||
|
||
extern const struct extension_language_defn *get_breakpoint_cond_ext_lang
|
||
(struct breakpoint *b, enum extension_language skip_lang);
|
||
|
||
extern int breakpoint_ext_lang_cond_says_stop (struct breakpoint *);
|
||
|
||
extern struct value *invoke_xmethod (struct xmethod_worker *,
|
||
struct value *,
|
||
struct value **, int nargs);
|
||
|
||
extern struct xmethod_worker *clone_xmethod_worker (struct xmethod_worker *);
|
||
|
||
extern struct xmethod_worker *new_xmethod_worker
|
||
(const struct extension_language_defn *extlang, void *data);
|
||
|
||
extern void free_xmethod_worker (struct xmethod_worker *);
|
||
|
||
extern void free_xmethod_worker_vec (void *vec);
|
||
|
||
extern xmethod_worker_vec *get_matching_xmethod_workers
|
||
(struct type *, const char *);
|
||
|
||
extern struct type **get_xmethod_arg_types (struct xmethod_worker *, int *);
|
||
|
||
extern struct type *get_xmethod_result_type (struct xmethod_worker *,
|
||
struct value *object,
|
||
struct value **args, int nargs);
|
||
|
||
#endif /* EXTENSION_H */
|