1 /* Internal header for GDB/Scheme code.
3 Copyright (C) 2014-2015 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 /* See README file in this directory for implementation notes, coding
21 conventions, et.al. */
23 #ifndef GDB_GUILE_INTERNAL_H
24 #define GDB_GUILE_INTERNAL_H
27 #include "extension-priv.h"
36 /* A function to pass to the safe-call routines to ignore things like
38 typedef int excp_matcher_func (SCM key
);
40 /* Scheme variables to define during initialization. */
46 const char *doc_string
;
49 /* End of scheme_variable table mark. */
51 #define END_VARIABLES { NULL, SCM_BOOL_F, NULL }
53 /* Scheme functions to define during initialization. */
62 const char *doc_string
;
65 /* End of scheme_function table mark. */
67 #define END_FUNCTIONS { NULL, 0, 0, 0, NULL, NULL }
69 /* Useful for defining a set of constants. */
75 } scheme_integer_constant
;
77 #define END_INTEGER_CONSTANTS { NULL, 0 }
79 /* Pass this instead of 0 to routines like SCM_ASSERT to indicate the value
80 is not a function argument. */
81 #define GDBSCM_ARG_NONE 0
83 /* Ensure new code doesn't accidentally try to use this. */
84 #undef scm_make_smob_type
85 #define scm_make_smob_type USE_gdbscm_make_smob_type_INSTEAD
87 /* They brought over () == #f from lisp.
88 Let's avoid that for now. */
92 #define scm_is_bool USE_gdbscm_is_bool_INSTEAD
93 #define scm_is_false USE_gdbscm_is_false_INSTEAD
94 #define scm_is_true USE_gdbscm_is_true_INSTEAD
95 #define gdbscm_is_bool(scm) \
96 (scm_is_eq ((scm), SCM_BOOL_F) || scm_is_eq ((scm), SCM_BOOL_T))
97 #define gdbscm_is_false(scm) scm_is_eq ((scm), SCM_BOOL_F)
98 #define gdbscm_is_true(scm) (!gdbscm_is_false (scm))
100 #ifndef HAVE_SCM_NEW_SMOB
102 /* Guile <= 2.0.5 did not provide this function, so provide it here. */
105 scm_new_smob (scm_t_bits tc
, scm_t_bits data
)
107 SCM_RETURN_NEWSMOB (tc
, data
);
112 /* Function name that is passed around in case an error needs to be reported.
113 __func is in C99, but we provide a wrapper "just in case",
114 and because FUNC_NAME is the canonical value used in guile sources.
115 IWBN to use the Scheme version of the name (e.g. foo-bar vs foo_bar),
116 but let's KISS for now. */
117 #define FUNC_NAME __func__
119 extern const char gdbscm_module_name
[];
120 extern const char gdbscm_init_module_name
[];
122 extern int gdb_scheme_initialized
;
124 extern int gdbscm_guile_major_version
;
125 extern int gdbscm_guile_minor_version
;
126 extern int gdbscm_guile_micro_version
;
128 extern const char gdbscm_print_excp_none
[];
129 extern const char gdbscm_print_excp_full
[];
130 extern const char gdbscm_print_excp_message
[];
131 extern const char *gdbscm_print_excp
;
133 extern SCM gdbscm_documentation_symbol
;
134 extern SCM gdbscm_invalid_object_error_symbol
;
136 extern SCM gdbscm_map_string
;
137 extern SCM gdbscm_array_string
;
138 extern SCM gdbscm_string_string
;
142 extern void gdbscm_define_variables (const scheme_variable
*, int is_public
);
144 extern void gdbscm_define_functions (const scheme_function
*, int is_public
);
146 extern void gdbscm_define_integer_constants (const scheme_integer_constant
*,
149 extern void gdbscm_printf (SCM port
, const char *format
, ...)
150 ATTRIBUTE_PRINTF (2, 3);
152 extern void gdbscm_debug_display (SCM obj
);
154 extern void gdbscm_debug_write (SCM obj
);
156 extern void gdbscm_parse_function_args (const char *function_name
,
157 int beginning_arg_pos
,
159 const char *format
, ...);
161 extern SCM
gdbscm_scm_from_longest (LONGEST l
);
163 extern LONGEST
gdbscm_scm_to_longest (SCM l
);
165 extern SCM
gdbscm_scm_from_ulongest (ULONGEST l
);
167 extern ULONGEST
gdbscm_scm_to_ulongest (SCM u
);
169 extern void gdbscm_dynwind_xfree (void *ptr
);
171 extern int gdbscm_is_procedure (SCM proc
);
173 extern char *gdbscm_gc_xstrdup (const char *);
175 extern const char * const *gdbscm_gc_dup_argv (char **argv
);
177 extern int gdbscm_guile_version_is_at_least (int major
, int minor
, int micro
);
179 /* GDB smobs, from scm-gsmob.c */
181 /* All gdb smobs must contain one of the following as the first member:
182 gdb_smob, chained_gdb_smob, or eqable_gdb_smob.
184 Chained GDB smobs should have chained_gdb_smob as their first member. The
185 next,prev members of chained_gdb_smob allow for chaining gsmobs together so
186 that, for example, when an objfile is deleted we can clean up all smobs that
189 Eq-able GDB smobs should have eqable_gdb_smob as their first member. The
190 containing_scm member of eqable_gdb_smob allows for returning the same gsmob
191 instead of creating a new one, allowing them to be eq?-able.
193 All other smobs should have gdb_smob as their first member.
194 FIXME: dje/2014-05-26: gdb_smob was useful during early development as a
195 "baseclass" for all gdb smobs. If it's still unused by gdb 8.0 delete it.
197 IMPORTANT: chained_gdb_smob and eqable_gdb-smob are "subclasses" of
198 gdb_smob. The layout of chained_gdb_smob,eqable_gdb_smob must match
199 gdb_smob as if it is a subclass. To that end we use macro GDB_SMOB_HEAD
202 #define GDB_SMOB_HEAD \
203 int empty_base_class;
210 typedef struct _chained_gdb_smob
214 struct _chained_gdb_smob
*prev
;
215 struct _chained_gdb_smob
*next
;
218 typedef struct _eqable_gdb_smob
222 /* The object we are contained in.
223 This can be used for several purposes.
224 This is used by the eq? machinery: We need to be able to see if we have
225 already created an object for a symbol, and if so use that SCM.
226 This may also be used to protect the smob from GC if there is
227 a reference to this smob from outside of GC space (i.e., from gdb).
228 This can also be used in place of chained_gdb_smob where we need to
229 keep track of objfile referencing objects. When the objfile is deleted
230 we need to invalidate the objects: we can do that using the same hashtab
231 used to record the smob for eq-ability. */
240 /* A predicate that returns non-zero if an object is a particular kind
242 typedef int (gsmob_pred_func
) (SCM
);
244 extern scm_t_bits
gdbscm_make_smob_type (const char *name
, size_t size
);
246 extern void gdbscm_init_gsmob (gdb_smob
*base
);
248 extern void gdbscm_init_chained_gsmob (chained_gdb_smob
*base
);
250 extern void gdbscm_init_eqable_gsmob (eqable_gdb_smob
*base
,
253 extern void gdbscm_add_objfile_ref (struct objfile
*objfile
,
254 const struct objfile_data
*data_key
,
255 chained_gdb_smob
*g_smob
);
257 extern void gdbscm_remove_objfile_ref (struct objfile
*objfile
,
258 const struct objfile_data
*data_key
,
259 chained_gdb_smob
*g_smob
);
261 extern htab_t
gdbscm_create_eqable_gsmob_ptr_map (htab_hash hash_fn
,
264 extern eqable_gdb_smob
**gdbscm_find_eqable_gsmob_ptr_slot
265 (htab_t htab
, eqable_gdb_smob
*base
);
267 extern void gdbscm_fill_eqable_gsmob_ptr_slot (eqable_gdb_smob
**slot
,
268 eqable_gdb_smob
*base
);
270 extern void gdbscm_clear_eqable_gsmob_ptr_slot (htab_t htab
,
271 eqable_gdb_smob
*base
);
273 /* Exceptions and calling out to Guile. */
275 /* scm-exception.c */
277 extern SCM
gdbscm_make_exception (SCM tag
, SCM args
);
279 extern int gdbscm_is_exception (SCM scm
);
281 extern SCM
gdbscm_exception_key (SCM excp
);
283 extern SCM
gdbscm_exception_args (SCM excp
);
285 extern SCM
gdbscm_make_exception_with_stack (SCM key
, SCM args
, SCM stack
);
287 extern SCM
gdbscm_make_error_scm (SCM key
, SCM subr
, SCM message
,
290 extern SCM
gdbscm_make_error (SCM key
, const char *subr
, const char *message
,
293 extern SCM
gdbscm_make_type_error (const char *subr
, int arg_pos
,
294 SCM bad_value
, const char *expected_type
);
296 extern SCM
gdbscm_make_invalid_object_error (const char *subr
, int arg_pos
,
297 SCM bad_value
, const char *error
);
299 extern void gdbscm_invalid_object_error (const char *subr
, int arg_pos
,
300 SCM bad_value
, const char *error
)
303 extern SCM
gdbscm_make_out_of_range_error (const char *subr
, int arg_pos
,
304 SCM bad_value
, const char *error
);
306 extern void gdbscm_out_of_range_error (const char *subr
, int arg_pos
,
307 SCM bad_value
, const char *error
)
310 extern SCM
gdbscm_make_misc_error (const char *subr
, int arg_pos
,
311 SCM bad_value
, const char *error
);
313 extern void gdbscm_misc_error (const char *subr
, int arg_pos
,
314 SCM bad_value
, const char *error
)
317 extern void gdbscm_throw (SCM exception
) ATTRIBUTE_NORETURN
;
319 extern SCM
gdbscm_scm_from_gdb_exception (struct gdb_exception exception
);
321 extern void gdbscm_throw_gdb_exception (struct gdb_exception exception
)
324 extern void gdbscm_print_exception_with_stack (SCM port
, SCM stack
,
327 extern void gdbscm_print_gdb_exception (SCM port
, SCM exception
);
329 extern char *gdbscm_exception_message_to_string (SCM exception
);
331 extern excp_matcher_func gdbscm_memory_error_p
;
333 extern excp_matcher_func gdbscm_user_error_p
;
335 extern SCM
gdbscm_make_memory_error (const char *subr
, const char *msg
,
338 extern void gdbscm_memory_error (const char *subr
, const char *msg
, SCM args
)
341 /* scm-safe-call.c */
343 extern void *gdbscm_with_guile (void *(*func
) (void *), void *data
);
345 extern SCM
gdbscm_call_guile (SCM (*func
) (void *), void *data
,
346 excp_matcher_func
*ok_excps
);
348 extern SCM
gdbscm_safe_call_0 (SCM proc
, excp_matcher_func
*ok_excps
);
350 extern SCM
gdbscm_safe_call_1 (SCM proc
, SCM arg0
,
351 excp_matcher_func
*ok_excps
);
353 extern SCM
gdbscm_safe_call_2 (SCM proc
, SCM arg0
, SCM arg1
,
354 excp_matcher_func
*ok_excps
);
356 extern SCM
gdbscm_safe_call_3 (SCM proc
, SCM arg0
, SCM arg1
, SCM arg2
,
357 excp_matcher_func
*ok_excps
);
359 extern SCM
gdbscm_safe_call_4 (SCM proc
, SCM arg0
, SCM arg1
, SCM arg2
,
361 excp_matcher_func
*ok_excps
);
363 extern SCM
gdbscm_safe_apply_1 (SCM proc
, SCM arg0
, SCM args
,
364 excp_matcher_func
*ok_excps
);
366 extern SCM
gdbscm_unsafe_call_1 (SCM proc
, SCM arg0
);
368 extern char *gdbscm_safe_eval_string (const char *string
, int display_result
);
370 extern char *gdbscm_safe_source_script (const char *filename
);
372 extern void gdbscm_enter_repl (void);
374 /* Interface to various GDB objects, in alphabetical order. */
378 typedef struct _arch_smob arch_smob
;
380 extern struct gdbarch
*arscm_get_gdbarch (arch_smob
*a_smob
);
382 extern arch_smob
*arscm_get_arch_smob_arg_unsafe (SCM arch_scm
, int arg_pos
,
383 const char *func_name
);
385 extern SCM
arscm_scm_from_arch (struct gdbarch
*gdbarch
);
389 extern SCM
bkscm_scm_from_block (const struct block
*block
,
390 struct objfile
*objfile
);
392 extern const struct block
*bkscm_scm_to_block
393 (SCM block_scm
, int arg_pos
, const char *func_name
, SCM
*excp
);
397 extern char *gdbscm_parse_command_name (const char *name
,
398 const char *func_name
, int arg_pos
,
399 struct cmd_list_element
***base_list
,
400 struct cmd_list_element
**start_list
);
402 extern int gdbscm_valid_command_class_p (int command_class
);
404 extern char *gdbscm_canonicalize_command_name (const char *name
,
405 int want_trailing_space
);
409 typedef struct _frame_smob frame_smob
;
411 extern int frscm_is_frame (SCM scm
);
413 extern frame_smob
*frscm_get_frame_smob_arg_unsafe (SCM frame_scm
, int arg_pos
,
414 const char *func_name
);
416 extern struct frame_info
*frscm_frame_smob_to_frame (frame_smob
*);
420 typedef struct _iterator_smob iterator_smob
;
422 extern SCM
itscm_iterator_smob_object (iterator_smob
*i_smob
);
424 extern SCM
itscm_iterator_smob_progress (iterator_smob
*i_smob
);
426 extern void itscm_set_iterator_smob_progress_x (iterator_smob
*i_smob
,
429 extern const char *itscm_iterator_smob_name (void);
431 extern SCM
gdbscm_make_iterator (SCM object
, SCM progress
, SCM next
);
433 extern int itscm_is_iterator (SCM scm
);
435 extern SCM
gdbscm_end_of_iteration (void);
437 extern int itscm_is_end_of_iteration (SCM obj
);
439 extern SCM
itscm_safe_call_next_x (SCM iter
, excp_matcher_func
*ok_excps
);
441 extern SCM
itscm_get_iterator_arg_unsafe (SCM self
, int arg_pos
,
442 const char *func_name
);
444 /* scm-lazy-string.c */
446 extern int lsscm_is_lazy_string (SCM scm
);
448 extern SCM
lsscm_make_lazy_string (CORE_ADDR address
, int length
,
449 const char *encoding
, struct type
*type
);
451 extern struct value
*lsscm_safe_lazy_string_to_value (SCM string
,
453 const char *func_name
,
456 extern void lsscm_val_print_lazy_string
457 (SCM string
, struct ui_file
*stream
,
458 const struct value_print_options
*options
);
462 typedef struct _objfile_smob objfile_smob
;
464 extern SCM
ofscm_objfile_smob_pretty_printers (objfile_smob
*o_smob
);
466 extern objfile_smob
*ofscm_objfile_smob_from_objfile (struct objfile
*objfile
);
468 extern SCM
ofscm_scm_from_objfile (struct objfile
*objfile
);
470 /* scm-progspace.c */
472 typedef struct _pspace_smob pspace_smob
;
474 extern SCM
psscm_pspace_smob_pretty_printers (const pspace_smob
*);
476 extern pspace_smob
*psscm_pspace_smob_from_pspace (struct program_space
*);
478 extern SCM
psscm_scm_from_pspace (struct program_space
*);
482 extern int gdbscm_scm_string_to_int (SCM string
);
484 extern char *gdbscm_scm_to_c_string (SCM string
);
486 extern SCM
gdbscm_scm_from_c_string (const char *string
);
488 extern SCM
gdbscm_scm_from_printf (const char *format
, ...)
489 ATTRIBUTE_PRINTF (1, 2);
491 extern char *gdbscm_scm_to_string (SCM string
, size_t *lenp
,
493 int strict
, SCM
*except_scmp
);
495 extern SCM
gdbscm_scm_from_string (const char *string
, size_t len
,
496 const char *charset
, int strict
);
498 extern char *gdbscm_scm_to_host_string (SCM string
, size_t *lenp
, SCM
*except
);
500 extern SCM
gdbscm_scm_from_host_string (const char *string
, size_t len
);
504 extern int syscm_is_symbol (SCM scm
);
506 extern SCM
syscm_scm_from_symbol (struct symbol
*symbol
);
508 extern struct symbol
*syscm_get_valid_symbol_arg_unsafe
509 (SCM self
, int arg_pos
, const char *func_name
);
513 extern SCM
stscm_scm_from_symtab (struct symtab
*symtab
);
515 extern SCM
stscm_scm_from_sal (struct symtab_and_line sal
);
519 typedef struct _type_smob type_smob
;
521 extern int tyscm_is_type (SCM scm
);
523 extern SCM
tyscm_scm_from_type (struct type
*type
);
525 extern type_smob
*tyscm_get_type_smob_arg_unsafe (SCM type_scm
, int arg_pos
,
526 const char *func_name
);
528 extern struct type
*tyscm_type_smob_type (type_smob
*t_smob
);
530 extern SCM
tyscm_scm_from_field (SCM type_scm
, int field_num
);
534 extern struct value
*vlscm_scm_to_value (SCM scm
);
536 extern int vlscm_is_value (SCM scm
);
538 extern SCM
vlscm_scm_from_value (struct value
*value
);
540 extern SCM
vlscm_scm_from_value_unsafe (struct value
*value
);
542 extern struct value
*vlscm_convert_typed_value_from_scheme
543 (const char *func_name
, int obj_arg_pos
, SCM obj
,
544 int type_arg_pos
, SCM type_scm
, struct type
*type
, SCM
*except_scmp
,
545 struct gdbarch
*gdbarch
, const struct language_defn
*language
);
547 extern struct value
*vlscm_convert_value_from_scheme
548 (const char *func_name
, int obj_arg_pos
, SCM obj
, SCM
*except_scmp
,
549 struct gdbarch
*gdbarch
, const struct language_defn
*language
);
551 /* stript_lang methods */
553 extern objfile_script_sourcer_func gdbscm_source_objfile_script
;
554 extern objfile_script_executor_func gdbscm_execute_objfile_script
;
556 extern int gdbscm_auto_load_enabled (const struct extension_language_defn
*);
558 extern void gdbscm_preserve_values
559 (const struct extension_language_defn
*,
560 struct objfile
*, htab_t copied_types
);
562 extern enum ext_lang_rc gdbscm_apply_val_pretty_printer
563 (const struct extension_language_defn
*,
564 struct type
*type
, const gdb_byte
*valaddr
,
565 int embedded_offset
, CORE_ADDR address
,
566 struct ui_file
*stream
, int recurse
,
567 const struct value
*val
,
568 const struct value_print_options
*options
,
569 const struct language_defn
*language
);
571 extern int gdbscm_breakpoint_has_cond (const struct extension_language_defn
*,
572 struct breakpoint
*b
);
574 extern enum ext_lang_bp_stop gdbscm_breakpoint_cond_says_stop
575 (const struct extension_language_defn
*, struct breakpoint
*b
);
577 /* Initializers for each piece of Scheme support, in alphabetical order. */
579 extern void gdbscm_initialize_arches (void);
580 extern void gdbscm_initialize_auto_load (void);
581 extern void gdbscm_initialize_blocks (void);
582 extern void gdbscm_initialize_breakpoints (void);
583 extern void gdbscm_initialize_commands (void);
584 extern void gdbscm_initialize_disasm (void);
585 extern void gdbscm_initialize_exceptions (void);
586 extern void gdbscm_initialize_frames (void);
587 extern void gdbscm_initialize_iterators (void);
588 extern void gdbscm_initialize_lazy_strings (void);
589 extern void gdbscm_initialize_math (void);
590 extern void gdbscm_initialize_objfiles (void);
591 extern void gdbscm_initialize_pretty_printers (void);
592 extern void gdbscm_initialize_parameters (void);
593 extern void gdbscm_initialize_ports (void);
594 extern void gdbscm_initialize_pspaces (void);
595 extern void gdbscm_initialize_smobs (void);
596 extern void gdbscm_initialize_strings (void);
597 extern void gdbscm_initialize_symbols (void);
598 extern void gdbscm_initialize_symtabs (void);
599 extern void gdbscm_initialize_types (void);
600 extern void gdbscm_initialize_values (void);
602 /* Use these after a TRY_CATCH to throw the appropriate Scheme exception
603 if a GDB error occurred. */
605 #define GDBSCM_HANDLE_GDB_EXCEPTION(exception) \
607 if (exception.reason < 0) \
609 gdbscm_throw_gdb_exception (exception); \
614 /* If cleanups are establish outside the TRY_CATCH block, use this version. */
616 #define GDBSCM_HANDLE_GDB_EXCEPTION_WITH_CLEANUPS(exception, cleanups) \
618 if (exception.reason < 0) \
620 do_cleanups (cleanups); \
621 gdbscm_throw_gdb_exception (exception); \
626 #endif /* GDB_GUILE_INTERNAL_H */