2 * Copyright (C) 2006 Dan Carpenter.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, see http://www.gnu.org/copyleft/gpl.txt
29 #include "expression.h"
36 unsigned long long uvalue
;
44 #define STATE(_x) static struct smatch_state _x = { .name = #_x }
45 extern struct smatch_state undefined
;
46 extern struct smatch_state ghost
;
47 extern struct smatch_state merged
;
48 extern struct smatch_state true_state
;
49 extern struct smatch_state false_state
;
50 DECLARE_ALLOCATOR(smatch_state
);
52 static inline void *INT_PTR(int i
)
54 return (void *)(long)i
;
57 static inline int PTR_INT(void *p
)
67 DECLARE_ALLOCATOR(tracker
);
68 DECLARE_PTR_LIST(tracker_list
, struct tracker
);
70 /* The first 3 struct members must match struct tracker */
75 unsigned short merged
:1;
76 unsigned short implied
:1;
77 unsigned int nr_children
;
79 struct smatch_state
*state
;
81 struct sm_state
*left
;
82 struct sm_state
*right
;
83 struct state_list
*possible
;
90 DECLARE_ALLOCATOR(var_sym
);
91 DECLARE_PTR_LIST(var_sym_list
, struct var_sym
);
102 GLOBAL_ASSIGNMENT_HOOK
,
107 WHOLE_CONDITION_HOOK
,
109 CALL_HOOK_AFTER_INLINE
,
110 FUNCTION_CALL_HOOK_AFTER
,
111 CALL_ASSIGNMENT_HOOK
,
112 MACRO_ASSIGNMENT_HOOK
,
136 void add_hook(void *func
, enum hook_type type
);
137 typedef struct smatch_state
*(merge_func_t
)(struct smatch_state
*s1
, struct smatch_state
*s2
);
138 typedef struct smatch_state
*(unmatched_func_t
)(struct sm_state
*state
);
139 void add_merge_hook(int client_id
, merge_func_t
*func
);
140 void add_unmatched_state_hook(int client_id
, unmatched_func_t
*func
);
141 void add_pre_merge_hook(int client_id
, void (*hook
)(struct sm_state
*sm
));
142 typedef void (scope_hook
)(void *data
);
143 void add_scope_hook(scope_hook
*hook
, void *data
);
144 typedef void (func_hook
)(const char *fn
, struct expression
*expr
, void *data
);
145 typedef void (implication_hook
)(const char *fn
, struct expression
*call_expr
,
146 struct expression
*assign_expr
, void *data
);
147 typedef void (return_implies_hook
)(struct expression
*call_expr
,
148 int param
, char *key
, char *value
);
149 typedef int (implied_return_hook
)(struct expression
*call_expr
, void *info
, struct range_list
**rl
);
150 void add_function_hook(const char *look_for
, func_hook
*call_back
, void *data
);
152 void add_function_assign_hook(const char *look_for
, func_hook
*call_back
,
154 void add_implied_return_hook(const char *look_for
,
155 implied_return_hook
*call_back
,
157 void add_macro_assign_hook(const char *look_for
, func_hook
*call_back
,
159 void add_macro_assign_hook_extra(const char *look_for
, func_hook
*call_back
,
161 void return_implies_state(const char *look_for
, long long start
, long long end
,
162 implication_hook
*call_back
, void *info
);
163 void select_return_states_hook(int type
, return_implies_hook
*callback
);
164 void select_return_states_before(void (*fn
)(void));
165 void select_return_states_after(void (*fn
)(void));
166 int get_implied_return(struct expression
*expr
, struct range_list
**rl
);
167 void allocate_hook_memory(void);
169 typedef void (modification_hook
)(struct sm_state
*sm
, struct expression
*mod_expr
);
170 void add_modification_hook(int owner
, modification_hook
*call_back
);
171 void add_indirect_modification_hook(int owner
, modification_hook
*call_back
);
173 int outside_of_function(void);
174 const char *get_filename(void);
175 const char *get_base_file(void);
176 char *get_function(void);
177 int get_lineno(void);
178 extern int final_pass
;
179 extern struct symbol
*cur_func_sym
;
180 extern int option_debug
;
181 extern int local_debug
;
182 extern int option_info
;
183 extern char *trace_variable
;
184 extern struct stree
*global_states
;
185 int is_silenced_function(void);
187 extern FILE *sm_outfd
;
188 #define sm_printf(msg...) do { if (final_pass || option_debug) fprintf(sm_outfd, msg); } while (0)
190 static inline void sm_prefix(void)
192 sm_printf("%s:%d %s() ", get_filename(), get_lineno(), get_function());
195 static inline void print_implied_debug_msg();
197 #define sm_msg(msg...) \
199 print_implied_debug_msg(); \
200 if (!option_debug && !final_pass) \
202 if (!option_info && is_silenced_function()) \
209 #define local_debug(msg...) \
215 extern char *implied_debug_msg
;
216 static inline void print_implied_debug_msg(void)
218 static struct symbol
*last_printed
= NULL
;
220 if (!implied_debug_msg
)
222 if (last_printed
== cur_func_sym
)
224 last_printed
= cur_func_sym
;
225 sm_msg("%s", implied_debug_msg
);
228 #define sm_debug(msg...) do { if (option_debug) sm_printf(msg); } while (0)
230 #define sm_info(msg...) do { \
231 if (option_debug || (option_info && final_pass)) { \
233 sm_printf("info: "); \
239 struct smatch_state
*get_state(int owner
, const char *name
, struct symbol
*sym
);
240 struct smatch_state
*get_state_expr(int owner
, struct expression
*expr
);
241 struct state_list
*get_possible_states(int owner
, const char *name
,
243 struct state_list
*get_possible_states_expr(int owner
, struct expression
*expr
);
244 struct sm_state
*set_state(int owner
, const char *name
, struct symbol
*sym
,
245 struct smatch_state
*state
);
246 struct sm_state
*set_state_expr(int owner
, struct expression
*expr
,
247 struct smatch_state
*state
);
248 void delete_state(int owner
, const char *name
, struct symbol
*sym
);
249 void delete_state_expr(int owner
, struct expression
*expr
);
250 void set_true_false_states(int owner
, const char *name
, struct symbol
*sym
,
251 struct smatch_state
*true_state
,
252 struct smatch_state
*false_state
);
253 void set_true_false_states_expr(int owner
, struct expression
*expr
,
254 struct smatch_state
*true_state
,
255 struct smatch_state
*false_state
);
257 struct stree
*get_all_states_from_stree(int owner
, struct stree
*source
);
258 struct stree
*get_all_states_stree(int id
);
259 struct stree
*__get_cur_stree(void);
260 int is_reachable(void);
262 /* smatch_helper.c */
263 char *alloc_string(const char *str
);
264 void free_string(char *str
);
265 void append(char *dest
, const char *data
, int buff_len
);
266 void remove_parens(char *str
);
267 struct smatch_state
*alloc_state_num(int num
);
268 struct expression
*get_argument_from_call_expr(struct expression_list
*args
,
271 char *expr_to_var(struct expression
*expr
);
272 struct symbol
*expr_to_sym(struct expression
*expr
);
273 char *expr_to_str(struct expression
*expr
);
274 char *expr_to_str_sym(struct expression
*expr
,
275 struct symbol
**sym_ptr
);
276 char *expr_to_var_sym(struct expression
*expr
,
277 struct symbol
**sym_ptr
);
279 int sym_name_is(const char *name
, struct expression
*expr
);
280 int get_const_value(struct expression
*expr
, sval_t
*sval
);
281 int get_value(struct expression
*expr
, sval_t
*val
);
282 int get_implied_value(struct expression
*expr
, sval_t
*val
);
283 int get_implied_min(struct expression
*expr
, sval_t
*sval
);
284 int get_implied_max(struct expression
*expr
, sval_t
*val
);
285 int get_hard_max(struct expression
*expr
, sval_t
*sval
);
286 int get_fuzzy_min(struct expression
*expr
, sval_t
*min
);
287 int get_fuzzy_max(struct expression
*expr
, sval_t
*max
);
288 int get_absolute_min(struct expression
*expr
, sval_t
*sval
);
289 int get_absolute_max(struct expression
*expr
, sval_t
*sval
);
290 int parse_call_math(struct expression
*expr
, char *math
, sval_t
*val
);
291 int parse_call_math_rl(struct expression
*call
, char *math
, struct range_list
**rl
);
292 char *get_value_in_terms_of_parameter_math(struct expression
*expr
);
293 char *get_value_in_terms_of_parameter_math_var_sym(const char *var
, struct symbol
*sym
);
294 int is_zero(struct expression
*expr
);
295 int known_condition_true(struct expression
*expr
);
296 int known_condition_false(struct expression
*expr
);
297 int implied_condition_true(struct expression
*expr
);
298 int implied_condition_false(struct expression
*expr
);
299 int can_integer_overflow(struct symbol
*type
, struct expression
*expr
);
301 int is_array(struct expression
*expr
);
302 struct expression
*get_array_base(struct expression
*expr
);
303 struct expression
*get_array_offset(struct expression
*expr
);
304 const char *show_state(struct smatch_state
*state
);
305 struct statement
*get_expression_statement(struct expression
*expr
);
306 struct expression
*strip_parens(struct expression
*expr
);
307 struct expression
*strip_expr(struct expression
*expr
);
308 void scoped_state(int my_id
, const char *name
, struct symbol
*sym
);
309 int is_error_return(struct expression
*expr
);
310 int getting_address(void);
311 char *get_member_name(struct expression
*expr
);
312 char *get_fnptr_name(struct expression
*expr
);
313 int cmp_pos(struct position pos1
, struct position pos2
);
314 int positions_eq(struct position pos1
, struct position pos2
);
315 struct statement
*get_current_statement(void);
316 struct statement
*get_prev_statement(void);
317 int get_param_num_from_sym(struct symbol
*sym
);
318 int get_param_num(struct expression
*expr
);
319 int ms_since(struct timeval
*start
);
320 int parent_is_gone_var_sym(const char *name
, struct symbol
*sym
);
321 int parent_is_gone(struct expression
*expr
);
324 struct symbol
*get_real_base_type(struct symbol
*sym
);
325 int type_bits(struct symbol
*type
);
326 int type_bytes(struct symbol
*type
);
327 int type_positive_bits(struct symbol
*type
);
328 struct symbol
*get_pointer_type(struct expression
*expr
);
329 struct symbol
*get_type(struct expression
*expr
);
330 int type_unsigned(struct symbol
*base_type
);
331 int type_signed(struct symbol
*base_type
);
332 int expr_unsigned(struct expression
*expr
);
333 int returns_unsigned(struct symbol
*base_type
);
334 int is_pointer(struct expression
*expr
);
335 int returns_pointer(struct symbol
*base_type
);
336 sval_t
sval_type_max(struct symbol
*base_type
);
337 sval_t
sval_type_min(struct symbol
*base_type
);
338 int nr_bits(struct expression
*expr
);
339 int is_void_pointer(struct expression
*expr
);
340 int is_char_pointer(struct expression
*expr
);
341 int is_string(struct expression
*expr
);
342 int is_static(struct expression
*expr
);
343 int types_equiv(struct symbol
*one
, struct symbol
*two
);
345 const char *global_static();
346 struct symbol
*cur_func_return_type(void);
347 struct symbol
*get_arg_type(struct expression
*fn
, int arg
);
348 struct symbol
*get_member_type_from_key(struct expression
*expr
, char *key
);
349 int is_struct(struct expression
*expr
);
350 char *type_to_str(struct symbol
*type
);
352 /* smatch_ignore.c */
353 void add_ignore(int owner
, const char *name
, struct symbol
*sym
);
354 int is_ignored(int owner
, const char *name
, struct symbol
*sym
);
357 struct var_sym
*alloc_var_sym(const char *var
, struct symbol
*sym
);
358 struct var_sym_list
*expr_to_vsl(struct expression
*expr
);
359 void add_var_sym(struct var_sym_list
**list
, const char *var
, struct symbol
*sym
);
360 void add_var_sym_expr(struct var_sym_list
**list
, struct expression
*expr
);
361 void del_var_sym(struct var_sym_list
**list
, const char *var
, struct symbol
*sym
);
362 int in_var_sym_list(struct var_sym_list
*list
, const char *var
, struct symbol
*sym
);
363 struct var_sym_list
*clone_var_sym_list(struct var_sym_list
*from_vsl
);
364 void merge_var_sym_list(struct var_sym_list
**dest
, struct var_sym_list
*src
);
365 struct var_sym_list
*combine_var_sym_lists(struct var_sym_list
*one
, struct var_sym_list
*two
);
366 void free_var_sym_list(struct var_sym_list
**list
);
367 void free_var_syms_and_list(struct var_sym_list
**list
);
370 struct tracker
*alloc_tracker(int owner
, const char *name
, struct symbol
*sym
);
371 void add_tracker(struct tracker_list
**list
, int owner
, const char *name
,
373 void add_tracker_expr(struct tracker_list
**list
, int owner
, struct expression
*expr
);
374 void del_tracker(struct tracker_list
**list
, int owner
, const char *name
,
376 int in_tracker_list(struct tracker_list
*list
, int owner
, const char *name
,
378 void free_tracker_list(struct tracker_list
**list
);
379 void free_trackers_and_list(struct tracker_list
**list
);
381 /* smatch_conditions */
382 int in_condition(void);
386 extern int __in_fake_assign
;
387 void smatch (int argc
, char **argv
);
388 int inside_loop(void);
389 int definitely_inside_loop(void);
390 struct expression
*get_switch_expr(void);
391 int in_expression_statement(void);
392 void __process_post_op_stack(void);
393 void __split_expr(struct expression
*expr
);
394 void __split_stmt(struct statement
*stmt
);
395 extern int __in_function_def
;
396 extern int option_assume_loops
;
397 extern int option_known_conditions
;
398 extern int option_two_passes
;
399 extern int option_no_db
;
400 extern int option_file_output
;
401 extern int option_time
;
402 extern struct expression_list
*big_expression_stack
;
403 extern struct statement_list
*big_statement_stack
;
404 int is_assigned_call(struct expression
*expr
);
405 int inlinable(struct expression
*expr
);
406 extern int __inline_call
;
407 extern struct expression
*__inline_fn
;
408 extern int __in_pre_condition
;
409 extern int __bail_on_rest_of_function
;
411 /* smatch_struct_assignment.c */
412 struct expression
*get_faked_expression(void);
413 void __fake_struct_member_assignments(struct expression
*expr
);
415 /* smatch_project.c */
416 int is_no_inline_function(const char *function
);
418 /* smatch_conditions */
419 void __split_whole_condition(struct expression
*expr
);
420 void __handle_logic(struct expression
*expr
);
421 int is_condition(struct expression
*expr
);
422 int __handle_condition_assigns(struct expression
*expr
);
423 int __handle_select_assigns(struct expression
*expr
);
424 int __handle_expr_statement_assigns(struct expression
*expr
);
426 /* smatch_implied.c */
427 extern int option_debug_implied
;
428 extern int option_debug_related
;
429 extern int option_no_implied
;
430 struct range_list_stack
;
431 struct stree
*__implied_case_stree(struct expression
*switch_expr
,
432 struct expression
*case_expr
,
433 struct range_list_stack
**remaining_cases
,
434 struct stree
**raw_stree
);
435 struct range_list
*__get_implied_values(struct expression
*switch_expr
);
436 void overwrite_states_using_pool(struct sm_state
*sm
);
438 /* smatch_extras.c */
439 #define SMATCH_EXTRA 1 /* this is my_id from smatch extra set in smatch.c */
446 extern long long valid_ptr_min
, valid_ptr_max
;
447 extern sval_t valid_ptr_min_sval
, valid_ptr_max_sval
;
448 static const sval_t array_min_sval
= {
452 static const sval_t array_max_sval
= {
457 /* smatch_absolute.c */
458 int get_absolute_min_helper(struct expression
*expr
, sval_t
*sval
);
459 int get_absolute_max_helper(struct expression
*expr
, sval_t
*sval
);
461 /* smatch_local_values.c */
462 int get_local_rl(struct expression
*expr
, struct range_list
**rl
);
463 int get_local_max_helper(struct expression
*expr
, sval_t
*sval
);
464 int get_local_min_helper(struct expression
*expr
, sval_t
*sval
);
466 /* smatch_type_value.c */
467 int get_db_type_rl(struct expression
*expr
, struct range_list
**rl
);
469 /* smatch_states.c */
470 void __push_fake_cur_stree();
471 struct stree
*__pop_fake_cur_stree();
472 void __free_fake_cur_stree();
473 void __set_fake_cur_stree_fast(struct stree
*stree
);
474 void __pop_fake_cur_stree_fast(void);
475 void __merge_stree_into_cur(struct stree
*stree
);
477 int unreachable(void);
478 void __set_sm(struct sm_state
*sm
);
479 void __set_true_false_sm(struct sm_state
*true_state
,
480 struct sm_state
*false_state
);
481 void nullify_path(void);
482 void __match_nullify_path_hook(const char *fn
, struct expression
*expr
,
484 void __unnullify_path(void);
485 int __path_is_null(void);
486 void save_all_states(void);
487 void restore_all_states(void);
488 void free_goto_stack(void);
489 void clear_all_states(void);
491 struct sm_state
*get_sm_state(int owner
, const char *name
,
493 struct sm_state
*get_sm_state_expr(int owner
, struct expression
*expr
);
494 void __push_true_states(void);
495 void __use_false_states(void);
496 void __discard_false_states(void);
497 void __merge_false_states(void);
498 void __merge_true_states(void);
500 void __negate_cond_stacks(void);
501 void __use_pre_cond_states(void);
502 void __use_cond_true_states(void);
503 void __use_cond_false_states(void);
504 void __push_cond_stacks(void);
505 struct stree
*__copy_cond_true_states(void);
506 struct stree
*__copy_cond_false_states(void);
507 struct stree
*__pop_cond_true_stack(void);
508 struct stree
*__pop_cond_false_stack(void);
509 void __and_cond_states(void);
510 void __or_cond_states(void);
511 void __save_pre_cond_states(void);
512 void __discard_pre_cond_states(void);
513 void __use_cond_states(void);
514 extern struct state_list
*__last_base_slist
;
516 void __warn_on_silly_pre_loops(void);
518 void __push_continues(void);
519 void __discard_continues(void);
520 void __process_continues(void);
521 void __merge_continues(void);
523 void __push_breaks(void);
524 void __process_breaks(void);
525 int __has_breaks(void);
526 void __merge_breaks(void);
527 void __use_breaks(void);
529 void __save_switch_states(struct expression
*switch_expr
);
530 void __discard_switches(void);
531 void __merge_switches(struct expression
*switch_expr
, struct expression
*case_expr
);
532 void __push_default(void);
533 void __set_default(void);
534 int __pop_default(void);
536 void __push_conditions(void);
537 void __discard_conditions(void);
539 void __save_gotos(const char *name
);
540 void __merge_gotos(const char *name
);
542 void __print_cur_stree(void);
545 void __pass_to_client(void *data
, enum hook_type type
);
546 void __pass_to_client_no_data(enum hook_type type
);
547 void __pass_case_to_client(struct expression
*switch_expr
,
548 struct expression
*case_expr
);
549 int __has_merge_function(int client_id
);
550 struct smatch_state
*__client_merge_function(int owner
,
551 struct smatch_state
*s1
,
552 struct smatch_state
*s2
);
553 struct smatch_state
*__client_unmatched_state_function(struct sm_state
*sm
);
554 void call_pre_merge_hook(struct sm_state
*sm
);
555 void __push_scope_hooks(void);
556 void __call_scope_hooks(void);
558 /* smatch_function_hooks.c */
559 void create_function_hook_hash(void);
560 void __match_initializer_call(struct symbol
*sym
);
566 * Changing these numbers is a pain. Don't do it. If you ever use a
567 * number it can't be re-used right away so there may be gaps.
568 * We select these in order by type so if the order matters, then give
569 * it a number below 100-999,9000-9999 ranges. */
582 LOCK_RELEASED
= 1009,
583 ABSOLUTE_LIMITS
= 1010,
584 LIMITED_VALUE
= 1011,
594 UNTRACKED_PARAM
= 1023,
597 /* put random temporary stuff in the 7000-7999 range for testing */
599 USER_DATA_SET
= 9018,
600 USER_DATA_LIMITED
= 9019,
603 void debug_sql(const char *sql
);
604 void select_caller_info_hook(void (*callback
)(const char *name
, struct symbol
*sym
, char *key
, char *value
), int type
);
605 void add_member_info_callback(int owner
, void (*callback
)(struct expression
*call
, int param
, char *printed_name
, struct smatch_state
*state
));
606 void add_split_return_callback(void (*fn
)(int return_id
, char *return_ranges
, struct expression
*returned_expr
));
607 void add_returned_member_callback(int owner
, void (*callback
)(int return_id
, char *return_ranges
, struct expression
*expr
, char *printed_name
, struct smatch_state
*state
));
608 void select_call_implies_hook(int type
, void (*callback
)(struct expression
*arg
, char *key
, char *value
));
609 struct range_list
*db_return_vals(struct expression
*expr
);
610 char *return_state_to_var_sym(struct expression
*expr
, int param
, char *key
, struct symbol
**sym
);
611 char *get_variable_from_key(struct expression
*arg
, char *key
, struct symbol
**sym
);
612 const char *get_param_name(struct sm_state
*sm
);
613 char *get_data_info_name(struct expression
*expr
);
615 #define run_sql(call_back, data, sql...) \
617 char sql_txt[1024]; \
620 snprintf(sql_txt, 1024, sql); \
621 debug_sql(sql_txt); \
622 sql_exec(call_back, data, sql_txt); \
625 /* like run_sql() but for the in-memory database */
626 #define mem_sql(call_back, data, sql...) \
628 char sql_txt[1024]; \
630 snprintf(sql_txt, sizeof(sql_txt), sql); \
631 sm_debug("in-mem: %s\n", sql_txt); \
632 sql_mem_exec(call_back, data, sql_txt); \
635 void sql_insert_return_states(int return_id
, const char *return_ranges
,
636 int type
, int param
, const char *key
, const char *value
);
637 void sql_insert_caller_info(struct expression
*call
, int type
, int param
,
638 const char *key
, const char *value
);
639 void sql_insert_function_ptr(const char *fn
, const char *struct_name
);
640 void sql_insert_return_values(const char *return_values
);
641 void sql_insert_call_implies(int type
, int param
, const char *key
, const char *value
);
642 void sql_insert_function_type_size(const char *member
, const char *ranges
);
643 void sql_insert_local_values(const char *name
, const char *value
);
644 void sql_insert_function_type_value(const char *type
, const char *value
);
645 void sql_insert_function_type_info(int param
, const char *value
);
646 void sql_insert_data_info(struct expression
*data
, int type
, const char *value
);
648 void sql_select_return_states(const char *cols
, struct expression
*call
,
649 int (*callback
)(void*, int, char**, char**), void *info
);
650 void sql_select_caller_info(const char *cols
, struct symbol
*sym
,
651 int (*callback
)(void*, int, char**, char**));
652 void sql_select_call_implies(const char *cols
, struct expression
*call
,
653 int (*callback
)(void*, int, char**, char**));
655 void sql_exec(int (*callback
)(void*, int, char**, char**), void *data
, const char *sql
);
656 void sql_mem_exec(int (*callback
)(void*, int, char**, char**), void *data
, const char *sql
);
658 void open_smatch_db(void);
661 int open_data_file(const char *filename
);
662 struct token
*get_tokens_file(const char *filename
);
665 extern char *option_debug_check
;
666 extern char *option_project_str
;
667 extern char *data_dir
;
668 extern int option_no_data
;
669 extern int option_spammy
;
670 extern int option_full_path
;
671 extern int option_param_mapper
;
672 extern int option_call_tree
;
673 extern int num_checks
;
680 extern enum project_type option_project
;
681 const char *check_name(unsigned short id
);
684 /* smatch_buf_size.c */
685 int get_array_size(struct expression
*expr
);
686 int get_array_size_bytes(struct expression
*expr
);
687 int get_array_size_bytes_min(struct expression
*expr
);
688 int get_array_size_bytes_max(struct expression
*expr
);
689 struct range_list
*get_array_size_bytes_rl(struct expression
*expr
);
690 int get_real_array_size(struct expression
*expr
);
691 /* smatch_strlen.c */
692 int get_implied_strlen(struct expression
*expr
, struct range_list
**rl
);
693 int get_size_from_strlen(struct expression
*expr
);
695 /* smatch_capped.c */
696 int is_capped(struct expression
*expr
);
697 int is_capped_var_sym(const char *name
, struct symbol
*sym
);
699 /* check_user_data.c */
700 int is_user_macro(struct expression
*expr
);
701 int is_user_data(struct expression
*expr
);
702 int is_capped_user_data(struct expression
*expr
);
703 int implied_user_data(struct expression
*expr
, struct range_list
**rl
);
705 /* check_locking.c */
706 void print_held_locks();
708 /* check_assigned_expr.c */
709 struct expression
*get_assigned_expr(struct expression
*expr
);
710 struct expression
*get_assigned_expr_name_sym(const char *name
, struct symbol
*sym
);
712 /* smatch_comparison.c */
713 struct compare_data
{
715 struct var_sym_list
*vsl1
;
718 struct var_sym_list
*vsl2
;
720 int get_comparison(struct expression
*left
, struct expression
*right
);
721 int get_comparison_strings(const char *one
, const char *two
);
722 int possible_comparison(struct expression
*a
, int comparison
, struct expression
*b
);
723 struct state_list
*get_all_comparisons(struct expression
*expr
);
724 struct state_list
*get_all_possible_equal_comparisons(struct expression
*expr
);
725 void __add_comparison_info(struct expression
*expr
, struct expression
*call
, const char *range
);
726 char *expr_equal_to_param(struct expression
*expr
, int ignore
);
727 char *expr_lte_to_param(struct expression
*expr
, int ignore
);
728 char *expr_param_comparison(struct expression
*expr
, int ignore
);
729 int flip_comparison(int op
);
730 int negate_comparison(int op
);
731 void filter_by_comparison(struct range_list
**rl
, int comparison
, struct range_list
*right
);
734 sval_t
*sval_alloc(sval_t sval
);
735 sval_t
*sval_alloc_permanent(sval_t sval
);
736 sval_t
sval_blank(struct expression
*expr
);
737 sval_t
sval_type_val(struct symbol
*type
, long long val
);
738 sval_t
sval_from_val(struct expression
*expr
, long long val
);
739 int sval_unsigned(sval_t sval
);
740 int sval_signed(sval_t sval
);
741 int sval_bits(sval_t sval
);
742 int sval_positive_bits(sval_t sval
);
743 int sval_bits_used(sval_t sval
);
744 int sval_is_negative(sval_t sval
);
745 int sval_is_positive(sval_t sval
);
746 int sval_is_min(sval_t sval
);
747 int sval_is_max(sval_t sval
);
748 int sval_is_a_min(sval_t sval
);
749 int sval_is_a_max(sval_t sval
);
750 int sval_is_negative_min(sval_t sval
);
751 int sval_cmp(sval_t one
, sval_t two
);
752 int sval_cmp_t(struct symbol
*type
, sval_t one
, sval_t two
);
753 int sval_cmp_val(sval_t one
, long long val
);
754 sval_t
sval_min(sval_t one
, sval_t two
);
755 sval_t
sval_max(sval_t one
, sval_t two
);
756 int sval_too_low(struct symbol
*type
, sval_t sval
);
757 int sval_too_high(struct symbol
*type
, sval_t sval
);
758 int sval_fits(struct symbol
*type
, sval_t sval
);
759 sval_t
sval_cast(struct symbol
*type
, sval_t sval
);
760 sval_t
sval_preop(sval_t sval
, int op
);
761 sval_t
sval_binop(sval_t left
, int op
, sval_t right
);
762 int sval_binop_overflows(sval_t left
, int op
, sval_t right
);
763 const char *sval_to_str(sval_t sval
);
764 const char *sval_to_numstr(sval_t sval
);
765 sval_t
ll_to_sval(long long val
);
767 /* smatch_string_list.c */
768 int list_has_string(struct string_list
*str_list
, char *str
);
769 void insert_string(struct string_list
**str_list
, char *str
);
770 struct string_list
*clone_str_list(struct string_list
*orig
);
771 struct string_list
*combine_string_lists(struct string_list
*one
, struct string_list
*two
);
773 /* smatch_start_states.c */
774 struct stree
*get_start_states(void);
776 /* smatch_recurse.c */
777 int has_symbol(struct expression
*expr
, struct symbol
*sym
);
778 int has_variable(struct expression
*expr
, struct expression
*var
);
779 int has_inc_dec(struct expression
*expr
);
781 /* smatch_stored_conditions.c */
782 struct smatch_state
*get_stored_condition(struct expression
*expr
);
784 /* check_string_len.c */
785 int get_formatted_string_size(struct expression
*call
, int arg
);
787 /* smatch_param_set.c */
788 int param_was_set(struct expression
*expr
);
791 void set_up_link_functions(int id
, int linkid
);
792 void store_link(int link_id
, const char *name
, struct symbol
*sym
, const char *link_name
, struct symbol
*link_sym
);
794 /* smatch_auto_copy.c */
795 void set_auto_copy(int owner
);
797 /* check_buf_comparison */
798 struct expression
*get_size_variable(struct expression
*buf
);
800 /* smatch_untracked_param.c */
801 void add_untracked_param_hook(void (func
)(struct expression
*call
, int param
));
803 /* smatch_impossible.c */
804 int is_impossible_path(void);
806 #endif /* !SMATCH_H_ */