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 merged
;
47 extern struct smatch_state true_state
;
48 extern struct smatch_state false_state
;
49 DECLARE_ALLOCATOR(smatch_state
);
51 static inline void *INT_PTR(int i
)
53 return (void *)(long)i
;
56 static inline int PTR_INT(void *p
)
63 unsigned short merged
:1;
64 unsigned short implied
:1;
65 unsigned int nr_children
;
69 struct smatch_state
*state
;
70 struct state_list
*pool
;
71 struct sm_state
*left
;
72 struct sm_state
*right
;
73 struct state_list
*possible
;
80 DECLARE_ALLOCATOR(var_sym
);
81 DECLARE_PTR_LIST(var_sym_list
, struct var_sym
);
88 DECLARE_ALLOCATOR(tracker
);
89 DECLARE_PTR_LIST(tracker_list
, struct tracker
);
100 GLOBAL_ASSIGNMENT_HOOK
,
105 WHOLE_CONDITION_HOOK
,
107 CALL_HOOK_AFTER_INLINE
,
108 CALL_ASSIGNMENT_HOOK
,
109 MACRO_ASSIGNMENT_HOOK
,
133 void add_hook(void *func
, enum hook_type type
);
134 typedef struct smatch_state
*(merge_func_t
)(struct smatch_state
*s1
, struct smatch_state
*s2
);
135 typedef struct smatch_state
*(unmatched_func_t
)(struct sm_state
*state
);
136 void add_merge_hook(int client_id
, merge_func_t
*func
);
137 void add_unmatched_state_hook(int client_id
, unmatched_func_t
*func
);
138 typedef void (scope_hook
)(void *data
);
139 void add_scope_hook(scope_hook
*hook
, void *data
);
140 typedef void (func_hook
)(const char *fn
, struct expression
*expr
, void *data
);
141 typedef void (implication_hook
)(const char *fn
, struct expression
*call_expr
,
142 struct expression
*assign_expr
, void *data
);
143 typedef void (return_implies_hook
)(struct expression
*call_expr
,
144 int param
, char *key
, char *value
);
145 typedef int (implied_return_hook
)(struct expression
*call_expr
, void *info
, struct range_list
**rl
);
146 void add_function_hook(const char *look_for
, func_hook
*call_back
, void *data
);
148 void add_function_assign_hook(const char *look_for
, func_hook
*call_back
,
150 void add_implied_return_hook(const char *look_for
,
151 implied_return_hook
*call_back
,
153 void add_macro_assign_hook(const char *look_for
, func_hook
*call_back
,
155 void add_macro_assign_hook_extra(const char *look_for
, func_hook
*call_back
,
157 void return_implies_state(const char *look_for
, long long start
, long long end
,
158 implication_hook
*call_back
, void *info
);
159 void select_return_states_hook(int type
, return_implies_hook
*callback
);
160 void select_return_states_before(void (*fn
)(void));
161 void select_return_states_after(void (*fn
)(void));
162 int get_implied_return(struct expression
*expr
, struct range_list
**rl
);
164 typedef void (modification_hook
)(struct sm_state
*sm
, struct expression
*mod_expr
);
165 void add_modification_hook(int owner
, modification_hook
*call_back
);
166 void add_indirect_modification_hook(int owner
, modification_hook
*call_back
);
168 int outside_of_function(void);
169 const char *get_filename(void);
170 const char *get_base_file(void);
171 char *get_function(void);
172 int get_lineno(void);
173 extern int final_pass
;
174 extern struct symbol
*cur_func_sym
;
175 extern int option_debug
;
176 extern int local_debug
;
177 extern int option_info
;
178 int is_silenced_function(void);
180 extern FILE *sm_outfd
;
181 #define sm_printf(msg...) do { if (final_pass || option_debug) fprintf(sm_outfd, msg); } while (0)
183 static inline void sm_prefix(void)
185 sm_printf("%s:%d %s() ", get_filename(), get_lineno(), get_function());
188 static inline void print_implied_debug_msg();
190 #define sm_msg(msg...) \
192 print_implied_debug_msg(); \
193 if (!option_debug && !final_pass) \
195 if (!option_info && is_silenced_function()) \
202 #define local_debug(msg...) \
208 extern char *implied_debug_msg
;
209 static inline void print_implied_debug_msg()
211 static struct symbol
*last_printed
= NULL
;
213 if (!implied_debug_msg
)
215 if (last_printed
== cur_func_sym
)
217 last_printed
= cur_func_sym
;
218 sm_msg("%s", implied_debug_msg
);
221 #define sm_debug(msg...) do { if (option_debug) sm_printf(msg); } while (0)
223 #define sm_info(msg...) do { \
224 if (option_debug || (option_info && final_pass)) { \
226 sm_printf("info: "); \
232 struct smatch_state
*get_state(int owner
, const char *name
, struct symbol
*sym
);
233 struct smatch_state
*get_state_expr(int owner
, struct expression
*expr
);
234 struct state_list
*get_possible_states(int owner
, const char *name
,
236 struct state_list
*get_possible_states_expr(int owner
, struct expression
*expr
);
237 struct sm_state
*set_state(int owner
, const char *name
, struct symbol
*sym
,
238 struct smatch_state
*state
);
239 struct sm_state
*set_state_expr(int owner
, struct expression
*expr
,
240 struct smatch_state
*state
);
241 void delete_state(int owner
, const char *name
, struct symbol
*sym
);
242 void delete_state_expr(int owner
, struct expression
*expr
);
243 void set_true_false_states(int owner
, const char *name
, struct symbol
*sym
,
244 struct smatch_state
*true_state
,
245 struct smatch_state
*false_state
);
246 void set_true_false_states_expr(int owner
, struct expression
*expr
,
247 struct smatch_state
*true_state
,
248 struct smatch_state
*false_state
);
250 struct state_list
*get_all_states_slist(int owner
, struct state_list
*source
);
251 struct state_list
*get_all_states(int id
);
252 int is_reachable(void);
254 /* smatch_helper.c */
255 char *alloc_string(const char *str
);
256 void free_string(char *str
);
257 void append(char *dest
, const char *data
, int buff_len
);
258 void remove_parens(char *str
);
259 struct smatch_state
*alloc_state_num(int num
);
260 struct expression
*get_argument_from_call_expr(struct expression_list
*args
,
263 char *expr_to_var(struct expression
*expr
);
264 char *expr_to_str(struct expression
*expr
);
265 char *expr_to_str_sym(struct expression
*expr
,
266 struct symbol
**sym_ptr
);
267 char *expr_to_var_sym(struct expression
*expr
,
268 struct symbol
**sym_ptr
);
270 int sym_name_is(const char *name
, struct expression
*expr
);
271 int get_const_value(struct expression
*expr
, sval_t
*sval
);
272 int get_value(struct expression
*expr
, sval_t
*val
);
273 int get_implied_value(struct expression
*expr
, sval_t
*val
);
274 int get_implied_min(struct expression
*expr
, sval_t
*sval
);
275 int get_implied_max(struct expression
*expr
, sval_t
*val
);
276 int get_hard_max(struct expression
*expr
, sval_t
*sval
);
277 int get_fuzzy_min(struct expression
*expr
, sval_t
*min
);
278 int get_fuzzy_max(struct expression
*expr
, sval_t
*max
);
279 int get_absolute_min(struct expression
*expr
, sval_t
*sval
);
280 int get_absolute_max(struct expression
*expr
, sval_t
*sval
);
281 int parse_call_math(struct expression
*expr
, char *math
, sval_t
*val
);
282 int is_zero(struct expression
*expr
);
283 int known_condition_true(struct expression
*expr
);
284 int known_condition_false(struct expression
*expr
);
285 int implied_condition_true(struct expression
*expr
);
286 int implied_condition_false(struct expression
*expr
);
288 int is_array(struct expression
*expr
);
289 struct expression
*get_array_name(struct expression
*expr
);
290 struct expression
*get_array_offset(struct expression
*expr
);
291 const char *show_state(struct smatch_state
*state
);
292 struct statement
*get_expression_statement(struct expression
*expr
);
293 struct expression
*strip_parens(struct expression
*expr
);
294 struct expression
*strip_expr(struct expression
*expr
);
295 void scoped_state(int my_id
, const char *name
, struct symbol
*sym
);
296 int is_error_return(struct expression
*expr
);
297 int getting_address(void);
298 char *get_member_name(struct expression
*expr
);
299 char *get_fnptr_name(struct expression
*expr
);
300 int cmp_pos(struct position pos1
, struct position pos2
);
301 int positions_eq(struct position pos1
, struct position pos2
);
302 struct statement
*get_current_statement(void);
303 int get_param_num_from_sym(struct symbol
*sym
);
304 int get_param_num(struct expression
*expr
);
305 int ms_since(struct timeval
*start
);
308 struct symbol
*get_real_base_type(struct symbol
*sym
);
309 int type_bits(struct symbol
*type
);
310 int type_positive_bits(struct symbol
*type
);
311 struct symbol
*get_pointer_type(struct expression
*expr
);
312 struct symbol
*get_type(struct expression
*expr
);
313 int type_unsigned(struct symbol
*base_type
);
314 int type_signed(struct symbol
*base_type
);
315 int expr_unsigned(struct expression
*expr
);
316 int returns_unsigned(struct symbol
*base_type
);
317 int is_pointer(struct expression
*expr
);
318 int returns_pointer(struct symbol
*base_type
);
319 sval_t
sval_type_max(struct symbol
*base_type
);
320 sval_t
sval_type_min(struct symbol
*base_type
);
321 int nr_bits(struct expression
*expr
);
322 int is_void_pointer(struct expression
*expr
);
323 int is_char_pointer(struct expression
*expr
);
324 int is_static(struct expression
*expr
);
325 int types_equiv(struct symbol
*one
, struct symbol
*two
);
327 const char *global_static();
328 struct symbol
*cur_func_return_type(void);
329 struct symbol
*get_arg_type(struct expression
*fn
, int arg
);
330 struct symbol
*get_member_type_from_key(struct expression
*expr
, char *key
);
332 /* smatch_ignore.c */
333 void add_ignore(int owner
, const char *name
, struct symbol
*sym
);
334 int is_ignored(int owner
, const char *name
, struct symbol
*sym
);
337 struct var_sym
*alloc_var_sym(const char *var
, struct symbol
*sym
);
338 struct var_sym_list
*expr_to_vsl(struct expression
*expr
);
339 void add_var_sym(struct var_sym_list
**list
, const char *var
, struct symbol
*sym
);
340 void add_var_sym_expr(struct var_sym_list
**list
, struct expression
*expr
);
341 void del_var_sym(struct var_sym_list
**list
, const char *var
, struct symbol
*sym
);
342 int in_var_sym_list(struct var_sym_list
*list
, const char *var
, struct symbol
*sym
);
343 struct var_sym_list
*clone_var_sym_list(struct var_sym_list
*from_vsl
);
344 void merge_var_sym_list(struct var_sym_list
**dest
, struct var_sym_list
*src
);
345 struct var_sym_list
*combine_var_sym_lists(struct var_sym_list
*one
, struct var_sym_list
*two
);
346 void free_var_sym_list(struct var_sym_list
**list
);
347 void free_var_syms_and_list(struct var_sym_list
**list
);
350 struct tracker
*alloc_tracker(int owner
, const char *name
, struct symbol
*sym
);
351 void add_tracker(struct tracker_list
**list
, int owner
, const char *name
,
353 void add_tracker_expr(struct tracker_list
**list
, int owner
, struct expression
*expr
);
354 void del_tracker(struct tracker_list
**list
, int owner
, const char *name
,
356 int in_tracker_list(struct tracker_list
*list
, int owner
, const char *name
,
358 void free_tracker_list(struct tracker_list
**list
);
359 void free_trackers_and_list(struct tracker_list
**list
);
361 /* smatch_conditions */
362 int in_condition(void);
366 extern int __in_fake_assign
;
367 void smatch (int argc
, char **argv
);
368 int inside_loop(void);
369 int definitely_inside_loop(void);
370 struct expression
*get_switch_expr(void);
371 int in_expression_statement(void);
372 void __process_post_op_stack(void);
373 void __split_expr(struct expression
*expr
);
374 void __split_stmt(struct statement
*stmt
);
375 extern int __in_function_def
;
376 extern int option_assume_loops
;
377 extern int option_known_conditions
;
378 extern int option_two_passes
;
379 extern int option_no_db
;
380 extern int option_file_output
;
381 extern int option_time
;
382 extern struct expression_list
*big_expression_stack
;
383 extern struct statement_list
*big_statement_stack
;
384 int inlinable(struct expression
*expr
);
385 extern int __inline_call
;
386 extern struct expression
*__inline_fn
;
387 extern int __in_pre_condition
;
388 extern int __bail_on_rest_of_function
;
390 /* smatch_struct_assignment.c */
396 void __struct_members_copy(int mode
, struct expression
*left
, struct expression
*right
);
397 void __fake_struct_member_assignments(struct expression
*expr
);
399 /* smatch_project.c */
400 int is_no_inline_function(const char *function
);
402 /* smatch_conditions */
403 void __split_whole_condition(struct expression
*expr
);
404 void __handle_logic(struct expression
*expr
);
405 int is_condition(struct expression
*expr
);
406 int __handle_condition_assigns(struct expression
*expr
);
407 int __handle_select_assigns(struct expression
*expr
);
408 int __handle_expr_statement_assigns(struct expression
*expr
);
410 /* smatch_implied.c */
411 extern int option_debug_implied
;
412 extern int option_debug_related
;
413 extern int option_no_implied
;
414 struct range_list_stack
;
415 struct state_list
*__implied_case_slist(struct expression
*switch_expr
,
416 struct expression
*case_expr
,
417 struct range_list_stack
**remaining_cases
,
418 struct state_list
**raw_slist
);
419 struct range_list
*__get_implied_values(struct expression
*switch_expr
);
420 void overwrite_states_using_pool(struct sm_state
*sm
);
422 /* smatch_extras.c */
423 #define SMATCH_EXTRA 1 /* this is my_id from smatch extra set in smatch.c */
430 static const long long valid_ptr_max
= LONG_MAX
;
431 static const long long valid_ptr_min
= 4096;
432 static const sval_t valid_ptr_max_sval
= {
436 static const sval_t valid_ptr_min_sval
= {
441 /* smatch_absolute.c */
442 int get_absolute_min_helper(struct expression
*expr
, sval_t
*sval
);
443 int get_absolute_max_helper(struct expression
*expr
, sval_t
*sval
);
445 /* smatch_local_values.c */
446 int get_local_rl(struct expression
*expr
, struct range_list
**rl
);
447 int get_local_max_helper(struct expression
*expr
, sval_t
*sval
);
448 int get_local_min_helper(struct expression
*expr
, sval_t
*sval
);
450 /* smatch_type_value.c */
451 int get_db_type_rl(struct expression
*expr
, struct range_list
**rl
);
453 /* smatch_states.c */
454 void __push_fake_cur_slist();
455 struct state_list
*__pop_fake_cur_slist();
456 void __free_fake_cur_slist();
457 void __set_fake_cur_slist_fast(struct state_list
*slist
);
458 void __pop_fake_cur_slist_fast(void);
459 void __merge_slist_into_cur(struct state_list
*slist
);
461 int unreachable(void);
462 void __set_sm(struct sm_state
*sm
);
463 struct state_list
*__get_cur_slist(void);
464 void __set_true_false_sm(struct sm_state
*true_state
,
465 struct sm_state
*false_state
);
466 void nullify_path(void);
467 void __match_nullify_path_hook(const char *fn
, struct expression
*expr
,
469 void __unnullify_path(void);
470 int __path_is_null(void);
471 void save_all_states(void);
472 void nullify_all_states(void);
473 void restore_all_states(void);
474 void clear_all_states(void);
476 struct sm_state
*get_sm_state(int owner
, const char *name
,
478 struct sm_state
*get_sm_state_expr(int owner
, struct expression
*expr
);
479 void __push_true_states(void);
480 void __use_false_states(void);
481 void __discard_false_states(void);
482 void __merge_false_states(void);
483 void __merge_true_states(void);
485 void __negate_cond_stacks(void);
486 void __use_pre_cond_states(void);
487 void __use_cond_true_states(void);
488 void __use_cond_false_states(void);
489 void __push_cond_stacks(void);
490 struct state_list
*__copy_cond_true_states(void);
491 struct state_list
*__copy_cond_false_states(void);
492 struct state_list
*__pop_cond_true_stack(void);
493 struct state_list
*__pop_cond_false_stack(void);
494 void __and_cond_states(void);
495 void __or_cond_states(void);
496 void __save_pre_cond_states(void);
497 void __discard_pre_cond_states(void);
498 void __use_cond_states(void);
499 extern struct state_list
*__last_base_slist
;
501 void __warn_on_silly_pre_loops(void);
503 void __push_continues(void);
504 void __discard_continues(void);
505 void __process_continues(void);
506 void __merge_continues(void);
508 void __push_breaks(void);
509 void __process_breaks(void);
510 int __has_breaks(void);
511 void __merge_breaks(void);
512 void __use_breaks(void);
514 void __save_switch_states(struct expression
*switch_expr
);
515 void __discard_switches(void);
516 void __merge_switches(struct expression
*switch_expr
, struct expression
*case_expr
);
517 void __push_default(void);
518 void __set_default(void);
519 int __pop_default(void);
521 void __push_conditions(void);
522 void __discard_conditions(void);
524 void __save_gotos(const char *name
);
525 void __merge_gotos(const char *name
);
527 void __print_cur_slist(void);
530 void __pass_to_client(void *data
, enum hook_type type
);
531 void __pass_to_client_no_data(enum hook_type type
);
532 void __pass_case_to_client(struct expression
*switch_expr
,
533 struct expression
*case_expr
);
534 int __has_merge_function(int client_id
);
535 struct smatch_state
*__client_merge_function(int owner
,
536 struct smatch_state
*s1
,
537 struct smatch_state
*s2
);
538 struct smatch_state
*__client_unmatched_state_function(struct sm_state
*sm
);
539 void __push_scope_hooks(void);
540 void __call_scope_hooks(void);
542 /* smatch_function_hooks.c */
543 void create_function_hook_hash(void);
544 void __match_initializer_call(struct symbol
*sym
);
550 * Changing these numbers is a pain. Don't do it. If you ever use a
551 * number it can't be re-used right away so there may be gaps.
552 * We select these in order by type so if the order matters, then give
553 * it a number below 100-999,9000-9999 ranges. */
566 LOCK_RELEASED
= 1009,
567 ABSOLUTE_LIMITS
= 1010,
568 LIMITED_VALUE
= 1011,
576 void debug_sql(const char *sql
);
577 void select_caller_info_hook(void (*callback
)(const char *name
, struct symbol
*sym
, char *key
, char *value
), int type
);
578 void add_member_info_callback(int owner
, void (*callback
)(struct expression
*call
, int param
, char *printed_name
, struct smatch_state
*state
));
579 void add_split_return_callback(void (*fn
)(int return_id
, char *return_ranges
, struct expression
*returned_expr
));
580 void add_returned_member_callback(int owner
, void (*callback
)(int return_id
, char *return_ranges
, char *printed_name
, struct smatch_state
*state
));
581 void select_call_implies_hook(int type
, void (*callback
)(struct expression
*arg
, char *value
));
582 struct range_list
*db_return_vals(struct expression
*expr
);
583 char *return_state_to_var_sym(struct expression
*expr
, int param
, char *key
, struct symbol
**sym
);
584 char *get_variable_from_key(struct expression
*arg
, char *key
, struct symbol
**sym
);
585 const char *get_param_name(struct sm_state
*sm
);
587 #define run_sql(call_back, sql...) \
589 char sql_txt[1024]; \
592 snprintf(sql_txt, 1024, sql); \
593 debug_sql(sql_txt); \
594 sql_exec(call_back, sql_txt); \
597 /* like run_sql() but for the in-memory database */
598 #define mem_sql(call_back, sql...) \
600 char sql_txt[1024]; \
602 snprintf(sql_txt, sizeof(sql_txt), sql); \
603 sm_debug("in-mem: %s\n", sql_txt); \
604 sql_mem_exec(call_back, sql_txt); \
607 void sql_insert_return_states(int return_id
, const char *return_ranges
,
608 int type
, int param
, const char *key
, const char *value
);
609 void sql_insert_caller_info(struct expression
*call
, int type
, int param
,
610 const char *key
, const char *value
);
611 void sql_insert_function_ptr(const char *fn
, const char *struct_name
);
612 void sql_insert_return_values(const char *return_values
);
613 void sql_insert_call_implies(int type
, int param
, int value
);
614 void sql_insert_function_type_size(const char *member
, const char *ranges
);
615 void sql_insert_local_values(const char *name
, const char *value
);
616 void sql_insert_function_type_value(const char *type
, const char *value
);
618 void sql_select_return_states(const char *cols
, struct expression
*call
,
619 int (*callback
)(void*, int, char**, char**));
620 void sql_select_caller_info(const char *cols
, struct symbol
*sym
,
621 int (*callback
)(void*, int, char**, char**));
622 void sql_select_call_implies(const char *cols
, struct expression
*call
,
623 int (*callback
)(void*, int, char**, char**));
625 void sql_exec(int (*callback
)(void*, int, char**, char**), const char *sql
);
626 void sql_mem_exec(int (*callback
)(void*, int, char**, char**), const char *sql
);
628 void open_smatch_db(void);
631 int open_data_file(const char *filename
);
632 struct token
*get_tokens_file(const char *filename
);
635 extern char *option_debug_check
;
636 extern char *option_project_str
;
637 extern char *data_dir
;
638 extern int option_no_data
;
639 extern int option_spammy
;
640 extern int option_full_path
;
641 extern int option_param_mapper
;
642 extern int option_call_tree
;
643 extern int num_checks
;
650 extern enum project_type option_project
;
651 const char *check_name(unsigned short id
);
654 /* smatch_buf_size.c */
655 int get_array_size(struct expression
*expr
);
656 int get_array_size_bytes(struct expression
*expr
);
657 int get_array_size_bytes_min(struct expression
*expr
);
658 int get_array_size_bytes_max(struct expression
*expr
);
659 struct range_list
*get_array_size_bytes_rl(struct expression
*expr
);
660 int get_real_array_size(struct expression
*expr
);
661 /* smatch_strlen.c */
662 int get_implied_strlen(struct expression
*expr
, struct range_list
**rl
);
663 int get_size_from_strlen(struct expression
*expr
);
665 /* smatch_capped.c */
666 int is_capped(struct expression
*expr
);
667 int is_capped_var_sym(const char *name
, struct symbol
*sym
);
669 /* check_user_data.c */
670 int is_user_macro(struct expression
*expr
);
671 int is_user_data(struct expression
*expr
);
672 int is_capped_user_data(struct expression
*expr
);
674 /* check_locking.c */
675 void print_held_locks();
677 /* check_assigned_expr.c */
678 struct expression
*get_assigned_expr(struct expression
*expr
);
680 /* smatch_comparison.c */
681 int get_comparison(struct expression
*left
, struct expression
*right
);
682 int get_comparison_strings(const char *one
, const char *two
);
683 void __add_comparison_info(struct expression
*expr
, struct expression
*call
, const char *range
);
684 char *expr_equal_to_param(struct expression
*expr
);
685 char *expr_lte_to_param(struct expression
*expr
);
688 sval_t
*sval_alloc(sval_t sval
);
689 sval_t
*sval_alloc_permanent(sval_t sval
);
690 sval_t
sval_blank(struct expression
*expr
);
691 sval_t
sval_type_val(struct symbol
*type
, long long val
);
692 sval_t
sval_from_val(struct expression
*expr
, long long val
);
693 int sval_unsigned(sval_t sval
);
694 int sval_signed(sval_t sval
);
695 int sval_bits(sval_t sval
);
696 int sval_positive_bits(sval_t sval
);
697 int sval_bits_used(sval_t sval
);
698 int sval_is_negative(sval_t sval
);
699 int sval_is_positive(sval_t sval
);
700 int sval_is_min(sval_t sval
);
701 int sval_is_max(sval_t sval
);
702 int sval_is_a_min(sval_t sval
);
703 int sval_is_a_max(sval_t sval
);
704 int sval_is_negative_min(sval_t sval
);
705 int sval_cmp(sval_t one
, sval_t two
);
706 int sval_cmp_t(struct symbol
*type
, sval_t one
, sval_t two
);
707 int sval_cmp_val(sval_t one
, long long val
);
708 sval_t
sval_min(sval_t one
, sval_t two
);
709 sval_t
sval_max(sval_t one
, sval_t two
);
710 int sval_too_low(struct symbol
*type
, sval_t sval
);
711 int sval_too_high(struct symbol
*type
, sval_t sval
);
712 int sval_fits(struct symbol
*type
, sval_t sval
);
713 sval_t
sval_cast(struct symbol
*type
, sval_t sval
);
714 sval_t
sval_preop(sval_t sval
, int op
);
715 sval_t
sval_binop(sval_t left
, int op
, sval_t right
);
716 int sval_binop_overflows(sval_t left
, int op
, sval_t right
);
717 const char *sval_to_str(sval_t sval
);
718 const char *sval_to_numstr(sval_t sval
);
719 sval_t
ll_to_sval(long long val
);
721 /* smatch_string_list.c */
722 int list_has_string(struct string_list
*str_list
, char *str
);
723 void insert_string(struct string_list
**str_list
, char *str
);
724 struct string_list
*clone_str_list(struct string_list
*orig
);
725 struct string_list
*combine_string_lists(struct string_list
*one
, struct string_list
*two
);
727 /* smatch_clear_buffer.c */
728 int is_uninitialized(struct expression
*expr
);
729 int has_uninitialized_members(struct expression
*expr
);
731 /* smatch_start_states.c */
732 struct state_list
*get_start_states(void);
734 /* smatch_recurse.c */
735 int has_symbol(struct expression
*expr
, struct symbol
*sym
);
736 int has_variable(struct expression
*expr
, struct expression
*var
);
737 int has_inc_dec(struct expression
*expr
);
739 /* smatch_stored_conditions.c */
740 struct smatch_state
*get_stored_condition(struct expression
*expr
);
742 /* check_string_len.c */
743 int get_formatted_string_size(struct expression
*call
, int arg
);
745 #endif /* !SMATCH_H_ */