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
);
69 DECLARE_PTR_LIST(stree_stack
, struct stree
);
71 /* The first 3 struct members must match struct tracker */
76 unsigned short merged
:1;
77 unsigned short implied
:1;
78 unsigned int nr_children
;
80 struct smatch_state
*state
;
82 struct sm_state
*left
;
83 struct sm_state
*right
;
84 struct state_list
*possible
;
91 DECLARE_ALLOCATOR(var_sym
);
92 DECLARE_PTR_LIST(var_sym_list
, struct var_sym
);
103 GLOBAL_ASSIGNMENT_HOOK
,
108 WHOLE_CONDITION_HOOK
,
110 CALL_HOOK_AFTER_INLINE
,
111 FUNCTION_CALL_HOOK_AFTER
,
112 CALL_ASSIGNMENT_HOOK
,
113 MACRO_ASSIGNMENT_HOOK
,
137 void add_hook(void *func
, enum hook_type type
);
138 typedef struct smatch_state
*(merge_func_t
)(struct smatch_state
*s1
, struct smatch_state
*s2
);
139 typedef struct smatch_state
*(unmatched_func_t
)(struct sm_state
*state
);
140 void add_merge_hook(int client_id
, merge_func_t
*func
);
141 void add_unmatched_state_hook(int client_id
, unmatched_func_t
*func
);
142 void add_pre_merge_hook(int client_id
, void (*hook
)(struct sm_state
*sm
));
143 typedef void (scope_hook
)(void *data
);
144 void add_scope_hook(scope_hook
*hook
, void *data
);
145 typedef void (func_hook
)(const char *fn
, struct expression
*expr
, void *data
);
146 typedef void (implication_hook
)(const char *fn
, struct expression
*call_expr
,
147 struct expression
*assign_expr
, void *data
);
148 typedef void (return_implies_hook
)(struct expression
*call_expr
,
149 int param
, char *key
, char *value
);
150 typedef int (implied_return_hook
)(struct expression
*call_expr
, void *info
, struct range_list
**rl
);
151 void add_function_hook(const char *look_for
, func_hook
*call_back
, void *data
);
153 void add_function_assign_hook(const char *look_for
, func_hook
*call_back
,
155 void add_implied_return_hook(const char *look_for
,
156 implied_return_hook
*call_back
,
158 void add_macro_assign_hook(const char *look_for
, func_hook
*call_back
,
160 void add_macro_assign_hook_extra(const char *look_for
, func_hook
*call_back
,
162 void return_implies_state(const char *look_for
, long long start
, long long end
,
163 implication_hook
*call_back
, void *info
);
164 void select_return_states_hook(int type
, return_implies_hook
*callback
);
165 void select_return_states_before(void (*fn
)(void));
166 void select_return_states_after(void (*fn
)(void));
167 int get_implied_return(struct expression
*expr
, struct range_list
**rl
);
168 void allocate_hook_memory(void);
170 struct modification_data
{
171 struct smatch_state
*prev
;
172 struct expression
*cur
;
175 typedef void (modification_hook
)(struct sm_state
*sm
, struct expression
*mod_expr
);
176 void add_modification_hook(int owner
, modification_hook
*call_back
);
177 void add_indirect_modification_hook(int owner
, modification_hook
*call_back
);
178 struct smatch_state
*get_modification_state(struct expression
*expr
);
180 int outside_of_function(void);
181 const char *get_filename(void);
182 const char *get_base_file(void);
183 char *get_function(void);
184 int get_lineno(void);
185 extern int final_pass
;
186 extern struct symbol
*cur_func_sym
;
187 extern int option_debug
;
188 extern int local_debug
;
189 extern int option_info
;
190 extern char *trace_variable
;
191 extern struct stree
*global_states
;
192 int is_silenced_function(void);
194 extern FILE *sm_outfd
;
195 #define sm_printf(msg...) do { if (final_pass || option_debug || local_debug) fprintf(sm_outfd, msg); } while (0)
197 static inline void sm_prefix(void)
199 sm_printf("%s:%d %s() ", get_filename(), get_lineno(), get_function());
202 static inline void print_implied_debug_msg();
204 #define sm_msg(msg...) \
206 print_implied_debug_msg(); \
207 if (!option_debug && !final_pass && !local_debug) \
209 if (!option_info && is_silenced_function()) \
216 #define local_debug(msg...) \
222 extern char *implied_debug_msg
;
223 static inline void print_implied_debug_msg(void)
225 static struct symbol
*last_printed
= NULL
;
227 if (!implied_debug_msg
)
229 if (last_printed
== cur_func_sym
)
231 last_printed
= cur_func_sym
;
232 sm_msg("%s", implied_debug_msg
);
235 #define sm_debug(msg...) do { if (option_debug) sm_printf(msg); } while (0)
237 #define sm_info(msg...) do { \
238 if (option_debug || (option_info && final_pass)) { \
240 sm_printf("info: "); \
246 struct smatch_state
*get_state(int owner
, const char *name
, struct symbol
*sym
);
247 struct smatch_state
*get_state_expr(int owner
, struct expression
*expr
);
248 struct state_list
*get_possible_states(int owner
, const char *name
,
250 struct state_list
*get_possible_states_expr(int owner
, struct expression
*expr
);
251 struct sm_state
*set_state(int owner
, const char *name
, struct symbol
*sym
,
252 struct smatch_state
*state
);
253 struct sm_state
*set_state_expr(int owner
, struct expression
*expr
,
254 struct smatch_state
*state
);
255 void delete_state(int owner
, const char *name
, struct symbol
*sym
);
256 void delete_state_expr(int owner
, struct expression
*expr
);
257 void set_true_false_states(int owner
, const char *name
, struct symbol
*sym
,
258 struct smatch_state
*true_state
,
259 struct smatch_state
*false_state
);
260 void set_true_false_states_expr(int owner
, struct expression
*expr
,
261 struct smatch_state
*true_state
,
262 struct smatch_state
*false_state
);
264 struct stree
*get_all_states_from_stree(int owner
, struct stree
*source
);
265 struct stree
*get_all_states_stree(int id
);
266 struct stree
*__get_cur_stree(void);
267 int is_reachable(void);
269 /* smatch_helper.c */
270 char *alloc_string(const char *str
);
271 void free_string(char *str
);
272 void append(char *dest
, const char *data
, int buff_len
);
273 void remove_parens(char *str
);
274 struct smatch_state
*alloc_state_num(int num
);
275 struct smatch_state
*alloc_state_str(const char *name
);
276 struct expression
*get_argument_from_call_expr(struct expression_list
*args
,
279 char *expr_to_var(struct expression
*expr
);
280 struct symbol
*expr_to_sym(struct expression
*expr
);
281 char *expr_to_str(struct expression
*expr
);
282 char *expr_to_str_sym(struct expression
*expr
,
283 struct symbol
**sym_ptr
);
284 char *expr_to_var_sym(struct expression
*expr
,
285 struct symbol
**sym_ptr
);
286 char *expr_to_known_chunk_sym(struct expression
*expr
, struct symbol
**sym
);
287 char *expr_to_chunk_sym_vsl(struct expression
*expr
, struct symbol
**sym
, struct var_sym_list
**vsl
);
288 int get_complication_score(struct expression
*expr
);
290 int sym_name_is(const char *name
, struct expression
*expr
);
291 int get_const_value(struct expression
*expr
, sval_t
*sval
);
292 int get_value(struct expression
*expr
, sval_t
*val
);
293 int get_implied_value(struct expression
*expr
, sval_t
*val
);
294 int get_implied_min(struct expression
*expr
, sval_t
*sval
);
295 int get_implied_max(struct expression
*expr
, sval_t
*val
);
296 int get_hard_max(struct expression
*expr
, sval_t
*sval
);
297 int get_fuzzy_min(struct expression
*expr
, sval_t
*min
);
298 int get_fuzzy_max(struct expression
*expr
, sval_t
*max
);
299 int get_absolute_min(struct expression
*expr
, sval_t
*sval
);
300 int get_absolute_max(struct expression
*expr
, sval_t
*sval
);
301 int parse_call_math(struct expression
*expr
, char *math
, sval_t
*val
);
302 int parse_call_math_rl(struct expression
*call
, char *math
, struct range_list
**rl
);
303 char *get_value_in_terms_of_parameter_math(struct expression
*expr
);
304 char *get_value_in_terms_of_parameter_math_var_sym(const char *var
, struct symbol
*sym
);
305 int is_zero(struct expression
*expr
);
306 int known_condition_true(struct expression
*expr
);
307 int known_condition_false(struct expression
*expr
);
308 int implied_condition_true(struct expression
*expr
);
309 int implied_condition_false(struct expression
*expr
);
310 int can_integer_overflow(struct symbol
*type
, struct expression
*expr
);
312 int is_array(struct expression
*expr
);
313 struct expression
*get_array_base(struct expression
*expr
);
314 struct expression
*get_array_offset(struct expression
*expr
);
315 const char *show_state(struct smatch_state
*state
);
316 struct statement
*get_expression_statement(struct expression
*expr
);
317 struct expression
*strip_parens(struct expression
*expr
);
318 struct expression
*strip_expr(struct expression
*expr
);
319 void scoped_state(int my_id
, const char *name
, struct symbol
*sym
);
320 int is_error_return(struct expression
*expr
);
321 int getting_address(void);
322 char *get_member_name(struct expression
*expr
);
323 char *get_fnptr_name(struct expression
*expr
);
324 int cmp_pos(struct position pos1
, struct position pos2
);
325 int positions_eq(struct position pos1
, struct position pos2
);
326 struct statement
*get_current_statement(void);
327 struct statement
*get_prev_statement(void);
328 int get_param_num_from_sym(struct symbol
*sym
);
329 int get_param_num(struct expression
*expr
);
330 int ms_since(struct timeval
*start
);
331 int parent_is_gone_var_sym(const char *name
, struct symbol
*sym
);
332 int parent_is_gone(struct expression
*expr
);
333 int invert_op(int op
);
334 int expr_equiv(struct expression
*one
, struct expression
*two
);
337 struct symbol
*get_real_base_type(struct symbol
*sym
);
338 int type_bits(struct symbol
*type
);
339 int type_bytes(struct symbol
*type
);
340 int type_positive_bits(struct symbol
*type
);
341 struct symbol
*get_pointer_type(struct expression
*expr
);
342 struct symbol
*get_type(struct expression
*expr
);
343 int type_unsigned(struct symbol
*base_type
);
344 int type_signed(struct symbol
*base_type
);
345 int expr_unsigned(struct expression
*expr
);
346 int expr_signed(struct expression
*expr
);
347 int returns_unsigned(struct symbol
*base_type
);
348 int is_pointer(struct expression
*expr
);
349 int returns_pointer(struct symbol
*base_type
);
350 sval_t
sval_type_max(struct symbol
*base_type
);
351 sval_t
sval_type_min(struct symbol
*base_type
);
352 int nr_bits(struct expression
*expr
);
353 int is_void_pointer(struct expression
*expr
);
354 int is_char_pointer(struct expression
*expr
);
355 int is_string(struct expression
*expr
);
356 int is_static(struct expression
*expr
);
357 int is_local_variable(struct expression
*expr
);
358 int types_equiv(struct symbol
*one
, struct symbol
*two
);
360 const char *global_static();
361 struct symbol
*cur_func_return_type(void);
362 struct symbol
*get_arg_type(struct expression
*fn
, int arg
);
363 struct symbol
*get_member_type_from_key(struct expression
*expr
, char *key
);
364 int is_struct(struct expression
*expr
);
365 char *type_to_str(struct symbol
*type
);
367 /* smatch_ignore.c */
368 void add_ignore(int owner
, const char *name
, struct symbol
*sym
);
369 int is_ignored(int owner
, const char *name
, struct symbol
*sym
);
372 struct var_sym
*alloc_var_sym(const char *var
, struct symbol
*sym
);
373 struct var_sym_list
*expr_to_vsl(struct expression
*expr
);
374 void add_var_sym(struct var_sym_list
**list
, const char *var
, struct symbol
*sym
);
375 void add_var_sym_expr(struct var_sym_list
**list
, struct expression
*expr
);
376 void del_var_sym(struct var_sym_list
**list
, const char *var
, struct symbol
*sym
);
377 int in_var_sym_list(struct var_sym_list
*list
, const char *var
, struct symbol
*sym
);
378 struct var_sym_list
*clone_var_sym_list(struct var_sym_list
*from_vsl
);
379 void merge_var_sym_list(struct var_sym_list
**dest
, struct var_sym_list
*src
);
380 struct var_sym_list
*combine_var_sym_lists(struct var_sym_list
*one
, struct var_sym_list
*two
);
381 void free_var_sym_list(struct var_sym_list
**list
);
382 void free_var_syms_and_list(struct var_sym_list
**list
);
385 struct tracker
*alloc_tracker(int owner
, const char *name
, struct symbol
*sym
);
386 void add_tracker(struct tracker_list
**list
, int owner
, const char *name
,
388 void add_tracker_expr(struct tracker_list
**list
, int owner
, struct expression
*expr
);
389 void del_tracker(struct tracker_list
**list
, int owner
, const char *name
,
391 int in_tracker_list(struct tracker_list
*list
, int owner
, const char *name
,
393 void free_tracker_list(struct tracker_list
**list
);
394 void free_trackers_and_list(struct tracker_list
**list
);
396 /* smatch_conditions */
397 int in_condition(void);
401 extern int __in_fake_assign
;
402 void smatch (int argc
, char **argv
);
403 int inside_loop(void);
404 int definitely_inside_loop(void);
405 struct expression
*get_switch_expr(void);
406 int in_expression_statement(void);
407 void __process_post_op_stack(void);
408 void __split_expr(struct expression
*expr
);
409 void __split_stmt(struct statement
*stmt
);
410 extern int __in_function_def
;
411 extern int option_assume_loops
;
412 extern int option_two_passes
;
413 extern int option_no_db
;
414 extern int option_file_output
;
415 extern int option_time
;
416 extern struct expression_list
*big_expression_stack
;
417 extern struct statement_list
*big_statement_stack
;
418 int is_assigned_call(struct expression
*expr
);
419 int inlinable(struct expression
*expr
);
420 extern int __inline_call
;
421 extern struct expression
*__inline_fn
;
422 extern int __in_pre_condition
;
423 extern int __bail_on_rest_of_function
;
424 extern struct statement
*__prev_stmt
;
425 extern struct statement
*__cur_stmt
;
426 extern struct statement
*__next_stmt
;
428 /* smatch_struct_assignment.c */
429 struct expression
*get_faked_expression(void);
430 void __fake_struct_member_assignments(struct expression
*expr
);
432 /* smatch_project.c */
433 int is_no_inline_function(const char *function
);
435 /* smatch_conditions */
436 void __split_whole_condition(struct expression
*expr
);
437 void __handle_logic(struct expression
*expr
);
438 int is_condition(struct expression
*expr
);
439 int __handle_condition_assigns(struct expression
*expr
);
440 int __handle_select_assigns(struct expression
*expr
);
441 int __handle_expr_statement_assigns(struct expression
*expr
);
443 /* smatch_implied.c */
444 extern int option_debug_implied
;
445 extern int option_debug_related
;
446 struct range_list_stack
;
447 struct stree
*__implied_case_stree(struct expression
*switch_expr
,
448 struct expression
*case_expr
,
449 struct expression
*case_to
,
450 struct range_list_stack
**remaining_cases
,
451 struct stree
**raw_stree
);
452 struct range_list
*__get_implied_values(struct expression
*switch_expr
);
453 void overwrite_states_using_pool(struct sm_state
*sm
);
454 void add_pool(struct stree_stack
**pools
, struct stree
*new);
456 /* smatch_extras.c */
457 #define SMATCH_EXTRA 1 /* this is my_id from smatch extra set in smatch.c */
464 extern long long valid_ptr_min
, valid_ptr_max
;
465 extern sval_t valid_ptr_min_sval
, valid_ptr_max_sval
;
466 static const sval_t array_min_sval
= {
470 static const sval_t array_max_sval
= {
474 static const sval_t text_seg_min
= {
476 {.value
= 100000000},
478 static const sval_t text_seg_max
= {
480 {.value
= 177777777},
482 static const sval_t data_seg_min
= {
484 {.value
= 200000000},
486 static const sval_t data_seg_max
= {
488 {.value
= 277777777},
490 static const sval_t bss_seg_min
= {
492 {.value
= 300000000},
494 static const sval_t bss_seg_max
= {
496 {.value
= 377777777},
498 static const sval_t stack_seg_min
= {
500 {.value
= 400000000},
502 static const sval_t stack_seg_max
= {
504 {.value
= 477777777},
506 static const sval_t kmalloc_seg_min
= {
508 {.value
= 500000000},
510 static const sval_t kmalloc_seg_max
= {
512 {.value
= 577777777},
514 static const sval_t vmalloc_seg_min
= {
516 {.value
= 600000000},
518 static const sval_t vmalloc_seg_max
= {
520 {.value
= 677777777},
523 #define STRLEN_MAX_RET 1010101
525 /* smatch_absolute.c */
526 int get_absolute_min_helper(struct expression
*expr
, sval_t
*sval
);
527 int get_absolute_max_helper(struct expression
*expr
, sval_t
*sval
);
529 /* smatch_local_values.c */
530 int get_local_rl(struct expression
*expr
, struct range_list
**rl
);
531 int get_local_max_helper(struct expression
*expr
, sval_t
*sval
);
532 int get_local_min_helper(struct expression
*expr
, sval_t
*sval
);
534 /* smatch_type_value.c */
535 int get_db_type_rl(struct expression
*expr
, struct range_list
**rl
);
537 /* smatch_states.c */
538 void __swap_cur_stree(struct stree
*stree
);
539 void __push_fake_cur_stree();
540 struct stree
*__pop_fake_cur_stree();
541 void __free_fake_cur_stree();
542 void __set_fake_cur_stree_fast(struct stree
*stree
);
543 void __pop_fake_cur_stree_fast(void);
544 void __merge_stree_into_cur(struct stree
*stree
);
546 int unreachable(void);
547 void __set_sm(struct sm_state
*sm
);
548 void __use_orig_if_not_set(struct sm_state
*sm
);
549 void __set_true_false_sm(struct sm_state
*true_state
,
550 struct sm_state
*false_state
);
551 void nullify_path(void);
552 void __match_nullify_path_hook(const char *fn
, struct expression
*expr
,
554 void __unnullify_path(void);
555 int __path_is_null(void);
556 void save_all_states(void);
557 void restore_all_states(void);
558 void free_goto_stack(void);
559 void clear_all_states(void);
561 struct sm_state
*get_sm_state(int owner
, const char *name
,
563 struct sm_state
*get_sm_state_expr(int owner
, struct expression
*expr
);
564 void __push_true_states(void);
565 void __use_false_states(void);
566 void __discard_false_states(void);
567 void __merge_false_states(void);
568 void __merge_true_states(void);
570 void __negate_cond_stacks(void);
571 void __use_pre_cond_states(void);
572 void __use_cond_true_states(void);
573 void __use_cond_false_states(void);
574 void __push_cond_stacks(void);
575 struct stree
*__copy_cond_true_states(void);
576 struct stree
*__copy_cond_false_states(void);
577 struct stree
*__pop_cond_true_stack(void);
578 struct stree
*__pop_cond_false_stack(void);
579 void __and_cond_states(void);
580 void __or_cond_states(void);
581 void __save_pre_cond_states(void);
582 void __discard_pre_cond_states(void);
583 void __use_cond_states(void);
584 extern struct state_list
*__last_base_slist
;
586 void __push_continues(void);
587 void __discard_continues(void);
588 void __process_continues(void);
589 void __merge_continues(void);
591 void __push_breaks(void);
592 void __process_breaks(void);
593 int __has_breaks(void);
594 void __merge_breaks(void);
595 void __use_breaks(void);
597 void __save_switch_states(struct expression
*switch_expr
);
598 void __discard_switches(void);
599 void __merge_switches(struct expression
*switch_expr
, struct expression
*case_expr
, struct expression
*case_to
);
600 void __push_default(void);
601 void __set_default(void);
602 int __pop_default(void);
604 void __push_conditions(void);
605 void __discard_conditions(void);
607 void __save_gotos(const char *name
);
608 void __merge_gotos(const char *name
);
610 void __print_cur_stree(void);
613 void __pass_to_client(void *data
, enum hook_type type
);
614 void __pass_to_client_no_data(enum hook_type type
);
615 void __pass_case_to_client(struct expression
*switch_expr
,
616 struct expression
*case_expr
);
617 int __has_merge_function(int client_id
);
618 struct smatch_state
*__client_merge_function(int owner
,
619 struct smatch_state
*s1
,
620 struct smatch_state
*s2
);
621 struct smatch_state
*__client_unmatched_state_function(struct sm_state
*sm
);
622 void call_pre_merge_hook(struct sm_state
*sm
);
623 void __push_scope_hooks(void);
624 void __call_scope_hooks(void);
626 /* smatch_function_hooks.c */
627 void create_function_hook_hash(void);
628 void __match_initializer_call(struct symbol
*sym
);
634 * Changing these numbers is a pain. Don't do it. If you ever use a
635 * number it can't be re-used right away so there may be gaps.
636 * We select these in order by type so if the order matters, then give
637 * it a number below 100-999,9000-9999 ranges. */
651 LOCK_RELEASED
= 1009,
652 ABSOLUTE_LIMITS
= 1010,
662 UNTRACKED_PARAM
= 1023,
667 /* put random temporary stuff in the 7000-7999 range for testing */
669 USER_DATA_SET
= 9018,
670 USER_DATA_LIMITED
= 9019,
673 void debug_sql(const char *sql
);
674 void debug_mem_sql(const char *sql
);
675 void select_caller_info_hook(void (*callback
)(const char *name
, struct symbol
*sym
, char *key
, char *value
), int type
);
676 void add_member_info_callback(int owner
, void (*callback
)(struct expression
*call
, int param
, char *printed_name
, struct sm_state
*sm
));
677 void add_split_return_callback(void (*fn
)(int return_id
, char *return_ranges
, struct expression
*returned_expr
));
678 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
));
679 void select_call_implies_hook(int type
, void (*callback
)(struct expression
*arg
, char *key
, char *value
));
680 struct range_list
*db_return_vals(struct expression
*expr
);
681 char *return_state_to_var_sym(struct expression
*expr
, int param
, char *key
, struct symbol
**sym
);
682 char *get_variable_from_key(struct expression
*arg
, char *key
, struct symbol
**sym
);
683 const char *get_param_name(struct sm_state
*sm
);
684 char *get_data_info_name(struct expression
*expr
);
686 #define run_sql(call_back, data, sql...) \
688 char sql_txt[1024]; \
691 snprintf(sql_txt, 1024, sql); \
692 debug_sql(sql_txt); \
693 sql_exec(call_back, data, sql_txt); \
696 /* like run_sql() but for the in-memory database */
697 #define mem_sql(call_back, data, sql...) \
699 char sql_txt[1024]; \
701 snprintf(sql_txt, sizeof(sql_txt), sql); \
702 sm_debug("in-mem: %s\n", sql_txt); \
703 debug_mem_sql(sql_txt); \
704 sql_mem_exec(call_back, data, sql_txt); \
707 char *get_static_filter(struct symbol
*sym
);
709 void sql_insert_return_states(int return_id
, const char *return_ranges
,
710 int type
, int param
, const char *key
, const char *value
);
711 void sql_insert_caller_info(struct expression
*call
, int type
, int param
,
712 const char *key
, const char *value
);
713 void sql_insert_function_ptr(const char *fn
, const char *struct_name
);
714 void sql_insert_return_values(const char *return_values
);
715 void sql_insert_call_implies(int type
, int param
, const char *key
, const char *value
);
716 void sql_insert_function_type_size(const char *member
, const char *ranges
);
717 void sql_insert_local_values(const char *name
, const char *value
);
718 void sql_insert_function_type_value(const char *type
, const char *value
);
719 void sql_insert_function_type_info(int param
, const char *value
);
720 void sql_insert_data_info(struct expression
*data
, int type
, const char *value
);
722 void sql_select_return_states(const char *cols
, struct expression
*call
,
723 int (*callback
)(void*, int, char**, char**), void *info
);
724 void sql_select_caller_info(const char *cols
, struct symbol
*sym
,
725 int (*callback
)(void*, int, char**, char**));
726 void sql_select_call_implies(const char *cols
, struct expression
*call
,
727 int (*callback
)(void*, int, char**, char**));
729 void sql_exec(int (*callback
)(void*, int, char**, char**), void *data
, const char *sql
);
730 void sql_mem_exec(int (*callback
)(void*, int, char**, char**), void *data
, const char *sql
);
732 void open_smatch_db(void);
735 int open_data_file(const char *filename
);
736 struct token
*get_tokens_file(const char *filename
);
739 extern char *option_debug_check
;
740 extern char *option_project_str
;
741 extern char *data_dir
;
742 extern int option_no_data
;
743 extern int option_spammy
;
744 extern int option_full_path
;
745 extern int option_param_mapper
;
746 extern int option_call_tree
;
747 extern int num_checks
;
754 extern enum project_type option_project
;
755 const char *check_name(unsigned short id
);
758 /* smatch_buf_size.c */
759 int get_array_size(struct expression
*expr
);
760 int get_array_size_bytes(struct expression
*expr
);
761 int get_array_size_bytes_min(struct expression
*expr
);
762 int get_array_size_bytes_max(struct expression
*expr
);
763 struct range_list
*get_array_size_bytes_rl(struct expression
*expr
);
764 int get_real_array_size(struct expression
*expr
);
765 /* smatch_strlen.c */
766 int get_implied_strlen(struct expression
*expr
, struct range_list
**rl
);
767 int get_size_from_strlen(struct expression
*expr
);
769 /* smatch_capped.c */
770 int is_capped(struct expression
*expr
);
771 int is_capped_var_sym(const char *name
, struct symbol
*sym
);
773 /* check_user_data.c */
774 int is_user_macro(struct expression
*expr
);
775 int is_user_data(struct expression
*expr
);
776 int is_capped_user_data(struct expression
*expr
);
777 int implied_user_data(struct expression
*expr
, struct range_list
**rl
);
778 int get_user_rl(struct expression
*expr
, struct range_list
**rl
);
780 /* check_locking.c */
781 void print_held_locks();
783 /* check_assigned_expr.c */
784 struct expression
*get_assigned_expr(struct expression
*expr
);
785 struct expression
*get_assigned_expr_name_sym(const char *name
, struct symbol
*sym
);
787 /* smatch_comparison.c */
788 struct compare_data
{
790 struct var_sym_list
*vsl1
;
793 struct var_sym_list
*vsl2
;
795 int get_comparison(struct expression
*left
, struct expression
*right
);
796 int get_comparison_strings(const char *one
, const char *two
);
797 int possible_comparison(struct expression
*a
, int comparison
, struct expression
*b
);
798 struct state_list
*get_all_comparisons(struct expression
*expr
);
799 struct state_list
*get_all_possible_equal_comparisons(struct expression
*expr
);
800 void __add_comparison_info(struct expression
*expr
, struct expression
*call
, const char *range
);
801 char *expr_equal_to_param(struct expression
*expr
, int ignore
);
802 char *expr_lte_to_param(struct expression
*expr
, int ignore
);
803 char *expr_param_comparison(struct expression
*expr
, int ignore
);
804 int flip_comparison(int op
);
805 int negate_comparison(int op
);
806 void filter_by_comparison(struct range_list
**rl
, int comparison
, struct range_list
*right
);
807 struct sm_state
*comparison_implication_hook(struct expression
*expr
,
808 struct stree_stack
**true_stack
,
809 struct stree_stack
**false_stack
);
812 sval_t
*sval_alloc(sval_t sval
);
813 sval_t
*sval_alloc_permanent(sval_t sval
);
814 sval_t
sval_blank(struct expression
*expr
);
815 sval_t
sval_type_val(struct symbol
*type
, long long val
);
816 sval_t
sval_from_val(struct expression
*expr
, long long val
);
817 int sval_unsigned(sval_t sval
);
818 int sval_signed(sval_t sval
);
819 int sval_bits(sval_t sval
);
820 int sval_positive_bits(sval_t sval
);
821 int sval_bits_used(sval_t sval
);
822 int sval_is_negative(sval_t sval
);
823 int sval_is_positive(sval_t sval
);
824 int sval_is_min(sval_t sval
);
825 int sval_is_max(sval_t sval
);
826 int sval_is_a_min(sval_t sval
);
827 int sval_is_a_max(sval_t sval
);
828 int sval_is_negative_min(sval_t sval
);
829 int sval_cmp(sval_t one
, sval_t two
);
830 int sval_cmp_t(struct symbol
*type
, sval_t one
, sval_t two
);
831 int sval_cmp_val(sval_t one
, long long val
);
832 sval_t
sval_min(sval_t one
, sval_t two
);
833 sval_t
sval_max(sval_t one
, sval_t two
);
834 int sval_too_low(struct symbol
*type
, sval_t sval
);
835 int sval_too_high(struct symbol
*type
, sval_t sval
);
836 int sval_fits(struct symbol
*type
, sval_t sval
);
837 sval_t
sval_cast(struct symbol
*type
, sval_t sval
);
838 sval_t
sval_preop(sval_t sval
, int op
);
839 sval_t
sval_binop(sval_t left
, int op
, sval_t right
);
840 int sval_binop_overflows(sval_t left
, int op
, sval_t right
);
841 unsigned long long fls_mask(unsigned long long uvalue
);
842 unsigned long long sval_fls_mask(sval_t sval
);
843 const char *sval_to_str(sval_t sval
);
844 const char *sval_to_numstr(sval_t sval
);
845 sval_t
ll_to_sval(long long val
);
847 /* smatch_string_list.c */
848 int list_has_string(struct string_list
*str_list
, const char *str
);
849 void insert_string(struct string_list
**str_list
, const char *str
);
850 struct string_list
*clone_str_list(struct string_list
*orig
);
851 struct string_list
*combine_string_lists(struct string_list
*one
, struct string_list
*two
);
853 /* smatch_start_states.c */
854 struct stree
*get_start_states(void);
856 /* smatch_recurse.c */
857 int has_symbol(struct expression
*expr
, struct symbol
*sym
);
858 int has_variable(struct expression
*expr
, struct expression
*var
);
859 int has_inc_dec(struct expression
*expr
);
861 /* smatch_stored_conditions.c */
862 struct smatch_state
*get_stored_condition(struct expression
*expr
);
863 struct sm_state
*stored_condition_implication_hook(struct expression
*expr
,
864 struct stree_stack
**true_stack
,
865 struct stree_stack
**false_stack
);
867 /* check_string_len.c */
868 int get_formatted_string_size(struct expression
*call
, int arg
);
870 /* smatch_param_set.c */
871 int param_was_set(struct expression
*expr
);
872 /* smatch_param_filter.c */
873 int param_has_filter_data(struct sm_state
*sm
);
876 void set_up_link_functions(int id
, int linkid
);
877 struct smatch_state
*merge_link_states(struct smatch_state
*s1
, struct smatch_state
*s2
);
878 void store_link(int link_id
, const char *name
, struct symbol
*sym
, const char *link_name
, struct symbol
*link_sym
);
880 /* smatch_auto_copy.c */
881 void set_auto_copy(int owner
);
883 /* check_buf_comparison */
884 struct expression
*get_size_variable(struct expression
*buf
);
886 /* smatch_untracked_param.c */
887 void add_untracked_param_hook(void (func
)(struct expression
*call
, int param
));
889 /* smatch_impossible.c */
890 int is_impossible_path(void);
892 /* smatch_strings.c */
893 struct state_list
*get_strings(struct expression
*expr
);
895 /* smatch_estate.c */
896 int estate_get_single_value(struct smatch_state
*state
, sval_t
*sval
);
898 /* smatch_address.c */
899 int get_address_rl(struct expression
*expr
, struct range_list
**rl
);
901 /* for now this is in smatch_used_parameter.c */
902 void __get_state_hook(int owner
, const char *name
, struct symbol
*sym
);
904 /* smatch_buf_comparison.c */
905 int db_var_is_array_limit(struct expression
*array
, const char *name
, struct var_sym_list
*vsl
);
907 #endif /* !SMATCH_H_ */