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
16 */
17
18 DECLARE_PTR_LIST(range_list, struct data_range);
19 DECLARE_PTR_LIST(range_list_stack, struct range_list);
20
21 struct relation {
22 char *name;
23 struct symbol *sym;
24 };
25
26 DECLARE_PTR_LIST(related_list, struct relation);
27
28 struct data_info {
29 struct related_list *related;
30 struct range_list *value_ranges;
31 sval_t fuzzy_max;
32 unsigned int hard_max:1;
33 unsigned int capped:1;
34 };
35 DECLARE_ALLOCATOR(data_info);
36
37 extern struct string_list *__ignored_macros;
38
39 /* these are implemented in smatch_ranges.c */
40 struct range_list *rl_zero(void);
41 struct range_list *rl_one(void);
42 char *show_rl(struct range_list *list);
43 int str_to_comparison_arg(const char *c, struct expression *call, int *comparison, struct expression **arg);
44 void str_to_rl(struct symbol *type, char *value, struct range_list **rl);
45 void call_results_to_rl(struct expression *call, struct symbol *type, const char *value, struct range_list **rl);
46
47 struct data_range *alloc_range(sval_t min, sval_t max);
48 struct data_range *alloc_range_perm(sval_t min, sval_t max);
49
50 int rl_fits_in_type(struct range_list *rl, struct symbol *type);
51
52 struct range_list *alloc_rl(sval_t min, sval_t max);
53 struct range_list *clone_rl(struct range_list *list);
56
57 void add_range(struct range_list **list, sval_t min, sval_t max);
58 struct range_list *remove_range(struct range_list *list, sval_t min, sval_t max);
59 void tack_on(struct range_list **list, struct data_range *drange);
60
61 int true_comparison_range(struct data_range *left, int comparison, struct data_range *right);
62 int true_comparison_range_LR(int comparison, struct data_range *var, struct data_range *val, int left);
63 int false_comparison_range_LR(int comparison, struct data_range *var, struct data_range *val, int left);
64
65 int possibly_true(struct expression *left, int comparison, struct expression *right);
66 int possibly_true_rl(struct range_list *left_ranges, int comparison, struct range_list *right_ranges);
67 int possibly_true_rl_LR(int comparison, struct range_list *a, struct range_list *b, int left);
68
69 int possibly_false(struct expression *left, int comparison, struct expression *right);
70 int possibly_false_rl(struct range_list *left_ranges, int comparison, struct range_list *right_ranges);
71 int possibly_false_rl_LR(int comparison, struct range_list *a, struct range_list *b, int left);
72
73 int rl_has_sval(struct range_list *rl, sval_t sval);
74 int ranges_equiv(struct data_range *one, struct data_range *two);
75
76 int rl_equiv(struct range_list *one, struct range_list *two);
77 int is_whole_rl(struct range_list *rl);
78 int is_unknown_ptr(struct range_list *rl);
79 int is_whole_rl_non_zero(struct range_list *rl);
80 int estate_is_unknown(struct smatch_state *state);
81
82 sval_t rl_min(struct range_list *rl);
83 sval_t rl_max(struct range_list *rl);
84 int rl_to_sval(struct range_list *rl, sval_t *sval);
85 struct symbol *rl_type(struct range_list *rl);
86
87 struct range_list *rl_filter(struct range_list *rl, struct range_list *filter);
88 struct range_list *rl_intersection(struct range_list *one, struct range_list *two);
89 struct range_list *rl_union(struct range_list *one, struct range_list *two);
90 struct range_list *rl_binop(struct range_list *left, int op, struct range_list *right);
91
92 void push_rl(struct range_list_stack **rl_stack, struct range_list *rl);
93 struct range_list *pop_rl(struct range_list_stack **rl_stack);
94 struct range_list *top_rl(struct range_list_stack *rl_stack);
95 void filter_top_rl(struct range_list_stack **rl_stack, struct range_list *filter);
129 int estate_is_empty(struct smatch_state *state);
130
131 struct range_list *estate_rl(struct smatch_state *state);
132 struct related_list *estate_related(struct smatch_state *state);
133
134 sval_t estate_min(struct smatch_state *state);
135 sval_t estate_max(struct smatch_state *state);
136 struct symbol *estate_type(struct smatch_state *state);
137
138 int estate_has_fuzzy_max(struct smatch_state *state);
139 sval_t estate_get_fuzzy_max(struct smatch_state *state);
140 void estate_set_fuzzy_max(struct smatch_state *state, sval_t max);
141 void estate_copy_fuzzy_max(struct smatch_state *new, struct smatch_state *old);
142 void estate_clear_fuzzy_max(struct smatch_state *state);
143 int estate_has_hard_max(struct smatch_state *state);
144 void estate_set_hard_max(struct smatch_state *state);
145 void estate_clear_hard_max(struct smatch_state *state);
146 int estate_get_hard_max(struct smatch_state *state, sval_t *sval);
147 bool estate_capped(struct smatch_state *state);
148 void estate_set_capped(struct smatch_state *state);
149
150 int estate_get_single_value(struct smatch_state *state, sval_t *sval);
151 struct smatch_state *get_implied_estate(struct expression *expr);
152
153 struct smatch_state *estate_filter_sval(struct smatch_state *orig, sval_t filter);
154 struct data_info *clone_dinfo_perm(struct data_info *dinfo);
155 struct smatch_state *clone_estate_perm(struct smatch_state *state);
156
157 /* smatch_extra.c */
158 bool is_impossible_variable(struct expression *expr);
159 struct sm_state *get_extra_sm_state(struct expression *expr);
160 struct smatch_state *get_extra_state(struct expression *expr);
161 void call_extra_mod_hooks(const char *name, struct symbol *sym, struct expression *expr, struct smatch_state *state);
162 void set_extra_mod(const char *name, struct symbol *sym, struct expression *expr, struct smatch_state *state);
163 void set_extra_expr_mod(struct expression *expr, struct smatch_state *state);
164 void set_extra_nomod(const char *name, struct symbol *sym, struct expression *expr, struct smatch_state *state);
165 void set_extra_nomod_vsl(const char *name, struct symbol *sym, struct var_sym_list *vsl, struct expression *expr, struct smatch_state *state);
166 void set_extra_expr_nomod(struct expression *expr, struct smatch_state *state);
167 void set_extra_mod_helper(const char *name, struct symbol *sym, struct expression *expr, struct smatch_state *state);
168
194 void remove_from_equiv_expr(struct expression *expr);
195 void set_equiv_state_expr(int id, struct expression *expr, struct smatch_state *state);
196
197 /* smatch_function_hooks.c */
198 void function_comparison(struct expression *left, int comparison, struct expression *right);
199
200 /* smatch_expressions.c */
201 struct expression *zero_expr();
202 struct expression *value_expr(long long val);
203 struct expression *member_expression(struct expression *deref, int op, struct ident *member);
204 struct expression *preop_expression(struct expression *expr, int op);
205 struct expression *deref_expression(struct expression *expr);
206 struct expression *assign_expression(struct expression *left, int op, struct expression *right);
207 struct expression *binop_expression(struct expression *left, int op, struct expression *right);
208 struct expression *array_element_expression(struct expression *array, struct expression *offset);
209 struct expression *symbol_expression(struct symbol *sym);
210 struct expression *string_expression(char *str);
211 struct expression *compare_expression(struct expression *left, int op, struct expression *right);
212 struct expression *unknown_value_expression(struct expression *expr);
213 int is_fake_call(struct expression *expr);
214 struct expression *gen_expression_from_key(struct expression *arg, const char *key);
215 void free_tmp_expressions(void);
216 void expr_set_parent_expr(struct expression *expr, struct expression *parent);
217 void expr_set_parent_stmt(struct expression *expr, struct statement *parent);
218 struct expression *expr_get_parent_expr(struct expression *expr);
219 struct statement *expr_get_parent_stmt(struct expression *expr);
220
221 /* smatch_param_limit.c */
222 struct smatch_state *get_orig_estate(const char *name, struct symbol *sym);
223
224 /* smatch_real_absolute.c */
225 struct smatch_state *get_real_absolute_state(struct expression *expr);
226 struct smatch_state *get_real_absolute_state_var_sym(const char *name, struct symbol *sym);
227
228 /* smatch_imaginary_absolute.c */
229 void __save_imaginary_state(struct expression *expr, struct range_list *true_rl, struct range_list *false_rl);
230 int get_imaginary_absolute(struct expression *expr, struct range_list **rl);
231
|
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
16 */
17
18 DECLARE_PTR_LIST(range_list, struct data_range);
19 DECLARE_PTR_LIST(range_list_stack, struct range_list);
20
21 struct relation {
22 char *name;
23 struct symbol *sym;
24 };
25
26 DECLARE_PTR_LIST(related_list, struct relation);
27
28 struct data_info {
29 struct related_list *related;
30 struct range_list *value_ranges;
31 sval_t fuzzy_max;
32 unsigned int hard_max:1;
33 unsigned int capped:1;
34 unsigned int treat_untagged:1;
35 };
36 DECLARE_ALLOCATOR(data_info);
37
38 extern struct string_list *__ignored_macros;
39
40 /* these are implemented in smatch_ranges.c */
41 struct range_list *rl_zero(void);
42 struct range_list *rl_one(void);
43 char *show_rl(struct range_list *list);
44 int str_to_comparison_arg(const char *c, struct expression *call, int *comparison, struct expression **arg);
45 void str_to_rl(struct symbol *type, char *value, struct range_list **rl);
46 void call_results_to_rl(struct expression *call, struct symbol *type, const char *value, struct range_list **rl);
47
48 struct data_range *alloc_range(sval_t min, sval_t max);
49 struct data_range *alloc_range_perm(sval_t min, sval_t max);
50
51 int rl_fits_in_type(struct range_list *rl, struct symbol *type);
52
53 struct range_list *alloc_rl(sval_t min, sval_t max);
54 struct range_list *clone_rl(struct range_list *list);
57
58 void add_range(struct range_list **list, sval_t min, sval_t max);
59 struct range_list *remove_range(struct range_list *list, sval_t min, sval_t max);
60 void tack_on(struct range_list **list, struct data_range *drange);
61
62 int true_comparison_range(struct data_range *left, int comparison, struct data_range *right);
63 int true_comparison_range_LR(int comparison, struct data_range *var, struct data_range *val, int left);
64 int false_comparison_range_LR(int comparison, struct data_range *var, struct data_range *val, int left);
65
66 int possibly_true(struct expression *left, int comparison, struct expression *right);
67 int possibly_true_rl(struct range_list *left_ranges, int comparison, struct range_list *right_ranges);
68 int possibly_true_rl_LR(int comparison, struct range_list *a, struct range_list *b, int left);
69
70 int possibly_false(struct expression *left, int comparison, struct expression *right);
71 int possibly_false_rl(struct range_list *left_ranges, int comparison, struct range_list *right_ranges);
72 int possibly_false_rl_LR(int comparison, struct range_list *a, struct range_list *b, int left);
73
74 int rl_has_sval(struct range_list *rl, sval_t sval);
75 int ranges_equiv(struct data_range *one, struct data_range *two);
76
77 bool is_err_ptr(sval_t sval);
78
79 int rl_equiv(struct range_list *one, struct range_list *two);
80 int is_whole_rl(struct range_list *rl);
81 int is_unknown_ptr(struct range_list *rl);
82 int is_whole_rl_non_zero(struct range_list *rl);
83 int estate_is_unknown(struct smatch_state *state);
84
85 sval_t rl_min(struct range_list *rl);
86 sval_t rl_max(struct range_list *rl);
87 int rl_to_sval(struct range_list *rl, sval_t *sval);
88 struct symbol *rl_type(struct range_list *rl);
89
90 struct range_list *rl_filter(struct range_list *rl, struct range_list *filter);
91 struct range_list *rl_intersection(struct range_list *one, struct range_list *two);
92 struct range_list *rl_union(struct range_list *one, struct range_list *two);
93 struct range_list *rl_binop(struct range_list *left, int op, struct range_list *right);
94
95 void push_rl(struct range_list_stack **rl_stack, struct range_list *rl);
96 struct range_list *pop_rl(struct range_list_stack **rl_stack);
97 struct range_list *top_rl(struct range_list_stack *rl_stack);
98 void filter_top_rl(struct range_list_stack **rl_stack, struct range_list *filter);
132 int estate_is_empty(struct smatch_state *state);
133
134 struct range_list *estate_rl(struct smatch_state *state);
135 struct related_list *estate_related(struct smatch_state *state);
136
137 sval_t estate_min(struct smatch_state *state);
138 sval_t estate_max(struct smatch_state *state);
139 struct symbol *estate_type(struct smatch_state *state);
140
141 int estate_has_fuzzy_max(struct smatch_state *state);
142 sval_t estate_get_fuzzy_max(struct smatch_state *state);
143 void estate_set_fuzzy_max(struct smatch_state *state, sval_t max);
144 void estate_copy_fuzzy_max(struct smatch_state *new, struct smatch_state *old);
145 void estate_clear_fuzzy_max(struct smatch_state *state);
146 int estate_has_hard_max(struct smatch_state *state);
147 void estate_set_hard_max(struct smatch_state *state);
148 void estate_clear_hard_max(struct smatch_state *state);
149 int estate_get_hard_max(struct smatch_state *state, sval_t *sval);
150 bool estate_capped(struct smatch_state *state);
151 void estate_set_capped(struct smatch_state *state);
152 bool estate_treat_untagged(struct smatch_state *state);
153 void estate_set_treat_untagged(struct smatch_state *state);
154
155 int estate_get_single_value(struct smatch_state *state, sval_t *sval);
156 struct smatch_state *get_implied_estate(struct expression *expr);
157
158 struct smatch_state *estate_filter_sval(struct smatch_state *orig, sval_t filter);
159 struct data_info *clone_dinfo_perm(struct data_info *dinfo);
160 struct smatch_state *clone_estate_perm(struct smatch_state *state);
161
162 /* smatch_extra.c */
163 bool is_impossible_variable(struct expression *expr);
164 struct sm_state *get_extra_sm_state(struct expression *expr);
165 struct smatch_state *get_extra_state(struct expression *expr);
166 void call_extra_mod_hooks(const char *name, struct symbol *sym, struct expression *expr, struct smatch_state *state);
167 void set_extra_mod(const char *name, struct symbol *sym, struct expression *expr, struct smatch_state *state);
168 void set_extra_expr_mod(struct expression *expr, struct smatch_state *state);
169 void set_extra_nomod(const char *name, struct symbol *sym, struct expression *expr, struct smatch_state *state);
170 void set_extra_nomod_vsl(const char *name, struct symbol *sym, struct var_sym_list *vsl, struct expression *expr, struct smatch_state *state);
171 void set_extra_expr_nomod(struct expression *expr, struct smatch_state *state);
172 void set_extra_mod_helper(const char *name, struct symbol *sym, struct expression *expr, struct smatch_state *state);
173
199 void remove_from_equiv_expr(struct expression *expr);
200 void set_equiv_state_expr(int id, struct expression *expr, struct smatch_state *state);
201
202 /* smatch_function_hooks.c */
203 void function_comparison(struct expression *left, int comparison, struct expression *right);
204
205 /* smatch_expressions.c */
206 struct expression *zero_expr();
207 struct expression *value_expr(long long val);
208 struct expression *member_expression(struct expression *deref, int op, struct ident *member);
209 struct expression *preop_expression(struct expression *expr, int op);
210 struct expression *deref_expression(struct expression *expr);
211 struct expression *assign_expression(struct expression *left, int op, struct expression *right);
212 struct expression *binop_expression(struct expression *left, int op, struct expression *right);
213 struct expression *array_element_expression(struct expression *array, struct expression *offset);
214 struct expression *symbol_expression(struct symbol *sym);
215 struct expression *string_expression(char *str);
216 struct expression *compare_expression(struct expression *left, int op, struct expression *right);
217 struct expression *unknown_value_expression(struct expression *expr);
218 int is_fake_call(struct expression *expr);
219 struct expression *gen_expression_from_name_sym(const char *name, struct symbol *sym);
220 struct expression *gen_expression_from_key(struct expression *arg, const char *key);
221 void free_tmp_expressions(void);
222 void expr_set_parent_expr(struct expression *expr, struct expression *parent);
223 void expr_set_parent_stmt(struct expression *expr, struct statement *parent);
224 struct expression *expr_get_parent_expr(struct expression *expr);
225 struct statement *expr_get_parent_stmt(struct expression *expr);
226
227 /* smatch_param_limit.c */
228 struct smatch_state *get_orig_estate(const char *name, struct symbol *sym);
229
230 /* smatch_real_absolute.c */
231 struct smatch_state *get_real_absolute_state(struct expression *expr);
232 struct smatch_state *get_real_absolute_state_var_sym(const char *name, struct symbol *sym);
233
234 /* smatch_imaginary_absolute.c */
235 void __save_imaginary_state(struct expression *expr, struct range_list *true_rl, struct range_list *false_rl);
236 int get_imaginary_absolute(struct expression *expr, struct range_list **rl);
237
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