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11506 smatch resync
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--- old/usr/src/tools/smatch/src/smatch_extra.h
+++ new/usr/src/tools/smatch/src/smatch_extra.h
1 1 /*
2 2 * Copyright (C) 2009 Dan Carpenter.
3 3 *
4 4 * This program is free software; you can redistribute it and/or
5 5 * modify it under the terms of the GNU General Public License
6 6 * as published by the Free Software Foundation; either version 2
7 7 * of the License, or (at your option) any later version.
8 8 *
9 9 * This program is distributed in the hope that it will be useful,
10 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 12 * GNU General Public License for more details.
13 13 *
14 14 * You should have received a copy of the GNU General Public License
15 15 * along with this program; if not, see http://www.gnu.org/copyleft/gpl.txt
16 16 */
17 17
18 18 DECLARE_PTR_LIST(range_list, struct data_range);
19 19 DECLARE_PTR_LIST(range_list_stack, struct range_list);
20 20
21 21 struct relation {
22 22 char *name;
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23 23 struct symbol *sym;
24 24 };
25 25
26 26 DECLARE_PTR_LIST(related_list, struct relation);
27 27
28 28 struct data_info {
29 29 struct related_list *related;
30 30 struct range_list *value_ranges;
31 31 sval_t fuzzy_max;
32 32 unsigned int hard_max:1;
33 + unsigned int capped:1;
33 34 };
34 35 DECLARE_ALLOCATOR(data_info);
35 36
36 37 extern struct string_list *__ignored_macros;
37 38
38 39 /* these are implemented in smatch_ranges.c */
39 40 struct range_list *rl_zero(void);
40 41 struct range_list *rl_one(void);
41 42 char *show_rl(struct range_list *list);
42 43 int str_to_comparison_arg(const char *c, struct expression *call, int *comparison, struct expression **arg);
43 44 void str_to_rl(struct symbol *type, char *value, struct range_list **rl);
44 -void call_results_to_rl(struct expression *call, 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);
45 46
46 47 struct data_range *alloc_range(sval_t min, sval_t max);
47 48 struct data_range *alloc_range_perm(sval_t min, sval_t max);
48 49
50 +int rl_fits_in_type(struct range_list *rl, struct symbol *type);
51 +
49 52 struct range_list *alloc_rl(sval_t min, sval_t max);
50 53 struct range_list *clone_rl(struct range_list *list);
51 54 struct range_list *clone_rl_permanent(struct range_list *list);
52 55 struct range_list *alloc_whole_rl(struct symbol *type);
53 56
54 57 void add_range(struct range_list **list, sval_t min, sval_t max);
55 58 struct range_list *remove_range(struct range_list *list, sval_t min, sval_t max);
56 59 void tack_on(struct range_list **list, struct data_range *drange);
57 60
58 61 int true_comparison_range(struct data_range *left, int comparison, struct data_range *right);
59 62 int true_comparison_range_LR(int comparison, struct data_range *var, struct data_range *val, int left);
60 63 int false_comparison_range_LR(int comparison, struct data_range *var, struct data_range *val, int left);
61 64
62 65 int possibly_true(struct expression *left, int comparison, struct expression *right);
63 66 int possibly_true_rl(struct range_list *left_ranges, int comparison, struct range_list *right_ranges);
64 67 int possibly_true_rl_LR(int comparison, struct range_list *a, struct range_list *b, int left);
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65 68
66 69 int possibly_false(struct expression *left, int comparison, struct expression *right);
67 70 int possibly_false_rl(struct range_list *left_ranges, int comparison, struct range_list *right_ranges);
68 71 int possibly_false_rl_LR(int comparison, struct range_list *a, struct range_list *b, int left);
69 72
70 73 int rl_has_sval(struct range_list *rl, sval_t sval);
71 74 int ranges_equiv(struct data_range *one, struct data_range *two);
72 75
73 76 int rl_equiv(struct range_list *one, struct range_list *two);
74 77 int is_whole_rl(struct range_list *rl);
78 +int is_unknown_ptr(struct range_list *rl);
75 79 int is_whole_rl_non_zero(struct range_list *rl);
76 80 int estate_is_unknown(struct smatch_state *state);
77 81
78 82 sval_t rl_min(struct range_list *rl);
79 83 sval_t rl_max(struct range_list *rl);
80 84 int rl_to_sval(struct range_list *rl, sval_t *sval);
81 85 struct symbol *rl_type(struct range_list *rl);
82 86
83 -struct range_list *rl_invert(struct range_list *orig);
84 87 struct range_list *rl_filter(struct range_list *rl, struct range_list *filter);
85 88 struct range_list *rl_intersection(struct range_list *one, struct range_list *two);
86 89 struct range_list *rl_union(struct range_list *one, struct range_list *two);
87 90 struct range_list *rl_binop(struct range_list *left, int op, struct range_list *right);
88 91
89 92 void push_rl(struct range_list_stack **rl_stack, struct range_list *rl);
90 93 struct range_list *pop_rl(struct range_list_stack **rl_stack);
91 94 struct range_list *top_rl(struct range_list_stack *rl_stack);
92 95 void filter_top_rl(struct range_list_stack **rl_stack, struct range_list *filter);
93 96
94 97 struct range_list *rl_truncate_cast(struct symbol *type, struct range_list *rl);
95 98 struct range_list *cast_rl(struct symbol *type, struct range_list *rl);
96 99 int get_implied_rl(struct expression *expr, struct range_list **rl);
97 100 int get_absolute_rl(struct expression *expr, struct range_list **rl);
98 101 int get_real_absolute_rl(struct expression *expr, struct range_list **rl);
99 102 struct range_list *var_to_absolute_rl(struct expression *expr);
100 103 int custom_get_absolute_rl(struct expression *expr,
101 104 struct range_list *(*fn)(struct expression *expr),
102 105 struct range_list **rl);
103 106 int get_implied_rl_var_sym(const char *var, struct symbol *sym, struct range_list **rl);
104 107 void split_comparison_rl(struct range_list *left_orig, int op, struct range_list *right_orig,
105 108 struct range_list **left_true_rl, struct range_list **left_false_rl,
106 109 struct range_list **right_true_rl, struct range_list **right_false_rl);
107 110
108 111 void free_data_info_allocs(void);
109 112 void free_all_rl(void);
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110 113
111 114 /* smatch_estate.c */
112 115
113 116 struct smatch_state *alloc_estate_empty(void);
114 117 struct smatch_state *alloc_estate_sval(sval_t sval);
115 118 struct smatch_state *alloc_estate_range(sval_t min, sval_t max);
116 119 struct smatch_state *alloc_estate_rl(struct range_list *rl);
117 120 struct smatch_state *alloc_estate_whole(struct symbol *type);
118 121 struct smatch_state *clone_estate(struct smatch_state *state);
119 122 struct smatch_state *clone_estate_cast(struct symbol *type, struct smatch_state *state);
123 +struct smatch_state *clone_partial_estate(struct smatch_state *state, struct range_list *rl);
120 124
121 125 struct smatch_state *merge_estates(struct smatch_state *s1, struct smatch_state *s2);
122 126
123 127 int estates_equiv(struct smatch_state *one, struct smatch_state *two);
124 128 int estate_is_whole(struct smatch_state *state);
125 129 int estate_is_empty(struct smatch_state *state);
126 130
127 131 struct range_list *estate_rl(struct smatch_state *state);
128 132 struct related_list *estate_related(struct smatch_state *state);
129 133
130 134 sval_t estate_min(struct smatch_state *state);
131 135 sval_t estate_max(struct smatch_state *state);
132 136 struct symbol *estate_type(struct smatch_state *state);
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133 137
134 138 int estate_has_fuzzy_max(struct smatch_state *state);
135 139 sval_t estate_get_fuzzy_max(struct smatch_state *state);
136 140 void estate_set_fuzzy_max(struct smatch_state *state, sval_t max);
137 141 void estate_copy_fuzzy_max(struct smatch_state *new, struct smatch_state *old);
138 142 void estate_clear_fuzzy_max(struct smatch_state *state);
139 143 int estate_has_hard_max(struct smatch_state *state);
140 144 void estate_set_hard_max(struct smatch_state *state);
141 145 void estate_clear_hard_max(struct smatch_state *state);
142 146 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);
143 149
144 150 int estate_get_single_value(struct smatch_state *state, sval_t *sval);
145 151 struct smatch_state *get_implied_estate(struct expression *expr);
146 152
147 153 struct smatch_state *estate_filter_sval(struct smatch_state *orig, sval_t filter);
148 -struct smatch_state *estate_filter_range(struct smatch_state *orig, sval_t filter_min, sval_t filter_max);
149 154 struct data_info *clone_dinfo_perm(struct data_info *dinfo);
150 155 struct smatch_state *clone_estate_perm(struct smatch_state *state);
151 156
152 157 /* smatch_extra.c */
153 158 bool is_impossible_variable(struct expression *expr);
154 159 struct sm_state *get_extra_sm_state(struct expression *expr);
155 160 struct smatch_state *get_extra_state(struct expression *expr);
156 161 void call_extra_mod_hooks(const char *name, struct symbol *sym, struct expression *expr, struct smatch_state *state);
157 162 void set_extra_mod(const char *name, struct symbol *sym, struct expression *expr, struct smatch_state *state);
158 163 void set_extra_expr_mod(struct expression *expr, struct smatch_state *state);
159 164 void set_extra_nomod(const char *name, struct symbol *sym, struct expression *expr, struct smatch_state *state);
160 165 void set_extra_nomod_vsl(const char *name, struct symbol *sym, struct var_sym_list *vsl, struct expression *expr, struct smatch_state *state);
161 166 void set_extra_expr_nomod(struct expression *expr, struct smatch_state *state);
162 167 void set_extra_mod_helper(const char *name, struct symbol *sym, struct expression *expr, struct smatch_state *state);
163 168
164 169 struct data_info *get_dinfo(struct smatch_state *state);
165 170
166 171 void add_extra_mod_hook(void (*fn)(const char *name, struct symbol *sym, struct expression *expr, struct smatch_state *state));
167 172 void add_extra_nomod_hook(void (*fn)(const char *name, struct symbol *sym, struct expression *expr, struct smatch_state *state));
168 173 int implied_not_equal(struct expression *expr, long long val);
169 174 int implied_not_equal_name_sym(char *name, struct symbol *sym, long long val);
170 175 int parent_is_null_var_sym(const char *name, struct symbol *sym);
171 176 int parent_is_null(struct expression *expr);
172 177 int parent_is_free_var_sym_strict(const char *name, struct symbol *sym);
173 178 int parent_is_free_var_sym(const char *name, struct symbol *sym);
174 179 int parent_is_free(struct expression *expr);
175 180
176 181 struct sm_state *__extra_handle_canonical_loops(struct statement *loop, struct stree **stree);
177 182 int __iterator_unchanged(struct sm_state *sm);
178 183 void __extra_pre_loop_hook_after(struct sm_state *sm,
179 184 struct statement *iterator,
180 185 struct expression *condition);
181 186
182 187 /* smatch_equiv.c */
183 188 void set_equiv(struct expression *left, struct expression *right);
184 189 void set_related(struct smatch_state *estate, struct related_list *rlist);
185 190 struct related_list *get_shared_relations(struct related_list *one,
186 191 struct related_list *two);
187 192 struct related_list *clone_related_list(struct related_list *related);
188 193 void remove_from_equiv(const char *name, struct symbol *sym);
189 194 void remove_from_equiv_expr(struct expression *expr);
190 195 void set_equiv_state_expr(int id, struct expression *expr, struct smatch_state *state);
191 196
192 197 /* smatch_function_hooks.c */
193 198 void function_comparison(struct expression *left, int comparison, struct expression *right);
194 199
195 200 /* smatch_expressions.c */
196 201 struct expression *zero_expr();
197 202 struct expression *value_expr(long long val);
198 203 struct expression *member_expression(struct expression *deref, int op, struct ident *member);
199 204 struct expression *preop_expression(struct expression *expr, int op);
200 205 struct expression *deref_expression(struct expression *expr);
201 206 struct expression *assign_expression(struct expression *left, int op, struct expression *right);
202 207 struct expression *binop_expression(struct expression *left, int op, struct expression *right);
203 208 struct expression *array_element_expression(struct expression *array, struct expression *offset);
204 209 struct expression *symbol_expression(struct symbol *sym);
205 210 struct expression *string_expression(char *str);
206 211 struct expression *compare_expression(struct expression *left, int op, struct expression *right);
207 212 struct expression *unknown_value_expression(struct expression *expr);
208 213 int is_fake_call(struct expression *expr);
209 214 struct expression *gen_expression_from_key(struct expression *arg, const char *key);
210 215 void free_tmp_expressions(void);
211 216 void expr_set_parent_expr(struct expression *expr, struct expression *parent);
212 217 void expr_set_parent_stmt(struct expression *expr, struct statement *parent);
213 218 struct expression *expr_get_parent_expr(struct expression *expr);
214 219 struct statement *expr_get_parent_stmt(struct expression *expr);
215 220
216 221 /* smatch_param_limit.c */
217 222 struct smatch_state *get_orig_estate(const char *name, struct symbol *sym);
218 223
219 224 /* smatch_real_absolute.c */
220 225 struct smatch_state *get_real_absolute_state(struct expression *expr);
221 226 struct smatch_state *get_real_absolute_state_var_sym(const char *name, struct symbol *sym);
222 227
223 228 /* smatch_imaginary_absolute.c */
224 229 void __save_imaginary_state(struct expression *expr, struct range_list *true_rl, struct range_list *false_rl);
225 230 int get_imaginary_absolute(struct expression *expr, struct range_list **rl);
226 231
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