2 * sparse/smatch_extra.h
4 * Copyright (C) 2009 Dan Carpenter.
6 * Licensed under the Open Software License version 1.1
14 DECLARE_PTR_LIST(range_list
, struct data_range
);
15 DECLARE_PTR_LIST(range_list_stack
, struct range_list
);
23 DECLARE_PTR_LIST(related_list
, struct relation
);
26 struct related_list
*related
;
28 struct range_list
*value_ranges
;
29 unsigned int hard_max
:1;
31 DECLARE_ALLOCATOR(data_info
);
33 extern struct string_list
*__ignored_macros
;
35 /* these are implemented in smatch_ranges.c */
36 char *show_rl(struct range_list
*list
);
37 void str_to_rl(struct symbol
*type
, char *value
, struct range_list
**rl
);
39 struct data_range
*alloc_range(sval_t min
, sval_t max
);
40 struct data_range
*alloc_range_perm(sval_t min
, sval_t max
);
42 struct range_list
*alloc_rl(sval_t min
, sval_t max
);
43 struct range_list
*clone_rl(struct range_list
*list
);
44 struct range_list
*clone_rl_permanent(struct range_list
*list
);
45 struct range_list
*alloc_whole_rl(struct symbol
*type
);
47 void add_range(struct range_list
**list
, sval_t min
, sval_t max
);
48 struct range_list
*remove_range(struct range_list
*list
, sval_t min
, sval_t max
);
49 void tack_on(struct range_list
**list
, struct data_range
*drange
);
51 int true_comparison_range(struct data_range
*left
, int comparison
, struct data_range
*right
);
52 int true_comparison_range_LR(int comparison
, struct data_range
*var
, struct data_range
*val
, int left
);
53 int false_comparison_range_LR(int comparison
, struct data_range
*var
, struct data_range
*val
, int left
);
55 int possibly_true(struct expression
*left
, int comparison
, struct expression
*right
);
56 int possibly_true_rl(struct range_list
*left_ranges
, int comparison
, struct range_list
*right_ranges
);
57 int possibly_true_rl_LR(int comparison
, struct range_list
*a
, struct range_list
*b
, int left
);
59 int possibly_false(struct expression
*left
, int comparison
, struct expression
*right
);
60 int possibly_false_rl(struct range_list
*left_ranges
, int comparison
, struct range_list
*right_ranges
);
61 int possibly_false_rl_LR(int comparison
, struct range_list
*a
, struct range_list
*b
, int left
);
63 int ranges_equiv(struct data_range
*one
, struct data_range
*two
);
65 int rl_equiv(struct range_list
*one
, struct range_list
*two
);
66 int is_whole_rl(struct range_list
*rl
);
68 sval_t
rl_min(struct range_list
*rl
);
69 sval_t
rl_max(struct range_list
*rl
);
71 struct range_list
*rl_invert(struct range_list
*orig
);
72 struct range_list
*rl_filter(struct range_list
*rl
, struct range_list
*filter
);
73 struct range_list
*rl_intersection(struct range_list
*one
, struct range_list
*two
);
74 struct range_list
*rl_union(struct range_list
*one
, struct range_list
*two
);
76 void push_rl(struct range_list_stack
**rl_stack
, struct range_list
*rl
);
77 struct range_list
*pop_rl(struct range_list_stack
**rl_stack
);
78 struct range_list
*top_rl(struct range_list_stack
*rl_stack
);
79 void filter_top_rl(struct range_list_stack
**rl_stack
, sval_t sval
);
81 struct range_list
*cast_rl(struct symbol
*type
, struct range_list
*rl
);
82 int get_implied_rl(struct expression
*expr
, struct range_list
**rl
);
84 void free_rl(struct range_list
**rlist
);
85 void free_data_info_allocs(void);
89 struct smatch_state
*alloc_estate_empty(void);
90 struct smatch_state
*alloc_estate_sval(sval_t sval
);
91 struct smatch_state
*alloc_estate_range(sval_t min
, sval_t max
);
92 struct smatch_state
*alloc_estate_rl(struct range_list
*rl
);
93 struct smatch_state
*alloc_estate_whole(struct symbol
*type
);
94 struct smatch_state
*clone_estate(struct smatch_state
*state
);
96 struct smatch_state
*merge_estates(struct smatch_state
*s1
, struct smatch_state
*s2
);
98 int estates_equiv(struct smatch_state
*one
, struct smatch_state
*two
);
99 int estate_is_whole(struct smatch_state
*state
);
101 struct range_list
*estate_rl(struct smatch_state
*state
);
102 struct related_list
*estate_related(struct smatch_state
*state
);
104 sval_t
estate_min(struct smatch_state
*state
);
105 sval_t
estate_max(struct smatch_state
*state
);
106 struct symbol
*estate_type(struct smatch_state
*state
);
108 int estate_has_hard_max(struct smatch_state
*state
);
109 void estate_set_hard_max(struct smatch_state
*state
);
110 void estate_clear_hard_max(struct smatch_state
*state
);
111 int estate_get_hard_max(struct smatch_state
*state
, sval_t
*sval
);
113 int estate_get_single_value(struct smatch_state
*state
, sval_t
*sval
);
114 struct smatch_state
*get_implied_estate(struct expression
*expr
);
116 struct smatch_state
*estate_filter_sval(struct smatch_state
*orig
, sval_t filter
);
117 struct smatch_state
*estate_filter_range(struct smatch_state
*orig
, sval_t filter_min
, sval_t filter_max
);
120 struct sm_state
*set_extra_mod(const char *name
, struct symbol
*sym
, struct smatch_state
*state
);
121 struct sm_state
*set_extra_expr_mod(struct expression
*expr
, struct smatch_state
*state
);
122 void set_extra_expr_nomod(struct expression
*expr
, struct smatch_state
*state
);
124 struct data_info
*get_dinfo(struct smatch_state
*state
);
126 void add_extra_mod_hook(void (*fn
)(const char *name
, struct symbol
*sym
, struct smatch_state
*state
));
127 int implied_not_equal(struct expression
*expr
, long long val
);
129 struct sm_state
*__extra_handle_canonical_loops(struct statement
*loop
, struct state_list
**slist
);
130 int __iterator_unchanged(struct sm_state
*sm
);
131 void __extra_pre_loop_hook_after(struct sm_state
*sm
,
132 struct statement
*iterator
,
133 struct expression
*condition
);
135 /* smatch_constraints.c */
136 void set_equiv(struct expression
*left
, struct expression
*right
);
137 void set_related(struct smatch_state
*estate
, struct related_list
*rlist
);
138 struct related_list
*get_shared_relations(struct related_list
*one
,
139 struct related_list
*two
);
140 struct related_list
*clone_related_list(struct related_list
*related
);
141 void remove_from_equiv(const char *name
, struct symbol
*sym
);
142 void remove_from_equiv_expr(struct expression
*expr
);
143 void set_equiv_state_expr(int id
, struct expression
*expr
, struct smatch_state
*state
);
145 /* smatch_function_hooks.c */
146 void function_comparison(int comparison
, struct expression
*expr
, sval_t sval
, int left
);
148 /* smatch_expressions.c */
149 struct expression
*zero_expr();
150 struct expression
*value_expr(long long val
);
151 struct expression
*deref_expression(struct expression
*deref
, int op
, struct ident
*member
);
152 struct expression
*assign_expression(struct expression
*left
, struct expression
*right
);
153 struct expression
*symbol_expression(struct symbol
*sym
);