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11972 resync smatch
@@ -105,10 +105,11 @@
unsigned long long possible;
};
enum hook_type {
EXPR_HOOK,
+ EXPR_HOOK_AFTER,
STMT_HOOK,
STMT_HOOK_AFTER,
SYM_HOOK,
STRING_HOOK,
DECLARATION_HOOK,
@@ -154,11 +155,11 @@
void add_hook(void *func, enum hook_type type);
typedef struct smatch_state *(merge_func_t)(struct smatch_state *s1, struct smatch_state *s2);
typedef struct smatch_state *(unmatched_func_t)(struct sm_state *state);
void add_merge_hook(int client_id, merge_func_t *func);
void add_unmatched_state_hook(int client_id, unmatched_func_t *func);
-void add_pre_merge_hook(int client_id, void (*hook)(struct sm_state *sm));
+void add_pre_merge_hook(int client_id, void (*hook)(struct sm_state *cur, struct sm_state *other));
typedef void (scope_hook)(void *data);
void add_scope_hook(scope_hook *hook, void *data);
typedef void (func_hook)(const char *fn, struct expression *expr, void *data);
typedef void (implication_hook)(const char *fn, struct expression *call_expr,
struct expression *assign_expr, void *data);
@@ -203,10 +204,11 @@
int get_lineno(void);
extern int final_pass;
extern struct symbol *cur_func_sym;
extern int option_debug;
extern int local_debug;
+bool debug_implied(void);
extern int option_info;
extern int option_spammy;
extern int option_timeout;
extern char *trace_variable;
extern struct stree *global_states;
@@ -365,10 +367,11 @@
void add_get_state_hook(void (*fn)(int owner, const char *name, struct symbol *sym));
/* smatch_helper.c */
DECLARE_PTR_LIST(int_stack, int);
char *alloc_string(const char *str);
+char *alloc_string_newline(const char *str);
void free_string(char *str);
void append(char *dest, const char *data, int buff_len);
void remove_parens(char *str);
struct smatch_state *alloc_state_num(int num);
struct smatch_state *alloc_state_str(const char *name);
@@ -399,19 +402,22 @@
int get_fuzzy_max(struct expression *expr, sval_t *max);
int get_absolute_min(struct expression *expr, sval_t *sval);
int get_absolute_max(struct expression *expr, sval_t *sval);
int parse_call_math(struct expression *expr, char *math, sval_t *val);
int parse_call_math_rl(struct expression *call, const char *math, struct range_list **rl);
+const char *get_allocation_math(struct expression *expr);
char *get_value_in_terms_of_parameter_math(struct expression *expr);
char *get_value_in_terms_of_parameter_math_var_sym(const char *var, struct symbol *sym);
-int is_zero(struct expression *expr);
+int expr_is_zero(struct expression *expr);
int known_condition_true(struct expression *expr);
int known_condition_false(struct expression *expr);
int implied_condition_true(struct expression *expr);
int implied_condition_false(struct expression *expr);
int can_integer_overflow(struct symbol *type, struct expression *expr);
void clear_math_cache(void);
+void set_fast_math_only(void);
+void clear_fast_math_only(void);
int is_array(struct expression *expr);
struct expression *get_array_base(struct expression *expr);
struct expression *get_array_offset(struct expression *expr);
const char *show_state(struct smatch_state *state);
@@ -419,11 +425,11 @@
struct expression *strip_parens(struct expression *expr);
struct expression *strip_expr(struct expression *expr);
struct expression *strip_expr_set_parent(struct expression *expr);
void scoped_state(int my_id, const char *name, struct symbol *sym);
int is_error_return(struct expression *expr);
-int getting_address(void);
+int getting_address(struct expression *expr);
int get_struct_and_member(struct expression *expr, const char **type, const char **member);
char *get_member_name(struct expression *expr);
char *get_fnptr_name(struct expression *expr);
int cmp_pos(struct position pos1, struct position pos2);
int positions_eq(struct position pos1, struct position pos2);
@@ -460,11 +466,11 @@
int nr_bits(struct expression *expr);
int is_void_pointer(struct expression *expr);
int is_char_pointer(struct expression *expr);
int is_string(struct expression *expr);
int is_static(struct expression *expr);
-int is_local_variable(struct expression *expr);
+bool is_local_variable(struct expression *expr);
int types_equiv(struct symbol *one, struct symbol *two);
int fn_static(void);
const char *global_static();
struct symbol *cur_func_return_type(void);
struct symbol *get_arg_type(struct expression *fn, int arg);
@@ -522,10 +528,11 @@
void __process_post_op_stack(void);
void __split_expr(struct expression *expr);
void __split_label_stmt(struct statement *stmt);
void __split_stmt(struct statement *stmt);
extern int __in_function_def;
+extern int __in_unmatched_hook;
extern int option_assume_loops;
extern int option_two_passes;
extern int option_no_db;
extern int option_file_output;
extern int option_time;
@@ -671,32 +678,29 @@
/* smatch_absolute.c */
int get_absolute_min_helper(struct expression *expr, sval_t *sval);
int get_absolute_max_helper(struct expression *expr, sval_t *sval);
-/* smatch_local_values.c */
-int get_local_rl(struct expression *expr, struct range_list **rl);
-int get_local_max_helper(struct expression *expr, sval_t *sval);
-int get_local_min_helper(struct expression *expr, sval_t *sval);
-
/* smatch_type_value.c */
int get_db_type_rl(struct expression *expr, struct range_list **rl);
/* smatch_data_val.c */
int get_mtag_rl(struct expression *expr, struct range_list **rl);
/* smatch_array_values.c */
int get_array_rl(struct expression *expr, struct range_list **rl);
/* smatch_states.c */
-void __swap_cur_stree(struct stree *stree);
+struct stree *__swap_cur_stree(struct stree *stree);
void __push_fake_cur_stree();
struct stree *__pop_fake_cur_stree();
void __free_fake_cur_stree();
void __set_fake_cur_stree_fast(struct stree *stree);
void __pop_fake_cur_stree_fast(void);
void __merge_stree_into_cur(struct stree *stree);
int unreachable(void);
+void __set_cur_stree_readonly(void);
+void __set_cur_stree_writable(void);
void __set_sm(struct sm_state *sm);
void __set_sm_cur_stree(struct sm_state *sm);
void __set_sm_fake_stree(struct sm_state *sm);
void __set_true_false_sm(struct sm_state *true_state,
struct sm_state *false_state);
@@ -766,19 +770,18 @@
void __print_cur_stree(void);
/* smatch_hooks.c */
void __pass_to_client(void *data, enum hook_type type);
-void __pass_to_client_no_data(enum hook_type type);
void __pass_case_to_client(struct expression *switch_expr,
struct range_list *rl);
int __has_merge_function(int client_id);
struct smatch_state *__client_merge_function(int owner,
struct smatch_state *s1,
struct smatch_state *s2);
struct smatch_state *__client_unmatched_state_function(struct sm_state *sm);
-void call_pre_merge_hook(struct sm_state *sm);
+void call_pre_merge_hook(struct sm_state *cur, struct sm_state *other);
void __push_scope_hooks(void);
void __call_scope_hooks(void);
/* smatch_function_hooks.c */
void create_function_hook_hash(void);
@@ -872,10 +875,11 @@
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));
void select_call_implies_hook(int type, void (*callback)(struct expression *call, struct expression *arg, char *key, char *value));
void select_return_implies_hook(int type, void (*callback)(struct expression *call, struct expression *arg, char *key, char *value));
struct range_list *db_return_vals(struct expression *expr);
struct range_list *db_return_vals_from_str(const char *fn_name);
+struct range_list *db_return_vals_no_args(struct expression *expr);
char *return_state_to_var_sym(struct expression *expr, int param, const char *key, struct symbol **sym);
char *get_chunk_from_key(struct expression *arg, char *key, struct symbol **sym, struct var_sym_list **vsl);
char *get_variable_from_key(struct expression *arg, const char *key, struct symbol **sym);
const char *state_name_to_param_name(const char *state_name, const char *param_name);
const char *get_param_name_var_sym(const char *name, struct symbol *sym);
@@ -1056,10 +1060,12 @@
/* smatch_return_to_param.c */
void __add_return_to_param_mapping(struct expression *assign, const char *return_string);
char *map_call_to_param_name_sym(struct expression *expr, struct symbol **sym);
/* smatch_comparison.c */
+#define UNKNOWN_COMPARISON 0
+#define IMPOSSIBLE_COMPARISON -1
struct compare_data {
/* The ->left and ->right expression pointers might be NULL (I'm lazy) */
struct expression *left;
const char *left_var;
struct var_sym_list *left_vsl;
@@ -1073,11 +1079,11 @@
struct expression *left,
const char *left_var, struct var_sym_list *left_vsl,
int comparison,
struct expression *right,
const char *right_var, struct var_sym_list *right_vsl);
-int filter_comparison(int orig, int op);
+int comparison_intersection(int orig, int op);
int merge_comparisons(int one, int two);
int combine_comparisons(int left_compare, int right_compare);
int state_to_comparison(struct smatch_state *state);
struct smatch_state *merge_compare_states(struct smatch_state *s1, struct smatch_state *s2);
int get_comparison(struct expression *left, struct expression *right);
@@ -1171,21 +1177,19 @@
int get_formatted_string_min_size(struct expression *call, int arg);
/* smatch_param_set.c */
int param_was_set(struct expression *expr);
int param_was_set_var_sym(const char *name, struct symbol *sym);
+void print_limited_param_set(int return_id, char *return_ranges, struct expression *expr);
/* smatch_param_filter.c */
int param_has_filter_data(struct sm_state *sm);
/* smatch_links.c */
void set_up_link_functions(int id, int linkid);
struct smatch_state *merge_link_states(struct smatch_state *s1, struct smatch_state *s2);
void store_link(int link_id, const char *name, struct symbol *sym, const char *link_name, struct symbol *link_sym);
-/* smatch_auto_copy.c */
-void set_auto_copy(int owner);
-
/* check_buf_comparison */
const char *limit_type_str(unsigned int limit_type);
struct expression *get_size_variable(struct expression *buf, int *limit_type);
struct expression *get_array_variable(struct expression *size);
int buf_comparison_index_ok(struct expression *expr);
@@ -1233,17 +1237,18 @@
/* smatch_mtag.c */
int get_string_mtag(struct expression *expr, mtag_t *tag);
int get_toplevel_mtag(struct symbol *sym, mtag_t *tag);
int create_mtag_alias(mtag_t tag, struct expression *expr, mtag_t *new);
int expr_to_mtag_offset(struct expression *expr, mtag_t *tag, int *offset);
-void update_mtag_data(struct expression *expr);
+void update_mtag_data(struct expression *expr, struct smatch_state *state);
int get_mtag_sval(struct expression *expr, sval_t *sval);
/* Trinity fuzzer stuff */
const char *get_syscall_arg_type(struct symbol *sym);
/* smatch_bit_info.c */
+struct bit_info *rl_to_binfo(struct range_list *rl);
struct bit_info *get_bit_info(struct expression *expr);
struct bit_info *get_bit_info_var_sym(const char *name, struct symbol *sym);
/* smatch_mem_tracker.c */
extern int option_mem;
unsigned long get_mem_kb(void);
@@ -1252,10 +1257,11 @@
/* check_is_nospec.c */
bool is_nospec(struct expression *expr);
long get_stmt_cnt(void);
/* smatch_nul_terminator.c */
+bool is_nul_terminated_var_sym(const char *name, struct symbol *sym);
bool is_nul_terminated(struct expression *expr);
/* check_kernel.c */
bool is_ignored_kernel_data(const char *name);
static inline bool type_is_ptr(struct symbol *type)