2 * Copyright (C) 2016 Oracle.
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
19 * What we're doing here is saving all the possible values for static variables.
20 * Later on we might do globals as well.
25 #include "smatch_slist.h"
26 #include "smatch_extra.h"
29 static struct stree
*vals
;
31 static int save_rl(void *_rl
, int argc
, char **argv
, char **azColName
)
33 unsigned long *rl
= _rl
;
35 *rl
= strtoul(argv
[0], NULL
, 10);
39 static struct range_list
*select_orig_rl(mtag_t tag
, const char *data_name
)
41 struct range_list
*rl
= NULL
;
43 mem_sql(&save_rl
, &rl
, "select value from mtag_data where tag = %lld and data = '%s';",
48 static int is_kernel_param(const char *name
)
54 * I'm ignoring these because otherwise Smatch thinks that kernel
55 * parameters are always set to the default.
59 if (option_project
!= PROJ_KERNEL
)
62 snprintf(buf
, sizeof(buf
), "__param_%s.arg", name
);
64 FOR_EACH_SM(vals
, tmp
) {
65 if (strcmp(tmp
->name
, buf
) == 0)
67 } END_FOR_EACH_SM(tmp
);
72 void insert_mtag_data(mtag_t tag
, const char *data_name
, int offset
, struct range_list
*rl
)
74 rl
= clone_rl_permanent(rl
);
76 mem_sql(NULL
, NULL
, "insert into mtag_data values (%lld, '%s', %d, %d, '%lu');",
77 tag
, data_name
, offset
, DATA_VALUE
, (unsigned long)rl
);
80 static void extra_mod_hook(const char *name
, struct symbol
*sym
, struct expression
*expr
, struct smatch_state
*state
)
82 struct range_list
*orig
, *new;
87 if (is_kernel_param(name
))
89 if (!expr_to_mtag_name_offset(expr
, &tag
, &data_name
, &offset
))
92 orig
= select_orig_rl(tag
, data_name
);
93 new = rl_union(orig
, estate_rl(state
));
94 insert_mtag_data(tag
, data_name
, offset
, new);
97 static int save_mtag_data(void *_unused
, int argc
, char **argv
, char **azColName
)
99 struct range_list
*rl
;
102 sm_msg("Error saving mtag data");
106 rl
= (struct range_list
*)strtoul(argv
[4], NULL
, 10);
109 sm_msg("SQL: insert into mtag_data values ('%s', '%s', '%s', '%s', '%s');",
110 argv
[0], argv
[1], argv
[2], argv
[3], show_rl(rl
));
116 static void match_end_file(struct symbol_list
*sym_list
)
118 mem_sql(&save_mtag_data
, NULL
, "select * from mtag_data;");
123 struct range_list
*rl
;
126 static int get_vals(void *_db_info
, int argc
, char **argv
, char **azColName
)
128 struct db_info
*db_info
= _db_info
;
129 struct range_list
*tmp
;
131 str_to_rl(db_info
->type
, argv
[0], &tmp
);
133 db_info
->rl
= rl_union(db_info
->rl
, tmp
);
140 int get_db_data_rl(struct expression
*expr
, struct range_list
**rl
)
143 struct db_info db_info
= {};
146 if (!get_toplevel_mtag(expr_to_sym(expr
), &tag
))
149 name
= get_mtag_name_expr(expr
);
153 db_info
.type
= get_type(expr
);
156 run_sql(get_vals
, &db_info
,
157 "select value from mtag_data where tag = %lld and data = '%s' and type = %d;",
158 tag
, name
, DATA_VALUE
);
159 if (!db_info
.rl
|| is_whole_rl(db_info
.rl
))
166 void register_mtag_data(int id
)
173 add_extra_mod_hook(&extra_mod_hook
);
175 add_hook(&match_end_file
, END_FILE_HOOK
);