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.
8 *
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.
13 *
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 #include "smatch.h"
19 #include <unistd.h>
20
21 static int my_id;
22
23 static unsigned long max_size;
24
25 static void match_end_func(struct symbol *sym)
26 {
27 FILE *file;
28 char buf[1024];
29 unsigned long size;
30
31 file = fopen("/proc/self/statm", "r");
32 if (!file)
33 return;
34 fread(buf, 1, sizeof(buf), file);
35 fclose(file);
36
37 size = strtoul(buf, NULL, 10);
38 size = size * sysconf(_SC_PAGESIZE) / 1024;
39 if (size > max_size)
40 max_size = size;
41 }
42
43 unsigned long get_max_memory(void)
44 {
45 return max_size;
46 }
47
48 void register_mem_tracker(int id)
49 {
50 my_id = id;
51
52 add_hook(&match_end_func, END_FUNC_HOOK);
53 }
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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.
8 *
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.
13 *
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 #include "smatch.h"
19 #include <unistd.h>
20
21 static int my_id;
22
23 static unsigned long max_size;
24
25 unsigned long get_mem_kb(void)
26 {
27 FILE *file;
28 char buf[1024];
29 unsigned long size;
30
31 file = fopen("/proc/self/statm", "r");
32 if (!file)
33 return 0;
34 fread(buf, 1, sizeof(buf), file);
35 fclose(file);
36
37 size = strtoul(buf, NULL, 10);
38 size = size * sysconf(_SC_PAGESIZE) / 1024;
39 return size;
40 }
41
42 static void match_end_func(struct symbol *sym)
43 {
44 unsigned long size;
45
46 if (option_mem) {
47 size = get_mem_kb();
48 if (size > max_size)
49 max_size = size;
50 }
51 }
52
53 unsigned long get_max_memory(void)
54 {
55 return max_size;
56 }
57
58 void register_mem_tracker(int id)
59 {
60 my_id = id;
61
62 add_hook(&match_end_func, END_FUNC_HOOK);
63 }
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