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11871 smatch should not hammer linux procfs path
Reviewed by: John Levon <john.levon@joyent.com>
*** 14,44 ****
* You should have received a copy of the GNU General Public License
* along with this program; if not, see http://www.gnu.org/copyleft/gpl.txt
*/
#include "smatch.h"
#include <unistd.h>
static int my_id;
static unsigned long max_size;
unsigned long get_mem_kb(void)
{
! FILE *file;
! char buf[1024];
! unsigned long size;
! file = fopen("/proc/self/statm", "r");
! if (!file)
! return 0;
! fread(buf, 1, sizeof(buf), file);
! fclose(file);
! size = strtoul(buf, NULL, 10);
! size = size * sysconf(_SC_PAGESIZE) / 1024;
! return size;
}
static void match_end_func(struct symbol *sym)
{
unsigned long size;
--- 14,49 ----
* You should have received a copy of the GNU General Public License
* along with this program; if not, see http://www.gnu.org/copyleft/gpl.txt
*/
#include "smatch.h"
+ #include <fcntl.h>
#include <unistd.h>
+ #include <sys/procfs.h>
static int my_id;
+ static int my_fd = -2;
static unsigned long max_size;
unsigned long get_mem_kb(void)
{
! prpsinfo_t pbuf;
! if (my_fd == -2) {
! /* Do not repeatedly attempt this if it fails. */
! my_fd = open("/proc/self/psinfo", O_RDONLY);
! }
! if (my_fd == -1) {
! return (0);
! }
! if (pread(my_fd, &pbuf, sizeof (pbuf), 0) != sizeof (pbuf)) {
! return (0);
! }
!
! return (pbuf.pr_rssize);
}
static void match_end_func(struct symbol *sym)
{
unsigned long size;