mtcp_sys_open     851 mtcp/mtcp_restart.c       imagefd = mtcp_sys_open (area.name, O_RDONLY, 0);
mtcp_sys_open     227 mtcp/mtcp_sys.h #define mtcp_sys_open2(args...)  mtcp_sys_open(args,0777)
mtcp_sys_open     521 mtcp/mtcp_util.c   int mapsfd = mtcp_sys_open("/proc/self/maps", O_RDONLY, 0);