1 /* SPDX-License-Identifier: GPL-2.0 */
8 #define MLOCK_ONFAULT 1
12 #define MCL_ONFAULT (MCL_FUTURE << 1)
15 static int mlock2_(void *start, size_t len, int flags)
18 return syscall(__NR_mlock2, start, len, flags);
25 static FILE *seek_to_smaps_entry(unsigned long addr)
30 unsigned long start, end;
37 file = fopen("/proc/self/smaps", "r");
39 perror("fopen smaps");
43 while (getline(&line, &size, file) > 0) {
44 if (sscanf(line, "%lx-%lx %s %lx %s %lu %s\n",
45 &start, &end, perms, &offset, dev, &inode, path) < 6)
48 if (start <= addr && addr < end)