Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) static int find_map(void **start, void **end, const char *name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 	FILE *maps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 	char line[128];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 	int found = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 	maps = fopen("/proc/self/maps", "r");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 	if (!maps) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 		fprintf(stderr, "cannot open maps\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 		return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	while (!found && fgets(line, sizeof(line), maps)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 		int m = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 		/* We care only about private r-x mappings. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 		if (2 != sscanf(line, "%p-%p r-xp %*x %*x:%*x %*u %n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 				start, end, &m))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 		if (m < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 		if (!strncmp(&line[m], name, strlen(name)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 			found = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	fclose(maps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	return !found;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) }