[linux-2.6-block.git] / tools / perf / util / find-map.c

// SPDX-License-Identifier: GPL-2.0
static int find_map(void **start, void **end, const char *name)
{
	FILE *maps;
	char line[128];
	int found = 0;

	maps = fopen("/proc/self/maps", "r");
	if (!maps) {
		fprintf(stderr, "cannot open maps\n");
		return -1;
	}

	while (!found && fgets(line, sizeof(line), maps)) {
		int m = -1;

		/* We care only about private r-x mappings. */
		if (2 != sscanf(line, "%p-%p r-xp %*x %*x:%*x %*u %n",
				start, end, &m))
			continue;
		if (m < 0)
			continue;

		if (!strncmp(&line[m], name, strlen(name)))
			found = 1;
	}

	fclose(maps);
	return !found;
}
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
01153237	2	static int find_map(void start, void end, const char *name)
e477f3f0 AH	3	{
	4	FILE *maps;
	5	char line[128];
	6	int found = 0;
	7
	8	maps = fopen("/proc/self/maps", "r");
	9	if (!maps) {
01153237	10	fprintf(stderr, "cannot open maps\n");
e477f3f0 AH	11	return -1;
	12	}
	13
	14	while (!found && fgets(line, sizeof(line), maps)) {
	15	int m = -1;
	16
	17	/* We care only about private r-x mappings. */
	18	if (2 != sscanf(line, "%p-%p r-xp %x %x:%x %u %n",
	19	start, end, &m))
	20	continue;
	21	if (m < 0)
	22	continue;
	23
01153237	24	if (!strncmp(&line[m], name, strlen(name)))
e477f3f0 AH	25	found = 1;
	26	}
	27
	28	fclose(maps);
	29	return !found;
	30	}