static int syms__add_dso()

in helpers/trace_helpers.c [314:362]

• 46 lines of code
• 11 McCabe index (conditional complexity)

static int syms__add_dso(struct syms *syms, struct map *map, const char *name)
{
	struct dso *dso = NULL;
	int i, type;
	void *tmp;

	for (i = 0; i < syms->dso_sz; i++) {
		if (!strcmp(syms->dsos[i].name, name)) {
			dso = &syms->dsos[i];
			break;
		}
	}

	if (!dso) {
		tmp = realloc(syms->dsos, (syms->dso_sz + 1) *
			      sizeof(*syms->dsos));
		if (!tmp)
			return -1;
		syms->dsos = tmp;
		dso = &syms->dsos[syms->dso_sz++];
		memset(dso, 0, sizeof(*dso));
		dso->name = strdup(name);
		dso->btf = btf__new_empty();
	}

	tmp = realloc(dso->ranges, (dso->range_sz + 1) * sizeof(*dso->ranges));
	if (!tmp)
		return -1;
	dso->ranges = tmp;
	dso->ranges[dso->range_sz].start = map->start_addr;
	dso->ranges[dso->range_sz].end = map->end_addr;
	dso->ranges[dso->range_sz].file_off = map->file_off;
	dso->range_sz++;
	type = get_elf_type(name);
	if (type == ET_EXEC) {
		dso->type = EXEC;
	} else if (type == ET_DYN) {
		dso->type = DYN;
		if (get_elf_text_scn_info(name, &dso->sh_addr, &dso->sh_offset) < 0)
			return -1;
	} else if (is_perf_map(name)) {
		dso->type = PERF_MAP;
	} else if (is_vdso(name)) {
		dso->type = VDSO;
	} else {
		dso->type = UNKNOWN;
	}
	return 0;
}