kernel/bpf/stackmap.c

127 static void stack_map_get_build_id_offset(struct bpf_stack_build_id *id_offs,
144 			id_offs[i].status = BPF_STACK_BUILD_ID_IP;
145 			id_offs[i].ip = ips[i];
146 			memset(id_offs[i].build_id, 0, BUILD_ID_SIZE_MAX);
154 			memcpy(id_offs[i].build_id, prev_build_id,
159 		if (!vma || build_id_parse(vma, id_offs[i].build_id, NULL)) {
161 			id_offs[i].status = BPF_STACK_BUILD_ID_IP;
162 			id_offs[i].ip = ips[i];
163 			memset(id_offs[i].build_id, 0, BUILD_ID_SIZE_MAX);
167 		id_offs[i].offset = (vma->vm_pgoff << PAGE_SHIFT) + ips[i]
169 		id_offs[i].status = BPF_STACK_BUILD_ID_VALID;
171 		prev_build_id = id_offs[i].build_id;