samples/bpf: Update bpf loader for sched section names

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5KUFB
CVE: NA

--------------------------------

Add support for section names starting with sched/.
Signed-off-by: NChen Hui <judy.chenhui@huawei.com>
Signed-off-by: NHui Tang <tanghui20@huawei.com>

samples/bpf/bpf_load.c

@@ -87,6 +87,7 @@ static int load_and_attach(const char *event, struct bpf_insn *prog, int size)
 	bool is_sockops = strncmp(event, "sockops", 7) == 0;
 	bool is_sk_skb = strncmp(event, "sk_skb", 6) == 0;
 	bool is_sk_msg = strncmp(event, "sk_msg", 6) == 0;
+	bool is_sched = strncmp(event, "sched/", 6) == 0;
 	size_t insns_cnt = size / sizeof(struct bpf_insn);
 	enum bpf_prog_type prog_type;
 	char buf[256];
@@ -120,6 +121,8 @@ static int load_and_attach(const char *event, struct bpf_insn *prog, int size)
 		prog_type = BPF_PROG_TYPE_SK_SKB;
 	} else if (is_sk_msg) {
 		prog_type = BPF_PROG_TYPE_SK_MSG;
+	} else if (is_sched) {
+		prog_type = BPF_PROG_TYPE_SCHED;
 	} else {
 		printf("Unknown event '%s'\n", event);
 		return -1;
@@ -137,7 +140,7 @@ static int load_and_attach(const char *event, struct bpf_insn *prog, int size)
 
 	prog_fd[prog_cnt++] = fd;
 
-	if (is_xdp || is_perf_event || is_cgroup_skb || is_cgroup_sk)
+	if (is_xdp || is_perf_event || is_cgroup_skb || is_cgroup_sk || is_sched)
 		return 0;
 
 	if (is_socket || is_sockops || is_sk_skb || is_sk_msg) {
@@ -643,7 +646,8 @@ static int do_load_bpf_file(const char *path, fixup_map_cb fixup_map)
 		    memcmp(shname, "cgroup/", 7) == 0 ||
 		    memcmp(shname, "sockops", 7) == 0 ||
 		    memcmp(shname, "sk_skb", 6) == 0 ||
-		    memcmp(shname, "sk_msg", 6) == 0) {
+		    memcmp(shname, "sk_msg", 6) == 0 ||
+		    memcmp(shname, "sched/", 6) == 0) {
 			ret = load_and_attach(shname, data->d_buf,
 					      data->d_size);
 			if (ret != 0)