// SPDX-License-Identifier: GPL-2.0

#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include "bpf_misc.h"

struct {
        __uint(type, BPF_MAP_TYPE_ARRAY);
        __uint(max_entries, 1);
        __type(key, __u32);
        __type(value, __u32);
} map_array SEC(".maps");

SEC("socket")
__description("invalid map type for tail call")
__failure __msg("expected prog array map for tail call")
__failure_unpriv
__naked void invalid_map_for_tail_call(void)
{
        asm volatile ("                 \
        r2 = %[map_array] ll;   \
        r3 = 0;                         \
        call %[bpf_tail_call];          \
        exit;                           \
"       :
        : __imm(bpf_tail_call),
          __imm_addr(map_array)
        : __clobber_all);
}

char _license[] SEC("license") = "GPL";