JustOS/linux-6.13/tools/testing/selftests/bpf/progs/struct_ops_detach.c

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2025-01-24 14:00:19 +00:00
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
#include <vmlinux.h>
#include <bpf/bpf_helpers.h>
#include "../bpf_testmod/bpf_testmod.h"
char _license[] SEC("license") = "GPL";
/*
* This subprogram validates that libbpf handles the situation in which BPF
* object has subprograms in .text section, but has no entry BPF programs.
* At some point that was causing issues due to legacy logic of treating such
* subprogram as entry program (with unknown program type, which would fail).
*/
int dangling_subprog(void)
{
/* do nothing, just be here */
return 0;
}
SEC(".struct_ops.link")
struct bpf_testmod_ops testmod_do_detach;