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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
#include <vmlinux.h>
#include <bpf/bpf_tracing.h>
#include "../bpf_testmod/bpf_testmod.h"
char _license[] SEC("license") = "GPL";
pid_t tgid = 0;
/* This is a test BPF program that uses struct_ops to access an argument
* that may be NULL. This is a test for the verifier to ensure that it can
* rip PTR_MAYBE_NULL correctly.
*/
SEC("struct_ops/test_maybe_null")
int BPF_PROG(test_maybe_null, int dummy,
struct task_struct *task)
{
if (task)
tgid = task->tgid;
return 0;
}
SEC(".struct_ops.link")
struct bpf_testmod_ops testmod_1 = {
.test_maybe_null = (void *)test_maybe_null,
};
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