linux/tools/testing/selftests/bpf/progs/test_overhead.c
Andrii Nakryiko df8ff35311 libbpf: Merge selftests' bpf_trace_helpers.h into libbpf's bpf_tracing.h
Move BPF_PROG, BPF_KPROBE, and BPF_KRETPROBE macro into libbpf's bpf_tracing.h
header to make it available for non-selftests users.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200229231112.1240137-5-andriin@fb.com
2020-03-02 16:25:14 -08:00

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C

// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2019 Facebook */
#include <stdbool.h>
#include <stddef.h>
#include <linux/bpf.h>
#include <linux/ptrace.h>
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
struct task_struct;
SEC("kprobe/__set_task_comm")
int BPF_KPROBE(prog1, struct task_struct *tsk, const char *buf, bool exec)
{
return !tsk;
}
SEC("kretprobe/__set_task_comm")
int BPF_KRETPROBE(prog2, int ret)
{
return ret;
}
SEC("raw_tp/task_rename")
int prog3(struct bpf_raw_tracepoint_args *ctx)
{
return !ctx->args[0];
}
SEC("fentry/__set_task_comm")
int BPF_PROG(prog4, struct task_struct *tsk, const char *buf, bool exec)
{
return !tsk;
}
SEC("fexit/__set_task_comm")
int BPF_PROG(prog5, struct task_struct *tsk, const char *buf, bool exec)
{
return !tsk;
}
char _license[] SEC("license") = "GPL";