tools/testing/selftests/bpf/progs/test_fill_link_info.c

Source file repositories/reference/linux-study-clean/tools/testing/selftests/bpf/progs/test_fill_link_info.c

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/bpf/progs/test_fill_link_info.c
Extension
.c
Size
1079 bytes
Lines
62
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2023 Yafang Shao <laoar.shao@gmail.com> */

#include "vmlinux.h"
#include <bpf/bpf_tracing.h>
#include <stdbool.h>

extern bool CONFIG_X86_KERNEL_IBT __kconfig __weak;
extern bool CONFIG_PPC_FTRACE_OUT_OF_LINE __kconfig __weak;
extern bool CONFIG_KPROBES_ON_FTRACE __kconfig __weak;
extern bool CONFIG_PPC64 __kconfig __weak;

/* This function is here to have CONFIG_X86_KERNEL_IBT,
 * CONFIG_PPC_FTRACE_OUT_OF_LINE, CONFIG_KPROBES_ON_FTRACE,
 * CONFIG_PPC64 used and added to object BTF.
 */
int unused(void)
{
	return CONFIG_X86_KERNEL_IBT ||
			CONFIG_PPC_FTRACE_OUT_OF_LINE ||
			CONFIG_KPROBES_ON_FTRACE ||
			CONFIG_PPC64 ? 0 : 1;
}

SEC("kprobe")
int BPF_PROG(kprobe_run)
{
	return 0;
}

SEC("uprobe")
int BPF_PROG(uprobe_run)
{
	return 0;
}

SEC("tracepoint")
int BPF_PROG(tp_run)
{
	return 0;
}

SEC("perf_event")
int event_run(void *ctx)
{
	return 0;
}

SEC("kprobe.multi")
int BPF_PROG(kmulti_run)
{
	return 0;
}

SEC("uprobe.multi")
int BPF_PROG(umulti_run)
{
	return 0;
}

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

Annotation

Implementation Notes