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

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

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/bpf/progs/test_attach_kprobe_sleepable.c
Extension
.c
Size
500 bytes
Lines
24
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) 2017 Facebook

#include "vmlinux.h"
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
#include <bpf/bpf_core_read.h>
#include "bpf_misc.h"

int kprobe_res = 0;

/**
 * This program will be manually made sleepable on the userspace side
 * and should thus be unattachable.
 */
SEC("kprobe/" SYS_PREFIX "sys_nanosleep")
int handle_kprobe_sleepable(struct pt_regs *ctx)
{
	kprobe_res = 1;
	return 0;
}

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

Annotation

Implementation Notes