tools/testing/selftests/bpf/progs/loop3.c

Source file repositories/reference/linux-study-clean/tools/testing/selftests/bpf/progs/loop3.c

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/bpf/progs/loop3.c
Extension
.c
Size
377 bytes
Lines
19
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) 2019 Facebook
#include "vmlinux.h"
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>

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

SEC("raw_tracepoint/consume_skb")
int while_true(struct pt_regs *ctx)
{
	volatile __u64 i = 0, sum = 0;
	do {
		i++;
		sum += PT_REGS_RC(ctx);
	} while (i < 0x100000000ULL);
	return sum;
}

Annotation

Implementation Notes