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

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

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/bpf/progs/tracing_multi_verifier.c
Extension
.c
Size
716 bytes
Lines
32
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
#include "vmlinux.h"
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
#include "bpf_misc.h"

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

SEC("fentry.multi/bpf_fentry_test1")
__failure
__msg("func 'bpf_multi_func' doesn't have 1-th argument")
int BPF_PROG(fentry_direct_access, int a)
{
	return a;
}

SEC("fexit.multi/bpf_fentry_test3")
__failure
__msg("invalid bpf_context access off=24 size=8")
int BPF_PROG(fexit_direct_access, char a, int b, __u64 c, int ret)
{
	return ret;
}

SEC("fsession.multi/bpf_fentry_test4")
__failure
__msg("invalid bpf_context access off=16 size=8")
int BPF_PROG(fsession_direct_access, void *a, char b, int c, __u64 d, int ret)
{
	return c;
}

Annotation

Implementation Notes