linux-zen-desktop/tools/testing/selftests/bpf/progs/test_log_buf.c

25 lines
407 B
C

// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2021 Facebook */
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
int a[4];
const volatile int off = 4000;
SEC("raw_tp/sys_enter")
int good_prog(const void *ctx)
{
a[0] = (int)(long)ctx;
return a[1];
}
SEC("raw_tp/sys_enter")
int bad_prog(const void *ctx)
{
/* out of bounds access */
return a[off];
}
char _license[] SEC("license") = "GPL";