1 | // SPDX-License-Identifier: GPL-2.0 |
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2 | /* Copyright (c) 2021 Google LLC. */ |
3 | |
4 | #include <linux/bpf.h> |
5 | #include <bpf/bpf_helpers.h> |
6 | |
7 | /* The format string is filled from the userspace such that loading fails */ |
8 | const char fmt[10]; |
9 | |
10 | SEC("raw_tp/sys_enter") |
11 | int handler(const void *ctx) |
12 | { |
13 | unsigned long long arg = 42; |
14 | |
15 | bpf_snprintf(NULL, 0, fmt, &arg, sizeof(arg)); |
16 | |
17 | return 0; |
18 | } |
19 | |
20 | char _license[] SEC("license") = "GPL"; |
21 |