// SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2020, Oracle and/or its affiliates. #include "vmlinux.h" #include #include char _license[] SEC("license") = "GPL"; int trace_printk_ret = 0; int trace_printk_ran = 0; SEC("tp/raw_syscalls/sys_enter") int sys_enter(void *ctx) { static const char fmt[] = "testing,testing %d\n"; trace_printk_ret = bpf_trace_printk(fmt, sizeof(fmt), ++trace_printk_ran); return 0; }