1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) Meta Platforms, Inc. and affiliates. */ 3 4 #include <stdbool.h> 5 #include <linux/bpf.h> 6 #include <bpf/bpf_helpers.h> 7 8 /* volatile to force a read, compiler may assume 0 otherwise */ 9 const volatile int rovar1; 10 int out1; 11 12 /* Override weak symbol in test_subskeleton_lib */ 13 int var5 = 5; 14 15 extern volatile bool CONFIG_BPF_SYSCALL __kconfig; 16 17 extern int lib_routine(void); 18 19 SEC("raw_tp/sys_enter") handler1(const void * ctx)20int handler1(const void *ctx) 21 { 22 (void) CONFIG_BPF_SYSCALL; 23 24 out1 = lib_routine() * rovar1; 25 return 0; 26 } 27 28 char LICENSE[] SEC("license") = "GPL"; 29