1 // SPDX-License-Identifier: GPL-2.0 2 3 #include <vmlinux.h> 4 #include <bpf/bpf_tracing.h> 5 #include "bpf_misc.h" 6 #include "../test_kmods/bpf_testmod.h" 7 #include "../test_kmods/bpf_testmod_kfunc.h" 8 9 char _license[] SEC("license") = "GPL"; 10 11 #define bpf_kfunc_multi_st_ops_test_1(args) bpf_kfunc_multi_st_ops_test_1(args, st_ops_id) 12 int st_ops_id; 13 14 int test_pid; 15 int test_err; 16 17 #define MAP2_MAGIC 4567 18 19 SEC("struct_ops") 20 int BPF_PROG(test_1, struct st_ops_args *args) 21 { 22 return MAP2_MAGIC; 23 } 24 25 SEC("tp_btf/sys_enter") 26 int BPF_PROG(sys_enter, struct pt_regs *regs, long id) 27 { 28 struct st_ops_args args = {}; 29 struct task_struct *task; 30 int ret; 31 32 task = bpf_get_current_task_btf(); 33 if (!test_pid || task->pid != test_pid) 34 return 0; 35 36 ret = bpf_kfunc_multi_st_ops_test_1(&args); 37 if (ret != MAP2_MAGIC) 38 test_err++; 39 40 return 0; 41 } 42 43 SEC("syscall") 44 int syscall_prog(void *ctx) 45 { 46 struct st_ops_args args = {}; 47 int ret; 48 49 ret = bpf_kfunc_multi_st_ops_test_1(&args); 50 if (ret != MAP2_MAGIC) 51 test_err++; 52 53 return 0; 54 } 55 56 SEC(".struct_ops.link") 57 struct bpf_testmod_multi_st_ops st_ops_map = { 58 .test_1 = (void *)test_1, 59 }; 60