1// SPDX-License-Identifier: GPL-2.0 2#include "vmlinux.h" 3#include <bpf/bpf_helpers.h> 4#include <bpf/bpf_tracing.h> 5 6char _license[] SEC("license") = "GPL"; 7 8extern const void bpf_fentry_test1 __ksym; 9extern const void bpf_fentry_test2 __ksym; 10extern const void bpf_fentry_test3 __ksym; 11extern const void bpf_fentry_test4 __ksym; 12extern const void bpf_modify_return_test __ksym; 13extern const void bpf_fentry_test6 __ksym; 14extern const void bpf_fentry_test7 __ksym; 15 16extern bool CONFIG_X86_KERNEL_IBT __kconfig __weak; 17 18/* This function is here to have CONFIG_X86_KERNEL_IBT 19 * used and added to object BTF. 20 */ 21int unused(void) 22{ 23 return CONFIG_X86_KERNEL_IBT ? 0 : 1; 24} 25 26__u64 test1_result = 0; 27SEC("fentry/bpf_fentry_test1") 28int BPF_PROG(test1, int a) 29{ 30 __u64 addr = bpf_get_func_ip(ctx); 31 32 test1_result = (const void *) addr == &bpf_fentry_test1; 33 return 0; 34} 35 36__u64 test2_result = 0; 37SEC("fexit/bpf_fentry_test2") 38int BPF_PROG(test2, int a) 39{ 40 __u64 addr = bpf_get_func_ip(ctx); 41 42 test2_result = (const void *) addr == &bpf_fentry_test2; 43 return 0; 44} 45 46__u64 test3_result = 0; 47SEC("kprobe/bpf_fentry_test3") 48int test3(struct pt_regs *ctx) 49{ 50 __u64 addr = bpf_get_func_ip(ctx); 51 52 test3_result = (const void *) addr == &bpf_fentry_test3; 53 return 0; 54} 55 56__u64 test4_result = 0; 57SEC("kretprobe/bpf_fentry_test4") 58int BPF_KRETPROBE(test4) 59{ 60 __u64 addr = bpf_get_func_ip(ctx); 61 62 test4_result = (const void *) addr == &bpf_fentry_test4; 63 return 0; 64} 65 66__u64 test5_result = 0; 67SEC("fmod_ret/bpf_modify_return_test") 68int BPF_PROG(test5, int a, int *b, int ret) 69{ 70 __u64 addr = bpf_get_func_ip(ctx); 71 72 test5_result = (const void *) addr == &bpf_modify_return_test; 73 return ret; 74} 75 76__u64 test6_result = 0; 77SEC("?kprobe") 78int test6(struct pt_regs *ctx) 79{ 80 __u64 addr = bpf_get_func_ip(ctx); 81 82 test6_result = (const void *) addr == 0; 83 return 0; 84} 85 86unsigned long uprobe_trigger; 87 88__u64 test7_result = 0; 89SEC("uprobe//proc/self/exe:uprobe_trigger") 90int BPF_UPROBE(test7) 91{ 92 __u64 addr = bpf_get_func_ip(ctx); 93 94 test7_result = (const void *) addr == (const void *) uprobe_trigger; 95 return 0; 96} 97 98__u64 test8_result = 0; 99SEC("uretprobe//proc/self/exe:uprobe_trigger") 100int BPF_URETPROBE(test8, int ret) 101{ 102 __u64 addr = bpf_get_func_ip(ctx); 103 104 test8_result = (const void *) addr == (const void *) uprobe_trigger; 105 return 0; 106} 107