// SPDX-License-Identifier: GPL-2.0 #include "vmlinux.h" #include <bpf/bpf_helpers.h> #include <bpf/bpf_tracing.h> char _license[] SEC("license") = "GPL"; extern int bpf_fentry_test1(int a) __ksym; extern int bpf_modify_return_test(int a, int *b) __ksym; extern const void bpf_fentry_test2 __ksym; extern const void bpf_fentry_test3 __ksym; extern const void bpf_fentry_test4 __ksym; extern bool CONFIG_X86_KERNEL_IBT __kconfig __weak; /* This function is here to have CONFIG_X86_KERNEL_IBT * used and added to object BTF. */ int unused(void) { return CONFIG_X86_KERNEL_IBT ? 0 : 1; } __u64 test1_result = 0; SEC("fentry/bpf_fentry_test1") int BPF_PROG(test1, int a) { __u64 addr = bpf_get_func_ip(ctx); test1_result = (const void *) addr == &bpf_fentry_test1; return 0; } __u64 test2_result = 0; SEC("fexit/bpf_fentry_test2") int BPF_PROG(test2, int a) { __u64 addr = bpf_get_func_ip(ctx); test2_result = (const void *) addr == &bpf_fentry_test2; return 0; } __u64 test3_result = 0; SEC("kprobe/bpf_fentry_test3") int test3(struct pt_regs *ctx) { __u64 addr = bpf_get_func_ip(ctx); test3_result = (const void *) addr == &bpf_fentry_test3; return 0; } __u64 test4_result = 0; SEC("kretprobe/bpf_fentry_test4") int BPF_KRETPROBE(test4) { __u64 addr = bpf_get_func_ip(ctx); test4_result = (const void *) addr == &bpf_fentry_test4; return 0; } __u64 test5_result = 0; SEC("fmod_ret/bpf_modify_return_test") int BPF_PROG(test5, int a, int *b, int ret) { __u64 addr = bpf_get_func_ip(ctx); test5_result = (const void *) addr == &bpf_modify_return_test; return ret; } __u64 test6_result = 0; SEC("?kprobe") int test6(struct pt_regs *ctx) { __u64 addr = bpf_get_func_ip(ctx); test6_result = (const void *) addr == 0; return 0; } unsigned long uprobe_trigger; __u64 test7_result = 0; SEC("uprobe//proc/self/exe:uprobe_trigger") int BPF_UPROBE(test7) { __u64 addr = bpf_get_func_ip(ctx); test7_result = (const void *) addr == (const void *) uprobe_trigger; return 0; } __u64 test8_result = 0; SEC("uretprobe//proc/self/exe:uprobe_trigger") int BPF_URETPROBE(test8, int ret) { __u64 addr = bpf_get_func_ip(ctx); test8_result = (const void *) addr == (const void *) uprobe_trigger; return 0; }