1*504d21d9SJiri Olsa // SPDX-License-Identifier: GPL-2.0 2*504d21d9SJiri Olsa #include "vmlinux.h" 3*504d21d9SJiri Olsa #include <bpf/bpf_helpers.h> 4*504d21d9SJiri Olsa #include <bpf/bpf_tracing.h> 5*504d21d9SJiri Olsa #include <bpf/usdt.bpf.h> 6*504d21d9SJiri Olsa #include "bpf_misc.h" 7*504d21d9SJiri Olsa 8*504d21d9SJiri Olsa char _license[] SEC("license") = "GPL"; 9*504d21d9SJiri Olsa 10*504d21d9SJiri Olsa 11*504d21d9SJiri Olsa SEC("kprobe.session") 12*504d21d9SJiri Olsa __success 13*504d21d9SJiri Olsa int kprobe_session_return_0(struct pt_regs *ctx) 14*504d21d9SJiri Olsa { 15*504d21d9SJiri Olsa return 0; 16*504d21d9SJiri Olsa } 17*504d21d9SJiri Olsa 18*504d21d9SJiri Olsa SEC("kprobe.session") 19*504d21d9SJiri Olsa __success 20*504d21d9SJiri Olsa int kprobe_session_return_1(struct pt_regs *ctx) 21*504d21d9SJiri Olsa { 22*504d21d9SJiri Olsa return 1; 23*504d21d9SJiri Olsa } 24*504d21d9SJiri Olsa 25*504d21d9SJiri Olsa SEC("kprobe.session") 26*504d21d9SJiri Olsa __failure 27*504d21d9SJiri Olsa __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]") 28*504d21d9SJiri Olsa int kprobe_session_return_2(struct pt_regs *ctx) 29*504d21d9SJiri Olsa { 30*504d21d9SJiri Olsa return 2; 31*504d21d9SJiri Olsa } 32