1*576d47bbSDaniel Xu // SPDX-License-Identifier: GPL-2.0 2*576d47bbSDaniel Xu 3*576d47bbSDaniel Xu #include <linux/ptrace.h> 4*576d47bbSDaniel Xu #include <linux/bpf.h> 5*576d47bbSDaniel Xu #include <bpf/bpf_helpers.h> 6*576d47bbSDaniel Xu #include <bpf/bpf_tracing.h> 7*576d47bbSDaniel Xu 8*576d47bbSDaniel Xu struct pt_regs current_regs = {}; 9*576d47bbSDaniel Xu struct pt_regs ctx_regs = {}; 10*576d47bbSDaniel Xu int uprobe_res = 0; 11*576d47bbSDaniel Xu 12*576d47bbSDaniel Xu SEC("uprobe/trigger_func") 13*576d47bbSDaniel Xu int handle_uprobe(struct pt_regs *ctx) 14*576d47bbSDaniel Xu { 15*576d47bbSDaniel Xu struct task_struct *current; 16*576d47bbSDaniel Xu struct pt_regs *regs; 17*576d47bbSDaniel Xu 18*576d47bbSDaniel Xu current = bpf_get_current_task_btf(); 19*576d47bbSDaniel Xu regs = (struct pt_regs *) bpf_task_pt_regs(current); 20*576d47bbSDaniel Xu __builtin_memcpy(¤t_regs, regs, sizeof(*regs)); 21*576d47bbSDaniel Xu __builtin_memcpy(&ctx_regs, ctx, sizeof(*ctx)); 22*576d47bbSDaniel Xu 23*576d47bbSDaniel Xu /* Prove that uprobe was run */ 24*576d47bbSDaniel Xu uprobe_res = 1; 25*576d47bbSDaniel Xu 26*576d47bbSDaniel Xu return 0; 27*576d47bbSDaniel Xu } 28*576d47bbSDaniel Xu 29*576d47bbSDaniel Xu char _license[] SEC("license") = "GPL"; 30