// Copyright (c) PLUMgrid, Inc. // Licensed under the Apache License, Version 2.0 (the "License") #include <linux/ptrace.h> struct Ptr { u64 ptr; }; struct Counters { u64 stat1; }; BPF_HASH(stats, struct Ptr, struct Counters, 1024); int count_sched(struct pt_regs *ctx) { struct Ptr key = {.ptr = PT_REGS_PARM1(ctx)}; struct Counters zleaf = {0}; stats.lookup_or_init(&key, &zleaf)->stat1++; return 0; }