| // 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_TABLE("hash", struct Ptr, struct Counters, stats, 1024); | |
| BPF_EXPORT(count_sched) | |
| int count_sched(struct pt_regs *ctx) { | |
| struct Ptr key = {.ptr=ctx->bx}; | |
| struct Counters zleaf = {0}; | |
| stats.lookup_or_init(&key, &zleaf)->stat1++; | |
| return 0; | |
| } |