#include <linux/ptrace.h> | |
#include <linux/version.h> | |
#include <uapi/linux/bpf.h> | |
#include "bpf_helpers.h" | |
struct bpf_map_def SEC("maps") my_map = { | |
.type = BPF_MAP_TYPE_PERF_EVENT_ARRAY, | |
.key_size = sizeof(int), | |
.value_size = sizeof(u32), | |
.max_entries = 32, | |
}; | |
SEC("kprobe/sys_write") | |
int bpf_prog1(struct pt_regs *ctx) | |
{ | |
u64 count; | |
u32 key = bpf_get_smp_processor_id(); | |
char fmt[] = "CPU-%d %llu\n"; | |
count = bpf_perf_event_read(&my_map, key); | |
bpf_trace_printk(fmt, sizeof(fmt), key, count); | |
return 0; | |
} | |
char _license[] SEC("license") = "GPL"; | |
u32 _version SEC("version") = LINUX_VERSION_CODE; |