123456789101112131415161718192021222324252627282930313233343536373839404142434445464748 |
- #include <linux/bpf.h>
- #include <stdbool.h>
- #include <stdint.h>
- #include <bpf_helpers.h>
- DEFINE_BPF_MAP(cpu_pid_map, ARRAY, int, uint32_t, 1024)
- struct switch_args {
- unsigned long long ignore;
- char prev_comm[16];
- int prev_pid;
- int prev_prio;
- long long prev_state;
- char next_comm[16];
- int next_pid;
- int next_prio;
- };
- SEC("tracepoint/sched/sched_switch")
- int tp_sched_switch(struct switch_args* args) {
- int key;
- uint32_t val;
- key = bpf_get_smp_processor_id();
- val = args->next_pid;
- bpf_cpu_pid_map_update_elem(&key, &val, BPF_ANY);
- return 0;
- }
- char _license[] SEC("license") = "GPL";
|