populate_metadata_no_tracers_from_scratch.bpf.c

#include <vmlinux.h>
#include <bpf/bpf_helpers.h>

#include <gadget/macros.h>
#include <gadget/mntns_filter.h>
#include <gadget/types.h>

#define NAME_MAX 255

struct event {
	__u32 pid;
	__u8 comm[TASK_COMM_LEN];
	__u8 filename[NAME_MAX];
};

// we need this to make sure the compiler doesn't remove our struct
const struct event *unusedevent __attribute__((unused));

struct {
	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
	__uint(key_size, sizeof(__u32));
	__uint(value_size, sizeof(__u32));
} events SEC(".maps");

char LICENSE[] SEC("license") = "GPL";