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Dir : ~/usr/share/doc/bpfcc-tools/examples/lua/

View File Name : bashreadline.c

#include <uapi/linux/ptrace.h>

struct str_t {
	u64 pid;
	char str[80];
};

BPF_PERF_OUTPUT(events);

int printret(struct pt_regs *ctx)
{
	struct str_t data  = {};
	u32 pid;
        if (!PT_REGS_RC(ctx))
          return 0;
        pid = bpf_get_current_pid_tgid();
        data.pid = pid;
        bpf_probe_read_user(&data.str, sizeof(data.str),
                            (void *)PT_REGS_RC(ctx));
        events.perf_submit(ctx, &data, sizeof(data));
        return 0;
};