File: tracex7_kern.c

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linux 4.19.194-1
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#include <uapi/linux/ptrace.h>
#include <uapi/linux/bpf.h>
#include <linux/version.h>
#include "bpf_helpers.h"

SEC("kprobe/open_ctree")
int bpf_prog1(struct pt_regs *ctx)
{
	unsigned long rc = -12;

	bpf_override_return(ctx, rc);
	return 0;
}

char _license[] SEC("license") = "GPL";
u32 _version SEC("version") = LINUX_VERSION_CODE;