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#include <vmlinux.h>
#include <bpf/bpf_tracing.h>
#include "../test_kmods/bpf_testmod.h"
#include "bpf_misc.h"
char _license[] SEC("license") = "GPL";
__attribute__((nomerge)) extern void bpf_task_release(struct task_struct *p) __ksym;
/* This is a test BPF program that uses struct_ops to access a referenced
* kptr argument. This is a test for the verifier to ensure that it
* 1) recongnizes the task as a referenced object (i.e., ref_obj_id > 0), and
* 2) the same reference can be acquired from multiple paths as long as it
* has not been released.
*/
SEC("struct_ops/test_refcounted")
int BPF_PROG(refcounted, int dummy, struct task_struct *task)
{
if (dummy == 1)
bpf_task_release(task);
else
bpf_task_release(task);
return 0;
}
SEC(".struct_ops.link")
struct bpf_testmod_ops testmod_refcounted = {
.test_refcounted = (void *)refcounted,
};
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