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// SPDX-License-Identifier: GPL-2.0
/*
* Verifier tests for single- and multi-level pointer parameter handling
* Copyright (c) 2026 CrowdStrike, Inc.
*/
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
#include "bpf_misc.h"
SEC("fentry/bpf_fentry_test_ppvoid")
__description("fentry/void**: void ** inferred as scalar")
__success __retval(0)
__log_level(2)
__msg("R1=ctx() R2=scalar()")
__naked void fentry_ppvoid_as_scalar(void)
{
asm volatile (" \
r2 = *(u64 *)(r1 + 0); \
r0 = 0; \
exit; \
" ::: __clobber_all);
}
SEC("fentry/bpf_fentry_test_pppvoid")
__description("fentry/void***: void *** inferred as scalar")
__success __retval(0)
__log_level(2)
__msg("R1=ctx() R2=scalar()")
__naked void fentry_pppvoid_as_scalar(void)
{
asm volatile (" \
r2 = *(u64 *)(r1 + 0); \
r0 = 0; \
exit; \
" ::: __clobber_all);
}
SEC("fentry/bpf_fentry_test_ppfile")
__description("fentry/struct file**: struct file ** inferred as scalar")
__success __retval(0)
__log_level(2)
__msg("R1=ctx() R2=scalar()")
__naked void fentry_ppfile_as_scalar(void)
{
asm volatile (" \
r2 = *(u64 *)(r1 + 0); \
r0 = 0; \
exit; \
" ::: __clobber_all);
}
SEC("fexit/bpf_fexit_test_ret_ppfile")
__description("fexit/return struct file**: returned struct file ** inferred as scalar")
__success __retval(0)
__log_level(2)
__msg("R1=ctx() R2=scalar()")
__naked void fexit_ppfile_as_scalar(void)
{
asm volatile (" \
r2 = *(u64 *)(r1 + 0); \
r0 = 0; \
exit; \
" ::: __clobber_all);
}
char _license[] SEC("license") = "GPL";
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