xref: /linux/tools/testing/selftests/bpf/progs/btf__stack_arg_precision.c (revision b2128290c29902315e632ea59e0504d6bc9e9b42)
16e277efbSYonghong Song // SPDX-License-Identifier: GPL-2.0
26e277efbSYonghong Song /* Copyright (c) 2026 Meta Platforms, Inc. and affiliates. */
36e277efbSYonghong Song #include <vmlinux.h>
46e277efbSYonghong Song #include <bpf/bpf_helpers.h>
56e277efbSYonghong Song #include "../test_kmods/bpf_testmod_kfunc.h"
66e277efbSYonghong Song 
7*90e43f1bSPuranjay Mohan #if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)) && \
8*90e43f1bSPuranjay Mohan 	defined(__BPF_FEATURE_STACK_ARGUMENT)
96e277efbSYonghong Song 
106e277efbSYonghong Song long subprog_call_mem_kfunc(long a, long b, long c, long d, long e, long size)
116e277efbSYonghong Song {
126e277efbSYonghong Song 	char buf[8] = {};
136e277efbSYonghong Song 
146e277efbSYonghong Song 	return bpf_kfunc_call_stack_arg_mem(a, b, c, d, e, buf, size);
156e277efbSYonghong Song }
166e277efbSYonghong Song 
176e277efbSYonghong Song #else
186e277efbSYonghong Song 
196e277efbSYonghong Song long subprog_call_mem_kfunc(void)
206e277efbSYonghong Song {
216e277efbSYonghong Song 	return 0;
226e277efbSYonghong Song }
236e277efbSYonghong Song 
246e277efbSYonghong Song #endif
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