1 // SPDX-License-Identifier: GPL-2.0
2 /* Converted from tools/testing/selftests/bpf/verifier/btf_ctx_access.c */
3
4 #include <linux/bpf.h>
5 #include <bpf/bpf_helpers.h>
6 #include "bpf_misc.h"
7
8 SEC("fentry/bpf_modify_return_test")
9 __description("btf_ctx_access accept")
10 __success __retval(0)
11 __naked void btf_ctx_access_accept(void)
12 {
13 asm volatile (" \
14 r2 = *(u32*)(r1 + 8); /* load 2nd argument value (int pointer) */\
15 r0 = 0; \
16 exit; \
17 " ::: __clobber_all);
18 }
19
20 SEC("fentry/bpf_fentry_test9")
21 __description("btf_ctx_access u32 pointer accept")
22 __success __retval(0)
23 __naked void ctx_access_u32_pointer_accept(void)
24 {
25 asm volatile (" \
26 r2 = *(u32*)(r1 + 0); /* load 1nd argument value (u32 pointer) */\
27 r0 = 0; \
28 exit; \
29 " ::: __clobber_all);
30 }
31
32 char _license[] SEC("license") = "GPL";
33
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