1// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
2
3/*
4 * BTF-to-C dumper tests for struct packing determination.
5 *
6 * Copyright (c) 2019 Facebook
7 */
8/* ----- START-EXPECTED-OUTPUT ----- */
9struct packed_trailing_space {
10	int a;
11	short b;
12} __attribute__((packed));
13
14struct non_packed_trailing_space {
15	int a;
16	short b;
17};
18
19struct packed_fields {
20	short a;
21	int b;
22} __attribute__((packed));
23
24struct non_packed_fields {
25	short a;
26	int b;
27};
28
29struct nested_packed {
30	char: 4;
31	int a: 4;
32	long b;
33	struct {
34		char c;
35		int d;
36	} __attribute__((packed)) e;
37} __attribute__((packed));
38
39union union_is_never_packed {
40	int a: 4;
41	char b;
42	char c: 1;
43};
44
45union union_does_not_need_packing {
46	struct {
47		long a;
48		int b;
49	} __attribute__((packed));
50	int c;
51};
52
53union jump_code_union {
54	char code[5];
55	struct {
56		char jump;
57		int offset;
58	} __attribute__((packed));
59};
60
61/* ----- START-EXPECTED-OUTPUT ----- */
62/*
63 *struct nested_packed_but_aligned_struct {
64 *	int x1;
65 *	int x2;
66 *};
67 *
68 *struct outer_implicitly_packed_struct {
69 *	char y1;
70 *	struct nested_packed_but_aligned_struct y2;
71 *} __attribute__((packed));
72 *
73 */
74/* ------ END-EXPECTED-OUTPUT ------ */
75
76struct nested_packed_but_aligned_struct {
77	int x1;
78	int x2;
79} __attribute__((packed));
80
81struct outer_implicitly_packed_struct {
82	char y1;
83	struct nested_packed_but_aligned_struct y2;
84};
85/* ----- START-EXPECTED-OUTPUT ----- */
86/*
87 *struct usb_ss_ep_comp_descriptor {
88 *	char: 8;
89 *	char bDescriptorType;
90 *	char bMaxBurst;
91 *	short wBytesPerInterval;
92 *};
93 *
94 *struct usb_host_endpoint {
95 *	long: 64;
96 *	char: 8;
97 *	struct usb_ss_ep_comp_descriptor ss_ep_comp;
98 *	long: 0;
99 *} __attribute__((packed));
100 *
101 */
102/* ------ END-EXPECTED-OUTPUT ------ */
103
104struct usb_ss_ep_comp_descriptor {
105	char: 8;
106	char bDescriptorType;
107	char bMaxBurst;
108	int: 0;
109	short wBytesPerInterval;
110} __attribute__((packed));
111
112struct usb_host_endpoint {
113	long: 64;
114	char: 8;
115	struct usb_ss_ep_comp_descriptor ss_ep_comp;
116	long: 0;
117};
118
119/* ----- START-EXPECTED-OUTPUT ----- */
120struct nested_packed_struct {
121	int a;
122	char b;
123} __attribute__((packed));
124
125struct outer_nonpacked_struct {
126	short a;
127	struct nested_packed_struct b;
128};
129
130struct outer_packed_struct {
131	short a;
132	struct nested_packed_struct b;
133} __attribute__((packed));
134
135/* ------ END-EXPECTED-OUTPUT ------ */
136
137int f(struct {
138	struct packed_trailing_space _1;
139	struct non_packed_trailing_space _2;
140	struct packed_fields _3;
141	struct non_packed_fields _4;
142	struct nested_packed _5;
143	union union_is_never_packed _6;
144	union union_does_not_need_packing _7;
145	union jump_code_union _8;
146	struct outer_implicitly_packed_struct _9;
147	struct usb_host_endpoint _10;
148	struct outer_nonpacked_struct _11;
149	struct outer_packed_struct _12;
150} *_)
151{
152	return 0;
153}
154