[tcpip] Allow supported address families to be detected at runtime
[ipxe.git] / src / tests / memcpy_test.c
1 /*
2 * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17 * 02110-1301, USA.
18 *
19 * You can also choose to distribute this program under the terms of
20 * the Unmodified Binary Distribution Licence (as given in the file
21 * COPYING.UBDL), provided that you have satisfied its requirements.
22 */
23
24 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
25
26 /** @file
27 *
28 * memcpy() self-tests
29 *
30 */
31
32 /* Forcibly enable assertions */
33 #undef NDEBUG
34
35 #include <stdint.h>
36 #include <stdlib.h>
37 #include <string.h>
38 #include <ipxe/test.h>
39 #include <ipxe/profile.h>
40
41 /** Number of sample iterations for profiling */
42 #define PROFILE_COUNT 16
43
44 /* Provide global functions to allow inspection of generated code */
45
46 void memcpy_0 ( void *dest, void *src ) { memcpy ( dest, src, 0 ); }
47 void memcpy_1 ( void *dest, void *src ) { memcpy ( dest, src, 1 ); }
48 void memcpy_2 ( void *dest, void *src ) { memcpy ( dest, src, 2 ); }
49 void memcpy_3 ( void *dest, void *src ) { memcpy ( dest, src, 3 ); }
50 void memcpy_4 ( void *dest, void *src ) { memcpy ( dest, src, 4 ); }
51 void memcpy_5 ( void *dest, void *src ) { memcpy ( dest, src, 5 ); }
52 void memcpy_6 ( void *dest, void *src ) { memcpy ( dest, src, 6 ); }
53 void memcpy_7 ( void *dest, void *src ) { memcpy ( dest, src, 7 ); }
54 void memcpy_8 ( void *dest, void *src ) { memcpy ( dest, src, 8 ); }
55 void memcpy_9 ( void *dest, void *src ) { memcpy ( dest, src, 9 ); }
56 void memcpy_10 ( void *dest, void *src ) { memcpy ( dest, src, 10 ); }
57 void memcpy_11 ( void *dest, void *src ) { memcpy ( dest, src, 11 ); }
58 void memcpy_12 ( void *dest, void *src ) { memcpy ( dest, src, 12 ); }
59 void memcpy_13 ( void *dest, void *src ) { memcpy ( dest, src, 13 ); }
60 void memcpy_14 ( void *dest, void *src ) { memcpy ( dest, src, 14 ); }
61 void memcpy_15 ( void *dest, void *src ) { memcpy ( dest, src, 15 ); }
62 void memcpy_16 ( void *dest, void *src ) { memcpy ( dest, src, 16 ); }
63 void memcpy_17 ( void *dest, void *src ) { memcpy ( dest, src, 17 ); }
64 void memcpy_18 ( void *dest, void *src ) { memcpy ( dest, src, 18 ); }
65 void memcpy_19 ( void *dest, void *src ) { memcpy ( dest, src, 19 ); }
66 void memcpy_20 ( void *dest, void *src ) { memcpy ( dest, src, 20 ); }
67 void memcpy_21 ( void *dest, void *src ) { memcpy ( dest, src, 21 ); }
68 void memcpy_22 ( void *dest, void *src ) { memcpy ( dest, src, 22 ); }
69 void memcpy_23 ( void *dest, void *src ) { memcpy ( dest, src, 23 ); }
70 void memcpy_24 ( void *dest, void *src ) { memcpy ( dest, src, 24 ); }
71 void memcpy_25 ( void *dest, void *src ) { memcpy ( dest, src, 25 ); }
72 void memcpy_26 ( void *dest, void *src ) { memcpy ( dest, src, 26 ); }
73 void memcpy_27 ( void *dest, void *src ) { memcpy ( dest, src, 27 ); }
74 void memcpy_28 ( void *dest, void *src ) { memcpy ( dest, src, 28 ); }
75 void memcpy_29 ( void *dest, void *src ) { memcpy ( dest, src, 29 ); }
76 void memcpy_30 ( void *dest, void *src ) { memcpy ( dest, src, 30 ); }
77 void memcpy_31 ( void *dest, void *src ) { memcpy ( dest, src, 31 ); }
78
79 /**
80 * Force a call to the variable-length implementation of memcpy()
81 *
82 * @v dest Destination address
83 * @v src Source address
84 * @v len Length of data
85 * @ret dest Destination address
86 */
87 __attribute__ (( noinline )) void * memcpy_var ( void *dest, const void *src,
88 size_t len ) {
89 return memcpy ( dest, src, len );
90 }
91
92 /**
93 * Perform a constant-length memcpy() test
94 *
95 * ... Data to copy
96 */
97 #define MEMCPY_TEST_CONSTANT( ... ) do { \
98 static const uint8_t src[] = { __VA_ARGS__ }; \
99 uint8_t dest_const[ 1 + sizeof ( src ) + 1 ]; \
100 uint8_t dest_var[ 1 + sizeof ( src ) + 1 ]; \
101 \
102 dest_const[0] = 0x33; \
103 dest_const[ sizeof ( dest_const ) - 1 ] = 0x44; \
104 memcpy ( ( dest_const + 1 ), src, \
105 ( sizeof ( dest_const ) - 2 ) ); \
106 ok ( dest_const[0] == 0x33 ); \
107 ok ( dest_const[ sizeof ( dest_const ) - 1 ] == 0x44 ); \
108 ok ( memcmp ( ( dest_const + 1 ), src, \
109 ( sizeof ( dest_const ) - 2 ) ) == 0 ); \
110 \
111 dest_var[0] = 0x55; \
112 dest_var[ sizeof ( dest_var ) - 1 ] = 0x66; \
113 memcpy_var ( ( dest_var + 1 ), src, \
114 ( sizeof ( dest_var ) - 2 ) ); \
115 ok ( dest_var[0] == 0x55 ); \
116 ok ( dest_var[ sizeof ( dest_var ) - 1 ] == 0x66 ); \
117 ok ( memcmp ( ( dest_var + 1 ), src, \
118 ( sizeof ( dest_var ) - 2 ) ) == 0 ); \
119 } while ( 0 )
120
121 /**
122 * Test memcpy() speed
123 *
124 * @v dest_offset Destination alignment offset
125 * @v src_offset Source alignment offset
126 * @v len Length of data to copy
127 */
128 static void memcpy_test_speed ( unsigned int dest_offset,
129 unsigned int src_offset, size_t len ) {
130 struct profiler profiler;
131 uint8_t *dest;
132 uint8_t *src;
133 unsigned int i;
134
135 /* Allocate blocks */
136 dest = malloc ( len + dest_offset );
137 assert ( dest != NULL );
138 src = malloc ( len + src_offset );
139 assert ( src != NULL );
140
141 /* Generate random source data */
142 for ( i = 0 ; i < len ; i++ )
143 src[ src_offset + i ] = random();
144
145 /* Check correctness of copied data */
146 memcpy ( ( dest + dest_offset ), ( src + src_offset ), len );
147 ok ( memcmp ( ( dest + dest_offset ), ( src + src_offset ),
148 len ) == 0 );
149
150 /* Profile memcpy() */
151 memset ( &profiler, 0, sizeof ( profiler ) );
152 for ( i = 0 ; i < PROFILE_COUNT ; i++ ) {
153 profile_start ( &profiler );
154 memcpy ( ( dest + dest_offset ), ( src + src_offset ), len );
155 profile_stop ( &profiler );
156 }
157
158 /* Free blocks */
159 free ( dest );
160 free ( src );
161
162 DBG ( "MEMCPY copied %zd bytes (+%d => +%d) in %ld +/- %ld ticks\n",
163 len, src_offset, dest_offset, profile_mean ( &profiler ),
164 profile_stddev ( &profiler ) );
165 }
166
167 /**
168 * Perform memcpy() self-tests
169 *
170 */
171 static void memcpy_test_exec ( void ) {
172 unsigned int dest_offset;
173 unsigned int src_offset;
174
175 /* Constant-length tests */
176 MEMCPY_TEST_CONSTANT ( );
177 MEMCPY_TEST_CONSTANT ( 0x86 );
178 MEMCPY_TEST_CONSTANT ( 0x8c, 0xd3 );
179 MEMCPY_TEST_CONSTANT ( 0x4e, 0x08, 0xed );
180 MEMCPY_TEST_CONSTANT ( 0xcc, 0x61, 0x8f, 0x70 );
181 MEMCPY_TEST_CONSTANT ( 0x6d, 0x28, 0xe0, 0x9e, 0x6d );
182 MEMCPY_TEST_CONSTANT ( 0x7d, 0x13, 0x4f, 0xef, 0x17, 0xb3 );
183 MEMCPY_TEST_CONSTANT ( 0x38, 0xa7, 0xd4, 0x8d, 0x44, 0x01, 0xfd );
184 MEMCPY_TEST_CONSTANT ( 0x45, 0x9f, 0xf4, 0xf9, 0xf3, 0x0f, 0x99, 0x43 );
185 MEMCPY_TEST_CONSTANT ( 0x69, 0x8c, 0xf6, 0x12, 0x79, 0x70, 0xd8, 0x1e,
186 0x9d );
187 MEMCPY_TEST_CONSTANT ( 0xbe, 0x53, 0xb4, 0xb7, 0xdd, 0xe6, 0x35, 0x10,
188 0x3c, 0xe7 );
189 MEMCPY_TEST_CONSTANT ( 0xaf, 0x41, 0x8a, 0x88, 0xb1, 0x4e, 0x52, 0xd4,
190 0xe6, 0xc3, 0x76 );
191 MEMCPY_TEST_CONSTANT ( 0xdf, 0x43, 0xe4, 0x5d, 0xad, 0x17, 0x35, 0x38,
192 0x1a, 0x1d, 0x57, 0x58 );
193 MEMCPY_TEST_CONSTANT ( 0x20, 0x52, 0x83, 0x92, 0xb9, 0x85, 0xa4, 0x06,
194 0x94, 0xe0, 0x3d, 0x57, 0xd4 );
195 MEMCPY_TEST_CONSTANT ( 0xf1, 0x67, 0x31, 0x9e, 0x32, 0x98, 0x27, 0xe9,
196 0x8e, 0x62, 0xb4, 0x82, 0x7e, 0x02 );
197 MEMCPY_TEST_CONSTANT ( 0x93, 0xc1, 0x55, 0xe3, 0x60, 0xce, 0xac, 0x1e,
198 0xae, 0x9d, 0xca, 0xec, 0x92, 0xb3, 0x38 );
199 MEMCPY_TEST_CONSTANT ( 0xb3, 0xc1, 0xfa, 0xe7, 0x8a, 0x1c, 0xe4, 0xce,
200 0x85, 0xe6, 0x3c, 0xab, 0x1c, 0xa2, 0xaf, 0x7a );
201 MEMCPY_TEST_CONSTANT ( 0x9b, 0x6e, 0x1c, 0x48, 0x82, 0xd3, 0x6e, 0x58,
202 0xa7, 0xb0, 0xe6, 0xea, 0x6d, 0xee, 0xc8, 0xf8,
203 0xaf );
204 MEMCPY_TEST_CONSTANT ( 0x86, 0x6d, 0xb0, 0xf5, 0xf2, 0xc9, 0xcd, 0xfe,
205 0xfb, 0x38, 0x67, 0xbc, 0x51, 0x9d, 0x25, 0xbc,
206 0x09, 0x88 );
207 MEMCPY_TEST_CONSTANT ( 0x58, 0xa4, 0x96, 0x9e, 0x98, 0x36, 0xdb, 0xae,
208 0x8a, 0x08, 0x7c, 0x64, 0xf9, 0xfb, 0x25, 0xb4,
209 0x8e, 0xf3, 0xed );
210 MEMCPY_TEST_CONSTANT ( 0xc6, 0x3b, 0x84, 0x3c, 0x76, 0x24, 0x8e, 0x42,
211 0x11, 0x1f, 0x09, 0x2e, 0x24, 0xbb, 0x67, 0x71,
212 0x3a, 0xca, 0x60, 0xdd );
213 MEMCPY_TEST_CONSTANT ( 0x8e, 0x2d, 0xa9, 0x58, 0x87, 0xe2, 0xac, 0x4b,
214 0xc8, 0xbf, 0xa2, 0x4e, 0xee, 0x3a, 0xa6, 0x71,
215 0x76, 0xee, 0x42, 0x05, 0x6e );
216 MEMCPY_TEST_CONSTANT ( 0x8a, 0xda, 0xdf, 0x7b, 0x55, 0x41, 0x8c, 0xcd,
217 0x42, 0x40, 0x18, 0xe2, 0x60, 0xc4, 0x7d, 0x64,
218 0x00, 0xd5, 0xef, 0xa1, 0x7b, 0x31 );
219 MEMCPY_TEST_CONSTANT ( 0xd9, 0x25, 0xcb, 0xbb, 0x9c, 0x1d, 0xdd, 0xcd,
220 0xde, 0x96, 0xd9, 0x74, 0x13, 0x95, 0xfe, 0x68,
221 0x0b, 0x3d, 0x30, 0x8d, 0x0c, 0x1e, 0x6d );
222 MEMCPY_TEST_CONSTANT ( 0x2d, 0x0d, 0x02, 0x33, 0xd6, 0xbe, 0x6c, 0xa6,
223 0x0a, 0xab, 0xe5, 0xda, 0xe2, 0xab, 0x78, 0x3c,
224 0xd3, 0xdd, 0xea, 0xfa, 0x1a, 0xe4, 0xf4, 0xb3 );
225 MEMCPY_TEST_CONSTANT ( 0x6a, 0x34, 0x39, 0xea, 0x29, 0x5f, 0xa6, 0x18,
226 0xc1, 0x53, 0x39, 0x78, 0xdb, 0x40, 0xf2, 0x98,
227 0x78, 0xcf, 0xee, 0xfd, 0xcd, 0xf8, 0x56, 0xf8,
228 0x30 );
229 MEMCPY_TEST_CONSTANT ( 0xe4, 0xe5, 0x5a, 0x8d, 0xcf, 0x04, 0x29, 0x7c,
230 0xa7, 0xd8, 0x43, 0xbf, 0x0b, 0xbf, 0xe7, 0x68,
231 0xf7, 0x8c, 0x81, 0xf9, 0x3f, 0xad, 0xa4, 0x40,
232 0x38, 0x82 );
233 MEMCPY_TEST_CONSTANT ( 0x71, 0xcd, 0x3d, 0x26, 0xde, 0x11, 0x23, 0xd5,
234 0x42, 0x6e, 0x63, 0x72, 0x53, 0xfc, 0x28, 0x06,
235 0x4b, 0xe0, 0x2c, 0x07, 0x6b, 0xe8, 0xd9, 0x5f,
236 0xf8, 0x74, 0xed );
237 MEMCPY_TEST_CONSTANT ( 0x05, 0xb2, 0xae, 0x81, 0x91, 0xc9, 0xa2, 0x5f,
238 0xa9, 0x1b, 0x25, 0x7f, 0x32, 0x0c, 0x04, 0x00,
239 0xf1, 0x46, 0xab, 0x77, 0x1e, 0x12, 0x27, 0xe7,
240 0xf6, 0x1e, 0x0c, 0x29 );
241 MEMCPY_TEST_CONSTANT ( 0x0e, 0xca, 0xa5, 0x56, 0x3d, 0x99, 0x99, 0xf9,
242 0x6e, 0xdd, 0x93, 0x98, 0xec, 0x8b, 0x5c, 0x71,
243 0x0c, 0xb0, 0xe6, 0x12, 0xf2, 0x10, 0x1a, 0xbe,
244 0x4a, 0xe0, 0xe3, 0x00, 0xf8 );
245 MEMCPY_TEST_CONSTANT ( 0x40, 0xa8, 0x28, 0x5b, 0x12, 0x0d, 0x80, 0x8e,
246 0x8a, 0xd9, 0x92, 0x7a, 0x6e, 0x48, 0x8d, 0x14,
247 0x4b, 0xc6, 0xce, 0x21, 0x2f, 0x0e, 0x47, 0xbd,
248 0xf1, 0xca, 0x0e, 0x1f, 0x65, 0xc4 );
249 MEMCPY_TEST_CONSTANT ( 0x84, 0x83, 0x44, 0xe8, 0x1c, 0xbf, 0x23, 0x05,
250 0xdf, 0xed, 0x3b, 0xb7, 0x0b, 0x4a, 0x05, 0xec,
251 0xb7, 0x6f, 0x1c, 0xfe, 0x05, 0x05, 0x4e, 0xd1,
252 0x50, 0x88, 0x81, 0x87, 0x68, 0xf6, 0x66 );
253 MEMCPY_TEST_CONSTANT ( 0x0d, 0x1d, 0xcf, 0x3e, 0x7c, 0xf8, 0x12, 0x1b,
254 0x96, 0x7f, 0xff, 0x27, 0xca, 0xfe, 0xd3, 0x8b,
255 0x10, 0xb9, 0x5d, 0x05, 0xad, 0x50, 0xed, 0x35,
256 0x32, 0x9c, 0xe6, 0x3b, 0x73, 0xe0, 0x7d );
257
258 /* Speed tests */
259 memcpy_test_speed ( 0, 0, 64 );
260 memcpy_test_speed ( 0, 0, 128 );
261 memcpy_test_speed ( 0, 0, 256 );
262 for ( dest_offset = 0 ; dest_offset < 4 ; dest_offset++ ) {
263 for ( src_offset = 0 ; src_offset < 4 ; src_offset++ ) {
264 memcpy_test_speed ( dest_offset, src_offset, 4096 );
265 }
266 }
267 }
268
269 /** memcpy() self-test */
270 struct self_test memcpy_test __self_test = {
271 .name = "memcpy",
272 .exec = memcpy_test_exec,
273 };