Mercurial > ecos
annotate packages/infra/current/src/diag.cxx @ 76:435cced73e2f ecos-v1_3_1-release
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
| author | jlarmour |
|---|---|
| date | Tue, 28 Mar 2000 14:10:45 +0000 |
| parents | bf00f99aec69 |
| children | 59d97b6ba612 |
| rev | line source |
|---|---|
| 2 | 1 /*======================================================================== |
| 2 // | |
| 3 // diag.c | |
| 4 // | |
| 5 // Infrastructure diagnostic output code | |
| 6 // | |
| 7 //======================================================================== | |
| 8 //####COPYRIGHTBEGIN#### | |
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9 // |
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10 // ------------------------------------------- |
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11 // The contents of this file are subject to the Red Hat eCos Public License |
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12 // Version 1.1 (the "License"); you may not use this file except in |
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13 // compliance with the License. You may obtain a copy of the License at |
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14 // http://www.redhat.com/ |
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15 // |
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16 // Software distributed under the License is distributed on an "AS IS" |
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the |
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18 // License for the specific language governing rights and limitations under |
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19 // the License. |
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20 // |
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21 // The Original Code is eCos - Embedded Configurable Operating System, |
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22 // released September 30, 1998. |
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23 // |
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24 // The Initial Developer of the Original Code is Red Hat. |
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25 // Portions created by Red Hat are |
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26 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc. |
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27 // All Rights Reserved. |
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28 // ------------------------------------------- |
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29 // |
| 2 | 30 //####COPYRIGHTEND#### |
| 31 //======================================================================== | |
| 32 //#####DESCRIPTIONBEGIN#### | |
| 33 // | |
| 34 // Author(s): nickg | |
| 35 // Contributors: nickg | |
| 36 // Date: 1999-02-22 | |
| 37 // Purpose: Infrastructure diagnostic output | |
| 38 // Description: Implementations of infrastructure diagnostic routines. | |
| 39 // | |
| 40 //####DESCRIPTIONEND#### | |
| 41 // | |
| 42 //======================================================================*/ | |
| 43 | |
| 44 #include <pkgconf/system.h> | |
| 45 #include <pkgconf/hal.h> | |
| 46 #include <pkgconf/infra.h> | |
| 47 | |
| 48 #include <cyg/infra/cyg_type.h> // base types | |
| 49 | |
| 50 #include <cyg/infra/diag.h> // HAL polled output | |
| 51 #include <cyg/hal/hal_arch.h> // architectural stuff for... | |
| 52 #include <cyg/hal/hal_intr.h> // interrupt control | |
| 53 #include <cyg/hal/hal_diag.h> // diagnostic output routines | |
| 54 | |
| 55 #ifdef CYGDBG_INFRA_DIAG_PRINTF_USE_VARARG | |
| 56 | |
| 57 #include <stdarg.h> | |
| 58 | |
| 59 #endif | |
| 60 | |
| 61 #ifdef CYGDBG_INFRA_DIAG_USE_DEVICE | |
| 62 #include <cyg/io/io_diag.h> | |
| 63 #endif | |
| 64 | |
| 65 /*----------------------------------------------------------------------*/ | |
| 66 | |
| 67 externC void diag_write_num( | |
| 68 cyg_uint32 n, /* number to write */ | |
| 69 cyg_ucount8 base, /* radix to write to */ | |
| 70 cyg_ucount8 sign, /* sign, '-' if -ve, '+' if +ve */ | |
| 71 cyg_bool pfzero, /* prefix with zero ? */ | |
| 72 cyg_ucount8 width /* min width of number */ | |
| 73 ); | |
| 74 | |
| 75 class Cyg_dummy_diag_init_class { | |
| 76 public: | |
| 77 Cyg_dummy_diag_init_class() { | |
| 78 #ifdef CYGDBG_INFRA_DIAG_USE_DEVICE | |
| 79 diag_device_init(); | |
| 80 #else | |
| 81 HAL_DIAG_INIT(); | |
| 82 #endif | |
| 83 } | |
| 84 }; | |
| 85 | |
| 86 #ifdef CYGDBG_INFRA_DIAG_USE_DEVICE | |
| 87 | |
| 88 // Initialize after IO devices. | |
| 89 static Cyg_dummy_diag_init_class cyg_dummy_diag_init_obj | |
| 90 CYGBLD_ATTRIB_INIT_AFTER(CYG_INIT_IO); | |
| 91 | |
| 92 /*----------------------------------------------------------------------*/ | |
| 93 /* Write single char to output */ | |
| 94 | |
| 95 externC void diag_write_char(char c) | |
| 96 { | |
| 97 diag_device_write_char(c); | |
| 98 } | |
| 99 | |
| 100 #else | |
| 101 | |
| 102 // Initialize after HAL. | |
| 103 static Cyg_dummy_diag_init_class cyg_dummy_diag_init_obj | |
| 104 CYGBLD_ATTRIB_INIT_AFTER(CYG_INIT_HAL); | |
| 105 | |
| 106 /*----------------------------------------------------------------------*/ | |
| 107 /* Write single char to output */ | |
| 108 | |
| 109 #define PREFIX() | |
| 110 //#define PREFIX() HAL_DIAG_WRITE_CHAR(0x0F) | |
| 111 | |
| 112 externC void diag_write_char(char c) | |
| 113 { | |
| 114 /* Translate LF into CRLF */ | |
| 115 | |
| 116 if( c == '\n' ) | |
| 117 { | |
| 118 PREFIX(); | |
| 119 HAL_DIAG_WRITE_CHAR('\r'); | |
| 120 } | |
| 121 | |
| 122 PREFIX(); | |
| 123 HAL_DIAG_WRITE_CHAR(c); | |
| 124 } | |
| 125 #endif | |
| 126 | |
| 127 /*----------------------------------------------------------------------*/ | |
| 128 /* Initialize. Call to pull in diag initializing constructor */ | |
| 129 | |
| 130 externC void diag_init(void) | |
| 131 { | |
| 132 } | |
| 133 | |
| 134 /*----------------------------------------------------------------------*/ | |
| 135 /* Write zero terminated string */ | |
| 136 | |
| 137 externC void diag_write_string(const char *psz) | |
| 138 { | |
| 139 while( *psz ) diag_write_char( *psz++ ); | |
| 140 } | |
| 141 | |
| 142 /*----------------------------------------------------------------------*/ | |
| 143 /* Write decimal value */ | |
| 144 | |
| 145 externC void diag_write_dec( cyg_int32 n) | |
| 146 { | |
| 147 cyg_ucount8 sign; | |
| 148 | |
| 149 if( n < 0 ) n = -n, sign = '-'; | |
| 150 else sign = '+'; | |
| 151 | |
| 152 diag_write_num( n, 10, sign, false, 0); | |
| 153 } | |
| 154 | |
| 155 /*----------------------------------------------------------------------*/ | |
| 156 /* Write hexadecimal value */ | |
| 157 | |
| 158 externC void diag_write_hex( cyg_uint32 n) | |
| 159 { | |
| 160 diag_write_num( n, 16, '+', false, 0); | |
| 161 } | |
| 162 | |
| 163 /*----------------------------------------------------------------------*/ | |
| 164 /* Generic number writing function */ | |
| 165 /* The parameters determine what radix is used, the signed-ness of the */ | |
| 166 /* number, its minimum width and whether it is zero or space filled on */ | |
| 167 /* the left. */ | |
| 168 | |
| 169 externC void diag_write_num( | |
| 170 cyg_uint32 n, /* number to write */ | |
| 171 cyg_ucount8 base, /* radix to write to */ | |
| 172 cyg_ucount8 sign, /* sign, '-' if -ve, '+' if +ve */ | |
| 173 cyg_bool pfzero, /* prefix with zero ? */ | |
| 174 cyg_ucount8 width /* min width of number */ | |
| 175 ) | |
| 176 { | |
| 177 char buf[16]; | |
| 178 cyg_count8 bpos; | |
| 179 char bufinit = pfzero?'0':' '; | |
| 180 char *digits = "0123456789ABCDEF"; | |
| 181 | |
| 182 /* init buffer to padding char: space or zero */ | |
| 183 for( bpos = 0; bpos < (cyg_count8)sizeof(buf); bpos++ ) buf[bpos] = bufinit; | |
| 184 | |
| 185 /* Set pos to start */ | |
| 186 bpos = 0; | |
| 187 | |
| 188 /* construct digits into buffer in reverse order */ | |
| 189 if( n == 0 ) buf[bpos++] = '0'; | |
| 190 else while( n != 0 ) | |
| 191 { | |
| 192 cyg_ucount8 d = n % base; | |
| 193 buf[bpos++] = digits[d]; | |
| 194 n /= base; | |
| 195 } | |
| 196 | |
| 197 /* set pos to width if less. */ | |
| 198 if( (cyg_count8)width > bpos ) bpos = width; | |
| 199 | |
| 200 /* set sign if negative. */ | |
| 201 if( sign == '-' ) | |
| 202 { | |
| 203 if( buf[bpos-1] == bufinit ) bpos--; | |
| 204 buf[bpos] = sign; | |
| 205 } | |
| 206 else bpos--; | |
| 207 | |
| 208 /* Now write it out in correct order. */ | |
| 209 while( bpos >= 0 ) | |
| 210 diag_write_char(buf[bpos--]); | |
| 211 } | |
| 212 | |
| 213 /*----------------------------------------------------------------------*/ | |
| 214 /* perform some simple sanity checks on a string to ensure that it */ | |
| 215 /* consists of printable characters and is of reasonable length. */ | |
| 216 | |
| 217 static cyg_bool diag_check_string( const char *str ) | |
| 218 { | |
| 219 cyg_bool result = true; | |
| 220 const char *s; | |
| 221 | |
| 222 if( str == NULL ) return false; | |
| 223 | |
| 224 for( s = str ; result && *s ; s++ ) | |
| 225 { | |
| 226 char c = *s; | |
| 227 | |
| 228 /* Check for a reasonable length string. */ | |
| 229 | |
| 230 if( s-str > 256 ) result = false; | |
| 231 | |
| 232 /* We only really support CR and NL at present. If we want to | |
| 233 * use tabs or other special chars, this test will have to be | |
| 234 * expanded. | |
| 235 */ | |
| 236 | |
| 237 if( c == '\n' || c == '\r' ) | |
| 238 continue; | |
| 239 | |
| 240 /* Check for printable chars. This assumes ASCII */ | |
| 241 | |
| 242 if( c < ' ' || c > '~' ) | |
| 243 result = false; | |
| 244 | |
| 245 } | |
| 246 | |
| 247 return result; | |
| 248 } | |
| 249 | |
| 250 /*----------------------------------------------------------------------*/ | |
| 251 | |
| 252 externC void diag_vprintf( const char *fmt, CYG_ADDRWORD *args) | |
| 253 { | |
| 254 if( !diag_check_string(fmt) ) | |
| 255 { | |
| 256 int i; | |
| 257 diag_write_string("<Bad format string: "); | |
| 258 diag_write_hex((cyg_uint32)fmt); | |
| 259 diag_write_string(" :"); | |
| 260 for( i = 0; i < 8; i++ ) | |
| 261 { | |
| 262 diag_write_char(' '); | |
| 263 diag_write_hex(args[i]); | |
| 264 } | |
| 265 diag_write_string(">\n"); | |
| 266 return; | |
| 267 } | |
| 268 | |
| 269 while( *fmt != '\0' ) | |
| 270 { | |
| 271 char c = *fmt; | |
| 272 | |
| 273 if( c != '%' ) diag_write_char( c ); | |
| 274 else | |
| 275 { | |
| 276 cyg_bool pfzero = false; | |
| 277 cyg_count8 width = 0; | |
| 278 char sign = '+'; | |
| 279 | |
| 280 c = *++fmt; | |
| 281 | |
| 282 if( c == '0' ) pfzero = true; | |
| 283 | |
| 284 while( '0' <= c && c <= '9' ) | |
| 285 { | |
| 286 width = width*10 + c - '0'; | |
| 287 c = *++fmt; | |
| 288 } | |
| 289 | |
| 290 switch( c ) | |
| 291 { | |
| 292 case 'd': | |
| 293 case 'D': | |
| 294 { | |
| 295 long val = (long)(*args++); | |
| 296 if( val < 0 ) val = -val, sign = '-'; | |
| 297 diag_write_num(val, 10, sign, pfzero, width); | |
| 298 break; | |
| 299 } | |
| 300 | |
| 301 case 'x': | |
| 302 case 'X': | |
| 303 { | |
| 304 unsigned long val = (long)(*args++); | |
| 305 diag_write_num(val, 16, sign, pfzero, width); | |
| 306 break; | |
| 307 } | |
| 308 | |
| 309 case 'c': | |
| 310 case 'C': | |
| 311 { | |
| 312 char ch = (char)(*args++); | |
| 313 diag_write_char(ch); | |
| 314 break; | |
| 315 } | |
| 316 | |
| 317 case 's': | |
| 318 case 'S': | |
| 319 { | |
| 320 char *s = (char *)(*args++); | |
| 321 cyg_count32 len = 0; | |
| 322 cyg_count32 pre = 0, post = 0; | |
| 323 | |
| 324 if( s == NULL ) s = "<null>"; | |
| 325 else if( !diag_check_string(s) ) | |
| 326 { | |
| 327 diag_write_string("<Not a string: 0x"); | |
| 328 diag_write_hex((cyg_uint32)s); | |
| 329 s = ">"; | |
| 330 if( width > 25 ) width -= 25; | |
| 331 pfzero = false; | |
| 332 /* Drop through to print the closing ">" */ | |
| 333 /* and pad to the required length. */ | |
| 334 } | |
| 335 | |
| 336 while( s[len] != 0 ) len++; | |
| 337 | |
| 338 if( width && len > width ) len = width; | |
| 339 | |
| 340 if( pfzero ) pre = width-len; | |
| 341 else post = width-len; | |
| 342 | |
| 343 while( pre-- > 0 ) diag_write_char(' '); | |
| 344 | |
| 345 while( *s != '\0' && len-- != 0) | |
| 346 diag_write_char(*s++); | |
| 347 | |
| 348 while( post-- > 0 ) diag_write_char(' '); | |
| 349 | |
| 350 break; | |
| 351 } | |
| 352 | |
| 353 case 'b': | |
| 354 case 'B': | |
| 355 { | |
| 356 unsigned long val = (unsigned long)(*args++); | |
| 357 cyg_uint32 i; | |
| 358 if( width == 0 ) width = 32; | |
| 359 | |
| 360 for( i = width-1; i >= 0; i-- ) | |
| 361 diag_write_char( (val&(1<<i))?'1':'.' ); | |
| 362 | |
| 363 break; | |
| 364 } | |
| 365 | |
| 366 case '%': | |
| 367 diag_write_char('%'); | |
| 368 break; | |
| 369 | |
| 370 default: | |
| 371 diag_write_char('%'); | |
| 372 diag_write_char(c); | |
| 373 break; | |
| 374 } | |
| 375 } | |
| 376 | |
| 377 fmt++; | |
| 378 } | |
| 379 | |
| 380 } | |
| 381 | |
| 382 /*-----------------------------------------------------------------------*/ | |
| 383 /* Formatted diagnostic output. */ | |
| 384 | |
| 385 #ifdef CYGDBG_INFRA_DIAG_PRINTF_USE_VARARG | |
| 386 | |
| 387 externC void diag_printf(const char *fmt, ... ) | |
| 388 { | |
| 389 | |
| 390 CYG_ADDRWORD args[8]; | |
| 391 | |
| 392 va_list a; | |
| 393 | |
| 394 va_start(a, fmt); | |
| 395 | |
| 396 /* Move all of the arguments into simple scalars. This avoids | |
| 397 * having to use varargs to define diag_vprintf(). | |
| 398 */ | |
| 399 | |
| 400 args[0] = va_arg(a,CYG_ADDRWORD); | |
| 401 args[1] = va_arg(a,CYG_ADDRWORD); | |
| 402 args[2] = va_arg(a,CYG_ADDRWORD); | |
| 403 args[3] = va_arg(a,CYG_ADDRWORD); | |
| 404 args[4] = va_arg(a,CYG_ADDRWORD); | |
| 405 args[5] = va_arg(a,CYG_ADDRWORD); | |
| 406 args[6] = va_arg(a,CYG_ADDRWORD); | |
| 407 args[7] = va_arg(a,CYG_ADDRWORD); | |
| 408 | |
| 409 va_end(a); | |
| 410 | |
| 411 diag_vprintf( fmt, args); | |
| 412 } | |
| 413 | |
| 414 #else | |
| 415 | |
| 416 /* The prototype for diag_printf in diag.h is defined using K&R syntax */ | |
| 417 /* to allow us to use a variable number of arguments in the call without */ | |
| 418 /* using ellipses, which would require use of varargs stuff. If we ever */ | |
| 419 /* need to support arguments that are not simple words, we may need to */ | |
| 420 /* use varargs. */ | |
| 421 /* For the actual implementation, a normal ANSI C prototype is */ | |
| 422 /* acceptable. */ | |
| 423 | |
| 424 externC void diag_printf(const char *fmt, CYG_ADDRWORD a1, CYG_ADDRWORD a2, | |
| 425 CYG_ADDRWORD a3, CYG_ADDRWORD a4, | |
| 426 CYG_ADDRWORD a5, CYG_ADDRWORD a6, | |
| 427 CYG_ADDRWORD a7, CYG_ADDRWORD a8) | |
| 428 { | |
| 429 | |
| 430 CYG_ADDRWORD args[8]; | |
| 431 | |
| 432 args[0] = a1; | |
| 433 args[1] = a2; | |
| 434 args[2] = a3; | |
| 435 args[3] = a4; | |
| 436 args[4] = a5; | |
| 437 args[5] = a6; | |
| 438 args[6] = a7; | |
| 439 args[7] = a8; | |
| 440 | |
| 441 diag_vprintf( fmt, args); | |
| 442 } | |
| 443 | |
| 444 #endif | |
| 445 | |
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446 static void |
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447 diag_dump_buf_with_offset(cyg_uint8 *p, |
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448 CYG_ADDRWORD s, |
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449 cyg_uint8 *base) |
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450 { |
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451 int i, c; |
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452 if ((CYG_ADDRWORD)s > (CYG_ADDRWORD)p) { |
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453 s = (CYG_ADDRWORD)s - (CYG_ADDRWORD)p; |
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454 } |
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455 while ((int)s > 0) { |
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456 if (base) { |
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457 diag_printf("%08X: ", (CYG_ADDRWORD)p - (CYG_ADDRWORD)base); |
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458 } else { |
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459 diag_printf("%08X: ", p); |
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460 } |
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461 for (i = 0; i < 16; i++) { |
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462 if (i < (int)s) { |
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463 diag_printf("%02X", p[i] & 0xFF); |
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464 } else { |
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465 diag_printf(" "); |
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466 } |
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467 if ((i % 2) == 1) diag_printf(" "); |
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468 if ((i % 8) == 7) diag_printf(" "); |
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469 } |
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470 diag_printf(" |"); |
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471 for (i = 0; i < 16; i++) { |
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472 if (i < (int)s) { |
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473 c = p[i] & 0xFF; |
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474 if ((c < 0x20) || (c >= 0x7F)) c = '.'; |
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475 } else { |
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476 c = ' '; |
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477 } |
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478 diag_printf("%c", c); |
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479 } |
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480 diag_printf("|\n"); |
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481 s -= 16; |
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482 p += 16; |
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483 } |
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484 } |
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485 |
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486 externC void |
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487 diag_dump_buf(void *p, CYG_ADDRWORD s) |
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488 { |
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489 diag_dump_buf_with_offset((cyg_uint8 *)p, s, 0); |
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490 } |
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491 |
| 2 | 492 /*-----------------------------------------------------------------------*/ |
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493 /* EOF infra/diag.c */ |