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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 | /****************************************************************************** * * Module Name: utdebug - Debug print routines * *****************************************************************************/ /* * Copyright (C) 2000 - 2006, R. Byron Moore * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * substantially similar to the "NO WARRANTY" disclaimer below * ("Disclaimer") and any redistribution must be conditioned upon * including a substantially similar Disclaimer requirement for further * binary redistribution. * 3. Neither the names of the above-listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * * NO WARRANTY * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. */ #include <linux/module.h> #include <acpi/acpi.h> #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME("utdebug") #ifdef ACPI_DEBUG_OUTPUT static u32 acpi_gbl_prev_thread_id = 0xFFFFFFFF; static char *acpi_gbl_fn_entry_str = "----Entry"; static char *acpi_gbl_fn_exit_str = "----Exit-"; /* Local prototypes */ static const char *acpi_ut_trim_function_name(const char *function_name); /******************************************************************************* * * FUNCTION: acpi_ut_init_stack_ptr_trace * * PARAMETERS: None * * RETURN: None * * DESCRIPTION: Save the current CPU stack pointer at subsystem startup * ******************************************************************************/ void acpi_ut_init_stack_ptr_trace(void) { u32 current_sp; acpi_gbl_entry_stack_pointer = ACPI_PTR_DIFF(¤t_sp, NULL); } /******************************************************************************* * * FUNCTION: acpi_ut_track_stack_ptr * * PARAMETERS: None * * RETURN: None * * DESCRIPTION: Save the current CPU stack pointer * ******************************************************************************/ void acpi_ut_track_stack_ptr(void) { acpi_size current_sp; current_sp = ACPI_PTR_DIFF(¤t_sp, NULL); if (current_sp < acpi_gbl_lowest_stack_pointer) { acpi_gbl_lowest_stack_pointer = current_sp; } if (acpi_gbl_nesting_level > acpi_gbl_deepest_nesting) { acpi_gbl_deepest_nesting = acpi_gbl_nesting_level; } } /******************************************************************************* * * FUNCTION: acpi_ut_trim_function_name * * PARAMETERS: function_name - Ascii string containing a procedure name * * RETURN: Updated pointer to the function name * * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present. * This allows compiler macros such as __FUNCTION__ to be used * with no change to the debug output. * ******************************************************************************/ static const char *acpi_ut_trim_function_name(const char *function_name) { /* All Function names are longer than 4 chars, check is safe */ if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_MIXED) { /* This is the case where the original source has not been modified */ return (function_name + 4); } if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_LOWER) { /* This is the case where the source has been 'linuxized' */ return (function_name + 5); } return (function_name); } /******************************************************************************* * * FUNCTION: acpi_ut_debug_print * * PARAMETERS: requested_debug_level - Requested debug print level * line_number - Caller's line number (for error output) * function_name - Caller's procedure name * module_name - Caller's module name * component_id - Caller's component ID * Format - Printf format field * ... - Optional printf arguments * * RETURN: None * * DESCRIPTION: Print error message with prefix consisting of the module name, * line number, and component ID. * ******************************************************************************/ void ACPI_INTERNAL_VAR_XFACE acpi_ut_debug_print(u32 requested_debug_level, u32 line_number, const char *function_name, char *module_name, u32 component_id, char *format, ...) { u32 thread_id; va_list args; /* * Stay silent if the debug level or component ID is disabled */ if (!(requested_debug_level & acpi_dbg_level) || !(component_id & acpi_dbg_layer)) { return; } /* * Thread tracking and context switch notification */ thread_id = acpi_os_get_thread_id(); if (thread_id != acpi_gbl_prev_thread_id) { if (ACPI_LV_THREADS & acpi_dbg_level) { acpi_os_printf ("\n**** Context Switch from TID %X to TID %X ****\n\n", acpi_gbl_prev_thread_id, thread_id); } acpi_gbl_prev_thread_id = thread_id; } /* * Display the module name, current line number, thread ID (if requested), * current procedure nesting level, and the current procedure name */ acpi_os_printf("%8s-%04ld ", module_name, line_number); if (ACPI_LV_THREADS & acpi_dbg_level) { acpi_os_printf("[%04lX] ", thread_id); } acpi_os_printf("[%02ld] %-22.22s: ", acpi_gbl_nesting_level, acpi_ut_trim_function_name(function_name)); va_start(args, format); acpi_os_vprintf(format, args); } EXPORT_SYMBOL(acpi_ut_debug_print); /******************************************************************************* * * FUNCTION: acpi_ut_debug_print_raw * * PARAMETERS: requested_debug_level - Requested debug print level * line_number - Caller's line number * function_name - Caller's procedure name * module_name - Caller's module name * component_id - Caller's component ID * Format - Printf format field * ... - Optional printf arguments * * RETURN: None * * DESCRIPTION: Print message with no headers. Has same interface as * debug_print so that the same macros can be used. * ******************************************************************************/ void ACPI_INTERNAL_VAR_XFACE acpi_ut_debug_print_raw(u32 requested_debug_level, u32 line_number, const char *function_name, char *module_name, u32 component_id, char *format, ...) { va_list args; if (!(requested_debug_level & acpi_dbg_level) || !(component_id & acpi_dbg_layer)) { return; } va_start(args, format); acpi_os_vprintf(format, args); } EXPORT_SYMBOL(acpi_ut_debug_print_raw); /******************************************************************************* * * FUNCTION: acpi_ut_trace * * PARAMETERS: line_number - Caller's line number * function_name - Caller's procedure name * module_name - Caller's module name * component_id - Caller's component ID * * RETURN: None * * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is * set in debug_level * ******************************************************************************/ void acpi_ut_trace(u32 line_number, const char *function_name, char *module_name, u32 component_id) { acpi_gbl_nesting_level++; acpi_ut_track_stack_ptr(); acpi_ut_debug_print(ACPI_LV_FUNCTIONS, line_number, function_name, module_name, component_id, "%s\n", acpi_gbl_fn_entry_str); } EXPORT_SYMBOL(acpi_ut_trace); /******************************************************************************* * * FUNCTION: acpi_ut_trace_ptr * * PARAMETERS: line_number - Caller's line number * function_name - Caller's procedure name * module_name - Caller's module name * component_id - Caller's component ID * Pointer - Pointer to display * * RETURN: None * * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is * set in debug_level * ******************************************************************************/ void acpi_ut_trace_ptr(u32 line_number, const char *function_name, char *module_name, u32 component_id, void *pointer) { acpi_gbl_nesting_level++; acpi_ut_track_stack_ptr(); acpi_ut_debug_print(ACPI_LV_FUNCTIONS, line_number, function_name, module_name, component_id, "%s %p\n", acpi_gbl_fn_entry_str, pointer); } /******************************************************************************* * * FUNCTION: acpi_ut_trace_str * * PARAMETERS: line_number - Caller's line number * function_name - Caller's procedure name * module_name - Caller's module name * component_id - Caller's component ID * String - Additional string to display * * RETURN: None * * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is * set in debug_level * ******************************************************************************/ void acpi_ut_trace_str(u32 line_number, const char *function_name, char *module_name, u32 component_id, char *string) { acpi_gbl_nesting_level++; acpi_ut_track_stack_ptr(); acpi_ut_debug_print(ACPI_LV_FUNCTIONS, line_number, function_name, module_name, component_id, "%s %s\n", acpi_gbl_fn_entry_str, string); } /******************************************************************************* * * FUNCTION: acpi_ut_trace_u32 * * PARAMETERS: line_number - Caller's line number * function_name - Caller's procedure name * module_name - Caller's module name * component_id - Caller's component ID * Integer - Integer to display * * RETURN: None * * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is * set in debug_level * ******************************************************************************/ void acpi_ut_trace_u32(u32 line_number, const char *function_name, char *module_name, u32 component_id, u32 integer) { acpi_gbl_nesting_level++; acpi_ut_track_stack_ptr(); acpi_ut_debug_print(ACPI_LV_FUNCTIONS, line_number, function_name, module_name, component_id, "%s %08X\n", acpi_gbl_fn_entry_str, integer); } /******************************************************************************* * * FUNCTION: acpi_ut_exit * * PARAMETERS: line_number - Caller's line number * function_name - Caller's procedure name * module_name - Caller's module name * component_id - Caller's component ID * * RETURN: None * * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is * set in debug_level * ******************************************************************************/ void acpi_ut_exit(u32 line_number, const char *function_name, char *module_name, u32 component_id) { acpi_ut_debug_print(ACPI_LV_FUNCTIONS, line_number, function_name, module_name, component_id, "%s\n", acpi_gbl_fn_exit_str); acpi_gbl_nesting_level--; } EXPORT_SYMBOL(acpi_ut_exit); /******************************************************************************* * * FUNCTION: acpi_ut_status_exit * * PARAMETERS: line_number - Caller's line number * function_name - Caller's procedure name * module_name - Caller's module name * component_id - Caller's component ID * Status - Exit status code * * RETURN: None * * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is * set in debug_level. Prints exit status also. * ******************************************************************************/ void acpi_ut_status_exit(u32 line_number, const char *function_name, char *module_name, u32 component_id, acpi_status status) { if (ACPI_SUCCESS(status)) { acpi_ut_debug_print(ACPI_LV_FUNCTIONS, line_number, function_name, module_name, component_id, "%s %s\n", acpi_gbl_fn_exit_str, acpi_format_exception(status)); } else { acpi_ut_debug_print(ACPI_LV_FUNCTIONS, line_number, function_name, module_name, component_id, "%s ****Exception****: %s\n", acpi_gbl_fn_exit_str, acpi_format_exception(status)); } acpi_gbl_nesting_level--; } EXPORT_SYMBOL(acpi_ut_status_exit); /******************************************************************************* * * FUNCTION: acpi_ut_value_exit * * PARAMETERS: line_number - Caller's line number * function_name - Caller's procedure name * module_name - Caller's module name * component_id - Caller's component ID * Value - Value to be printed with exit msg * * RETURN: None * * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is * set in debug_level. Prints exit value also. * ******************************************************************************/ void acpi_ut_value_exit(u32 line_number, const char *function_name, char *module_name, u32 component_id, acpi_integer value) { acpi_ut_debug_print(ACPI_LV_FUNCTIONS, line_number, function_name, module_name, component_id, "%s %8.8X%8.8X\n", acpi_gbl_fn_exit_str, ACPI_FORMAT_UINT64(value)); acpi_gbl_nesting_level--; } EXPORT_SYMBOL(acpi_ut_value_exit); /******************************************************************************* * * FUNCTION: acpi_ut_ptr_exit * * PARAMETERS: line_number - Caller's line number * function_name - Caller's procedure name * module_name - Caller's module name * component_id - Caller's component ID * Ptr - Pointer to display * * RETURN: None * * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is * set in debug_level. Prints exit value also. * ******************************************************************************/ void acpi_ut_ptr_exit(u32 line_number, const char *function_name, char *module_name, u32 component_id, u8 * ptr) { acpi_ut_debug_print(ACPI_LV_FUNCTIONS, line_number, function_name, module_name, component_id, "%s %p\n", acpi_gbl_fn_exit_str, ptr); acpi_gbl_nesting_level--; } #endif /******************************************************************************* * * FUNCTION: acpi_ut_dump_buffer * * PARAMETERS: Buffer - Buffer to dump * Count - Amount to dump, in bytes * Display - BYTE, WORD, DWORD, or QWORD display * component_iD - Caller's component ID * * RETURN: None * * DESCRIPTION: Generic dump buffer in both hex and ascii. * ******************************************************************************/ void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id) { acpi_native_uint i = 0; acpi_native_uint j; u32 temp32; u8 buf_char; /* Only dump the buffer if tracing is enabled */ if (!((ACPI_LV_TABLES & acpi_dbg_level) && (component_id & acpi_dbg_layer))) { return; } if ((count < 4) || (count & 0x01)) { display = DB_BYTE_DISPLAY; } /* Nasty little dump buffer routine! */ while (i < count) { /* Print current offset */ acpi_os_printf("%6.4X: ", (u32) i); /* Print 16 hex chars */ for (j = 0; j < 16;) { if (i + j >= count) { /* Dump fill spaces */ acpi_os_printf("%*s", ((display * 2) + 1), " "); j += (acpi_native_uint) display; continue; } switch (display) { default: /* Default is BYTE display */ acpi_os_printf("%02X ", buffer[i + j]); break; case DB_WORD_DISPLAY: ACPI_MOVE_16_TO_32(&temp32, &buffer[i + j]); acpi_os_printf("%04X ", temp32); break; case DB_DWORD_DISPLAY: ACPI_MOVE_32_TO_32(&temp32, &buffer[i + j]); acpi_os_printf("%08X ", temp32); break; case DB_QWORD_DISPLAY: ACPI_MOVE_32_TO_32(&temp32, &buffer[i + j]); acpi_os_printf("%08X", temp32); ACPI_MOVE_32_TO_32(&temp32, &buffer[i + j + 4]); acpi_os_printf("%08X ", temp32); break; } j += (acpi_native_uint) display; } /* * Print the ASCII equivalent characters but watch out for the bad * unprintable ones (printable chars are 0x20 through 0x7E) */ acpi_os_printf(" "); for (j = 0; j < 16; j++) { if (i + j >= count) { acpi_os_printf("\n"); return; } buf_char = buffer[i + j]; if (ACPI_IS_PRINT(buf_char)) { acpi_os_printf("%c", buf_char); } else { acpi_os_printf("."); } } /* Done with that line. */ acpi_os_printf("\n"); i += 16; } return; } |