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fb3df220 | 1 | /** @file\r |
50a64e5b | 2 | Provides services to print debug and assert messages to a debug output device.\r |
d80b2f71 | 3 | \r |
4 | The Debug library supports debug print and asserts based on a combination of macros and code.\r | |
5 | The debug library can be turned on and off so that the debug code does not increase the size of an image.\r | |
6 | \r | |
3e5c3238 | 7 | Copyright (c) 2006 - 2008, Intel Corporation<BR>\r |
50a64e5b | 8 | All rights reserved. This program and the accompanying materials\r |
9 | are licensed and made available under the terms and conditions of the BSD License\r | |
10 | which accompanies this distribution. The full text of the license may be found at\r | |
11 | http://opensource.org/licenses/bsd-license.php\r | |
fb3df220 | 12 | \r |
50a64e5b | 13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
14 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
fb3df220 | 15 | \r |
16 | **/\r | |
17 | \r | |
18 | #ifndef __DEBUG_LIB_H__\r | |
19 | #define __DEBUG_LIB_H__\r | |
20 | \r | |
21 | //\r | |
22 | // Declare bits for PcdDebugPropertyMask\r | |
23 | //\r | |
24 | #define DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED 0x01\r | |
25 | #define DEBUG_PROPERTY_DEBUG_PRINT_ENABLED 0x02\r | |
26 | #define DEBUG_PROPERTY_DEBUG_CODE_ENABLED 0x04\r | |
27 | #define DEBUG_PROPERTY_CLEAR_MEMORY_ENABLED 0x08\r | |
28 | #define DEBUG_PROPERTY_ASSERT_BREAKPOINT_ENABLED 0x10\r | |
29 | #define DEBUG_PROPERTY_ASSERT_DEADLOOP_ENABLED 0x20\r | |
30 | \r | |
31 | //\r | |
32 | // Declare bits for PcdDebugPrintErrorLevel and the ErrorLevel parameter of DebugPrint()\r | |
33 | //\r | |
34 | #define DEBUG_INIT 0x00000001 // Initialization\r | |
35 | #define DEBUG_WARN 0x00000002 // Warnings\r | |
36 | #define DEBUG_LOAD 0x00000004 // Load events\r | |
37 | #define DEBUG_FS 0x00000008 // EFI File system\r | |
38 | #define DEBUG_POOL 0x00000010 // Alloc & Free's\r | |
39 | #define DEBUG_PAGE 0x00000020 // Alloc & Free's\r | |
40 | #define DEBUG_INFO 0x00000040 // Verbose\r | |
c759eb45 | 41 | #define DEBUG_DISPATCH 0x00000080 // PEI/DXE Dispatchers\r |
fb3df220 | 42 | #define DEBUG_VARIABLE 0x00000100 // Variable\r |
43 | #define DEBUG_BM 0x00000400 // Boot Manager\r | |
44 | #define DEBUG_BLKIO 0x00001000 // BlkIo Driver\r | |
45 | #define DEBUG_NET 0x00004000 // SNI Driver\r | |
46 | #define DEBUG_UNDI 0x00010000 // UNDI Driver\r | |
47 | #define DEBUG_LOADFILE 0x00020000 // UNDI Driver\r | |
48 | #define DEBUG_EVENT 0x00080000 // Event messages\r | |
49 | #define DEBUG_ERROR 0x80000000 // Error\r | |
50 | \r | |
51 | //\r | |
52 | // Aliases of debug message mask bits\r | |
53 | //\r | |
54 | #define EFI_D_INIT DEBUG_INIT\r | |
55 | #define EFI_D_WARN DEBUG_WARN\r | |
56 | #define EFI_D_LOAD DEBUG_LOAD\r | |
57 | #define EFI_D_FS DEBUG_FS\r | |
58 | #define EFI_D_POOL DEBUG_POOL\r | |
59 | #define EFI_D_PAGE DEBUG_PAGE\r | |
60 | #define EFI_D_INFO DEBUG_INFO\r | |
c759eb45 | 61 | #define EFI_D_DISPATCH DEBUG_DISPATCH\r |
fb3df220 | 62 | #define EFI_D_VARIABLE DEBUG_VARIABLE\r |
63 | #define EFI_D_BM DEBUG_BM\r | |
64 | #define EFI_D_BLKIO DEBUG_BLKIO\r | |
65 | #define EFI_D_NET DEBUG_NET\r | |
66 | #define EFI_D_UNDI DEBUG_UNDI\r | |
67 | #define EFI_D_LOADFILE DEBUG_LOADFILE\r | |
68 | #define EFI_D_EVENT DEBUG_EVENT\r | |
69 | #define EFI_D_ERROR DEBUG_ERROR\r | |
70 | \r | |
71 | /**\r | |
fb3df220 | 72 | Prints a debug message to the debug output device if the specified error level is enabled.\r |
73 | \r | |
74 | If any bit in ErrorLevel is also set in PcdDebugPrintErrorLevel, then print \r | |
75 | the message specified by Format and the associated variable argument list to \r | |
76 | the debug output device.\r | |
77 | \r | |
78 | If Format is NULL, then ASSERT().\r | |
79 | \r | |
80 | @param ErrorLevel The error level of the debug message.\r | |
81 | @param Format Format string for the debug message to print.\r | |
285010e7 | 82 | @param ... Variable argument list whose contents are accessed \r |
83 | based on the format string specified by Format.\r | |
fb3df220 | 84 | \r |
85 | **/\r | |
86 | VOID\r | |
87 | EFIAPI\r | |
88 | DebugPrint (\r | |
89 | IN UINTN ErrorLevel,\r | |
90 | IN CONST CHAR8 *Format,\r | |
91 | ...\r | |
92 | );\r | |
93 | \r | |
94 | \r | |
95 | /**\r | |
fb3df220 | 96 | Prints an assert message containing a filename, line number, and description. \r |
97 | This may be followed by a breakpoint or a dead loop.\r | |
98 | \r | |
99 | Print a message of the form "ASSERT <FileName>(<LineNumber>): <Description>\n"\r | |
100 | to the debug output device. If DEBUG_PROPERTY_ASSERT_BREAKPOINT_ENABLED bit of \r | |
101 | PcdDebugProperyMask is set then CpuBreakpoint() is called. Otherwise, if \r | |
102 | DEBUG_PROPERTY_ASSERT_DEADLOOP_ENABLED bit of PcdDebugProperyMask is set then \r | |
103 | CpuDeadLoop() is called. If neither of these bits are set, then this function \r | |
104 | returns immediately after the message is printed to the debug output device.\r | |
584125bc | 105 | DebugAssert() must actively prevent recursion. If DebugAssert() is called while\r |
fb3df220 | 106 | processing another DebugAssert(), then DebugAssert() must return immediately.\r |
107 | \r | |
584125bc | 108 | If FileName is NULL, then a <FileName> string of "(NULL) Filename" is printed.\r |
584125bc | 109 | If Description is NULL, then a <Description> string of "(NULL) Description" is printed.\r |
fb3df220 | 110 | \r |
111 | @param FileName Pointer to the name of the source file that generated the assert condition.\r | |
112 | @param LineNumber The line number in the source file that generated the assert condition\r | |
113 | @param Description Pointer to the description of the assert condition.\r | |
114 | \r | |
115 | **/\r | |
116 | VOID\r | |
117 | EFIAPI\r | |
118 | DebugAssert (\r | |
119 | IN CONST CHAR8 *FileName,\r | |
120 | IN UINTN LineNumber,\r | |
121 | IN CONST CHAR8 *Description\r | |
122 | );\r | |
123 | \r | |
124 | \r | |
125 | /**\r | |
fb3df220 | 126 | Fills a target buffer with PcdDebugClearMemoryValue, and returns the target buffer.\r |
127 | \r | |
128 | This function fills Length bytes of Buffer with the value specified by \r | |
129 | PcdDebugClearMemoryValue, and returns Buffer.\r | |
130 | \r | |
131 | If Buffer is NULL, then ASSERT().\r | |
584125bc | 132 | If Length is greater than (MAX_ADDRESS -Buffer + 1), then ASSERT(). \r |
fb3df220 | 133 | \r |
eceb3a4c | 134 | @param Buffer Pointer to the target buffer to be filled with PcdDebugClearMemoryValue.\r |
fb3df220 | 135 | @param Length Number of bytes in Buffer to fill with zeros PcdDebugClearMemoryValue. \r |
136 | \r | |
eceb3a4c | 137 | @return Buffer Pointer to the target buffer filled with PcdDebugClearMemoryValue.\r |
fb3df220 | 138 | \r |
139 | **/\r | |
140 | VOID *\r | |
141 | EFIAPI\r | |
142 | DebugClearMemory (\r | |
143 | OUT VOID *Buffer,\r | |
144 | IN UINTN Length\r | |
145 | );\r | |
146 | \r | |
147 | \r | |
148 | /**\r | |
fb3df220 | 149 | Returns TRUE if ASSERT() macros are enabled.\r |
150 | \r | |
151 | This function returns TRUE if the DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of \r | |
152 | PcdDebugProperyMask is set. Otherwise FALSE is returned.\r | |
153 | \r | |
154 | @retval TRUE The DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of PcdDebugProperyMask is set.\r | |
155 | @retval FALSE The DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of PcdDebugProperyMask is clear.\r | |
156 | \r | |
157 | **/\r | |
158 | BOOLEAN\r | |
159 | EFIAPI\r | |
160 | DebugAssertEnabled (\r | |
161 | VOID\r | |
162 | );\r | |
163 | \r | |
164 | \r | |
3e5c3238 | 165 | /** \r |
166 | Returns TRUE if DEBUG() macros are enabled.\r | |
fb3df220 | 167 | \r |
168 | This function returns TRUE if the DEBUG_PROPERTY_DEBUG_PRINT_ENABLED bit of \r | |
169 | PcdDebugProperyMask is set. Otherwise FALSE is returned.\r | |
170 | \r | |
171 | @retval TRUE The DEBUG_PROPERTY_DEBUG_PRINT_ENABLED bit of PcdDebugProperyMask is set.\r | |
172 | @retval FALSE The DEBUG_PROPERTY_DEBUG_PRINT_ENABLED bit of PcdDebugProperyMask is clear.\r | |
173 | \r | |
174 | **/\r | |
175 | BOOLEAN\r | |
176 | EFIAPI\r | |
177 | DebugPrintEnabled (\r | |
178 | VOID\r | |
179 | );\r | |
180 | \r | |
181 | \r | |
3e5c3238 | 182 | /** \r |
183 | Returns TRUE if DEBUG_CODE() macros are enabled.\r | |
fb3df220 | 184 | \r |
185 | This function returns TRUE if the DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of \r | |
186 | PcdDebugProperyMask is set. Otherwise FALSE is returned.\r | |
187 | \r | |
188 | @retval TRUE The DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of PcdDebugProperyMask is set.\r | |
189 | @retval FALSE The DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of PcdDebugProperyMask is clear.\r | |
190 | \r | |
191 | **/\r | |
192 | BOOLEAN\r | |
193 | EFIAPI\r | |
194 | DebugCodeEnabled (\r | |
195 | VOID\r | |
196 | );\r | |
197 | \r | |
198 | \r | |
3e5c3238 | 199 | /** \r |
200 | Returns TRUE if DEBUG_CLEAR_MEMORY() macro is enabled.\r | |
fb3df220 | 201 | \r |
eceb3a4c | 202 | This function returns TRUE if the DEBUG_PROPERTY_CLEAR_MEMORY_ENABLED bit of \r |
fb3df220 | 203 | PcdDebugProperyMask is set. Otherwise FALSE is returned.\r |
204 | \r | |
eceb3a4c LG |
205 | @retval TRUE The DEBUG_PROPERTY_CLEAR_MEMORY_ENABLED bit of PcdDebugProperyMask is set.\r |
206 | @retval FALSE The DEBUG_PROPERTY_CLEAR_MEMORY_ENABLED bit of PcdDebugProperyMask is clear.\r | |
fb3df220 | 207 | \r |
208 | **/\r | |
209 | BOOLEAN\r | |
210 | EFIAPI\r | |
211 | DebugClearMemoryEnabled (\r | |
212 | VOID\r | |
213 | );\r | |
214 | \r | |
215 | \r | |
3e5c3238 | 216 | /** \r |
fb3df220 | 217 | Internal worker macro that calls DebugAssert().\r |
218 | \r | |
219 | This macro calls DebugAssert() passing in the filename, line number, and \r | |
220 | expression that evailated to FALSE.\r | |
221 | \r | |
222 | @param Expression Boolean expression that evailated to FALSE\r | |
223 | \r | |
224 | **/\r | |
225 | #define _ASSERT(Expression) DebugAssert (__FILE__, __LINE__, #Expression)\r | |
226 | \r | |
227 | \r | |
3e5c3238 | 228 | /** \r |
fb3df220 | 229 | Internal worker macro that calls DebugPrint().\r |
230 | \r | |
231 | This macro calls DebugPrint() passing in the debug error level, a format \r | |
232 | string, and a variable argument list.\r | |
233 | \r | |
234 | @param Expression Expression containing an error level, a format string, \r | |
235 | and a variable argument list based on the format string.\r | |
236 | \r | |
237 | **/\r | |
238 | #define _DEBUG(Expression) DebugPrint Expression\r | |
239 | \r | |
240 | \r | |
3e5c3238 | 241 | /** \r |
fb3df220 | 242 | Macro that calls DebugAssert() if a expression evaluates to FALSE.\r |
243 | \r | |
244 | If the DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of PcdDebugProperyMask is set, \r | |
245 | then this macro evaluates the Boolean expression specified by Expression. If \r | |
246 | Expression evaluates to FALSE, then DebugAssert() is called passing in the \r | |
247 | source filename, source line number, and Expression.\r | |
248 | \r | |
249 | @param Expression Boolean expression\r | |
250 | \r | |
251 | **/\r | |
252 | #define ASSERT(Expression) \\r | |
253 | do { \\r | |
254 | if (DebugAssertEnabled ()) { \\r | |
255 | if (!(Expression)) { \\r | |
256 | _ASSERT (Expression); \\r | |
257 | } \\r | |
258 | } \\r | |
259 | } while (FALSE)\r | |
260 | \r | |
261 | \r | |
3e5c3238 | 262 | /** \r |
fb3df220 | 263 | Macro that calls DebugPrint().\r |
264 | \r | |
265 | If the DEBUG_PROPERTY_DEBUG_PRINT_ENABLED bit of PcdDebugProperyMask is set, \r | |
266 | then this macro passes Expression to DebugPrint().\r | |
267 | \r | |
268 | @param Expression Expression containing an error level, a format string, \r | |
269 | and a variable argument list based on the format string.\r | |
270 | \r | |
271 | \r | |
272 | **/\r | |
273 | #define DEBUG(Expression) \\r | |
274 | do { \\r | |
275 | if (DebugPrintEnabled ()) { \\r | |
276 | _DEBUG (Expression); \\r | |
277 | } \\r | |
278 | } while (FALSE)\r | |
279 | \r | |
280 | \r | |
3e5c3238 | 281 | /** \r |
fb3df220 | 282 | Macro that calls DebugAssert() if an EFI_STATUS evaluates to an error code.\r |
283 | \r | |
284 | If the DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of PcdDebugProperyMask is set, \r | |
285 | then this macro evaluates the EFI_STATUS value specified by StatusParameter. \r | |
286 | If StatusParameter is an error code, then DebugAssert() is called passing in \r | |
287 | the source filename, source line number, and StatusParameter.\r | |
288 | \r | |
289 | @param StatusParameter EFI_STATUS value to evaluate.\r | |
290 | \r | |
291 | **/\r | |
292 | #define ASSERT_EFI_ERROR(StatusParameter) \\r | |
293 | do { \\r | |
294 | if (DebugAssertEnabled ()) { \\r | |
295 | if (EFI_ERROR (StatusParameter)) { \\r | |
296 | DEBUG ((EFI_D_ERROR, "\nASSERT_EFI_ERROR (Status = %r)\n", StatusParameter)); \\r | |
297 | _ASSERT (!EFI_ERROR (StatusParameter)); \\r | |
298 | } \\r | |
299 | } \\r | |
300 | } while (FALSE)\r | |
301 | \r | |
302 | \r | |
3e5c3238 | 303 | /** \r |
fb3df220 | 304 | Macro that calls DebugAssert() if a protocol is already installed in the \r |
305 | handle database.\r | |
306 | \r | |
307 | If the DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of PcdDebugProperyMask is clear, \r | |
308 | then return.\r | |
309 | \r | |
310 | If Handle is NULL, then a check is made to see if the protocol specified by Guid \r | |
311 | is present on any handle in the handle database. If Handle is not NULL, then \r | |
312 | a check is made to see if the protocol specified by Guid is present on the \r | |
313 | handle specified by Handle. If the check finds the protocol, then DebugAssert() \r | |
314 | is called passing in the source filename, source line number, and Guid.\r | |
315 | \r | |
316 | If Guid is NULL, then ASSERT().\r | |
317 | \r | |
318 | @param Handle The handle to check for the protocol. This is an optional \r | |
319 | parameter that may be NULL. If it is NULL, then the entire \r | |
320 | handle database is searched.\r | |
321 | \r | |
322 | @param Guid Pointer to a protocol GUID.\r | |
323 | \r | |
324 | **/\r | |
325 | #define ASSERT_PROTOCOL_ALREADY_INSTALLED(Handle, Guid) \\r | |
326 | do { \\r | |
327 | if (DebugAssertEnabled ()) { \\r | |
328 | VOID *Instance; \\r | |
329 | ASSERT (Guid != NULL); \\r | |
330 | if (Handle == NULL) { \\r | |
331 | if (!EFI_ERROR (gBS->LocateProtocol ((EFI_GUID *)Guid, NULL, &Instance))) { \\r | |
332 | _ASSERT (Guid already installed in database); \\r | |
333 | } \\r | |
334 | } else { \\r | |
335 | if (!EFI_ERROR (gBS->HandleProtocol (Handle, (EFI_GUID *)Guid, &Instance))) { \\r | |
336 | _ASSERT (Guid already installed on Handle); \\r | |
337 | } \\r | |
338 | } \\r | |
339 | } \\r | |
340 | } while (FALSE)\r | |
341 | \r | |
342 | \r | |
343 | /**\r | |
344 | Macro that marks the beginning of debug source code.\r | |
345 | \r | |
346 | If the DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of PcdDebugProperyMask is set, \r | |
347 | then this macro marks the beginning of source code that is included in a module.\r | |
348 | Otherwise, the source lines between DEBUG_CODE_BEGIN() and DEBUG_CODE_END() \r | |
349 | are not included in a module.\r | |
350 | \r | |
351 | **/\r | |
352 | #define DEBUG_CODE_BEGIN() do { if (DebugCodeEnabled ()) { UINT8 __DebugCodeLocal\r | |
353 | \r | |
354 | \r | |
3e5c3238 | 355 | /** \r |
fb3df220 | 356 | Macro that marks the end of debug source code.\r |
357 | \r | |
358 | If the DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of PcdDebugProperyMask is set, \r | |
359 | then this macro marks the end of source code that is included in a module. \r | |
360 | Otherwise, the source lines between DEBUG_CODE_BEGIN() and DEBUG_CODE_END() \r | |
361 | are not included in a module.\r | |
362 | \r | |
363 | **/\r | |
364 | #define DEBUG_CODE_END() __DebugCodeLocal = 0; __DebugCodeLocal++; } } while (FALSE)\r | |
365 | \r | |
366 | \r | |
3e5c3238 | 367 | /** \r |
fb3df220 | 368 | Macro that declares a section of debug source code.\r |
369 | \r | |
370 | If the DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of PcdDebugProperyMask is set, \r | |
371 | then the source code specified by Expression is included in a module. \r | |
372 | Otherwise, the source specified by Expression is not included in a module.\r | |
373 | \r | |
374 | **/\r | |
375 | #define DEBUG_CODE(Expression) \\r | |
376 | DEBUG_CODE_BEGIN (); \\r | |
377 | Expression \\r | |
378 | DEBUG_CODE_END ()\r | |
379 | \r | |
380 | \r | |
3e5c3238 | 381 | /** \r |
fb3df220 | 382 | Macro that calls DebugClearMemory() to clear a buffer to a default value.\r |
383 | \r | |
384 | If the DEBUG_PROPERTY_CLEAR_MEMORY_ENABLED bit of PcdDebugProperyMask is set, \r | |
385 | then this macro calls DebugClearMemory() passing in Address and Length.\r | |
386 | \r | |
387 | @param Address Pointer to a buffer.\r | |
388 | @param Length The number of bytes in the buffer to set.\r | |
389 | \r | |
390 | **/\r | |
391 | #define DEBUG_CLEAR_MEMORY(Address, Length) \\r | |
392 | do { \\r | |
393 | if (DebugClearMemoryEnabled ()) { \\r | |
394 | DebugClearMemory (Address, Length); \\r | |
395 | } \\r | |
396 | } while (FALSE)\r | |
397 | \r | |
398 | \r | |
399 | /**\r | |
fb3df220 | 400 | Macro that calls DebugAssert() if the containing record does not have a \r |
401 | matching signature. If the signatures matches, then a pointer to the data \r | |
402 | structure that contains a specified field of that data structure is returned. \r | |
403 | This is a light weight method hide information by placing a public data \r | |
404 | structure inside a larger private data structure and using a pointer to the \r | |
405 | public data structure to retrieve a pointer to the private data structure.\r | |
406 | \r | |
407 | If the DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of PcdDebugProperyMask is clear, \r | |
408 | then this macro computes the offset, in bytes, of field specified by Field \r | |
409 | from the beginning of the data structure specified by TYPE. This offset is \r | |
410 | subtracted from Record, and is used to return a pointer to a data structure \r | |
411 | of the type specified by TYPE.\r | |
412 | \r | |
413 | If the DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of PcdDebugProperyMask is set, \r | |
414 | then this macro computes the offset, in bytes, of field specified by Field from \r | |
415 | the beginning of the data structure specified by TYPE. This offset is \r | |
416 | subtracted from Record, and is used to compute a pointer to a data structure of \r | |
417 | the type specified by TYPE. The Signature field of the data structure specified \r | |
418 | by TYPE is compared to TestSignature. If the signatures match, then a pointer \r | |
419 | to the pointer to a data structure of the type specified by TYPE is returned. \r | |
420 | If the signatures do not match, then DebugAssert() is called with a description \r | |
421 | of "CR has a bad signature" and Record is returned. \r | |
422 | \r | |
423 | If the data type specified by TYPE does not contain the field specified by Field, \r | |
424 | then the module will not compile.\r | |
425 | \r | |
426 | If TYPE does not contain a field called Signature, then the module will not \r | |
427 | compile.\r | |
428 | \r | |
429 | @param Record Pointer to the field specified by Field within a data \r | |
430 | structure of type TYPE.\r | |
431 | \r | |
432 | @param TYPE The name of the data structure type to return This \r | |
433 | data structure must contain the field specified by Field. \r | |
434 | \r | |
435 | @param Field The name of the field in the data structure specified \r | |
436 | by TYPE to which Record points.\r | |
437 | \r | |
438 | @param TestSignature The 32-bit signature value to match.\r | |
439 | \r | |
440 | **/\r | |
441 | #define CR(Record, TYPE, Field, TestSignature) \\r | |
442 | (DebugAssertEnabled () && (_CR (Record, TYPE, Field)->Signature != TestSignature)) ? \\r | |
443 | (TYPE *) (_ASSERT (CR has Bad Signature), Record) : \\r | |
444 | _CR (Record, TYPE, Field)\r | |
445 | \r | |
446 | #endif\r |