]>
Commit | Line | Data |
---|---|---|
66f50a4b LG |
1 | /** @file\r |
2 | PEI debug lib instance base on gEdkiiDebugPpiGuid to save PEIM size.\r | |
3 | \r | |
4 | Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>\r | |
5 | \r | |
9d510e61 | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
66f50a4b LG |
7 | \r |
8 | **/\r | |
9 | \r | |
10 | #include <PiPei.h>\r | |
11 | #include <Ppi/Debug.h>\r | |
12 | #include <Library/DebugLib.h>\r | |
13 | #include <Library/BaseMemoryLib.h>\r | |
14 | #include <Library/PcdLib.h>\r | |
15 | #include <Library/PeiServicesLib.h>\r | |
16 | #include <Library/DebugPrintErrorLevelLib.h>\r | |
17 | #include <Library/BaseLib.h>\r | |
18 | \r | |
19 | /**\r | |
20 | Prints a debug message to the debug output device if the specified\r | |
21 | error level is enabled.\r | |
22 | \r | |
23 | If any bit in ErrorLevel is also set in DebugPrintErrorLevelLib function\r | |
24 | GetDebugPrintErrorLevel (), then print the message specified by Format and\r | |
25 | the associated variable argument list to the debug output device.\r | |
26 | \r | |
27 | If Format is NULL, then ASSERT().\r | |
28 | \r | |
29 | @param ErrorLevel The error level of the debug message.\r | |
30 | @param Format Format string for the debug message to print.\r | |
31 | @param ... Variable argument list whose contents are accessed\r | |
32 | based on the format string specified by Format.\r | |
33 | \r | |
34 | **/\r | |
35 | VOID\r | |
36 | EFIAPI\r | |
37 | DebugPrint (\r | |
38 | IN UINTN ErrorLevel,\r | |
39 | IN CONST CHAR8 *Format,\r | |
40 | ...\r | |
41 | )\r | |
42 | {\r | |
1436aea4 | 43 | VA_LIST Marker;\r |
66f50a4b LG |
44 | \r |
45 | VA_START (Marker, Format);\r | |
46 | DebugVPrint (ErrorLevel, Format, Marker);\r | |
47 | VA_END (Marker);\r | |
48 | }\r | |
49 | \r | |
66f50a4b LG |
50 | /**\r |
51 | Prints a debug message to the debug output device if the specified\r | |
52 | error level is enabled.\r | |
53 | This function use BASE_LIST which would provide a more compatible\r | |
54 | service than VA_LIST.\r | |
55 | \r | |
56 | If any bit in ErrorLevel is also set in DebugPrintErrorLevelLib function\r | |
57 | GetDebugPrintErrorLevel (), then print the message specified by Format and\r | |
58 | the associated variable argument list to the debug output device.\r | |
59 | \r | |
60 | If Format is NULL, then ASSERT().\r | |
61 | \r | |
62 | @param ErrorLevel The error level of the debug message.\r | |
63 | @param Format Format string for the debug message to print.\r | |
64 | @param BaseListMarker BASE_LIST marker for the variable argument list.\r | |
65 | \r | |
66 | **/\r | |
67 | VOID\r | |
68 | EFIAPI\r | |
69 | DebugBPrint (\r | |
1436aea4 MK |
70 | IN UINTN ErrorLevel,\r |
71 | IN CONST CHAR8 *Format,\r | |
72 | IN BASE_LIST BaseListMarker\r | |
66f50a4b LG |
73 | )\r |
74 | {\r | |
1436aea4 MK |
75 | EFI_STATUS Status;\r |
76 | EDKII_DEBUG_PPI *DebugPpi;\r | |
66f50a4b LG |
77 | \r |
78 | //\r | |
79 | // If Format is NULL, then ASSERT().\r | |
80 | //\r | |
81 | ASSERT (Format != NULL);\r | |
82 | \r | |
83 | //\r | |
84 | // Check driver Debug Level value and global debug level\r | |
85 | //\r | |
86 | if ((ErrorLevel & GetDebugPrintErrorLevel ()) == 0) {\r | |
87 | return;\r | |
88 | }\r | |
89 | \r | |
90 | Status = PeiServicesLocatePpi (\r | |
1436aea4 MK |
91 | &gEdkiiDebugPpiGuid,\r |
92 | 0,\r | |
93 | NULL,\r | |
94 | (VOID **)&DebugPpi\r | |
95 | );\r | |
66f50a4b LG |
96 | if (EFI_ERROR (Status)) {\r |
97 | return;\r | |
98 | }\r | |
99 | \r | |
100 | DebugPpi->DebugBPrint (\r | |
101 | ErrorLevel,\r | |
102 | Format,\r | |
103 | BaseListMarker\r | |
104 | );\r | |
105 | }\r | |
106 | \r | |
66f50a4b LG |
107 | /**\r |
108 | Worker function that convert a VA_LIST to a BASE_LIST based on a\r | |
109 | Null-terminated format string.\r | |
110 | \r | |
111 | @param Format Null-terminated format string.\r | |
112 | @param VaListMarker VA_LIST style variable argument list consumed\r | |
113 | by processing Format.\r | |
114 | @param BaseListMarker BASE_LIST style variable argument list consumed\r | |
115 | by processing Format.\r | |
116 | @param Size The size, in bytes, of the BaseListMarker buffer.\r | |
117 | \r | |
118 | @return TRUE The VA_LIST has been converted to BASE_LIST.\r | |
119 | @return FALSE The VA_LIST has not been converted to BASE_LIST.\r | |
120 | \r | |
121 | **/\r | |
122 | BOOLEAN\r | |
123 | VaListToBaseList (\r | |
124 | IN CONST CHAR8 *Format,\r | |
125 | IN VA_LIST VaListMarker,\r | |
126 | OUT BASE_LIST BaseListMarker,\r | |
127 | IN UINTN Size\r | |
128 | )\r | |
129 | {\r | |
1436aea4 MK |
130 | BASE_LIST BaseListStart;\r |
131 | BOOLEAN Long;\r | |
66f50a4b LG |
132 | \r |
133 | ASSERT (Format != NULL);\r | |
134 | \r | |
135 | ASSERT (BaseListMarker != NULL);\r | |
136 | \r | |
137 | BaseListStart = BaseListMarker;\r | |
138 | \r | |
1436aea4 | 139 | for ( ; *Format != '\0'; Format++) {\r |
66f50a4b LG |
140 | //\r |
141 | // Only format with prefix % is processed.\r | |
142 | //\r | |
143 | if (*Format != '%') {\r | |
144 | continue;\r | |
145 | }\r | |
146 | \r | |
147 | Long = FALSE;\r | |
148 | \r | |
149 | //\r | |
150 | // Parse Flags and Width\r | |
151 | //\r | |
152 | for (Format++; TRUE; Format++) {\r | |
1436aea4 | 153 | if ((*Format == '.') || (*Format == '-') || (*Format == '+') || (*Format == ' ')) {\r |
66f50a4b LG |
154 | //\r |
155 | // These characters in format field are omitted.\r | |
156 | //\r | |
157 | continue;\r | |
158 | }\r | |
1436aea4 MK |
159 | \r |
160 | if ((*Format >= '0') && (*Format <= '9')) {\r | |
66f50a4b LG |
161 | //\r |
162 | // These characters in format field are omitted.\r | |
163 | //\r | |
164 | continue;\r | |
165 | }\r | |
1436aea4 MK |
166 | \r |
167 | if ((*Format == 'L') || (*Format == 'l')) {\r | |
66f50a4b LG |
168 | //\r |
169 | // 'L" or "l" in format field means the number being printed is a UINT64\r | |
170 | //\r | |
171 | Long = TRUE;\r | |
172 | continue;\r | |
173 | }\r | |
1436aea4 | 174 | \r |
66f50a4b LG |
175 | if (*Format == '*') {\r |
176 | //\r | |
177 | // '*' in format field means the precision of the field is specified by\r | |
178 | // a UINTN argument in the argument list.\r | |
179 | //\r | |
180 | BASE_ARG (BaseListMarker, UINTN) = VA_ARG (VaListMarker, UINTN);\r | |
181 | continue;\r | |
182 | }\r | |
1436aea4 | 183 | \r |
66f50a4b LG |
184 | if (*Format == '\0') {\r |
185 | //\r | |
186 | // Make no output if Format string terminates unexpectedly when\r | |
187 | // looking up for flag, width, precision and type.\r | |
188 | //\r | |
189 | Format--;\r | |
190 | }\r | |
1436aea4 | 191 | \r |
66f50a4b LG |
192 | //\r |
193 | // When valid argument type detected or format string terminates unexpectedly,\r | |
194 | // the inner loop is done.\r | |
195 | //\r | |
196 | break;\r | |
197 | }\r | |
198 | \r | |
199 | //\r | |
200 | // Pack variable arguments into the storage area following EFI_DEBUG_INFO.\r | |
201 | //\r | |
202 | if ((*Format == 'p') && (sizeof (VOID *) > 4)) {\r | |
203 | Long = TRUE;\r | |
204 | }\r | |
1436aea4 MK |
205 | \r |
206 | if ((*Format == 'p') || (*Format == 'X') || (*Format == 'x') || (*Format == 'd') || (*Format == 'u')) {\r | |
66f50a4b LG |
207 | if (Long) {\r |
208 | BASE_ARG (BaseListMarker, INT64) = VA_ARG (VaListMarker, INT64);\r | |
209 | } else {\r | |
210 | BASE_ARG (BaseListMarker, int) = VA_ARG (VaListMarker, int);\r | |
211 | }\r | |
1436aea4 | 212 | } else if ((*Format == 's') || (*Format == 'S') || (*Format == 'a') || (*Format == 'g') || (*Format == 't')) {\r |
66f50a4b LG |
213 | BASE_ARG (BaseListMarker, VOID *) = VA_ARG (VaListMarker, VOID *);\r |
214 | } else if (*Format == 'c') {\r | |
215 | BASE_ARG (BaseListMarker, UINTN) = VA_ARG (VaListMarker, UINTN);\r | |
216 | } else if (*Format == 'r') {\r | |
217 | BASE_ARG (BaseListMarker, RETURN_STATUS) = VA_ARG (VaListMarker, RETURN_STATUS);\r | |
218 | }\r | |
219 | \r | |
220 | //\r | |
221 | // If the converted BASE_LIST is larger than the size of BaseListMarker, then return FALSE\r | |
222 | //\r | |
223 | if (((UINTN)BaseListMarker - (UINTN)BaseListStart) > Size) {\r | |
224 | return FALSE;\r | |
225 | }\r | |
226 | }\r | |
227 | \r | |
228 | return TRUE;\r | |
229 | }\r | |
230 | \r | |
66f50a4b LG |
231 | /**\r |
232 | Prints a debug message to the debug output device if the specified\r | |
233 | error level is enabled.\r | |
234 | \r | |
235 | If any bit in ErrorLevel is also set in DebugPrintErrorLevelLib function\r | |
236 | GetDebugPrintErrorLevel (), then print the message specified by Format and\r | |
237 | the associated variable argument list to the debug output device.\r | |
238 | \r | |
239 | If Format is NULL, then ASSERT().\r | |
240 | \r | |
241 | @param ErrorLevel The error level of the debug message.\r | |
242 | @param Format Format string for the debug message to print.\r | |
243 | @param VaListMarker VA_LIST marker for the variable argument list.\r | |
244 | \r | |
245 | **/\r | |
246 | VOID\r | |
247 | EFIAPI\r | |
248 | DebugVPrint (\r | |
1436aea4 MK |
249 | IN UINTN ErrorLevel,\r |
250 | IN CONST CHAR8 *Format,\r | |
251 | IN VA_LIST VaListMarker\r | |
66f50a4b LG |
252 | )\r |
253 | {\r | |
1436aea4 MK |
254 | UINT64 BaseListMarker[256 / sizeof (UINT64)];\r |
255 | BOOLEAN Converted;\r | |
66f50a4b LG |
256 | \r |
257 | //\r | |
258 | // Convert the VaList to BaseList\r | |
259 | //\r | |
260 | Converted = VaListToBaseList (\r | |
261 | Format,\r | |
262 | VaListMarker,\r | |
263 | (BASE_LIST)BaseListMarker,\r | |
264 | sizeof (BaseListMarker) - 8\r | |
265 | );\r | |
266 | \r | |
267 | if (!Converted) {\r | |
268 | return;\r | |
269 | }\r | |
270 | \r | |
271 | DebugBPrint (ErrorLevel, Format, (BASE_LIST)BaseListMarker);\r | |
272 | }\r | |
273 | \r | |
66f50a4b LG |
274 | /**\r |
275 | Prints an assert message containing a filename, line number, and description.\r | |
276 | This may be followed by a breakpoint or a dead loop.\r | |
277 | \r | |
278 | Print a message of the form "ASSERT <FileName>(<LineNumber>): <Description>\n"\r | |
279 | to the debug output device. If DEBUG_PROPERTY_ASSERT_BREAKPOINT_ENABLED bit of\r | |
280 | PcdDebugProperyMask is set then CpuBreakpoint() is called. Otherwise, if\r | |
281 | DEBUG_PROPERTY_ASSERT_DEADLOOP_ENABLED bit of PcdDebugProperyMask is set then\r | |
282 | CpuDeadLoop() is called. If neither of these bits are set, then this function\r | |
283 | returns immediately after the message is printed to the debug output device.\r | |
284 | DebugAssert() must actively prevent recursion. If DebugAssert() is called while\r | |
285 | processing another DebugAssert(), then DebugAssert() must return immediately.\r | |
286 | \r | |
287 | If FileName is NULL, then a <FileName> string of "(NULL) Filename" is printed.\r | |
288 | If Description is NULL, then a <Description> string of "(NULL) Description" is printed.\r | |
289 | \r | |
290 | @param FileName The pointer to the name of the source file that generated the assert condition.\r | |
291 | @param LineNumber The line number in the source file that generated the assert condition\r | |
292 | @param Description The pointer to the description of the assert condition.\r | |
293 | \r | |
294 | **/\r | |
295 | VOID\r | |
296 | EFIAPI\r | |
297 | DebugAssert (\r | |
298 | IN CONST CHAR8 *FileName,\r | |
299 | IN UINTN LineNumber,\r | |
300 | IN CONST CHAR8 *Description\r | |
301 | )\r | |
302 | {\r | |
1436aea4 MK |
303 | EFI_STATUS Status;\r |
304 | EDKII_DEBUG_PPI *DebugPpi;\r | |
66f50a4b LG |
305 | \r |
306 | Status = PeiServicesLocatePpi (\r | |
1436aea4 MK |
307 | &gEdkiiDebugPpiGuid,\r |
308 | 0,\r | |
309 | NULL,\r | |
310 | (VOID **)&DebugPpi\r | |
311 | );\r | |
66f50a4b LG |
312 | if (EFI_ERROR (Status)) {\r |
313 | //\r | |
314 | // Generate a Breakpoint, DeadLoop, or NOP based on PCD settings\r | |
315 | //\r | |
316 | if ((PcdGet8 (PcdDebugPropertyMask) & DEBUG_PROPERTY_ASSERT_BREAKPOINT_ENABLED) != 0) {\r | |
317 | CpuBreakpoint ();\r | |
318 | } else if ((PcdGet8 (PcdDebugPropertyMask) & DEBUG_PROPERTY_ASSERT_DEADLOOP_ENABLED) != 0) {\r | |
319 | CpuDeadLoop ();\r | |
320 | }\r | |
321 | } else {\r | |
322 | DebugPpi->DebugAssert (\r | |
323 | FileName,\r | |
324 | LineNumber,\r | |
325 | Description\r | |
326 | );\r | |
327 | }\r | |
328 | }\r | |
329 | \r | |
66f50a4b LG |
330 | /**\r |
331 | Fills a target buffer with PcdDebugClearMemoryValue, and returns the target buffer.\r | |
332 | \r | |
333 | This function fills Length bytes of Buffer with the value specified by\r | |
334 | PcdDebugClearMemoryValue, and returns Buffer.\r | |
335 | \r | |
336 | If Buffer is NULL, then ASSERT().\r | |
337 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r | |
338 | \r | |
339 | @param Buffer The pointer to the target buffer to be filled with PcdDebugClearMemoryValue.\r | |
340 | @param Length The number of bytes in Buffer to fill with zeros PcdDebugClearMemoryValue.\r | |
341 | \r | |
342 | @return Buffer The pointer to the target buffer filled with PcdDebugClearMemoryValue.\r | |
343 | \r | |
344 | **/\r | |
345 | VOID *\r | |
346 | EFIAPI\r | |
347 | DebugClearMemory (\r | |
348 | OUT VOID *Buffer,\r | |
349 | IN UINTN Length\r | |
350 | )\r | |
351 | {\r | |
352 | ASSERT (Buffer != NULL);\r | |
353 | \r | |
354 | return SetMem (Buffer, Length, PcdGet8 (PcdDebugClearMemoryValue));\r | |
355 | }\r | |
356 | \r | |
66f50a4b LG |
357 | /**\r |
358 | Returns TRUE if ASSERT() macros are enabled.\r | |
359 | \r | |
360 | This function returns TRUE if the DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of\r | |
361 | PcdDebugProperyMask is set. Otherwise, FALSE is returned.\r | |
362 | \r | |
363 | @retval TRUE The DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of PcdDebugProperyMask is set.\r | |
364 | @retval FALSE The DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of PcdDebugProperyMask is clear.\r | |
365 | \r | |
366 | **/\r | |
367 | BOOLEAN\r | |
368 | EFIAPI\r | |
369 | DebugAssertEnabled (\r | |
370 | VOID\r | |
371 | )\r | |
372 | {\r | |
1436aea4 | 373 | return (BOOLEAN)((PcdGet8 (PcdDebugPropertyMask) & DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED) != 0);\r |
66f50a4b LG |
374 | }\r |
375 | \r | |
66f50a4b LG |
376 | /**\r |
377 | Returns TRUE if DEBUG() macros are enabled.\r | |
378 | \r | |
379 | This function returns TRUE if the DEBUG_PROPERTY_DEBUG_PRINT_ENABLED bit of\r | |
380 | PcdDebugProperyMask is set. Otherwise, FALSE is returned.\r | |
381 | \r | |
382 | @retval TRUE The DEBUG_PROPERTY_DEBUG_PRINT_ENABLED bit of PcdDebugProperyMask is set.\r | |
383 | @retval FALSE The DEBUG_PROPERTY_DEBUG_PRINT_ENABLED bit of PcdDebugProperyMask is clear.\r | |
384 | \r | |
385 | **/\r | |
386 | BOOLEAN\r | |
387 | EFIAPI\r | |
388 | DebugPrintEnabled (\r | |
389 | VOID\r | |
390 | )\r | |
391 | {\r | |
1436aea4 | 392 | return (BOOLEAN)((PcdGet8 (PcdDebugPropertyMask) & DEBUG_PROPERTY_DEBUG_PRINT_ENABLED) != 0);\r |
66f50a4b LG |
393 | }\r |
394 | \r | |
66f50a4b LG |
395 | /**\r |
396 | Returns TRUE if DEBUG_CODE() macros are enabled.\r | |
397 | \r | |
398 | This function returns TRUE if the DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of\r | |
399 | PcdDebugProperyMask is set. Otherwise, FALSE is returned.\r | |
400 | \r | |
401 | @retval TRUE The DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of PcdDebugProperyMask is set.\r | |
402 | @retval FALSE The DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of PcdDebugProperyMask is clear.\r | |
403 | \r | |
404 | **/\r | |
405 | BOOLEAN\r | |
406 | EFIAPI\r | |
407 | DebugCodeEnabled (\r | |
408 | VOID\r | |
409 | )\r | |
410 | {\r | |
1436aea4 | 411 | return (BOOLEAN)((PcdGet8 (PcdDebugPropertyMask) & DEBUG_PROPERTY_DEBUG_CODE_ENABLED) != 0);\r |
66f50a4b LG |
412 | }\r |
413 | \r | |
66f50a4b LG |
414 | /**\r |
415 | Returns TRUE if DEBUG_CLEAR_MEMORY() macro is enabled.\r | |
416 | \r | |
417 | This function returns TRUE if the DEBUG_PROPERTY_CLEAR_MEMORY_ENABLED bit of\r | |
418 | PcdDebugProperyMask is set. Otherwise, FALSE is returned.\r | |
419 | \r | |
420 | @retval TRUE The DEBUG_PROPERTY_CLEAR_MEMORY_ENABLED bit of PcdDebugProperyMask is set.\r | |
421 | @retval FALSE The DEBUG_PROPERTY_CLEAR_MEMORY_ENABLED bit of PcdDebugProperyMask is clear.\r | |
422 | \r | |
423 | **/\r | |
424 | BOOLEAN\r | |
425 | EFIAPI\r | |
426 | DebugClearMemoryEnabled (\r | |
427 | VOID\r | |
428 | )\r | |
429 | {\r | |
1436aea4 | 430 | return (BOOLEAN)((PcdGet8 (PcdDebugPropertyMask) & DEBUG_PROPERTY_CLEAR_MEMORY_ENABLED) != 0);\r |
66f50a4b LG |
431 | }\r |
432 | \r | |
66f50a4b LG |
433 | /**\r |
434 | Returns TRUE if any one of the bit is set both in ErrorLevel and PcdFixedDebugPrintErrorLevel.\r | |
435 | \r | |
436 | This function compares the bit mask of ErrorLevel and PcdFixedDebugPrintErrorLevel.\r | |
437 | \r | |
438 | @retval TRUE Current ErrorLevel is supported.\r | |
439 | @retval FALSE Current ErrorLevel is not supported.\r | |
440 | \r | |
441 | **/\r | |
442 | BOOLEAN\r | |
443 | EFIAPI\r | |
444 | DebugPrintLevelEnabled (\r | |
1436aea4 | 445 | IN CONST UINTN ErrorLevel\r |
66f50a4b LG |
446 | )\r |
447 | {\r | |
1436aea4 | 448 | return (BOOLEAN)((ErrorLevel & PcdGet32 (PcdFixedDebugPrintErrorLevel)) != 0);\r |
66f50a4b | 449 | }\r |