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2287f237 1/** @file\r
2 Debug Library that fowards all messages to ReportStatusCode()\r
3\r
4 Copyright (c) 2006, Intel Corporation<BR>\r
5 All rights reserved. This program and the accompanying materials\r
6 are licensed and made available under the terms and conditions of the BSD License\r
7 which accompanies this distribution. The full text of the license may be found at\r
8 http://opensource.org/licenses/bsd-license.php\r
9\r
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12\r
13**/\r
14\r
15\r
16\r
17#include <FrameworkPei.h>\r
551ed06f 18#include <FrameworkModuleBase.h>\r
2287f237 19#include <Guid/StatusCodeDataTypeId.h>\r
3a6064fa 20#include <Guid/StatusCodeDataTypeDebug.h>\r
2287f237 21\r
22#include <Library/DebugLib.h>\r
23#include <Library/BaseLib.h>\r
24#include <Library/BaseMemoryLib.h>\r
25#include <Library/ReportStatusCodeLib.h>\r
26#include <Library/PcdLib.h>\r
27\r
2287f237 28/**\r
29\r
30 Prints a debug message to the debug output device if the specified error level is enabled.\r
31\r
32 If any bit in ErrorLevel is also set in PcdDebugPrintErrorLevel, then print\r
33 the message specified by Format and the associated variable argument list to\r
34 the debug output device.\r
35\r
36 If Format is NULL, then ASSERT().\r
37\r
38 @param ErrorLevel The error level of the debug message.\r
39 @param Format Format string for the debug message to print.\r
967c09fa 40 @param ... Variable argument list whose contents are accessed \r
41 based on the format string specified by Format.\r
2287f237 42\r
43**/\r
44VOID\r
45EFIAPI\r
46DebugPrint (\r
47 IN UINTN ErrorLevel,\r
48 IN CONST CHAR8 *Format,\r
49 ...\r
50 )\r
51{\r
52 UINT64 Buffer[EFI_STATUS_CODE_DATA_MAX_SIZE / sizeof (UINT64)];\r
53 EFI_DEBUG_INFO *DebugInfo;\r
54 UINTN TotalSize;\r
ca9938b8 55 VA_LIST VaListMarker;\r
56 BASE_LIST BaseListMarker;\r
57 CHAR8 *FormatString;\r
58 BOOLEAN Long;\r
59 BOOLEAN Done;\r
2287f237 60\r
61 //\r
62 // If Format is NULL, then ASSERT().\r
63 //\r
64 ASSERT (Format != NULL);\r
65\r
66 //\r
67 // Check driver Debug Level value and global debug level\r
68 //\r
69 if ((ErrorLevel & PcdGet32(PcdDebugPrintErrorLevel)) == 0) {\r
70 return;\r
71 }\r
72\r
ca9938b8 73 //\r
74 // Compute the total size of the record\r
75 //\r
2287f237 76 TotalSize = sizeof (EFI_DEBUG_INFO) + 12 * sizeof (UINT64) + AsciiStrLen (Format) + 1;\r
ca9938b8 77\r
78 //\r
79 // If the TotalSize is larger than the maximum record size, then ASSERT()\r
80 //\r
81 ASSERT (TotalSize <= EFI_STATUS_CODE_DATA_MAX_SIZE);\r
82\r
83 //\r
84 // If the TotalSize is larger than the maximum record size, then return\r
85 //\r
2287f237 86 if (TotalSize > EFI_STATUS_CODE_DATA_MAX_SIZE) {\r
87 return;\r
88 }\r
89\r
90 //\r
ca9938b8 91 // Fill in EFI_DEBUG_INFO\r
2287f237 92 //\r
ca9938b8 93 DebugInfo = (EFI_DEBUG_INFO *)Buffer;\r
2287f237 94 DebugInfo->ErrorLevel = (UINT32)ErrorLevel;\r
ca9938b8 95 BaseListMarker = (BASE_LIST)(DebugInfo + 1);\r
3d7dfb38 96 FormatString = (CHAR8 *)((UINT64 *)(DebugInfo + 1) + 12);\r
ca9938b8 97\r
98 //\r
99 // Copy the Format string into the record\r
100 //\r
101 AsciiStrCpy (FormatString, Format);\r
2287f237 102\r
103 //\r
104 // 256 byte mini Var Arg stack. That is followed by the format string.\r
105 //\r
ca9938b8 106 VA_START (VaListMarker, Format);\r
107 for (; *Format != '\0'; Format++) {\r
108 if (*Format != '%') {\r
109 continue;\r
110 }\r
111 Long = FALSE;\r
112 //\r
113 // Parse Flags and Width\r
114 //\r
115 for (Done = FALSE; !Done; ) {\r
116 Format++;\r
117 switch (*Format) {\r
118 case '.': \r
119 case '-': \r
120 case '+': \r
121 case ' ': \r
122 case ',': \r
123 case '0':\r
124 case '1':\r
125 case '2':\r
126 case '3':\r
127 case '4':\r
128 case '5':\r
129 case '6':\r
130 case '7':\r
131 case '8':\r
132 case '9':\r
133 break;\r
134 case 'L':\r
135 case 'l': \r
136 Long = TRUE;\r
137 break;\r
138 case '*':\r
139 BASE_ARG (BaseListMarker, UINTN) = VA_ARG (VaListMarker, UINTN);\r
140 break;\r
141 case '\0':\r
142 //\r
143 // Make no output if Format string terminates unexpectedly when\r
144 // looking up for flag, width, precision and type. \r
145 //\r
146 Format--;\r
147 //\r
148 // break skipped on purpose.\r
149 //\r
150 default:\r
151 Done = TRUE;\r
152 break;\r
153 }\r
154 } \r
155 \r
156 //\r
157 // Handle each argument type\r
158 //\r
159 switch (*Format) {\r
160 case 'p':\r
161 if (sizeof (VOID *) > 4) {\r
162 Long = TRUE;\r
163 }\r
164 case 'X':\r
165 case 'x':\r
166 case 'd':\r
167 if (Long) {\r
168 BASE_ARG (BaseListMarker, INT64) = VA_ARG (VaListMarker, INT64);\r
169 } else {\r
170 BASE_ARG (BaseListMarker, int) = VA_ARG (VaListMarker, int);\r
171 }\r
172 break;\r
173 case 's':\r
174 case 'S':\r
175 case 'a':\r
176 case 'g':\r
177 case 't':\r
178 BASE_ARG (BaseListMarker, VOID *) = VA_ARG (VaListMarker, VOID *);\r
179 break;\r
180 case 'c':\r
181 BASE_ARG (BaseListMarker, UINTN) = VA_ARG (VaListMarker, UINTN);\r
182 break;\r
183 case 'r':\r
184 BASE_ARG (BaseListMarker, RETURN_STATUS) = VA_ARG (VaListMarker, RETURN_STATUS);\r
185 break;\r
186 }\r
187\r
188 //\r
189 // If the converted BASE_LIST is larger than the 12 * sizeof (UINT64) allocated bytes, then ASSERT()\r
190 // This indicates that the DEBUG() macro is passing in more argument than can be handled by \r
191 // the EFI_DEBUG_INFO record\r
192 //\r
3d7dfb38 193 ASSERT ((CHAR8 *)BaseListMarker <= FormatString);\r
ca9938b8 194\r
195 //\r
196 // If the converted BASE_LIST is larger than the 12 * sizeof (UINT64) allocated bytes, then return\r
197 //\r
3d7dfb38 198 if ((CHAR8 *)BaseListMarker > FormatString) {\r
ca9938b8 199 return;\r
200 }\r
2287f237 201 }\r
ca9938b8 202 VA_END (VaListMarker);\r
2287f237 203\r
ca9938b8 204 //\r
205 // Send the DebugInfo record\r
206 //\r
2287f237 207 REPORT_STATUS_CODE_EX (\r
208 EFI_DEBUG_CODE,\r
209 (EFI_SOFTWARE_DXE_BS_DRIVER | EFI_DC_UNSPECIFIED),\r
210 0,\r
211 NULL,\r
212 &gEfiStatusCodeDataTypeDebugGuid,\r
213 DebugInfo,\r
214 TotalSize\r
215 );\r
216}\r
217\r
2287f237 218/**\r
219\r
220 Prints an assert message containing a filename, line number, and description.\r
221 This may be followed by a breakpoint or a dead loop.\r
222\r
223 Print a message of the form "ASSERT <FileName>(<LineNumber>): <Description>\n"\r
224 to the debug output device. If DEBUG_PROPERTY_ASSERT_BREAKPOINT_ENABLED bit of\r
225 PcdDebugProperyMask is set then CpuBreakpoint() is called. Otherwise, if\r
226 DEBUG_PROPERTY_ASSERT_DEADLOOP_ENABLED bit of PcdDebugProperyMask is set then\r
227 CpuDeadLoop() is called. If neither of these bits are set, then this function\r
228 returns immediately after the message is printed to the debug output device.\r
584125bc 229 DebugAssert() must actively prevent recursion. If DebugAssert() is called while\r
2287f237 230 processing another DebugAssert(), then DebugAssert() must return immediately.\r
231\r
232 If FileName is NULL, then a <FileName> string of "(NULL) Filename" is printed.\r
233\r
234 If Description is NULL, then a <Description> string of "(NULL) Description" is printed.\r
235\r
236 @param FileName Pointer to the name of the source file that generated the assert condition.\r
237 @param LineNumber The line number in the source file that generated the assert condition\r
238 @param Description Pointer to the description of the assert condition.\r
239\r
240**/\r
241VOID\r
242EFIAPI\r
243DebugAssert (\r
244 IN CONST CHAR8 *FileName,\r
245 IN UINTN LineNumber,\r
246 IN CONST CHAR8 *Description\r
247 )\r
248{\r
249 UINT64 Buffer[EFI_STATUS_CODE_DATA_MAX_SIZE / sizeof(UINT64)];\r
250 EFI_DEBUG_ASSERT_DATA *AssertData;\r
251 UINTN TotalSize;\r
252 CHAR8 *Temp;\r
253 UINTN FileNameLength;\r
254 UINTN DescriptionLength;\r
255\r
256 //\r
257 // Make sure it will all fit in the passed in buffer\r
258 //\r
259 FileNameLength = AsciiStrLen (FileName);\r
260 DescriptionLength = AsciiStrLen (Description);\r
261 TotalSize = sizeof (EFI_DEBUG_ASSERT_DATA) + FileNameLength + 1 + DescriptionLength + 1;\r
262 if (TotalSize <= EFI_STATUS_CODE_DATA_MAX_SIZE) {\r
263 //\r
264 // Fill in EFI_DEBUG_ASSERT_DATA\r
265 //\r
266 AssertData = (EFI_DEBUG_ASSERT_DATA *)Buffer;\r
267 AssertData->LineNumber = (UINT32)LineNumber;\r
268\r
269 //\r
270 // Copy Ascii FileName including NULL.\r
271 //\r
272 Temp = AsciiStrCpy ((CHAR8 *)(AssertData + 1), FileName);\r
273\r
274 //\r
275 // Copy Ascii Description\r
276 //\r
277 AsciiStrCpy (Temp + AsciiStrLen (FileName) + 1, Description);\r
278\r
8191cd5e 279 REPORT_STATUS_CODE_EX (\r
2287f237 280 (EFI_ERROR_CODE | EFI_ERROR_UNRECOVERED),\r
281 (EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_EC_ILLEGAL_SOFTWARE_STATE),\r
8191cd5e
LG
282 0,\r
283 NULL,\r
1872ccab 284 NULL,\r
2287f237 285 AssertData,\r
286 TotalSize\r
287 );\r
288 }\r
289\r
290 //\r
291 // Generate a Breakpoint, DeadLoop, or NOP based on PCD settings\r
292 //\r
293 if ((PcdGet8(PcdDebugPropertyMask) & DEBUG_PROPERTY_ASSERT_BREAKPOINT_ENABLED) != 0) {\r
294 CpuBreakpoint ();\r
295 } else if ((PcdGet8(PcdDebugPropertyMask) & DEBUG_PROPERTY_ASSERT_DEADLOOP_ENABLED) != 0) {\r
296 CpuDeadLoop ();\r
297 }\r
298}\r
299\r
300\r
301/**\r
302\r
303 Fills a target buffer with PcdDebugClearMemoryValue, and returns the target buffer.\r
304\r
305 This function fills Length bytes of Buffer with the value specified by\r
306 PcdDebugClearMemoryValue, and returns Buffer.\r
307\r
308 If Buffer is NULL, then ASSERT().\r
309\r
310 If Length is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT().\r
311\r
312 @param Buffer Pointer to the target buffer to fill with PcdDebugClearMemoryValue.\r
313 @param Length Number of bytes in Buffer to fill with zeros PcdDebugClearMemoryValue.\r
314\r
315 @return Buffer\r
316\r
317**/\r
318VOID *\r
319EFIAPI\r
320DebugClearMemory (\r
321 OUT VOID *Buffer,\r
322 IN UINTN Length\r
323 )\r
324{\r
325 //\r
326 // If Buffer is NULL, then ASSERT().\r
327 //\r
328 ASSERT (Buffer != NULL);\r
329\r
330 //\r
331 // SetMem() checks for the the ASSERT() condition on Length and returns Buffer\r
332 //\r
333 return SetMem (Buffer, Length, PcdGet8(PcdDebugClearMemoryValue));\r
334}\r
335\r
336\r
337/**\r
338\r
339 Returns TRUE if ASSERT() macros are enabled.\r
340\r
341 This function returns TRUE if the DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of\r
342 PcdDebugProperyMask is set. Otherwise FALSE is returned.\r
343\r
344 @retval TRUE The DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of PcdDebugProperyMask is set.\r
345 @retval FALSE The DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of PcdDebugProperyMask is clear.\r
346\r
347**/\r
348BOOLEAN\r
349EFIAPI\r
350DebugAssertEnabled (\r
351 VOID\r
352 )\r
353{\r
354 return (BOOLEAN) ((PcdGet8(PcdDebugPropertyMask) & DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED) != 0);\r
355}\r
356\r
357\r
358/**\r
359\r
360 Returns TRUE if DEBUG()macros are enabled.\r
361\r
362 This function returns TRUE if the DEBUG_PROPERTY_DEBUG_PRINT_ENABLED bit of\r
363 PcdDebugProperyMask is set. Otherwise FALSE is returned.\r
364\r
365 @retval TRUE The DEBUG_PROPERTY_DEBUG_PRINT_ENABLED bit of PcdDebugProperyMask is set.\r
366 @retval FALSE The DEBUG_PROPERTY_DEBUG_PRINT_ENABLED bit of PcdDebugProperyMask is clear.\r
367\r
368**/\r
369BOOLEAN\r
370EFIAPI\r
371DebugPrintEnabled (\r
372 VOID\r
373 )\r
374{\r
375 return (BOOLEAN) ((PcdGet8(PcdDebugPropertyMask) & DEBUG_PROPERTY_DEBUG_PRINT_ENABLED) != 0);\r
376}\r
377\r
378\r
379/**\r
380\r
381 Returns TRUE if DEBUG_CODE()macros are enabled.\r
382\r
383 This function returns TRUE if the DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of\r
384 PcdDebugProperyMask is set. Otherwise FALSE is returned.\r
385\r
386 @retval TRUE The DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of PcdDebugProperyMask is set.\r
387 @retval FALSE The DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of PcdDebugProperyMask is clear.\r
388\r
389**/\r
390BOOLEAN\r
391EFIAPI\r
392DebugCodeEnabled (\r
393 VOID\r
394 )\r
395{\r
396 return (BOOLEAN) ((PcdGet8(PcdDebugPropertyMask) & DEBUG_PROPERTY_DEBUG_CODE_ENABLED) != 0);\r
397}\r
398\r
399\r
400/**\r
401\r
402 Returns TRUE if DEBUG_CLEAR_MEMORY()macro is enabled.\r
403\r
404 This function returns TRUE if the DEBUG_PROPERTY_DEBUG_CLEAR_MEMORY_ENABLED bit of\r
405 PcdDebugProperyMask is set. Otherwise FALSE is returned.\r
406\r
407 @retval TRUE The DEBUG_PROPERTY_DEBUG_CLEAR_MEMORY_ENABLED bit of PcdDebugProperyMask is set.\r
408 @retval FALSE The DEBUG_PROPERTY_DEBUG_CLEAR_MEMORY_ENABLED bit of PcdDebugProperyMask is clear.\r
409\r
410**/\r
411BOOLEAN\r
412EFIAPI\r
413DebugClearMemoryEnabled (\r
414 VOID\r
415 )\r
416{\r
417 return (BOOLEAN) ((PcdGet8(PcdDebugPropertyMask) & DEBUG_PROPERTY_CLEAR_MEMORY_ENABLED) != 0);\r
418}\r