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ArmPkg/DefaultExceptionHandlerLib: improve formatting of backtrace
[mirror_edk2.git] / ArmPkg / Library / DefaultExceptionHandlerLib / AArch64 / DefaultExceptionHandler.c
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25402f5d
HL		 1/** @file\r
2 Default exception handler\r
3\r
4 Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>\r
451b6658 5 Copyright (c) 2011 - 2014, ARM Ltd. All rights reserved.<BR>\r
25402f5d
HL		 6\r
7 This program and the accompanying materials\r
8 are licensed and made available under the terms and conditions of the BSD License\r
9 which accompanies this distribution. The full text of the license may be found at\r
10 http://opensource.org/licenses/bsd-license.php\r
11\r
12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
14\r
15**/\r
16\r
17#include <Uefi.h>\r
18#include <Library/UefiLib.h>\r
19#include <Library/BaseLib.h>\r
20#include <Library/DebugLib.h>\r
21#include <Library/PeCoffGetEntryPointLib.h>\r
22#include <Library/PrintLib.h>\r
23#include <Library/ArmDisassemblerLib.h>\r
24#include <Library/SerialPortLib.h>\r
25\r
26#include <Guid/DebugImageInfoTable.h>\r
27#include <Protocol/DebugSupport.h>\r
28#include <Protocol/LoadedImage.h>\r
29\r
25402f5d
HL		 30STATIC CHAR8 *gExceptionTypeString[] = {\r
31 "Synchronous",\r
32 "IRQ",\r
33 "FIQ",\r
34 "SError"\r
35};\r
36\r
cd82e330
AB		 37STATIC BOOLEAN mRecursiveException;\r
38\r
25402f5d
HL		 39CHAR8 *\r
40GetImageName (\r
41 IN UINTN FaultAddress,\r
42 OUT UINTN *ImageBase,\r
43 OUT UINTN *PeCoffSizeOfHeaders\r
44 );\r
45\r
451b6658
OM		 46STATIC\r
47VOID\r
48DescribeInstructionOrDataAbort (\r
49 IN CHAR8 *AbortType,\r
50 IN UINTN Iss\r
51 )\r
52{\r
53 CHAR8 *AbortCause;\r
54\r
55 switch (Iss & 0x3f) {\r
56 case 0x0: AbortCause = "Address size fault, zeroth level of translation or translation table base register"; break;\r
57 case 0x1: AbortCause = "Address size fault, first level"; break;\r
58 case 0x2: AbortCause = "Address size fault, second level"; break;\r
59 case 0x3: AbortCause = "Address size fault, third level"; break;\r
60 case 0x4: AbortCause = "Translation fault, zeroth level"; break;\r
61 case 0x5: AbortCause = "Translation fault, first level"; break;\r
62 case 0x6: AbortCause = "Translation fault, second level"; break;\r
63 case 0x7: AbortCause = "Translation fault, third level"; break;\r
64 case 0x9: AbortCause = "Access flag fault, first level"; break;\r
65 case 0xa: AbortCause = "Access flag fault, second level"; break;\r
66 case 0xb: AbortCause = "Access flag fault, third level"; break;\r
67 case 0xd: AbortCause = "Permission fault, first level"; break;\r
68 case 0xe: AbortCause = "Permission fault, second level"; break;\r
69 case 0xf: AbortCause = "Permission fault, third level"; break;\r
70 case 0x10: AbortCause = "Synchronous external abort"; break;\r
71 case 0x18: AbortCause = "Synchronous parity error on memory access"; break;\r
72 case 0x11: AbortCause = "Asynchronous external abort"; break;\r
73 case 0x19: AbortCause = "Asynchronous parity error on memory access"; break;\r
74 case 0x14: AbortCause = "Synchronous external abort on translation table walk, zeroth level"; break;\r
75 case 0x15: AbortCause = "Synchronous external abort on translation table walk, first level"; break;\r
76 case 0x16: AbortCause = "Synchronous external abort on translation table walk, second level"; break;\r
77 case 0x17: AbortCause = "Synchronous external abort on translation table walk, third level"; break;\r
78 case 0x1c: AbortCause = "Synchronous parity error on memory access on translation table walk, zeroth level"; break;\r
79 case 0x1d: AbortCause = "Synchronous parity error on memory access on translation table walk, first level"; break;\r
80 case 0x1e: AbortCause = "Synchronous parity error on memory access on translation table walk, second level"; break;\r
81 case 0x1f: AbortCause = "Synchronous parity error on memory access on translation table walk, third level"; break;\r
82 case 0x21: AbortCause = "Alignment fault"; break;\r
83 case 0x22: AbortCause = "Debug event"; break;\r
84 case 0x30: AbortCause = "TLB conflict abort"; break;\r
85 case 0x33:\r
86 case 0x34: AbortCause = "IMPLEMENTATION DEFINED"; break;\r
87 case 0x35:\r
88 case 0x36: AbortCause = "Domain fault"; break;\r
89 default: AbortCause = ""; break;\r
90 }\r
91\r
92 DEBUG ((EFI_D_ERROR, "\n%a: %a\n", AbortType, AbortCause));\r
93}\r
94\r
95STATIC\r
96VOID\r
97DescribeExceptionSyndrome (\r
98 IN UINT32 Esr\r
99 )\r
100{\r
101 CHAR8 *Message;\r
102 UINTN Ec;\r
103 UINTN Iss;\r
104\r
105 Ec = Esr >> 26;\r
106 Iss = Esr & 0x00ffffff;\r
107\r
108 switch (Ec) {\r
109 case 0x15: Message = "SVC executed in AArch64"; break;\r
110 case 0x20:\r
111 case 0x21: DescribeInstructionOrDataAbort ("Instruction abort", Iss); return;\r
112 case 0x22: Message = "PC alignment fault"; break;\r
113 case 0x23: Message = "SP alignment fault"; break;\r
114 case 0x24:\r
115 case 0x25: DescribeInstructionOrDataAbort ("Data abort", Iss); return;\r
116 default: return;\r
117 }\r
118\r
119 DEBUG ((EFI_D_ERROR, "\n %a \n", Message));\r
120}\r
121\r
1f8f4e33
AB		 122#ifndef MDEPKG_NDEBUG\r
123STATIC\r
124CONST CHAR8 *\r
125BaseName (\r
126 IN CONST CHAR8 *FullName\r
127 )\r
128{\r
129 CONST CHAR8 *Str;\r
130\r
131 Str = FullName + AsciiStrLen (FullName);\r
132\r
133 while (--Str > FullName) {\r
134 if (*Str == '/' || *Str == '\\') {\r
135 return Str + 1;\r
136 }\r
137 }\r
138 return Str;\r
139}\r
140#endif\r
141\r
25402f5d
HL		 142/**\r
143 This is the default action to take on an unexpected exception\r
144\r
145 Since this is exception context don't do anything crazy like try to allcoate memory.\r
146\r
147 @param ExceptionType Type of the exception\r
148 @param SystemContext Register state at the time of the Exception\r
149\r
150**/\r
151VOID\r
152DefaultExceptionHandler (\r
153 IN EFI_EXCEPTION_TYPE ExceptionType,\r
154 IN OUT EFI_SYSTEM_CONTEXT SystemContext\r
155 )\r
156{\r
157 CHAR8 Buffer[100];\r
158 UINTN CharCount;\r
cd82e330
AB		 159 INT32 Offset;\r
160\r
161 if (mRecursiveException) {\r
162 CharCount = AsciiSPrint (Buffer, sizeof (Buffer),"\nRecursive exception occurred while dumping the CPU state\n");\r
163 SerialPortWrite ((UINT8 *) Buffer, CharCount);\r
164 CpuDeadLoop ();\r
165 }\r
166 mRecursiveException = TRUE;\r
25402f5d 167\r
451b6658 168 CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"\n\n%a Exception at 0x%016lx\n", gExceptionTypeString[ExceptionType], SystemContext.SystemContextAArch64->ELR);\r
25402f5d
HL		 169 SerialPortWrite ((UINT8 *) Buffer, CharCount);\r
170\r
171 DEBUG_CODE_BEGIN ();\r
062f9fd2 172 CHAR8 *Pdb, *PrevPdb;\r
25402f5d
HL		 173 UINTN ImageBase;\r
174 UINTN PeCoffSizeOfHeader;\r
960d0de8 175 UINT64 *Fp;\r
062f9fd2
AB		 176 UINT64 RootFp[2];\r
177 UINTN Idx;\r
960d0de8 178\r
062f9fd2 179 PrevPdb = Pdb = GetImageName (SystemContext.SystemContextAArch64->ELR, &ImageBase, &PeCoffSizeOfHeader);\r
25402f5d 180 if (Pdb != NULL) {\r
062f9fd2
AB		 181 DEBUG ((EFI_D_ERROR, "PC 0x%012lx (0x%012lx+0x%08x) [ 0] %a\n",\r
182 SystemContext.SystemContextAArch64->ELR, ImageBase,\r
183 SystemContext.SystemContextAArch64->ELR - ImageBase, BaseName (Pdb)));\r
184\r
185 if ((UINT64 *)SystemContext.SystemContextAArch64->FP != 0) {\r
186 Idx = 0;\r
187\r
188 RootFp[0] = ((UINT64 *)SystemContext.SystemContextAArch64->FP)[0];\r
189 RootFp[1] = ((UINT64 *)SystemContext.SystemContextAArch64->FP)[1];\r
190 if (RootFp[1] != SystemContext.SystemContextAArch64->LR) {\r
191 RootFp[0] = SystemContext.SystemContextAArch64->FP;\r
192 RootFp[1] = SystemContext.SystemContextAArch64->LR;\r
193 }\r
194 for (Fp = RootFp; Fp[0] != 0; Fp = (UINT64 *)Fp[0]) {\r
195 Pdb = GetImageName (Fp[1], &ImageBase, &PeCoffSizeOfHeader);\r
196 if (Pdb != NULL) {\r
197 if (Pdb != PrevPdb) {\r
198 Idx++;\r
199 PrevPdb = Pdb;\r
200 }\r
201 DEBUG ((EFI_D_ERROR, "PC 0x%012lx (0x%012lx+0x%08x) [% 2d] %a\n",\r
202 Fp[1], ImageBase, Fp[1] - ImageBase, Idx, BaseName (Pdb)));\r
203 }\r
960d0de8 204 }\r
062f9fd2
AB		 205 PrevPdb = Pdb = GetImageName (SystemContext.SystemContextAArch64->ELR, &ImageBase, &PeCoffSizeOfHeader);\r
206 DEBUG ((EFI_D_ERROR, "\n[ 0] %a\n", Pdb));\r
207\r
208 Idx = 0;\r
209 for (Fp = RootFp; Fp[0] != 0; Fp = (UINT64 *)Fp[0]) {\r
210 Pdb = GetImageName (Fp[1], &ImageBase, &PeCoffSizeOfHeader);\r
211 if (Pdb != NULL && Pdb != PrevPdb) {\r
212 DEBUG ((EFI_D_ERROR, "[% 2d] %a\n", ++Idx, Pdb));\r
213 PrevPdb = Pdb;\r
214 }\r
960d0de8
AB		 215 }\r
216 }\r
25402f5d
HL		 217 }\r
218 DEBUG_CODE_END ();\r
219\r
220 DEBUG ((EFI_D_ERROR, "\n X0 0x%016lx X1 0x%016lx X2 0x%016lx X3 0x%016lx\n", SystemContext.SystemContextAArch64->X0, SystemContext.SystemContextAArch64->X1, SystemContext.SystemContextAArch64->X2, SystemContext.SystemContextAArch64->X3));\r
221 DEBUG ((EFI_D_ERROR, " X4 0x%016lx X5 0x%016lx X6 0x%016lx X7 0x%016lx\n", SystemContext.SystemContextAArch64->X4, SystemContext.SystemContextAArch64->X5, SystemContext.SystemContextAArch64->X6, SystemContext.SystemContextAArch64->X7));\r
222 DEBUG ((EFI_D_ERROR, " X8 0x%016lx X9 0x%016lx X10 0x%016lx X11 0x%016lx\n", SystemContext.SystemContextAArch64->X8, SystemContext.SystemContextAArch64->X9, SystemContext.SystemContextAArch64->X10, SystemContext.SystemContextAArch64->X11));\r
223 DEBUG ((EFI_D_ERROR, " X12 0x%016lx X13 0x%016lx X14 0x%016lx X15 0x%016lx\n", SystemContext.SystemContextAArch64->X12, SystemContext.SystemContextAArch64->X13, SystemContext.SystemContextAArch64->X14, SystemContext.SystemContextAArch64->X15));\r
224 DEBUG ((EFI_D_ERROR, " X16 0x%016lx X17 0x%016lx X18 0x%016lx X19 0x%016lx\n", SystemContext.SystemContextAArch64->X16, SystemContext.SystemContextAArch64->X17, SystemContext.SystemContextAArch64->X18, SystemContext.SystemContextAArch64->X19));\r
225 DEBUG ((EFI_D_ERROR, " X20 0x%016lx X21 0x%016lx X22 0x%016lx X23 0x%016lx\n", SystemContext.SystemContextAArch64->X20, SystemContext.SystemContextAArch64->X21, SystemContext.SystemContextAArch64->X22, SystemContext.SystemContextAArch64->X23));\r
226 DEBUG ((EFI_D_ERROR, " X24 0x%016lx X25 0x%016lx X26 0x%016lx X27 0x%016lx\n", SystemContext.SystemContextAArch64->X24, SystemContext.SystemContextAArch64->X25, SystemContext.SystemContextAArch64->X26, SystemContext.SystemContextAArch64->X27));\r
227 DEBUG ((EFI_D_ERROR, " X28 0x%016lx FP 0x%016lx LR 0x%016lx \n", SystemContext.SystemContextAArch64->X28, SystemContext.SystemContextAArch64->FP, SystemContext.SystemContextAArch64->LR));\r
228\r
229 /* We save these as 128bit numbers, but have to print them as two 64bit numbers,\r
230 so swap the 64bit words to correctly represent a 128bit number. */\r
231 DEBUG ((EFI_D_ERROR, "\n V0 0x%016lx %016lx V1 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V0[1], SystemContext.SystemContextAArch64->V0[0], SystemContext.SystemContextAArch64->V1[1], SystemContext.SystemContextAArch64->V1[0]));\r
232 DEBUG ((EFI_D_ERROR, " V2 0x%016lx %016lx V3 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V2[1], SystemContext.SystemContextAArch64->V2[0], SystemContext.SystemContextAArch64->V3[1], SystemContext.SystemContextAArch64->V3[0]));\r
233 DEBUG ((EFI_D_ERROR, " V4 0x%016lx %016lx V5 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V4[1], SystemContext.SystemContextAArch64->V4[0], SystemContext.SystemContextAArch64->V5[1], SystemContext.SystemContextAArch64->V5[0]));\r
234 DEBUG ((EFI_D_ERROR, " V6 0x%016lx %016lx V7 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V6[1], SystemContext.SystemContextAArch64->V6[0], SystemContext.SystemContextAArch64->V7[1], SystemContext.SystemContextAArch64->V7[0]));\r
235 DEBUG ((EFI_D_ERROR, " V8 0x%016lx %016lx V9 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V8[1], SystemContext.SystemContextAArch64->V8[0], SystemContext.SystemContextAArch64->V9[1], SystemContext.SystemContextAArch64->V9[0]));\r
236 DEBUG ((EFI_D_ERROR, " V10 0x%016lx %016lx V11 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V10[1], SystemContext.SystemContextAArch64->V10[0], SystemContext.SystemContextAArch64->V11[1], SystemContext.SystemContextAArch64->V11[0]));\r
237 DEBUG ((EFI_D_ERROR, " V12 0x%016lx %016lx V13 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V12[1], SystemContext.SystemContextAArch64->V12[0], SystemContext.SystemContextAArch64->V13[1], SystemContext.SystemContextAArch64->V13[0]));\r
238 DEBUG ((EFI_D_ERROR, " V14 0x%016lx %016lx V15 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V14[1], SystemContext.SystemContextAArch64->V14[0], SystemContext.SystemContextAArch64->V15[1], SystemContext.SystemContextAArch64->V15[0]));\r
239 DEBUG ((EFI_D_ERROR, " V16 0x%016lx %016lx V17 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V16[1], SystemContext.SystemContextAArch64->V16[0], SystemContext.SystemContextAArch64->V17[1], SystemContext.SystemContextAArch64->V17[0]));\r
240 DEBUG ((EFI_D_ERROR, " V18 0x%016lx %016lx V19 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V18[1], SystemContext.SystemContextAArch64->V18[0], SystemContext.SystemContextAArch64->V19[1], SystemContext.SystemContextAArch64->V19[0]));\r
241 DEBUG ((EFI_D_ERROR, " V20 0x%016lx %016lx V21 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V20[1], SystemContext.SystemContextAArch64->V20[0], SystemContext.SystemContextAArch64->V21[1], SystemContext.SystemContextAArch64->V21[0]));\r
242 DEBUG ((EFI_D_ERROR, " V22 0x%016lx %016lx V23 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V22[1], SystemContext.SystemContextAArch64->V22[0], SystemContext.SystemContextAArch64->V23[1], SystemContext.SystemContextAArch64->V23[0]));\r
243 DEBUG ((EFI_D_ERROR, " V24 0x%016lx %016lx V25 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V24[1], SystemContext.SystemContextAArch64->V24[0], SystemContext.SystemContextAArch64->V25[1], SystemContext.SystemContextAArch64->V25[0]));\r
244 DEBUG ((EFI_D_ERROR, " V26 0x%016lx %016lx V27 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V26[1], SystemContext.SystemContextAArch64->V26[0], SystemContext.SystemContextAArch64->V27[1], SystemContext.SystemContextAArch64->V27[0]));\r
245 DEBUG ((EFI_D_ERROR, " V28 0x%016lx %016lx V29 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V28[1], SystemContext.SystemContextAArch64->V28[0], SystemContext.SystemContextAArch64->V29[1], SystemContext.SystemContextAArch64->V29[0]));\r
246 DEBUG ((EFI_D_ERROR, " V30 0x%016lx %016lx V31 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V30[1], SystemContext.SystemContextAArch64->V30[0], SystemContext.SystemContextAArch64->V31[1], SystemContext.SystemContextAArch64->V31[0]));\r
247\r
248 DEBUG ((EFI_D_ERROR, "\n SP 0x%016lx ELR 0x%016lx SPSR 0x%08lx FPSR 0x%08lx\n ESR 0x%08lx FAR 0x%016lx\n", SystemContext.SystemContextAArch64->SP, SystemContext.SystemContextAArch64->ELR, SystemContext.SystemContextAArch64->SPSR, SystemContext.SystemContextAArch64->FPSR, SystemContext.SystemContextAArch64->ESR, SystemContext.SystemContextAArch64->FAR));\r
249\r
250 DEBUG ((EFI_D_ERROR, "\n ESR : EC 0x%02x IL 0x%x ISS 0x%08x\n", (SystemContext.SystemContextAArch64->ESR & 0xFC000000) >> 26, (SystemContext.SystemContextAArch64->ESR >> 25) & 0x1, SystemContext.SystemContextAArch64->ESR & 0x1FFFFFF ));\r
251\r
451b6658 252 DescribeExceptionSyndrome (SystemContext.SystemContextAArch64->ESR);\r
1549fb60 253\r
cd82e330
AB		 254 DEBUG ((EFI_D_ERROR, "\nStack dump:\n"));\r
255 for (Offset = -256; Offset < 256; Offset += 32) {\r
256 DEBUG ((EFI_D_ERROR, "%c %013lx: %016lx %016lx %016lx %016lx\n",\r
257 Offset == 0 ? '>' : ' ',\r
258 SystemContext.SystemContextAArch64->SP + Offset,\r
259 *(UINT64 *)(SystemContext.SystemContextAArch64->SP + Offset),\r
260 *(UINT64 *)(SystemContext.SystemContextAArch64->SP + Offset + 8),\r
261 *(UINT64 *)(SystemContext.SystemContextAArch64->SP + Offset + 16),\r
262 *(UINT64 *)(SystemContext.SystemContextAArch64->SP + Offset + 24)));\r
263 }\r
264\r
f9ebccec 265 ASSERT (FALSE);\r
1549fb60 266 CpuDeadLoop ();\r
25402f5d 267}\r
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