ArmPkg/Library/DefaultExceptionHandlerLib/AArch64/DefaultExceptionHandler.c

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