**/\r
\r
#include "CpuDxe.h" \r
-#include <Library/CacheMaintenanceLib.h>\r
+\r
+EFI_DEBUG_IMAGE_INFO_TABLE_HEADER *gDebugImageTableHeader = NULL;\r
\r
VOID\r
ExceptionHandlersStart (\r
\r
\r
\r
+\r
+CHAR8 *\r
+GetImageName (\r
+ IN UINT32 FaultAddress,\r
+ OUT UINT32 *ImageBase,\r
+ OUT UINT32 *PeCoffSizeOfHeaders\r
+ )\r
+{\r
+ EFI_DEBUG_IMAGE_INFO *DebugTable;\r
+ UINTN Entry;\r
+ CHAR8 *Address;\r
+\r
+ \r
+ DebugTable = gDebugImageTableHeader->EfiDebugImageInfoTable;\r
+ if (DebugTable == NULL) {\r
+ return NULL;\r
+ }\r
+\r
+ Address = (CHAR8 *)(UINTN)FaultAddress;\r
+ for (Entry = 0; Entry < gDebugImageTableHeader->TableSize; Entry++, DebugTable++) {\r
+ if (DebugTable->NormalImage != NULL) {\r
+ if ((DebugTable->NormalImage->ImageInfoType == EFI_DEBUG_IMAGE_INFO_TYPE_NORMAL) && \r
+ (DebugTable->NormalImage->LoadedImageProtocolInstance != NULL)) {\r
+ if ((Address >= (CHAR8 *)DebugTable->NormalImage->LoadedImageProtocolInstance->ImageBase) &&\r
+ (Address <= ((CHAR8 *)DebugTable->NormalImage->LoadedImageProtocolInstance->ImageBase + DebugTable->NormalImage->LoadedImageProtocolInstance->ImageSize))) {\r
+ *ImageBase = (UINT32)DebugTable->NormalImage->LoadedImageProtocolInstance->ImageBase;\r
+ *PeCoffSizeOfHeaders = PeCoffGetSizeOfHeaders ((VOID *)(UINTN)*ImageBase);\r
+ return PeCoffLoaderGetPdbPointer (DebugTable->NormalImage->LoadedImageProtocolInstance->ImageBase);\r
+ } \r
+ }\r
+ } \r
+ }\r
+\r
+ return NULL;\r
+}\r
+\r
+typedef struct {\r
+ UINT32 Bit;\r
+ CHAR8 Char;\r
+} CPSR_CHAR;\r
+\r
+\r
+VOID\r
+CpsrString (\r
+ IN UINT32 Cpsr,\r
+ OUT CHAR8 *ReturnStr\r
+ )\r
+{\r
+ UINTN Index;\r
+ CHAR8 *Str = ReturnStr;\r
+ CHAR8 *ModeStr;\r
+ CPSR_CHAR CpsrChar[] = {\r
+ { 31, 'n' },\r
+ { 30, 'z' },\r
+ { 29, 'c' },\r
+ { 28, 'v' },\r
+\r
+ { 9, 'e' },\r
+ { 8, 'a' },\r
+ { 7, 'i' },\r
+ { 6, 'f' },\r
+ { 5, 't' },\r
+ { 0, '?' }\r
+ };\r
+ \r
+ for (Index = 0; CpsrChar[Index].Bit != 0; Index++, Str++) {\r
+ *Str = CpsrChar[Index].Char;\r
+ if ((Cpsr & (1 << CpsrChar[Index].Bit)) != 0) {\r
+ // Concert to upper case if bit is set\r
+ *Str &= ~0x20;\r
+ }\r
+ }\r
+ \r
+ *Str++ = '_';\r
+ *Str = '\0';\r
+ \r
+ switch (Cpsr & 0x1f) {\r
+ case 0x17:\r
+ ModeStr = "abt";\r
+ break;\r
+ case 0x011:\r
+ ModeStr = "fiq";\r
+ break;\r
+ case 0x12:\r
+ ModeStr = "irq";\r
+ break;\r
+ case 0x13:\r
+ ModeStr = "svc";\r
+ break;\r
+ case 0x1f:\r
+ ModeStr = "sys";\r
+ break;\r
+ case 0x1b:\r
+ ModeStr = "und";\r
+ break;\r
+ case 0x10:\r
+ ModeStr = "usr";\r
+ break;\r
+ \r
+ default:\r
+ ModeStr = "???";\r
+ break;\r
+ }\r
+ \r
+ AsciiStrCat (Str, ModeStr);\r
+ return;\r
+} \r
+ \r
+CHAR8 *gExceptionTypeString[] = {\r
+ "Reset",\r
+ "Undefined Instruction",\r
+ "SWI",\r
+ "Prefetch Abort",\r
+ "Data Abort",\r
+ "Undefined",\r
+ "IRQ",\r
+ "FIQ"\r
+};\r
+\r
VOID\r
EFIAPI\r
CommonCExceptionHandler (\r
)\r
{\r
BOOLEAN Dispatched = FALSE;\r
- \r
+ \r
+ \r
if (ExceptionType <= MAX_ARM_EXCEPTION) {\r
if (gDebuggerExceptionHandlers[ExceptionType]) {\r
//\r
gExceptionHandlers[ExceptionType] (ExceptionType, SystemContext);\r
Dispatched = TRUE;\r
}\r
+ } else {\r
+ DEBUG ((EFI_D_ERROR, "Unknown exception type %d from %08x\n", ExceptionType, SystemContext.SystemContextArm->PC));\r
+ ASSERT (FALSE);\r
}\r
\r
if (Dispatched) {\r
}\r
\r
//\r
- // Code after here is the default exception handler...\r
+ // Code after here is the default exception handler... Dump the context\r
//\r
- DEBUG ((EFI_D_ERROR, "Exception %d from %08x\n", ExceptionType, SystemContext.SystemContextArm->PC));\r
- ASSERT (FALSE);\r
+ DEBUG ((EFI_D_ERROR, "\n%a Exception PC at 0x%08x CPSR 0x%08x ", gExceptionTypeString[ExceptionType], SystemContext.SystemContextArm->PC, SystemContext.SystemContextArm->CPSR));\r
+ DEBUG_CODE_BEGIN ();\r
+ CHAR8 *Pdb;\r
+ UINT32 ImageBase;\r
+ UINT32 PeCoffSizeOfHeader;\r
+ UINT32 Offset;\r
+ CHAR8 CpsrStr[32]; // char per bit. Lower 5-bits are mode that is a 3 char string\r
+ \r
+ CpsrString (SystemContext.SystemContextArm->CPSR, CpsrStr);\r
+ DEBUG ((EFI_D_ERROR, "%a\n", CpsrStr));\r
+ \r
+ Pdb = GetImageName (SystemContext.SystemContextArm->PC, &ImageBase, &PeCoffSizeOfHeader);\r
+ Offset = SystemContext.SystemContextArm->PC - ImageBase;\r
+ if (Pdb != NULL) {\r
+ DEBUG ((EFI_D_ERROR, "%a\n", Pdb));\r
+\r
+ //\r
+ // A PE/COFF image loads its headers into memory so the headers are \r
+ // included in the linked addressess. ELF and Mach-O images do not\r
+ // include the headers so the first byte of the image is usually\r
+ // text (code). If you look at link maps from ELF or Mach-O images\r
+ // you need to subtact out the size of the PE/COFF header to get\r
+ // get the offset that matches the link map. \r
+ //\r
+ DEBUG ((EFI_D_ERROR, "loadded at 0x%08x (PE/COFF offset) 0x%x (ELF or Mach-O offset) 0x%x", ImageBase, Offset, Offset - PeCoffSizeOfHeader));\r
+ }\r
+ DEBUG_CODE_END ();\r
+ DEBUG ((EFI_D_ERROR, "\n R0 0x%08x R1 0x%08x R2 0x%08x R3 0x%08x\n", SystemContext.SystemContextArm->R0, SystemContext.SystemContextArm->R1, SystemContext.SystemContextArm->R2, SystemContext.SystemContextArm->R3));\r
+ DEBUG ((EFI_D_ERROR, " R4 0x%08x R5 0x%08x R6 0x%08x R7 0x%08x\n", SystemContext.SystemContextArm->R4, SystemContext.SystemContextArm->R5, SystemContext.SystemContextArm->R6, SystemContext.SystemContextArm->R7));\r
+ DEBUG ((EFI_D_ERROR, " R8 0x%08x R9 0x%08x R10 0x%08x R11 0x%08x\n", SystemContext.SystemContextArm->R8, SystemContext.SystemContextArm->R9, SystemContext.SystemContextArm->R10, SystemContext.SystemContextArm->R11));\r
+ DEBUG ((EFI_D_ERROR, " R12 0x%08x SP 0x%08x LR 0x%08x PC 0x%08x\n", SystemContext.SystemContextArm->R12, SystemContext.SystemContextArm->SP, SystemContext.SystemContextArm->LR, SystemContext.SystemContextArm->PC));\r
+ DEBUG ((EFI_D_ERROR, "DFSR 0x%08x DFAR 0x%08x IFSR 0x%08x IFAR 0x%08x\n\n", SystemContext.SystemContextArm->DFSR, SystemContext.SystemContextArm->DFAR, SystemContext.SystemContextArm->IFSR, SystemContext.SystemContextArm->IFAR));\r
\r
+ ASSERT (FALSE);\r
}\r
\r
\r
BOOLEAN Enabled;\r
EFI_PHYSICAL_ADDRESS Base;\r
\r
+ Status = EfiGetSystemConfigurationTable (&gEfiDebugImageInfoTableGuid, (VOID **)&gDebugImageTableHeader);\r
+ if (EFI_ERROR (Status)) {\r
+ gDebugImageTableHeader = NULL;\r
+ }\r
+\r
//\r
// Disable interrupts\r
//\r
}\r
\r
//\r
- // Copy an implementation of the ARM exception vectors to 0x0.\r
+ // Copy an implementation of the ARM exception vectors to PcdCpuVectorBaseAddress.\r
//\r
Length = (UINTN)ExceptionHandlersEnd - (UINTN)ExceptionHandlersStart;\r
\r
// on embedded systems, for example, we don't want to hang up. So we'll check here for a status of \r
// EFI_NOT_FOUND, and continue in that case.\r
if (EFI_ERROR(Status) && (Status != EFI_NOT_FOUND)) {\r
- ASSERT_EFI_ERROR (Status);\r
+ ASSERT_EFI_ERROR (Status);\r
}\r
\r
CopyMem ((VOID *)(UINTN)PcdGet32 (PcdCpuVectorBaseAddress), (VOID *)ExceptionHandlersStart, Length);\r
*(UINTN *) ((UINT8 *)(UINTN)PcdGet32 (PcdCpuVectorBaseAddress) + Offset) = (UINTN)AsmCommonExceptionEntry;\r
\r
// Flush Caches since we updated executable stuff\r
- InvalidateInstructionCacheRange((VOID *)PcdGet32(PcdCpuVectorBaseAddress), Length);\r
+ InvalidateInstructionCacheRange ((VOID *)PcdGet32(PcdCpuVectorBaseAddress), Length);\r
\r
if (Enabled) {\r
// \r
projects / mirror_edk2.git / blobdiff