tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

ArmPkg/DefaultExceptionHandlerLib/Aarch64: Added friendly debug message 

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15549 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Olivier Martin 2014-06-03 16:34:17 +00:00 committed by oliviermartin
parent f747c71e30
commit 451b665890
1 changed files with 79 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

83
ArmPkg/Library/DefaultExceptionHandlerLib/AArch64/DefaultExceptionHandler.c
View File

@ -2,7 +2,7 @@
Default exception handler
Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
Copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
Copyright (c) 2011 - 2014, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@ -43,6 +43,82 @@ GetImageName (
OUT UINTN *PeCoffSizeOfHeaders
);
STATIC
VOID
DescribeInstructionOrDataAbort (
IN CHAR8 *AbortType,
IN UINTN Iss
)
{
CHAR8 *AbortCause;
switch (Iss & 0x3f) {
case 0x0: AbortCause = "Address size fault, zeroth level of translation or translation table base register"; break;
case 0x1: AbortCause = "Address size fault, first level"; break;
case 0x2: AbortCause = "Address size fault, second level"; break;
case 0x3: AbortCause = "Address size fault, third level"; break;
case 0x4: AbortCause = "Translation fault, zeroth level"; break;
case 0x5: AbortCause = "Translation fault, first level"; break;
case 0x6: AbortCause = "Translation fault, second level"; break;
case 0x7: AbortCause = "Translation fault, third level"; break;
case 0x9: AbortCause = "Access flag fault, first level"; break;
case 0xa: AbortCause = "Access flag fault, second level"; break;
case 0xb: AbortCause = "Access flag fault, third level"; break;
case 0xd: AbortCause = "Permission fault, first level"; break;
case 0xe: AbortCause = "Permission fault, second level"; break;
case 0xf: AbortCause = "Permission fault, third level"; break;
case 0x10: AbortCause = "Synchronous external abort"; break;
case 0x18: AbortCause = "Synchronous parity error on memory access"; break;
case 0x11: AbortCause = "Asynchronous external abort"; break;
case 0x19: AbortCause = "Asynchronous parity error on memory access"; break;
case 0x14: AbortCause = "Synchronous external abort on translation table walk, zeroth level"; break;
case 0x15: AbortCause = "Synchronous external abort on translation table walk, first level"; break;
case 0x16: AbortCause = "Synchronous external abort on translation table walk, second level"; break;
case 0x17: AbortCause = "Synchronous external abort on translation table walk, third level"; break;
case 0x1c: AbortCause = "Synchronous parity error on memory access on translation table walk, zeroth level"; break;
case 0x1d: AbortCause = "Synchronous parity error on memory access on translation table walk, first level"; break;
case 0x1e: AbortCause = "Synchronous parity error on memory access on translation table walk, second level"; break;
case 0x1f: AbortCause = "Synchronous parity error on memory access on translation table walk, third level"; break;
case 0x21: AbortCause = "Alignment fault"; break;
case 0x22: AbortCause = "Debug event"; break;
case 0x30: AbortCause = "TLB conflict abort"; break;
case 0x33:
case 0x34: AbortCause = "IMPLEMENTATION DEFINED"; break;
case 0x35:
case 0x36: AbortCause = "Domain fault"; break;
default: AbortCause = ""; break;
}
DEBUG ((EFI_D_ERROR, "\n%a: %a\n", AbortType, AbortCause));
}
STATIC
VOID
DescribeExceptionSyndrome (
IN UINT32 Esr
)
{
CHAR8 *Message;
UINTN Ec;
UINTN Iss;
Ec = Esr >> 26;
Iss = Esr & 0x00ffffff;
switch (Ec) {
case 0x15: Message = "SVC executed in AArch64"; break;
case 0x20:
case 0x21: DescribeInstructionOrDataAbort ("Instruction abort", Iss); return;
case 0x22: Message = "PC alignment fault"; break;
case 0x23: Message = "SP alignment fault"; break;
case 0x24:
case 0x25: DescribeInstructionOrDataAbort ("Data abort", Iss); return;
default: return;
}
DEBUG ((EFI_D_ERROR, "\n %a \n", Message));
}
/**
This is the default action to take on an unexpected exception
@ -61,7 +137,7 @@ DefaultExceptionHandler (
CHAR8 Buffer[100];
UINTN CharCount;
CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"\n\n%a Exception: \n", gExceptionTypeString[ExceptionType]);
CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"\n\n%a Exception at 0x%016lx\n", gExceptionTypeString[ExceptionType], SystemContext.SystemContextAArch64->ELR);
SerialPortWrite ((UINT8 *) Buffer, CharCount);
DEBUG_CODE_BEGIN ();
@ -106,7 +182,6 @@ DefaultExceptionHandler (
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 ));
DEBUG ((EFI_D_ERROR, "\n"));
DescribeExceptionSyndrome (SystemContext.SystemContextAArch64->ESR);
ASSERT (FALSE);
}