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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
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83
ArmPkg/Library/DefaultExceptionHandlerLib/AArch64/DefaultExceptionHandler.c
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@ -2,7 +2,7 @@
Default exception handler Default exception handler
Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR> 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 This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License are licensed and made available under the terms and conditions of the BSD License
@ -43,6 +43,82 @@ GetImageName (
OUT UINTN *PeCoffSizeOfHeaders 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 This is the default action to take on an unexpected exception
@ -61,7 +137,7 @@ DefaultExceptionHandler (
CHAR8 Buffer[100]; CHAR8 Buffer[100];
UINTN CharCount; 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); SerialPortWrite ((UINT8 *) Buffer, CharCount);
DEBUG_CODE_BEGIN (); 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 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); ASSERT (FALSE);
} }