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ArmPkg/CpuDxe/ArmV6: Return error status when ExceptionHandlersStart is not 32-byte aligned 

The function should detect and return the error in non-debug builds when the ASSERT does nothing.

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@15606 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Olivier Martin 2014-07-01 09:24:07 +00:00 committed by oliviermartin
parent e4ac870fe9
commit 6defc4db4c
1 changed files with 6 additions and 2 deletions
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8
ArmPkg/Drivers/CpuDxe/ArmV6/Exception.c
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@ -1,6 +1,7 @@
/** @file
Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
Copyright (c) 2014, ARM Limited. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@ -207,9 +208,12 @@ InitializeExceptions (
//Note: On ARM processor with the Security Extension, the Vector Table can be located anywhere in the memory.
// The Vector Base Address Register defines the location
ArmWriteVBar (PcdGet32(PcdCpuVectorBaseAddress));
} else {
} else {
// The Vector table must be 32-byte aligned
ASSERT(((UINT32)ExceptionHandlersStart & ARM_VECTOR_TABLE_ALIGNMENT) == 0);
if (((UINT32)ExceptionHandlersStart & ARM_VECTOR_TABLE_ALIGNMENT) != 0) {
ASSERT (0);
return EFI_INVALID_PARAMETER;
}
// We do not copy the Exception Table at PcdGet32(PcdCpuVectorBaseAddress). We just set Vector Base Address to point into CpuDxe code.
ArmWriteVBar ((UINT32)ExceptionHandlersStart);