82ea9a6b59
Modify the DefaultExceptionHandler (uefi-variant) so it can be used by DxeCore (via CpuExceptionHandlerLib) where the debug info table is not yet published at library constructor time. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Eugene Cohen <eugene@hp.com> Tested-by: Ryan Harkin <ryan.harkin@linaro.org> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
76 lines
2.9 KiB
C
76 lines
2.9 KiB
C
/** @file
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Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Uefi.h>
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#include <Library/PeCoffGetEntryPointLib.h>
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#include <Library/UefiLib.h>
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#include <Guid/DebugImageInfoTable.h>
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/**
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Use the EFI Debug Image Table to lookup the FaultAddress and find which PE/COFF image
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it came from. As long as the PE/COFF image contains a debug directory entry a
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string can be returned. For ELF and Mach-O images the string points to the Mach-O or ELF
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image. Microsoft tools contain a pointer to the PDB file that contains the debug information.
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@param FaultAddress Address to find PE/COFF image for.
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@param ImageBase Return load address of found image
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@param PeCoffSizeOfHeaders Return the size of the PE/COFF header for the image that was found
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@retval NULL FaultAddress not in a loaded PE/COFF image.
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@retval Path and file name of PE/COFF image.
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**/
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CHAR8 *
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GetImageName (
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IN UINTN FaultAddress,
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OUT UINTN *ImageBase,
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OUT UINTN *PeCoffSizeOfHeaders
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)
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{
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EFI_STATUS Status;
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EFI_DEBUG_IMAGE_INFO_TABLE_HEADER *DebugTableHeader;
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EFI_DEBUG_IMAGE_INFO *DebugTable;
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UINTN Entry;
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CHAR8 *Address;
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Status = EfiGetSystemConfigurationTable (&gEfiDebugImageInfoTableGuid, (VOID **)&DebugTableHeader);
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if (EFI_ERROR (Status)) {
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return NULL;
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}
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DebugTable = DebugTableHeader->EfiDebugImageInfoTable;
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if (DebugTable == NULL) {
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return NULL;
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}
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Address = (CHAR8 *)(UINTN)FaultAddress;
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for (Entry = 0; Entry < DebugTableHeader->TableSize; Entry++, DebugTable++) {
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if (DebugTable->NormalImage != NULL) {
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if ((DebugTable->NormalImage->ImageInfoType == EFI_DEBUG_IMAGE_INFO_TYPE_NORMAL) &&
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(DebugTable->NormalImage->LoadedImageProtocolInstance != NULL)) {
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if ((Address >= (CHAR8 *)DebugTable->NormalImage->LoadedImageProtocolInstance->ImageBase) &&
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(Address <= ((CHAR8 *)DebugTable->NormalImage->LoadedImageProtocolInstance->ImageBase + DebugTable->NormalImage->LoadedImageProtocolInstance->ImageSize))) {
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*ImageBase = (UINTN)DebugTable->NormalImage->LoadedImageProtocolInstance->ImageBase;
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*PeCoffSizeOfHeaders = PeCoffGetSizeOfHeaders ((VOID *)(UINTN)*ImageBase);
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return PeCoffLoaderGetPdbPointer (DebugTable->NormalImage->LoadedImageProtocolInstance->ImageBase);
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}
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}
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}
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}
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return NULL;
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}
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