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UefiCpuPkg/CpuExceptionHandlerLib: Add DumpCpuContext() implementation

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Export DumpCpuCotext() to display CPU Context. We will invoke
PeCoffGetEntrypointLib's PeCoffSerachImageBase() to get PE/COFF image base.
Display exception data bit value for page fault exception.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
This commit is contained in:
Jeff Fan
2017-04-01 14:16:41 +08:00
parent e2884d2cd0
commit 1b2f7b3e49
9 changed files with 132 additions and 147 deletions
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84
UefiCpuPkg/Library/CpuExceptionHandlerLib/CpuExceptionCommon.c
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@ -106,82 +106,44 @@ InternalPrintMessage (
/**
Find and display image base address and return image base and its entry point.
@param CurrentEip Current instruction pointer.
@param EntryPoint Return module entry point if module header is found.
@return !0 Image base address.
@return 0 Image header cannot be found.
**/
UINTN
FindModuleImageBase (
IN UINTN CurrentEip,
OUT UINTN *EntryPoint
VOID
DumpModuleImageInfo (
IN UINTN CurrentEip
)
{
EFI_STATUS Status;
UINTN Pe32Data;
EFI_IMAGE_DOS_HEADER *DosHdr;
EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;
VOID *PdbPointer;
VOID *EntryPoint;
//
// Find Image Base
//
Pe32Data = CurrentEip & ~(mImageAlignSize - 1);
while (Pe32Data != 0) {
DosHdr = (EFI_IMAGE_DOS_HEADER *) Pe32Data;
if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {
//
// DOS image header is present, so read the PE header after the DOS image header.
//
Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)(Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));
//
// Make sure PE header address does not overflow and is less than the initial address.
//
if (((UINTN)Hdr.Pe32 > Pe32Data) && ((UINTN)Hdr.Pe32 < CurrentEip)) {
if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {
//
// It's PE image.
//
InternalPrintMessage ("!!!! Find PE image ");
*EntryPoint = (UINTN)Pe32Data + (UINTN)(Hdr.Pe32->OptionalHeader.AddressOfEntryPoint & 0x0ffffffff);
break;
}
}
} else {
//
// DOS image header is not present, TE header is at the image base.
//
Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;
if ((Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) &&
((Hdr.Te->Machine == IMAGE_FILE_MACHINE_I386) || Hdr.Te->Machine == IMAGE_FILE_MACHINE_X64)) {
//
// It's TE image, it TE header and Machine type match
//
InternalPrintMessage ("!!!! Find TE image ");
*EntryPoint = (UINTN)Pe32Data + (UINTN)(Hdr.Te->AddressOfEntryPoint & 0x0ffffffff) + sizeof(EFI_TE_IMAGE_HEADER) - Hdr.Te->StrippedSize;
break;
}
Pe32Data = PeCoffSerachImageBase (CurrentEip);
if (Pe32Data == 0) {
InternalPrintMessage ("!!!! Can't find image information. !!!!\n");
} else {
//
// Find Image Base entry point
//
Status = PeCoffLoaderGetEntryPoint ((VOID *) Pe32Data, &EntryPoint);
if (EFI_ERROR (Status)) {
EntryPoint = NULL;
}
//
// Not found the image base, check the previous aligned address
//
Pe32Data -= mImageAlignSize;
}
if (Pe32Data != 0) {
InternalPrintMessage ("!!!! Find image ");
PdbPointer = PeCoffLoaderGetPdbPointer ((VOID *) Pe32Data);
if (PdbPointer != NULL) {
InternalPrintMessage ("%a", PdbPointer);
} else {
InternalPrintMessage ("(No PDB) " );
}
} else {
InternalPrintMessage ("!!!! Can't find image information. !!!!\n");
InternalPrintMessage (
" (ImageBase=%016lp, EntryPoint=%016p) !!!!\n",
(VOID *) Pe32Data,
EntryPoint
);
}
return Pe32Data;
}
/**