X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdePkg%2FLibrary%2FBasePeCoffGetEntryPointLib%2FPeCoffGetEntryPoint.c;h=e1ddc8bafa4124822c123efc282ecf674f96a0b9;hp=d0a6746e50969a0371901a1c6c45ba97159d5b6d;hb=9e981317be20ab85bb68a670e79735f9685a3348;hpb=0d49d8f681f213415c8e756b488692c83bcab62f
diff --git a/MdePkg/Library/BasePeCoffGetEntryPointLib/PeCoffGetEntryPoint.c b/MdePkg/Library/BasePeCoffGetEntryPointLib/PeCoffGetEntryPoint.c
index d0a6746e50..e1ddc8bafa 100644
--- a/MdePkg/Library/BasePeCoffGetEntryPointLib/PeCoffGetEntryPoint.c
+++ b/MdePkg/Library/BasePeCoffGetEntryPointLib/PeCoffGetEntryPoint.c
@@ -1,20 +1,28 @@
/** @file
- Tiano PE/COFF loader.
+ Provides the services to get the entry point to a PE/COFF image that has either been
+ loaded into memory or is executing at it's linked address.
- Copyright (c) 2006 - 2007, Intel Corporation
- All rights reserved. This program and the accompanying materials
+ Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.
+ Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.
+ This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php
+ http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
- Module Name: PeCoffGetEntryPoint.c
-
**/
+#include
+
+#include
+#include
+
+#include
+
+#define PE_COFF_IMAGE_ALIGN_SIZE 4
/**
Retrieves and returns a pointer to the entry point to a PE/COFF image that has been loaded
@@ -26,8 +34,8 @@
If Pe32Data is NULL, then ASSERT().
If EntryPoint is NULL, then ASSERT().
- @param Pe32Data Pointer to the PE/COFF image that is loaded in system memory.
- @param EntryPoint Pointer to entry point to the PE/COFF image to return.
+ @param Pe32Data The pointer to the PE/COFF image that is loaded in system memory.
+ @param EntryPoint The pointer to entry point to the PE/COFF image to return.
@retval RETURN_SUCCESS EntryPoint was returned.
@retval RETURN_INVALID_PARAMETER The entry point could not be found in the PE/COFF image.
@@ -40,31 +48,38 @@ PeCoffLoaderGetEntryPoint (
OUT VOID **EntryPoint
)
{
- EFI_IMAGE_DOS_HEADER *DosHeader;
- EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Header;
+ EFI_IMAGE_DOS_HEADER *DosHdr;
+ EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;
ASSERT (Pe32Data != NULL);
ASSERT (EntryPoint != NULL);
- DosHeader = (EFI_IMAGE_DOS_HEADER *)Pe32Data;
- if (DosHeader->e_magic == EFI_IMAGE_DOS_SIGNATURE) {
+ 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.
//
- Header.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHeader->e_lfanew) & 0x0ffff));
+ Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));
} else {
//
// DOS image header is not present, so PE header is at the image base.
//
- Header.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;
+ Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;
}
//
- // Calculate the entry point relative to the start of the image.
+ // Calculate the entry point relative to the start of the image.
// AddressOfEntryPoint is common for PE32 & PE32+
//
- *EntryPoint = (VOID *)((UINTN)Pe32Data + (UINTN)(Header.Pe32->OptionalHeader.AddressOfEntryPoint & 0x0ffffffff));
- return RETURN_SUCCESS;
+ if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {
+ *EntryPoint = (VOID *)((UINTN)Pe32Data + (UINTN)(Hdr.Te->AddressOfEntryPoint & 0x0ffffffff) + sizeof(EFI_TE_IMAGE_HEADER) - Hdr.Te->StrippedSize);
+ return RETURN_SUCCESS;
+ } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {
+ *EntryPoint = (VOID *)((UINTN)Pe32Data + (UINTN)(Hdr.Pe32->OptionalHeader.AddressOfEntryPoint & 0x0ffffffff));
+ return RETURN_SUCCESS;
+ }
+
+ return RETURN_UNSUPPORTED;
}
@@ -74,10 +89,10 @@ PeCoffLoaderGetEntryPoint (
Returns the machine type from the PE/COFF image specified by Pe32Data.
If Pe32Data is NULL, then ASSERT().
- @param Pe32Data Pointer to the PE/COFF image that is loaded in system
+ @param Pe32Data The pointer to the PE/COFF image that is loaded in system
memory.
- @return Machine type or zero if not a valid iamge.
+ @return Machine type or zero if not a valid image.
**/
UINT16
@@ -89,14 +104,24 @@ PeCoffLoaderGetMachineType (
EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;
EFI_IMAGE_DOS_HEADER *DosHdr;
- DosHdr = (EFI_IMAGE_DOS_HEADER *)Pe32Data;
+ ASSERT (Pe32Data != NULL);
+
+ DosHdr = (EFI_IMAGE_DOS_HEADER *)Pe32Data;
if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {
- Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN)Pe32Data + DosHdr->e_lfanew);
+ //
+ // DOS image header is present, so read the PE header after the DOS image header.
+ //
+ Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));
} else {
- Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN)Pe32Data);
+ //
+ // DOS image header is not present, so PE header is at the image base.
+ //
+ Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;
}
- if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {
+ if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {
+ return Hdr.Te->Machine;
+ } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {
return Hdr.Pe32->FileHeader.Machine;
}
@@ -115,7 +140,7 @@ PeCoffLoaderGetMachineType (
then NULL is returned.
If Pe32Data is NULL, then ASSERT().
- @param Pe32Data Pointer to the PE/COFF image that is loaded in system
+ @param Pe32Data The pointer to the PE/COFF image that is loaded in system
memory.
@return The PDB file name for the PE/COFF image specified by Pe32Data or NULL
@@ -128,7 +153,7 @@ PeCoffLoaderGetPdbPointer (
IN VOID *Pe32Data
)
{
- EFI_IMAGE_DOS_HEADER *DosHeader;
+ EFI_IMAGE_DOS_HEADER *DosHdr;
EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;
EFI_IMAGE_DATA_DIRECTORY *DirectoryEntry;
EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *DebugEntry;
@@ -136,7 +161,8 @@ PeCoffLoaderGetPdbPointer (
VOID *CodeViewEntryPointer;
INTN TEImageAdjust;
UINT32 NumberOfRvaAndSizes;
-
+ UINT16 Magic;
+
ASSERT (Pe32Data != NULL);
TEImageAdjust = 0;
@@ -144,12 +170,12 @@ PeCoffLoaderGetPdbPointer (
DebugEntry = NULL;
NumberOfRvaAndSizes = 0;
- DosHeader = (EFI_IMAGE_DOS_HEADER *)Pe32Data;
- if (DosHeader->e_magic == EFI_IMAGE_DOS_SIGNATURE) {
+ 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 *)((UINTN) Pe32Data + (UINTN) ((DosHeader->e_lfanew) & 0x0ffff));
+ Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));
} else {
//
// DOS image header is not present, so PE header is at the image base.
@@ -166,15 +192,41 @@ PeCoffLoaderGetPdbPointer (
TEImageAdjust);
}
} else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {
- if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {
- //
+ //
+ // NOTE: We use Machine field to identify PE32/PE32+, instead of Magic.
+ // It is due to backward-compatibility, for some system might
+ // generate PE32+ image with PE32 Magic.
+ //
+ switch (Hdr.Pe32->FileHeader.Machine) {
+ case IMAGE_FILE_MACHINE_I386:
+ //
+ // Assume PE32 image with IA32 Machine field.
+ //
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;
+ break;
+ case IMAGE_FILE_MACHINE_X64:
+ case IMAGE_FILE_MACHINE_IA64:
+ //
+ // Assume PE32+ image with x64 or IA64 Machine field
+ //
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
+ break;
+ default:
+ //
+ // For unknow Machine field, use Magic in optional Header
+ //
+ Magic = Hdr.Pe32->OptionalHeader.Magic;
+ }
+
+ if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {
+ //
// Use PE32 offset get Debug Directory Entry
//
NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;
DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);
DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *) ((UINTN) Pe32Data + DirectoryEntry->VirtualAddress);
} else if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {
- //
+ //
// Use PE32+ offset get Debug Directory Entry
//
NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;
@@ -194,7 +246,10 @@ PeCoffLoaderGetPdbPointer (
return NULL;
}
- for (DirCount = 0; DirCount < DirectoryEntry->Size; DirCount++, DebugEntry++) {
+ //
+ // Scan the directory to find the debug entry.
+ //
+ for (DirCount = 0; DirCount < DirectoryEntry->Size; DirCount += sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY), DebugEntry++) {
if (DebugEntry->Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {
if (DebugEntry->SizeOfData > 0) {
CodeViewEntryPointer = (VOID *) ((UINTN) DebugEntry->RVA + ((UINTN)Pe32Data) + (UINTN)TEImageAdjust);
@@ -203,6 +258,8 @@ PeCoffLoaderGetPdbPointer (
return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY));
case CODEVIEW_SIGNATURE_RSDS:
return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY));
+ case CODEVIEW_SIGNATURE_MTOC:
+ return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_MTOC_ENTRY));
default:
break;
}
@@ -213,4 +270,119 @@ PeCoffLoaderGetPdbPointer (
return NULL;
}
+/**
+ Returns the size of the PE/COFF headers
+
+ Returns the size of the PE/COFF header specified by Pe32Data.
+ If Pe32Data is NULL, then ASSERT().
+
+ @param Pe32Data The pointer to the PE/COFF image that is loaded in system
+ memory.
+
+ @return Size of PE/COFF header in bytes or zero if not a valid image.
+
+**/
+UINT32
+EFIAPI
+PeCoffGetSizeOfHeaders (
+ IN VOID *Pe32Data
+ )
+{
+ EFI_IMAGE_DOS_HEADER *DosHdr;
+ EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;
+ UINTN SizeOfHeaders;
+
+ ASSERT (Pe32Data != NULL);
+
+ 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 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));
+ } else {
+ //
+ // DOS image header is not present, so PE header is at the image base.
+ //
+ Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;
+ }
+
+ if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {
+ SizeOfHeaders = sizeof (EFI_TE_IMAGE_HEADER) + (UINTN)Hdr.Te->BaseOfCode - (UINTN)Hdr.Te->StrippedSize;
+ } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {
+ SizeOfHeaders = Hdr.Pe32->OptionalHeader.SizeOfHeaders;
+ } else {
+ SizeOfHeaders = 0;
+ }
+
+ return (UINT32) SizeOfHeaders;
+}
+
+/**
+ Returns PE/COFF image base is loaded in system memory where the input address is in.
+
+ On DEBUG build, searches the PE/COFF image base forward the input address and
+ returns it.
+
+ @param Address Address located in one PE/COFF image.
+
+ @retval 0 RELEASE build or cannot find the PE/COFF image base.
+ @retval others PE/COFF image base found.
+
+**/
+UINTN
+EFIAPI
+PeCoffSearchImageBase (
+ IN UINTN Address
+ )
+{
+ UINTN Pe32Data;
+ Pe32Data = 0;
+
+ DEBUG_CODE (
+ EFI_IMAGE_DOS_HEADER *DosHdr;
+ EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;
+
+ //
+ // Find Image Base
+ //
+ Pe32Data = Address & ~(PE_COFF_IMAGE_ALIGN_SIZE - 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 < Address)) {
+ if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {
+ 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_IA64) ||
+ (Hdr.Te->Machine == IMAGE_FILE_MACHINE_EBC) || (Hdr.Te->Machine == IMAGE_FILE_MACHINE_X64) ||
+ (Hdr.Te->Machine == IMAGE_FILE_MACHINE_ARM64) || (Hdr.Te->Machine == IMAGE_FILE_MACHINE_ARMTHUMB_MIXED))
+ ) {
+ break;
+ }
+ }
+
+ //
+ // Not found the image base, check the previous aligned address
+ //
+ Pe32Data -= PE_COFF_IMAGE_ALIGN_SIZE;
+ }
+ );
+
+ return Pe32Data;
+}