]> git.proxmox.com Git - mirror_edk2.git/blobdiff - Nt32Pkg/Library/Nt32PeiPeCoffGetEntryPointLib/PeCoffGetEntryPoint.c
1. Replace PeCoffLoader library by PeCoff lib for PeiCore, DxeIpl and DxeMain.
[mirror_edk2.git] / Nt32Pkg / Library / Nt32PeiPeCoffGetEntryPointLib / PeCoffGetEntryPoint.c
index 4f3c505cdd964a9736993bfa514af7df7aa70ead..70647426faf873e582d7b5385a5235f8013db5bf 100644 (file)
@@ -27,6 +27,7 @@ Revision History
 #include <Ppi/NtPeiLoadFile.h>\r
 #include <Library/PeCoffGetEntryPointLib.h>\r
 #include <Library/PeiServicesLib.h>\r
+#include <Library/DebugLib.h>\r
 \r
 \r
 RETURN_STATUS\r
@@ -63,15 +64,16 @@ Returns:
   UINT64                  ImageSize;\r
   EFI_PHYSICAL_ADDRESS    ImageEntryPoint;\r
 \r
+  ASSERT (Pe32Data   != NULL);\r
+  ASSERT (EntryPoint != NULL);\r
+\r
   Status = PeiServicesLocatePpi (\r
              &gNtPeiLoadFilePpiGuid,\r
              0,\r
              &PpiDescriptor,\r
              &PeiNtService\r
              );\r
-  if (EFI_ERROR (Status)) {\r
-    return Status;\r
-  }\r
+  ASSERT_EFI_ERROR (Status);\r
 \r
   Status = PeiNtService->PeiLoadFileService (\r
                            Pe32Data,\r
@@ -79,6 +81,10 @@ Returns:
                            &ImageSize,\r
                            &ImageEntryPoint\r
                            );\r
+  if (EFI_ERROR (Status)) {\r
+    return Status;\r
+  }\r
+\r
   *EntryPoint = (VOID*)(UINTN)ImageEntryPoint;\r
   return Status;\r
 }\r
@@ -90,9 +96,9 @@ Returns:
   level debug.\r
    \r
 \r
-  @param  Image   Pointer to a PE/COFF header\r
+  @param  Pe32Data   Pointer to a PE/COFF header\r
 \r
-  @return         Machine type or zero if not a valid iamge\r
+  @return            Machine type or zero if not a valid iamge\r
 \r
 **/\r
 UINT16\r
@@ -104,17 +110,163 @@ PeCoffLoaderGetMachineType (
   EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION  Hdr;\r
   EFI_IMAGE_DOS_HEADER                 *DosHdr;\r
 \r
+  ASSERT (Pe32Data   != NULL);\r
+\r
   DosHdr = (EFI_IMAGE_DOS_HEADER  *)Pe32Data;\r
   if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r
-    Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN)Pe32Data + DosHdr->e_lfanew);\r
+    //\r
+    // DOS image header is present, so read the PE header after the DOS image header.\r
+    //\r
+    Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));\r
   } else {\r
-    Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN)Pe32Data);\r
+    //\r
+    // DOS image header is not present, so PE header is at the image base.\r
+    //\r
+    Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;\r
   }\r
 \r
-  if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE)  {\r
+  if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {\r
+    return Hdr.Te->Machine;\r
+  } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE)  {\r
     return Hdr.Pe32->FileHeader.Machine;\r
   }\r
 \r
   return 0x0000;\r
 }\r
 \r
+/**\r
+  Returns a pointer to the PDB file name for a PE/COFF image that has been\r
+  loaded into system memory with the PE/COFF Loader Library functions.\r
+\r
+  Returns the PDB file name for the PE/COFF image specified by Pe32Data.  If\r
+  the PE/COFF image specified by Pe32Data is not a valid, then NULL is\r
+  returned.  If the PE/COFF image specified by Pe32Data does not contain a\r
+  debug directory entry, then NULL is returned.  If the debug directory entry\r
+  in the PE/COFF image specified by Pe32Data does not contain a PDB file name,\r
+  then NULL is returned.\r
+  If Pe32Data is NULL, then ASSERT().\r
+\r
+  @param  Pe32Data   Pointer to the PE/COFF image that is loaded in system\r
+                     memory.\r
+\r
+  @return The PDB file name for the PE/COFF image specified by Pe32Data or NULL\r
+          if it cannot be retrieved.\r
+\r
+**/\r
+VOID *\r
+EFIAPI\r
+PeCoffLoaderGetPdbPointer (\r
+  IN VOID  *Pe32Data\r
+  )\r
+{\r
+  EFI_IMAGE_DOS_HEADER                  *DosHdr;\r
+  EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION   Hdr;\r
+  EFI_IMAGE_DATA_DIRECTORY              *DirectoryEntry;\r
+  EFI_IMAGE_DEBUG_DIRECTORY_ENTRY       *DebugEntry;\r
+  UINTN                                 DirCount;\r
+  VOID                                  *CodeViewEntryPointer;\r
+  INTN                                  TEImageAdjust;\r
+  UINT32                                NumberOfRvaAndSizes;\r
+  UINT16                                Magic;\r
+\r
+  ASSERT (Pe32Data   != NULL);\r
+\r
+  TEImageAdjust       = 0;\r
+  DirectoryEntry      = NULL;\r
+  DebugEntry          = NULL;\r
+  NumberOfRvaAndSizes = 0;\r
+\r
+  DosHdr = (EFI_IMAGE_DOS_HEADER *)Pe32Data;\r
+  if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r
+    //\r
+    // DOS image header is present, so read the PE header after the DOS image header.\r
+    //\r
+    Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));\r
+  } else {\r
+    //\r
+    // DOS image header is not present, so PE header is at the image base.\r
+    //\r
+    Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;\r
+  }\r
+\r
+  if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {\r
+    if (Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress != 0) {\r
+      DirectoryEntry  = &Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG];\r
+      TEImageAdjust   = sizeof (EFI_TE_IMAGE_HEADER) - Hdr.Te->StrippedSize;\r
+      DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *)((UINTN) Hdr.Te +\r
+                    Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress +\r
+                    TEImageAdjust);\r
+    }\r
+  } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {\r
+    //\r
+    // NOTE: We use Machine field to identify PE32/PE32+, instead of Magic.\r
+    //       It is due to backward-compatibility, for some system might\r
+    //       generate PE32+ image with PE32 Magic.\r
+    //\r
+    switch (Hdr.Pe32->FileHeader.Machine) {\r
+    case EFI_IMAGE_MACHINE_IA32:\r
+      //\r
+      // Assume PE32 image with IA32 Machine field.\r
+      //\r
+      Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;\r
+      break;\r
+    case EFI_IMAGE_MACHINE_X64:\r
+    case EFI_IMAGE_MACHINE_IPF:\r
+      //\r
+      // Assume PE32+ image with X64 or IPF Machine field\r
+      //\r
+      Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;\r
+      break;\r
+    default:\r
+      //\r
+      // For unknow Machine field, use Magic in optional Header\r
+      //\r
+      Magic = Hdr.Pe32->OptionalHeader.Magic;\r
+    }\r
+\r
+    if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
+      //\r
+      // Use PE32 offset get Debug Directory Entry\r
+      //\r
+      NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;\r
+      DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);\r
+      DebugEntry     = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *) ((UINTN) Pe32Data + DirectoryEntry->VirtualAddress);\r
+    } else if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {\r
+      //\r
+      // Use PE32+ offset get Debug Directory Entry\r
+      //\r
+      NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;\r
+      DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);\r
+      DebugEntry     = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *) ((UINTN) Pe32Data + DirectoryEntry->VirtualAddress);\r
+    }\r
+\r
+    if (NumberOfRvaAndSizes <= EFI_IMAGE_DIRECTORY_ENTRY_DEBUG) {\r
+      DirectoryEntry = NULL;\r
+      DebugEntry = NULL;\r
+    }\r
+  } else {\r
+    return NULL;\r
+  }\r
+\r
+  if (DebugEntry == NULL || DirectoryEntry == NULL) {\r
+    return NULL;\r
+  }\r
+\r
+  for (DirCount = 0; DirCount < DirectoryEntry->Size; DirCount += sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY), DebugEntry++) {\r
+    if (DebugEntry->Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {\r
+      if (DebugEntry->SizeOfData > 0) {\r
+        CodeViewEntryPointer = (VOID *) ((UINTN) DebugEntry->RVA + ((UINTN)Pe32Data) + (UINTN)TEImageAdjust);\r
+        switch (* (UINT32 *) CodeViewEntryPointer) {\r
+        case CODEVIEW_SIGNATURE_NB10:\r
+          return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY));\r
+        case CODEVIEW_SIGNATURE_RSDS:\r
+          return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY));\r
+        default:\r
+          break;\r
+        }\r
+      }\r
+    }\r
+  }\r
+\r
+  return NULL;\r
+}\r