-/** @file
-
-Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
-Portions copyright (c) 2013, ARM Ltd. All rights reserved.<BR>
-
-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
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include "WinNtInclude.h"
-
-#ifndef __GNUC__
-#include <windows.h>
-#include <io.h>
-#endif
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <ctype.h>
-
-#include <Common/UefiBaseTypes.h>
-#include <IndustryStandard/PeImage.h>
-
-#include "PeCoffLib.h"
-#include "EfiUtilityMsgs.h"
-
-#include "GenFw.h"
-#include "ElfConvert.h"
-#include "Elf32Convert.h"
-
-STATIC
-VOID
-ScanSections32 (
- VOID
- );
-
-STATIC
-BOOLEAN
-WriteSections32 (
- SECTION_FILTER_TYPES FilterType
- );
-
-STATIC
-VOID
-WriteRelocations32 (
- VOID
- );
-
-STATIC
-VOID
-WriteDebug32 (
- VOID
- );
-
-STATIC
-VOID
-SetImageSize32 (
- VOID
- );
-
-STATIC
-VOID
-CleanUp32 (
- VOID
- );
-
-//
-// Rename ELF32 strucutres to common names to help when porting to ELF64.
-//
-typedef Elf32_Shdr Elf_Shdr;
-typedef Elf32_Ehdr Elf_Ehdr;
-typedef Elf32_Rel Elf_Rel;
-typedef Elf32_Sym Elf_Sym;
-typedef Elf32_Phdr Elf_Phdr;
-typedef Elf32_Dyn Elf_Dyn;
-#define ELFCLASS ELFCLASS32
-#define ELF_R_TYPE(r) ELF32_R_TYPE(r)
-#define ELF_R_SYM(r) ELF32_R_SYM(r)
-
-//
-// Well known ELF structures.
-//
-STATIC Elf_Ehdr *mEhdr;
-STATIC Elf_Shdr *mShdrBase;
-STATIC Elf_Phdr *mPhdrBase;
-
-//
-// Coff information
-//
-STATIC const UINT32 mCoffAlignment = 0x20;
-
-//
-// PE section alignment.
-//
-STATIC const UINT16 mCoffNbrSections = 5;
-
-//
-// ELF sections to offset in Coff file.
-//
-STATIC UINT32 *mCoffSectionsOffset = NULL;
-
-//
-// Offsets in COFF file
-//
-STATIC UINT32 mNtHdrOffset;
-STATIC UINT32 mTextOffset;
-STATIC UINT32 mDataOffset;
-STATIC UINT32 mHiiRsrcOffset;
-STATIC UINT32 mRelocOffset;
-
-//
-// Initialization Function
-//
-BOOLEAN
-InitializeElf32 (
- UINT8 *FileBuffer,
- ELF_FUNCTION_TABLE *ElfFunctions
- )
-{
- //
- // Initialize data pointer and structures.
- //
- mEhdr = (Elf_Ehdr*) FileBuffer;
-
- //
- // Check the ELF32 specific header information.
- //
- if (mEhdr->e_ident[EI_CLASS] != ELFCLASS32) {
- Error (NULL, 0, 3000, "Unsupported", "ELF EI_DATA not ELFCLASS32");
- return FALSE;
- }
- if (mEhdr->e_ident[EI_DATA] != ELFDATA2LSB) {
- Error (NULL, 0, 3000, "Unsupported", "ELF EI_DATA not ELFDATA2LSB");
- return FALSE;
- }
- if ((mEhdr->e_type != ET_EXEC) && (mEhdr->e_type != ET_DYN)) {
- Error (NULL, 0, 3000, "Unsupported", "ELF e_type not ET_EXEC or ET_DYN");
- return FALSE;
- }
- if (!((mEhdr->e_machine == EM_386) || (mEhdr->e_machine == EM_ARM))) {
- Error (NULL, 0, 3000, "Unsupported", "ELF e_machine not EM_386 or EM_ARM");
- return FALSE;
- }
- if (mEhdr->e_version != EV_CURRENT) {
- Error (NULL, 0, 3000, "Unsupported", "ELF e_version (%u) not EV_CURRENT (%d)", (unsigned) mEhdr->e_version, EV_CURRENT);
- return FALSE;
- }
-
- //
- // Update section header pointers
- //
- mShdrBase = (Elf_Shdr *)((UINT8 *)mEhdr + mEhdr->e_shoff);
- mPhdrBase = (Elf_Phdr *)((UINT8 *)mEhdr + mEhdr->e_phoff);
-
- //
- // Create COFF Section offset buffer and zero.
- //
- mCoffSectionsOffset = (UINT32 *)malloc(mEhdr->e_shnum * sizeof (UINT32));
- memset(mCoffSectionsOffset, 0, mEhdr->e_shnum * sizeof(UINT32));
-
- //
- // Fill in function pointers.
- //
- ElfFunctions->ScanSections = ScanSections32;
- ElfFunctions->WriteSections = WriteSections32;
- ElfFunctions->WriteRelocations = WriteRelocations32;
- ElfFunctions->WriteDebug = WriteDebug32;
- ElfFunctions->SetImageSize = SetImageSize32;
- ElfFunctions->CleanUp = CleanUp32;
-
- return TRUE;
-}
-
-
-//
-// Header by Index functions
-//
-STATIC
-Elf_Shdr*
-GetShdrByIndex (
- UINT32 Num
- )
-{
- if (Num >= mEhdr->e_shnum)
- return NULL;
- return (Elf_Shdr*)((UINT8*)mShdrBase + Num * mEhdr->e_shentsize);
-}
-
-STATIC
-Elf_Phdr*
-GetPhdrByIndex (
- UINT32 num
- )
-{
- if (num >= mEhdr->e_phnum) {
- return NULL;
- }
-
- return (Elf_Phdr *)((UINT8*)mPhdrBase + num * mEhdr->e_phentsize);
-}
-
-STATIC
-UINT32
-CoffAlign (
- UINT32 Offset
- )
-{
- return (Offset + mCoffAlignment - 1) & ~(mCoffAlignment - 1);
-}
-
-//
-// filter functions
-//
-STATIC
-BOOLEAN
-IsTextShdr (
- Elf_Shdr *Shdr
- )
-{
- return (BOOLEAN) ((Shdr->sh_flags & (SHF_WRITE | SHF_ALLOC)) == SHF_ALLOC);
-}
-
-STATIC
-BOOLEAN
-IsHiiRsrcShdr (
- Elf_Shdr *Shdr
- )
-{
- Elf_Shdr *Namedr = GetShdrByIndex(mEhdr->e_shstrndx);
-
- return (BOOLEAN) (strcmp((CHAR8*)mEhdr + Namedr->sh_offset + Shdr->sh_name, ELF_HII_SECTION_NAME) == 0);
-}
-
-STATIC
-BOOLEAN
-IsDataShdr (
- Elf_Shdr *Shdr
- )
-{
- if (IsHiiRsrcShdr(Shdr)) {
- return FALSE;
- }
- return (BOOLEAN) (Shdr->sh_flags & (SHF_WRITE | SHF_ALLOC)) == (SHF_ALLOC | SHF_WRITE);
-}
-
-//
-// Elf functions interface implementation
-//
-
-STATIC
-VOID
-ScanSections32 (
- VOID
- )
-{
- UINT32 i;
- EFI_IMAGE_DOS_HEADER *DosHdr;
- EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;
- UINT32 CoffEntry;
- UINT32 SectionCount;
- BOOLEAN FoundText;
-
- CoffEntry = 0;
- mCoffOffset = 0;
- mTextOffset = 0;
- FoundText = FALSE;
-
- //
- // Coff file start with a DOS header.
- //
- mCoffOffset = sizeof(EFI_IMAGE_DOS_HEADER) + 0x40;
- mNtHdrOffset = mCoffOffset;
- switch (mEhdr->e_machine) {
- case EM_386:
- case EM_ARM:
- mCoffOffset += sizeof (EFI_IMAGE_NT_HEADERS32);
- break;
- default:
- VerboseMsg ("%s unknown e_machine type. Assume IA-32", (UINTN)mEhdr->e_machine);
- mCoffOffset += sizeof (EFI_IMAGE_NT_HEADERS32);
- break;
- }
-
- mTableOffset = mCoffOffset;
- mCoffOffset += mCoffNbrSections * sizeof(EFI_IMAGE_SECTION_HEADER);
-
- //
- // First text sections.
- //
- mCoffOffset = CoffAlign(mCoffOffset);
- SectionCount = 0;
- for (i = 0; i < mEhdr->e_shnum; i++) {
- Elf_Shdr *shdr = GetShdrByIndex(i);
- if (IsTextShdr(shdr)) {
- if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {
- // the alignment field is valid
- if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {
- // if the section address is aligned we must align PE/COFF
- mCoffOffset = (mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1);
- } else if ((shdr->sh_addr % shdr->sh_addralign) != (mCoffOffset % shdr->sh_addralign)) {
- // ARM RVCT tools have behavior outside of the ELF specification to try
- // and make images smaller. If sh_addr is not aligned to sh_addralign
- // then the section needs to preserve sh_addr MOD sh_addralign.
- // Normally doing nothing here works great.
- Error (NULL, 0, 3000, "Invalid", "Unsupported section alignment.");
- }
- }
-
- /* Relocate entry. */
- if ((mEhdr->e_entry >= shdr->sh_addr) &&
- (mEhdr->e_entry < shdr->sh_addr + shdr->sh_size)) {
- CoffEntry = mCoffOffset + mEhdr->e_entry - shdr->sh_addr;
- }
-
- //
- // Set mTextOffset with the offset of the first '.text' section
- //
- if (!FoundText) {
- mTextOffset = mCoffOffset;
- FoundText = TRUE;
- }
-
- mCoffSectionsOffset[i] = mCoffOffset;
- mCoffOffset += shdr->sh_size;
- SectionCount ++;
- }
- }
-
- if (!FoundText) {
- Error (NULL, 0, 3000, "Invalid", "Did not find any '.text' section.");
- assert (FALSE);
- }
-
- if (mEhdr->e_machine != EM_ARM) {
- mCoffOffset = CoffAlign(mCoffOffset);
- }
-
- if (SectionCount > 1 && mOutImageType == FW_EFI_IMAGE) {
- Warning (NULL, 0, 0, NULL, "Mulitple sections in %s are merged into 1 text section. Source level debug might not work correctly.", mInImageName);
- }
-
- //
- // Then data sections.
- //
- mDataOffset = mCoffOffset;
- SectionCount = 0;
- for (i = 0; i < mEhdr->e_shnum; i++) {
- Elf_Shdr *shdr = GetShdrByIndex(i);
- if (IsDataShdr(shdr)) {
- if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {
- // the alignment field is valid
- if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {
- // if the section address is aligned we must align PE/COFF
- mCoffOffset = (mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1);
- } else if ((shdr->sh_addr % shdr->sh_addralign) != (mCoffOffset % shdr->sh_addralign)) {
- // ARM RVCT tools have behavior outside of the ELF specification to try
- // and make images smaller. If sh_addr is not aligned to sh_addralign
- // then the section needs to preserve sh_addr MOD sh_addralign.
- // Normally doing nothing here works great.
- Error (NULL, 0, 3000, "Invalid", "Unsupported section alignment.");
- }
- }
- mCoffSectionsOffset[i] = mCoffOffset;
- mCoffOffset += shdr->sh_size;
- SectionCount ++;
- }
- }
- mCoffOffset = CoffAlign(mCoffOffset);
-
- if (SectionCount > 1 && mOutImageType == FW_EFI_IMAGE) {
- Warning (NULL, 0, 0, NULL, "Mulitple sections in %s are merged into 1 data section. Source level debug might not work correctly.", mInImageName);
- }
-
- //
- // The HII resource sections.
- //
- mHiiRsrcOffset = mCoffOffset;
- for (i = 0; i < mEhdr->e_shnum; i++) {
- Elf_Shdr *shdr = GetShdrByIndex(i);
- if (IsHiiRsrcShdr(shdr)) {
- if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {
- // the alignment field is valid
- if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {
- // if the section address is aligned we must align PE/COFF
- mCoffOffset = (mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1);
- } else if ((shdr->sh_addr % shdr->sh_addralign) != (mCoffOffset % shdr->sh_addralign)) {
- // ARM RVCT tools have behavior outside of the ELF specification to try
- // and make images smaller. If sh_addr is not aligned to sh_addralign
- // then the section needs to preserve sh_addr MOD sh_addralign.
- // Normally doing nothing here works great.
- Error (NULL, 0, 3000, "Invalid", "Unsupported section alignment.");
- }
- }
- if (shdr->sh_size != 0) {
- mCoffSectionsOffset[i] = mCoffOffset;
- mCoffOffset += shdr->sh_size;
- mCoffOffset = CoffAlign(mCoffOffset);
- SetHiiResourceHeader ((UINT8*) mEhdr + shdr->sh_offset, mHiiRsrcOffset);
- }
- break;
- }
- }
-
- mRelocOffset = mCoffOffset;
-
- //
- // Allocate base Coff file. Will be expanded later for relocations.
- //
- mCoffFile = (UINT8 *)malloc(mCoffOffset);
- memset(mCoffFile, 0, mCoffOffset);
-
- //
- // Fill headers.
- //
- DosHdr = (EFI_IMAGE_DOS_HEADER *)mCoffFile;
- DosHdr->e_magic = EFI_IMAGE_DOS_SIGNATURE;
- DosHdr->e_lfanew = mNtHdrOffset;
-
- NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION*)(mCoffFile + mNtHdrOffset);
-
- NtHdr->Pe32.Signature = EFI_IMAGE_NT_SIGNATURE;
-
- switch (mEhdr->e_machine) {
- case EM_386:
- NtHdr->Pe32.FileHeader.Machine = EFI_IMAGE_MACHINE_IA32;
- NtHdr->Pe32.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;
- break;
- case EM_ARM:
- NtHdr->Pe32.FileHeader.Machine = EFI_IMAGE_MACHINE_ARMT;
- NtHdr->Pe32.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;
- break;
- default:
- VerboseMsg ("%s unknown e_machine type. Assume IA-32", (UINTN)mEhdr->e_machine);
- NtHdr->Pe32.FileHeader.Machine = EFI_IMAGE_MACHINE_IA32;
- NtHdr->Pe32.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;
- }
-
- NtHdr->Pe32.FileHeader.NumberOfSections = mCoffNbrSections;
- NtHdr->Pe32.FileHeader.TimeDateStamp = (UINT32) time(NULL);
- mImageTimeStamp = NtHdr->Pe32.FileHeader.TimeDateStamp;
- NtHdr->Pe32.FileHeader.PointerToSymbolTable = 0;
- NtHdr->Pe32.FileHeader.NumberOfSymbols = 0;
- NtHdr->Pe32.FileHeader.SizeOfOptionalHeader = sizeof(NtHdr->Pe32.OptionalHeader);
- NtHdr->Pe32.FileHeader.Characteristics = EFI_IMAGE_FILE_EXECUTABLE_IMAGE
- | EFI_IMAGE_FILE_LINE_NUMS_STRIPPED
- | EFI_IMAGE_FILE_LOCAL_SYMS_STRIPPED
- | EFI_IMAGE_FILE_32BIT_MACHINE;
-
- NtHdr->Pe32.OptionalHeader.SizeOfCode = mDataOffset - mTextOffset;
- NtHdr->Pe32.OptionalHeader.SizeOfInitializedData = mRelocOffset - mDataOffset;
- NtHdr->Pe32.OptionalHeader.SizeOfUninitializedData = 0;
- NtHdr->Pe32.OptionalHeader.AddressOfEntryPoint = CoffEntry;
-
- NtHdr->Pe32.OptionalHeader.BaseOfCode = mTextOffset;
-
- NtHdr->Pe32.OptionalHeader.BaseOfData = mDataOffset;
- NtHdr->Pe32.OptionalHeader.ImageBase = 0;
- NtHdr->Pe32.OptionalHeader.SectionAlignment = mCoffAlignment;
- NtHdr->Pe32.OptionalHeader.FileAlignment = mCoffAlignment;
- NtHdr->Pe32.OptionalHeader.SizeOfImage = 0;
-
- NtHdr->Pe32.OptionalHeader.SizeOfHeaders = mTextOffset;
- NtHdr->Pe32.OptionalHeader.NumberOfRvaAndSizes = EFI_IMAGE_NUMBER_OF_DIRECTORY_ENTRIES;
-
- //
- // Section headers.
- //
- if ((mDataOffset - mTextOffset) > 0) {
- CreateSectionHeader (".text", mTextOffset, mDataOffset - mTextOffset,
- EFI_IMAGE_SCN_CNT_CODE
- | EFI_IMAGE_SCN_MEM_EXECUTE
- | EFI_IMAGE_SCN_MEM_READ);
- } else {
- // Don't make a section of size 0.
- NtHdr->Pe32.FileHeader.NumberOfSections--;
- }
-
- if ((mHiiRsrcOffset - mDataOffset) > 0) {
- CreateSectionHeader (".data", mDataOffset, mHiiRsrcOffset - mDataOffset,
- EFI_IMAGE_SCN_CNT_INITIALIZED_DATA
- | EFI_IMAGE_SCN_MEM_WRITE
- | EFI_IMAGE_SCN_MEM_READ);
- } else {
- // Don't make a section of size 0.
- NtHdr->Pe32.FileHeader.NumberOfSections--;
- }
-
- if ((mRelocOffset - mHiiRsrcOffset) > 0) {
- CreateSectionHeader (".rsrc", mHiiRsrcOffset, mRelocOffset - mHiiRsrcOffset,
- EFI_IMAGE_SCN_CNT_INITIALIZED_DATA
- | EFI_IMAGE_SCN_MEM_READ);
-
- NtHdr->Pe32.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_RESOURCE].Size = mRelocOffset - mHiiRsrcOffset;
- NtHdr->Pe32.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress = mHiiRsrcOffset;
- } else {
- // Don't make a section of size 0.
- NtHdr->Pe32.FileHeader.NumberOfSections--;
- }
-
-}
-
-STATIC
-BOOLEAN
-WriteSections32 (
- SECTION_FILTER_TYPES FilterType
- )
-{
- UINT32 Idx;
- Elf_Shdr *SecShdr;
- UINT32 SecOffset;
- BOOLEAN (*Filter)(Elf_Shdr *);
-
- //
- // Initialize filter pointer
- //
- switch (FilterType) {
- case SECTION_TEXT:
- Filter = IsTextShdr;
- break;
- case SECTION_HII:
- Filter = IsHiiRsrcShdr;
- break;
- case SECTION_DATA:
- Filter = IsDataShdr;
- break;
- default:
- return FALSE;
- }
-
- //
- // First: copy sections.
- //
- for (Idx = 0; Idx < mEhdr->e_shnum; Idx++) {
- Elf_Shdr *Shdr = GetShdrByIndex(Idx);
- if ((*Filter)(Shdr)) {
- switch (Shdr->sh_type) {
- case SHT_PROGBITS:
- /* Copy. */
- memcpy(mCoffFile + mCoffSectionsOffset[Idx],
- (UINT8*)mEhdr + Shdr->sh_offset,
- Shdr->sh_size);
- break;
-
- case SHT_NOBITS:
- memset(mCoffFile + mCoffSectionsOffset[Idx], 0, Shdr->sh_size);
- break;
-
- default:
- //
- // Ignore for unkown section type.
- //
- VerboseMsg ("%s unknown section type %x. We directly copy this section into Coff file", mInImageName, (unsigned)Shdr->sh_type);
- break;
- }
- }
- }
-
- //
- // Second: apply relocations.
- //
- for (Idx = 0; Idx < mEhdr->e_shnum; Idx++) {
- //
- // Determine if this is a relocation section.
- //
- Elf_Shdr *RelShdr = GetShdrByIndex(Idx);
- if ((RelShdr->sh_type != SHT_REL) && (RelShdr->sh_type != SHT_RELA)) {
- continue;
- }
-
- //
- // Relocation section found. Now extract section information that the relocations
- // apply to in the ELF data and the new COFF data.
- //
- SecShdr = GetShdrByIndex(RelShdr->sh_info);
- SecOffset = mCoffSectionsOffset[RelShdr->sh_info];
-
- //
- // Only process relocations for the current filter type.
- //
- if (RelShdr->sh_type == SHT_REL && (*Filter)(SecShdr)) {
- UINT32 RelOffset;
-
- //
- // Determine the symbol table referenced by the relocation data.
- //
- Elf_Shdr *SymtabShdr = GetShdrByIndex(RelShdr->sh_link);
- UINT8 *Symtab = (UINT8*)mEhdr + SymtabShdr->sh_offset;
-
- //
- // Process all relocation entries for this section.
- //
- for (RelOffset = 0; RelOffset < RelShdr->sh_size; RelOffset += RelShdr->sh_entsize) {
- //
- // Set pointer to relocation entry
- //
- Elf_Rel *Rel = (Elf_Rel *)((UINT8*)mEhdr + RelShdr->sh_offset + RelOffset);
-
- //
- // Set pointer to symbol table entry associated with the relocation entry.
- //
- Elf_Sym *Sym = (Elf_Sym *)(Symtab + ELF_R_SYM(Rel->r_info) * SymtabShdr->sh_entsize);
-
- Elf_Shdr *SymShdr;
- UINT8 *Targ;
- UINT16 Address;
-
- //
- // Check section header index found in symbol table and get the section
- // header location.
- //
- if (Sym->st_shndx == SHN_UNDEF
- || Sym->st_shndx == SHN_ABS
- || Sym->st_shndx > mEhdr->e_shnum) {
- Error (NULL, 0, 3000, "Invalid", "%s bad symbol definition.", mInImageName);
- }
- SymShdr = GetShdrByIndex(Sym->st_shndx);
-
- //
- // Convert the relocation data to a pointer into the coff file.
- //
- // Note:
- // r_offset is the virtual address of the storage unit to be relocated.
- // sh_addr is the virtual address for the base of the section.
- //
- Targ = mCoffFile + SecOffset + (Rel->r_offset - SecShdr->sh_addr);
-
- //
- // Determine how to handle each relocation type based on the machine type.
- //
- if (mEhdr->e_machine == EM_386) {
- switch (ELF_R_TYPE(Rel->r_info)) {
- case R_386_NONE:
- break;
- case R_386_32:
- //
- // Absolute relocation.
- // Converts Targ from a absolute virtual address to the absolute
- // COFF address.
- //
- *(UINT32 *)Targ = *(UINT32 *)Targ - SymShdr->sh_addr
- + mCoffSectionsOffset[Sym->st_shndx];
- break;
- case R_386_PC32:
- //
- // Relative relocation: Symbol - Ip + Addend
- //
- *(UINT32 *)Targ = *(UINT32 *)Targ
- + (mCoffSectionsOffset[Sym->st_shndx] - SymShdr->sh_addr)
- - (SecOffset - SecShdr->sh_addr);
- break;
- default:
- Error (NULL, 0, 3000, "Invalid", "%s unsupported ELF EM_386 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));
- }
- } else if (mEhdr->e_machine == EM_ARM) {
- switch (ELF32_R_TYPE(Rel->r_info)) {
- case R_ARM_RBASE:
- // No relocation - no action required
- // break skipped
-
- case R_ARM_PC24:
- case R_ARM_XPC25:
- case R_ARM_THM_PC22:
- case R_ARM_THM_JUMP19:
- case R_ARM_CALL:
- case R_ARM_JMP24:
- case R_ARM_THM_JUMP24:
- case R_ARM_PREL31:
- case R_ARM_MOVW_PREL_NC:
- case R_ARM_MOVT_PREL:
- case R_ARM_THM_MOVW_PREL_NC:
- case R_ARM_THM_MOVT_PREL:
- case R_ARM_THM_JMP6:
- case R_ARM_THM_ALU_PREL_11_0:
- case R_ARM_THM_PC12:
- case R_ARM_REL32_NOI:
- case R_ARM_ALU_PC_G0_NC:
- case R_ARM_ALU_PC_G0:
- case R_ARM_ALU_PC_G1_NC:
- case R_ARM_ALU_PC_G1:
- case R_ARM_ALU_PC_G2:
- case R_ARM_LDR_PC_G1:
- case R_ARM_LDR_PC_G2:
- case R_ARM_LDRS_PC_G0:
- case R_ARM_LDRS_PC_G1:
- case R_ARM_LDRS_PC_G2:
- case R_ARM_LDC_PC_G0:
- case R_ARM_LDC_PC_G1:
- case R_ARM_LDC_PC_G2:
- case R_ARM_GOT_PREL:
- case R_ARM_THM_JUMP11:
- case R_ARM_THM_JUMP8:
- case R_ARM_TLS_GD32:
- case R_ARM_TLS_LDM32:
- case R_ARM_TLS_IE32:
- // Thease are all PC-relative relocations and don't require modification
- // GCC does not seem to have the concept of a application that just needs to get relocated.
- break;
-
- case R_ARM_THM_MOVW_ABS_NC:
- // MOVW is only lower 16-bits of the addres
- Address = (UINT16)(Sym->st_value - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx]);
- ThumbMovtImmediatePatch ((UINT16 *)Targ, Address);
- break;
-
- case R_ARM_THM_MOVT_ABS:
- // MOVT is only upper 16-bits of the addres
- Address = (UINT16)((Sym->st_value - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx]) >> 16);
- ThumbMovtImmediatePatch ((UINT16 *)Targ, Address);
- break;
-
- case R_ARM_ABS32:
- case R_ARM_RABS32:
- //
- // Absolute relocation.
- //
- *(UINT32 *)Targ = *(UINT32 *)Targ - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx];
- break;
-
- default:
- Error (NULL, 0, 3000, "Invalid", "WriteSections (): %s unsupported ELF EM_ARM relocation 0x%x.", mInImageName, (unsigned) ELF32_R_TYPE(Rel->r_info));
- }
- }
- }
- }
- }
-
- return TRUE;
-}
-
-UINTN gMovwOffset = 0;
-
-STATIC
-VOID
-WriteRelocations32 (
- VOID
- )
-{
- UINT32 Index;
- EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;
- EFI_IMAGE_DATA_DIRECTORY *Dir;
- BOOLEAN FoundRelocations;
- Elf_Dyn *Dyn;
- Elf_Rel *Rel;
- UINTN RelElementSize;
- UINTN RelSize;
- UINTN RelOffset;
- UINTN K;
- UINT8 *Targ;
- Elf32_Phdr *DynamicSegment;
- Elf32_Phdr *TargetSegment;
-
- for (Index = 0, FoundRelocations = FALSE; Index < mEhdr->e_shnum; Index++) {
- Elf_Shdr *RelShdr = GetShdrByIndex(Index);
- if ((RelShdr->sh_type == SHT_REL) || (RelShdr->sh_type == SHT_RELA)) {
- Elf_Shdr *SecShdr = GetShdrByIndex (RelShdr->sh_info);
- if (IsTextShdr(SecShdr) || IsDataShdr(SecShdr)) {
- UINT32 RelIdx;
-
- FoundRelocations = TRUE;
- for (RelIdx = 0; RelIdx < RelShdr->sh_size; RelIdx += RelShdr->sh_entsize) {
- Elf_Rel *Rel = (Elf_Rel *)((UINT8*)mEhdr + RelShdr->sh_offset + RelIdx);
-
- if (mEhdr->e_machine == EM_386) {
- switch (ELF_R_TYPE(Rel->r_info)) {
- case R_386_NONE:
- case R_386_PC32:
- //
- // No fixup entry required.
- //
- break;
- case R_386_32:
- //
- // Creates a relative relocation entry from the absolute entry.
- //
- CoffAddFixup(mCoffSectionsOffset[RelShdr->sh_info]
- + (Rel->r_offset - SecShdr->sh_addr),
- EFI_IMAGE_REL_BASED_HIGHLOW);
- break;
- default:
- Error (NULL, 0, 3000, "Invalid", "%s unsupported ELF EM_386 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));
- }
- } else if (mEhdr->e_machine == EM_ARM) {
- switch (ELF32_R_TYPE(Rel->r_info)) {
- case R_ARM_RBASE:
- // No relocation - no action required
- // break skipped
-
- case R_ARM_PC24:
- case R_ARM_XPC25:
- case R_ARM_THM_PC22:
- case R_ARM_THM_JUMP19:
- case R_ARM_CALL:
- case R_ARM_JMP24:
- case R_ARM_THM_JUMP24:
- case R_ARM_PREL31:
- case R_ARM_MOVW_PREL_NC:
- case R_ARM_MOVT_PREL:
- case R_ARM_THM_MOVW_PREL_NC:
- case R_ARM_THM_MOVT_PREL:
- case R_ARM_THM_JMP6:
- case R_ARM_THM_ALU_PREL_11_0:
- case R_ARM_THM_PC12:
- case R_ARM_REL32_NOI:
- case R_ARM_ALU_PC_G0_NC:
- case R_ARM_ALU_PC_G0:
- case R_ARM_ALU_PC_G1_NC:
- case R_ARM_ALU_PC_G1:
- case R_ARM_ALU_PC_G2:
- case R_ARM_LDR_PC_G1:
- case R_ARM_LDR_PC_G2:
- case R_ARM_LDRS_PC_G0:
- case R_ARM_LDRS_PC_G1:
- case R_ARM_LDRS_PC_G2:
- case R_ARM_LDC_PC_G0:
- case R_ARM_LDC_PC_G1:
- case R_ARM_LDC_PC_G2:
- case R_ARM_GOT_PREL:
- case R_ARM_THM_JUMP11:
- case R_ARM_THM_JUMP8:
- case R_ARM_TLS_GD32:
- case R_ARM_TLS_LDM32:
- case R_ARM_TLS_IE32:
- // Thease are all PC-relative relocations and don't require modification
- break;
-
- case R_ARM_THM_MOVW_ABS_NC:
- CoffAddFixup (
- mCoffSectionsOffset[RelShdr->sh_info]
- + (Rel->r_offset - SecShdr->sh_addr),
- EFI_IMAGE_REL_BASED_ARM_MOV32T
- );
-
- // PE/COFF treats MOVW/MOVT relocation as single 64-bit instruction
- // Track this address so we can log an error for unsupported sequence of MOVW/MOVT
- gMovwOffset = mCoffSectionsOffset[RelShdr->sh_info] + (Rel->r_offset - SecShdr->sh_addr);
- break;
-
- case R_ARM_THM_MOVT_ABS:
- if ((gMovwOffset + 4) != (mCoffSectionsOffset[RelShdr->sh_info] + (Rel->r_offset - SecShdr->sh_addr))) {
- Error (NULL, 0, 3000, "Not Supported", "PE/COFF requires MOVW+MOVT instruction sequence %x +4 != %x.", gMovwOffset, mCoffSectionsOffset[RelShdr->sh_info] + (Rel->r_offset - SecShdr->sh_addr));
- }
- break;
-
- case R_ARM_ABS32:
- case R_ARM_RABS32:
- CoffAddFixup (
- mCoffSectionsOffset[RelShdr->sh_info]
- + (Rel->r_offset - SecShdr->sh_addr),
- EFI_IMAGE_REL_BASED_HIGHLOW
- );
- break;
-
- default:
- Error (NULL, 0, 3000, "Invalid", "WriteRelocations(): %s unsupported ELF EM_ARM relocation 0x%x.", mInImageName, (unsigned) ELF32_R_TYPE(Rel->r_info));
- }
- } else {
- Error (NULL, 0, 3000, "Not Supported", "This tool does not support relocations for ELF with e_machine %u (processor type).", (unsigned) mEhdr->e_machine);
- }
- }
- }
- }
- }
-
- if (!FoundRelocations && (mEhdr->e_machine == EM_ARM)) {
- /* Try again, but look for PT_DYNAMIC instead of SHT_REL */
-
- for (Index = 0; Index < mEhdr->e_phnum; Index++) {
- RelElementSize = 0;
- RelSize = 0;
- RelOffset = 0;
-
- DynamicSegment = GetPhdrByIndex (Index);
-
- if (DynamicSegment->p_type == PT_DYNAMIC) {
- Dyn = (Elf32_Dyn *) ((UINT8 *)mEhdr + DynamicSegment->p_offset);
-
- while (Dyn->d_tag != DT_NULL) {
- switch (Dyn->d_tag) {
- case DT_REL:
- RelOffset = Dyn->d_un.d_val;
- break;
-
- case DT_RELSZ:
- RelSize = Dyn->d_un.d_val;
- break;
-
- case DT_RELENT:
- RelElementSize = Dyn->d_un.d_val;
- break;
-
- default:
- break;
- }
- Dyn++;
- }
- if (( RelOffset == 0 ) || ( RelSize == 0 ) || ( RelElementSize == 0 )) {
- Error (NULL, 0, 3000, "Invalid", "%s bad ARM dynamic relocations.", mInImageName);
- }
-
- for (K = 0; K < RelSize; K += RelElementSize) {
-
- if (DynamicSegment->p_paddr == 0) {
- // Older versions of the ARM ELF (SWS ESPC 0003 B-02) specification define DT_REL
- // as an offset in the dynamic segment. p_paddr is defined to be zero for ARM tools
- Rel = (Elf32_Rel *) ((UINT8 *) mEhdr + DynamicSegment->p_offset + RelOffset + K);
- } else {
- // This is how it reads in the generic ELF specification
- Rel = (Elf32_Rel *) ((UINT8 *) mEhdr + RelOffset + K);
- }
-
- switch (ELF32_R_TYPE (Rel->r_info)) {
- case R_ARM_RBASE:
- break;
-
- case R_ARM_RABS32:
- TargetSegment = GetPhdrByIndex (ELF32_R_SYM (Rel->r_info) - 1);
-
- // Note: r_offset in a memory address. Convert it to a pointer in the coff file.
- Targ = mCoffFile + mCoffSectionsOffset[ ELF32_R_SYM( Rel->r_info ) ] + Rel->r_offset - TargetSegment->p_vaddr;
-
- *(UINT32 *)Targ = *(UINT32 *)Targ + mCoffSectionsOffset [ELF32_R_SYM( Rel->r_info )];
-
- CoffAddFixup (mCoffSectionsOffset[ELF32_R_SYM (Rel->r_info)] + (Rel->r_offset - TargetSegment->p_vaddr), EFI_IMAGE_REL_BASED_HIGHLOW);
- break;
-
- default:
- Error (NULL, 0, 3000, "Invalid", "%s bad ARM dynamic relocations, unkown type %d.", mInImageName, ELF32_R_TYPE (Rel->r_info));
- break;
- }
- }
- break;
- }
- }
- }
-
- //
- // Pad by adding empty entries.
- //
- while (mCoffOffset & (mCoffAlignment - 1)) {
- CoffAddFixupEntry(0);
- }
-
- NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);
- Dir = &NtHdr->Pe32.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];
- Dir->Size = mCoffOffset - mRelocOffset;
- if (Dir->Size == 0) {
- // If no relocations, null out the directory entry and don't add the .reloc section
- Dir->VirtualAddress = 0;
- NtHdr->Pe32.FileHeader.NumberOfSections--;
- } else {
- Dir->VirtualAddress = mRelocOffset;
- CreateSectionHeader (".reloc", mRelocOffset, mCoffOffset - mRelocOffset,
- EFI_IMAGE_SCN_CNT_INITIALIZED_DATA
- | EFI_IMAGE_SCN_MEM_DISCARDABLE
- | EFI_IMAGE_SCN_MEM_READ);
- }
-
-}
-
-STATIC
-VOID
-WriteDebug32 (
- VOID
- )
-{
- UINT32 Len;
- UINT32 DebugOffset;
- EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;
- EFI_IMAGE_DATA_DIRECTORY *DataDir;
- EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *Dir;
- EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY *Nb10;
-
- Len = strlen(mInImageName) + 1;
- DebugOffset = mCoffOffset;
-
- mCoffOffset += sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY)
- + sizeof(EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY)
- + Len;
- mCoffOffset = CoffAlign(mCoffOffset);
-
- mCoffFile = realloc(mCoffFile, mCoffOffset);
- memset(mCoffFile + DebugOffset, 0, mCoffOffset - DebugOffset);
-
- Dir = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY*)(mCoffFile + DebugOffset);
- Dir->Type = EFI_IMAGE_DEBUG_TYPE_CODEVIEW;
- Dir->SizeOfData = sizeof(EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY) + Len;
- Dir->RVA = DebugOffset + sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);
- Dir->FileOffset = DebugOffset + sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);
-
- Nb10 = (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY*)(Dir + 1);
- Nb10->Signature = CODEVIEW_SIGNATURE_NB10;
- strcpy ((char *)(Nb10 + 1), mInImageName);
-
-
- NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);
- DataDir = &NtHdr->Pe32.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG];
- DataDir->VirtualAddress = DebugOffset;
- DataDir->Size = mCoffOffset - DebugOffset;
- if (DataDir->Size == 0) {
- // If no debug, null out the directory entry and don't add the .debug section
- DataDir->VirtualAddress = 0;
- NtHdr->Pe32.FileHeader.NumberOfSections--;
- } else {
- DataDir->VirtualAddress = DebugOffset;
- CreateSectionHeader (".debug", DebugOffset, mCoffOffset - DebugOffset,
- EFI_IMAGE_SCN_CNT_INITIALIZED_DATA
- | EFI_IMAGE_SCN_MEM_DISCARDABLE
- | EFI_IMAGE_SCN_MEM_READ);
-
- }
-}
-
-STATIC
-VOID
-SetImageSize32 (
- VOID
- )
-{
- EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;
-
- //
- // Set image size
- //
- NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);
- NtHdr->Pe32.OptionalHeader.SizeOfImage = mCoffOffset;
-}
-
-STATIC
-VOID
-CleanUp32 (
- VOID
- )
-{
- if (mCoffSectionsOffset != NULL) {
- free (mCoffSectionsOffset);
- }
-}
-
-
+/** @file\r
+\r
+Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>\r
+Portions copyright (c) 2013, ARM Ltd. All rights reserved.<BR>\r
+\r
+This program and the accompanying materials are licensed and made available\r
+under the terms and conditions of the BSD License which accompanies this\r
+distribution. The full text of the license may be found at\r
+http://opensource.org/licenses/bsd-license.php\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include "WinNtInclude.h"\r
+\r
+#ifndef __GNUC__\r
+#include <windows.h>\r
+#include <io.h>\r
+#endif\r
+#include <assert.h>\r
+#include <stdio.h>\r
+#include <stdlib.h>\r
+#include <string.h>\r
+#include <time.h>\r
+#include <ctype.h>\r
+\r
+#include <Common/UefiBaseTypes.h>\r
+#include <IndustryStandard/PeImage.h>\r
+\r
+#include "PeCoffLib.h"\r
+#include "EfiUtilityMsgs.h"\r
+\r
+#include "GenFw.h"\r
+#include "ElfConvert.h"\r
+#include "Elf32Convert.h"\r
+\r
+STATIC\r
+VOID\r
+ScanSections32 (\r
+ VOID\r
+ );\r
+\r
+STATIC\r
+BOOLEAN\r
+WriteSections32 (\r
+ SECTION_FILTER_TYPES FilterType\r
+ );\r
+\r
+STATIC\r
+VOID\r
+WriteRelocations32 (\r
+ VOID\r
+ );\r
+\r
+STATIC\r
+VOID\r
+WriteDebug32 (\r
+ VOID\r
+ );\r
+\r
+STATIC\r
+VOID\r
+SetImageSize32 (\r
+ VOID\r
+ );\r
+\r
+STATIC\r
+VOID\r
+CleanUp32 (\r
+ VOID\r
+ );\r
+\r
+//\r
+// Rename ELF32 strucutres to common names to help when porting to ELF64.\r
+//\r
+typedef Elf32_Shdr Elf_Shdr;\r
+typedef Elf32_Ehdr Elf_Ehdr;\r
+typedef Elf32_Rel Elf_Rel;\r
+typedef Elf32_Sym Elf_Sym;\r
+typedef Elf32_Phdr Elf_Phdr;\r
+typedef Elf32_Dyn Elf_Dyn;\r
+#define ELFCLASS ELFCLASS32\r
+#define ELF_R_TYPE(r) ELF32_R_TYPE(r)\r
+#define ELF_R_SYM(r) ELF32_R_SYM(r)\r
+\r
+//\r
+// Well known ELF structures.\r
+//\r
+STATIC Elf_Ehdr *mEhdr;\r
+STATIC Elf_Shdr *mShdrBase;\r
+STATIC Elf_Phdr *mPhdrBase;\r
+\r
+//\r
+// Coff information\r
+//\r
+STATIC const UINT32 mCoffAlignment = 0x20;\r
+\r
+//\r
+// PE section alignment.\r
+//\r
+STATIC const UINT16 mCoffNbrSections = 5;\r
+\r
+//\r
+// ELF sections to offset in Coff file.\r
+//\r
+STATIC UINT32 *mCoffSectionsOffset = NULL;\r
+\r
+//\r
+// Offsets in COFF file\r
+//\r
+STATIC UINT32 mNtHdrOffset;\r
+STATIC UINT32 mTextOffset;\r
+STATIC UINT32 mDataOffset;\r
+STATIC UINT32 mHiiRsrcOffset;\r
+STATIC UINT32 mRelocOffset;\r
+\r
+//\r
+// Initialization Function\r
+//\r
+BOOLEAN\r
+InitializeElf32 (\r
+ UINT8 *FileBuffer,\r
+ ELF_FUNCTION_TABLE *ElfFunctions\r
+ )\r
+{\r
+ //\r
+ // Initialize data pointer and structures.\r
+ //\r
+ mEhdr = (Elf_Ehdr*) FileBuffer; \r
+\r
+ //\r
+ // Check the ELF32 specific header information.\r
+ //\r
+ if (mEhdr->e_ident[EI_CLASS] != ELFCLASS32) {\r
+ Error (NULL, 0, 3000, "Unsupported", "ELF EI_DATA not ELFCLASS32");\r
+ return FALSE;\r
+ }\r
+ if (mEhdr->e_ident[EI_DATA] != ELFDATA2LSB) {\r
+ Error (NULL, 0, 3000, "Unsupported", "ELF EI_DATA not ELFDATA2LSB");\r
+ return FALSE;\r
+ } \r
+ if ((mEhdr->e_type != ET_EXEC) && (mEhdr->e_type != ET_DYN)) {\r
+ Error (NULL, 0, 3000, "Unsupported", "ELF e_type not ET_EXEC or ET_DYN");\r
+ return FALSE;\r
+ }\r
+ if (!((mEhdr->e_machine == EM_386) || (mEhdr->e_machine == EM_ARM))) { \r
+ Error (NULL, 0, 3000, "Unsupported", "ELF e_machine not EM_386 or EM_ARM");\r
+ return FALSE;\r
+ }\r
+ if (mEhdr->e_version != EV_CURRENT) {\r
+ Error (NULL, 0, 3000, "Unsupported", "ELF e_version (%u) not EV_CURRENT (%d)", (unsigned) mEhdr->e_version, EV_CURRENT);\r
+ return FALSE;\r
+ }\r
+ \r
+ //\r
+ // Update section header pointers\r
+ //\r
+ mShdrBase = (Elf_Shdr *)((UINT8 *)mEhdr + mEhdr->e_shoff);\r
+ mPhdrBase = (Elf_Phdr *)((UINT8 *)mEhdr + mEhdr->e_phoff);\r
+ \r
+ //\r
+ // Create COFF Section offset buffer and zero.\r
+ //\r
+ mCoffSectionsOffset = (UINT32 *)malloc(mEhdr->e_shnum * sizeof (UINT32));\r
+ memset(mCoffSectionsOffset, 0, mEhdr->e_shnum * sizeof(UINT32));\r
+\r
+ //\r
+ // Fill in function pointers.\r
+ //\r
+ ElfFunctions->ScanSections = ScanSections32;\r
+ ElfFunctions->WriteSections = WriteSections32;\r
+ ElfFunctions->WriteRelocations = WriteRelocations32;\r
+ ElfFunctions->WriteDebug = WriteDebug32;\r
+ ElfFunctions->SetImageSize = SetImageSize32;\r
+ ElfFunctions->CleanUp = CleanUp32;\r
+\r
+ return TRUE;\r
+}\r
+\r
+\r
+//\r
+// Header by Index functions\r
+//\r
+STATIC\r
+Elf_Shdr*\r
+GetShdrByIndex (\r
+ UINT32 Num\r
+ )\r
+{\r
+ if (Num >= mEhdr->e_shnum)\r
+ return NULL;\r
+ return (Elf_Shdr*)((UINT8*)mShdrBase + Num * mEhdr->e_shentsize);\r
+}\r
+\r
+STATIC\r
+Elf_Phdr*\r
+GetPhdrByIndex (\r
+ UINT32 num\r
+ )\r
+{\r
+ if (num >= mEhdr->e_phnum) {\r
+ return NULL;\r
+ }\r
+\r
+ return (Elf_Phdr *)((UINT8*)mPhdrBase + num * mEhdr->e_phentsize);\r
+}\r
+\r
+STATIC\r
+UINT32\r
+CoffAlign (\r
+ UINT32 Offset\r
+ )\r
+{\r
+ return (Offset + mCoffAlignment - 1) & ~(mCoffAlignment - 1);\r
+}\r
+\r
+//\r
+// filter functions\r
+//\r
+STATIC\r
+BOOLEAN\r
+IsTextShdr (\r
+ Elf_Shdr *Shdr\r
+ )\r
+{\r
+ return (BOOLEAN) ((Shdr->sh_flags & (SHF_WRITE | SHF_ALLOC)) == SHF_ALLOC);\r
+}\r
+\r
+STATIC\r
+BOOLEAN\r
+IsHiiRsrcShdr (\r
+ Elf_Shdr *Shdr\r
+ )\r
+{\r
+ Elf_Shdr *Namedr = GetShdrByIndex(mEhdr->e_shstrndx);\r
+\r
+ return (BOOLEAN) (strcmp((CHAR8*)mEhdr + Namedr->sh_offset + Shdr->sh_name, ELF_HII_SECTION_NAME) == 0);\r
+}\r
+\r
+STATIC\r
+BOOLEAN\r
+IsDataShdr (\r
+ Elf_Shdr *Shdr\r
+ )\r
+{\r
+ if (IsHiiRsrcShdr(Shdr)) {\r
+ return FALSE;\r
+ }\r
+ return (BOOLEAN) (Shdr->sh_flags & (SHF_WRITE | SHF_ALLOC)) == (SHF_ALLOC | SHF_WRITE);\r
+}\r
+\r
+//\r
+// Elf functions interface implementation\r
+//\r
+\r
+STATIC\r
+VOID\r
+ScanSections32 (\r
+ VOID\r
+ )\r
+{\r
+ UINT32 i;\r
+ EFI_IMAGE_DOS_HEADER *DosHdr;\r
+ EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;\r
+ UINT32 CoffEntry;\r
+ UINT32 SectionCount;\r
+ BOOLEAN FoundText;\r
+\r
+ CoffEntry = 0;\r
+ mCoffOffset = 0;\r
+ mTextOffset = 0;\r
+ FoundText = FALSE;\r
+\r
+ //\r
+ // Coff file start with a DOS header.\r
+ //\r
+ mCoffOffset = sizeof(EFI_IMAGE_DOS_HEADER) + 0x40;\r
+ mNtHdrOffset = mCoffOffset;\r
+ switch (mEhdr->e_machine) {\r
+ case EM_386:\r
+ case EM_ARM:\r
+ mCoffOffset += sizeof (EFI_IMAGE_NT_HEADERS32);\r
+ break;\r
+ default:\r
+ VerboseMsg ("%s unknown e_machine type. Assume IA-32", (UINTN)mEhdr->e_machine);\r
+ mCoffOffset += sizeof (EFI_IMAGE_NT_HEADERS32);\r
+ break;\r
+ }\r
+\r
+ mTableOffset = mCoffOffset;\r
+ mCoffOffset += mCoffNbrSections * sizeof(EFI_IMAGE_SECTION_HEADER);\r
+\r
+ //\r
+ // First text sections.\r
+ //\r
+ mCoffOffset = CoffAlign(mCoffOffset);\r
+ SectionCount = 0;\r
+ for (i = 0; i < mEhdr->e_shnum; i++) {\r
+ Elf_Shdr *shdr = GetShdrByIndex(i);\r
+ if (IsTextShdr(shdr)) {\r
+ if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {\r
+ // the alignment field is valid\r
+ if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {\r
+ // if the section address is aligned we must align PE/COFF\r
+ mCoffOffset = (mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1);\r
+ } else if ((shdr->sh_addr % shdr->sh_addralign) != (mCoffOffset % shdr->sh_addralign)) {\r
+ // ARM RVCT tools have behavior outside of the ELF specification to try\r
+ // and make images smaller. If sh_addr is not aligned to sh_addralign\r
+ // then the section needs to preserve sh_addr MOD sh_addralign.\r
+ // Normally doing nothing here works great.\r
+ Error (NULL, 0, 3000, "Invalid", "Unsupported section alignment.");\r
+ }\r
+ }\r
+\r
+ /* Relocate entry. */\r
+ if ((mEhdr->e_entry >= shdr->sh_addr) &&\r
+ (mEhdr->e_entry < shdr->sh_addr + shdr->sh_size)) {\r
+ CoffEntry = mCoffOffset + mEhdr->e_entry - shdr->sh_addr;\r
+ }\r
+\r
+ //\r
+ // Set mTextOffset with the offset of the first '.text' section\r
+ //\r
+ if (!FoundText) {\r
+ mTextOffset = mCoffOffset;\r
+ FoundText = TRUE;\r
+ }\r
+\r
+ mCoffSectionsOffset[i] = mCoffOffset;\r
+ mCoffOffset += shdr->sh_size;\r
+ SectionCount ++;\r
+ }\r
+ }\r
+\r
+ if (!FoundText) {\r
+ Error (NULL, 0, 3000, "Invalid", "Did not find any '.text' section.");\r
+ assert (FALSE);\r
+ }\r
+\r
+ if (mEhdr->e_machine != EM_ARM) {\r
+ mCoffOffset = CoffAlign(mCoffOffset);\r
+ }\r
+\r
+ if (SectionCount > 1 && mOutImageType == FW_EFI_IMAGE) {\r
+ Warning (NULL, 0, 0, NULL, "Mulitple sections in %s are merged into 1 text section. Source level debug might not work correctly.", mInImageName);\r
+ }\r
+\r
+ //\r
+ // Then data sections.\r
+ //\r
+ mDataOffset = mCoffOffset;\r
+ SectionCount = 0;\r
+ for (i = 0; i < mEhdr->e_shnum; i++) {\r
+ Elf_Shdr *shdr = GetShdrByIndex(i);\r
+ if (IsDataShdr(shdr)) {\r
+ if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {\r
+ // the alignment field is valid\r
+ if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {\r
+ // if the section address is aligned we must align PE/COFF\r
+ mCoffOffset = (mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1);\r
+ } else if ((shdr->sh_addr % shdr->sh_addralign) != (mCoffOffset % shdr->sh_addralign)) {\r
+ // ARM RVCT tools have behavior outside of the ELF specification to try\r
+ // and make images smaller. If sh_addr is not aligned to sh_addralign\r
+ // then the section needs to preserve sh_addr MOD sh_addralign.\r
+ // Normally doing nothing here works great.\r
+ Error (NULL, 0, 3000, "Invalid", "Unsupported section alignment.");\r
+ }\r
+ }\r
+ mCoffSectionsOffset[i] = mCoffOffset;\r
+ mCoffOffset += shdr->sh_size;\r
+ SectionCount ++;\r
+ }\r
+ }\r
+ mCoffOffset = CoffAlign(mCoffOffset);\r
+\r
+ if (SectionCount > 1 && mOutImageType == FW_EFI_IMAGE) {\r
+ Warning (NULL, 0, 0, NULL, "Mulitple sections in %s are merged into 1 data section. Source level debug might not work correctly.", mInImageName);\r
+ }\r
+\r
+ //\r
+ // The HII resource sections.\r
+ //\r
+ mHiiRsrcOffset = mCoffOffset;\r
+ for (i = 0; i < mEhdr->e_shnum; i++) {\r
+ Elf_Shdr *shdr = GetShdrByIndex(i);\r
+ if (IsHiiRsrcShdr(shdr)) {\r
+ if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {\r
+ // the alignment field is valid\r
+ if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {\r
+ // if the section address is aligned we must align PE/COFF\r
+ mCoffOffset = (mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1);\r
+ } else if ((shdr->sh_addr % shdr->sh_addralign) != (mCoffOffset % shdr->sh_addralign)) {\r
+ // ARM RVCT tools have behavior outside of the ELF specification to try\r
+ // and make images smaller. If sh_addr is not aligned to sh_addralign\r
+ // then the section needs to preserve sh_addr MOD sh_addralign.\r
+ // Normally doing nothing here works great.\r
+ Error (NULL, 0, 3000, "Invalid", "Unsupported section alignment.");\r
+ }\r
+ }\r
+ if (shdr->sh_size != 0) {\r
+ mCoffSectionsOffset[i] = mCoffOffset;\r
+ mCoffOffset += shdr->sh_size;\r
+ mCoffOffset = CoffAlign(mCoffOffset);\r
+ SetHiiResourceHeader ((UINT8*) mEhdr + shdr->sh_offset, mHiiRsrcOffset);\r
+ }\r
+ break;\r
+ }\r
+ }\r
+\r
+ mRelocOffset = mCoffOffset;\r
+\r
+ //\r
+ // Allocate base Coff file. Will be expanded later for relocations.\r
+ //\r
+ mCoffFile = (UINT8 *)malloc(mCoffOffset);\r
+ memset(mCoffFile, 0, mCoffOffset);\r
+\r
+ //\r
+ // Fill headers.\r
+ //\r
+ DosHdr = (EFI_IMAGE_DOS_HEADER *)mCoffFile;\r
+ DosHdr->e_magic = EFI_IMAGE_DOS_SIGNATURE;\r
+ DosHdr->e_lfanew = mNtHdrOffset;\r
+\r
+ NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION*)(mCoffFile + mNtHdrOffset);\r
+\r
+ NtHdr->Pe32.Signature = EFI_IMAGE_NT_SIGNATURE;\r
+\r
+ switch (mEhdr->e_machine) {\r
+ case EM_386:\r
+ NtHdr->Pe32.FileHeader.Machine = EFI_IMAGE_MACHINE_IA32;\r
+ NtHdr->Pe32.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;\r
+ break;\r
+ case EM_ARM:\r
+ NtHdr->Pe32.FileHeader.Machine = EFI_IMAGE_MACHINE_ARMT;\r
+ NtHdr->Pe32.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;\r
+ break;\r
+ default:\r
+ VerboseMsg ("%s unknown e_machine type. Assume IA-32", (UINTN)mEhdr->e_machine);\r
+ NtHdr->Pe32.FileHeader.Machine = EFI_IMAGE_MACHINE_IA32;\r
+ NtHdr->Pe32.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;\r
+ }\r
+\r
+ NtHdr->Pe32.FileHeader.NumberOfSections = mCoffNbrSections;\r
+ NtHdr->Pe32.FileHeader.TimeDateStamp = (UINT32) time(NULL);\r
+ mImageTimeStamp = NtHdr->Pe32.FileHeader.TimeDateStamp;\r
+ NtHdr->Pe32.FileHeader.PointerToSymbolTable = 0;\r
+ NtHdr->Pe32.FileHeader.NumberOfSymbols = 0;\r
+ NtHdr->Pe32.FileHeader.SizeOfOptionalHeader = sizeof(NtHdr->Pe32.OptionalHeader);\r
+ NtHdr->Pe32.FileHeader.Characteristics = EFI_IMAGE_FILE_EXECUTABLE_IMAGE\r
+ | EFI_IMAGE_FILE_LINE_NUMS_STRIPPED\r
+ | EFI_IMAGE_FILE_LOCAL_SYMS_STRIPPED\r
+ | EFI_IMAGE_FILE_32BIT_MACHINE;\r
+\r
+ NtHdr->Pe32.OptionalHeader.SizeOfCode = mDataOffset - mTextOffset;\r
+ NtHdr->Pe32.OptionalHeader.SizeOfInitializedData = mRelocOffset - mDataOffset;\r
+ NtHdr->Pe32.OptionalHeader.SizeOfUninitializedData = 0;\r
+ NtHdr->Pe32.OptionalHeader.AddressOfEntryPoint = CoffEntry;\r
+\r
+ NtHdr->Pe32.OptionalHeader.BaseOfCode = mTextOffset;\r
+\r
+ NtHdr->Pe32.OptionalHeader.BaseOfData = mDataOffset;\r
+ NtHdr->Pe32.OptionalHeader.ImageBase = 0;\r
+ NtHdr->Pe32.OptionalHeader.SectionAlignment = mCoffAlignment;\r
+ NtHdr->Pe32.OptionalHeader.FileAlignment = mCoffAlignment;\r
+ NtHdr->Pe32.OptionalHeader.SizeOfImage = 0;\r
+\r
+ NtHdr->Pe32.OptionalHeader.SizeOfHeaders = mTextOffset;\r
+ NtHdr->Pe32.OptionalHeader.NumberOfRvaAndSizes = EFI_IMAGE_NUMBER_OF_DIRECTORY_ENTRIES;\r
+\r
+ //\r
+ // Section headers.\r
+ //\r
+ if ((mDataOffset - mTextOffset) > 0) {\r
+ CreateSectionHeader (".text", mTextOffset, mDataOffset - mTextOffset,\r
+ EFI_IMAGE_SCN_CNT_CODE\r
+ | EFI_IMAGE_SCN_MEM_EXECUTE\r
+ | EFI_IMAGE_SCN_MEM_READ);\r
+ } else {\r
+ // Don't make a section of size 0.\r
+ NtHdr->Pe32.FileHeader.NumberOfSections--;\r
+ }\r
+\r
+ if ((mHiiRsrcOffset - mDataOffset) > 0) {\r
+ CreateSectionHeader (".data", mDataOffset, mHiiRsrcOffset - mDataOffset,\r
+ EFI_IMAGE_SCN_CNT_INITIALIZED_DATA\r
+ | EFI_IMAGE_SCN_MEM_WRITE\r
+ | EFI_IMAGE_SCN_MEM_READ);\r
+ } else {\r
+ // Don't make a section of size 0.\r
+ NtHdr->Pe32.FileHeader.NumberOfSections--;\r
+ }\r
+\r
+ if ((mRelocOffset - mHiiRsrcOffset) > 0) {\r
+ CreateSectionHeader (".rsrc", mHiiRsrcOffset, mRelocOffset - mHiiRsrcOffset,\r
+ EFI_IMAGE_SCN_CNT_INITIALIZED_DATA\r
+ | EFI_IMAGE_SCN_MEM_READ);\r
+\r
+ NtHdr->Pe32.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_RESOURCE].Size = mRelocOffset - mHiiRsrcOffset;\r
+ NtHdr->Pe32.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress = mHiiRsrcOffset;\r
+ } else {\r
+ // Don't make a section of size 0.\r
+ NtHdr->Pe32.FileHeader.NumberOfSections--;\r
+ }\r
+\r
+}\r
+\r
+STATIC\r
+BOOLEAN\r
+WriteSections32 (\r
+ SECTION_FILTER_TYPES FilterType\r
+ )\r
+{\r
+ UINT32 Idx;\r
+ Elf_Shdr *SecShdr;\r
+ UINT32 SecOffset;\r
+ BOOLEAN (*Filter)(Elf_Shdr *);\r
+\r
+ //\r
+ // Initialize filter pointer\r
+ //\r
+ switch (FilterType) {\r
+ case SECTION_TEXT:\r
+ Filter = IsTextShdr;\r
+ break;\r
+ case SECTION_HII:\r
+ Filter = IsHiiRsrcShdr;\r
+ break;\r
+ case SECTION_DATA:\r
+ Filter = IsDataShdr;\r
+ break;\r
+ default:\r
+ return FALSE;\r
+ }\r
+\r
+ //\r
+ // First: copy sections.\r
+ //\r
+ for (Idx = 0; Idx < mEhdr->e_shnum; Idx++) {\r
+ Elf_Shdr *Shdr = GetShdrByIndex(Idx);\r
+ if ((*Filter)(Shdr)) {\r
+ switch (Shdr->sh_type) {\r
+ case SHT_PROGBITS:\r
+ /* Copy. */\r
+ memcpy(mCoffFile + mCoffSectionsOffset[Idx],\r
+ (UINT8*)mEhdr + Shdr->sh_offset,\r
+ Shdr->sh_size);\r
+ break;\r
+\r
+ case SHT_NOBITS:\r
+ memset(mCoffFile + mCoffSectionsOffset[Idx], 0, Shdr->sh_size);\r
+ break;\r
+\r
+ default:\r
+ //\r
+ // Ignore for unkown section type.\r
+ //\r
+ VerboseMsg ("%s unknown section type %x. We directly copy this section into Coff file", mInImageName, (unsigned)Shdr->sh_type);\r
+ break;\r
+ }\r
+ }\r
+ }\r
+\r
+ //\r
+ // Second: apply relocations.\r
+ //\r
+ for (Idx = 0; Idx < mEhdr->e_shnum; Idx++) {\r
+ //\r
+ // Determine if this is a relocation section.\r
+ //\r
+ Elf_Shdr *RelShdr = GetShdrByIndex(Idx);\r
+ if ((RelShdr->sh_type != SHT_REL) && (RelShdr->sh_type != SHT_RELA)) {\r
+ continue;\r
+ }\r
+ \r
+ //\r
+ // Relocation section found. Now extract section information that the relocations\r
+ // apply to in the ELF data and the new COFF data.\r
+ //\r
+ SecShdr = GetShdrByIndex(RelShdr->sh_info);\r
+ SecOffset = mCoffSectionsOffset[RelShdr->sh_info];\r
+ \r
+ //\r
+ // Only process relocations for the current filter type.\r
+ //\r
+ if (RelShdr->sh_type == SHT_REL && (*Filter)(SecShdr)) {\r
+ UINT32 RelOffset;\r
+ \r
+ //\r
+ // Determine the symbol table referenced by the relocation data.\r
+ //\r
+ Elf_Shdr *SymtabShdr = GetShdrByIndex(RelShdr->sh_link);\r
+ UINT8 *Symtab = (UINT8*)mEhdr + SymtabShdr->sh_offset;\r
+\r
+ //\r
+ // Process all relocation entries for this section.\r
+ //\r
+ for (RelOffset = 0; RelOffset < RelShdr->sh_size; RelOffset += RelShdr->sh_entsize) {\r
+ //\r
+ // Set pointer to relocation entry\r
+ //\r
+ Elf_Rel *Rel = (Elf_Rel *)((UINT8*)mEhdr + RelShdr->sh_offset + RelOffset);\r
+ \r
+ //\r
+ // Set pointer to symbol table entry associated with the relocation entry.\r
+ //\r
+ Elf_Sym *Sym = (Elf_Sym *)(Symtab + ELF_R_SYM(Rel->r_info) * SymtabShdr->sh_entsize);\r
+ \r
+ Elf_Shdr *SymShdr;\r
+ UINT8 *Targ;\r
+ UINT16 Address;\r
+\r
+ //\r
+ // Check section header index found in symbol table and get the section \r
+ // header location.\r
+ //\r
+ if (Sym->st_shndx == SHN_UNDEF\r
+ || Sym->st_shndx == SHN_ABS\r
+ || Sym->st_shndx > mEhdr->e_shnum) {\r
+ Error (NULL, 0, 3000, "Invalid", "%s bad symbol definition.", mInImageName);\r
+ }\r
+ SymShdr = GetShdrByIndex(Sym->st_shndx);\r
+\r
+ //\r
+ // Convert the relocation data to a pointer into the coff file.\r
+ //\r
+ // Note: \r
+ // r_offset is the virtual address of the storage unit to be relocated.\r
+ // sh_addr is the virtual address for the base of the section.\r
+ //\r
+ Targ = mCoffFile + SecOffset + (Rel->r_offset - SecShdr->sh_addr);\r
+\r
+ //\r
+ // Determine how to handle each relocation type based on the machine type.\r
+ //\r
+ if (mEhdr->e_machine == EM_386) {\r
+ switch (ELF_R_TYPE(Rel->r_info)) {\r
+ case R_386_NONE:\r
+ break;\r
+ case R_386_32:\r
+ //\r
+ // Absolute relocation.\r
+ // Converts Targ from a absolute virtual address to the absolute\r
+ // COFF address.\r
+ //\r
+ *(UINT32 *)Targ = *(UINT32 *)Targ - SymShdr->sh_addr\r
+ + mCoffSectionsOffset[Sym->st_shndx];\r
+ break;\r
+ case R_386_PC32:\r
+ //\r
+ // Relative relocation: Symbol - Ip + Addend\r
+ //\r
+ *(UINT32 *)Targ = *(UINT32 *)Targ\r
+ + (mCoffSectionsOffset[Sym->st_shndx] - SymShdr->sh_addr)\r
+ - (SecOffset - SecShdr->sh_addr);\r
+ break;\r
+ default:\r
+ Error (NULL, 0, 3000, "Invalid", "%s unsupported ELF EM_386 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));\r
+ }\r
+ } else if (mEhdr->e_machine == EM_ARM) {\r
+ switch (ELF32_R_TYPE(Rel->r_info)) {\r
+ case R_ARM_RBASE:\r
+ // No relocation - no action required\r
+ // break skipped\r
+\r
+ case R_ARM_PC24:\r
+ case R_ARM_XPC25:\r
+ case R_ARM_THM_PC22:\r
+ case R_ARM_THM_JUMP19:\r
+ case R_ARM_CALL:\r
+ case R_ARM_JMP24:\r
+ case R_ARM_THM_JUMP24: \r
+ case R_ARM_PREL31: \r
+ case R_ARM_MOVW_PREL_NC: \r
+ case R_ARM_MOVT_PREL:\r
+ case R_ARM_THM_MOVW_PREL_NC:\r
+ case R_ARM_THM_MOVT_PREL:\r
+ case R_ARM_THM_JMP6:\r
+ case R_ARM_THM_ALU_PREL_11_0:\r
+ case R_ARM_THM_PC12:\r
+ case R_ARM_REL32_NOI:\r
+ case R_ARM_ALU_PC_G0_NC:\r
+ case R_ARM_ALU_PC_G0:\r
+ case R_ARM_ALU_PC_G1_NC:\r
+ case R_ARM_ALU_PC_G1:\r
+ case R_ARM_ALU_PC_G2:\r
+ case R_ARM_LDR_PC_G1:\r
+ case R_ARM_LDR_PC_G2:\r
+ case R_ARM_LDRS_PC_G0:\r
+ case R_ARM_LDRS_PC_G1:\r
+ case R_ARM_LDRS_PC_G2:\r
+ case R_ARM_LDC_PC_G0:\r
+ case R_ARM_LDC_PC_G1:\r
+ case R_ARM_LDC_PC_G2:\r
+ case R_ARM_GOT_PREL:\r
+ case R_ARM_THM_JUMP11:\r
+ case R_ARM_THM_JUMP8:\r
+ case R_ARM_TLS_GD32:\r
+ case R_ARM_TLS_LDM32:\r
+ case R_ARM_TLS_IE32:\r
+ // Thease are all PC-relative relocations and don't require modification\r
+ // GCC does not seem to have the concept of a application that just needs to get relocated.\r
+ break;\r
+\r
+ case R_ARM_THM_MOVW_ABS_NC:\r
+ // MOVW is only lower 16-bits of the addres\r
+ Address = (UINT16)(Sym->st_value - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx]);\r
+ ThumbMovtImmediatePatch ((UINT16 *)Targ, Address);\r
+ break;\r
+\r
+ case R_ARM_THM_MOVT_ABS:\r
+ // MOVT is only upper 16-bits of the addres\r
+ Address = (UINT16)((Sym->st_value - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx]) >> 16);\r
+ ThumbMovtImmediatePatch ((UINT16 *)Targ, Address);\r
+ break;\r
+\r
+ case R_ARM_ABS32:\r
+ case R_ARM_RABS32:\r
+ //\r
+ // Absolute relocation.\r
+ //\r
+ *(UINT32 *)Targ = *(UINT32 *)Targ - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx];\r
+ break;\r
+\r
+ default:\r
+ Error (NULL, 0, 3000, "Invalid", "WriteSections (): %s unsupported ELF EM_ARM relocation 0x%x.", mInImageName, (unsigned) ELF32_R_TYPE(Rel->r_info));\r
+ }\r
+ }\r
+ }\r
+ }\r
+ }\r
+\r
+ return TRUE;\r
+}\r
+\r
+UINTN gMovwOffset = 0;\r
+\r
+STATIC\r
+VOID\r
+WriteRelocations32 (\r
+ VOID\r
+ )\r
+{\r
+ UINT32 Index;\r
+ EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;\r
+ EFI_IMAGE_DATA_DIRECTORY *Dir;\r
+ BOOLEAN FoundRelocations;\r
+ Elf_Dyn *Dyn;\r
+ Elf_Rel *Rel;\r
+ UINTN RelElementSize;\r
+ UINTN RelSize;\r
+ UINTN RelOffset;\r
+ UINTN K;\r
+ UINT8 *Targ;\r
+ Elf32_Phdr *DynamicSegment;\r
+ Elf32_Phdr *TargetSegment;\r
+\r
+ for (Index = 0, FoundRelocations = FALSE; Index < mEhdr->e_shnum; Index++) {\r
+ Elf_Shdr *RelShdr = GetShdrByIndex(Index);\r
+ if ((RelShdr->sh_type == SHT_REL) || (RelShdr->sh_type == SHT_RELA)) {\r
+ Elf_Shdr *SecShdr = GetShdrByIndex (RelShdr->sh_info);\r
+ if (IsTextShdr(SecShdr) || IsDataShdr(SecShdr)) {\r
+ UINT32 RelIdx;\r
+\r
+ FoundRelocations = TRUE;\r
+ for (RelIdx = 0; RelIdx < RelShdr->sh_size; RelIdx += RelShdr->sh_entsize) {\r
+ Elf_Rel *Rel = (Elf_Rel *)((UINT8*)mEhdr + RelShdr->sh_offset + RelIdx);\r
+\r
+ if (mEhdr->e_machine == EM_386) { \r
+ switch (ELF_R_TYPE(Rel->r_info)) {\r
+ case R_386_NONE:\r
+ case R_386_PC32:\r
+ //\r
+ // No fixup entry required.\r
+ //\r
+ break;\r
+ case R_386_32:\r
+ //\r
+ // Creates a relative relocation entry from the absolute entry.\r
+ //\r
+ CoffAddFixup(mCoffSectionsOffset[RelShdr->sh_info]\r
+ + (Rel->r_offset - SecShdr->sh_addr),\r
+ EFI_IMAGE_REL_BASED_HIGHLOW);\r
+ break;\r
+ default:\r
+ Error (NULL, 0, 3000, "Invalid", "%s unsupported ELF EM_386 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));\r
+ }\r
+ } else if (mEhdr->e_machine == EM_ARM) {\r
+ switch (ELF32_R_TYPE(Rel->r_info)) {\r
+ case R_ARM_RBASE:\r
+ // No relocation - no action required\r
+ // break skipped\r
+\r
+ case R_ARM_PC24:\r
+ case R_ARM_XPC25:\r
+ case R_ARM_THM_PC22:\r
+ case R_ARM_THM_JUMP19:\r
+ case R_ARM_CALL:\r
+ case R_ARM_JMP24:\r
+ case R_ARM_THM_JUMP24: \r
+ case R_ARM_PREL31: \r
+ case R_ARM_MOVW_PREL_NC: \r
+ case R_ARM_MOVT_PREL:\r
+ case R_ARM_THM_MOVW_PREL_NC:\r
+ case R_ARM_THM_MOVT_PREL:\r
+ case R_ARM_THM_JMP6:\r
+ case R_ARM_THM_ALU_PREL_11_0:\r
+ case R_ARM_THM_PC12:\r
+ case R_ARM_REL32_NOI:\r
+ case R_ARM_ALU_PC_G0_NC:\r
+ case R_ARM_ALU_PC_G0:\r
+ case R_ARM_ALU_PC_G1_NC:\r
+ case R_ARM_ALU_PC_G1:\r
+ case R_ARM_ALU_PC_G2:\r
+ case R_ARM_LDR_PC_G1:\r
+ case R_ARM_LDR_PC_G2:\r
+ case R_ARM_LDRS_PC_G0:\r
+ case R_ARM_LDRS_PC_G1:\r
+ case R_ARM_LDRS_PC_G2:\r
+ case R_ARM_LDC_PC_G0:\r
+ case R_ARM_LDC_PC_G1:\r
+ case R_ARM_LDC_PC_G2:\r
+ case R_ARM_GOT_PREL:\r
+ case R_ARM_THM_JUMP11:\r
+ case R_ARM_THM_JUMP8:\r
+ case R_ARM_TLS_GD32:\r
+ case R_ARM_TLS_LDM32:\r
+ case R_ARM_TLS_IE32:\r
+ // Thease are all PC-relative relocations and don't require modification\r
+ break;\r
+\r
+ case R_ARM_THM_MOVW_ABS_NC:\r
+ CoffAddFixup (\r
+ mCoffSectionsOffset[RelShdr->sh_info]\r
+ + (Rel->r_offset - SecShdr->sh_addr),\r
+ EFI_IMAGE_REL_BASED_ARM_MOV32T\r
+ );\r
+\r
+ // PE/COFF treats MOVW/MOVT relocation as single 64-bit instruction\r
+ // Track this address so we can log an error for unsupported sequence of MOVW/MOVT\r
+ gMovwOffset = mCoffSectionsOffset[RelShdr->sh_info] + (Rel->r_offset - SecShdr->sh_addr);\r
+ break;\r
+\r
+ case R_ARM_THM_MOVT_ABS:\r
+ if ((gMovwOffset + 4) != (mCoffSectionsOffset[RelShdr->sh_info] + (Rel->r_offset - SecShdr->sh_addr))) {\r
+ Error (NULL, 0, 3000, "Not Supported", "PE/COFF requires MOVW+MOVT instruction sequence %x +4 != %x.", gMovwOffset, mCoffSectionsOffset[RelShdr->sh_info] + (Rel->r_offset - SecShdr->sh_addr));\r
+ }\r
+ break;\r
+\r
+ case R_ARM_ABS32:\r
+ case R_ARM_RABS32:\r
+ CoffAddFixup (\r
+ mCoffSectionsOffset[RelShdr->sh_info]\r
+ + (Rel->r_offset - SecShdr->sh_addr),\r
+ EFI_IMAGE_REL_BASED_HIGHLOW\r
+ );\r
+ break;\r
+\r
+ default:\r
+ Error (NULL, 0, 3000, "Invalid", "WriteRelocations(): %s unsupported ELF EM_ARM relocation 0x%x.", mInImageName, (unsigned) ELF32_R_TYPE(Rel->r_info));\r
+ }\r
+ } else {\r
+ Error (NULL, 0, 3000, "Not Supported", "This tool does not support relocations for ELF with e_machine %u (processor type).", (unsigned) mEhdr->e_machine);\r
+ }\r
+ }\r
+ }\r
+ }\r
+ }\r
+\r
+ if (!FoundRelocations && (mEhdr->e_machine == EM_ARM)) {\r
+ /* Try again, but look for PT_DYNAMIC instead of SHT_REL */\r
+\r
+ for (Index = 0; Index < mEhdr->e_phnum; Index++) {\r
+ RelElementSize = 0;\r
+ RelSize = 0;\r
+ RelOffset = 0;\r
+\r
+ DynamicSegment = GetPhdrByIndex (Index);\r
+\r
+ if (DynamicSegment->p_type == PT_DYNAMIC) {\r
+ Dyn = (Elf32_Dyn *) ((UINT8 *)mEhdr + DynamicSegment->p_offset);\r
+\r
+ while (Dyn->d_tag != DT_NULL) {\r
+ switch (Dyn->d_tag) {\r
+ case DT_REL:\r
+ RelOffset = Dyn->d_un.d_val;\r
+ break;\r
+\r
+ case DT_RELSZ:\r
+ RelSize = Dyn->d_un.d_val;\r
+ break;\r
+\r
+ case DT_RELENT:\r
+ RelElementSize = Dyn->d_un.d_val;\r
+ break;\r
+\r
+ default:\r
+ break;\r
+ }\r
+ Dyn++;\r
+ }\r
+ if (( RelOffset == 0 ) || ( RelSize == 0 ) || ( RelElementSize == 0 )) {\r
+ Error (NULL, 0, 3000, "Invalid", "%s bad ARM dynamic relocations.", mInImageName);\r
+ }\r
+\r
+ for (K = 0; K < RelSize; K += RelElementSize) {\r
+\r
+ if (DynamicSegment->p_paddr == 0) {\r
+ // Older versions of the ARM ELF (SWS ESPC 0003 B-02) specification define DT_REL\r
+ // as an offset in the dynamic segment. p_paddr is defined to be zero for ARM tools\r
+ Rel = (Elf32_Rel *) ((UINT8 *) mEhdr + DynamicSegment->p_offset + RelOffset + K);\r
+ } else {\r
+ // This is how it reads in the generic ELF specification\r
+ Rel = (Elf32_Rel *) ((UINT8 *) mEhdr + RelOffset + K);\r
+ }\r
+\r
+ switch (ELF32_R_TYPE (Rel->r_info)) {\r
+ case R_ARM_RBASE:\r
+ break;\r
+\r
+ case R_ARM_RABS32:\r
+ TargetSegment = GetPhdrByIndex (ELF32_R_SYM (Rel->r_info) - 1);\r
+\r
+ // Note: r_offset in a memory address. Convert it to a pointer in the coff file.\r
+ Targ = mCoffFile + mCoffSectionsOffset[ ELF32_R_SYM( Rel->r_info ) ] + Rel->r_offset - TargetSegment->p_vaddr;\r
+\r
+ *(UINT32 *)Targ = *(UINT32 *)Targ + mCoffSectionsOffset [ELF32_R_SYM( Rel->r_info )];\r
+\r
+ CoffAddFixup (mCoffSectionsOffset[ELF32_R_SYM (Rel->r_info)] + (Rel->r_offset - TargetSegment->p_vaddr), EFI_IMAGE_REL_BASED_HIGHLOW);\r
+ break;\r
+ \r
+ default:\r
+ Error (NULL, 0, 3000, "Invalid", "%s bad ARM dynamic relocations, unkown type %d.", mInImageName, ELF32_R_TYPE (Rel->r_info));\r
+ break;\r
+ }\r
+ }\r
+ break;\r
+ }\r
+ }\r
+ }\r
+\r
+ //\r
+ // Pad by adding empty entries.\r
+ //\r
+ while (mCoffOffset & (mCoffAlignment - 1)) {\r
+ CoffAddFixupEntry(0);\r
+ }\r
+\r
+ NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);\r
+ Dir = &NtHdr->Pe32.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r
+ Dir->Size = mCoffOffset - mRelocOffset;\r
+ if (Dir->Size == 0) {\r
+ // If no relocations, null out the directory entry and don't add the .reloc section\r
+ Dir->VirtualAddress = 0;\r
+ NtHdr->Pe32.FileHeader.NumberOfSections--;\r
+ } else {\r
+ Dir->VirtualAddress = mRelocOffset;\r
+ CreateSectionHeader (".reloc", mRelocOffset, mCoffOffset - mRelocOffset,\r
+ EFI_IMAGE_SCN_CNT_INITIALIZED_DATA\r
+ | EFI_IMAGE_SCN_MEM_DISCARDABLE\r
+ | EFI_IMAGE_SCN_MEM_READ);\r
+ }\r
+\r
+}\r
+\r
+STATIC\r
+VOID\r
+WriteDebug32 (\r
+ VOID\r
+ )\r
+{\r
+ UINT32 Len;\r
+ UINT32 DebugOffset;\r
+ EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;\r
+ EFI_IMAGE_DATA_DIRECTORY *DataDir;\r
+ EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *Dir;\r
+ EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY *Nb10;\r
+\r
+ Len = strlen(mInImageName) + 1;\r
+ DebugOffset = mCoffOffset;\r
+\r
+ mCoffOffset += sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY)\r
+ + sizeof(EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY)\r
+ + Len;\r
+ mCoffOffset = CoffAlign(mCoffOffset);\r
+\r
+ mCoffFile = realloc(mCoffFile, mCoffOffset);\r
+ memset(mCoffFile + DebugOffset, 0, mCoffOffset - DebugOffset);\r
+\r
+ Dir = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY*)(mCoffFile + DebugOffset);\r
+ Dir->Type = EFI_IMAGE_DEBUG_TYPE_CODEVIEW;\r
+ Dir->SizeOfData = sizeof(EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY) + Len;\r
+ Dir->RVA = DebugOffset + sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);\r
+ Dir->FileOffset = DebugOffset + sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);\r
+\r
+ Nb10 = (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY*)(Dir + 1);\r
+ Nb10->Signature = CODEVIEW_SIGNATURE_NB10;\r
+ strcpy ((char *)(Nb10 + 1), mInImageName);\r
+\r
+\r
+ NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);\r
+ DataDir = &NtHdr->Pe32.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG];\r
+ DataDir->VirtualAddress = DebugOffset;\r
+ DataDir->Size = mCoffOffset - DebugOffset;\r
+ if (DataDir->Size == 0) {\r
+ // If no debug, null out the directory entry and don't add the .debug section\r
+ DataDir->VirtualAddress = 0;\r
+ NtHdr->Pe32.FileHeader.NumberOfSections--;\r
+ } else {\r
+ DataDir->VirtualAddress = DebugOffset;\r
+ CreateSectionHeader (".debug", DebugOffset, mCoffOffset - DebugOffset,\r
+ EFI_IMAGE_SCN_CNT_INITIALIZED_DATA\r
+ | EFI_IMAGE_SCN_MEM_DISCARDABLE\r
+ | EFI_IMAGE_SCN_MEM_READ);\r
+\r
+ }\r
+}\r
+\r
+STATIC\r
+VOID\r
+SetImageSize32 (\r
+ VOID\r
+ )\r
+{\r
+ EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;\r
+ \r
+ //\r
+ // Set image size\r
+ //\r
+ NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);\r
+ NtHdr->Pe32.OptionalHeader.SizeOfImage = mCoffOffset;\r
+}\r
+\r
+STATIC\r
+VOID\r
+CleanUp32 (\r
+ VOID\r
+ )\r
+{\r
+ if (mCoffSectionsOffset != NULL) {\r
+ free (mCoffSectionsOffset);\r
+ }\r
+}\r
+\r
+\r
projects / mirror_edk2.git / blobdiff