From b69c9d41e89498442cb5af5287f378b3583dd445 Mon Sep 17 00:00:00 2001 From: Tamar Christina Date: Tue, 23 Nov 2021 09:36:39 +0000 Subject: AArch64: Add support for AArch64 EFI (efi-*-aarch64). This adds support for efi-*-aarch64 by virtue of adding a new PEI target pei-aarch64-little. This is not a full target and only exists to support EFI at this time. This means that this target does not support relocation processing and is mostly a container format. This format has been added to elf based aarch64 targets such that efi images can be made natively on Linux. However this target is not valid for use with gas but only with objcopy. With these changes the resulting file is recognized as an efi image by third party tools: > pecli info hello.efi Metadata ================================================================================ MD5: 598c32a778b0f0deebe977fef8578c4e SHA1: 4580121edd5cb4dc40f51b28f171fd15250df84c SHA256: 3154bd7cf42433d1c957f6bf55a17ad8c57ed41b29df2d485703349fd6ff1d5c Imphash: Size: 47561 bytes Type: PE32+ executable (EFI application) (stripped to external PDB), for MS Windows Compile Time: 1970-01-01 00:00:00 (UTC - 0x0 ) Entry point: 0x2000 (section .text) Sections ================================================================================ Name RWX VirtSize VirtAddr RawAddr RawSize Entropy md5 .text R-X 0x5bb0 0x2000 0x400 0x5c00 6.39 551fbc264256a3f387de8a891500ae0d .reloc R-- 0xc 0x8000 0x6000 0x200 0.02 0c45f6d812d079821c1d54c09ab89e1d .data RW- 0x1d88 0x9000 0x6200 0x1e00 4.18 5d1137c09f01289dc62bf754f7290db3 .dynamic RW- 0xf0 0xb000 0x8000 0x200 0.34 5c94ed3206f05a277e6f04fbf131f131 .rela R-- 0xe58 0xc000 0x8200 0x1000 1.87 8b5c6bc30f3acb7ca7bf2e6789d68519 .dynsym R-- 0x138 0xd000 0x9200 0x200 0.96 bdcf5101da51aadc663ca8859f88138c Imports ================================================================================ Any magic number is based on the Microsoft PE specification [1]. [1] https://docs.microsoft.com/en-us/windows/win32/debug/pe-format bfd/ChangeLog: 2021-10-21 Tamar Christina PR binutils/26206 * .gitignore (pe-aarch64igen.c): New. * Makefile.am (pei-aarch64.lo, pe-aarch64igen.lo, pei-aarch64.c, pe-aarch64igen.c): Add support. * Makefile.in: Likewise. * bfd.c (bfd_get_sign_extend_vma): Add pei-aarch64-little. * coff-aarch64.c: New file. * coffcode.h (coff_set_arch_mach_hook, coff_set_flags, coff_write_object_contents) Add aarch64 (aarch64_pei_vec) support. * config.bfd: Likewise. * configure: Likewise. * configure.ac: Likewise. * libpei.h (GET_OPTHDR_IMAGE_BASE, PUT_OPTHDR_IMAGE_BASE, GET_OPTHDR_SIZE_OF_STACK_RESERVE, PUT_OPTHDR_SIZE_OF_STACK_RESERVE, GET_OPTHDR_SIZE_OF_STACK_COMMIT, PUT_OPTHDR_SIZE_OF_STACK_COMMIT, GET_OPTHDR_SIZE_OF_HEAP_RESERVE, PUT_OPTHDR_SIZE_OF_HEAP_RESERVE, GET_OPTHDR_SIZE_OF_HEAP_COMMIT, PUT_OPTHDR_SIZE_OF_HEAP_COMMIT, GET_PDATA_ENTRY, _bfd_peAArch64_bfd_copy_private_bfd_data_common, _bfd_peAArch64_bfd_copy_private_section_data, _bfd_peAArch64_get_symbol_info, _bfd_peAArch64_only_swap_filehdr_out, _bfd_peAArch64_print_private_bfd_data_common, _bfd_peAArch64i_final_link_postscript, _bfd_peAArch64i_only_swap_filehdr_out, _bfd_peAArch64i_swap_aouthdr_in, _bfd_peAArch64i_swap_aouthdr_out, _bfd_peAArch64i_swap_aux_in, _bfd_peAArch64i_swap_aux_out, _bfd_peAArch64i_swap_lineno_in, _bfd_peAArch64i_swap_lineno_out, _bfd_peAArch64i_swap_scnhdr_out, _bfd_peAArch64i_swap_sym_in, _bfd_peAArch64i_swap_sym_out, _bfd_peAArch64i_swap_debugdir_in, _bfd_peAArch64i_swap_debugdir_out, _bfd_peAArch64i_write_codeview_record, _bfd_peAArch64i_slurp_codeview_record, _bfd_peAArch64_print_ce_compressed_pdata): New. * peXXigen.c (_bfd_XXi_swap_aouthdr_in, _bfd_XXi_swap_aouthdr_out, pe_print_pdata, _bfd_XX_print_private_bfd_data_common, _bfd_XX_bfd_copy_private_section_data, _bfd_XXi_final_link_postscript): Support COFF_WITH_peAArch64, * pei-aarch64.c: New file. * peicode.h (coff_swap_scnhdr_in, pe_ILF_build_a_bfd, pe_ILF_object_p): Support COFF_WITH_peAArch64. (jtab): Add dummy entry that traps. * targets.c (aarch64_pei_vec): New. binutils/ChangeLog: 2021-10-21 Tamar Christina PR binutils/26206 * NEWS: Add new support. * objcopy.c (convert_efi_target): Add efi-*-aarch64 support. * testsuite/binutils-all/aarch64/pei-aarch64-little.d: New test. * testsuite/binutils-all/aarch64/pei-aarch64-little.s: New test. include/ChangeLog: 2021-10-21 Tamar Christina PR binutils/26206 * coff/aarch64.h: New file. * coff/pe.h (IMAGE_FILE_MACHINE_ARM64): New. --- include/coff/aarch64.h | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++ include/coff/pe.h | 1 + 2 files changed, 64 insertions(+) create mode 100644 include/coff/aarch64.h (limited to 'include/coff') diff --git a/include/coff/aarch64.h b/include/coff/aarch64.h new file mode 100644 index 0000000..2c21f0d --- /dev/null +++ b/include/coff/aarch64.h @@ -0,0 +1,63 @@ +/* AArch64 COFF support for BFD. + Copyright (C) 2021 Free Software Foundation, Inc. + + This file is part of BFD, the Binary File Descriptor library. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ + +#define COFFAARCH64 1 + +#define L_LNNO_SIZE 2 +#define INCLUDE_COMDAT_FIELDS_IN_AUXENT +#include "coff/external.h" + +#define F_AARCH64_ARCHITECTURE_MASK (0x4000) + +#define AARCH64MAGIC 0xaa64 /* From Microsoft specification. */ + +#undef BADMAG +#define BADMAG(x) ((x).f_magic != AARCH64MAGIC) +#define AARCH64 1 /* Customize coffcode.h. */ + +#define IMAGE_NT_OPTIONAL_HDR64_MAGIC 0x20b + +#define OMAGIC 0404 /* Object files, eg as output. */ +#define ZMAGIC IMAGE_NT_OPTIONAL_HDR64_MAGIC /* Demand load format, eg normal ld output 0x10b. */ +#define STMAGIC 0401 /* Target shlib. */ +#define SHMAGIC 0443 /* Host shlib. */ + +/* define some NT default values */ +/* #define NT_IMAGE_BASE 0x400000 moved to internal.h */ +#define NT_SECTION_ALIGNMENT 0x1000 +#define NT_FILE_ALIGNMENT 0x200 +#define NT_DEF_RESERVE 0x100000 +#define NT_DEF_COMMIT 0x1000 + +/* We use the .rdata section to hold read only data. */ +#define _LIT ".rdata" + +/********************** RELOCATION DIRECTIVES **********************/ +struct external_reloc +{ + char r_vaddr[4]; + char r_symndx[4]; + char r_type[2]; + char r_offset[4]; +}; + +#define RELOC struct external_reloc +#define RELSZ 14 + +#define ARM_NOTE_SECTION ".note" diff --git a/include/coff/pe.h b/include/coff/pe.h index 9e1ea4b..558cf0e 100644 --- a/include/coff/pe.h +++ b/include/coff/pe.h @@ -137,6 +137,7 @@ #define IMAGE_FILE_MACHINE_AM33 0x01d3 #define IMAGE_FILE_MACHINE_AMD64 0x8664 #define IMAGE_FILE_MACHINE_ARM 0x01c0 +#define IMAGE_FILE_MACHINE_ARM64 0xaa64 #define IMAGE_FILE_MACHINE_AXP64 IMAGE_FILE_MACHINE_ALPHA64 #define IMAGE_FILE_MACHINE_CEE 0xc0ee #define IMAGE_FILE_MACHINE_CEF 0x0cef -- cgit v1.1