Add basic support for RISC-V 64-bit EFI objects

This adds a new PEI target pei-riscv64-little.  Only objdump and objcopy
are supported.

bfd:
	* .gitignore: Add pe-riscv64igen.c.
	* Makefile.am (BFD64_BACKENDS): Add pei-riscv64.lo,
	pe-riscv64igen.lo.
	(BFD64_BACKENDS_CFILES): Add pei-riscv64.c.
	(BUILD_CFILES): Add pe-riscv64igen.c.
	(pe-riscv64igen.c): New rule.
	* Makefile.in: Regenerate.
	* bfd.c (bfd_get_sign_extend_vma): Add pei-riscv64-little.
	* coff-riscv64.c: New file.
	* coffcode.h (coff_set_arch_mach_hook, coff_set_flags)
	(coff_write_object_contents): Add riscv64 (riscv64_pei_vec)
	support.
	* config.bfd (targ_selvecs): Add riscv64_pei_vec to all riscv*
	targets.
	* configure.ac: Handle riscv64_pei_vec.
	* configure: Regenerate.
	* 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_XX_bfd_copy_private_bfd_data_common)
	(_bfd_XX_bfd_copy_private_section_data)
	(_bfd_XX_get_symbol_info, _bfd_XX_only_swap_filehdr_out)
	(_bfd_XX_print_private_bfd_data_common)
	(_bfd_XXi_final_link_postscript, _bfd_XXi_only_swap_filehdr_out)
	(_bfd_XXi_swap_aouthdr_in, _bfd_XXi_swap_aouthdr_out)
	(_bfd_XXi_swap_aux_in, _bfd_XXi_swap_aux_out)
	(_bfd_XXi_swap_lineno_in, _bfd_XXi_swap_lineno_out)
	(_bfd_XXi_swap_scnhdr_out, _bfd_XXi_swap_sym_in)
	(_bfd_XXi_swap_sym_out, _bfd_XXi_swap_debugdir_in)
	(_bfd_XXi_swap_debugdir_out, _bfd_XXi_write_codeview_record)
	(_bfd_XXi_slurp_codeview_record) [COFF_WITH_peRiscV64]: Define.
	(_bfd_peRiscV64_print_ce_compressed_pdata): Declare.
	* peXXigen.c (_bfd_XXi_swap_aouthdr_in, _bfd_XXi_swap_aouthdr_out)
	(_bfd_XXi_swap_scnhdr_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_peRiscV64.
	* pei-riscv64.c: New file.
	* peicode.h (coff_swap_scnhdr_in, pe_ILF_build_a_bfd)
	(pe_ILF_object_p): Support COFF_WITH_peRiscV64.
	(jtab): Add dummy entry that traps.
	* targets.c (_bfd_target_vector): Add riscv64_pei_vec.

binutils:
	* testsuite/binutils-all/riscv/pei-riscv64.d: New.
	* testsuite/binutils-all/riscv/pei-riscv64.s: New.

include:
	* coff/riscv64.h: New file.
	* coff/pe.h (IMAGE_FILE_MACHINE_RISCV32)
	(IMAGE_FILE_MACHINE_RISCV64): Define.

1 files changed, 74 insertions, 0 deletions

diff --git a/bfd/pei-riscv64.c b/bfd/pei-riscv64.c
new file mode 100644
index 0000000..1a80015
--- /dev/null
+++ b/bfd/pei-riscv64.c
@@ -0,0 +1,74 @@
+/* BFD back-end for RISC-V 64-bit PE IMAGE COFF files.
+   Copyright (C) 2023 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.  */
+
+#include "sysdep.h"
+#include "bfd.h"
+
+#define TARGET_SYM		riscv64_pei_vec
+#define TARGET_NAME		"pei-riscv64-little"
+#define TARGET_ARCHITECTURE	bfd_arch_riscv
+#define TARGET_PAGESIZE		0x4000
+#define TARGET_BIG_ENDIAN	0
+#define TARGET_ARCHIVE		0
+#define TARGET_PRIORITY		0
+
+#define COFF_IMAGE_WITH_PE
+/* Rename the above into...  */
+#define COFF_WITH_peRiscV64
+#define COFF_WITH_PE
+#define PCRELOFFSET	   true
+
+/* Long section names not allowed in executable images, only object files.  */
+#define COFF_LONG_SECTION_NAMES 0
+
+#define COFF_SECTION_ALIGNMENT_ENTRIES \
+{ COFF_SECTION_NAME_EXACT_MATCH (".bss"), \
+  COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
+{ COFF_SECTION_NAME_EXACT_MATCH (".data"), \
+  COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
+{ COFF_SECTION_NAME_EXACT_MATCH (".rdata"), \
+  COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
+{ COFF_SECTION_NAME_EXACT_MATCH (".text"), \
+  COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
+{ COFF_SECTION_NAME_PARTIAL_MATCH (".idata"), \
+  COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
+{ COFF_SECTION_NAME_EXACT_MATCH (".pdata"), \
+  COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
+{ COFF_SECTION_NAME_PARTIAL_MATCH (".debug"), \
+  COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \
+{ COFF_SECTION_NAME_PARTIAL_MATCH (".gnu.linkonce.wi."), \
+  COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "libbfd.h"
+#include "coff/riscv64.h"
+#include "coff/internal.h"
+#include "coff/pe.h"
+#include "libcoff.h"
+#include "libpei.h"
+#include "libiberty.h"
+
+/* Make sure we're setting a 64-bit format.  */
+#undef AOUTSZ
+#define AOUTSZ          PEPAOUTSZ
+#define PEAOUTHDR       PEPAOUTHDR
+
+#include "coff-riscv64.c"