bfd: Add support for LoongArch64 EFI (efi-*-loongarch64).

This adds support for efi-loongarch64 by virtue of adding a new PEI target
pei-loongarch64.  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 loongarch64 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.

We should't limit addresses to 32-bits for 64-bit vma, otherwise there will be
"RVA truncated" error when using objcopy on loongarch64.

With these changes the resulting file is recognized as an efi image.

Any magic number is based on the Microsoft PE specification [1].

The test results are as follows:
$ make check-binutils RUNTESTFLAGS='loongarch64.exp'
  PASS: Check if efi app format is recognized

$ objdump -h -f tmpdir/loongarch64copy.o
  tmpdir/loongarch64copy.o:     file format pei-loongarch64
  architecture: Loongarch64, flags 0x00000132:
  EXEC_P, HAS_SYMS, HAS_LOCALS, D_PAGED
  start address 0x0000000000000000

  Sections:
  Idx Name          Size      VMA               LMA               File off  Algn
    0 .text         0000003c  00000000200000b0  00000000200000b0  00000200  2**2
                    CONTENTS, ALLOC, LOAD, READONLY, CODE

[1] https://docs.microsoft.com/en-us/windows/win32/debug/pe-format

bfd:
  * .gitignore (pe-loongarch64igen.c): New.
  * Makefile.am (pei-loongarch64.lo, pe-loongarch64igen.lo, pei-loongarch64.c,
  pe-loongarch64igen.c): Add support.
  * Makefile.in: Likewise.
  * bfd.c (bfd_get_sign_extend_vma): Add pei-loongarch64.
  * coff-loongarch64.c: New file.
  * coffcode.h (coff_set_arch_mach_hook, coff_set_flags,
  coff_write_object_contents) Add loongarch64 (loongarch64_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_peLoongArch64_bfd_copy_private_bfd_data_common,
  _bfd_peLoongArch64_bfd_copy_private_section_data,
  _bfd_peLoongArch64_get_symbol_info, _bfd_peLoongArch64_only_swap_filehdr_out,
  _bfd_peLoongArch64_print_private_bfd_data_common,
  _bfd_peLoongArch64i_final_link_postscript,
  _bfd_peLoongArch64i_only_swap_filehdr_out, _bfd_peLoongArch64i_swap_aouthdr_in,
  _bfd_peLoongArch64i_swap_aouthdr_out, _bfd_peLoongArch64i_swap_aux_in,
  _bfd_peLoongArch64i_swap_aux_out, _bfd_peLoongArch64i_swap_lineno_in,
  _bfd_peLoongArch64i_swap_lineno_out, _bfd_peLoongArch64i_swap_scnhdr_out,
  _bfd_peLoongArch64i_swap_sym_in, _bfd_peLoongArch64i_swap_sym_out,
  _bfd_peLoongArch64i_swap_debugdir_in, _bfd_peLoongArch64i_swap_debugdir_out,
  _bfd_peLoongArch64i_write_codeview_record,
  _bfd_peLoongArch64i_slurp_codeview_record,
  _bfd_peLoongArch64_print_ce_compressed_pdata): New.
  * 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_peLoongArch64,
  * pei-loongarch64.c: New file.
  * peicode.h (coff_swap_scnhdr_in, pe_ILF_build_a_bfd, pe_ILF_object_p):
  Support COFF_WITH_peLoongArch64.
  (jtab): Add dummy entry that traps.
  * targets.c (loongarch64_pei_vec): New.

binutils
  * testsuite/binutils-all/loongarch64/loongarch64.exp: New file.
  * testsuite/binutils-all/loongarch64/pei-loongarch64.d: New test.
  * testsuite/binutils-all/loongarch64/pei-loongarch64.s: New test.

include
  * coff/loongarch64.h: New file.
  * coff/pe.h (IMAGE_FILE_MACHINE_LOONGARCH64): New.

Signed-off-by: Youling Tang <tangyouling@loongson.cn>

1 files changed, 36 insertions, 0 deletions

diff --git a/bfd/libpei.h b/bfd/libpei.h
index 4aca024..dcf42f9 100644
--- a/bfd/libpei.h
+++ b/bfd/libpei.h
@@ -310,6 +310,41 @@
 #define _bfd_XXi_write_codeview_record			_bfd_peAArch64i_write_codeview_record
 #define _bfd_XXi_slurp_codeview_record			_bfd_peAArch64i_slurp_codeview_record
 
+#elif defined COFF_WITH_peLoongArch64
+
+#define GET_OPTHDR_IMAGE_BASE		 H_GET_64
+#define PUT_OPTHDR_IMAGE_BASE		 H_PUT_64
+#define GET_OPTHDR_SIZE_OF_STACK_RESERVE H_GET_64
+#define PUT_OPTHDR_SIZE_OF_STACK_RESERVE H_PUT_64
+#define GET_OPTHDR_SIZE_OF_STACK_COMMIT	 H_GET_64
+#define PUT_OPTHDR_SIZE_OF_STACK_COMMIT	 H_PUT_64
+#define GET_OPTHDR_SIZE_OF_HEAP_RESERVE	 H_GET_64
+#define PUT_OPTHDR_SIZE_OF_HEAP_RESERVE	 H_PUT_64
+#define GET_OPTHDR_SIZE_OF_HEAP_COMMIT	 H_GET_64
+#define PUT_OPTHDR_SIZE_OF_HEAP_COMMIT	 H_PUT_64
+#define GET_PDATA_ENTRY			 bfd_get_32
+
+#define _bfd_XX_bfd_copy_private_bfd_data_common	_bfd_peLoongArch64_bfd_copy_private_bfd_data_common
+#define _bfd_XX_bfd_copy_private_section_data		_bfd_peLoongArch64_bfd_copy_private_section_data
+#define _bfd_XX_get_symbol_info				_bfd_peLoongArch64_get_symbol_info
+#define _bfd_XX_only_swap_filehdr_out			_bfd_peLoongArch64_only_swap_filehdr_out
+#define _bfd_XX_print_private_bfd_data_common		_bfd_peLoongArch64_print_private_bfd_data_common
+#define _bfd_XXi_final_link_postscript			_bfd_peLoongArch64i_final_link_postscript
+#define _bfd_XXi_only_swap_filehdr_out			_bfd_peLoongArch64i_only_swap_filehdr_out
+#define _bfd_XXi_swap_aouthdr_in			_bfd_peLoongArch64i_swap_aouthdr_in
+#define _bfd_XXi_swap_aouthdr_out			_bfd_peLoongArch64i_swap_aouthdr_out
+#define _bfd_XXi_swap_aux_in				_bfd_peLoongArch64i_swap_aux_in
+#define _bfd_XXi_swap_aux_out				_bfd_peLoongArch64i_swap_aux_out
+#define _bfd_XXi_swap_lineno_in				_bfd_peLoongArch64i_swap_lineno_in
+#define _bfd_XXi_swap_lineno_out			_bfd_peLoongArch64i_swap_lineno_out
+#define _bfd_XXi_swap_scnhdr_out			_bfd_peLoongArch64i_swap_scnhdr_out
+#define _bfd_XXi_swap_sym_in				_bfd_peLoongArch64i_swap_sym_in
+#define _bfd_XXi_swap_sym_out				_bfd_peLoongArch64i_swap_sym_out
+#define _bfd_XXi_swap_debugdir_in			_bfd_peLoongArch64i_swap_debugdir_in
+#define _bfd_XXi_swap_debugdir_out			_bfd_peLoongArch64i_swap_debugdir_out
+#define _bfd_XXi_write_codeview_record			_bfd_peLoongArch64i_write_codeview_record
+#define _bfd_XXi_slurp_codeview_record			_bfd_peLoongArch64i_slurp_codeview_record
+
 #else /* !COFF_WITH_pep */
 
 #define GET_OPTHDR_IMAGE_BASE H_GET_32
@@ -405,5 +440,6 @@ bool _bfd_pe_print_ce_compressed_pdata (bfd *, void *);
 bool _bfd_pe64_print_ce_compressed_pdata (bfd *, void *);
 bool _bfd_pex64_print_ce_compressed_pdata (bfd *, void *);
 bool _bfd_peAArch64_print_ce_compressed_pdata (bfd *, void *);
+bool _bfd_peLoongArch64_print_ce_compressed_pdata (bfd *, void *);
 bool _bfd_pep_print_ce_compressed_pdata (bfd *, void *);