binutils-gdb/bfd/pe-x86_64.c
Tamar Christina 251dae9107 x86: Add i386 PE big-object support
The 64-bit version of binutils got support for the PE COFF BIG OBJ format a
couple of years ago.   The BIG OBJ format is a slightly different COFF format
which extends the size of the number of section field in the header from a
uint16_t to a uint32_t and so greatly increases the number of sections allowed.

However the 32-bit version of bfd never got support for this.  The GHC Haskell
compiler generates a great deal of symbols due to it's use of
-ffunction-sections and -fdata-sections.

This meant that we could not build the 32-bit version of the GHC Compiler for
many releases now as binutils didn't have this support.

This patch adds the support to the 32-bit port of binutils as well and also does
come cleanup in the code.

bfd/ChangeLog:

	* coff-i386.c (COFF_WITH_PE_BIGOBJ): New.
	* coff-x86_64.c (COFF_WITH_PE_BIGOBJ): New.
	* config.bfd (targ_selvecs): Rename x86_64_pe_be_vec
	to x86_64_pe_big_vec as it not a big-endian format.
	(vec i386_pe_big_vec): New.
	* configure.ac: Likewise.
	* targets.c: Likewise.
	* configure: Regenerate.
	* pe-i386.c (TARGET_SYM_BIG, TARGET_NAME_BIG,
	COFF_WITH_PE_BIGOBJ): New.
	* pe-x86_64.c (TARGET_SYM_BIG, TARGET_NAME_BIG):
	New.
	(x86_64_pe_be_vec): Moved.

gas/ChangeLog:

	* NEWS: Add news entry for big-obj.
	* config/tc-i386.c (i386_target_format): Support new format.
	* doc/c-i386.texi: Add i386 support.
	* testsuite/gas/pe/big-obj.d: Rename test to not be x64 specific.
	* testsuite/gas/pe/pe.exp (big-obj): Make test run on i386 as well.

ld/ChangeLog:

	* pe-dll.c (pe_detail_list):  Add pe-bigobj-i386.
2020-04-27 17:41:39 +01:00

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C

/* BFD back-end for Intel/AMD x86_64 PECOFF files.
Copyright (C) 2006-2020 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.
Written by Kai Tietz, OneVision Software GmbH&CoKg. */
#include "sysdep.h"
#include "bfd.h"
#define TARGET_SYM x86_64_pe_vec
#define TARGET_NAME "pe-x86-64"
#define TARGET_SYM_BIG x86_64_pe_big_vec
#define TARGET_NAME_BIG "pe-bigobj-x86-64"
#define COFF_WITH_PE
#define COFF_WITH_pex64
#define COFF_WITH_PE_BIGOBJ
#define PCRELOFFSET TRUE
#if defined (USE_MINGW64_LEADING_UNDERSCORES)
#define TARGET_UNDERSCORE '_'
#else
#define TARGET_UNDERSCORE 0
#endif
#define COFF_LONG_SECTION_NAMES
#define COFF_SUPPORT_GNU_LINKONCE
#define COFF_LONG_FILENAMES
#define COFF_SECTION_ALIGNMENT_ENTRIES \
{ COFF_SECTION_NAME_EXACT_MATCH (".bss"), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 4 }, \
{ COFF_SECTION_NAME_PARTIAL_MATCH (".data"), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 4 }, \
{ COFF_SECTION_NAME_PARTIAL_MATCH (".rdata"), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 4 }, \
{ COFF_SECTION_NAME_PARTIAL_MATCH (".text"), \
COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 4 }, \
{ 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 (".zdebug"), \
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 }
/* The function pex64_bfd_print_pdata is implemented in pei-x86_64.c
source, but has be extended to also handle pe objects. */
extern bfd_boolean pex64_bfd_print_pdata (bfd *, void *);
#define bfd_pe_print_pdata pex64_bfd_print_pdata
#include "coff-x86_64.c"