9f7c3e5e99
* elf-bfd.h (_bfd_elf_link_hash_table_free): Declare. * elflink.c (_bfd_elf_link_hash_table_free): New function. (elf_final_link_free): New function, extracted from.. (bfd_elf_final_link): ..here. Always call _bfd_elf_write_section_eh_frame_hdr. * elfxx-target.h (bfd_elfNN_bfd_link_hash_table_free): Default to _bfd_elf_link_hash_table_free. * libbfd-in.h (_bfd_merge_sections_free): Declare. * libbfd.h: Regenerate. * merge.c (_bfd_merge_sections_free): New function. * elf-eh-frame.c (_bfd_elf_write_section_eh_frame_hdr): Free hdr_info->array. * elf-m10300.c (elf32_mn10300_link_hash_table_free): Call _bfd_elf_link_hash_table_free. * elf32-arm.c (elf32_arm_link_hash_table_free): Likewise. * elf32-avr.c (elf32_avr_link_hash_table_free): Likewise. * elf32-hppa.c (elf32_hppa_link_hash_table_free): Likewise. * elf32-i386.c (elf_i386_link_hash_table_free): Likewise. * elf32-m68hc1x.c (m68hc11_elf_hash_table_free): Likewise. * elf32-m68k.c (elf_m68k_link_hash_table_free): Likewise. * elf32-metag.c (elf_metag_link_hash_table_free): Likewise. * elf32-xgate.c (xgate_elf_bfd_link_hash_table_free): Likewise. * elf64-aarch64.c (elf64_aarch64_link_hash_table_free): Likewise. * elf64-ia64-vms.c (elf64_ia64_hash_table_free): Likewise. * elf64-ppc.c (ppc64_elf_link_hash_table_free): Likewise. * elf64-x86-64.c (elf_x86_64_link_hash_table_free): Likewise. * elfnn-ia64.c (elfNN_ia64_hash_table_free): Likewise. * elf32-cr16.c (elf32_cr16_link_hash_table_free): Delete. (bfd_elf32_bfd_link_hash_table_free): Don't define. * elf32-tic6x.c (elf32_tic6x_link_hash_table_free): Delete. (bfd_elf32_bfd_link_hash_table_free): Dont' define.
730 lines
22 KiB
C
730 lines
22 KiB
C
/* Freescale XGATE-specific support for 32-bit ELF
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Copyright 2010, 2011, 2012
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Free Software Foundation, Inc.
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Contributed by Sean Keys(skeys@ipdatasys.com)
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include "sysdep.h"
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#include "bfd.h"
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#include "bfdlink.h"
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#include "libbfd.h"
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#include "elf-bfd.h"
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#include "elf32-xgate.h"
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#include "elf/xgate.h"
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#include "opcode/xgate.h"
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#include "libiberty.h"
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/* Relocation functions. */
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static reloc_howto_type *
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bfd_elf32_bfd_reloc_type_lookup (bfd *, bfd_reloc_code_real_type);
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static reloc_howto_type *
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bfd_elf32_bfd_reloc_name_lookup (bfd *, const char *);
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static void
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xgate_info_to_howto_rel (bfd *, arelent *, Elf_Internal_Rela *);
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static bfd_boolean
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xgate_elf_set_mach_from_flags (bfd *);
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static struct bfd_hash_entry *
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stub_hash_newfunc (struct bfd_hash_entry *, struct bfd_hash_table *,
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const char *);
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static struct bfd_link_hash_table*
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xgate_elf_bfd_link_hash_table_create (bfd *);
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/* Use REL instead of RELA to save space */
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#define USE_REL 1
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static reloc_howto_type elf_xgate_howto_table[] =
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{
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/* This reloc does nothing. */
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HOWTO (R_XGATE_NONE, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_XGATE_NONE", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* A 8 bit absolute relocation. */
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HOWTO (R_XGATE_8, /* type */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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8, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_XGATE_8", /* name */
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FALSE, /* partial_inplace */
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0x00ff, /* src_mask */
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0x00ff, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* A 8 bit PC-rel relocation. */
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HOWTO (R_XGATE_PCREL_8, /* type */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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8, /* bitsize */
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TRUE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_XGATE_PCREL_8", /* name */
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FALSE, /* partial_inplace */
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0x00ff, /* src_mask */
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0x00ff, /* dst_mask */
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TRUE), /* pcrel_offset */
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/* A 16 bit absolute relocation. */
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HOWTO (R_XGATE_16, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont /*bitfield */, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_XGATE_16", /* name */
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FALSE, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* A 32 bit absolute relocation. This one is never used for the
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code relocation. It's used by gas for -gstabs generation. */
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HOWTO (R_XGATE_32, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_XGATE_32", /* name */
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FALSE, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* A 16 bit PC-rel relocation. */
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HOWTO (R_XGATE_PCREL_16, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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TRUE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_XGATE_PCREL_16", /* name */
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FALSE, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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TRUE), /* pcrel_offset */
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/* GNU extension to record C++ vtable hierarchy. */
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HOWTO (R_XGATE_GNU_VTINHERIT, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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NULL, /* special_function */
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"R_XGATE_GNU_VTINHERIT", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* GNU extension to record C++ vtable member usage. */
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HOWTO (R_XGATE_GNU_VTENTRY, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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_bfd_elf_rel_vtable_reloc_fn, /* special_function */
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"R_XGATE_GNU_VTENTRY", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* A 24 bit relocation. */
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HOWTO (R_XGATE_24, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_XGATE_IMM8_LO", /* name */
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FALSE, /* partial_inplace */
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0x00ff, /* src_mask */
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0x00ff, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* A 16-bit low relocation. */
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HOWTO (R_XGATE_LO16, /* type */
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8, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_XGATE_IMM8_HI", /* name */
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FALSE, /* partial_inplace */
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0x00ff, /* src_mask */
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0x00ff, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* A page relocation. */
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HOWTO (R_XGATE_GPAGE, /* type */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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8, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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xgate_elf_special_reloc,/* special_function */
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"R_XGATE_GPAGE", /* name */
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FALSE, /* partial_inplace */
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0x00ff, /* src_mask */
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0x00ff, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* A 9 bit absolute relocation. */
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HOWTO (R_XGATE_PCREL_9, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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9, /* bitsize */
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TRUE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_XGATE_PCREL_9", /* name */
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FALSE, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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TRUE), /* pcrel_offset */
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/* A 8 bit absolute relocation (upper address). */
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HOWTO (R_XGATE_PCREL_10, /* type */
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8, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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10, /* bitsize */
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TRUE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_XGATE_PCREL_10", /* name */
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FALSE, /* partial_inplace */
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0x00ff, /* src_mask */
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0x00ff, /* dst_mask */
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TRUE), /* pcrel_offset */
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/* A 8 bit absolute relocation. */
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HOWTO (R_XGATE_IMM8_LO, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_XGATE_IMM8_LO", /* name */
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FALSE, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* A 16 bit absolute relocation (upper address). */
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HOWTO (R_XGATE_IMM8_HI, /* type */
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8, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_XGATE_IMM8_HI", /* name */
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FALSE, /* partial_inplace */
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0x00ff, /* src_mask */
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0x00ff, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* A 3 bit absolute relocation. */
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HOWTO (R_XGATE_IMM3, /* type */
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8, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_XGATE_IMM3", /* name */
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FALSE, /* partial_inplace */
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0x00ff, /* src_mask */
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0x00ff, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* A 4 bit absolute relocation. */
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HOWTO (R_XGATE_IMM4, /* type */
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8, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_XGATE_IMM4", /* name */
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FALSE, /* partial_inplace */
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0x00ff, /* src_mask */
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0x00ff, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* A 5 bit absolute relocation. */
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HOWTO (R_XGATE_IMM5, /* type */
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8, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_XGATE_IMM5", /* name */
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FALSE, /* partial_inplace */
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0x00ff, /* src_mask */
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0x00ff, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* Mark beginning of a jump instruction (any form). */
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HOWTO (R_XGATE_RL_JUMP, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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xgate_elf_ignore_reloc, /* special_function */
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"R_XGATE_RL_JUMP", /* name */
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TRUE, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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TRUE), /* pcrel_offset */
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/* Mark beginning of Gcc relaxation group instruction. */
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HOWTO (R_XGATE_RL_GROUP, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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xgate_elf_ignore_reloc, /* special_function */
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"R_XGATE_RL_GROUP", /* name */
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TRUE, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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TRUE), /* pcrel_offset */
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};
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/* Map BFD reloc types to XGATE ELF reloc types. */
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struct xgate_reloc_map
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{
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bfd_reloc_code_real_type bfd_reloc_val;
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unsigned char elf_reloc_val;
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};
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static const struct xgate_reloc_map xgate_reloc_map[] =
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{
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{BFD_RELOC_NONE, R_XGATE_NONE},
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{BFD_RELOC_8, R_XGATE_8},
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{BFD_RELOC_8_PCREL, R_XGATE_PCREL_8},
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{BFD_RELOC_16_PCREL, R_XGATE_PCREL_16},
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{BFD_RELOC_16, R_XGATE_16},
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{BFD_RELOC_32, R_XGATE_32},
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{BFD_RELOC_VTABLE_INHERIT, R_XGATE_GNU_VTINHERIT},
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{BFD_RELOC_VTABLE_ENTRY, R_XGATE_GNU_VTENTRY},
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{BFD_RELOC_XGATE_LO16, R_XGATE_LO16},
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{BFD_RELOC_XGATE_GPAGE, R_XGATE_GPAGE},
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{BFD_RELOC_XGATE_24, R_XGATE_24},
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{BFD_RELOC_XGATE_PCREL_9, R_XGATE_PCREL_9},
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{BFD_RELOC_XGATE_PCREL_10, R_XGATE_PCREL_10},
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{BFD_RELOC_XGATE_IMM8_LO, R_XGATE_IMM8_LO},
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{BFD_RELOC_XGATE_IMM8_HI, R_XGATE_IMM8_HI},
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{BFD_RELOC_XGATE_IMM3, R_XGATE_IMM3},
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{BFD_RELOC_XGATE_IMM4, R_XGATE_IMM4},
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{BFD_RELOC_XGATE_IMM5, R_XGATE_IMM5},
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{BFD_RELOC_XGATE_RL_JUMP, R_XGATE_RL_JUMP},
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{BFD_RELOC_XGATE_RL_GROUP, R_XGATE_RL_GROUP},
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};
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static reloc_howto_type *
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bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
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bfd_reloc_code_real_type code)
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{
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE (xgate_reloc_map); i++)
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if (xgate_reloc_map[i].bfd_reloc_val == code)
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return &elf_xgate_howto_table[xgate_reloc_map[i].elf_reloc_val];
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return NULL;
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}
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static reloc_howto_type *
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bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
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{
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE (elf_xgate_howto_table); i++)
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if (elf_xgate_howto_table[i].name != NULL
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&& strcasecmp (elf_xgate_howto_table[i].name, r_name) == 0)
|
|
return &elf_xgate_howto_table[i];
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* Set the howto pointer for an XGATE ELF reloc. */
|
|
|
|
static void
|
|
xgate_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
|
|
arelent *cache_ptr,
|
|
Elf_Internal_Rela *dst)
|
|
{
|
|
unsigned int r_type;
|
|
|
|
r_type = ELF32_R_TYPE (dst->r_info);
|
|
BFD_ASSERT(r_type < (unsigned int) R_XGATE_max);
|
|
cache_ptr->howto = &elf_xgate_howto_table[r_type];
|
|
}
|
|
|
|
/* Free the derived linker hash table. */
|
|
|
|
void
|
|
xgate_elf_bfd_link_hash_table_free (struct bfd_link_hash_table *hash)
|
|
{
|
|
struct xgate_elf_link_hash_table *ret =
|
|
(struct xgate_elf_link_hash_table *) hash;
|
|
|
|
bfd_hash_table_free (ret->stub_hash_table);
|
|
free (ret->stub_hash_table);
|
|
_bfd_elf_link_hash_table_free (hash);
|
|
}
|
|
|
|
/* Create a XGATE ELF linker hash table. */
|
|
|
|
static struct bfd_link_hash_table*
|
|
xgate_elf_bfd_link_hash_table_create (bfd *abfd)
|
|
{
|
|
struct xgate_elf_link_hash_table *ret;
|
|
bfd_size_type amt = sizeof(struct xgate_elf_link_hash_table);
|
|
|
|
ret = (struct xgate_elf_link_hash_table *) bfd_zmalloc (amt);
|
|
if (ret == (struct xgate_elf_link_hash_table *) NULL)
|
|
return NULL;
|
|
|
|
if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
|
|
_bfd_elf_link_hash_newfunc, sizeof(struct elf_link_hash_entry),
|
|
XGATE_ELF_DATA))
|
|
{
|
|
free (ret);
|
|
return NULL;
|
|
}
|
|
|
|
/* Init the stub hash table too. */
|
|
amt = sizeof(struct bfd_hash_table);
|
|
ret->stub_hash_table = (struct bfd_hash_table*) bfd_zmalloc (amt);
|
|
if (ret->stub_hash_table == NULL)
|
|
{
|
|
free (ret);
|
|
return NULL;
|
|
}
|
|
|
|
if (!bfd_hash_table_init (ret->stub_hash_table, stub_hash_newfunc,
|
|
sizeof(struct elf32_xgate_stub_hash_entry)))
|
|
{
|
|
free (ret->stub_hash_table);
|
|
free (ret);
|
|
return NULL;
|
|
}
|
|
|
|
return &ret->root.root;
|
|
}
|
|
|
|
static bfd_boolean
|
|
xgate_elf_set_mach_from_flags (bfd *abfd ATTRIBUTE_UNUSED)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
/* Specific sections:
|
|
- The .page0 is a data section that is mapped in [0x0000..0x00FF].
|
|
Page0 accesses are faster on the M68HC12.
|
|
- The .vectors is the section that represents the interrupt
|
|
vectors.
|
|
- The .xgate section is starts in 0xE08800 or as xgate sees it 0x0800. */
|
|
static const struct bfd_elf_special_section elf32_xgate_special_sections[] =
|
|
{
|
|
{ STRING_COMMA_LEN (".eeprom"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
|
|
{ STRING_COMMA_LEN (".page0"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
|
|
{ STRING_COMMA_LEN (".softregs"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
|
|
{ STRING_COMMA_LEN (".vectors"), 0, SHT_PROGBITS, SHF_ALLOC },
|
|
/*{ STRING_COMMA_LEN (".xgate"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
|
|
TODO finish this implementation */
|
|
{ NULL, 0, 0, 0, 0 }
|
|
};
|
|
|
|
struct xgate_scan_param
|
|
{
|
|
struct xgate_page_info* pinfo;
|
|
bfd_boolean use_memory_banks;
|
|
};
|
|
|
|
/* Assorted hash table functions. */
|
|
|
|
/* Initialize an entry in the stub hash table. */
|
|
|
|
static struct bfd_hash_entry *
|
|
stub_hash_newfunc (struct bfd_hash_entry *entry,
|
|
struct bfd_hash_table *table ATTRIBUTE_UNUSED,
|
|
const char *string ATTRIBUTE_UNUSED)
|
|
{
|
|
return entry;
|
|
}
|
|
|
|
/* Hook called by the linker routine which adds symbols from an object
|
|
file. */
|
|
|
|
bfd_boolean
|
|
elf32_xgate_add_symbol_hook (bfd *abfd ATTRIBUTE_UNUSED,
|
|
struct bfd_link_info *info ATTRIBUTE_UNUSED,
|
|
Elf_Internal_Sym *sym,
|
|
const char **namep ATTRIBUTE_UNUSED,
|
|
flagword *flagsp ATTRIBUTE_UNUSED,
|
|
asection **secp ATTRIBUTE_UNUSED,
|
|
bfd_vma *valp ATTRIBUTE_UNUSED)
|
|
{
|
|
/* For some reason the st_target_internal value is not retained
|
|
after xgate_frob_symbol is called, hence this temp hack. */
|
|
sym->st_target_internal = 1;
|
|
return TRUE;
|
|
}
|
|
|
|
/* External entry points for sizing and building linker stubs. */
|
|
|
|
/* Set up various things so that we can make a list of input sections
|
|
for each output section included in the link. Returns -1 on error,
|
|
0 when no stubs will be needed, and 1 on success. */
|
|
|
|
int
|
|
elf32_xgate_setup_section_lists (bfd *output_bfd ATTRIBUTE_UNUSED,
|
|
struct bfd_link_info *info ATTRIBUTE_UNUSED)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
/* Determine and set the size of the stub section for a final link.
|
|
The basic idea here is to examine all the relocations looking for
|
|
PC-relative calls to a target that is unreachable with any "9-bit PC-REL"
|
|
instruction. */
|
|
|
|
bfd_boolean
|
|
elf32_xgate_size_stubs (bfd *output_bfd ATTRIBUTE_UNUSED,
|
|
bfd *stub_bfd ATTRIBUTE_UNUSED,
|
|
struct bfd_link_info *info ATTRIBUTE_UNUSED,
|
|
asection * (*add_stub_section) (const char*, asection*) ATTRIBUTE_UNUSED)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
/* Build all the stubs associated with the current output file. The
|
|
stubs are kept in a hash table attached to the main linker hash
|
|
table. This function is called via xgateelf_finish in the
|
|
linker. */
|
|
|
|
bfd_boolean
|
|
elf32_xgate_build_stubs (bfd *abfd ATTRIBUTE_UNUSED,
|
|
struct bfd_link_info *info ATTRIBUTE_UNUSED)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
xgate_elf_get_bank_parameters (struct bfd_link_info *info ATTRIBUTE_UNUSED)
|
|
{
|
|
return;
|
|
}
|
|
|
|
/* This function is used for relocs which are only used for relaxing,
|
|
which the linker should otherwise ignore. */
|
|
|
|
bfd_reloc_status_type
|
|
xgate_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED,
|
|
arelent *reloc_entry,
|
|
asymbol *symbol ATTRIBUTE_UNUSED,
|
|
void *data ATTRIBUTE_UNUSED,
|
|
asection *input_section,
|
|
bfd *output_bfd,
|
|
char **error_message ATTRIBUTE_UNUSED)
|
|
{
|
|
if (output_bfd != NULL)
|
|
reloc_entry->address += input_section->output_offset;
|
|
return bfd_reloc_ok;
|
|
}
|
|
|
|
bfd_reloc_status_type
|
|
xgate_elf_special_reloc (bfd *abfd ATTRIBUTE_UNUSED,
|
|
arelent *reloc_entry ATTRIBUTE_UNUSED,
|
|
asymbol *symbol ATTRIBUTE_UNUSED,
|
|
void *data ATTRIBUTE_UNUSED,
|
|
asection *input_section ATTRIBUTE_UNUSED,
|
|
bfd *output_bfd ATTRIBUTE_UNUSED,
|
|
char **error_message ATTRIBUTE_UNUSED)
|
|
{
|
|
abort ();
|
|
}
|
|
|
|
/* Look through the relocs for a section during the first phase.
|
|
Since we don't do .gots or .plts, we just need to consider the
|
|
virtual table relocs for gc. */
|
|
|
|
bfd_boolean
|
|
elf32_xgate_check_relocs (bfd *abfd ATTRIBUTE_UNUSED,
|
|
struct bfd_link_info *info ATTRIBUTE_UNUSED,
|
|
asection *sec ATTRIBUTE_UNUSED,
|
|
const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
/* Relocate a XGATE/S12x ELF section. */
|
|
|
|
bfd_boolean
|
|
elf32_xgate_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
|
|
struct bfd_link_info *info ATTRIBUTE_UNUSED,
|
|
bfd *input_bfd ATTRIBUTE_UNUSED,
|
|
asection *input_section ATTRIBUTE_UNUSED,
|
|
bfd_byte *contents ATTRIBUTE_UNUSED,
|
|
Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED,
|
|
Elf_Internal_Sym *local_syms ATTRIBUTE_UNUSED,
|
|
asection **local_sections ATTRIBUTE_UNUSED)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
/* Set and control ELF flags in ELF header. */
|
|
|
|
bfd_boolean
|
|
_bfd_xgate_elf_set_private_flags (bfd *abfd ATTRIBUTE_UNUSED,
|
|
flagword flags ATTRIBUTE_UNUSED)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
/* Merge backend specific data from an object file to the output
|
|
object file when linking. */
|
|
|
|
bfd_boolean
|
|
_bfd_xgate_elf_merge_private_bfd_data (bfd *ibfd ATTRIBUTE_UNUSED,
|
|
bfd *obfd ATTRIBUTE_UNUSED)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
bfd_boolean
|
|
_bfd_xgate_elf_print_private_bfd_data (bfd *abfd, void *ptr)
|
|
{
|
|
FILE *file = (FILE *) ptr;
|
|
|
|
BFD_ASSERT (abfd != NULL && ptr != NULL);
|
|
|
|
/* Print normal ELF private data. */
|
|
_bfd_elf_print_private_bfd_data (abfd, ptr);
|
|
|
|
/* xgettext:c-format */
|
|
fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
|
|
|
|
if (elf_elfheader (abfd)->e_flags & E_XGATE_I32)
|
|
fprintf (file, _("[abi=32-bit int, "));
|
|
else
|
|
fprintf (file, _("[abi=16-bit int, "));
|
|
|
|
if (elf_elfheader (abfd)->e_flags & E_XGATE_F64)
|
|
fprintf (file, _("64-bit double, "));
|
|
else
|
|
fprintf (file, _("32-bit double, "));
|
|
if (elf_elfheader (abfd)->e_flags & EF_XGATE_MACH)
|
|
fprintf (file, _("cpu=XGATE]"));
|
|
else
|
|
fprintf (file, _("error reading cpu type from elf private data"));
|
|
fputc ('\n', file);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
elf32_xgate_post_process_headers (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
|
|
{
|
|
|
|
}
|
|
|
|
#define ELF_ARCH bfd_arch_xgate
|
|
#define ELF_MACHINE_CODE EM_XGATE
|
|
#define ELF_TARGET_ID XGATE_ELF_DATA
|
|
|
|
#define ELF_MAXPAGESIZE 0x1000
|
|
|
|
#define TARGET_BIG_SYM bfd_elf32_xgate_vec
|
|
#define TARGET_BIG_NAME "elf32-xgate"
|
|
|
|
#define elf_info_to_howto 0
|
|
#define elf_info_to_howto_rel xgate_info_to_howto_rel
|
|
#define elf_backend_check_relocs elf32_xgate_check_relocs
|
|
#define elf_backend_relocate_section elf32_xgate_relocate_section
|
|
#define elf_backend_object_p xgate_elf_set_mach_from_flags
|
|
#define elf_backend_final_write_processing 0
|
|
#define elf_backend_can_gc_sections 1
|
|
#define elf_backend_special_sections elf32_xgate_special_sections
|
|
#define elf_backend_post_process_headers elf32_xgate_post_process_headers
|
|
#define elf_backend_add_symbol_hook elf32_xgate_add_symbol_hook
|
|
|
|
#define bfd_elf32_bfd_link_hash_table_create xgate_elf_bfd_link_hash_table_create
|
|
#define bfd_elf32_bfd_link_hash_table_free xgate_elf_bfd_link_hash_table_free
|
|
#define bfd_elf32_bfd_merge_private_bfd_data _bfd_xgate_elf_merge_private_bfd_data
|
|
#define bfd_elf32_bfd_set_private_flags _bfd_xgate_elf_set_private_flags
|
|
#define bfd_elf32_bfd_print_private_bfd_data _bfd_xgate_elf_print_private_bfd_data
|
|
|
|
#define xgate_stub_hash_lookup(table, string, create, copy) \
|
|
((struct elf32_xgate_stub_hash_entry *) \
|
|
bfd_hash_lookup ((table), (string), (create), (copy)))
|
|
|
|
#include "elf32-target.h"
|