6886 lines
207 KiB
C
6886 lines
207 KiB
C
/* FRV-specific support for 32-bit ELF.
|
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Copyright (C) 2002-2019 Free Software Foundation, Inc.
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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 "libbfd.h"
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#include "elf-bfd.h"
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#include "elf/frv.h"
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#include "dwarf2.h"
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#include "hashtab.h"
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#include "libiberty.h"
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/* Forward declarations. */
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static reloc_howto_type elf32_frv_howto_table [] =
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{
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/* This reloc does nothing. */
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HOWTO (R_FRV_NONE, /* type */
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0, /* rightshift */
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3, /* 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_generic_reloc, /* special_function */
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"R_FRV_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 32 bit absolute relocation. */
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HOWTO (R_FRV_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_FRV_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-relative relocation. */
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HOWTO (R_FRV_LABEL16, /* type */
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2, /* rightshift */
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2, /* 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_signed, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_FRV_LABEL16", /* 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 24-bit pc-relative relocation. */
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HOWTO (R_FRV_LABEL24, /* type */
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2, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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26, /* 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_FRV_LABEL24", /* name */
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FALSE, /* partial_inplace */
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0x7e03ffff, /* src_mask */
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0x7e03ffff, /* dst_mask */
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TRUE), /* pcrel_offset */
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HOWTO (R_FRV_LO16, /* type */
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0, /* rightshift */
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2, /* 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_FRV_LO16", /* 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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HOWTO (R_FRV_HI16, /* type */
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0, /* rightshift */
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2, /* 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_FRV_HI16", /* 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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HOWTO (R_FRV_GPREL12, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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12, /* 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_FRV_GPREL12", /* name */
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FALSE, /* partial_inplace */
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0xfff, /* src_mask */
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0xfff, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (R_FRV_GPRELU12, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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12, /* 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_FRV_GPRELU12", /* name */
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FALSE, /* partial_inplace */
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0xfff, /* src_mask */
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0x3f03f, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (R_FRV_GPREL32, /* 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_FRV_GPREL32", /* 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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HOWTO (R_FRV_GPRELHI, /* type */
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0, /* rightshift */
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2, /* 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_FRV_GPRELHI", /* 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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HOWTO (R_FRV_GPRELLO, /* type */
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0, /* rightshift */
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2, /* 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_FRV_GPRELLO", /* 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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||
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/* A 12-bit signed operand with the GOT offset for the address of
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the symbol. */
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HOWTO (R_FRV_GOT12, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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12, /* bitsize */
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||
FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_signed, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_FRV_GOT12", /* name */
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||
FALSE, /* partial_inplace */
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0xfff, /* src_mask */
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0xfff, /* dst_mask */
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||
FALSE), /* pcrel_offset */
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||
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/* The upper 16 bits of the GOT offset for the address of the
|
||
symbol. */
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||
HOWTO (R_FRV_GOTHI, /* type */
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0, /* rightshift */
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2, /* 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_FRV_GOTHI", /* 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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||
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/* The lower 16 bits of the GOT offset for the address of the
|
||
symbol. */
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HOWTO (R_FRV_GOTLO, /* type */
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0, /* rightshift */
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2, /* 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_FRV_GOTLO", /* 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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/* The 32-bit address of the canonical descriptor of a function. */
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HOWTO (R_FRV_FUNCDESC, /* 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_FRV_FUNCDESC", /* 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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||
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||
/* A 12-bit signed operand with the GOT offset for the address of
|
||
canonical descriptor of a function. */
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HOWTO (R_FRV_FUNCDESC_GOT12, /* type */
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0, /* rightshift */
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||
2, /* size (0 = byte, 1 = short, 2 = long) */
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||
12, /* bitsize */
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||
FALSE, /* pc_relative */
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||
0, /* bitpos */
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||
complain_overflow_signed, /* complain_on_overflow */
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||
bfd_elf_generic_reloc, /* special_function */
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||
"R_FRV_FUNCDESC_GOT12", /* name */
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||
FALSE, /* partial_inplace */
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||
0xfff, /* src_mask */
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||
0xfff, /* dst_mask */
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||
FALSE), /* pcrel_offset */
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||
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||
/* The upper 16 bits of the GOT offset for the address of the
|
||
canonical descriptor of a function. */
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||
HOWTO (R_FRV_FUNCDESC_GOTHI, /* type */
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||
0, /* rightshift */
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||
2, /* 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 */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_FUNCDESC_GOTHI", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffff, /* src_mask */
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||
0xffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* The lower 16 bits of the GOT offset for the address of the
|
||
canonical descriptor of a function. */
|
||
HOWTO (R_FRV_FUNCDESC_GOTLO, /* type */
|
||
0, /* rightshift */
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||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_FUNCDESC_GOTLO", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* The 64-bit descriptor of a function. */
|
||
HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
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||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
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||
64, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_FUNCDESC_VALUE", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* A 12-bit signed operand with the GOT offset for the address of
|
||
canonical descriptor of a function. */
|
||
HOWTO (R_FRV_FUNCDESC_GOTOFF12, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
12, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_FUNCDESC_GOTOFF12", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xfff, /* src_mask */
|
||
0xfff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* The upper 16 bits of the GOT offset for the address of the
|
||
canonical descriptor of a function. */
|
||
HOWTO (R_FRV_FUNCDESC_GOTOFFHI, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_FUNCDESC_GOTOFFHI", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* The lower 16 bits of the GOT offset for the address of the
|
||
canonical descriptor of a function. */
|
||
HOWTO (R_FRV_FUNCDESC_GOTOFFLO, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_FUNCDESC_GOTOFFLO", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* A 12-bit signed operand with the GOT offset for the address of
|
||
the symbol. */
|
||
HOWTO (R_FRV_GOTOFF12, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
12, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_GOTOFF12", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xfff, /* src_mask */
|
||
0xfff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* The upper 16 bits of the GOT offset for the address of the
|
||
symbol. */
|
||
HOWTO (R_FRV_GOTOFFHI, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_GOTOFFHI", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* The lower 16 bits of the GOT offset for the address of the
|
||
symbol. */
|
||
HOWTO (R_FRV_GOTOFFLO, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_GOTOFFLO", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* A 24-bit pc-relative relocation referencing the TLS PLT entry for
|
||
a thread-local symbol. If the symbol number is 0, it refers to
|
||
the module. */
|
||
HOWTO (R_FRV_GETTLSOFF, /* type */
|
||
2, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
26, /* bitsize */
|
||
TRUE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_GETTLSOFF", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0x7e03ffff, /* src_mask */
|
||
0x7e03ffff, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
|
||
/* A 64-bit TLS descriptor for a symbol. This relocation is only
|
||
valid as a REL, dynamic relocation. */
|
||
HOWTO (R_FRV_TLSDESC_VALUE, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
64, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_TLSDESC_VALUE", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* A 12-bit signed operand with the GOT offset for the TLS
|
||
descriptor of the symbol. */
|
||
HOWTO (R_FRV_GOTTLSDESC12, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
12, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_GOTTLSDESC12", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xfff, /* src_mask */
|
||
0xfff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* The upper 16 bits of the GOT offset for the TLS descriptor of the
|
||
symbol. */
|
||
HOWTO (R_FRV_GOTTLSDESCHI, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_GOTTLSDESCHI", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* The lower 16 bits of the GOT offset for the TLS descriptor of the
|
||
symbol. */
|
||
HOWTO (R_FRV_GOTTLSDESCLO, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_GOTTLSDESCLO", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* A 12-bit signed operand with the offset from the module base
|
||
address to the thread-local symbol address. */
|
||
HOWTO (R_FRV_TLSMOFF12, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
12, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_TLSMOFF12", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xfff, /* src_mask */
|
||
0xfff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* The upper 16 bits of the offset from the module base address to
|
||
the thread-local symbol address. */
|
||
HOWTO (R_FRV_TLSMOFFHI, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_TLSMOFFHI", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* The lower 16 bits of the offset from the module base address to
|
||
the thread-local symbol address. */
|
||
HOWTO (R_FRV_TLSMOFFLO, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_TLSMOFFLO", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* A 12-bit signed operand with the GOT offset for the TLSOFF entry
|
||
for a symbol. */
|
||
HOWTO (R_FRV_GOTTLSOFF12, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
12, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_GOTTLSOFF12", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xfff, /* src_mask */
|
||
0xfff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* The upper 16 bits of the GOT offset for the TLSOFF entry for a
|
||
symbol. */
|
||
HOWTO (R_FRV_GOTTLSOFFHI, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_GOTTLSOFFHI", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* The lower 16 bits of the GOT offset for the TLSOFF entry for a
|
||
symbol. */
|
||
HOWTO (R_FRV_GOTTLSOFFLO, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_GOTTLSOFFLO", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* The 32-bit offset from the thread pointer (not the module base
|
||
address) to a thread-local symbol. */
|
||
HOWTO (R_FRV_TLSOFF, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
32, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_TLSOFF", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* An annotation for linker relaxation, that denotes the
|
||
symbol+addend whose TLS descriptor is referenced by the sum of
|
||
the two input registers of an ldd instruction. */
|
||
HOWTO (R_FRV_TLSDESC_RELAX, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_TLSDESC_RELAX", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* An annotation for linker relaxation, that denotes the
|
||
symbol+addend whose TLS resolver entry point is given by the sum
|
||
of the two register operands of an calll instruction. */
|
||
HOWTO (R_FRV_GETTLSOFF_RELAX, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_GETTLSOFF_RELAX", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* An annotation for linker relaxation, that denotes the
|
||
symbol+addend whose TLS offset GOT entry is given by the sum of
|
||
the two input registers of an ld instruction. */
|
||
HOWTO (R_FRV_TLSOFF_RELAX, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_TLSOFF_RELAX", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* A 32-bit offset from the module base address to
|
||
the thread-local symbol address. */
|
||
HOWTO (R_FRV_TLSMOFF, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
32, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_TLSMOFF", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
};
|
||
|
||
/* GNU extension to record C++ vtable hierarchy. */
|
||
static reloc_howto_type elf32_frv_vtinherit_howto =
|
||
HOWTO (R_FRV_GNU_VTINHERIT, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
NULL, /* special_function */
|
||
"R_FRV_GNU_VTINHERIT", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
FALSE); /* pcrel_offset */
|
||
|
||
/* GNU extension to record C++ vtable member usage. */
|
||
static reloc_howto_type elf32_frv_vtentry_howto =
|
||
HOWTO (R_FRV_GNU_VTENTRY, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
_bfd_elf_rel_vtable_reloc_fn, /* special_function */
|
||
"R_FRV_GNU_VTENTRY", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
FALSE); /* pcrel_offset */
|
||
|
||
/* The following 3 relocations are REL. The only difference to the
|
||
entries in the table above are that partial_inplace is TRUE. */
|
||
static reloc_howto_type elf32_frv_rel_32_howto =
|
||
HOWTO (R_FRV_32, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
32, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_32", /* name */
|
||
TRUE, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
FALSE); /* pcrel_offset */
|
||
|
||
static reloc_howto_type elf32_frv_rel_funcdesc_howto =
|
||
HOWTO (R_FRV_FUNCDESC, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
32, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_FUNCDESC", /* name */
|
||
TRUE, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
FALSE); /* pcrel_offset */
|
||
|
||
static reloc_howto_type elf32_frv_rel_funcdesc_value_howto =
|
||
HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
64, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_FUNCDESC_VALUE", /* name */
|
||
TRUE, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
FALSE); /* pcrel_offset */
|
||
|
||
static reloc_howto_type elf32_frv_rel_tlsdesc_value_howto =
|
||
/* A 64-bit TLS descriptor for a symbol. The first word resolves to
|
||
an entry point, and the second resolves to a special argument.
|
||
If the symbol turns out to be in static TLS, the entry point is a
|
||
return instruction, and the special argument is the TLS offset
|
||
for the symbol. If it's in dynamic TLS, the entry point is a TLS
|
||
offset resolver, and the special argument is a pointer to a data
|
||
structure allocated by the dynamic loader, containing the GOT
|
||
address for the offset resolver, the module id, the offset within
|
||
the module, and anything else the TLS offset resolver might need
|
||
to determine the TLS offset for the symbol in the running
|
||
thread. */
|
||
HOWTO (R_FRV_TLSDESC_VALUE, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
64, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_TLSDESC_VALUE", /* name */
|
||
TRUE, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
FALSE); /* pcrel_offset */
|
||
|
||
static reloc_howto_type elf32_frv_rel_tlsoff_howto =
|
||
/* The 32-bit offset from the thread pointer (not the module base
|
||
address) to a thread-local symbol. */
|
||
HOWTO (R_FRV_TLSOFF, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
32, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_FRV_TLSOFF", /* name */
|
||
TRUE, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
FALSE); /* pcrel_offset */
|
||
|
||
|
||
|
||
extern const bfd_target frv_elf32_fdpic_vec;
|
||
#define IS_FDPIC(bfd) ((bfd)->xvec == &frv_elf32_fdpic_vec)
|
||
|
||
/* An extension of the elf hash table data structure, containing some
|
||
additional FRV-specific data. */
|
||
struct frvfdpic_elf_link_hash_table
|
||
{
|
||
struct elf_link_hash_table elf;
|
||
|
||
/* A pointer to the .rofixup section. */
|
||
asection *sgotfixup;
|
||
/* GOT base offset. */
|
||
bfd_vma got0;
|
||
/* Location of the first non-lazy PLT entry, i.e., the number of
|
||
bytes taken by lazy PLT entries. If locally-bound TLS
|
||
descriptors require a ret instruction, it will be placed at this
|
||
offset. */
|
||
bfd_vma plt0;
|
||
/* A hash table holding information about which symbols were
|
||
referenced with which PIC-related relocations. */
|
||
struct htab *relocs_info;
|
||
/* Summary reloc information collected by
|
||
_frvfdpic_count_got_plt_entries. */
|
||
struct _frvfdpic_dynamic_got_info *g;
|
||
};
|
||
|
||
/* Get the FRV ELF linker hash table from a link_info structure. */
|
||
|
||
#define frvfdpic_hash_table(p) \
|
||
(elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
|
||
== FRV_ELF_DATA ? ((struct frvfdpic_elf_link_hash_table *) ((p)->hash)) : NULL)
|
||
|
||
#define frvfdpic_got_section(info) \
|
||
(frvfdpic_hash_table (info)->elf.sgot)
|
||
#define frvfdpic_gotrel_section(info) \
|
||
(frvfdpic_hash_table (info)->elf.srelgot)
|
||
#define frvfdpic_gotfixup_section(info) \
|
||
(frvfdpic_hash_table (info)->sgotfixup)
|
||
#define frvfdpic_plt_section(info) \
|
||
(frvfdpic_hash_table (info)->elf.splt)
|
||
#define frvfdpic_pltrel_section(info) \
|
||
(frvfdpic_hash_table (info)->elf.srelplt)
|
||
#define frvfdpic_relocs_info(info) \
|
||
(frvfdpic_hash_table (info)->relocs_info)
|
||
#define frvfdpic_got_initial_offset(info) \
|
||
(frvfdpic_hash_table (info)->got0)
|
||
#define frvfdpic_plt_initial_offset(info) \
|
||
(frvfdpic_hash_table (info)->plt0)
|
||
#define frvfdpic_dynamic_got_plt_info(info) \
|
||
(frvfdpic_hash_table (info)->g)
|
||
|
||
/* Currently it's the same, but if some day we have a reason to change
|
||
it, we'd better be using a different macro.
|
||
|
||
FIXME: if there's any TLS PLT entry that uses local-exec or
|
||
initial-exec models, we could use the ret at the end of any of them
|
||
instead of adding one more. */
|
||
#define frvfdpic_plt_tls_ret_offset(info) \
|
||
(frvfdpic_plt_initial_offset (info))
|
||
|
||
/* The name of the dynamic interpreter. This is put in the .interp
|
||
section. */
|
||
|
||
#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
|
||
|
||
#define DEFAULT_STACK_SIZE 0x20000
|
||
|
||
/* This structure is used to collect the number of entries present in
|
||
each addressable range of the got. */
|
||
struct _frvfdpic_dynamic_got_info
|
||
{
|
||
/* Several bits of information about the current link. */
|
||
struct bfd_link_info *info;
|
||
/* Total GOT size needed for GOT entries within the 12-, 16- or 32-bit
|
||
ranges. */
|
||
bfd_vma got12, gotlos, gothilo;
|
||
/* Total GOT size needed for function descriptor entries within the 12-,
|
||
16- or 32-bit ranges. */
|
||
bfd_vma fd12, fdlos, fdhilo;
|
||
/* Total GOT size needed by function descriptor entries referenced
|
||
in PLT entries, that would be profitable to place in offsets
|
||
close to the PIC register. */
|
||
bfd_vma fdplt;
|
||
/* Total PLT size needed by lazy PLT entries. */
|
||
bfd_vma lzplt;
|
||
/* Total GOT size needed for TLS descriptor entries within the 12-,
|
||
16- or 32-bit ranges. */
|
||
bfd_vma tlsd12, tlsdlos, tlsdhilo;
|
||
/* Total GOT size needed by TLS descriptors referenced in PLT
|
||
entries, that would be profitable to place in offers close to the
|
||
PIC register. */
|
||
bfd_vma tlsdplt;
|
||
/* Total PLT size needed by TLS lazy PLT entries. */
|
||
bfd_vma tlslzplt;
|
||
/* Number of relocations carried over from input object files. */
|
||
unsigned long relocs;
|
||
/* Number of fixups introduced by relocations in input object files. */
|
||
unsigned long fixups;
|
||
/* The number of fixups that reference the ret instruction added to
|
||
the PLT for locally-resolved TLS descriptors. */
|
||
unsigned long tls_ret_refs;
|
||
};
|
||
|
||
/* This structure is used to assign offsets to got entries, function
|
||
descriptors, plt entries and lazy plt entries. */
|
||
|
||
struct _frvfdpic_dynamic_got_plt_info
|
||
{
|
||
/* Summary information collected with _frvfdpic_count_got_plt_entries. */
|
||
struct _frvfdpic_dynamic_got_info g;
|
||
|
||
/* For each addressable range, we record a MAX (positive) and MIN
|
||
(negative) value. CUR is used to assign got entries, and it's
|
||
incremented from an initial positive value to MAX, then from MIN
|
||
to FDCUR (unless FDCUR wraps around first). FDCUR is used to
|
||
assign function descriptors, and it's decreased from an initial
|
||
non-positive value to MIN, then from MAX down to CUR (unless CUR
|
||
wraps around first). All of MIN, MAX, CUR and FDCUR always point
|
||
to even words. ODD, if non-zero, indicates an odd word to be
|
||
used for the next got entry, otherwise CUR is used and
|
||
incremented by a pair of words, wrapping around when it reaches
|
||
MAX. FDCUR is decremented (and wrapped) before the next function
|
||
descriptor is chosen. FDPLT indicates the number of remaining
|
||
slots that can be used for function descriptors used only by PLT
|
||
entries.
|
||
|
||
TMAX, TMIN and TCUR are used to assign TLS descriptors. TCUR
|
||
starts as MAX, and grows up to TMAX, then wraps around to TMIN
|
||
and grows up to MIN. TLSDPLT indicates the number of remaining
|
||
slots that can be used for TLS descriptors used only by TLS PLT
|
||
entries. */
|
||
struct _frvfdpic_dynamic_got_alloc_data
|
||
{
|
||
bfd_signed_vma max, cur, odd, fdcur, min;
|
||
bfd_signed_vma tmax, tcur, tmin;
|
||
bfd_vma fdplt, tlsdplt;
|
||
} got12, gotlos, gothilo;
|
||
};
|
||
|
||
/* Create an FRV ELF linker hash table. */
|
||
|
||
static struct bfd_link_hash_table *
|
||
frvfdpic_elf_link_hash_table_create (bfd *abfd)
|
||
{
|
||
struct frvfdpic_elf_link_hash_table *ret;
|
||
bfd_size_type amt = sizeof (struct frvfdpic_elf_link_hash_table);
|
||
|
||
ret = bfd_zmalloc (amt);
|
||
if (ret == NULL)
|
||
return NULL;
|
||
|
||
if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
|
||
_bfd_elf_link_hash_newfunc,
|
||
sizeof (struct elf_link_hash_entry),
|
||
FRV_ELF_DATA))
|
||
{
|
||
free (ret);
|
||
return NULL;
|
||
}
|
||
|
||
return &ret->elf.root;
|
||
}
|
||
|
||
/* Decide whether a reference to a symbol can be resolved locally or
|
||
not. If the symbol is protected, we want the local address, but
|
||
its function descriptor must be assigned by the dynamic linker. */
|
||
#define FRVFDPIC_SYM_LOCAL(INFO, H) \
|
||
(_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
|
||
|| ! elf_hash_table (INFO)->dynamic_sections_created)
|
||
#define FRVFDPIC_FUNCDESC_LOCAL(INFO, H) \
|
||
((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
|
||
|
||
/* This structure collects information on what kind of GOT, PLT or
|
||
function descriptors are required by relocations that reference a
|
||
certain symbol. */
|
||
struct frvfdpic_relocs_info
|
||
{
|
||
/* The index of the symbol, as stored in the relocation r_info, if
|
||
we have a local symbol; -1 otherwise. */
|
||
long symndx;
|
||
union
|
||
{
|
||
/* The input bfd in which the symbol is defined, if it's a local
|
||
symbol. */
|
||
bfd *abfd;
|
||
/* If symndx == -1, the hash table entry corresponding to a global
|
||
symbol (even if it turns out to bind locally, in which case it
|
||
should ideally be replaced with section's symndx + addend). */
|
||
struct elf_link_hash_entry *h;
|
||
} d;
|
||
/* The addend of the relocation that references the symbol. */
|
||
bfd_vma addend;
|
||
|
||
/* The fields above are used to identify an entry. The fields below
|
||
contain information on how an entry is used and, later on, which
|
||
locations it was assigned. */
|
||
/* The following 3 fields record whether the symbol+addend above was
|
||
ever referenced with a GOT relocation. The 12 suffix indicates a
|
||
GOT12 relocation; los is used for GOTLO relocations that are not
|
||
matched by a GOTHI relocation; hilo is used for GOTLO/GOTHI
|
||
pairs. */
|
||
unsigned got12:1;
|
||
unsigned gotlos:1;
|
||
unsigned gothilo:1;
|
||
/* Whether a FUNCDESC relocation references symbol+addend. */
|
||
unsigned fd:1;
|
||
/* Whether a FUNCDESC_GOT relocation references symbol+addend. */
|
||
unsigned fdgot12:1;
|
||
unsigned fdgotlos:1;
|
||
unsigned fdgothilo:1;
|
||
/* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */
|
||
unsigned fdgoff12:1;
|
||
unsigned fdgofflos:1;
|
||
unsigned fdgoffhilo:1;
|
||
/* Whether a GETTLSOFF relocation references symbol+addend. */
|
||
unsigned tlsplt:1;
|
||
/* FIXME: we should probably add tlspltdesc, tlspltoff and
|
||
tlspltimm, to tell what kind of TLS PLT entry we're generating.
|
||
We might instead just pre-compute flags telling whether the
|
||
object is suitable for local exec, initial exec or general
|
||
dynamic addressing, and use that all over the place. We could
|
||
also try to do a better job of merging TLSOFF and TLSDESC entries
|
||
in main executables, but perhaps we can get rid of TLSDESC
|
||
entirely in them instead. */
|
||
/* Whether a GOTTLSDESC relocation references symbol+addend. */
|
||
unsigned tlsdesc12:1;
|
||
unsigned tlsdesclos:1;
|
||
unsigned tlsdeschilo:1;
|
||
/* Whether a GOTTLSOFF relocation references symbol+addend. */
|
||
unsigned tlsoff12:1;
|
||
unsigned tlsofflos:1;
|
||
unsigned tlsoffhilo:1;
|
||
/* Whether symbol+addend is referenced with GOTOFF12, GOTOFFLO or
|
||
GOTOFFHI relocations. The addend doesn't really matter, since we
|
||
envision that this will only be used to check whether the symbol
|
||
is mapped to the same segment as the got. */
|
||
unsigned gotoff:1;
|
||
/* Whether symbol+addend is referenced by a LABEL24 relocation. */
|
||
unsigned call:1;
|
||
/* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
|
||
relocation. */
|
||
unsigned sym:1;
|
||
/* Whether we need a PLT entry for a symbol. Should be implied by
|
||
something like:
|
||
(call && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)) */
|
||
unsigned plt:1;
|
||
/* Whether a function descriptor should be created in this link unit
|
||
for symbol+addend. Should be implied by something like:
|
||
(plt || fdgotoff12 || fdgotofflos || fdgotofflohi
|
||
|| ((fd || fdgot12 || fdgotlos || fdgothilo)
|
||
&& (symndx != -1 || FRVFDPIC_FUNCDESC_LOCAL (info, d.h)))) */
|
||
unsigned privfd:1;
|
||
/* Whether a lazy PLT entry is needed for this symbol+addend.
|
||
Should be implied by something like:
|
||
(privfd && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)
|
||
&& ! (info->flags & DF_BIND_NOW)) */
|
||
unsigned lazyplt:1;
|
||
/* Whether we've already emitted GOT relocations and PLT entries as
|
||
needed for this symbol. */
|
||
unsigned done:1;
|
||
|
||
/* The number of R_FRV_32, R_FRV_FUNCDESC, R_FRV_FUNCDESC_VALUE and
|
||
R_FRV_TLSDESC_VALUE, R_FRV_TLSOFF relocations referencing
|
||
symbol+addend. */
|
||
unsigned relocs32, relocsfd, relocsfdv, relocstlsd, relocstlsoff;
|
||
|
||
/* The number of .rofixups entries and dynamic relocations allocated
|
||
for this symbol, minus any that might have already been used. */
|
||
unsigned fixups, dynrelocs;
|
||
|
||
/* The offsets of the GOT entries assigned to symbol+addend, to the
|
||
function descriptor's address, and to a function descriptor,
|
||
respectively. Should be zero if unassigned. The offsets are
|
||
counted from the value that will be assigned to the PIC register,
|
||
not from the beginning of the .got section. */
|
||
bfd_signed_vma got_entry, fdgot_entry, fd_entry;
|
||
/* The offsets of the PLT entries assigned to symbol+addend,
|
||
non-lazy and lazy, respectively. If unassigned, should be
|
||
(bfd_vma)-1. */
|
||
bfd_vma plt_entry, lzplt_entry;
|
||
/* The offsets of the GOT entries for TLS offset and TLS descriptor. */
|
||
bfd_signed_vma tlsoff_entry, tlsdesc_entry;
|
||
/* The offset of the TLS offset PLT entry. */
|
||
bfd_vma tlsplt_entry;
|
||
};
|
||
|
||
/* Compute a hash with the key fields of an frvfdpic_relocs_info entry. */
|
||
static hashval_t
|
||
frvfdpic_relocs_info_hash (const void *entry_)
|
||
{
|
||
const struct frvfdpic_relocs_info *entry = entry_;
|
||
|
||
return (entry->symndx == -1
|
||
? (long) entry->d.h->root.root.hash
|
||
: entry->symndx + (long) entry->d.abfd->id * 257) + entry->addend;
|
||
}
|
||
|
||
/* Test whether the key fields of two frvfdpic_relocs_info entries are
|
||
identical. */
|
||
static int
|
||
frvfdpic_relocs_info_eq (const void *entry1, const void *entry2)
|
||
{
|
||
const struct frvfdpic_relocs_info *e1 = entry1;
|
||
const struct frvfdpic_relocs_info *e2 = entry2;
|
||
|
||
return e1->symndx == e2->symndx && e1->addend == e2->addend
|
||
&& (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
|
||
}
|
||
|
||
/* Find or create an entry in a hash table HT that matches the key
|
||
fields of the given ENTRY. If it's not found, memory for a new
|
||
entry is allocated in ABFD's obstack. */
|
||
static struct frvfdpic_relocs_info *
|
||
frvfdpic_relocs_info_find (struct htab *ht,
|
||
bfd *abfd,
|
||
const struct frvfdpic_relocs_info *entry,
|
||
enum insert_option insert)
|
||
{
|
||
struct frvfdpic_relocs_info **loc =
|
||
(struct frvfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
|
||
|
||
if (! loc)
|
||
return NULL;
|
||
|
||
if (*loc)
|
||
return *loc;
|
||
|
||
*loc = bfd_zalloc (abfd, sizeof (**loc));
|
||
|
||
if (! *loc)
|
||
return *loc;
|
||
|
||
(*loc)->symndx = entry->symndx;
|
||
(*loc)->d = entry->d;
|
||
(*loc)->addend = entry->addend;
|
||
(*loc)->plt_entry = (bfd_vma)-1;
|
||
(*loc)->lzplt_entry = (bfd_vma)-1;
|
||
(*loc)->tlsplt_entry = (bfd_vma)-1;
|
||
|
||
return *loc;
|
||
}
|
||
|
||
/* Obtain the address of the entry in HT associated with H's symbol +
|
||
addend, creating a new entry if none existed. ABFD is only used
|
||
for memory allocation purposes. */
|
||
inline static struct frvfdpic_relocs_info *
|
||
frvfdpic_relocs_info_for_global (struct htab *ht,
|
||
bfd *abfd,
|
||
struct elf_link_hash_entry *h,
|
||
bfd_vma addend,
|
||
enum insert_option insert)
|
||
{
|
||
struct frvfdpic_relocs_info entry;
|
||
|
||
entry.symndx = -1;
|
||
entry.d.h = h;
|
||
entry.addend = addend;
|
||
|
||
return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
|
||
}
|
||
|
||
/* Obtain the address of the entry in HT associated with the SYMNDXth
|
||
local symbol of the input bfd ABFD, plus the addend, creating a new
|
||
entry if none existed. */
|
||
inline static struct frvfdpic_relocs_info *
|
||
frvfdpic_relocs_info_for_local (struct htab *ht,
|
||
bfd *abfd,
|
||
long symndx,
|
||
bfd_vma addend,
|
||
enum insert_option insert)
|
||
{
|
||
struct frvfdpic_relocs_info entry;
|
||
|
||
entry.symndx = symndx;
|
||
entry.d.abfd = abfd;
|
||
entry.addend = addend;
|
||
|
||
return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
|
||
}
|
||
|
||
/* Merge fields set by check_relocs() of two entries that end up being
|
||
mapped to the same (presumably global) symbol. */
|
||
|
||
inline static void
|
||
frvfdpic_pic_merge_early_relocs_info (struct frvfdpic_relocs_info *e2,
|
||
struct frvfdpic_relocs_info const *e1)
|
||
{
|
||
e2->got12 |= e1->got12;
|
||
e2->gotlos |= e1->gotlos;
|
||
e2->gothilo |= e1->gothilo;
|
||
e2->fd |= e1->fd;
|
||
e2->fdgot12 |= e1->fdgot12;
|
||
e2->fdgotlos |= e1->fdgotlos;
|
||
e2->fdgothilo |= e1->fdgothilo;
|
||
e2->fdgoff12 |= e1->fdgoff12;
|
||
e2->fdgofflos |= e1->fdgofflos;
|
||
e2->fdgoffhilo |= e1->fdgoffhilo;
|
||
e2->tlsplt |= e1->tlsplt;
|
||
e2->tlsdesc12 |= e1->tlsdesc12;
|
||
e2->tlsdesclos |= e1->tlsdesclos;
|
||
e2->tlsdeschilo |= e1->tlsdeschilo;
|
||
e2->tlsoff12 |= e1->tlsoff12;
|
||
e2->tlsofflos |= e1->tlsofflos;
|
||
e2->tlsoffhilo |= e1->tlsoffhilo;
|
||
e2->gotoff |= e1->gotoff;
|
||
e2->call |= e1->call;
|
||
e2->sym |= e1->sym;
|
||
}
|
||
|
||
/* Every block of 65535 lazy PLT entries shares a single call to the
|
||
resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
|
||
32767, counting from 0). All other lazy PLT entries branch to it
|
||
in a single instruction. */
|
||
|
||
#define FRVFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) 8 * 65535 + 4)
|
||
#define FRVFDPIC_LZPLT_RESOLV_LOC (8 * 32767)
|
||
|
||
/* Add a dynamic relocation to the SRELOC section. */
|
||
|
||
inline static bfd_vma
|
||
_frvfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
|
||
int reloc_type, long dynindx, bfd_vma addend,
|
||
struct frvfdpic_relocs_info *entry)
|
||
{
|
||
Elf_Internal_Rela outrel;
|
||
bfd_vma reloc_offset;
|
||
|
||
outrel.r_offset = offset;
|
||
outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
|
||
outrel.r_addend = addend;
|
||
|
||
reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
|
||
BFD_ASSERT (reloc_offset < sreloc->size);
|
||
bfd_elf32_swap_reloc_out (output_bfd, &outrel,
|
||
sreloc->contents + reloc_offset);
|
||
sreloc->reloc_count++;
|
||
|
||
/* If the entry's index is zero, this relocation was probably to a
|
||
linkonce section that got discarded. We reserved a dynamic
|
||
relocation, but it was for another entry than the one we got at
|
||
the time of emitting the relocation. Unfortunately there's no
|
||
simple way for us to catch this situation, since the relocation
|
||
is cleared right before calling relocate_section, at which point
|
||
we no longer know what the relocation used to point to. */
|
||
if (entry->symndx)
|
||
{
|
||
BFD_ASSERT (entry->dynrelocs > 0);
|
||
entry->dynrelocs--;
|
||
}
|
||
|
||
return reloc_offset;
|
||
}
|
||
|
||
/* Add a fixup to the ROFIXUP section. */
|
||
|
||
static bfd_vma
|
||
_frvfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
|
||
struct frvfdpic_relocs_info *entry)
|
||
{
|
||
bfd_vma fixup_offset;
|
||
|
||
if (rofixup->flags & SEC_EXCLUDE)
|
||
return -1;
|
||
|
||
fixup_offset = rofixup->reloc_count * 4;
|
||
if (rofixup->contents)
|
||
{
|
||
BFD_ASSERT (fixup_offset < rofixup->size);
|
||
bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
|
||
}
|
||
rofixup->reloc_count++;
|
||
|
||
if (entry && entry->symndx)
|
||
{
|
||
/* See discussion about symndx == 0 in _frvfdpic_add_dyn_reloc
|
||
above. */
|
||
BFD_ASSERT (entry->fixups > 0);
|
||
entry->fixups--;
|
||
}
|
||
|
||
return fixup_offset;
|
||
}
|
||
|
||
/* Find the segment number in which OSEC, and output section, is
|
||
located. */
|
||
|
||
static unsigned
|
||
_frvfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
|
||
{
|
||
Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
|
||
|
||
return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
|
||
}
|
||
|
||
inline static bfd_boolean
|
||
_frvfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
|
||
{
|
||
unsigned seg = _frvfdpic_osec_to_segment (output_bfd, osec);
|
||
|
||
return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
|
||
}
|
||
|
||
#define FRVFDPIC_TLS_BIAS (2048 - 16)
|
||
|
||
/* Return the base VMA address which should be subtracted from real addresses
|
||
when resolving TLSMOFF relocation.
|
||
This is PT_TLS segment p_vaddr, plus the 2048-16 bias. */
|
||
|
||
static bfd_vma
|
||
tls_biased_base (struct bfd_link_info *info)
|
||
{
|
||
/* If tls_sec is NULL, we should have signalled an error already. */
|
||
if (elf_hash_table (info)->tls_sec == NULL)
|
||
return FRVFDPIC_TLS_BIAS;
|
||
return elf_hash_table (info)->tls_sec->vma + FRVFDPIC_TLS_BIAS;
|
||
}
|
||
|
||
/* Generate relocations for GOT entries, function descriptors, and
|
||
code for PLT and lazy PLT entries. */
|
||
|
||
inline static bfd_boolean
|
||
_frvfdpic_emit_got_relocs_plt_entries (struct frvfdpic_relocs_info *entry,
|
||
bfd *output_bfd,
|
||
struct bfd_link_info *info,
|
||
asection *sec,
|
||
Elf_Internal_Sym *sym,
|
||
bfd_vma addend)
|
||
|
||
{
|
||
bfd_vma fd_lazy_rel_offset = (bfd_vma)-1;
|
||
int dynindx = -1;
|
||
|
||
if (entry->done)
|
||
return TRUE;
|
||
entry->done = 1;
|
||
|
||
if (entry->got_entry || entry->fdgot_entry || entry->fd_entry
|
||
|| entry->tlsoff_entry || entry->tlsdesc_entry)
|
||
{
|
||
/* If the symbol is dynamic, consider it for dynamic
|
||
relocations, otherwise decay to section + offset. */
|
||
if (entry->symndx == -1 && entry->d.h->dynindx != -1)
|
||
dynindx = entry->d.h->dynindx;
|
||
else
|
||
{
|
||
if (sec
|
||
&& sec->output_section
|
||
&& ! bfd_is_abs_section (sec->output_section)
|
||
&& ! bfd_is_und_section (sec->output_section))
|
||
dynindx = elf_section_data (sec->output_section)->dynindx;
|
||
else
|
||
dynindx = 0;
|
||
}
|
||
}
|
||
|
||
/* Generate relocation for GOT entry pointing to the symbol. */
|
||
if (entry->got_entry)
|
||
{
|
||
int idx = dynindx;
|
||
bfd_vma ad = addend;
|
||
|
||
/* If the symbol is dynamic but binds locally, use
|
||
section+offset. */
|
||
if (sec && (entry->symndx != -1
|
||
|| FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
|
||
{
|
||
if (entry->symndx == -1)
|
||
ad += entry->d.h->root.u.def.value;
|
||
else
|
||
ad += sym->st_value;
|
||
ad += sec->output_offset;
|
||
if (sec->output_section && elf_section_data (sec->output_section))
|
||
idx = elf_section_data (sec->output_section)->dynindx;
|
||
else
|
||
idx = 0;
|
||
}
|
||
|
||
/* If we're linking an executable at a fixed address, we can
|
||
omit the dynamic relocation as long as the symbol is local to
|
||
this module. */
|
||
if (bfd_link_pde (info)
|
||
&& (entry->symndx != -1
|
||
|| FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
|
||
{
|
||
if (sec)
|
||
ad += sec->output_section->vma;
|
||
if (entry->symndx != -1
|
||
|| entry->d.h->root.type != bfd_link_hash_undefweak)
|
||
_frvfdpic_add_rofixup (output_bfd,
|
||
frvfdpic_gotfixup_section (info),
|
||
frvfdpic_got_section (info)->output_section
|
||
->vma
|
||
+ frvfdpic_got_section (info)->output_offset
|
||
+ frvfdpic_got_initial_offset (info)
|
||
+ entry->got_entry, entry);
|
||
}
|
||
else
|
||
_frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
|
||
_bfd_elf_section_offset
|
||
(output_bfd, info,
|
||
frvfdpic_got_section (info),
|
||
frvfdpic_got_initial_offset (info)
|
||
+ entry->got_entry)
|
||
+ frvfdpic_got_section (info)
|
||
->output_section->vma
|
||
+ frvfdpic_got_section (info)->output_offset,
|
||
R_FRV_32, idx, ad, entry);
|
||
|
||
bfd_put_32 (output_bfd, ad,
|
||
frvfdpic_got_section (info)->contents
|
||
+ frvfdpic_got_initial_offset (info)
|
||
+ entry->got_entry);
|
||
}
|
||
|
||
/* Generate relocation for GOT entry pointing to a canonical
|
||
function descriptor. */
|
||
if (entry->fdgot_entry)
|
||
{
|
||
int reloc, idx;
|
||
bfd_vma ad = 0;
|
||
|
||
if (! (entry->symndx == -1
|
||
&& entry->d.h->root.type == bfd_link_hash_undefweak
|
||
&& FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
|
||
{
|
||
/* If the symbol is dynamic and there may be dynamic symbol
|
||
resolution because we are, or are linked with, a shared
|
||
library, emit a FUNCDESC relocation such that the dynamic
|
||
linker will allocate the function descriptor. If the
|
||
symbol needs a non-local function descriptor but binds
|
||
locally (e.g., its visibility is protected, emit a
|
||
dynamic relocation decayed to section+offset. */
|
||
if (entry->symndx == -1
|
||
&& ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
|
||
&& FRVFDPIC_SYM_LOCAL (info, entry->d.h)
|
||
&& !bfd_link_pde (info))
|
||
{
|
||
reloc = R_FRV_FUNCDESC;
|
||
idx = elf_section_data (entry->d.h->root.u.def.section
|
||
->output_section)->dynindx;
|
||
ad = entry->d.h->root.u.def.section->output_offset
|
||
+ entry->d.h->root.u.def.value;
|
||
}
|
||
else if (entry->symndx == -1
|
||
&& ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
|
||
{
|
||
reloc = R_FRV_FUNCDESC;
|
||
idx = dynindx;
|
||
ad = addend;
|
||
if (ad)
|
||
{
|
||
(*info->callbacks->reloc_dangerous)
|
||
(info, _("relocation requires zero addend"),
|
||
elf_hash_table (info)->dynobj,
|
||
frvfdpic_got_section (info),
|
||
entry->fdgot_entry);
|
||
return FALSE;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* Otherwise, we know we have a private function descriptor,
|
||
so reference it directly. */
|
||
if (elf_hash_table (info)->dynamic_sections_created)
|
||
BFD_ASSERT (entry->privfd);
|
||
reloc = R_FRV_32;
|
||
idx = elf_section_data (frvfdpic_got_section (info)
|
||
->output_section)->dynindx;
|
||
ad = frvfdpic_got_section (info)->output_offset
|
||
+ frvfdpic_got_initial_offset (info) + entry->fd_entry;
|
||
}
|
||
|
||
/* If there is room for dynamic symbol resolution, emit the
|
||
dynamic relocation. However, if we're linking an
|
||
executable at a fixed location, we won't have emitted a
|
||
dynamic symbol entry for the got section, so idx will be
|
||
zero, which means we can and should compute the address
|
||
of the private descriptor ourselves. */
|
||
if (bfd_link_pde (info)
|
||
&& (entry->symndx != -1
|
||
|| FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
|
||
{
|
||
ad += frvfdpic_got_section (info)->output_section->vma;
|
||
_frvfdpic_add_rofixup (output_bfd,
|
||
frvfdpic_gotfixup_section (info),
|
||
frvfdpic_got_section (info)
|
||
->output_section->vma
|
||
+ frvfdpic_got_section (info)
|
||
->output_offset
|
||
+ frvfdpic_got_initial_offset (info)
|
||
+ entry->fdgot_entry, entry);
|
||
}
|
||
else
|
||
_frvfdpic_add_dyn_reloc (output_bfd,
|
||
frvfdpic_gotrel_section (info),
|
||
_bfd_elf_section_offset
|
||
(output_bfd, info,
|
||
frvfdpic_got_section (info),
|
||
frvfdpic_got_initial_offset (info)
|
||
+ entry->fdgot_entry)
|
||
+ frvfdpic_got_section (info)
|
||
->output_section->vma
|
||
+ frvfdpic_got_section (info)
|
||
->output_offset,
|
||
reloc, idx, ad, entry);
|
||
}
|
||
|
||
bfd_put_32 (output_bfd, ad,
|
||
frvfdpic_got_section (info)->contents
|
||
+ frvfdpic_got_initial_offset (info)
|
||
+ entry->fdgot_entry);
|
||
}
|
||
|
||
/* Generate relocation to fill in a private function descriptor in
|
||
the GOT. */
|
||
if (entry->fd_entry)
|
||
{
|
||
int idx = dynindx;
|
||
bfd_vma ad = addend;
|
||
bfd_vma ofst;
|
||
long lowword, highword;
|
||
|
||
/* If the symbol is dynamic but binds locally, use
|
||
section+offset. */
|
||
if (sec && (entry->symndx != -1
|
||
|| FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
|
||
{
|
||
if (entry->symndx == -1)
|
||
ad += entry->d.h->root.u.def.value;
|
||
else
|
||
ad += sym->st_value;
|
||
ad += sec->output_offset;
|
||
if (sec->output_section && elf_section_data (sec->output_section))
|
||
idx = elf_section_data (sec->output_section)->dynindx;
|
||
else
|
||
idx = 0;
|
||
}
|
||
|
||
/* If we're linking an executable at a fixed address, we can
|
||
omit the dynamic relocation as long as the symbol is local to
|
||
this module. */
|
||
if (bfd_link_pde (info)
|
||
&& (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
|
||
{
|
||
if (sec)
|
||
ad += sec->output_section->vma;
|
||
ofst = 0;
|
||
if (entry->symndx != -1
|
||
|| entry->d.h->root.type != bfd_link_hash_undefweak)
|
||
{
|
||
_frvfdpic_add_rofixup (output_bfd,
|
||
frvfdpic_gotfixup_section (info),
|
||
frvfdpic_got_section (info)
|
||
->output_section->vma
|
||
+ frvfdpic_got_section (info)
|
||
->output_offset
|
||
+ frvfdpic_got_initial_offset (info)
|
||
+ entry->fd_entry, entry);
|
||
_frvfdpic_add_rofixup (output_bfd,
|
||
frvfdpic_gotfixup_section (info),
|
||
frvfdpic_got_section (info)
|
||
->output_section->vma
|
||
+ frvfdpic_got_section (info)
|
||
->output_offset
|
||
+ frvfdpic_got_initial_offset (info)
|
||
+ entry->fd_entry + 4, entry);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
ofst =
|
||
_frvfdpic_add_dyn_reloc (output_bfd,
|
||
entry->lazyplt
|
||
? frvfdpic_pltrel_section (info)
|
||
: frvfdpic_gotrel_section (info),
|
||
_bfd_elf_section_offset
|
||
(output_bfd, info,
|
||
frvfdpic_got_section (info),
|
||
frvfdpic_got_initial_offset (info)
|
||
+ entry->fd_entry)
|
||
+ frvfdpic_got_section (info)
|
||
->output_section->vma
|
||
+ frvfdpic_got_section (info)
|
||
->output_offset,
|
||
R_FRV_FUNCDESC_VALUE, idx, ad, entry);
|
||
}
|
||
|
||
/* If we've omitted the dynamic relocation, just emit the fixed
|
||
addresses of the symbol and of the local GOT base offset. */
|
||
if (bfd_link_pde (info)
|
||
&& sec
|
||
&& sec->output_section)
|
||
{
|
||
lowword = ad;
|
||
highword = frvfdpic_got_section (info)->output_section->vma
|
||
+ frvfdpic_got_section (info)->output_offset
|
||
+ frvfdpic_got_initial_offset (info);
|
||
}
|
||
else if (entry->lazyplt)
|
||
{
|
||
if (ad)
|
||
{
|
||
(*info->callbacks->reloc_dangerous)
|
||
(info, _("relocation requires zero addend"),
|
||
elf_hash_table (info)->dynobj,
|
||
frvfdpic_got_section (info),
|
||
entry->fd_entry);
|
||
return FALSE;
|
||
}
|
||
|
||
fd_lazy_rel_offset = ofst;
|
||
|
||
/* A function descriptor used for lazy or local resolving is
|
||
initialized such that its high word contains the output
|
||
section index in which the PLT entries are located, and
|
||
the low word contains the address of the lazy PLT entry
|
||
entry point, that must be within the memory region
|
||
assigned to that section. */
|
||
lowword = entry->lzplt_entry + 4
|
||
+ frvfdpic_plt_section (info)->output_offset
|
||
+ frvfdpic_plt_section (info)->output_section->vma;
|
||
highword = _frvfdpic_osec_to_segment
|
||
(output_bfd, frvfdpic_plt_section (info)->output_section);
|
||
}
|
||
else
|
||
{
|
||
/* A function descriptor for a local function gets the index
|
||
of the section. For a non-local function, it's
|
||
disregarded. */
|
||
lowword = ad;
|
||
if (sec == NULL
|
||
|| (entry->symndx == -1 && entry->d.h->dynindx != -1
|
||
&& entry->d.h->dynindx == idx))
|
||
highword = 0;
|
||
else
|
||
highword = _frvfdpic_osec_to_segment
|
||
(output_bfd, sec->output_section);
|
||
}
|
||
|
||
bfd_put_32 (output_bfd, lowword,
|
||
frvfdpic_got_section (info)->contents
|
||
+ frvfdpic_got_initial_offset (info)
|
||
+ entry->fd_entry);
|
||
bfd_put_32 (output_bfd, highword,
|
||
frvfdpic_got_section (info)->contents
|
||
+ frvfdpic_got_initial_offset (info)
|
||
+ entry->fd_entry + 4);
|
||
}
|
||
|
||
/* Generate code for the PLT entry. */
|
||
if (entry->plt_entry != (bfd_vma) -1)
|
||
{
|
||
bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
|
||
+ entry->plt_entry;
|
||
|
||
BFD_ASSERT (entry->fd_entry);
|
||
|
||
/* Figure out what kind of PLT entry we need, depending on the
|
||
location of the function descriptor within the GOT. */
|
||
if (entry->fd_entry >= -(1 << (12 - 1))
|
||
&& entry->fd_entry < (1 << (12 - 1)))
|
||
{
|
||
/* lddi @(gr15, fd_entry), gr14 */
|
||
bfd_put_32 (output_bfd,
|
||
0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)),
|
||
plt_code);
|
||
plt_code += 4;
|
||
}
|
||
else
|
||
{
|
||
if (entry->fd_entry >= -(1 << (16 - 1))
|
||
&& entry->fd_entry < (1 << (16 - 1)))
|
||
{
|
||
/* setlos lo(fd_entry), gr14 */
|
||
bfd_put_32 (output_bfd,
|
||
0x9cfc0000
|
||
| (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
|
||
plt_code);
|
||
plt_code += 4;
|
||
}
|
||
else
|
||
{
|
||
/* sethi.p hi(fd_entry), gr14
|
||
setlo lo(fd_entry), gr14 */
|
||
bfd_put_32 (output_bfd,
|
||
0x1cf80000
|
||
| ((entry->fd_entry >> 16)
|
||
& (((bfd_vma)1 << 16) - 1)),
|
||
plt_code);
|
||
plt_code += 4;
|
||
bfd_put_32 (output_bfd,
|
||
0x9cf40000
|
||
| (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
|
||
plt_code);
|
||
plt_code += 4;
|
||
}
|
||
/* ldd @(gr14,gr15),gr14 */
|
||
bfd_put_32 (output_bfd, 0x9c08e14f, plt_code);
|
||
plt_code += 4;
|
||
}
|
||
/* jmpl @(gr14,gr0) */
|
||
bfd_put_32 (output_bfd, 0x8030e000, plt_code);
|
||
}
|
||
|
||
/* Generate code for the lazy PLT entry. */
|
||
if (entry->lzplt_entry != (bfd_vma) -1)
|
||
{
|
||
bfd_byte *lzplt_code = frvfdpic_plt_section (info)->contents
|
||
+ entry->lzplt_entry;
|
||
bfd_vma resolverStub_addr;
|
||
|
||
bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
|
||
lzplt_code += 4;
|
||
|
||
resolverStub_addr = entry->lzplt_entry / FRVFDPIC_LZPLT_BLOCK_SIZE
|
||
* FRVFDPIC_LZPLT_BLOCK_SIZE + FRVFDPIC_LZPLT_RESOLV_LOC;
|
||
if (resolverStub_addr >= frvfdpic_plt_initial_offset (info))
|
||
resolverStub_addr = frvfdpic_plt_initial_offset (info) - 12;
|
||
|
||
if (entry->lzplt_entry == resolverStub_addr)
|
||
{
|
||
/* This is a lazy PLT entry that includes a resolver call. */
|
||
/* ldd @(gr15,gr0), gr4
|
||
jmpl @(gr4,gr0) */
|
||
bfd_put_32 (output_bfd, 0x8808f140, lzplt_code);
|
||
bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4);
|
||
}
|
||
else
|
||
{
|
||
/* bra resolverStub */
|
||
bfd_put_32 (output_bfd,
|
||
0xc01a0000
|
||
| (((resolverStub_addr - entry->lzplt_entry)
|
||
/ 4) & (((bfd_vma)1 << 16) - 1)),
|
||
lzplt_code);
|
||
}
|
||
}
|
||
|
||
/* Generate relocation for GOT entry holding the TLS offset. */
|
||
if (entry->tlsoff_entry)
|
||
{
|
||
int idx = dynindx;
|
||
bfd_vma ad = addend;
|
||
|
||
if (entry->symndx != -1
|
||
|| FRVFDPIC_SYM_LOCAL (info, entry->d.h))
|
||
{
|
||
/* If the symbol is dynamic but binds locally, use
|
||
section+offset. */
|
||
if (sec)
|
||
{
|
||
if (entry->symndx == -1)
|
||
ad += entry->d.h->root.u.def.value;
|
||
else
|
||
ad += sym->st_value;
|
||
ad += sec->output_offset;
|
||
if (sec->output_section
|
||
&& elf_section_data (sec->output_section))
|
||
idx = elf_section_data (sec->output_section)->dynindx;
|
||
else
|
||
idx = 0;
|
||
}
|
||
}
|
||
|
||
/* *ABS*+addend is special for TLS relocations, use only the
|
||
addend. */
|
||
if (bfd_link_executable (info)
|
||
&& idx == 0
|
||
&& (bfd_is_abs_section (sec)
|
||
|| bfd_is_und_section (sec)))
|
||
;
|
||
/* If we're linking an executable, we can entirely omit the
|
||
dynamic relocation if the symbol is local to this module. */
|
||
else if (bfd_link_executable (info)
|
||
&& (entry->symndx != -1
|
||
|| FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
|
||
{
|
||
if (sec)
|
||
ad += sec->output_section->vma - tls_biased_base (info);
|
||
}
|
||
else
|
||
{
|
||
if (idx == 0
|
||
&& (bfd_is_abs_section (sec)
|
||
|| bfd_is_und_section (sec)))
|
||
{
|
||
if (! elf_hash_table (info)->tls_sec)
|
||
{
|
||
(*info->callbacks->undefined_symbol)
|
||
(info, "TLS section", elf_hash_table (info)->dynobj,
|
||
frvfdpic_got_section (info), entry->tlsoff_entry, TRUE);
|
||
return FALSE;
|
||
}
|
||
idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
|
||
ad += FRVFDPIC_TLS_BIAS;
|
||
}
|
||
_frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
|
||
_bfd_elf_section_offset
|
||
(output_bfd, info,
|
||
frvfdpic_got_section (info),
|
||
frvfdpic_got_initial_offset (info)
|
||
+ entry->tlsoff_entry)
|
||
+ frvfdpic_got_section (info)
|
||
->output_section->vma
|
||
+ frvfdpic_got_section (info)
|
||
->output_offset,
|
||
R_FRV_TLSOFF, idx, ad, entry);
|
||
}
|
||
|
||
bfd_put_32 (output_bfd, ad,
|
||
frvfdpic_got_section (info)->contents
|
||
+ frvfdpic_got_initial_offset (info)
|
||
+ entry->tlsoff_entry);
|
||
}
|
||
|
||
if (entry->tlsdesc_entry)
|
||
{
|
||
int idx = dynindx;
|
||
bfd_vma ad = addend;
|
||
|
||
/* If the symbol is dynamic but binds locally, use
|
||
section+offset. */
|
||
if (sec && (entry->symndx != -1
|
||
|| FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
|
||
{
|
||
if (entry->symndx == -1)
|
||
ad += entry->d.h->root.u.def.value;
|
||
else
|
||
ad += sym->st_value;
|
||
ad += sec->output_offset;
|
||
if (sec->output_section && elf_section_data (sec->output_section))
|
||
idx = elf_section_data (sec->output_section)->dynindx;
|
||
else
|
||
idx = 0;
|
||
}
|
||
|
||
/* If we didn't set up a TLS offset entry, but we're linking an
|
||
executable and the symbol binds locally, we can use the
|
||
module offset in the TLS descriptor in relaxations. */
|
||
if (bfd_link_executable (info) && ! entry->tlsoff_entry)
|
||
entry->tlsoff_entry = entry->tlsdesc_entry + 4;
|
||
|
||
if (bfd_link_pde (info)
|
||
&& ((idx == 0
|
||
&& (bfd_is_abs_section (sec)
|
||
|| bfd_is_und_section (sec)))
|
||
|| entry->symndx != -1
|
||
|| FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
|
||
{
|
||
/* *ABS*+addend is special for TLS relocations, use only the
|
||
addend for the TLS offset, and take the module id as
|
||
0. */
|
||
if (idx == 0
|
||
&& (bfd_is_abs_section (sec)
|
||
|| bfd_is_und_section (sec)))
|
||
;
|
||
/* For other TLS symbols that bind locally, add the section
|
||
TLS offset to the addend. */
|
||
else if (sec)
|
||
ad += sec->output_section->vma - tls_biased_base (info);
|
||
|
||
bfd_put_32 (output_bfd,
|
||
frvfdpic_plt_section (info)->output_section->vma
|
||
+ frvfdpic_plt_section (info)->output_offset
|
||
+ frvfdpic_plt_tls_ret_offset (info),
|
||
frvfdpic_got_section (info)->contents
|
||
+ frvfdpic_got_initial_offset (info)
|
||
+ entry->tlsdesc_entry);
|
||
|
||
_frvfdpic_add_rofixup (output_bfd,
|
||
frvfdpic_gotfixup_section (info),
|
||
frvfdpic_got_section (info)
|
||
->output_section->vma
|
||
+ frvfdpic_got_section (info)
|
||
->output_offset
|
||
+ frvfdpic_got_initial_offset (info)
|
||
+ entry->tlsdesc_entry, entry);
|
||
|
||
BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs);
|
||
|
||
/* We've used one of the reserved fixups, so discount it so
|
||
that we can check at the end that we've used them
|
||
all. */
|
||
frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs--;
|
||
|
||
/* While at that, make sure the ret instruction makes to the
|
||
right location in the PLT. We could do it only when we
|
||
got to 0, but since the check at the end will only print
|
||
a warning, make sure we have the ret in place in case the
|
||
warning is missed. */
|
||
bfd_put_32 (output_bfd, 0xc03a4000,
|
||
frvfdpic_plt_section (info)->contents
|
||
+ frvfdpic_plt_tls_ret_offset (info));
|
||
}
|
||
else
|
||
{
|
||
if (idx == 0
|
||
&& (bfd_is_abs_section (sec)
|
||
|| bfd_is_und_section (sec)))
|
||
{
|
||
if (! elf_hash_table (info)->tls_sec)
|
||
{
|
||
(*info->callbacks->undefined_symbol)
|
||
(info, "TLS section", elf_hash_table (info)->dynobj,
|
||
frvfdpic_got_section (info), entry->tlsdesc_entry, TRUE);
|
||
return FALSE;
|
||
}
|
||
idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
|
||
ad += FRVFDPIC_TLS_BIAS;
|
||
}
|
||
|
||
_frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
|
||
_bfd_elf_section_offset
|
||
(output_bfd, info,
|
||
frvfdpic_got_section (info),
|
||
frvfdpic_got_initial_offset (info)
|
||
+ entry->tlsdesc_entry)
|
||
+ frvfdpic_got_section (info)
|
||
->output_section->vma
|
||
+ frvfdpic_got_section (info)
|
||
->output_offset,
|
||
R_FRV_TLSDESC_VALUE, idx, ad, entry);
|
||
|
||
bfd_put_32 (output_bfd, 0,
|
||
frvfdpic_got_section (info)->contents
|
||
+ frvfdpic_got_initial_offset (info)
|
||
+ entry->tlsdesc_entry);
|
||
}
|
||
|
||
bfd_put_32 (output_bfd, ad,
|
||
frvfdpic_got_section (info)->contents
|
||
+ frvfdpic_got_initial_offset (info)
|
||
+ entry->tlsdesc_entry + 4);
|
||
}
|
||
|
||
/* Generate code for the get-TLS-offset PLT entry. */
|
||
if (entry->tlsplt_entry != (bfd_vma) -1)
|
||
{
|
||
bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
|
||
+ entry->tlsplt_entry;
|
||
|
||
if (bfd_link_executable (info)
|
||
&& (entry->symndx != -1
|
||
|| FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
|
||
{
|
||
int idx = dynindx;
|
||
bfd_vma ad = addend;
|
||
|
||
/* sec may be NULL when referencing an undefweak symbol
|
||
while linking a static executable. */
|
||
if (!sec)
|
||
{
|
||
BFD_ASSERT (entry->symndx == -1
|
||
&& entry->d.h->root.type == bfd_link_hash_undefweak);
|
||
}
|
||
else
|
||
{
|
||
if (entry->symndx == -1)
|
||
ad += entry->d.h->root.u.def.value;
|
||
else
|
||
ad += sym->st_value;
|
||
ad += sec->output_offset;
|
||
if (sec->output_section
|
||
&& elf_section_data (sec->output_section))
|
||
idx = elf_section_data (sec->output_section)->dynindx;
|
||
else
|
||
idx = 0;
|
||
}
|
||
|
||
/* *ABS*+addend is special for TLS relocations, use only the
|
||
addend for the TLS offset, and take the module id as
|
||
0. */
|
||
if (idx == 0
|
||
&& (bfd_is_abs_section (sec)
|
||
|| bfd_is_und_section (sec)))
|
||
;
|
||
/* For other TLS symbols that bind locally, add the section
|
||
TLS offset to the addend. */
|
||
else if (sec)
|
||
ad += sec->output_section->vma - tls_biased_base (info);
|
||
|
||
if ((bfd_signed_vma)ad >= -(1 << (16 - 1))
|
||
&& (bfd_signed_vma)ad < (1 << (16 - 1)))
|
||
{
|
||
/* setlos lo(ad), gr9 */
|
||
bfd_put_32 (output_bfd,
|
||
0x92fc0000
|
||
| (ad
|
||
& (((bfd_vma)1 << 16) - 1)),
|
||
plt_code);
|
||
plt_code += 4;
|
||
}
|
||
else
|
||
{
|
||
/* sethi.p hi(ad), gr9
|
||
setlo lo(ad), gr9 */
|
||
bfd_put_32 (output_bfd,
|
||
0x12f80000
|
||
| ((ad >> 16)
|
||
& (((bfd_vma)1 << 16) - 1)),
|
||
plt_code);
|
||
plt_code += 4;
|
||
bfd_put_32 (output_bfd,
|
||
0x92f40000
|
||
| (ad
|
||
& (((bfd_vma)1 << 16) - 1)),
|
||
plt_code);
|
||
plt_code += 4;
|
||
}
|
||
/* ret */
|
||
bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
|
||
}
|
||
else if (entry->tlsoff_entry)
|
||
{
|
||
/* Figure out what kind of PLT entry we need, depending on the
|
||
location of the TLS descriptor within the GOT. */
|
||
if (entry->tlsoff_entry >= -(1 << (12 - 1))
|
||
&& entry->tlsoff_entry < (1 << (12 - 1)))
|
||
{
|
||
/* ldi @(gr15, tlsoff_entry), gr9 */
|
||
bfd_put_32 (output_bfd,
|
||
0x92c8f000 | (entry->tlsoff_entry
|
||
& ((1 << 12) - 1)),
|
||
plt_code);
|
||
plt_code += 4;
|
||
}
|
||
else
|
||
{
|
||
if (entry->tlsoff_entry >= -(1 << (16 - 1))
|
||
&& entry->tlsoff_entry < (1 << (16 - 1)))
|
||
{
|
||
/* setlos lo(tlsoff_entry), gr8 */
|
||
bfd_put_32 (output_bfd,
|
||
0x90fc0000
|
||
| (entry->tlsoff_entry
|
||
& (((bfd_vma)1 << 16) - 1)),
|
||
plt_code);
|
||
plt_code += 4;
|
||
}
|
||
else
|
||
{
|
||
/* sethi.p hi(tlsoff_entry), gr8
|
||
setlo lo(tlsoff_entry), gr8 */
|
||
bfd_put_32 (output_bfd,
|
||
0x10f80000
|
||
| ((entry->tlsoff_entry >> 16)
|
||
& (((bfd_vma)1 << 16) - 1)),
|
||
plt_code);
|
||
plt_code += 4;
|
||
bfd_put_32 (output_bfd,
|
||
0x90f40000
|
||
| (entry->tlsoff_entry
|
||
& (((bfd_vma)1 << 16) - 1)),
|
||
plt_code);
|
||
plt_code += 4;
|
||
}
|
||
/* ld @(gr15,gr8),gr9 */
|
||
bfd_put_32 (output_bfd, 0x9008f108, plt_code);
|
||
plt_code += 4;
|
||
}
|
||
/* ret */
|
||
bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
|
||
}
|
||
else
|
||
{
|
||
BFD_ASSERT (entry->tlsdesc_entry);
|
||
|
||
/* Figure out what kind of PLT entry we need, depending on the
|
||
location of the TLS descriptor within the GOT. */
|
||
if (entry->tlsdesc_entry >= -(1 << (12 - 1))
|
||
&& entry->tlsdesc_entry < (1 << (12 - 1)))
|
||
{
|
||
/* lddi @(gr15, tlsdesc_entry), gr8 */
|
||
bfd_put_32 (output_bfd,
|
||
0x90ccf000 | (entry->tlsdesc_entry
|
||
& ((1 << 12) - 1)),
|
||
plt_code);
|
||
plt_code += 4;
|
||
}
|
||
else
|
||
{
|
||
if (entry->tlsdesc_entry >= -(1 << (16 - 1))
|
||
&& entry->tlsdesc_entry < (1 << (16 - 1)))
|
||
{
|
||
/* setlos lo(tlsdesc_entry), gr8 */
|
||
bfd_put_32 (output_bfd,
|
||
0x90fc0000
|
||
| (entry->tlsdesc_entry
|
||
& (((bfd_vma)1 << 16) - 1)),
|
||
plt_code);
|
||
plt_code += 4;
|
||
}
|
||
else
|
||
{
|
||
/* sethi.p hi(tlsdesc_entry), gr8
|
||
setlo lo(tlsdesc_entry), gr8 */
|
||
bfd_put_32 (output_bfd,
|
||
0x10f80000
|
||
| ((entry->tlsdesc_entry >> 16)
|
||
& (((bfd_vma)1 << 16) - 1)),
|
||
plt_code);
|
||
plt_code += 4;
|
||
bfd_put_32 (output_bfd,
|
||
0x90f40000
|
||
| (entry->tlsdesc_entry
|
||
& (((bfd_vma)1 << 16) - 1)),
|
||
plt_code);
|
||
plt_code += 4;
|
||
}
|
||
/* ldd @(gr15,gr8),gr8 */
|
||
bfd_put_32 (output_bfd, 0x9008f148, plt_code);
|
||
plt_code += 4;
|
||
}
|
||
/* jmpl @(gr8,gr0) */
|
||
bfd_put_32 (output_bfd, 0x80308000, plt_code);
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Handle an FRV small data reloc. */
|
||
|
||
static bfd_reloc_status_type
|
||
elf32_frv_relocate_gprel12 (struct bfd_link_info *info,
|
||
bfd *input_bfd,
|
||
asection *input_section,
|
||
Elf_Internal_Rela *relocation,
|
||
bfd_byte *contents,
|
||
bfd_vma value)
|
||
{
|
||
bfd_vma insn;
|
||
bfd_vma gp;
|
||
struct bfd_link_hash_entry *h;
|
||
|
||
h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
|
||
|
||
gp = (h->u.def.value
|
||
+ h->u.def.section->output_section->vma
|
||
+ h->u.def.section->output_offset);
|
||
|
||
value -= input_section->output_section->vma;
|
||
value -= (gp - input_section->output_section->vma);
|
||
|
||
insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
|
||
|
||
value += relocation->r_addend;
|
||
|
||
if ((long) value > 0x7ff || (long) value < -0x800)
|
||
return bfd_reloc_overflow;
|
||
|
||
bfd_put_32 (input_bfd,
|
||
(insn & 0xfffff000) | (value & 0xfff),
|
||
contents + relocation->r_offset);
|
||
|
||
return bfd_reloc_ok;
|
||
}
|
||
|
||
/* Handle an FRV small data reloc. for the u12 field. */
|
||
|
||
static bfd_reloc_status_type
|
||
elf32_frv_relocate_gprelu12 (struct bfd_link_info *info,
|
||
bfd *input_bfd,
|
||
asection *input_section,
|
||
Elf_Internal_Rela *relocation,
|
||
bfd_byte *contents,
|
||
bfd_vma value)
|
||
{
|
||
bfd_vma insn;
|
||
bfd_vma gp;
|
||
struct bfd_link_hash_entry *h;
|
||
bfd_vma mask;
|
||
|
||
h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
|
||
|
||
gp = (h->u.def.value
|
||
+ h->u.def.section->output_section->vma
|
||
+ h->u.def.section->output_offset);
|
||
|
||
value -= input_section->output_section->vma;
|
||
value -= (gp - input_section->output_section->vma);
|
||
|
||
insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
|
||
|
||
value += relocation->r_addend;
|
||
|
||
if ((long) value > 0x7ff || (long) value < -0x800)
|
||
return bfd_reloc_overflow;
|
||
|
||
/* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */
|
||
mask = 0x3f03f;
|
||
insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
|
||
|
||
bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
|
||
|
||
return bfd_reloc_ok;
|
||
}
|
||
|
||
/* Handle an FRV ELF HI16 reloc. */
|
||
|
||
static bfd_reloc_status_type
|
||
elf32_frv_relocate_hi16 (bfd *input_bfd,
|
||
Elf_Internal_Rela *relhi,
|
||
bfd_byte *contents,
|
||
bfd_vma value)
|
||
{
|
||
bfd_vma insn;
|
||
|
||
insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
|
||
|
||
value += relhi->r_addend;
|
||
value = ((value >> 16) & 0xffff);
|
||
|
||
insn = (insn & 0xffff0000) | value;
|
||
|
||
if ((long) value > 0xffff || (long) value < -0x10000)
|
||
return bfd_reloc_overflow;
|
||
|
||
bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
|
||
return bfd_reloc_ok;
|
||
|
||
}
|
||
static bfd_reloc_status_type
|
||
elf32_frv_relocate_lo16 (bfd *input_bfd,
|
||
Elf_Internal_Rela *rello,
|
||
bfd_byte *contents,
|
||
bfd_vma value)
|
||
{
|
||
bfd_vma insn;
|
||
|
||
insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
|
||
|
||
value += rello->r_addend;
|
||
value = value & 0xffff;
|
||
|
||
insn = (insn & 0xffff0000) | value;
|
||
|
||
if ((long) value > 0xffff || (long) value < -0x10000)
|
||
return bfd_reloc_overflow;
|
||
|
||
bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
|
||
return bfd_reloc_ok;
|
||
}
|
||
|
||
/* Perform the relocation for the CALL label24 instruction. */
|
||
|
||
static bfd_reloc_status_type
|
||
elf32_frv_relocate_label24 (bfd *input_bfd,
|
||
asection *input_section,
|
||
Elf_Internal_Rela *rello,
|
||
bfd_byte *contents,
|
||
bfd_vma value)
|
||
{
|
||
bfd_vma insn;
|
||
bfd_vma label6;
|
||
bfd_vma label18;
|
||
|
||
/* The format for the call instruction is:
|
||
|
||
0 000000 0001111 000000000000000000
|
||
label6 opcode label18
|
||
|
||
The branch calculation is: pc + (4*label24)
|
||
where label24 is the concatenation of label6 and label18. */
|
||
|
||
/* Grab the instruction. */
|
||
insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
|
||
|
||
value -= input_section->output_section->vma + input_section->output_offset;
|
||
value -= rello->r_offset;
|
||
value += rello->r_addend;
|
||
|
||
value = value >> 2;
|
||
|
||
label6 = value & 0xfc0000;
|
||
label6 = label6 << 7;
|
||
|
||
label18 = value & 0x3ffff;
|
||
|
||
insn = insn & 0x803c0000;
|
||
insn = insn | label6;
|
||
insn = insn | label18;
|
||
|
||
bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
|
||
|
||
return bfd_reloc_ok;
|
||
}
|
||
|
||
static bfd_reloc_status_type
|
||
elf32_frv_relocate_gprelhi (struct bfd_link_info *info,
|
||
bfd *input_bfd,
|
||
asection *input_section,
|
||
Elf_Internal_Rela *relocation,
|
||
bfd_byte *contents,
|
||
bfd_vma value)
|
||
{
|
||
bfd_vma insn;
|
||
bfd_vma gp;
|
||
struct bfd_link_hash_entry *h;
|
||
|
||
h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
|
||
|
||
gp = (h->u.def.value
|
||
+ h->u.def.section->output_section->vma
|
||
+ h->u.def.section->output_offset);
|
||
|
||
value -= input_section->output_section->vma;
|
||
value -= (gp - input_section->output_section->vma);
|
||
value += relocation->r_addend;
|
||
value = ((value >> 16) & 0xffff);
|
||
|
||
if ((long) value > 0xffff || (long) value < -0x10000)
|
||
return bfd_reloc_overflow;
|
||
|
||
insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
|
||
insn = (insn & 0xffff0000) | value;
|
||
|
||
bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
|
||
return bfd_reloc_ok;
|
||
}
|
||
|
||
static bfd_reloc_status_type
|
||
elf32_frv_relocate_gprello (struct bfd_link_info *info,
|
||
bfd *input_bfd,
|
||
asection *input_section,
|
||
Elf_Internal_Rela *relocation,
|
||
bfd_byte *contents,
|
||
bfd_vma value)
|
||
{
|
||
bfd_vma insn;
|
||
bfd_vma gp;
|
||
struct bfd_link_hash_entry *h;
|
||
|
||
h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
|
||
|
||
gp = (h->u.def.value
|
||
+ h->u.def.section->output_section->vma
|
||
+ h->u.def.section->output_offset);
|
||
|
||
value -= input_section->output_section->vma;
|
||
value -= (gp - input_section->output_section->vma);
|
||
value += relocation->r_addend;
|
||
value = value & 0xffff;
|
||
|
||
if ((long) value > 0xffff || (long) value < -0x10000)
|
||
return bfd_reloc_overflow;
|
||
|
||
insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
|
||
insn = (insn & 0xffff0000) | value;
|
||
|
||
bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
|
||
|
||
return bfd_reloc_ok;
|
||
}
|
||
|
||
static reloc_howto_type *
|
||
frv_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
||
bfd_reloc_code_real_type code)
|
||
{
|
||
switch (code)
|
||
{
|
||
default:
|
||
break;
|
||
|
||
case BFD_RELOC_NONE:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_NONE];
|
||
|
||
case BFD_RELOC_32:
|
||
if (elf_elfheader (abfd)->e_type == ET_EXEC
|
||
|| elf_elfheader (abfd)->e_type == ET_DYN)
|
||
return &elf32_frv_rel_32_howto;
|
||
/* Fall through. */
|
||
case BFD_RELOC_CTOR:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_32];
|
||
|
||
case BFD_RELOC_FRV_LABEL16:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
|
||
|
||
case BFD_RELOC_FRV_LABEL24:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
|
||
|
||
case BFD_RELOC_FRV_LO16:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_LO16];
|
||
|
||
case BFD_RELOC_FRV_HI16:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_HI16];
|
||
|
||
case BFD_RELOC_FRV_GPREL12:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
|
||
|
||
case BFD_RELOC_FRV_GPRELU12:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
|
||
|
||
case BFD_RELOC_FRV_GPREL32:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
|
||
|
||
case BFD_RELOC_FRV_GPRELHI:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
|
||
|
||
case BFD_RELOC_FRV_GPRELLO:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
|
||
|
||
case BFD_RELOC_FRV_GOT12:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GOT12];
|
||
|
||
case BFD_RELOC_FRV_GOTHI:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GOTHI];
|
||
|
||
case BFD_RELOC_FRV_GOTLO:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GOTLO];
|
||
|
||
case BFD_RELOC_FRV_FUNCDESC:
|
||
if (elf_elfheader (abfd)->e_type == ET_EXEC
|
||
|| elf_elfheader (abfd)->e_type == ET_DYN)
|
||
return &elf32_frv_rel_funcdesc_howto;
|
||
return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC];
|
||
|
||
case BFD_RELOC_FRV_FUNCDESC_GOT12:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12];
|
||
|
||
case BFD_RELOC_FRV_FUNCDESC_GOTHI:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI];
|
||
|
||
case BFD_RELOC_FRV_FUNCDESC_GOTLO:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO];
|
||
|
||
case BFD_RELOC_FRV_FUNCDESC_VALUE:
|
||
if (elf_elfheader (abfd)->e_type == ET_EXEC
|
||
|| elf_elfheader (abfd)->e_type == ET_DYN)
|
||
return &elf32_frv_rel_funcdesc_value_howto;
|
||
return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE];
|
||
|
||
case BFD_RELOC_FRV_FUNCDESC_GOTOFF12:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12];
|
||
|
||
case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI];
|
||
|
||
case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO];
|
||
|
||
case BFD_RELOC_FRV_GOTOFF12:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12];
|
||
|
||
case BFD_RELOC_FRV_GOTOFFHI:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI];
|
||
|
||
case BFD_RELOC_FRV_GOTOFFLO:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO];
|
||
|
||
case BFD_RELOC_FRV_GETTLSOFF:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF];
|
||
|
||
case BFD_RELOC_FRV_TLSDESC_VALUE:
|
||
if (elf_elfheader (abfd)->e_type == ET_EXEC
|
||
|| elf_elfheader (abfd)->e_type == ET_DYN)
|
||
return &elf32_frv_rel_tlsdesc_value_howto;
|
||
return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_VALUE];
|
||
|
||
case BFD_RELOC_FRV_GOTTLSDESC12:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESC12];
|
||
|
||
case BFD_RELOC_FRV_GOTTLSDESCHI:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCHI];
|
||
|
||
case BFD_RELOC_FRV_GOTTLSDESCLO:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCLO];
|
||
|
||
case BFD_RELOC_FRV_TLSMOFF12:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF12];
|
||
|
||
case BFD_RELOC_FRV_TLSMOFFHI:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFHI];
|
||
|
||
case BFD_RELOC_FRV_TLSMOFFLO:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFLO];
|
||
|
||
case BFD_RELOC_FRV_GOTTLSOFF12:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFF12];
|
||
|
||
case BFD_RELOC_FRV_GOTTLSOFFHI:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFHI];
|
||
|
||
case BFD_RELOC_FRV_GOTTLSOFFLO:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFLO];
|
||
|
||
case BFD_RELOC_FRV_TLSOFF:
|
||
if (elf_elfheader (abfd)->e_type == ET_EXEC
|
||
|| elf_elfheader (abfd)->e_type == ET_DYN)
|
||
return &elf32_frv_rel_tlsoff_howto;
|
||
return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF];
|
||
|
||
case BFD_RELOC_FRV_TLSDESC_RELAX:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_RELAX];
|
||
|
||
case BFD_RELOC_FRV_GETTLSOFF_RELAX:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF_RELAX];
|
||
|
||
case BFD_RELOC_FRV_TLSOFF_RELAX:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF_RELAX];
|
||
|
||
case BFD_RELOC_FRV_TLSMOFF:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF];
|
||
|
||
case BFD_RELOC_VTABLE_INHERIT:
|
||
return &elf32_frv_vtinherit_howto;
|
||
|
||
case BFD_RELOC_VTABLE_ENTRY:
|
||
return &elf32_frv_vtentry_howto;
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
static reloc_howto_type *
|
||
frv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
|
||
{
|
||
unsigned int i;
|
||
|
||
for (i = 0;
|
||
i < sizeof (elf32_frv_howto_table) / sizeof (elf32_frv_howto_table[0]);
|
||
i++)
|
||
if (elf32_frv_howto_table[i].name != NULL
|
||
&& strcasecmp (elf32_frv_howto_table[i].name, r_name) == 0)
|
||
return &elf32_frv_howto_table[i];
|
||
|
||
if (strcasecmp (elf32_frv_vtinherit_howto.name, r_name) == 0)
|
||
return &elf32_frv_vtinherit_howto;
|
||
if (strcasecmp (elf32_frv_vtentry_howto.name, r_name) == 0)
|
||
return &elf32_frv_vtentry_howto;
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/* Set the howto pointer for an FRV ELF reloc. */
|
||
|
||
static bfd_boolean
|
||
frv_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
|
||
arelent *cache_ptr,
|
||
Elf_Internal_Rela *dst)
|
||
{
|
||
unsigned int r_type;
|
||
|
||
r_type = ELF32_R_TYPE (dst->r_info);
|
||
switch (r_type)
|
||
{
|
||
case R_FRV_GNU_VTINHERIT:
|
||
cache_ptr->howto = &elf32_frv_vtinherit_howto;
|
||
break;
|
||
|
||
case R_FRV_GNU_VTENTRY:
|
||
cache_ptr->howto = &elf32_frv_vtentry_howto;
|
||
break;
|
||
|
||
default:
|
||
if (r_type >= ARRAY_SIZE (elf32_frv_howto_table))
|
||
{
|
||
/* xgettext:c-format */
|
||
_bfd_error_handler (_("%pB: unsupported relocation type %#x"),
|
||
abfd, r_type);
|
||
bfd_set_error (bfd_error_bad_value);
|
||
return FALSE;
|
||
}
|
||
cache_ptr->howto = & elf32_frv_howto_table [r_type];
|
||
break;
|
||
}
|
||
return TRUE;
|
||
}
|
||
|
||
/* Set the howto pointer for an FRV ELF REL reloc. */
|
||
|
||
static bfd_boolean
|
||
frvfdpic_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);
|
||
switch (r_type)
|
||
{
|
||
case R_FRV_32:
|
||
cache_ptr->howto = &elf32_frv_rel_32_howto;
|
||
break;
|
||
|
||
case R_FRV_FUNCDESC:
|
||
cache_ptr->howto = &elf32_frv_rel_funcdesc_howto;
|
||
break;
|
||
|
||
case R_FRV_FUNCDESC_VALUE:
|
||
cache_ptr->howto = &elf32_frv_rel_funcdesc_value_howto;
|
||
break;
|
||
|
||
case R_FRV_TLSDESC_VALUE:
|
||
cache_ptr->howto = &elf32_frv_rel_tlsdesc_value_howto;
|
||
break;
|
||
|
||
case R_FRV_TLSOFF:
|
||
cache_ptr->howto = &elf32_frv_rel_tlsoff_howto;
|
||
break;
|
||
|
||
default:
|
||
cache_ptr->howto = NULL;
|
||
return FALSE;
|
||
}
|
||
return TRUE;
|
||
}
|
||
|
||
/* Perform a single relocation. By default we use the standard BFD
|
||
routines, but a few relocs, we have to do them ourselves. */
|
||
|
||
static bfd_reloc_status_type
|
||
frv_final_link_relocate (reloc_howto_type *howto,
|
||
bfd *input_bfd,
|
||
asection *input_section,
|
||
bfd_byte *contents,
|
||
Elf_Internal_Rela *rel,
|
||
bfd_vma relocation)
|
||
{
|
||
return _bfd_final_link_relocate (howto, input_bfd, input_section,
|
||
contents, rel->r_offset, relocation,
|
||
rel->r_addend);
|
||
}
|
||
|
||
|
||
/* Relocate an FRV ELF section.
|
||
|
||
The RELOCATE_SECTION function is called by the new ELF backend linker
|
||
to handle the relocations for a section.
|
||
|
||
The relocs are always passed as Rela structures; if the section
|
||
actually uses Rel structures, the r_addend field will always be
|
||
zero.
|
||
|
||
This function is responsible for adjusting the section contents as
|
||
necessary, and (if using Rela relocs and generating a relocatable
|
||
output file) adjusting the reloc addend as necessary.
|
||
|
||
This function does not have to worry about setting the reloc
|
||
address or the reloc symbol index.
|
||
|
||
LOCAL_SYMS is a pointer to the swapped in local symbols.
|
||
|
||
LOCAL_SECTIONS is an array giving the section in the input file
|
||
corresponding to the st_shndx field of each local symbol.
|
||
|
||
The global hash table entry for the global symbols can be found
|
||
via elf_sym_hashes (input_bfd).
|
||
|
||
When generating relocatable output, this function must handle
|
||
STB_LOCAL/STT_SECTION symbols specially. The output symbol is
|
||
going to be the section symbol corresponding to the output
|
||
section, which means that the addend must be adjusted
|
||
accordingly. */
|
||
|
||
static bfd_boolean
|
||
elf32_frv_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
|
||
struct bfd_link_info *info,
|
||
bfd *input_bfd,
|
||
asection *input_section,
|
||
bfd_byte *contents,
|
||
Elf_Internal_Rela *relocs,
|
||
Elf_Internal_Sym *local_syms,
|
||
asection **local_sections)
|
||
{
|
||
Elf_Internal_Shdr *symtab_hdr;
|
||
struct elf_link_hash_entry **sym_hashes;
|
||
Elf_Internal_Rela *rel;
|
||
Elf_Internal_Rela *relend;
|
||
unsigned isec_segment, got_segment, plt_segment, gprel_segment, tls_segment,
|
||
check_segment[2];
|
||
int silence_segment_error = !bfd_link_pic (info);
|
||
unsigned long insn;
|
||
|
||
symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
|
||
sym_hashes = elf_sym_hashes (input_bfd);
|
||
relend = relocs + input_section->reloc_count;
|
||
|
||
isec_segment = _frvfdpic_osec_to_segment (output_bfd,
|
||
input_section->output_section);
|
||
if (IS_FDPIC (output_bfd) && frvfdpic_got_section (info))
|
||
got_segment = _frvfdpic_osec_to_segment (output_bfd,
|
||
frvfdpic_got_section (info)
|
||
->output_section);
|
||
else
|
||
got_segment = -1;
|
||
if (IS_FDPIC (output_bfd) && frvfdpic_gotfixup_section (info))
|
||
gprel_segment = _frvfdpic_osec_to_segment (output_bfd,
|
||
frvfdpic_gotfixup_section (info)
|
||
->output_section);
|
||
else
|
||
gprel_segment = -1;
|
||
if (IS_FDPIC (output_bfd) && frvfdpic_plt_section (info))
|
||
plt_segment = _frvfdpic_osec_to_segment (output_bfd,
|
||
frvfdpic_plt_section (info)
|
||
->output_section);
|
||
else
|
||
plt_segment = -1;
|
||
if (elf_hash_table (info)->tls_sec)
|
||
tls_segment = _frvfdpic_osec_to_segment (output_bfd,
|
||
elf_hash_table (info)->tls_sec);
|
||
else
|
||
tls_segment = -1;
|
||
|
||
for (rel = relocs; rel < relend; rel ++)
|
||
{
|
||
reloc_howto_type *howto;
|
||
unsigned long r_symndx;
|
||
Elf_Internal_Sym *sym;
|
||
asection *sec;
|
||
struct elf_link_hash_entry *h;
|
||
bfd_vma relocation;
|
||
bfd_reloc_status_type r;
|
||
const char *name;
|
||
int r_type;
|
||
asection *osec;
|
||
struct frvfdpic_relocs_info *picrel;
|
||
bfd_vma orig_addend = rel->r_addend;
|
||
|
||
r_type = ELF32_R_TYPE (rel->r_info);
|
||
|
||
if ( r_type == R_FRV_GNU_VTINHERIT
|
||
|| r_type == R_FRV_GNU_VTENTRY)
|
||
continue;
|
||
|
||
r_symndx = ELF32_R_SYM (rel->r_info);
|
||
howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
|
||
h = NULL;
|
||
sym = NULL;
|
||
sec = NULL;
|
||
|
||
if (r_symndx < symtab_hdr->sh_info)
|
||
{
|
||
sym = local_syms + r_symndx;
|
||
osec = sec = local_sections [r_symndx];
|
||
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
|
||
|
||
name = bfd_elf_string_from_elf_section
|
||
(input_bfd, symtab_hdr->sh_link, sym->st_name);
|
||
if (name == NULL || name[0] == 0)
|
||
name = bfd_section_name (input_bfd, sec);
|
||
}
|
||
else
|
||
{
|
||
bfd_boolean warned, ignored;
|
||
bfd_boolean unresolved_reloc;
|
||
|
||
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
|
||
r_symndx, symtab_hdr, sym_hashes,
|
||
h, sec, relocation,
|
||
unresolved_reloc, warned, ignored);
|
||
osec = sec;
|
||
name = h->root.root.string;
|
||
}
|
||
|
||
if (sec != NULL && discarded_section (sec))
|
||
RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
|
||
rel, 1, relend, howto, 0, contents);
|
||
|
||
if (bfd_link_relocatable (info))
|
||
continue;
|
||
|
||
if (r_type != R_FRV_TLSMOFF
|
||
&& h != NULL
|
||
&& (h->root.type == bfd_link_hash_defined
|
||
|| h->root.type == bfd_link_hash_defweak)
|
||
&& !FRVFDPIC_SYM_LOCAL (info, h))
|
||
{
|
||
osec = sec = NULL;
|
||
relocation = 0;
|
||
}
|
||
|
||
switch (r_type)
|
||
{
|
||
case R_FRV_LABEL24:
|
||
case R_FRV_32:
|
||
if (! IS_FDPIC (output_bfd))
|
||
goto non_fdpic;
|
||
/* Fall through. */
|
||
|
||
case R_FRV_GOT12:
|
||
case R_FRV_GOTHI:
|
||
case R_FRV_GOTLO:
|
||
case R_FRV_FUNCDESC_GOT12:
|
||
case R_FRV_FUNCDESC_GOTHI:
|
||
case R_FRV_FUNCDESC_GOTLO:
|
||
case R_FRV_GOTOFF12:
|
||
case R_FRV_GOTOFFHI:
|
||
case R_FRV_GOTOFFLO:
|
||
case R_FRV_FUNCDESC_GOTOFF12:
|
||
case R_FRV_FUNCDESC_GOTOFFHI:
|
||
case R_FRV_FUNCDESC_GOTOFFLO:
|
||
case R_FRV_FUNCDESC:
|
||
case R_FRV_FUNCDESC_VALUE:
|
||
case R_FRV_GETTLSOFF:
|
||
case R_FRV_TLSDESC_VALUE:
|
||
case R_FRV_GOTTLSDESC12:
|
||
case R_FRV_GOTTLSDESCHI:
|
||
case R_FRV_GOTTLSDESCLO:
|
||
case R_FRV_TLSMOFF12:
|
||
case R_FRV_TLSMOFFHI:
|
||
case R_FRV_TLSMOFFLO:
|
||
case R_FRV_GOTTLSOFF12:
|
||
case R_FRV_GOTTLSOFFHI:
|
||
case R_FRV_GOTTLSOFFLO:
|
||
case R_FRV_TLSOFF:
|
||
case R_FRV_TLSDESC_RELAX:
|
||
case R_FRV_GETTLSOFF_RELAX:
|
||
case R_FRV_TLSOFF_RELAX:
|
||
case R_FRV_TLSMOFF:
|
||
if (h != NULL)
|
||
picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info
|
||
(info), input_bfd, h,
|
||
orig_addend, INSERT);
|
||
else
|
||
/* In order to find the entry we created before, we must
|
||
use the original addend, not the one that may have been
|
||
modified by _bfd_elf_rela_local_sym(). */
|
||
picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
|
||
(info), input_bfd, r_symndx,
|
||
orig_addend, INSERT);
|
||
if (! picrel)
|
||
return FALSE;
|
||
|
||
if (!_frvfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
|
||
osec, sym,
|
||
rel->r_addend))
|
||
{
|
||
info->callbacks->einfo
|
||
/* xgettext:c-format */
|
||
(_("%H: relocation to `%s+%v'"
|
||
" may have caused the error above\n"),
|
||
input_bfd, input_section, rel->r_offset, name, rel->r_addend);
|
||
return FALSE;
|
||
}
|
||
|
||
break;
|
||
|
||
default:
|
||
non_fdpic:
|
||
picrel = NULL;
|
||
if (h
|
||
&& ! FRVFDPIC_SYM_LOCAL (info, h)
|
||
&& _bfd_elf_section_offset (output_bfd, info, input_section,
|
||
rel->r_offset) != (bfd_vma) -1)
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: relocation references symbol"
|
||
" not defined in the module\n"),
|
||
input_bfd, input_section, rel->r_offset);
|
||
return FALSE;
|
||
}
|
||
break;
|
||
}
|
||
|
||
switch (r_type)
|
||
{
|
||
case R_FRV_GETTLSOFF:
|
||
case R_FRV_TLSDESC_VALUE:
|
||
case R_FRV_GOTTLSDESC12:
|
||
case R_FRV_GOTTLSDESCHI:
|
||
case R_FRV_GOTTLSDESCLO:
|
||
case R_FRV_TLSMOFF12:
|
||
case R_FRV_TLSMOFFHI:
|
||
case R_FRV_TLSMOFFLO:
|
||
case R_FRV_GOTTLSOFF12:
|
||
case R_FRV_GOTTLSOFFHI:
|
||
case R_FRV_GOTTLSOFFLO:
|
||
case R_FRV_TLSOFF:
|
||
case R_FRV_TLSDESC_RELAX:
|
||
case R_FRV_GETTLSOFF_RELAX:
|
||
case R_FRV_TLSOFF_RELAX:
|
||
case R_FRV_TLSMOFF:
|
||
if (sec && (bfd_is_abs_section (sec) || bfd_is_und_section (sec)))
|
||
relocation += tls_biased_base (info);
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
|
||
/* Try to apply TLS relaxations. */
|
||
if (1)
|
||
switch (r_type)
|
||
{
|
||
|
||
#define LOCAL_EXEC_P(info, picrel) \
|
||
(bfd_link_executable (info) \
|
||
&& (picrel->symndx != -1 || FRVFDPIC_SYM_LOCAL ((info), (picrel)->d.h)))
|
||
#define INITIAL_EXEC_P(info, picrel) \
|
||
((bfd_link_executable (info)|| (info)->flags & DF_STATIC_TLS) \
|
||
&& (picrel)->tlsoff_entry)
|
||
|
||
#define IN_RANGE_FOR_OFST12_P(value) \
|
||
((bfd_vma)((value) + 2048) < (bfd_vma)4096)
|
||
#define IN_RANGE_FOR_SETLOS_P(value) \
|
||
((bfd_vma)((value) + 32768) < (bfd_vma)65536)
|
||
#define TLSMOFF_IN_RANGE_FOR_SETLOS_P(value, info) \
|
||
(IN_RANGE_FOR_SETLOS_P ((value) - tls_biased_base (info)))
|
||
|
||
#define RELAX_GETTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
|
||
(LOCAL_EXEC_P ((info), (picrel)) \
|
||
&& TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
|
||
#define RELAX_GETTLSOFF_INITIAL_EXEC_P(info, picrel) \
|
||
(INITIAL_EXEC_P ((info), (picrel)) \
|
||
&& IN_RANGE_FOR_OFST12_P ((picrel)->tlsoff_entry))
|
||
|
||
#define RELAX_TLSDESC_LOCAL_EXEC_P(info, picrel, value) \
|
||
(LOCAL_EXEC_P ((info), (picrel)))
|
||
#define RELAX_TLSDESC_INITIAL_EXEC_P(info, picrel) \
|
||
(INITIAL_EXEC_P ((info), (picrel)))
|
||
|
||
#define RELAX_GOTTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
|
||
(LOCAL_EXEC_P ((info), (picrel)) \
|
||
&& TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
|
||
|
||
case R_FRV_GETTLSOFF:
|
||
insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
||
|
||
/* Is this a call instruction? */
|
||
if ((insn & (unsigned long)0x01fc0000) != 0x003c0000)
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: R_FRV_GETTLSOFF not applied to a call instruction\n"),
|
||
input_bfd, input_section, rel->r_offset);
|
||
return FALSE;
|
||
}
|
||
|
||
if (RELAX_GETTLSOFF_LOCAL_EXEC_P (info, picrel,
|
||
relocation + rel->r_addend))
|
||
{
|
||
/* Replace the call instruction (except the packing bit)
|
||
with setlos #tlsmofflo(symbol+offset), gr9. */
|
||
insn &= (unsigned long)0x80000000;
|
||
insn |= (unsigned long)0x12fc0000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
r_type = R_FRV_TLSMOFFLO;
|
||
howto = elf32_frv_howto_table + r_type;
|
||
rel->r_info = ELF32_R_INFO (r_symndx, r_type);
|
||
}
|
||
|
||
else if (RELAX_GETTLSOFF_INITIAL_EXEC_P (info, picrel))
|
||
{
|
||
/* Replace the call instruction (except the packing bit)
|
||
with ldi @(gr15, #gottlsoff12(symbol+addend)), gr9. */
|
||
insn &= (unsigned long)0x80000000;
|
||
insn |= (unsigned long)0x12c8f000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
r_type = R_FRV_GOTTLSOFF12;
|
||
howto = elf32_frv_howto_table + r_type;
|
||
rel->r_info = ELF32_R_INFO (r_symndx, r_type);
|
||
}
|
||
|
||
break;
|
||
|
||
case R_FRV_GOTTLSDESC12:
|
||
insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
||
|
||
/* Is this an lddi instruction? */
|
||
if ((insn & (unsigned long)0x01fc0000) != 0x00cc0000)
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: R_FRV_GOTTLSDESC12"
|
||
" not applied to an lddi instruction\n"),
|
||
input_bfd, input_section, rel->r_offset);
|
||
return FALSE;
|
||
}
|
||
|
||
if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
|
||
relocation + rel->r_addend)
|
||
&& TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
|
||
info))
|
||
{
|
||
/* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
|
||
with setlos #tlsmofflo(symbol+offset), gr<C+1>.
|
||
Preserve the packing bit. */
|
||
insn = (insn & (unsigned long)0x80000000)
|
||
| ((insn + (unsigned long)0x02000000)
|
||
& (unsigned long)0x7e000000);
|
||
insn |= (unsigned long)0x00fc0000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
r_type = R_FRV_TLSMOFFLO;
|
||
howto = elf32_frv_howto_table + r_type;
|
||
rel->r_info = ELF32_R_INFO (r_symndx, r_type);
|
||
}
|
||
|
||
else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
|
||
relocation + rel->r_addend))
|
||
{
|
||
/* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
|
||
with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
|
||
Preserve the packing bit. */
|
||
insn = (insn & (unsigned long)0x80000000)
|
||
| ((insn + (unsigned long)0x02000000)
|
||
& (unsigned long)0x7e000000);
|
||
insn |= (unsigned long)0x00f80000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
r_type = R_FRV_TLSMOFFHI;
|
||
howto = elf32_frv_howto_table + r_type;
|
||
rel->r_info = ELF32_R_INFO (r_symndx, r_type);
|
||
}
|
||
|
||
else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
|
||
{
|
||
/* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
|
||
with ldi @(grB, #gottlsoff12(symbol+offset),
|
||
gr<C+1>. Preserve the packing bit. If gottlsoff12
|
||
overflows, we'll error out, but that's sort-of ok,
|
||
since we'd started with gottlsdesc12, that's actually
|
||
more demanding. Compiling with -fPIE instead of
|
||
-fpie would fix it; linking with --relax should fix
|
||
it as well. */
|
||
insn = (insn & (unsigned long)0x80cbf000)
|
||
| ((insn + (unsigned long)0x02000000)
|
||
& (unsigned long)0x7e000000);
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
r_type = R_FRV_GOTTLSOFF12;
|
||
howto = elf32_frv_howto_table + r_type;
|
||
rel->r_info = ELF32_R_INFO (r_symndx, r_type);
|
||
}
|
||
|
||
break;
|
||
|
||
case R_FRV_GOTTLSDESCHI:
|
||
insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
||
|
||
/* Is this a sethi instruction? */
|
||
if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: R_FRV_GOTTLSDESCHI"
|
||
" not applied to a sethi instruction\n"),
|
||
input_bfd, input_section, rel->r_offset);
|
||
return FALSE;
|
||
}
|
||
|
||
if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
|
||
relocation + rel->r_addend)
|
||
|| (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
|
||
&& IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry)))
|
||
{
|
||
/* Replace sethi with a nop. Preserve the packing bit. */
|
||
insn &= (unsigned long)0x80000000;
|
||
insn |= (unsigned long)0x00880000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
/* Nothing to relocate. */
|
||
continue;
|
||
}
|
||
|
||
else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
|
||
{
|
||
/* Simply decay GOTTLSDESC to GOTTLSOFF. */
|
||
r_type = R_FRV_GOTTLSOFFHI;
|
||
howto = elf32_frv_howto_table + r_type;
|
||
rel->r_info = ELF32_R_INFO (r_symndx, r_type);
|
||
}
|
||
|
||
break;
|
||
|
||
case R_FRV_GOTTLSDESCLO:
|
||
insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
||
|
||
/* Is this a setlo or setlos instruction? */
|
||
if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: R_FRV_GOTTLSDESCLO"
|
||
" not applied to a setlo or setlos instruction\n"),
|
||
input_bfd, input_section, rel->r_offset);
|
||
return FALSE;
|
||
}
|
||
|
||
if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
|
||
relocation + rel->r_addend)
|
||
|| (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
|
||
&& IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
|
||
{
|
||
/* Replace setlo/setlos with a nop. Preserve the
|
||
packing bit. */
|
||
insn &= (unsigned long)0x80000000;
|
||
insn |= (unsigned long)0x00880000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
/* Nothing to relocate. */
|
||
continue;
|
||
}
|
||
|
||
else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
|
||
{
|
||
/* If the corresponding sethi (if it exists) decayed
|
||
to a nop, make sure this becomes (or already is) a
|
||
setlos, not setlo. */
|
||
if (IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry))
|
||
{
|
||
insn |= (unsigned long)0x00080000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
}
|
||
|
||
/* Simply decay GOTTLSDESC to GOTTLSOFF. */
|
||
r_type = R_FRV_GOTTLSOFFLO;
|
||
howto = elf32_frv_howto_table + r_type;
|
||
rel->r_info = ELF32_R_INFO (r_symndx, r_type);
|
||
}
|
||
|
||
break;
|
||
|
||
case R_FRV_TLSDESC_RELAX:
|
||
insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
||
|
||
/* Is this an ldd instruction? */
|
||
if ((insn & (unsigned long)0x01fc0fc0) != 0x00080140)
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: R_FRV_TLSDESC_RELAX"
|
||
" not applied to an ldd instruction\n"),
|
||
input_bfd, input_section, rel->r_offset);
|
||
return FALSE;
|
||
}
|
||
|
||
if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
|
||
relocation + rel->r_addend)
|
||
&& TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
|
||
info))
|
||
{
|
||
/* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
|
||
with setlos #tlsmofflo(symbol+offset), gr<C+1>.
|
||
Preserve the packing bit. */
|
||
insn = (insn & (unsigned long)0x80000000)
|
||
| ((insn + (unsigned long)0x02000000)
|
||
& (unsigned long)0x7e000000);
|
||
insn |= (unsigned long)0x00fc0000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
r_type = R_FRV_TLSMOFFLO;
|
||
howto = elf32_frv_howto_table + r_type;
|
||
rel->r_info = ELF32_R_INFO (r_symndx, r_type);
|
||
}
|
||
|
||
else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
|
||
relocation + rel->r_addend))
|
||
{
|
||
/* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
|
||
with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
|
||
Preserve the packing bit. */
|
||
insn = (insn & (unsigned long)0x80000000)
|
||
| ((insn + (unsigned long)0x02000000)
|
||
& (unsigned long)0x7e000000);
|
||
insn |= (unsigned long)0x00f80000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
r_type = R_FRV_TLSMOFFHI;
|
||
howto = elf32_frv_howto_table + r_type;
|
||
rel->r_info = ELF32_R_INFO (r_symndx, r_type);
|
||
}
|
||
|
||
else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
|
||
&& IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
|
||
{
|
||
/* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
|
||
with ldi @(grB, #gottlsoff12(symbol+offset), gr<C+1>.
|
||
Preserve the packing bit. */
|
||
insn = (insn & (unsigned long)0x8003f000)
|
||
| (unsigned long)0x00c80000
|
||
| ((insn + (unsigned long)0x02000000)
|
||
& (unsigned long)0x7e000000);
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
r_type = R_FRV_GOTTLSOFF12;
|
||
howto = elf32_frv_howto_table + r_type;
|
||
rel->r_info = ELF32_R_INFO (r_symndx, r_type);
|
||
}
|
||
|
||
else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
|
||
{
|
||
/* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
|
||
with ld #tlsoff(symbol+offset)@(grB, grA), gr<C+1>.
|
||
Preserve the packing bit. */
|
||
insn = (insn & (unsigned long)0x81ffffbf)
|
||
| ((insn + (unsigned long)0x02000000)
|
||
& (unsigned long)0x7e000000);
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
/* #tlsoff(symbol+offset) is just a relaxation
|
||
annotation, so there's nothing left to
|
||
relocate. */
|
||
continue;
|
||
}
|
||
|
||
break;
|
||
|
||
case R_FRV_GETTLSOFF_RELAX:
|
||
insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
||
|
||
/* Is this a calll or callil instruction? */
|
||
if ((insn & (unsigned long)0x7ff80fc0) != 0x02300000)
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: R_FRV_GETTLSOFF_RELAX"
|
||
" not applied to a calll instruction\n"),
|
||
input_bfd, input_section, rel->r_offset);
|
||
return FALSE;
|
||
}
|
||
|
||
if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
|
||
relocation + rel->r_addend)
|
||
&& TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
|
||
info))
|
||
{
|
||
/* Replace calll with a nop. Preserve the packing bit. */
|
||
insn &= (unsigned long)0x80000000;
|
||
insn |= (unsigned long)0x00880000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
/* Nothing to relocate. */
|
||
continue;
|
||
}
|
||
|
||
else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
|
||
relocation + rel->r_addend))
|
||
{
|
||
/* Replace calll with setlo #tlsmofflo(symbol+offset), gr9.
|
||
Preserve the packing bit. */
|
||
insn &= (unsigned long)0x80000000;
|
||
insn |= (unsigned long)0x12f40000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
r_type = R_FRV_TLSMOFFLO;
|
||
howto = elf32_frv_howto_table + r_type;
|
||
rel->r_info = ELF32_R_INFO (r_symndx, r_type);
|
||
}
|
||
|
||
else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
|
||
{
|
||
/* Replace calll with a nop. Preserve the packing bit. */
|
||
insn &= (unsigned long)0x80000000;
|
||
insn |= (unsigned long)0x00880000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
/* Nothing to relocate. */
|
||
continue;
|
||
}
|
||
|
||
break;
|
||
|
||
case R_FRV_GOTTLSOFF12:
|
||
insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
||
|
||
/* Is this an ldi instruction? */
|
||
if ((insn & (unsigned long)0x01fc0000) != 0x00c80000)
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: R_FRV_GOTTLSOFF12"
|
||
" not applied to an ldi instruction\n"),
|
||
input_bfd, input_section, rel->r_offset);
|
||
return FALSE;
|
||
}
|
||
|
||
if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
|
||
relocation + rel->r_addend))
|
||
{
|
||
/* Replace ldi @(grB, #gottlsoff12(symbol+offset), grC
|
||
with setlos #tlsmofflo(symbol+offset), grC.
|
||
Preserve the packing bit. */
|
||
insn &= (unsigned long)0xfe000000;
|
||
insn |= (unsigned long)0x00fc0000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
r_type = R_FRV_TLSMOFFLO;
|
||
howto = elf32_frv_howto_table + r_type;
|
||
rel->r_info = ELF32_R_INFO (r_symndx, r_type);
|
||
}
|
||
|
||
break;
|
||
|
||
case R_FRV_GOTTLSOFFHI:
|
||
insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
||
|
||
/* Is this a sethi instruction? */
|
||
if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: R_FRV_GOTTLSOFFHI"
|
||
" not applied to a sethi instruction\n"),
|
||
input_bfd, input_section, rel->r_offset);
|
||
return FALSE;
|
||
}
|
||
|
||
if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
|
||
relocation + rel->r_addend)
|
||
|| (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
|
||
&& IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
|
||
{
|
||
/* Replace sethi with a nop. Preserve the packing bit. */
|
||
insn &= (unsigned long)0x80000000;
|
||
insn |= (unsigned long)0x00880000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
/* Nothing to relocate. */
|
||
continue;
|
||
}
|
||
|
||
break;
|
||
|
||
case R_FRV_GOTTLSOFFLO:
|
||
insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
||
|
||
/* Is this a setlo or setlos instruction? */
|
||
if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: R_FRV_GOTTLSOFFLO"
|
||
" not applied to a setlo or setlos instruction\n"),
|
||
input_bfd, input_section, rel->r_offset);
|
||
return FALSE;
|
||
}
|
||
|
||
if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
|
||
relocation + rel->r_addend)
|
||
|| (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
|
||
&& IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
|
||
{
|
||
/* Replace setlo/setlos with a nop. Preserve the
|
||
packing bit. */
|
||
insn &= (unsigned long)0x80000000;
|
||
insn |= (unsigned long)0x00880000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
/* Nothing to relocate. */
|
||
continue;
|
||
}
|
||
|
||
break;
|
||
|
||
case R_FRV_TLSOFF_RELAX:
|
||
insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
||
|
||
/* Is this an ld instruction? */
|
||
if ((insn & (unsigned long)0x01fc0fc0) != 0x00080100)
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: R_FRV_TLSOFF_RELAX"
|
||
" not applied to an ld instruction\n"),
|
||
input_bfd, input_section, rel->r_offset);
|
||
return FALSE;
|
||
}
|
||
|
||
if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
|
||
relocation + rel->r_addend))
|
||
{
|
||
/* Replace ld #gottlsoff(symbol+offset)@(grB, grA), grC
|
||
with setlos #tlsmofflo(symbol+offset), grC.
|
||
Preserve the packing bit. */
|
||
insn &= (unsigned long)0xfe000000;
|
||
insn |= (unsigned long)0x00fc0000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
r_type = R_FRV_TLSMOFFLO;
|
||
howto = elf32_frv_howto_table + r_type;
|
||
rel->r_info = ELF32_R_INFO (r_symndx, r_type);
|
||
}
|
||
|
||
else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
|
||
&& IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
|
||
{
|
||
/* Replace ld #tlsoff(symbol+offset)@(grB, grA), grC
|
||
with ldi @(grB, #gottlsoff12(symbol+offset), grC.
|
||
Preserve the packing bit. */
|
||
insn = (insn & (unsigned long)0xfe03f000)
|
||
| (unsigned long)0x00c80000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
r_type = R_FRV_GOTTLSOFF12;
|
||
howto = elf32_frv_howto_table + r_type;
|
||
rel->r_info = ELF32_R_INFO (r_symndx, r_type);
|
||
}
|
||
|
||
break;
|
||
|
||
case R_FRV_TLSMOFFHI:
|
||
insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
||
|
||
/* Is this a sethi instruction? */
|
||
if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: R_FRV_TLSMOFFHI"
|
||
" not applied to a sethi instruction\n"),
|
||
input_bfd, input_section, rel->r_offset);
|
||
return FALSE;
|
||
}
|
||
|
||
if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
|
||
info))
|
||
{
|
||
/* Replace sethi with a nop. Preserve the packing bit. */
|
||
insn &= (unsigned long)0x80000000;
|
||
insn |= (unsigned long)0x00880000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
|
||
/* Nothing to relocate. */
|
||
continue;
|
||
}
|
||
|
||
break;
|
||
|
||
case R_FRV_TLSMOFFLO:
|
||
insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
||
|
||
/* Is this a setlo or setlos instruction? */
|
||
if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
|
||
{
|
||
info->callbacks->einfo
|
||
(_("R_FRV_TLSMOFFLO"
|
||
" not applied to a setlo or setlos instruction\n"),
|
||
input_bfd, input_section, rel->r_offset);
|
||
return FALSE;
|
||
}
|
||
|
||
if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
|
||
info))
|
||
/* If the corresponding sethi (if it exists) decayed
|
||
to a nop, make sure this becomes (or already is) a
|
||
setlos, not setlo. */
|
||
{
|
||
insn |= (unsigned long)0x00080000;
|
||
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
|
||
}
|
||
|
||
break;
|
||
|
||
/*
|
||
There's nothing to relax in these:
|
||
R_FRV_TLSDESC_VALUE
|
||
R_FRV_TLSOFF
|
||
R_FRV_TLSMOFF12
|
||
R_FRV_TLSMOFFHI
|
||
R_FRV_TLSMOFFLO
|
||
R_FRV_TLSMOFF
|
||
*/
|
||
|
||
default:
|
||
break;
|
||
}
|
||
|
||
switch (r_type)
|
||
{
|
||
case R_FRV_LABEL24:
|
||
check_segment[0] = isec_segment;
|
||
if (! IS_FDPIC (output_bfd))
|
||
check_segment[1] = isec_segment;
|
||
else if (picrel->plt)
|
||
{
|
||
relocation = frvfdpic_plt_section (info)->output_section->vma
|
||
+ frvfdpic_plt_section (info)->output_offset
|
||
+ picrel->plt_entry;
|
||
check_segment[1] = plt_segment;
|
||
}
|
||
/* We don't want to warn on calls to undefined weak symbols,
|
||
as calls to them must be protected by non-NULL tests
|
||
anyway, and unprotected calls would invoke undefined
|
||
behavior. */
|
||
else if (picrel->symndx == -1
|
||
&& picrel->d.h->root.type == bfd_link_hash_undefweak)
|
||
check_segment[1] = check_segment[0];
|
||
else
|
||
check_segment[1] = sec
|
||
? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
|
||
: (unsigned)-1;
|
||
break;
|
||
|
||
case R_FRV_GOT12:
|
||
case R_FRV_GOTHI:
|
||
case R_FRV_GOTLO:
|
||
relocation = picrel->got_entry;
|
||
check_segment[0] = check_segment[1] = got_segment;
|
||
break;
|
||
|
||
case R_FRV_FUNCDESC_GOT12:
|
||
case R_FRV_FUNCDESC_GOTHI:
|
||
case R_FRV_FUNCDESC_GOTLO:
|
||
relocation = picrel->fdgot_entry;
|
||
check_segment[0] = check_segment[1] = got_segment;
|
||
break;
|
||
|
||
case R_FRV_GOTOFFHI:
|
||
case R_FRV_GOTOFF12:
|
||
case R_FRV_GOTOFFLO:
|
||
relocation -= frvfdpic_got_section (info)->output_section->vma
|
||
+ frvfdpic_got_section (info)->output_offset
|
||
+ frvfdpic_got_initial_offset (info);
|
||
check_segment[0] = got_segment;
|
||
check_segment[1] = sec
|
||
? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
|
||
: (unsigned)-1;
|
||
break;
|
||
|
||
case R_FRV_FUNCDESC_GOTOFF12:
|
||
case R_FRV_FUNCDESC_GOTOFFHI:
|
||
case R_FRV_FUNCDESC_GOTOFFLO:
|
||
relocation = picrel->fd_entry;
|
||
check_segment[0] = check_segment[1] = got_segment;
|
||
break;
|
||
|
||
case R_FRV_FUNCDESC:
|
||
{
|
||
int dynindx;
|
||
bfd_vma addend = rel->r_addend;
|
||
|
||
if (! (h && h->root.type == bfd_link_hash_undefweak
|
||
&& FRVFDPIC_SYM_LOCAL (info, h)))
|
||
{
|
||
/* If the symbol is dynamic and there may be dynamic
|
||
symbol resolution because we are or are linked with a
|
||
shared library, emit a FUNCDESC relocation such that
|
||
the dynamic linker will allocate the function
|
||
descriptor. If the symbol needs a non-local function
|
||
descriptor but binds locally (e.g., its visibility is
|
||
protected, emit a dynamic relocation decayed to
|
||
section+offset. */
|
||
if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
|
||
&& FRVFDPIC_SYM_LOCAL (info, h)
|
||
&& !bfd_link_pde (info))
|
||
{
|
||
dynindx = elf_section_data (h->root.u.def.section
|
||
->output_section)->dynindx;
|
||
addend += h->root.u.def.section->output_offset
|
||
+ h->root.u.def.value;
|
||
}
|
||
else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
|
||
{
|
||
if (addend)
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: %s references dynamic symbol"
|
||
" with nonzero addend\n"),
|
||
input_bfd, input_section, rel->r_offset,
|
||
"R_FRV_FUNCDESC");
|
||
return FALSE;
|
||
}
|
||
dynindx = h->dynindx;
|
||
}
|
||
else
|
||
{
|
||
/* Otherwise, we know we have a private function
|
||
descriptor, so reference it directly. */
|
||
BFD_ASSERT (picrel->privfd);
|
||
r_type = R_FRV_32;
|
||
dynindx = elf_section_data (frvfdpic_got_section (info)
|
||
->output_section)->dynindx;
|
||
addend = frvfdpic_got_section (info)->output_offset
|
||
+ frvfdpic_got_initial_offset (info)
|
||
+ picrel->fd_entry;
|
||
}
|
||
|
||
/* If there is room for dynamic symbol resolution, emit
|
||
the dynamic relocation. However, if we're linking an
|
||
executable at a fixed location, we won't have emitted a
|
||
dynamic symbol entry for the got section, so idx will
|
||
be zero, which means we can and should compute the
|
||
address of the private descriptor ourselves. */
|
||
if (bfd_link_pde (info)
|
||
&& (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
|
||
{
|
||
addend += frvfdpic_got_section (info)->output_section->vma;
|
||
if ((bfd_get_section_flags (output_bfd,
|
||
input_section->output_section)
|
||
& (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
|
||
{
|
||
bfd_vma offset;
|
||
|
||
if (_frvfdpic_osec_readonly_p (output_bfd,
|
||
input_section
|
||
->output_section))
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: cannot emit fixups"
|
||
" in read-only section\n"),
|
||
input_bfd, input_section, rel->r_offset);
|
||
return FALSE;
|
||
}
|
||
|
||
offset = _bfd_elf_section_offset
|
||
(output_bfd, info,
|
||
input_section, rel->r_offset);
|
||
|
||
if (offset != (bfd_vma)-1)
|
||
_frvfdpic_add_rofixup (output_bfd,
|
||
frvfdpic_gotfixup_section
|
||
(info),
|
||
offset + input_section
|
||
->output_section->vma
|
||
+ input_section->output_offset,
|
||
picrel);
|
||
}
|
||
}
|
||
else if ((bfd_get_section_flags (output_bfd,
|
||
input_section->output_section)
|
||
& (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
|
||
{
|
||
bfd_vma offset;
|
||
|
||
if (_frvfdpic_osec_readonly_p (output_bfd,
|
||
input_section
|
||
->output_section))
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: cannot emit dynamic relocations"
|
||
" in read-only section\n"),
|
||
input_bfd, input_section, rel->r_offset);
|
||
return FALSE;
|
||
}
|
||
|
||
offset = _bfd_elf_section_offset
|
||
(output_bfd, info,
|
||
input_section, rel->r_offset);
|
||
|
||
if (offset != (bfd_vma)-1)
|
||
_frvfdpic_add_dyn_reloc (output_bfd,
|
||
frvfdpic_gotrel_section (info),
|
||
offset + input_section
|
||
->output_section->vma
|
||
+ input_section->output_offset,
|
||
r_type, dynindx, addend, picrel);
|
||
}
|
||
else
|
||
addend += frvfdpic_got_section (info)->output_section->vma;
|
||
}
|
||
|
||
/* We want the addend in-place because dynamic
|
||
relocations are REL. Setting relocation to it should
|
||
arrange for it to be installed. */
|
||
relocation = addend - rel->r_addend;
|
||
}
|
||
check_segment[0] = check_segment[1] = got_segment;
|
||
break;
|
||
|
||
case R_FRV_32:
|
||
if (! IS_FDPIC (output_bfd))
|
||
{
|
||
check_segment[0] = check_segment[1] = -1;
|
||
break;
|
||
}
|
||
/* Fall through. */
|
||
case R_FRV_FUNCDESC_VALUE:
|
||
{
|
||
int dynindx;
|
||
bfd_vma addend = rel->r_addend;
|
||
|
||
/* If the symbol is dynamic but binds locally, use
|
||
section+offset. */
|
||
if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
|
||
{
|
||
if (addend && r_type == R_FRV_FUNCDESC_VALUE)
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: %s references dynamic symbol"
|
||
" with nonzero addend\n"),
|
||
input_bfd, input_section, rel->r_offset,
|
||
"R_FRV_FUNCDESC_VALUE");
|
||
return FALSE;
|
||
}
|
||
dynindx = h->dynindx;
|
||
}
|
||
else
|
||
{
|
||
if (h)
|
||
addend += h->root.u.def.value;
|
||
else
|
||
addend += sym->st_value;
|
||
if (osec)
|
||
addend += osec->output_offset;
|
||
if (osec && osec->output_section
|
||
&& ! bfd_is_abs_section (osec->output_section)
|
||
&& ! bfd_is_und_section (osec->output_section))
|
||
dynindx = elf_section_data (osec->output_section)->dynindx;
|
||
else
|
||
dynindx = 0;
|
||
}
|
||
|
||
/* If we're linking an executable at a fixed address, we
|
||
can omit the dynamic relocation as long as the symbol
|
||
is defined in the current link unit (which is implied
|
||
by its output section not being NULL). */
|
||
if (bfd_link_pde (info)
|
||
&& (!h || FRVFDPIC_SYM_LOCAL (info, h)))
|
||
{
|
||
if (osec)
|
||
addend += osec->output_section->vma;
|
||
if (IS_FDPIC (input_bfd)
|
||
&& (bfd_get_section_flags (output_bfd,
|
||
input_section->output_section)
|
||
& (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
|
||
{
|
||
if (_frvfdpic_osec_readonly_p (output_bfd,
|
||
input_section
|
||
->output_section))
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: cannot emit fixups in read-only section\n"),
|
||
input_bfd, input_section, rel->r_offset);
|
||
return FALSE;
|
||
}
|
||
if (!h || h->root.type != bfd_link_hash_undefweak)
|
||
{
|
||
bfd_vma offset = _bfd_elf_section_offset
|
||
(output_bfd, info,
|
||
input_section, rel->r_offset);
|
||
|
||
if (offset != (bfd_vma)-1)
|
||
{
|
||
_frvfdpic_add_rofixup (output_bfd,
|
||
frvfdpic_gotfixup_section
|
||
(info),
|
||
offset + input_section
|
||
->output_section->vma
|
||
+ input_section->output_offset,
|
||
picrel);
|
||
if (r_type == R_FRV_FUNCDESC_VALUE)
|
||
_frvfdpic_add_rofixup
|
||
(output_bfd,
|
||
frvfdpic_gotfixup_section (info),
|
||
offset
|
||
+ input_section->output_section->vma
|
||
+ input_section->output_offset + 4, picrel);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if ((bfd_get_section_flags (output_bfd,
|
||
input_section->output_section)
|
||
& (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
|
||
{
|
||
bfd_vma offset;
|
||
|
||
if (_frvfdpic_osec_readonly_p (output_bfd,
|
||
input_section
|
||
->output_section))
|
||
{
|
||
info->callbacks->einfo
|
||
(_("%H: cannot emit dynamic relocations"
|
||
" in read-only section\n"),
|
||
input_bfd, input_section, rel->r_offset);
|
||
return FALSE;
|
||
}
|
||
|
||
offset = _bfd_elf_section_offset
|
||
(output_bfd, info,
|
||
input_section, rel->r_offset);
|
||
|
||
if (offset != (bfd_vma)-1)
|
||
_frvfdpic_add_dyn_reloc (output_bfd,
|
||
frvfdpic_gotrel_section (info),
|
||
offset + input_section
|
||
->output_section->vma
|
||
+ input_section->output_offset,
|
||
r_type, dynindx, addend, picrel);
|
||
}
|
||
else if (osec)
|
||
addend += osec->output_section->vma;
|
||
/* We want the addend in-place because dynamic
|
||
relocations are REL. Setting relocation to it
|
||
should arrange for it to be installed. */
|
||
relocation = addend - rel->r_addend;
|
||
}
|
||
|
||
if (r_type == R_FRV_FUNCDESC_VALUE)
|
||
{
|
||
/* If we've omitted the dynamic relocation, just emit
|
||
the fixed addresses of the symbol and of the local
|
||
GOT base offset. */
|
||
if (bfd_link_pde (info)
|
||
&& (!h || FRVFDPIC_SYM_LOCAL (info, h)))
|
||
bfd_put_32 (output_bfd,
|
||
frvfdpic_got_section (info)->output_section->vma
|
||
+ frvfdpic_got_section (info)->output_offset
|
||
+ frvfdpic_got_initial_offset (info),
|
||
contents + rel->r_offset + 4);
|
||
else
|
||
/* A function descriptor used for lazy or local
|
||
resolving is initialized such that its high word
|
||
contains the output section index in which the
|
||
PLT entries are located, and the low word
|
||
contains the offset of the lazy PLT entry entry
|
||
point into that section. */
|
||
bfd_put_32 (output_bfd,
|
||
h && ! FRVFDPIC_SYM_LOCAL (info, h)
|
||
? 0
|
||
: _frvfdpic_osec_to_segment (output_bfd,
|
||
sec
|
||
->output_section),
|
||
contents + rel->r_offset + 4);
|
||
}
|
||
}
|
||
check_segment[0] = check_segment[1] = got_segment;
|
||
break;
|
||
|
||
case R_FRV_GPREL12:
|
||
case R_FRV_GPRELU12:
|
||
case R_FRV_GPREL32:
|
||
case R_FRV_GPRELHI:
|
||
case R_FRV_GPRELLO:
|
||
check_segment[0] = gprel_segment;
|
||
check_segment[1] = sec
|
||
? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
|
||
: (unsigned)-1;
|
||
break;
|
||
|
||
case R_FRV_GETTLSOFF:
|
||
relocation = frvfdpic_plt_section (info)->output_section->vma
|
||
+ frvfdpic_plt_section (info)->output_offset
|
||
+ picrel->tlsplt_entry;
|
||
BFD_ASSERT (picrel->tlsplt_entry != (bfd_vma)-1
|
||
&& picrel->tlsdesc_entry);
|
||
check_segment[0] = isec_segment;
|
||
check_segment[1] = plt_segment;
|
||
break;
|
||
|
||
case R_FRV_GOTTLSDESC12:
|
||
case R_FRV_GOTTLSDESCHI:
|
||
case R_FRV_GOTTLSDESCLO:
|
||
BFD_ASSERT (picrel->tlsdesc_entry);
|
||
relocation = picrel->tlsdesc_entry;
|
||
check_segment[0] = tls_segment;
|
||
check_segment[1] = sec
|
||
&& ! bfd_is_abs_section (sec)
|
||
&& ! bfd_is_und_section (sec)
|
||
? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
|
||
: tls_segment;
|
||
break;
|
||
|
||
case R_FRV_TLSMOFF12:
|
||
case R_FRV_TLSMOFFHI:
|
||
case R_FRV_TLSMOFFLO:
|
||
case R_FRV_TLSMOFF:
|
||
check_segment[0] = tls_segment;
|
||
if (! sec)
|
||
check_segment[1] = -1;
|
||
else if (bfd_is_abs_section (sec)
|
||
|| bfd_is_und_section (sec))
|
||
{
|
||
relocation = 0;
|
||
check_segment[1] = tls_segment;
|
||
}
|
||
else if (sec->output_section)
|
||
{
|
||
relocation -= tls_biased_base (info);
|
||
check_segment[1] =
|
||
_frvfdpic_osec_to_segment (output_bfd, sec->output_section);
|
||
}
|
||
else
|
||
check_segment[1] = -1;
|
||
break;
|
||
|
||
case R_FRV_GOTTLSOFF12:
|
||
case R_FRV_GOTTLSOFFHI:
|
||
case R_FRV_GOTTLSOFFLO:
|
||
BFD_ASSERT (picrel->tlsoff_entry);
|
||
relocation = picrel->tlsoff_entry;
|
||
check_segment[0] = tls_segment;
|
||
check_segment[1] = sec
|
||
&& ! bfd_is_abs_section (sec)
|
||
&& ! bfd_is_und_section (sec)
|
||
? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
|
||
: tls_segment;
|
||
break;
|
||
|
||
case R_FRV_TLSDESC_VALUE:
|
||
case R_FRV_TLSOFF:
|
||
/* These shouldn't be present in input object files. */
|
||
check_segment[0] = check_segment[1] = isec_segment;
|
||
break;
|
||
|
||
case R_FRV_TLSDESC_RELAX:
|
||
case R_FRV_GETTLSOFF_RELAX:
|
||
case R_FRV_TLSOFF_RELAX:
|
||
/* These are just annotations for relaxation, nothing to do
|
||
here. */
|
||
continue;
|
||
|
||
default:
|
||
check_segment[0] = isec_segment;
|
||
check_segment[1] = sec
|
||
? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
|
||
: (unsigned)-1;
|
||
break;
|
||
}
|
||
|
||
if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
|
||
{
|
||
/* If you take this out, remove the #error from fdpic-static-6.d
|
||
in the ld testsuite. */
|
||
/* This helps catch problems in GCC while we can't do more
|
||
than static linking. The idea is to test whether the
|
||
input file basename is crt0.o only once. */
|
||
if (silence_segment_error == 1)
|
||
silence_segment_error =
|
||
(strlen (input_bfd->filename) == 6
|
||
&& filename_cmp (input_bfd->filename, "crt0.o") == 0)
|
||
|| (strlen (input_bfd->filename) > 6
|
||
&& filename_cmp (input_bfd->filename
|
||
+ strlen (input_bfd->filename) - 7,
|
||
"/crt0.o") == 0)
|
||
? -1 : 0;
|
||
if (!silence_segment_error
|
||
/* We don't want duplicate errors for undefined
|
||
symbols. */
|
||
&& !(picrel && picrel->symndx == -1
|
||
&& picrel->d.h->root.type == bfd_link_hash_undefined))
|
||
{
|
||
info->callbacks->einfo
|
||
/* xgettext:c-format */
|
||
(_("%H: reloc against `%s' references a different segment\n"),
|
||
input_bfd, input_section, rel->r_offset, name);
|
||
}
|
||
if (!silence_segment_error && bfd_link_pic (info))
|
||
return FALSE;
|
||
elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
|
||
}
|
||
|
||
switch (r_type)
|
||
{
|
||
case R_FRV_GOTOFFHI:
|
||
case R_FRV_TLSMOFFHI:
|
||
/* We need the addend to be applied before we shift the
|
||
value right. */
|
||
relocation += rel->r_addend;
|
||
/* Fall through. */
|
||
case R_FRV_GOTHI:
|
||
case R_FRV_FUNCDESC_GOTHI:
|
||
case R_FRV_FUNCDESC_GOTOFFHI:
|
||
case R_FRV_GOTTLSOFFHI:
|
||
case R_FRV_GOTTLSDESCHI:
|
||
relocation >>= 16;
|
||
/* Fall through. */
|
||
|
||
case R_FRV_GOTLO:
|
||
case R_FRV_FUNCDESC_GOTLO:
|
||
case R_FRV_GOTOFFLO:
|
||
case R_FRV_FUNCDESC_GOTOFFLO:
|
||
case R_FRV_GOTTLSOFFLO:
|
||
case R_FRV_GOTTLSDESCLO:
|
||
case R_FRV_TLSMOFFLO:
|
||
relocation &= 0xffff;
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
|
||
switch (r_type)
|
||
{
|
||
case R_FRV_LABEL24:
|
||
if (! IS_FDPIC (output_bfd) || ! picrel->plt)
|
||
break;
|
||
/* Fall through. */
|
||
|
||
/* When referencing a GOT entry, a function descriptor or a
|
||
PLT, we don't want the addend to apply to the reference,
|
||
but rather to the referenced symbol. The actual entry
|
||
will have already been created taking the addend into
|
||
account, so cancel it out here. */
|
||
case R_FRV_GOT12:
|
||
case R_FRV_GOTHI:
|
||
case R_FRV_GOTLO:
|
||
case R_FRV_FUNCDESC_GOT12:
|
||
case R_FRV_FUNCDESC_GOTHI:
|
||
case R_FRV_FUNCDESC_GOTLO:
|
||
case R_FRV_FUNCDESC_GOTOFF12:
|
||
case R_FRV_FUNCDESC_GOTOFFHI:
|
||
case R_FRV_FUNCDESC_GOTOFFLO:
|
||
case R_FRV_GETTLSOFF:
|
||
case R_FRV_GOTTLSDESC12:
|
||
case R_FRV_GOTTLSDESCHI:
|
||
case R_FRV_GOTTLSDESCLO:
|
||
case R_FRV_GOTTLSOFF12:
|
||
case R_FRV_GOTTLSOFFHI:
|
||
case R_FRV_GOTTLSOFFLO:
|
||
/* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
|
||
here, since we do want to apply the addend to the others.
|
||
Note that we've applied the addend to GOTOFFHI before we
|
||
shifted it right. */
|
||
case R_FRV_GOTOFFHI:
|
||
case R_FRV_TLSMOFFHI:
|
||
relocation -= rel->r_addend;
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
|
||
if (r_type == R_FRV_HI16)
|
||
r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
|
||
|
||
else if (r_type == R_FRV_LO16)
|
||
r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
|
||
|
||
else if (r_type == R_FRV_LABEL24 || r_type == R_FRV_GETTLSOFF)
|
||
r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
|
||
contents, relocation);
|
||
|
||
else if (r_type == R_FRV_GPREL12)
|
||
r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
|
||
contents, relocation);
|
||
|
||
else if (r_type == R_FRV_GPRELU12)
|
||
r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
|
||
contents, relocation);
|
||
|
||
else if (r_type == R_FRV_GPRELLO)
|
||
r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
|
||
contents, relocation);
|
||
|
||
else if (r_type == R_FRV_GPRELHI)
|
||
r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
|
||
contents, relocation);
|
||
|
||
else if (r_type == R_FRV_TLSOFF
|
||
|| r_type == R_FRV_TLSDESC_VALUE)
|
||
r = bfd_reloc_notsupported;
|
||
|
||
else
|
||
r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
|
||
rel, relocation);
|
||
|
||
if (r != bfd_reloc_ok)
|
||
{
|
||
const char * msg = (const char *) NULL;
|
||
|
||
switch (r)
|
||
{
|
||
case bfd_reloc_overflow:
|
||
(*info->callbacks->reloc_overflow)
|
||
(info, (h ? &h->root : NULL), name, howto->name,
|
||
(bfd_vma) 0, input_bfd, input_section, rel->r_offset);
|
||
break;
|
||
|
||
case bfd_reloc_undefined:
|
||
(*info->callbacks->undefined_symbol)
|
||
(info, name, input_bfd, input_section, rel->r_offset, TRUE);
|
||
break;
|
||
|
||
case bfd_reloc_outofrange:
|
||
msg = _("internal error: out of range error");
|
||
break;
|
||
|
||
case bfd_reloc_notsupported:
|
||
msg = _("internal error: unsupported relocation error");
|
||
break;
|
||
|
||
case bfd_reloc_dangerous:
|
||
msg = _("internal error: dangerous relocation");
|
||
break;
|
||
|
||
default:
|
||
msg = _("internal error: unknown error");
|
||
break;
|
||
}
|
||
|
||
if (msg)
|
||
{
|
||
info->callbacks->einfo
|
||
/* xgettext:c-format */
|
||
(_("%H: reloc against `%s': %s\n"),
|
||
input_bfd, input_section, rel->r_offset, name, msg);
|
||
return FALSE;
|
||
}
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Return the section that should be marked against GC for a given
|
||
relocation. */
|
||
|
||
static asection *
|
||
elf32_frv_gc_mark_hook (asection *sec,
|
||
struct bfd_link_info *info,
|
||
Elf_Internal_Rela *rel,
|
||
struct elf_link_hash_entry *h,
|
||
Elf_Internal_Sym *sym)
|
||
{
|
||
if (h != NULL)
|
||
switch (ELF32_R_TYPE (rel->r_info))
|
||
{
|
||
case R_FRV_GNU_VTINHERIT:
|
||
case R_FRV_GNU_VTENTRY:
|
||
return NULL;
|
||
}
|
||
|
||
return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
|
||
}
|
||
|
||
/* Hook called by the linker routine which adds symbols from an object
|
||
file. We use it to put .comm items in .scomm, and not .comm. */
|
||
|
||
static bfd_boolean
|
||
elf32_frv_add_symbol_hook (bfd *abfd,
|
||
struct bfd_link_info *info,
|
||
Elf_Internal_Sym *sym,
|
||
const char **namep ATTRIBUTE_UNUSED,
|
||
flagword *flagsp ATTRIBUTE_UNUSED,
|
||
asection **secp,
|
||
bfd_vma *valp)
|
||
{
|
||
if (sym->st_shndx == SHN_COMMON
|
||
&& !bfd_link_relocatable (info)
|
||
&& (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
|
||
{
|
||
/* Common symbols less than or equal to -G nn bytes are
|
||
automatically put into .sbss. */
|
||
|
||
asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
|
||
|
||
if (scomm == NULL)
|
||
{
|
||
scomm = bfd_make_section_with_flags (abfd, ".scommon",
|
||
(SEC_ALLOC
|
||
| SEC_IS_COMMON
|
||
| SEC_LINKER_CREATED));
|
||
if (scomm == NULL)
|
||
return FALSE;
|
||
}
|
||
|
||
*secp = scomm;
|
||
*valp = sym->st_size;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* We need dynamic symbols for every section, since segments can
|
||
relocate independently. */
|
||
static bfd_boolean
|
||
_frvfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
|
||
struct bfd_link_info *info
|
||
ATTRIBUTE_UNUSED,
|
||
asection *p ATTRIBUTE_UNUSED)
|
||
{
|
||
switch (elf_section_data (p)->this_hdr.sh_type)
|
||
{
|
||
case SHT_PROGBITS:
|
||
case SHT_NOBITS:
|
||
/* If sh_type is yet undecided, assume it could be
|
||
SHT_PROGBITS/SHT_NOBITS. */
|
||
case SHT_NULL:
|
||
return FALSE;
|
||
|
||
/* There shouldn't be section relative relocations
|
||
against any other section. */
|
||
default:
|
||
return TRUE;
|
||
}
|
||
}
|
||
|
||
/* Create a .got section, as well as its additional info field. This
|
||
is almost entirely copied from
|
||
elflink.c:_bfd_elf_create_got_section(). */
|
||
|
||
static bfd_boolean
|
||
_frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
|
||
{
|
||
flagword flags, pltflags;
|
||
asection *s;
|
||
struct elf_link_hash_entry *h;
|
||
struct bfd_link_hash_entry *bh;
|
||
const struct elf_backend_data *bed = get_elf_backend_data (abfd);
|
||
int ptralign;
|
||
int offset;
|
||
|
||
/* This function may be called more than once. */
|
||
s = elf_hash_table (info)->sgot;
|
||
if (s != NULL)
|
||
return TRUE;
|
||
|
||
/* Machine specific: although pointers are 32-bits wide, we want the
|
||
GOT to be aligned to a 64-bit boundary, such that function
|
||
descriptors in it can be accessed with 64-bit loads and
|
||
stores. */
|
||
ptralign = 3;
|
||
|
||
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
|
||
| SEC_LINKER_CREATED);
|
||
pltflags = flags;
|
||
|
||
s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
|
||
elf_hash_table (info)->sgot = s;
|
||
if (s == NULL
|
||
|| !bfd_set_section_alignment (abfd, s, ptralign))
|
||
return FALSE;
|
||
|
||
if (bed->want_got_sym)
|
||
{
|
||
/* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
|
||
(or .got.plt) section. We don't do this in the linker script
|
||
because we don't want to define the symbol if we are not creating
|
||
a global offset table. */
|
||
h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
|
||
elf_hash_table (info)->hgot = h;
|
||
if (h == NULL)
|
||
return FALSE;
|
||
|
||
/* Machine-specific: we want the symbol for executables as
|
||
well. */
|
||
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
||
return FALSE;
|
||
}
|
||
|
||
/* The first bit of the global offset table is the header. */
|
||
s->size += bed->got_header_size;
|
||
|
||
/* This is the machine-specific part. Create and initialize section
|
||
data for the got. */
|
||
if (IS_FDPIC (abfd))
|
||
{
|
||
frvfdpic_relocs_info (info) = htab_try_create (1,
|
||
frvfdpic_relocs_info_hash,
|
||
frvfdpic_relocs_info_eq,
|
||
(htab_del) NULL);
|
||
if (! frvfdpic_relocs_info (info))
|
||
return FALSE;
|
||
|
||
s = bfd_make_section_anyway_with_flags (abfd, ".rel.got",
|
||
(flags | SEC_READONLY));
|
||
elf_hash_table (info)->srelgot = s;
|
||
if (s == NULL
|
||
|| ! bfd_set_section_alignment (abfd, s, 2))
|
||
return FALSE;
|
||
|
||
/* Machine-specific. */
|
||
s = bfd_make_section_anyway_with_flags (abfd, ".rofixup",
|
||
(flags | SEC_READONLY));
|
||
if (s == NULL
|
||
|| ! bfd_set_section_alignment (abfd, s, 2))
|
||
return FALSE;
|
||
|
||
frvfdpic_gotfixup_section (info) = s;
|
||
offset = -2048;
|
||
flags = BSF_GLOBAL;
|
||
}
|
||
else
|
||
{
|
||
offset = 2048;
|
||
flags = BSF_GLOBAL | BSF_WEAK;
|
||
}
|
||
|
||
/* Define _gp in .rofixup, for FDPIC, or .got otherwise. If it
|
||
turns out that we're linking with a different linker script, the
|
||
linker script will override it. */
|
||
bh = NULL;
|
||
if (!(_bfd_generic_link_add_one_symbol
|
||
(info, abfd, "_gp", flags, s, offset, (const char *) NULL, FALSE,
|
||
bed->collect, &bh)))
|
||
return FALSE;
|
||
h = (struct elf_link_hash_entry *) bh;
|
||
h->def_regular = 1;
|
||
h->type = STT_OBJECT;
|
||
/* h->other = STV_HIDDEN; */ /* Should we? */
|
||
|
||
/* Machine-specific: we want the symbol for executables as well. */
|
||
if (IS_FDPIC (abfd) && ! bfd_elf_link_record_dynamic_symbol (info, h))
|
||
return FALSE;
|
||
|
||
if (!IS_FDPIC (abfd))
|
||
return TRUE;
|
||
|
||
/* FDPIC supports Thread Local Storage, and this may require a
|
||
procedure linkage table for TLS PLT entries. */
|
||
|
||
/* This is mostly copied from
|
||
elflink.c:_bfd_elf_create_dynamic_sections(). */
|
||
|
||
flags = pltflags;
|
||
pltflags |= SEC_CODE;
|
||
if (bed->plt_not_loaded)
|
||
pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
|
||
if (bed->plt_readonly)
|
||
pltflags |= SEC_READONLY;
|
||
|
||
s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
|
||
if (s == NULL
|
||
|| ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
|
||
return FALSE;
|
||
/* FRV-specific: remember it. */
|
||
frvfdpic_plt_section (info) = s;
|
||
|
||
/* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
|
||
.plt section. */
|
||
if (bed->want_plt_sym)
|
||
{
|
||
h = _bfd_elf_define_linkage_sym (abfd, info, s,
|
||
"_PROCEDURE_LINKAGE_TABLE_");
|
||
elf_hash_table (info)->hplt = h;
|
||
if (h == NULL)
|
||
return FALSE;
|
||
}
|
||
|
||
/* FRV-specific: we want rel relocations for the plt. */
|
||
s = bfd_make_section_anyway_with_flags (abfd, ".rel.plt",
|
||
flags | SEC_READONLY);
|
||
if (s == NULL
|
||
|| ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
|
||
return FALSE;
|
||
/* FRV-specific: remember it. */
|
||
frvfdpic_pltrel_section (info) = s;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Make sure the got and plt sections exist, and that our pointers in
|
||
the link hash table point to them. */
|
||
|
||
static bfd_boolean
|
||
elf32_frvfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
|
||
{
|
||
/* This is mostly copied from
|
||
elflink.c:_bfd_elf_create_dynamic_sections(). */
|
||
flagword flags;
|
||
asection *s;
|
||
const struct elf_backend_data *bed = get_elf_backend_data (abfd);
|
||
|
||
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
|
||
| SEC_LINKER_CREATED);
|
||
|
||
/* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
|
||
.rel[a].bss sections. */
|
||
|
||
/* FRV-specific: we want to create the GOT and the PLT in the FRV
|
||
way. */
|
||
if (! _frv_create_got_section (abfd, info))
|
||
return FALSE;
|
||
|
||
/* FRV-specific: make sure we created everything we wanted. */
|
||
BFD_ASSERT (frvfdpic_got_section (info) && frvfdpic_gotrel_section (info)
|
||
&& frvfdpic_gotfixup_section (info)
|
||
&& frvfdpic_plt_section (info)
|
||
&& frvfdpic_pltrel_section (info));
|
||
|
||
if (bed->want_dynbss)
|
||
{
|
||
/* The .dynbss section is a place to put symbols which are defined
|
||
by dynamic objects, are referenced by regular objects, and are
|
||
not functions. We must allocate space for them in the process
|
||
image and use a R_*_COPY reloc to tell the dynamic linker to
|
||
initialize them at run time. The linker script puts the .dynbss
|
||
section into the .bss section of the final image. */
|
||
s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
|
||
SEC_ALLOC | SEC_LINKER_CREATED);
|
||
if (s == NULL)
|
||
return FALSE;
|
||
|
||
/* The .rel[a].bss section holds copy relocs. This section is not
|
||
normally needed. We need to create it here, though, so that the
|
||
linker will map it to an output section. We can't just create it
|
||
only if we need it, because we will not know whether we need it
|
||
until we have seen all the input files, and the first time the
|
||
main linker code calls BFD after examining all the input files
|
||
(size_dynamic_sections) the input sections have already been
|
||
mapped to the output sections. If the section turns out not to
|
||
be needed, we can discard it later. We will never need this
|
||
section when generating a shared object, since they do not use
|
||
copy relocs. */
|
||
if (! bfd_link_pic (info))
|
||
{
|
||
s = bfd_make_section_anyway_with_flags (abfd,
|
||
(bed->default_use_rela_p
|
||
? ".rela.bss" : ".rel.bss"),
|
||
flags | SEC_READONLY);
|
||
if (s == NULL
|
||
|| ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
|
||
return FALSE;
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Compute the total GOT and PLT size required by each symbol in each
|
||
range. Symbols may require up to 4 words in the GOT: an entry
|
||
pointing to the symbol, an entry pointing to its function
|
||
descriptor, and a private function descriptors taking two
|
||
words. */
|
||
|
||
static void
|
||
_frvfdpic_count_nontls_entries (struct frvfdpic_relocs_info *entry,
|
||
struct _frvfdpic_dynamic_got_info *dinfo)
|
||
{
|
||
/* Allocate space for a GOT entry pointing to the symbol. */
|
||
if (entry->got12)
|
||
dinfo->got12 += 4;
|
||
else if (entry->gotlos)
|
||
dinfo->gotlos += 4;
|
||
else if (entry->gothilo)
|
||
dinfo->gothilo += 4;
|
||
else
|
||
entry->relocs32--;
|
||
entry->relocs32++;
|
||
|
||
/* Allocate space for a GOT entry pointing to the function
|
||
descriptor. */
|
||
if (entry->fdgot12)
|
||
dinfo->got12 += 4;
|
||
else if (entry->fdgotlos)
|
||
dinfo->gotlos += 4;
|
||
else if (entry->fdgothilo)
|
||
dinfo->gothilo += 4;
|
||
else
|
||
entry->relocsfd--;
|
||
entry->relocsfd++;
|
||
|
||
/* Decide whether we need a PLT entry, a function descriptor in the
|
||
GOT, and a lazy PLT entry for this symbol. */
|
||
entry->plt = entry->call
|
||
&& entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
|
||
&& elf_hash_table (dinfo->info)->dynamic_sections_created;
|
||
entry->privfd = entry->plt
|
||
|| entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo
|
||
|| ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo)
|
||
&& (entry->symndx != -1
|
||
|| FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
|
||
entry->lazyplt = entry->privfd
|
||
&& entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
|
||
&& ! (dinfo->info->flags & DF_BIND_NOW)
|
||
&& elf_hash_table (dinfo->info)->dynamic_sections_created;
|
||
|
||
/* Allocate space for a function descriptor. */
|
||
if (entry->fdgoff12)
|
||
dinfo->fd12 += 8;
|
||
else if (entry->fdgofflos)
|
||
dinfo->fdlos += 8;
|
||
else if (entry->privfd && entry->plt)
|
||
dinfo->fdplt += 8;
|
||
else if (entry->privfd)
|
||
dinfo->fdhilo += 8;
|
||
else
|
||
entry->relocsfdv--;
|
||
entry->relocsfdv++;
|
||
|
||
if (entry->lazyplt)
|
||
dinfo->lzplt += 8;
|
||
}
|
||
|
||
/* Compute the total GOT size required by each TLS symbol in each
|
||
range. Symbols may require up to 5 words in the GOT: an entry
|
||
holding the TLS offset for the symbol, and an entry with a full TLS
|
||
descriptor taking 4 words. */
|
||
|
||
static void
|
||
_frvfdpic_count_tls_entries (struct frvfdpic_relocs_info *entry,
|
||
struct _frvfdpic_dynamic_got_info *dinfo,
|
||
bfd_boolean subtract)
|
||
{
|
||
const int l = subtract ? -1 : 1;
|
||
|
||
/* Allocate space for a GOT entry with the TLS offset of the
|
||
symbol. */
|
||
if (entry->tlsoff12)
|
||
dinfo->got12 += 4 * l;
|
||
else if (entry->tlsofflos)
|
||
dinfo->gotlos += 4 * l;
|
||
else if (entry->tlsoffhilo)
|
||
dinfo->gothilo += 4 * l;
|
||
else
|
||
entry->relocstlsoff -= l;
|
||
entry->relocstlsoff += l;
|
||
|
||
/* If there's any TLSOFF relocation, mark the output file as not
|
||
suitable for dlopening. This mark will remain even if we relax
|
||
all such relocations, but this is not a problem, since we'll only
|
||
do so for executables, and we definitely don't want anyone
|
||
dlopening executables. */
|
||
if (entry->relocstlsoff)
|
||
dinfo->info->flags |= DF_STATIC_TLS;
|
||
|
||
/* Allocate space for a TLS descriptor. */
|
||
if (entry->tlsdesc12)
|
||
dinfo->tlsd12 += 8 * l;
|
||
else if (entry->tlsdesclos)
|
||
dinfo->tlsdlos += 8 * l;
|
||
else if (entry->tlsplt)
|
||
dinfo->tlsdplt += 8 * l;
|
||
else if (entry->tlsdeschilo)
|
||
dinfo->tlsdhilo += 8 * l;
|
||
else
|
||
entry->relocstlsd -= l;
|
||
entry->relocstlsd += l;
|
||
}
|
||
|
||
/* Compute the number of dynamic relocations and fixups that a symbol
|
||
requires, and add (or subtract) from the grand and per-symbol
|
||
totals. */
|
||
|
||
static void
|
||
_frvfdpic_count_relocs_fixups (struct frvfdpic_relocs_info *entry,
|
||
struct _frvfdpic_dynamic_got_info *dinfo,
|
||
bfd_boolean subtract)
|
||
{
|
||
bfd_vma relocs = 0, fixups = 0, tlsrets = 0;
|
||
|
||
if (!bfd_link_pde (dinfo->info))
|
||
{
|
||
relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv
|
||
+ entry->relocstlsd;
|
||
|
||
/* In the executable, TLS relocations to symbols that bind
|
||
locally (including those that resolve to global TLS offsets)
|
||
are resolved immediately, without any need for fixups or
|
||
dynamic relocations. In shared libraries, however, we must
|
||
emit dynamic relocations even for local symbols, because we
|
||
don't know the module id the library is going to get at
|
||
run-time, nor its TLS base offset. */
|
||
if (!bfd_link_executable (dinfo->info)
|
||
|| (entry->symndx == -1
|
||
&& ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
|
||
relocs += entry->relocstlsoff;
|
||
}
|
||
else
|
||
{
|
||
if (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
|
||
{
|
||
if (entry->symndx != -1
|
||
|| entry->d.h->root.type != bfd_link_hash_undefweak)
|
||
fixups += entry->relocs32 + 2 * entry->relocsfdv;
|
||
fixups += entry->relocstlsd;
|
||
tlsrets += entry->relocstlsd;
|
||
}
|
||
else
|
||
{
|
||
relocs += entry->relocs32 + entry->relocsfdv
|
||
+ entry->relocstlsoff + entry->relocstlsd;
|
||
}
|
||
|
||
if (entry->symndx != -1
|
||
|| FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
|
||
{
|
||
if (entry->symndx != -1
|
||
|| entry->d.h->root.type != bfd_link_hash_undefweak)
|
||
fixups += entry->relocsfd;
|
||
}
|
||
else
|
||
relocs += entry->relocsfd;
|
||
}
|
||
|
||
if (subtract)
|
||
{
|
||
relocs = - relocs;
|
||
fixups = - fixups;
|
||
tlsrets = - tlsrets;
|
||
}
|
||
|
||
entry->dynrelocs += relocs;
|
||
entry->fixups += fixups;
|
||
dinfo->relocs += relocs;
|
||
dinfo->fixups += fixups;
|
||
dinfo->tls_ret_refs += tlsrets;
|
||
}
|
||
|
||
/* Look for opportunities to relax TLS relocations. We can assume
|
||
we're linking the main executable or a static-tls library, since
|
||
otherwise we wouldn't have got here. When relaxing, we have to
|
||
first undo any previous accounting of TLS uses of fixups, dynamic
|
||
relocations, GOT and PLT entries. */
|
||
|
||
static void
|
||
_frvfdpic_relax_tls_entries (struct frvfdpic_relocs_info *entry,
|
||
struct _frvfdpic_dynamic_got_info *dinfo,
|
||
bfd_boolean relaxing)
|
||
{
|
||
bfd_boolean changed = ! relaxing;
|
||
|
||
BFD_ASSERT (bfd_link_executable (dinfo->info)
|
||
|| (dinfo->info->flags & DF_STATIC_TLS));
|
||
|
||
if (entry->tlsdesc12 || entry->tlsdesclos || entry->tlsdeschilo)
|
||
{
|
||
if (! changed)
|
||
{
|
||
_frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
|
||
_frvfdpic_count_tls_entries (entry, dinfo, TRUE);
|
||
changed = TRUE;
|
||
}
|
||
|
||
/* When linking an executable, we can always decay GOTTLSDESC to
|
||
TLSMOFF, if the symbol is local, or GOTTLSOFF, otherwise.
|
||
When linking a static-tls shared library, using TLSMOFF is
|
||
not an option, but we can still use GOTTLSOFF. When decaying
|
||
to GOTTLSOFF, we must keep the GOT entry in range. We know
|
||
it has to fit because we'll be trading the 4 words of hte TLS
|
||
descriptor for a single word in the same range. */
|
||
if (! bfd_link_executable (dinfo->info)
|
||
|| (entry->symndx == -1
|
||
&& ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
|
||
{
|
||
entry->tlsoff12 |= entry->tlsdesc12;
|
||
entry->tlsofflos |= entry->tlsdesclos;
|
||
entry->tlsoffhilo |= entry->tlsdeschilo;
|
||
}
|
||
|
||
entry->tlsdesc12 = entry->tlsdesclos = entry->tlsdeschilo = 0;
|
||
}
|
||
|
||
/* We can only decay TLSOFFs or call #gettlsoff to TLSMOFF in the
|
||
main executable. We have to check whether the symbol's TLSOFF is
|
||
in range for a setlos. For symbols with a hash entry, we can
|
||
determine exactly what to do; for others locals, we don't have
|
||
addresses handy, so we use the size of the TLS section as an
|
||
approximation. If we get it wrong, we'll retain a GOT entry
|
||
holding the TLS offset (without dynamic relocations or fixups),
|
||
but we'll still optimize away the loads from it. Since TLS sizes
|
||
are generally very small, it's probably not worth attempting to
|
||
do better than this. */
|
||
if ((entry->tlsplt
|
||
|| entry->tlsoff12 || entry->tlsofflos || entry->tlsoffhilo)
|
||
&& bfd_link_executable (dinfo->info) && relaxing
|
||
&& ((entry->symndx == -1
|
||
&& FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
|
||
/* The above may hold for an undefweak TLS symbol, so make
|
||
sure we don't have this case before accessing def.value
|
||
and def.section. */
|
||
&& (entry->d.h->root.type == bfd_link_hash_undefweak
|
||
|| (bfd_vma)(entry->d.h->root.u.def.value
|
||
+ (entry->d.h->root.u.def.section
|
||
->output_section->vma)
|
||
+ entry->d.h->root.u.def.section->output_offset
|
||
+ entry->addend
|
||
- tls_biased_base (dinfo->info)
|
||
+ 32768) < (bfd_vma)65536))
|
||
|| (entry->symndx != -1
|
||
&& (elf_hash_table (dinfo->info)->tls_sec->size
|
||
+ entry->addend < 32768 + FRVFDPIC_TLS_BIAS))))
|
||
{
|
||
if (! changed)
|
||
{
|
||
_frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
|
||
_frvfdpic_count_tls_entries (entry, dinfo, TRUE);
|
||
changed = TRUE;
|
||
}
|
||
|
||
entry->tlsplt =
|
||
entry->tlsoff12 = entry->tlsofflos = entry->tlsoffhilo = 0;
|
||
}
|
||
|
||
/* We can decay `call #gettlsoff' to a ldi #tlsoff if we already
|
||
have a #gottlsoff12 relocation for this entry, or if we can fit
|
||
one more in the 12-bit (and 16-bit) ranges. */
|
||
if (entry->tlsplt
|
||
&& (entry->tlsoff12
|
||
|| (relaxing
|
||
&& dinfo->got12 + dinfo->fd12 + dinfo->tlsd12 <= 4096 - 12 - 4
|
||
&& (dinfo->got12 + dinfo->fd12 + dinfo->tlsd12
|
||
+ dinfo->gotlos + dinfo->fdlos + dinfo->tlsdlos
|
||
<= 65536 - 12 - 4))))
|
||
{
|
||
if (! changed)
|
||
{
|
||
_frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
|
||
_frvfdpic_count_tls_entries (entry, dinfo, TRUE);
|
||
changed = TRUE;
|
||
}
|
||
|
||
entry->tlsoff12 = 1;
|
||
entry->tlsplt = 0;
|
||
}
|
||
|
||
if (changed)
|
||
{
|
||
_frvfdpic_count_tls_entries (entry, dinfo, FALSE);
|
||
_frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
|
||
}
|
||
|
||
return;
|
||
}
|
||
|
||
/* Compute the total GOT and PLT size required by each symbol in each range. *
|
||
Symbols may require up to 4 words in the GOT: an entry pointing to
|
||
the symbol, an entry pointing to its function descriptor, and a
|
||
private function descriptors taking two words. */
|
||
|
||
static int
|
||
_frvfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
|
||
{
|
||
struct frvfdpic_relocs_info *entry = *entryp;
|
||
struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
|
||
|
||
_frvfdpic_count_nontls_entries (entry, dinfo);
|
||
|
||
if (bfd_link_executable (dinfo->info)
|
||
|| (dinfo->info->flags & DF_STATIC_TLS))
|
||
_frvfdpic_relax_tls_entries (entry, dinfo, FALSE);
|
||
else
|
||
{
|
||
_frvfdpic_count_tls_entries (entry, dinfo, FALSE);
|
||
_frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
|
||
}
|
||
|
||
return 1;
|
||
}
|
||
|
||
/* Determine the positive and negative ranges to be used by each
|
||
offset range in the GOT. FDCUR and CUR, that must be aligned to a
|
||
double-word boundary, are the minimum (negative) and maximum
|
||
(positive) GOT offsets already used by previous ranges, except for
|
||
an ODD entry that may have been left behind. GOT and FD indicate
|
||
the size of GOT entries and function descriptors that must be
|
||
placed within the range from -WRAP to WRAP. If there's room left,
|
||
up to FDPLT bytes should be reserved for additional function
|
||
descriptors. */
|
||
|
||
inline static bfd_signed_vma
|
||
_frvfdpic_compute_got_alloc_data (struct _frvfdpic_dynamic_got_alloc_data *gad,
|
||
bfd_signed_vma fdcur,
|
||
bfd_signed_vma odd,
|
||
bfd_signed_vma cur,
|
||
bfd_vma got,
|
||
bfd_vma fd,
|
||
bfd_vma fdplt,
|
||
bfd_vma tlsd,
|
||
bfd_vma tlsdplt,
|
||
bfd_vma wrap)
|
||
{
|
||
bfd_signed_vma wrapmin = -wrap;
|
||
const bfd_vma tdescsz = 8;
|
||
|
||
/* Start at the given initial points. */
|
||
gad->fdcur = fdcur;
|
||
gad->cur = cur;
|
||
|
||
/* If we had an incoming odd word and we have any got entries that
|
||
are going to use it, consume it, otherwise leave gad->odd at
|
||
zero. We might force gad->odd to zero and return the incoming
|
||
odd such that it is used by the next range, but then GOT entries
|
||
might appear to be out of order and we wouldn't be able to
|
||
shorten the GOT by one word if it turns out to end with an
|
||
unpaired GOT entry. */
|
||
if (odd && got)
|
||
{
|
||
gad->odd = odd;
|
||
got -= 4;
|
||
odd = 0;
|
||
}
|
||
else
|
||
gad->odd = 0;
|
||
|
||
/* If we're left with an unpaired GOT entry, compute its location
|
||
such that we can return it. Otherwise, if got doesn't require an
|
||
odd number of words here, either odd was already zero in the
|
||
block above, or it was set to zero because got was non-zero, or
|
||
got was already zero. In the latter case, we want the value of
|
||
odd to carry over to the return statement, so we don't want to
|
||
reset odd unless the condition below is true. */
|
||
if (got & 4)
|
||
{
|
||
odd = cur + got;
|
||
got += 4;
|
||
}
|
||
|
||
/* Compute the tentative boundaries of this range. */
|
||
gad->max = cur + got;
|
||
gad->min = fdcur - fd;
|
||
gad->fdplt = 0;
|
||
|
||
/* If function descriptors took too much space, wrap some of them
|
||
around. */
|
||
if (gad->min < wrapmin)
|
||
{
|
||
gad->max += wrapmin - gad->min;
|
||
gad->tmin = gad->min = wrapmin;
|
||
}
|
||
|
||
/* If GOT entries took too much space, wrap some of them around.
|
||
This may well cause gad->min to become lower than wrapmin. This
|
||
will cause a relocation overflow later on, so we don't have to
|
||
report it here . */
|
||
if ((bfd_vma) gad->max > wrap)
|
||
{
|
||
gad->min -= gad->max - wrap;
|
||
gad->max = wrap;
|
||
}
|
||
|
||
/* Add TLS descriptors. */
|
||
gad->tmax = gad->max + tlsd;
|
||
gad->tmin = gad->min;
|
||
gad->tlsdplt = 0;
|
||
|
||
/* If TLS descriptors took too much space, wrap an integral number
|
||
of them around. */
|
||
if ((bfd_vma) gad->tmax > wrap)
|
||
{
|
||
bfd_vma wrapsize = gad->tmax - wrap;
|
||
|
||
wrapsize += tdescsz / 2;
|
||
wrapsize &= ~ tdescsz / 2;
|
||
|
||
gad->tmin -= wrapsize;
|
||
gad->tmax -= wrapsize;
|
||
}
|
||
|
||
/* If there is space left and we have function descriptors
|
||
referenced in PLT entries that could take advantage of shorter
|
||
offsets, place them now. */
|
||
if (fdplt && gad->tmin > wrapmin)
|
||
{
|
||
bfd_vma fds;
|
||
|
||
if ((bfd_vma) (gad->tmin - wrapmin) < fdplt)
|
||
fds = gad->tmin - wrapmin;
|
||
else
|
||
fds = fdplt;
|
||
|
||
fdplt -= fds;
|
||
gad->min -= fds;
|
||
gad->tmin -= fds;
|
||
gad->fdplt += fds;
|
||
}
|
||
|
||
/* If there is more space left, try to place some more function
|
||
descriptors for PLT entries. */
|
||
if (fdplt && (bfd_vma) gad->tmax < wrap)
|
||
{
|
||
bfd_vma fds;
|
||
|
||
if ((bfd_vma) (wrap - gad->tmax) < fdplt)
|
||
fds = wrap - gad->tmax;
|
||
else
|
||
fds = fdplt;
|
||
|
||
fdplt -= fds;
|
||
gad->max += fds;
|
||
gad->tmax += fds;
|
||
gad->fdplt += fds;
|
||
}
|
||
|
||
/* If there is space left and we have TLS descriptors referenced in
|
||
PLT entries that could take advantage of shorter offsets, place
|
||
them now. */
|
||
if (tlsdplt && gad->tmin > wrapmin)
|
||
{
|
||
bfd_vma tlsds;
|
||
|
||
if ((bfd_vma) (gad->tmin - wrapmin) < tlsdplt)
|
||
tlsds = (gad->tmin - wrapmin) & ~ (tdescsz / 2);
|
||
else
|
||
tlsds = tlsdplt;
|
||
|
||
tlsdplt -= tlsds;
|
||
gad->tmin -= tlsds;
|
||
gad->tlsdplt += tlsds;
|
||
}
|
||
|
||
/* If there is more space left, try to place some more TLS
|
||
descriptors for PLT entries. Although we could try to fit an
|
||
additional TLS descriptor with half of it just before before the
|
||
wrap point and another right past the wrap point, this might
|
||
cause us to run out of space for the next region, so don't do
|
||
it. */
|
||
if (tlsdplt && (bfd_vma) gad->tmax < wrap - tdescsz / 2)
|
||
{
|
||
bfd_vma tlsds;
|
||
|
||
if ((bfd_vma) (wrap - gad->tmax) < tlsdplt)
|
||
tlsds = (wrap - gad->tmax) & ~ (tdescsz / 2);
|
||
else
|
||
tlsds = tlsdplt;
|
||
|
||
tlsdplt -= tlsds;
|
||
gad->tmax += tlsds;
|
||
gad->tlsdplt += tlsds;
|
||
}
|
||
|
||
/* If odd was initially computed as an offset past the wrap point,
|
||
wrap it around. */
|
||
if (odd > gad->max)
|
||
odd = gad->min + odd - gad->max;
|
||
|
||
/* _frvfdpic_get_got_entry() below will always wrap gad->cur if needed
|
||
before returning, so do it here too. This guarantees that,
|
||
should cur and fdcur meet at the wrap point, they'll both be
|
||
equal to min. */
|
||
if (gad->cur == gad->max)
|
||
gad->cur = gad->min;
|
||
|
||
/* Ditto for _frvfdpic_get_tlsdesc_entry(). */
|
||
gad->tcur = gad->max;
|
||
if (gad->tcur == gad->tmax)
|
||
gad->tcur = gad->tmin;
|
||
|
||
return odd;
|
||
}
|
||
|
||
/* Compute the location of the next GOT entry, given the allocation
|
||
data for a range. */
|
||
|
||
inline static bfd_signed_vma
|
||
_frvfdpic_get_got_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
|
||
{
|
||
bfd_signed_vma ret;
|
||
|
||
if (gad->odd)
|
||
{
|
||
/* If there was an odd word left behind, use it. */
|
||
ret = gad->odd;
|
||
gad->odd = 0;
|
||
}
|
||
else
|
||
{
|
||
/* Otherwise, use the word pointed to by cur, reserve the next
|
||
as an odd word, and skip to the next pair of words, possibly
|
||
wrapping around. */
|
||
ret = gad->cur;
|
||
gad->odd = gad->cur + 4;
|
||
gad->cur += 8;
|
||
if (gad->cur == gad->max)
|
||
gad->cur = gad->min;
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
/* Compute the location of the next function descriptor entry in the
|
||
GOT, given the allocation data for a range. */
|
||
|
||
inline static bfd_signed_vma
|
||
_frvfdpic_get_fd_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
|
||
{
|
||
/* If we're at the bottom, wrap around, and only then allocate the
|
||
next pair of words. */
|
||
if (gad->fdcur == gad->min)
|
||
gad->fdcur = gad->max;
|
||
return gad->fdcur -= 8;
|
||
}
|
||
|
||
/* Compute the location of the next TLS descriptor entry in the GOT,
|
||
given the allocation data for a range. */
|
||
inline static bfd_signed_vma
|
||
_frvfdpic_get_tlsdesc_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
|
||
{
|
||
bfd_signed_vma ret;
|
||
|
||
ret = gad->tcur;
|
||
|
||
gad->tcur += 8;
|
||
|
||
/* If we're at the top of the region, wrap around to the bottom. */
|
||
if (gad->tcur == gad->tmax)
|
||
gad->tcur = gad->tmin;
|
||
|
||
return ret;
|
||
}
|
||
|
||
/* Assign GOT offsets for every GOT entry and function descriptor.
|
||
Doing everything in a single pass is tricky. */
|
||
|
||
static int
|
||
_frvfdpic_assign_got_entries (void **entryp, void *info_)
|
||
{
|
||
struct frvfdpic_relocs_info *entry = *entryp;
|
||
struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
|
||
|
||
if (entry->got12)
|
||
entry->got_entry = _frvfdpic_get_got_entry (&dinfo->got12);
|
||
else if (entry->gotlos)
|
||
entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
|
||
else if (entry->gothilo)
|
||
entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
|
||
|
||
if (entry->fdgot12)
|
||
entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->got12);
|
||
else if (entry->fdgotlos)
|
||
entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
|
||
else if (entry->fdgothilo)
|
||
entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
|
||
|
||
if (entry->fdgoff12)
|
||
entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
|
||
else if (entry->plt && dinfo->got12.fdplt)
|
||
{
|
||
dinfo->got12.fdplt -= 8;
|
||
entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
|
||
}
|
||
else if (entry->fdgofflos)
|
||
entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
|
||
else if (entry->plt && dinfo->gotlos.fdplt)
|
||
{
|
||
dinfo->gotlos.fdplt -= 8;
|
||
entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
|
||
}
|
||
else if (entry->plt)
|
||
{
|
||
dinfo->gothilo.fdplt -= 8;
|
||
entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
|
||
}
|
||
else if (entry->privfd)
|
||
entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
|
||
|
||
if (entry->tlsoff12)
|
||
entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->got12);
|
||
else if (entry->tlsofflos)
|
||
entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
|
||
else if (entry->tlsoffhilo)
|
||
entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
|
||
|
||
if (entry->tlsdesc12)
|
||
entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
|
||
else if (entry->tlsplt && dinfo->got12.tlsdplt)
|
||
{
|
||
dinfo->got12.tlsdplt -= 8;
|
||
entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
|
||
}
|
||
else if (entry->tlsdesclos)
|
||
entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
|
||
else if (entry->tlsplt && dinfo->gotlos.tlsdplt)
|
||
{
|
||
dinfo->gotlos.tlsdplt -= 8;
|
||
entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
|
||
}
|
||
else if (entry->tlsplt)
|
||
{
|
||
dinfo->gothilo.tlsdplt -= 8;
|
||
entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
|
||
}
|
||
else if (entry->tlsdeschilo)
|
||
entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
|
||
|
||
return 1;
|
||
}
|
||
|
||
/* Assign GOT offsets to private function descriptors used by PLT
|
||
entries (or referenced by 32-bit offsets), as well as PLT entries
|
||
and lazy PLT entries. */
|
||
|
||
static int
|
||
_frvfdpic_assign_plt_entries (void **entryp, void *info_)
|
||
{
|
||
struct frvfdpic_relocs_info *entry = *entryp;
|
||
struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
|
||
|
||
if (entry->privfd)
|
||
BFD_ASSERT (entry->fd_entry);
|
||
|
||
if (entry->plt)
|
||
{
|
||
int size;
|
||
|
||
/* We use the section's raw size to mark the location of the
|
||
next PLT entry. */
|
||
entry->plt_entry = frvfdpic_plt_section (dinfo->g.info)->size;
|
||
|
||
/* Figure out the length of this PLT entry based on the
|
||
addressing mode we need to reach the function descriptor. */
|
||
BFD_ASSERT (entry->fd_entry);
|
||
if (entry->fd_entry >= -(1 << (12 - 1))
|
||
&& entry->fd_entry < (1 << (12 - 1)))
|
||
size = 8;
|
||
else if (entry->fd_entry >= -(1 << (16 - 1))
|
||
&& entry->fd_entry < (1 << (16 - 1)))
|
||
size = 12;
|
||
else
|
||
size = 16;
|
||
|
||
frvfdpic_plt_section (dinfo->g.info)->size += size;
|
||
}
|
||
|
||
if (entry->lazyplt)
|
||
{
|
||
entry->lzplt_entry = dinfo->g.lzplt;
|
||
dinfo->g.lzplt += 8;
|
||
/* If this entry is the one that gets the resolver stub, account
|
||
for the additional instruction. */
|
||
if (entry->lzplt_entry % FRVFDPIC_LZPLT_BLOCK_SIZE
|
||
== FRVFDPIC_LZPLT_RESOLV_LOC)
|
||
dinfo->g.lzplt += 4;
|
||
}
|
||
|
||
if (entry->tlsplt)
|
||
{
|
||
int size;
|
||
|
||
entry->tlsplt_entry
|
||
= frvfdpic_plt_section (dinfo->g.info)->size;
|
||
|
||
if (bfd_link_executable (dinfo->g.info)
|
||
&& (entry->symndx != -1
|
||
|| FRVFDPIC_SYM_LOCAL (dinfo->g.info, entry->d.h)))
|
||
{
|
||
if ((bfd_signed_vma)entry->addend >= -(1 << (16 - 1))
|
||
/* FIXME: here we use the size of the TLS section
|
||
as an upper bound for the value of the TLS
|
||
symbol, because we may not know the exact value
|
||
yet. If we get it wrong, we'll just waste a
|
||
word in the PLT, and we should never get even
|
||
close to 32 KiB of TLS anyway. */
|
||
&& elf_hash_table (dinfo->g.info)->tls_sec
|
||
&& (elf_hash_table (dinfo->g.info)->tls_sec->size
|
||
+ (bfd_signed_vma)(entry->addend) <= (1 << (16 - 1))))
|
||
size = 8;
|
||
else
|
||
size = 12;
|
||
}
|
||
else if (entry->tlsoff_entry)
|
||
{
|
||
if (entry->tlsoff_entry >= -(1 << (12 - 1))
|
||
&& entry->tlsoff_entry < (1 << (12 - 1)))
|
||
size = 8;
|
||
else if (entry->tlsoff_entry >= -(1 << (16 - 1))
|
||
&& entry->tlsoff_entry < (1 << (16 - 1)))
|
||
size = 12;
|
||
else
|
||
size = 16;
|
||
}
|
||
else
|
||
{
|
||
BFD_ASSERT (entry->tlsdesc_entry);
|
||
|
||
if (entry->tlsdesc_entry >= -(1 << (12 - 1))
|
||
&& entry->tlsdesc_entry < (1 << (12 - 1)))
|
||
size = 8;
|
||
else if (entry->tlsdesc_entry >= -(1 << (16 - 1))
|
||
&& entry->tlsdesc_entry < (1 << (16 - 1)))
|
||
size = 12;
|
||
else
|
||
size = 16;
|
||
}
|
||
|
||
frvfdpic_plt_section (dinfo->g.info)->size += size;
|
||
}
|
||
|
||
return 1;
|
||
}
|
||
|
||
/* Cancel out any effects of calling _frvfdpic_assign_got_entries and
|
||
_frvfdpic_assign_plt_entries. */
|
||
|
||
static int
|
||
_frvfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
|
||
{
|
||
struct frvfdpic_relocs_info *entry = *entryp;
|
||
|
||
entry->got_entry = 0;
|
||
entry->fdgot_entry = 0;
|
||
entry->fd_entry = 0;
|
||
entry->plt_entry = (bfd_vma)-1;
|
||
entry->lzplt_entry = (bfd_vma)-1;
|
||
entry->tlsoff_entry = 0;
|
||
entry->tlsdesc_entry = 0;
|
||
entry->tlsplt_entry = (bfd_vma)-1;
|
||
|
||
return 1;
|
||
}
|
||
|
||
/* Follow indirect and warning hash entries so that each got entry
|
||
points to the final symbol definition. P must point to a pointer
|
||
to the hash table we're traversing. Since this traversal may
|
||
modify the hash table, we set this pointer to NULL to indicate
|
||
we've made a potentially-destructive change to the hash table, so
|
||
the traversal must be restarted. */
|
||
static int
|
||
_frvfdpic_resolve_final_relocs_info (void **entryp, void *p)
|
||
{
|
||
struct frvfdpic_relocs_info *entry = *entryp;
|
||
htab_t *htab = p;
|
||
|
||
if (entry->symndx == -1)
|
||
{
|
||
struct elf_link_hash_entry *h = entry->d.h;
|
||
struct frvfdpic_relocs_info *oentry;
|
||
|
||
while (h->root.type == bfd_link_hash_indirect
|
||
|| h->root.type == bfd_link_hash_warning)
|
||
h = (struct elf_link_hash_entry *)h->root.u.i.link;
|
||
|
||
if (entry->d.h == h)
|
||
return 1;
|
||
|
||
oentry = frvfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
|
||
NO_INSERT);
|
||
|
||
if (oentry)
|
||
{
|
||
/* Merge the two entries. */
|
||
frvfdpic_pic_merge_early_relocs_info (oentry, entry);
|
||
htab_clear_slot (*htab, entryp);
|
||
return 1;
|
||
}
|
||
|
||
entry->d.h = h;
|
||
|
||
/* If we can't find this entry with the new bfd hash, re-insert
|
||
it, and get the traversal restarted. */
|
||
if (! htab_find (*htab, entry))
|
||
{
|
||
htab_clear_slot (*htab, entryp);
|
||
entryp = htab_find_slot (*htab, entry, INSERT);
|
||
if (! *entryp)
|
||
*entryp = entry;
|
||
/* Abort the traversal, since the whole table may have
|
||
moved, and leave it up to the parent to restart the
|
||
process. */
|
||
*(htab_t *)p = NULL;
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
return 1;
|
||
}
|
||
|
||
/* Compute the total size of the GOT, the PLT, the dynamic relocations
|
||
section and the rofixup section. Assign locations for GOT and PLT
|
||
entries. */
|
||
|
||
static bfd_boolean
|
||
_frvfdpic_size_got_plt (bfd *output_bfd,
|
||
struct _frvfdpic_dynamic_got_plt_info *gpinfop)
|
||
{
|
||
bfd_signed_vma odd;
|
||
bfd_vma limit, tlslimit;
|
||
struct bfd_link_info *info = gpinfop->g.info;
|
||
bfd *dynobj = elf_hash_table (info)->dynobj;
|
||
|
||
memcpy (frvfdpic_dynamic_got_plt_info (info), &gpinfop->g,
|
||
sizeof (gpinfop->g));
|
||
|
||
odd = 12;
|
||
/* Compute the total size taken by entries in the 12-bit and 16-bit
|
||
ranges, to tell how many PLT function descriptors we can bring
|
||
into the 12-bit range without causing the 16-bit range to
|
||
overflow. */
|
||
limit = odd + gpinfop->g.got12 + gpinfop->g.gotlos
|
||
+ gpinfop->g.fd12 + gpinfop->g.fdlos
|
||
+ gpinfop->g.tlsd12 + gpinfop->g.tlsdlos;
|
||
if (limit < (bfd_vma)1 << 16)
|
||
limit = ((bfd_vma)1 << 16) - limit;
|
||
else
|
||
limit = 0;
|
||
if (gpinfop->g.fdplt < limit)
|
||
{
|
||
tlslimit = (limit - gpinfop->g.fdplt) & ~ (bfd_vma) 8;
|
||
limit = gpinfop->g.fdplt;
|
||
}
|
||
else
|
||
tlslimit = 0;
|
||
if (gpinfop->g.tlsdplt < tlslimit)
|
||
tlslimit = gpinfop->g.tlsdplt;
|
||
|
||
/* Determine the ranges of GOT offsets that we can use for each
|
||
range of addressing modes. */
|
||
odd = _frvfdpic_compute_got_alloc_data (&gpinfop->got12,
|
||
0,
|
||
odd,
|
||
16,
|
||
gpinfop->g.got12,
|
||
gpinfop->g.fd12,
|
||
limit,
|
||
gpinfop->g.tlsd12,
|
||
tlslimit,
|
||
(bfd_vma)1 << (12-1));
|
||
odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gotlos,
|
||
gpinfop->got12.tmin,
|
||
odd,
|
||
gpinfop->got12.tmax,
|
||
gpinfop->g.gotlos,
|
||
gpinfop->g.fdlos,
|
||
gpinfop->g.fdplt
|
||
- gpinfop->got12.fdplt,
|
||
gpinfop->g.tlsdlos,
|
||
gpinfop->g.tlsdplt
|
||
- gpinfop->got12.tlsdplt,
|
||
(bfd_vma)1 << (16-1));
|
||
odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gothilo,
|
||
gpinfop->gotlos.tmin,
|
||
odd,
|
||
gpinfop->gotlos.tmax,
|
||
gpinfop->g.gothilo,
|
||
gpinfop->g.fdhilo,
|
||
gpinfop->g.fdplt
|
||
- gpinfop->got12.fdplt
|
||
- gpinfop->gotlos.fdplt,
|
||
gpinfop->g.tlsdhilo,
|
||
gpinfop->g.tlsdplt
|
||
- gpinfop->got12.tlsdplt
|
||
- gpinfop->gotlos.tlsdplt,
|
||
(bfd_vma)1 << (32-1));
|
||
|
||
/* Now assign (most) GOT offsets. */
|
||
htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_got_entries,
|
||
gpinfop);
|
||
|
||
frvfdpic_got_section (info)->size = gpinfop->gothilo.tmax
|
||
- gpinfop->gothilo.tmin
|
||
/* If an odd word is the last word of the GOT, we don't need this
|
||
word to be part of the GOT. */
|
||
- (odd + 4 == gpinfop->gothilo.tmax ? 4 : 0);
|
||
if (frvfdpic_got_section (info)->size == 0)
|
||
frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
|
||
else if (frvfdpic_got_section (info)->size == 12
|
||
&& ! elf_hash_table (info)->dynamic_sections_created)
|
||
{
|
||
frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
|
||
frvfdpic_got_section (info)->size = 0;
|
||
}
|
||
/* This will be non-NULL during relaxation. The assumption is that
|
||
the size of one of these sections will never grow, only shrink,
|
||
so we can use the larger buffer we allocated before. */
|
||
else if (frvfdpic_got_section (info)->contents == NULL)
|
||
{
|
||
frvfdpic_got_section (info)->contents =
|
||
(bfd_byte *) bfd_zalloc (dynobj,
|
||
frvfdpic_got_section (info)->size);
|
||
if (frvfdpic_got_section (info)->contents == NULL)
|
||
return FALSE;
|
||
}
|
||
|
||
if (frvfdpic_gotrel_section (info))
|
||
/* Subtract the number of lzplt entries, since those will generate
|
||
relocations in the pltrel section. */
|
||
frvfdpic_gotrel_section (info)->size =
|
||
(gpinfop->g.relocs - gpinfop->g.lzplt / 8)
|
||
* get_elf_backend_data (output_bfd)->s->sizeof_rel;
|
||
else
|
||
BFD_ASSERT (gpinfop->g.relocs == 0);
|
||
if (frvfdpic_gotrel_section (info)->size == 0)
|
||
frvfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
|
||
else if (frvfdpic_gotrel_section (info)->contents == NULL)
|
||
{
|
||
frvfdpic_gotrel_section (info)->contents =
|
||
(bfd_byte *) bfd_zalloc (dynobj,
|
||
frvfdpic_gotrel_section (info)->size);
|
||
if (frvfdpic_gotrel_section (info)->contents == NULL)
|
||
return FALSE;
|
||
}
|
||
|
||
frvfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
|
||
if (frvfdpic_gotfixup_section (info)->size == 0)
|
||
frvfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
|
||
else if (frvfdpic_gotfixup_section (info)->contents == NULL)
|
||
{
|
||
frvfdpic_gotfixup_section (info)->contents =
|
||
(bfd_byte *) bfd_zalloc (dynobj,
|
||
frvfdpic_gotfixup_section (info)->size);
|
||
if (frvfdpic_gotfixup_section (info)->contents == NULL)
|
||
return FALSE;
|
||
}
|
||
|
||
if (frvfdpic_pltrel_section (info))
|
||
{
|
||
frvfdpic_pltrel_section (info)->size =
|
||
gpinfop->g.lzplt / 8
|
||
* get_elf_backend_data (output_bfd)->s->sizeof_rel;
|
||
if (frvfdpic_pltrel_section (info)->size == 0)
|
||
frvfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
|
||
else if (frvfdpic_pltrel_section (info)->contents == NULL)
|
||
{
|
||
frvfdpic_pltrel_section (info)->contents =
|
||
(bfd_byte *) bfd_zalloc (dynobj,
|
||
frvfdpic_pltrel_section (info)->size);
|
||
if (frvfdpic_pltrel_section (info)->contents == NULL)
|
||
return FALSE;
|
||
}
|
||
}
|
||
|
||
/* Add 4 bytes for every block of at most 65535 lazy PLT entries,
|
||
such that there's room for the additional instruction needed to
|
||
call the resolver. Since _frvfdpic_assign_got_entries didn't
|
||
account for them, our block size is 4 bytes smaller than the real
|
||
block size. */
|
||
if (frvfdpic_plt_section (info))
|
||
{
|
||
frvfdpic_plt_section (info)->size = gpinfop->g.lzplt
|
||
+ ((gpinfop->g.lzplt + (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) - 8)
|
||
/ (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) * 4);
|
||
}
|
||
|
||
/* Reset it, such that _frvfdpic_assign_plt_entries() can use it to
|
||
actually assign lazy PLT entries addresses. */
|
||
gpinfop->g.lzplt = 0;
|
||
|
||
/* Save information that we're going to need to generate GOT and PLT
|
||
entries. */
|
||
frvfdpic_got_initial_offset (info) = -gpinfop->gothilo.tmin;
|
||
|
||
if (get_elf_backend_data (output_bfd)->want_got_sym)
|
||
elf_hash_table (info)->hgot->root.u.def.value
|
||
= frvfdpic_got_initial_offset (info);
|
||
|
||
if (frvfdpic_plt_section (info))
|
||
frvfdpic_plt_initial_offset (info) =
|
||
frvfdpic_plt_section (info)->size;
|
||
|
||
/* Allocate a ret statement at plt_initial_offset, to be used by
|
||
locally-resolved TLS descriptors. */
|
||
if (gpinfop->g.tls_ret_refs)
|
||
frvfdpic_plt_section (info)->size += 4;
|
||
|
||
htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_plt_entries,
|
||
gpinfop);
|
||
|
||
/* Allocate the PLT section contents only after
|
||
_frvfdpic_assign_plt_entries has a chance to add the size of the
|
||
non-lazy PLT entries. */
|
||
if (frvfdpic_plt_section (info))
|
||
{
|
||
if (frvfdpic_plt_section (info)->size == 0)
|
||
frvfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
|
||
else if (frvfdpic_plt_section (info)->contents == NULL)
|
||
{
|
||
frvfdpic_plt_section (info)->contents =
|
||
(bfd_byte *) bfd_zalloc (dynobj,
|
||
frvfdpic_plt_section (info)->size);
|
||
if (frvfdpic_plt_section (info)->contents == NULL)
|
||
return FALSE;
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Set the sizes of the dynamic sections. */
|
||
|
||
static bfd_boolean
|
||
elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd,
|
||
struct bfd_link_info *info)
|
||
{
|
||
bfd *dynobj;
|
||
asection *s;
|
||
struct _frvfdpic_dynamic_got_plt_info gpinfo;
|
||
|
||
dynobj = elf_hash_table (info)->dynobj;
|
||
BFD_ASSERT (dynobj != NULL);
|
||
|
||
if (elf_hash_table (info)->dynamic_sections_created)
|
||
{
|
||
/* Set the contents of the .interp section to the interpreter. */
|
||
if (bfd_link_executable (info) && !info->nointerp)
|
||
{
|
||
s = bfd_get_linker_section (dynobj, ".interp");
|
||
BFD_ASSERT (s != NULL);
|
||
s->size = sizeof ELF_DYNAMIC_INTERPRETER;
|
||
s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
|
||
}
|
||
}
|
||
|
||
memset (&gpinfo, 0, sizeof (gpinfo));
|
||
gpinfo.g.info = info;
|
||
|
||
for (;;)
|
||
{
|
||
htab_t relocs = frvfdpic_relocs_info (info);
|
||
|
||
htab_traverse (relocs, _frvfdpic_resolve_final_relocs_info, &relocs);
|
||
|
||
if (relocs == frvfdpic_relocs_info (info))
|
||
break;
|
||
}
|
||
|
||
htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_count_got_plt_entries,
|
||
&gpinfo.g);
|
||
|
||
/* Allocate space to save the summary information, we're going to
|
||
use it if we're doing relaxations. */
|
||
frvfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
|
||
|
||
if (!_frvfdpic_size_got_plt (output_bfd, &gpinfo))
|
||
return FALSE;
|
||
|
||
if (elf_hash_table (info)->dynamic_sections_created)
|
||
{
|
||
if (frvfdpic_got_section (info)->size)
|
||
if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
|
||
return FALSE;
|
||
|
||
if (frvfdpic_pltrel_section (info)->size)
|
||
if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
|
||
|| !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
|
||
|| !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
|
||
return FALSE;
|
||
|
||
if (frvfdpic_gotrel_section (info)->size)
|
||
if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
|
||
|| !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
|
||
|| !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
|
||
sizeof (Elf32_External_Rel)))
|
||
return FALSE;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static bfd_boolean
|
||
elf32_frvfdpic_always_size_sections (bfd *output_bfd,
|
||
struct bfd_link_info *info)
|
||
{
|
||
if (!bfd_link_relocatable (info)
|
||
&& !bfd_elf_stack_segment_size (output_bfd, info,
|
||
"__stacksize", DEFAULT_STACK_SIZE))
|
||
return FALSE;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Check whether any of the relocations was optimized away, and
|
||
subtract it from the relocation or fixup count. */
|
||
static bfd_boolean
|
||
_frvfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
|
||
struct bfd_link_info *info,
|
||
|
||
bfd_boolean *changed)
|
||
{
|
||
Elf_Internal_Shdr *symtab_hdr;
|
||
struct elf_link_hash_entry **sym_hashes;
|
||
Elf_Internal_Rela *rel, *erel;
|
||
|
||
if ((sec->flags & SEC_RELOC) == 0
|
||
|| sec->reloc_count == 0)
|
||
return TRUE;
|
||
|
||
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
||
sym_hashes = elf_sym_hashes (abfd);
|
||
|
||
rel = elf_section_data (sec)->relocs;
|
||
|
||
/* Now examine each relocation. */
|
||
for (erel = rel + sec->reloc_count; rel < erel; rel++)
|
||
{
|
||
struct elf_link_hash_entry *h;
|
||
unsigned long r_symndx;
|
||
struct frvfdpic_relocs_info *picrel;
|
||
struct _frvfdpic_dynamic_got_info *dinfo;
|
||
|
||
if (ELF32_R_TYPE (rel->r_info) != R_FRV_32
|
||
&& ELF32_R_TYPE (rel->r_info) != R_FRV_FUNCDESC)
|
||
continue;
|
||
|
||
if (_bfd_elf_section_offset (sec->output_section->owner,
|
||
info, sec, rel->r_offset)
|
||
!= (bfd_vma)-1)
|
||
continue;
|
||
|
||
r_symndx = ELF32_R_SYM (rel->r_info);
|
||
if (r_symndx < symtab_hdr->sh_info)
|
||
h = NULL;
|
||
else
|
||
{
|
||
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
||
while (h->root.type == bfd_link_hash_indirect
|
||
|| h->root.type == bfd_link_hash_warning)
|
||
h = (struct elf_link_hash_entry *)h->root.u.i.link;
|
||
}
|
||
|
||
if (h != NULL)
|
||
picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
|
||
abfd, h,
|
||
rel->r_addend, NO_INSERT);
|
||
else
|
||
picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info (info),
|
||
abfd, r_symndx,
|
||
rel->r_addend, NO_INSERT);
|
||
|
||
if (! picrel)
|
||
return FALSE;
|
||
|
||
*changed = TRUE;
|
||
dinfo = frvfdpic_dynamic_got_plt_info (info);
|
||
|
||
_frvfdpic_count_relocs_fixups (picrel, dinfo, TRUE);
|
||
if (ELF32_R_TYPE (rel->r_info) == R_FRV_32)
|
||
picrel->relocs32--;
|
||
else /* we know (ELF32_R_TYPE (rel->r_info) == R_FRV_FUNCDESC) */
|
||
picrel->relocsfd--;
|
||
_frvfdpic_count_relocs_fixups (picrel, dinfo, FALSE);
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static bfd_boolean
|
||
frvfdpic_elf_discard_info (bfd *ibfd,
|
||
struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
|
||
struct bfd_link_info *info)
|
||
{
|
||
bfd_boolean changed = FALSE;
|
||
asection *s;
|
||
bfd *obfd = NULL;
|
||
|
||
/* Account for relaxation of .eh_frame section. */
|
||
for (s = ibfd->sections; s; s = s->next)
|
||
if (s->sec_info_type == SEC_INFO_TYPE_EH_FRAME)
|
||
{
|
||
if (!_frvfdpic_check_discarded_relocs (ibfd, s, info, &changed))
|
||
return FALSE;
|
||
obfd = s->output_section->owner;
|
||
}
|
||
|
||
if (changed)
|
||
{
|
||
struct _frvfdpic_dynamic_got_plt_info gpinfo;
|
||
|
||
memset (&gpinfo, 0, sizeof (gpinfo));
|
||
memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info),
|
||
sizeof (gpinfo.g));
|
||
|
||
/* Clear GOT and PLT assignments. */
|
||
htab_traverse (frvfdpic_relocs_info (info),
|
||
_frvfdpic_reset_got_plt_entries,
|
||
NULL);
|
||
|
||
if (!_frvfdpic_size_got_plt (obfd, &gpinfo))
|
||
return FALSE;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Look for opportunities to relax TLS relocations. We can assume
|
||
we're linking the main executable or a static-tls library, since
|
||
otherwise we wouldn't have got here. */
|
||
|
||
static int
|
||
_frvfdpic_relax_got_plt_entries (void **entryp, void *dinfo_)
|
||
{
|
||
struct frvfdpic_relocs_info *entry = *entryp;
|
||
struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
|
||
|
||
_frvfdpic_relax_tls_entries (entry, dinfo, TRUE);
|
||
|
||
return 1;
|
||
}
|
||
|
||
static bfd_boolean
|
||
elf32_frvfdpic_relax_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
|
||
struct bfd_link_info *info, bfd_boolean *again)
|
||
{
|
||
struct _frvfdpic_dynamic_got_plt_info gpinfo;
|
||
|
||
if (bfd_link_relocatable (info))
|
||
(*info->callbacks->einfo)
|
||
(_("%P%F: --relax and -r may not be used together\n"));
|
||
|
||
/* If we return early, we didn't change anything. */
|
||
*again = FALSE;
|
||
|
||
/* We'll do our thing when requested to relax the GOT section. */
|
||
if (sec != frvfdpic_got_section (info))
|
||
return TRUE;
|
||
|
||
/* We can only relax when linking the main executable or a library
|
||
that can't be dlopened. */
|
||
if (! bfd_link_executable (info) && ! (info->flags & DF_STATIC_TLS))
|
||
return TRUE;
|
||
|
||
/* If there isn't a TLS section for this binary, we can't do
|
||
anything about its TLS relocations (it probably doesn't have
|
||
any. */
|
||
if (elf_hash_table (info)->tls_sec == NULL)
|
||
return TRUE;
|
||
|
||
memset (&gpinfo, 0, sizeof (gpinfo));
|
||
memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info), sizeof (gpinfo.g));
|
||
|
||
/* Now look for opportunities to relax, adjusting the GOT usage
|
||
as needed. */
|
||
htab_traverse (frvfdpic_relocs_info (info),
|
||
_frvfdpic_relax_got_plt_entries,
|
||
&gpinfo.g);
|
||
|
||
/* If we changed anything, reset and re-assign GOT and PLT entries. */
|
||
if (memcmp (frvfdpic_dynamic_got_plt_info (info),
|
||
&gpinfo.g, sizeof (gpinfo.g)) != 0)
|
||
{
|
||
/* Clear GOT and PLT assignments. */
|
||
htab_traverse (frvfdpic_relocs_info (info),
|
||
_frvfdpic_reset_got_plt_entries,
|
||
NULL);
|
||
|
||
/* The owner of the TLS section is the output bfd. There should
|
||
be a better way to get to it. */
|
||
if (!_frvfdpic_size_got_plt (elf_hash_table (info)->tls_sec->owner,
|
||
&gpinfo))
|
||
return FALSE;
|
||
|
||
/* Repeat until we don't make any further changes. We could fail to
|
||
introduce changes in a round if, for example, the 12-bit range is
|
||
full, but we later release some space by getting rid of TLS
|
||
descriptors in it. We have to repeat the whole process because
|
||
we might have changed the size of a section processed before this
|
||
one. */
|
||
*again = TRUE;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Fill in code and data in dynamic sections. */
|
||
|
||
static bfd_boolean
|
||
elf32_frv_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
|
||
struct bfd_link_info *info ATTRIBUTE_UNUSED)
|
||
{
|
||
/* Nothing to be done for non-FDPIC. */
|
||
return TRUE;
|
||
}
|
||
|
||
static bfd_boolean
|
||
elf32_frvfdpic_finish_dynamic_sections (bfd *output_bfd,
|
||
struct bfd_link_info *info)
|
||
{
|
||
bfd *dynobj;
|
||
asection *sdyn;
|
||
|
||
dynobj = elf_hash_table (info)->dynobj;
|
||
|
||
if (frvfdpic_dynamic_got_plt_info (info))
|
||
{
|
||
BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs == 0);
|
||
}
|
||
if (frvfdpic_got_section (info))
|
||
{
|
||
BFD_ASSERT (frvfdpic_gotrel_section (info)->size
|
||
== (frvfdpic_gotrel_section (info)->reloc_count
|
||
* sizeof (Elf32_External_Rel)));
|
||
|
||
if (frvfdpic_gotfixup_section (info))
|
||
{
|
||
struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
|
||
bfd_vma got_value = hgot->root.u.def.value
|
||
+ hgot->root.u.def.section->output_section->vma
|
||
+ hgot->root.u.def.section->output_offset;
|
||
struct bfd_link_hash_entry *hend;
|
||
|
||
_frvfdpic_add_rofixup (output_bfd, frvfdpic_gotfixup_section (info),
|
||
got_value, 0);
|
||
|
||
if (frvfdpic_gotfixup_section (info)->size
|
||
!= (frvfdpic_gotfixup_section (info)->reloc_count * 4))
|
||
{
|
||
error:
|
||
info->callbacks->einfo
|
||
("LINKER BUG: .rofixup section size mismatch\n");
|
||
return FALSE;
|
||
}
|
||
|
||
hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
|
||
FALSE, FALSE, TRUE);
|
||
if (hend
|
||
&& (hend->type == bfd_link_hash_defined
|
||
|| hend->type == bfd_link_hash_defweak)
|
||
&& hend->u.def.section->output_section != NULL)
|
||
{
|
||
bfd_vma value =
|
||
frvfdpic_gotfixup_section (info)->output_section->vma
|
||
+ frvfdpic_gotfixup_section (info)->output_offset
|
||
+ frvfdpic_gotfixup_section (info)->size
|
||
- hend->u.def.section->output_section->vma
|
||
- hend->u.def.section->output_offset;
|
||
BFD_ASSERT (hend->u.def.value == value);
|
||
if (hend->u.def.value != value)
|
||
goto error;
|
||
}
|
||
}
|
||
}
|
||
if (frvfdpic_pltrel_section (info))
|
||
{
|
||
BFD_ASSERT (frvfdpic_pltrel_section (info)->size
|
||
== (frvfdpic_pltrel_section (info)->reloc_count
|
||
* sizeof (Elf32_External_Rel)));
|
||
}
|
||
|
||
|
||
if (elf_hash_table (info)->dynamic_sections_created)
|
||
{
|
||
Elf32_External_Dyn * dyncon;
|
||
Elf32_External_Dyn * dynconend;
|
||
|
||
sdyn = bfd_get_linker_section (dynobj, ".dynamic");
|
||
|
||
BFD_ASSERT (sdyn != NULL);
|
||
|
||
dyncon = (Elf32_External_Dyn *) sdyn->contents;
|
||
dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
|
||
|
||
for (; dyncon < dynconend; dyncon++)
|
||
{
|
||
Elf_Internal_Dyn dyn;
|
||
|
||
bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
|
||
|
||
switch (dyn.d_tag)
|
||
{
|
||
default:
|
||
break;
|
||
|
||
case DT_PLTGOT:
|
||
dyn.d_un.d_ptr = frvfdpic_got_section (info)->output_section->vma
|
||
+ frvfdpic_got_section (info)->output_offset
|
||
+ frvfdpic_got_initial_offset (info);
|
||
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
||
break;
|
||
|
||
case DT_JMPREL:
|
||
dyn.d_un.d_ptr = frvfdpic_pltrel_section (info)
|
||
->output_section->vma
|
||
+ frvfdpic_pltrel_section (info)->output_offset;
|
||
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
||
break;
|
||
|
||
case DT_PLTRELSZ:
|
||
dyn.d_un.d_val = frvfdpic_pltrel_section (info)->size;
|
||
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Adjust a symbol defined by a dynamic object and referenced by a
|
||
regular object. */
|
||
|
||
static bfd_boolean
|
||
elf32_frvfdpic_adjust_dynamic_symbol
|
||
(struct bfd_link_info *info ATTRIBUTE_UNUSED,
|
||
struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
|
||
{
|
||
bfd * dynobj;
|
||
|
||
dynobj = elf_hash_table (info)->dynobj;
|
||
|
||
/* Make sure we know what is going on here. */
|
||
BFD_ASSERT (dynobj != NULL
|
||
&& (h->is_weakalias
|
||
|| (h->def_dynamic
|
||
&& h->ref_regular
|
||
&& !h->def_regular)));
|
||
|
||
/* If this is a weak symbol, and there is a real definition, the
|
||
processor independent code will have arranged for us to see the
|
||
real definition first, and we can just use the same value. */
|
||
if (h->is_weakalias)
|
||
{
|
||
struct elf_link_hash_entry *def = weakdef (h);
|
||
BFD_ASSERT (def->root.type == bfd_link_hash_defined);
|
||
h->root.u.def.section = def->root.u.def.section;
|
||
h->root.u.def.value = def->root.u.def.value;
|
||
return TRUE;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Perform any actions needed for dynamic symbols. */
|
||
|
||
static bfd_boolean
|
||
elf32_frvfdpic_finish_dynamic_symbol
|
||
(bfd *output_bfd ATTRIBUTE_UNUSED,
|
||
struct bfd_link_info *info ATTRIBUTE_UNUSED,
|
||
struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
|
||
Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
|
||
{
|
||
return TRUE;
|
||
}
|
||
|
||
/* Decide whether to attempt to turn absptr or lsda encodings in
|
||
shared libraries into pcrel within the given input section. */
|
||
|
||
static bfd_boolean
|
||
frvfdpic_elf_use_relative_eh_frame
|
||
(bfd *input_bfd ATTRIBUTE_UNUSED,
|
||
struct bfd_link_info *info ATTRIBUTE_UNUSED,
|
||
asection *eh_frame_section ATTRIBUTE_UNUSED)
|
||
{
|
||
/* We can't use PC-relative encodings in FDPIC binaries, in general. */
|
||
return FALSE;
|
||
}
|
||
|
||
/* Adjust the contents of an eh_frame_hdr section before they're output. */
|
||
|
||
static bfd_byte
|
||
frvfdpic_elf_encode_eh_address (bfd *abfd,
|
||
struct bfd_link_info *info,
|
||
asection *osec, bfd_vma offset,
|
||
asection *loc_sec, bfd_vma loc_offset,
|
||
bfd_vma *encoded)
|
||
{
|
||
struct elf_link_hash_entry *h;
|
||
|
||
h = elf_hash_table (info)->hgot;
|
||
BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
|
||
|
||
if (! h || (_frvfdpic_osec_to_segment (abfd, osec)
|
||
== _frvfdpic_osec_to_segment (abfd, loc_sec->output_section)))
|
||
return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
|
||
loc_sec, loc_offset, encoded);
|
||
|
||
BFD_ASSERT (_frvfdpic_osec_to_segment (abfd, osec)
|
||
== (_frvfdpic_osec_to_segment
|
||
(abfd, h->root.u.def.section->output_section)));
|
||
|
||
*encoded = osec->vma + offset
|
||
- (h->root.u.def.value
|
||
+ h->root.u.def.section->output_section->vma
|
||
+ h->root.u.def.section->output_offset);
|
||
|
||
return DW_EH_PE_datarel | DW_EH_PE_sdata4;
|
||
}
|
||
|
||
/* Look through the relocs for a section during the first phase.
|
||
|
||
Besides handling virtual table relocs for gc, we have to deal with
|
||
all sorts of PIC-related relocations. We describe below the
|
||
general plan on how to handle such relocations, even though we only
|
||
collect information at this point, storing them in hash tables for
|
||
perusal of later passes.
|
||
|
||
32 relocations are propagated to the linker output when creating
|
||
position-independent output. LO16 and HI16 relocations are not
|
||
supposed to be encountered in this case.
|
||
|
||
LABEL16 should always be resolvable by the linker, since it's only
|
||
used by branches.
|
||
|
||
LABEL24, on the other hand, is used by calls. If it turns out that
|
||
the target of a call is a dynamic symbol, a PLT entry must be
|
||
created for it, which triggers the creation of a private function
|
||
descriptor and, unless lazy binding is disabled, a lazy PLT entry.
|
||
|
||
GPREL relocations require the referenced symbol to be in the same
|
||
segment as _gp, but this can only be checked later.
|
||
|
||
All GOT, GOTOFF and FUNCDESC relocations require a .got section to
|
||
exist. LABEL24 might as well, since it may require a PLT entry,
|
||
that will require a got.
|
||
|
||
Non-FUNCDESC GOT relocations require a GOT entry to be created
|
||
regardless of whether the symbol is dynamic. However, since a
|
||
global symbol that turns out to not be exported may have the same
|
||
address of a non-dynamic symbol, we don't assign GOT entries at
|
||
this point, such that we can share them in this case. A relocation
|
||
for the GOT entry always has to be created, be it to offset a
|
||
private symbol by the section load address, be it to get the symbol
|
||
resolved dynamically.
|
||
|
||
FUNCDESC GOT relocations require a GOT entry to be created, and
|
||
handled as if a FUNCDESC relocation was applied to the GOT entry in
|
||
an object file.
|
||
|
||
FUNCDESC relocations referencing a symbol that turns out to NOT be
|
||
dynamic cause a private function descriptor to be created. The
|
||
FUNCDESC relocation then decays to a 32 relocation that points at
|
||
the private descriptor. If the symbol is dynamic, the FUNCDESC
|
||
relocation is propagated to the linker output, such that the
|
||
dynamic linker creates the canonical descriptor, pointing to the
|
||
dynamically-resolved definition of the function.
|
||
|
||
Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
|
||
symbols that are assigned to the same segment as the GOT, but we
|
||
can only check this later, after we know the complete set of
|
||
symbols defined and/or exported.
|
||
|
||
FUNCDESC GOTOFF relocations require a function descriptor to be
|
||
created and, unless lazy binding is disabled or the symbol is not
|
||
dynamic, a lazy PLT entry. Since we can't tell at this point
|
||
whether a symbol is going to be dynamic, we have to decide later
|
||
whether to create a lazy PLT entry or bind the descriptor directly
|
||
to the private function.
|
||
|
||
FUNCDESC_VALUE relocations are not supposed to be present in object
|
||
files, but they may very well be simply propagated to the linker
|
||
output, since they have no side effect.
|
||
|
||
|
||
A function descriptor always requires a FUNCDESC_VALUE relocation.
|
||
Whether it's in .plt.rel or not depends on whether lazy binding is
|
||
enabled and on whether the referenced symbol is dynamic.
|
||
|
||
The existence of a lazy PLT requires the resolverStub lazy PLT
|
||
entry to be present.
|
||
|
||
|
||
As for assignment of GOT, PLT and lazy PLT entries, and private
|
||
descriptors, we might do them all sequentially, but we can do
|
||
better than that. For example, we can place GOT entries and
|
||
private function descriptors referenced using 12-bit operands
|
||
closer to the PIC register value, such that these relocations don't
|
||
overflow. Those that are only referenced with LO16 relocations
|
||
could come next, but we may as well place PLT-required function
|
||
descriptors in the 12-bit range to make them shorter. Symbols
|
||
referenced with LO16/HI16 may come next, but we may place
|
||
additional function descriptors in the 16-bit range if we can
|
||
reliably tell that we've already placed entries that are ever
|
||
referenced with only LO16. PLT entries are therefore generated as
|
||
small as possible, while not introducing relocation overflows in
|
||
GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
|
||
generated before or after PLT entries, but not intermingled with
|
||
them, such that we can have more lazy PLT entries in range for a
|
||
branch to the resolverStub. The resolverStub should be emitted at
|
||
the most distant location from the first lazy PLT entry such that
|
||
it's still in range for a branch, or closer, if there isn't a need
|
||
for so many lazy PLT entries. Additional lazy PLT entries may be
|
||
emitted after the resolverStub, as long as branches are still in
|
||
range. If the branch goes out of range, longer lazy PLT entries
|
||
are emitted.
|
||
|
||
We could further optimize PLT and lazy PLT entries by giving them
|
||
priority in assignment to closer-to-gr17 locations depending on the
|
||
number of occurrences of references to them (assuming a function
|
||
that's called more often is more important for performance, so its
|
||
PLT entry should be faster), or taking hints from the compiler.
|
||
Given infinite time and money... :-) */
|
||
|
||
static bfd_boolean
|
||
elf32_frv_check_relocs (bfd *abfd,
|
||
struct bfd_link_info *info,
|
||
asection *sec,
|
||
const Elf_Internal_Rela *relocs)
|
||
{
|
||
Elf_Internal_Shdr *symtab_hdr;
|
||
struct elf_link_hash_entry **sym_hashes;
|
||
const Elf_Internal_Rela *rel;
|
||
const Elf_Internal_Rela *rel_end;
|
||
bfd *dynobj;
|
||
struct frvfdpic_relocs_info *picrel;
|
||
|
||
if (bfd_link_relocatable (info))
|
||
return TRUE;
|
||
|
||
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
||
sym_hashes = elf_sym_hashes (abfd);
|
||
|
||
dynobj = elf_hash_table (info)->dynobj;
|
||
rel_end = relocs + sec->reloc_count;
|
||
for (rel = relocs; rel < rel_end; rel++)
|
||
{
|
||
struct elf_link_hash_entry *h;
|
||
unsigned long r_symndx;
|
||
|
||
r_symndx = ELF32_R_SYM (rel->r_info);
|
||
if (r_symndx < symtab_hdr->sh_info)
|
||
h = NULL;
|
||
else
|
||
{
|
||
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
||
while (h->root.type == bfd_link_hash_indirect
|
||
|| h->root.type == bfd_link_hash_warning)
|
||
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
||
}
|
||
|
||
switch (ELF32_R_TYPE (rel->r_info))
|
||
{
|
||
case R_FRV_GETTLSOFF:
|
||
case R_FRV_TLSDESC_VALUE:
|
||
case R_FRV_GOTTLSDESC12:
|
||
case R_FRV_GOTTLSDESCHI:
|
||
case R_FRV_GOTTLSDESCLO:
|
||
case R_FRV_GOTTLSOFF12:
|
||
case R_FRV_GOTTLSOFFHI:
|
||
case R_FRV_GOTTLSOFFLO:
|
||
case R_FRV_TLSOFF:
|
||
case R_FRV_GOT12:
|
||
case R_FRV_GOTHI:
|
||
case R_FRV_GOTLO:
|
||
case R_FRV_FUNCDESC_GOT12:
|
||
case R_FRV_FUNCDESC_GOTHI:
|
||
case R_FRV_FUNCDESC_GOTLO:
|
||
case R_FRV_GOTOFF12:
|
||
case R_FRV_GOTOFFHI:
|
||
case R_FRV_GOTOFFLO:
|
||
case R_FRV_FUNCDESC_GOTOFF12:
|
||
case R_FRV_FUNCDESC_GOTOFFHI:
|
||
case R_FRV_FUNCDESC_GOTOFFLO:
|
||
case R_FRV_FUNCDESC:
|
||
case R_FRV_FUNCDESC_VALUE:
|
||
case R_FRV_TLSMOFF12:
|
||
case R_FRV_TLSMOFFHI:
|
||
case R_FRV_TLSMOFFLO:
|
||
case R_FRV_TLSMOFF:
|
||
if (! IS_FDPIC (abfd))
|
||
goto bad_reloc;
|
||
/* Fall through. */
|
||
case R_FRV_GPREL12:
|
||
case R_FRV_GPRELU12:
|
||
case R_FRV_GPRELHI:
|
||
case R_FRV_GPRELLO:
|
||
case R_FRV_LABEL24:
|
||
case R_FRV_32:
|
||
if (! dynobj)
|
||
{
|
||
elf_hash_table (info)->dynobj = dynobj = abfd;
|
||
if (! _frv_create_got_section (abfd, info))
|
||
return FALSE;
|
||
}
|
||
if (! IS_FDPIC (abfd))
|
||
{
|
||
picrel = NULL;
|
||
break;
|
||
}
|
||
if (h != NULL)
|
||
{
|
||
if (h->dynindx == -1)
|
||
switch (ELF_ST_VISIBILITY (h->other))
|
||
{
|
||
case STV_INTERNAL:
|
||
case STV_HIDDEN:
|
||
break;
|
||
default:
|
||
bfd_elf_link_record_dynamic_symbol (info, h);
|
||
break;
|
||
}
|
||
picrel
|
||
= frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
|
||
abfd, h,
|
||
rel->r_addend, INSERT);
|
||
}
|
||
else
|
||
picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
|
||
(info), abfd, r_symndx,
|
||
rel->r_addend, INSERT);
|
||
if (! picrel)
|
||
return FALSE;
|
||
break;
|
||
|
||
default:
|
||
picrel = NULL;
|
||
break;
|
||
}
|
||
|
||
switch (ELF32_R_TYPE (rel->r_info))
|
||
{
|
||
case R_FRV_LABEL24:
|
||
if (IS_FDPIC (abfd))
|
||
picrel->call = 1;
|
||
break;
|
||
|
||
case R_FRV_FUNCDESC_VALUE:
|
||
picrel->relocsfdv++;
|
||
if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
|
||
picrel->relocs32--;
|
||
/* Fall through. */
|
||
|
||
case R_FRV_32:
|
||
if (! IS_FDPIC (abfd))
|
||
break;
|
||
|
||
picrel->sym = 1;
|
||
if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
|
||
picrel->relocs32++;
|
||
break;
|
||
|
||
case R_FRV_GOT12:
|
||
picrel->got12 = 1;
|
||
break;
|
||
|
||
case R_FRV_GOTHI:
|
||
case R_FRV_GOTLO:
|
||
picrel->gothilo = 1;
|
||
break;
|
||
|
||
case R_FRV_FUNCDESC_GOT12:
|
||
picrel->fdgot12 = 1;
|
||
break;
|
||
|
||
case R_FRV_FUNCDESC_GOTHI:
|
||
case R_FRV_FUNCDESC_GOTLO:
|
||
picrel->fdgothilo = 1;
|
||
break;
|
||
|
||
case R_FRV_GOTOFF12:
|
||
case R_FRV_GOTOFFHI:
|
||
case R_FRV_GOTOFFLO:
|
||
picrel->gotoff = 1;
|
||
break;
|
||
|
||
case R_FRV_FUNCDESC_GOTOFF12:
|
||
picrel->fdgoff12 = 1;
|
||
break;
|
||
|
||
case R_FRV_FUNCDESC_GOTOFFHI:
|
||
case R_FRV_FUNCDESC_GOTOFFLO:
|
||
picrel->fdgoffhilo = 1;
|
||
break;
|
||
|
||
case R_FRV_FUNCDESC:
|
||
picrel->fd = 1;
|
||
picrel->relocsfd++;
|
||
break;
|
||
|
||
case R_FRV_GETTLSOFF:
|
||
picrel->tlsplt = 1;
|
||
break;
|
||
|
||
case R_FRV_TLSDESC_VALUE:
|
||
picrel->relocstlsd++;
|
||
goto bad_reloc;
|
||
|
||
case R_FRV_GOTTLSDESC12:
|
||
picrel->tlsdesc12 = 1;
|
||
break;
|
||
|
||
case R_FRV_GOTTLSDESCHI:
|
||
case R_FRV_GOTTLSDESCLO:
|
||
picrel->tlsdeschilo = 1;
|
||
break;
|
||
|
||
case R_FRV_TLSMOFF12:
|
||
case R_FRV_TLSMOFFHI:
|
||
case R_FRV_TLSMOFFLO:
|
||
case R_FRV_TLSMOFF:
|
||
break;
|
||
|
||
case R_FRV_GOTTLSOFF12:
|
||
picrel->tlsoff12 = 1;
|
||
info->flags |= DF_STATIC_TLS;
|
||
break;
|
||
|
||
case R_FRV_GOTTLSOFFHI:
|
||
case R_FRV_GOTTLSOFFLO:
|
||
picrel->tlsoffhilo = 1;
|
||
info->flags |= DF_STATIC_TLS;
|
||
break;
|
||
|
||
case R_FRV_TLSOFF:
|
||
picrel->relocstlsoff++;
|
||
info->flags |= DF_STATIC_TLS;
|
||
goto bad_reloc;
|
||
|
||
/* This relocation describes the C++ object vtable hierarchy.
|
||
Reconstruct it for later use during GC. */
|
||
case R_FRV_GNU_VTINHERIT:
|
||
if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
||
return FALSE;
|
||
break;
|
||
|
||
/* This relocation describes which C++ vtable entries are actually
|
||
used. Record for later use during GC. */
|
||
case R_FRV_GNU_VTENTRY:
|
||
BFD_ASSERT (h != NULL);
|
||
if (h != NULL
|
||
&& !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
||
return FALSE;
|
||
break;
|
||
|
||
case R_FRV_LABEL16:
|
||
case R_FRV_LO16:
|
||
case R_FRV_HI16:
|
||
case R_FRV_GPREL12:
|
||
case R_FRV_GPRELU12:
|
||
case R_FRV_GPREL32:
|
||
case R_FRV_GPRELHI:
|
||
case R_FRV_GPRELLO:
|
||
case R_FRV_TLSDESC_RELAX:
|
||
case R_FRV_GETTLSOFF_RELAX:
|
||
case R_FRV_TLSOFF_RELAX:
|
||
break;
|
||
|
||
default:
|
||
bad_reloc:
|
||
/* xgettext:c-format */
|
||
_bfd_error_handler (_("%pB: unsupported relocation type %#x"),
|
||
abfd, (unsigned int) ELF32_R_TYPE (rel->r_info));
|
||
return FALSE;
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
|
||
/* Return the machine subcode from the ELF e_flags header. */
|
||
|
||
static int
|
||
elf32_frv_machine (bfd *abfd)
|
||
{
|
||
switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
|
||
{
|
||
default: break;
|
||
case EF_FRV_CPU_FR550: return bfd_mach_fr550;
|
||
case EF_FRV_CPU_FR500: return bfd_mach_fr500;
|
||
case EF_FRV_CPU_FR450: return bfd_mach_fr450;
|
||
case EF_FRV_CPU_FR405: return bfd_mach_fr400;
|
||
case EF_FRV_CPU_FR400: return bfd_mach_fr400;
|
||
case EF_FRV_CPU_FR300: return bfd_mach_fr300;
|
||
case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
|
||
case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
|
||
}
|
||
|
||
return bfd_mach_frv;
|
||
}
|
||
|
||
/* Set the right machine number for a FRV ELF file. */
|
||
|
||
static bfd_boolean
|
||
elf32_frv_object_p (bfd *abfd)
|
||
{
|
||
bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
|
||
return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
|
||
== (IS_FDPIC (abfd)));
|
||
}
|
||
|
||
/* Function to set the ELF flag bits. */
|
||
|
||
static bfd_boolean
|
||
frv_elf_set_private_flags (bfd *abfd, flagword flags)
|
||
{
|
||
elf_elfheader (abfd)->e_flags = flags;
|
||
elf_flags_init (abfd) = TRUE;
|
||
return TRUE;
|
||
}
|
||
|
||
/* Return true if the architecture described by elf header flag
|
||
EXTENSION is an extension of the architecture described by BASE. */
|
||
|
||
static bfd_boolean
|
||
frv_elf_arch_extension_p (flagword base, flagword extension)
|
||
{
|
||
if (base == extension)
|
||
return TRUE;
|
||
|
||
/* CPU_GENERIC code can be merged with code for a specific
|
||
architecture, in which case the result is marked as being
|
||
for the specific architecture. Everything is therefore
|
||
an extension of CPU_GENERIC. */
|
||
if (base == EF_FRV_CPU_GENERIC)
|
||
return TRUE;
|
||
|
||
if (extension == EF_FRV_CPU_FR450)
|
||
if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
|
||
return TRUE;
|
||
|
||
if (extension == EF_FRV_CPU_FR405)
|
||
if (base == EF_FRV_CPU_FR400)
|
||
return TRUE;
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
/* Merge backend specific data from an object file to the output
|
||
object file when linking. */
|
||
|
||
static bfd_boolean
|
||
frv_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
|
||
{
|
||
bfd *obfd = info->output_bfd;
|
||
flagword old_flags, old_partial;
|
||
flagword new_flags, new_partial;
|
||
bfd_boolean error = FALSE;
|
||
char new_opt[80];
|
||
char old_opt[80];
|
||
|
||
new_opt[0] = old_opt[0] = '\0';
|
||
new_flags = elf_elfheader (ibfd)->e_flags;
|
||
old_flags = elf_elfheader (obfd)->e_flags;
|
||
|
||
if (new_flags & EF_FRV_FDPIC)
|
||
new_flags &= ~EF_FRV_PIC;
|
||
|
||
#ifdef DEBUG
|
||
_bfd_error_handler
|
||
("old_flags = 0x%.8x, new_flags = 0x%.8x, init = %s, filename = %s",
|
||
old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
|
||
bfd_get_filename (ibfd));
|
||
#endif
|
||
|
||
if (!elf_flags_init (obfd)) /* First call, no flags set. */
|
||
{
|
||
elf_flags_init (obfd) = TRUE;
|
||
old_flags = new_flags;
|
||
}
|
||
|
||
else if (new_flags == old_flags) /* Compatible flags are ok. */
|
||
;
|
||
|
||
else /* Possibly incompatible flags. */
|
||
{
|
||
/* Warn if different # of gprs are used. Note, 0 means nothing is
|
||
said about the size of gprs. */
|
||
new_partial = (new_flags & EF_FRV_GPR_MASK);
|
||
old_partial = (old_flags & EF_FRV_GPR_MASK);
|
||
if (new_partial == old_partial)
|
||
;
|
||
|
||
else if (new_partial == 0)
|
||
;
|
||
|
||
else if (old_partial == 0)
|
||
old_flags |= new_partial;
|
||
|
||
else
|
||
{
|
||
switch (new_partial)
|
||
{
|
||
default: strcat (new_opt, " -mgpr-??"); break;
|
||
case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
|
||
case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
|
||
}
|
||
|
||
switch (old_partial)
|
||
{
|
||
default: strcat (old_opt, " -mgpr-??"); break;
|
||
case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
|
||
case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
|
||
}
|
||
}
|
||
|
||
/* Warn if different # of fprs are used. Note, 0 means nothing is
|
||
said about the size of fprs. */
|
||
new_partial = (new_flags & EF_FRV_FPR_MASK);
|
||
old_partial = (old_flags & EF_FRV_FPR_MASK);
|
||
if (new_partial == old_partial)
|
||
;
|
||
|
||
else if (new_partial == 0)
|
||
;
|
||
|
||
else if (old_partial == 0)
|
||
old_flags |= new_partial;
|
||
|
||
else
|
||
{
|
||
switch (new_partial)
|
||
{
|
||
default: strcat (new_opt, " -mfpr-?"); break;
|
||
case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
|
||
case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
|
||
case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
|
||
}
|
||
|
||
switch (old_partial)
|
||
{
|
||
default: strcat (old_opt, " -mfpr-?"); break;
|
||
case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
|
||
case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
|
||
case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
|
||
}
|
||
}
|
||
|
||
/* Warn if different dword support was used. Note, 0 means nothing is
|
||
said about the dword support. */
|
||
new_partial = (new_flags & EF_FRV_DWORD_MASK);
|
||
old_partial = (old_flags & EF_FRV_DWORD_MASK);
|
||
if (new_partial == old_partial)
|
||
;
|
||
|
||
else if (new_partial == 0)
|
||
;
|
||
|
||
else if (old_partial == 0)
|
||
old_flags |= new_partial;
|
||
|
||
else
|
||
{
|
||
switch (new_partial)
|
||
{
|
||
default: strcat (new_opt, " -mdword-?"); break;
|
||
case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
|
||
case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
|
||
}
|
||
|
||
switch (old_partial)
|
||
{
|
||
default: strcat (old_opt, " -mdword-?"); break;
|
||
case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
|
||
case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
|
||
}
|
||
}
|
||
|
||
/* Or in flags that accumulate (ie, if one module uses it, mark that the
|
||
feature is used. */
|
||
old_flags |= new_flags & (EF_FRV_DOUBLE
|
||
| EF_FRV_MEDIA
|
||
| EF_FRV_MULADD
|
||
| EF_FRV_NON_PIC_RELOCS);
|
||
|
||
/* If any module was compiled without -G0, clear the G0 bit. */
|
||
old_flags = ((old_flags & ~ EF_FRV_G0)
|
||
| (old_flags & new_flags & EF_FRV_G0));
|
||
|
||
/* If any module was compiled without -mnopack, clear the mnopack bit. */
|
||
old_flags = ((old_flags & ~ EF_FRV_NOPACK)
|
||
| (old_flags & new_flags & EF_FRV_NOPACK));
|
||
|
||
/* We don't have to do anything if the pic flags are the same, or the new
|
||
module(s) were compiled with -mlibrary-pic. */
|
||
new_partial = (new_flags & EF_FRV_PIC_FLAGS);
|
||
old_partial = (old_flags & EF_FRV_PIC_FLAGS);
|
||
if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
|
||
;
|
||
|
||
/* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
|
||
flags if any from the new module. */
|
||
else if ((old_partial & EF_FRV_LIBPIC) != 0)
|
||
old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
|
||
|
||
/* If we have mixtures of -fpic and -fPIC, or in both bits. */
|
||
else if (new_partial != 0 && old_partial != 0)
|
||
old_flags |= new_partial;
|
||
|
||
/* One module was compiled for pic and the other was not, see if we have
|
||
had any relocations that are not pic-safe. */
|
||
else
|
||
{
|
||
if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
|
||
old_flags |= new_partial;
|
||
else
|
||
{
|
||
old_flags &= ~ EF_FRV_PIC_FLAGS;
|
||
#ifndef FRV_NO_PIC_ERROR
|
||
error = TRUE;
|
||
_bfd_error_handler
|
||
/* xgettext:c-format */
|
||
(_("%pB: compiled with %s and linked with modules"
|
||
" that use non-pic relocations"),
|
||
ibfd, (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
|
||
#endif
|
||
}
|
||
}
|
||
|
||
/* Warn if different cpu is used (allow a specific cpu to override
|
||
the generic cpu). */
|
||
new_partial = (new_flags & EF_FRV_CPU_MASK);
|
||
old_partial = (old_flags & EF_FRV_CPU_MASK);
|
||
if (frv_elf_arch_extension_p (new_partial, old_partial))
|
||
;
|
||
|
||
else if (frv_elf_arch_extension_p (old_partial, new_partial))
|
||
old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
|
||
|
||
else
|
||
{
|
||
switch (new_partial)
|
||
{
|
||
default: strcat (new_opt, " -mcpu=?"); break;
|
||
case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
|
||
case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
|
||
case EF_FRV_CPU_FR550: strcat (new_opt, " -mcpu=fr550"); break;
|
||
case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
|
||
case EF_FRV_CPU_FR450: strcat (new_opt, " -mcpu=fr450"); break;
|
||
case EF_FRV_CPU_FR405: strcat (new_opt, " -mcpu=fr405"); break;
|
||
case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
|
||
case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
|
||
case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
|
||
}
|
||
|
||
switch (old_partial)
|
||
{
|
||
default: strcat (old_opt, " -mcpu=?"); break;
|
||
case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
|
||
case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
|
||
case EF_FRV_CPU_FR550: strcat (old_opt, " -mcpu=fr550"); break;
|
||
case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
|
||
case EF_FRV_CPU_FR450: strcat (old_opt, " -mcpu=fr450"); break;
|
||
case EF_FRV_CPU_FR405: strcat (old_opt, " -mcpu=fr405"); break;
|
||
case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
|
||
case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
|
||
case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
|
||
}
|
||
}
|
||
|
||
/* Print out any mismatches from above. */
|
||
if (new_opt[0])
|
||
{
|
||
error = TRUE;
|
||
_bfd_error_handler
|
||
/* xgettext:c-format */
|
||
(_("%pB: compiled with %s and linked with modules compiled with %s"),
|
||
ibfd, new_opt, old_opt);
|
||
}
|
||
|
||
/* Warn about any other mismatches */
|
||
new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
|
||
old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
|
||
if (new_partial != old_partial)
|
||
{
|
||
old_flags |= new_partial;
|
||
error = TRUE;
|
||
_bfd_error_handler
|
||
/* xgettext:c-format */
|
||
(_("%pB: uses different unknown e_flags (%#x) fields"
|
||
" than previous modules (%#x)"),
|
||
ibfd, new_partial, old_partial);
|
||
}
|
||
}
|
||
|
||
/* If the cpu is -mcpu=simple, then set the -mnopack bit. */
|
||
if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
|
||
old_flags |= EF_FRV_NOPACK;
|
||
|
||
/* Update the old flags now with changes made above. */
|
||
old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
|
||
elf_elfheader (obfd)->e_flags = old_flags;
|
||
if (old_partial != (old_flags & EF_FRV_CPU_MASK))
|
||
bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
|
||
|
||
if (((new_flags & EF_FRV_FDPIC) == 0)
|
||
!= (! IS_FDPIC (ibfd)))
|
||
{
|
||
error = TRUE;
|
||
if (IS_FDPIC (obfd))
|
||
_bfd_error_handler
|
||
(_("%pB: cannot link non-fdpic object file into fdpic executable"),
|
||
ibfd);
|
||
else
|
||
_bfd_error_handler
|
||
(_("%pB: cannot link fdpic object file into non-fdpic executable"),
|
||
ibfd);
|
||
}
|
||
|
||
if (error)
|
||
bfd_set_error (bfd_error_bad_value);
|
||
|
||
return !error;
|
||
}
|
||
|
||
|
||
static bfd_boolean
|
||
frv_elf_print_private_bfd_data (bfd *abfd, void * ptr)
|
||
{
|
||
FILE *file = (FILE *) ptr;
|
||
flagword flags;
|
||
|
||
BFD_ASSERT (abfd != NULL && ptr != NULL);
|
||
|
||
/* Print normal ELF private data. */
|
||
_bfd_elf_print_private_bfd_data (abfd, ptr);
|
||
|
||
flags = elf_elfheader (abfd)->e_flags;
|
||
fprintf (file, _("private flags = 0x%lx:"), (unsigned long) flags);
|
||
|
||
switch (flags & EF_FRV_CPU_MASK)
|
||
{
|
||
default: break;
|
||
case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
|
||
case EF_FRV_CPU_FR550: fprintf (file, " -mcpu=fr550"); break;
|
||
case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
|
||
case EF_FRV_CPU_FR450: fprintf (file, " -mcpu=fr450"); break;
|
||
case EF_FRV_CPU_FR405: fprintf (file, " -mcpu=fr405"); break;
|
||
case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
|
||
case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
|
||
case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
|
||
}
|
||
|
||
switch (flags & EF_FRV_GPR_MASK)
|
||
{
|
||
default: break;
|
||
case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
|
||
case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
|
||
}
|
||
|
||
switch (flags & EF_FRV_FPR_MASK)
|
||
{
|
||
default: break;
|
||
case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
|
||
case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
|
||
case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
|
||
}
|
||
|
||
switch (flags & EF_FRV_DWORD_MASK)
|
||
{
|
||
default: break;
|
||
case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
|
||
case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
|
||
}
|
||
|
||
if (flags & EF_FRV_DOUBLE)
|
||
fprintf (file, " -mdouble");
|
||
|
||
if (flags & EF_FRV_MEDIA)
|
||
fprintf (file, " -mmedia");
|
||
|
||
if (flags & EF_FRV_MULADD)
|
||
fprintf (file, " -mmuladd");
|
||
|
||
if (flags & EF_FRV_PIC)
|
||
fprintf (file, " -fpic");
|
||
|
||
if (flags & EF_FRV_BIGPIC)
|
||
fprintf (file, " -fPIC");
|
||
|
||
if (flags & EF_FRV_LIBPIC)
|
||
fprintf (file, " -mlibrary-pic");
|
||
|
||
if (flags & EF_FRV_FDPIC)
|
||
fprintf (file, " -mfdpic");
|
||
|
||
if (flags & EF_FRV_NON_PIC_RELOCS)
|
||
fprintf (file, " non-pic relocations");
|
||
|
||
if (flags & EF_FRV_G0)
|
||
fprintf (file, " -G0");
|
||
|
||
fputc ('\n', file);
|
||
return TRUE;
|
||
}
|
||
|
||
|
||
/* Support for core dump NOTE sections. */
|
||
|
||
static bfd_boolean
|
||
elf32_frv_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
|
||
{
|
||
int offset;
|
||
unsigned int raw_size;
|
||
|
||
switch (note->descsz)
|
||
{
|
||
default:
|
||
return FALSE;
|
||
|
||
/* The Linux/FRV elf_prstatus struct is 268 bytes long. The other
|
||
hardcoded offsets and sizes listed below (and contained within
|
||
this lexical block) refer to fields in the target's elf_prstatus
|
||
struct. */
|
||
case 268:
|
||
/* `pr_cursig' is at offset 12. */
|
||
elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
|
||
|
||
/* `pr_pid' is at offset 24. */
|
||
elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
|
||
|
||
/* `pr_reg' is at offset 72. */
|
||
offset = 72;
|
||
|
||
/* Most grok_prstatus implementations set `raw_size' to the size
|
||
of the pr_reg field. For Linux/FRV, we set `raw_size' to be
|
||
the size of `pr_reg' plus the size of `pr_exec_fdpic_loadmap'
|
||
and `pr_interp_fdpic_loadmap', both of which (by design)
|
||
immediately follow `pr_reg'. This will allow these fields to
|
||
be viewed by GDB as registers.
|
||
|
||
`pr_reg' is 184 bytes long. `pr_exec_fdpic_loadmap' and
|
||
`pr_interp_fdpic_loadmap' are 4 bytes each. */
|
||
raw_size = 184 + 4 + 4;
|
||
|
||
break;
|
||
}
|
||
|
||
/* Make a ".reg/999" section. */
|
||
return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size,
|
||
note->descpos + offset);
|
||
}
|
||
|
||
static bfd_boolean
|
||
elf32_frv_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
|
||
{
|
||
switch (note->descsz)
|
||
{
|
||
default:
|
||
return FALSE;
|
||
|
||
/* The Linux/FRV elf_prpsinfo struct is 124 bytes long. */
|
||
case 124:
|
||
|
||
/* `pr_fname' is found at offset 28 and is 16 bytes long. */
|
||
elf_tdata (abfd)->core->program
|
||
= _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
|
||
|
||
/* `pr_psargs' is found at offset 44 and is 80 bytes long. */
|
||
elf_tdata (abfd)->core->command
|
||
= _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
|
||
}
|
||
|
||
/* Note that for some reason, a spurious space is tacked
|
||
onto the end of the args in some (at least one anyway)
|
||
implementations, so strip it off if it exists. */
|
||
|
||
{
|
||
char *command = elf_tdata (abfd)->core->command;
|
||
int n = strlen (command);
|
||
|
||
if (0 < n && command[n - 1] == ' ')
|
||
command[n - 1] = '\0';
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
#define ELF_ARCH bfd_arch_frv
|
||
#define ELF_MACHINE_CODE EM_CYGNUS_FRV
|
||
#define ELF_MAXPAGESIZE 0x1000
|
||
|
||
#define TARGET_BIG_SYM frv_elf32_vec
|
||
#define TARGET_BIG_NAME "elf32-frv"
|
||
|
||
#define elf_info_to_howto frv_info_to_howto_rela
|
||
#define elf_backend_relocate_section elf32_frv_relocate_section
|
||
#define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
|
||
#define elf_backend_check_relocs elf32_frv_check_relocs
|
||
#define elf_backend_object_p elf32_frv_object_p
|
||
#define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
|
||
|
||
#define elf_backend_stack_align 8
|
||
#define elf_backend_can_gc_sections 1
|
||
#define elf_backend_rela_normal 1
|
||
|
||
#define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
|
||
#define bfd_elf32_bfd_reloc_name_lookup frv_reloc_name_lookup
|
||
#define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
|
||
#define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
|
||
#define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
|
||
|
||
#define elf_backend_want_got_sym 1
|
||
#define elf_backend_got_header_size 0
|
||
#define elf_backend_want_got_plt 0
|
||
#define elf_backend_plt_readonly 1
|
||
#define elf_backend_want_plt_sym 0
|
||
#define elf_backend_plt_header_size 0
|
||
|
||
#define elf_backend_finish_dynamic_sections \
|
||
elf32_frv_finish_dynamic_sections
|
||
|
||
#define elf_backend_grok_prstatus elf32_frv_grok_prstatus
|
||
#define elf_backend_grok_psinfo elf32_frv_grok_psinfo
|
||
|
||
#define elf_backend_linux_prpsinfo32_ugid16 TRUE
|
||
|
||
#include "elf32-target.h"
|
||
|
||
#undef ELF_TARGET_ID
|
||
#define ELF_TARGET_ID FRV_ELF_DATA
|
||
#undef ELF_MAXPAGESIZE
|
||
#define ELF_MAXPAGESIZE 0x4000
|
||
|
||
#undef TARGET_BIG_SYM
|
||
#define TARGET_BIG_SYM frv_elf32_fdpic_vec
|
||
#undef TARGET_BIG_NAME
|
||
#define TARGET_BIG_NAME "elf32-frvfdpic"
|
||
#undef elf32_bed
|
||
#define elf32_bed elf32_frvfdpic_bed
|
||
|
||
#undef elf_info_to_howto_rel
|
||
#define elf_info_to_howto_rel frvfdpic_info_to_howto_rel
|
||
|
||
#undef bfd_elf32_bfd_link_hash_table_create
|
||
#define bfd_elf32_bfd_link_hash_table_create \
|
||
frvfdpic_elf_link_hash_table_create
|
||
#undef elf_backend_always_size_sections
|
||
#define elf_backend_always_size_sections \
|
||
elf32_frvfdpic_always_size_sections
|
||
|
||
#undef elf_backend_create_dynamic_sections
|
||
#define elf_backend_create_dynamic_sections \
|
||
elf32_frvfdpic_create_dynamic_sections
|
||
#undef elf_backend_adjust_dynamic_symbol
|
||
#define elf_backend_adjust_dynamic_symbol \
|
||
elf32_frvfdpic_adjust_dynamic_symbol
|
||
#undef elf_backend_size_dynamic_sections
|
||
#define elf_backend_size_dynamic_sections \
|
||
elf32_frvfdpic_size_dynamic_sections
|
||
#undef bfd_elf32_bfd_relax_section
|
||
#define bfd_elf32_bfd_relax_section \
|
||
elf32_frvfdpic_relax_section
|
||
#undef elf_backend_finish_dynamic_symbol
|
||
#define elf_backend_finish_dynamic_symbol \
|
||
elf32_frvfdpic_finish_dynamic_symbol
|
||
#undef elf_backend_finish_dynamic_sections
|
||
#define elf_backend_finish_dynamic_sections \
|
||
elf32_frvfdpic_finish_dynamic_sections
|
||
|
||
#undef elf_backend_discard_info
|
||
#define elf_backend_discard_info \
|
||
frvfdpic_elf_discard_info
|
||
#undef elf_backend_can_make_relative_eh_frame
|
||
#define elf_backend_can_make_relative_eh_frame \
|
||
frvfdpic_elf_use_relative_eh_frame
|
||
#undef elf_backend_can_make_lsda_relative_eh_frame
|
||
#define elf_backend_can_make_lsda_relative_eh_frame \
|
||
frvfdpic_elf_use_relative_eh_frame
|
||
#undef elf_backend_encode_eh_address
|
||
#define elf_backend_encode_eh_address \
|
||
frvfdpic_elf_encode_eh_address
|
||
|
||
#undef elf_backend_may_use_rel_p
|
||
#define elf_backend_may_use_rel_p 1
|
||
#undef elf_backend_may_use_rela_p
|
||
#define elf_backend_may_use_rela_p 1
|
||
/* We use REL for dynamic relocations only. */
|
||
#undef elf_backend_default_use_rela_p
|
||
#define elf_backend_default_use_rela_p 1
|
||
|
||
#undef elf_backend_omit_section_dynsym
|
||
#define elf_backend_omit_section_dynsym _frvfdpic_link_omit_section_dynsym
|
||
|
||
#include "elf32-target.h"
|