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|
- /* FRV-specific support for 32-bit ELF.
- Copyright (C) 2002-2022 Free Software Foundation, Inc.
- This file is part of BFD, the Binary File Descriptor library.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
- MA 02110-1301, USA. */
- #include "sysdep.h"
- #include "bfd.h"
- #include "libbfd.h"
- #include "elf-bfd.h"
- #include "elf/frv.h"
- #include "dwarf2.h"
- #include "hashtab.h"
- #include "libiberty.h"
- /* Forward declarations. */
- static reloc_howto_type elf32_frv_howto_table [] =
- {
- /* This reloc does nothing. */
- HOWTO (R_FRV_NONE, /* type */
- 0, /* rightshift */
- 3, /* 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_NONE", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- false), /* pcrel_offset */
- /* A 32 bit absolute relocation. */
- 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 */
- false, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
- /* A 16 bit pc-relative relocation. */
- HOWTO (R_FRV_LABEL16, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- true, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_signed, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_FRV_LABEL16", /* name */
- false, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
- true), /* pcrel_offset */
- /* A 24-bit pc-relative relocation. */
- HOWTO (R_FRV_LABEL24, /* 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_LABEL24", /* name */
- false, /* partial_inplace */
- 0x7e03ffff, /* src_mask */
- 0x7e03ffff, /* dst_mask */
- true), /* pcrel_offset */
- HOWTO (R_FRV_LO16, /* 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_LO16", /* name */
- false, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_FRV_HI16, /* 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_HI16", /* name */
- false, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_FRV_GPREL12, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 12, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_FRV_GPREL12", /* name */
- false, /* partial_inplace */
- 0xfff, /* src_mask */
- 0xfff, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_FRV_GPRELU12, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 12, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_FRV_GPRELU12", /* name */
- false, /* partial_inplace */
- 0xfff, /* src_mask */
- 0x3f03f, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_FRV_GPREL32, /* 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_GPREL32", /* name */
- false, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_FRV_GPRELHI, /* 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_GPRELHI", /* name */
- false, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_FRV_GPRELLO, /* 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_GPRELLO", /* 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_GOT12, /* 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_GOT12", /* 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_GOTHI, /* 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_GOTHI", /* 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_GOTLO, /* 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_GOTLO", /* name */
- false, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
- false), /* pcrel_offset */
- /* The 32-bit address of the canonical descriptor of a function. */
- 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 */
- 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_GOT12, /* 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_GOT12", /* 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_GOTHI, /* 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_GOTHI", /* 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_GOTLO, /* 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_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 */
- 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 */
- 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) \
- ((is_elf_hash_table ((p)->hash) \
- && elf_hash_table_id (elf_hash_table (p)) == 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;
- size_t 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 bool
- _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 bool
- _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 bool
- 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 bool
- 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 int
- 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 = NULL;
- 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 (sec);
- }
- else
- {
- bool warned, ignored;
- bool 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 ((input_section->flags & SEC_ALLOC) == 0)
- break;
- 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_section_flags (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_section_flags (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_section_flags (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_section_flags (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 (bfd_get_filename (input_bfd)) == 6
- && filename_cmp (bfd_get_filename (input_bfd), "crt0.o") == 0)
- || (strlen (bfd_get_filename (input_bfd)) > 6
- && filename_cmp (bfd_get_filename (input_bfd)
- + strlen (bfd_get_filename (input_bfd)) - 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 bool
- 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_SMALL_DATA
- | 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 bool
- _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 bool
- _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 (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 (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 (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 (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 (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 bool
- 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 (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,
- bool 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,
- bool 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,
- bool relaxing)
- {
- bool 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 bool
- _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 bool
- 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;
- return _bfd_elf_add_dynamic_tags (output_bfd, info, true);
- }
- static bool
- 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 bool
- _frvfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
- struct bfd_link_info *info,
- bool *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 bool
- frvfdpic_elf_discard_info (bfd *ibfd,
- struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
- struct bfd_link_info *info)
- {
- bool 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 bool
- elf32_frvfdpic_relax_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
- struct bfd_link_info *info, bool *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 bool
- 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 bool
- 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 bool
- 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 bool
- 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 bool
- 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 bool
- 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_section_flags (sec) & SEC_ALLOC)
- picrel->relocs32--;
- /* Fall through. */
- case R_FRV_32:
- if (! IS_FDPIC (abfd))
- break;
- picrel->sym = 1;
- if (bfd_section_flags (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:
- if (!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 bool
- 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 bool
- 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 bool
- 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 bool
- 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;
- bool error = false;
- char new_opt[80];
- char old_opt[80];
- /* FIXME: What should be checked when linking shared libraries? */
- if ((ibfd->flags & DYNAMIC) != 0)
- return true;
- 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 bool
- 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 bool
- 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 bool
- 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"
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