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4065 lines
122 KiB
C
4065 lines
122 KiB
C
/* TILEPro-specific support for 32-bit ELF.
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Copyright (C) 2011-2017 Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include "sysdep.h"
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#include "bfd.h"
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#include "libbfd.h"
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#include "elf-bfd.h"
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#include "elf/tilepro.h"
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#include "opcode/tilepro.h"
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#include "libiberty.h"
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#include "elf32-tilepro.h"
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#define TILEPRO_BYTES_PER_WORD 4
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static reloc_howto_type tilepro_elf_howto_table [] =
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{
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/* This reloc does nothing. */
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HOWTO (R_TILEPRO_NONE, /* type */
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0, /* rightshift */
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3, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_NONE", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* A 32 bit absolute relocation. */
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HOWTO (R_TILEPRO_32, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_32", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0xffffffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* A 16 bit absolute relocation. */
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HOWTO (R_TILEPRO_16, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_16", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0xffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* An 8 bit absolute relocation. */
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HOWTO (R_TILEPRO_8, /* type */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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8, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_unsigned, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_8", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0xff, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* A 32 bit pc-relative relocation. */
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HOWTO (R_TILEPRO_32_PCREL,/* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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TRUE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_32_PCREL", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0xffffffff, /* dst_mask */
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TRUE), /* pcrel_offset */
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/* A 16 bit pc-relative relocation. */
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HOWTO (R_TILEPRO_16_PCREL,/* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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TRUE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_signed, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_16_PCREL", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0xffff, /* dst_mask */
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TRUE), /* pcrel_offset */
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/* An 8 bit pc-relative relocation. */
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HOWTO (R_TILEPRO_8_PCREL, /* type */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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8, /* bitsize */
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TRUE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_signed, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_8_PCREL",/* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0xff, /* dst_mask */
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TRUE), /* pcrel_offset */
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/* A 16 bit relocation without overflow. */
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HOWTO (R_TILEPRO_LO16, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_LO16", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0xffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* The high order 16 bits of an address. */
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HOWTO (R_TILEPRO_HI16, /* type */
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16, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_HI16", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0xffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* The high order 16 bits of an address, plus 1 if the contents of
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the low 16 bits, treated as a signed number, is negative. */
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HOWTO (R_TILEPRO_HA16, /* type */
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16, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_HA16", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0xffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (R_TILEPRO_COPY, /* type */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_COPY", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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TRUE), /* pcrel_offset */
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HOWTO (R_TILEPRO_GLOB_DAT, /* type */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_GLOB_DAT", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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TRUE), /* pcrel_offset */
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HOWTO (R_TILEPRO_JMP_SLOT, /* type */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_JMP_SLOT", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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TRUE), /* pcrel_offset */
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HOWTO (R_TILEPRO_RELATIVE, /* type */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_RELATIVE", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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TRUE), /* pcrel_offset */
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HOWTO (R_TILEPRO_BROFF_X1, /* type */
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TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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17, /* bitsize */
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TRUE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_signed, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_BROFF_X1", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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-1, /* dst_mask */
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TRUE), /* pcrel_offset */
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HOWTO (R_TILEPRO_JOFFLONG_X1, /* type */
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TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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29, /* bitsize */
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TRUE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_signed,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_JOFFLONG_X1", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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-1, /* dst_mask */
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TRUE), /* pcrel_offset */
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HOWTO (R_TILEPRO_JOFFLONG_X1_PLT, /* type */
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TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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29, /* bitsize */
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TRUE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_signed,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_JOFFLONG_X1_PLT", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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-1, /* dst_mask */
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TRUE), /* pcrel_offset */
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#define TILEPRO_IMM_HOWTO(name, size, bitsize) \
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HOWTO (name, 0, size, bitsize, FALSE, 0, \
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complain_overflow_signed, bfd_elf_generic_reloc, \
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#name, FALSE, 0, -1, FALSE)
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#define TILEPRO_UIMM_HOWTO(name, size, bitsize) \
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HOWTO (name, 0, size, bitsize, FALSE, 0, \
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complain_overflow_unsigned, bfd_elf_generic_reloc, \
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#name, FALSE, 0, -1, FALSE)
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TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0, 0, 8),
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TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0, 0, 8),
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TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1, 0, 8),
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TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1, 0, 8),
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TILEPRO_UIMM_HOWTO(R_TILEPRO_MT_IMM15_X1, 1, 15),
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TILEPRO_UIMM_HOWTO(R_TILEPRO_MF_IMM15_X1, 1, 15),
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TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0, 1, 16),
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TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1, 1, 16),
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#define TILEPRO_IMM16_HOWTO(name, rshift) \
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HOWTO (name, rshift, 1, 16, FALSE, 0, \
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complain_overflow_dont, bfd_elf_generic_reloc, \
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#name, FALSE, 0, 0xffff, FALSE)
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TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_LO, 0),
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TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_LO, 0),
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TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HI, 16),
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TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HI, 16),
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TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HA, 16),
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TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HA, 16),
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/* PC-relative offsets. */
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HOWTO (R_TILEPRO_IMM16_X0_PCREL, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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TRUE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_signed, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_IMM16_X0_PCREL",/* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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-1, /* dst_mask */
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TRUE), /* pcrel_offset */
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HOWTO (R_TILEPRO_IMM16_X1_PCREL, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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TRUE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_signed, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEPRO_IMM16_X1_PCREL",/* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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-1, /* dst_mask */
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TRUE), /* pcrel_offset */
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#define TILEPRO_IMM16_HOWTO_PCREL(name, rshift) \
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HOWTO (name, rshift, 1, 16, TRUE, 0, \
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complain_overflow_dont, bfd_elf_generic_reloc, \
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#name, FALSE, 0, 0xffff, TRUE)
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TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_LO_PCREL, 0),
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TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_LO_PCREL, 0),
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TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HI_PCREL, 16),
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TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HI_PCREL, 16),
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TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HA_PCREL, 16),
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TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HA_PCREL, 16),
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/* Byte offset into GOT for a particular symbol. */
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TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0_GOT, 1, 16),
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TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1_GOT, 1, 16),
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TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_LO, 0),
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TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_LO, 0),
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TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HI, 16),
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TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HI, 16),
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TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HA, 16),
|
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TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HA, 16),
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TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X0, 0, 5),
|
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TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X0, 0, 5),
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TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X1, 0, 5),
|
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TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X1, 0, 5),
|
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|
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TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X0, 0, 5),
|
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TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X1, 0, 5),
|
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TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y0, 0, 5),
|
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TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y1, 0, 5),
|
||
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TILEPRO_IMM_HOWTO(R_TILEPRO_DEST_IMM8_X1, 0, 8),
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|
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/* These relocs are currently not defined. */
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EMPTY_HOWTO (56),
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EMPTY_HOWTO (57),
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EMPTY_HOWTO (58),
|
||
EMPTY_HOWTO (59),
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||
|
||
HOWTO (R_TILEPRO_TLS_GD_CALL, /* type */
|
||
TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
29, /* bitsize */
|
||
TRUE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed,/* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_TILEPRO_TLS_GD_CALL", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
-1, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
|
||
TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0_TLS_GD_ADD, 0, 8),
|
||
TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1_TLS_GD_ADD, 0, 8),
|
||
TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0_TLS_GD_ADD, 0, 8),
|
||
TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1_TLS_GD_ADD, 0, 8),
|
||
TILEPRO_IMM_HOWTO(R_TILEPRO_TLS_IE_LOAD, 0, 8),
|
||
|
||
/* Offsets into the GOT of TLS Descriptors. */
|
||
|
||
HOWTO (R_TILEPRO_IMM16_X0_TLS_GD,/* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_TILEPRO_IMM16_X0_TLS_GD",/* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
HOWTO (R_TILEPRO_IMM16_X1_TLS_GD,/* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_TILEPRO_IMM16_X1_TLS_GD",/* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_LO, 0),
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_LO, 0),
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HI, 16),
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HI, 16),
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HA, 16),
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HA, 16),
|
||
|
||
/* Offsets into the GOT of TLS Descriptors. */
|
||
|
||
HOWTO (R_TILEPRO_IMM16_X0_TLS_IE,/* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_TILEPRO_IMM16_X0_TLS_IE",/* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
-1, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
|
||
HOWTO (R_TILEPRO_IMM16_X1_TLS_IE,/* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_TILEPRO_IMM16_X1_TLS_IE",/* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
-1, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_LO, 0),
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_LO, 0),
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HI, 16),
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HI, 16),
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HA, 16),
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HA, 16),
|
||
|
||
/* These are common with the Solaris TLS implementation. */
|
||
HOWTO(R_TILEPRO_TLS_DTPMOD32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
|
||
bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPMOD32",
|
||
FALSE, 0, 0, TRUE),
|
||
HOWTO(R_TILEPRO_TLS_DTPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
|
||
bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPOFF32",
|
||
FALSE, 0, 0xFFFFFFFF, TRUE),
|
||
HOWTO(R_TILEPRO_TLS_TPOFF32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
|
||
bfd_elf_generic_reloc, "R_TILEPRO_TLS_TPOFF32",
|
||
FALSE, 0, 0, TRUE),
|
||
|
||
HOWTO (R_TILEPRO_IMM16_X0_TLS_LE,/* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_TILEPRO_IMM16_X0_TLS_LE",/* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
-1, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
|
||
HOWTO (R_TILEPRO_IMM16_X1_TLS_LE,/* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_TILEPRO_IMM16_X1_TLS_LE",/* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
-1, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_LO, 0),
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_LO, 0),
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HI, 16),
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HI, 16),
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HA, 16),
|
||
TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HA, 16),
|
||
};
|
||
|
||
static reloc_howto_type tilepro_elf_howto_table2 [] =
|
||
{
|
||
/* GNU extension to record C++ vtable hierarchy */
|
||
HOWTO (R_TILEPRO_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_TILEPRO_GNU_VTINHERIT", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
/* GNU extension to record C++ vtable member usage */
|
||
HOWTO (R_TILEPRO_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_TILEPRO_GNU_VTENTRY", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
};
|
||
|
||
/* Map BFD reloc types to TILEPRO ELF reloc types. */
|
||
|
||
typedef struct tilepro_reloc_map
|
||
{
|
||
bfd_reloc_code_real_type bfd_reloc_val;
|
||
unsigned int tilepro_reloc_val;
|
||
reloc_howto_type * table;
|
||
} reloc_map;
|
||
|
||
static const reloc_map tilepro_reloc_map [] =
|
||
{
|
||
#define TH_REMAP(bfd, tilepro) \
|
||
{ bfd, tilepro, tilepro_elf_howto_table },
|
||
|
||
/* Standard relocations. */
|
||
TH_REMAP (BFD_RELOC_NONE, R_TILEPRO_NONE)
|
||
TH_REMAP (BFD_RELOC_32, R_TILEPRO_32)
|
||
TH_REMAP (BFD_RELOC_16, R_TILEPRO_16)
|
||
TH_REMAP (BFD_RELOC_8, R_TILEPRO_8)
|
||
TH_REMAP (BFD_RELOC_32_PCREL, R_TILEPRO_32_PCREL)
|
||
TH_REMAP (BFD_RELOC_16_PCREL, R_TILEPRO_16_PCREL)
|
||
TH_REMAP (BFD_RELOC_8_PCREL, R_TILEPRO_8_PCREL)
|
||
TH_REMAP (BFD_RELOC_LO16, R_TILEPRO_LO16)
|
||
TH_REMAP (BFD_RELOC_HI16, R_TILEPRO_HI16)
|
||
TH_REMAP (BFD_RELOC_HI16_S, R_TILEPRO_HA16)
|
||
|
||
/* Custom relocations. */
|
||
TH_REMAP (BFD_RELOC_TILEPRO_COPY, R_TILEPRO_COPY)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_GLOB_DAT, R_TILEPRO_GLOB_DAT)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_JMP_SLOT, R_TILEPRO_JMP_SLOT)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_RELATIVE, R_TILEPRO_RELATIVE)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_BROFF_X1, R_TILEPRO_BROFF_X1)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1, R_TILEPRO_JOFFLONG_X1)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1_PLT, R_TILEPRO_JOFFLONG_X1_PLT)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0, R_TILEPRO_IMM8_X0)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0, R_TILEPRO_IMM8_Y0)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1, R_TILEPRO_IMM8_X1)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1, R_TILEPRO_IMM8_Y1)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_DEST_IMM8_X1, R_TILEPRO_DEST_IMM8_X1)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_MT_IMM15_X1, R_TILEPRO_MT_IMM15_X1)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_MF_IMM15_X1, R_TILEPRO_MF_IMM15_X1)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0, R_TILEPRO_IMM16_X0)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1, R_TILEPRO_IMM16_X1)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO, R_TILEPRO_IMM16_X0_LO)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO, R_TILEPRO_IMM16_X1_LO)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI, R_TILEPRO_IMM16_X0_HI)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI, R_TILEPRO_IMM16_X1_HI)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA, R_TILEPRO_IMM16_X0_HA)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA, R_TILEPRO_IMM16_X1_HA)
|
||
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_PCREL, R_TILEPRO_IMM16_X0_PCREL)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_PCREL, R_TILEPRO_IMM16_X1_PCREL)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO_PCREL, R_TILEPRO_IMM16_X0_LO_PCREL)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO_PCREL, R_TILEPRO_IMM16_X1_LO_PCREL)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI_PCREL, R_TILEPRO_IMM16_X0_HI_PCREL)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI_PCREL, R_TILEPRO_IMM16_X1_HI_PCREL)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA_PCREL, R_TILEPRO_IMM16_X0_HA_PCREL)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA_PCREL, R_TILEPRO_IMM16_X1_HA_PCREL)
|
||
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT, R_TILEPRO_IMM16_X0_GOT)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT, R_TILEPRO_IMM16_X1_GOT)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_LO, R_TILEPRO_IMM16_X0_GOT_LO)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_LO, R_TILEPRO_IMM16_X1_GOT_LO)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HI, R_TILEPRO_IMM16_X0_GOT_HI)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HI, R_TILEPRO_IMM16_X1_GOT_HI)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HA, R_TILEPRO_IMM16_X0_GOT_HA)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HA, R_TILEPRO_IMM16_X1_GOT_HA)
|
||
|
||
TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X0, R_TILEPRO_MMSTART_X0)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X0, R_TILEPRO_MMEND_X0)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X1, R_TILEPRO_MMSTART_X1)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X1, R_TILEPRO_MMEND_X1)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X0, R_TILEPRO_SHAMT_X0)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X1, R_TILEPRO_SHAMT_X1)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y0, R_TILEPRO_SHAMT_Y0)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y1, R_TILEPRO_SHAMT_Y1)
|
||
|
||
TH_REMAP (BFD_RELOC_TILEPRO_TLS_GD_CALL, R_TILEPRO_TLS_GD_CALL)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0_TLS_GD_ADD, R_TILEPRO_IMM8_X0_TLS_GD_ADD)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1_TLS_GD_ADD, R_TILEPRO_IMM8_X1_TLS_GD_ADD)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0_TLS_GD_ADD, R_TILEPRO_IMM8_Y0_TLS_GD_ADD)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1_TLS_GD_ADD, R_TILEPRO_IMM8_Y1_TLS_GD_ADD)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_TLS_IE_LOAD, R_TILEPRO_TLS_IE_LOAD)
|
||
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD, R_TILEPRO_IMM16_X0_TLS_GD)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD, R_TILEPRO_IMM16_X1_TLS_GD)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_LO, R_TILEPRO_IMM16_X0_TLS_GD_LO)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_LO, R_TILEPRO_IMM16_X1_TLS_GD_LO)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HI, R_TILEPRO_IMM16_X0_TLS_GD_HI)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HI, R_TILEPRO_IMM16_X1_TLS_GD_HI)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HA, R_TILEPRO_IMM16_X0_TLS_GD_HA)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HA, R_TILEPRO_IMM16_X1_TLS_GD_HA)
|
||
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE, R_TILEPRO_IMM16_X0_TLS_IE)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE, R_TILEPRO_IMM16_X1_TLS_IE)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_LO, R_TILEPRO_IMM16_X0_TLS_IE_LO)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_LO, R_TILEPRO_IMM16_X1_TLS_IE_LO)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HI, R_TILEPRO_IMM16_X0_TLS_IE_HI)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HI, R_TILEPRO_IMM16_X1_TLS_IE_HI)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HA, R_TILEPRO_IMM16_X0_TLS_IE_HA)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HA, R_TILEPRO_IMM16_X1_TLS_IE_HA)
|
||
|
||
TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPMOD32, R_TILEPRO_TLS_DTPMOD32)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPOFF32, R_TILEPRO_TLS_DTPOFF32)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_TLS_TPOFF32, R_TILEPRO_TLS_TPOFF32)
|
||
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE, R_TILEPRO_IMM16_X0_TLS_LE)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE, R_TILEPRO_IMM16_X1_TLS_LE)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_LO, R_TILEPRO_IMM16_X0_TLS_LE_LO)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_LO, R_TILEPRO_IMM16_X1_TLS_LE_LO)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HI, R_TILEPRO_IMM16_X0_TLS_LE_HI)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HI, R_TILEPRO_IMM16_X1_TLS_LE_HI)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HA, R_TILEPRO_IMM16_X0_TLS_LE_HA)
|
||
TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HA, R_TILEPRO_IMM16_X1_TLS_LE_HA)
|
||
|
||
#undef TH_REMAP
|
||
|
||
{ BFD_RELOC_VTABLE_INHERIT, R_TILEPRO_GNU_VTINHERIT, tilepro_elf_howto_table2 },
|
||
{ BFD_RELOC_VTABLE_ENTRY, R_TILEPRO_GNU_VTENTRY, tilepro_elf_howto_table2 },
|
||
};
|
||
|
||
|
||
|
||
/* The TILEPro linker needs to keep track of the number of relocs that it
|
||
decides to copy as dynamic relocs in check_relocs for each symbol.
|
||
This is so that it can later discard them if they are found to be
|
||
unnecessary. We store the information in a field extending the
|
||
regular ELF linker hash table. */
|
||
|
||
struct tilepro_elf_dyn_relocs
|
||
{
|
||
struct tilepro_elf_dyn_relocs *next;
|
||
|
||
/* The input section of the reloc. */
|
||
asection *sec;
|
||
|
||
/* Total number of relocs copied for the input section. */
|
||
bfd_size_type count;
|
||
|
||
/* Number of pc-relative relocs copied for the input section. */
|
||
bfd_size_type pc_count;
|
||
};
|
||
|
||
/* TILEPRO ELF linker hash entry. */
|
||
|
||
struct tilepro_elf_link_hash_entry
|
||
{
|
||
struct elf_link_hash_entry elf;
|
||
|
||
/* Track dynamic relocs copied for this symbol. */
|
||
struct tilepro_elf_dyn_relocs *dyn_relocs;
|
||
|
||
#define GOT_UNKNOWN 0
|
||
#define GOT_NORMAL 1
|
||
#define GOT_TLS_GD 2
|
||
#define GOT_TLS_IE 4
|
||
unsigned char tls_type;
|
||
};
|
||
|
||
#define tilepro_elf_hash_entry(ent) \
|
||
((struct tilepro_elf_link_hash_entry *)(ent))
|
||
|
||
struct _bfd_tilepro_elf_obj_tdata
|
||
{
|
||
struct elf_obj_tdata root;
|
||
|
||
/* tls_type for each local got entry. */
|
||
char *local_got_tls_type;
|
||
};
|
||
|
||
#define _bfd_tilepro_elf_tdata(abfd) \
|
||
((struct _bfd_tilepro_elf_obj_tdata *) (abfd)->tdata.any)
|
||
|
||
#define _bfd_tilepro_elf_local_got_tls_type(abfd) \
|
||
(_bfd_tilepro_elf_tdata (abfd)->local_got_tls_type)
|
||
|
||
#define is_tilepro_elf(bfd) \
|
||
(bfd_get_flavour (bfd) == bfd_target_elf_flavour \
|
||
&& elf_tdata (bfd) != NULL \
|
||
&& elf_object_id (bfd) == TILEPRO_ELF_DATA)
|
||
|
||
/* Allocate TILEPro ELF private object data. */
|
||
|
||
static bfd_boolean
|
||
tilepro_elf_mkobject (bfd *abfd)
|
||
{
|
||
return bfd_elf_allocate_object (abfd,
|
||
sizeof (struct _bfd_tilepro_elf_obj_tdata),
|
||
TILEPRO_ELF_DATA);
|
||
}
|
||
|
||
#include "elf/common.h"
|
||
#include "elf/internal.h"
|
||
|
||
struct tilepro_elf_link_hash_table
|
||
{
|
||
struct elf_link_hash_table elf;
|
||
|
||
/* Small local sym to section mapping cache. */
|
||
struct sym_cache sym_cache;
|
||
};
|
||
|
||
/* Get the Tilepro ELF linker hash table from a link_info structure. */
|
||
#define tilepro_elf_hash_table(p) \
|
||
(elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
|
||
== TILEPRO_ELF_DATA \
|
||
? ((struct tilepro_elf_link_hash_table *) ((p)->hash)) : NULL)
|
||
|
||
static reloc_howto_type *
|
||
tilepro_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
|
||
bfd_reloc_code_real_type code)
|
||
{
|
||
unsigned int i;
|
||
|
||
for (i = ARRAY_SIZE (tilepro_reloc_map); i--;)
|
||
{
|
||
const reloc_map * entry;
|
||
|
||
entry = tilepro_reloc_map + i;
|
||
|
||
if (entry->bfd_reloc_val == code)
|
||
return entry->table + (entry->tilepro_reloc_val
|
||
- entry->table[0].type);
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
static reloc_howto_type *
|
||
tilepro_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
||
const char *r_name)
|
||
{
|
||
unsigned int i;
|
||
|
||
for (i = 0;
|
||
i < (sizeof (tilepro_elf_howto_table)
|
||
/ sizeof (tilepro_elf_howto_table[0]));
|
||
i++)
|
||
if (tilepro_elf_howto_table[i].name != NULL
|
||
&& strcasecmp (tilepro_elf_howto_table[i].name, r_name) == 0)
|
||
return &tilepro_elf_howto_table[i];
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/* Set the howto pointer for an TILEPro ELF reloc. */
|
||
|
||
static void
|
||
tilepro_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
|
||
arelent * cache_ptr,
|
||
Elf_Internal_Rela * dst)
|
||
{
|
||
unsigned int r_type = ELF32_R_TYPE (dst->r_info);
|
||
|
||
if (r_type <= (unsigned int) R_TILEPRO_IMM16_X1_TLS_LE_HA)
|
||
cache_ptr->howto = &tilepro_elf_howto_table [r_type];
|
||
else if (r_type - R_TILEPRO_GNU_VTINHERIT
|
||
<= (unsigned int) R_TILEPRO_GNU_VTENTRY)
|
||
cache_ptr->howto
|
||
= &tilepro_elf_howto_table2 [r_type - R_TILEPRO_GNU_VTINHERIT];
|
||
else
|
||
abort ();
|
||
}
|
||
|
||
typedef tilepro_bundle_bits (*tilepro_create_func)(int);
|
||
|
||
static const tilepro_create_func reloc_to_create_func[] =
|
||
{
|
||
/* The first fourteen relocation types don't correspond to operands */
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
|
||
/* The remaining relocations are used for immediate operands */
|
||
create_BrOff_X1,
|
||
create_JOffLong_X1,
|
||
create_JOffLong_X1,
|
||
create_Imm8_X0,
|
||
create_Imm8_Y0,
|
||
create_Imm8_X1,
|
||
create_Imm8_Y1,
|
||
create_MT_Imm15_X1,
|
||
create_MF_Imm15_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_MMStart_X0,
|
||
create_MMEnd_X0,
|
||
create_MMStart_X1,
|
||
create_MMEnd_X1,
|
||
create_ShAmt_X0,
|
||
create_ShAmt_X1,
|
||
create_ShAmt_Y0,
|
||
create_ShAmt_Y1,
|
||
|
||
create_Dest_Imm8_X1,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
};
|
||
|
||
#define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
|
||
|
||
/* Support for core dump NOTE sections. */
|
||
|
||
static bfd_boolean
|
||
tilepro_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
|
||
{
|
||
int offset;
|
||
size_t size;
|
||
|
||
if (note->descsz != TILEPRO_PRSTATUS_SIZEOF)
|
||
return FALSE;
|
||
|
||
/* pr_cursig */
|
||
elf_tdata (abfd)->core->signal =
|
||
bfd_get_16 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_CURSIG);
|
||
|
||
/* pr_pid */
|
||
elf_tdata (abfd)->core->pid =
|
||
bfd_get_32 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_PID);
|
||
|
||
/* pr_reg */
|
||
offset = TILEPRO_PRSTATUS_OFFSET_PR_REG;
|
||
size = TILEPRO_GREGSET_T_SIZE;
|
||
|
||
/* Make a ".reg/999" section. */
|
||
return _bfd_elfcore_make_pseudosection (abfd, ".reg",
|
||
size, note->descpos + offset);
|
||
}
|
||
|
||
static bfd_boolean
|
||
tilepro_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
|
||
{
|
||
if (note->descsz != TILEPRO_PRPSINFO_SIZEOF)
|
||
return FALSE;
|
||
|
||
elf_tdata (abfd)->core->program
|
||
= _bfd_elfcore_strndup (abfd,
|
||
note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_FNAME,
|
||
16);
|
||
elf_tdata (abfd)->core->command
|
||
= _bfd_elfcore_strndup (abfd,
|
||
note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_PSARGS,
|
||
ELF_PR_PSARGS_SIZE);
|
||
|
||
|
||
/* 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;
|
||
}
|
||
|
||
|
||
static void
|
||
tilepro_elf_append_rela_32 (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
|
||
{
|
||
Elf32_External_Rela *loc32;
|
||
|
||
loc32 = (Elf32_External_Rela *) s->contents;
|
||
loc32 += s->reloc_count++;
|
||
bfd_elf32_swap_reloca_out (abfd, rel, (bfd_byte *) loc32);
|
||
}
|
||
|
||
/* PLT/GOT stuff */
|
||
|
||
/* The procedure linkage table starts with the following header:
|
||
|
||
{
|
||
rli r29, r29, 16
|
||
lwadd r28, r27, 4
|
||
}
|
||
lw r27, r27
|
||
{
|
||
info 10 ## SP not offset, return PC in LR
|
||
jr r27
|
||
}
|
||
|
||
Subsequent entries are the following, jumping to the header at the end:
|
||
|
||
lnk r28
|
||
1:
|
||
{
|
||
auli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
|
||
auli r27, r28, <_GLOBAL_OFFSET_TABLE_ - 1b>
|
||
}
|
||
{
|
||
addli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
|
||
addli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
|
||
}
|
||
{
|
||
auli r29, zero, MY_PLT_INDEX
|
||
lw r28, r28
|
||
}
|
||
{
|
||
info 10 ## SP not offset, return PC in LR
|
||
jr r28
|
||
}
|
||
|
||
We initially store MY_PLT_INDEX in the high bits so that we can use the all
|
||
16 bits as an unsigned offset; if we use the low bits we would get an
|
||
unwanted sign extension. The PLT header then rotates the index to get the
|
||
right value, before calling the resolution routine. This computation can
|
||
fit in unused bundle slots so it's free.
|
||
|
||
This code sequence lets the code at at the start of the PLT determine
|
||
which PLT entry was executed by examining 'r29'.
|
||
|
||
Note that MY_PLT_INDEX skips over the header entries, so the first
|
||
actual jump table entry has index zero.
|
||
*/
|
||
|
||
#define PLT_HEADER_SIZE_IN_BUNDLES 3
|
||
#define PLT_ENTRY_SIZE_IN_BUNDLES 5
|
||
|
||
#define PLT_HEADER_SIZE \
|
||
(PLT_HEADER_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
|
||
#define PLT_ENTRY_SIZE \
|
||
(PLT_ENTRY_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
|
||
|
||
/* The size in bytes of an entry in the global offset table. */
|
||
|
||
#define GOT_ENTRY_SIZE TILEPRO_BYTES_PER_WORD
|
||
|
||
#define GOTPLT_HEADER_SIZE (2 * GOT_ENTRY_SIZE)
|
||
|
||
|
||
static const bfd_byte
|
||
tilepro_plt0_entry[PLT_HEADER_SIZE] =
|
||
{
|
||
0x5d, 0x07, 0x03, 0x70,
|
||
0x6e, 0x23, 0xd0, 0x30, /* { rli r29, r29, 16 ; lwadd r28, r27, 4 } */
|
||
0x00, 0x50, 0xba, 0x6d,
|
||
0x00, 0x08, 0x6d, 0xdc, /* { lw r27, r27 } */
|
||
0xff, 0xaf, 0x10, 0x50,
|
||
0x60, 0x03, 0x18, 0x08, /* { info 10 ; jr r27 } */
|
||
};
|
||
|
||
static const bfd_byte
|
||
tilepro_short_plt_entry[PLT_ENTRY_SIZE] =
|
||
{
|
||
0x00, 0x50, 0x16, 0x70,
|
||
0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
|
||
0x1c, 0x07, 0x00, 0xa0,
|
||
0x8d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r28, 0 } */
|
||
0xdd, 0x0f, 0x00, 0x30,
|
||
0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
|
||
0xff, 0xaf, 0x10, 0x50,
|
||
0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
|
||
0x00, 0x00, 0x00, 0x00,
|
||
0x00, 0x00, 0x00, 0x00,
|
||
};
|
||
|
||
static const bfd_byte
|
||
tilepro_long_plt_entry[PLT_ENTRY_SIZE] =
|
||
{
|
||
0x00, 0x50, 0x16, 0x70,
|
||
0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
|
||
0x1c, 0x07, 0x00, 0xb0,
|
||
0x8d, 0x03, 0x00, 0x20, /* { auli r28, r28, 0 ; auli r27, r28, 0 } */
|
||
0x1c, 0x07, 0x00, 0xa0,
|
||
0x6d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r27, 0 } */
|
||
0xdd, 0x0f, 0x00, 0x30,
|
||
0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
|
||
0xff, 0xaf, 0x10, 0x50,
|
||
0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
|
||
};
|
||
|
||
static bfd_vma
|
||
tilepro_ha16(bfd_vma vma)
|
||
{
|
||
return ((vma >> 16) + ((vma >> 15) & 1)) & 0xffff;
|
||
}
|
||
|
||
static int
|
||
tilepro_plt_entry_build (asection *splt, asection *sgotplt, bfd_vma offset,
|
||
bfd_vma *r_offset)
|
||
{
|
||
int plt_index = (offset - PLT_ENTRY_SIZE) / PLT_ENTRY_SIZE;
|
||
int got_offset = plt_index * GOT_ENTRY_SIZE + GOTPLT_HEADER_SIZE;
|
||
tilepro_bundle_bits *pc;
|
||
|
||
/* Compute the distance from the got entry to the lnk. */
|
||
bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
|
||
+ sgotplt->output_offset
|
||
+ got_offset
|
||
- splt->output_section->vma
|
||
- splt->output_offset
|
||
- offset
|
||
- TILEPRO_BUNDLE_SIZE_IN_BYTES;
|
||
|
||
/* Compute the distance to GOTPLT[0]. */
|
||
bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
|
||
|
||
/* Check whether we can use the short plt entry with 16-bit offset. */
|
||
bfd_boolean short_plt_entry =
|
||
(dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
|
||
|
||
/* Copy the plt entry template. */
|
||
memcpy (splt->contents + offset,
|
||
short_plt_entry ? tilepro_short_plt_entry : tilepro_long_plt_entry,
|
||
PLT_ENTRY_SIZE);
|
||
|
||
/* Write the immediate offsets. */
|
||
pc = (tilepro_bundle_bits *)(splt->contents + offset);
|
||
pc++;
|
||
|
||
if (!short_plt_entry)
|
||
{
|
||
/* { auli r28, r28, &GOTPLT[MY_GOT_INDEX] ; auli r27, r28, &GOTPLT[0] } */
|
||
*pc++ |= create_Imm16_X0 (tilepro_ha16 (dist_got_entry))
|
||
| create_Imm16_X1 (tilepro_ha16 (dist_got0));
|
||
}
|
||
|
||
/* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r28, &GOTPLT[0] } or
|
||
{ addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r27, &GOTPLT[0] } */
|
||
*pc++ |= create_Imm16_X0 (dist_got_entry)
|
||
| create_Imm16_X1 (dist_got0);
|
||
|
||
/* { auli r29, zero, MY_PLT_INDEX ; lw r28, r28 } */
|
||
*pc |= create_Imm16_X0 (plt_index);
|
||
|
||
/* Set the relocation offset. */
|
||
*r_offset = got_offset;
|
||
|
||
return plt_index;
|
||
}
|
||
|
||
#define TILEPRO_ELF_RELA_BYTES (sizeof(Elf32_External_Rela))
|
||
|
||
|
||
/* Create an entry in an TILEPro ELF linker hash table. */
|
||
|
||
static struct bfd_hash_entry *
|
||
link_hash_newfunc (struct bfd_hash_entry *entry,
|
||
struct bfd_hash_table *table, const char *string)
|
||
{
|
||
/* Allocate the structure if it has not already been allocated by a
|
||
subclass. */
|
||
if (entry == NULL)
|
||
{
|
||
entry =
|
||
bfd_hash_allocate (table,
|
||
sizeof (struct tilepro_elf_link_hash_entry));
|
||
if (entry == NULL)
|
||
return entry;
|
||
}
|
||
|
||
/* Call the allocation method of the superclass. */
|
||
entry = _bfd_elf_link_hash_newfunc (entry, table, string);
|
||
if (entry != NULL)
|
||
{
|
||
struct tilepro_elf_link_hash_entry *eh;
|
||
|
||
eh = (struct tilepro_elf_link_hash_entry *) entry;
|
||
eh->dyn_relocs = NULL;
|
||
eh->tls_type = GOT_UNKNOWN;
|
||
}
|
||
|
||
return entry;
|
||
}
|
||
|
||
/* Create a TILEPRO ELF linker hash table. */
|
||
|
||
static struct bfd_link_hash_table *
|
||
tilepro_elf_link_hash_table_create (bfd *abfd)
|
||
{
|
||
struct tilepro_elf_link_hash_table *ret;
|
||
bfd_size_type amt = sizeof (struct tilepro_elf_link_hash_table);
|
||
|
||
ret = (struct tilepro_elf_link_hash_table *) bfd_zmalloc (amt);
|
||
if (ret == NULL)
|
||
return NULL;
|
||
|
||
if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
|
||
sizeof (struct tilepro_elf_link_hash_entry),
|
||
TILEPRO_ELF_DATA))
|
||
{
|
||
free (ret);
|
||
return NULL;
|
||
}
|
||
|
||
return &ret->elf.root;
|
||
}
|
||
|
||
/* Create the .got section. */
|
||
|
||
static bfd_boolean
|
||
tilepro_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
|
||
{
|
||
flagword flags;
|
||
asection *s, *s_got;
|
||
struct elf_link_hash_entry *h;
|
||
const struct elf_backend_data *bed = get_elf_backend_data (abfd);
|
||
struct elf_link_hash_table *htab = elf_hash_table (info);
|
||
|
||
/* This function may be called more than once. */
|
||
if (htab->sgot != NULL)
|
||
return TRUE;
|
||
|
||
flags = bed->dynamic_sec_flags;
|
||
|
||
s = bfd_make_section_with_flags (abfd,
|
||
(bed->rela_plts_and_copies_p
|
||
? ".rela.got" : ".rel.got"),
|
||
(bed->dynamic_sec_flags
|
||
| SEC_READONLY));
|
||
if (s == NULL
|
||
|| ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
|
||
return FALSE;
|
||
htab->srelgot = s;
|
||
|
||
s = s_got = bfd_make_section_with_flags (abfd, ".got", flags);
|
||
if (s == NULL
|
||
|| !bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
|
||
return FALSE;
|
||
htab->sgot = s;
|
||
|
||
/* The first bit of the global offset table is the header. */
|
||
s->size += bed->got_header_size;
|
||
|
||
if (bed->want_got_plt)
|
||
{
|
||
s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
|
||
if (s == NULL
|
||
|| !bfd_set_section_alignment (abfd, s,
|
||
bed->s->log_file_align))
|
||
return FALSE;
|
||
htab->sgotplt = s;
|
||
|
||
/* Reserve room for the header. */
|
||
s->size += GOTPLT_HEADER_SIZE;
|
||
}
|
||
|
||
if (bed->want_got_sym)
|
||
{
|
||
/* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
|
||
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_got,
|
||
"_GLOBAL_OFFSET_TABLE_");
|
||
elf_hash_table (info)->hgot = h;
|
||
if (h == NULL)
|
||
return FALSE;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
|
||
.rela.bss sections in DYNOBJ, and set up shortcuts to them in our
|
||
hash table. */
|
||
|
||
static bfd_boolean
|
||
tilepro_elf_create_dynamic_sections (bfd *dynobj,
|
||
struct bfd_link_info *info)
|
||
{
|
||
if (!tilepro_elf_create_got_section (dynobj, info))
|
||
return FALSE;
|
||
|
||
return _bfd_elf_create_dynamic_sections (dynobj, info);
|
||
}
|
||
|
||
/* Copy the extra info we tack onto an elf_link_hash_entry. */
|
||
|
||
static void
|
||
tilepro_elf_copy_indirect_symbol (struct bfd_link_info *info,
|
||
struct elf_link_hash_entry *dir,
|
||
struct elf_link_hash_entry *ind)
|
||
{
|
||
struct tilepro_elf_link_hash_entry *edir, *eind;
|
||
|
||
edir = (struct tilepro_elf_link_hash_entry *) dir;
|
||
eind = (struct tilepro_elf_link_hash_entry *) ind;
|
||
|
||
if (eind->dyn_relocs != NULL)
|
||
{
|
||
if (edir->dyn_relocs != NULL)
|
||
{
|
||
struct tilepro_elf_dyn_relocs **pp;
|
||
struct tilepro_elf_dyn_relocs *p;
|
||
|
||
/* Add reloc counts against the indirect sym to the direct sym
|
||
list. Merge any entries against the same section. */
|
||
for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
|
||
{
|
||
struct tilepro_elf_dyn_relocs *q;
|
||
|
||
for (q = edir->dyn_relocs; q != NULL; q = q->next)
|
||
if (q->sec == p->sec)
|
||
{
|
||
q->pc_count += p->pc_count;
|
||
q->count += p->count;
|
||
*pp = p->next;
|
||
break;
|
||
}
|
||
if (q == NULL)
|
||
pp = &p->next;
|
||
}
|
||
*pp = edir->dyn_relocs;
|
||
}
|
||
|
||
edir->dyn_relocs = eind->dyn_relocs;
|
||
eind->dyn_relocs = NULL;
|
||
}
|
||
|
||
if (ind->root.type == bfd_link_hash_indirect
|
||
&& dir->got.refcount <= 0)
|
||
{
|
||
edir->tls_type = eind->tls_type;
|
||
eind->tls_type = GOT_UNKNOWN;
|
||
}
|
||
_bfd_elf_link_hash_copy_indirect (info, dir, ind);
|
||
}
|
||
|
||
static int
|
||
tilepro_tls_translate_to_le (int r_type)
|
||
{
|
||
switch (r_type)
|
||
{
|
||
case R_TILEPRO_IMM16_X0_TLS_GD:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE:
|
||
return R_TILEPRO_IMM16_X0_TLS_LE;
|
||
|
||
case R_TILEPRO_IMM16_X1_TLS_GD:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE:
|
||
return R_TILEPRO_IMM16_X1_TLS_LE;
|
||
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_LO:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_LO:
|
||
return R_TILEPRO_IMM16_X0_TLS_LE_LO;
|
||
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_LO:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_LO:
|
||
return R_TILEPRO_IMM16_X1_TLS_LE_LO;
|
||
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_HI:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_HI:
|
||
return R_TILEPRO_IMM16_X0_TLS_LE_HI;
|
||
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_HI:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_HI:
|
||
return R_TILEPRO_IMM16_X1_TLS_LE_HI;
|
||
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_HA:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_HA:
|
||
return R_TILEPRO_IMM16_X0_TLS_LE_HA;
|
||
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_HA:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_HA:
|
||
return R_TILEPRO_IMM16_X1_TLS_LE_HA;
|
||
}
|
||
return r_type;
|
||
}
|
||
|
||
static int
|
||
tilepro_tls_translate_to_ie (int r_type)
|
||
{
|
||
switch (r_type)
|
||
{
|
||
case R_TILEPRO_IMM16_X0_TLS_GD:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE:
|
||
return R_TILEPRO_IMM16_X0_TLS_IE;
|
||
|
||
case R_TILEPRO_IMM16_X1_TLS_GD:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE:
|
||
return R_TILEPRO_IMM16_X1_TLS_IE;
|
||
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_LO:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_LO:
|
||
return R_TILEPRO_IMM16_X0_TLS_IE_LO;
|
||
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_LO:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_LO:
|
||
return R_TILEPRO_IMM16_X1_TLS_IE_LO;
|
||
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_HI:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_HI:
|
||
return R_TILEPRO_IMM16_X0_TLS_IE_HI;
|
||
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_HI:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_HI:
|
||
return R_TILEPRO_IMM16_X1_TLS_IE_HI;
|
||
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_HA:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_HA:
|
||
return R_TILEPRO_IMM16_X0_TLS_IE_HA;
|
||
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_HA:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_HA:
|
||
return R_TILEPRO_IMM16_X1_TLS_IE_HA;
|
||
}
|
||
return r_type;
|
||
}
|
||
|
||
static int
|
||
tilepro_elf_tls_transition (struct bfd_link_info *info, int r_type,
|
||
int is_local)
|
||
{
|
||
if (bfd_link_pic (info))
|
||
return r_type;
|
||
|
||
if (is_local)
|
||
return tilepro_tls_translate_to_le (r_type);
|
||
else
|
||
return tilepro_tls_translate_to_ie (r_type);
|
||
}
|
||
|
||
/* Look through the relocs for a section during the first phase, and
|
||
allocate space in the global offset table or procedure linkage
|
||
table. */
|
||
|
||
static bfd_boolean
|
||
tilepro_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
|
||
asection *sec, const Elf_Internal_Rela *relocs)
|
||
{
|
||
struct tilepro_elf_link_hash_table *htab;
|
||
Elf_Internal_Shdr *symtab_hdr;
|
||
struct elf_link_hash_entry **sym_hashes;
|
||
const Elf_Internal_Rela *rel;
|
||
const Elf_Internal_Rela *rel_end;
|
||
asection *sreloc;
|
||
int num_relocs;
|
||
|
||
if (bfd_link_relocatable (info))
|
||
return TRUE;
|
||
|
||
htab = tilepro_elf_hash_table (info);
|
||
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
||
sym_hashes = elf_sym_hashes (abfd);
|
||
|
||
sreloc = NULL;
|
||
|
||
num_relocs = sec->reloc_count;
|
||
|
||
BFD_ASSERT (is_tilepro_elf (abfd) || num_relocs == 0);
|
||
|
||
if (htab->elf.dynobj == NULL)
|
||
htab->elf.dynobj = abfd;
|
||
|
||
rel_end = relocs + num_relocs;
|
||
for (rel = relocs; rel < rel_end; rel++)
|
||
{
|
||
unsigned int r_type;
|
||
unsigned long r_symndx;
|
||
struct elf_link_hash_entry *h;
|
||
int tls_type;
|
||
|
||
r_symndx = ELF32_R_SYM (rel->r_info);
|
||
r_type = ELF32_R_TYPE (rel->r_info);
|
||
|
||
if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
|
||
{
|
||
/* xgettext:c-format */
|
||
_bfd_error_handler (_("%B: bad symbol index: %d"),
|
||
abfd, r_symndx);
|
||
return FALSE;
|
||
}
|
||
|
||
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;
|
||
|
||
/* PR15323, ref flags aren't set for references in the same
|
||
object. */
|
||
h->root.non_ir_ref = 1;
|
||
}
|
||
|
||
r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
|
||
switch (r_type)
|
||
{
|
||
case R_TILEPRO_IMM16_X0_TLS_LE:
|
||
case R_TILEPRO_IMM16_X1_TLS_LE:
|
||
case R_TILEPRO_IMM16_X0_TLS_LE_LO:
|
||
case R_TILEPRO_IMM16_X1_TLS_LE_LO:
|
||
case R_TILEPRO_IMM16_X0_TLS_LE_HI:
|
||
case R_TILEPRO_IMM16_X1_TLS_LE_HI:
|
||
case R_TILEPRO_IMM16_X0_TLS_LE_HA:
|
||
case R_TILEPRO_IMM16_X1_TLS_LE_HA:
|
||
if (bfd_link_pic (info))
|
||
goto r_tilepro_plt32;
|
||
break;
|
||
|
||
case R_TILEPRO_IMM16_X0_TLS_GD:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD:
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_LO:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_LO:
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_HI:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_HI:
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_HA:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_HA:
|
||
BFD_ASSERT (bfd_link_pic (info));
|
||
tls_type = GOT_TLS_GD;
|
||
goto have_got_reference;
|
||
|
||
case R_TILEPRO_IMM16_X0_TLS_IE:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_LO:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_LO:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_HI:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_HI:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_HA:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_HA:
|
||
tls_type = GOT_TLS_IE;
|
||
if (bfd_link_pic (info))
|
||
info->flags |= DF_STATIC_TLS;
|
||
goto have_got_reference;
|
||
|
||
case R_TILEPRO_IMM16_X0_GOT:
|
||
case R_TILEPRO_IMM16_X1_GOT:
|
||
case R_TILEPRO_IMM16_X0_GOT_LO:
|
||
case R_TILEPRO_IMM16_X1_GOT_LO:
|
||
case R_TILEPRO_IMM16_X0_GOT_HI:
|
||
case R_TILEPRO_IMM16_X1_GOT_HI:
|
||
case R_TILEPRO_IMM16_X0_GOT_HA:
|
||
case R_TILEPRO_IMM16_X1_GOT_HA:
|
||
tls_type = GOT_NORMAL;
|
||
/* Fall Through */
|
||
|
||
have_got_reference:
|
||
/* This symbol requires a global offset table entry. */
|
||
{
|
||
int old_tls_type;
|
||
|
||
if (h != NULL)
|
||
{
|
||
h->got.refcount += 1;
|
||
old_tls_type = tilepro_elf_hash_entry(h)->tls_type;
|
||
}
|
||
else
|
||
{
|
||
bfd_signed_vma *local_got_refcounts;
|
||
|
||
/* This is a global offset table entry for a local symbol. */
|
||
local_got_refcounts = elf_local_got_refcounts (abfd);
|
||
if (local_got_refcounts == NULL)
|
||
{
|
||
bfd_size_type size;
|
||
|
||
size = symtab_hdr->sh_info;
|
||
size *= (sizeof (bfd_signed_vma) + sizeof(char));
|
||
local_got_refcounts = ((bfd_signed_vma *)
|
||
bfd_zalloc (abfd, size));
|
||
if (local_got_refcounts == NULL)
|
||
return FALSE;
|
||
elf_local_got_refcounts (abfd) = local_got_refcounts;
|
||
_bfd_tilepro_elf_local_got_tls_type (abfd)
|
||
= (char *) (local_got_refcounts + symtab_hdr->sh_info);
|
||
}
|
||
local_got_refcounts[r_symndx] += 1;
|
||
old_tls_type =
|
||
_bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx];
|
||
}
|
||
|
||
/* If a TLS symbol is accessed using IE at least once,
|
||
there is no point to use dynamic model for it. */
|
||
if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
|
||
&& (old_tls_type != GOT_TLS_GD
|
||
|| tls_type != GOT_TLS_IE))
|
||
{
|
||
if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
|
||
tls_type = old_tls_type;
|
||
else
|
||
{
|
||
_bfd_error_handler
|
||
/* xgettext:c-format */
|
||
(_("%B: `%s' accessed both as normal and thread local symbol"),
|
||
abfd, h ? h->root.root.string : "<local>");
|
||
return FALSE;
|
||
}
|
||
}
|
||
|
||
if (old_tls_type != tls_type)
|
||
{
|
||
if (h != NULL)
|
||
tilepro_elf_hash_entry (h)->tls_type = tls_type;
|
||
else
|
||
_bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx] =
|
||
tls_type;
|
||
}
|
||
}
|
||
|
||
if (htab->elf.sgot == NULL)
|
||
{
|
||
if (!tilepro_elf_create_got_section (htab->elf.dynobj, info))
|
||
return FALSE;
|
||
}
|
||
break;
|
||
|
||
case R_TILEPRO_TLS_GD_CALL:
|
||
if (bfd_link_pic (info))
|
||
{
|
||
/* These are basically R_TILEPRO_JOFFLONG_X1_PLT relocs
|
||
against __tls_get_addr. */
|
||
struct bfd_link_hash_entry *bh = NULL;
|
||
if (! _bfd_generic_link_add_one_symbol (info, abfd,
|
||
"__tls_get_addr", 0,
|
||
bfd_und_section_ptr, 0,
|
||
NULL, FALSE, FALSE,
|
||
&bh))
|
||
return FALSE;
|
||
h = (struct elf_link_hash_entry *) bh;
|
||
}
|
||
else
|
||
break;
|
||
/* Fall through */
|
||
|
||
case R_TILEPRO_JOFFLONG_X1_PLT:
|
||
/* This symbol requires a procedure linkage table entry. We
|
||
actually build the entry in adjust_dynamic_symbol,
|
||
because this might be a case of linking PIC code without
|
||
linking in any dynamic objects, in which case we don't
|
||
need to generate a procedure linkage table after all. */
|
||
|
||
if (h != NULL)
|
||
{
|
||
h->needs_plt = 1;
|
||
h->plt.refcount += 1;
|
||
}
|
||
break;
|
||
|
||
case R_TILEPRO_32_PCREL:
|
||
case R_TILEPRO_16_PCREL:
|
||
case R_TILEPRO_8_PCREL:
|
||
case R_TILEPRO_IMM16_X0_PCREL:
|
||
case R_TILEPRO_IMM16_X1_PCREL:
|
||
case R_TILEPRO_IMM16_X0_LO_PCREL:
|
||
case R_TILEPRO_IMM16_X1_LO_PCREL:
|
||
case R_TILEPRO_IMM16_X0_HI_PCREL:
|
||
case R_TILEPRO_IMM16_X1_HI_PCREL:
|
||
case R_TILEPRO_IMM16_X0_HA_PCREL:
|
||
case R_TILEPRO_IMM16_X1_HA_PCREL:
|
||
if (h != NULL)
|
||
h->non_got_ref = 1;
|
||
|
||
if (h != NULL
|
||
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
||
break;
|
||
/* Fall through. */
|
||
|
||
case R_TILEPRO_32:
|
||
case R_TILEPRO_16:
|
||
case R_TILEPRO_8:
|
||
case R_TILEPRO_LO16:
|
||
case R_TILEPRO_HI16:
|
||
case R_TILEPRO_HA16:
|
||
case R_TILEPRO_COPY:
|
||
case R_TILEPRO_GLOB_DAT:
|
||
case R_TILEPRO_JMP_SLOT:
|
||
case R_TILEPRO_RELATIVE:
|
||
case R_TILEPRO_BROFF_X1:
|
||
case R_TILEPRO_JOFFLONG_X1:
|
||
case R_TILEPRO_IMM8_X0:
|
||
case R_TILEPRO_IMM8_Y0:
|
||
case R_TILEPRO_IMM8_X1:
|
||
case R_TILEPRO_IMM8_Y1:
|
||
case R_TILEPRO_DEST_IMM8_X1:
|
||
case R_TILEPRO_MT_IMM15_X1:
|
||
case R_TILEPRO_MF_IMM15_X1:
|
||
case R_TILEPRO_IMM16_X0:
|
||
case R_TILEPRO_IMM16_X1:
|
||
case R_TILEPRO_IMM16_X0_LO:
|
||
case R_TILEPRO_IMM16_X1_LO:
|
||
case R_TILEPRO_IMM16_X0_HI:
|
||
case R_TILEPRO_IMM16_X1_HI:
|
||
case R_TILEPRO_IMM16_X0_HA:
|
||
case R_TILEPRO_IMM16_X1_HA:
|
||
case R_TILEPRO_MMSTART_X0:
|
||
case R_TILEPRO_MMEND_X0:
|
||
case R_TILEPRO_MMSTART_X1:
|
||
case R_TILEPRO_MMEND_X1:
|
||
case R_TILEPRO_SHAMT_X0:
|
||
case R_TILEPRO_SHAMT_X1:
|
||
case R_TILEPRO_SHAMT_Y0:
|
||
case R_TILEPRO_SHAMT_Y1:
|
||
if (h != NULL)
|
||
h->non_got_ref = 1;
|
||
|
||
r_tilepro_plt32:
|
||
if (h != NULL && !bfd_link_pic (info))
|
||
{
|
||
/* We may need a .plt entry if the function this reloc
|
||
refers to is in a shared lib. */
|
||
h->plt.refcount += 1;
|
||
}
|
||
|
||
/* If we are creating a shared library, and this is a reloc
|
||
against a global symbol, or a non PC relative reloc
|
||
against a local symbol, then we need to copy the reloc
|
||
into the shared library. However, if we are linking with
|
||
-Bsymbolic, we do not need to copy a reloc against a
|
||
global symbol which is defined in an object we are
|
||
including in the link (i.e., DEF_REGULAR is set). At
|
||
this point we have not seen all the input files, so it is
|
||
possible that DEF_REGULAR is not set now but will be set
|
||
later (it is never cleared). In case of a weak definition,
|
||
DEF_REGULAR may be cleared later by a strong definition in
|
||
a shared library. We account for that possibility below by
|
||
storing information in the relocs_copied field of the hash
|
||
table entry. A similar situation occurs when creating
|
||
shared libraries and symbol visibility changes render the
|
||
symbol local.
|
||
|
||
If on the other hand, we are creating an executable, we
|
||
may need to keep relocations for symbols satisfied by a
|
||
dynamic library if we manage to avoid copy relocs for the
|
||
symbol. */
|
||
if ((bfd_link_pic (info)
|
||
&& (sec->flags & SEC_ALLOC) != 0
|
||
&& (! tilepro_elf_howto_table[r_type].pc_relative
|
||
|| (h != NULL
|
||
&& (! info->symbolic
|
||
|| h->root.type == bfd_link_hash_defweak
|
||
|| !h->def_regular))))
|
||
|| (!bfd_link_pic (info)
|
||
&& (sec->flags & SEC_ALLOC) != 0
|
||
&& h != NULL
|
||
&& (h->root.type == bfd_link_hash_defweak
|
||
|| !h->def_regular)))
|
||
{
|
||
struct tilepro_elf_dyn_relocs *p;
|
||
struct tilepro_elf_dyn_relocs **head;
|
||
|
||
/* When creating a shared object, we must copy these
|
||
relocs into the output file. We create a reloc
|
||
section in dynobj and make room for the reloc. */
|
||
if (sreloc == NULL)
|
||
{
|
||
sreloc = _bfd_elf_make_dynamic_reloc_section
|
||
(sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
|
||
|
||
if (sreloc == NULL)
|
||
return FALSE;
|
||
}
|
||
|
||
/* If this is a global symbol, we count the number of
|
||
relocations we need for this symbol. */
|
||
if (h != NULL)
|
||
head =
|
||
&((struct tilepro_elf_link_hash_entry *) h)->dyn_relocs;
|
||
else
|
||
{
|
||
/* Track dynamic relocs needed for local syms too.
|
||
We really need local syms available to do this
|
||
easily. Oh well. */
|
||
|
||
asection *s;
|
||
void *vpp;
|
||
Elf_Internal_Sym *isym;
|
||
|
||
isym = bfd_sym_from_r_symndx (&htab->sym_cache,
|
||
abfd, r_symndx);
|
||
if (isym == NULL)
|
||
return FALSE;
|
||
|
||
s = bfd_section_from_elf_index (abfd, isym->st_shndx);
|
||
if (s == NULL)
|
||
s = sec;
|
||
|
||
vpp = &elf_section_data (s)->local_dynrel;
|
||
head = (struct tilepro_elf_dyn_relocs **) vpp;
|
||
}
|
||
|
||
p = *head;
|
||
if (p == NULL || p->sec != sec)
|
||
{
|
||
bfd_size_type amt = sizeof *p;
|
||
p = ((struct tilepro_elf_dyn_relocs *)
|
||
bfd_alloc (htab->elf.dynobj, amt));
|
||
if (p == NULL)
|
||
return FALSE;
|
||
p->next = *head;
|
||
*head = p;
|
||
p->sec = sec;
|
||
p->count = 0;
|
||
p->pc_count = 0;
|
||
}
|
||
|
||
p->count += 1;
|
||
if (tilepro_elf_howto_table[r_type].pc_relative)
|
||
p->pc_count += 1;
|
||
}
|
||
|
||
break;
|
||
|
||
case R_TILEPRO_GNU_VTINHERIT:
|
||
if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
||
return FALSE;
|
||
break;
|
||
|
||
case R_TILEPRO_GNU_VTENTRY:
|
||
if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
||
return FALSE;
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
|
||
static asection *
|
||
tilepro_elf_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_TILEPRO_GNU_VTINHERIT:
|
||
case R_TILEPRO_GNU_VTENTRY:
|
||
return NULL;
|
||
}
|
||
}
|
||
|
||
/* FIXME: The test here, in check_relocs and in relocate_section
|
||
dealing with TLS optimization, ought to be !bfd_link_executable (info). */
|
||
if (bfd_link_pic (info))
|
||
{
|
||
switch (ELF32_R_TYPE (rel->r_info))
|
||
{
|
||
case R_TILEPRO_TLS_GD_CALL:
|
||
/* This reloc implicitly references __tls_get_addr. We know
|
||
another reloc will reference the same symbol as the one
|
||
on this reloc, so the real symbol and section will be
|
||
gc marked when processing the other reloc. That lets
|
||
us handle __tls_get_addr here. */
|
||
h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
|
||
FALSE, FALSE, TRUE);
|
||
BFD_ASSERT (h != NULL);
|
||
h->mark = 1;
|
||
if (h->u.weakdef != NULL)
|
||
h->u.weakdef->mark = 1;
|
||
sym = NULL;
|
||
}
|
||
}
|
||
|
||
return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
|
||
}
|
||
|
||
/* Update the got entry reference counts for the section being removed. */
|
||
static bfd_boolean
|
||
tilepro_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
|
||
asection *sec, const Elf_Internal_Rela *relocs)
|
||
{
|
||
struct tilepro_elf_link_hash_table *htab;
|
||
Elf_Internal_Shdr *symtab_hdr;
|
||
struct elf_link_hash_entry **sym_hashes;
|
||
bfd_signed_vma *local_got_refcounts;
|
||
const Elf_Internal_Rela *rel, *relend;
|
||
|
||
if (bfd_link_relocatable (info))
|
||
return TRUE;
|
||
|
||
BFD_ASSERT (is_tilepro_elf (abfd) || sec->reloc_count == 0);
|
||
|
||
elf_section_data (sec)->local_dynrel = NULL;
|
||
|
||
htab = tilepro_elf_hash_table (info);
|
||
BFD_ASSERT (htab != NULL);
|
||
symtab_hdr = &elf_symtab_hdr (abfd);
|
||
sym_hashes = elf_sym_hashes (abfd);
|
||
local_got_refcounts = elf_local_got_refcounts (abfd);
|
||
|
||
relend = relocs + sec->reloc_count;
|
||
for (rel = relocs; rel < relend; rel++)
|
||
{
|
||
unsigned long r_symndx;
|
||
unsigned int r_type;
|
||
struct elf_link_hash_entry *h = NULL;
|
||
|
||
r_symndx = ELF32_R_SYM (rel->r_info);
|
||
if (r_symndx >= symtab_hdr->sh_info)
|
||
{
|
||
struct tilepro_elf_link_hash_entry *eh;
|
||
struct tilepro_elf_dyn_relocs **pp;
|
||
struct tilepro_elf_dyn_relocs *p;
|
||
|
||
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;
|
||
eh = (struct tilepro_elf_link_hash_entry *) h;
|
||
for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
|
||
if (p->sec == sec)
|
||
{
|
||
/* Everything must go for SEC. */
|
||
*pp = p->next;
|
||
break;
|
||
}
|
||
}
|
||
|
||
r_type = ELF32_R_TYPE (rel->r_info);
|
||
r_type = tilepro_elf_tls_transition (info, r_type, h != NULL);
|
||
switch (r_type)
|
||
{
|
||
case R_TILEPRO_IMM16_X0_GOT:
|
||
case R_TILEPRO_IMM16_X1_GOT:
|
||
case R_TILEPRO_IMM16_X0_GOT_LO:
|
||
case R_TILEPRO_IMM16_X1_GOT_LO:
|
||
case R_TILEPRO_IMM16_X0_GOT_HI:
|
||
case R_TILEPRO_IMM16_X1_GOT_HI:
|
||
case R_TILEPRO_IMM16_X0_GOT_HA:
|
||
case R_TILEPRO_IMM16_X1_GOT_HA:
|
||
case R_TILEPRO_IMM16_X0_TLS_GD:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD:
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_LO:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_LO:
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_HI:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_HI:
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_HA:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_HA:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_LO:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_LO:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_HI:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_HI:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_HA:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_HA:
|
||
if (h != NULL)
|
||
{
|
||
if (h->got.refcount > 0)
|
||
h->got.refcount--;
|
||
}
|
||
else
|
||
{
|
||
if (local_got_refcounts &&
|
||
local_got_refcounts[r_symndx] > 0)
|
||
local_got_refcounts[r_symndx]--;
|
||
}
|
||
break;
|
||
|
||
case R_TILEPRO_32_PCREL:
|
||
case R_TILEPRO_16_PCREL:
|
||
case R_TILEPRO_8_PCREL:
|
||
case R_TILEPRO_IMM16_X0_PCREL:
|
||
case R_TILEPRO_IMM16_X1_PCREL:
|
||
case R_TILEPRO_IMM16_X0_LO_PCREL:
|
||
case R_TILEPRO_IMM16_X1_LO_PCREL:
|
||
case R_TILEPRO_IMM16_X0_HI_PCREL:
|
||
case R_TILEPRO_IMM16_X1_HI_PCREL:
|
||
case R_TILEPRO_IMM16_X0_HA_PCREL:
|
||
case R_TILEPRO_IMM16_X1_HA_PCREL:
|
||
if (h != NULL
|
||
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
||
break;
|
||
/* Fall through. */
|
||
|
||
case R_TILEPRO_32:
|
||
case R_TILEPRO_16:
|
||
case R_TILEPRO_8:
|
||
case R_TILEPRO_LO16:
|
||
case R_TILEPRO_HI16:
|
||
case R_TILEPRO_HA16:
|
||
case R_TILEPRO_COPY:
|
||
case R_TILEPRO_GLOB_DAT:
|
||
case R_TILEPRO_JMP_SLOT:
|
||
case R_TILEPRO_RELATIVE:
|
||
case R_TILEPRO_BROFF_X1:
|
||
case R_TILEPRO_JOFFLONG_X1:
|
||
case R_TILEPRO_IMM8_X0:
|
||
case R_TILEPRO_IMM8_Y0:
|
||
case R_TILEPRO_IMM8_X1:
|
||
case R_TILEPRO_IMM8_Y1:
|
||
case R_TILEPRO_DEST_IMM8_X1:
|
||
case R_TILEPRO_MT_IMM15_X1:
|
||
case R_TILEPRO_MF_IMM15_X1:
|
||
case R_TILEPRO_IMM16_X0:
|
||
case R_TILEPRO_IMM16_X1:
|
||
case R_TILEPRO_IMM16_X0_LO:
|
||
case R_TILEPRO_IMM16_X1_LO:
|
||
case R_TILEPRO_IMM16_X0_HI:
|
||
case R_TILEPRO_IMM16_X1_HI:
|
||
case R_TILEPRO_IMM16_X0_HA:
|
||
case R_TILEPRO_IMM16_X1_HA:
|
||
case R_TILEPRO_MMSTART_X0:
|
||
case R_TILEPRO_MMEND_X0:
|
||
case R_TILEPRO_MMSTART_X1:
|
||
case R_TILEPRO_MMEND_X1:
|
||
case R_TILEPRO_SHAMT_X0:
|
||
case R_TILEPRO_SHAMT_X1:
|
||
case R_TILEPRO_SHAMT_Y0:
|
||
case R_TILEPRO_SHAMT_Y1:
|
||
if (bfd_link_pic (info))
|
||
break;
|
||
/* Fall through. */
|
||
|
||
case R_TILEPRO_JOFFLONG_X1_PLT:
|
||
if (h != NULL)
|
||
{
|
||
if (h->plt.refcount > 0)
|
||
h->plt.refcount--;
|
||
}
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Adjust a symbol defined by a dynamic object and referenced by a
|
||
regular object. The current definition is in some section of the
|
||
dynamic object, but we're not including those sections. We have to
|
||
change the definition to something the rest of the link can
|
||
understand. */
|
||
|
||
static bfd_boolean
|
||
tilepro_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
|
||
struct elf_link_hash_entry *h)
|
||
{
|
||
struct tilepro_elf_link_hash_table *htab;
|
||
struct tilepro_elf_link_hash_entry * eh;
|
||
struct tilepro_elf_dyn_relocs *p;
|
||
asection *s, *srel;
|
||
|
||
htab = tilepro_elf_hash_table (info);
|
||
BFD_ASSERT (htab != NULL);
|
||
|
||
/* Make sure we know what is going on here. */
|
||
BFD_ASSERT (htab->elf.dynobj != NULL
|
||
&& (h->needs_plt
|
||
|| h->u.weakdef != NULL
|
||
|| (h->def_dynamic
|
||
&& h->ref_regular
|
||
&& !h->def_regular)));
|
||
|
||
/* If this is a function, put it in the procedure linkage table. We
|
||
will fill in the contents of the procedure linkage table later
|
||
(although we could actually do it here). */
|
||
if (h->type == STT_FUNC || h->needs_plt)
|
||
{
|
||
if (h->plt.refcount <= 0
|
||
|| SYMBOL_CALLS_LOCAL (info, h)
|
||
|| (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
|
||
&& h->root.type == bfd_link_hash_undefweak))
|
||
{
|
||
/* This case can occur if we saw a R_TILEPRO_JOFFLONG_X1_PLT
|
||
reloc in an input file, but the symbol was never referred
|
||
to by a dynamic object, or if all references were garbage
|
||
collected. In such a case, we don't actually need to build
|
||
a procedure linkage table, and we can just do a
|
||
R_TILEPRO_JOFFLONG_X1 relocation instead. */
|
||
h->plt.offset = (bfd_vma) -1;
|
||
h->needs_plt = 0;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
else
|
||
h->plt.offset = (bfd_vma) -1;
|
||
|
||
/* 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->u.weakdef != NULL)
|
||
{
|
||
BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
|
||
|| h->u.weakdef->root.type == bfd_link_hash_defweak);
|
||
h->root.u.def.section = h->u.weakdef->root.u.def.section;
|
||
h->root.u.def.value = h->u.weakdef->root.u.def.value;
|
||
return TRUE;
|
||
}
|
||
|
||
/* This is a reference to a symbol defined by a dynamic object which
|
||
is not a function. */
|
||
|
||
/* If we are creating a shared library, we must presume that the
|
||
only references to the symbol are via the global offset table.
|
||
For such cases we need not do anything here; the relocations will
|
||
be handled correctly by relocate_section. */
|
||
if (bfd_link_pic (info))
|
||
return TRUE;
|
||
|
||
/* If there are no references to this symbol that do not use the
|
||
GOT, we don't need to generate a copy reloc. */
|
||
if (!h->non_got_ref)
|
||
return TRUE;
|
||
|
||
/* If -z nocopyreloc was given, we won't generate them either. */
|
||
if (info->nocopyreloc)
|
||
{
|
||
h->non_got_ref = 0;
|
||
return TRUE;
|
||
}
|
||
|
||
eh = (struct tilepro_elf_link_hash_entry *) h;
|
||
for (p = eh->dyn_relocs; p != NULL; p = p->next)
|
||
{
|
||
s = p->sec->output_section;
|
||
if (s != NULL && (s->flags & SEC_READONLY) != 0)
|
||
break;
|
||
}
|
||
|
||
/* If we didn't find any dynamic relocs in read-only sections, then
|
||
we'll be keeping the dynamic relocs and avoiding the copy reloc. */
|
||
if (p == NULL)
|
||
{
|
||
h->non_got_ref = 0;
|
||
return TRUE;
|
||
}
|
||
|
||
/* We must allocate the symbol in our .dynbss section, which will
|
||
become part of the .bss section of the executable. There will be
|
||
an entry for this symbol in the .dynsym section. The dynamic
|
||
object will contain position independent code, so all references
|
||
from the dynamic object to this symbol will go through the global
|
||
offset table. The dynamic linker will use the .dynsym entry to
|
||
determine the address it must put in the global offset table, so
|
||
both the dynamic object and the regular object will refer to the
|
||
same memory location for the variable. */
|
||
|
||
/* We must generate a R_TILEPRO_COPY reloc to tell the dynamic linker
|
||
to copy the initial value out of the dynamic object and into the
|
||
runtime process image. We need to remember the offset into the
|
||
.rel.bss section we are going to use. */
|
||
if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
|
||
{
|
||
s = htab->elf.sdynrelro;
|
||
srel = htab->elf.sreldynrelro;
|
||
}
|
||
else
|
||
{
|
||
s = htab->elf.sdynbss;
|
||
srel = htab->elf.srelbss;
|
||
}
|
||
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
|
||
{
|
||
srel->size += TILEPRO_ELF_RELA_BYTES;
|
||
h->needs_copy = 1;
|
||
}
|
||
|
||
return _bfd_elf_adjust_dynamic_copy (info, h, s);
|
||
}
|
||
|
||
/* Allocate space in .plt, .got and associated reloc sections for
|
||
dynamic relocs. */
|
||
|
||
static bfd_boolean
|
||
allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
|
||
{
|
||
struct bfd_link_info *info;
|
||
struct tilepro_elf_link_hash_table *htab;
|
||
struct tilepro_elf_link_hash_entry *eh;
|
||
struct tilepro_elf_dyn_relocs *p;
|
||
|
||
if (h->root.type == bfd_link_hash_indirect)
|
||
return TRUE;
|
||
|
||
info = (struct bfd_link_info *) inf;
|
||
htab = tilepro_elf_hash_table (info);
|
||
BFD_ASSERT (htab != NULL);
|
||
|
||
if (htab->elf.dynamic_sections_created
|
||
&& h->plt.refcount > 0)
|
||
{
|
||
/* Make sure this symbol is output as a dynamic symbol.
|
||
Undefined weak syms won't yet be marked as dynamic. */
|
||
if (h->dynindx == -1
|
||
&& !h->forced_local)
|
||
{
|
||
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
||
return FALSE;
|
||
}
|
||
|
||
if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
|
||
{
|
||
asection *s = htab->elf.splt;
|
||
|
||
/* Allocate room for the header. */
|
||
if (s->size == 0)
|
||
{
|
||
s->size = PLT_ENTRY_SIZE;
|
||
}
|
||
|
||
h->plt.offset = s->size;
|
||
|
||
/* If this symbol is not defined in a regular file, and we are
|
||
not generating a shared library, then set the symbol to this
|
||
location in the .plt. This is required to make function
|
||
pointers compare as equal between the normal executable and
|
||
the shared library. */
|
||
if (! bfd_link_pic (info)
|
||
&& !h->def_regular)
|
||
{
|
||
h->root.u.def.section = s;
|
||
h->root.u.def.value = h->plt.offset;
|
||
}
|
||
|
||
/* Make room for this entry. */
|
||
s->size += PLT_ENTRY_SIZE;
|
||
|
||
/* We also need to make an entry in the .got.plt section. */
|
||
htab->elf.sgotplt->size += GOT_ENTRY_SIZE;
|
||
|
||
/* We also need to make an entry in the .rela.plt section. */
|
||
htab->elf.srelplt->size += TILEPRO_ELF_RELA_BYTES;
|
||
}
|
||
else
|
||
{
|
||
h->plt.offset = (bfd_vma) -1;
|
||
h->needs_plt = 0;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
h->plt.offset = (bfd_vma) -1;
|
||
h->needs_plt = 0;
|
||
}
|
||
|
||
/* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
|
||
requiring no TLS entry. */
|
||
if (h->got.refcount > 0
|
||
&& !bfd_link_pic (info)
|
||
&& h->dynindx == -1
|
||
&& tilepro_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
|
||
h->got.offset = (bfd_vma) -1;
|
||
else if (h->got.refcount > 0)
|
||
{
|
||
asection *s;
|
||
bfd_boolean dyn;
|
||
int tls_type = tilepro_elf_hash_entry(h)->tls_type;
|
||
|
||
/* Make sure this symbol is output as a dynamic symbol.
|
||
Undefined weak syms won't yet be marked as dynamic. */
|
||
if (h->dynindx == -1
|
||
&& !h->forced_local)
|
||
{
|
||
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
||
return FALSE;
|
||
}
|
||
|
||
s = htab->elf.sgot;
|
||
h->got.offset = s->size;
|
||
s->size += TILEPRO_BYTES_PER_WORD;
|
||
/* R_TILEPRO_IMM16_Xn_TLS_GD entries need 2 consecutive GOT slots. */
|
||
if (tls_type == GOT_TLS_GD)
|
||
s->size += TILEPRO_BYTES_PER_WORD;
|
||
dyn = htab->elf.dynamic_sections_created;
|
||
/* R_TILEPRO_IMM16_Xn_TLS_IE_xxx needs one dynamic relocation,
|
||
R_TILEPRO_IMM16_Xn_TLS_GD_xxx needs two if local symbol and two if
|
||
global. */
|
||
if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
|
||
htab->elf.srelgot->size += 2 * TILEPRO_ELF_RELA_BYTES;
|
||
else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
|
||
bfd_link_pic (info),
|
||
h))
|
||
htab->elf.srelgot->size += TILEPRO_ELF_RELA_BYTES;
|
||
}
|
||
else
|
||
h->got.offset = (bfd_vma) -1;
|
||
|
||
eh = (struct tilepro_elf_link_hash_entry *) h;
|
||
if (eh->dyn_relocs == NULL)
|
||
return TRUE;
|
||
|
||
/* In the shared -Bsymbolic case, discard space allocated for
|
||
dynamic pc-relative relocs against symbols which turn out to be
|
||
defined in regular objects. For the normal shared case, discard
|
||
space for pc-relative relocs that have become local due to symbol
|
||
visibility changes. */
|
||
|
||
if (bfd_link_pic (info))
|
||
{
|
||
if (SYMBOL_CALLS_LOCAL (info, h))
|
||
{
|
||
struct tilepro_elf_dyn_relocs **pp;
|
||
|
||
for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
|
||
{
|
||
p->count -= p->pc_count;
|
||
p->pc_count = 0;
|
||
if (p->count == 0)
|
||
*pp = p->next;
|
||
else
|
||
pp = &p->next;
|
||
}
|
||
}
|
||
|
||
/* Also discard relocs on undefined weak syms with non-default
|
||
visibility. */
|
||
if (eh->dyn_relocs != NULL
|
||
&& h->root.type == bfd_link_hash_undefweak)
|
||
{
|
||
if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
|
||
eh->dyn_relocs = NULL;
|
||
|
||
/* Make sure undefined weak symbols are output as a dynamic
|
||
symbol in PIEs. */
|
||
else if (h->dynindx == -1
|
||
&& !h->forced_local)
|
||
{
|
||
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
||
return FALSE;
|
||
}
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* For the non-shared case, discard space for relocs against
|
||
symbols which turn out to need copy relocs or are not
|
||
dynamic. */
|
||
|
||
if (!h->non_got_ref
|
||
&& ((h->def_dynamic
|
||
&& !h->def_regular)
|
||
|| (htab->elf.dynamic_sections_created
|
||
&& (h->root.type == bfd_link_hash_undefweak
|
||
|| h->root.type == bfd_link_hash_undefined))))
|
||
{
|
||
/* Make sure this symbol is output as a dynamic symbol.
|
||
Undefined weak syms won't yet be marked as dynamic. */
|
||
if (h->dynindx == -1
|
||
&& !h->forced_local)
|
||
{
|
||
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
||
return FALSE;
|
||
}
|
||
|
||
/* If that succeeded, we know we'll be keeping all the
|
||
relocs. */
|
||
if (h->dynindx != -1)
|
||
goto keep;
|
||
}
|
||
|
||
eh->dyn_relocs = NULL;
|
||
|
||
keep: ;
|
||
}
|
||
|
||
/* Finally, allocate space. */
|
||
for (p = eh->dyn_relocs; p != NULL; p = p->next)
|
||
{
|
||
asection *sreloc = elf_section_data (p->sec)->sreloc;
|
||
sreloc->size += p->count * TILEPRO_ELF_RELA_BYTES;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Find any dynamic relocs that apply to read-only sections. */
|
||
|
||
static bfd_boolean
|
||
readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
|
||
{
|
||
struct tilepro_elf_link_hash_entry *eh;
|
||
struct tilepro_elf_dyn_relocs *p;
|
||
|
||
eh = (struct tilepro_elf_link_hash_entry *) h;
|
||
for (p = eh->dyn_relocs; p != NULL; p = p->next)
|
||
{
|
||
asection *s = p->sec->output_section;
|
||
|
||
if (s != NULL && (s->flags & SEC_READONLY) != 0)
|
||
{
|
||
struct bfd_link_info *info = (struct bfd_link_info *) inf;
|
||
|
||
info->flags |= DF_TEXTREL;
|
||
|
||
/* Not an error, just cut short the traversal. */
|
||
return FALSE;
|
||
}
|
||
}
|
||
return TRUE;
|
||
}
|
||
|
||
/* Return true if the dynamic symbol for a given section should be
|
||
omitted when creating a shared library. */
|
||
|
||
static bfd_boolean
|
||
tilepro_elf_omit_section_dynsym (bfd *output_bfd,
|
||
struct bfd_link_info *info,
|
||
asection *p)
|
||
{
|
||
/* We keep the .got section symbol so that explicit relocations
|
||
against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
|
||
can be turned into relocations against the .got symbol. */
|
||
if (strcmp (p->name, ".got") == 0)
|
||
return FALSE;
|
||
|
||
return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
|
||
}
|
||
|
||
/* Set the sizes of the dynamic sections. */
|
||
|
||
#define ELF32_DYNAMIC_INTERPRETER "/lib/ld.so.1"
|
||
|
||
static bfd_boolean
|
||
tilepro_elf_size_dynamic_sections (bfd *output_bfd,
|
||
struct bfd_link_info *info)
|
||
{
|
||
(void)output_bfd;
|
||
|
||
struct tilepro_elf_link_hash_table *htab;
|
||
bfd *dynobj;
|
||
asection *s;
|
||
bfd *ibfd;
|
||
|
||
htab = tilepro_elf_hash_table (info);
|
||
BFD_ASSERT (htab != NULL);
|
||
dynobj = htab->elf.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 ELF32_DYNAMIC_INTERPRETER;
|
||
s->contents = (unsigned char *) ELF32_DYNAMIC_INTERPRETER;
|
||
}
|
||
}
|
||
|
||
/* Set up .got offsets for local syms, and space for local dynamic
|
||
relocs. */
|
||
for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
|
||
{
|
||
bfd_signed_vma *local_got;
|
||
bfd_signed_vma *end_local_got;
|
||
char *local_tls_type;
|
||
bfd_size_type locsymcount;
|
||
Elf_Internal_Shdr *symtab_hdr;
|
||
asection *srel;
|
||
|
||
if (! is_tilepro_elf (ibfd))
|
||
continue;
|
||
|
||
for (s = ibfd->sections; s != NULL; s = s->next)
|
||
{
|
||
struct tilepro_elf_dyn_relocs *p;
|
||
|
||
for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
|
||
{
|
||
if (!bfd_is_abs_section (p->sec)
|
||
&& bfd_is_abs_section (p->sec->output_section))
|
||
{
|
||
/* Input section has been discarded, either because
|
||
it is a copy of a linkonce section or due to
|
||
linker script /DISCARD/, so we'll be discarding
|
||
the relocs too. */
|
||
}
|
||
else if (p->count != 0)
|
||
{
|
||
srel = elf_section_data (p->sec)->sreloc;
|
||
srel->size += p->count * TILEPRO_ELF_RELA_BYTES;
|
||
if ((p->sec->output_section->flags & SEC_READONLY) != 0)
|
||
info->flags |= DF_TEXTREL;
|
||
}
|
||
}
|
||
}
|
||
|
||
local_got = elf_local_got_refcounts (ibfd);
|
||
if (!local_got)
|
||
continue;
|
||
|
||
symtab_hdr = &elf_symtab_hdr (ibfd);
|
||
locsymcount = symtab_hdr->sh_info;
|
||
end_local_got = local_got + locsymcount;
|
||
local_tls_type = _bfd_tilepro_elf_local_got_tls_type (ibfd);
|
||
s = htab->elf.sgot;
|
||
srel = htab->elf.srelgot;
|
||
for (; local_got < end_local_got; ++local_got, ++local_tls_type)
|
||
{
|
||
if (*local_got > 0)
|
||
{
|
||
*local_got = s->size;
|
||
s->size += TILEPRO_BYTES_PER_WORD;
|
||
if (*local_tls_type == GOT_TLS_GD)
|
||
s->size += TILEPRO_BYTES_PER_WORD;
|
||
if (bfd_link_pic (info)
|
||
|| *local_tls_type == GOT_TLS_GD
|
||
|| *local_tls_type == GOT_TLS_IE)
|
||
srel->size += TILEPRO_ELF_RELA_BYTES;
|
||
}
|
||
else
|
||
*local_got = (bfd_vma) -1;
|
||
}
|
||
}
|
||
|
||
/* Allocate global sym .plt and .got entries, and space for global
|
||
sym dynamic relocs. */
|
||
elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
|
||
|
||
if (elf_hash_table (info)->dynamic_sections_created)
|
||
{
|
||
/* If the .got section is more than 0x8000 bytes, we add
|
||
0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
|
||
bit relocations have a greater chance of working. */
|
||
if (htab->elf.sgot->size >= 0x8000
|
||
&& elf_hash_table (info)->hgot->root.u.def.value == 0)
|
||
elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
|
||
}
|
||
|
||
if (htab->elf.sgotplt)
|
||
{
|
||
struct elf_link_hash_entry *got;
|
||
got = elf_link_hash_lookup (elf_hash_table (info),
|
||
"_GLOBAL_OFFSET_TABLE_",
|
||
FALSE, FALSE, FALSE);
|
||
|
||
/* Don't allocate .got.plt section if there are no GOT nor PLT
|
||
entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
|
||
if ((got == NULL
|
||
|| !got->ref_regular_nonweak)
|
||
&& (htab->elf.sgotplt->size
|
||
== GOTPLT_HEADER_SIZE)
|
||
&& (htab->elf.splt == NULL
|
||
|| htab->elf.splt->size == 0)
|
||
&& (htab->elf.sgot == NULL
|
||
|| (htab->elf.sgot->size
|
||
== get_elf_backend_data (output_bfd)->got_header_size)))
|
||
htab->elf.sgotplt->size = 0;
|
||
}
|
||
|
||
/* The check_relocs and adjust_dynamic_symbol entry points have
|
||
determined the sizes of the various dynamic sections. Allocate
|
||
memory for them. */
|
||
for (s = dynobj->sections; s != NULL; s = s->next)
|
||
{
|
||
if ((s->flags & SEC_LINKER_CREATED) == 0)
|
||
continue;
|
||
|
||
if (s == htab->elf.splt
|
||
|| s == htab->elf.sgot
|
||
|| s == htab->elf.sgotplt
|
||
|| s == htab->elf.sdynbss
|
||
|| s == htab->elf.sdynrelro)
|
||
{
|
||
/* Strip this section if we don't need it; see the
|
||
comment below. */
|
||
}
|
||
else if (strncmp (s->name, ".rela", 5) == 0)
|
||
{
|
||
if (s->size != 0)
|
||
{
|
||
/* We use the reloc_count field as a counter if we need
|
||
to copy relocs into the output file. */
|
||
s->reloc_count = 0;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* It's not one of our sections. */
|
||
continue;
|
||
}
|
||
|
||
if (s->size == 0)
|
||
{
|
||
/* If we don't need this section, strip it from the
|
||
output file. This is mostly to handle .rela.bss and
|
||
.rela.plt. We must create both sections in
|
||
create_dynamic_sections, because they must be created
|
||
before the linker maps input sections to output
|
||
sections. The linker does that before
|
||
adjust_dynamic_symbol is called, and it is that
|
||
function which decides whether anything needs to go
|
||
into these sections. */
|
||
s->flags |= SEC_EXCLUDE;
|
||
continue;
|
||
}
|
||
|
||
if ((s->flags & SEC_HAS_CONTENTS) == 0)
|
||
continue;
|
||
|
||
/* Allocate memory for the section contents. Zero the memory
|
||
for the benefit of .rela.plt, which has 4 unused entries
|
||
at the beginning, and we don't want garbage. */
|
||
s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
|
||
if (s->contents == NULL)
|
||
return FALSE;
|
||
}
|
||
|
||
if (elf_hash_table (info)->dynamic_sections_created)
|
||
{
|
||
/* Add some entries to the .dynamic section. We fill in the
|
||
values later, in tilepro_elf_finish_dynamic_sections, but we
|
||
must add the entries now so that we get the correct size for
|
||
the .dynamic section. The DT_DEBUG entry is filled in by the
|
||
dynamic linker and used by the debugger. */
|
||
#define add_dynamic_entry(TAG, VAL) \
|
||
_bfd_elf_add_dynamic_entry (info, TAG, VAL)
|
||
|
||
if (bfd_link_executable (info))
|
||
{
|
||
if (!add_dynamic_entry (DT_DEBUG, 0))
|
||
return FALSE;
|
||
}
|
||
|
||
if (htab->elf.srelplt->size != 0)
|
||
{
|
||
if (!add_dynamic_entry (DT_PLTGOT, 0)
|
||
|| !add_dynamic_entry (DT_PLTRELSZ, 0)
|
||
|| !add_dynamic_entry (DT_PLTREL, DT_RELA)
|
||
|| !add_dynamic_entry (DT_JMPREL, 0))
|
||
return FALSE;
|
||
}
|
||
|
||
if (!add_dynamic_entry (DT_RELA, 0)
|
||
|| !add_dynamic_entry (DT_RELASZ, 0)
|
||
|| !add_dynamic_entry (DT_RELAENT, TILEPRO_ELF_RELA_BYTES))
|
||
return FALSE;
|
||
|
||
/* If any dynamic relocs apply to a read-only section,
|
||
then we need a DT_TEXTREL entry. */
|
||
if ((info->flags & DF_TEXTREL) == 0)
|
||
elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
|
||
|
||
if (info->flags & DF_TEXTREL)
|
||
{
|
||
if (!add_dynamic_entry (DT_TEXTREL, 0))
|
||
return FALSE;
|
||
}
|
||
}
|
||
#undef add_dynamic_entry
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Return the base VMA address which should be subtracted from real addresses
|
||
when resolving @dtpoff relocation.
|
||
This is PT_TLS segment p_vaddr. */
|
||
|
||
static bfd_vma
|
||
dtpoff_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 0;
|
||
return elf_hash_table (info)->tls_sec->vma;
|
||
}
|
||
|
||
/* Return the relocation value for R_TILEPRO_TLS_TPOFF32. */
|
||
|
||
static bfd_vma
|
||
tpoff (struct bfd_link_info *info, bfd_vma address)
|
||
{
|
||
struct elf_link_hash_table *htab = elf_hash_table (info);
|
||
|
||
/* If tls_sec is NULL, we should have signalled an error already. */
|
||
if (htab->tls_sec == NULL)
|
||
return 0;
|
||
|
||
return (address - htab->tls_sec->vma);
|
||
}
|
||
|
||
/* Replace the MASK bits in ADDR with those in INSN, for the next
|
||
TILEPRO_BUNDLE_SIZE_IN_BYTES bytes. */
|
||
|
||
static void
|
||
tilepro_replace_insn (bfd_byte *addr, const bfd_byte *mask,
|
||
const bfd_byte *insn)
|
||
{
|
||
int i;
|
||
for (i = 0; i < TILEPRO_BUNDLE_SIZE_IN_BYTES; i++)
|
||
{
|
||
addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
|
||
}
|
||
}
|
||
|
||
/* Mask to extract the bits corresponding to an instruction in a
|
||
specific pipe of a bundle. */
|
||
static const bfd_byte insn_mask_X1[] = {
|
||
0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x7f
|
||
};
|
||
|
||
/* Mask to extract the bits corresponding to an instruction in a
|
||
specific pipe of a bundle, minus the destination operand and the
|
||
first source operand. */
|
||
static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
|
||
0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
|
||
};
|
||
|
||
static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
|
||
0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x7f
|
||
};
|
||
|
||
static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
|
||
0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
|
||
};
|
||
|
||
static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
|
||
0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x78
|
||
};
|
||
|
||
/* Mask to extract the first source operand of an instruction. */
|
||
static const bfd_byte srca_mask_X0[] = {
|
||
0xc0, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
|
||
};
|
||
|
||
static const bfd_byte srca_mask_X1[] = {
|
||
0x00, 0x00, 0x00, 0x00, 0xe0, 0x07, 0x00, 0x00
|
||
};
|
||
|
||
/* Various instructions synthesized to support tls references. */
|
||
|
||
/* move r0, r0 in the X1 pipe, used for tls le. */
|
||
static const bfd_byte insn_tls_le_move_X1[] = {
|
||
0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x33, 0x08
|
||
};
|
||
|
||
/* move r0, zero in the X0 and X1 pipe, used for tls le. */
|
||
static const bfd_byte insn_tls_le_move_zero_X0X1[] = {
|
||
0xc0, 0xff, 0xcf, 0x00, 0xe0, 0xff, 0x33, 0x08
|
||
};
|
||
|
||
/* lw r0, r0 in the X1 pipe, used for tls ie. */
|
||
static const bfd_byte insn_tls_ie_lw_X1[] = {
|
||
0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x0b, 0x40
|
||
};
|
||
|
||
/* add r0, r0, tp in various pipes, used for tls ie. */
|
||
static const bfd_byte insn_tls_ie_add_X0X1[] = {
|
||
0x00, 0x50, 0x0f, 0x00, 0x00, 0xa8, 0x07, 0x08
|
||
};
|
||
static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
|
||
0x00, 0x50, 0x03, 0x08, 0x00, 0xa8, 0x01, 0x8c
|
||
};
|
||
|
||
/* move r0, r0 in various pipes, used for tls gd. */
|
||
static const bfd_byte insn_tls_gd_add_X0X1[] = {
|
||
0x00, 0xf0, 0xcf, 0x00, 0x00, 0xf8, 0x33, 0x08
|
||
};
|
||
static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
|
||
0x00, 0xf0, 0x0b, 0x18, 0x00, 0xf8, 0x05, 0x9c
|
||
};
|
||
|
||
/* Relocate an TILEPRO 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.
|
||
|
||
This function is responsible for adjusting the section contents as
|
||
necessary, and (if generating a relocatable output file) adjusting
|
||
the reloc addend as necessary.
|
||
|
||
This function does not have to worry about setting the reloc
|
||
address or the reloc symbol index.
|
||
|
||
LOCAL_SYMS is a pointer to the swapped in local symbols.
|
||
|
||
LOCAL_SECTIONS is an array giving the section in the input file
|
||
corresponding to the st_shndx field of each local symbol.
|
||
|
||
The global hash table entry for the global symbols can be found
|
||
via elf_sym_hashes (input_bfd).
|
||
|
||
When generating relocatable output, this function must handle
|
||
STB_LOCAL/STT_SECTION symbols specially. The output symbol is
|
||
going to be the section symbol corresponding to the output
|
||
section, which means that the addend must be adjusted
|
||
accordingly. */
|
||
|
||
static bfd_boolean
|
||
tilepro_elf_relocate_section (bfd *output_bfd, 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)
|
||
{
|
||
struct tilepro_elf_link_hash_table *htab;
|
||
Elf_Internal_Shdr *symtab_hdr;
|
||
struct elf_link_hash_entry **sym_hashes;
|
||
bfd_vma *local_got_offsets;
|
||
bfd_vma got_base;
|
||
asection *sreloc;
|
||
Elf_Internal_Rela *rel;
|
||
Elf_Internal_Rela *relend;
|
||
int num_relocs;
|
||
|
||
htab = tilepro_elf_hash_table (info);
|
||
BFD_ASSERT (htab != NULL);
|
||
symtab_hdr = &elf_symtab_hdr (input_bfd);
|
||
sym_hashes = elf_sym_hashes (input_bfd);
|
||
local_got_offsets = elf_local_got_offsets (input_bfd);
|
||
|
||
if (elf_hash_table (info)->hgot == NULL)
|
||
got_base = 0;
|
||
else
|
||
got_base = elf_hash_table (info)->hgot->root.u.def.value;
|
||
|
||
sreloc = elf_section_data (input_section)->sreloc;
|
||
|
||
rel = relocs;
|
||
num_relocs = input_section->reloc_count;
|
||
relend = relocs + num_relocs;
|
||
for (; rel < relend; rel++)
|
||
{
|
||
int r_type, tls_type;
|
||
bfd_boolean is_tls_iele, is_tls_le;
|
||
reloc_howto_type *howto;
|
||
unsigned long r_symndx;
|
||
struct elf_link_hash_entry *h;
|
||
Elf_Internal_Sym *sym;
|
||
tilepro_create_func create_func;
|
||
asection *sec;
|
||
bfd_vma relocation;
|
||
bfd_reloc_status_type r;
|
||
const char *name;
|
||
bfd_vma off;
|
||
bfd_boolean is_plt = FALSE;
|
||
|
||
bfd_boolean unresolved_reloc;
|
||
|
||
r_type = ELF32_R_TYPE (rel->r_info);
|
||
if (r_type == R_TILEPRO_GNU_VTINHERIT
|
||
|| r_type == R_TILEPRO_GNU_VTENTRY)
|
||
continue;
|
||
|
||
if ((unsigned int)r_type >= NELEMS(tilepro_elf_howto_table))
|
||
{
|
||
/* Not clear if we need to check here, but just be paranoid. */
|
||
_bfd_error_handler
|
||
/* xgettext:c-format */
|
||
(_("%B: unrecognized relocation (0x%x) in section `%A'"),
|
||
input_bfd, r_type, input_section);
|
||
bfd_set_error (bfd_error_bad_value);
|
||
return FALSE;
|
||
}
|
||
|
||
howto = tilepro_elf_howto_table + r_type;
|
||
|
||
/* This is a final link. */
|
||
r_symndx = ELF32_R_SYM (rel->r_info);
|
||
h = NULL;
|
||
sym = NULL;
|
||
sec = NULL;
|
||
unresolved_reloc = FALSE;
|
||
if (r_symndx < symtab_hdr->sh_info)
|
||
{
|
||
sym = local_syms + r_symndx;
|
||
sec = local_sections[r_symndx];
|
||
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
|
||
}
|
||
else
|
||
{
|
||
bfd_boolean warned ATTRIBUTE_UNUSED;
|
||
bfd_boolean ignored ATTRIBUTE_UNUSED;
|
||
|
||
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
|
||
r_symndx, symtab_hdr, sym_hashes,
|
||
h, sec, relocation,
|
||
unresolved_reloc, warned, ignored);
|
||
if (warned)
|
||
{
|
||
/* To avoid generating warning messages about truncated
|
||
relocations, set the relocation's address to be the same as
|
||
the start of this section. */
|
||
if (input_section->output_section != NULL)
|
||
relocation = input_section->output_section->vma;
|
||
else
|
||
relocation = 0;
|
||
}
|
||
}
|
||
|
||
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 (h != NULL)
|
||
name = h->root.root.string;
|
||
else
|
||
{
|
||
name = (bfd_elf_string_from_elf_section
|
||
(input_bfd, symtab_hdr->sh_link, sym->st_name));
|
||
if (name == NULL || *name == '\0')
|
||
name = bfd_section_name (input_bfd, sec);
|
||
}
|
||
|
||
switch (r_type)
|
||
{
|
||
case R_TILEPRO_TLS_GD_CALL:
|
||
case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
|
||
case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
|
||
case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
|
||
case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_HA:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_HA:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_HA:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_HA:
|
||
tls_type = GOT_UNKNOWN;
|
||
if (h == NULL && local_got_offsets)
|
||
tls_type =
|
||
_bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
|
||
else if (h != NULL)
|
||
tls_type = tilepro_elf_hash_entry(h)->tls_type;
|
||
|
||
is_tls_iele = (! bfd_link_pic (info) || tls_type == GOT_TLS_IE);
|
||
is_tls_le = is_tls_iele && (!bfd_link_pic (info)
|
||
&& (h == NULL || h->dynindx == -1));
|
||
|
||
if (r_type == R_TILEPRO_TLS_GD_CALL)
|
||
{
|
||
if (is_tls_le)
|
||
{
|
||
/* GD -> LE */
|
||
tilepro_replace_insn (contents + rel->r_offset,
|
||
insn_mask_X1, insn_tls_le_move_X1);
|
||
continue;
|
||
}
|
||
else if (is_tls_iele)
|
||
{
|
||
/* GD -> IE */
|
||
tilepro_replace_insn (contents + rel->r_offset,
|
||
insn_mask_X1, insn_tls_ie_lw_X1);
|
||
continue;
|
||
}
|
||
|
||
/* GD -> GD */
|
||
h = (struct elf_link_hash_entry *)
|
||
bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
|
||
FALSE, TRUE);
|
||
BFD_ASSERT (h != NULL);
|
||
r_type = R_TILEPRO_JOFFLONG_X1_PLT;
|
||
howto = tilepro_elf_howto_table + r_type;
|
||
}
|
||
else if (r_type == R_TILEPRO_IMM16_X0_TLS_GD_HA
|
||
|| r_type == R_TILEPRO_IMM16_X0_TLS_IE_HA)
|
||
{
|
||
if (is_tls_le)
|
||
tilepro_replace_insn (contents + rel->r_offset, srca_mask_X0,
|
||
insn_tls_le_move_zero_X0X1);
|
||
}
|
||
else if (r_type == R_TILEPRO_IMM16_X1_TLS_GD_HA
|
||
|| r_type == R_TILEPRO_IMM16_X1_TLS_IE_HA)
|
||
{
|
||
if (is_tls_le)
|
||
tilepro_replace_insn (contents + rel->r_offset, srca_mask_X1,
|
||
insn_tls_le_move_zero_X0X1);
|
||
}
|
||
else
|
||
{
|
||
const bfd_byte *mask = NULL;
|
||
const bfd_byte *add_insn = NULL;
|
||
|
||
switch (r_type)
|
||
{
|
||
case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
|
||
add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
|
||
: insn_tls_gd_add_X0X1;
|
||
mask = insn_mask_X0_no_dest_no_srca;
|
||
break;
|
||
case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
|
||
add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
|
||
: insn_tls_gd_add_X0X1;
|
||
mask = insn_mask_X1_no_dest_no_srca;
|
||
break;
|
||
case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
|
||
add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
|
||
: insn_tls_gd_add_Y0Y1;
|
||
mask = insn_mask_Y0_no_dest_no_srca;
|
||
break;
|
||
case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
|
||
add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
|
||
: insn_tls_gd_add_Y0Y1;
|
||
mask = insn_mask_Y1_no_dest_no_srca;
|
||
break;
|
||
}
|
||
|
||
tilepro_replace_insn (contents + rel->r_offset, mask, add_insn);
|
||
|
||
continue;
|
||
}
|
||
break;
|
||
case R_TILEPRO_TLS_IE_LOAD:
|
||
if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
|
||
/* IE -> LE */
|
||
tilepro_replace_insn (contents + rel->r_offset,
|
||
insn_mask_X1_no_dest_no_srca,
|
||
insn_tls_le_move_X1);
|
||
else
|
||
/* IE -> IE */
|
||
tilepro_replace_insn (contents + rel->r_offset,
|
||
insn_mask_X1_no_dest_no_srca,
|
||
insn_tls_ie_lw_X1);
|
||
continue;
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
switch (r_type)
|
||
{
|
||
case R_TILEPRO_IMM16_X0_GOT:
|
||
case R_TILEPRO_IMM16_X1_GOT:
|
||
case R_TILEPRO_IMM16_X0_GOT_LO:
|
||
case R_TILEPRO_IMM16_X1_GOT_LO:
|
||
case R_TILEPRO_IMM16_X0_GOT_HI:
|
||
case R_TILEPRO_IMM16_X1_GOT_HI:
|
||
case R_TILEPRO_IMM16_X0_GOT_HA:
|
||
case R_TILEPRO_IMM16_X1_GOT_HA:
|
||
/* Relocation is to the entry for this symbol in the global
|
||
offset table. */
|
||
if (htab->elf.sgot == NULL)
|
||
abort ();
|
||
|
||
if (h != NULL)
|
||
{
|
||
bfd_boolean dyn;
|
||
|
||
off = h->got.offset;
|
||
BFD_ASSERT (off != (bfd_vma) -1);
|
||
dyn = elf_hash_table (info)->dynamic_sections_created;
|
||
|
||
if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
|
||
bfd_link_pic (info),
|
||
h)
|
||
|| (bfd_link_pic (info)
|
||
&& SYMBOL_REFERENCES_LOCAL (info, h)))
|
||
{
|
||
/* This is actually a static link, or it is a
|
||
-Bsymbolic link and the symbol is defined
|
||
locally, or the symbol was forced to be local
|
||
because of a version file. We must initialize
|
||
this entry in the global offset table. Since the
|
||
offset must always be a multiple
|
||
of 4 for 32-bit, we use the least significant bit
|
||
to record whether we have initialized it already.
|
||
|
||
When doing a dynamic link, we create a .rela.got
|
||
relocation entry to initialize the value. This
|
||
is done in the finish_dynamic_symbol routine. */
|
||
if ((off & 1) != 0)
|
||
off &= ~1;
|
||
else
|
||
{
|
||
bfd_put_32 (output_bfd, relocation,
|
||
htab->elf.sgot->contents + off);
|
||
h->got.offset |= 1;
|
||
}
|
||
}
|
||
else
|
||
unresolved_reloc = FALSE;
|
||
}
|
||
else
|
||
{
|
||
BFD_ASSERT (local_got_offsets != NULL
|
||
&& local_got_offsets[r_symndx] != (bfd_vma) -1);
|
||
|
||
off = local_got_offsets[r_symndx];
|
||
|
||
/* The offset must always be a multiple of 4 on 32-bit.
|
||
We use the least significant bit to record
|
||
whether we have already processed this entry. */
|
||
if ((off & 1) != 0)
|
||
off &= ~1;
|
||
else
|
||
{
|
||
if (bfd_link_pic (info))
|
||
{
|
||
asection *s;
|
||
Elf_Internal_Rela outrel;
|
||
|
||
/* We need to generate a R_TILEPRO_RELATIVE reloc
|
||
for the dynamic linker. */
|
||
s = htab->elf.srelgot;
|
||
BFD_ASSERT (s != NULL);
|
||
|
||
outrel.r_offset = (htab->elf.sgot->output_section->vma
|
||
+ htab->elf.sgot->output_offset
|
||
+ off);
|
||
outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
|
||
outrel.r_addend = relocation;
|
||
relocation = 0;
|
||
tilepro_elf_append_rela_32 (output_bfd, s, &outrel);
|
||
}
|
||
|
||
bfd_put_32 (output_bfd, relocation,
|
||
htab->elf.sgot->contents + off);
|
||
local_got_offsets[r_symndx] |= 1;
|
||
}
|
||
}
|
||
relocation = off - got_base;
|
||
break;
|
||
|
||
case R_TILEPRO_JOFFLONG_X1_PLT:
|
||
/* Relocation is to the entry for this symbol in the
|
||
procedure linkage table. */
|
||
BFD_ASSERT (h != NULL);
|
||
|
||
if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
|
||
{
|
||
/* We didn't make a PLT entry for this symbol. This
|
||
happens when statically linking PIC code, or when
|
||
using -Bsymbolic. */
|
||
break;
|
||
}
|
||
|
||
relocation = (htab->elf.splt->output_section->vma
|
||
+ htab->elf.splt->output_offset
|
||
+ h->plt.offset);
|
||
unresolved_reloc = FALSE;
|
||
break;
|
||
|
||
case R_TILEPRO_32_PCREL:
|
||
case R_TILEPRO_16_PCREL:
|
||
case R_TILEPRO_8_PCREL:
|
||
case R_TILEPRO_IMM16_X0_PCREL:
|
||
case R_TILEPRO_IMM16_X1_PCREL:
|
||
case R_TILEPRO_IMM16_X0_LO_PCREL:
|
||
case R_TILEPRO_IMM16_X1_LO_PCREL:
|
||
case R_TILEPRO_IMM16_X0_HI_PCREL:
|
||
case R_TILEPRO_IMM16_X1_HI_PCREL:
|
||
case R_TILEPRO_IMM16_X0_HA_PCREL:
|
||
case R_TILEPRO_IMM16_X1_HA_PCREL:
|
||
if (h != NULL
|
||
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
||
break;
|
||
/* Fall through. */
|
||
case R_TILEPRO_32:
|
||
case R_TILEPRO_16:
|
||
case R_TILEPRO_8:
|
||
case R_TILEPRO_LO16:
|
||
case R_TILEPRO_HI16:
|
||
case R_TILEPRO_HA16:
|
||
case R_TILEPRO_COPY:
|
||
case R_TILEPRO_GLOB_DAT:
|
||
case R_TILEPRO_JMP_SLOT:
|
||
case R_TILEPRO_RELATIVE:
|
||
case R_TILEPRO_BROFF_X1:
|
||
case R_TILEPRO_JOFFLONG_X1:
|
||
case R_TILEPRO_IMM8_X0:
|
||
case R_TILEPRO_IMM8_Y0:
|
||
case R_TILEPRO_IMM8_X1:
|
||
case R_TILEPRO_IMM8_Y1:
|
||
case R_TILEPRO_DEST_IMM8_X1:
|
||
case R_TILEPRO_MT_IMM15_X1:
|
||
case R_TILEPRO_MF_IMM15_X1:
|
||
case R_TILEPRO_IMM16_X0:
|
||
case R_TILEPRO_IMM16_X1:
|
||
case R_TILEPRO_IMM16_X0_LO:
|
||
case R_TILEPRO_IMM16_X1_LO:
|
||
case R_TILEPRO_IMM16_X0_HI:
|
||
case R_TILEPRO_IMM16_X1_HI:
|
||
case R_TILEPRO_IMM16_X0_HA:
|
||
case R_TILEPRO_IMM16_X1_HA:
|
||
case R_TILEPRO_MMSTART_X0:
|
||
case R_TILEPRO_MMEND_X0:
|
||
case R_TILEPRO_MMSTART_X1:
|
||
case R_TILEPRO_MMEND_X1:
|
||
case R_TILEPRO_SHAMT_X0:
|
||
case R_TILEPRO_SHAMT_X1:
|
||
case R_TILEPRO_SHAMT_Y0:
|
||
case R_TILEPRO_SHAMT_Y1:
|
||
if ((input_section->flags & SEC_ALLOC) == 0)
|
||
break;
|
||
|
||
if ((bfd_link_pic (info)
|
||
&& (h == NULL
|
||
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|
||
|| h->root.type != bfd_link_hash_undefweak)
|
||
&& (! howto->pc_relative
|
||
|| !SYMBOL_CALLS_LOCAL (info, h)))
|
||
|| (!bfd_link_pic (info)
|
||
&& h != NULL
|
||
&& h->dynindx != -1
|
||
&& !h->non_got_ref
|
||
&& ((h->def_dynamic
|
||
&& !h->def_regular)
|
||
|| h->root.type == bfd_link_hash_undefweak
|
||
|| h->root.type == bfd_link_hash_undefined)))
|
||
{
|
||
Elf_Internal_Rela outrel;
|
||
bfd_boolean skip, relocate = FALSE;
|
||
|
||
/* When generating a shared object, these relocations
|
||
are copied into the output file to be resolved at run
|
||
time. */
|
||
|
||
BFD_ASSERT (sreloc != NULL);
|
||
|
||
skip = FALSE;
|
||
|
||
outrel.r_offset =
|
||
_bfd_elf_section_offset (output_bfd, info, input_section,
|
||
rel->r_offset);
|
||
if (outrel.r_offset == (bfd_vma) -1)
|
||
skip = TRUE;
|
||
else if (outrel.r_offset == (bfd_vma) -2)
|
||
skip = TRUE, relocate = TRUE;
|
||
outrel.r_offset += (input_section->output_section->vma
|
||
+ input_section->output_offset);
|
||
|
||
switch (r_type)
|
||
{
|
||
case R_TILEPRO_32_PCREL:
|
||
case R_TILEPRO_16_PCREL:
|
||
case R_TILEPRO_8_PCREL:
|
||
/* If the symbol is not dynamic, we should not keep
|
||
a dynamic relocation. But an .rela.* slot has been
|
||
allocated for it, output R_TILEPRO_NONE.
|
||
FIXME: Add code tracking needed dynamic relocs as
|
||
e.g. i386 has. */
|
||
if (h->dynindx == -1)
|
||
skip = TRUE, relocate = TRUE;
|
||
break;
|
||
}
|
||
|
||
if (skip)
|
||
memset (&outrel, 0, sizeof outrel);
|
||
/* h->dynindx may be -1 if the symbol was marked to
|
||
become local. */
|
||
else if (h != NULL &&
|
||
h->dynindx != -1
|
||
&& (! is_plt
|
||
|| !bfd_link_pic (info)
|
||
|| !SYMBOLIC_BIND (info, h)
|
||
|| !h->def_regular))
|
||
{
|
||
BFD_ASSERT (h->dynindx != -1);
|
||
outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
|
||
outrel.r_addend = rel->r_addend;
|
||
}
|
||
else
|
||
{
|
||
if (r_type == R_TILEPRO_32)
|
||
{
|
||
outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
|
||
outrel.r_addend = relocation + rel->r_addend;
|
||
}
|
||
else
|
||
{
|
||
long indx;
|
||
|
||
outrel.r_addend = relocation + rel->r_addend;
|
||
|
||
if (is_plt)
|
||
sec = htab->elf.splt;
|
||
|
||
if (bfd_is_abs_section (sec))
|
||
indx = 0;
|
||
else if (sec == NULL || sec->owner == NULL)
|
||
{
|
||
bfd_set_error (bfd_error_bad_value);
|
||
return FALSE;
|
||
}
|
||
else
|
||
{
|
||
asection *osec;
|
||
|
||
/* We are turning this relocation into one
|
||
against a section symbol. It would be
|
||
proper to subtract the symbol's value,
|
||
osec->vma, from the emitted reloc addend,
|
||
but ld.so expects buggy relocs. */
|
||
osec = sec->output_section;
|
||
indx = elf_section_data (osec)->dynindx;
|
||
|
||
if (indx == 0)
|
||
{
|
||
osec = htab->elf.text_index_section;
|
||
indx = elf_section_data (osec)->dynindx;
|
||
}
|
||
|
||
/* FIXME: we really should be able to link non-pic
|
||
shared libraries. */
|
||
if (indx == 0)
|
||
{
|
||
BFD_FAIL ();
|
||
_bfd_error_handler
|
||
(_("%B: probably compiled without -fPIC?"),
|
||
input_bfd);
|
||
bfd_set_error (bfd_error_bad_value);
|
||
return FALSE;
|
||
}
|
||
}
|
||
|
||
outrel.r_info = ELF32_R_INFO (indx, r_type);
|
||
}
|
||
}
|
||
|
||
tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
|
||
|
||
/* This reloc will be computed at runtime, so there's no
|
||
need to do anything now. */
|
||
if (! relocate)
|
||
continue;
|
||
}
|
||
break;
|
||
|
||
case R_TILEPRO_IMM16_X0_TLS_LE:
|
||
case R_TILEPRO_IMM16_X1_TLS_LE:
|
||
case R_TILEPRO_IMM16_X0_TLS_LE_LO:
|
||
case R_TILEPRO_IMM16_X1_TLS_LE_LO:
|
||
case R_TILEPRO_IMM16_X0_TLS_LE_HI:
|
||
case R_TILEPRO_IMM16_X1_TLS_LE_HI:
|
||
case R_TILEPRO_IMM16_X0_TLS_LE_HA:
|
||
case R_TILEPRO_IMM16_X1_TLS_LE_HA:
|
||
if (bfd_link_pic (info))
|
||
{
|
||
Elf_Internal_Rela outrel;
|
||
bfd_boolean skip;
|
||
|
||
BFD_ASSERT (sreloc != NULL);
|
||
skip = FALSE;
|
||
outrel.r_offset =
|
||
_bfd_elf_section_offset (output_bfd, info, input_section,
|
||
rel->r_offset);
|
||
if (outrel.r_offset == (bfd_vma) -1)
|
||
skip = TRUE;
|
||
else if (outrel.r_offset == (bfd_vma) -2)
|
||
skip = TRUE;
|
||
outrel.r_offset += (input_section->output_section->vma
|
||
+ input_section->output_offset);
|
||
if (skip)
|
||
memset (&outrel, 0, sizeof outrel);
|
||
else
|
||
{
|
||
outrel.r_info = ELF32_R_INFO (0, r_type);
|
||
outrel.r_addend = relocation - dtpoff_base (info)
|
||
+ rel->r_addend;
|
||
}
|
||
|
||
tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
|
||
continue;
|
||
}
|
||
relocation = tpoff (info, relocation);
|
||
break;
|
||
|
||
case R_TILEPRO_IMM16_X0_TLS_GD:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD:
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_LO:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_LO:
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_HI:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_HI:
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_HA:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_HA:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_LO:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_LO:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_HI:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_HI:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_HA:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_HA:
|
||
r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
|
||
tls_type = GOT_UNKNOWN;
|
||
if (h == NULL && local_got_offsets)
|
||
tls_type
|
||
= _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
|
||
else if (h != NULL)
|
||
{
|
||
tls_type = tilepro_elf_hash_entry(h)->tls_type;
|
||
if (!bfd_link_pic (info) && h->dynindx == -1 && tls_type == GOT_TLS_IE)
|
||
r_type = tilepro_tls_translate_to_le (r_type);
|
||
}
|
||
if (tls_type == GOT_TLS_IE)
|
||
r_type = tilepro_tls_translate_to_ie (r_type);
|
||
|
||
if (r_type == R_TILEPRO_IMM16_X0_TLS_LE
|
||
|| r_type == R_TILEPRO_IMM16_X1_TLS_LE
|
||
|| r_type == R_TILEPRO_IMM16_X0_TLS_LE_LO
|
||
|| r_type == R_TILEPRO_IMM16_X1_TLS_LE_LO
|
||
|| r_type == R_TILEPRO_IMM16_X0_TLS_LE_HI
|
||
|| r_type == R_TILEPRO_IMM16_X1_TLS_LE_HI
|
||
|| r_type == R_TILEPRO_IMM16_X0_TLS_LE_HA
|
||
|| r_type == R_TILEPRO_IMM16_X1_TLS_LE_HA)
|
||
{
|
||
relocation = tpoff (info, relocation);
|
||
break;
|
||
}
|
||
|
||
if (h != NULL)
|
||
{
|
||
off = h->got.offset;
|
||
h->got.offset |= 1;
|
||
}
|
||
else
|
||
{
|
||
BFD_ASSERT (local_got_offsets != NULL);
|
||
off = local_got_offsets[r_symndx];
|
||
local_got_offsets[r_symndx] |= 1;
|
||
}
|
||
|
||
if (htab->elf.sgot == NULL)
|
||
abort ();
|
||
|
||
if ((off & 1) != 0)
|
||
off &= ~1;
|
||
else
|
||
{
|
||
Elf_Internal_Rela outrel;
|
||
int indx = 0;
|
||
bfd_boolean need_relocs = FALSE;
|
||
|
||
if (htab->elf.srelgot == NULL)
|
||
abort ();
|
||
|
||
if (h != NULL)
|
||
{
|
||
bfd_boolean dyn;
|
||
dyn = htab->elf.dynamic_sections_created;
|
||
|
||
if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
|
||
bfd_link_pic (info),
|
||
h)
|
||
&& (!bfd_link_pic (info)
|
||
|| !SYMBOL_REFERENCES_LOCAL (info, h)))
|
||
{
|
||
indx = h->dynindx;
|
||
}
|
||
}
|
||
|
||
/* The GOT entries have not been initialized yet. Do it
|
||
now, and emit any relocations. */
|
||
if ((bfd_link_pic (info) || indx != 0)
|
||
&& (h == NULL
|
||
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|
||
|| h->root.type != bfd_link_hash_undefweak))
|
||
need_relocs = TRUE;
|
||
|
||
switch (r_type)
|
||
{
|
||
case R_TILEPRO_IMM16_X0_TLS_IE:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_LO:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_LO:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_HI:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_HI:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_HA:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_HA:
|
||
if (need_relocs) {
|
||
bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
|
||
outrel.r_offset = (htab->elf.sgot->output_section->vma
|
||
+ htab->elf.sgot->output_offset + off);
|
||
outrel.r_addend = 0;
|
||
if (indx == 0)
|
||
outrel.r_addend = relocation - dtpoff_base (info);
|
||
outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_TPOFF32);
|
||
tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
|
||
&outrel);
|
||
} else {
|
||
bfd_put_32 (output_bfd, tpoff (info, relocation),
|
||
htab->elf.sgot->contents + off);
|
||
}
|
||
break;
|
||
|
||
case R_TILEPRO_IMM16_X0_TLS_GD:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD:
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_LO:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_LO:
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_HI:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_HI:
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_HA:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_HA:
|
||
if (need_relocs) {
|
||
outrel.r_offset = (htab->elf.sgot->output_section->vma
|
||
+ htab->elf.sgot->output_offset + off);
|
||
outrel.r_addend = 0;
|
||
outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_DTPMOD32);
|
||
bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
|
||
tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
|
||
&outrel);
|
||
if (indx == 0)
|
||
{
|
||
BFD_ASSERT (! unresolved_reloc);
|
||
bfd_put_32 (output_bfd,
|
||
relocation - dtpoff_base (info),
|
||
(htab->elf.sgot->contents + off +
|
||
TILEPRO_BYTES_PER_WORD));
|
||
}
|
||
else
|
||
{
|
||
bfd_put_32 (output_bfd, 0,
|
||
(htab->elf.sgot->contents + off +
|
||
TILEPRO_BYTES_PER_WORD));
|
||
outrel.r_info = ELF32_R_INFO (indx,
|
||
R_TILEPRO_TLS_DTPOFF32);
|
||
outrel.r_offset += TILEPRO_BYTES_PER_WORD;
|
||
tilepro_elf_append_rela_32 (output_bfd,
|
||
htab->elf.srelgot, &outrel);
|
||
}
|
||
}
|
||
|
||
else {
|
||
/* If we are not emitting relocations for a
|
||
general dynamic reference, then we must be in a
|
||
static link or an executable link with the
|
||
symbol binding locally. Mark it as belonging
|
||
to module 1, the executable. */
|
||
bfd_put_32 (output_bfd, 1,
|
||
htab->elf.sgot->contents + off );
|
||
bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
|
||
htab->elf.sgot->contents + off +
|
||
TILEPRO_BYTES_PER_WORD);
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (off >= (bfd_vma) -2)
|
||
abort ();
|
||
|
||
relocation = off - got_base;
|
||
unresolved_reloc = FALSE;
|
||
howto = tilepro_elf_howto_table + r_type;
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
|
||
/* Dynamic relocs are not propagated for SEC_DEBUGGING sections
|
||
because such sections are not SEC_ALLOC and thus ld.so will
|
||
not process them. */
|
||
if (unresolved_reloc
|
||
&& !((input_section->flags & SEC_DEBUGGING) != 0
|
||
&& h->def_dynamic)
|
||
&& _bfd_elf_section_offset (output_bfd, info, input_section,
|
||
rel->r_offset) != (bfd_vma) -1)
|
||
_bfd_error_handler
|
||
/* xgettext:c-format */
|
||
(_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
|
||
input_bfd,
|
||
input_section,
|
||
(long) rel->r_offset,
|
||
howto->name,
|
||
h->root.root.string);
|
||
|
||
r = bfd_reloc_continue;
|
||
|
||
/* For the _HA types, we add 0x8000 so that if bit 15 is set,
|
||
* we will increment bit 16. The howto->rightshift takes care
|
||
* of the rest for us. */
|
||
switch (r_type)
|
||
{
|
||
case R_TILEPRO_HA16:
|
||
case R_TILEPRO_IMM16_X0_HA:
|
||
case R_TILEPRO_IMM16_X1_HA:
|
||
case R_TILEPRO_IMM16_X0_HA_PCREL:
|
||
case R_TILEPRO_IMM16_X1_HA_PCREL:
|
||
case R_TILEPRO_IMM16_X0_GOT_HA:
|
||
case R_TILEPRO_IMM16_X1_GOT_HA:
|
||
case R_TILEPRO_IMM16_X0_TLS_GD_HA:
|
||
case R_TILEPRO_IMM16_X1_TLS_GD_HA:
|
||
case R_TILEPRO_IMM16_X0_TLS_IE_HA:
|
||
case R_TILEPRO_IMM16_X1_TLS_IE_HA:
|
||
relocation += 0x8000;
|
||
break;
|
||
}
|
||
|
||
/* Get the operand creation function, if any. */
|
||
create_func = reloc_to_create_func[r_type];
|
||
if (create_func == NULL)
|
||
{
|
||
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
||
contents, rel->r_offset,
|
||
relocation, rel->r_addend);
|
||
}
|
||
else
|
||
{
|
||
if (howto->pc_relative)
|
||
{
|
||
relocation -=
|
||
input_section->output_section->vma + input_section->output_offset;
|
||
if (howto->pcrel_offset)
|
||
relocation -= rel->r_offset;
|
||
}
|
||
|
||
bfd_byte *data;
|
||
|
||
/* Add the relocation addend if any to the final target value */
|
||
relocation += rel->r_addend;
|
||
|
||
/* Do basic range checking */
|
||
r = bfd_check_overflow (howto->complain_on_overflow,
|
||
howto->bitsize,
|
||
howto->rightshift,
|
||
32,
|
||
relocation);
|
||
|
||
/*
|
||
* Write the relocated value out into the raw section data.
|
||
* Don't put a relocation out in the .rela section.
|
||
*/
|
||
tilepro_bundle_bits mask = create_func(-1);
|
||
tilepro_bundle_bits value = create_func(relocation >> howto->rightshift);
|
||
|
||
/* Only touch bytes while the mask is not 0, so we
|
||
don't write to out of bounds memory if this is actually
|
||
a 16-bit switch instruction. */
|
||
for (data = contents + rel->r_offset; mask != 0; data++)
|
||
{
|
||
bfd_byte byte_mask = (bfd_byte)mask;
|
||
*data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
|
||
mask >>= 8;
|
||
value >>= 8;
|
||
}
|
||
}
|
||
|
||
if (r != bfd_reloc_ok)
|
||
{
|
||
const char *msg = 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->warning) (info, msg, name, input_bfd,
|
||
input_section, rel->r_offset);
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Finish up dynamic symbol handling. We set the contents of various
|
||
dynamic sections here. */
|
||
|
||
static bfd_boolean
|
||
tilepro_elf_finish_dynamic_symbol (bfd *output_bfd,
|
||
struct bfd_link_info *info,
|
||
struct elf_link_hash_entry *h,
|
||
Elf_Internal_Sym *sym)
|
||
{
|
||
struct tilepro_elf_link_hash_table *htab;
|
||
|
||
htab = tilepro_elf_hash_table (info);
|
||
BFD_ASSERT (htab != NULL);
|
||
|
||
if (h->plt.offset != (bfd_vma) -1)
|
||
{
|
||
asection *splt;
|
||
asection *srela;
|
||
asection *sgotplt;
|
||
Elf_Internal_Rela rela;
|
||
bfd_byte *loc;
|
||
bfd_vma r_offset;
|
||
|
||
int rela_index;
|
||
|
||
/* This symbol has an entry in the PLT. Set it up. */
|
||
|
||
BFD_ASSERT (h->dynindx != -1);
|
||
|
||
splt = htab->elf.splt;
|
||
srela = htab->elf.srelplt;
|
||
sgotplt = htab->elf.sgotplt;
|
||
|
||
if (splt == NULL || srela == NULL)
|
||
abort ();
|
||
|
||
/* Fill in the entry in the procedure linkage table. */
|
||
rela_index = tilepro_plt_entry_build (splt, sgotplt, h->plt.offset,
|
||
&r_offset);
|
||
|
||
/* Fill in the entry in the global offset table, which initially points
|
||
to the beginning of the plt. */
|
||
bfd_put_32 (output_bfd, splt->output_section->vma + splt->output_offset,
|
||
sgotplt->contents + r_offset);
|
||
|
||
/* Fill in the entry in the .rela.plt section. */
|
||
rela.r_offset = (sgotplt->output_section->vma
|
||
+ sgotplt->output_offset
|
||
+ r_offset);
|
||
rela.r_addend = 0;
|
||
rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_JMP_SLOT);
|
||
|
||
loc = srela->contents + rela_index * sizeof (Elf32_External_Rela);
|
||
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
||
|
||
if (!h->def_regular)
|
||
{
|
||
/* Mark the symbol as undefined, rather than as defined in
|
||
the .plt section. Leave the value alone. */
|
||
sym->st_shndx = SHN_UNDEF;
|
||
/* If the symbol is weak, we do need to clear the value.
|
||
Otherwise, the PLT entry would provide a definition for
|
||
the symbol even if the symbol wasn't defined anywhere,
|
||
and so the symbol would never be NULL. */
|
||
if (!h->ref_regular_nonweak)
|
||
sym->st_value = 0;
|
||
}
|
||
}
|
||
|
||
if (h->got.offset != (bfd_vma) -1
|
||
&& tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_GD
|
||
&& tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
|
||
{
|
||
asection *sgot;
|
||
asection *srela;
|
||
Elf_Internal_Rela rela;
|
||
|
||
/* This symbol has an entry in the GOT. Set it up. */
|
||
|
||
sgot = htab->elf.sgot;
|
||
srela = htab->elf.srelgot;
|
||
BFD_ASSERT (sgot != NULL && srela != NULL);
|
||
|
||
rela.r_offset = (sgot->output_section->vma
|
||
+ sgot->output_offset
|
||
+ (h->got.offset &~ (bfd_vma) 1));
|
||
|
||
/* If this is a -Bsymbolic link, and the symbol is defined
|
||
locally, we just want to emit a RELATIVE reloc. Likewise if
|
||
the symbol was forced to be local because of a version file.
|
||
The entry in the global offset table will already have been
|
||
initialized in the relocate_section function. */
|
||
if (bfd_link_pic (info)
|
||
&& (info->symbolic || h->dynindx == -1)
|
||
&& h->def_regular)
|
||
{
|
||
asection *sec = h->root.u.def.section;
|
||
rela.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
|
||
rela.r_addend = (h->root.u.def.value
|
||
+ sec->output_section->vma
|
||
+ sec->output_offset);
|
||
}
|
||
else
|
||
{
|
||
rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_GLOB_DAT);
|
||
rela.r_addend = 0;
|
||
}
|
||
|
||
bfd_put_32 (output_bfd, 0,
|
||
sgot->contents + (h->got.offset & ~(bfd_vma) 1));
|
||
tilepro_elf_append_rela_32 (output_bfd, srela, &rela);
|
||
}
|
||
|
||
if (h->needs_copy)
|
||
{
|
||
asection *s;
|
||
Elf_Internal_Rela rela;
|
||
|
||
/* This symbols needs a copy reloc. Set it up. */
|
||
BFD_ASSERT (h->dynindx != -1);
|
||
|
||
rela.r_offset = (h->root.u.def.value
|
||
+ h->root.u.def.section->output_section->vma
|
||
+ h->root.u.def.section->output_offset);
|
||
rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_COPY);
|
||
rela.r_addend = 0;
|
||
if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
|
||
s = htab->elf.sreldynrelro;
|
||
else
|
||
s = htab->elf.srelbss;
|
||
tilepro_elf_append_rela_32 (output_bfd, s, &rela);
|
||
}
|
||
|
||
/* Mark some specially defined symbols as absolute. */
|
||
if (h == htab->elf.hdynamic
|
||
|| (h == htab->elf.hgot || h == htab->elf.hplt))
|
||
sym->st_shndx = SHN_ABS;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Finish up the dynamic sections. */
|
||
|
||
static bfd_boolean
|
||
tilepro_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
|
||
bfd *dynobj, asection *sdyn,
|
||
asection *splt ATTRIBUTE_UNUSED)
|
||
{
|
||
Elf32_External_Dyn *dyncon, *dynconend;
|
||
struct tilepro_elf_link_hash_table *htab;
|
||
|
||
htab = tilepro_elf_hash_table (info);
|
||
BFD_ASSERT (htab != NULL);
|
||
dyncon = (Elf32_External_Dyn *) sdyn->contents;
|
||
dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
|
||
for (; dyncon < dynconend; dyncon++)
|
||
{
|
||
Elf_Internal_Dyn dyn;
|
||
asection *s;
|
||
|
||
bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
|
||
|
||
switch (dyn.d_tag)
|
||
{
|
||
case DT_PLTGOT:
|
||
s = htab->elf.sgotplt;
|
||
dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
|
||
break;
|
||
case DT_JMPREL:
|
||
s = htab->elf.srelplt;
|
||
dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
|
||
break;
|
||
case DT_PLTRELSZ:
|
||
s = htab->elf.srelplt;
|
||
dyn.d_un.d_val = s->size;
|
||
break;
|
||
default:
|
||
continue;
|
||
}
|
||
|
||
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
||
}
|
||
return TRUE;
|
||
}
|
||
|
||
static bfd_boolean
|
||
tilepro_elf_finish_dynamic_sections (bfd *output_bfd,
|
||
struct bfd_link_info *info)
|
||
{
|
||
bfd *dynobj;
|
||
asection *sdyn;
|
||
struct tilepro_elf_link_hash_table *htab;
|
||
|
||
htab = tilepro_elf_hash_table (info);
|
||
BFD_ASSERT (htab != NULL);
|
||
dynobj = htab->elf.dynobj;
|
||
|
||
sdyn = bfd_get_linker_section (dynobj, ".dynamic");
|
||
|
||
if (elf_hash_table (info)->dynamic_sections_created)
|
||
{
|
||
asection *splt;
|
||
bfd_boolean ret;
|
||
|
||
splt = htab->elf.splt;
|
||
BFD_ASSERT (splt != NULL && sdyn != NULL);
|
||
|
||
ret = tilepro_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
|
||
|
||
if (ret != TRUE)
|
||
return ret;
|
||
|
||
/* Fill in the first entry in the procedure linkage table. */
|
||
if (splt->size > 0)
|
||
{
|
||
memcpy (splt->contents, tilepro_plt0_entry, PLT_HEADER_SIZE);
|
||
memset (splt->contents + PLT_HEADER_SIZE, 0,
|
||
PLT_ENTRY_SIZE - PLT_HEADER_SIZE);
|
||
}
|
||
|
||
if (elf_section_data (splt->output_section) != NULL)
|
||
elf_section_data (splt->output_section)->this_hdr.sh_entsize
|
||
= PLT_ENTRY_SIZE;
|
||
}
|
||
|
||
if (htab->elf.sgotplt)
|
||
{
|
||
if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
|
||
{
|
||
_bfd_error_handler
|
||
(_("discarded output section: `%A'"), htab->elf.sgotplt);
|
||
return FALSE;
|
||
}
|
||
|
||
if (htab->elf.sgotplt->size > 0)
|
||
{
|
||
/* Write the first two entries in .got.plt, needed for the dynamic
|
||
linker. */
|
||
bfd_put_32 (output_bfd, (bfd_vma) -1,
|
||
htab->elf.sgotplt->contents);
|
||
bfd_put_32 (output_bfd, (bfd_vma) 0,
|
||
htab->elf.sgotplt->contents + GOT_ENTRY_SIZE);
|
||
}
|
||
|
||
elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize
|
||
= GOT_ENTRY_SIZE;
|
||
}
|
||
|
||
if (htab->elf.sgot)
|
||
{
|
||
if (htab->elf.sgot->size > 0)
|
||
{
|
||
/* Set the first entry in the global offset table to the address of
|
||
the dynamic section. */
|
||
bfd_vma val = (sdyn ?
|
||
sdyn->output_section->vma + sdyn->output_offset :
|
||
0);
|
||
bfd_put_32 (output_bfd, val, htab->elf.sgot->contents);
|
||
}
|
||
|
||
elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize
|
||
= GOT_ENTRY_SIZE;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
|
||
|
||
/* Return address for Ith PLT stub in section PLT, for relocation REL
|
||
or (bfd_vma) -1 if it should not be included. */
|
||
|
||
static bfd_vma
|
||
tilepro_elf_plt_sym_val (bfd_vma i, const asection *plt,
|
||
const arelent *rel ATTRIBUTE_UNUSED)
|
||
{
|
||
return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
|
||
}
|
||
|
||
static enum elf_reloc_type_class
|
||
tilepro_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
|
||
const asection *rel_sec ATTRIBUTE_UNUSED,
|
||
const Elf_Internal_Rela *rela)
|
||
{
|
||
switch ((int) ELF32_R_TYPE (rela->r_info))
|
||
{
|
||
case R_TILEPRO_RELATIVE:
|
||
return reloc_class_relative;
|
||
case R_TILEPRO_JMP_SLOT:
|
||
return reloc_class_plt;
|
||
case R_TILEPRO_COPY:
|
||
return reloc_class_copy;
|
||
default:
|
||
return reloc_class_normal;
|
||
}
|
||
}
|
||
|
||
static int
|
||
tilepro_additional_program_headers (bfd *abfd,
|
||
struct bfd_link_info *info ATTRIBUTE_UNUSED)
|
||
{
|
||
/* Each .intrpt section specified by the user adds another PT_LOAD
|
||
header since the sections are discontiguous. */
|
||
static const char intrpt_sections[4][9] =
|
||
{
|
||
".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
|
||
};
|
||
int count = 0;
|
||
int i;
|
||
|
||
for (i = 0; i < 4; i++)
|
||
{
|
||
asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
|
||
if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
|
||
++count;
|
||
}
|
||
|
||
/* Add four "padding" headers in to leave room in case a custom linker
|
||
script does something fancy. Otherwise ld complains that it ran
|
||
out of program headers and refuses to link. */
|
||
count += 4;
|
||
|
||
return count;
|
||
}
|
||
|
||
#define ELF_ARCH bfd_arch_tilepro
|
||
#define ELF_TARGET_ID TILEPRO_ELF_DATA
|
||
#define ELF_MACHINE_CODE EM_TILEPRO
|
||
#define ELF_MAXPAGESIZE 0x10000
|
||
#define ELF_COMMONPAGESIZE 0x10000
|
||
|
||
#define TARGET_LITTLE_SYM tilepro_elf32_vec
|
||
#define TARGET_LITTLE_NAME "elf32-tilepro"
|
||
|
||
#define elf_backend_reloc_type_class tilepro_reloc_type_class
|
||
|
||
#define bfd_elf32_bfd_reloc_name_lookup tilepro_reloc_name_lookup
|
||
#define bfd_elf32_bfd_link_hash_table_create tilepro_elf_link_hash_table_create
|
||
#define bfd_elf32_bfd_reloc_type_lookup tilepro_reloc_type_lookup
|
||
|
||
#define elf_backend_copy_indirect_symbol tilepro_elf_copy_indirect_symbol
|
||
#define elf_backend_create_dynamic_sections tilepro_elf_create_dynamic_sections
|
||
#define elf_backend_check_relocs tilepro_elf_check_relocs
|
||
#define elf_backend_adjust_dynamic_symbol tilepro_elf_adjust_dynamic_symbol
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#define elf_backend_omit_section_dynsym tilepro_elf_omit_section_dynsym
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#define elf_backend_size_dynamic_sections tilepro_elf_size_dynamic_sections
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#define elf_backend_relocate_section tilepro_elf_relocate_section
|
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#define elf_backend_finish_dynamic_symbol tilepro_elf_finish_dynamic_symbol
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#define elf_backend_finish_dynamic_sections tilepro_elf_finish_dynamic_sections
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#define elf_backend_gc_mark_hook tilepro_elf_gc_mark_hook
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#define elf_backend_gc_sweep_hook tilepro_elf_gc_sweep_hook
|
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#define elf_backend_plt_sym_val tilepro_elf_plt_sym_val
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#define elf_info_to_howto_rel NULL
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||
#define elf_info_to_howto tilepro_info_to_howto_rela
|
||
#define elf_backend_grok_prstatus tilepro_elf_grok_prstatus
|
||
#define elf_backend_grok_psinfo tilepro_elf_grok_psinfo
|
||
#define elf_backend_additional_program_headers tilepro_additional_program_headers
|
||
|
||
#define bfd_elf32_mkobject tilepro_elf_mkobject
|
||
|
||
#define elf_backend_init_index_section _bfd_elf_init_1_index_section
|
||
|
||
#define elf_backend_can_gc_sections 1
|
||
#define elf_backend_can_refcount 1
|
||
#define elf_backend_want_got_plt 1
|
||
#define elf_backend_plt_readonly 1
|
||
/* Align PLT mod 64 byte L2 line size. */
|
||
#define elf_backend_plt_alignment 6
|
||
#define elf_backend_want_plt_sym 1
|
||
#define elf_backend_got_header_size GOT_ENTRY_SIZE
|
||
#define elf_backend_want_dynrelro 1
|
||
#define elf_backend_rela_normal 1
|
||
#define elf_backend_default_execstack 0
|
||
|
||
#include "elf32-target.h"
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