mirror of
https://sourceware.org/git/binutils-gdb.git
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07d6d2b834
Binutils is supposed to use tabs. In my git config I have whitespace = indent-with-non-tab,space-before-tab,trailing-space and I got annoyed enough seeing red in "git diff" output to fix the problems. * doc/header.sed: Trim trailing space when splitting lines. * aix386-core.c, * aout-adobe.c, * aout-arm.c, * aout-cris.c, * aout-ns32k.c, * aout-target.h, * aout-tic30.c, * aoutf1.h, * aoutx.h, * arc-got.h, * arc-plt.def, * arc-plt.h, * archive.c, * archive64.c, * archures.c, * armnetbsd.c, * bfd-in.h, * bfd.c, * bfdio.c, * binary.c, * bout.c, * cache.c, * cisco-core.c, * coff-alpha.c, * coff-apollo.c, * coff-arm.c, * coff-h8300.c, * coff-i386.c, * coff-i860.c, * coff-i960.c, * coff-m68k.c, * coff-m88k.c, * coff-mcore.c, * coff-mips.c, * coff-ppc.c, * coff-rs6000.c, * coff-sh.c, * coff-stgo32.c, * coff-tic4x.c, * coff-tic54x.c, * coff-tic80.c, * coff-we32k.c, * coff-x86_64.c, * coff-z80.c, * coff-z8k.c, * coff64-rs6000.c, * coffcode.h, * coffgen.c, * cofflink.c, * coffswap.h, * compress.c, * corefile.c, * cpu-alpha.c, * cpu-arm.c, * cpu-avr.c, * cpu-bfin.c, * cpu-cr16.c, * cpu-cr16c.c, * cpu-crx.c, * cpu-d10v.c, * cpu-frv.c, * cpu-ft32.c, * cpu-i370.c, * cpu-i960.c, * cpu-ia64-opc.c, * cpu-ip2k.c, * cpu-lm32.c, * cpu-m32r.c, * cpu-mcore.c, * cpu-microblaze.c, * cpu-mips.c, * cpu-moxie.c, * cpu-mt.c, * cpu-nios2.c, * cpu-ns32k.c, * cpu-or1k.c, * cpu-powerpc.c, * cpu-pru.c, * cpu-sh.c, * cpu-spu.c, * cpu-v850.c, * cpu-v850_rh850.c, * cpu-xgate.c, * cpu-z80.c, * dwarf1.c, * dwarf2.c, * ecoff.c, * ecofflink.c, * ecoffswap.h, * elf-bfd.h, * elf-eh-frame.c, * elf-hppa.h, * elf-m10200.c, * elf-m10300.c, * elf-s390-common.c, * elf-strtab.c, * elf-vxworks.c, * elf.c, * elf32-am33lin.c, * elf32-arc.c, * elf32-arm.c, * elf32-avr.c, * elf32-avr.h, * elf32-bfin.c, * elf32-cr16.c, * elf32-cr16c.c, * elf32-cris.c, * elf32-crx.c, * elf32-d10v.c, * elf32-d30v.c, * elf32-dlx.c, * elf32-epiphany.c, * elf32-fr30.c, * elf32-frv.c, * elf32-ft32.c, * elf32-h8300.c, * elf32-hppa.c, * elf32-i386.c, * elf32-i860.c, * elf32-i960.c, * elf32-ip2k.c, * elf32-lm32.c, * elf32-m32c.c, * elf32-m32r.c, * elf32-m68hc11.c, * elf32-m68hc12.c, * elf32-m68hc1x.c, * elf32-m68hc1x.h, * elf32-m68k.c, * elf32-m88k.c, * elf32-mcore.c, * elf32-mep.c, * elf32-metag.c, * elf32-microblaze.c, * elf32-mips.c, * elf32-moxie.c, * elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c, * elf32-nds32.h, * elf32-nios2.c, * elf32-or1k.c, * elf32-pj.c, * elf32-ppc.c, * elf32-ppc.h, * elf32-pru.c, * elf32-rl78.c, * elf32-rx.c, * elf32-s390.c, * elf32-score.c, * elf32-score.h, * elf32-score7.c, * elf32-sh-symbian.c, * elf32-sh.c, * elf32-sh64.c, * elf32-sparc.c, * elf32-spu.c, * elf32-tic6x.c, * elf32-tilegx.c, * elf32-tilegx.h, * elf32-tilepro.c, * elf32-tilepro.h, * elf32-v850.c, * elf32-vax.c, * elf32-wasm32.c, * elf32-xc16x.c, * elf32-xgate.c, * elf32-xgate.h, * elf32-xstormy16.c, * elf32-xtensa.c, * elf64-alpha.c, * elf64-hppa.c, * elf64-ia64-vms.c, * elf64-mips.c, * elf64-mmix.c, * elf64-ppc.c, * elf64-s390.c, * elf64-sh64.c, * elf64-sparc.c, * elf64-tilegx.c, * elf64-tilegx.h, * elf64-x86-64.c, * elfcore.h, * elflink.c, * elfn32-mips.c, * elfnn-aarch64.c, * elfnn-ia64.c, * elfnn-riscv.c, * elfxx-aarch64.c, * elfxx-aarch64.h, * elfxx-ia64.c, * elfxx-ia64.h, * elfxx-mips.c, * elfxx-riscv.c, * elfxx-sparc.c, * elfxx-tilegx.c, * elfxx-x86.c, * elfxx-x86.h, * freebsd.h, * hash.c, * host-aout.c, * hp300hpux.c, * hppabsd-core.c, * hpux-core.c, * i386aout.c, * i386linux.c, * i386lynx.c, * i386mach3.c, * i386msdos.c, * i386netbsd.c, * ieee.c, * ihex.c, * irix-core.c, * libaout.h, * libbfd-in.h, * libbfd.c, * libcoff-in.h, * libnlm.h, * libpei.h, * libxcoff.h, * linker.c, * lynx-core.c, * m68k4knetbsd.c, * m68klinux.c, * m68knetbsd.c, * m88kmach3.c, * mach-o-aarch64.c, * mach-o-arm.c, * mach-o-i386.c, * mach-o-target.c, * mach-o-x86-64.c, * mach-o.c, * mach-o.h, * merge.c, * mipsbsd.c, * mmo.c, * netbsd.h, * netbsd-core.c, * newsos3.c, * nlm-target.h, * nlm32-ppc.c, * nlm32-sparc.c, * nlmcode.h, * ns32k.h, * ns32knetbsd.c, * oasys.c, * opncls.c, * pc532-mach.c, * pdp11.c, * pe-arm.c, * pe-i386.c, * pe-mcore.c, * pe-mips.c, * pe-x86_64.c, * peXXigen.c, * pef.c, * pef.h, * pei-arm.c, * pei-i386.c, * pei-mcore.c, * pei-x86_64.c, * peicode.h, * plugin.c, * ppcboot.c, * ptrace-core.c, * reloc.c, * riscix.c, * rs6000-core.c, * section.c, * som.c, * som.h, * sparclinux.c, * sparcnetbsd.c, * srec.c, * stabs.c, * sunos.c, * syms.c, * targets.c, * tekhex.c, * trad-core.c, * vax1knetbsd.c, * vaxnetbsd.c, * verilog.c, * versados.c, * vms-alpha.c, * vms-lib.c, * vms-misc.c, * wasm-module.c, * wasm-module.h, * xcofflink.c, * xsym.c, * xsym.h: Whitespace fixes. * bfd-in2.h, * libbfd.h, * libcoff.h: Regenerate.
4249 lines
123 KiB
C
4249 lines
123 KiB
C
/* TILE-Gx-specific support for 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/tilegx.h"
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#include "opcode/tilegx.h"
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#include "libiberty.h"
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#include "elfxx-tilegx.h"
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#define ABI_64_P(abfd) \
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(get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
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#define TILEGX_ELF_WORD_BYTES(htab) \
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((htab)->bytes_per_word)
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/* The size of an external RELA relocation. */
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#define TILEGX_ELF_RELA_BYTES(htab) \
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((htab)->bytes_per_rela)
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/* Both 32-bit and 64-bit tilegx encode this in an identical manner,
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so just take advantage of that. */
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#define TILEGX_ELF_R_TYPE(r_info) \
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((r_info) & 0xFF)
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#define TILEGX_ELF_R_INFO(htab, in_rel, index, type) \
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((htab)->r_info (in_rel, index, type))
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#define TILEGX_ELF_R_SYMNDX(htab, r_info) \
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((htab)->r_symndx(r_info))
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#define TILEGX_ELF_DTPOFF_RELOC(htab) \
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((htab)->dtpoff_reloc)
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#define TILEGX_ELF_DTPMOD_RELOC(htab) \
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((htab)->dtpmod_reloc)
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#define TILEGX_ELF_TPOFF_RELOC(htab) \
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((htab)->tpoff_reloc)
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#define TILEGX_ELF_PUT_WORD(htab, bfd, val, ptr) \
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((htab)->put_word (bfd, val, ptr))
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/* The name of the dynamic interpreter. This is put in the .interp
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section. */
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#define ELF64_DYNAMIC_INTERPRETER "/lib/ld.so.1"
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#define ELF32_DYNAMIC_INTERPRETER "/lib32/ld.so.1"
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static reloc_howto_type tilegx_elf_howto_table [] =
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{
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/* This reloc does nothing. */
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HOWTO (R_TILEGX_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_TILEGX_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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#ifdef BFD64
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/* A 64 bit absolute relocation. */
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HOWTO (R_TILEGX_64, /* type */
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0, /* rightshift */
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4, /* size (0 = byte, 1 = short, 2 = long) */
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64, /* 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_TILEGX_64", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0xffffffffffffffffULL, /* dst_mask */
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FALSE), /* pcrel_offset */
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#endif
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/* A 32 bit absolute relocation. */
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HOWTO (R_TILEGX_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_TILEGX_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_TILEGX_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_TILEGX_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_TILEGX_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_TILEGX_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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#ifdef BFD64
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/* A 64 bit pc-relative relocation. */
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HOWTO (R_TILEGX_64_PCREL,/* type */
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0, /* rightshift */
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4, /* size (0 = byte, 1 = short, 2 = long) */
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64, /* 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_TILEGX_32_PCREL", /* name */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0xffffffffffffffffULL, /* dst_mask */
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TRUE), /* pcrel_offset */
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#endif
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/* A 32 bit pc-relative relocation. */
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HOWTO (R_TILEGX_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_TILEGX_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_TILEGX_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_TILEGX_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_TILEGX_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_TILEGX_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_TILEGX_HW0, /* 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_TILEGX_HW0", /* 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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/* A 16 bit relocation without overflow. */
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HOWTO (R_TILEGX_HW1, /* 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_TILEGX_HW1", /* 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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/* A 16 bit relocation without overflow. */
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HOWTO (R_TILEGX_HW2, /* type */
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32, /* 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_TILEGX_HW2", /* 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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/* A 16 bit relocation without overflow. */
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HOWTO (R_TILEGX_HW3, /* type */
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48, /* 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_TILEGX_HW3", /* 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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/* A 16 bit relocation with overflow. */
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HOWTO (R_TILEGX_HW0_LAST, /* 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_signed,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEGX_HW0_LAST", /* 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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/* A 16 bit relocation with overflow. */
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HOWTO (R_TILEGX_HW1_LAST, /* 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_signed,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_TILEGX_HW1_LAST", /* 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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||
|
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/* A 16 bit relocation with overflow. */
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HOWTO (R_TILEGX_HW2_LAST, /* type */
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32, /* 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_signed,/* complain_on_overflow */
|
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bfd_elf_generic_reloc, /* special_function */
|
||
"R_TILEGX_HW2_LAST", /* name */
|
||
FALSE, /* partial_inplace */
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||
0, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
HOWTO (R_TILEGX_COPY, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_TILEGX_COPY", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
|
||
HOWTO (R_TILEGX_GLOB_DAT, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_TILEGX_GLOB_DAT", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
|
||
HOWTO (R_TILEGX_JMP_SLOT, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_TILEGX_JMP_SLOT", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
|
||
HOWTO (R_TILEGX_RELATIVE, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_TILEGX_RELATIVE", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
|
||
HOWTO (R_TILEGX_BROFF_X1, /* type */
|
||
TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
17, /* bitsize */
|
||
TRUE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_TILEGX_BROFF_X1", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
-1, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
|
||
HOWTO (R_TILEGX_JUMPOFF_X1, /* type */
|
||
TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
27, /* bitsize */
|
||
TRUE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed,/* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_TILEGX_JUMPOFF_X1", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
-1, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
|
||
HOWTO (R_TILEGX_JUMPOFF_X1_PLT, /* type */
|
||
TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
27, /* bitsize */
|
||
TRUE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed,/* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_TILEGX_JUMPOFF_X1_PLT", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
-1, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
|
||
#define TILEGX_IMM_HOWTO(name, size, bitsize) \
|
||
HOWTO (name, 0, size, bitsize, FALSE, 0, \
|
||
complain_overflow_signed, bfd_elf_generic_reloc, \
|
||
#name, FALSE, 0, -1, FALSE)
|
||
|
||
#define TILEGX_UIMM_HOWTO(name, size, bitsize) \
|
||
HOWTO (name, 0, size, bitsize, FALSE, 0, \
|
||
complain_overflow_unsigned, bfd_elf_generic_reloc, \
|
||
#name, FALSE, 0, -1, FALSE)
|
||
|
||
TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0, 0, 8),
|
||
TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0, 0, 8),
|
||
TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1, 0, 8),
|
||
TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1, 0, 8),
|
||
TILEGX_IMM_HOWTO(R_TILEGX_DEST_IMM8_X1, 0, 8),
|
||
|
||
TILEGX_UIMM_HOWTO(R_TILEGX_MT_IMM14_X1, 1, 14),
|
||
TILEGX_UIMM_HOWTO(R_TILEGX_MF_IMM14_X1, 1, 14),
|
||
|
||
TILEGX_UIMM_HOWTO(R_TILEGX_MMSTART_X0, 0, 6),
|
||
TILEGX_UIMM_HOWTO(R_TILEGX_MMEND_X0, 0, 6),
|
||
|
||
TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_X0, 0, 6),
|
||
TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_X1, 0, 6),
|
||
TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_Y0, 0, 6),
|
||
TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_Y1, 0, 6),
|
||
|
||
#define TILEGX_IMM16_HOWTO(name, rshift) \
|
||
HOWTO (name, rshift, 1, 16, FALSE, 0, \
|
||
complain_overflow_dont, bfd_elf_generic_reloc, \
|
||
#name, FALSE, 0, 0xffff, FALSE)
|
||
|
||
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0, 0),
|
||
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0, 0),
|
||
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW1, 16),
|
||
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW1, 16),
|
||
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW2, 32),
|
||
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW2, 32),
|
||
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW3, 48),
|
||
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW3, 48),
|
||
|
||
#define TILEGX_IMM16_HOWTO_LAST(name, rshift) \
|
||
HOWTO (name, rshift, 1, 16, FALSE, 0, \
|
||
complain_overflow_signed, bfd_elf_generic_reloc, \
|
||
#name, FALSE, 0, 0xffff, FALSE)
|
||
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST, 0),
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST, 0),
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST, 16),
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST, 16),
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW2_LAST, 32),
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW2_LAST, 32),
|
||
|
||
/* PC-relative offsets. */
|
||
|
||
#define TILEGX_IMM16_HOWTO_PCREL(name, rshift) \
|
||
HOWTO (name, rshift, 1, 16, TRUE, 0, \
|
||
complain_overflow_dont, bfd_elf_generic_reloc, \
|
||
#name, FALSE, 0, 0xffff, TRUE)
|
||
|
||
TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW0_PCREL, 0),
|
||
TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW0_PCREL, 0),
|
||
TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW1_PCREL, 16),
|
||
TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW1_PCREL, 16),
|
||
TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW2_PCREL, 32),
|
||
TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW2_PCREL, 32),
|
||
TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW3_PCREL, 48),
|
||
TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW3_PCREL, 48),
|
||
|
||
#define TILEGX_IMM16_HOWTO_LAST_PCREL(name, rshift) \
|
||
HOWTO (name, rshift, 1, 16, TRUE, 0, \
|
||
complain_overflow_signed, bfd_elf_generic_reloc, \
|
||
#name, FALSE, 0, 0xffff, TRUE)
|
||
|
||
TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW0_LAST_PCREL, 0),
|
||
TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW0_LAST_PCREL, 0),
|
||
TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW1_LAST_PCREL, 16),
|
||
TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW1_LAST_PCREL, 16),
|
||
TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW2_LAST_PCREL, 32),
|
||
TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW2_LAST_PCREL, 32),
|
||
|
||
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_GOT, 0),
|
||
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_GOT, 0),
|
||
|
||
TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW0_PLT_PCREL, 0),
|
||
TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW0_PLT_PCREL, 0),
|
||
TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW1_PLT_PCREL, 16),
|
||
TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW1_PLT_PCREL, 16),
|
||
TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW2_PLT_PCREL, 32),
|
||
TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW2_PLT_PCREL, 32),
|
||
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_GOT, 0),
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_GOT, 0),
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_GOT, 16),
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_GOT, 16),
|
||
|
||
TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW3_PLT_PCREL, 48),
|
||
TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW3_PLT_PCREL, 48),
|
||
|
||
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_TLS_GD, 0),
|
||
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_TLS_GD, 0),
|
||
|
||
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_TLS_LE, 0),
|
||
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_TLS_LE, 0),
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE, 0),
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE, 0),
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE, 16),
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE, 16),
|
||
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD, 0),
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD, 0),
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD, 16),
|
||
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD, 16),
|
||
EMPTY_HOWTO (90),
|
||
EMPTY_HOWTO (91),
|
||
|
||
#define TILEGX_IMM16_HOWTO_TLS_IE(name, rshift) \
|
||
HOWTO (name, rshift, 1, 16, FALSE, 0, \
|
||
complain_overflow_dont, bfd_elf_generic_reloc, \
|
||
#name, FALSE, 0, 0xffff, TRUE)
|
||
|
||
TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X0_HW0_TLS_IE, 0),
|
||
TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X1_HW0_TLS_IE, 0),
|
||
|
||
TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL, 0),
|
||
TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL, 0),
|
||
TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL, 16),
|
||
TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL, 16),
|
||
TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL, 32),
|
||
TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL, 32),
|
||
|
||
#define TILEGX_IMM16_HOWTO_LAST_TLS_IE(name, rshift) \
|
||
HOWTO (name, rshift, 1, 16, FALSE, 0, \
|
||
complain_overflow_signed, bfd_elf_generic_reloc, \
|
||
#name, FALSE, 0, 0xffff, TRUE)
|
||
|
||
TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE, 0),
|
||
TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE, 0),
|
||
TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE, 16),
|
||
TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE, 16),
|
||
EMPTY_HOWTO (104),
|
||
EMPTY_HOWTO (105),
|
||
|
||
HOWTO(R_TILEGX_TLS_DTPMOD64, 0, 0, 0, FALSE, 0, complain_overflow_dont,
|
||
bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD64",
|
||
FALSE, 0, 0, TRUE),
|
||
HOWTO(R_TILEGX_TLS_DTPOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
|
||
bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF64",
|
||
FALSE, 0, -1, TRUE),
|
||
HOWTO(R_TILEGX_TLS_TPOFF64, 0, 0, 0, FALSE, 0, complain_overflow_dont,
|
||
bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF64",
|
||
FALSE, 0, 0, TRUE),
|
||
|
||
HOWTO(R_TILEGX_TLS_DTPMOD32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
|
||
bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD32",
|
||
FALSE, 0, 0, TRUE),
|
||
HOWTO(R_TILEGX_TLS_DTPOFF32, 0, 4, 32, FALSE, 0, complain_overflow_bitfield,
|
||
bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF32",
|
||
FALSE, 0, -1, TRUE),
|
||
HOWTO(R_TILEGX_TLS_TPOFF32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
|
||
bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF32",
|
||
FALSE, 0, 0, TRUE),
|
||
|
||
HOWTO (R_TILEGX_TLS_GD_CALL, /* type */
|
||
TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
27, /* bitsize */
|
||
TRUE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed,/* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_TILEGX_TLS_GD_CALL", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
-1, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
|
||
TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0_TLS_GD_ADD, 0, 8),
|
||
TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1_TLS_GD_ADD, 0, 8),
|
||
TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0_TLS_GD_ADD, 0, 8),
|
||
TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1_TLS_GD_ADD, 0, 8),
|
||
TILEGX_IMM_HOWTO(R_TILEGX_TLS_IE_LOAD, 0, 8),
|
||
TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0_TLS_ADD, 0, 8),
|
||
TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1_TLS_ADD, 0, 8),
|
||
TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0_TLS_ADD, 0, 8),
|
||
TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1_TLS_ADD, 0, 8),
|
||
};
|
||
|
||
static reloc_howto_type tilegx_elf_howto_table2 [] =
|
||
{
|
||
/* GNU extension to record C++ vtable hierarchy */
|
||
HOWTO (R_TILEGX_GNU_VTINHERIT, /* type */
|
||
0, /* rightshift */
|
||
4, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
NULL, /* special_function */
|
||
"R_TILEGX_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_TILEGX_GNU_VTENTRY, /* type */
|
||
0, /* rightshift */
|
||
4, /* 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_TILEGX_GNU_VTENTRY", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
|
||
};
|
||
|
||
/* Map BFD reloc types to TILEGX ELF reloc types. */
|
||
|
||
typedef struct tilegx_reloc_map
|
||
{
|
||
bfd_reloc_code_real_type bfd_reloc_val;
|
||
unsigned int tilegx_reloc_val;
|
||
reloc_howto_type * table;
|
||
} reloc_map;
|
||
|
||
static const reloc_map tilegx_reloc_map [] =
|
||
{
|
||
#define TH_REMAP(bfd, tilegx) \
|
||
{ bfd, tilegx, tilegx_elf_howto_table },
|
||
|
||
/* Standard relocations. */
|
||
TH_REMAP (BFD_RELOC_NONE, R_TILEGX_NONE)
|
||
TH_REMAP (BFD_RELOC_64, R_TILEGX_64)
|
||
TH_REMAP (BFD_RELOC_32, R_TILEGX_32)
|
||
TH_REMAP (BFD_RELOC_16, R_TILEGX_16)
|
||
TH_REMAP (BFD_RELOC_8, R_TILEGX_8)
|
||
TH_REMAP (BFD_RELOC_64_PCREL, R_TILEGX_64_PCREL)
|
||
TH_REMAP (BFD_RELOC_32_PCREL, R_TILEGX_32_PCREL)
|
||
TH_REMAP (BFD_RELOC_16_PCREL, R_TILEGX_16_PCREL)
|
||
TH_REMAP (BFD_RELOC_8_PCREL, R_TILEGX_8_PCREL)
|
||
|
||
#define SIMPLE_REMAP(t) TH_REMAP (BFD_RELOC_##t, R_##t)
|
||
|
||
/* Custom relocations. */
|
||
SIMPLE_REMAP (TILEGX_HW0)
|
||
SIMPLE_REMAP (TILEGX_HW1)
|
||
SIMPLE_REMAP (TILEGX_HW2)
|
||
SIMPLE_REMAP (TILEGX_HW3)
|
||
SIMPLE_REMAP (TILEGX_HW0_LAST)
|
||
SIMPLE_REMAP (TILEGX_HW1_LAST)
|
||
SIMPLE_REMAP (TILEGX_HW2_LAST)
|
||
SIMPLE_REMAP (TILEGX_COPY)
|
||
SIMPLE_REMAP (TILEGX_GLOB_DAT)
|
||
SIMPLE_REMAP (TILEGX_JMP_SLOT)
|
||
SIMPLE_REMAP (TILEGX_RELATIVE)
|
||
SIMPLE_REMAP (TILEGX_BROFF_X1)
|
||
SIMPLE_REMAP (TILEGX_JUMPOFF_X1)
|
||
SIMPLE_REMAP (TILEGX_JUMPOFF_X1_PLT)
|
||
SIMPLE_REMAP (TILEGX_IMM8_X0)
|
||
SIMPLE_REMAP (TILEGX_IMM8_Y0)
|
||
SIMPLE_REMAP (TILEGX_IMM8_X1)
|
||
SIMPLE_REMAP (TILEGX_IMM8_Y1)
|
||
SIMPLE_REMAP (TILEGX_DEST_IMM8_X1)
|
||
SIMPLE_REMAP (TILEGX_MT_IMM14_X1)
|
||
SIMPLE_REMAP (TILEGX_MF_IMM14_X1)
|
||
SIMPLE_REMAP (TILEGX_MMSTART_X0)
|
||
SIMPLE_REMAP (TILEGX_MMEND_X0)
|
||
SIMPLE_REMAP (TILEGX_SHAMT_X0)
|
||
SIMPLE_REMAP (TILEGX_SHAMT_X1)
|
||
SIMPLE_REMAP (TILEGX_SHAMT_Y0)
|
||
SIMPLE_REMAP (TILEGX_SHAMT_Y1)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW1)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW1)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW2)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW2)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW3)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW3)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_GOT)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_GOT)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_PLT_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_PLT_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_PLT_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_PLT_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_PLT_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_PLT_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_GOT)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_GOT)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_GOT)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_GOT)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_PLT_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_PLT_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_GD)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_GD)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_LE)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_LE)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_LE)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_LE)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_LE)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_LE)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_GD)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_GD)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_GD)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_GD)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_IE)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_IE)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_IE)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_IE)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_IE)
|
||
SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_IE)
|
||
|
||
SIMPLE_REMAP (TILEGX_TLS_DTPMOD64)
|
||
SIMPLE_REMAP (TILEGX_TLS_DTPOFF64)
|
||
SIMPLE_REMAP (TILEGX_TLS_TPOFF64)
|
||
|
||
SIMPLE_REMAP (TILEGX_TLS_DTPMOD32)
|
||
SIMPLE_REMAP (TILEGX_TLS_DTPOFF32)
|
||
SIMPLE_REMAP (TILEGX_TLS_TPOFF32)
|
||
|
||
SIMPLE_REMAP (TILEGX_TLS_GD_CALL)
|
||
SIMPLE_REMAP (TILEGX_IMM8_X0_TLS_GD_ADD)
|
||
SIMPLE_REMAP (TILEGX_IMM8_X1_TLS_GD_ADD)
|
||
SIMPLE_REMAP (TILEGX_IMM8_Y0_TLS_GD_ADD)
|
||
SIMPLE_REMAP (TILEGX_IMM8_Y1_TLS_GD_ADD)
|
||
SIMPLE_REMAP (TILEGX_TLS_IE_LOAD)
|
||
SIMPLE_REMAP (TILEGX_IMM8_X0_TLS_ADD)
|
||
SIMPLE_REMAP (TILEGX_IMM8_X1_TLS_ADD)
|
||
SIMPLE_REMAP (TILEGX_IMM8_Y0_TLS_ADD)
|
||
SIMPLE_REMAP (TILEGX_IMM8_Y1_TLS_ADD)
|
||
|
||
#undef SIMPLE_REMAP
|
||
#undef TH_REMAP
|
||
|
||
{ BFD_RELOC_VTABLE_INHERIT, R_TILEGX_GNU_VTINHERIT, tilegx_elf_howto_table2 },
|
||
{ BFD_RELOC_VTABLE_ENTRY, R_TILEGX_GNU_VTENTRY, tilegx_elf_howto_table2 },
|
||
};
|
||
|
||
|
||
|
||
/* TILEGX ELF linker hash entry. */
|
||
|
||
struct tilegx_elf_link_hash_entry
|
||
{
|
||
struct elf_link_hash_entry elf;
|
||
|
||
/* Track dynamic relocs copied for this symbol. */
|
||
struct 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 tilegx_elf_hash_entry(ent) \
|
||
((struct tilegx_elf_link_hash_entry *)(ent))
|
||
|
||
struct _bfd_tilegx_elf_obj_tdata
|
||
{
|
||
struct elf_obj_tdata root;
|
||
|
||
/* tls_type for each local got entry. */
|
||
char *local_got_tls_type;
|
||
};
|
||
|
||
#define _bfd_tilegx_elf_tdata(abfd) \
|
||
((struct _bfd_tilegx_elf_obj_tdata *) (abfd)->tdata.any)
|
||
|
||
#define _bfd_tilegx_elf_local_got_tls_type(abfd) \
|
||
(_bfd_tilegx_elf_tdata (abfd)->local_got_tls_type)
|
||
|
||
#define is_tilegx_elf(bfd) \
|
||
(bfd_get_flavour (bfd) == bfd_target_elf_flavour \
|
||
&& elf_tdata (bfd) != NULL \
|
||
&& elf_object_id (bfd) == TILEGX_ELF_DATA)
|
||
|
||
#include "elf/common.h"
|
||
#include "elf/internal.h"
|
||
|
||
struct tilegx_elf_link_hash_table
|
||
{
|
||
struct elf_link_hash_table elf;
|
||
|
||
int bytes_per_word;
|
||
int word_align_power;
|
||
int bytes_per_rela;
|
||
int dtpmod_reloc;
|
||
int dtpoff_reloc;
|
||
int tpoff_reloc;
|
||
bfd_vma (*r_info) (Elf_Internal_Rela *, bfd_vma, bfd_vma);
|
||
bfd_vma (*r_symndx) (bfd_vma);
|
||
void (*put_word) (bfd *, bfd_vma, void *);
|
||
const char *dynamic_interpreter;
|
||
|
||
/* Whether LE transition has been disabled for some of the
|
||
sections. */
|
||
bfd_boolean disable_le_transition;
|
||
|
||
/* Small local sym to section mapping cache. */
|
||
struct sym_cache sym_cache;
|
||
};
|
||
|
||
|
||
/* Get the Tile ELF linker hash table from a link_info structure. */
|
||
#define tilegx_elf_hash_table(p) \
|
||
(elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
|
||
== TILEGX_ELF_DATA ? ((struct tilegx_elf_link_hash_table *) ((p)->hash)) : NULL)
|
||
|
||
#ifdef BFD64
|
||
static bfd_vma
|
||
tilegx_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
|
||
bfd_vma rel_index,
|
||
bfd_vma type)
|
||
{
|
||
return ELF64_R_INFO (rel_index, type);
|
||
}
|
||
|
||
static bfd_vma
|
||
tilegx_elf_r_symndx_64 (bfd_vma r_info)
|
||
{
|
||
return ELF64_R_SYM (r_info);
|
||
}
|
||
|
||
static void
|
||
tilegx_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
|
||
{
|
||
bfd_put_64 (abfd, val, ptr);
|
||
}
|
||
#endif /* BFD64 */
|
||
|
||
static bfd_vma
|
||
tilegx_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
|
||
bfd_vma rel_index,
|
||
bfd_vma type)
|
||
{
|
||
return ELF32_R_INFO (rel_index, type);
|
||
}
|
||
|
||
static bfd_vma
|
||
tilegx_elf_r_symndx_32 (bfd_vma r_info)
|
||
{
|
||
return ELF32_R_SYM (r_info);
|
||
}
|
||
|
||
static void
|
||
tilegx_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
|
||
{
|
||
bfd_put_32 (abfd, val, ptr);
|
||
}
|
||
|
||
reloc_howto_type *
|
||
tilegx_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
|
||
bfd_reloc_code_real_type code)
|
||
{
|
||
unsigned int i;
|
||
|
||
for (i = ARRAY_SIZE (tilegx_reloc_map); i--;)
|
||
{
|
||
const reloc_map * entry;
|
||
|
||
entry = tilegx_reloc_map + i;
|
||
|
||
if (entry->bfd_reloc_val == code)
|
||
return entry->table + (entry->tilegx_reloc_val
|
||
- entry->table[0].type);
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
reloc_howto_type *
|
||
tilegx_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
||
const char *r_name)
|
||
{
|
||
unsigned int i;
|
||
|
||
for (i = 0;
|
||
i < (sizeof (tilegx_elf_howto_table)
|
||
/ sizeof (tilegx_elf_howto_table[0]));
|
||
i++)
|
||
if (tilegx_elf_howto_table[i].name != NULL
|
||
&& strcasecmp (tilegx_elf_howto_table[i].name, r_name) == 0)
|
||
return &tilegx_elf_howto_table[i];
|
||
|
||
return NULL;
|
||
}
|
||
|
||
void
|
||
tilegx_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
|
||
arelent *cache_ptr,
|
||
Elf_Internal_Rela *dst)
|
||
{
|
||
unsigned int r_type = TILEGX_ELF_R_TYPE (dst->r_info);
|
||
|
||
if (r_type <= (unsigned int) R_TILEGX_IMM8_Y1_TLS_ADD)
|
||
cache_ptr->howto = &tilegx_elf_howto_table [r_type];
|
||
else if (r_type - R_TILEGX_GNU_VTINHERIT
|
||
<= (unsigned int) R_TILEGX_GNU_VTENTRY)
|
||
cache_ptr->howto
|
||
= &tilegx_elf_howto_table2 [r_type - R_TILEGX_GNU_VTINHERIT];
|
||
else
|
||
abort ();
|
||
}
|
||
|
||
typedef tilegx_bundle_bits (*tilegx_create_func)(int);
|
||
|
||
static const tilegx_create_func reloc_to_create_func[] =
|
||
{
|
||
/* The first twenty relocation types don't correspond to operands */
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
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_JumpOff_X1,
|
||
create_JumpOff_X1,
|
||
create_Imm8_X0,
|
||
create_Imm8_Y0,
|
||
create_Imm8_X1,
|
||
create_Imm8_Y1,
|
||
create_Dest_Imm8_X1,
|
||
create_MT_Imm14_X1,
|
||
create_MF_Imm14_X1,
|
||
create_BFStart_X0,
|
||
create_BFEnd_X0,
|
||
create_ShAmt_X0,
|
||
create_ShAmt_X1,
|
||
create_ShAmt_Y0,
|
||
create_ShAmt_Y1,
|
||
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_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_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
create_Imm16_X0,
|
||
create_Imm16_X1,
|
||
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,
|
||
};
|
||
|
||
static void
|
||
tilegx_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
|
||
{
|
||
const struct elf_backend_data *bed;
|
||
bfd_byte *loc;
|
||
|
||
bed = get_elf_backend_data (abfd);
|
||
loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
|
||
bed->s->swap_reloca_out (abfd, rel, loc);
|
||
}
|
||
|
||
/* PLT/GOT stuff */
|
||
|
||
/* The procedure linkage table starts with the following header:
|
||
|
||
ld_add r28, r27, 8
|
||
ld r27, r27
|
||
{
|
||
jr r27
|
||
info 10 ## SP not offset, return PC in LR
|
||
}
|
||
|
||
Subsequent entries are the following, jumping to the header at the end:
|
||
|
||
{
|
||
moveli r28, <_GLOBAL_OFFSET_TABLE_ - 1f + MY_GOT_OFFSET>
|
||
lnk r26
|
||
}
|
||
1:
|
||
{
|
||
moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
|
||
shl16insli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
|
||
}
|
||
{
|
||
add r28, r26, r28
|
||
shl16insli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
|
||
}
|
||
{
|
||
add r27, r26, r27
|
||
ld r28, r28
|
||
info 10 ## SP not offset, return PC in LR
|
||
}
|
||
{
|
||
shl16insli r29, zero, MY_PLT_INDEX
|
||
jr r28
|
||
}
|
||
|
||
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.
|
||
|
||
If the offset fits in 16 bits,
|
||
|
||
lnk r26
|
||
1:
|
||
{
|
||
addli r28, r26, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
|
||
moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
|
||
}
|
||
{
|
||
shl16insli r29, zero, MY_PLT_INDEX
|
||
ld r28, r28
|
||
}
|
||
{
|
||
add r27, r26, r27
|
||
jr r28
|
||
}
|
||
info 10 ## SP not offset, return PC in LR
|
||
|
||
For the purpose of backtracing, the procedure linkage table ends with the
|
||
following tail entry:
|
||
|
||
info 10 ## SP not offset, return PC in LR
|
||
|
||
The 32-bit versions are similar, with ld4s replacing ld, and offsets into
|
||
the GOT being multiples of 4 instead of 8.
|
||
|
||
*/
|
||
|
||
#define PLT_HEADER_SIZE_IN_BUNDLES 3
|
||
#define PLT_ENTRY_SIZE_IN_BUNDLES 5
|
||
#define PLT_TAIL_SIZE_IN_BUNDLES 1
|
||
|
||
#define PLT_HEADER_SIZE \
|
||
(PLT_HEADER_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
|
||
#define PLT_ENTRY_SIZE \
|
||
(PLT_ENTRY_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
|
||
#define PLT_TAIL_SIZE \
|
||
(PLT_TAIL_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
|
||
|
||
#define GOT_ENTRY_SIZE(htab) TILEGX_ELF_WORD_BYTES (htab)
|
||
|
||
#define GOTPLT_HEADER_SIZE(htab) (2 * GOT_ENTRY_SIZE (htab))
|
||
|
||
static const bfd_byte
|
||
tilegx64_plt0_entry[PLT_HEADER_SIZE] =
|
||
{
|
||
0x00, 0x30, 0x48, 0x51,
|
||
0x6e, 0x43, 0xa0, 0x18, /* { ld_add r28, r27, 8 } */
|
||
0x00, 0x30, 0xbc, 0x35,
|
||
0x00, 0x40, 0xde, 0x9e, /* { ld r27, r27 } */
|
||
0xff, 0xaf, 0x30, 0x40,
|
||
0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
|
||
};
|
||
|
||
static const bfd_byte
|
||
tilegx64_long_plt_entry[PLT_ENTRY_SIZE] =
|
||
{
|
||
0xdc, 0x0f, 0x00, 0x10,
|
||
0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
|
||
0xdb, 0x0f, 0x00, 0x10,
|
||
0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
|
||
0x9c, 0xc6, 0x0d, 0xd0,
|
||
0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
|
||
0x9b, 0xb6, 0xc5, 0xad,
|
||
0xff, 0x57, 0xe0, 0x8e, /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
|
||
0xdd, 0x0f, 0x00, 0x70,
|
||
0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
|
||
};
|
||
|
||
static const bfd_byte
|
||
tilegx64_short_plt_entry[PLT_ENTRY_SIZE] =
|
||
{
|
||
0x00, 0x30, 0x48, 0x51,
|
||
0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
|
||
0x9c, 0x06, 0x00, 0x90,
|
||
0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
|
||
0xdd, 0x0f, 0x00, 0x70,
|
||
0x8e, 0xeb, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld r28, r28 } */
|
||
0x9b, 0xb6, 0x0d, 0x50,
|
||
0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
|
||
0x00, 0x30, 0x48, 0xd1,
|
||
0xff, 0x57, 0x18, 0x18, /* { info 10 } */
|
||
};
|
||
|
||
/* Reuse an existing info 10 bundle. */
|
||
static const bfd_byte *const tilegx64_plt_tail_entry =
|
||
&tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
|
||
|
||
static const bfd_byte
|
||
tilegx32_plt0_entry[PLT_HEADER_SIZE] =
|
||
{
|
||
0x00, 0x30, 0x48, 0x51,
|
||
0x6e, 0x23, 0x58, 0x18, /* { ld4s_add r28, r27, 4 } */
|
||
0x00, 0x30, 0xbc, 0x35,
|
||
0x00, 0x40, 0xde, 0x9c, /* { ld4s r27, r27 } */
|
||
0xff, 0xaf, 0x30, 0x40,
|
||
0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
|
||
};
|
||
|
||
static const bfd_byte
|
||
tilegx32_long_plt_entry[PLT_ENTRY_SIZE] =
|
||
{
|
||
0xdc, 0x0f, 0x00, 0x10,
|
||
0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
|
||
0xdb, 0x0f, 0x00, 0x10,
|
||
0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
|
||
0x9c, 0xc6, 0x0d, 0xd0,
|
||
0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
|
||
0x9b, 0xb6, 0xc5, 0xad,
|
||
0xff, 0x57, 0xe0, 0x8c, /* { add r27, r26, r27 ; info 10 ; ld4s r28, r28 } */
|
||
0xdd, 0x0f, 0x00, 0x70,
|
||
0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
|
||
};
|
||
|
||
static const bfd_byte
|
||
tilegx32_short_plt_entry[PLT_ENTRY_SIZE] =
|
||
{
|
||
0x00, 0x30, 0x48, 0x51,
|
||
0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
|
||
0x9c, 0x06, 0x00, 0x90,
|
||
0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
|
||
0xdd, 0x0f, 0x00, 0x70,
|
||
0x8e, 0x9b, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld4s r28, r28 } */
|
||
0x9b, 0xb6, 0x0d, 0x50,
|
||
0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
|
||
0x00, 0x30, 0x48, 0xd1,
|
||
0xff, 0x57, 0x18, 0x18, /* { info 10 } */
|
||
};
|
||
|
||
/* Reuse an existing info 10 bundle. */
|
||
static const bfd_byte *const tilegx32_plt_tail_entry =
|
||
&tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
|
||
|
||
static int
|
||
tilegx_plt_entry_build (bfd *output_bfd,
|
||
struct tilegx_elf_link_hash_table *htab,
|
||
asection *splt, asection *sgotplt,
|
||
bfd_vma offset, bfd_vma *r_offset)
|
||
{
|
||
int plt_index = (offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
|
||
int got_offset = (plt_index * GOT_ENTRY_SIZE (htab)
|
||
+ GOTPLT_HEADER_SIZE (htab));
|
||
tilegx_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
|
||
- TILEGX_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);
|
||
|
||
const tilegx_bundle_bits *plt_entry = (tilegx_bundle_bits *)
|
||
(ABI_64_P (output_bfd) ?
|
||
(short_plt_entry ? tilegx64_short_plt_entry : tilegx64_long_plt_entry) :
|
||
(short_plt_entry ? tilegx32_short_plt_entry : tilegx32_long_plt_entry));
|
||
|
||
/* Copy the plt entry template. */
|
||
memcpy (splt->contents + offset, plt_entry, PLT_ENTRY_SIZE);
|
||
|
||
/* Write the immediate offsets. */
|
||
pc = (tilegx_bundle_bits *)(splt->contents + offset);
|
||
|
||
if (short_plt_entry)
|
||
{
|
||
/* { lnk r28 } */
|
||
pc++;
|
||
|
||
/* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; moveli r27, &GOTPLT[0] } */
|
||
*pc++ |= create_Imm16_X0 (dist_got_entry)
|
||
| create_Imm16_X1 (dist_got0);
|
||
|
||
/* { shl16insli r29, zero, MY_PLT_INDEX ; ld r28, r28 } */
|
||
*pc++ |= create_Imm16_X0 (plt_index);
|
||
}
|
||
else
|
||
{
|
||
/* { moveli r28, &GOTPLT[MY_GOT_INDEX] ; lnk r26 } */
|
||
*pc++ |= create_Imm16_X0 (dist_got_entry >> 16);
|
||
|
||
/* { moveli r27, &GOTPLT[0] ;
|
||
shl16insli r28, r28, &GOTPLT[MY_GOT_INDEX] } */
|
||
*pc++ |= create_Imm16_X0 (dist_got0 >> 16)
|
||
| create_Imm16_X1 (dist_got_entry);
|
||
|
||
/* { add r28, r26, r28 ; shl16insli r27, r27, &GOTPLT[0] } */
|
||
*pc++ |= create_Imm16_X1 (dist_got0);
|
||
|
||
/* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
|
||
pc++;
|
||
|
||
/* { shl16insli r29, zero, MY_GOT_INDEX ; jr r28 } */
|
||
*pc++ |= create_Imm16_X0 (plt_index);
|
||
}
|
||
|
||
/* Set the relocation offset. */
|
||
*r_offset = got_offset;
|
||
|
||
return plt_index;
|
||
}
|
||
|
||
/* Create an entry in an TILEGX 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 tilegx_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 tilegx_elf_link_hash_entry *eh;
|
||
|
||
eh = (struct tilegx_elf_link_hash_entry *) entry;
|
||
eh->dyn_relocs = NULL;
|
||
eh->tls_type = GOT_UNKNOWN;
|
||
}
|
||
|
||
return entry;
|
||
}
|
||
|
||
/* Create a TILEGX ELF linker hash table. */
|
||
|
||
struct bfd_link_hash_table *
|
||
tilegx_elf_link_hash_table_create (bfd *abfd)
|
||
{
|
||
struct tilegx_elf_link_hash_table *ret;
|
||
bfd_size_type amt = sizeof (struct tilegx_elf_link_hash_table);
|
||
|
||
ret = (struct tilegx_elf_link_hash_table *) bfd_zmalloc (amt);
|
||
if (ret == NULL)
|
||
return NULL;
|
||
|
||
#ifdef BFD64
|
||
if (ABI_64_P (abfd))
|
||
{
|
||
ret->bytes_per_word = 8;
|
||
ret->word_align_power = 3;
|
||
ret->bytes_per_rela = sizeof (Elf64_External_Rela);
|
||
ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF64;
|
||
ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD64;
|
||
ret->tpoff_reloc = R_TILEGX_TLS_TPOFF64;
|
||
ret->r_info = tilegx_elf_r_info_64;
|
||
ret->r_symndx = tilegx_elf_r_symndx_64;
|
||
ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
|
||
ret->put_word = tilegx_put_word_64;
|
||
}
|
||
else
|
||
#endif
|
||
{
|
||
ret->bytes_per_word = 4;
|
||
ret->word_align_power = 2;
|
||
ret->bytes_per_rela = sizeof (Elf32_External_Rela);
|
||
ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF32;
|
||
ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD32;
|
||
ret->tpoff_reloc = R_TILEGX_TLS_TPOFF32;
|
||
ret->r_info = tilegx_elf_r_info_32;
|
||
ret->r_symndx = tilegx_elf_r_symndx_32;
|
||
ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
|
||
ret->put_word = tilegx_put_word_32;
|
||
}
|
||
|
||
if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
|
||
sizeof (struct tilegx_elf_link_hash_entry),
|
||
TILEGX_ELF_DATA))
|
||
{
|
||
free (ret);
|
||
return NULL;
|
||
}
|
||
|
||
return &ret->elf.root;
|
||
}
|
||
|
||
/* Create the .got section. */
|
||
|
||
static bfd_boolean
|
||
tilegx_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_anyway_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_anyway_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_anyway_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 (tilegx_elf_hash_table (info));
|
||
}
|
||
|
||
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. */
|
||
|
||
bfd_boolean
|
||
tilegx_elf_create_dynamic_sections (bfd *dynobj,
|
||
struct bfd_link_info *info)
|
||
{
|
||
if (!tilegx_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. */
|
||
|
||
void
|
||
tilegx_elf_copy_indirect_symbol (struct bfd_link_info *info,
|
||
struct elf_link_hash_entry *dir,
|
||
struct elf_link_hash_entry *ind)
|
||
{
|
||
struct tilegx_elf_link_hash_entry *edir, *eind;
|
||
|
||
edir = (struct tilegx_elf_link_hash_entry *) dir;
|
||
eind = (struct tilegx_elf_link_hash_entry *) ind;
|
||
|
||
if (eind->dyn_relocs != NULL)
|
||
{
|
||
if (edir->dyn_relocs != NULL)
|
||
{
|
||
struct elf_dyn_relocs **pp;
|
||
struct 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 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
|
||
tilegx_tls_translate_to_le (int r_type)
|
||
{
|
||
switch (r_type)
|
||
{
|
||
case R_TILEGX_IMM16_X0_HW0_TLS_GD:
|
||
case R_TILEGX_IMM16_X0_HW0_TLS_IE:
|
||
return R_TILEGX_IMM16_X0_HW0_TLS_LE;
|
||
|
||
case R_TILEGX_IMM16_X1_HW0_TLS_GD:
|
||
case R_TILEGX_IMM16_X1_HW0_TLS_IE:
|
||
return R_TILEGX_IMM16_X1_HW0_TLS_LE;
|
||
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
|
||
return R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE;
|
||
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
|
||
return R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE;
|
||
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
|
||
return R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE;
|
||
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
|
||
return R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE;
|
||
}
|
||
return r_type;
|
||
}
|
||
|
||
static int
|
||
tilegx_tls_translate_to_ie (int r_type)
|
||
{
|
||
switch (r_type)
|
||
{
|
||
case R_TILEGX_IMM16_X0_HW0_TLS_GD:
|
||
case R_TILEGX_IMM16_X0_HW0_TLS_IE:
|
||
return R_TILEGX_IMM16_X0_HW0_TLS_IE;
|
||
|
||
case R_TILEGX_IMM16_X1_HW0_TLS_GD:
|
||
case R_TILEGX_IMM16_X1_HW0_TLS_IE:
|
||
return R_TILEGX_IMM16_X1_HW0_TLS_IE;
|
||
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
|
||
return R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE;
|
||
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
|
||
return R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE;
|
||
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
|
||
return R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE;
|
||
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
|
||
return R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE;
|
||
}
|
||
return r_type;
|
||
}
|
||
|
||
static int
|
||
tilegx_elf_tls_transition (struct bfd_link_info *info, int r_type,
|
||
int is_local, bfd_boolean disable_le_transition)
|
||
{
|
||
if (!bfd_link_executable (info))
|
||
return r_type;
|
||
|
||
if (is_local && !disable_le_transition)
|
||
return tilegx_tls_translate_to_le (r_type);
|
||
else
|
||
return tilegx_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. */
|
||
|
||
bfd_boolean
|
||
tilegx_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
|
||
asection *sec, const Elf_Internal_Rela *relocs)
|
||
{
|
||
struct tilegx_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;
|
||
bfd_boolean has_tls_gd_or_ie = FALSE, has_tls_add = FALSE;
|
||
|
||
if (bfd_link_relocatable (info))
|
||
return TRUE;
|
||
|
||
htab = tilegx_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_tilegx_elf (abfd) || num_relocs == 0);
|
||
|
||
if (htab->elf.dynobj == NULL)
|
||
htab->elf.dynobj = abfd;
|
||
|
||
rel_end = relocs + num_relocs;
|
||
|
||
/* Check whether to do optimization to transform TLS GD/IE
|
||
referehces to TLS LE. We disable it if we're linking with old
|
||
TLS code sequences that do not support such optimization. Old
|
||
TLS code sequences have tls_gd_call/tls_ie_load relocations but
|
||
no tls_add relocations. */
|
||
for (rel = relocs; rel < rel_end && !has_tls_add; rel++)
|
||
{
|
||
int r_type = TILEGX_ELF_R_TYPE (rel->r_info);
|
||
switch (r_type)
|
||
{
|
||
case R_TILEGX_TLS_GD_CALL:
|
||
case R_TILEGX_TLS_IE_LOAD:
|
||
has_tls_gd_or_ie = TRUE;
|
||
break;
|
||
case R_TILEGX_IMM8_X0_TLS_ADD:
|
||
case R_TILEGX_IMM8_Y0_TLS_ADD:
|
||
case R_TILEGX_IMM8_X1_TLS_ADD:
|
||
case R_TILEGX_IMM8_Y1_TLS_ADD:
|
||
has_tls_add = TRUE;
|
||
break;
|
||
}
|
||
}
|
||
|
||
sec->sec_flg0 = (has_tls_gd_or_ie && !has_tls_add);
|
||
htab->disable_le_transition |= sec->sec_flg0;
|
||
|
||
for (rel = relocs; rel < rel_end; rel++)
|
||
{
|
||
unsigned int r_type;
|
||
unsigned int r_symndx;
|
||
struct elf_link_hash_entry *h;
|
||
int tls_type;
|
||
|
||
r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
|
||
r_type = TILEGX_ELF_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;
|
||
}
|
||
|
||
r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
|
||
sec->sec_flg0);
|
||
switch (r_type)
|
||
{
|
||
case R_TILEGX_IMM16_X0_HW0_TLS_LE:
|
||
case R_TILEGX_IMM16_X1_HW0_TLS_LE:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
|
||
if (!bfd_link_executable (info))
|
||
goto r_tilegx_plt32;
|
||
break;
|
||
|
||
case R_TILEGX_IMM16_X0_HW0_TLS_GD:
|
||
case R_TILEGX_IMM16_X1_HW0_TLS_GD:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
|
||
BFD_ASSERT (bfd_link_pic (info));
|
||
tls_type = GOT_TLS_GD;
|
||
goto have_got_reference;
|
||
|
||
case R_TILEGX_IMM16_X0_HW0_TLS_IE:
|
||
case R_TILEGX_IMM16_X1_HW0_TLS_IE:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
|
||
tls_type = GOT_TLS_IE;
|
||
if (!bfd_link_executable (info))
|
||
info->flags |= DF_STATIC_TLS;
|
||
goto have_got_reference;
|
||
|
||
case R_TILEGX_IMM16_X0_HW0_GOT:
|
||
case R_TILEGX_IMM16_X1_HW0_GOT:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
|
||
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 = tilegx_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_tilegx_elf_local_got_tls_type (abfd)
|
||
= (char *) (local_got_refcounts + symtab_hdr->sh_info);
|
||
}
|
||
local_got_refcounts[r_symndx] += 1;
|
||
old_tls_type = _bfd_tilegx_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)
|
||
tilegx_elf_hash_entry (h)->tls_type = tls_type;
|
||
else
|
||
_bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
|
||
}
|
||
}
|
||
|
||
if (htab->elf.sgot == NULL)
|
||
{
|
||
if (!tilegx_elf_create_got_section (htab->elf.dynobj, info))
|
||
return FALSE;
|
||
}
|
||
break;
|
||
|
||
case R_TILEGX_TLS_GD_CALL:
|
||
if (!bfd_link_executable (info))
|
||
{
|
||
/* These are basically R_TILEGX_JUMPOFF_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_TILEGX_JUMPOFF_X1_PLT:
|
||
case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
|
||
/* 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_TILEGX_64_PCREL:
|
||
case R_TILEGX_32_PCREL:
|
||
case R_TILEGX_16_PCREL:
|
||
case R_TILEGX_8_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW0_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW0_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW1_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW1_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW2_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW2_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW3_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW3_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW2_LAST_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_TILEGX_64:
|
||
case R_TILEGX_32:
|
||
case R_TILEGX_16:
|
||
case R_TILEGX_8:
|
||
case R_TILEGX_HW0:
|
||
case R_TILEGX_HW1:
|
||
case R_TILEGX_HW2:
|
||
case R_TILEGX_HW3:
|
||
case R_TILEGX_HW0_LAST:
|
||
case R_TILEGX_HW1_LAST:
|
||
case R_TILEGX_HW2_LAST:
|
||
case R_TILEGX_COPY:
|
||
case R_TILEGX_GLOB_DAT:
|
||
case R_TILEGX_JMP_SLOT:
|
||
case R_TILEGX_RELATIVE:
|
||
case R_TILEGX_BROFF_X1:
|
||
case R_TILEGX_JUMPOFF_X1:
|
||
case R_TILEGX_IMM8_X0:
|
||
case R_TILEGX_IMM8_Y0:
|
||
case R_TILEGX_IMM8_X1:
|
||
case R_TILEGX_IMM8_Y1:
|
||
case R_TILEGX_DEST_IMM8_X1:
|
||
case R_TILEGX_MT_IMM14_X1:
|
||
case R_TILEGX_MF_IMM14_X1:
|
||
case R_TILEGX_MMSTART_X0:
|
||
case R_TILEGX_MMEND_X0:
|
||
case R_TILEGX_SHAMT_X0:
|
||
case R_TILEGX_SHAMT_X1:
|
||
case R_TILEGX_SHAMT_Y0:
|
||
case R_TILEGX_SHAMT_Y1:
|
||
case R_TILEGX_IMM16_X0_HW0:
|
||
case R_TILEGX_IMM16_X1_HW0:
|
||
case R_TILEGX_IMM16_X0_HW1:
|
||
case R_TILEGX_IMM16_X1_HW1:
|
||
case R_TILEGX_IMM16_X0_HW2:
|
||
case R_TILEGX_IMM16_X1_HW2:
|
||
case R_TILEGX_IMM16_X0_HW3:
|
||
case R_TILEGX_IMM16_X1_HW3:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST:
|
||
case R_TILEGX_IMM16_X0_HW2_LAST:
|
||
case R_TILEGX_IMM16_X1_HW2_LAST:
|
||
if (h != NULL)
|
||
h->non_got_ref = 1;
|
||
|
||
r_tilegx_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
|
||
&& (! tilegx_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 elf_dyn_relocs *p;
|
||
struct 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, htab->word_align_power, 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 tilegx_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 elf_dyn_relocs **) vpp;
|
||
}
|
||
|
||
p = *head;
|
||
if (p == NULL || p->sec != sec)
|
||
{
|
||
bfd_size_type amt = sizeof *p;
|
||
p = ((struct 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 (tilegx_elf_howto_table[r_type].pc_relative)
|
||
p->pc_count += 1;
|
||
}
|
||
|
||
break;
|
||
|
||
case R_TILEGX_GNU_VTINHERIT:
|
||
if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
||
return FALSE;
|
||
break;
|
||
|
||
case R_TILEGX_GNU_VTENTRY:
|
||
if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
||
return FALSE;
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
|
||
asection *
|
||
tilegx_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 (TILEGX_ELF_R_TYPE (rel->r_info))
|
||
{
|
||
case R_TILEGX_GNU_VTINHERIT:
|
||
case R_TILEGX_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))
|
||
{
|
||
struct bfd_link_hash_entry *bh;
|
||
|
||
switch (TILEGX_ELF_R_TYPE (rel->r_info))
|
||
{
|
||
case R_TILEGX_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. */
|
||
bh = NULL;
|
||
if (! _bfd_generic_link_add_one_symbol (info, sec->owner,
|
||
"__tls_get_addr", 0,
|
||
bfd_und_section_ptr,
|
||
0, NULL, FALSE,
|
||
FALSE, &bh))
|
||
return NULL;
|
||
h = (struct elf_link_hash_entry *) bh;
|
||
BFD_ASSERT (h != NULL);
|
||
h->mark = 1;
|
||
if (h->is_weakalias)
|
||
weakdef (h)->mark = 1;
|
||
sym = NULL;
|
||
}
|
||
}
|
||
|
||
return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
|
||
}
|
||
|
||
/* Find dynamic relocs for H that apply to read-only sections. */
|
||
|
||
static asection *
|
||
readonly_dynrelocs (struct elf_link_hash_entry *h)
|
||
{
|
||
struct elf_dyn_relocs *p;
|
||
|
||
for (p = tilegx_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
|
||
{
|
||
asection *s = p->sec->output_section;
|
||
|
||
if (s != NULL && (s->flags & SEC_READONLY) != 0)
|
||
return p->sec;
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
/* 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. */
|
||
|
||
bfd_boolean
|
||
tilegx_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
|
||
struct elf_link_hash_entry *h)
|
||
{
|
||
struct tilegx_elf_link_hash_table *htab;
|
||
bfd *dynobj;
|
||
asection *s, *srel;
|
||
|
||
htab = tilegx_elf_hash_table (info);
|
||
BFD_ASSERT (htab != NULL);
|
||
|
||
dynobj = htab->elf.dynobj;
|
||
|
||
/* Make sure we know what is going on here. */
|
||
BFD_ASSERT (dynobj != NULL
|
||
&& (h->needs_plt
|
||
|| h->is_weakalias
|
||
|| (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_TILEGX_JUMPOFF_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_TILEGX_JUMPOFF_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->is_weakalias)
|
||
{
|
||
struct elf_link_hash_entry *def = weakdef (h);
|
||
BFD_ASSERT (def->root.type == bfd_link_hash_defined);
|
||
h->root.u.def.section = def->root.u.def.section;
|
||
h->root.u.def.value = def->root.u.def.value;
|
||
return TRUE;
|
||
}
|
||
|
||
/* 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;
|
||
}
|
||
|
||
/* If we don't find any dynamic relocs in read-only sections, then
|
||
we'll be keeping the dynamic relocs and avoiding the copy reloc. */
|
||
if (!readonly_dynrelocs (h))
|
||
{
|
||
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_TILEGX_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 += TILEGX_ELF_RELA_BYTES (htab);
|
||
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 tilegx_elf_link_hash_table *htab;
|
||
struct tilegx_elf_link_hash_entry *eh;
|
||
struct elf_dyn_relocs *p;
|
||
|
||
if (h->root.type == bfd_link_hash_indirect)
|
||
return TRUE;
|
||
|
||
info = (struct bfd_link_info *) inf;
|
||
htab = tilegx_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 and tail. */
|
||
if (s->size == 0)
|
||
{
|
||
s->size = PLT_ENTRY_SIZE;
|
||
}
|
||
|
||
h->plt.offset = s->size - PLT_ENTRY_SIZE + PLT_HEADER_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 (htab);
|
||
|
||
/* We also need to make an entry in the .rela.plt section. */
|
||
htab->elf.srelplt->size += TILEGX_ELF_RELA_BYTES (htab);
|
||
}
|
||
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
|
||
&& !htab->disable_le_transition
|
||
&& bfd_link_executable (info)
|
||
&& h->dynindx == -1
|
||
&& tilegx_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 = tilegx_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 += TILEGX_ELF_WORD_BYTES (htab);
|
||
/* TLS_GD entries need 2 consecutive GOT slots. */
|
||
if (tls_type == GOT_TLS_GD)
|
||
s->size += TILEGX_ELF_WORD_BYTES (htab);
|
||
dyn = htab->elf.dynamic_sections_created;
|
||
/* TLS_IE needs one dynamic relocation,
|
||
TLS_GD 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 * TILEGX_ELF_RELA_BYTES (htab);
|
||
else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
|
||
bfd_link_pic (info),
|
||
h))
|
||
htab->elf.srelgot->size += TILEGX_ELF_RELA_BYTES (htab);
|
||
}
|
||
else
|
||
h->got.offset = (bfd_vma) -1;
|
||
|
||
eh = (struct tilegx_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 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
|
||
|| UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
|
||
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 * TILEGX_ELF_RELA_BYTES (htab);
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Set DF_TEXTREL if we find any dynamic relocs that apply to
|
||
read-only sections. */
|
||
|
||
static bfd_boolean
|
||
maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
|
||
{
|
||
asection *sec;
|
||
|
||
if (h->root.type == bfd_link_hash_indirect)
|
||
return TRUE;
|
||
|
||
sec = readonly_dynrelocs (h);
|
||
if (sec != NULL)
|
||
{
|
||
struct bfd_link_info *info = (struct bfd_link_info *) info_p;
|
||
|
||
info->flags |= DF_TEXTREL;
|
||
info->callbacks->minfo
|
||
(_("%B: dynamic relocation against `%T' in read-only section `%A'\n"),
|
||
sec->owner, h->root.root.string, sec);
|
||
|
||
/* 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. */
|
||
|
||
bfd_boolean
|
||
tilegx_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);
|
||
}
|
||
|
||
bfd_boolean
|
||
tilegx_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
|
||
struct bfd_link_info *info)
|
||
{
|
||
struct tilegx_elf_link_hash_table *htab;
|
||
bfd *dynobj;
|
||
asection *s;
|
||
bfd *ibfd;
|
||
|
||
htab = tilegx_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 = strlen (htab->dynamic_interpreter) + 1;
|
||
s->contents = (unsigned char *) htab->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_tilegx_elf (ibfd))
|
||
continue;
|
||
|
||
for (s = ibfd->sections; s != NULL; s = s->next)
|
||
{
|
||
struct 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 * TILEGX_ELF_RELA_BYTES (htab);
|
||
if ((p->sec->output_section->flags & SEC_READONLY) != 0)
|
||
{
|
||
info->flags |= DF_TEXTREL;
|
||
|
||
info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
|
||
p->sec->owner, p->sec);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
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_tilegx_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 += TILEGX_ELF_WORD_BYTES (htab);
|
||
if (*local_tls_type == GOT_TLS_GD)
|
||
s->size += TILEGX_ELF_WORD_BYTES (htab);
|
||
if (bfd_link_pic (info)
|
||
|| *local_tls_type == GOT_TLS_GD
|
||
|| *local_tls_type == GOT_TLS_IE)
|
||
srel->size += TILEGX_ELF_RELA_BYTES (htab);
|
||
}
|
||
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
|
||
== (unsigned)GOTPLT_HEADER_SIZE (htab))
|
||
&& (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 tilegx_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, TILEGX_ELF_RELA_BYTES (htab)))
|
||
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, maybe_set_textrel, 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 @tpoff relocation. */
|
||
|
||
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);
|
||
}
|
||
|
||
/* Copy SIZE bits from FROM to TO at address ADDR. */
|
||
|
||
static void
|
||
tilegx_copy_bits (bfd_byte *addr, int from, int to, int size)
|
||
{
|
||
int i;
|
||
for (i = 0; i < size; i++)
|
||
{
|
||
int from_byte = (from + i) / 8;
|
||
int from_bit = (from + i) % 8;
|
||
int to_byte = (to + i) / 8;
|
||
int to_bit = (to + i) % 8;
|
||
bfd_byte to_mask = 1 << to_bit;
|
||
addr[to_byte] = (addr[to_byte] & ~to_mask)
|
||
| ((addr[from_byte] >> from_bit << to_bit) & to_mask);
|
||
}
|
||
}
|
||
|
||
/* Replace the MASK bits in ADDR with those in INSN, for the next
|
||
TILEGX_BUNDLE_SIZE_IN_BYTES bytes. */
|
||
|
||
static void
|
||
tilegx_replace_insn (bfd_byte *addr, const bfd_byte *mask,
|
||
const bfd_byte *insn)
|
||
{
|
||
int i;
|
||
for (i = 0; i < TILEGX_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, 0x3f
|
||
};
|
||
|
||
/* 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, 0x3f
|
||
};
|
||
|
||
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, 0x3c
|
||
};
|
||
|
||
/* Mask to extract the bits corresponding to an instruction in a
|
||
specific pipe of a bundle, minus the register operands. */
|
||
static const bfd_byte insn_mask_X0_no_operand[] = {
|
||
0x00, 0x00, 0xfc, 0x7f, 0x00, 0x00, 0x00, 0x00
|
||
};
|
||
|
||
static const bfd_byte insn_mask_X1_no_operand[] = {
|
||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x3f
|
||
};
|
||
|
||
static const bfd_byte insn_mask_Y0_no_operand[] = {
|
||
0x00, 0x00, 0x0c, 0x78, 0x00, 0x00, 0x00, 0x00
|
||
};
|
||
|
||
static const bfd_byte insn_mask_Y1_no_operand[] = {
|
||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x3c
|
||
};
|
||
|
||
/* Various instructions synthesized to support tls references. */
|
||
|
||
/* ld r0, r0 in the X1 pipe, used for tls ie. */
|
||
static const bfd_byte insn_tls_ie_ld_X1[] = {
|
||
0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x6a, 0x28
|
||
};
|
||
|
||
/* ld4s r0, r0 in the X1 pipe, used for tls ie. */
|
||
static const bfd_byte insn_tls_ie_ld4s_X1[] = {
|
||
0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x6a, 0x28
|
||
};
|
||
|
||
/* add r0, r0, tp in various pipes, used for tls ie. */
|
||
static const bfd_byte insn_tls_ie_add_X0X1[] = {
|
||
0x00, 0x50, 0x0f, 0x50, 0x00, 0xa8, 0x07, 0x28
|
||
};
|
||
static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
|
||
0x00, 0x50, 0x27, 0x2c, 0x00, 0xa8, 0x13, 0x9a
|
||
};
|
||
|
||
/* addx r0, r0, tp in various pipes, used for tls ie. */
|
||
static const bfd_byte insn_tls_ie_addx_X0X1[] = {
|
||
0x00, 0x50, 0x0b, 0x50, 0x00, 0xa8, 0x05, 0x28
|
||
};
|
||
static const bfd_byte insn_tls_ie_addx_Y0Y1[] = {
|
||
0x00, 0x50, 0x03, 0x2c, 0x00, 0xa8, 0x01, 0x9a
|
||
};
|
||
|
||
/* move r0, r0 in various pipes, used for tls gd. */
|
||
static const bfd_byte insn_tls_gd_add_X0X1[] = {
|
||
0x00, 0xf0, 0x07, 0x51, 0x00, 0xf8, 0x3b, 0x28
|
||
};
|
||
static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
|
||
0x00, 0xf0, 0x0b, 0x54, 0x00, 0xf8, 0x05, 0xae
|
||
};
|
||
|
||
static const bfd_byte *insn_move_X0X1 = insn_tls_gd_add_X0X1;
|
||
static const bfd_byte *insn_move_Y0Y1 = insn_tls_gd_add_Y0Y1;
|
||
|
||
static const bfd_byte *insn_add_X0X1 = insn_tls_ie_add_X0X1;
|
||
static const bfd_byte *insn_add_Y0Y1 = insn_tls_ie_add_Y0Y1;
|
||
|
||
static const bfd_byte *insn_addx_X0X1 = insn_tls_ie_addx_X0X1;
|
||
static const bfd_byte *insn_addx_Y0Y1 = insn_tls_ie_addx_Y0Y1;
|
||
|
||
/* Relocate an TILEGX 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. */
|
||
|
||
bfd_boolean
|
||
tilegx_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 tilegx_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 = tilegx_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;
|
||
tilegx_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 resolved_to_zero;
|
||
bfd_boolean unresolved_reloc;
|
||
|
||
r_type = TILEGX_ELF_R_TYPE (rel->r_info);
|
||
if (r_type == R_TILEGX_GNU_VTINHERIT
|
||
|| r_type == R_TILEGX_GNU_VTENTRY)
|
||
continue;
|
||
|
||
if ((unsigned int)r_type >= ARRAY_SIZE (tilegx_elf_howto_table))
|
||
return _bfd_unrecognized_reloc (input_bfd, input_section, r_type);
|
||
|
||
howto = tilegx_elf_howto_table + r_type;
|
||
|
||
/* This is a final link. */
|
||
r_symndx = TILEGX_ELF_R_SYMNDX (htab, 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_TILEGX_TLS_GD_CALL:
|
||
case R_TILEGX_IMM8_X0_TLS_GD_ADD:
|
||
case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
|
||
case R_TILEGX_IMM8_X1_TLS_GD_ADD:
|
||
case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
|
||
case R_TILEGX_IMM8_X0_TLS_ADD:
|
||
case R_TILEGX_IMM8_Y0_TLS_ADD:
|
||
case R_TILEGX_IMM8_X1_TLS_ADD:
|
||
case R_TILEGX_IMM8_Y1_TLS_ADD:
|
||
tls_type = GOT_UNKNOWN;
|
||
if (h == NULL && local_got_offsets)
|
||
tls_type =
|
||
_bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
|
||
else if (h != NULL)
|
||
tls_type = tilegx_elf_hash_entry(h)->tls_type;
|
||
|
||
is_tls_iele = (bfd_link_executable (info) || tls_type == GOT_TLS_IE);
|
||
is_tls_le = is_tls_iele && (!input_section->sec_flg0
|
||
&& bfd_link_executable (info)
|
||
&& (h == NULL || h->dynindx == -1));
|
||
|
||
if (r_type == R_TILEGX_TLS_GD_CALL)
|
||
{
|
||
if (is_tls_le)
|
||
{
|
||
/* GD -> LE */
|
||
tilegx_replace_insn (contents + rel->r_offset,
|
||
insn_mask_X1, insn_move_X0X1);
|
||
continue;
|
||
}
|
||
else if (is_tls_iele)
|
||
{
|
||
/* GD -> IE */
|
||
if (ABI_64_P (output_bfd))
|
||
tilegx_replace_insn (contents + rel->r_offset,
|
||
insn_mask_X1, insn_tls_ie_ld_X1);
|
||
else
|
||
tilegx_replace_insn (contents + rel->r_offset,
|
||
insn_mask_X1, insn_tls_ie_ld4s_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_TILEGX_JUMPOFF_X1_PLT;
|
||
howto = tilegx_elf_howto_table + r_type;
|
||
}
|
||
else if (r_type == R_TILEGX_IMM8_X0_TLS_ADD
|
||
|| r_type == R_TILEGX_IMM8_X1_TLS_ADD
|
||
|| r_type == R_TILEGX_IMM8_Y0_TLS_ADD
|
||
|| r_type == R_TILEGX_IMM8_Y1_TLS_ADD)
|
||
{
|
||
bfd_boolean is_pipe0 =
|
||
(r_type == R_TILEGX_IMM8_X0_TLS_ADD
|
||
|| r_type == R_TILEGX_IMM8_Y0_TLS_ADD);
|
||
bfd_boolean is_X0X1 =
|
||
(r_type == R_TILEGX_IMM8_X0_TLS_ADD
|
||
|| r_type == R_TILEGX_IMM8_X1_TLS_ADD);
|
||
int dest_begin = is_pipe0 ? 0 : 31;
|
||
int src_begin;
|
||
const bfd_byte *insn;
|
||
const bfd_byte *mask = NULL;
|
||
|
||
if (is_tls_le)
|
||
{
|
||
/* 1. copy dest operand into the first source operand.
|
||
2. change the opcode to "move". */
|
||
src_begin = is_pipe0 ? 6 : 37;
|
||
insn = is_X0X1 ? insn_move_X0X1 : insn_move_Y0Y1;
|
||
|
||
switch (r_type)
|
||
{
|
||
case R_TILEGX_IMM8_X0_TLS_ADD:
|
||
mask = insn_mask_X0_no_dest_no_srca;
|
||
break;
|
||
case R_TILEGX_IMM8_X1_TLS_ADD:
|
||
mask = insn_mask_X1_no_dest_no_srca;
|
||
break;
|
||
case R_TILEGX_IMM8_Y0_TLS_ADD:
|
||
mask = insn_mask_Y0_no_dest_no_srca;
|
||
break;
|
||
case R_TILEGX_IMM8_Y1_TLS_ADD:
|
||
mask = insn_mask_Y1_no_dest_no_srca;
|
||
break;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* 1. copy dest operand into the second source operand.
|
||
2. change the opcode to "add". */
|
||
src_begin = is_pipe0 ? 12 : 43;
|
||
if (ABI_64_P (output_bfd))
|
||
insn = is_X0X1 ? insn_add_X0X1 : insn_add_Y0Y1;
|
||
else
|
||
insn = is_X0X1 ? insn_addx_X0X1 : insn_addx_Y0Y1;
|
||
|
||
switch (r_type)
|
||
{
|
||
case R_TILEGX_IMM8_X0_TLS_ADD:
|
||
mask = insn_mask_X0_no_operand;
|
||
break;
|
||
case R_TILEGX_IMM8_X1_TLS_ADD:
|
||
mask = insn_mask_X1_no_operand;
|
||
break;
|
||
case R_TILEGX_IMM8_Y0_TLS_ADD:
|
||
mask = insn_mask_Y0_no_operand;
|
||
break;
|
||
case R_TILEGX_IMM8_Y1_TLS_ADD:
|
||
mask = insn_mask_Y1_no_operand;
|
||
break;
|
||
}
|
||
}
|
||
|
||
tilegx_copy_bits (contents + rel->r_offset, dest_begin,
|
||
src_begin, 6);
|
||
tilegx_replace_insn (contents + rel->r_offset, mask, insn);
|
||
|
||
continue;
|
||
}
|
||
else
|
||
{
|
||
const bfd_byte *mask = NULL;
|
||
const bfd_byte *add_insn = NULL;
|
||
bfd_boolean is_64bit = ABI_64_P (output_bfd);
|
||
|
||
switch (r_type)
|
||
{
|
||
case R_TILEGX_IMM8_X0_TLS_GD_ADD:
|
||
add_insn = is_tls_iele
|
||
? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
|
||
: insn_tls_gd_add_X0X1;
|
||
mask = insn_mask_X0_no_dest_no_srca;
|
||
break;
|
||
case R_TILEGX_IMM8_X1_TLS_GD_ADD:
|
||
add_insn = is_tls_iele
|
||
? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
|
||
: insn_tls_gd_add_X0X1;
|
||
mask = insn_mask_X1_no_dest_no_srca;
|
||
break;
|
||
case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
|
||
add_insn = is_tls_iele
|
||
? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
|
||
: insn_tls_gd_add_Y0Y1;
|
||
mask = insn_mask_Y0_no_dest_no_srca;
|
||
break;
|
||
case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
|
||
add_insn = is_tls_iele
|
||
? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
|
||
: insn_tls_gd_add_Y0Y1;
|
||
mask = insn_mask_Y1_no_dest_no_srca;
|
||
break;
|
||
}
|
||
|
||
tilegx_replace_insn (contents + rel->r_offset, mask, add_insn);
|
||
|
||
continue;
|
||
}
|
||
break;
|
||
case R_TILEGX_TLS_IE_LOAD:
|
||
if (!input_section->sec_flg0
|
||
&& bfd_link_executable (info)
|
||
&& (h == NULL || h->dynindx == -1))
|
||
{
|
||
/* IE -> LE */
|
||
tilegx_replace_insn (contents + rel->r_offset,
|
||
insn_mask_X1_no_dest_no_srca,
|
||
insn_move_X0X1);
|
||
}
|
||
else
|
||
{
|
||
/* IE -> IE */
|
||
if (ABI_64_P (output_bfd))
|
||
tilegx_replace_insn (contents + rel->r_offset,
|
||
insn_mask_X1_no_dest_no_srca,
|
||
insn_tls_ie_ld_X1);
|
||
else
|
||
tilegx_replace_insn (contents + rel->r_offset,
|
||
insn_mask_X1_no_dest_no_srca,
|
||
insn_tls_ie_ld4s_X1);
|
||
}
|
||
continue;
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
resolved_to_zero = (h != NULL
|
||
&& UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
|
||
|
||
switch (r_type)
|
||
{
|
||
case R_TILEGX_IMM16_X0_HW0_GOT:
|
||
case R_TILEGX_IMM16_X1_HW0_GOT:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
|
||
/* 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 8 for 64-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
|
||
{
|
||
TILEGX_ELF_PUT_WORD (htab, 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 8 on 64-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_TILEGX_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 =
|
||
TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
|
||
outrel.r_addend = relocation;
|
||
relocation = 0;
|
||
tilegx_elf_append_rela (output_bfd, s, &outrel);
|
||
}
|
||
|
||
TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
|
||
htab->elf.sgot->contents + off);
|
||
local_got_offsets[r_symndx] |= 1;
|
||
}
|
||
}
|
||
relocation = off - got_base;
|
||
break;
|
||
|
||
case R_TILEGX_JUMPOFF_X1_PLT:
|
||
case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
|
||
/* 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_TILEGX_64_PCREL:
|
||
case R_TILEGX_32_PCREL:
|
||
case R_TILEGX_16_PCREL:
|
||
case R_TILEGX_8_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW0_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW0_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW1_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW1_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW2_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW2_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW3_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW3_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
|
||
case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
|
||
case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
|
||
if (h != NULL
|
||
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
||
break;
|
||
/* Fall through. */
|
||
case R_TILEGX_64:
|
||
case R_TILEGX_32:
|
||
case R_TILEGX_16:
|
||
case R_TILEGX_8:
|
||
case R_TILEGX_HW0:
|
||
case R_TILEGX_HW1:
|
||
case R_TILEGX_HW2:
|
||
case R_TILEGX_HW3:
|
||
case R_TILEGX_HW0_LAST:
|
||
case R_TILEGX_HW1_LAST:
|
||
case R_TILEGX_HW2_LAST:
|
||
case R_TILEGX_COPY:
|
||
case R_TILEGX_GLOB_DAT:
|
||
case R_TILEGX_JMP_SLOT:
|
||
case R_TILEGX_RELATIVE:
|
||
case R_TILEGX_BROFF_X1:
|
||
case R_TILEGX_JUMPOFF_X1:
|
||
case R_TILEGX_IMM8_X0:
|
||
case R_TILEGX_IMM8_Y0:
|
||
case R_TILEGX_IMM8_X1:
|
||
case R_TILEGX_IMM8_Y1:
|
||
case R_TILEGX_DEST_IMM8_X1:
|
||
case R_TILEGX_MT_IMM14_X1:
|
||
case R_TILEGX_MF_IMM14_X1:
|
||
case R_TILEGX_MMSTART_X0:
|
||
case R_TILEGX_MMEND_X0:
|
||
case R_TILEGX_SHAMT_X0:
|
||
case R_TILEGX_SHAMT_X1:
|
||
case R_TILEGX_SHAMT_Y0:
|
||
case R_TILEGX_SHAMT_Y1:
|
||
case R_TILEGX_IMM16_X0_HW0:
|
||
case R_TILEGX_IMM16_X1_HW0:
|
||
case R_TILEGX_IMM16_X0_HW1:
|
||
case R_TILEGX_IMM16_X1_HW1:
|
||
case R_TILEGX_IMM16_X0_HW2:
|
||
case R_TILEGX_IMM16_X1_HW2:
|
||
case R_TILEGX_IMM16_X0_HW3:
|
||
case R_TILEGX_IMM16_X1_HW3:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST:
|
||
case R_TILEGX_IMM16_X0_HW2_LAST:
|
||
case R_TILEGX_IMM16_X1_HW2_LAST:
|
||
if ((input_section->flags & SEC_ALLOC) == 0)
|
||
break;
|
||
|
||
if ((bfd_link_pic (info)
|
||
&& (h == NULL
|
||
|| (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|
||
&& !resolved_to_zero)
|
||
|| 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_TILEGX_64_PCREL:
|
||
case R_TILEGX_32_PCREL:
|
||
case R_TILEGX_16_PCREL:
|
||
case R_TILEGX_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_TILEGX_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 = TILEGX_ELF_R_INFO (htab, rel, h->dynindx, r_type);
|
||
outrel.r_addend = rel->r_addend;
|
||
}
|
||
else
|
||
{
|
||
if (r_type == R_TILEGX_32 || r_type == R_TILEGX_64)
|
||
{
|
||
outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0,
|
||
R_TILEGX_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 = TILEGX_ELF_R_INFO (htab, rel, indx,
|
||
r_type);
|
||
}
|
||
}
|
||
|
||
tilegx_elf_append_rela (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_TILEGX_IMM16_X0_HW0_TLS_LE:
|
||
case R_TILEGX_IMM16_X1_HW0_TLS_LE:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
|
||
if (!bfd_link_executable (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 = TILEGX_ELF_R_INFO (htab, NULL, 0, r_type);
|
||
outrel.r_addend = relocation - dtpoff_base (info)
|
||
+ rel->r_addend;
|
||
}
|
||
|
||
tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
|
||
continue;
|
||
}
|
||
relocation = tpoff (info, relocation);
|
||
break;
|
||
|
||
case R_TILEGX_IMM16_X0_HW0_TLS_GD:
|
||
case R_TILEGX_IMM16_X1_HW0_TLS_GD:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X0_HW0_TLS_IE:
|
||
case R_TILEGX_IMM16_X1_HW0_TLS_IE:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
|
||
r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
|
||
input_section->sec_flg0);
|
||
tls_type = GOT_UNKNOWN;
|
||
if (h == NULL && local_got_offsets)
|
||
tls_type =
|
||
_bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
|
||
else if (h != NULL)
|
||
{
|
||
tls_type = tilegx_elf_hash_entry(h)->tls_type;
|
||
if (bfd_link_executable (info)
|
||
&& h->dynindx == -1
|
||
&& tls_type == GOT_TLS_IE)
|
||
r_type = (!input_section->sec_flg0
|
||
? tilegx_tls_translate_to_le (r_type)
|
||
: tilegx_tls_translate_to_ie (r_type));
|
||
}
|
||
|
||
if (tls_type == GOT_TLS_IE)
|
||
r_type = tilegx_tls_translate_to_ie (r_type);
|
||
|
||
if (r_type == R_TILEGX_IMM16_X0_HW0_TLS_LE
|
||
|| r_type == R_TILEGX_IMM16_X1_HW0_TLS_LE
|
||
|| r_type == R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
|
||
|| r_type == R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
|
||
|| r_type == R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
|
||
|| r_type == R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE)
|
||
{
|
||
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_TILEGX_IMM16_X0_HW0_TLS_IE:
|
||
case R_TILEGX_IMM16_X1_HW0_TLS_IE:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
|
||
if (need_relocs) {
|
||
TILEGX_ELF_PUT_WORD (htab, 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 = TILEGX_ELF_R_INFO (htab, NULL, indx,
|
||
TILEGX_ELF_TPOFF_RELOC (htab));
|
||
tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
|
||
} else {
|
||
TILEGX_ELF_PUT_WORD (htab, output_bfd,
|
||
tpoff (info, relocation),
|
||
htab->elf.sgot->contents + off);
|
||
}
|
||
break;
|
||
|
||
case R_TILEGX_IMM16_X0_HW0_TLS_GD:
|
||
case R_TILEGX_IMM16_X1_HW0_TLS_GD:
|
||
case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
|
||
case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
|
||
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 = TILEGX_ELF_R_INFO (htab, NULL, indx,
|
||
TILEGX_ELF_DTPMOD_RELOC (htab));
|
||
TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
|
||
htab->elf.sgot->contents + off);
|
||
tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
|
||
if (indx == 0)
|
||
{
|
||
BFD_ASSERT (! unresolved_reloc);
|
||
TILEGX_ELF_PUT_WORD (htab, output_bfd,
|
||
relocation - dtpoff_base (info),
|
||
(htab->elf.sgot->contents + off +
|
||
TILEGX_ELF_WORD_BYTES (htab)));
|
||
}
|
||
else
|
||
{
|
||
TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
|
||
(htab->elf.sgot->contents + off +
|
||
TILEGX_ELF_WORD_BYTES (htab)));
|
||
outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
|
||
TILEGX_ELF_DTPOFF_RELOC (htab));
|
||
outrel.r_offset += TILEGX_ELF_WORD_BYTES (htab);
|
||
tilegx_elf_append_rela (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. */
|
||
TILEGX_ELF_PUT_WORD (htab, output_bfd, 1,
|
||
htab->elf.sgot->contents + off );
|
||
TILEGX_ELF_PUT_WORD (htab, output_bfd,
|
||
relocation - dtpoff_base (info),
|
||
htab->elf.sgot->contents + off +
|
||
TILEGX_ELF_WORD_BYTES (htab));
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (off >= (bfd_vma) -2)
|
||
abort ();
|
||
|
||
relocation = off - got_base;
|
||
unresolved_reloc = FALSE;
|
||
howto = tilegx_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+%#Lx): unresolvable %s relocation against symbol `%s'"),
|
||
input_bfd,
|
||
input_section,
|
||
rel->r_offset,
|
||
howto->name,
|
||
h->root.root.string);
|
||
|
||
r = bfd_reloc_continue;
|
||
|
||
/* 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,
|
||
TILEGX_ELF_WORD_BYTES (htab) * 8,
|
||
relocation);
|
||
|
||
/*
|
||
* Write the relocated value out into the raw section data.
|
||
* Don't put a relocation out in the .rela section.
|
||
*/
|
||
tilegx_bundle_bits mask = create_func(-1);
|
||
tilegx_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. */
|
||
|
||
bfd_boolean
|
||
tilegx_elf_finish_dynamic_symbol (bfd *output_bfd,
|
||
struct bfd_link_info *info,
|
||
struct elf_link_hash_entry *h,
|
||
Elf_Internal_Sym *sym)
|
||
{
|
||
struct tilegx_elf_link_hash_table *htab;
|
||
|
||
htab = tilegx_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;
|
||
const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
|
||
|
||
|
||
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 = tilegx_plt_entry_build (output_bfd, htab, 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. */
|
||
TILEGX_ELF_PUT_WORD (htab, 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 = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_JMP_SLOT);
|
||
|
||
loc = srela->contents + rela_index * TILEGX_ELF_RELA_BYTES (htab);
|
||
bed->s->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
|
||
&& tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_GD
|
||
&& tilegx_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 = TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
|
||
rela.r_addend = (h->root.u.def.value
|
||
+ sec->output_section->vma
|
||
+ sec->output_offset);
|
||
}
|
||
else
|
||
{
|
||
rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_GLOB_DAT);
|
||
rela.r_addend = 0;
|
||
}
|
||
|
||
TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
|
||
sgot->contents + (h->got.offset & ~(bfd_vma) 1));
|
||
tilegx_elf_append_rela (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);
|
||
|
||
if (h->root.u.def.section == htab->elf.sdynrelro)
|
||
s = htab->elf.sreldynrelro;
|
||
else
|
||
s = htab->elf.srelbss;
|
||
BFD_ASSERT (s != NULL);
|
||
|
||
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 = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_COPY);
|
||
rela.r_addend = 0;
|
||
tilegx_elf_append_rela (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
|
||
tilegx_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
|
||
bfd *dynobj, asection *sdyn,
|
||
asection *splt ATTRIBUTE_UNUSED)
|
||
{
|
||
struct tilegx_elf_link_hash_table *htab;
|
||
const struct elf_backend_data *bed;
|
||
bfd_byte *dyncon, *dynconend;
|
||
size_t dynsize;
|
||
|
||
htab = tilegx_elf_hash_table (info);
|
||
BFD_ASSERT (htab != NULL);
|
||
bed = get_elf_backend_data (output_bfd);
|
||
dynsize = bed->s->sizeof_dyn;
|
||
dynconend = sdyn->contents + sdyn->size;
|
||
|
||
for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
|
||
{
|
||
Elf_Internal_Dyn dyn;
|
||
asection *s;
|
||
|
||
bed->s->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;
|
||
}
|
||
|
||
bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
|
||
}
|
||
return TRUE;
|
||
}
|
||
|
||
bfd_boolean
|
||
tilegx_elf_finish_dynamic_sections (bfd *output_bfd,
|
||
struct bfd_link_info *info)
|
||
{
|
||
bfd *dynobj;
|
||
asection *sdyn;
|
||
struct tilegx_elf_link_hash_table *htab;
|
||
size_t pad_size;
|
||
|
||
htab = tilegx_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 = tilegx_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
|
||
|
||
if (!ret)
|
||
return ret;
|
||
|
||
/* Fill in the head and tail entries in the procedure linkage table. */
|
||
if (splt->size > 0)
|
||
{
|
||
memcpy (splt->contents,
|
||
ABI_64_P (output_bfd) ?
|
||
tilegx64_plt0_entry : tilegx32_plt0_entry,
|
||
PLT_HEADER_SIZE);
|
||
|
||
memcpy (splt->contents + splt->size
|
||
- PLT_ENTRY_SIZE + PLT_HEADER_SIZE,
|
||
ABI_64_P (output_bfd) ?
|
||
tilegx64_plt_tail_entry : tilegx32_plt_tail_entry,
|
||
PLT_TAIL_SIZE);
|
||
/* Add padding so that the plt section is a multiple of its
|
||
entry size. */
|
||
pad_size = PLT_ENTRY_SIZE - PLT_HEADER_SIZE - PLT_TAIL_SIZE;
|
||
memset (splt->contents + splt->size - pad_size, 0, pad_size);
|
||
|
||
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. */
|
||
TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) -1,
|
||
htab->elf.sgotplt->contents);
|
||
TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) 0,
|
||
htab->elf.sgotplt->contents
|
||
+ GOT_ENTRY_SIZE (htab));
|
||
|
||
elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize =
|
||
GOT_ENTRY_SIZE (htab);
|
||
}
|
||
}
|
||
|
||
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);
|
||
TILEGX_ELF_PUT_WORD (htab, output_bfd, val,
|
||
htab->elf.sgot->contents);
|
||
|
||
elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
|
||
GOT_ENTRY_SIZE (htab);
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
|
||
|
||
/* Return address for Ith PLT stub in section PLT, for relocation REL
|
||
or (bfd_vma) -1 if it should not be included. */
|
||
|
||
bfd_vma
|
||
tilegx_elf_plt_sym_val (bfd_vma i, const asection *plt,
|
||
const arelent *rel ATTRIBUTE_UNUSED)
|
||
{
|
||
return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE;
|
||
}
|
||
|
||
enum elf_reloc_type_class
|
||
tilegx_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
|
||
const asection *rel_sec ATTRIBUTE_UNUSED,
|
||
const Elf_Internal_Rela *rela)
|
||
{
|
||
switch ((int) TILEGX_ELF_R_TYPE (rela->r_info))
|
||
{
|
||
case R_TILEGX_RELATIVE:
|
||
return reloc_class_relative;
|
||
case R_TILEGX_JMP_SLOT:
|
||
return reloc_class_plt;
|
||
case R_TILEGX_COPY:
|
||
return reloc_class_copy;
|
||
default:
|
||
return reloc_class_normal;
|
||
}
|
||
}
|
||
|
||
int
|
||
tilegx_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;
|
||
}
|
||
|
||
|
||
bfd_boolean
|
||
_bfd_tilegx_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
|
||
{
|
||
bfd *obfd = info->output_bfd;
|
||
const char *targ1 = bfd_get_target (ibfd);
|
||
const char *targ2 = bfd_get_target (obfd);
|
||
|
||
if (strcmp (targ1, targ2) != 0)
|
||
{
|
||
_bfd_error_handler
|
||
/* xgettext:c-format */
|
||
(_("%B: Cannot link together %s and %s objects."),
|
||
ibfd, targ1, targ2);
|
||
bfd_set_error (bfd_error_bad_value);
|
||
return FALSE;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|