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a6cbf936e3
The symbol address in .eh_frame may be adjusted in _bfd_elf_discard_section_eh_frame, and the content of .eh_frame will be adjusted in _bfd_elf_write_section_eh_frame. Therefore, we cannot insert a relocation whose addend symbol is in .eh_frame. Othrewise, the value may be adjusted twice. bfd/ChangeLog 2017-06-26 Kuan-Lin Chen <rufus@andestech.com> * elfnn-riscv.c (perform_relocation): Support the new R_RISCV_32_PCREL relocation. (riscv_elf_relocate_section): Likewise. * elfxx-riscv.c (howto_table): Likewise. (riscv_reloc_map): Likewise. * bfd-in2.h (BFD_RELOC_RISCV_32_PCREL): New relocation. * libbfd.h: Regenerate. gas/ChangeLog 2017-06-26 Kuan-Lin Chen <rufus@andestech.com> * config/tc-riscv.c (md_apply_fix) [BFD_RELOC_32]: Convert to a R_RISCV_32_PCREL relocation. include/ChangeLog 2017-06-26 Kuan-Lin Chen <rufus@andestech.com> * elf/riscv.h (R_RISCV_32_PCREL): New.
117 lines
4.0 KiB
C
117 lines
4.0 KiB
C
/* RISC-V ELF support for BFD.
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Copyright (C) 2011-2017 Free Software Foundation, Inc.
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Contributed by Andrew Waterman (andrew@sifive.com).
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Based on MIPS ELF support for BFD, by Ian Lance Taylor.
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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; see the file COPYING3. If not,
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see <http://www.gnu.org/licenses/>. */
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/* This file holds definitions specific to the RISCV ELF ABI. Note
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that most of this is not actually implemented by BFD. */
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#ifndef _ELF_RISCV_H
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#define _ELF_RISCV_H
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#include "elf/reloc-macros.h"
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#include "libiberty.h"
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/* Relocation types. */
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START_RELOC_NUMBERS (elf_riscv_reloc_type)
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/* Relocation types used by the dynamic linker. */
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RELOC_NUMBER (R_RISCV_NONE, 0)
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RELOC_NUMBER (R_RISCV_32, 1)
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RELOC_NUMBER (R_RISCV_64, 2)
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RELOC_NUMBER (R_RISCV_RELATIVE, 3)
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RELOC_NUMBER (R_RISCV_COPY, 4)
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RELOC_NUMBER (R_RISCV_JUMP_SLOT, 5)
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RELOC_NUMBER (R_RISCV_TLS_DTPMOD32, 6)
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RELOC_NUMBER (R_RISCV_TLS_DTPMOD64, 7)
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RELOC_NUMBER (R_RISCV_TLS_DTPREL32, 8)
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RELOC_NUMBER (R_RISCV_TLS_DTPREL64, 9)
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RELOC_NUMBER (R_RISCV_TLS_TPREL32, 10)
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RELOC_NUMBER (R_RISCV_TLS_TPREL64, 11)
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/* Relocation types not used by the dynamic linker. */
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RELOC_NUMBER (R_RISCV_BRANCH, 16)
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RELOC_NUMBER (R_RISCV_JAL, 17)
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RELOC_NUMBER (R_RISCV_CALL, 18)
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RELOC_NUMBER (R_RISCV_CALL_PLT, 19)
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RELOC_NUMBER (R_RISCV_GOT_HI20, 20)
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RELOC_NUMBER (R_RISCV_TLS_GOT_HI20, 21)
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RELOC_NUMBER (R_RISCV_TLS_GD_HI20, 22)
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RELOC_NUMBER (R_RISCV_PCREL_HI20, 23)
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RELOC_NUMBER (R_RISCV_PCREL_LO12_I, 24)
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RELOC_NUMBER (R_RISCV_PCREL_LO12_S, 25)
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RELOC_NUMBER (R_RISCV_HI20, 26)
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RELOC_NUMBER (R_RISCV_LO12_I, 27)
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RELOC_NUMBER (R_RISCV_LO12_S, 28)
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RELOC_NUMBER (R_RISCV_TPREL_HI20, 29)
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RELOC_NUMBER (R_RISCV_TPREL_LO12_I, 30)
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RELOC_NUMBER (R_RISCV_TPREL_LO12_S, 31)
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RELOC_NUMBER (R_RISCV_TPREL_ADD, 32)
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RELOC_NUMBER (R_RISCV_ADD8, 33)
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RELOC_NUMBER (R_RISCV_ADD16, 34)
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RELOC_NUMBER (R_RISCV_ADD32, 35)
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RELOC_NUMBER (R_RISCV_ADD64, 36)
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RELOC_NUMBER (R_RISCV_SUB8, 37)
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RELOC_NUMBER (R_RISCV_SUB16, 38)
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RELOC_NUMBER (R_RISCV_SUB32, 39)
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RELOC_NUMBER (R_RISCV_SUB64, 40)
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RELOC_NUMBER (R_RISCV_GNU_VTINHERIT, 41)
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RELOC_NUMBER (R_RISCV_GNU_VTENTRY, 42)
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RELOC_NUMBER (R_RISCV_ALIGN, 43)
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RELOC_NUMBER (R_RISCV_RVC_BRANCH, 44)
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RELOC_NUMBER (R_RISCV_RVC_JUMP, 45)
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RELOC_NUMBER (R_RISCV_RVC_LUI, 46)
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RELOC_NUMBER (R_RISCV_GPREL_I, 47)
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RELOC_NUMBER (R_RISCV_GPREL_S, 48)
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RELOC_NUMBER (R_RISCV_TPREL_I, 49)
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RELOC_NUMBER (R_RISCV_TPREL_S, 50)
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RELOC_NUMBER (R_RISCV_RELAX, 51)
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RELOC_NUMBER (R_RISCV_SUB6, 52)
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RELOC_NUMBER (R_RISCV_SET6, 53)
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RELOC_NUMBER (R_RISCV_SET8, 54)
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RELOC_NUMBER (R_RISCV_SET16, 55)
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RELOC_NUMBER (R_RISCV_SET32, 56)
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RELOC_NUMBER (R_RISCV_32_PCREL, 57)
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END_RELOC_NUMBERS (R_RISCV_max)
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/* Processor specific flags for the ELF header e_flags field. */
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/* File may contain compressed instructions. */
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#define EF_RISCV_RVC 0x0001
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/* Which floating-point ABI a file uses. */
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#define EF_RISCV_FLOAT_ABI 0x0006
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/* File uses the soft-float ABI. */
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#define EF_RISCV_FLOAT_ABI_SOFT 0x0000
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/* File uses the single-float ABI. */
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#define EF_RISCV_FLOAT_ABI_SINGLE 0x0002
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/* File uses the double-float ABI. */
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#define EF_RISCV_FLOAT_ABI_DOUBLE 0x0004
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/* File uses the quad-float ABI. */
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#define EF_RISCV_FLOAT_ABI_QUAD 0x0006
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/* The name of the global pointer symbol. */
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#define RISCV_GP_SYMBOL "__global_pointer$"
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#endif /* _ELF_RISCV_H */
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