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5d0feb989c
The "HOWTO size encoding" patch put 1 as the HOWTO size arg for numerous howtos that are unused, describe dynamic relocs, are markers, or otherwise are special purpose reloc howtos that don't care about the size. The idea was to ensure no howto changed by inspecting object files. Revert those changes, making them zero size. * coff-alpha.c: Give special purpose reloc howtos a size of zero. * coff-mcore.c, * elf-hppa.h, * elf-m10300.c, * elf32-arm.c, * elf32-csky.c, * elf32-m32c.c, * elf32-m68k.c, * elf32-mep.c, * elf32-mips.c, * elf32-ppc.c, * elf32-rx.c, * elf32-s390.c, * elf32-spu.c, * elf32-tic6x.c, * elf32-tilepro.c, *elf32-vax.c, * elf32-xtensa.c, * elf64-alpha.c, * elf64-mips.c, * elf64-mmix.c, * elf64-ppc.c, * elf64-s390.c, * elfn32-mips.c, * elfxx-loongarch.c, * elfxx-riscv.c, * elfxx-sparc.c, * elfxx-tilegx.c, * som.c, * vms-alpha.c: Likewise.
892 lines
30 KiB
C
892 lines
30 KiB
C
/* LoongArch-specific support for ELF.
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Copyright (C) 2021-2022 Free Software Foundation, Inc.
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Contributed by Loongson Ltd.
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Based on RISC-V target.
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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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#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/loongarch.h"
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#include "elfxx-loongarch.h"
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#define ALL_ONES (~ (bfd_vma) 0)
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typedef struct loongarch_reloc_howto_type_struct
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{
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/* The first must be reloc_howto_type! */
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reloc_howto_type howto;
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bfd_reloc_code_real_type bfd_type;
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bool (*adjust_reloc_bits)(reloc_howto_type *, bfd_vma *);
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}loongarch_reloc_howto_type;
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#define LOONGARCH_DEFAULT_HOWTO(r_name) \
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{ HOWTO (R_LARCH_##r_name, 0, 4, 32, false, 0, complain_overflow_signed, \
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bfd_elf_generic_reloc, "R_LARCH_" #r_name, false, 0, ALL_ONES, \
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false), BFD_RELOC_LARCH_##r_name, NULL }
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#define LOONGARCH_HOWTO(type, right, size, bits, pcrel, left, ovf, func, \
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name, inplace, src_mask, dst_mask, pcrel_off, btype, afunc) \
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{ HOWTO(type, right, size, bits, pcrel, left, ovf, func, name, \
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inplace, src_mask, dst_mask, pcrel_off), btype, afunc }
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#define LOONGARCH_EMPTY_HOWTO(C) \
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{ EMPTY_HOWTO(C), BFD_RELOC_NONE, NULL }
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bool loongarch_gen_adjust_reloc_bits (reloc_howto_type *howto, bfd_vma *val);
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bool loongarch_adjust_reloc_bits_l16_xx5_h5 (reloc_howto_type *howto,
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bfd_vma *fix_val);
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bool loongarch_adjust_reloc_bits_l16_h10 (reloc_howto_type *howto,
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bfd_vma *val);
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/* This does not include any relocation information, but should be
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good enough for GDB or objdump to read the file. */
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static loongarch_reloc_howto_type loongarch_howto_table[] =
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{
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/* No relocation. */
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LOONGARCH_HOWTO (R_LARCH_NONE, /* type (0). */
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0, /* rightshift */
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0, /* size */
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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_LARCH_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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BFD_RELOC_NONE, /* bfd_reloc_code_real_type */
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NULL), /* adjust_reloc_bits */
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/* 32 bit relocation. */
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LOONGARCH_HOWTO (R_LARCH_32, /* type (1). */
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0, /* rightshift */
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4, /* size */
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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_LARCH_32", /* name */
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false, /* partial_inplace */
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0, /* src_mask */
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ALL_ONES, /* dst_mask */
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false, /* pcrel_offset */
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BFD_RELOC_32, /* bfd_reloc_code_real_type */
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NULL), /* adjust_reloc_bits */
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/* 64 bit relocation. */
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LOONGARCH_HOWTO (R_LARCH_64, /* type (2). */
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0, /* rightshift */
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8, /* size */
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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_LARCH_64", /* name */
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false, /* partial_inplace */
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0, /* src_mask */
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ALL_ONES, /* dst_mask */
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false, /* pcrel_offset */
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BFD_RELOC_64, /* bfd_reloc_code_real_type */
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NULL), /* adjust_reloc_bits */
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LOONGARCH_HOWTO (R_LARCH_RELATIVE, /* type (3). */
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0, /* rightshift */
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4, /* size */
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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_LARCH_RELATIVE", /* name */
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false, /* partial_inplace */
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0, /* src_mask */
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ALL_ONES, /* dst_mask */
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false, /* pcrel_offset */
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BFD_RELOC_NONE, /* undefined? */
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NULL), /* adjust_reloc_bits */
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LOONGARCH_HOWTO (R_LARCH_COPY, /* type (4). */
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0, /* rightshift */
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0, /* this one is variable size */
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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_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_LARCH_COPY", /* name */
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false, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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false, /* pcrel_offset */
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BFD_RELOC_NONE, /* undefined? */
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NULL), /* adjust_reloc_bits */
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LOONGARCH_HOWTO (R_LARCH_JUMP_SLOT, /* type (5). */
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0, /* rightshift */
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8, /* size */
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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_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_LARCH_JUMP_SLOT", /* name */
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false, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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false, /* pcrel_offset */
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BFD_RELOC_NONE, /* undefined? */
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NULL), /* adjust_reloc_bits */
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/* Dynamic TLS relocations. */
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LOONGARCH_HOWTO (R_LARCH_TLS_DTPMOD32, /* type (6). */
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0, /* rightshift */
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4, /* size */
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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_LARCH_TLS_DTPMOD32", /* name */
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false, /* partial_inplace */
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0, /* src_mask */
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ALL_ONES, /* dst_mask */
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false, /* pcrel_offset */
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BFD_RELOC_LARCH_TLS_DTPMOD32, /* bfd_reloc_code_real_type */
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NULL), /* adjust_reloc_bits */
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LOONGARCH_HOWTO (R_LARCH_TLS_DTPMOD64, /* type (7). */
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0, /* rightshift */
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8, /* size */
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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_LARCH_TLS_DTPMOD64", /* name */
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false, /* partial_inplace */
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0, /* src_mask */
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ALL_ONES, /* dst_mask */
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false, /* pcrel_offset */
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BFD_RELOC_LARCH_TLS_DTPMOD64, /* bfd_reloc_code_real_type */
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NULL), /* adjust_reloc_bits */
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LOONGARCH_HOWTO (R_LARCH_TLS_DTPREL32, /* type (8). */
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0, /* rightshift */
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4, /* size */
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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_LARCH_TLS_DTPREL32", /* name */
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true, /* partial_inplace */
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0, /* src_mask */
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ALL_ONES, /* dst_mask */
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false, /* pcrel_offset */
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BFD_RELOC_LARCH_TLS_DTPREL32, /* bfd_reloc_code_real_type */
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NULL), /* adjust_reloc_bits */
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LOONGARCH_HOWTO (R_LARCH_TLS_DTPREL64, /* type (9). */
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0, /* rightshift */
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8, /* size */
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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_LARCH_TLS_DTPREL64", /* name */
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true, /* partial_inplace */
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0, /* src_mask */
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ALL_ONES, /* dst_mask */
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false, /* pcrel_offset */
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BFD_RELOC_LARCH_TLS_DTPREL64, /* bfd_reloc_code_real_type */
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NULL), /* adjust_reloc_bits */
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LOONGARCH_HOWTO (R_LARCH_TLS_TPREL32, /* type (10). */
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0, /* rightshift */
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4, /* size */
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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_LARCH_TLS_TPREL32", /* name */
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false, /* partial_inplace */
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0, /* src_mask */
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ALL_ONES, /* dst_mask */
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false, /* pcrel_offset */
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BFD_RELOC_LARCH_TLS_TPREL32, /* bfd_reloc_code_real_type */
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NULL), /* adjust_reloc_bits */
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LOONGARCH_HOWTO (R_LARCH_TLS_TPREL64, /* type (11). */
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0, /* rightshift */
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8, /* size */
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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_LARCH_TLS_TPREL64", /* name */
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false, /* partial_inplace */
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0, /* src_mask */
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ALL_ONES, /* dst_mask */
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false, /* pcrel_offset */
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BFD_RELOC_LARCH_TLS_TPREL64, /* bfd_reloc_code_real_type */
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NULL), /* adjust_reloc_bits */
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LOONGARCH_HOWTO (R_LARCH_IRELATIVE, /* type (12). */
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0, /* rightshift */
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4, /* size */
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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_LARCH_IRELATIVE", /* name */
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false, /* partial_inplace */
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0, /* src_mask */
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ALL_ONES, /* dst_mask */
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false, /* pcrel_offset */
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BFD_RELOC_NONE, /* undefined? */
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NULL), /* adjust_reloc_bits */
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LOONGARCH_EMPTY_HOWTO(13),
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LOONGARCH_EMPTY_HOWTO(14),
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LOONGARCH_EMPTY_HOWTO(15),
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LOONGARCH_EMPTY_HOWTO(16),
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LOONGARCH_EMPTY_HOWTO(17),
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LOONGARCH_EMPTY_HOWTO(18),
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LOONGARCH_EMPTY_HOWTO(19),
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LOONGARCH_HOWTO (R_LARCH_MARK_LA, /* type (20). */
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0, /* rightshift. */
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0, /* size. */
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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_signed, /* complain_on_overflow. */
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bfd_elf_generic_reloc, /* special_function. */
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"R_LARCH_MARK_LA", /* 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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BFD_RELOC_LARCH_MARK_LA, /* bfd_reloc_code_real_type */
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NULL), /* adjust_reloc_bits */
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LOONGARCH_HOWTO (R_LARCH_MARK_PCREL, /* type (21). */
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0, /* rightshift. */
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0, /* size. */
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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_signed, /* complain_on_overflow. */
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bfd_elf_generic_reloc, /* special_function. */
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"R_LARCH_MARK_PCREL", /* 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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BFD_RELOC_LARCH_MARK_PCREL, /* bfd_reloc_code_real_type */
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NULL), /* adjust_reloc_bits */
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LOONGARCH_HOWTO (R_LARCH_SOP_PUSH_PCREL, /* type (22). */
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2, /* rightshift. */
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4, /* size. */
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32, /* bitsize. */
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true /* FIXME: somewhat use this. */, /* 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_LARCH_SOP_PUSH_PCREL", /* name. */
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false, /* partial_inplace. */
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0x03ffffff, /* src_mask. */
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0x03ffffff, /* dst_mask. */
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false, /* pcrel_offset */
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BFD_RELOC_LARCH_SOP_PUSH_PCREL, /* bfd_reloc_code_real_type */
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NULL), /* adjust_reloc_bits */
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/* type 23-37. */
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LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_ABSOLUTE),
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LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_DUP),
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LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_GPREL),
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LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_TLS_TPREL),
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LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_TLS_GOT),
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LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_TLS_GD),
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LOONGARCH_DEFAULT_HOWTO (SOP_PUSH_PLT_PCREL),
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LOONGARCH_DEFAULT_HOWTO (SOP_ASSERT),
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LOONGARCH_DEFAULT_HOWTO (SOP_NOT),
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LOONGARCH_DEFAULT_HOWTO (SOP_SUB),
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LOONGARCH_DEFAULT_HOWTO (SOP_SL),
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LOONGARCH_DEFAULT_HOWTO (SOP_SR),
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LOONGARCH_DEFAULT_HOWTO (SOP_ADD),
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LOONGARCH_DEFAULT_HOWTO (SOP_AND),
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LOONGARCH_DEFAULT_HOWTO (SOP_IF_ELSE),
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LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_10_5, /* type (38). */
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0, /* rightshift. */
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4, /* size. */
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5, /* bitsize. */
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false, /* pc_relative. */
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10, /* 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_LARCH_SOP_POP_32_S_10_5", /* name. */
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false, /* partial_inplace. */
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0, /* src_mask */
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0x7c00, /* dst_mask */
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false, /* pcrel_offset */
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BFD_RELOC_LARCH_SOP_POP_32_S_10_5, /* bfd_reloc_code_real_type */
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loongarch_gen_adjust_reloc_bits), /* adjust_reloc_bits */
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LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_U_10_12, /* type (39). */
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0, /* rightshift. */
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4, /* size. */
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12, /* bitsize. */
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false, /* pc_relative. */
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10, /* 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_LARCH_SOP_POP_32_U_10_12", /* name. */
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false, /* partial_inplace. */
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0, /* src_mask */
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0x3ffc00, /* dst_mask */
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false, /* pcrel_offset */
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BFD_RELOC_LARCH_SOP_POP_32_U_10_12, /* bfd_reloc_code_real_type */
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loongarch_gen_adjust_reloc_bits), /* adjust_reloc_bits */
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LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_10_12, /* type (40). */
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0, /* rightshift. */
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4, /* size. */
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12, /* bitsize. */
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false, /* pc_relative. */
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10, /* 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_LARCH_SOP_POP_32_S_10_12", /* name. */
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false, /* partial_inplace. */
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0, /* src_mask */
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0x3ffc00, /* dst_mask */
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false, /* pcrel_offset */
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BFD_RELOC_LARCH_SOP_POP_32_S_10_12, /* bfd_reloc_code_real_type */
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loongarch_gen_adjust_reloc_bits), /* adjust_reloc_bits */
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LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_10_16, /* type (41). */
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0, /* rightshift. */
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4, /* size. */
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16, /* bitsize. */
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false, /* pc_relative. */
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10, /* 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_LARCH_SOP_POP_32_S_10_16", /* name. */
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false, /* partial_inplace. */
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0, /* src_mask */
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0x3fffc00, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_LARCH_SOP_POP_32_S_10_16, /* bfd_reloc_code_real_type */
|
|
loongarch_gen_adjust_reloc_bits), /* adjust_reloc_bits */
|
|
|
|
LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_10_16_S2, /* type (42). */
|
|
2, /* rightshift. */
|
|
4, /* size. */
|
|
16, /* bitsize. */
|
|
false, /* pc_relative. */
|
|
10, /* bitpos. */
|
|
complain_overflow_signed, /* complain_on_overflow. */
|
|
bfd_elf_generic_reloc, /* special_function. */
|
|
"R_LARCH_SOP_POP_32_S_10_16_S2", /* name. */
|
|
false, /* partial_inplace. */
|
|
0, /* src_mask */
|
|
0x3fffc00, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_LARCH_SOP_POP_32_S_10_16_S2, /* bfd_reloc_code_real_type */
|
|
loongarch_gen_adjust_reloc_bits), /* adjust_reloc_bits */
|
|
|
|
LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_5_20, /* type (43). */
|
|
0, /* rightshift. */
|
|
4, /* size. */
|
|
20, /* bitsize. */
|
|
false, /* pc_relative. */
|
|
5, /* bitpos. */
|
|
complain_overflow_signed, /* complain_on_overflow. */
|
|
bfd_elf_generic_reloc, /* special_function. */
|
|
"R_LARCH_SOP_POP_32_S_5_20", /* name. */
|
|
false, /* partial_inplace. */
|
|
0, /* src_mask */
|
|
0x1ffffe0, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_LARCH_SOP_POP_32_S_5_20, /* bfd_reloc_code_real_type */
|
|
loongarch_gen_adjust_reloc_bits), /* adjust_reloc_bits */
|
|
|
|
LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_0_5_10_16_S2,
|
|
/* type (44). */
|
|
2, /* rightshift. */
|
|
4, /* size. */
|
|
21, /* bitsize. */
|
|
false, /* pc_relative. */
|
|
0, /* bitpos. */
|
|
complain_overflow_signed, /* complain_on_overflow. */
|
|
bfd_elf_generic_reloc, /* special_function. */
|
|
"R_LARCH_SOP_POP_32_S_0_5_10_16_S2", /* name. */
|
|
false, /* partial_inplace. */
|
|
0xfc0003e0, /* src_mask */
|
|
0xfc0003e0, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_LARCH_SOP_POP_32_S_0_5_10_16_S2,
|
|
/* bfd_reloc_code_real_type */
|
|
loongarch_adjust_reloc_bits_l16_xx5_h5), /* adjust_reloc_bits */
|
|
|
|
LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_S_0_10_10_16_S2, /* type (45). */
|
|
2, /* rightshift. */
|
|
4, /* size. */
|
|
26, /* bitsize. */
|
|
false, /* pc_relative. */
|
|
0, /* bitpos. */
|
|
complain_overflow_signed, /* complain_on_overflow. */
|
|
bfd_elf_generic_reloc, /* special_function. */
|
|
"R_LARCH_SOP_POP_32_S_0_10_10_16_S2", /* name. */
|
|
false, /* partial_inplace. */
|
|
0xfc000000, /* src_mask */
|
|
0xfc000000, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_LARCH_SOP_POP_32_S_0_10_10_16_S2,
|
|
/* bfd_reloc_code_real_type */
|
|
loongarch_adjust_reloc_bits_l16_h10), /* adjust_reloc_bits */
|
|
|
|
LOONGARCH_HOWTO (R_LARCH_SOP_POP_32_U, /* type (46). */
|
|
0, /* rightshift. */
|
|
4, /* size. */
|
|
32, /* bitsize. */
|
|
false, /* pc_relative. */
|
|
0, /* bitpos. */
|
|
complain_overflow_unsigned, /* complain_on_overflow. */
|
|
bfd_elf_generic_reloc, /* special_function. */
|
|
"R_LARCH_SOP_POP_32_S_U", /* name. */
|
|
false, /* partial_inplace. */
|
|
0xffffffff00000000, /* src_mask */
|
|
0x00000000ffffffff, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_LARCH_SOP_POP_32_U, /* bfd_reloc_code_real_type */
|
|
loongarch_gen_adjust_reloc_bits), /* adjust_reloc_bits */
|
|
|
|
LOONGARCH_HOWTO (R_LARCH_ADD8, /* type (47). */
|
|
0, /* rightshift. */
|
|
4, /* size. */
|
|
8, /* bitsize. */
|
|
false, /* pc_relative. */
|
|
0, /* bitpos. */
|
|
complain_overflow_signed, /* complain_on_overflow. */
|
|
bfd_elf_generic_reloc, /* special_function. */
|
|
"R_LARCH_ADD8", /* name. */
|
|
false, /* partial_inplace. */
|
|
0, /* src_mask */
|
|
ALL_ONES, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_LARCH_ADD8, /* bfd_reloc_code_real_type */
|
|
NULL), /* adjust_reloc_bits */
|
|
|
|
LOONGARCH_HOWTO (R_LARCH_ADD16, /* type (48). */
|
|
0, /* rightshift. */
|
|
4, /* size. */
|
|
16, /* bitsize. */
|
|
false, /* pc_relative. */
|
|
0, /* bitpos. */
|
|
complain_overflow_signed, /* complain_on_overflow. */
|
|
bfd_elf_generic_reloc, /* special_function. */
|
|
"R_LARCH_ADD16", /* name. */
|
|
false, /* partial_inplace. */
|
|
0, /* src_mask */
|
|
ALL_ONES, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_LARCH_ADD16, /* bfd_reloc_code_real_type */
|
|
NULL), /* adjust_reloc_bits */
|
|
|
|
LOONGARCH_HOWTO (R_LARCH_ADD24, /* type (49). */
|
|
0, /* rightshift. */
|
|
4, /* size. */
|
|
24, /* bitsize. */
|
|
false, /* pc_relative. */
|
|
0, /* bitpos. */
|
|
complain_overflow_signed, /* complain_on_overflow. */
|
|
bfd_elf_generic_reloc, /* special_function. */
|
|
"R_LARCH_ADD24", /* name. */
|
|
false, /* partial_inplace. */
|
|
0, /* src_mask */
|
|
ALL_ONES, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_LARCH_ADD24, /* bfd_reloc_code_real_type */
|
|
NULL), /* adjust_reloc_bits */
|
|
|
|
LOONGARCH_HOWTO (R_LARCH_ADD32, /* type (50). */
|
|
0, /* rightshift. */
|
|
4, /* size. */
|
|
32, /* bitsize. */
|
|
false, /* pc_relative. */
|
|
0, /* bitpos. */
|
|
complain_overflow_signed, /* complain_on_overflow. */
|
|
bfd_elf_generic_reloc, /* special_function. */
|
|
"R_LARCH_ADD32", /* name. */
|
|
false, /* partial_inplace. */
|
|
0, /* src_mask */
|
|
ALL_ONES, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_LARCH_ADD32, /* bfd_reloc_code_real_type */
|
|
NULL), /* adjust_reloc_bits */
|
|
|
|
LOONGARCH_HOWTO (R_LARCH_ADD64, /* type (51). */
|
|
0, /* rightshift. */
|
|
8, /* size. */
|
|
64, /* bitsize. */
|
|
false, /* pc_relative. */
|
|
0, /* bitpos. */
|
|
complain_overflow_signed, /* complain_on_overflow. */
|
|
bfd_elf_generic_reloc, /* special_function. */
|
|
"R_LARCH_ADD64", /* name. */
|
|
false, /* partial_inplace. */
|
|
0, /* src_mask */
|
|
ALL_ONES, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_LARCH_ADD64, /* bfd_reloc_code_real_type */
|
|
NULL), /* adjust_reloc_bits */
|
|
|
|
LOONGARCH_HOWTO (R_LARCH_SUB8, /* type (52). */
|
|
0, /* rightshift. */
|
|
4, /* size. */
|
|
8, /* bitsize. */
|
|
false, /* pc_relative. */
|
|
0, /* bitpos. */
|
|
complain_overflow_signed, /* complain_on_overflow. */
|
|
bfd_elf_generic_reloc, /* special_function. */
|
|
"R_LARCH_SUB8", /* name. */
|
|
false, /* partial_inplace. */
|
|
0, /* src_mask */
|
|
ALL_ONES, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_LARCH_SUB8, /* bfd_reloc_code_real_type */
|
|
NULL), /* adjust_reloc_bits */
|
|
|
|
LOONGARCH_HOWTO (R_LARCH_SUB16, /* type (53). */
|
|
0, /* rightshift. */
|
|
4, /* size. */
|
|
16, /* bitsize. */
|
|
false, /* pc_relative. */
|
|
0, /* bitpos. */
|
|
complain_overflow_signed, /* complain_on_overflow. */
|
|
bfd_elf_generic_reloc, /* special_function. */
|
|
"R_LARCH_SUB16", /* name. */
|
|
false, /* partial_inplace. */
|
|
0, /* src_mask */
|
|
ALL_ONES, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_LARCH_SUB16, /* bfd_reloc_code_real_type */
|
|
NULL), /* adjust_reloc_bits */
|
|
|
|
LOONGARCH_HOWTO (R_LARCH_SUB24, /* type (54). */
|
|
0, /* rightshift. */
|
|
4, /* size. */
|
|
24, /* bitsize. */
|
|
false, /* pc_relative. */
|
|
0, /* bitpos. */
|
|
complain_overflow_signed, /* complain_on_overflow. */
|
|
bfd_elf_generic_reloc, /* special_function. */
|
|
"R_LARCH_SUB24", /* name. */
|
|
false, /* partial_inplace. */
|
|
0, /* src_mask */
|
|
ALL_ONES, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_LARCH_SUB24, /* bfd_reloc_code_real_type */
|
|
NULL), /* adjust_reloc_bits */
|
|
|
|
LOONGARCH_HOWTO (R_LARCH_SUB32, /* type (55). */
|
|
0, /* rightshift. */
|
|
4, /* size. */
|
|
32, /* bitsize. */
|
|
false, /* pc_relative. */
|
|
0, /* bitpos. */
|
|
complain_overflow_signed, /* complain_on_overflow. */
|
|
bfd_elf_generic_reloc, /* special_function. */
|
|
"R_LARCH_SUB32", /* name. */
|
|
false, /* partial_inplace. */
|
|
0, /* src_mask */
|
|
ALL_ONES, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_LARCH_SUB32, /* bfd_reloc_code_real_type */
|
|
NULL), /* adjust_reloc_bits */
|
|
|
|
LOONGARCH_HOWTO (R_LARCH_SUB64, /* type (56). */
|
|
0, /* rightshift. */
|
|
8, /* size. */
|
|
64, /* bitsize. */
|
|
false, /* pc_relative. */
|
|
0, /* bitpos. */
|
|
complain_overflow_signed, /* complain_on_overflow. */
|
|
bfd_elf_generic_reloc, /* special_function. */
|
|
"R_LARCH_SUB64", /* name. */
|
|
false, /* partial_inplace. */
|
|
0, /* src_mask */
|
|
ALL_ONES, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_LARCH_SUB64, /* bfd_reloc_code_real_type */
|
|
NULL), /* adjust_reloc_bits */
|
|
|
|
LOONGARCH_HOWTO (R_LARCH_GNU_VTINHERIT, /* type (57). */
|
|
0, /* rightshift. */
|
|
0, /* size. */
|
|
0, /* bitsize. */
|
|
false, /* pc_relative. */
|
|
0, /* bitpos. */
|
|
complain_overflow_signed, /* complain_on_overflow. */
|
|
bfd_elf_generic_reloc, /* special_function. */
|
|
"R_LARCH_GNU_VTINHERIT", /* name. */
|
|
false, /* partial_inplace. */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_NONE, /* bfd_reloc_code_real_type */
|
|
NULL), /* adjust_reloc_bits */
|
|
|
|
LOONGARCH_HOWTO (R_LARCH_GNU_VTENTRY, /* type (58). */
|
|
0, /* rightshift. */
|
|
0, /* size. */
|
|
0, /* bitsize. */
|
|
false, /* pc_relative. */
|
|
0, /* bitpos. */
|
|
complain_overflow_signed, /* complain_on_overflow. */
|
|
NULL, /* special_function. */
|
|
"R_LARCH_GNU_VTENTRY", /* name. */
|
|
false, /* partial_inplace. */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
false, /* pcrel_offset */
|
|
BFD_RELOC_NONE, /* bfd_reloc_code_real_type */
|
|
NULL), /* adjust_reloc_bits */
|
|
};
|
|
|
|
reloc_howto_type *
|
|
loongarch_elf_rtype_to_howto (bfd *abfd, unsigned int r_type)
|
|
{
|
|
if(r_type < R_LARCH_count)
|
|
{
|
|
/* For search table fast. */
|
|
BFD_ASSERT (ARRAY_SIZE (loongarch_howto_table) == R_LARCH_count);
|
|
|
|
if (loongarch_howto_table[r_type].howto.type == r_type)
|
|
return (reloc_howto_type *)&loongarch_howto_table[r_type];
|
|
|
|
BFD_ASSERT (loongarch_howto_table[r_type].howto.type == r_type);
|
|
|
|
for (size_t i = 0; i < ARRAY_SIZE (loongarch_howto_table); i++)
|
|
if (loongarch_howto_table[i].howto.type == r_type)
|
|
return (reloc_howto_type *)&loongarch_howto_table[i];
|
|
}
|
|
|
|
(*_bfd_error_handler) (_("%pB: unsupported relocation type %#x"),
|
|
abfd, r_type);
|
|
bfd_set_error (bfd_error_bad_value);
|
|
return NULL;
|
|
}
|
|
|
|
reloc_howto_type *
|
|
loongarch_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
|
|
{
|
|
BFD_ASSERT (ARRAY_SIZE (loongarch_howto_table) == R_LARCH_count);
|
|
|
|
for (size_t i = 0; i < ARRAY_SIZE (loongarch_howto_table); i++)
|
|
if (loongarch_howto_table[i].howto.name
|
|
&& strcasecmp (loongarch_howto_table[i].howto.name, r_name) == 0)
|
|
return (reloc_howto_type *)&loongarch_howto_table[i];
|
|
|
|
(*_bfd_error_handler) (_("%pB: unsupported relocation type %s"),
|
|
abfd, r_name);
|
|
bfd_set_error (bfd_error_bad_value);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* Cost so much. */
|
|
reloc_howto_type *
|
|
loongarch_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
|
bfd_reloc_code_real_type code)
|
|
{
|
|
BFD_ASSERT (ARRAY_SIZE (loongarch_howto_table) == R_LARCH_count);
|
|
|
|
for (size_t i = 0; i < ARRAY_SIZE (loongarch_howto_table); i++)
|
|
if (loongarch_howto_table[i].bfd_type == code)
|
|
return (reloc_howto_type *)&loongarch_howto_table[i];
|
|
|
|
(*_bfd_error_handler) (_("%pB: unsupported bfd relocation type %#x"),
|
|
abfd, code);
|
|
bfd_set_error (bfd_error_bad_value);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
#define LARCH_RELOC_BFD_VMA_BIT_MASK(bitsize) \
|
|
(~((((bfd_vma)0x1) << (bitsize)) - 1))
|
|
|
|
/* Adjust val to perform insn
|
|
* BFD_RELOC_LARCH_SOP_POP_32_S_10_5
|
|
* BFD_RELOC_LARCH_SOP_POP_32_S_10_12
|
|
* BFD_RELOC_LARCH_SOP_POP_32_U_10_12
|
|
* BFD_RELOC_LARCH_SOP_POP_32_S_10_16
|
|
* BFD_RELOC_LARCH_SOP_POP_32_S_10_16_S2
|
|
* BFD_RELOC_LARCH_SOP_POP_32_S_5_20
|
|
* BFD_RELOC_LARCH_SOP_POP_32_U.
|
|
*/
|
|
|
|
bool loongarch_gen_adjust_reloc_bits (reloc_howto_type *howto, bfd_vma *fix_val)
|
|
{
|
|
bfd_vma val = *fix_val;
|
|
/* Check val low bits if rightshift != 0, before rightshift */
|
|
if (howto->rightshift
|
|
&& (((0x1UL << howto->rightshift) - 1) & val))
|
|
return false;
|
|
|
|
int bitsize = howto->bitsize + howto->rightshift;
|
|
|
|
/* Return false if overflow. */
|
|
if (howto->complain_on_overflow == complain_overflow_signed)
|
|
{
|
|
bfd_vma sig_bit = (val >> (bitsize - 1)) & 0x1;
|
|
/* If val < 0. */
|
|
if (sig_bit)
|
|
{
|
|
if ((LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1) & val)
|
|
!= LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1))
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
if (LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1) & val)
|
|
return false;
|
|
}
|
|
}
|
|
else if (howto->complain_on_overflow == complain_overflow_unsigned)
|
|
{
|
|
if (LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize) & val)
|
|
return false;
|
|
}
|
|
else
|
|
return false;
|
|
|
|
/* Perform insn bits field. */
|
|
val = (val & ((0x1U << bitsize) - 1)) >> howto->rightshift;
|
|
val <<= howto->bitpos;
|
|
|
|
*fix_val = val;
|
|
|
|
return true;
|
|
}
|
|
|
|
/* Reloc type R_LARCH_SOP_POP_32_S_0_5_10_16_S2. */
|
|
bool loongarch_adjust_reloc_bits_l16_xx5_h5 (reloc_howto_type *howto,
|
|
bfd_vma *fix_val)
|
|
{
|
|
bfd_vma val = *fix_val;
|
|
/* Check val low bits if rightshift != 0, before rightshift */
|
|
if (howto->rightshift
|
|
&& (((0x1UL << howto->rightshift) - 1) & val))
|
|
return false;
|
|
|
|
/* Return false if overflow. */
|
|
if (howto->complain_on_overflow != complain_overflow_signed)
|
|
return false;
|
|
|
|
int bitsize = howto->bitsize + howto->rightshift;
|
|
bfd_vma sig_bit = (val >> (bitsize - 1)) & 0x1;
|
|
/* If val < 0. */
|
|
if (sig_bit)
|
|
{
|
|
if ((LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1) & val)
|
|
!= LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1))
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
if (LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1) & val)
|
|
return false;
|
|
}
|
|
|
|
/* Perform insn bits field. */
|
|
val = (val & ((0x1U << bitsize) - 1)) >> howto->rightshift;
|
|
|
|
/* Perform insn bits field. 20:16>>16, 15:0<<10 */
|
|
val = ((val & 0xffff) << 10) | ((val >> 16) & 0x1f);
|
|
|
|
*fix_val = val;
|
|
|
|
return true;
|
|
}
|
|
|
|
/* Reloc type R_LARCH_SOP_POP_32_S_0_10_10_16_S2. */
|
|
bool loongarch_adjust_reloc_bits_l16_h10 (reloc_howto_type *howto,
|
|
bfd_vma *fix_val)
|
|
{
|
|
bfd_vma val = *fix_val;
|
|
/* Check val low bits if rightshift != 0, before rightshift */
|
|
if (howto->rightshift
|
|
&& (((0x1UL << howto->rightshift) - 1) & val))
|
|
return false;
|
|
|
|
/* Return false if overflow. */
|
|
if (howto->complain_on_overflow != complain_overflow_signed)
|
|
return false;
|
|
|
|
int bitsize = howto->bitsize + howto->rightshift;
|
|
bfd_vma sig_bit = (val >> (bitsize - 1)) & 0x1;
|
|
/* If val < 0. */
|
|
if (sig_bit)
|
|
{
|
|
if ((LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1) & val)
|
|
!= LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1))
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
if (LARCH_RELOC_BFD_VMA_BIT_MASK (bitsize - 1) & val)
|
|
return false;
|
|
}
|
|
|
|
/* Perform insn bits field. */
|
|
val = (val & ((0x1U << bitsize) - 1)) >> howto->rightshift;
|
|
|
|
/* Perform insn bits field. 25:16>>16, 15:0<<10 */
|
|
val = ((val & 0xffff) << 10) | ((val >> 16) & 0x3ff);
|
|
|
|
*fix_val = val;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool loongarch_adjust_reloc_bitsfield (reloc_howto_type *howto,
|
|
bfd_vma *fix_val)
|
|
{
|
|
BFD_ASSERT (((loongarch_reloc_howto_type *)howto)->adjust_reloc_bits);
|
|
return ((loongarch_reloc_howto_type *)
|
|
howto)->adjust_reloc_bits(howto, fix_val);
|
|
}
|