| /* FRV-specific support for 32-bit ELF. |
| Copyright 2002 Free Software Foundation, Inc. |
| |
| This file is part of BFD, the Binary File Descriptor library. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| |
| #include "bfd.h" |
| #include "sysdep.h" |
| #include "libbfd.h" |
| #include "elf-bfd.h" |
| #include "elf/frv.h" |
| |
| /* Forward declarations. */ |
| static bfd_reloc_status_type elf32_frv_relocate_lo16 |
| PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma)); |
| static bfd_reloc_status_type elf32_frv_relocate_hi16 |
| PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma)); |
| static bfd_reloc_status_type elf32_frv_relocate_label24 |
| PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma)); |
| static bfd_reloc_status_type elf32_frv_relocate_gprel12 |
| PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *, |
| bfd_byte *, bfd_vma)); |
| static bfd_reloc_status_type elf32_frv_relocate_gprelu12 |
| PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *, |
| bfd_byte *, bfd_vma)); |
| static bfd_reloc_status_type elf32_frv_relocate_gprello |
| PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *, |
| bfd_byte *, bfd_vma)); |
| static bfd_reloc_status_type elf32_frv_relocate_gprelhi |
| PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *, |
| bfd_byte *, bfd_vma)); |
| static reloc_howto_type *frv_reloc_type_lookup |
| PARAMS ((bfd *, bfd_reloc_code_real_type)); |
| static void frv_info_to_howto_rela |
| PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); |
| static bfd_boolean elf32_frv_relocate_section |
| PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
| Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); |
| static bfd_boolean elf32_frv_add_symbol_hook |
| PARAMS (( bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, |
| const char **, flagword *, asection **, bfd_vma *)); |
| static bfd_reloc_status_type frv_final_link_relocate |
| PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *, |
| Elf_Internal_Rela *, bfd_vma)); |
| static bfd_boolean elf32_frv_gc_sweep_hook |
| PARAMS ((bfd *, struct bfd_link_info *, asection *, const |
| Elf_Internal_Rela *)); |
| static asection * elf32_frv_gc_mark_hook |
| PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *, |
| struct elf_link_hash_entry *, Elf_Internal_Sym *)); |
| static bfd_boolean elf32_frv_check_relocs |
| PARAMS ((bfd *, struct bfd_link_info *, asection *, |
| const Elf_Internal_Rela *)); |
| static int elf32_frv_machine |
| PARAMS ((bfd *)); |
| static bfd_boolean elf32_frv_object_p |
| PARAMS ((bfd *)); |
| static bfd_boolean frv_elf_set_private_flags |
| PARAMS ((bfd *, flagword)); |
| static bfd_boolean frv_elf_copy_private_bfd_data |
| PARAMS ((bfd *, bfd *)); |
| static bfd_boolean frv_elf_merge_private_bfd_data |
| PARAMS ((bfd *, bfd *)); |
| static bfd_boolean frv_elf_print_private_bfd_data |
| PARAMS ((bfd *, PTR)); |
| |
| static reloc_howto_type elf32_frv_howto_table [] = |
| { |
| /* This reloc does nothing. */ |
| HOWTO (R_FRV_NONE, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 32, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_bitfield, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_FRV_NONE", /* name */ |
| FALSE, /* partial_inplace */ |
| 0, /* src_mask */ |
| 0, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| |
| /* A 32 bit absolute relocation. */ |
| HOWTO (R_FRV_32, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 32, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_bitfield, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_FRV_32", /* name */ |
| FALSE, /* partial_inplace */ |
| 0xffffffff, /* src_mask */ |
| 0xffffffff, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| |
| /* A 16 bit pc-relative relocation. */ |
| HOWTO (R_FRV_LABEL16, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| TRUE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_bitfield, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_FRV_LABEL16", /* name */ |
| FALSE, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| TRUE), /* pcrel_offset */ |
| |
| /* A 24-bit pc-relative relocation. */ |
| HOWTO (R_FRV_LABEL24, /* type */ |
| 2, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 26, /* bitsize */ |
| TRUE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_bitfield, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_FRV_LABEL24", /* name */ |
| FALSE, /* partial_inplace */ |
| 0x7e03ffff, /* src_mask */ |
| 0x7e03ffff, /* dst_mask */ |
| TRUE), /* pcrel_offset */ |
| |
| HOWTO (R_FRV_LO16, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_FRV_LO16", /* name */ |
| FALSE, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| |
| HOWTO (R_FRV_HI16, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_FRV_HI16", /* name */ |
| FALSE, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| |
| HOWTO (R_FRV_GPREL12, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 12, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_FRV_GPREL12", /* name */ |
| FALSE, /* partial_inplace */ |
| 0xfff, /* src_mask */ |
| 0xfff, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| |
| HOWTO (R_FRV_GPRELU12, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 12, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_FRV_GPRELU12", /* name */ |
| FALSE, /* partial_inplace */ |
| 0xfff, /* src_mask */ |
| 0x3f03f, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| |
| HOWTO (R_FRV_GPREL32, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 32, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_FRV_GPREL32", /* name */ |
| FALSE, /* partial_inplace */ |
| 0xffffffff, /* src_mask */ |
| 0xffffffff, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| |
| HOWTO (R_FRV_GPRELHI, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_FRV_GPRELHI", /* name */ |
| FALSE, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| |
| HOWTO (R_FRV_GPRELLO, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_FRV_GPRELLO", /* name */ |
| FALSE, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| }; |
| |
| /* GNU extension to record C++ vtable hierarchy. */ |
| static reloc_howto_type elf32_frv_vtinherit_howto = |
| HOWTO (R_FRV_GNU_VTINHERIT, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 0, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| NULL, /* special_function */ |
| "R_FRV_GNU_VTINHERIT", /* name */ |
| FALSE, /* partial_inplace */ |
| 0, /* src_mask */ |
| 0, /* dst_mask */ |
| FALSE); /* pcrel_offset */ |
| |
| /* GNU extension to record C++ vtable member usage. */ |
| static reloc_howto_type elf32_frv_vtentry_howto = |
| HOWTO (R_FRV_GNU_VTENTRY, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 0, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| _bfd_elf_rel_vtable_reloc_fn, /* special_function */ |
| "R_FRV_GNU_VTENTRY", /* name */ |
| FALSE, /* partial_inplace */ |
| 0, /* src_mask */ |
| 0, /* dst_mask */ |
| FALSE); /* pcrel_offset */ |
| |
| /* Map BFD reloc types to FRV ELF reloc types. */ |
| #if 0 |
| struct frv_reloc_map |
| { |
| unsigned int bfd_reloc_val; |
| unsigned int frv_reloc_val; |
| }; |
| |
| static const struct frv_reloc_map frv_reloc_map [] = |
| { |
| { BFD_RELOC_NONE, R_FRV_NONE }, |
| { BFD_RELOC_32, R_FRV_32 }, |
| { BFD_RELOC_FRV_LABEL16, R_FRV_LABEL16 }, |
| { BFD_RELOC_FRV_LABEL24, R_FRV_LABEL24 }, |
| { BFD_RELOC_FRV_LO16, R_FRV_LO16 }, |
| { BFD_RELOC_FRV_HI16, R_FRV_HI16 }, |
| { BFD_RELOC_FRV_GPREL12, R_FRV_GPREL12 }, |
| { BFD_RELOC_FRV_GPRELU12, R_FRV_GPRELU12 }, |
| { BFD_RELOC_FRV_GPREL32, R_FRV_GPREL32 }, |
| { BFD_RELOC_FRV_GPRELHI, R_FRV_GPRELHI }, |
| { BFD_RELOC_FRV_GPRELLO, R_FRV_GPRELLO }, |
| { BFD_RELOC_VTABLE_INHERIT, R_FRV_GNU_VTINHERIT }, |
| { BFD_RELOC_VTABLE_ENTRY, R_FRV_GNU_VTENTRY }, |
| }; |
| #endif |
| |
| /* Handle an FRV small data reloc. */ |
| |
| static bfd_reloc_status_type |
| elf32_frv_relocate_gprel12 (info, input_bfd, input_section, relocation, |
| contents, value) |
| struct bfd_link_info *info; |
| bfd *input_bfd; |
| asection *input_section; |
| Elf_Internal_Rela *relocation; |
| bfd_byte *contents; |
| bfd_vma value; |
| { |
| bfd_vma insn; |
| bfd_vma gp; |
| struct bfd_link_hash_entry *h; |
| |
| h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE); |
| |
| gp = (h->u.def.value |
| + h->u.def.section->output_section->vma |
| + h->u.def.section->output_offset); |
| |
| value -= input_section->output_section->vma; |
| value -= (gp - input_section->output_section->vma); |
| |
| insn = bfd_get_32 (input_bfd, contents + relocation->r_offset); |
| |
| value += relocation->r_addend; |
| |
| if ((long) value > 0x7ff || (long) value < -0x800) |
| return bfd_reloc_overflow; |
| |
| bfd_put_32 (input_bfd, |
| (insn & 0xfffff000) | (value & 0xfff), |
| contents + relocation->r_offset); |
| |
| return bfd_reloc_ok; |
| } |
| |
| /* Handle an FRV small data reloc. for the u12 field. */ |
| |
| static bfd_reloc_status_type |
| elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, relocation, |
| contents, value) |
| struct bfd_link_info *info; |
| bfd *input_bfd; |
| asection *input_section; |
| Elf_Internal_Rela *relocation; |
| bfd_byte *contents; |
| bfd_vma value; |
| { |
| bfd_vma insn; |
| bfd_vma gp; |
| struct bfd_link_hash_entry *h; |
| bfd_vma mask; |
| |
| h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE); |
| |
| gp = (h->u.def.value |
| + h->u.def.section->output_section->vma |
| + h->u.def.section->output_offset); |
| |
| value -= input_section->output_section->vma; |
| value -= (gp - input_section->output_section->vma); |
| |
| insn = bfd_get_32 (input_bfd, contents + relocation->r_offset); |
| |
| value += relocation->r_addend; |
| |
| if ((long) value > 0x7ff || (long) value < -0x800) |
| return bfd_reloc_overflow; |
| |
| /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */ |
| mask = 0x3f03f; |
| insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f); |
| |
| bfd_put_32 (input_bfd, insn, contents + relocation->r_offset); |
| |
| return bfd_reloc_ok; |
| } |
| |
| /* Handle an FRV ELF HI16 reloc. */ |
| |
| static bfd_reloc_status_type |
| elf32_frv_relocate_hi16 (input_bfd, relhi, contents, value) |
| bfd *input_bfd; |
| Elf_Internal_Rela *relhi; |
| bfd_byte *contents; |
| bfd_vma value; |
| { |
| bfd_vma insn; |
| |
| insn = bfd_get_32 (input_bfd, contents + relhi->r_offset); |
| |
| value += relhi->r_addend; |
| value = ((value >> 16) & 0xffff); |
| |
| insn = (insn & 0xffff0000) | value; |
| |
| if ((long) value > 0xffff || (long) value < -0x10000) |
| return bfd_reloc_overflow; |
| |
| bfd_put_32 (input_bfd, insn, contents + relhi->r_offset); |
| return bfd_reloc_ok; |
| |
| } |
| static bfd_reloc_status_type |
| elf32_frv_relocate_lo16 (input_bfd, rello, contents, value) |
| bfd *input_bfd; |
| Elf_Internal_Rela *rello; |
| bfd_byte *contents; |
| bfd_vma value; |
| { |
| bfd_vma insn; |
| |
| insn = bfd_get_32 (input_bfd, contents + rello->r_offset); |
| |
| value += rello->r_addend; |
| value = value & 0xffff; |
| |
| insn = (insn & 0xffff0000) | value; |
| |
| if ((long) value > 0xffff || (long) value < -0x10000) |
| return bfd_reloc_overflow; |
| |
| bfd_put_32 (input_bfd, insn, contents + rello->r_offset); |
| return bfd_reloc_ok; |
| } |
| |
| /* Perform the relocation for the CALL label24 instruction. */ |
| |
| static bfd_reloc_status_type |
| elf32_frv_relocate_label24 (input_bfd, input_section, rello, contents, value) |
| bfd *input_bfd; |
| asection *input_section; |
| Elf_Internal_Rela *rello; |
| bfd_byte *contents; |
| bfd_vma value; |
| { |
| bfd_vma insn; |
| bfd_vma label6; |
| bfd_vma label18; |
| |
| /* The format for the call instruction is: |
| |
| 0 000000 0001111 000000000000000000 |
| label6 opcode label18 |
| |
| The branch calculation is: pc + (4*label24) |
| where label24 is the concatenation of label6 and label18. */ |
| |
| /* Grab the instruction. */ |
| insn = bfd_get_32 (input_bfd, contents + rello->r_offset); |
| |
| value -= input_section->output_section->vma + input_section->output_offset; |
| value -= rello->r_offset; |
| value += rello->r_addend; |
| |
| value = value >> 2; |
| |
| label6 = value & 0xfc0000; |
| label6 = label6 << 7; |
| |
| label18 = value & 0x3ffff; |
| |
| insn = insn & 0x803c0000; |
| insn = insn | label6; |
| insn = insn | label18; |
| |
| bfd_put_32 (input_bfd, insn, contents + rello->r_offset); |
| |
| return bfd_reloc_ok; |
| } |
| |
| static bfd_reloc_status_type |
| elf32_frv_relocate_gprelhi (info, input_bfd, input_section, relocation, |
| contents, value) |
| struct bfd_link_info *info; |
| bfd *input_bfd; |
| asection *input_section; |
| Elf_Internal_Rela *relocation; |
| bfd_byte *contents; |
| bfd_vma value; |
| { |
| bfd_vma insn; |
| bfd_vma gp; |
| struct bfd_link_hash_entry *h; |
| |
| h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE); |
| |
| gp = (h->u.def.value |
| + h->u.def.section->output_section->vma |
| + h->u.def.section->output_offset); |
| |
| value -= input_section->output_section->vma; |
| value -= (gp - input_section->output_section->vma); |
| value += relocation->r_addend; |
| value = ((value >> 16) & 0xffff); |
| |
| if ((long) value > 0xffff || (long) value < -0x10000) |
| return bfd_reloc_overflow; |
| |
| insn = bfd_get_32 (input_bfd, contents + relocation->r_offset); |
| insn = (insn & 0xffff0000) | value; |
| |
| bfd_put_32 (input_bfd, insn, contents + relocation->r_offset); |
| return bfd_reloc_ok; |
| } |
| |
| static bfd_reloc_status_type |
| elf32_frv_relocate_gprello (info, input_bfd, input_section, relocation, |
| contents, value) |
| struct bfd_link_info *info; |
| bfd *input_bfd; |
| asection *input_section; |
| Elf_Internal_Rela *relocation; |
| bfd_byte *contents; |
| bfd_vma value; |
| { |
| bfd_vma insn; |
| bfd_vma gp; |
| struct bfd_link_hash_entry *h; |
| |
| h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE); |
| |
| gp = (h->u.def.value |
| + h->u.def.section->output_section->vma |
| + h->u.def.section->output_offset); |
| |
| value -= input_section->output_section->vma; |
| value -= (gp - input_section->output_section->vma); |
| value += relocation->r_addend; |
| value = value & 0xffff; |
| |
| if ((long) value > 0xffff || (long) value < -0x10000) |
| return bfd_reloc_overflow; |
| |
| insn = bfd_get_32 (input_bfd, contents + relocation->r_offset); |
| insn = (insn & 0xffff0000) | value; |
| |
| bfd_put_32 (input_bfd, insn, contents + relocation->r_offset); |
| |
| return bfd_reloc_ok; |
| } |
| |
| static reloc_howto_type * |
| frv_reloc_type_lookup (abfd, code) |
| bfd *abfd ATTRIBUTE_UNUSED; |
| bfd_reloc_code_real_type code; |
| { |
| switch (code) |
| { |
| default: |
| break; |
| |
| case BFD_RELOC_NONE: |
| return &elf32_frv_howto_table[ (int) R_FRV_NONE]; |
| |
| case BFD_RELOC_32: |
| case BFD_RELOC_CTOR: |
| return &elf32_frv_howto_table[ (int) R_FRV_32]; |
| |
| case BFD_RELOC_FRV_LABEL16: |
| return &elf32_frv_howto_table[ (int) R_FRV_LABEL16]; |
| |
| case BFD_RELOC_FRV_LABEL24: |
| return &elf32_frv_howto_table[ (int) R_FRV_LABEL24]; |
| |
| case BFD_RELOC_FRV_LO16: |
| return &elf32_frv_howto_table[ (int) R_FRV_LO16]; |
| |
| case BFD_RELOC_FRV_HI16: |
| return &elf32_frv_howto_table[ (int) R_FRV_HI16]; |
| |
| case BFD_RELOC_FRV_GPREL12: |
| return &elf32_frv_howto_table[ (int) R_FRV_GPREL12]; |
| |
| case BFD_RELOC_FRV_GPRELU12: |
| return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12]; |
| |
| case BFD_RELOC_FRV_GPREL32: |
| return &elf32_frv_howto_table[ (int) R_FRV_GPREL32]; |
| |
| case BFD_RELOC_FRV_GPRELHI: |
| return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI]; |
| |
| case BFD_RELOC_FRV_GPRELLO: |
| return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO]; |
| |
| case BFD_RELOC_VTABLE_INHERIT: |
| return &elf32_frv_vtinherit_howto; |
| |
| case BFD_RELOC_VTABLE_ENTRY: |
| return &elf32_frv_vtentry_howto; |
| } |
| |
| return NULL; |
| } |
| |
| /* Set the howto pointer for an FRV ELF reloc. */ |
| |
| static void |
| frv_info_to_howto_rela (abfd, cache_ptr, dst) |
| bfd *abfd ATTRIBUTE_UNUSED; |
| arelent *cache_ptr; |
| Elf_Internal_Rela *dst; |
| { |
| unsigned int r_type; |
| |
| r_type = ELF32_R_TYPE (dst->r_info); |
| switch (r_type) |
| { |
| case R_FRV_GNU_VTINHERIT: |
| cache_ptr->howto = &elf32_frv_vtinherit_howto; |
| break; |
| |
| case R_FRV_GNU_VTENTRY: |
| cache_ptr->howto = &elf32_frv_vtentry_howto; |
| break; |
| |
| default: |
| cache_ptr->howto = & elf32_frv_howto_table [r_type]; |
| break; |
| } |
| } |
| |
| /* Perform a single relocation. By default we use the standard BFD |
| routines, but a few relocs, we have to do them ourselves. */ |
| |
| static bfd_reloc_status_type |
| frv_final_link_relocate (howto, input_bfd, input_section, contents, rel, |
| relocation) |
| reloc_howto_type *howto; |
| bfd *input_bfd; |
| asection *input_section; |
| bfd_byte *contents; |
| Elf_Internal_Rela *rel; |
| bfd_vma relocation; |
| { |
| return _bfd_final_link_relocate (howto, input_bfd, input_section, |
| contents, rel->r_offset, relocation, |
| rel->r_addend); |
| } |
| |
| |
| /* Relocate an FRV ELF section. |
| |
| The RELOCATE_SECTION function is called by the new ELF backend linker |
| to handle the relocations for a section. |
| |
| The relocs are always passed as Rela structures; if the section |
| actually uses Rel structures, the r_addend field will always be |
| zero. |
| |
| This function is responsible for adjusting the section contents as |
| necessary, and (if using Rela relocs and generating a relocateable |
| 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 relocateable output, this function must handle |
| STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| going to be the section symbol corresponding to the output |
| section, which means that the addend must be adjusted |
| accordingly. */ |
| |
| static bfd_boolean |
| elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section, |
| contents, relocs, local_syms, local_sections) |
| bfd *output_bfd ATTRIBUTE_UNUSED; |
| struct bfd_link_info *info; |
| bfd *input_bfd; |
| asection *input_section; |
| bfd_byte *contents; |
| Elf_Internal_Rela *relocs; |
| Elf_Internal_Sym *local_syms; |
| asection **local_sections; |
| { |
| Elf_Internal_Shdr *symtab_hdr; |
| struct elf_link_hash_entry **sym_hashes; |
| Elf_Internal_Rela *rel; |
| Elf_Internal_Rela *relend; |
| |
| if (info->relocateable) |
| return TRUE; |
| |
| symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; |
| sym_hashes = elf_sym_hashes (input_bfd); |
| relend = relocs + input_section->reloc_count; |
| |
| for (rel = relocs; rel < relend; rel ++) |
| { |
| reloc_howto_type *howto; |
| unsigned long r_symndx; |
| Elf_Internal_Sym *sym; |
| asection *sec; |
| struct elf_link_hash_entry *h; |
| bfd_vma relocation; |
| bfd_reloc_status_type r; |
| const char * name = NULL; |
| int r_type; |
| |
| r_type = ELF32_R_TYPE (rel->r_info); |
| |
| if ( r_type == R_FRV_GNU_VTINHERIT |
| || r_type == R_FRV_GNU_VTENTRY) |
| continue; |
| |
| /* This is a final link. */ |
| r_symndx = ELF32_R_SYM (rel->r_info); |
| howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info); |
| h = NULL; |
| sym = NULL; |
| sec = NULL; |
| |
| if (r_symndx < symtab_hdr->sh_info) |
| { |
| sym = local_syms + r_symndx; |
| sec = local_sections [r_symndx]; |
| relocation = (sec->output_section->vma |
| + sec->output_offset |
| + sym->st_value); |
| |
| name = bfd_elf_string_from_elf_section |
| (input_bfd, symtab_hdr->sh_link, sym->st_name); |
| name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name; |
| } |
| 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; |
| |
| name = h->root.root.string; |
| |
| if (h->root.type == bfd_link_hash_defined |
| || h->root.type == bfd_link_hash_defweak) |
| { |
| sec = h->root.u.def.section; |
| relocation = (h->root.u.def.value |
| + sec->output_section->vma |
| + sec->output_offset); |
| } |
| else if (h->root.type == bfd_link_hash_undefweak) |
| { |
| relocation = 0; |
| } |
| else |
| { |
| if (! ((*info->callbacks->undefined_symbol) |
| (info, h->root.root.string, input_bfd, |
| input_section, rel->r_offset, TRUE))) |
| return FALSE; |
| relocation = 0; |
| } |
| } |
| |
| if (r_type == R_FRV_HI16) |
| r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation); |
| |
| else if (r_type == R_FRV_LO16) |
| r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation); |
| |
| else if (r_type == R_FRV_LABEL24) |
| r = elf32_frv_relocate_label24 (input_bfd, input_section, rel, |
| contents, relocation); |
| |
| else if (r_type == R_FRV_GPREL12) |
| r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel, |
| contents, relocation); |
| |
| else if (r_type == R_FRV_GPRELU12) |
| r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel, |
| contents, relocation); |
| |
| else if (r_type == R_FRV_GPRELLO) |
| r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel, |
| contents, relocation); |
| |
| else if (r_type == R_FRV_GPRELHI) |
| r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel, |
| contents, relocation); |
| |
| else |
| r = frv_final_link_relocate (howto, input_bfd, input_section, contents, |
| rel, relocation); |
| |
| if (r != bfd_reloc_ok) |
| { |
| const char * msg = (const char *) NULL; |
| |
| switch (r) |
| { |
| case bfd_reloc_overflow: |
| r = info->callbacks->reloc_overflow |
| (info, name, howto->name, (bfd_vma) 0, |
| input_bfd, input_section, rel->r_offset); |
| break; |
| |
| case bfd_reloc_undefined: |
| r = 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) |
| r = info->callbacks->warning |
| (info, msg, name, input_bfd, input_section, rel->r_offset); |
| |
| if (! r) |
| return FALSE; |
| } |
| } |
| |
| return TRUE; |
| } |
| |
| /* Return the section that should be marked against GC for a given |
| relocation. */ |
| |
| static asection * |
| elf32_frv_gc_mark_hook (sec, info, rel, h, sym) |
| asection *sec; |
| struct bfd_link_info *info ATTRIBUTE_UNUSED; |
| Elf_Internal_Rela *rel; |
| struct elf_link_hash_entry *h; |
| Elf_Internal_Sym *sym; |
| { |
| if (h != NULL) |
| { |
| switch (ELF32_R_TYPE (rel->r_info)) |
| { |
| case R_FRV_GNU_VTINHERIT: |
| case R_FRV_GNU_VTENTRY: |
| break; |
| |
| default: |
| switch (h->root.type) |
| { |
| default: |
| break; |
| |
| case bfd_link_hash_defined: |
| case bfd_link_hash_defweak: |
| return h->root.u.def.section; |
| |
| case bfd_link_hash_common: |
| return h->root.u.c.p->section; |
| } |
| } |
| } |
| else |
| return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
| |
| return NULL; |
| } |
| |
| /* Update the got entry reference counts for the section being removed. */ |
| |
| static bfd_boolean |
| elf32_frv_gc_sweep_hook (abfd, info, sec, relocs) |
| bfd *abfd ATTRIBUTE_UNUSED; |
| struct bfd_link_info *info ATTRIBUTE_UNUSED; |
| asection *sec ATTRIBUTE_UNUSED; |
| const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED; |
| { |
| return TRUE; |
| } |
| |
| |
| /* Hook called by the linker routine which adds symbols from an object |
| file. We use it to put .comm items in .scomm, and not .comm. */ |
| |
| static bfd_boolean |
| elf32_frv_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) |
| bfd *abfd; |
| struct bfd_link_info *info; |
| const Elf_Internal_Sym *sym; |
| const char **namep ATTRIBUTE_UNUSED; |
| flagword *flagsp ATTRIBUTE_UNUSED; |
| asection **secp; |
| bfd_vma *valp; |
| { |
| if (sym->st_shndx == SHN_COMMON |
| && !info->relocateable |
| && (int)sym->st_size <= (int)bfd_get_gp_size (abfd)) |
| { |
| /* Common symbols less than or equal to -G nn bytes are |
| automatically put into .sbss. */ |
| |
| asection *scomm = bfd_get_section_by_name (abfd, ".scommon"); |
| |
| if (scomm == NULL) |
| { |
| scomm = bfd_make_section (abfd, ".scommon"); |
| if (scomm == NULL |
| || !bfd_set_section_flags (abfd, scomm, (SEC_ALLOC |
| | SEC_IS_COMMON |
| | SEC_LINKER_CREATED))) |
| return FALSE; |
| } |
| |
| *secp = scomm; |
| *valp = sym->st_size; |
| } |
| |
| return TRUE; |
| } |
| /* Look through the relocs for a section during the first phase. |
| Since we don't do .gots or .plts, we just need to consider the |
| virtual table relocs for gc. */ |
| |
| static bfd_boolean |
| elf32_frv_check_relocs (abfd, info, sec, relocs) |
| bfd *abfd; |
| struct bfd_link_info *info; |
| asection *sec; |
| const Elf_Internal_Rela *relocs; |
| { |
| Elf_Internal_Shdr *symtab_hdr; |
| struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; |
| const Elf_Internal_Rela *rel; |
| const Elf_Internal_Rela *rel_end; |
| |
| if (info->relocateable) |
| return TRUE; |
| |
| symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
| sym_hashes = elf_sym_hashes (abfd); |
| sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym); |
| if (!elf_bad_symtab (abfd)) |
| sym_hashes_end -= symtab_hdr->sh_info; |
| |
| rel_end = relocs + sec->reloc_count; |
| for (rel = relocs; rel < rel_end; rel++) |
| { |
| struct elf_link_hash_entry *h; |
| unsigned long r_symndx; |
| |
| r_symndx = ELF32_R_SYM (rel->r_info); |
| if (r_symndx < symtab_hdr->sh_info) |
| h = NULL; |
| else |
| h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| |
| switch (ELF32_R_TYPE (rel->r_info)) |
| { |
| /* This relocation describes the C++ object vtable hierarchy. |
| Reconstruct it for later use during GC. */ |
| case R_FRV_GNU_VTINHERIT: |
| if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| return FALSE; |
| break; |
| |
| /* This relocation describes which C++ vtable entries are actually |
| used. Record for later use during GC. */ |
| case R_FRV_GNU_VTENTRY: |
| if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend)) |
| return FALSE; |
| break; |
| } |
| } |
| |
| return TRUE; |
| } |
| |
| |
| /* Return the machine subcode from the ELF e_flags header. */ |
| |
| static int |
| elf32_frv_machine (abfd) |
| bfd *abfd; |
| { |
| switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK) |
| { |
| default: break; |
| case EF_FRV_CPU_FR500: return bfd_mach_fr500; |
| case EF_FRV_CPU_FR400: return bfd_mach_fr400; |
| case EF_FRV_CPU_FR300: return bfd_mach_fr300; |
| case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple; |
| case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat; |
| } |
| |
| return bfd_mach_frv; |
| } |
| |
| /* Set the right machine number for a FRV ELF file. */ |
| |
| static bfd_boolean |
| elf32_frv_object_p (abfd) |
| bfd *abfd; |
| { |
| bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd)); |
| return TRUE; |
| } |
| |
| /* Function to set the ELF flag bits. */ |
| |
| static bfd_boolean |
| frv_elf_set_private_flags (abfd, flags) |
| bfd *abfd; |
| flagword flags; |
| { |
| elf_elfheader (abfd)->e_flags = flags; |
| elf_flags_init (abfd) = TRUE; |
| return TRUE; |
| } |
| |
| /* Copy backend specific data from one object module to another. */ |
| |
| static bfd_boolean |
| frv_elf_copy_private_bfd_data (ibfd, obfd) |
| bfd *ibfd; |
| bfd *obfd; |
| { |
| if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
| || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
| return TRUE; |
| |
| BFD_ASSERT (!elf_flags_init (obfd) |
| || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags); |
| |
| elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; |
| elf_flags_init (obfd) = TRUE; |
| return TRUE; |
| } |
| |
| /* Merge backend specific data from an object file to the output |
| object file when linking. */ |
| |
| static bfd_boolean |
| frv_elf_merge_private_bfd_data (ibfd, obfd) |
| bfd *ibfd; |
| bfd *obfd; |
| { |
| flagword old_flags, old_partial; |
| flagword new_flags, new_partial; |
| bfd_boolean error = FALSE; |
| char new_opt[80]; |
| char old_opt[80]; |
| |
| new_opt[0] = old_opt[0] = '\0'; |
| new_flags = elf_elfheader (ibfd)->e_flags; |
| old_flags = elf_elfheader (obfd)->e_flags; |
| |
| #ifdef DEBUG |
| (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s", |
| old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no", |
| bfd_get_filename (ibfd)); |
| #endif |
| |
| if (!elf_flags_init (obfd)) /* First call, no flags set. */ |
| { |
| elf_flags_init (obfd) = TRUE; |
| old_flags = new_flags; |
| } |
| |
| else if (new_flags == old_flags) /* Compatible flags are ok. */ |
| ; |
| |
| else /* Possibly incompatible flags. */ |
| { |
| /* Warn if different # of gprs are used. Note, 0 means nothing is |
| said about the size of gprs. */ |
| new_partial = (new_flags & EF_FRV_GPR_MASK); |
| old_partial = (old_flags & EF_FRV_GPR_MASK); |
| if (new_partial == old_partial) |
| ; |
| |
| else if (new_partial == 0) |
| ; |
| |
| else if (old_partial == 0) |
| old_flags |= new_partial; |
| |
| else |
| { |
| switch (new_partial) |
| { |
| default: strcat (new_opt, " -mgpr-??"); break; |
| case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break; |
| case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break; |
| } |
| |
| switch (old_partial) |
| { |
| default: strcat (old_opt, " -mgpr-??"); break; |
| case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break; |
| case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break; |
| } |
| } |
| |
| /* Warn if different # of fprs are used. Note, 0 means nothing is |
| said about the size of fprs. */ |
| new_partial = (new_flags & EF_FRV_FPR_MASK); |
| old_partial = (old_flags & EF_FRV_FPR_MASK); |
| if (new_partial == old_partial) |
| ; |
| |
| else if (new_partial == 0) |
| ; |
| |
| else if (old_partial == 0) |
| old_flags |= new_partial; |
| |
| else |
| { |
| switch (new_partial) |
| { |
| default: strcat (new_opt, " -mfpr-?"); break; |
| case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break; |
| case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break; |
| case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break; |
| } |
| |
| switch (old_partial) |
| { |
| default: strcat (old_opt, " -mfpr-?"); break; |
| case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break; |
| case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break; |
| case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break; |
| } |
| } |
| |
| /* Warn if different dword support was used. Note, 0 means nothing is |
| said about the dword support. */ |
| new_partial = (new_flags & EF_FRV_DWORD_MASK); |
| old_partial = (old_flags & EF_FRV_DWORD_MASK); |
| if (new_partial == old_partial) |
| ; |
| |
| else if (new_partial == 0) |
| ; |
| |
| else if (old_partial == 0) |
| old_flags |= new_partial; |
| |
| else |
| { |
| switch (new_partial) |
| { |
| default: strcat (new_opt, " -mdword-?"); break; |
| case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break; |
| case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break; |
| } |
| |
| switch (old_partial) |
| { |
| default: strcat (old_opt, " -mdword-?"); break; |
| case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break; |
| case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break; |
| } |
| } |
| |
| /* Or in flags that accumulate (ie, if one module uses it, mark that the |
| feature is used. */ |
| old_flags |= new_flags & (EF_FRV_DOUBLE |
| | EF_FRV_MEDIA |
| | EF_FRV_MULADD |
| | EF_FRV_NON_PIC_RELOCS); |
| |
| /* If any module was compiled without -G0, clear the G0 bit. */ |
| old_flags = ((old_flags & ~ EF_FRV_G0) |
| | (old_flags & new_flags & EF_FRV_G0)); |
| |
| /* If any module was compiled without -mnopack, clear the mnopack bit. */ |
| old_flags = ((old_flags & ~ EF_FRV_NOPACK) |
| | (old_flags & new_flags & EF_FRV_NOPACK)); |
| |
| /* We don't have to do anything if the pic flags are the same, or the new |
| module(s) were compiled with -mlibrary-pic. */ |
| new_partial = (new_flags & EF_FRV_PIC_FLAGS); |
| old_partial = (old_flags & EF_FRV_PIC_FLAGS); |
| if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0)) |
| ; |
| |
| /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic |
| flags if any from the new module. */ |
| else if ((old_partial & EF_FRV_LIBPIC) != 0) |
| old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial; |
| |
| /* If we have mixtures of -fpic and -fPIC, or in both bits. */ |
| else if (new_partial != 0 && old_partial != 0) |
| old_flags |= new_partial; |
| |
| /* One module was compiled for pic and the other was not, see if we have |
| had any relocations that are not pic-safe. */ |
| else |
| { |
| if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0) |
| old_flags |= new_partial; |
| else |
| { |
| old_flags &= ~ EF_FRV_PIC_FLAGS; |
| #ifndef FRV_NO_PIC_ERROR |
| error = TRUE; |
| (*_bfd_error_handler) |
| (_("%s: compiled with %s and linked with modules that use non-pic relocations"), |
| bfd_get_filename (ibfd), |
| (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic"); |
| #endif |
| } |
| } |
| |
| /* Warn if different cpu is used (allow a specific cpu to override |
| the generic cpu). */ |
| new_partial = (new_flags & EF_FRV_CPU_MASK); |
| old_partial = (old_flags & EF_FRV_CPU_MASK); |
| if (new_partial == old_partial) |
| ; |
| |
| else if (new_partial == EF_FRV_CPU_GENERIC) |
| ; |
| |
| else if (old_partial == EF_FRV_CPU_GENERIC) |
| old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial; |
| |
| else |
| { |
| switch (new_partial) |
| { |
| default: strcat (new_opt, " -mcpu=?"); break; |
| case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break; |
| case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break; |
| case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break; |
| case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break; |
| case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break; |
| case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break; |
| } |
| |
| switch (old_partial) |
| { |
| default: strcat (old_opt, " -mcpu=?"); break; |
| case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break; |
| case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break; |
| case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break; |
| case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break; |
| case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break; |
| case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break; |
| } |
| } |
| |
| /* Print out any mismatches from above. */ |
| if (new_opt[0]) |
| { |
| error = TRUE; |
| (*_bfd_error_handler) |
| (_("%s: compiled with %s and linked with modules compiled with %s"), |
| bfd_get_filename (ibfd), new_opt, old_opt); |
| } |
| |
| /* Warn about any other mismatches */ |
| new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS); |
| old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS); |
| if (new_partial != old_partial) |
| { |
| old_flags |= new_partial; |
| error = TRUE; |
| (*_bfd_error_handler) |
| (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"), |
| bfd_get_filename (ibfd), (long)new_partial, (long)old_partial); |
| } |
| } |
| |
| /* If the cpu is -mcpu=simple, then set the -mnopack bit. */ |
| if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE) |
| old_flags |= EF_FRV_NOPACK; |
| |
| /* Update the old flags now with changes made above. */ |
| old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK; |
| elf_elfheader (obfd)->e_flags = old_flags; |
| if (old_partial != (old_flags & EF_FRV_CPU_MASK)) |
| bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd)); |
| |
| if (error) |
| bfd_set_error (bfd_error_bad_value); |
| |
| return !error; |
| } |
| |
| |
| bfd_boolean |
| frv_elf_print_private_bfd_data (abfd, ptr) |
| bfd *abfd; |
| PTR ptr; |
| { |
| FILE *file = (FILE *) ptr; |
| flagword flags; |
| |
| BFD_ASSERT (abfd != NULL && ptr != NULL); |
| |
| /* Print normal ELF private data. */ |
| _bfd_elf_print_private_bfd_data (abfd, ptr); |
| |
| flags = elf_elfheader (abfd)->e_flags; |
| fprintf (file, _("private flags = 0x%lx:"), (long)flags); |
| |
| switch (flags & EF_FRV_CPU_MASK) |
| { |
| default: break; |
| case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break; |
| case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break; |
| case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break; |
| case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break; |
| case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break; |
| } |
| |
| switch (flags & EF_FRV_GPR_MASK) |
| { |
| default: break; |
| case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break; |
| case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break; |
| } |
| |
| switch (flags & EF_FRV_FPR_MASK) |
| { |
| default: break; |
| case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break; |
| case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break; |
| case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break; |
| } |
| |
| switch (flags & EF_FRV_DWORD_MASK) |
| { |
| default: break; |
| case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break; |
| case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break; |
| } |
| |
| if (flags & EF_FRV_DOUBLE) |
| fprintf (file, " -mdouble"); |
| |
| if (flags & EF_FRV_MEDIA) |
| fprintf (file, " -mmedia"); |
| |
| if (flags & EF_FRV_MULADD) |
| fprintf (file, " -mmuladd"); |
| |
| if (flags & EF_FRV_PIC) |
| fprintf (file, " -fpic"); |
| |
| if (flags & EF_FRV_BIGPIC) |
| fprintf (file, " -fPIC"); |
| |
| if (flags & EF_FRV_NON_PIC_RELOCS) |
| fprintf (file, " non-pic relocations"); |
| |
| if (flags & EF_FRV_G0) |
| fprintf (file, " -G0"); |
| |
| fputc ('\n', file); |
| return TRUE; |
| } |
| |
| |
| #define ELF_ARCH bfd_arch_frv |
| #define ELF_MACHINE_CODE EM_CYGNUS_FRV |
| #define ELF_MAXPAGESIZE 0x1000 |
| |
| #define TARGET_BIG_SYM bfd_elf32_frv_vec |
| #define TARGET_BIG_NAME "elf32-frv" |
| |
| #define elf_info_to_howto_rel NULL |
| #define elf_info_to_howto frv_info_to_howto_rela |
| #define elf_backend_relocate_section elf32_frv_relocate_section |
| #define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook |
| #define elf_backend_gc_sweep_hook elf32_frv_gc_sweep_hook |
| #define elf_backend_check_relocs elf32_frv_check_relocs |
| #define elf_backend_object_p elf32_frv_object_p |
| #define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook |
| |
| #define elf_backend_can_gc_sections 1 |
| #define elf_backend_rela_normal 1 |
| |
| #define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup |
| #define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags |
| #define bfd_elf32_bfd_copy_private_bfd_data frv_elf_copy_private_bfd_data |
| #define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data |
| #define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data |
| |
| #include "elf32-target.h" |