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Currently only in bfd and binutils. ChangeLog/ * configure.ac: Add aarch64-*-darwin* and arm-*-darwin*. * configure: Regenerate. bfd/ChangeLog/ * targets.c (aarch64_mach_o_vec, arm_mach_o_vec): Declare. (_bfd_target_vector): Add new vectors. * reloc.c (BFD_RELOC_MACH_O_SUBTRACTOR32) (BFD_RELOC_MACH_O_SUBTRACTOR64, BFD_RELOC_MACH_O_ARM64_ADDEND) (BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGE21) (BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGEOFF12) (BFD_RELOC_MACH_O_ARM64_POINTER_TO_GOT): New relocations. (BFD_RELOC_MACH_O_X86_64_SUBTRACTOR32) (BFD_RELOC_MACH_O_X86_64_SUBTRACTOR64): Remove. * mach-o-x86-64.c (bfd_mach_o_x86_64_swap_reloc_out): Change name of subtractor relocations. * config.bfd: Handle aarch64-*-darwin*, arm-*-darwin*. * Makefile.am (BFD32_BACKENDS): Add mach-o-arm.lo. (BFD32_BACKENDS_CFILES): Add mach-o-arm.c. (BFD64_BACKENDS): Add mach-o-aarch64.lo. (BFD64_BACKENDS_CFILES): Add mach-o-aarch64.c. * configure.ac: Handle aarch64_mach_o_vec and arm_mach_o_vec. * mach-o-aarch64.c: New file. * mach-o-arm.c: New file. * Makefile.in: Regenerate. * bfd-in2.h: Regenerate. * configure: Regenerate. * libbfd.h: Regenerate.gdb-7.11-branch
Tristan Gingold
11 years ago
16 changed files with 762 additions and 18 deletions
@ -0,0 +1,308 @@ |
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/* AArch-64 Mach-O support for BFD.
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Copyright (C) 2015 Free Software Foundation, Inc. |
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This file is part of BFD, the Binary File Descriptor library. |
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|
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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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|
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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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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
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MA 02110-1301, USA. */ |
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|
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#include "sysdep.h" |
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#include "mach-o.h" |
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#include "bfd.h" |
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#include "libbfd.h" |
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#include "libiberty.h" |
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#include "mach-o/arm64.h" |
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#define bfd_mach_o_object_p bfd_mach_o_arm64_object_p |
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#define bfd_mach_o_core_p bfd_mach_o_arm64_core_p |
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#define bfd_mach_o_mkobject bfd_mach_o_arm64_mkobject |
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|
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#define bfd_mach_o_canonicalize_one_reloc \ |
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bfd_mach_o_arm64_canonicalize_one_reloc |
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#define bfd_mach_o_swap_reloc_out NULL |
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#define bfd_mach_o_bfd_reloc_type_lookup bfd_mach_o_arm64_bfd_reloc_type_lookup |
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#define bfd_mach_o_bfd_reloc_name_lookup bfd_mach_o_arm64_bfd_reloc_name_lookup |
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|
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#define bfd_mach_o_print_thread NULL |
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#define bfd_mach_o_tgt_seg_table NULL |
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#define bfd_mach_o_section_type_valid_for_tgt NULL |
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static const bfd_target * |
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bfd_mach_o_arm64_object_p (bfd *abfd) |
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{ |
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return bfd_mach_o_header_p (abfd, 0, 0, BFD_MACH_O_CPU_TYPE_ARM64); |
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} |
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static const bfd_target * |
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bfd_mach_o_arm64_core_p (bfd *abfd) |
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{ |
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return bfd_mach_o_header_p (abfd, 0, |
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BFD_MACH_O_MH_CORE, BFD_MACH_O_CPU_TYPE_ARM64); |
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} |
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static bfd_boolean |
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bfd_mach_o_arm64_mkobject (bfd *abfd) |
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{ |
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bfd_mach_o_data_struct *mdata; |
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if (!bfd_mach_o_mkobject_init (abfd)) |
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return FALSE; |
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mdata = bfd_mach_o_get_data (abfd); |
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mdata->header.magic = BFD_MACH_O_MH_MAGIC; |
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mdata->header.cputype = BFD_MACH_O_CPU_TYPE_ARM64; |
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mdata->header.cpusubtype = BFD_MACH_O_CPU_SUBTYPE_ARM64_ALL; |
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mdata->header.byteorder = BFD_ENDIAN_LITTLE; |
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mdata->header.version = 1; |
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return TRUE; |
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} |
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/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */ |
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#define MINUS_ONE (~ (bfd_vma) 0) |
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static reloc_howto_type arm64_howto_table[]= |
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{ |
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/* 0 */ |
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HOWTO (BFD_RELOC_64, 0, 4, 64, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "64", |
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FALSE, MINUS_ONE, MINUS_ONE, FALSE), |
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HOWTO (BFD_RELOC_32, 0, 2, 32, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "32", |
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FALSE, 0xffffffff, 0xffffffff, FALSE), |
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HOWTO (BFD_RELOC_16, 0, 1, 16, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "16", |
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FALSE, 0xffff, 0xffff, FALSE), |
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HOWTO (BFD_RELOC_8, 0, 0, 8, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "8", |
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FALSE, 0xff, 0xff, FALSE), |
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/* 4 */ |
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HOWTO (BFD_RELOC_64_PCREL, 0, 4, 64, TRUE, 0, |
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complain_overflow_bitfield, |
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NULL, "DISP64", |
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FALSE, MINUS_ONE, MINUS_ONE, TRUE), |
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HOWTO (BFD_RELOC_32_PCREL, 0, 2, 32, TRUE, 0, |
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complain_overflow_bitfield, |
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NULL, "DISP32", |
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FALSE, 0xffffffff, 0xffffffff, TRUE), |
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HOWTO (BFD_RELOC_16_PCREL, 0, 1, 16, TRUE, 0, |
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complain_overflow_bitfield, |
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NULL, "DISP16", |
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FALSE, 0xffff, 0xffff, TRUE), |
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HOWTO (BFD_RELOC_AARCH64_CALL26, 0, 2, 26, TRUE, 0, |
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complain_overflow_bitfield, |
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NULL, "BRANCH26", |
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FALSE, 0x03ffffff, 0x03ffffff, TRUE), |
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/* 8 */ |
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HOWTO (BFD_RELOC_AARCH64_ADR_HI21_PCREL, 12, 2, 21, TRUE, 0, |
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complain_overflow_signed, |
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NULL, "PAGE21", |
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FALSE, 0x1fffff, 0x1fffff, TRUE), |
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HOWTO (BFD_RELOC_AARCH64_LDST16_LO12, 1, 2, 12, TRUE, 0, |
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complain_overflow_signed, |
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NULL, "PGOFF12", |
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FALSE, 0xffe, 0xffe, TRUE), |
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HOWTO (BFD_RELOC_MACH_O_ARM64_ADDEND, 0, 2, 32, FALSE, 0, |
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complain_overflow_signed, |
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NULL, "ADDEND", |
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FALSE, 0xffffffff, 0xffffffff, FALSE), |
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HOWTO (BFD_RELOC_MACH_O_SUBTRACTOR32, 0, 2, 32, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "SUBTRACTOR32", |
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FALSE, 0xffffffff, 0xffffffff, FALSE), |
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/* 12 */ |
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HOWTO (BFD_RELOC_MACH_O_SUBTRACTOR64, 0, 4, 64, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "SUBTRACTOR64", |
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FALSE, MINUS_ONE, MINUS_ONE, FALSE), |
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HOWTO (BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGE21, 12, 2, 21, TRUE, 0, |
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complain_overflow_signed, |
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NULL, "GOT_LD_PG21", |
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FALSE, 0x1fffff, 0x1fffff, TRUE), |
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HOWTO (BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGEOFF12, 1, 2, 12, TRUE, 0, |
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complain_overflow_signed, |
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NULL, "GOT_LD_PGOFF12", |
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FALSE, 0xffe, 0xffe, TRUE), |
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HOWTO (BFD_RELOC_MACH_O_ARM64_POINTER_TO_GOT, 0, 2, 32, TRUE, 0, |
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complain_overflow_bitfield, |
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NULL, "PTR_TO_GOT", |
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FALSE, 0xffffffff, 0xffffffff, TRUE), |
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}; |
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static bfd_boolean |
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bfd_mach_o_arm64_canonicalize_one_reloc (bfd *abfd, |
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struct mach_o_reloc_info_external *raw, |
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arelent *res, asymbol **syms) |
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{ |
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bfd_mach_o_reloc_info reloc; |
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res->address = bfd_get_32 (abfd, raw->r_address); |
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if (res->address & BFD_MACH_O_SR_SCATTERED) |
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{ |
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/* Only non-scattered relocations. */ |
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return FALSE; |
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} |
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/* The value and info fields have to be extracted dependent on target
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endian-ness. */ |
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bfd_mach_o_swap_in_non_scattered_reloc (abfd, &reloc, raw->r_symbolnum); |
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if (reloc.r_type == BFD_MACH_O_ARM64_RELOC_ADDEND) |
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{ |
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if (reloc.r_length == 2 && reloc.r_pcrel == 0) |
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{ |
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res->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
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res->addend = reloc.r_value; |
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res->howto = &arm64_howto_table[10]; |
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return TRUE; |
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} |
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return FALSE; |
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} |
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if (!bfd_mach_o_canonicalize_non_scattered_reloc (abfd, &reloc, res, syms)) |
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return FALSE; |
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switch (reloc.r_type) |
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{ |
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case BFD_MACH_O_ARM64_RELOC_UNSIGNED: |
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switch ((reloc.r_length << 1) | reloc.r_pcrel) |
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{ |
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case 0: /* len = 0, pcrel = 0 */ |
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res->howto = &arm64_howto_table[3]; |
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return TRUE; |
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case 2: /* len = 1, pcrel = 0 */ |
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res->howto = &arm64_howto_table[2]; |
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return TRUE; |
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case 3: /* len = 1, pcrel = 1 */ |
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res->howto = &arm64_howto_table[6]; |
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return TRUE; |
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case 4: /* len = 2, pcrel = 0 */ |
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res->howto = &arm64_howto_table[1]; |
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return TRUE; |
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case 5: /* len = 2, pcrel = 1 */ |
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res->howto = &arm64_howto_table[5]; |
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return TRUE; |
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case 6: /* len = 3, pcrel = 0 */ |
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res->howto = &arm64_howto_table[0]; |
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return TRUE; |
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case 7: /* len = 3, pcrel = 1 */ |
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res->howto = &arm64_howto_table[4]; |
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return TRUE; |
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default: |
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return FALSE; |
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} |
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break; |
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case BFD_MACH_O_ARM64_RELOC_SUBTRACTOR: |
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if (reloc.r_pcrel) |
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return FALSE; |
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switch (reloc.r_length) |
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{ |
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case 2: |
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res->howto = &arm64_howto_table[11]; |
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return TRUE; |
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case 3: |
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res->howto = &arm64_howto_table[12]; |
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return TRUE; |
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default: |
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return FALSE; |
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} |
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break; |
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case BFD_MACH_O_ARM64_RELOC_BRANCH26: |
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if (reloc.r_length == 2 && reloc.r_pcrel == 1) |
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{ |
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res->howto = &arm64_howto_table[7]; |
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return TRUE; |
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} |
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break; |
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case BFD_MACH_O_ARM64_RELOC_PAGE21: |
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if (reloc.r_length == 2 && reloc.r_pcrel == 1) |
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{ |
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res->howto = &arm64_howto_table[8]; |
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return TRUE; |
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} |
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break; |
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case BFD_MACH_O_ARM64_RELOC_PAGEOFF12: |
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if (reloc.r_length == 2 && reloc.r_pcrel == 0) |
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{ |
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res->howto = &arm64_howto_table[9]; |
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return TRUE; |
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} |
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break; |
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case BFD_MACH_O_ARM64_RELOC_GOT_LOAD_PAGE21: |
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if (reloc.r_length == 2 && reloc.r_pcrel == 1) |
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{ |
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res->howto = &arm64_howto_table[13]; |
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return TRUE; |
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} |
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break; |
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case BFD_MACH_O_ARM64_RELOC_GOT_LOAD_PAGEOFF12: |
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if (reloc.r_length == 2 && reloc.r_pcrel == 0) |
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{ |
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res->howto = &arm64_howto_table[14]; |
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return TRUE; |
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} |
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break; |
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case BFD_MACH_O_ARM64_RELOC_POINTER_TO_GOT: |
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if (reloc.r_length == 2 && reloc.r_pcrel == 1) |
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{ |
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res->howto = &arm64_howto_table[15]; |
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return TRUE; |
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} |
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break; |
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default: |
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break; |
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} |
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return FALSE; |
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} |
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static reloc_howto_type * |
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bfd_mach_o_arm64_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
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bfd_reloc_code_real_type code) |
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{ |
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unsigned int i; |
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for (i = 0; |
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i < sizeof (arm64_howto_table) / sizeof (*arm64_howto_table); |
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i++) |
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if (code == arm64_howto_table[i].type) |
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return &arm64_howto_table[i]; |
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return NULL; |
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} |
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static reloc_howto_type * |
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bfd_mach_o_arm64_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
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const char *name ATTRIBUTE_UNUSED) |
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{ |
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return NULL; |
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} |
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#define TARGET_NAME aarch64_mach_o_vec |
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#define TARGET_STRING "mach-o-arm64" |
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#define TARGET_ARCHITECTURE bfd_arch_aarch64 |
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#define TARGET_PAGESIZE 4096 |
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#define TARGET_BIG_ENDIAN 0 |
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#define TARGET_ARCHIVE 0 |
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#define TARGET_PRIORITY 0 |
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#include "mach-o-target.c" |
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#undef TARGET_NAME |
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#undef TARGET_STRING |
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#undef TARGET_ARCHIVE |
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#undef TARGET_PRIORITY |
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@ -0,0 +1,326 @@ |
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/* ARM Mach-O support for BFD.
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Copyright (C) 2015 Free Software Foundation, Inc. |
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This file is part of BFD, the Binary File Descriptor library. |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 3 of the License, or |
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(at your option) any later version. |
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|
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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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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
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MA 02110-1301, USA. */ |
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|
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#include "sysdep.h" |
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#include "mach-o.h" |
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#include "bfd.h" |
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#include "libbfd.h" |
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#include "libiberty.h" |
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#include "mach-o/arm.h" |
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#define bfd_mach_o_object_p bfd_mach_o_arm_object_p |
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#define bfd_mach_o_core_p bfd_mach_o_arm_core_p |
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#define bfd_mach_o_mkobject bfd_mach_o_arm_mkobject |
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#define bfd_mach_o_canonicalize_one_reloc bfd_mach_o_arm_canonicalize_one_reloc |
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#define bfd_mach_o_swap_reloc_out NULL |
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#define bfd_mach_o_bfd_reloc_type_lookup bfd_mach_o_arm_bfd_reloc_type_lookup |
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#define bfd_mach_o_bfd_reloc_name_lookup bfd_mach_o_arm_bfd_reloc_name_lookup |
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#define bfd_mach_o_print_thread NULL |
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#define bfd_mach_o_tgt_seg_table NULL |
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#define bfd_mach_o_section_type_valid_for_tgt NULL |
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static const bfd_target * |
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bfd_mach_o_arm_object_p (bfd *abfd) |
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{ |
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return bfd_mach_o_header_p (abfd, 0, 0, BFD_MACH_O_CPU_TYPE_ARM); |
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} |
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static const bfd_target * |
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bfd_mach_o_arm_core_p (bfd *abfd) |
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{ |
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return bfd_mach_o_header_p (abfd, 0, |
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BFD_MACH_O_MH_CORE, BFD_MACH_O_CPU_TYPE_ARM); |
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} |
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static bfd_boolean |
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bfd_mach_o_arm_mkobject (bfd *abfd) |
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{ |
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bfd_mach_o_data_struct *mdata; |
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if (!bfd_mach_o_mkobject_init (abfd)) |
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return FALSE; |
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mdata = bfd_mach_o_get_data (abfd); |
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mdata->header.magic = BFD_MACH_O_MH_MAGIC; |
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mdata->header.cputype = BFD_MACH_O_CPU_TYPE_ARM; |
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mdata->header.cpusubtype = BFD_MACH_O_CPU_SUBTYPE_ARM_ALL; |
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mdata->header.byteorder = BFD_ENDIAN_LITTLE; |
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mdata->header.version = 1; |
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return TRUE; |
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} |
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static reloc_howto_type arm_howto_table[]= |
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{ |
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/* 0 */ |
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HOWTO (BFD_RELOC_32, 0, 2, 32, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "32", |
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FALSE, 0xffffffff, 0xffffffff, FALSE), |
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HOWTO (BFD_RELOC_16, 0, 1, 16, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "16", |
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FALSE, 0xffff, 0xffff, FALSE), |
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HOWTO (BFD_RELOC_8, 0, 0, 8, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "8", |
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FALSE, 0xff, 0xff, FALSE), |
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HOWTO (BFD_RELOC_32_PCREL, 0, 2, 32, TRUE, 0, |
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complain_overflow_bitfield, |
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NULL, "DISP32", |
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FALSE, 0xffffffff, 0xffffffff, TRUE), |
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/* 4 */ |
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HOWTO (BFD_RELOC_16_PCREL, 0, 1, 16, TRUE, 0, |
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complain_overflow_bitfield, |
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NULL, "DISP16", |
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FALSE, 0xffff, 0xffff, TRUE), |
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HOWTO (BFD_RELOC_MACH_O_SECTDIFF, 0, 2, 32, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "SECTDIFF_32", |
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FALSE, 0xffffffff, 0xffffffff, FALSE), |
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HOWTO (BFD_RELOC_MACH_O_LOCAL_SECTDIFF, 0, 2, 32, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "LSECTDIFF_32", |
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FALSE, 0xffffffff, 0xffffffff, FALSE), |
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HOWTO (BFD_RELOC_MACH_O_PAIR, 0, 2, 32, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "PAIR_32", |
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FALSE, 0xffffffff, 0xffffffff, FALSE), |
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/* 8 */ |
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HOWTO (BFD_RELOC_MACH_O_SECTDIFF, 0, 1, 16, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "SECTDIFF_16", |
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FALSE, 0xffff, 0xffff, FALSE), |
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HOWTO (BFD_RELOC_MACH_O_LOCAL_SECTDIFF, 0, 1, 16, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "LSECTDIFF_16", |
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FALSE, 0xffff, 0xffff, FALSE), |
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HOWTO (BFD_RELOC_MACH_O_PAIR, 0, 1, 16, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "PAIR_16", |
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FALSE, 0xffff, 0xffff, FALSE), |
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HOWTO (BFD_RELOC_ARM_PCREL_CALL, 2, 2, 24, TRUE, 0, |
|||
complain_overflow_signed, |
|||
NULL, "BR24", |
|||
FALSE, 0x00ffffff, 0x00ffffff, TRUE), |
|||
/* 12 */ |
|||
HOWTO (BFD_RELOC_ARM_MOVW, 0, 2, 16, FALSE, 0, |
|||
complain_overflow_dont, |
|||
NULL, "MOVW", |
|||
FALSE, 0x000f0fff, 0x000f0fff, FALSE), |
|||
HOWTO (BFD_RELOC_MACH_O_PAIR, 0, 2, 16, FALSE, 0, |
|||
complain_overflow_bitfield, |
|||
NULL, "PAIR_W", |
|||
FALSE, 0x000f0fff, 0x000f0fff, FALSE), |
|||
HOWTO (BFD_RELOC_ARM_MOVT, 0, 2, 16, FALSE, 0, |
|||
complain_overflow_bitfield, |
|||
NULL, "MOVT", |
|||
FALSE, 0x000f0fff, 0x000f0fff, FALSE), |
|||
HOWTO (BFD_RELOC_MACH_O_PAIR, 0, 2, 16, FALSE, 0, |
|||
complain_overflow_bitfield, |
|||
NULL, "PAIR_T", |
|||
FALSE, 0x000f0fff, 0x000f0fff, FALSE), |
|||
/* 16 */ |
|||
HOWTO (BFD_RELOC_THUMB_PCREL_BLX, 2, 2, 24, TRUE, 0, |
|||
complain_overflow_signed, |
|||
NULL, "TBR22", |
|||
FALSE, 0x07ff2fff, 0x07ff2fff, TRUE) |
|||
}; |
|||
|
|||
static bfd_boolean |
|||
bfd_mach_o_arm_canonicalize_one_reloc (bfd *abfd, |
|||
struct mach_o_reloc_info_external *raw, |
|||
arelent *res, asymbol **syms) |
|||
{ |
|||
bfd_mach_o_reloc_info reloc; |
|||
|
|||
if (!bfd_mach_o_pre_canonicalize_one_reloc (abfd, raw, &reloc, res, syms)) |
|||
return FALSE; |
|||
|
|||
if (reloc.r_scattered) |
|||
{ |
|||
switch (reloc.r_type) |
|||
{ |
|||
case BFD_MACH_O_ARM_RELOC_PAIR: |
|||
if (reloc.r_length == 2) |
|||
{ |
|||
res->howto = &arm_howto_table[7]; |
|||
res->address = res[-1].address; |
|||
return TRUE; |
|||
} |
|||
else if (reloc.r_length == 1) |
|||
{ |
|||
res->howto = &arm_howto_table[10]; |
|||
res->address = res[-1].address; |
|||
return TRUE; |
|||
} |
|||
return FALSE; |
|||
case BFD_MACH_O_ARM_RELOC_SECTDIFF: |
|||
if (reloc.r_length == 2) |
|||
{ |
|||
res->howto = &arm_howto_table[5]; |
|||
return TRUE; |
|||
} |
|||
else if (reloc.r_length == 1) |
|||
{ |
|||
res->howto = &arm_howto_table[8]; |
|||
return TRUE; |
|||
} |
|||
return FALSE; |
|||
case BFD_MACH_O_ARM_RELOC_LOCAL_SECTDIFF: |
|||
if (reloc.r_length == 2) |
|||
{ |
|||
res->howto = &arm_howto_table[6]; |
|||
return TRUE; |
|||
} |
|||
else if (reloc.r_length == 1) |
|||
{ |
|||
res->howto = &arm_howto_table[9]; |
|||
return TRUE; |
|||
} |
|||
return FALSE; |
|||
case BFD_MACH_O_ARM_RELOC_HALF_SECTDIFF: |
|||
switch (reloc.r_length) |
|||
{ |
|||
case 2: /* :lower16: for movw arm. */ |
|||
res->howto = &arm_howto_table[12]; |
|||
return TRUE; |
|||
case 3: /* :upper16: for movt arm. */ |
|||
res->howto = &arm_howto_table[14]; |
|||
return TRUE; |
|||
} |
|||
return FALSE; |
|||
default: |
|||
return FALSE; |
|||
} |
|||
} |
|||
else |
|||
{ |
|||
switch (reloc.r_type) |
|||
{ |
|||
case BFD_MACH_O_ARM_RELOC_VANILLA: |
|||
switch ((reloc.r_length << 1) | reloc.r_pcrel) |
|||
{ |
|||
case 0: /* len = 0, pcrel = 0 */ |
|||
res->howto = &arm_howto_table[2]; |
|||
return TRUE; |
|||
case 2: /* len = 1, pcrel = 0 */ |
|||
res->howto = &arm_howto_table[1]; |
|||
return TRUE; |
|||
case 3: /* len = 1, pcrel = 1 */ |
|||
res->howto = &arm_howto_table[4]; |
|||
return TRUE; |
|||
case 4: /* len = 2, pcrel = 0 */ |
|||
res->howto = &arm_howto_table[0]; |
|||
return TRUE; |
|||
case 5: /* len = 2, pcrel = 1 */ |
|||
res->howto = &arm_howto_table[3]; |
|||
return TRUE; |
|||
default: |
|||
return FALSE; |
|||
} |
|||
break; |
|||
case BFD_MACH_O_ARM_RELOC_BR24: |
|||
if (reloc.r_length == 2 && reloc.r_pcrel == 1) |
|||
{ |
|||
res->howto = &arm_howto_table[11]; |
|||
return TRUE; |
|||
} |
|||
else |
|||
return FALSE; |
|||
break; |
|||
case BFD_MACH_O_THUMB_RELOC_BR22: |
|||
if (reloc.r_length == 2 && reloc.r_pcrel == 1) |
|||
{ |
|||
res->howto = &arm_howto_table[16]; |
|||
return TRUE; |
|||
} |
|||
else |
|||
return FALSE; |
|||
break; |
|||
case BFD_MACH_O_ARM_RELOC_HALF: |
|||
if (reloc.r_pcrel == 0) |
|||
switch (reloc.r_length) |
|||
{ |
|||
case 0: /* :lower16: for movw arm. */ |
|||
res->howto = &arm_howto_table[12]; |
|||
return TRUE; |
|||
case 1: /* :upper16: for movt arm. */ |
|||
res->howto = &arm_howto_table[14]; |
|||
return TRUE; |
|||
} |
|||
return FALSE; |
|||
case BFD_MACH_O_ARM_RELOC_PAIR: |
|||
if (res[-1].howto == &arm_howto_table[12] |
|||
&& reloc.r_length == 0) |
|||
{ |
|||
/* Pair for :lower16: of movw arm. */ |
|||
res->howto = &arm_howto_table[13]; |
|||
/* This reloc contains the other half in its r_address field. */ |
|||
res[-1].addend += (res->address & 0xffff) << 16; |
|||
res->address = res[-1].address; |
|||
return TRUE; |
|||
} |
|||
else if (res[-1].howto == &arm_howto_table[14] |
|||
&& reloc.r_length == 1) |
|||
{ |
|||
/* Pair for :upper16: of movt arm. */ |
|||
res->howto = &arm_howto_table[15]; |
|||
/* This reloc contains the other half in its r_address field. */ |
|||
res[-1].addend += res->address & 0xffff; |
|||
res->address = res[-1].address; |
|||
return TRUE; |
|||
} |
|||
return FALSE; |
|||
default: |
|||
return FALSE; |
|||
} |
|||
} |
|||
} |
|||
|
|||
static reloc_howto_type * |
|||
bfd_mach_o_arm_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
|||
bfd_reloc_code_real_type code) |
|||
{ |
|||
unsigned int i; |
|||
|
|||
for (i = 0; i < sizeof (arm_howto_table) / sizeof (*arm_howto_table); i++) |
|||
if (code == arm_howto_table[i].type) |
|||
return &arm_howto_table[i]; |
|||
return NULL; |
|||
} |
|||
|
|||
static reloc_howto_type * |
|||
bfd_mach_o_arm_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
|||
const char *name ATTRIBUTE_UNUSED) |
|||
{ |
|||
return NULL; |
|||
} |
|||
|
|||
#define TARGET_NAME arm_mach_o_vec |
|||
#define TARGET_STRING "mach-o-arm" |
|||
#define TARGET_ARCHITECTURE bfd_arch_arm |
|||
#define TARGET_PAGESIZE 4096 |
|||
#define TARGET_BIG_ENDIAN 0 |
|||
#define TARGET_ARCHIVE 0 |
|||
#define TARGET_PRIORITY 0 |
|||
#include "mach-o-target.c" |
|||
Loading…
Reference in new issue