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34e967a5f3
bfd/ChangeLog: * arc-plt.def: New file. * arc-plt.h: Likewise. * elf32-arc.c (elf_arc_abs_plt0_entry, elf_arc_abs_pltn_entry, elf_arcV2_abs_plt0_entry, elf_arcV2_abs_pltn_entry, elf_arc_pic_plt0_entry, elf_arc_pic_pltn_entry, elf_arcV2_pic_plt0_entry, elf_arcV2_pic_pltn_entry): Remove. (name_for_global_symbol): Added. (ADD_RELA): Helper to create dynamic relocs. (new_got_entry_to_list): Create a new got entry in linked list. (symbol_has_entry_of_type): Search for specific type of entry in list. (is_reloc_for_GOT): return FALSE for any TLS related relocs. (is_reloc_for_TLS, arc_elf_set_private_flags) (arc_elf_print_private_bfd_data, arc_elf_copy_private_bfd_data) (arc_elf_merge_private_bfd_data): New functions. (debug_arc_reloc): Cleaned debug info printing. (PDATA reloc): Changed not to perform address alignment. (reverse_me): Added. Fix for ARC_32 relocs. (arc_do_relocation): Return bfd_reloc_of when no relocation should occur. (arc_get_local_got_ents): Renamed from arc_get_local_got_offsets. Changed function to access an array of list of GOT entries instead of just an array of offsets. (elf_arc_relocate_section): Added support for PIC and TLS related relocations. (elf_arc_check_relocs): Likewise. (elf_arc_adjust_dynamic_symbol, elf_arc_finish_dynamic_symbol, (elf_arc_finish_dynamic_sections): Likewise (arc_create_dynamic_sections): Modified conditions to create dynamic sections. (ADD_SYMBOL_REF_SEC_AND_RELOC): New macro. (plt_do_relocs_for_symbol, relocate_plt_for_symbol) (relocate_plt_for_entry): Changed to support new way to define PLT related code. (add_symbol_to_plt): Likewise. (arc_elf_link_hash_table_create): New function. include/ChangeLog: * elf/arc-reloc.def (ARC_32, ARC_GOTPC, ARC_TLS_GD_GOT) (ARC_TLS_IE_GOT, ARC_TLS_DTPOFF, ARC_TLS_DTPOFF_S9, ARC_TLS_LE_S9) (ARC_TLS_LE_32): Fixed formula. (ARC_TLS_GD_LD): Use new special function. * opcode/arc-func.h: Changed all the replacement functions to clear the patching bits before doing an or it with the value argument.
197 lines
4.6 KiB
C
197 lines
4.6 KiB
C
/* ARC-specific header file for PLT support.
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Copyright (C) 2016 Free Software Foundation, Inc.
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Contributed by Cupertino Miranda (cmiranda@synopsys.com).
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#ifndef ARC_PLT_H
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#define ARC_PLT_H
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#include <stdint.h>
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/* Instructions appear in memory as a sequence of half-words (16 bit);
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individual half-words are represented on the target in target byte order.
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We use 'unsigned short' on the host to represent the PLT templates,
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and translate to target byte order as we copy to the target. */
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typedef uint16_t insn_hword;
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enum plt_reloc_symbol
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{
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LAST_RELOC = 0,
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SGOT = 1,
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RELATIVE = (1 << 8),
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RELATIVE_INSN_32 = (1 << 9),
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RELATIVE_INSN_24 = (1 << 10),
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MIDDLE_ENDIAN = (1 << 11)
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};
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#define IS_RELATIVE(S) ((S & (RELATIVE | RELATIVE_INSN_24 | RELATIVE_INSN_32)) != 0)
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#define IS_INSN_32(S) ((S & RELATIVE_INSN_32) != 0)
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#define IS_INSN_24(S) ((S & RELATIVE_INSN_24) != 0)
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#define IS_MIDDLE_ENDIAN(S) ((S & MIDDLE_ENDIAN) != 0)
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#define SYM_ONLY(S) (S & 0xFF)
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struct plt_reloc
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{
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bfd_vma offset;
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bfd_vma size;
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bfd_vma mask;
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enum plt_reloc_symbol symbol;
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bfd_vma addend;
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};
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#define PLT_TYPE_START(NAME) NAME,
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#define PLT_TYPE_END(NAME)
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#define PLT_ENTRY(...)
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#define PLT_ELEM(...)
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#define ENTRY_RELOC(...)
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#define ELEM_RELOC(...)
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enum plt_types_enum
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{
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PLT_START = -1,
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#include "arc-plt.def"
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PLT_MAX
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};
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#undef PLT_TYPE_START
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#undef PLT_TYPE_END
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#undef PLT_ENTRY
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#undef PLT_ELEM
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#undef ENTRY_RELOC
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#undef ELEM_RELOC
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typedef insn_hword insn_hword_array[];
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struct plt_version_t
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{
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const insn_hword_array *entry;
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const bfd_vma entry_size;
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const insn_hword_array *elem;
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const bfd_vma elem_size;
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const struct plt_reloc *entry_relocs;
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const struct plt_reloc *elem_relocs;
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};
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#define PLT_TYPE_START(NAME) \
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const insn_hword NAME##_plt_entry[] = {
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#define PLT_TYPE_END(NAME) };
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#define PLT_ENTRY(...) __VA_ARGS__,
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#define PLT_ELEM(...)
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#define ENTRY_RELOC(...)
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#define ELEM_RELOC(...)
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#include "arc-plt.def"
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#undef PLT_TYPE_START
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#undef PLT_TYPE_END
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#undef PLT_ENTRY
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#undef PLT_ELEM
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#undef ENTRY_RELOC
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#undef ELEM_RELOC
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#define PLT_TYPE_START(NAME) \
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const struct plt_reloc NAME##_plt_entry_relocs[] = {
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#define PLT_TYPE_END(NAME) \
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{0, 0, 0, LAST_RELOC, 0} \
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};
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#define PLT_ENTRY(...)
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#define PLT_ELEM(...)
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#define ENTRY_RELOC(...) { __VA_ARGS__ },
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#define ELEM_RELOC(...)
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#include "arc-plt.def"
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#undef PLT_TYPE_START
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#undef PLT_TYPE_END
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#undef PLT_ENTRY
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#undef PLT_ELEM
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#undef ENTRY_RELOC
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#undef ELEM_RELOC
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#define PLT_TYPE_START(NAME) \
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const insn_hword NAME##_plt_elem[] = {
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#define PLT_TYPE_END(NAME) };
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#define PLT_ENTRY(...)
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#define PLT_ELEM(...) __VA_ARGS__,
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#define ENTRY_RELOC(...)
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#define ELEM_RELOC(...)
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#include "arc-plt.def"
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#undef PLT_TYPE_START
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#undef PLT_TYPE_END
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#undef PLT_ENTRY
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#undef PLT_ELEM
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#undef ENTRY_RELOC
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#undef ELEM_RELOC
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#define PLT_TYPE_START(NAME) \
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const struct plt_reloc NAME##_plt_elem_relocs[] = {
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#define PLT_TYPE_END(NAME) \
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{0, 0, 0, LAST_RELOC, 0} \
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};
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#define PLT_ENTRY(...)
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#define PLT_ELEM(...)
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#define ENTRY_RELOC(...)
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#define ELEM_RELOC(...) { __VA_ARGS__ },
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#include "arc-plt.def"
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#undef PLT_TYPE_START
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#undef PLT_TYPE_END
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#undef PLT_ENTRY
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#undef PLT_ELEM
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#undef ENTRY_RELOC
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#undef ELEM_RELOC
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#define PLT_TYPE_START(NAME) \
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{ \
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.entry = &NAME##_plt_entry, \
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.entry_size = sizeof (NAME##_plt_entry), \
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.elem = &NAME##_plt_elem, \
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.elem_size = sizeof (NAME##_plt_elem), \
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.entry_relocs = NAME##_plt_entry_relocs, \
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.elem_relocs = NAME##_plt_elem_relocs
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#define PLT_TYPE_END(NAME) },
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#define PLT_ENTRY(...)
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#define PLT_ELEM(...)
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#define ENTRY_RELOC(...)
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#define ELEM_RELOC(...)
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struct plt_version_t plt_versions[PLT_MAX] = {
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#include "arc-plt.def"
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};
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#undef PLT_TYPE_START
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#undef PLT_TYPE_END
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#undef PLT_ENTRY
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#undef PLT_ELEM
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#undef ENTRY_RELOC
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#undef ELEM_RELOC
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#endif /* ARC_PLT_H */
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