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elfcpp/ * sparc.h (R_SPARC_JMP_IREL): New relocation. gold/ * sparc.cc (class Target_sparc): Add rela_ifunc_. (Target_sparc::Target_sparc): Initialize new field. (Target_sparc::do_plt_section_for_global): New function. (Target_sparc::do_plt_section_for_local): New function. (Target_sparc::reloc_needs_plt_for_ifunc): New function. (Target_sparc::make_plt_section): New function, broken out of make_plt_entry. Use ORDER_NON_RELRO_FIRST for ".plt". (Target_sparc::make_plt_entry): Call make_plt_section. (Target_sparc::make_local_ifunc_plt_entry): New function. (Target_sparc::rela_ifunc_section): New function. (Target_sparc::plt_section): Remove const. (Output_data_plt_sparc): Update declarations. Define Global_ifunc and Local_ifunc types. Add global_ifuncs_, local_ifuncs_, ifunc_rel_, and ifunc_count_ fields. (Output_data_plt_sparc::Output_data_plt_sparc): Initialize new fields. (Output_data_plt_sparc::add_entry): Handle IFUNC symbols. (Output_data_plt_sparc::add_local_ifunc_entry): New function. (Output_data_plt_sparc::rela_ifunc): New function. (Output_data_plt_sparc::emit_pending_ifunc_relocs): New function. (Output_data_plt_sparc::has_ifunc_section): New function. (Output_data_plt_sparc::entry_count): Include ifunc_count_. (Output_data_plt_sparc::address_for_global): New function. (Output_data_plt_sparc::address_for_local): New function. (Output_data_plt_sparc::plt_index_to_offset): New function. (Output_data_plt_sparc::set_final_data_size): Use plt_index_to_offset and entry_count. (Output_data_plt_sparc::do_write): Use first_plt_entry_offset and entry_count. (Target_sparc::Scan::get_reference_flags): Add R_SPARC_IRELATIVE and R_SPARC_JMP_IREL to switch. (Target_sparc::Scan::check_non_pic): Likewise. (Target_sparc::Scan::local): Handle IFUNC symbols. (Target_sparc::Scan::local): Likewise. (Target_sparc::Relocate::relocate): Likewise, use plt_address_for_global and plt_address_for_local. (Target_sparc::do_finalize_sections): Call emit_pending_ifunc_relocs. Define __rel_iplt_start and __rel_iplt_end if doing a static link.
174 lines
8.0 KiB
C++
174 lines
8.0 KiB
C++
// sparc.h -- ELF definitions specific to EM_SPARC -*- C++ -*-
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// Copyright 2008, 2010 Free Software Foundation, Inc.
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// Written by David S. Miller <davem@davemloft.net>.
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// This file is part of elfcpp.
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public License
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// as published by the Free Software Foundation; either version 2, or
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// (at your option) any later version.
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// In addition to the permissions in the GNU Library General Public
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// License, the Free Software Foundation gives you unlimited
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// permission to link the compiled version of this file into
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// combinations with other programs, and to distribute those
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// combinations without any restriction coming from the use of this
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// file. (The Library Public License restrictions do apply in other
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// respects; for example, they cover modification of the file, and
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/// distribution when not linked into a combined executable.)
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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// You should have received a copy of the GNU Library General Public
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// License along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
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// 02110-1301, USA.
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#ifndef ELFCPP_SPARC_H
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#define ELFCPP_SPARC_H
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// Documentation for the TLS relocs is taken from
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// http://people.redhat.com/drepper/tls.pdf
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//
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// More full documentation on sparc specific ELF file
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// format details can be found at
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//
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// http://docs.sun.com/app/docs/doc/819/0690/
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// "Linker and Libraries Guide"
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//
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// specifically Chapter 7 "Object File Format" and
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// Chapter 8 "Thread-Local Storage"
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namespace elfcpp
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{
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enum
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{
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R_SPARC_NONE = 0, // No reloc
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R_SPARC_8 = 1, // Direct 8 bit
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R_SPARC_16 = 2, // Direct 16 bit
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R_SPARC_32 = 3, // Direct 32 bit
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R_SPARC_DISP8 = 4, // PC relative 8 bit
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R_SPARC_DISP16 = 5, // PC relative 16 bit
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R_SPARC_DISP32 = 6, // PC relative 32 bit
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R_SPARC_WDISP30 = 7, // PC relative 30 bit shifted
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R_SPARC_WDISP22 = 8, // PC relative 22 bit shifted
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R_SPARC_HI22 = 9, // High 22 bit
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R_SPARC_22 = 10, // Direct 22 bit
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R_SPARC_13 = 11, // Direct 13 bit
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R_SPARC_LO10 = 12, // Truncated 10 bit
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R_SPARC_GOT10 = 13, // Truncated 10 bit GOT entry
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R_SPARC_GOT13 = 14, // 13 bit GOT entry
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R_SPARC_GOT22 = 15, // 22 bit GOT entry shifted
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R_SPARC_PC10 = 16, // PC relative 10 bit truncated
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R_SPARC_PC22 = 17, // PC relative 22 bit shifted
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R_SPARC_WPLT30 = 18, // 30 bit PC relative PLT address
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R_SPARC_COPY = 19, // Copy symbol at runtime
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R_SPARC_GLOB_DAT = 20, // Create GOT entry
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R_SPARC_JMP_SLOT = 21, // Create PLT entry
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R_SPARC_RELATIVE = 22, // Adjust by program base
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R_SPARC_UA32 = 23, // Direct 32 bit unaligned
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R_SPARC_PLT32 = 24, // Direct 32 bit ref to PLT entry
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R_SPARC_HIPLT22 = 25, // High 22 bit PLT entry
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R_SPARC_LOPLT10 = 26, // Truncated 10 bit PLT entry
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R_SPARC_PCPLT32 = 27, // PC rel 32 bit ref to PLT entry
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R_SPARC_PCPLT22 = 28, // PC rel high 22 bit PLT entry
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R_SPARC_PCPLT10 = 29, // PC rel trunc 10 bit PLT entry
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R_SPARC_10 = 30, // Direct 10 bit
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R_SPARC_11 = 31, // Direct 11 bit
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R_SPARC_64 = 32, // Direct 64 bit
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R_SPARC_OLO10 = 33, // 10bit with secondary 13bit addend
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R_SPARC_HH22 = 34, // Top 22 bits of direct 64 bit
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R_SPARC_HM10 = 35, // High middle 10 bits of ...
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R_SPARC_LM22 = 36, // Low middle 22 bits of ...
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R_SPARC_PC_HH22 = 37, // Top 22 bits of pc rel 64 bit
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R_SPARC_PC_HM10 = 38, // High middle 10 bit of ...
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R_SPARC_PC_LM22 = 39, // Low miggle 22 bits of ...
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R_SPARC_WDISP16 = 40, // PC relative 16 bit shifted
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R_SPARC_WDISP19 = 41, // PC relative 19 bit shifted
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R_SPARC_GLOB_JMP = 42, // was part of v9 ABI but was removed
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R_SPARC_7 = 43, // Direct 7 bit
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R_SPARC_5 = 44, // Direct 5 bit
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R_SPARC_6 = 45, // Direct 6 bit
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R_SPARC_DISP64 = 46, // PC relative 64 bit
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R_SPARC_PLT64 = 47, // Direct 64 bit ref to PLT entry
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R_SPARC_HIX22 = 48, // High 22 bit complemented
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R_SPARC_LOX10 = 49, // Truncated 11 bit complemented
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R_SPARC_H44 = 50, // Direct high 12 of 44 bit
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R_SPARC_M44 = 51, // Direct mid 22 of 44 bit
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R_SPARC_L44 = 52, // Direct low 10 of 44 bit
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R_SPARC_REGISTER = 53, // Global register usage
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R_SPARC_UA64 = 54, // Direct 64 bit unaligned
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R_SPARC_UA16 = 55, // Direct 16 bit unaligned
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R_SPARC_TLS_GD_HI22 = 56, // Initial General Dynamic reloc, high 22-bit
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R_SPARC_TLS_GD_LO10 = 57, // Initial General Dynamic reloc, low 10-bit
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R_SPARC_TLS_GD_ADD = 58, // Initial General Dynamic reloc, add
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R_SPARC_TLS_GD_CALL = 59, // Initial General Dynamic reloc, call
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R_SPARC_TLS_LDM_HI22 = 60, // Initial Local Dynamic reloc, high 22-bit
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R_SPARC_TLS_LDM_LO10 = 61, // Initial Local Dynamic reloc, low 10-bit
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R_SPARC_TLS_LDM_ADD = 62, // Initial Local Dynamic reloc, add
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R_SPARC_TLS_LDM_CALL = 63, // Initial Local Dynamic reloc, call
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R_SPARC_TLS_LDO_HIX22 = 64, // Initial Local Dynamic, high extended 22-bit
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R_SPARC_TLS_LDO_LOX10 = 65, // Initial Local Dynamic, low extended 10-bit
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R_SPARC_TLS_LDO_ADD = 66, // Initial Local Dynamic, add extended
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R_SPARC_TLS_IE_HI22 = 67, // Initial Initial Exec reloc, high 22-bit
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R_SPARC_TLS_IE_LO10 = 68, // Initial Initial Exec reloc, low 10-bit
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R_SPARC_TLS_IE_LD = 69, // Initial Initial Exec reloc, load 32-bit
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R_SPARC_TLS_IE_LDX = 70, // Initial Initial Exec reloc, load 64-bit
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R_SPARC_TLS_IE_ADD = 71, // Initial Initial Exec reloc, add
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R_SPARC_TLS_LE_HIX22 = 72, // Initial Local Exec reloc, high extended 22-bit
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R_SPARC_TLS_LE_LOX10 = 73, // Initial Local Exec reloc, low extended 10-bit
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R_SPARC_TLS_DTPMOD32 = 74, // Outstanding General/Local Dynamic reloc, 32-bit
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R_SPARC_TLS_DTPMOD64 = 75, // Outstanding General/Local Dynamic reloc, 64-bit
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R_SPARC_TLS_DTPOFF32 = 76, // Outstanding General Dynamic reloc, 32-bit
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R_SPARC_TLS_DTPOFF64 = 77, // Outstanding General Dynamic reloc, 64-bit
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R_SPARC_TLS_TPOFF32 = 78, // Outstanding Initial Exec reloc, 32-bit
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R_SPARC_TLS_TPOFF64 = 79, // Outstanding Initial Exec reloc, 64-bit
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// GOT data code transformations
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R_SPARC_GOTDATA_HIX22 = 80,
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R_SPARC_GOTDATA_LOX10 = 81,
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R_SPARC_GOTDATA_OP_HIX22 = 82,
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R_SPARC_GOTDATA_OP_LOX10 = 83,
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R_SPARC_GOTDATA_OP = 84,
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R_SPARC_H34 = 85, // Direct high 12 of 34 bit
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R_SPARC_SIZE32 = 86, // size of symbol, 32-bit
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R_SPARC_SIZE64 = 87, // size of symbol, 64-bit
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R_SPARC_WDISP10 = 88, // PC relative 10 bit shifted
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R_SPARC_JMP_IREL = 248, // Create PLT slot to IFUNC function
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R_SPARC_IRELATIVE = 249, // Adjust indirectly by program base
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// GNU vtable garbage collection extensions.
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R_SPARC_GNU_VTINHERIT = 250,
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R_SPARC_GNU_VTENTRY = 251,
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R_SPARC_REV32 = 252,
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};
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// e_flags values defined for sparc
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enum
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{
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EF_SPARC_EXT_MASK = 0xffff00, // reserved for vendor extensions
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EF_SPARC_32PLUS_MASK = 0xffff00, // bits indicating V8+ type
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EF_SPARC_32PLUS = 0x000100, // generic V8+ features
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EF_SPARC_SUN_US1 = 0x000200, // Sun UltraSPARC-I extensions
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EF_SPARC_HAL_R1 = 0x000400, // HAL R1 extensions
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EF_SPARC_SUN_US3 = 0x000800, // Sun UltraSPARC-III extensions
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EF_SPARC_LEDATA = 0x800000, // little endian data
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EF_SPARCV9_MM = 0x3, // memory model mask
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EF_SPARCV9_TSO = 0x0, // total store ordering
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EF_SPARCV9_PSO = 0x1, // partial store ordering
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EF_SPARCV9_RMO = 0x2, // relaxed store ordering
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};
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} // End namespace elfcpp.
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#endif // !defined(ELFCPP_SPARC_H)
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