From 9363c7c3ad54a5f92d74ec8e48eda570de229f63 Mon Sep 17 00:00:00 2001 From: Jing Yu Date: Fri, 8 Aug 2014 14:18:35 -0700 Subject: gold aarch64 patch to enable linking hello_wolrd. elfcpp/ChangeLog: 2014-08-08 Han Shen * aarch64.h (withdrawn): Replaced with R_AARCH64_withdrawn. 2014-08-08 Jing Yu Han Shen * Makefile.am (HFILES): Add aarch64-reloc-property.h. (DEFFILES): add aarch64-reloc.def. (TARGETSOURCES): Add aarch64-reloc-property.cc. (ALL_TARGETOBJS): Add aarch64-reloc-property.$(OBJEXT). * Makefile.in: Regenerate. * aarch64-reloc-property.cc: New file. * aarch64-reloc-property.h: New file. * aarch64-reloc.def: New file. * aarch64.cc: Include aarch64-reloc-property.h. Replace spaces with tab to make the format consistent. (Output_data_got_aarch64::symbol_table_): New method. (Target_aarch64::do_plt_address_for_global): New method. (Target_aarch64::do_plt_address_for_local): New method. (Target_aarch64::do_select_as_default_target): New method. (Target_aarch64::do_make_data_plt): New method. (Target_aarch64::make_data_plt): New method. (Output_data_plt_aarch64::has_irelative_section): New method. (Output_data_plt_aarch64::address_for_global): New method. (Output_data_plt_aarch64::address_for_local): New method. (Output_data_plt_aarch64::irelative_rel_): New parameter. (Output_data_plt_aarch64::add_entry): Implement contents. (Output_data_plt_aarch64::set_final_data_size): Fix typo. (Output_data_plt_aarch64::do_write): Remove useless got_base. Set the got_pov entry to plt0. (Output_data_plt_aarch64_standard::do_fill_first_plt_entry): Implement contents. (Output_data_plt_aarch64_standard::do_fill_plt_entry): Implement. (AArch64_howto): New struct. (aarch64_howto[]): New static const array. (AArch64_relocate_functions): New class. (Target_aarch64::Scan::get_reference_flags): Remove method. (Target_aarch64::Scan::local): Implement to support a few relocations. (Target_aarch64::Scan::global): Implement to support a few relocations. (Target_aarch64::make_plt_section): Implement contents. (Target_aarch64::make_plt_entry): Implement contents. (Target_aarch64::do_finalize_sections): Implement contents. (Target_aarch64::Relocate::relocate): Implement a few relocations. (Target_aarch64::relocate_section): Implement contents. --- gold/aarch64-reloc.def | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 gold/aarch64-reloc.def (limited to 'gold/aarch64-reloc.def') diff --git a/gold/aarch64-reloc.def b/gold/aarch64-reloc.def new file mode 100644 index 0000000..4f6710e --- /dev/null +++ b/gold/aarch64-reloc.def @@ -0,0 +1,70 @@ +// aarch64-reloc.def -- AArch64 relocation definitions. + +// Copyright (C) 2014 Free Software Foundation, Inc. +// Written by Han Shen and Jing Yu . + +// This file is part of gold. + +// 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 3 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., 51 Franklin Street - Fifth Floor, Boston, +// MA 02110-1301, USA. +// +// +// +// Insn modified by relocation, see enum Reloc_inst -------------------------------------------------------------------------+ +// Symbol reference type -----------------------------------------------------------------------------+ | +// Portion off X to retrieve -------------------------------------------------------------------+ | | +// Checking function, see Note(A)---------------------------------------+ | | | +// Group index---------------------------------------------------+ | | | | +// Implemented----------------------------------------------+ | | | | | +// Class-------------------------------------+ | | | | | | +// Type----------------------------+ | | | | | | | +// Name | | | | | | | | +// | | | | | | | | | +ARD(ABS64 , STATIC , DATA , Y, -1, 0,0 , 0,0 , Symbol::ABSOLUTE_REF , DATA ) +ARD(ABS32 , STATIC , DATA , Y, -1, 31,32 , 0,0 , Symbol::ABSOLUTE_REF , DATA ) +ARD(ABS16 , STATIC , DATA , Y, -1, 15,16 , 0,0 , Symbol::ABSOLUTE_REF , DATA ) +ARD(PREL64 , STATIC , DATA , Y, -1, 0,0 , 0,0 , Symbol::RELATIVE_REF , DATA ) +ARD(PREL32 , STATIC , DATA , Y, -1, 31,32 , 0,0 , Symbol::RELATIVE_REF , DATA ) +ARD(PREL16 , STATIC , DATA , Y, -1, 15,16 , 0,0 , Symbol::RELATIVE_REF , DATA ) +// Above is from Table 4-6, Data relocations, 257-262. + +ARD(ADR_PREL_PG_HI21 , STATIC , AARCH64 , Y, -1, 32,32 , 12,32 , Symbol::RELATIVE_REF , ADRP ) +ARD(ADR_PREL_PG_HI21_NC , STATIC , AARCH64 , Y, -1, 0,0 , 12,32 , Symbol::RELATIVE_REF , ADRP ) +ARD(LDST8_ABS_LO12_NC , STATIC , AARCH64 , Y, -1, 0,0 , 0,11 , Symbol::ABSOLUTE_REF , LDST ) +ARD(LDST16_ABS_LO12_NC , STATIC , AARCH64 , Y, -1, 0,RL_CHECK_ALIGN2 , 1,11 , Symbol::ABSOLUTE_REF , LDST ) +ARD(LDST32_ABS_LO12_NC , STATIC , AARCH64 , Y, -1, 0,RL_CHECK_ALIGN4 , 2,11 , Symbol::ABSOLUTE_REF , LDST ) +ARD(LDST64_ABS_LO12_NC , STATIC , AARCH64 , Y, -1, 0,RL_CHECK_ALIGN8 , 3,11 , Symbol::ABSOLUTE_REF , LDST ) +ARD(LDST128_ABS_LO12_NC , STATIC , AARCH64 , Y, -1, 0,RL_CHECK_ALIGN16 , 4,11 , Symbol::ABSOLUTE_REF , LDST ) +ARD(ADD_ABS_LO12_NC , STATIC , AARCH64 , Y, -1, 0,0 , 0,11 , Symbol::ABSOLUTE_REF , ADD ) +ARD(ADR_GOT_PAGE , STATIC , AARCH64 , Y, -1, 32,32 , 12,32 , Symbol::RELATIVE_REF , ADRP ) +ARD(LD64_GOT_LO12_NC , STATIC , AARCH64 , Y, -1, 0,RL_CHECK_ALIGN8 , 3,11 , Symbol::ABSOLUTE_REF , LDST ) +ARD(TSTBR14 , STATIC , CFLOW , N, -1, 15,15 , 2,15 , Symbol::ABSOLUTE_REF , TBZNZ ) +ARD(CONDBR19 , STATIC , CFLOW , N, -1, 20,20 , 2,20 , Symbol::ABSOLUTE_REF , CONDB ) +ARD(CALL26 , STATIC , CFLOW , Y, -1, 27,27 , 2,27 , (Symbol::FUNCTION_CALL|Symbol::RELATIVE_REF) , CALL ) +ARD(JUMP26 , STATIC , CFLOW , Y, -1, 27,27 , 2,27 , (Symbol::FUNCTION_CALL|Symbol::RELATIVE_REF) , B ) +// Above is from Table 4-10, Relocations for control-flow instructions, +// 279-283. + +ARD(TLSIE_MOVW_GOTTPREL_G1 , STATIC , AARCH64 , N, -1, 0,0 , 16,31 , Symbol::ABSOLUTE_REF , MOVW ) +ARD(TLSIE_MOVW_GOTTPREL_G0_NC , STATIC , AARCH64 , N, -1, 0,0 , 0,15 , Symbol::ABSOLUTE_REF , MOVW ) +ARD(TLSIE_ADR_GOTTPREL_PAGE21 , STATIC , AARCH64 , Y, -1, 32,32 , 12,32 , Symbol::ABSOLUTE_REF , ADRP ) +ARD(TLSIE_LD64_GOTTPREL_LO12_NC , STATIC , AARCH64 , N, -1, 32,32 , 12,32 , Symbol::ABSOLUTE_REF , LDST ) +ARD(TLSIE_LD_GOTTPREL_PREL19 , STATIC , AARCH64 , N, -1, 20,20 , 2,20 , Symbol::ABSOLUTE_REF , LD ) +// Above is from Table 4-17, Initial Exec TLS relocations, 539-543. + +// Note - +// A - Checking X, (L,U), if L == 0 && U == 0, no check. Otherwise, L!=0, +// check that -2^L<=X<2^U. Also an extra alignment check could be embeded +// into U. -- cgit v1.1