X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Felf64-sparc.c;h=d25b429337a5a36daa6872db61a44cfae665b7c8;hb=d80dcc6af40cf05ba30497778ca0c3c510f18861;hp=6b809347e1de446def5625f80625b2129d0d9a1c;hpb=3869b11f87ee327aec785a148fc4e88f63b08c0d;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/elf64-sparc.c b/bfd/elf64-sparc.c index 6b809347e1..d25b429337 100644 --- a/bfd/elf64-sparc.c +++ b/bfd/elf64-sparc.c @@ -1,123 +1,226 @@ /* SPARC-specific support for 64-bit ELF - Copyright (C) 1993, 1995, 1996, 1997 Free Software Foundation, Inc. + Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, + 2003 Free Software Foundation, Inc. -This file is part of BFD, the Binary File Descriptor library. + 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 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. + 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. */ - -/* We need a published ABI spec for this. Until one comes out, don't - assume this'll remain unchanged forever. */ + 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 "opcode/sparc.h" + +/* This is defined if one wants to build upward compatible binaries + with the original sparc64-elf toolchain. The support is kept in for + now but is turned off by default. dje 970930 */ +/*#define SPARC64_OLD_RELOCS*/ -#define SPARC64_OLD_RELOCS #include "elf/sparc.h" +/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */ +#define MINUS_ONE (~ (bfd_vma) 0) + +static struct bfd_link_hash_table * sparc64_elf_bfd_link_hash_table_create + PARAMS ((bfd *)); +static bfd_reloc_status_type init_insn_reloc + PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, + bfd *, bfd_vma *, bfd_vma *)); static reloc_howto_type *sparc64_elf_reloc_type_lookup PARAMS ((bfd *, bfd_reloc_code_real_type)); static void sparc64_elf_info_to_howto PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); -static boolean sparc64_elf_relocate_section +static void sparc64_elf_build_plt + PARAMS ((bfd *, unsigned char *, int)); +static bfd_vma sparc64_elf_plt_entry_offset + PARAMS ((bfd_vma)); +static bfd_vma sparc64_elf_plt_ptr_offset + PARAMS ((bfd_vma, bfd_vma)); + +static bfd_boolean sparc64_elf_check_relocs + PARAMS ((bfd *, struct bfd_link_info *, asection *sec, + const Elf_Internal_Rela *)); +static bfd_boolean sparc64_elf_adjust_dynamic_symbol + PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); +static bfd_boolean sparc64_elf_size_dynamic_sections + PARAMS ((bfd *, struct bfd_link_info *)); +static int sparc64_elf_get_symbol_type + PARAMS (( Elf_Internal_Sym *, int)); +static bfd_boolean sparc64_elf_add_symbol_hook + PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, + const char **, flagword *, asection **, bfd_vma *)); +static bfd_boolean sparc64_elf_output_arch_syms + PARAMS ((bfd *, struct bfd_link_info *, PTR, + bfd_boolean (*) (PTR, const char *, Elf_Internal_Sym *, asection *))); +static void sparc64_elf_symbol_processing + PARAMS ((bfd *, asymbol *)); + +static bfd_boolean sparc64_elf_merge_private_bfd_data + PARAMS ((bfd *, bfd *)); + +static bfd_boolean sparc64_elf_fake_sections + PARAMS ((bfd *, Elf_Internal_Shdr *, asection *)); + +static const char *sparc64_elf_print_symbol_all + PARAMS ((bfd *, PTR, asymbol *)); +static bfd_boolean sparc64_elf_new_section_hook + PARAMS ((bfd *, asection *)); +static bfd_boolean sparc64_elf_relax_section + PARAMS ((bfd *, asection *, struct bfd_link_info *, bfd_boolean *)); +static bfd_boolean sparc64_elf_relocate_section PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); -static boolean sparc64_elf_object_p PARAMS ((bfd *)); - -/* The howto table and associated functions. - ??? Some of the relocation values have changed. Until we're ready - to upgrade, we have our own copy. At some point a non upward compatible - change will be made at which point this table can be deleted and we'll - use the one in elf32-sparc.c. */ +static bfd_boolean sparc64_elf_finish_dynamic_symbol + PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, + Elf_Internal_Sym *)); +static bfd_boolean sparc64_elf_finish_dynamic_sections + PARAMS ((bfd *, struct bfd_link_info *)); +static bfd_boolean sparc64_elf_object_p PARAMS ((bfd *)); +static long sparc64_elf_get_reloc_upper_bound PARAMS ((bfd *, asection *)); +static long sparc64_elf_get_dynamic_reloc_upper_bound PARAMS ((bfd *)); +static bfd_boolean sparc64_elf_slurp_one_reloc_table + PARAMS ((bfd *, asection *, Elf_Internal_Shdr *, asymbol **, bfd_boolean)); +static bfd_boolean sparc64_elf_slurp_reloc_table + PARAMS ((bfd *, asection *, asymbol **, bfd_boolean)); +static long sparc64_elf_canonicalize_reloc + PARAMS ((bfd *, asection *, arelent **, asymbol **)); +static long sparc64_elf_canonicalize_dynamic_reloc + PARAMS ((bfd *, arelent **, asymbol **)); +static void sparc64_elf_write_relocs PARAMS ((bfd *, asection *, PTR)); +static enum elf_reloc_type_class sparc64_elf_reloc_type_class + PARAMS ((const Elf_Internal_Rela *)); + +/* The relocation "howto" table. */ +static bfd_reloc_status_type sparc_elf_notsup_reloc + PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); static bfd_reloc_status_type sparc_elf_wdisp16_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); +static bfd_reloc_status_type sparc_elf_hix22_reloc + PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); +static bfd_reloc_status_type sparc_elf_lox10_reloc + PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); -static reloc_howto_type sparc64_elf_howto_table[] = -{ - HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true), - HOWTO(R_SPARC_8, 0,0, 8,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", false,0,0x000000ff,true), - HOWTO(R_SPARC_16, 0,1,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", false,0,0x0000ffff,true), - HOWTO(R_SPARC_32, 0,2,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", false,0,0xffffffff,true), - HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", false,0,0x000000ff,true), - HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", false,0,0x0000ffff,true), - HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", false,0,0x00ffffff,true), - HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", false,0,0x3fffffff,true), - HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", false,0,0x003fffff,true), - HOWTO(R_SPARC_HI22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", false,0,0x003fffff,true), - HOWTO(R_SPARC_22, 0,2,22,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", false,0,0x003fffff,true), - HOWTO(R_SPARC_13, 0,2,13,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", false,0,0x00001fff,true), - HOWTO(R_SPARC_LO10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", false,0,0x000003ff,true), - HOWTO(R_SPARC_GOT10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", false,0,0x000003ff,true), - HOWTO(R_SPARC_GOT13, 0,2,13,false,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", false,0,0x00001fff,true), - HOWTO(R_SPARC_GOT22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", false,0,0x003fffff,true), - HOWTO(R_SPARC_PC10, 0,2,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", false,0,0x000003ff,true), - HOWTO(R_SPARC_PC22, 10,2,22,true, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", false,0,0x003fffff,true), - HOWTO(R_SPARC_WPLT30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", false,0,0x3fffffff,true), - HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", false,0,0x00000000,true), - HOWTO(R_SPARC_GLOB_DAT, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",false,0,0x00000000,true), - HOWTO(R_SPARC_JMP_SLOT, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",false,0,0x00000000,true), - HOWTO(R_SPARC_RELATIVE, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",false,0,0x00000000,true), - HOWTO(R_SPARC_UA32, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UA32", false,0,0x00000000,true), -#if 0 /* not used yet */ - HOWTO(R_SPARC_PLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PLT32", false,0,0x00000000,true), - HOWTO(R_SPARC_HIPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HIPLT22", false,0,0x00000000,true), - HOWTO(R_SPARC_LOPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_LOPLT10", false,0,0x00000000,true), - HOWTO(R_SPARC_PCPLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT32", false,0,0x00000000,true), - HOWTO(R_SPARC_PCPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT22", false,0,0x00000000,true), - HOWTO(R_SPARC_PCPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT10", false,0,0x00000000,true), +static reloc_howto_type sparc64_elf_howto_table[] = +{ + HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE), + HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE), + HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE), + HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE), + HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE), + HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE), + HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE), + HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE), + HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE), + HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE), + HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE), + HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE), + HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE), + HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE), + HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE), + HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE), + HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE), + HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE), + HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_GLOB_DAT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_JMP_SLOT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE), +#ifndef SPARC64_OLD_RELOCS + HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE), + /* These aren't implemented yet. */ + HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE), #endif - HOWTO(R_SPARC_10, 0,2,10,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", false,0,0x000003ff,true), - HOWTO(R_SPARC_11, 0,2,11,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", false,0,0x000007ff,true), - HOWTO(R_SPARC_64, 0,4,00,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", false,0,~ (bfd_vma) 0, true), - HOWTO(R_SPARC_OLO10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_OLO10", false,0,0x000003ff,true), - HOWTO(R_SPARC_HH22, 42,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HH22", false,0,0x003fffff,true), - HOWTO(R_SPARC_HM10, 32,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", false,0,0x000003ff,true), - HOWTO(R_SPARC_LM22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", false,0,0x003fffff,true), - HOWTO(R_SPARC_PC_HH22, 42,2,22,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HH22", false,0,0x003fffff,true), - HOWTO(R_SPARC_PC_HM10, 32,2,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", false,0,0x000003ff,true), - HOWTO(R_SPARC_PC_LM22, 10,2,22,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", false,0,0x003fffff,true), - HOWTO(R_SPARC_WDISP16, 2,2,16,true, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", false,0,0x00000000,true), - HOWTO(R_SPARC_WDISP19, 2,2,22,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", false,0,0x0007ffff,true), - HOWTO(R_SPARC_UNUSED_42, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",false,0,0x00000000,true), - HOWTO(R_SPARC_7, 0,2, 7,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", false,0,0x0000007f,true), - HOWTO(R_SPARC_5, 0,2, 5,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", false,0,0x0000001f,true), - HOWTO(R_SPARC_6, 0,2, 6,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", false,0,0x0000003f,true), + HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE), + HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE), + HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE), + HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE), + HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE), + HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE), + HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE), + HOWTO(R_SPARC_PC_HH22, 42,2,22,TRUE, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", FALSE,0,0x003fffff,TRUE), + HOWTO(R_SPARC_PC_HM10, 32,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", FALSE,0,0x000003ff,TRUE), + HOWTO(R_SPARC_PC_LM22, 10,2,22,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", FALSE,0,0x003fffff,TRUE), + HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE), + HOWTO(R_SPARC_UNUSED_42, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE), + HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE), + HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE), + HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE), + HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE), + HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE), + HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE), + HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE), + HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE), + HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE), + HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE), + HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE), + HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE), + HOWTO(R_SPARC_TLS_GD_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",FALSE,0,0x003fffff,TRUE), + HOWTO(R_SPARC_TLS_GD_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",FALSE,0,0x000003ff,TRUE), + HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_TLS_GD_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",FALSE,0,0x3fffffff,TRUE), + HOWTO(R_SPARC_TLS_LDM_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",FALSE,0,0x003fffff,TRUE), + HOWTO(R_SPARC_TLS_LDM_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",FALSE,0,0x000003ff,TRUE), + HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_TLS_LDM_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",FALSE,0,0x3fffffff,TRUE), + HOWTO(R_SPARC_TLS_LDO_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",FALSE,0,0x003fffff, FALSE), + HOWTO(R_SPARC_TLS_LDO_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",FALSE,0,0x000003ff, FALSE), + HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_TLS_IE_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",FALSE,0,0x003fffff,TRUE), + HOWTO(R_SPARC_TLS_IE_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",FALSE,0,0x000003ff,TRUE), + HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_TLS_LE_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",FALSE,0,0x003fffff, FALSE), + HOWTO(R_SPARC_TLS_LE_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",FALSE,0,0x000003ff, FALSE), + HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_TLS_DTPOFF32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",FALSE,0,0xffffffff,TRUE), + HOWTO(R_SPARC_TLS_DTPOFF64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",FALSE,0,MINUS_ONE,TRUE), + HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",FALSE,0,0x00000000,TRUE), + HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",FALSE,0,0x00000000,TRUE) }; struct elf_reloc_map { - unsigned char bfd_reloc_val; + bfd_reloc_code_real_type bfd_reloc_val; unsigned char elf_reloc_val; }; -static CONST struct elf_reloc_map sparc_reloc_map[] = +static const struct elf_reloc_map sparc_reloc_map[] = { { BFD_RELOC_NONE, R_SPARC_NONE, }, { BFD_RELOC_16, R_SPARC_16, }, + { BFD_RELOC_16_PCREL, R_SPARC_DISP16 }, { BFD_RELOC_8, R_SPARC_8 }, { BFD_RELOC_8_PCREL, R_SPARC_DISP8 }, - /* ??? This might cause us to need separate functions in elf{32,64}-sparc.c - (we could still have just one table), but is this reloc ever used? */ - { BFD_RELOC_CTOR, R_SPARC_32 }, /* @@ Assumes 32 bits. */ + { BFD_RELOC_CTOR, R_SPARC_64 }, { BFD_RELOC_32, R_SPARC_32 }, { BFD_RELOC_32_PCREL, R_SPARC_DISP32 }, { BFD_RELOC_HI22, R_SPARC_HI22 }, { BFD_RELOC_LO10, R_SPARC_LO10, }, { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 }, + { BFD_RELOC_64_PCREL, R_SPARC_DISP64 }, { BFD_RELOC_SPARC22, R_SPARC_22 }, { BFD_RELOC_SPARC13, R_SPARC_13 }, { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 }, @@ -131,28 +234,64 @@ static CONST struct elf_reloc_map sparc_reloc_map[] = { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT }, { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE }, { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 }, - /* ??? Doesn't dwarf use this? */ -/*{ BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */ - {BFD_RELOC_SPARC_10, R_SPARC_10}, - {BFD_RELOC_SPARC_11, R_SPARC_11}, - {BFD_RELOC_SPARC_64, R_SPARC_64}, - {BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10}, - {BFD_RELOC_SPARC_HH22, R_SPARC_HH22}, - {BFD_RELOC_SPARC_HM10, R_SPARC_HM10}, - {BFD_RELOC_SPARC_LM22, R_SPARC_LM22}, - {BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22}, - {BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10}, - {BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22}, - {BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16}, - {BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19}, - {BFD_RELOC_SPARC_7, R_SPARC_7}, - {BFD_RELOC_SPARC_5, R_SPARC_5}, - {BFD_RELOC_SPARC_6, R_SPARC_6}, + { BFD_RELOC_SPARC_UA16, R_SPARC_UA16 }, + { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, + { BFD_RELOC_SPARC_UA64, R_SPARC_UA64 }, + { BFD_RELOC_SPARC_10, R_SPARC_10 }, + { BFD_RELOC_SPARC_11, R_SPARC_11 }, + { BFD_RELOC_SPARC_64, R_SPARC_64 }, + { BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10 }, + { BFD_RELOC_SPARC_HH22, R_SPARC_HH22 }, + { BFD_RELOC_SPARC_HM10, R_SPARC_HM10 }, + { BFD_RELOC_SPARC_LM22, R_SPARC_LM22 }, + { BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22 }, + { BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10 }, + { BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22 }, + { BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16 }, + { BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19 }, + { BFD_RELOC_SPARC_7, R_SPARC_7 }, + { BFD_RELOC_SPARC_5, R_SPARC_5 }, + { BFD_RELOC_SPARC_6, R_SPARC_6 }, + { BFD_RELOC_SPARC_DISP64, R_SPARC_DISP64 }, + { BFD_RELOC_SPARC_TLS_GD_HI22, R_SPARC_TLS_GD_HI22 }, + { BFD_RELOC_SPARC_TLS_GD_LO10, R_SPARC_TLS_GD_LO10 }, + { BFD_RELOC_SPARC_TLS_GD_ADD, R_SPARC_TLS_GD_ADD }, + { BFD_RELOC_SPARC_TLS_GD_CALL, R_SPARC_TLS_GD_CALL }, + { BFD_RELOC_SPARC_TLS_LDM_HI22, R_SPARC_TLS_LDM_HI22 }, + { BFD_RELOC_SPARC_TLS_LDM_LO10, R_SPARC_TLS_LDM_LO10 }, + { BFD_RELOC_SPARC_TLS_LDM_ADD, R_SPARC_TLS_LDM_ADD }, + { BFD_RELOC_SPARC_TLS_LDM_CALL, R_SPARC_TLS_LDM_CALL }, + { BFD_RELOC_SPARC_TLS_LDO_HIX22, R_SPARC_TLS_LDO_HIX22 }, + { BFD_RELOC_SPARC_TLS_LDO_LOX10, R_SPARC_TLS_LDO_LOX10 }, + { BFD_RELOC_SPARC_TLS_LDO_ADD, R_SPARC_TLS_LDO_ADD }, + { BFD_RELOC_SPARC_TLS_IE_HI22, R_SPARC_TLS_IE_HI22 }, + { BFD_RELOC_SPARC_TLS_IE_LO10, R_SPARC_TLS_IE_LO10 }, + { BFD_RELOC_SPARC_TLS_IE_LD, R_SPARC_TLS_IE_LD }, + { BFD_RELOC_SPARC_TLS_IE_LDX, R_SPARC_TLS_IE_LDX }, + { BFD_RELOC_SPARC_TLS_IE_ADD, R_SPARC_TLS_IE_ADD }, + { BFD_RELOC_SPARC_TLS_LE_HIX22, R_SPARC_TLS_LE_HIX22 }, + { BFD_RELOC_SPARC_TLS_LE_LOX10, R_SPARC_TLS_LE_LOX10 }, + { BFD_RELOC_SPARC_TLS_DTPMOD32, R_SPARC_TLS_DTPMOD32 }, + { BFD_RELOC_SPARC_TLS_DTPMOD64, R_SPARC_TLS_DTPMOD64 }, + { BFD_RELOC_SPARC_TLS_DTPOFF32, R_SPARC_TLS_DTPOFF32 }, + { BFD_RELOC_SPARC_TLS_DTPOFF64, R_SPARC_TLS_DTPOFF64 }, + { BFD_RELOC_SPARC_TLS_TPOFF32, R_SPARC_TLS_TPOFF32 }, + { BFD_RELOC_SPARC_TLS_TPOFF64, R_SPARC_TLS_TPOFF64 }, +#ifndef SPARC64_OLD_RELOCS + { BFD_RELOC_SPARC_PLT32, R_SPARC_PLT32 }, +#endif + { BFD_RELOC_SPARC_PLT64, R_SPARC_PLT64 }, + { BFD_RELOC_SPARC_HIX22, R_SPARC_HIX22 }, + { BFD_RELOC_SPARC_LOX10, R_SPARC_LOX10 }, + { BFD_RELOC_SPARC_H44, R_SPARC_H44 }, + { BFD_RELOC_SPARC_M44, R_SPARC_M44 }, + { BFD_RELOC_SPARC_L44, R_SPARC_L44 }, + { BFD_RELOC_SPARC_REGISTER, R_SPARC_REGISTER } }; static reloc_howto_type * sparc64_elf_reloc_type_lookup (abfd, code) - bfd *abfd; + bfd *abfd ATTRIBUTE_UNUSED; bfd_reloc_code_real_type code; { unsigned int i; @@ -166,252 +305,2965 @@ sparc64_elf_reloc_type_lookup (abfd, code) static void sparc64_elf_info_to_howto (abfd, cache_ptr, dst) - bfd *abfd; + bfd *abfd ATTRIBUTE_UNUSED; arelent *cache_ptr; - Elf64_Internal_Rela *dst; + Elf_Internal_Rela *dst; { - BFD_ASSERT (ELF64_R_TYPE (dst->r_info) < (unsigned int) R_SPARC_max); - cache_ptr->howto = &sparc64_elf_howto_table[ELF64_R_TYPE (dst->r_info)]; + BFD_ASSERT (ELF64_R_TYPE_ID (dst->r_info) < (unsigned int) R_SPARC_max_std); + cache_ptr->howto = &sparc64_elf_howto_table[ELF64_R_TYPE_ID (dst->r_info)]; } -/* Handle the WDISP16 reloc. */ +struct sparc64_elf_section_data +{ + struct bfd_elf_section_data elf; + unsigned int do_relax, reloc_count; +}; -static bfd_reloc_status_type -sparc_elf_wdisp16_reloc (abfd, - reloc_entry, - symbol, - data, - input_section, - output_bfd, - error_message) +#define sec_do_relax(sec) \ + ((struct sparc64_elf_section_data *) elf_section_data (sec))->do_relax +#define canon_reloc_count(sec) \ + ((struct sparc64_elf_section_data *) elf_section_data (sec))->reloc_count + +/* Due to the way how we handle R_SPARC_OLO10, each entry in a SHT_RELA + section can represent up to two relocs, we must tell the user to allocate + more space. */ + +static long +sparc64_elf_get_reloc_upper_bound (abfd, sec) + bfd *abfd ATTRIBUTE_UNUSED; + asection *sec; +{ + return (sec->reloc_count * 2 + 1) * sizeof (arelent *); +} + +static long +sparc64_elf_get_dynamic_reloc_upper_bound (abfd) bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; { - bfd_vma relocation; - bfd_vma x; + return _bfd_elf_get_dynamic_reloc_upper_bound (abfd) * 2; +} - if (output_bfd != (bfd *) NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && (! reloc_entry->howto->partial_inplace - || reloc_entry->addend == 0)) +/* Read relocations for ASECT from REL_HDR. There are RELOC_COUNT of + them. We cannot use generic elf routines for this, because R_SPARC_OLO10 + has secondary addend in ELF64_R_TYPE_DATA. We handle it as two relocations + for the same location, R_SPARC_LO10 and R_SPARC_13. */ + +static bfd_boolean +sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr, symbols, dynamic) + bfd *abfd; + asection *asect; + Elf_Internal_Shdr *rel_hdr; + asymbol **symbols; + bfd_boolean dynamic; +{ + PTR allocated = NULL; + bfd_byte *native_relocs; + arelent *relent; + unsigned int i; + int entsize; + bfd_size_type count; + arelent *relents; + + allocated = (PTR) bfd_malloc (rel_hdr->sh_size); + if (allocated == NULL) + goto error_return; + + if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0 + || bfd_bread (allocated, rel_hdr->sh_size, abfd) != rel_hdr->sh_size) + goto error_return; + + native_relocs = (bfd_byte *) allocated; + + relents = asect->relocation + canon_reloc_count (asect); + + entsize = rel_hdr->sh_entsize; + BFD_ASSERT (entsize == sizeof (Elf64_External_Rela)); + + count = rel_hdr->sh_size / entsize; + + for (i = 0, relent = relents; i < count; + i++, relent++, native_relocs += entsize) { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; + Elf_Internal_Rela rela; + + bfd_elf64_swap_reloca_in (abfd, native_relocs, &rela); + + /* The address of an ELF reloc is section relative for an object + file, and absolute for an executable file or shared library. + The address of a normal BFD reloc is always section relative, + and the address of a dynamic reloc is absolute.. */ + if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 || dynamic) + relent->address = rela.r_offset; + else + relent->address = rela.r_offset - asect->vma; + + if (ELF64_R_SYM (rela.r_info) == 0) + relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; + else + { + asymbol **ps, *s; + + ps = symbols + ELF64_R_SYM (rela.r_info) - 1; + s = *ps; + + /* Canonicalize ELF section symbols. FIXME: Why? */ + if ((s->flags & BSF_SECTION_SYM) == 0) + relent->sym_ptr_ptr = ps; + else + relent->sym_ptr_ptr = s->section->symbol_ptr_ptr; + } + + relent->addend = rela.r_addend; + + BFD_ASSERT (ELF64_R_TYPE_ID (rela.r_info) < (unsigned int) R_SPARC_max_std); + if (ELF64_R_TYPE_ID (rela.r_info) == R_SPARC_OLO10) + { + relent->howto = &sparc64_elf_howto_table[R_SPARC_LO10]; + relent[1].address = relent->address; + relent++; + relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; + relent->addend = ELF64_R_TYPE_DATA (rela.r_info); + relent->howto = &sparc64_elf_howto_table[R_SPARC_13]; + } + else + relent->howto = &sparc64_elf_howto_table[ELF64_R_TYPE_ID (rela.r_info)]; } - if (output_bfd != NULL) - return bfd_reloc_continue; + canon_reloc_count (asect) += relent - relents; - if (reloc_entry->address > input_section->_cooked_size) - return bfd_reloc_outofrange; + if (allocated != NULL) + free (allocated); - relocation = (symbol->value - + symbol->section->output_section->vma - + symbol->section->output_offset); - relocation += reloc_entry->addend; - relocation -= (input_section->output_section->vma - + input_section->output_offset); - relocation -= reloc_entry->address; + return TRUE; + + error_return: + if (allocated != NULL) + free (allocated); + return FALSE; +} - x = bfd_get_32 (abfd, (char *) data + reloc_entry->address); - x |= ((((relocation >> 2) & 0xc000) << 6) - | ((relocation >> 2) & 0x3fff)); - bfd_put_32 (abfd, x, (char *) data + reloc_entry->address); +/* Read in and swap the external relocs. */ - if ((bfd_signed_vma) relocation < - 0x40000 - || (bfd_signed_vma) relocation > 0x3ffff) - return bfd_reloc_overflow; +static bfd_boolean +sparc64_elf_slurp_reloc_table (abfd, asect, symbols, dynamic) + bfd *abfd; + asection *asect; + asymbol **symbols; + bfd_boolean dynamic; +{ + struct bfd_elf_section_data * const d = elf_section_data (asect); + Elf_Internal_Shdr *rel_hdr; + Elf_Internal_Shdr *rel_hdr2; + bfd_size_type amt; + + if (asect->relocation != NULL) + return TRUE; + + if (! dynamic) + { + if ((asect->flags & SEC_RELOC) == 0 + || asect->reloc_count == 0) + return TRUE; + + rel_hdr = &d->rel_hdr; + rel_hdr2 = d->rel_hdr2; + + BFD_ASSERT (asect->rel_filepos == rel_hdr->sh_offset + || (rel_hdr2 && asect->rel_filepos == rel_hdr2->sh_offset)); + } else - return bfd_reloc_ok; + { + /* Note that ASECT->RELOC_COUNT tends not to be accurate in this + case because relocations against this section may use the + dynamic symbol table, and in that case bfd_section_from_shdr + in elf.c does not update the RELOC_COUNT. */ + if (asect->_raw_size == 0) + return TRUE; + + rel_hdr = &d->this_hdr; + asect->reloc_count = NUM_SHDR_ENTRIES (rel_hdr); + rel_hdr2 = NULL; + } + + amt = asect->reloc_count; + amt *= 2 * sizeof (arelent); + asect->relocation = (arelent *) bfd_alloc (abfd, amt); + if (asect->relocation == NULL) + return FALSE; + + /* The sparc64_elf_slurp_one_reloc_table routine increments + canon_reloc_count. */ + canon_reloc_count (asect) = 0; + + if (!sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr, symbols, + dynamic)) + return FALSE; + + if (rel_hdr2 + && !sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr2, symbols, + dynamic)) + return FALSE; + + return TRUE; } - -/* Relocate a SPARC64 ELF section. */ -static boolean -sparc64_elf_relocate_section (output_bfd, info, input_bfd, input_section, - contents, relocs, local_syms, local_sections) - bfd *output_bfd; - 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; +/* Canonicalize the relocs. */ + +static long +sparc64_elf_canonicalize_reloc (abfd, section, relptr, symbols) + bfd *abfd; + sec_ptr section; + arelent **relptr; + asymbol **symbols; { - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - Elf_Internal_Rela *rel; - Elf_Internal_Rela *relend; + arelent *tblptr; + unsigned int i; + struct elf_backend_data *bed = get_elf_backend_data (abfd); - symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (input_bfd); + if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) + return -1; - rel = relocs; - relend = relocs + input_section->reloc_count; - for (; rel < relend; rel++) + tblptr = section->relocation; + for (i = 0; i < canon_reloc_count (section); i++) + *relptr++ = tblptr++; + + *relptr = NULL; + + return canon_reloc_count (section); +} + + +/* Canonicalize the dynamic relocation entries. Note that we return + the dynamic relocations as a single block, although they are + actually associated with particular sections; the interface, which + was designed for SunOS style shared libraries, expects that there + is only one set of dynamic relocs. Any section that was actually + installed in the BFD, and has type SHT_REL or SHT_RELA, and uses + the dynamic symbol table, is considered to be a dynamic reloc + section. */ + +static long +sparc64_elf_canonicalize_dynamic_reloc (abfd, storage, syms) + bfd *abfd; + arelent **storage; + asymbol **syms; +{ + asection *s; + long ret; + + if (elf_dynsymtab (abfd) == 0) { - int r_type; - reloc_howto_type *howto; - long r_symndx; - struct elf_link_hash_entry *h; - Elf_Internal_Sym *sym; - asection *sec; - bfd_vma relocation; - bfd_reloc_status_type r; + bfd_set_error (bfd_error_invalid_operation); + return -1; + } - r_type = ELF64_R_TYPE (rel->r_info); - if (r_type < 0 || r_type >= (int) R_SPARC_max) + ret = 0; + for (s = abfd->sections; s != NULL; s = s->next) + { + if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) + && (elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) { - bfd_set_error (bfd_error_bad_value); - return false; + arelent *p; + long count, i; + + if (! sparc64_elf_slurp_reloc_table (abfd, s, syms, TRUE)) + return -1; + count = canon_reloc_count (s); + p = s->relocation; + for (i = 0; i < count; i++) + *storage++ = p++; + ret += count; } - howto = sparc64_elf_howto_table + r_type; + } - r_symndx = ELF64_R_SYM (rel->r_info); + *storage = NULL; - if (info->relocateable) - { - /* This is a relocateable link. We don't have to change - anything, unless the reloc is against a section symbol, - in which case we have to adjust according to where the - section symbol winds up in the output section. */ - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) - { - sec = local_sections[r_symndx]; - rel->r_addend += sec->output_offset + sym->st_value; - } - } + return ret; +} - continue; - } +/* Write out the relocs. */ - /* This is a final link. */ - h = NULL; - sym = NULL; - sec = NULL; - if (r_symndx < symtab_hdr->sh_info) +static void +sparc64_elf_write_relocs (abfd, sec, data) + bfd *abfd; + asection *sec; + PTR data; +{ + bfd_boolean *failedp = (bfd_boolean *) data; + Elf_Internal_Shdr *rela_hdr; + Elf64_External_Rela *outbound_relocas, *src_rela; + unsigned int idx, count; + asymbol *last_sym = 0; + int last_sym_idx = 0; + + /* If we have already failed, don't do anything. */ + if (*failedp) + return; + + if ((sec->flags & SEC_RELOC) == 0) + return; + + /* The linker backend writes the relocs out itself, and sets the + reloc_count field to zero to inhibit writing them here. Also, + sometimes the SEC_RELOC flag gets set even when there aren't any + relocs. */ + if (sec->reloc_count == 0) + return; + + /* We can combine two relocs that refer to the same address + into R_SPARC_OLO10 if first one is R_SPARC_LO10 and the + latter is R_SPARC_13 with no associated symbol. */ + count = 0; + for (idx = 0; idx < sec->reloc_count; idx++) + { + bfd_vma addr; + + ++count; + + addr = sec->orelocation[idx]->address; + if (sec->orelocation[idx]->howto->type == R_SPARC_LO10 + && idx < sec->reloc_count - 1) { - sym = local_syms + r_symndx; - sec = local_sections[r_symndx]; - relocation = (sec->output_section->vma - + sec->output_offset - + sym->st_value); + arelent *r = sec->orelocation[idx + 1]; + + if (r->howto->type == R_SPARC_13 + && r->address == addr + && bfd_is_abs_section ((*r->sym_ptr_ptr)->section) + && (*r->sym_ptr_ptr)->value == 0) + ++idx; } + } + + rela_hdr = &elf_section_data (sec)->rel_hdr; + + rela_hdr->sh_size = rela_hdr->sh_entsize * count; + rela_hdr->contents = (PTR) bfd_alloc (abfd, rela_hdr->sh_size); + if (rela_hdr->contents == NULL) + { + *failedp = TRUE; + return; + } + + /* Figure out whether the relocations are RELA or REL relocations. */ + if (rela_hdr->sh_type != SHT_RELA) + abort (); + + /* orelocation has the data, reloc_count has the count... */ + outbound_relocas = (Elf64_External_Rela *) rela_hdr->contents; + src_rela = outbound_relocas; + + for (idx = 0; idx < sec->reloc_count; idx++) + { + Elf_Internal_Rela dst_rela; + arelent *ptr; + asymbol *sym; + int n; + + ptr = sec->orelocation[idx]; + + /* The address of an ELF reloc is section relative for an object + file, and absolute for an executable file or shared library. + The address of a BFD reloc is always section relative. */ + if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) + dst_rela.r_offset = ptr->address; + else + dst_rela.r_offset = ptr->address + sec->vma; + + sym = *ptr->sym_ptr_ptr; + if (sym == last_sym) + n = last_sym_idx; + else if (bfd_is_abs_section (sym->section) && sym->value == 0) + n = STN_UNDEF; 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; - if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) + last_sym = sym; + n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym); + if (n < 0) { - 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))) - return false; - relocation = 0; + *failedp = TRUE; + return; } + last_sym_idx = n; } - if (r_type != R_SPARC_WDISP16) - r = _bfd_final_link_relocate (howto, input_bfd, input_section, - contents, rel->r_offset, - relocation, rel->r_addend); - else + if ((*ptr->sym_ptr_ptr)->the_bfd != NULL + && (*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec + && ! _bfd_elf_validate_reloc (abfd, ptr)) { - bfd_vma x; - - relocation += rel->r_addend; - relocation -= (input_section->output_section->vma - + input_section->output_offset); - relocation -= rel->r_offset; - - x = bfd_get_32 (input_bfd, contents + rel->r_offset); - x |= ((((relocation >> 2) & 0xc000) << 6) - | ((relocation >> 2) & 0x3fff)); - bfd_put_32 (input_bfd, x, contents + rel->r_offset); - - if ((bfd_signed_vma) relocation < - 0x40000 - || (bfd_signed_vma) relocation > 0x3ffff) - r = bfd_reloc_overflow; - else - r = bfd_reloc_ok; + *failedp = TRUE; + return; } - if (r != bfd_reloc_ok) + if (ptr->howto->type == R_SPARC_LO10 + && idx < sec->reloc_count - 1) { - switch (r) - { - default: - case bfd_reloc_outofrange: - abort (); - case bfd_reloc_overflow: - { - const char *name; + arelent *r = sec->orelocation[idx + 1]; - if (h != NULL) - name = h->root.root.string; - else - { - name = (bfd_elf_string_from_elf_section - (input_bfd, - symtab_hdr->sh_link, - sym->st_name)); - if (name == NULL) - return false; - if (*name == '\0') - name = bfd_section_name (input_bfd, sec); - } - if (! ((*info->callbacks->reloc_overflow) - (info, name, howto->name, (bfd_vma) 0, - input_bfd, input_section, rel->r_offset))) - return false; - } - break; + if (r->howto->type == R_SPARC_13 + && r->address == ptr->address + && bfd_is_abs_section ((*r->sym_ptr_ptr)->section) + && (*r->sym_ptr_ptr)->value == 0) + { + idx++; + dst_rela.r_info + = ELF64_R_INFO (n, ELF64_R_TYPE_INFO (r->addend, + R_SPARC_OLO10)); } + else + dst_rela.r_info = ELF64_R_INFO (n, R_SPARC_LO10); } - } + else + dst_rela.r_info = ELF64_R_INFO (n, ptr->howto->type); - return true; + dst_rela.r_addend = ptr->addend; + bfd_elf64_swap_reloca_out (abfd, &dst_rela, (bfd_byte *) src_rela); + ++src_rela; + } } + +/* Sparc64 ELF linker hash table. */ -/* Set the right machine number for a SPARC64 ELF file. */ +struct sparc64_elf_app_reg +{ + unsigned char bind; + unsigned short shndx; + bfd *abfd; + char *name; +}; -static boolean -sparc64_elf_object_p (abfd) +struct sparc64_elf_link_hash_table +{ + struct elf_link_hash_table root; + + struct sparc64_elf_app_reg app_regs [4]; +}; + +/* Get the Sparc64 ELF linker hash table from a link_info structure. */ + +#define sparc64_elf_hash_table(p) \ + ((struct sparc64_elf_link_hash_table *) ((p)->hash)) + +/* Create a Sparc64 ELF linker hash table. */ + +static struct bfd_link_hash_table * +sparc64_elf_bfd_link_hash_table_create (abfd) bfd *abfd; { - return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc_v9); + struct sparc64_elf_link_hash_table *ret; + bfd_size_type amt = sizeof (struct sparc64_elf_link_hash_table); + + ret = (struct sparc64_elf_link_hash_table *) bfd_zmalloc (amt); + if (ret == (struct sparc64_elf_link_hash_table *) NULL) + return NULL; + + if (! _bfd_elf_link_hash_table_init (&ret->root, abfd, + _bfd_elf_link_hash_newfunc)) + { + free (ret); + return NULL; + } + + return &ret->root.root; } + +/* Utility for performing the standard initial work of an instruction + relocation. + *PRELOCATION will contain the relocated item. + *PINSN will contain the instruction from the input stream. + If the result is `bfd_reloc_other' the caller can continue with + performing the relocation. Otherwise it must stop and return the + value to its caller. */ -#define TARGET_BIG_SYM bfd_elf64_sparc_vec -#define TARGET_BIG_NAME "elf64-sparc" -#define ELF_ARCH bfd_arch_sparc -#define ELF_MACHINE_CODE EM_SPARC64 -#define ELF_MAXPAGESIZE 0x100000 +static bfd_reloc_status_type +init_insn_reloc (abfd, + reloc_entry, + symbol, + data, + input_section, + output_bfd, + prelocation, + pinsn) + bfd *abfd; + arelent *reloc_entry; + asymbol *symbol; + PTR data; + asection *input_section; + bfd *output_bfd; + bfd_vma *prelocation; + bfd_vma *pinsn; +{ + bfd_vma relocation; + reloc_howto_type *howto = reloc_entry->howto; + + if (output_bfd != (bfd *) NULL + && (symbol->flags & BSF_SECTION_SYM) == 0 + && (! howto->partial_inplace + || reloc_entry->addend == 0)) + { + reloc_entry->address += input_section->output_offset; + return bfd_reloc_ok; + } + + /* This works because partial_inplace is FALSE. */ + if (output_bfd != NULL) + return bfd_reloc_continue; + + if (reloc_entry->address > input_section->_cooked_size) + return bfd_reloc_outofrange; + + relocation = (symbol->value + + symbol->section->output_section->vma + + symbol->section->output_offset); + relocation += reloc_entry->addend; + if (howto->pc_relative) + { + relocation -= (input_section->output_section->vma + + input_section->output_offset); + relocation -= reloc_entry->address; + } + + *prelocation = relocation; + *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); + return bfd_reloc_other; +} + +/* For unsupported relocs. */ + +static bfd_reloc_status_type +sparc_elf_notsup_reloc (abfd, + reloc_entry, + symbol, + data, + input_section, + output_bfd, + error_message) + bfd *abfd ATTRIBUTE_UNUSED; + arelent *reloc_entry ATTRIBUTE_UNUSED; + asymbol *symbol ATTRIBUTE_UNUSED; + PTR data ATTRIBUTE_UNUSED; + asection *input_section ATTRIBUTE_UNUSED; + bfd *output_bfd ATTRIBUTE_UNUSED; + char **error_message ATTRIBUTE_UNUSED; +{ + return bfd_reloc_notsupported; +} + +/* Handle the WDISP16 reloc. */ + +static bfd_reloc_status_type +sparc_elf_wdisp16_reloc (abfd, reloc_entry, symbol, data, input_section, + output_bfd, error_message) + bfd *abfd; + arelent *reloc_entry; + asymbol *symbol; + PTR data; + asection *input_section; + bfd *output_bfd; + char **error_message ATTRIBUTE_UNUSED; +{ + bfd_vma relocation; + bfd_vma insn; + bfd_reloc_status_type status; + + status = init_insn_reloc (abfd, reloc_entry, symbol, data, + input_section, output_bfd, &relocation, &insn); + if (status != bfd_reloc_other) + return status; + + insn &= ~ (bfd_vma) 0x303fff; + insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff); + bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); + + if ((bfd_signed_vma) relocation < - 0x40000 + || (bfd_signed_vma) relocation > 0x3ffff) + return bfd_reloc_overflow; + else + return bfd_reloc_ok; +} + +/* Handle the HIX22 reloc. */ + +static bfd_reloc_status_type +sparc_elf_hix22_reloc (abfd, + reloc_entry, + symbol, + data, + input_section, + output_bfd, + error_message) + bfd *abfd; + arelent *reloc_entry; + asymbol *symbol; + PTR data; + asection *input_section; + bfd *output_bfd; + char **error_message ATTRIBUTE_UNUSED; +{ + bfd_vma relocation; + bfd_vma insn; + bfd_reloc_status_type status; + + status = init_insn_reloc (abfd, reloc_entry, symbol, data, + input_section, output_bfd, &relocation, &insn); + if (status != bfd_reloc_other) + return status; + + relocation ^= MINUS_ONE; + insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); + bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); + + if ((relocation & ~ (bfd_vma) 0xffffffff) != 0) + return bfd_reloc_overflow; + else + return bfd_reloc_ok; +} + +/* Handle the LOX10 reloc. */ + +static bfd_reloc_status_type +sparc_elf_lox10_reloc (abfd, + reloc_entry, + symbol, + data, + input_section, + output_bfd, + error_message) + bfd *abfd; + arelent *reloc_entry; + asymbol *symbol; + PTR data; + asection *input_section; + bfd *output_bfd; + char **error_message ATTRIBUTE_UNUSED; +{ + bfd_vma relocation; + bfd_vma insn; + bfd_reloc_status_type status; + + status = init_insn_reloc (abfd, reloc_entry, symbol, data, + input_section, output_bfd, &relocation, &insn); + if (status != bfd_reloc_other) + return status; + + insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff); + bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); + + return bfd_reloc_ok; +} + +/* PLT/GOT stuff */ + +/* Both the headers and the entries are icache aligned. */ +#define PLT_ENTRY_SIZE 32 +#define PLT_HEADER_SIZE (4 * PLT_ENTRY_SIZE) +#define LARGE_PLT_THRESHOLD 32768 +#define GOT_RESERVED_ENTRIES 1 + +#define ELF_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1" + +/* Fill in the .plt section. */ + +static void +sparc64_elf_build_plt (output_bfd, contents, nentries) + bfd *output_bfd; + unsigned char *contents; + int nentries; +{ + const unsigned int nop = 0x01000000; + int i, j; + + /* The first four entries are reserved, and are initially undefined. + We fill them with `illtrap 0' to force ld.so to do something. */ + + for (i = 0; i < PLT_HEADER_SIZE/4; ++i) + bfd_put_32 (output_bfd, (bfd_vma) 0, contents+i*4); + + /* The first 32768 entries are close enough to plt1 to get there via + a straight branch. */ + + for (i = 4; i < LARGE_PLT_THRESHOLD && i < nentries; ++i) + { + unsigned char *entry = contents + i * PLT_ENTRY_SIZE; + unsigned int sethi, ba; + + /* sethi (. - plt0), %g1 */ + sethi = 0x03000000 | (i * PLT_ENTRY_SIZE); + + /* ba,a,pt %xcc, plt1 */ + ba = 0x30680000 | (((contents+PLT_ENTRY_SIZE) - (entry+4)) / 4 & 0x7ffff); + + bfd_put_32 (output_bfd, (bfd_vma) sethi, entry); + bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4); + bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8); + bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12); + bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16); + bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20); + bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24); + bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28); + } + + /* Now the tricky bit. Entries 32768 and higher are grouped in blocks of + 160: 160 entries and 160 pointers. This is to separate code from data, + which is much friendlier on the cache. */ + + for (; i < nentries; i += 160) + { + int block = (i + 160 <= nentries ? 160 : nentries - i); + for (j = 0; j < block; ++j) + { + unsigned char *entry, *ptr; + unsigned int ldx; + + entry = contents + i*PLT_ENTRY_SIZE + j*4*6; + ptr = contents + i*PLT_ENTRY_SIZE + block*4*6 + j*8; + + /* ldx [%o7 + ptr - (entry+4)], %g1 */ + ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff); + + /* mov %o7,%g5 + call .+8 + nop + ldx [%o7+P],%g1 + jmpl %o7+%g1,%g1 + mov %g5,%o7 */ + bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry); + bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4); + bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8); + bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12); + bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16); + bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20); + + bfd_put_64 (output_bfd, (bfd_vma) (contents - (entry + 4)), ptr); + } + } +} + +/* Return the offset of a particular plt entry within the .plt section. */ + +static bfd_vma +sparc64_elf_plt_entry_offset (index) + bfd_vma index; +{ + bfd_vma block, ofs; + + if (index < LARGE_PLT_THRESHOLD) + return index * PLT_ENTRY_SIZE; + + /* See above for details. */ + + block = (index - LARGE_PLT_THRESHOLD) / 160; + ofs = (index - LARGE_PLT_THRESHOLD) % 160; + + return (LARGE_PLT_THRESHOLD + block * 160) * PLT_ENTRY_SIZE + ofs * 6 * 4; +} + +static bfd_vma +sparc64_elf_plt_ptr_offset (index, max) + bfd_vma index; + bfd_vma max; +{ + bfd_vma block, ofs, last; + + BFD_ASSERT(index >= LARGE_PLT_THRESHOLD); + + /* See above for details. */ + + block = (((index - LARGE_PLT_THRESHOLD) / 160) * 160) + LARGE_PLT_THRESHOLD; + ofs = index - block; + if (block + 160 > max) + last = (max - LARGE_PLT_THRESHOLD) % 160; + else + last = 160; + + return (block * PLT_ENTRY_SIZE + + last * 6*4 + + ofs * 8); +} + +/* Look through the relocs for a section during the first phase, and + allocate space in the global offset table or procedure linkage + table. */ + +static bfd_boolean +sparc64_elf_check_relocs (abfd, info, sec, relocs) + bfd *abfd; + struct bfd_link_info *info; + asection *sec; + const Elf_Internal_Rela *relocs; +{ + bfd *dynobj; + Elf_Internal_Shdr *symtab_hdr; + struct elf_link_hash_entry **sym_hashes; + bfd_vma *local_got_offsets; + const Elf_Internal_Rela *rel; + const Elf_Internal_Rela *rel_end; + asection *sgot; + asection *srelgot; + asection *sreloc; + + if (info->relocateable || !(sec->flags & SEC_ALLOC)) + return TRUE; + + dynobj = elf_hash_table (info)->dynobj; + symtab_hdr = &elf_tdata (abfd)->symtab_hdr; + sym_hashes = elf_sym_hashes (abfd); + local_got_offsets = elf_local_got_offsets (abfd); + + sgot = NULL; + srelgot = NULL; + sreloc = NULL; + + rel_end = relocs + NUM_SHDR_ENTRIES (& elf_section_data (sec)->rel_hdr); + for (rel = relocs; rel < rel_end; rel++) + { + unsigned long r_symndx; + struct elf_link_hash_entry *h; + + r_symndx = ELF64_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 (ELF64_R_TYPE_ID (rel->r_info)) + { + case R_SPARC_GOT10: + case R_SPARC_GOT13: + case R_SPARC_GOT22: + /* This symbol requires a global offset table entry. */ + + if (dynobj == NULL) + { + /* Create the .got section. */ + elf_hash_table (info)->dynobj = dynobj = abfd; + if (! _bfd_elf_create_got_section (dynobj, info)) + return FALSE; + } + + if (sgot == NULL) + { + sgot = bfd_get_section_by_name (dynobj, ".got"); + BFD_ASSERT (sgot != NULL); + } + + if (srelgot == NULL && (h != NULL || info->shared)) + { + srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); + if (srelgot == NULL) + { + srelgot = bfd_make_section (dynobj, ".rela.got"); + if (srelgot == NULL + || ! bfd_set_section_flags (dynobj, srelgot, + (SEC_ALLOC + | SEC_LOAD + | SEC_HAS_CONTENTS + | SEC_IN_MEMORY + | SEC_LINKER_CREATED + | SEC_READONLY)) + || ! bfd_set_section_alignment (dynobj, srelgot, 3)) + return FALSE; + } + } + + if (h != NULL) + { + if (h->got.offset != (bfd_vma) -1) + { + /* We have already allocated space in the .got. */ + break; + } + h->got.offset = sgot->_raw_size; + + /* Make sure this symbol is output as a dynamic symbol. */ + if (h->dynindx == -1) + { + if (! bfd_elf64_link_record_dynamic_symbol (info, h)) + return FALSE; + } + + srelgot->_raw_size += sizeof (Elf64_External_Rela); + } + else + { + /* This is a global offset table entry for a local + symbol. */ + if (local_got_offsets == NULL) + { + bfd_size_type size; + register unsigned int i; + + size = symtab_hdr->sh_info; + size *= sizeof (bfd_vma); + local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size); + if (local_got_offsets == NULL) + return FALSE; + elf_local_got_offsets (abfd) = local_got_offsets; + for (i = 0; i < symtab_hdr->sh_info; i++) + local_got_offsets[i] = (bfd_vma) -1; + } + if (local_got_offsets[r_symndx] != (bfd_vma) -1) + { + /* We have already allocated space in the .got. */ + break; + } + local_got_offsets[r_symndx] = sgot->_raw_size; + + if (info->shared) + { + /* If we are generating a shared object, we need to + output a R_SPARC_RELATIVE reloc so that the + dynamic linker can adjust this GOT entry. */ + srelgot->_raw_size += sizeof (Elf64_External_Rela); + } + } + + sgot->_raw_size += 8; + +#if 0 + /* Doesn't work for 64-bit -fPIC, since sethi/or builds + unsigned numbers. If we permit ourselves to modify + code so we get sethi/xor, this could work. + Question: do we consider conditionally re-enabling + this for -fpic, once we know about object code models? */ + /* If the .got section is more than 0x1000 bytes, we add + 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13 + bit relocations have a greater chance of working. */ + if (sgot->_raw_size >= 0x1000 + && elf_hash_table (info)->hgot->root.u.def.value == 0) + elf_hash_table (info)->hgot->root.u.def.value = 0x1000; +#endif + + break; + + case R_SPARC_WPLT30: + case R_SPARC_PLT32: + case R_SPARC_HIPLT22: + case R_SPARC_LOPLT10: + case R_SPARC_PCPLT32: + case R_SPARC_PCPLT22: + case R_SPARC_PCPLT10: + case R_SPARC_PLT64: + /* This symbol requires a procedure linkage table entry. We + actually build the entry in adjust_dynamic_symbol, + because this might be a case of linking PIC code without + linking in any dynamic objects, in which case we don't + need to generate a procedure linkage table after all. */ + + if (h == NULL) + { + /* It does not make sense to have a procedure linkage + table entry for a local symbol. */ + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + + /* Make sure this symbol is output as a dynamic symbol. */ + if (h->dynindx == -1) + { + if (! bfd_elf64_link_record_dynamic_symbol (info, h)) + return FALSE; + } + + h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; + if (ELF64_R_TYPE_ID (rel->r_info) != R_SPARC_PLT32 + && ELF64_R_TYPE_ID (rel->r_info) != R_SPARC_PLT64) + break; + /* Fall through. */ + case R_SPARC_PC10: + case R_SPARC_PC22: + case R_SPARC_PC_HH22: + case R_SPARC_PC_HM10: + case R_SPARC_PC_LM22: + if (h != NULL + && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) + break; + /* Fall through. */ + case R_SPARC_DISP8: + case R_SPARC_DISP16: + case R_SPARC_DISP32: + case R_SPARC_DISP64: + case R_SPARC_WDISP30: + case R_SPARC_WDISP22: + case R_SPARC_WDISP19: + case R_SPARC_WDISP16: + if (h == NULL) + break; + /* Fall through. */ + case R_SPARC_8: + case R_SPARC_16: + case R_SPARC_32: + case R_SPARC_HI22: + case R_SPARC_22: + case R_SPARC_13: + case R_SPARC_LO10: + case R_SPARC_UA32: + case R_SPARC_10: + case R_SPARC_11: + case R_SPARC_64: + case R_SPARC_OLO10: + case R_SPARC_HH22: + case R_SPARC_HM10: + case R_SPARC_LM22: + case R_SPARC_7: + case R_SPARC_5: + case R_SPARC_6: + case R_SPARC_HIX22: + case R_SPARC_LOX10: + case R_SPARC_H44: + case R_SPARC_M44: + case R_SPARC_L44: + case R_SPARC_UA64: + case R_SPARC_UA16: + /* When creating a shared object, we must copy these relocs + into the output file. We create a reloc section in + dynobj and make room for the reloc. + + But don't do this for debugging sections -- this shows up + with DWARF2 -- first because they are not loaded, and + second because DWARF sez the debug info is not to be + biased by the load address. */ + if (info->shared && (sec->flags & SEC_ALLOC)) + { + if (sreloc == NULL) + { + const char *name; + + name = (bfd_elf_string_from_elf_section + (abfd, + elf_elfheader (abfd)->e_shstrndx, + elf_section_data (sec)->rel_hdr.sh_name)); + if (name == NULL) + return FALSE; + + BFD_ASSERT (strncmp (name, ".rela", 5) == 0 + && strcmp (bfd_get_section_name (abfd, sec), + name + 5) == 0); + + sreloc = bfd_get_section_by_name (dynobj, name); + if (sreloc == NULL) + { + flagword flags; + + sreloc = bfd_make_section (dynobj, name); + flags = (SEC_HAS_CONTENTS | SEC_READONLY + | SEC_IN_MEMORY | SEC_LINKER_CREATED); + if ((sec->flags & SEC_ALLOC) != 0) + flags |= SEC_ALLOC | SEC_LOAD; + if (sreloc == NULL + || ! bfd_set_section_flags (dynobj, sreloc, flags) + || ! bfd_set_section_alignment (dynobj, sreloc, 3)) + return FALSE; + } + if (sec->flags & SEC_READONLY) + info->flags |= DF_TEXTREL; + } + + sreloc->_raw_size += sizeof (Elf64_External_Rela); + } + break; + + case R_SPARC_REGISTER: + /* Nothing to do. */ + break; + + default: + (*_bfd_error_handler) (_("%s: check_relocs: unhandled reloc type %d"), + bfd_archive_filename (abfd), + ELF64_R_TYPE_ID (rel->r_info)); + return FALSE; + } + } + + return TRUE; +} + +/* Hook called by the linker routine which adds symbols from an object + file. We use it for STT_REGISTER symbols. */ + +static bfd_boolean +sparc64_elf_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; + flagword *flagsp ATTRIBUTE_UNUSED; + asection **secp ATTRIBUTE_UNUSED; + bfd_vma *valp ATTRIBUTE_UNUSED; +{ + static const char *const stt_types[] = { "NOTYPE", "OBJECT", "FUNCTION" }; + + if (ELF_ST_TYPE (sym->st_info) == STT_REGISTER) + { + int reg; + struct sparc64_elf_app_reg *p; + + reg = (int)sym->st_value; + switch (reg & ~1) + { + case 2: reg -= 2; break; + case 6: reg -= 4; break; + default: + (*_bfd_error_handler) + (_("%s: Only registers %%g[2367] can be declared using STT_REGISTER"), + bfd_archive_filename (abfd)); + return FALSE; + } + + if (info->hash->creator != abfd->xvec + || (abfd->flags & DYNAMIC) != 0) + { + /* STT_REGISTER only works when linking an elf64_sparc object. + If STT_REGISTER comes from a dynamic object, don't put it into + the output bfd. The dynamic linker will recheck it. */ + *namep = NULL; + return TRUE; + } + + p = sparc64_elf_hash_table(info)->app_regs + reg; + + if (p->name != NULL && strcmp (p->name, *namep)) + { + (*_bfd_error_handler) + (_("Register %%g%d used incompatibly: %s in %s, previously %s in %s"), + (int) sym->st_value, + **namep ? *namep : "#scratch", bfd_archive_filename (abfd), + *p->name ? p->name : "#scratch", bfd_archive_filename (p->abfd)); + return FALSE; + } + + if (p->name == NULL) + { + if (**namep) + { + struct elf_link_hash_entry *h; + + h = (struct elf_link_hash_entry *) + bfd_link_hash_lookup (info->hash, *namep, FALSE, FALSE, FALSE); + + if (h != NULL) + { + unsigned char type = h->type; + + if (type > STT_FUNC) + type = 0; + (*_bfd_error_handler) + (_("Symbol `%s' has differing types: REGISTER in %s, previously %s in %s"), + *namep, bfd_archive_filename (abfd), + stt_types[type], bfd_archive_filename (p->abfd)); + return FALSE; + } + + p->name = bfd_hash_allocate (&info->hash->table, + strlen (*namep) + 1); + if (!p->name) + return FALSE; + + strcpy (p->name, *namep); + } + else + p->name = ""; + p->bind = ELF_ST_BIND (sym->st_info); + p->abfd = abfd; + p->shndx = sym->st_shndx; + } + else + { + if (p->bind == STB_WEAK + && ELF_ST_BIND (sym->st_info) == STB_GLOBAL) + { + p->bind = STB_GLOBAL; + p->abfd = abfd; + } + } + *namep = NULL; + return TRUE; + } + else if (*namep && **namep + && info->hash->creator == abfd->xvec) + { + int i; + struct sparc64_elf_app_reg *p; + + p = sparc64_elf_hash_table(info)->app_regs; + for (i = 0; i < 4; i++, p++) + if (p->name != NULL && ! strcmp (p->name, *namep)) + { + unsigned char type = ELF_ST_TYPE (sym->st_info); + + if (type > STT_FUNC) + type = 0; + (*_bfd_error_handler) + (_("Symbol `%s' has differing types: %s in %s, previously REGISTER in %s"), + *namep, stt_types[type], bfd_archive_filename (abfd), + bfd_archive_filename (p->abfd)); + return FALSE; + } + } + return TRUE; +} + +/* This function takes care of emiting STT_REGISTER symbols + which we cannot easily keep in the symbol hash table. */ + +static bfd_boolean +sparc64_elf_output_arch_syms (output_bfd, info, finfo, func) + bfd *output_bfd ATTRIBUTE_UNUSED; + struct bfd_link_info *info; + PTR finfo; + bfd_boolean (*func) + PARAMS ((PTR, const char *, Elf_Internal_Sym *, asection *)); +{ + int reg; + struct sparc64_elf_app_reg *app_regs = + sparc64_elf_hash_table(info)->app_regs; + Elf_Internal_Sym sym; + + /* We arranged in size_dynamic_sections to put the STT_REGISTER entries + at the end of the dynlocal list, so they came at the end of the local + symbols in the symtab. Except that they aren't STB_LOCAL, so we need + to back up symtab->sh_info. */ + if (elf_hash_table (info)->dynlocal) + { + bfd * dynobj = elf_hash_table (info)->dynobj; + asection *dynsymsec = bfd_get_section_by_name (dynobj, ".dynsym"); + struct elf_link_local_dynamic_entry *e; + + for (e = elf_hash_table (info)->dynlocal; e ; e = e->next) + if (e->input_indx == -1) + break; + if (e) + { + elf_section_data (dynsymsec->output_section)->this_hdr.sh_info + = e->dynindx; + } + } + + if (info->strip == strip_all) + return TRUE; + + for (reg = 0; reg < 4; reg++) + if (app_regs [reg].name != NULL) + { + if (info->strip == strip_some + && bfd_hash_lookup (info->keep_hash, + app_regs [reg].name, + FALSE, FALSE) == NULL) + continue; + + sym.st_value = reg < 2 ? reg + 2 : reg + 4; + sym.st_size = 0; + sym.st_other = 0; + sym.st_info = ELF_ST_INFO (app_regs [reg].bind, STT_REGISTER); + sym.st_shndx = app_regs [reg].shndx; + if (! (*func) (finfo, app_regs [reg].name, &sym, + sym.st_shndx == SHN_ABS + ? bfd_abs_section_ptr : bfd_und_section_ptr)) + return FALSE; + } + + return TRUE; +} + +static int +sparc64_elf_get_symbol_type (elf_sym, type) + Elf_Internal_Sym * elf_sym; + int type; +{ + if (ELF_ST_TYPE (elf_sym->st_info) == STT_REGISTER) + return STT_REGISTER; + else + return type; +} + +/* A STB_GLOBAL,STT_REGISTER symbol should be BSF_GLOBAL + even in SHN_UNDEF section. */ + +static void +sparc64_elf_symbol_processing (abfd, asym) + bfd *abfd ATTRIBUTE_UNUSED; + asymbol *asym; +{ + elf_symbol_type *elfsym; + + elfsym = (elf_symbol_type *) asym; + if (elfsym->internal_elf_sym.st_info + == ELF_ST_INFO (STB_GLOBAL, STT_REGISTER)) + { + asym->flags |= BSF_GLOBAL; + } +} + +/* Adjust a symbol defined by a dynamic object and referenced by a + regular object. The current definition is in some section of the + dynamic object, but we're not including those sections. We have to + change the definition to something the rest of the link can + understand. */ + +static bfd_boolean +sparc64_elf_adjust_dynamic_symbol (info, h) + struct bfd_link_info *info; + struct elf_link_hash_entry *h; +{ + bfd *dynobj; + asection *s; + unsigned int power_of_two; + + dynobj = elf_hash_table (info)->dynobj; + + /* Make sure we know what is going on here. */ + BFD_ASSERT (dynobj != NULL + && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) + || h->weakdef != NULL + || ((h->elf_link_hash_flags + & ELF_LINK_HASH_DEF_DYNAMIC) != 0 + && (h->elf_link_hash_flags + & ELF_LINK_HASH_REF_REGULAR) != 0 + && (h->elf_link_hash_flags + & ELF_LINK_HASH_DEF_REGULAR) == 0))); + + /* If this is a function, put it in the procedure linkage table. We + will fill in the contents of the procedure linkage table later + (although we could actually do it here). The STT_NOTYPE + condition is a hack specifically for the Oracle libraries + delivered for Solaris; for some inexplicable reason, they define + some of their functions as STT_NOTYPE when they really should be + STT_FUNC. */ + if (h->type == STT_FUNC + || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0 + || (h->type == STT_NOTYPE + && (h->root.type == bfd_link_hash_defined + || h->root.type == bfd_link_hash_defweak) + && (h->root.u.def.section->flags & SEC_CODE) != 0)) + { + if (! elf_hash_table (info)->dynamic_sections_created) + { + /* This case can occur if we saw a WPLT30 reloc in an input + file, but none of the input files were dynamic objects. + In such a case, we don't actually need to build a + procedure linkage table, and we can just do a WDISP30 + reloc instead. */ + BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0); + return TRUE; + } + + s = bfd_get_section_by_name (dynobj, ".plt"); + BFD_ASSERT (s != NULL); + + /* The first four bit in .plt is reserved. */ + if (s->_raw_size == 0) + s->_raw_size = PLT_HEADER_SIZE; + + /* To simplify matters later, just store the plt index here. */ + h->plt.offset = s->_raw_size / PLT_ENTRY_SIZE; + + /* If this symbol is not defined in a regular file, and we are + not generating a shared library, then set the symbol to this + location in the .plt. This is required to make function + pointers compare as equal between the normal executable and + the shared library. */ + if (! info->shared + && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) + { + h->root.u.def.section = s; + h->root.u.def.value = sparc64_elf_plt_entry_offset (h->plt.offset); + } + + /* Make room for this entry. */ + s->_raw_size += PLT_ENTRY_SIZE; + + /* We also need to make an entry in the .rela.plt section. */ + + s = bfd_get_section_by_name (dynobj, ".rela.plt"); + BFD_ASSERT (s != NULL); + + s->_raw_size += sizeof (Elf64_External_Rela); + + /* The procedure linkage table size is bounded by the magnitude + of the offset we can describe in the entry. */ + if (s->_raw_size >= (bfd_vma)1 << 32) + { + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + + return TRUE; + } + + /* If this is a weak symbol, and there is a real definition, the + processor independent code will have arranged for us to see the + real definition first, and we can just use the same value. */ + if (h->weakdef != NULL) + { + BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined + || h->weakdef->root.type == bfd_link_hash_defweak); + h->root.u.def.section = h->weakdef->root.u.def.section; + h->root.u.def.value = h->weakdef->root.u.def.value; + return TRUE; + } + + /* This is a reference to a symbol defined by a dynamic object which + is not a function. */ + + /* If we are creating a shared library, we must presume that the + only references to the symbol are via the global offset table. + For such cases we need not do anything here; the relocations will + be handled correctly by relocate_section. */ + if (info->shared) + return TRUE; + + /* We must allocate the symbol in our .dynbss section, which will + become part of the .bss section of the executable. There will be + an entry for this symbol in the .dynsym section. The dynamic + object will contain position independent code, so all references + from the dynamic object to this symbol will go through the global + offset table. The dynamic linker will use the .dynsym entry to + determine the address it must put in the global offset table, so + both the dynamic object and the regular object will refer to the + same memory location for the variable. */ + + s = bfd_get_section_by_name (dynobj, ".dynbss"); + BFD_ASSERT (s != NULL); + + /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker + to copy the initial value out of the dynamic object and into the + runtime process image. We need to remember the offset into the + .rel.bss section we are going to use. */ + if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) + { + asection *srel; + + srel = bfd_get_section_by_name (dynobj, ".rela.bss"); + BFD_ASSERT (srel != NULL); + srel->_raw_size += sizeof (Elf64_External_Rela); + h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; + } + + /* We need to figure out the alignment required for this symbol. I + have no idea how ELF linkers handle this. 16-bytes is the size + of the largest type that requires hard alignment -- long double. */ + power_of_two = bfd_log2 (h->size); + if (power_of_two > 4) + power_of_two = 4; + + /* Apply the required alignment. */ + s->_raw_size = BFD_ALIGN (s->_raw_size, + (bfd_size_type) (1 << power_of_two)); + if (power_of_two > bfd_get_section_alignment (dynobj, s)) + { + if (! bfd_set_section_alignment (dynobj, s, power_of_two)) + return FALSE; + } + + /* Define the symbol as being at this point in the section. */ + h->root.u.def.section = s; + h->root.u.def.value = s->_raw_size; + + /* Increment the section size to make room for the symbol. */ + s->_raw_size += h->size; + + return TRUE; +} + +/* Set the sizes of the dynamic sections. */ + +static bfd_boolean +sparc64_elf_size_dynamic_sections (output_bfd, info) + bfd *output_bfd; + struct bfd_link_info *info; +{ + bfd *dynobj; + asection *s; + bfd_boolean relplt; + + dynobj = elf_hash_table (info)->dynobj; + BFD_ASSERT (dynobj != NULL); + + if (elf_hash_table (info)->dynamic_sections_created) + { + /* Set the contents of the .interp section to the interpreter. */ + if (info->executable) + { + s = bfd_get_section_by_name (dynobj, ".interp"); + BFD_ASSERT (s != NULL); + s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; + s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; + } + } + else + { + /* We may have created entries in the .rela.got section. + However, if we are not creating the dynamic sections, we will + not actually use these entries. Reset the size of .rela.got, + which will cause it to get stripped from the output file + below. */ + s = bfd_get_section_by_name (dynobj, ".rela.got"); + if (s != NULL) + s->_raw_size = 0; + } + + /* The check_relocs and adjust_dynamic_symbol entry points have + determined the sizes of the various dynamic sections. Allocate + memory for them. */ + relplt = FALSE; + for (s = dynobj->sections; s != NULL; s = s->next) + { + const char *name; + bfd_boolean strip; + + if ((s->flags & SEC_LINKER_CREATED) == 0) + continue; + + /* It's OK to base decisions on the section name, because none + of the dynobj section names depend upon the input files. */ + name = bfd_get_section_name (dynobj, s); + + strip = FALSE; + + if (strncmp (name, ".rela", 5) == 0) + { + if (s->_raw_size == 0) + { + /* If we don't need this section, strip it from the + output file. This is to handle .rela.bss and + .rel.plt. We must create it in + create_dynamic_sections, because it must be created + before the linker maps input sections to output + sections. The linker does that before + adjust_dynamic_symbol is called, and it is that + function which decides whether anything needs to go + into these sections. */ + strip = TRUE; + } + else + { + if (strcmp (name, ".rela.plt") == 0) + relplt = TRUE; + + /* We use the reloc_count field as a counter if we need + to copy relocs into the output file. */ + s->reloc_count = 0; + } + } + else if (strcmp (name, ".plt") != 0 + && strncmp (name, ".got", 4) != 0) + { + /* It's not one of our sections, so don't allocate space. */ + continue; + } + + if (strip) + { + _bfd_strip_section_from_output (info, s); + continue; + } + + /* Allocate memory for the section contents. Zero the memory + for the benefit of .rela.plt, which has 4 unused entries + at the beginning, and we don't want garbage. */ + s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); + if (s->contents == NULL && s->_raw_size != 0) + return FALSE; + } + + if (elf_hash_table (info)->dynamic_sections_created) + { + /* Add some entries to the .dynamic section. We fill in the + values later, in sparc64_elf_finish_dynamic_sections, but we + must add the entries now so that we get the correct size for + the .dynamic section. The DT_DEBUG entry is filled in by the + dynamic linker and used by the debugger. */ +#define add_dynamic_entry(TAG, VAL) \ + bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) + + int reg; + struct sparc64_elf_app_reg * app_regs; + struct elf_strtab_hash *dynstr; + struct elf_link_hash_table *eht = elf_hash_table (info); + + if (info->executable) + { + if (!add_dynamic_entry (DT_DEBUG, 0)) + return FALSE; + } + + if (relplt) + { + if (!add_dynamic_entry (DT_PLTGOT, 0) + || !add_dynamic_entry (DT_PLTRELSZ, 0) + || !add_dynamic_entry (DT_PLTREL, DT_RELA) + || !add_dynamic_entry (DT_JMPREL, 0)) + return FALSE; + } + + if (!add_dynamic_entry (DT_RELA, 0) + || !add_dynamic_entry (DT_RELASZ, 0) + || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) + return FALSE; + + if (info->flags & DF_TEXTREL) + { + if (!add_dynamic_entry (DT_TEXTREL, 0)) + return FALSE; + } + + /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER + entries if needed. */ + app_regs = sparc64_elf_hash_table (info)->app_regs; + dynstr = eht->dynstr; + + for (reg = 0; reg < 4; reg++) + if (app_regs [reg].name != NULL) + { + struct elf_link_local_dynamic_entry *entry, *e; + + if (!add_dynamic_entry (DT_SPARC_REGISTER, 0)) + return FALSE; + + entry = (struct elf_link_local_dynamic_entry *) + bfd_hash_allocate (&info->hash->table, sizeof (*entry)); + if (entry == NULL) + return FALSE; + + /* We cheat here a little bit: the symbol will not be local, so we + put it at the end of the dynlocal linked list. We will fix it + later on, as we have to fix other fields anyway. */ + entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4; + entry->isym.st_size = 0; + if (*app_regs [reg].name != '\0') + entry->isym.st_name + = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE); + else + entry->isym.st_name = 0; + entry->isym.st_other = 0; + entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind, + STT_REGISTER); + entry->isym.st_shndx = app_regs [reg].shndx; + entry->next = NULL; + entry->input_bfd = output_bfd; + entry->input_indx = -1; + + if (eht->dynlocal == NULL) + eht->dynlocal = entry; + else + { + for (e = eht->dynlocal; e->next; e = e->next) + ; + e->next = entry; + } + eht->dynsymcount++; + } + } +#undef add_dynamic_entry + + return TRUE; +} + +static bfd_boolean +sparc64_elf_new_section_hook (abfd, sec) + bfd *abfd; + asection *sec; +{ + struct sparc64_elf_section_data *sdata; + bfd_size_type amt = sizeof (*sdata); + + sdata = (struct sparc64_elf_section_data *) bfd_zalloc (abfd, amt); + if (sdata == NULL) + return FALSE; + sec->used_by_bfd = (PTR) sdata; + + return _bfd_elf_new_section_hook (abfd, sec); +} + +static bfd_boolean +sparc64_elf_relax_section (abfd, section, link_info, again) + bfd *abfd ATTRIBUTE_UNUSED; + asection *section ATTRIBUTE_UNUSED; + struct bfd_link_info *link_info ATTRIBUTE_UNUSED; + bfd_boolean *again; +{ + *again = FALSE; + sec_do_relax (section) = 1; + return TRUE; +} + +/* This is the condition under which finish_dynamic_symbol will be called + from elflink.h. If elflink.h doesn't call our finish_dynamic_symbol + routine, we'll need to do something about initializing any .plt and + .got entries in relocate_section. */ +#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \ + ((DYN) \ + && ((INFO)->shared \ + || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ + && ((H)->dynindx != -1 \ + || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) + +/* Relocate a SPARC64 ELF section. */ + +static bfd_boolean +sparc64_elf_relocate_section (output_bfd, info, input_bfd, input_section, + contents, relocs, local_syms, local_sections) + bfd *output_bfd; + 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; +{ + bfd *dynobj; + Elf_Internal_Shdr *symtab_hdr; + struct elf_link_hash_entry **sym_hashes; + bfd_vma *local_got_offsets; + bfd_vma got_base; + asection *sgot; + asection *splt; + asection *sreloc; + Elf_Internal_Rela *rel; + Elf_Internal_Rela *relend; + + if (info->relocateable) + return TRUE; + + dynobj = elf_hash_table (info)->dynobj; + symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; + sym_hashes = elf_sym_hashes (input_bfd); + local_got_offsets = elf_local_got_offsets (input_bfd); + + if (elf_hash_table(info)->hgot == NULL) + got_base = 0; + else + got_base = elf_hash_table (info)->hgot->root.u.def.value; + + sgot = splt = sreloc = NULL; + + rel = relocs; + relend = relocs + NUM_SHDR_ENTRIES (& elf_section_data (input_section)->rel_hdr); + for (; rel < relend; rel++) + { + int r_type; + reloc_howto_type *howto; + unsigned long r_symndx; + struct elf_link_hash_entry *h; + Elf_Internal_Sym *sym; + asection *sec; + bfd_vma relocation, off; + bfd_reloc_status_type r; + bfd_boolean is_plt = FALSE; + bfd_boolean unresolved_reloc; + + r_type = ELF64_R_TYPE_ID (rel->r_info); + if (r_type < 0 || r_type >= (int) R_SPARC_max_std) + { + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + howto = sparc64_elf_howto_table + r_type; + + /* This is a final link. */ + r_symndx = ELF64_R_SYM (rel->r_info); + h = NULL; + sym = NULL; + sec = NULL; + unresolved_reloc = FALSE; + if (r_symndx < symtab_hdr->sh_info) + { + sym = local_syms + r_symndx; + sec = local_sections[r_symndx]; + relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel); + } + 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; + + relocation = 0; + if (h->root.type == bfd_link_hash_defined + || h->root.type == bfd_link_hash_defweak) + { + sec = h->root.u.def.section; + if (sec->output_section == NULL) + /* Set a flag that will be cleared later if we find a + relocation value for this symbol. output_section + is typically NULL for symbols satisfied by a shared + library. */ + unresolved_reloc = TRUE; + else + relocation = (h->root.u.def.value + + sec->output_section->vma + + sec->output_offset); + } + else if (h->root.type == bfd_link_hash_undefweak) + ; + else if (info->shared + && !info->no_undefined + && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) + ; + else + { + if (! ((*info->callbacks->undefined_symbol) + (info, h->root.root.string, input_bfd, + input_section, rel->r_offset, + (!info->shared || info->no_undefined + || ELF_ST_VISIBILITY (h->other))))) + return FALSE; + + /* To avoid generating warning messages about truncated + relocations, set the relocation's address to be the same as + the start of this section. */ + if (input_section->output_section != NULL) + relocation = input_section->output_section->vma; + else + relocation = 0; + } + } + + do_dynreloc: + /* When generating a shared object, these relocations are copied + into the output file to be resolved at run time. */ + if (info->shared && r_symndx != 0 && (input_section->flags & SEC_ALLOC)) + { + switch (r_type) + { + case R_SPARC_PC10: + case R_SPARC_PC22: + case R_SPARC_PC_HH22: + case R_SPARC_PC_HM10: + case R_SPARC_PC_LM22: + if (h != NULL + && !strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_")) + break; + /* Fall through. */ + case R_SPARC_DISP8: + case R_SPARC_DISP16: + case R_SPARC_DISP32: + case R_SPARC_DISP64: + case R_SPARC_WDISP30: + case R_SPARC_WDISP22: + case R_SPARC_WDISP19: + case R_SPARC_WDISP16: + if (h == NULL) + break; + /* Fall through. */ + case R_SPARC_8: + case R_SPARC_16: + case R_SPARC_32: + case R_SPARC_HI22: + case R_SPARC_22: + case R_SPARC_13: + case R_SPARC_LO10: + case R_SPARC_UA32: + case R_SPARC_10: + case R_SPARC_11: + case R_SPARC_64: + case R_SPARC_OLO10: + case R_SPARC_HH22: + case R_SPARC_HM10: + case R_SPARC_LM22: + case R_SPARC_7: + case R_SPARC_5: + case R_SPARC_6: + case R_SPARC_HIX22: + case R_SPARC_LOX10: + case R_SPARC_H44: + case R_SPARC_M44: + case R_SPARC_L44: + case R_SPARC_UA64: + case R_SPARC_UA16: + { + Elf_Internal_Rela outrel; + bfd_byte *loc; + bfd_boolean skip, relocate; + + if (sreloc == NULL) + { + const char *name = + (bfd_elf_string_from_elf_section + (input_bfd, + elf_elfheader (input_bfd)->e_shstrndx, + elf_section_data (input_section)->rel_hdr.sh_name)); + + if (name == NULL) + return FALSE; + + BFD_ASSERT (strncmp (name, ".rela", 5) == 0 + && strcmp (bfd_get_section_name(input_bfd, + input_section), + name + 5) == 0); + + sreloc = bfd_get_section_by_name (dynobj, name); + BFD_ASSERT (sreloc != NULL); + } + + skip = FALSE; + relocate = FALSE; + + outrel.r_offset = + _bfd_elf_section_offset (output_bfd, info, input_section, + rel->r_offset); + if (outrel.r_offset == (bfd_vma) -1) + skip = TRUE; + else if (outrel.r_offset == (bfd_vma) -2) + skip = TRUE, relocate = TRUE; + + outrel.r_offset += (input_section->output_section->vma + + input_section->output_offset); + + /* Optimize unaligned reloc usage now that we know where + it finally resides. */ + switch (r_type) + { + case R_SPARC_16: + if (outrel.r_offset & 1) r_type = R_SPARC_UA16; + break; + case R_SPARC_UA16: + if (!(outrel.r_offset & 1)) r_type = R_SPARC_16; + break; + case R_SPARC_32: + if (outrel.r_offset & 3) r_type = R_SPARC_UA32; + break; + case R_SPARC_UA32: + if (!(outrel.r_offset & 3)) r_type = R_SPARC_32; + break; + case R_SPARC_64: + if (outrel.r_offset & 7) r_type = R_SPARC_UA64; + break; + case R_SPARC_UA64: + if (!(outrel.r_offset & 7)) r_type = R_SPARC_64; + break; + case R_SPARC_DISP8: + case R_SPARC_DISP16: + case R_SPARC_DISP32: + case R_SPARC_DISP64: + /* If the symbol is not dynamic, we should not keep + a dynamic relocation. But an .rela.* slot has been + allocated for it, output R_SPARC_NONE. + FIXME: Add code tracking needed dynamic relocs as + e.g. i386 has. */ + if (h->dynindx == -1) + skip = TRUE, relocate = TRUE; + break; + } + + if (skip) + memset (&outrel, 0, sizeof outrel); + /* h->dynindx may be -1 if the symbol was marked to + become local. */ + else if (h != NULL && ! is_plt + && ((! info->symbolic && h->dynindx != -1) + || (h->elf_link_hash_flags + & ELF_LINK_HASH_DEF_REGULAR) == 0)) + { + BFD_ASSERT (h->dynindx != -1); + outrel.r_info + = ELF64_R_INFO (h->dynindx, + ELF64_R_TYPE_INFO ( + ELF64_R_TYPE_DATA (rel->r_info), + r_type)); + outrel.r_addend = rel->r_addend; + } + else + { + outrel.r_addend = relocation + rel->r_addend; + if (r_type == R_SPARC_64) + outrel.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE); + else + { + long indx; + + if (is_plt) + sec = splt; + else if (h == NULL) + sec = local_sections[r_symndx]; + else + { + BFD_ASSERT (h->root.type == bfd_link_hash_defined + || (h->root.type + == bfd_link_hash_defweak)); + sec = h->root.u.def.section; + } + if (sec != NULL && bfd_is_abs_section (sec)) + indx = 0; + else if (sec == NULL || sec->owner == NULL) + { + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + else + { + asection *osec; + + osec = sec->output_section; + indx = elf_section_data (osec)->dynindx; + + /* We are turning this relocation into one + against a section symbol, so subtract out + the output section's address but not the + offset of the input section in the output + section. */ + outrel.r_addend -= osec->vma; + + /* FIXME: we really should be able to link non-pic + shared libraries. */ + if (indx == 0) + { + BFD_FAIL (); + (*_bfd_error_handler) + (_("%s: probably compiled without -fPIC?"), + bfd_archive_filename (input_bfd)); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + } + + outrel.r_info + = ELF64_R_INFO (indx, + ELF64_R_TYPE_INFO ( + ELF64_R_TYPE_DATA (rel->r_info), + r_type)); + } + } + + loc = sreloc->contents; + loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); + bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); + + /* This reloc will be computed at runtime, so there's no + need to do anything now. */ + if (! relocate) + continue; + } + break; + } + } + + switch (r_type) + { + case R_SPARC_GOT10: + case R_SPARC_GOT13: + case R_SPARC_GOT22: + /* Relocation is to the entry for this symbol in the global + offset table. */ + if (sgot == NULL) + { + sgot = bfd_get_section_by_name (dynobj, ".got"); + BFD_ASSERT (sgot != NULL); + } + + if (h != NULL) + { + bfd_boolean dyn; + + off = h->got.offset; + BFD_ASSERT (off != (bfd_vma) -1); + dyn = elf_hash_table (info)->dynamic_sections_created; + + if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h) + || (info->shared + && (info->symbolic + || h->dynindx == -1 + || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL)) + && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))) + { + /* This is actually a static link, or it is a -Bsymbolic + link and the symbol is defined locally, or the symbol + was forced to be local because of a version file. We + must initialize this entry in the global offset table. + Since the offset must always be a multiple of 8, we + use the least significant bit to record whether we + have initialized it already. + + When doing a dynamic link, we create a .rela.got + relocation entry to initialize the value. This is + done in the finish_dynamic_symbol routine. */ + + if ((off & 1) != 0) + off &= ~1; + else + { + bfd_put_64 (output_bfd, relocation, + sgot->contents + off); + h->got.offset |= 1; + } + } + else + unresolved_reloc = FALSE; + } + else + { + BFD_ASSERT (local_got_offsets != NULL); + off = local_got_offsets[r_symndx]; + BFD_ASSERT (off != (bfd_vma) -1); + + /* The offset must always be a multiple of 8. We use + the least significant bit to record whether we have + already processed this entry. */ + if ((off & 1) != 0) + off &= ~1; + else + { + local_got_offsets[r_symndx] |= 1; + + if (info->shared) + { + asection *s; + Elf_Internal_Rela outrel; + bfd_byte *loc; + + /* The Solaris 2.7 64-bit linker adds the contents + of the location to the value of the reloc. + Note this is different behaviour to the + 32-bit linker, which both adds the contents + and ignores the addend. So clear the location. */ + bfd_put_64 (output_bfd, (bfd_vma) 0, + sgot->contents + off); + + /* We need to generate a R_SPARC_RELATIVE reloc + for the dynamic linker. */ + s = bfd_get_section_by_name(dynobj, ".rela.got"); + BFD_ASSERT (s != NULL); + + outrel.r_offset = (sgot->output_section->vma + + sgot->output_offset + + off); + outrel.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE); + outrel.r_addend = relocation; + loc = s->contents; + loc += s->reloc_count++ * sizeof (Elf64_External_Rela); + bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); + } + else + bfd_put_64 (output_bfd, relocation, sgot->contents + off); + } + } + relocation = sgot->output_offset + off - got_base; + goto do_default; + + case R_SPARC_WPLT30: + case R_SPARC_PLT32: + case R_SPARC_HIPLT22: + case R_SPARC_LOPLT10: + case R_SPARC_PCPLT32: + case R_SPARC_PCPLT22: + case R_SPARC_PCPLT10: + case R_SPARC_PLT64: + /* Relocation is to the entry for this symbol in the + procedure linkage table. */ + BFD_ASSERT (h != NULL); + + if (h->plt.offset == (bfd_vma) -1) + { + /* We didn't make a PLT entry for this symbol. This + happens when statically linking PIC code, or when + using -Bsymbolic. */ + goto do_default; + } + + if (splt == NULL) + { + splt = bfd_get_section_by_name (dynobj, ".plt"); + BFD_ASSERT (splt != NULL); + } + + relocation = (splt->output_section->vma + + splt->output_offset + + sparc64_elf_plt_entry_offset (h->plt.offset)); + unresolved_reloc = FALSE; + if (r_type == R_SPARC_WPLT30) + goto do_wplt30; + if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64) + { + r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64; + is_plt = TRUE; + goto do_dynreloc; + } + goto do_default; + + case R_SPARC_OLO10: + { + bfd_vma x; + + relocation += rel->r_addend; + relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info); + + x = bfd_get_32 (input_bfd, contents + rel->r_offset); + x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff); + bfd_put_32 (input_bfd, x, contents + rel->r_offset); + + r = bfd_check_overflow (howto->complain_on_overflow, + howto->bitsize, howto->rightshift, + bfd_arch_bits_per_address (input_bfd), + relocation); + } + break; + + case R_SPARC_WDISP16: + { + bfd_vma x; + + relocation += rel->r_addend; + /* Adjust for pc-relative-ness. */ + relocation -= (input_section->output_section->vma + + input_section->output_offset); + relocation -= rel->r_offset; + + x = bfd_get_32 (input_bfd, contents + rel->r_offset); + x &= ~(bfd_vma) 0x303fff; + x |= ((((relocation >> 2) & 0xc000) << 6) + | ((relocation >> 2) & 0x3fff)); + bfd_put_32 (input_bfd, x, contents + rel->r_offset); + + r = bfd_check_overflow (howto->complain_on_overflow, + howto->bitsize, howto->rightshift, + bfd_arch_bits_per_address (input_bfd), + relocation); + } + break; + + case R_SPARC_HIX22: + { + bfd_vma x; + + relocation += rel->r_addend; + relocation = relocation ^ MINUS_ONE; + + x = bfd_get_32 (input_bfd, contents + rel->r_offset); + x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); + bfd_put_32 (input_bfd, x, contents + rel->r_offset); + + r = bfd_check_overflow (howto->complain_on_overflow, + howto->bitsize, howto->rightshift, + bfd_arch_bits_per_address (input_bfd), + relocation); + } + break; + + case R_SPARC_LOX10: + { + bfd_vma x; + + relocation += rel->r_addend; + relocation = (relocation & 0x3ff) | 0x1c00; + + x = bfd_get_32 (input_bfd, contents + rel->r_offset); + x = (x & ~(bfd_vma) 0x1fff) | relocation; + bfd_put_32 (input_bfd, x, contents + rel->r_offset); + + r = bfd_reloc_ok; + } + break; + + case R_SPARC_WDISP30: + do_wplt30: + if (sec_do_relax (input_section) + && rel->r_offset + 4 < input_section->_raw_size) + { +#define G0 0 +#define O7 15 +#define XCC (2 << 20) +#define COND(x) (((x)&0xf)<<25) +#define CONDA COND(0x8) +#define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC) +#define INSN_BA (F2(0,2) | CONDA) +#define INSN_OR F3(2, 0x2, 0) +#define INSN_NOP F2(0,4) + + bfd_vma x, y; + + /* If the instruction is a call with either: + restore + arithmetic instruction with rd == %o7 + where rs1 != %o7 and rs2 if it is register != %o7 + then we can optimize if the call destination is near + by changing the call into a branch always. */ + x = bfd_get_32 (input_bfd, contents + rel->r_offset); + y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); + if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2)) + { + if (((y & OP3(~0)) == OP3(0x3d) /* restore */ + || ((y & OP3(0x28)) == 0 /* arithmetic */ + && (y & RD(~0)) == RD(O7))) + && (y & RS1(~0)) != RS1(O7) + && ((y & F3I(~0)) + || (y & RS2(~0)) != RS2(O7))) + { + bfd_vma reloc; + + reloc = relocation + rel->r_addend - rel->r_offset; + reloc -= (input_section->output_section->vma + + input_section->output_offset); + if (reloc & 3) + goto do_default; + + /* Ensure the branch fits into simm22. */ + if ((reloc & ~(bfd_vma)0x7fffff) + && ((reloc | 0x7fffff) != MINUS_ONE)) + goto do_default; + reloc >>= 2; + + /* Check whether it fits into simm19. */ + if ((reloc & 0x3c0000) == 0 + || (reloc & 0x3c0000) == 0x3c0000) + x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */ + else + x = INSN_BA | (reloc & 0x3fffff); /* ba */ + bfd_put_32 (input_bfd, x, contents + rel->r_offset); + r = bfd_reloc_ok; + if (rel->r_offset >= 4 + && (y & (0xffffffff ^ RS1(~0))) + == (INSN_OR | RD(O7) | RS2(G0))) + { + bfd_vma z; + unsigned int reg; + + z = bfd_get_32 (input_bfd, + contents + rel->r_offset - 4); + if ((z & (0xffffffff ^ RD(~0))) + != (INSN_OR | RS1(O7) | RS2(G0))) + break; + + /* The sequence was + or %o7, %g0, %rN + call foo + or %rN, %g0, %o7 + + If call foo was replaced with ba, replace + or %rN, %g0, %o7 with nop. */ + + reg = (y & RS1(~0)) >> 14; + if (reg != ((z & RD(~0)) >> 25) + || reg == G0 || reg == O7) + break; + + bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP, + contents + rel->r_offset + 4); + } + break; + } + } + } + /* Fall through. */ + + default: + do_default: + r = _bfd_final_link_relocate (howto, input_bfd, input_section, + contents, rel->r_offset, + relocation, rel->r_addend); + break; + } + + /* Dynamic relocs are not propagated for SEC_DEBUGGING sections + because such sections are not SEC_ALLOC and thus ld.so will + not process them. */ + if (unresolved_reloc + && !((input_section->flags & SEC_DEBUGGING) != 0 + && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0)) + (*_bfd_error_handler) + (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"), + bfd_archive_filename (input_bfd), + bfd_get_section_name (input_bfd, input_section), + (long) rel->r_offset, + h->root.root.string); + + switch (r) + { + case bfd_reloc_ok: + break; + + default: + case bfd_reloc_outofrange: + abort (); + + case bfd_reloc_overflow: + { + const char *name; + + /* The Solaris native linker silently disregards + overflows. We don't, but this breaks stabs debugging + info, whose relocations are only 32-bits wide. Ignore + overflows for discarded entries. */ + if (r_type == R_SPARC_32 + && _bfd_elf_section_offset (output_bfd, info, input_section, + rel->r_offset) == (bfd_vma) -1) + break; + + if (h != NULL) + { + if (h->root.type == bfd_link_hash_undefweak + && howto->pc_relative) + { + /* Assume this is a call protected by other code that + detect the symbol is undefined. If this is the case, + we can safely ignore the overflow. If not, the + program is hosed anyway, and a little warning isn't + going to help. */ + break; + } + + name = h->root.root.string; + } + else + { + name = (bfd_elf_string_from_elf_section + (input_bfd, + symtab_hdr->sh_link, + sym->st_name)); + if (name == NULL) + return FALSE; + if (*name == '\0') + name = bfd_section_name (input_bfd, sec); + } + if (! ((*info->callbacks->reloc_overflow) + (info, name, howto->name, (bfd_vma) 0, + input_bfd, input_section, rel->r_offset))) + return FALSE; + } + break; + } + } + + return TRUE; +} + +/* Finish up dynamic symbol handling. We set the contents of various + dynamic sections here. */ + +static bfd_boolean +sparc64_elf_finish_dynamic_symbol (output_bfd, info, h, sym) + bfd *output_bfd; + struct bfd_link_info *info; + struct elf_link_hash_entry *h; + Elf_Internal_Sym *sym; +{ + bfd *dynobj; + + dynobj = elf_hash_table (info)->dynobj; + + if (h->plt.offset != (bfd_vma) -1) + { + asection *splt; + asection *srela; + Elf_Internal_Rela rela; + bfd_byte *loc; + + /* This symbol has an entry in the PLT. Set it up. */ + + BFD_ASSERT (h->dynindx != -1); + + splt = bfd_get_section_by_name (dynobj, ".plt"); + srela = bfd_get_section_by_name (dynobj, ".rela.plt"); + BFD_ASSERT (splt != NULL && srela != NULL); + + /* Fill in the entry in the .rela.plt section. */ + + if (h->plt.offset < LARGE_PLT_THRESHOLD) + { + rela.r_offset = sparc64_elf_plt_entry_offset (h->plt.offset); + rela.r_addend = 0; + } + else + { + bfd_vma max = splt->_raw_size / PLT_ENTRY_SIZE; + rela.r_offset = sparc64_elf_plt_ptr_offset (h->plt.offset, max); + rela.r_addend = -(sparc64_elf_plt_entry_offset (h->plt.offset) + 4) + -(splt->output_section->vma + splt->output_offset); + } + rela.r_offset += (splt->output_section->vma + splt->output_offset); + rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_JMP_SLOT); + + /* Adjust for the first 4 reserved elements in the .plt section + when setting the offset in the .rela.plt section. + Sun forgot to read their own ABI and copied elf32-sparc behaviour, + thus .plt[4] has corresponding .rela.plt[0] and so on. */ + + loc = srela->contents; + loc += (h->plt.offset - 4) * sizeof (Elf64_External_Rela); + bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); + + if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) + { + /* Mark the symbol as undefined, rather than as defined in + the .plt section. Leave the value alone. */ + sym->st_shndx = SHN_UNDEF; + /* If the symbol is weak, we do need to clear the value. + Otherwise, the PLT entry would provide a definition for + the symbol even if the symbol wasn't defined anywhere, + and so the symbol would never be NULL. */ + if ((h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR_NONWEAK) + == 0) + sym->st_value = 0; + } + } + + if (h->got.offset != (bfd_vma) -1) + { + asection *sgot; + asection *srela; + Elf_Internal_Rela rela; + bfd_byte *loc; + + /* This symbol has an entry in the GOT. Set it up. */ + + sgot = bfd_get_section_by_name (dynobj, ".got"); + srela = bfd_get_section_by_name (dynobj, ".rela.got"); + BFD_ASSERT (sgot != NULL && srela != NULL); + + rela.r_offset = (sgot->output_section->vma + + sgot->output_offset + + (h->got.offset &~ (bfd_vma) 1)); + + /* If this is a -Bsymbolic link, and the symbol is defined + locally, we just want to emit a RELATIVE reloc. Likewise if + the symbol was forced to be local because of a version file. + The entry in the global offset table will already have been + initialized in the relocate_section function. */ + if (info->shared + && (info->symbolic || h->dynindx == -1) + && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) + { + asection *sec = h->root.u.def.section; + rela.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE); + rela.r_addend = (h->root.u.def.value + + sec->output_section->vma + + sec->output_offset); + } + else + { + rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_GLOB_DAT); + rela.r_addend = 0; + } + + bfd_put_64 (output_bfd, (bfd_vma) 0, + sgot->contents + (h->got.offset &~ (bfd_vma) 1)); + loc = srela->contents; + loc += srela->reloc_count++ * sizeof (Elf64_External_Rela); + bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); + } + + if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) + { + asection *s; + Elf_Internal_Rela rela; + bfd_byte *loc; + + /* This symbols needs a copy reloc. Set it up. */ + BFD_ASSERT (h->dynindx != -1); + + s = bfd_get_section_by_name (h->root.u.def.section->owner, + ".rela.bss"); + BFD_ASSERT (s != NULL); + + rela.r_offset = (h->root.u.def.value + + h->root.u.def.section->output_section->vma + + h->root.u.def.section->output_offset); + rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_COPY); + rela.r_addend = 0; + loc = s->contents + s->reloc_count++ * sizeof (Elf64_External_Rela); + bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); + } + + /* Mark some specially defined symbols as absolute. */ + if (strcmp (h->root.root.string, "_DYNAMIC") == 0 + || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 + || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0) + sym->st_shndx = SHN_ABS; + + return TRUE; +} + +/* Finish up the dynamic sections. */ + +static bfd_boolean +sparc64_elf_finish_dynamic_sections (output_bfd, info) + bfd *output_bfd; + struct bfd_link_info *info; +{ + bfd *dynobj; + int stt_regidx = -1; + asection *sdyn; + asection *sgot; + + dynobj = elf_hash_table (info)->dynobj; + + sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); + + if (elf_hash_table (info)->dynamic_sections_created) + { + asection *splt; + Elf64_External_Dyn *dyncon, *dynconend; + + splt = bfd_get_section_by_name (dynobj, ".plt"); + BFD_ASSERT (splt != NULL && sdyn != NULL); + + dyncon = (Elf64_External_Dyn *) sdyn->contents; + dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size); + for (; dyncon < dynconend; dyncon++) + { + Elf_Internal_Dyn dyn; + const char *name; + bfd_boolean size; + + bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); + + switch (dyn.d_tag) + { + case DT_PLTGOT: name = ".plt"; size = FALSE; break; + case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break; + case DT_JMPREL: name = ".rela.plt"; size = FALSE; break; + case DT_SPARC_REGISTER: + if (stt_regidx == -1) + { + stt_regidx = + _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1); + if (stt_regidx == -1) + return FALSE; + } + dyn.d_un.d_val = stt_regidx++; + bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); + /* fallthrough */ + default: name = NULL; size = FALSE; break; + } + + if (name != NULL) + { + asection *s; + + s = bfd_get_section_by_name (output_bfd, name); + if (s == NULL) + dyn.d_un.d_val = 0; + else + { + if (! size) + dyn.d_un.d_ptr = s->vma; + else + { + if (s->_cooked_size != 0) + dyn.d_un.d_val = s->_cooked_size; + else + dyn.d_un.d_val = s->_raw_size; + } + } + bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); + } + } + + /* Initialize the contents of the .plt section. */ + if (splt->_raw_size > 0) + sparc64_elf_build_plt (output_bfd, splt->contents, + (int) (splt->_raw_size / PLT_ENTRY_SIZE)); + + elf_section_data (splt->output_section)->this_hdr.sh_entsize = + PLT_ENTRY_SIZE; + } + + /* Set the first entry in the global offset table to the address of + the dynamic section. */ + sgot = bfd_get_section_by_name (dynobj, ".got"); + BFD_ASSERT (sgot != NULL); + if (sgot->_raw_size > 0) + { + if (sdyn == NULL) + bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents); + else + bfd_put_64 (output_bfd, + sdyn->output_section->vma + sdyn->output_offset, + sgot->contents); + } + + elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8; + + return TRUE; +} + +static enum elf_reloc_type_class +sparc64_elf_reloc_type_class (rela) + const Elf_Internal_Rela *rela; +{ + switch ((int) ELF64_R_TYPE (rela->r_info)) + { + case R_SPARC_RELATIVE: + return reloc_class_relative; + case R_SPARC_JMP_SLOT: + return reloc_class_plt; + case R_SPARC_COPY: + return reloc_class_copy; + default: + return reloc_class_normal; + } +} + +/* Functions for dealing with the e_flags field. */ + +/* Merge backend specific data from an object file to the output + object file when linking. */ + +static bfd_boolean +sparc64_elf_merge_private_bfd_data (ibfd, obfd) + bfd *ibfd; + bfd *obfd; +{ + bfd_boolean error; + flagword new_flags, old_flags; + int new_mm, old_mm; + + if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour + || bfd_get_flavour (obfd) != bfd_target_elf_flavour) + return TRUE; + + new_flags = elf_elfheader (ibfd)->e_flags; + old_flags = elf_elfheader (obfd)->e_flags; + + if (!elf_flags_init (obfd)) /* First call, no flags set */ + { + elf_flags_init (obfd) = TRUE; + elf_elfheader (obfd)->e_flags = new_flags; + } + + else if (new_flags == old_flags) /* Compatible flags are ok */ + ; + + else /* Incompatible flags */ + { + error = FALSE; + +#define EF_SPARC_ISA_EXTENSIONS \ + (EF_SPARC_SUN_US1 | EF_SPARC_SUN_US3 | EF_SPARC_HAL_R1) + + if ((ibfd->flags & DYNAMIC) != 0) + { + /* We don't want dynamic objects memory ordering and + architecture to have any role. That's what dynamic linker + should do. */ + new_flags &= ~(EF_SPARCV9_MM | EF_SPARC_ISA_EXTENSIONS); + new_flags |= (old_flags + & (EF_SPARCV9_MM | EF_SPARC_ISA_EXTENSIONS)); + } + else + { + /* Choose the highest architecture requirements. */ + old_flags |= (new_flags & EF_SPARC_ISA_EXTENSIONS); + new_flags |= (old_flags & EF_SPARC_ISA_EXTENSIONS); + if ((old_flags & (EF_SPARC_SUN_US1 | EF_SPARC_SUN_US3)) + && (old_flags & EF_SPARC_HAL_R1)) + { + error = TRUE; + (*_bfd_error_handler) + (_("%s: linking UltraSPARC specific with HAL specific code"), + bfd_archive_filename (ibfd)); + } + /* Choose the most restrictive memory ordering. */ + old_mm = (old_flags & EF_SPARCV9_MM); + new_mm = (new_flags & EF_SPARCV9_MM); + old_flags &= ~EF_SPARCV9_MM; + new_flags &= ~EF_SPARCV9_MM; + if (new_mm < old_mm) + old_mm = new_mm; + old_flags |= old_mm; + new_flags |= old_mm; + } + + /* Warn about any other mismatches */ + if (new_flags != old_flags) + { + error = TRUE; + (*_bfd_error_handler) + (_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"), + bfd_archive_filename (ibfd), (long) new_flags, (long) old_flags); + } + + elf_elfheader (obfd)->e_flags = old_flags; + + if (error) + { + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + } + return TRUE; +} + +/* MARCO: Set the correct entry size for the .stab section. */ + +static bfd_boolean +sparc64_elf_fake_sections (abfd, hdr, sec) + bfd *abfd ATTRIBUTE_UNUSED; + Elf_Internal_Shdr *hdr ATTRIBUTE_UNUSED; + asection *sec; +{ + const char *name; + + name = bfd_get_section_name (abfd, sec); + + if (strcmp (name, ".stab") == 0) + { + /* Even in the 64bit case the stab entries are only 12 bytes long. */ + elf_section_data (sec)->this_hdr.sh_entsize = 12; + } + + return TRUE; +} + +/* Print a STT_REGISTER symbol to file FILE. */ + +static const char * +sparc64_elf_print_symbol_all (abfd, filep, symbol) + bfd *abfd ATTRIBUTE_UNUSED; + PTR filep; + asymbol *symbol; +{ + FILE *file = (FILE *) filep; + int reg, type; + + if (ELF_ST_TYPE (((elf_symbol_type *) symbol)->internal_elf_sym.st_info) + != STT_REGISTER) + return NULL; + + reg = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; + type = symbol->flags; + fprintf (file, "REG_%c%c%11s%c%c R", "GOLI" [reg / 8], '0' + (reg & 7), "", + ((type & BSF_LOCAL) + ? (type & BSF_GLOBAL) ? '!' : 'l' + : (type & BSF_GLOBAL) ? 'g' : ' '), + (type & BSF_WEAK) ? 'w' : ' '); + if (symbol->name == NULL || symbol->name [0] == '\0') + return "#scratch"; + else + return symbol->name; +} + +/* Set the right machine number for a SPARC64 ELF file. */ + +static bfd_boolean +sparc64_elf_object_p (abfd) + bfd *abfd; +{ + unsigned long mach = bfd_mach_sparc_v9; + + if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3) + mach = bfd_mach_sparc_v9b; + else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1) + mach = bfd_mach_sparc_v9a; + return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach); +} + +/* Relocations in the 64 bit SPARC ELF ABI are more complex than in + standard ELF, because R_SPARC_OLO10 has secondary addend in + ELF64_R_TYPE_DATA field. This structure is used to redirect the + relocation handling routines. */ + +const struct elf_size_info sparc64_elf_size_info = +{ + sizeof (Elf64_External_Ehdr), + sizeof (Elf64_External_Phdr), + sizeof (Elf64_External_Shdr), + sizeof (Elf64_External_Rel), + sizeof (Elf64_External_Rela), + sizeof (Elf64_External_Sym), + sizeof (Elf64_External_Dyn), + sizeof (Elf_External_Note), + 4, /* hash-table entry size. */ + /* Internal relocations per external relocations. + For link purposes we use just 1 internal per + 1 external, for assembly and slurp symbol table + we use 2. */ + 1, + 64, /* arch_size. */ + 3, /* log_file_align. */ + ELFCLASS64, + EV_CURRENT, + bfd_elf64_write_out_phdrs, + bfd_elf64_write_shdrs_and_ehdr, + sparc64_elf_write_relocs, + bfd_elf64_swap_symbol_in, + bfd_elf64_swap_symbol_out, + sparc64_elf_slurp_reloc_table, + bfd_elf64_slurp_symbol_table, + bfd_elf64_swap_dyn_in, + bfd_elf64_swap_dyn_out, + bfd_elf64_swap_reloc_in, + bfd_elf64_swap_reloc_out, + bfd_elf64_swap_reloca_in, + bfd_elf64_swap_reloca_out +}; + +#define TARGET_BIG_SYM bfd_elf64_sparc_vec +#define TARGET_BIG_NAME "elf64-sparc" +#define ELF_ARCH bfd_arch_sparc +#define ELF_MAXPAGESIZE 0x100000 + +/* This is the official ABI value. */ +#define ELF_MACHINE_CODE EM_SPARCV9 + +/* This is the value that we used before the ABI was released. */ +#define ELF_MACHINE_ALT1 EM_OLD_SPARCV9 + +#define bfd_elf64_bfd_link_hash_table_create \ + sparc64_elf_bfd_link_hash_table_create + +#define elf_info_to_howto \ + sparc64_elf_info_to_howto +#define bfd_elf64_get_reloc_upper_bound \ + sparc64_elf_get_reloc_upper_bound +#define bfd_elf64_get_dynamic_reloc_upper_bound \ + sparc64_elf_get_dynamic_reloc_upper_bound +#define bfd_elf64_canonicalize_reloc \ + sparc64_elf_canonicalize_reloc +#define bfd_elf64_canonicalize_dynamic_reloc \ + sparc64_elf_canonicalize_dynamic_reloc +#define bfd_elf64_bfd_reloc_type_lookup \ + sparc64_elf_reloc_type_lookup +#define bfd_elf64_bfd_relax_section \ + sparc64_elf_relax_section +#define bfd_elf64_new_section_hook \ + sparc64_elf_new_section_hook + +#define elf_backend_create_dynamic_sections \ + _bfd_elf_create_dynamic_sections +#define elf_backend_add_symbol_hook \ + sparc64_elf_add_symbol_hook +#define elf_backend_get_symbol_type \ + sparc64_elf_get_symbol_type +#define elf_backend_symbol_processing \ + sparc64_elf_symbol_processing +#define elf_backend_check_relocs \ + sparc64_elf_check_relocs +#define elf_backend_adjust_dynamic_symbol \ + sparc64_elf_adjust_dynamic_symbol +#define elf_backend_size_dynamic_sections \ + sparc64_elf_size_dynamic_sections +#define elf_backend_relocate_section \ + sparc64_elf_relocate_section +#define elf_backend_finish_dynamic_symbol \ + sparc64_elf_finish_dynamic_symbol +#define elf_backend_finish_dynamic_sections \ + sparc64_elf_finish_dynamic_sections +#define elf_backend_print_symbol_all \ + sparc64_elf_print_symbol_all +#define elf_backend_output_arch_syms \ + sparc64_elf_output_arch_syms +#define bfd_elf64_bfd_merge_private_bfd_data \ + sparc64_elf_merge_private_bfd_data +#define elf_backend_fake_sections \ + sparc64_elf_fake_sections + +#define elf_backend_size_info \ + sparc64_elf_size_info +#define elf_backend_object_p \ + sparc64_elf_object_p +#define elf_backend_reloc_type_class \ + sparc64_elf_reloc_type_class + +#define elf_backend_want_got_plt 0 +#define elf_backend_plt_readonly 0 +#define elf_backend_want_plt_sym 1 +#define elf_backend_rela_normal 1 + +/* Section 5.2.4 of the ABI specifies a 256-byte boundary for the table. */ +#define elf_backend_plt_alignment 8 -#define elf_info_to_howto sparc64_elf_info_to_howto -#define bfd_elf64_bfd_reloc_type_lookup sparc64_elf_reloc_type_lookup -#define elf_backend_relocate_section sparc64_elf_relocate_section -#define elf_backend_object_p sparc64_elf_object_p +#define elf_backend_got_header_size 8 +#define elf_backend_plt_header_size PLT_HEADER_SIZE #include "elf64-target.h"