diff options
Diffstat (limited to 'bfd/elf64-sparc.c')
| -rw-r--r-- | bfd/elf64-sparc.c | 3122 |
1 files changed, 0 insertions, 3122 deletions
diff --git a/bfd/elf64-sparc.c b/bfd/elf64-sparc.c deleted file mode 100644 index ca2e7c1d2f4..00000000000 --- a/bfd/elf64-sparc.c +++ /dev/null @@ -1,3122 +0,0 @@ -/* SPARC-specific support for 64-bit ELF - Copyright (C) 1993, 95, 96, 97, 98, 99, 2000 - Free Software Foundation, Inc. - -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 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. */ - -#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*/ - -#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 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 void sparc64_elf_build_plt - PARAMS((bfd *, unsigned char *, int)); -static bfd_vma sparc64_elf_plt_entry_offset - PARAMS((int)); -static bfd_vma sparc64_elf_plt_ptr_offset - PARAMS((int, int)); - -static boolean sparc64_elf_check_relocs - PARAMS((bfd *, struct bfd_link_info *, asection *sec, - const Elf_Internal_Rela *)); -static boolean sparc64_elf_adjust_dynamic_symbol - PARAMS((struct bfd_link_info *, struct elf_link_hash_entry *)); -static 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 boolean sparc64_elf_add_symbol_hook - PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, - const char **, flagword *, asection **, bfd_vma *)); -static void sparc64_elf_symbol_processing - PARAMS ((bfd *, asymbol *)); - -static boolean sparc64_elf_merge_private_bfd_data - PARAMS ((bfd *, bfd *)); - -static boolean sparc64_elf_relax_section - PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *)); -static 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 *)); -static long sparc64_elf_get_reloc_upper_bound PARAMS ((bfd *, asection *)); -static long sparc64_elf_get_dynamic_reloc_upper_bound PARAMS ((bfd *)); -static boolean sparc64_elf_slurp_one_reloc_table - PARAMS ((bfd *, asection *, Elf_Internal_Shdr *, asymbol **, boolean)); -static boolean sparc64_elf_slurp_reloc_table - PARAMS ((bfd *, asection *, asymbol **, boolean)); -static long sparc64_elf_canonicalize_dynamic_reloc - PARAMS ((bfd *, arelent **, asymbol **)); -static void sparc64_elf_write_relocs PARAMS ((bfd *, asection *, PTR)); - -/* 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), -#ifndef SPARC64_OLD_RELOCS - /* These aren't implemented yet. */ - HOWTO(R_SPARC_PLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PLT32", false,0,0x00000000,true), - 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, 0,4,64,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,sparc_elf_notsup_reloc, "R_SPARC_PLT64", false,0,MINUS_ONE, false), - 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) -}; - -struct elf_reloc_map { - bfd_reloc_code_real_type bfd_reloc_val; - unsigned char elf_reloc_val; -}; - -static CONST struct elf_reloc_map sparc_reloc_map[] = -{ - { BFD_RELOC_NONE, R_SPARC_NONE, }, - { BFD_RELOC_16, R_SPARC_16, }, - { BFD_RELOC_8, R_SPARC_8 }, - { BFD_RELOC_8_PCREL, R_SPARC_DISP8 }, - { 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_SPARC22, R_SPARC_22 }, - { BFD_RELOC_SPARC13, R_SPARC_13 }, - { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 }, - { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 }, - { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 }, - { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 }, - { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 }, - { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 }, - { BFD_RELOC_SPARC_COPY, R_SPARC_COPY }, - { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT }, - { 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_DISP64, R_SPARC_DISP64}, - {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 ATTRIBUTE_UNUSED; - bfd_reloc_code_real_type code; -{ - unsigned int i; - for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++) - { - if (sparc_reloc_map[i].bfd_reloc_val == code) - return &sparc64_elf_howto_table[(int) sparc_reloc_map[i].elf_reloc_val]; - } - return 0; -} - -static void -sparc64_elf_info_to_howto (abfd, cache_ptr, dst) - bfd *abfd ATTRIBUTE_UNUSED; - arelent *cache_ptr; - Elf64_Internal_Rela *dst; -{ - 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)]; -} - -/* 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; -{ - return _bfd_elf_get_dynamic_reloc_upper_bound (abfd) * 2; -} - -/* 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 boolean -sparc64_elf_slurp_one_reloc_table (abfd, asect, rel_hdr, symbols, dynamic) - bfd *abfd; - asection *asect; - Elf_Internal_Shdr *rel_hdr; - asymbol **symbols; - 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 ((size_t) rel_hdr->sh_size); - if (allocated == NULL) - goto error_return; - - if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0 - || (bfd_read (allocated, 1, rel_hdr->sh_size, abfd) - != rel_hdr->sh_size)) - goto error_return; - - native_relocs = (bfd_byte *) allocated; - - relents = asect->relocation + asect->reloc_count; - - 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) - { - Elf_Internal_Rela rela; - - bfd_elf64_swap_reloca_in (abfd, (Elf64_External_Rela *) 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)]; - } - - asect->reloc_count += relent - relents; - - if (allocated != NULL) - free (allocated); - - return true; - - error_return: - if (allocated != NULL) - free (allocated); - return false; -} - -/* Read in and swap the external relocs. */ - -static boolean -sparc64_elf_slurp_reloc_table (abfd, asect, symbols, dynamic) - bfd *abfd; - asection *asect; - asymbol **symbols; - boolean dynamic; -{ - struct bfd_elf_section_data * const d = elf_section_data (asect); - Elf_Internal_Shdr *rel_hdr; - Elf_Internal_Shdr *rel_hdr2; - - 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 - { - /* 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 = rel_hdr->sh_size / rel_hdr->sh_entsize; - rel_hdr2 = NULL; - } - - asect->relocation = ((arelent *) - bfd_alloc (abfd, - asect->reloc_count * 2 * sizeof (arelent))); - if (asect->relocation == NULL) - return false; - - /* The sparc64_elf_slurp_one_reloc_table routine increments reloc_count. */ - asect->reloc_count = 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; -} - -/* 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) - { - bfd_set_error (bfd_error_invalid_operation); - return -1; - } - - 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)) - { - arelent *p; - long count, i; - - if (! sparc64_elf_slurp_reloc_table (abfd, s, syms, true)) - return -1; - count = s->reloc_count; - p = s->relocation; - for (i = 0; i < count; i++) - *storage++ = p++; - ret += count; - } - } - - *storage = NULL; - - return ret; -} - -/* Write out the relocs. */ - -static void -sparc64_elf_write_relocs (abfd, sec, data) - bfd *abfd; - asection *sec; - PTR data; -{ - boolean *failedp = (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) - { - 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 - { - last_sym = sym; - n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym); - if (n < 0) - { - *failedp = true; - return; - } - last_sym_idx = n; - } - - if ((*ptr->sym_ptr_ptr)->the_bfd != NULL - && (*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec - && ! _bfd_elf_validate_reloc (abfd, ptr)) - { - *failedp = true; - return; - } - - if (ptr->howto->type == R_SPARC_LO10 - && idx < sec->reloc_count - 1) - { - arelent *r = sec->orelocation[idx + 1]; - - 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); - - dst_rela.r_addend = ptr->addend; - bfd_elf64_swap_reloca_out (abfd, &dst_rela, src_rela); - ++src_rela; - } -} - -/* Sparc64 ELF linker hash table. */ - -struct sparc64_elf_app_reg -{ - unsigned char bind; - unsigned short shndx; - bfd *abfd; - char *name; -}; - -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; -{ - struct sparc64_elf_link_hash_table *ret; - - ret = ((struct sparc64_elf_link_hash_table *) - bfd_zalloc (abfd, sizeof (struct sparc64_elf_link_hash_table))); - 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)) - { - bfd_release (abfd, 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. */ - -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 == 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 = (insn & ~0x303fff) | ((((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 & ~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 & ~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, 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, sethi, entry); - bfd_put_32 (output_bfd, ba, entry+4); - bfd_put_32 (output_bfd, nop, entry+8); - bfd_put_32 (output_bfd, nop, entry+12); - bfd_put_32 (output_bfd, nop, entry+16); - bfd_put_32 (output_bfd, nop, entry+20); - bfd_put_32 (output_bfd, nop, entry+24); - bfd_put_32 (output_bfd, 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); - - bfd_put_32 (output_bfd, 0x8a10000f, entry); /* mov %o7,%g5 */ - bfd_put_32 (output_bfd, 0x40000002, entry+4); /* call .+8 */ - bfd_put_32 (output_bfd, nop, entry+8); /* nop */ - bfd_put_32 (output_bfd, ldx, entry+12); /* ldx [%o7+P],%g1 */ - bfd_put_32 (output_bfd, 0x83c3c001, entry+16); /* jmpl %o7+%g1,%g1 */ - bfd_put_32 (output_bfd, 0x9e100005, entry+20); /* mov %g5,%o7 */ - - bfd_put_64 (output_bfd, 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) - int index; -{ - int 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 ((bfd_vma)(LARGE_PLT_THRESHOLD + block*160) * PLT_ENTRY_SIZE - + ofs * 6*4); -} - -static bfd_vma -sparc64_elf_plt_ptr_offset (index, max) - int index, max; -{ - int 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 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 + sec->reloc_count; - 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) - { - size_t size; - register unsigned int i; - - size = symtab_hdr->sh_info * 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; - break; - - 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; - } - } - - 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_get_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 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 char *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_get_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: " - "previously declared in %s to %s, in %s redefined to %s"), - (int)sym->st_value, - bfd_get_filename (p->abfd), *p->name ? p->name : "#scratch", - bfd_get_filename (abfd), **namep ? *namep : "#scratch"); - 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: " - "previously %s, REGISTER in %s"), - *namep, stt_types [type], bfd_get_filename (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) - return true; - else - { - 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: " - "REGISTER in %s, %s in %s"), - *namep, bfd_get_filename (p->abfd), stt_types [type], - bfd_get_filename (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 boolean -sparc64_elf_output_arch_syms (output_bfd, info, finfo, func) - bfd *output_bfd ATTRIBUTE_UNUSED; - struct bfd_link_info *info; - PTR finfo; - 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 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; - - /* 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 = s->_raw_size; - } - - /* To simplify matters later, just store the plt index here. */ - h->plt.offset = s->_raw_size / PLT_ENTRY_SIZE; - - /* 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); - - /* The first plt entries are reserved, and the relocations must - pair up exactly. */ - if (s->_raw_size == 0) - s->_raw_size += (PLT_HEADER_SIZE/PLT_ENTRY_SIZE - * sizeof (Elf64_External_Rela)); - - 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 boolean -sparc64_elf_size_dynamic_sections (output_bfd, info) - bfd *output_bfd; - struct bfd_link_info *info; -{ - bfd *dynobj; - asection *s; - boolean reltext; - 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->shared) - { - 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. */ - reltext = false; - relplt = false; - for (s = dynobj->sections; s != NULL; s = s->next) - { - const char *name; - 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 - { - const char *outname; - asection *target; - - /* If this relocation section applies to a read only - section, then we probably need a DT_TEXTREL entry. */ - outname = bfd_get_section_name (output_bfd, - s->output_section); - target = bfd_get_section_by_name (output_bfd, outname + 5); - if (target != NULL - && (target->flags & SEC_READONLY) != 0) - reltext = true; - - 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. */ - int reg; - struct sparc64_elf_app_reg * app_regs; - struct bfd_strtab_hash *dynstr; - struct elf_link_hash_table *eht = elf_hash_table (info); - - if (! info->shared) - { - if (! bfd_elf64_add_dynamic_entry (info, DT_DEBUG, 0)) - return false; - } - - if (relplt) - { - if (! bfd_elf64_add_dynamic_entry (info, DT_PLTGOT, 0) - || ! bfd_elf64_add_dynamic_entry (info, DT_PLTRELSZ, 0) - || ! bfd_elf64_add_dynamic_entry (info, DT_PLTREL, DT_RELA) - || ! bfd_elf64_add_dynamic_entry (info, DT_JMPREL, 0)) - return false; - } - - if (! bfd_elf64_add_dynamic_entry (info, DT_RELA, 0) - || ! bfd_elf64_add_dynamic_entry (info, DT_RELASZ, 0) - || ! bfd_elf64_add_dynamic_entry (info, DT_RELAENT, - sizeof (Elf64_External_Rela))) - return false; - - if (reltext) - { - if (! bfd_elf64_add_dynamic_entry (info, 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 (! bfd_elf64_add_dynamic_entry (info, 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_stringtab_add (dynstr, app_regs[reg].name, true, 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++; - } - } - - return true; -} - -#define SET_SEC_DO_RELAX(section) do { elf_section_data(section)->tdata = (void *)1; } while (0) -#define SEC_DO_RELAX(section) (elf_section_data(section)->tdata == (void *)1) - -/*ARGSUSED*/ -static 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; - boolean *again; -{ - *again = false; - SET_SEC_DO_RELAX (section); - 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; -{ - 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; - - 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 + input_section->reloc_count; - 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; - bfd_reloc_status_type r; - - 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; - - r_symndx = ELF64_R_SYM (rel->r_info); - - 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; - } - } - - continue; - } - - /* This is a final link. */ - h = NULL; - sym = NULL; - sec = NULL; - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - sec = local_sections[r_symndx]; - relocation = (sec->output_section->vma - + sec->output_offset - + sym->st_value); - } - 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) - { - boolean skip_it = false; - sec = h->root.u.def.section; - - switch (r_type) - { - 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: - if (h->plt.offset != (bfd_vma) -1) - skip_it = true; - break; - - case R_SPARC_GOT10: - case R_SPARC_GOT13: - case R_SPARC_GOT22: - if (elf_hash_table(info)->dynamic_sections_created - && (!info->shared - || (!info->symbolic && h->dynindx != -1) - || !(h->elf_link_hash_flags - & ELF_LINK_HASH_DEF_REGULAR))) - skip_it = true; - break; - - case R_SPARC_PC10: - case R_SPARC_PC22: - case R_SPARC_PC_HH22: - case R_SPARC_PC_HM10: - case R_SPARC_PC_LM22: - if (!strcmp(h->root.root.string, "_GLOBAL_OFFSET_TABLE_")) - break; - /* FALLTHRU */ - - case R_SPARC_8: - case R_SPARC_16: - case R_SPARC_32: - case R_SPARC_DISP8: - case R_SPARC_DISP16: - case R_SPARC_DISP32: - case R_SPARC_WDISP30: - case R_SPARC_WDISP22: - 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_WDISP19: - case R_SPARC_WDISP16: - case R_SPARC_7: - case R_SPARC_5: - case R_SPARC_6: - case R_SPARC_DISP64: - 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: - if (info->shared - && ((!info->symbolic && h->dynindx != -1) - || !(h->elf_link_hash_flags - & ELF_LINK_HASH_DEF_REGULAR))) - skip_it = true; - break; - } - - if (skip_it) - { - /* In these cases, we don't need the relocation - value. We check specially because in some - obscure cases sec->output_section will be NULL. */ - relocation = 0; - } - else - { - 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->shared && !info->symbolic - && !info->no_undefined - && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) - relocation = 0; - 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; - relocation = 0; - } - } - - /* When generating a shared object, these relocations are copied - into the output file to be resolved at run time. */ - if (info->shared && (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_WDISP30: - case R_SPARC_WDISP22: - case R_SPARC_WDISP19: - case R_SPARC_WDISP16: - case R_SPARC_DISP64: - 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; - boolean skip; - - 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; - - if (elf_section_data (input_section)->stab_info == NULL) - outrel.r_offset = rel->r_offset; - else - { - bfd_vma off; - - off = (_bfd_stab_section_offset - (output_bfd, &elf_hash_table (info)->stab_info, - input_section, - &elf_section_data (input_section)->stab_info, - rel->r_offset)); - if (off == MINUS_ONE) - skip = true; - outrel.r_offset = off; - } - - 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; - } - - if (skip) - memset (&outrel, 0, sizeof outrel); - /* h->dynindx may be -1 if the symbol was marked to - become local. */ - else if (h != NULL - && ((! 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 - { - if (r_type == R_SPARC_64) - { - outrel.r_info = ELF64_R_INFO (0, R_SPARC_RELATIVE); - outrel.r_addend = relocation + rel->r_addend; - } - else - { - long indx; - - 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; - - /* 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_get_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)); - outrel.r_addend = relocation + rel->r_addend; - } - } - - bfd_elf64_swap_reloca_out (output_bfd, &outrel, - (((Elf64_External_Rela *) - sreloc->contents) - + sreloc->reloc_count)); - ++sreloc->reloc_count; - - /* This reloc will be computed at runtime, so there's no - need to do anything now, unless this is a RELATIVE - reloc in an unallocated section. */ - if (skip - || (input_section->flags & SEC_ALLOC) != 0 - || ELF64_R_TYPE_ID (outrel.r_info) != R_SPARC_RELATIVE) - 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_vma off = h->got.offset; - BFD_ASSERT (off != (bfd_vma) -1); - - if (! elf_hash_table (info)->dynamic_sections_created - || (info->shared - && (info->symbolic || h->dynindx == -1) - && (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; - } - } - relocation = sgot->output_offset + off - got_base; - } - else - { - bfd_vma off; - - 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 - { - bfd_put_64 (output_bfd, relocation, sgot->contents + off); - local_got_offsets[r_symndx] |= 1; - - if (info->shared) - { - asection *srelgot; - Elf_Internal_Rela outrel; - - /* We need to generate a R_SPARC_RELATIVE reloc - for the dynamic linker. */ - srelgot = bfd_get_section_by_name(dynobj, ".rela.got"); - BFD_ASSERT (srelgot != 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; - bfd_elf64_swap_reloca_out (output_bfd, &outrel, - (((Elf64_External_Rela *) - srelgot->contents) - + srelgot->reloc_count)); - ++srelgot->reloc_count; - } - } - 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)); - if (r_type == R_SPARC_WPLT30) - goto do_wplt30; - 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 & ~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 = (x & ~0x303fff) | ((((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 & ~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 & ~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, INSN_NOP, - contents + rel->r_offset + 4); - } - break; - } - } - } - /* FALLTHROUGH */ - - default: - do_default: - r = _bfd_final_link_relocate (howto, input_bfd, input_section, - contents, rel->r_offset, - relocation, rel->r_addend); - break; - } - - switch (r) - { - case bfd_reloc_ok: - break; - - default: - case bfd_reloc_outofrange: - abort (); - - case bfd_reloc_overflow: - { - const char *name; - - 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 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; - - /* 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 - { - int 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); - - bfd_elf64_swap_reloca_out (output_bfd, &rela, - ((Elf64_External_Rela *) srela->contents - + h->plt.offset)); - - 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 (h->got.offset != (bfd_vma) -1) - { - asection *sgot; - asection *srela; - Elf_Internal_Rela rela; - - /* 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 &~ 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 - { - bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); - rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_GLOB_DAT); - rela.r_addend = 0; - } - - bfd_elf64_swap_reloca_out (output_bfd, &rela, - ((Elf64_External_Rela *) srela->contents - + srela->reloc_count)); - ++srela->reloc_count; - } - - if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) - { - asection *s; - Elf_Internal_Rela rela; - - /* 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; - bfd_elf64_swap_reloca_out (output_bfd, &rela, - ((Elf64_External_Rela *) s->contents - + s->reloc_count)); - ++s->reloc_count; - } - - /* 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 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; - 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, - 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; -} - -/* Functions for dealing with the e_flags field. */ - -/* Merge backend specific data from an object file to the output - object file when linking. */ - -static boolean -sparc64_elf_merge_private_bfd_data (ibfd, obfd) - bfd *ibfd; - bfd *obfd; -{ - 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; - - 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_SUN_US1 | EF_SPARC_HAL_R1); - new_flags |= (old_flags - & (EF_SPARCV9_MM - | EF_SPARC_SUN_US1 - | EF_SPARC_HAL_R1)); - } - else - { - /* Choose the highest architecture requirements. */ - old_flags |= (new_flags & (EF_SPARC_SUN_US1 | EF_SPARC_HAL_R1)); - new_flags |= (old_flags & (EF_SPARC_SUN_US1 | EF_SPARC_HAL_R1)); - if ((old_flags & (EF_SPARC_SUN_US1 | EF_SPARC_HAL_R1)) - == (EF_SPARC_SUN_US1 | EF_SPARC_HAL_R1)) - { - error = true; - (*_bfd_error_handler) - (_("%s: linking UltraSPARC specific with HAL specific code"), - bfd_get_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_get_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; -} - -/* 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 boolean -sparc64_elf_object_p (abfd) - bfd *abfd; -{ - unsigned long mach = bfd_mach_sparc_v9; - - 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 */ - 8, /* file_align */ - ELFCLASS64, - EV_CURRENT, - bfd_elf64_write_out_phdrs, - bfd_elf64_write_shdrs_and_ehdr, - sparc64_elf_write_relocs, - 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, - NULL, - NULL, - NULL, - NULL -}; - -#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_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 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_size_info \ - sparc64_elf_size_info -#define elf_backend_object_p \ - sparc64_elf_object_p - -#define elf_backend_want_got_plt 0 -#define elf_backend_plt_readonly 0 -#define elf_backend_want_plt_sym 1 - -/* Section 5.2.4 of the ABI specifies a 256-byte boundary for the table. */ -#define elf_backend_plt_alignment 8 - -#define elf_backend_got_header_size 8 -#define elf_backend_plt_header_size PLT_HEADER_SIZE - -#include "elf64-target.h" |