| /* SPARC-specific support for 32-bit ELF |
| 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 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 "bfdlink.h" |
| #include "libbfd.h" |
| #include "elf-bfd.h" |
| #include "elf/sparc.h" |
| #include "opcode/sparc.h" |
| |
| static reloc_howto_type *elf32_sparc_reloc_type_lookup |
| PARAMS ((bfd *, bfd_reloc_code_real_type)); |
| static void elf32_sparc_info_to_howto |
| PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); |
| static bfd_boolean elf32_sparc_check_relocs |
| PARAMS ((bfd *, struct bfd_link_info *, asection *, |
| const Elf_Internal_Rela *)); |
| static bfd_boolean elf32_sparc_adjust_dynamic_symbol |
| PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); |
| static bfd_boolean allocate_dynrelocs |
| PARAMS ((struct elf_link_hash_entry *, PTR)); |
| static bfd_boolean readonly_dynrelocs |
| PARAMS ((struct elf_link_hash_entry *, PTR)); |
| static bfd_boolean elf32_sparc_size_dynamic_sections |
| PARAMS ((bfd *, struct bfd_link_info *)); |
| static bfd_boolean elf32_sparc_new_section_hook |
| PARAMS ((bfd *, asection *)); |
| static bfd_boolean elf32_sparc_relax_section |
| PARAMS ((bfd *, asection *, struct bfd_link_info *, bfd_boolean *)); |
| static bfd_vma dtpoff_base |
| PARAMS ((struct bfd_link_info *)); |
| static bfd_vma tpoff |
| PARAMS ((struct bfd_link_info *, bfd_vma)); |
| static bfd_boolean elf32_sparc_relocate_section |
| PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
| Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); |
| static bfd_boolean elf32_sparc_finish_dynamic_symbol |
| PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, |
| Elf_Internal_Sym *)); |
| static bfd_boolean elf32_sparc_finish_dynamic_sections |
| PARAMS ((bfd *, struct bfd_link_info *)); |
| static bfd_boolean elf32_sparc_merge_private_bfd_data |
| PARAMS ((bfd *, bfd *)); |
| static struct bfd_hash_entry *link_hash_newfunc |
| PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); |
| static struct bfd_link_hash_table *elf32_sparc_link_hash_table_create |
| PARAMS ((bfd *)); |
| static bfd_boolean create_got_section |
| PARAMS ((bfd *, struct bfd_link_info *)); |
| static bfd_boolean elf32_sparc_create_dynamic_sections |
| PARAMS ((bfd *, struct bfd_link_info *)); |
| static void elf32_sparc_copy_indirect_symbol |
| PARAMS ((struct elf_backend_data *, struct elf_link_hash_entry *, |
| struct elf_link_hash_entry *)); |
| static int elf32_sparc_tls_transition |
| PARAMS ((struct bfd_link_info *, bfd *, int, int)); |
| |
| static bfd_boolean elf32_sparc_mkobject |
| PARAMS ((bfd *)); |
| static bfd_boolean elf32_sparc_object_p |
| PARAMS ((bfd *)); |
| static void elf32_sparc_final_write_processing |
| PARAMS ((bfd *, bfd_boolean)); |
| static enum elf_reloc_type_class elf32_sparc_reloc_type_class |
| PARAMS ((const Elf_Internal_Rela *)); |
| static asection * elf32_sparc_gc_mark_hook |
| PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *, |
| struct elf_link_hash_entry *, Elf_Internal_Sym *)); |
| static bfd_boolean elf32_sparc_gc_sweep_hook |
| PARAMS ((bfd *, struct bfd_link_info *, asection *, |
| const Elf_Internal_Rela *)); |
| |
| /* The relocation "howto" table. */ |
| |
| static bfd_reloc_status_type sparc_elf_notsupported_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 **)); |
| |
| reloc_howto_type _bfd_sparc_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), |
| HOWTO(R_SPARC_PLT32, 0,0,00,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,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), |
| 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), |
| /* These are for sparc64 in a 64 bit environment. |
| Values need to be here because the table is indexed by reloc number. */ |
| HOWTO(R_SPARC_64, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_64", FALSE,0,0x00000000,TRUE), |
| HOWTO(R_SPARC_OLO10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_OLO10", FALSE,0,0x00000000,TRUE), |
| HOWTO(R_SPARC_HH22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HH22", FALSE,0,0x00000000,TRUE), |
| HOWTO(R_SPARC_HM10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HM10", FALSE,0,0x00000000,TRUE), |
| HOWTO(R_SPARC_LM22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_LM22", FALSE,0,0x00000000,TRUE), |
| HOWTO(R_SPARC_PC_HH22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PC_HH22", FALSE,0,0x00000000,TRUE), |
| HOWTO(R_SPARC_PC_HM10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PC_HM10", FALSE,0,0x00000000,TRUE), |
| HOWTO(R_SPARC_PC_LM22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PC_LM22", FALSE,0,0x00000000,TRUE), |
| /* End sparc64 in 64 bit environment values. |
| The following are for sparc64 in a 32 bit environment. */ |
| 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_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE), |
| 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_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE), |
| 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_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE), |
| 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_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE), |
| 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_UA64, 0,0, 0,FALSE,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_UA64", FALSE,0,0x00000000,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_DTPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPOFF64",FALSE,0,0x00000000,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) |
| }; |
| static reloc_howto_type elf32_sparc_vtinherit_howto = |
| HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE); |
| static reloc_howto_type elf32_sparc_vtentry_howto = |
| HOWTO (R_SPARC_GNU_VTENTRY, 0,2,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", FALSE,0,0, FALSE); |
| static reloc_howto_type elf32_sparc_rev32_howto = |
| HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,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_16_PCREL, R_SPARC_DISP16 }, |
| { BFD_RELOC_8, R_SPARC_8 }, |
| { BFD_RELOC_8_PCREL, R_SPARC_DISP8 }, |
| { BFD_RELOC_CTOR, R_SPARC_32 }, |
| { 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_SPARC_PLT32, R_SPARC_PLT32 }, |
| { 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 }, |
| { 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_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 }, |
| { BFD_RELOC_VTABLE_INHERIT, R_SPARC_GNU_VTINHERIT }, |
| { BFD_RELOC_VTABLE_ENTRY, R_SPARC_GNU_VTENTRY }, |
| { BFD_RELOC_SPARC_REV32, R_SPARC_REV32 } |
| }; |
| |
| static reloc_howto_type * |
| elf32_sparc_reloc_type_lookup (abfd, code) |
| bfd *abfd ATTRIBUTE_UNUSED; |
| bfd_reloc_code_real_type code; |
| { |
| unsigned int i; |
| |
| switch (code) |
| { |
| case BFD_RELOC_VTABLE_INHERIT: |
| return &elf32_sparc_vtinherit_howto; |
| |
| case BFD_RELOC_VTABLE_ENTRY: |
| return &elf32_sparc_vtentry_howto; |
| |
| case BFD_RELOC_SPARC_REV32: |
| return &elf32_sparc_rev32_howto; |
| |
| default: |
| for (i = 0; |
| i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); |
| i++) |
| { |
| if (sparc_reloc_map[i].bfd_reloc_val == code) |
| return (_bfd_sparc_elf_howto_table |
| + (int) sparc_reloc_map[i].elf_reloc_val); |
| } |
| } |
| bfd_set_error (bfd_error_bad_value); |
| return NULL; |
| } |
| |
| /* We need to use ELF32_R_TYPE so we have our own copy of this function, |
| and elf64-sparc.c has its own copy. */ |
| |
| static void |
| elf32_sparc_info_to_howto (abfd, cache_ptr, dst) |
| bfd *abfd ATTRIBUTE_UNUSED; |
| arelent *cache_ptr; |
| Elf_Internal_Rela *dst; |
| { |
| switch (ELF32_R_TYPE(dst->r_info)) |
| { |
| case R_SPARC_GNU_VTINHERIT: |
| cache_ptr->howto = &elf32_sparc_vtinherit_howto; |
| break; |
| |
| case R_SPARC_GNU_VTENTRY: |
| cache_ptr->howto = &elf32_sparc_vtentry_howto; |
| break; |
| |
| case R_SPARC_REV32: |
| cache_ptr->howto = &elf32_sparc_rev32_howto; |
| break; |
| |
| default: |
| BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_SPARC_max_std); |
| cache_ptr->howto = &_bfd_sparc_elf_howto_table[ELF32_R_TYPE(dst->r_info)]; |
| } |
| } |
| |
| /* For unsupported relocs. */ |
| |
| static bfd_reloc_status_type |
| sparc_elf_notsupported_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 x; |
| |
| if (output_bfd != (bfd *) NULL |
| && (symbol->flags & BSF_SECTION_SYM) == 0 |
| && (! reloc_entry->howto->partial_inplace |
| || reloc_entry->addend == 0)) |
| { |
| reloc_entry->address += input_section->output_offset; |
| return bfd_reloc_ok; |
| } |
| |
| 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; |
| relocation -= (input_section->output_section->vma |
| + input_section->output_offset); |
| relocation -= reloc_entry->address; |
| |
| x = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
| x |= ((((relocation >> 2) & 0xc000) << 6) |
| | ((relocation >> 2) & 0x3fff)); |
| bfd_put_32 (abfd, x, (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; |
| |
| if (output_bfd != (bfd *) NULL |
| && (symbol->flags & BSF_SECTION_SYM) == 0) |
| { |
| reloc_entry->address += input_section->output_offset; |
| return bfd_reloc_ok; |
| } |
| |
| 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; |
| insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
| |
| insn = (insn &~ (bfd_vma) 0x3fffff) | (((~relocation) >> 10) & 0x3fffff); |
| bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); |
| |
| 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; |
| |
| if (output_bfd != (bfd *) NULL |
| && (symbol->flags & BSF_SECTION_SYM) == 0) |
| { |
| reloc_entry->address += input_section->output_offset; |
| return bfd_reloc_ok; |
| } |
| |
| 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; |
| insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
| |
| insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff); |
| bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); |
| |
| return bfd_reloc_ok; |
| } |
| |
| /* Functions for the SPARC ELF linker. */ |
| |
| /* The name of the dynamic interpreter. This is put in the .interp |
| section. */ |
| |
| #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" |
| |
| /* The nop opcode we use. */ |
| |
| #define SPARC_NOP 0x01000000 |
| |
| /* The size in bytes of an entry in the procedure linkage table. */ |
| |
| #define PLT_ENTRY_SIZE 12 |
| |
| /* The first four entries in a procedure linkage table are reserved, |
| and the initial contents are unimportant (we zero them out). |
| Subsequent entries look like this. See the SVR4 ABI SPARC |
| supplement to see how this works. */ |
| |
| /* sethi %hi(.-.plt0),%g1. We fill in the address later. */ |
| #define PLT_ENTRY_WORD0 0x03000000 |
| /* b,a .plt0. We fill in the offset later. */ |
| #define PLT_ENTRY_WORD1 0x30800000 |
| /* nop. */ |
| #define PLT_ENTRY_WORD2 SPARC_NOP |
| |
| /* The SPARC linker needs to keep track of the number of relocs that it |
| decides to copy as dynamic relocs in check_relocs for each symbol. |
| This is so that it can later discard them if they are found to be |
| unnecessary. We store the information in a field extending the |
| regular ELF linker hash table. */ |
| |
| struct elf32_sparc_dyn_relocs |
| { |
| struct elf32_sparc_dyn_relocs *next; |
| |
| /* The input section of the reloc. */ |
| asection *sec; |
| |
| /* Total number of relocs copied for the input section. */ |
| bfd_size_type count; |
| |
| /* Number of pc-relative relocs copied for the input section. */ |
| bfd_size_type pc_count; |
| }; |
| |
| /* SPARC ELF linker hash entry. */ |
| |
| struct elf32_sparc_link_hash_entry |
| { |
| struct elf_link_hash_entry elf; |
| |
| /* Track dynamic relocs copied for this symbol. */ |
| struct elf32_sparc_dyn_relocs *dyn_relocs; |
| |
| #define GOT_UNKNOWN 0 |
| #define GOT_NORMAL 1 |
| #define GOT_TLS_GD 2 |
| #define GOT_TLS_IE 3 |
| unsigned char tls_type; |
| }; |
| |
| #define elf32_sparc_hash_entry(ent) ((struct elf32_sparc_link_hash_entry *)(ent)) |
| |
| struct elf32_sparc_obj_tdata |
| { |
| struct elf_obj_tdata root; |
| |
| /* tls_type for each local got entry. */ |
| char *local_got_tls_type; |
| |
| /* TRUE if TLS GD relocs has been seen for this object. */ |
| bfd_boolean has_tlsgd; |
| }; |
| |
| #define elf32_sparc_tdata(abfd) \ |
| ((struct elf32_sparc_obj_tdata *) (abfd)->tdata.any) |
| |
| #define elf32_sparc_local_got_tls_type(abfd) \ |
| (elf32_sparc_tdata (abfd)->local_got_tls_type) |
| |
| static bfd_boolean |
| elf32_sparc_mkobject (abfd) |
| bfd *abfd; |
| { |
| bfd_size_type amt = sizeof (struct elf32_sparc_obj_tdata); |
| abfd->tdata.any = bfd_zalloc (abfd, amt); |
| if (abfd->tdata.any == NULL) |
| return FALSE; |
| return TRUE; |
| } |
| |
| /* SPARC ELF linker hash table. */ |
| |
| struct elf32_sparc_link_hash_table |
| { |
| struct elf_link_hash_table elf; |
| |
| /* Short-cuts to get to dynamic linker sections. */ |
| asection *sgot; |
| asection *srelgot; |
| asection *splt; |
| asection *srelplt; |
| asection *sdynbss; |
| asection *srelbss; |
| |
| union { |
| bfd_signed_vma refcount; |
| bfd_vma offset; |
| } tls_ldm_got; |
| |
| /* Small local sym to section mapping cache. */ |
| struct sym_sec_cache sym_sec; |
| }; |
| |
| /* Get the SPARC ELF linker hash table from a link_info structure. */ |
| |
| #define elf32_sparc_hash_table(p) \ |
| ((struct elf32_sparc_link_hash_table *) ((p)->hash)) |
| |
| /* Create an entry in an i386 ELF linker hash table. */ |
| |
| static struct bfd_hash_entry * |
| link_hash_newfunc (entry, table, string) |
| struct bfd_hash_entry *entry; |
| struct bfd_hash_table *table; |
| const char *string; |
| { |
| /* Allocate the structure if it has not already been allocated by a |
| subclass. */ |
| if (entry == NULL) |
| { |
| entry = bfd_hash_allocate (table, |
| sizeof (struct elf32_sparc_link_hash_entry)); |
| if (entry == NULL) |
| return entry; |
| } |
| |
| /* Call the allocation method of the superclass. */ |
| entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
| if (entry != NULL) |
| { |
| struct elf32_sparc_link_hash_entry *eh; |
| |
| eh = (struct elf32_sparc_link_hash_entry *) entry; |
| eh->dyn_relocs = NULL; |
| eh->tls_type = GOT_UNKNOWN; |
| } |
| |
| return entry; |
| } |
| |
| /* Create a SPARC ELF linker hash table. */ |
| |
| static struct bfd_link_hash_table * |
| elf32_sparc_link_hash_table_create (abfd) |
| bfd *abfd; |
| { |
| struct elf32_sparc_link_hash_table *ret; |
| bfd_size_type amt = sizeof (struct elf32_sparc_link_hash_table); |
| |
| ret = (struct elf32_sparc_link_hash_table *) bfd_malloc (amt); |
| if (ret == NULL) |
| return NULL; |
| |
| if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc)) |
| { |
| free (ret); |
| return NULL; |
| } |
| |
| ret->sgot = NULL; |
| ret->srelgot = NULL; |
| ret->splt = NULL; |
| ret->srelplt = NULL; |
| ret->sdynbss = NULL; |
| ret->srelbss = NULL; |
| ret->tls_ldm_got.refcount = 0; |
| ret->sym_sec.abfd = NULL; |
| |
| return &ret->elf.root; |
| } |
| |
| /* Create .got and .rela.got sections in DYNOBJ, and set up |
| shortcuts to them in our hash table. */ |
| |
| static bfd_boolean |
| create_got_section (dynobj, info) |
| bfd *dynobj; |
| struct bfd_link_info *info; |
| { |
| struct elf32_sparc_link_hash_table *htab; |
| |
| if (! _bfd_elf_create_got_section (dynobj, info)) |
| return FALSE; |
| |
| htab = elf32_sparc_hash_table (info); |
| htab->sgot = bfd_get_section_by_name (dynobj, ".got"); |
| if (!htab->sgot) |
| abort (); |
| |
| htab->srelgot = bfd_make_section (dynobj, ".rela.got"); |
| if (htab->srelgot == NULL |
| || ! bfd_set_section_flags (dynobj, htab->srelgot, |
| (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
| | SEC_IN_MEMORY | SEC_LINKER_CREATED |
| | SEC_READONLY)) |
| || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2)) |
| return FALSE; |
| return TRUE; |
| } |
| |
| /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and |
| .rela.bss sections in DYNOBJ, and set up shortcuts to them in our |
| hash table. */ |
| |
| static bfd_boolean |
| elf32_sparc_create_dynamic_sections (dynobj, info) |
| bfd *dynobj; |
| struct bfd_link_info *info; |
| { |
| struct elf32_sparc_link_hash_table *htab; |
| |
| htab = elf32_sparc_hash_table (info); |
| if (!htab->sgot && !create_got_section (dynobj, info)) |
| return FALSE; |
| |
| if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
| return FALSE; |
| |
| htab->splt = bfd_get_section_by_name (dynobj, ".plt"); |
| htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt"); |
| htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss"); |
| if (!info->shared) |
| htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss"); |
| |
| if (!htab->splt || !htab->srelplt || !htab->sdynbss |
| || (!info->shared && !htab->srelbss)) |
| abort (); |
| |
| return TRUE; |
| } |
| |
| /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| |
| static void |
| elf32_sparc_copy_indirect_symbol (bed, dir, ind) |
| struct elf_backend_data *bed; |
| struct elf_link_hash_entry *dir, *ind; |
| { |
| struct elf32_sparc_link_hash_entry *edir, *eind; |
| |
| edir = (struct elf32_sparc_link_hash_entry *) dir; |
| eind = (struct elf32_sparc_link_hash_entry *) ind; |
| |
| if (eind->dyn_relocs != NULL) |
| { |
| if (edir->dyn_relocs != NULL) |
| { |
| struct elf32_sparc_dyn_relocs **pp; |
| struct elf32_sparc_dyn_relocs *p; |
| |
| if (ind->root.type == bfd_link_hash_indirect) |
| abort (); |
| |
| /* Add reloc counts against the weak sym to the strong sym |
| list. Merge any entries against the same section. */ |
| for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) |
| { |
| struct elf32_sparc_dyn_relocs *q; |
| |
| for (q = edir->dyn_relocs; q != NULL; q = q->next) |
| if (q->sec == p->sec) |
| { |
| q->pc_count += p->pc_count; |
| q->count += p->count; |
| *pp = p->next; |
| break; |
| } |
| if (q == NULL) |
| pp = &p->next; |
| } |
| *pp = edir->dyn_relocs; |
| } |
| |
| edir->dyn_relocs = eind->dyn_relocs; |
| eind->dyn_relocs = NULL; |
| } |
| |
| if (ind->root.type == bfd_link_hash_indirect |
| && dir->got.refcount <= 0) |
| { |
| edir->tls_type = eind->tls_type; |
| eind->tls_type = GOT_UNKNOWN; |
| } |
| _bfd_elf_link_hash_copy_indirect (bed, dir, ind); |
| } |
| |
| static int |
| elf32_sparc_tls_transition (info, abfd, r_type, is_local) |
| struct bfd_link_info *info; |
| bfd *abfd; |
| int r_type; |
| int is_local; |
| { |
| if (r_type == R_SPARC_TLS_GD_HI22 |
| && ! elf32_sparc_tdata (abfd)->has_tlsgd) |
| r_type = R_SPARC_REV32; |
| |
| if (info->shared) |
| return r_type; |
| |
| switch (r_type) |
| { |
| case R_SPARC_TLS_GD_HI22: |
| if (is_local) |
| return R_SPARC_TLS_LE_HIX22; |
| return R_SPARC_TLS_IE_HI22; |
| case R_SPARC_TLS_GD_LO10: |
| if (is_local) |
| return R_SPARC_TLS_LE_LOX10; |
| return R_SPARC_TLS_IE_LO10; |
| case R_SPARC_TLS_IE_HI22: |
| if (is_local) |
| return R_SPARC_TLS_LE_HIX22; |
| return r_type; |
| case R_SPARC_TLS_IE_LO10: |
| if (is_local) |
| return R_SPARC_TLS_LE_LOX10; |
| return r_type; |
| case R_SPARC_TLS_LDM_HI22: |
| return R_SPARC_TLS_LE_HIX22; |
| case R_SPARC_TLS_LDM_LO10: |
| return R_SPARC_TLS_LE_LOX10; |
| } |
| |
| return r_type; |
| } |
| |
| /* 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 |
| elf32_sparc_check_relocs (abfd, info, sec, relocs) |
| bfd *abfd; |
| struct bfd_link_info *info; |
| asection *sec; |
| const Elf_Internal_Rela *relocs; |
| { |
| struct elf32_sparc_link_hash_table *htab; |
| 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 *sreloc; |
| bfd_boolean checked_tlsgd = FALSE; |
| |
| if (info->relocateable) |
| return TRUE; |
| |
| htab = elf32_sparc_hash_table (info); |
| symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
| sym_hashes = elf_sym_hashes (abfd); |
| local_got_offsets = elf_local_got_offsets (abfd); |
| |
| sreloc = NULL; |
| |
| rel_end = relocs + sec->reloc_count; |
| for (rel = relocs; rel < rel_end; rel++) |
| { |
| unsigned int r_type; |
| unsigned long r_symndx; |
| struct elf_link_hash_entry *h; |
| |
| r_symndx = ELF32_R_SYM (rel->r_info); |
| r_type = ELF32_R_TYPE (rel->r_info); |
| |
| if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) |
| { |
| (*_bfd_error_handler) (_("%s: bad symbol index: %d"), |
| bfd_archive_filename (abfd), |
| r_symndx); |
| return FALSE; |
| } |
| |
| if (r_symndx < symtab_hdr->sh_info) |
| h = NULL; |
| else |
| h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| |
| /* Compatibility with old R_SPARC_REV32 reloc conflicting |
| with R_SPARC_TLS_GD_HI22. */ |
| if (! checked_tlsgd) |
| switch (r_type) |
| { |
| case R_SPARC_TLS_GD_HI22: |
| { |
| const Elf_Internal_Rela *relt; |
| |
| for (relt = rel + 1; relt < rel_end; relt++) |
| if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10 |
| || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD |
| || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL) |
| break; |
| checked_tlsgd = TRUE; |
| elf32_sparc_tdata (abfd)->has_tlsgd = relt < rel_end; |
| } |
| break; |
| case R_SPARC_TLS_GD_LO10: |
| case R_SPARC_TLS_GD_ADD: |
| case R_SPARC_TLS_GD_CALL: |
| checked_tlsgd = TRUE; |
| elf32_sparc_tdata (abfd)->has_tlsgd = TRUE; |
| break; |
| } |
| |
| r_type = elf32_sparc_tls_transition (info, abfd, r_type, h == NULL); |
| switch (r_type) |
| { |
| case R_SPARC_TLS_LDM_HI22: |
| case R_SPARC_TLS_LDM_LO10: |
| htab->tls_ldm_got.refcount += 1; |
| break; |
| |
| case R_SPARC_TLS_LE_HIX22: |
| case R_SPARC_TLS_LE_LOX10: |
| if (info->shared) |
| goto r_sparc_plt32; |
| break; |
| |
| case R_SPARC_TLS_IE_HI22: |
| case R_SPARC_TLS_IE_LO10: |
| if (info->shared) |
| info->flags |= DF_STATIC_TLS; |
| /* Fall through */ |
| |
| case R_SPARC_GOT10: |
| case R_SPARC_GOT13: |
| case R_SPARC_GOT22: |
| case R_SPARC_TLS_GD_HI22: |
| case R_SPARC_TLS_GD_LO10: |
| /* This symbol requires a global offset table entry. */ |
| { |
| int tls_type, old_tls_type; |
| |
| switch (r_type) |
| { |
| default: |
| case R_SPARC_GOT10: |
| case R_SPARC_GOT13: |
| case R_SPARC_GOT22: |
| tls_type = GOT_NORMAL; |
| break; |
| case R_SPARC_TLS_GD_HI22: |
| case R_SPARC_TLS_GD_LO10: |
| tls_type = GOT_TLS_GD; |
| break; |
| case R_SPARC_TLS_IE_HI22: |
| case R_SPARC_TLS_IE_LO10: |
| tls_type = GOT_TLS_IE; |
| break; |
| } |
| |
| if (h != NULL) |
| { |
| h->got.refcount += 1; |
| old_tls_type = elf32_sparc_hash_entry(h)->tls_type; |
| } |
| else |
| { |
| bfd_signed_vma *local_got_refcounts; |
| |
| /* This is a global offset table entry for a local symbol. */ |
| local_got_refcounts = elf_local_got_refcounts (abfd); |
| if (local_got_refcounts == NULL) |
| { |
| bfd_size_type size; |
| |
| size = symtab_hdr->sh_info; |
| size *= (sizeof (bfd_signed_vma) + sizeof(char)); |
| local_got_refcounts = ((bfd_signed_vma *) |
| bfd_zalloc (abfd, size)); |
| if (local_got_refcounts == NULL) |
| return FALSE; |
| elf_local_got_refcounts (abfd) = local_got_refcounts; |
| elf32_sparc_local_got_tls_type (abfd) |
| = (char *) (local_got_refcounts + symtab_hdr->sh_info); |
| } |
| local_got_refcounts[r_symndx] += 1; |
| old_tls_type = elf32_sparc_local_got_tls_type (abfd) [r_symndx]; |
| } |
| |
| /* If a TLS symbol is accessed using IE at least once, |
| there is no point to use dynamic model for it. */ |
| if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN |
| && (old_tls_type != GOT_TLS_GD |
| || tls_type != GOT_TLS_IE)) |
| { |
| if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD) |
| tls_type = old_tls_type; |
| else |
| { |
| (*_bfd_error_handler) |
| (_("%s: `%s' accessed both as normal and thread local symbol"), |
| bfd_archive_filename (abfd), |
| h ? h->root.root.string : "<local>"); |
| return FALSE; |
| } |
| } |
| |
| if (old_tls_type != tls_type) |
| { |
| if (h != NULL) |
| elf32_sparc_hash_entry (h)->tls_type = tls_type; |
| else |
| elf32_sparc_local_got_tls_type (abfd) [r_symndx] = tls_type; |
| } |
| } |
| |
| if (htab->elf.dynobj == NULL) |
| htab->elf.dynobj = abfd; |
| if (!create_got_section (htab->elf.dynobj, info)) |
| return FALSE; |
| break; |
| |
| case R_SPARC_TLS_GD_CALL: |
| case R_SPARC_TLS_LDM_CALL: |
| if (info->shared) |
| { |
| /* These are basically R_SPARC_TLS_WPLT30 relocs against |
| __tls_get_addr. */ |
| struct bfd_link_hash_entry *bh = NULL; |
| if (! _bfd_generic_link_add_one_symbol (info, abfd, |
| "__tls_get_addr", 0, |
| bfd_und_section_ptr, 0, |
| NULL, FALSE, FALSE, |
| &bh)) |
| return FALSE; |
| h = (struct elf_link_hash_entry *) bh; |
| } |
| else |
| break; |
| /* Fall through */ |
| |
| case R_SPARC_PLT32: |
| case R_SPARC_WPLT30: |
| /* 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) |
| { |
| /* The Solaris native assembler will generate a WPLT30 |
| reloc for a local symbol if you assemble a call from |
| one section to another when using -K pic. We treat |
| it as WDISP30. */ |
| if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32) |
| goto r_sparc_plt32; |
| break; |
| } |
| |
| h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
| |
| if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32) |
| goto r_sparc_plt32; |
| h->plt.refcount += 1; |
| break; |
| |
| case R_SPARC_PC10: |
| case R_SPARC_PC22: |
| if (h != NULL) |
| h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; |
| |
| 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_WDISP30: |
| case R_SPARC_WDISP22: |
| case R_SPARC_WDISP19: |
| case R_SPARC_WDISP16: |
| 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_UA16: |
| case R_SPARC_UA32: |
| if (h != NULL) |
| h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; |
| |
| r_sparc_plt32: |
| if (h != NULL && !info->shared) |
| { |
| /* We may need a .plt entry if the function this reloc |
| refers to is in a shared lib. */ |
| h->plt.refcount += 1; |
| } |
| |
| /* If we are creating a shared library, and this is a reloc |
| against a global symbol, or a non PC relative reloc |
| against a local symbol, then we need to copy the reloc |
| into the shared library. However, if we are linking with |
| -Bsymbolic, we do not need to copy a reloc against a |
| global symbol which is defined in an object we are |
| including in the link (i.e., DEF_REGULAR is set). At |
| this point we have not seen all the input files, so it is |
| possible that DEF_REGULAR is not set now but will be set |
| later (it is never cleared). In case of a weak definition, |
| DEF_REGULAR may be cleared later by a strong definition in |
| a shared library. We account for that possibility below by |
| storing information in the relocs_copied field of the hash |
| table entry. A similar situation occurs when creating |
| shared libraries and symbol visibility changes render the |
| symbol local. |
| |
| If on the other hand, we are creating an executable, we |
| may need to keep relocations for symbols satisfied by a |
| dynamic library if we manage to avoid copy relocs for the |
| symbol. */ |
| if ((info->shared |
| && (sec->flags & SEC_ALLOC) != 0 |
| && (! _bfd_sparc_elf_howto_table[r_type].pc_relative |
| || (h != NULL |
| && (! info->symbolic |
| || h->root.type == bfd_link_hash_defweak |
| || (h->elf_link_hash_flags |
| & ELF_LINK_HASH_DEF_REGULAR) == 0)))) |
| || (!info->shared |
| && (sec->flags & SEC_ALLOC) != 0 |
| && h != NULL |
| && (h->root.type == bfd_link_hash_defweak |
| || (h->elf_link_hash_flags |
| & ELF_LINK_HASH_DEF_REGULAR) == 0))) |
| { |
| struct elf32_sparc_dyn_relocs *p; |
| struct elf32_sparc_dyn_relocs **head; |
| |
| /* 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. */ |
| if (sreloc == NULL) |
| { |
| const char *name; |
| bfd *dynobj; |
| |
| 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); |
| |
| if (htab->elf.dynobj == NULL) |
| htab->elf.dynobj = abfd; |
| dynobj = htab->elf.dynobj; |
| |
| 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, 2)) |
| return FALSE; |
| } |
| elf_section_data (sec)->sreloc = sreloc; |
| } |
| |
| /* If this is a global symbol, we count the number of |
| relocations we need for this symbol. */ |
| if (h != NULL) |
| head = &((struct elf32_sparc_link_hash_entry *) h)->dyn_relocs; |
| else |
| { |
| /* Track dynamic relocs needed for local syms too. |
| We really need local syms available to do this |
| easily. Oh well. */ |
| |
| asection *s; |
| s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, |
| sec, r_symndx); |
| if (s == NULL) |
| return FALSE; |
| |
| head = ((struct elf32_sparc_dyn_relocs **) |
| &elf_section_data (s)->local_dynrel); |
| } |
| |
| p = *head; |
| if (p == NULL || p->sec != sec) |
| { |
| bfd_size_type amt = sizeof *p; |
| p = ((struct elf32_sparc_dyn_relocs *) |
| bfd_alloc (htab->elf.dynobj, amt)); |
| if (p == NULL) |
| return FALSE; |
| p->next = *head; |
| *head = p; |
| p->sec = sec; |
| p->count = 0; |
| p->pc_count = 0; |
| } |
| |
| p->count += 1; |
| if (_bfd_sparc_elf_howto_table[r_type].pc_relative) |
| p->pc_count += 1; |
| } |
| |
| break; |
| |
| case R_SPARC_GNU_VTINHERIT: |
| if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| return FALSE; |
| break; |
| |
| case R_SPARC_GNU_VTENTRY: |
| if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend)) |
| return FALSE; |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| return TRUE; |
| } |
| |
| static asection * |
| elf32_sparc_gc_mark_hook (sec, info, rel, h, sym) |
| asection *sec; |
| struct bfd_link_info *info ATTRIBUTE_UNUSED; |
| Elf_Internal_Rela *rel; |
| struct elf_link_hash_entry *h; |
| Elf_Internal_Sym *sym; |
| { |
| if (h != NULL) |
| { |
| switch (ELF32_R_TYPE (rel->r_info)) |
| { |
| case R_SPARC_GNU_VTINHERIT: |
| case R_SPARC_GNU_VTENTRY: |
| break; |
| |
| default: |
| switch (h->root.type) |
| { |
| case bfd_link_hash_defined: |
| case bfd_link_hash_defweak: |
| return h->root.u.def.section; |
| |
| case bfd_link_hash_common: |
| return h->root.u.c.p->section; |
| |
| default: |
| break; |
| } |
| } |
| } |
| else |
| return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
| |
| return NULL; |
| } |
| |
| /* Update the got entry reference counts for the section being removed. */ |
| static bfd_boolean |
| elf32_sparc_gc_sweep_hook (abfd, info, sec, relocs) |
| bfd *abfd; |
| struct bfd_link_info *info ATTRIBUTE_UNUSED; |
| asection *sec; |
| const Elf_Internal_Rela *relocs; |
| { |
| Elf_Internal_Shdr *symtab_hdr; |
| struct elf_link_hash_entry **sym_hashes; |
| bfd_signed_vma *local_got_refcounts; |
| const Elf_Internal_Rela *rel, *relend; |
| |
| elf_section_data (sec)->local_dynrel = NULL; |
| |
| symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
| sym_hashes = elf_sym_hashes (abfd); |
| local_got_refcounts = elf_local_got_refcounts (abfd); |
| |
| relend = relocs + sec->reloc_count; |
| for (rel = relocs; rel < relend; rel++) |
| { |
| unsigned long r_symndx; |
| unsigned int r_type; |
| struct elf_link_hash_entry *h = NULL; |
| |
| r_symndx = ELF32_R_SYM (rel->r_info); |
| if (r_symndx >= symtab_hdr->sh_info) |
| { |
| struct elf32_sparc_link_hash_entry *eh; |
| struct elf32_sparc_dyn_relocs **pp; |
| struct elf32_sparc_dyn_relocs *p; |
| |
| h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| eh = (struct elf32_sparc_link_hash_entry *) h; |
| for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) |
| if (p->sec == sec) |
| { |
| /* Everything must go for SEC. */ |
| *pp = p->next; |
| break; |
| } |
| } |
| |
| r_type = ELF32_R_TYPE (rel->r_info); |
| r_type = elf32_sparc_tls_transition (info, abfd, r_type, h != NULL); |
| switch (r_type) |
| { |
| case R_SPARC_TLS_LDM_HI22: |
| case R_SPARC_TLS_LDM_LO10: |
| if (elf32_sparc_hash_table (info)->tls_ldm_got.refcount > 0) |
| elf32_sparc_hash_table (info)->tls_ldm_got.refcount -= 1; |
| break; |
| |
| case R_SPARC_TLS_GD_HI22: |
| case R_SPARC_TLS_GD_LO10: |
| case R_SPARC_TLS_IE_HI22: |
| case R_SPARC_TLS_IE_LO10: |
| case R_SPARC_GOT10: |
| case R_SPARC_GOT13: |
| case R_SPARC_GOT22: |
| if (h != NULL) |
| { |
| if (h->got.refcount > 0) |
| h->got.refcount--; |
| } |
| else |
| { |
| if (local_got_refcounts[r_symndx] > 0) |
| local_got_refcounts[r_symndx]--; |
| } |
| break; |
| |
| case R_SPARC_PC10: |
| case R_SPARC_PC22: |
| 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_WDISP30: |
| case R_SPARC_WDISP22: |
| case R_SPARC_WDISP19: |
| case R_SPARC_WDISP16: |
| 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_UA16: |
| case R_SPARC_UA32: |
| case R_SPARC_PLT32: |
| if (info->shared) |
| break; |
| /* Fall through. */ |
| |
| case R_SPARC_WPLT30: |
| if (h != NULL) |
| { |
| if (h->plt.refcount > 0) |
| h->plt.refcount--; |
| } |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| return TRUE; |
| } |
| |
| /* 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 |
| elf32_sparc_adjust_dynamic_symbol (info, h) |
| struct bfd_link_info *info; |
| struct elf_link_hash_entry *h; |
| { |
| struct elf32_sparc_link_hash_table *htab; |
| struct elf32_sparc_link_hash_entry * eh; |
| struct elf32_sparc_dyn_relocs *p; |
| asection *s; |
| unsigned int power_of_two; |
| |
| htab = elf32_sparc_hash_table (info); |
| |
| /* Make sure we know what is going on here. */ |
| BFD_ASSERT (htab->elf.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 (h->plt.refcount <= 0 |
| || (! info->shared |
| && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0 |
| && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0 |
| && h->root.type != bfd_link_hash_undefweak |
| && h->root.type != bfd_link_hash_undefined)) |
| { |
| /* This case can occur if we saw a WPLT30 reloc in an input |
| file, but the symbol was never referred to by a dynamic |
| object, or if all references were garbage collected. In |
| such a case, we don't actually need to build a procedure |
| linkage table, and we can just do a WDISP30 reloc instead. */ |
| h->plt.offset = (bfd_vma) -1; |
| h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
| } |
| |
| return TRUE; |
| } |
| else |
| h->plt.offset = (bfd_vma) -1; |
| |
| /* 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; |
| |
| /* If there are no references to this symbol that do not use the |
| GOT, we don't need to generate a copy reloc. */ |
| if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) |
| return TRUE; |
| |
| eh = (struct elf32_sparc_link_hash_entry *) h; |
| for (p = eh->dyn_relocs; p != NULL; p = p->next) |
| { |
| s = p->sec->output_section; |
| if (s != NULL && (s->flags & SEC_READONLY) != 0) |
| break; |
| } |
| |
| /* If we didn't find any dynamic relocs in read-only sections, then |
| we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
| if (p == NULL) |
| { |
| h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; |
| 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. */ |
| |
| /* 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) |
| { |
| htab->srelbss->_raw_size += sizeof (Elf32_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. */ |
| power_of_two = bfd_log2 (h->size); |
| if (power_of_two > 3) |
| power_of_two = 3; |
| |
| /* Apply the required alignment. */ |
| s = htab->sdynbss; |
| 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; |
| } |
| |
| /* 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)) |
| |
| /* Allocate space in .plt, .got and associated reloc sections for |
| dynamic relocs. */ |
| |
| static bfd_boolean |
| allocate_dynrelocs (h, inf) |
| struct elf_link_hash_entry *h; |
| PTR inf; |
| { |
| struct bfd_link_info *info; |
| struct elf32_sparc_link_hash_table *htab; |
| struct elf32_sparc_link_hash_entry *eh; |
| struct elf32_sparc_dyn_relocs *p; |
| |
| if (h->root.type == bfd_link_hash_indirect) |
| return TRUE; |
| |
| if (h->root.type == bfd_link_hash_warning) |
| /* When warning symbols are created, they **replace** the "real" |
| entry in the hash table, thus we never get to see the real |
| symbol in a hash traversal. So look at it now. */ |
| h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| |
| info = (struct bfd_link_info *) inf; |
| htab = elf32_sparc_hash_table (info); |
| |
| if (htab->elf.dynamic_sections_created |
| && h->plt.refcount > 0) |
| { |
| /* Make sure this symbol is output as a dynamic symbol. |
| Undefined weak syms won't yet be marked as dynamic. */ |
| if (h->dynindx == -1 |
| && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) |
| { |
| if (! bfd_elf32_link_record_dynamic_symbol (info, h)) |
| return FALSE; |
| } |
| |
| if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) |
| { |
| asection *s = htab->splt; |
| |
| /* The first four entries in .plt are reserved. */ |
| if (s->_raw_size == 0) |
| s->_raw_size = 4 * PLT_ENTRY_SIZE; |
| |
| /* The procedure linkage table has a maximum size. */ |
| if (s->_raw_size >= 0x400000) |
| { |
| bfd_set_error (bfd_error_bad_value); |
| return FALSE; |
| } |
| |
| h->plt.offset = s->_raw_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 = 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. */ |
| htab->srelplt->_raw_size += sizeof (Elf32_External_Rela); |
| } |
| else |
| { |
| h->plt.offset = (bfd_vma) -1; |
| h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
| } |
| } |
| else |
| { |
| h->plt.offset = (bfd_vma) -1; |
| h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
| } |
| |
| /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary, |
| make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */ |
| if (h->got.refcount > 0 |
| && !info->shared |
| && h->dynindx == -1 |
| && elf32_sparc_hash_entry(h)->tls_type == GOT_TLS_IE) |
| h->got.offset = (bfd_vma) -1; |
| else if (h->got.refcount > 0) |
| { |
| asection *s; |
| bfd_boolean dyn; |
| int tls_type = elf32_sparc_hash_entry(h)->tls_type; |
| |
| /* Make sure this symbol is output as a dynamic symbol. |
| Undefined weak syms won't yet be marked as dynamic. */ |
| if (h->dynindx == -1 |
| && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) |
| { |
| if (! bfd_elf32_link_record_dynamic_symbol (info, h)) |
| return FALSE; |
| } |
| |
| s = htab->sgot; |
| h->got.offset = s->_raw_size; |
| s->_raw_size += 4; |
| /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */ |
| if (tls_type == GOT_TLS_GD) |
| s->_raw_size += 4; |
| dyn = htab->elf.dynamic_sections_created; |
| /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation, |
| R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if |
| global. */ |
| if ((tls_type == GOT_TLS_GD && h->dynindx == -1) |
| || tls_type == GOT_TLS_IE) |
| htab->srelgot->_raw_size += sizeof (Elf32_External_Rela); |
| else if (tls_type == GOT_TLS_GD) |
| htab->srelgot->_raw_size += 2 * sizeof (Elf32_External_Rela); |
| else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h)) |
| htab->srelgot->_raw_size += sizeof (Elf32_External_Rela); |
| } |
| else |
| h->got.offset = (bfd_vma) -1; |
| |
| eh = (struct elf32_sparc_link_hash_entry *) h; |
| if (eh->dyn_relocs == NULL) |
| return TRUE; |
| |
| /* In the shared -Bsymbolic case, discard space allocated for |
| dynamic pc-relative relocs against symbols which turn out to be |
| defined in regular objects. For the normal shared case, discard |
| space for pc-relative relocs that have become local due to symbol |
| visibility changes. */ |
| |
| if (info->shared) |
| { |
| if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 |
| && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 |
| || info->symbolic)) |
| { |
| struct elf32_sparc_dyn_relocs **pp; |
| |
| for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
| { |
| p->count -= p->pc_count; |
| p->pc_count = 0; |
| if (p->count == 0) |
| *pp = p->next; |
| else |
| pp = &p->next; |
| } |
| } |
| } |
| else |
| { |
| /* For the non-shared case, discard space for relocs against |
| symbols which turn out to need copy relocs or are not |
| dynamic. */ |
| |
| if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 |
| && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 |
| && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
| || (htab->elf.dynamic_sections_created |
| && (h->root.type == bfd_link_hash_undefweak |
| || h->root.type == bfd_link_hash_undefined)))) |
| { |
| /* Make sure this symbol is output as a dynamic symbol. |
| Undefined weak syms won't yet be marked as dynamic. */ |
| if (h->dynindx == -1 |
| && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) |
| { |
| if (! bfd_elf32_link_record_dynamic_symbol (info, h)) |
| return FALSE; |
| } |
| |
| /* If that succeeded, we know we'll be keeping all the |
| relocs. */ |
| if (h->dynindx != -1) |
| goto keep; |
| } |
| |
| eh->dyn_relocs = NULL; |
| |
| keep: ; |
| } |
| |
| /* Finally, allocate space. */ |
| for (p = eh->dyn_relocs; p != NULL; p = p->next) |
| { |
| asection *sreloc = elf_section_data (p->sec)->sreloc; |
| sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela); |
| } |
| |
| return TRUE; |
| } |
| |
| /* Find any dynamic relocs that apply to read-only sections. */ |
| |
| static bfd_boolean |
| readonly_dynrelocs (h, inf) |
| struct elf_link_hash_entry *h; |
| PTR inf; |
| { |
| struct elf32_sparc_link_hash_entry *eh; |
| struct elf32_sparc_dyn_relocs *p; |
| |
| if (h->root.type == bfd_link_hash_warning) |
| h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| |
| eh = (struct elf32_sparc_link_hash_entry *) h; |
| for (p = eh->dyn_relocs; p != NULL; p = p->next) |
| { |
| asection *s = p->sec->output_section; |
| |
| if (s != NULL && (s->flags & SEC_READONLY) != 0) |
| { |
| struct bfd_link_info *info = (struct bfd_link_info *) inf; |
| |
| info->flags |= DF_TEXTREL; |
| |
| /* Not an error, just cut short the traversal. */ |
| return FALSE; |
| } |
| } |
| return TRUE; |
| } |
| |
| /* Set the sizes of the dynamic sections. */ |
| |
| static bfd_boolean |
| elf32_sparc_size_dynamic_sections (output_bfd, info) |
| bfd *output_bfd ATTRIBUTE_UNUSED; |
| struct bfd_link_info *info; |
| { |
| struct elf32_sparc_link_hash_table *htab; |
| bfd *dynobj; |
| asection *s; |
| bfd *ibfd; |
| |
| htab = elf32_sparc_hash_table (info); |
| dynobj = htab->elf.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; |
| } |
| } |
| |
| /* Set up .got offsets for local syms, and space for local dynamic |
| relocs. */ |
| for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
| { |
| bfd_signed_vma *local_got; |
| bfd_signed_vma *end_local_got; |
| char *local_tls_type; |
| bfd_size_type locsymcount; |
| Elf_Internal_Shdr *symtab_hdr; |
| asection *srel; |
| |
| if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
| continue; |
| |
| for (s = ibfd->sections; s != NULL; s = s->next) |
| { |
| struct elf32_sparc_dyn_relocs *p; |
| |
| for (p = *((struct elf32_sparc_dyn_relocs **) |
| &elf_section_data (s)->local_dynrel); |
| p != NULL; |
| p = p->next) |
| { |
| if (!bfd_is_abs_section (p->sec) |
| && bfd_is_abs_section (p->sec->output_section)) |
| { |
| /* Input section has been discarded, either because |
| it is a copy of a linkonce section or due to |
| linker script /DISCARD/, so we'll be discarding |
| the relocs too. */ |
| } |
| else if (p->count != 0) |
| { |
| srel = elf_section_data (p->sec)->sreloc; |
| srel->_raw_size += p->count * sizeof (Elf32_External_Rela); |
| if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| info->flags |= DF_TEXTREL; |
| } |
| } |
| } |
| |
| local_got = elf_local_got_refcounts (ibfd); |
| if (!local_got) |
| continue; |
| |
| symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
| locsymcount = symtab_hdr->sh_info; |
| end_local_got = local_got + locsymcount; |
| local_tls_type = elf32_sparc_local_got_tls_type (ibfd); |
| s = htab->sgot; |
| srel = htab->srelgot; |
| for (; local_got < end_local_got; ++local_got, ++local_tls_type) |
| { |
| if (*local_got > 0) |
| { |
| *local_got = s->_raw_size; |
| s->_raw_size += 4; |
| if (*local_tls_type == GOT_TLS_GD) |
| s->_raw_size += 4; |
| if (info->shared |
| || *local_tls_type == GOT_TLS_GD |
| || *local_tls_type == GOT_TLS_IE) |
| srel->_raw_size += sizeof (Elf32_External_Rela); |
| } |
| else |
| *local_got = (bfd_vma) -1; |
| } |
| } |
| |
| if (htab->tls_ldm_got.refcount > 0) |
| { |
| /* Allocate 2 got entries and 1 dynamic reloc for |
| R_SPARC_TLS_LDM_{HI22,LO10} relocs. */ |
| htab->tls_ldm_got.offset = htab->sgot->_raw_size; |
| htab->sgot->_raw_size += 8; |
| htab->srelgot->_raw_size += sizeof (Elf32_External_Rela); |
| } |
| else |
| htab->tls_ldm_got.offset = -1; |
| |
| /* Allocate global sym .plt and .got entries, and space for global |
| sym dynamic relocs. */ |
| elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); |
| |
| if (elf_hash_table (info)->dynamic_sections_created) |
| { |
| /* Make space for the trailing nop in .plt. */ |
| if (htab->splt->_raw_size > 0) |
| htab->splt->_raw_size += 4; |
| |
| /* 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 (htab->sgot->_raw_size >= 0x1000 |
| && elf_hash_table (info)->hgot->root.u.def.value == 0) |
| elf_hash_table (info)->hgot->root.u.def.value = 0x1000; |
| } |
| |
| /* The check_relocs and adjust_dynamic_symbol entry points have |
| determined the sizes of the various dynamic sections. Allocate |
| memory for them. */ |
| for (s = dynobj->sections; s != NULL; s = s->next) |
| { |
| const char *name; |
| bfd_boolean strip = FALSE; |
| |
| 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); |
| |
| 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 |
| { |
| /* 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 (s != htab->splt && s != htab->sgot) |
| { |
| /* 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. */ |
| /* FIXME: This should be a call to bfd_alloc not bfd_zalloc. |
| Unused entries should be reclaimed before the section's contents |
| are written out, but at the moment this does not happen. Thus in |
| order to prevent writing out garbage, we initialise the section's |
| contents to zero. */ |
| 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 elf32_sparc_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_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) |
| |
| if (!info->shared) |
| { |
| if (!add_dynamic_entry (DT_DEBUG, 0)) |
| return FALSE; |
| } |
| |
| if (htab->srelplt->_raw_size != 0) |
| { |
| 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 (Elf32_External_Rela))) |
| return FALSE; |
| |
| /* If any dynamic relocs apply to a read-only section, |
| then we need a DT_TEXTREL entry. */ |
| if ((info->flags & DF_TEXTREL) == 0) |
| elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, |
| (PTR) info); |
| |
| if (info->flags & DF_TEXTREL) |
| { |
| if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| return FALSE; |
| } |
| } |
| #undef add_dynamic_entry |
| |
| return TRUE; |
| } |
| |
| struct elf32_sparc_section_data |
| { |
| struct bfd_elf_section_data elf; |
| unsigned int do_relax; |
| }; |
| |
| #define sec_do_relax(sec) \ |
| ((struct elf32_sparc_section_data *) elf_section_data (sec))->do_relax |
| |
| static bfd_boolean |
| elf32_sparc_new_section_hook (abfd, sec) |
| bfd *abfd; |
| asection *sec; |
| { |
| struct elf32_sparc_section_data *sdata; |
| bfd_size_type amt = sizeof (*sdata); |
| |
| sdata = (struct elf32_sparc_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 |
| elf32_sparc_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; |
| } |
| |
| /* Return the base VMA address which should be subtracted from real addresses |
| when resolving @dtpoff relocation. |
| This is PT_TLS segment p_vaddr. */ |
| |
| static bfd_vma |
| dtpoff_base (info) |
| struct bfd_link_info *info; |
| { |
| /* If tls_segment is NULL, we should have signalled an error already. */ |
| if (elf_hash_table (info)->tls_segment == NULL) |
| return 0; |
| return elf_hash_table (info)->tls_segment->start; |
| } |
| |
| /* Return the relocation value for @tpoff relocation |
| if STT_TLS virtual address is ADDRESS. */ |
| |
| static bfd_vma |
| tpoff (info, address) |
| struct bfd_link_info *info; |
| bfd_vma address; |
| { |
| struct elf_link_tls_segment *tls_segment |
| = elf_hash_table (info)->tls_segment; |
| |
| /* If tls_segment is NULL, we should have signalled an error already. */ |
| if (tls_segment == NULL) |
| return 0; |
| return -(align_power (tls_segment->size, tls_segment->align) |
| + tls_segment->start - address); |
| } |
| |
| /* Relocate a SPARC ELF section. */ |
| |
| static bfd_boolean |
| elf32_sparc_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; |
| { |
| struct elf32_sparc_link_hash_table *htab; |
| Elf_Internal_Shdr *symtab_hdr; |
| struct elf_link_hash_entry **sym_hashes; |
| bfd_vma *local_got_offsets; |
| bfd_vma got_base; |
| asection *sreloc; |
| Elf_Internal_Rela *rel; |
| Elf_Internal_Rela *relend; |
| |
| if (info->relocateable) |
| return TRUE; |
| |
| htab = elf32_sparc_hash_table (info); |
| 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; |
| |
| sreloc = elf_section_data (input_section)->sreloc; |
| |
| rel = relocs; |
| relend = relocs + input_section->reloc_count; |
| for (; rel < relend; rel++) |
| { |
| int r_type, tls_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 = ELF32_R_TYPE (rel->r_info); |
| |
| if (r_type == R_SPARC_GNU_VTINHERIT |
| || r_type == R_SPARC_GNU_VTENTRY) |
| continue; |
| |
| if (r_type < 0 || r_type >= (int) R_SPARC_max_std) |
| { |
| bfd_set_error (bfd_error_bad_value); |
| return FALSE; |
| } |
| howto = _bfd_sparc_elf_howto_table + r_type; |
| |
| /* This is a final link. */ |
| r_symndx = ELF32_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; |
| } |
| } |
| |
| 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 (htab->sgot == NULL) |
| abort (); |
| |
| 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 4, 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_32 (output_bfd, relocation, |
| htab->sgot->contents + off); |
| h->got.offset |= 1; |
| } |
| } |
| else |
| unresolved_reloc = FALSE; |
| } |
| else |
| { |
| BFD_ASSERT (local_got_offsets != NULL |
| && local_got_offsets[r_symndx] != (bfd_vma) -1); |
| |
| off = local_got_offsets[r_symndx]; |
| |
| /* The offset must always be a multiple of 4. We use |
| the least significant bit to record whether we have |
| already processed this entry. */ |
| if ((off & 1) != 0) |
| off &= ~1; |
| else |
| { |
| |
| if (info->shared) |
| { |
| asection *s; |
| Elf_Internal_Rela outrel; |
| bfd_byte *loc; |
| |
| /* We need to generate a R_SPARC_RELATIVE reloc |
| for the dynamic linker. */ |
| s = htab->srelgot; |
| BFD_ASSERT (s != NULL); |
| |
| outrel.r_offset = (htab->sgot->output_section->vma |
| + htab->sgot->output_offset |
| + off); |
| outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); |
| outrel.r_addend = relocation; |
| relocation = 0; |
| loc = s->contents; |
| loc += s->reloc_count++ * sizeof (Elf32_External_Rela); |
| bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
| } |
| |
| bfd_put_32 (output_bfd, relocation, |
| htab->sgot->contents + off); |
| local_got_offsets[r_symndx] |= 1; |
| } |
| } |
| relocation = htab->sgot->output_offset + off - got_base; |
| break; |
| |
| case R_SPARC_PLT32: |
| if (h == NULL || h->plt.offset == (bfd_vma) -1) |
| { |
| r_type = R_SPARC_32; |
| goto r_sparc_plt32; |
| } |
| /* Fall through. */ |
| case R_SPARC_WPLT30: |
| r_sparc_wplt30: |
| /* Relocation is to the entry for this symbol in the |
| procedure linkage table. */ |
| |
| /* The Solaris native assembler will generate a WPLT30 reloc |
| for a local symbol if you assemble a call from one |
| section to another when using -K pic. We treat it as |
| WDISP30. */ |
| if (h == NULL) |
| break; |
| |
| 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. */ |
| break; |
| } |
| |
| if (htab->splt == NULL) |
| abort (); |
| |
| relocation = (htab->splt->output_section->vma |
| + htab->splt->output_offset |
| + h->plt.offset); |
| unresolved_reloc = FALSE; |
| if (r_type == R_SPARC_PLT32) |
| { |
| r_type = R_SPARC_32; |
| is_plt = TRUE; |
| goto r_sparc_plt32; |
| } |
| break; |
| |
| case R_SPARC_PC10: |
| case R_SPARC_PC22: |
| 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_WDISP30: |
| case R_SPARC_WDISP22: |
| case R_SPARC_WDISP19: |
| case R_SPARC_WDISP16: |
| 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_UA16: |
| case R_SPARC_UA32: |
| r_sparc_plt32: |
| /* r_symndx will be zero only for relocs against symbols |
| from removed linkonce sections, or sections discarded by |
| a linker script. */ |
| if (r_symndx == 0 |
| || (input_section->flags & SEC_ALLOC) == 0) |
| break; |
| |
| if ((info->shared |
| && (! howto->pc_relative |
| || (h != NULL |
| && h->dynindx != -1 |
| && (! info->symbolic |
| || (h->elf_link_hash_flags |
| & ELF_LINK_HASH_DEF_REGULAR) == 0)))) |
| || (!info->shared |
| && h != NULL |
| && h->dynindx != -1 |
| && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 |
| && (((h->elf_link_hash_flags |
| & ELF_LINK_HASH_DEF_DYNAMIC) != 0 |
| && (h->elf_link_hash_flags |
| & ELF_LINK_HASH_DEF_REGULAR) == 0) |
| || h->root.type == bfd_link_hash_undefweak |
| || h->root.type == bfd_link_hash_undefined))) |
| { |
| Elf_Internal_Rela outrel; |
| bfd_byte *loc; |
| bfd_boolean skip, relocate = FALSE; |
| |
| /* When generating a shared object, these relocations |
| are copied into the output file to be resolved at run |
| time. */ |
| |
| BFD_ASSERT (sreloc != NULL); |
| |
| skip = 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_DISP8: |
| case R_SPARC_DISP16: |
| case R_SPARC_DISP32: |
| /* 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 = ELF32_R_INFO (h->dynindx, r_type); |
| outrel.r_addend = rel->r_addend; |
| } |
| else |
| { |
| if (r_type == R_SPARC_32) |
| { |
| outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); |
| outrel.r_addend = relocation + rel->r_addend; |
| } |
| else |
| { |
| long indx; |
| |
| if (is_plt) |
| sec = htab->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; |
| |
| /* 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 = ELF32_R_INFO (indx, r_type); |
| outrel.r_addend = relocation + rel->r_addend; |
| } |
| } |
| |
| loc = sreloc->contents; |
| loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); |
| bfd_elf32_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; |
| |
| case R_SPARC_TLS_GD_HI22: |
| if (! elf32_sparc_tdata (input_bfd)->has_tlsgd) |
| { |
| /* R_SPARC_REV32 used the same reloc number as |
| R_SPARC_TLS_GD_HI22. */ |
| r_type = R_SPARC_REV32; |
| break; |
| } |
| /* Fall through */ |
| |
| case R_SPARC_TLS_GD_LO10: |
| case R_SPARC_TLS_IE_HI22: |
| case R_SPARC_TLS_IE_LO10: |
| r_type = elf32_sparc_tls_transition (info, input_bfd, r_type, |
| h == NULL); |
| tls_type = GOT_UNKNOWN; |
| if (h == NULL && local_got_offsets) |
| tls_type = elf32_sparc_local_got_tls_type (input_bfd) [r_symndx]; |
| else if (h != NULL) |
| { |
| tls_type = elf32_sparc_hash_entry(h)->tls_type; |
| if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE) |
| switch (ELF32_R_TYPE (rel->r_info)) |
| { |
| case R_SPARC_TLS_GD_HI22: |
| case R_SPARC_TLS_IE_HI22: |
| r_type = R_SPARC_TLS_LE_HIX22; |
| break; |
| default: |
| r_type = R_SPARC_TLS_LE_LOX10; |
| break; |
| } |
| } |
| if (tls_type == GOT_TLS_IE) |
| switch (r_type) |
| { |
| case R_SPARC_TLS_GD_HI22: |
| r_type = R_SPARC_TLS_IE_HI22; |
| break; |
| case R_SPARC_TLS_GD_LO10: |
| r_type = R_SPARC_TLS_IE_LO10; |
| break; |
| } |
| |
| if (r_type == R_SPARC_TLS_LE_HIX22) |
| { |
| relocation = tpoff (info, relocation); |
| break; |
| } |
| if (r_type == R_SPARC_TLS_LE_LOX10) |
| { |
| /* Change add into xor. */ |
| relocation = tpoff (info, relocation); |
| bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd, |
| contents + rel->r_offset) |
| | 0x80182000), contents + rel->r_offset); |
| break; |
| } |
| |
| if (h != NULL) |
| { |
| off = h->got.offset; |
| h->got.offset |= 1; |
| } |
| else |
| { |
| BFD_ASSERT (local_got_offsets != NULL); |
| off = local_got_offsets[r_symndx]; |
| local_got_offsets[r_symndx] |= 1; |
| } |
| |
| r_sparc_tlsldm: |
| if (htab->sgot == NULL) |
| abort (); |
| |
| if ((off & 1) != 0) |
| off &= ~1; |
| else |
| { |
| Elf_Internal_Rela outrel; |
| Elf32_External_Rela *loc; |
| int dr_type, indx; |
| |
| if (htab->srelgot == NULL) |
| abort (); |
| |
| bfd_put_32 (output_bfd, 0, htab->sgot->contents + off); |
| outrel.r_offset = (htab->sgot->output_section->vma |
| + htab->sgot->output_offset + off); |
| indx = h && h->dynindx != -1 ? h->dynindx : 0; |
| if (r_type == R_SPARC_TLS_IE_HI22 |
| || r_type == R_SPARC_TLS_IE_LO10) |
| dr_type = R_SPARC_TLS_TPOFF32; |
| else |
| dr_type = R_SPARC_TLS_DTPMOD32; |
| if (dr_type == R_SPARC_TLS_TPOFF32 && indx == 0) |
| outrel.r_addend = relocation - dtpoff_base (info); |
| else |
| outrel.r_addend = 0; |
| outrel.r_info = ELF32_R_INFO (indx, dr_type); |
| loc = (Elf32_External_Rela *) htab->srelgot->contents; |
| loc += htab->srelgot->reloc_count++; |
| bfd_elf32_swap_reloca_out (output_bfd, &outrel, |
| (bfd_byte *) loc); |
| |
| if (r_type == R_SPARC_TLS_GD_HI22 |
| || r_type == R_SPARC_TLS_GD_LO10) |
| { |
| if (indx == 0) |
| { |
| BFD_ASSERT (! unresolved_reloc); |
| bfd_put_32 (output_bfd, |
| relocation - dtpoff_base (info), |
| htab->sgot->contents + off + 4); |
| } |
| else |
| { |
| bfd_put_32 (output_bfd, 0, |
| htab->sgot->contents + off + 4); |
| outrel.r_info = ELF32_R_INFO (indx, |
| R_SPARC_TLS_DTPOFF32); |
| outrel.r_offset += 4; |
| htab->srelgot->reloc_count++; |
| loc++; |
| bfd_elf32_swap_reloca_out (output_bfd, &outrel, |
| (bfd_byte *) loc); |
| } |
| } |
| else if (dr_type == R_SPARC_TLS_DTPMOD32) |
| { |
| bfd_put_32 (output_bfd, 0, |
| htab->sgot->contents + off + 4); |
| } |
| } |
| |
| if (off >= (bfd_vma) -2) |
| abort (); |
| |
| relocation = htab->sgot->output_offset + off - got_base; |
| unresolved_reloc = FALSE; |
| howto = _bfd_sparc_elf_howto_table + r_type; |
| break; |
| |
| case R_SPARC_TLS_LDM_HI22: |
| case R_SPARC_TLS_LDM_LO10: |
| if (! info->shared) |
| { |
| bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); |
| continue; |
| } |
| off = htab->tls_ldm_got.offset; |
| htab->tls_ldm_got.offset |= 1; |
| goto r_sparc_tlsldm; |
| |
| case R_SPARC_TLS_LDO_HIX22: |
| case R_SPARC_TLS_LDO_LOX10: |
| if (info->shared) |
| relocation -= dtpoff_base (info); |
| else |
| relocation = tpoff (info, relocation); |
| break; |
| |
| case R_SPARC_TLS_LE_HIX22: |
| case R_SPARC_TLS_LE_LOX10: |
| if (info->shared) |
| { |
| Elf_Internal_Rela outrel; |
| bfd_boolean skip, relocate = FALSE; |
| |
| BFD_ASSERT (sreloc != NULL); |
| skip = 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); |
| if (skip) |
| memset (&outrel, 0, sizeof outrel); |
| else |
| { |
| outrel.r_info = ELF32_R_INFO (0, r_type); |
| outrel.r_addend = relocation - dtpoff_base (info) |
| + rel->r_addend; |
| } |
| |
| bfd_elf32_swap_reloca_out (output_bfd, &outrel, |
| (bfd_byte *) (((Elf32_External_Rela *) |
| sreloc->contents) |
| + sreloc->reloc_count)); |
| ++sreloc->reloc_count; |
| continue; |
| } |
| relocation = tpoff (info, relocation); |
| break; |
| |
| case R_SPARC_TLS_LDM_CALL: |
| if (! info->shared) |
| { |
| /* mov %g0, %o0 */ |
| bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset); |
| continue; |
| } |
| /* Fall through */ |
| |
| case R_SPARC_TLS_GD_CALL: |
| tls_type = GOT_UNKNOWN; |
| if (h == NULL && local_got_offsets) |
| tls_type = elf32_sparc_local_got_tls_type (input_bfd) [r_symndx]; |
| else if (h != NULL) |
| tls_type = elf32_sparc_hash_entry(h)->tls_type; |
| if (! info->shared |
| || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE)) |
| { |
| bfd_vma insn; |
| |
| if (!info->shared && (h == NULL || h->dynindx == -1)) |
| { |
| /* GD -> LE */ |
| bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); |
| continue; |
| } |
| |
| /* GD -> IE */ |
| if (rel + 1 < relend |
| && ELF32_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD |
| && rel[1].r_offset == rel->r_offset + 4 |
| && ELF32_R_SYM (rel[1].r_info) == r_symndx |
| && (((insn = bfd_get_32 (input_bfd, |
| contents + rel[1].r_offset)) |
| >> 25) & 0x1f) == 8) |
| { |
| /* We have |
| call __tls_get_addr, %tgd_call(foo) |
| add %reg1, %reg2, %o0, %tgd_add(foo) |
| and change it into IE: |
| ld [%reg1 + %reg2], %o0, %tie_ld(foo) |
| add %g7, %o0, %o0, %tie_add(foo). |
| add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2, |
| ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2. */ |
| bfd_put_32 (output_bfd, insn | 0xc0000000, |
| contents + rel->r_offset); |
| bfd_put_32 (output_bfd, 0x9001c008, |
| contents + rel->r_offset + 4); |
| rel++; |
| continue; |
| } |
| |
| bfd_put_32 (output_bfd, 0x9001c008, contents + rel->r_offset); |
| continue; |
| } |
| |
| h = (struct elf_link_hash_entry *) |
| bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE, |
| FALSE, TRUE); |
| BFD_ASSERT (h != NULL); |
| r_type = R_SPARC_WPLT30; |
| howto = _bfd_sparc_elf_howto_table + r_type; |
| goto r_sparc_wplt30; |
| |
| case R_SPARC_TLS_GD_ADD: |
| tls_type = GOT_UNKNOWN; |
| if (h == NULL && local_got_offsets) |
| tls_type = elf32_sparc_local_got_tls_type (input_bfd) [r_symndx]; |
| else if (h != NULL) |
| tls_type = elf32_sparc_hash_entry(h)->tls_type; |
| if (! info->shared || tls_type == GOT_TLS_IE) |
| { |
| /* add %reg1, %reg2, %reg3, %tgd_add(foo) |
| changed into IE: |
| ld [%reg1 + %reg2], %reg3, %tie_ld(foo) |
| or LE: |
| add %g7, %reg2, %reg3. */ |
| bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| if ((h != NULL && h->dynindx != -1) || info->shared) |
| relocation = insn | 0xc0000000; |
| else |
| relocation = (insn & ~0x7c000) | 0x1c000; |
| bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); |
| } |
| continue; |
| |
| case R_SPARC_TLS_LDM_ADD: |
| if (! info->shared) |
| bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); |
| continue; |
| |
| case R_SPARC_TLS_LDO_ADD: |
| if (! info->shared) |
| { |
| /* Change rs1 into %g7. */ |
| bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| insn = (insn & ~0x7c000) | 0x1c000; |
| bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
| } |
| continue; |
| |
| case R_SPARC_TLS_IE_LD: |
| case R_SPARC_TLS_IE_LDX: |
| if (! info->shared && (h == NULL || h->dynindx == -1)) |
| { |
| bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| int rs2 = insn & 0x1f; |
| int rd = (insn >> 25) & 0x1f; |
| |
| if (rs2 == rd) |
| relocation = SPARC_NOP; |
| else |
| relocation = 0x80100000 | (insn & 0x3e00001f); |
| bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); |
| } |
| continue; |
| |
| case R_SPARC_TLS_IE_ADD: |
| /* Totally useless relocation. */ |
| continue; |
| |
| case R_SPARC_TLS_DTPOFF32: |
| relocation -= dtpoff_base (info); |
| break; |
| |
| default: |
| 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); |
| |
| r = bfd_reloc_continue; |
| if (r_type == R_SPARC_WDISP16) |
| { |
| 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; |
| } |
| else if (r_type == R_SPARC_REV32) |
| { |
| bfd_vma x; |
| |
| relocation = relocation + rel->r_addend; |
| |
| x = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| x = x + relocation; |
| bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset); |
| r = bfd_reloc_ok; |
| } |
| else if (r_type == R_SPARC_TLS_LDO_HIX22 |
| || r_type == R_SPARC_TLS_LE_HIX22) |
| { |
| bfd_vma x; |
| |
| relocation += rel->r_addend; |
| relocation = relocation ^ 0xffffffff; |
| |
| 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_reloc_ok; |
| } |
| else if (r_type == R_SPARC_TLS_LDO_LOX10 |
| || r_type == R_SPARC_TLS_LE_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; |
| } |
| else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30) |
| && 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); |
| |
| /* Ensure the reloc fits into simm22. */ |
| if ((reloc & 3) == 0 |
| && ((reloc & ~(bfd_vma)0x7fffff) == 0 |
| || ((reloc | 0x7fffff) == ~(bfd_vma)0))) |
| { |
| reloc >>= 2; |
| |
| /* Check whether it fits into simm19 on v9. */ |
| if (((reloc & 0x3c0000) == 0 |
| || (reloc & 0x3c0000) == 0x3c0000) |
| && (elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS)) |
| 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); |
| } |
| |
| } |
| } |
| } |
| } |
| |
| if (r == bfd_reloc_continue) |
| r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
| contents, rel->r_offset, |
| relocation, rel->r_addend); |
| |
| if (r != bfd_reloc_ok) |
| { |
| switch (r) |
| { |
| default: |
| case bfd_reloc_outofrange: |
| abort (); |
| case bfd_reloc_overflow: |
| { |
| const char *name; |
| |
| 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; |
| } |
| } |
| } |
| |
| return TRUE; |
| } |
| |
| /* Finish up dynamic symbol handling. We set the contents of various |
| dynamic sections here. */ |
| |
| static bfd_boolean |
| elf32_sparc_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; |
| struct elf32_sparc_link_hash_table *htab; |
| |
| htab = elf32_sparc_hash_table (info); |
| dynobj = htab->elf.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 procedure linkage table. Set |
| it up. */ |
| |
| BFD_ASSERT (h->dynindx != -1); |
| |
| splt = htab->splt; |
| srela = htab->srelplt; |
| BFD_ASSERT (splt != NULL && srela != NULL); |
| |
| /* Fill in the entry in the procedure linkage table. */ |
| bfd_put_32 (output_bfd, |
| PLT_ENTRY_WORD0 + h->plt.offset, |
| splt->contents + h->plt.offset); |
| bfd_put_32 (output_bfd, |
| (PLT_ENTRY_WORD1 |
| + (((- (h->plt.offset + 4)) >> 2) & 0x3fffff)), |
| splt->contents + h->plt.offset + 4); |
| bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2, |
| splt->contents + h->plt.offset + 8); |
| |
| /* Fill in the entry in the .rela.plt section. */ |
| rela.r_offset = (splt->output_section->vma |
| + splt->output_offset |
| + h->plt.offset); |
| rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_JMP_SLOT); |
| rela.r_addend = 0; |
| loc = srela->contents; |
| loc += (h->plt.offset / PLT_ENTRY_SIZE - 4) * sizeof (Elf32_External_Rela); |
| bfd_elf32_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 |
| && elf32_sparc_hash_entry(h)->tls_type != GOT_TLS_GD |
| && elf32_sparc_hash_entry(h)->tls_type != GOT_TLS_IE) |
| { |
| asection *sgot; |
| asection *srela; |
| Elf_Internal_Rela rela; |
| bfd_byte *loc; |
| |
| /* This symbol has an entry in the global offset table. Set it |
| up. */ |
| |
| sgot = htab->sgot; |
| srela = htab->srelgot; |
| 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 = ELF32_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 = ELF32_R_INFO (h->dynindx, R_SPARC_GLOB_DAT); |
| rela.r_addend = 0; |
| } |
| |
| bfd_put_32 (output_bfd, (bfd_vma) 0, |
| sgot->contents + (h->got.offset &~ (bfd_vma) 1)); |
| loc = srela->contents; |
| loc += srela->reloc_count++ * sizeof (Elf32_External_Rela); |
| bfd_elf32_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 = ELF32_R_INFO (h->dynindx, R_SPARC_COPY); |
| rela.r_addend = 0; |
| loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); |
| bfd_elf32_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 |
| elf32_sparc_finish_dynamic_sections (output_bfd, info) |
| bfd *output_bfd; |
| struct bfd_link_info *info; |
| { |
| bfd *dynobj; |
| asection *sdyn; |
| struct elf32_sparc_link_hash_table *htab; |
| |
| htab = elf32_sparc_hash_table (info); |
| dynobj = htab->elf.dynobj; |
| |
| sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
| |
| if (elf_hash_table (info)->dynamic_sections_created) |
| { |
| asection *splt; |
| Elf32_External_Dyn *dyncon, *dynconend; |
| |
| splt = bfd_get_section_by_name (dynobj, ".plt"); |
| BFD_ASSERT (splt != NULL && sdyn != NULL); |
| |
| dyncon = (Elf32_External_Dyn *) sdyn->contents; |
| dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); |
| for (; dyncon < dynconend; dyncon++) |
| { |
| Elf_Internal_Dyn dyn; |
| const char *name; |
| bfd_boolean size; |
| |
| bfd_elf32_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; |
| 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_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
| } |
| } |
| |
| /* Clear the first four entries in the procedure linkage table, |
| and put a nop in the last four bytes. */ |
| if (splt->_raw_size > 0) |
| { |
| memset (splt->contents, 0, 4 * PLT_ENTRY_SIZE); |
| bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, |
| splt->contents + splt->_raw_size - 4); |
| } |
| |
| 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. */ |
| if (htab->sgot && htab->sgot->_raw_size > 0) |
| { |
| if (sdyn == NULL) |
| bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgot->contents); |
| else |
| bfd_put_32 (output_bfd, |
| sdyn->output_section->vma + sdyn->output_offset, |
| htab->sgot->contents); |
| } |
| |
| if (htab->sgot) |
| elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize = 4; |
| |
| return TRUE; |
| } |
| |
| /* Functions for dealing with the e_flags field. |
| |
| We don't define set_private_flags or copy_private_bfd_data because |
| the only currently defined values are based on the bfd mach number, |
| so we use the latter instead and defer setting e_flags until the |
| file is written out. */ |
| |
| /* Merge backend specific data from an object file to the output |
| object file when linking. */ |
| |
| static bfd_boolean |
| elf32_sparc_merge_private_bfd_data (ibfd, obfd) |
| bfd *ibfd; |
| bfd *obfd; |
| { |
| bfd_boolean error; |
| /* FIXME: This should not be static. */ |
| static unsigned long previous_ibfd_e_flags = (unsigned long) -1; |
| |
| if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
| || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
| return TRUE; |
| |
| error = FALSE; |
| |
| if (bfd_get_mach (ibfd) >= bfd_mach_sparc_v9) |
| { |
| error = TRUE; |
| (*_bfd_error_handler) |
| (_("%s: compiled for a 64 bit system and target is 32 bit"), |
| bfd_archive_filename (ibfd)); |
| } |
| else if ((ibfd->flags & DYNAMIC) == 0) |
| { |
| if (bfd_get_mach (obfd) < bfd_get_mach (ibfd)) |
| bfd_set_arch_mach (obfd, bfd_arch_sparc, bfd_get_mach (ibfd)); |
| } |
| |
| if (((elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA) |
| != previous_ibfd_e_flags) |
| && previous_ibfd_e_flags != (unsigned long) -1) |
| { |
| (*_bfd_error_handler) |
| (_("%s: linking little endian files with big endian files"), |
| bfd_archive_filename (ibfd)); |
| error = TRUE; |
| } |
| previous_ibfd_e_flags = elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA; |
| |
| if (error) |
| { |
| bfd_set_error (bfd_error_bad_value); |
| return FALSE; |
| } |
| |
| return TRUE; |
| } |
| |
| /* Set the right machine number. */ |
| |
| static bfd_boolean |
| elf32_sparc_object_p (abfd) |
| bfd *abfd; |
| { |
| /* Allocate our special target data. */ |
| struct elf32_sparc_obj_tdata *new_tdata; |
| bfd_size_type amt = sizeof (struct elf32_sparc_obj_tdata); |
| new_tdata = bfd_zalloc (abfd, amt); |
| if (new_tdata == NULL) |
| return FALSE; |
| new_tdata->root = *abfd->tdata.elf_obj_data; |
| abfd->tdata.any = new_tdata; |
| |
| if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS) |
| { |
| if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3) |
| return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, |
| bfd_mach_sparc_v8plusb); |
| else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1) |
| return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, |
| bfd_mach_sparc_v8plusa); |
| else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS) |
| return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, |
| bfd_mach_sparc_v8plus); |
| else |
| return FALSE; |
| } |
| else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA) |
| return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, |
| bfd_mach_sparc_sparclite_le); |
| else |
| return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc); |
| } |
| |
| /* The final processing done just before writing out the object file. |
| We need to set the e_machine field appropriately. */ |
| |
| static void |
| elf32_sparc_final_write_processing (abfd, linker) |
| bfd *abfd; |
| bfd_boolean linker ATTRIBUTE_UNUSED; |
| { |
| switch (bfd_get_mach (abfd)) |
| { |
| case bfd_mach_sparc : |
| break; /* nothing to do */ |
| case bfd_mach_sparc_v8plus : |
| elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS; |
| elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK; |
| elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS; |
| break; |
| case bfd_mach_sparc_v8plusa : |
| elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS; |
| elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK; |
| elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS | EF_SPARC_SUN_US1; |
| break; |
| case bfd_mach_sparc_v8plusb : |
| elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS; |
| elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK; |
| elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS | EF_SPARC_SUN_US1 |
| | EF_SPARC_SUN_US3; |
| break; |
| case bfd_mach_sparc_sparclite_le : |
| elf_elfheader (abfd)->e_machine = EM_SPARC; |
| elf_elfheader (abfd)->e_flags |= EF_SPARC_LEDATA; |
| break; |
| default : |
| abort (); |
| break; |
| } |
| } |
| |
| static enum elf_reloc_type_class |
| elf32_sparc_reloc_type_class (rela) |
| const Elf_Internal_Rela *rela; |
| { |
| switch ((int) ELF32_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; |
| } |
| } |
| |
| #define TARGET_BIG_SYM bfd_elf32_sparc_vec |
| #define TARGET_BIG_NAME "elf32-sparc" |
| #define ELF_ARCH bfd_arch_sparc |
| #define ELF_MACHINE_CODE EM_SPARC |
| #define ELF_MACHINE_ALT1 EM_SPARC32PLUS |
| #define ELF_MAXPAGESIZE 0x10000 |
| |
| #define bfd_elf32_bfd_reloc_type_lookup elf32_sparc_reloc_type_lookup |
| #define bfd_elf32_bfd_link_hash_table_create \ |
| elf32_sparc_link_hash_table_create |
| #define bfd_elf32_bfd_relax_section elf32_sparc_relax_section |
| #define bfd_elf32_new_section_hook elf32_sparc_new_section_hook |
| #define elf_info_to_howto elf32_sparc_info_to_howto |
| #define elf_backend_copy_indirect_symbol \ |
| elf32_sparc_copy_indirect_symbol |
| #define elf_backend_create_dynamic_sections \ |
| elf32_sparc_create_dynamic_sections |
| #define elf_backend_check_relocs elf32_sparc_check_relocs |
| #define elf_backend_adjust_dynamic_symbol \ |
| elf32_sparc_adjust_dynamic_symbol |
| #define elf_backend_size_dynamic_sections \ |
| elf32_sparc_size_dynamic_sections |
| #define elf_backend_relocate_section elf32_sparc_relocate_section |
| #define elf_backend_finish_dynamic_symbol \ |
| elf32_sparc_finish_dynamic_symbol |
| #define elf_backend_finish_dynamic_sections \ |
| elf32_sparc_finish_dynamic_sections |
| #define bfd_elf32_bfd_merge_private_bfd_data \ |
| elf32_sparc_merge_private_bfd_data |
| #define bfd_elf32_mkobject elf32_sparc_mkobject |
| #define elf_backend_object_p elf32_sparc_object_p |
| #define elf_backend_final_write_processing \ |
| elf32_sparc_final_write_processing |
| #define elf_backend_gc_mark_hook elf32_sparc_gc_mark_hook |
| #define elf_backend_gc_sweep_hook elf32_sparc_gc_sweep_hook |
| #define elf_backend_reloc_type_class elf32_sparc_reloc_type_class |
| |
| #define elf_backend_can_gc_sections 1 |
| #define elf_backend_can_refcount 1 |
| #define elf_backend_want_got_plt 0 |
| #define elf_backend_plt_readonly 0 |
| #define elf_backend_want_plt_sym 1 |
| #define elf_backend_got_header_size 4 |
| #define elf_backend_plt_header_size (4*PLT_ENTRY_SIZE) |
| #define elf_backend_rela_normal 1 |
| |
| #include "elf32-target.h" |