diff options
Diffstat (limited to 'contrib/binutils/bfd/elf32-sparc.c')
| -rw-r--r-- | contrib/binutils/bfd/elf32-sparc.c | 3479 |
1 files changed, 3479 insertions, 0 deletions
diff --git a/contrib/binutils/bfd/elf32-sparc.c b/contrib/binutils/bfd/elf32-sparc.c new file mode 100644 index 0000000..0f94f5f --- /dev/null +++ b/contrib/binutils/bfd/elf32-sparc.c @@ -0,0 +1,3479 @@ +/* SPARC-specific support for 32-bit ELF + Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, + 2003, 2004 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 ((const 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; +} + +/* Support for core dump NOTE sections. */ + +static bfd_boolean +elf32_sparc_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) +{ + switch (note->descsz) + { + default: + return FALSE; + + case 260: /* Solaris prpsinfo_t. */ + elf_tdata (abfd)->core_program + = _bfd_elfcore_strndup (abfd, note->descdata + 84, 16); + elf_tdata (abfd)->core_command + = _bfd_elfcore_strndup (abfd, note->descdata + 100, 80); + break; + + case 336: /* Solaris psinfo_t. */ + elf_tdata (abfd)->core_program + = _bfd_elfcore_strndup (abfd, note->descdata + 88, 16); + elf_tdata (abfd)->core_command + = _bfd_elfcore_strndup (abfd, note->descdata + 104, 80); + break; + } + + return TRUE; +} + + +/* 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) + const 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->relocatable) + 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->sgot == NULL) + { + 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_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) + return FALSE; + break; + + case R_SPARC_GNU_VTENTRY: + if (!bfd_elf_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; +} + +/* 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_elf_link_record_dynamic_symbol (info, h)) + return FALSE; + } + + if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, 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_elf_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->shared, 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_elf_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->executable) + { + s = bfd_get_section_by_name (dynobj, ".interp"); + BFD_ASSERT (s != NULL); + s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; + s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; + } + } + + /* 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_elf_add_dynamic_entry (info, TAG, VAL) + + if (info->executable) + { + 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_sec is NULL, we should have signalled an error already. */ + if (elf_hash_table (info)->tls_sec == NULL) + return 0; + return elf_hash_table (info)->tls_sec->vma; +} + +/* 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_hash_table *htab = elf_hash_table (info); + + /* If tls_sec is NULL, we should have signalled an error already. */ + if (htab->tls_sec == NULL) + return 0; + return address - htab->tls_size - htab->tls_sec->vma; +} + +/* 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->relocatable) + 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 + { + bfd_boolean warned ATTRIBUTE_UNUSED; + + RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, + r_symndx, symtab_hdr, sym_hashes, + h, sec, relocation, + unresolved_reloc, warned); + } + + 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->shared, 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 || htab->splt == NULL) + { + /* We didn't make a PLT entry for this symbol. This + happens when statically linking PIC code, or when + using -Bsymbolic. */ + break; + } + + 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; + + if (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 = 0; + } + + /* 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; +{ + 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_grok_psinfo elf32_sparc_grok_psinfo +#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_rela_normal 1 + +#include "elf32-target.h" |
