X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Felf32-sparc.c;h=43a3e2320ceec7a0306c215960453e9abd09ae81;hb=64517994807b0d6bb3c6fd106f117c03242fac72;hp=f759881276715987f7f94d6dc1c2caca766ddb09;hpb=5bc513b4fb70c1c265bd49b314dbe1f062797702;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/elf32-sparc.c b/bfd/elf32-sparc.c index f759881276..283f0439c4 100644 --- a/bfd/elf32-sparc.c +++ b/bfd/elf32-sparc.c @@ -1,1672 +1,359 @@ /* SPARC-specific support for 32-bit ELF - Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc. + Copyright (C) 1993-2017 Free Software Foundation, Inc. -This file is part of BFD, the Binary File Descriptor library. + This file is part of BFD, the Binary File Descriptor library. -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. + 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. */ + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ -#include "bfd.h" #include "sysdep.h" +#include "bfd.h" #include "bfdlink.h" #include "libbfd.h" #include "elf-bfd.h" -/* start-sanitize-v8plus */ #include "elf/sparc.h" -/* end-sanitize-v8plus */ - -static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup - PARAMS ((bfd *, bfd_reloc_code_real_type)); -static void elf_info_to_howto - PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); -static boolean elf32_sparc_check_relocs - PARAMS ((bfd *, struct bfd_link_info *, asection *, - const Elf_Internal_Rela *)); -static boolean elf32_sparc_adjust_dynamic_symbol - PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); -static boolean elf32_sparc_adjust_dynindx - PARAMS ((struct elf_link_hash_entry *, PTR)); -static boolean elf32_sparc_size_dynamic_sections - PARAMS ((bfd *, struct bfd_link_info *)); -static boolean elf32_sparc_relocate_section - PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, - Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); -static boolean elf32_sparc_finish_dynamic_symbol - PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, - Elf_Internal_Sym *)); -static boolean elf32_sparc_finish_dynamic_sections - PARAMS ((bfd *, struct bfd_link_info *)); -/* start-sanitize-v8plus */ -static boolean elf32_sparc_set_private_flags PARAMS ((bfd *, flagword)); -static boolean elf32_sparc_copy_private_bfd_data PARAMS ((bfd *, bfd *)); -static boolean elf32_sparc_merge_private_bfd_data PARAMS ((bfd *, bfd *)); -static boolean elf32_sparc_object_p - PARAMS ((bfd *)); -static void elf32_sparc_final_write_processing - PARAMS ((bfd *, boolean)); -/* end-sanitize-v8plus */ - -enum reloc_type - { - R_SPARC_NONE = 0, - R_SPARC_8, R_SPARC_16, R_SPARC_32, - R_SPARC_DISP8, R_SPARC_DISP16, R_SPARC_DISP32, - R_SPARC_WDISP30, R_SPARC_WDISP22, - R_SPARC_HI22, R_SPARC_22, - R_SPARC_13, R_SPARC_LO10, - R_SPARC_GOT10, R_SPARC_GOT13, R_SPARC_GOT22, - R_SPARC_PC10, R_SPARC_PC22, - R_SPARC_WPLT30, - R_SPARC_COPY, - R_SPARC_GLOB_DAT, R_SPARC_JMP_SLOT, - R_SPARC_RELATIVE, - R_SPARC_UA32, - R_SPARC_max - }; - -#if 0 -static CONST char *CONST reloc_type_names[] = -{ - "R_SPARC_NONE", - "R_SPARC_8", "R_SPARC_16", "R_SPARC_32", - "R_SPARC_DISP8", "R_SPARC_DISP16", "R_SPARC_DISP32", - "R_SPARC_WDISP30", "R_SPARC_WDISP22", - "R_SPARC_HI22", "R_SPARC_22", - "R_SPARC_13", "R_SPARC_LO10", - "R_SPARC_GOT10", "R_SPARC_GOT13", "R_SPARC_GOT22", - "R_SPARC_PC10", "R_SPARC_PC22", - "R_SPARC_WPLT30", - "R_SPARC_COPY", - "R_SPARC_GLOB_DAT", "R_SPARC_JMP_SLOT", - "R_SPARC_RELATIVE", - "R_SPARC_UA32", -}; -#endif - -static reloc_howto_type elf_sparc_howto_table[] = -{ - HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_NONE", false,0,0x00000000,true), - HOWTO(R_SPARC_8, 0,0, 8,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_8", false,0,0x000000ff,true), - HOWTO(R_SPARC_16, 0,1,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_16", false,0,0x0000ffff,true), - HOWTO(R_SPARC_32, 0,2,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_32", false,0,0xffffffff,true), - HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,complain_overflow_signed, bfd_elf_generic_reloc,"R_SPARC_DISP8", false,0,0x000000ff,true), - HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,complain_overflow_signed, bfd_elf_generic_reloc,"R_SPARC_DISP16", false,0,0x0000ffff,true), - HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,complain_overflow_signed, bfd_elf_generic_reloc,"R_SPARC_DISP32", false,0,0x00ffffff,true), - HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc,"R_SPARC_WDISP30", false,0,0x3fffffff,true), - HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed, bfd_elf_generic_reloc,"R_SPARC_WDISP22", false,0,0x003fffff,true), - HOWTO(R_SPARC_HI22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_HI22", false,0,0x003fffff,true), - HOWTO(R_SPARC_22, 0,2,22,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_22", false,0,0x003fffff,true), - HOWTO(R_SPARC_13, 0,2,13,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_13", false,0,0x00001fff,true), - HOWTO(R_SPARC_LO10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_LO10", false,0,0x000003ff,true), - HOWTO(R_SPARC_GOT10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_GOT10", false,0,0x000003ff,true), - HOWTO(R_SPARC_GOT13, 0,2,13,false,0,complain_overflow_signed, bfd_elf_generic_reloc,"R_SPARC_GOT13", false,0,0x00001fff,true), - HOWTO(R_SPARC_GOT22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_GOT22", false,0,0x003fffff,true), - HOWTO(R_SPARC_PC10, 0,2,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_PC10", false,0,0x000003ff,true), - HOWTO(R_SPARC_PC22, 10,2,22,true, 0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_PC22", false,0,0x003fffff,true), - HOWTO(R_SPARC_WPLT30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc,"R_SPARC_WPLT30", false,0,0x3fffffff,true), - HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_COPY", false,0,0x00000000,true), - HOWTO(R_SPARC_GLOB_DAT,0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_GLOB_DAT",false,0,0x00000000,true), - HOWTO(R_SPARC_JMP_SLOT,0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_JMP_SLOT",false,0,0x00000000,true), - HOWTO(R_SPARC_RELATIVE,0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_RELATIVE",false,0,0x00000000,true), - HOWTO(R_SPARC_UA32, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_UA32", false,0,0x00000000,true), -}; +#include "opcode/sparc.h" +#include "elfxx-sparc.h" +#include "elf-vxworks.h" -struct elf_reloc_map { - unsigned char bfd_reloc_val; - unsigned char elf_reloc_val; -}; - -static CONST struct elf_reloc_map sparc_reloc_map[] = -{ - { BFD_RELOC_NONE, R_SPARC_NONE, }, - { BFD_RELOC_16, R_SPARC_16, }, - { BFD_RELOC_8, R_SPARC_8 }, - { BFD_RELOC_8_PCREL, R_SPARC_DISP8 }, - { BFD_RELOC_CTOR, R_SPARC_32 }, /* @@ Assumes 32 bits. */ - { BFD_RELOC_32, R_SPARC_32 }, - { BFD_RELOC_32_PCREL, R_SPARC_DISP32 }, - { BFD_RELOC_HI22, R_SPARC_HI22 }, - { BFD_RELOC_LO10, R_SPARC_LO10, }, - { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 }, - { BFD_RELOC_SPARC22, R_SPARC_22 }, - { BFD_RELOC_SPARC13, R_SPARC_13 }, - { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 }, - { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 }, - { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 }, - { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 }, - { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 }, - { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 }, - { BFD_RELOC_SPARC_COPY, R_SPARC_COPY }, - { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT }, - { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT }, - { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE }, - { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 }, -/*{ BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */ -}; +/* Support for core dump NOTE sections. */ -static reloc_howto_type * -bfd_elf32_bfd_reloc_type_lookup (abfd, code) - bfd *abfd; - bfd_reloc_code_real_type code; +static bfd_boolean +elf32_sparc_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) { - unsigned int i; - for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++) + switch (note->descsz) { - if (sparc_reloc_map[i].bfd_reloc_val == code) - return &elf_sparc_howto_table[(int) sparc_reloc_map[i].elf_reloc_val]; + 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 0; -} -static void -elf_info_to_howto (abfd, cache_ptr, dst) - bfd *abfd; - arelent *cache_ptr; - Elf_Internal_Rela *dst; -{ - BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_SPARC_max); - cache_ptr->howto = &elf_sparc_howto_table[ELF32_R_TYPE(dst->r_info)]; + 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 - -/* Look through the relocs for a section during the first phase, and - allocate space in the global offset table or procedure linkage - table. */ - -static boolean -elf32_sparc_check_relocs (abfd, info, sec, relocs) - bfd *abfd; - struct bfd_link_info *info; - asection *sec; - const Elf_Internal_Rela *relocs; -{ - bfd *dynobj; - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - bfd_vma *local_got_offsets; - const Elf_Internal_Rela *rel; - const Elf_Internal_Rela *rel_end; - asection *sgot; - asection *srelgot; - asection *sreloc; - - if (info->relocateable) - return true; - - dynobj = elf_hash_table (info)->dynobj; - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (abfd); - local_got_offsets = elf_local_got_offsets (abfd); - - sgot = NULL; - srelgot = NULL; - sreloc = NULL; - - rel_end = relocs + sec->reloc_count; - for (rel = relocs; rel < rel_end; rel++) - { - unsigned long r_symndx; - struct elf_link_hash_entry *h; - - r_symndx = ELF32_R_SYM (rel->r_info); - if (r_symndx < symtab_hdr->sh_info) - h = NULL; - else - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - - switch (ELF32_R_TYPE (rel->r_info)) - { - case R_SPARC_GOT10: - case R_SPARC_GOT13: - case R_SPARC_GOT22: - /* This symbol requires a global offset table entry. */ - - if (dynobj == NULL) - { - /* Create the .got section. */ - elf_hash_table (info)->dynobj = dynobj = abfd; - if (! _bfd_elf_create_got_section (dynobj, info)) - return false; - } - - if (sgot == NULL) - { - sgot = bfd_get_section_by_name (dynobj, ".got"); - BFD_ASSERT (sgot != NULL); - } - - if (srelgot == NULL - && (h != NULL || info->shared)) - { - srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); - if (srelgot == NULL) - { - srelgot = bfd_make_section (dynobj, ".rela.got"); - if (srelgot == NULL - || ! bfd_set_section_flags (dynobj, srelgot, - (SEC_ALLOC - | SEC_LOAD - | SEC_HAS_CONTENTS - | SEC_IN_MEMORY - | SEC_READONLY)) - || ! bfd_set_section_alignment (dynobj, srelgot, 2)) - return false; - } - } - - if (h != NULL) - { - if (h->got_offset != (bfd_vma) -1) - { - /* We have already allocated space in the .got. */ - break; - } - h->got_offset = sgot->_raw_size; - - /* Make sure this symbol is output as a dynamic symbol. */ - if (h->dynindx == -1) - { - if (! bfd_elf32_link_record_dynamic_symbol (info, h)) - return false; - } - - srelgot->_raw_size += sizeof (Elf32_External_Rela); - } - else - { - /* This is a global offset table entry for a local - symbol. */ - if (local_got_offsets == NULL) - { - size_t size; - register unsigned int i; +/* Functions for dealing with the e_flags field. - size = symtab_hdr->sh_info * sizeof (bfd_vma); - local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size); - if (local_got_offsets == NULL) - return false; - elf_local_got_offsets (abfd) = local_got_offsets; - for (i = 0; i < symtab_hdr->sh_info; i++) - local_got_offsets[i] = (bfd_vma) -1; - } - if (local_got_offsets[r_symndx] != (bfd_vma) -1) - { - /* We have already allocated space in the .got. */ - break; - } - local_got_offsets[r_symndx] = sgot->_raw_size; + 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. */ - if (info->shared) - { - /* If we are generating a shared object, we need to - output a R_SPARC_RELATIVE reloc so that the - dynamic linker can adjust this GOT entry. */ - srelgot->_raw_size += sizeof (Elf32_External_Rela); - } - } - - sgot->_raw_size += 4; - - break; - - 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) - { - /* It does not make sense to have a procedure linkage - table entry for a local symbol. */ - bfd_set_error (bfd_error_bad_value); - return false; - } - - /* Make sure this symbol is output as a dynamic symbol. */ - if (h->dynindx == -1) - { - if (! bfd_elf32_link_record_dynamic_symbol (info, h)) - return false; - } - - h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; - - break; - - case R_SPARC_PC10: - case R_SPARC_PC22: - 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: - if (h == NULL) - break; - /* Fall through. */ - case R_SPARC_8: - case R_SPARC_16: - case R_SPARC_32: - case R_SPARC_HI22: - case R_SPARC_22: - case R_SPARC_13: - case R_SPARC_LO10: - case R_SPARC_UA32: - if (info->shared - && (sec->flags & SEC_ALLOC) != 0) - { - /* 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; - - name = (bfd_elf_string_from_elf_section - (abfd, - elf_elfheader (abfd)->e_shstrndx, - elf_section_data (sec)->rel_hdr.sh_name)); - if (name == NULL) - return false; - - BFD_ASSERT (strncmp (name, ".rela", 5) == 0 - && strcmp (bfd_get_section_name (abfd, sec), - name + 5) == 0); - - sreloc = bfd_get_section_by_name (dynobj, name); - if (sreloc == NULL) - { - sreloc = bfd_make_section (dynobj, name); - if (sreloc == NULL - || ! bfd_set_section_flags (dynobj, sreloc, - (SEC_ALLOC - | SEC_LOAD - | SEC_HAS_CONTENTS - | SEC_IN_MEMORY - | SEC_READONLY)) - || ! bfd_set_section_alignment (dynobj, sreloc, 2)) - return false; - } - } - - sreloc->_raw_size += sizeof (Elf32_External_Rela); - } - - 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. */ +/* Merge backend specific data from an object file to the output + object file when linking. */ -static boolean -elf32_sparc_adjust_dynamic_symbol (info, h) - struct bfd_link_info *info; - struct elf_link_hash_entry *h; +static bfd_boolean +elf32_sparc_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) { - bfd *dynobj; - asection *s; - unsigned int power_of_two; + bfd *obfd = info->output_bfd; + bfd_boolean error; + unsigned long ibfd_mach; + /* FIXME: This should not be static. */ + static unsigned long previous_ibfd_e_flags = (unsigned long) -1; - dynobj = elf_hash_table (info)->dynobj; + if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour + || bfd_get_flavour (obfd) != bfd_target_elf_flavour) + return TRUE; - /* Make sure we know what is going on here. */ - BFD_ASSERT (dynobj != NULL - && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) - || h->weakdef != NULL - || ((h->elf_link_hash_flags - & ELF_LINK_HASH_DEF_DYNAMIC) != 0 - && (h->elf_link_hash_flags - & ELF_LINK_HASH_REF_REGULAR) != 0 - && (h->elf_link_hash_flags - & ELF_LINK_HASH_DEF_REGULAR) == 0))); + error = FALSE; - /* 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). */ - if (h->type == STT_FUNC - || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) + ibfd_mach = bfd_get_mach (ibfd); + if (bfd_mach_sparc_64bit_p (ibfd_mach)) { - if (! elf_hash_table (info)->dynamic_sections_created) - { - /* This case can occur if we saw a WPLT30 reloc in an input - file, but none of the input files were dynamic objects. - In such a case, we don't actually need to build a - procedure linkage table, and we can just do a WDISP30 - reloc instead. */ - BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0); - return true; - } - - s = bfd_get_section_by_name (dynobj, ".plt"); - BFD_ASSERT (s != NULL); - - /* The first four 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; - } - - /* If this symbol is not defined in a regular file, and we are - not generating a shared library, then set the symbol to this - location in the .plt. This is required to make function - pointers compare as equal between the normal executable and - the shared library. */ - if (! info->shared - && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) - { - h->root.u.def.section = s; - h->root.u.def.value = s->_raw_size; - } - - h->plt_offset = s->_raw_size; - - /* Make room for this entry. */ - s->_raw_size += PLT_ENTRY_SIZE; - - /* We also need to make an entry in the .rela.plt section. */ - - s = bfd_get_section_by_name (dynobj, ".rela.plt"); - BFD_ASSERT (s != NULL); - s->_raw_size += sizeof (Elf32_External_Rela); - - return true; + error = TRUE; + _bfd_error_handler + (_("%B: compiled for a 64 bit system and target is 32 bit"), ibfd); } - - /* 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) + else if ((ibfd->flags & DYNAMIC) == 0) { - 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; + if (bfd_get_mach (obfd) < ibfd_mach) + bfd_set_arch_mach (obfd, bfd_arch_sparc, ibfd_mach); } - /* This is a reference to a symbol defined by a dynamic object which - is not a function. */ - - /* If we are creating a shared library, we must presume that the - only references to the symbol are via the global offset table. - For such cases we need not do anything here; the relocations will - be handled correctly by relocate_section. */ - if (info->shared) - return true; - - /* We must allocate the symbol in our .dynbss section, which will - become part of the .bss section of the executable. There will be - an entry for this symbol in the .dynsym section. The dynamic - object will contain position independent code, so all references - from the dynamic object to this symbol will go through the global - offset table. The dynamic linker will use the .dynsym entry to - determine the address it must put in the global offset table, so - both the dynamic object and the regular object will refer to the - same memory location for the variable. */ - - s = bfd_get_section_by_name (dynobj, ".dynbss"); - BFD_ASSERT (s != NULL); - - /* If the symbol is currently defined in the .bss section of the - dynamic object, then it is OK to simply initialize it to zero. - If the symbol is in some other section, 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_LOAD) != 0) + if (((elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA) + != previous_ibfd_e_flags) + && previous_ibfd_e_flags != (unsigned long) -1) { - asection *srel; - - srel = bfd_get_section_by_name (dynobj, ".rela.bss"); - BFD_ASSERT (srel != NULL); - srel->_raw_size += sizeof (Elf32_External_Rela); - h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; + _bfd_error_handler + (_("%B: linking little endian files with big endian files"), ibfd); + error = TRUE; } + previous_ibfd_e_flags = elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA; - /* 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->_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 (error) { - if (! bfd_set_section_alignment (dynobj, s, power_of_two)) - return false; + bfd_set_error (bfd_error_bad_value); + 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; + return _bfd_sparc_elf_merge_private_bfd_data (ibfd, info); } -/* Set the sizes of the dynamic sections. */ +/* The final processing done just before writing out the object file. + We need to set the e_machine field appropriately. */ -static boolean -elf32_sparc_size_dynamic_sections (output_bfd, info) - bfd *output_bfd; - struct bfd_link_info *info; +static void +elf32_sparc_final_write_processing (bfd *abfd, + bfd_boolean linker ATTRIBUTE_UNUSED) { - bfd *dynobj; - asection *s; - boolean reltext; - boolean relplt; - - dynobj = elf_hash_table (info)->dynobj; - BFD_ASSERT (dynobj != NULL); - - if (elf_hash_table (info)->dynamic_sections_created) + switch (bfd_get_mach (abfd)) { - /* Set the contents of the .interp section to the interpreter. */ - if (! info->shared) - { - s = bfd_get_section_by_name (dynobj, ".interp"); - BFD_ASSERT (s != NULL); - s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; - s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; - } - - /* Make space for the trailing nop in .plt. */ - s = bfd_get_section_by_name (dynobj, ".plt"); - BFD_ASSERT (s != NULL); - if (s->_raw_size > 0) - s->_raw_size += 4; - } - else - { - /* We may have created entries in the .rela.got section. - However, if we are not creating the dynamic sections, we will - not actually use these entries. Reset the size of .rela.got, - which will cause it to get stripped from the output file - below. */ - s = bfd_get_section_by_name (dynobj, ".rela.got"); - if (s != NULL) - s->_raw_size = 0; - } - - /* The check_relocs and adjust_dynamic_symbol entry points have - determined the sizes of the various dynamic sections. Allocate - memory for them. */ - reltext = false; - relplt = false; - for (s = dynobj->sections; s != NULL; s = s->next) - { - const char *name; - boolean strip; - - if ((s->flags & SEC_IN_MEMORY) == 0) - continue; - - /* It's OK to base decisions on the section name, because none - of the dynobj section names depend upon the input files. */ - name = bfd_get_section_name (dynobj, s); - - strip = false; - - if (strncmp (name, ".rela", 5) == 0) - { - if (s->_raw_size == 0) - { - /* If we don't need this section, strip it from the - output file. This is to handle .rela.bss and - .rel.plt. We must create it in - create_dynamic_sections, because it must be created - before the linker maps input sections to output - sections. The linker does that before - adjust_dynamic_symbol is called, and it is that - function which decides whether anything needs to go - into these sections. */ - strip = true; - } - else - { - asection *target; - - /* If this relocation section applies to a read only - section, then we probably need a DT_TEXTREL entry. */ - target = bfd_get_section_by_name (output_bfd, name + 5); - if (target != NULL - && (target->flags & SEC_READONLY) != 0) - reltext = true; - - if (strcmp (name, ".rela.plt") == 0) - relplt = true; - - /* We use the reloc_count field as a counter if we need - to copy relocs into the output file. */ - s->reloc_count = 0; - } - } - else if (strcmp (name, ".plt") != 0 - && strcmp (name, ".got") != 0) - { - /* It's not one of our sections, so don't allocate space. */ - continue; - } - - if (strip) - { - asection **spp; - - for (spp = &s->output_section->owner->sections; - *spp != s->output_section; - spp = &(*spp)->next) - ; - *spp = s->output_section->next; - --s->output_section->owner->section_count; - - continue; - } - - /* Allocate memory for the section contents. */ - s->contents = (bfd_byte *) bfd_alloc (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. */ - if (! info->shared) - { - if (! bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0)) - return false; - } - - if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0)) - return false; - - if (relplt) - { - if (! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0) - || ! bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_RELA) - || ! bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0)) - return false; - } - - if (! bfd_elf32_add_dynamic_entry (info, DT_RELA, 0) - || ! bfd_elf32_add_dynamic_entry (info, DT_RELASZ, 0) - || ! bfd_elf32_add_dynamic_entry (info, DT_RELAENT, - sizeof (Elf32_External_Rela))) - return false; - - if (reltext) - { - if (! bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0)) - return false; - } - } - - /* If we are generating a shared library, we generate a section - symbol for each output section. These are local symbols, which - means that they must come first in the dynamic symbol table. - That means we must increment the dynamic symbol index of every - other dynamic symbol. */ - if (info->shared) - { - int c, i; - - c = bfd_count_sections (output_bfd); - elf_link_hash_traverse (elf_hash_table (info), - elf32_sparc_adjust_dynindx, - (PTR) &c); - elf_hash_table (info)->dynsymcount += c; - - for (i = 1, s = output_bfd->sections; s != NULL; s = s->next, i++) - { - elf_section_data (s)->dynindx = i; - /* These symbols will have no names, so we don't need to - fiddle with dynstr_index. */ - } + case bfd_mach_sparc : + case bfd_mach_sparc_sparclet : + case bfd_mach_sparc_sparclite : + 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 : + case bfd_mach_sparc_v8plusc : + case bfd_mach_sparc_v8plusd : + case bfd_mach_sparc_v8pluse : + case bfd_mach_sparc_v8plusv : + case bfd_mach_sparc_v8plusm : + case bfd_mach_sparc_v8plusm8 : + 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_flags |= EF_SPARC_LEDATA; + break; + default : + abort (); + break; } - - return true; } -/* Increment the index of a dynamic symbol by a given amount. Called - via elf_link_hash_traverse. */ - -static boolean -elf32_sparc_adjust_dynindx (h, cparg) - struct elf_link_hash_entry *h; - PTR cparg; +static enum elf_reloc_type_class +elf32_sparc_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, + const asection *rel_sec ATTRIBUTE_UNUSED, + const Elf_Internal_Rela *rela) { - int *cp = (int *) cparg; - - if (h->dynindx != -1) - h->dynindx += *cp; - return true; -} - -/* Relocate a SPARC ELF section. */ - -static 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; -{ - bfd *dynobj; - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - bfd_vma *local_got_offsets; - asection *sgot; - asection *splt; - asection *sreloc; - Elf_Internal_Rela *rel; - Elf_Internal_Rela *relend; - - dynobj = elf_hash_table (info)->dynobj; - symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (input_bfd); - local_got_offsets = elf_local_got_offsets (input_bfd); - - sgot = NULL; - splt = NULL; - sreloc = NULL; - - rel = relocs; - relend = relocs + input_section->reloc_count; - for (; rel < relend; rel++) + switch ((int) ELF32_R_TYPE (rela->r_info)) { - int r_type; - reloc_howto_type *howto; - unsigned long r_symndx; - struct elf_link_hash_entry *h; - Elf_Internal_Sym *sym; - asection *sec; - bfd_vma relocation; - bfd_reloc_status_type r; - - r_type = ELF32_R_TYPE (rel->r_info); - if (r_type < 0 || r_type >= (int) R_SPARC_max) - { - bfd_set_error (bfd_error_bad_value); - return false; - } - howto = elf_sparc_howto_table + r_type; - - r_symndx = ELF32_R_SYM (rel->r_info); - - if (info->relocateable) - { - /* This is a relocateable link. We don't have to change - anything, unless the reloc is against a section symbol, - in which case we have to adjust according to where the - section symbol winds up in the output section. */ - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) - { - sec = local_sections[r_symndx]; - rel->r_addend += sec->output_offset + sym->st_value; - } - } - - continue; - } - - /* This is a final link. */ - h = NULL; - sym = NULL; - sec = NULL; - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - sec = local_sections[r_symndx]; - relocation = (sec->output_section->vma - + sec->output_offset - + sym->st_value); - } - else - { - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - sec = h->root.u.def.section; - if ((r_type == R_SPARC_WPLT30 - && h->plt_offset != (bfd_vma) -1) - || ((r_type == R_SPARC_GOT10 - || r_type == R_SPARC_GOT13 - || r_type == R_SPARC_GOT22) - && elf_hash_table (info)->dynamic_sections_created - && (! info->shared - || ! info->symbolic - || (h->elf_link_hash_flags - & ELF_LINK_HASH_DEF_REGULAR) == 0)) - || (info->shared - && (input_section->flags & SEC_ALLOC) != 0 - && (r_type == R_SPARC_8 - || r_type == R_SPARC_16 - || r_type == R_SPARC_32 - || r_type == R_SPARC_DISP8 - || r_type == R_SPARC_DISP16 - || r_type == R_SPARC_DISP32 - || r_type == R_SPARC_WDISP30 - || r_type == R_SPARC_WDISP22 - || r_type == R_SPARC_HI22 - || r_type == R_SPARC_22 - || r_type == R_SPARC_13 - || r_type == R_SPARC_LO10 - || r_type == R_SPARC_UA32 - || ((r_type == R_SPARC_PC10 - || r_type == R_SPARC_PC22) - && strcmp (h->root.root.string, - "_GLOBAL_OFFSET_TABLE_") != 0)))) - { - /* In these cases, we don't need the relocation - value. We check specially because in some - obscure cases sec->output_section will be NULL. */ - relocation = 0; - } - else - relocation = (h->root.u.def.value - + sec->output_section->vma - + sec->output_offset); - } - else if (h->root.type == bfd_link_hash_undefweak) - relocation = 0; - else if (info->shared && !info->symbolic) - relocation = 0; - else - { - if (! ((*info->callbacks->undefined_symbol) - (info, h->root.root.string, input_bfd, - input_section, rel->r_offset))) - return false; - relocation = 0; - } - } - - switch (r_type) - { - case R_SPARC_GOT10: - case R_SPARC_GOT13: - case R_SPARC_GOT22: - /* Relocation is to the entry for this symbol in the global - offset table. */ - if (sgot == NULL) - { - sgot = bfd_get_section_by_name (dynobj, ".got"); - BFD_ASSERT (sgot != NULL); - } - - if (h != NULL) - { - bfd_vma off; - - off = h->got_offset; - BFD_ASSERT (off != (bfd_vma) -1); - - if (! elf_hash_table (info)->dynamic_sections_created - || (info->shared - && info->symbolic - && (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. 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, - sgot->contents + off); - h->got_offset |= 1; - } - } - - relocation = sgot->output_offset + off; - } - else - { - bfd_vma off; - - 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 - { - bfd_put_32 (output_bfd, relocation, sgot->contents + off); - - if (info->shared) - { - asection *srelgot; - Elf_Internal_Rela outrel; - - /* We need to generate a R_SPARC_RELATIVE reloc - for the dynamic linker. */ - srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); - BFD_ASSERT (srelgot != NULL); - - outrel.r_offset = (sgot->output_section->vma - + sgot->output_offset - + off); - outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); - outrel.r_addend = 0; - bfd_elf32_swap_reloca_out (output_bfd, &outrel, - (((Elf32_External_Rela *) - srelgot->contents) - + srelgot->reloc_count)); - ++srelgot->reloc_count; - } - - local_got_offsets[r_symndx] |= 1; - } - - relocation = sgot->output_offset + off; - } - - break; - - case R_SPARC_WPLT30: - /* Relocation is to the entry for this symbol in the - procedure linkage table. */ - BFD_ASSERT (h != NULL); - - if (h->plt_offset == (bfd_vma) -1) - { - /* We didn't make a PLT entry for this symbol. This - happens when statically linking PIC code, or when - using -Bsymbolic. */ - break; - } - - if (splt == NULL) - { - splt = bfd_get_section_by_name (dynobj, ".plt"); - BFD_ASSERT (splt != NULL); - } - - relocation = (splt->output_section->vma - + splt->output_offset - + h->plt_offset); - 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: - if (h == NULL) - break; - /* Fall through. */ - case R_SPARC_8: - case R_SPARC_16: - case R_SPARC_32: - case R_SPARC_HI22: - case R_SPARC_22: - case R_SPARC_13: - case R_SPARC_LO10: - case R_SPARC_UA32: - if (info->shared - && (input_section->flags & SEC_ALLOC) != 0) - { - Elf_Internal_Rela outrel; - - /* When generating a shared object, these relocations - are copied into the output file to be resolved at run - time. */ - - if (sreloc == NULL) - { - const char *name; - - name = (bfd_elf_string_from_elf_section - (input_bfd, - elf_elfheader (input_bfd)->e_shstrndx, - elf_section_data (input_section)->rel_hdr.sh_name)); - if (name == NULL) - return false; - - BFD_ASSERT (strncmp (name, ".rela", 5) == 0 - && strcmp (bfd_get_section_name (input_bfd, - input_section), - name + 5) == 0); - - sreloc = bfd_get_section_by_name (dynobj, name); - BFD_ASSERT (sreloc != NULL); - } - - outrel.r_offset = (rel->r_offset - + input_section->output_section->vma - + input_section->output_offset); - if (h != NULL) - { - 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; - - sym = local_syms + r_symndx; - sec = local_sections[r_symndx]; - if (sec != NULL && bfd_is_abs_section (sec)) - indx = 0; - else if (sec == NULL || sec->owner == NULL) - { - bfd_set_error (bfd_error_bad_value); - return false; - } - else - { - asection *osec; - - osec = sec->output_section; - indx = elf_section_data (osec)->dynindx; - if (indx == 0) - abort (); - } - - outrel.r_info = ELF32_R_INFO (indx, r_type); - outrel.r_addend = relocation + rel->r_addend; - } - } - - bfd_elf32_swap_reloca_out (output_bfd, &outrel, - (((Elf32_External_Rela *) - sreloc->contents) - + sreloc->reloc_count)); - ++sreloc->reloc_count; - - /* This reloc will be computed at runtime, so there's no - need to do anything now. */ - continue; - } - - default: - break; - } - - 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; - } - } + 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; } - - return true; } -/* Finish up dynamic symbol handling. We set the contents of various - dynamic sections here. */ - -static 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; +/* Hook called by the linker routine which adds symbols from an object + file. */ + +static bfd_boolean +elf32_sparc_add_symbol_hook (bfd * abfd, + struct bfd_link_info * info, + Elf_Internal_Sym * sym, + const char ** namep ATTRIBUTE_UNUSED, + flagword * flagsp ATTRIBUTE_UNUSED, + asection ** secp ATTRIBUTE_UNUSED, + bfd_vma * valp ATTRIBUTE_UNUSED) { - bfd *dynobj; - - dynobj = elf_hash_table (info)->dynobj; - - if (h->plt_offset != (bfd_vma) -1) - { - asection *splt; - asection *srela; - Elf_Internal_Rela rela; - - /* This symbol has an entry in the procedure linkage table. Set - it up. */ - - BFD_ASSERT (h->dynindx != -1); - - splt = bfd_get_section_by_name (dynobj, ".plt"); - srela = bfd_get_section_by_name (dynobj, ".rela.plt"); - BFD_ASSERT (splt != NULL && srela != NULL); - - /* Fill in the entry in the 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, 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; - bfd_elf32_swap_reloca_out (output_bfd, &rela, - ((Elf32_External_Rela *) srela->contents - + h->plt_offset / PLT_ENTRY_SIZE - 4)); - - if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) - { - /* Mark the symbol as undefined, rather than as defined in - the .plt section. Leave the value alone. */ - sym->st_shndx = SHN_UNDEF; - } - } - - if (h->got_offset != (bfd_vma) -1) - { - asection *sgot; - asection *srela; - Elf_Internal_Rela rela; - - /* This symbol has an entry in the global offset table. Set it - up. */ - - BFD_ASSERT (h->dynindx != -1); - - sgot = bfd_get_section_by_name (dynobj, ".got"); - srela = bfd_get_section_by_name (dynobj, ".rela.got"); - BFD_ASSERT (sgot != NULL && srela != NULL); - - rela.r_offset = (sgot->output_section->vma - + sgot->output_offset - + (h->got_offset &~ 1)); - - /* If this is a -Bsymbolic link, and the symbol is defined - locally, we just want to emit a RELATIVE reloc. The entry in - the global offset table will already have been initialized in - the relocate_section function. */ - if (info->shared - && info->symbolic - && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) - rela.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE); - else - { - bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got_offset); - rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_GLOB_DAT); - } - - rela.r_addend = 0; - bfd_elf32_swap_reloca_out (output_bfd, &rela, - ((Elf32_External_Rela *) srela->contents - + srela->reloc_count)); - ++srela->reloc_count; - } - - if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) - { - asection *s; - Elf_Internal_Rela rela; - - /* This symbols needs a copy reloc. Set it up. */ - - BFD_ASSERT (h->dynindx != -1); - - s = bfd_get_section_by_name (h->root.u.def.section->owner, - ".rela.bss"); - BFD_ASSERT (s != NULL); - - rela.r_offset = (h->root.u.def.value - + h->root.u.def.section->output_section->vma - + h->root.u.def.section->output_offset); - rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_COPY); - rela.r_addend = 0; - bfd_elf32_swap_reloca_out (output_bfd, &rela, - ((Elf32_External_Rela *) s->contents - + s->reloc_count)); - ++s->reloc_count; - } - - /* Mark some specially defined symbols as absolute. */ - if (strcmp (h->root.root.string, "_DYNAMIC") == 0 - || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 - || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0) - sym->st_shndx = SHN_ABS; - - return true; + if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC + && (abfd->flags & DYNAMIC) == 0 + && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) + elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc; + return TRUE; } -/* Finish up the dynamic sections. */ - -static boolean -elf32_sparc_finish_dynamic_sections (output_bfd, info) - bfd *output_bfd; - struct bfd_link_info *info; -{ - bfd *dynobj; - asection *sdyn; - asection *sgot; - - dynobj = elf_hash_table (info)->dynobj; - - sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); - - if (elf_hash_table (info)->dynamic_sections_created) - { - asection *splt; - 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; - 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, SPARC_NOP, - splt->contents + splt->_raw_size - 4); - } - - elf_section_data (splt->output_section)->this_hdr.sh_entsize = - PLT_ENTRY_SIZE; - } - - /* Set the first entry in the global offset table to the address of - the dynamic section. */ - sgot = bfd_get_section_by_name (dynobj, ".got"); - BFD_ASSERT (sgot != NULL); - if (sgot->_raw_size > 0) - { - if (sdyn == NULL) - bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); - else - bfd_put_32 (output_bfd, - sdyn->output_section->vma + sdyn->output_offset, - sgot->contents); - } - - elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; - - if (info->shared) - { - asection *sdynsym; - asection *s; - Elf_Internal_Sym sym; - - /* Set up the section symbols for the output sections. */ +#define TARGET_BIG_SYM sparc_elf32_vec +#define TARGET_BIG_NAME "elf32-sparc" +#define ELF_ARCH bfd_arch_sparc +#define ELF_TARGET_ID SPARC_ELF_DATA +#define ELF_MACHINE_CODE EM_SPARC +#define ELF_MACHINE_ALT1 EM_SPARC32PLUS +#define ELF_MAXPAGESIZE 0x10000 +#define ELF_COMMONPAGESIZE 0x2000 - sdynsym = bfd_get_section_by_name (dynobj, ".dynsym"); - BFD_ASSERT (sdynsym != NULL); +#define bfd_elf32_bfd_merge_private_bfd_data \ + elf32_sparc_merge_private_bfd_data +#define elf_backend_final_write_processing \ + elf32_sparc_final_write_processing +#define elf_backend_grok_psinfo elf32_sparc_grok_psinfo +#define elf_backend_reloc_type_class elf32_sparc_reloc_type_class + +#define elf_info_to_howto _bfd_sparc_elf_info_to_howto +#define bfd_elf32_bfd_reloc_type_lookup _bfd_sparc_elf_reloc_type_lookup +#define bfd_elf32_bfd_reloc_name_lookup \ + _bfd_sparc_elf_reloc_name_lookup +#define bfd_elf32_bfd_link_hash_table_create \ + _bfd_sparc_elf_link_hash_table_create +#define bfd_elf32_bfd_relax_section _bfd_sparc_elf_relax_section +#define bfd_elf32_new_section_hook _bfd_sparc_elf_new_section_hook +#define elf_backend_copy_indirect_symbol \ + _bfd_sparc_elf_copy_indirect_symbol +#define elf_backend_create_dynamic_sections \ + _bfd_sparc_elf_create_dynamic_sections +#define elf_backend_check_relocs _bfd_sparc_elf_check_relocs +#define elf_backend_adjust_dynamic_symbol \ + _bfd_sparc_elf_adjust_dynamic_symbol +#define elf_backend_omit_section_dynsym _bfd_sparc_elf_omit_section_dynsym +#define elf_backend_size_dynamic_sections \ + _bfd_sparc_elf_size_dynamic_sections +#define elf_backend_relocate_section _bfd_sparc_elf_relocate_section +#define elf_backend_finish_dynamic_symbol \ + _bfd_sparc_elf_finish_dynamic_symbol +#define elf_backend_finish_dynamic_sections \ + _bfd_sparc_elf_finish_dynamic_sections +#define bfd_elf32_mkobject _bfd_sparc_elf_mkobject +#define elf_backend_object_p _bfd_sparc_elf_object_p +#define elf_backend_gc_mark_hook _bfd_sparc_elf_gc_mark_hook +#define elf_backend_gc_sweep_hook _bfd_sparc_elf_gc_sweep_hook +#define elf_backend_plt_sym_val _bfd_sparc_elf_plt_sym_val +#define elf_backend_init_index_section _bfd_elf_init_1_index_section +#define elf_backend_fixup_symbol _bfd_sparc_elf_fixup_symbol + +#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_want_dynrelro 1 +#define elf_backend_rela_normal 1 - sym.st_size = 0; - sym.st_name = 0; - sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); - sym.st_other = 0; +#define elf_backend_add_symbol_hook elf32_sparc_add_symbol_hook - for (s = output_bfd->sections; s != NULL; s = s->next) - { - int indx; +#include "elf32-target.h" - sym.st_value = s->vma; +/* Solaris 2. */ - indx = elf_section_data (s)->this_idx; - BFD_ASSERT (indx > 0); - sym.st_shndx = indx; +#undef TARGET_BIG_SYM +#define TARGET_BIG_SYM sparc_elf32_sol2_vec +#undef TARGET_BIG_NAME +#define TARGET_BIG_NAME "elf32-sparc-sol2" - bfd_elf32_swap_symbol_out (output_bfd, &sym, - (PTR) (((Elf32_External_Sym *) - sdynsym->contents) - + elf_section_data (s)->dynindx)); - } +#undef elf32_bed +#define elf32_bed elf32_sparc_sol2_bed - /* Set the sh_info field of the output .dynsym section to the - index of the first global symbol. */ - elf_section_data (sdynsym->output_section)->this_hdr.sh_info = - bfd_count_sections (output_bfd) + 1; - } +/* The 32-bit static TLS arena size is rounded to the nearest 8-byte + boundary. */ +#undef elf_backend_static_tls_alignment +#define elf_backend_static_tls_alignment 8 - return true; -} -/* start-sanitize-v8plus */ - -/* Function to set e_flags. */ +#undef elf_backend_strtab_flags +#define elf_backend_strtab_flags SHF_STRINGS -static boolean -elf32_sparc_set_private_flags (abfd, flags) - bfd *abfd; - flagword flags; +static bfd_boolean +elf32_sparc_copy_solaris_special_section_fields (const bfd *ibfd ATTRIBUTE_UNUSED, + bfd *obfd ATTRIBUTE_UNUSED, + const Elf_Internal_Shdr *isection ATTRIBUTE_UNUSED, + Elf_Internal_Shdr *osection ATTRIBUTE_UNUSED) { - /* Once the flags have been set, you (apparently) can't change them. */ - BFD_ASSERT (!elf_flags_init (abfd) - || elf_elfheader (abfd)->e_flags == flags); - - elf_elfheader (abfd)->e_flags = flags; - elf_flags_init (abfd) = true; - return true; + /* PR 19938: FIXME: Need to add code for setting the sh_info + and sh_link fields of Solaris specific section types. */ + return FALSE; } -/* Copy backend specific data from one object module to another. */ +#undef elf_backend_copy_special_section_fields +#define elf_backend_copy_special_section_fields elf32_sparc_copy_solaris_special_section_fields -static boolean -elf32_sparc_copy_private_bfd_data (ibfd, obfd) - bfd *ibfd; - bfd *obfd; -{ - /* This function is selected based on the input vector. We only - want to copy information over if the output BFD also uses Elf - format. */ - if (bfd_get_flavour (obfd) != bfd_target_elf_flavour) - return true; - - /* Once the flags have been set, you (apparently) can't change them. */ - BFD_ASSERT (!elf_flags_init (obfd) - || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags); - - elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; - elf_flags_init (obfd) = true; - return true; -} +#include "elf32-target.h" -/* Merge backend specific data from an object file to the output - object file when linking. */ +/* A wrapper around _bfd_sparc_elf_link_hash_table_create that identifies + the target system as VxWorks. */ -static boolean -elf32_sparc_merge_private_bfd_data (ibfd, obfd) - bfd *ibfd; - bfd *obfd; +static struct bfd_link_hash_table * +elf32_sparc_vxworks_link_hash_table_create (bfd *abfd) { - flagword old_flags; - flagword new_flags; - boolean error; - - /* This function is selected based on the input vector. We only - want to copy information over if the output BFD also uses Elf - format. */ - if (bfd_get_flavour (obfd) != bfd_target_elf_flavour) - return true; - - error = false; - - /* If the output machine is normal sparc, we can't allow v9 input files. */ - if (bfd_get_mach (obfd) == bfd_mach_sparc - && (bfd_get_mach (ibfd) == bfd_mach_sparc_v8plus - || bfd_get_mach (ibfd) == bfd_mach_sparc_v8plusa)) - { - error = true; - (*_bfd_error_handler) - ("%s: compiled for a v8plus system and target is v8", - bfd_get_filename (ibfd)); - } - /* If the output machine is v9, we can't allow v9+vis input files. */ - if (bfd_get_mach (obfd) == bfd_mach_sparc_v8plus - && bfd_get_mach (ibfd) == bfd_mach_sparc_v8plusa) - { - error = true; - (*_bfd_error_handler) - ("%s: compiled for a v8plusa system and target is v8plus", - bfd_get_filename (ibfd)); - } + struct bfd_link_hash_table *ret; - new_flags = elf_elfheader (ibfd)->e_flags; - old_flags = elf_elfheader (obfd)->e_flags; - if (!elf_flags_init (obfd)) /* First call, no flags set */ + ret = _bfd_sparc_elf_link_hash_table_create (abfd); + if (ret) { - elf_flags_init (obfd) = true; - elf_elfheader (obfd)->e_flags = new_flags; - } - else if (new_flags == old_flags) /* Compatible flags are ok */ - ; - else /* Potentially incompatible flags */ - { - new_flags &= ~ (EF_SPARC_32PLUS | EF_SPARC_SUN_US1); - old_flags &= ~ (EF_SPARC_32PLUS | EF_SPARC_SUN_US1); + struct _bfd_sparc_elf_link_hash_table *htab; - /* Warn about any other mismatches */ - if (new_flags != old_flags) - { - error = true; - (*_bfd_error_handler) - ("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)", - bfd_get_filename (ibfd), (long) new_flags, (long) old_flags); - } + htab = (struct _bfd_sparc_elf_link_hash_table *) ret; + htab->is_vxworks = 1; } - - if (error) - { - bfd_set_error (bfd_error_bad_value); - return false; - } - - return true; -} - -/* Set the right machine number. */ - -static boolean -elf32_sparc_object_p (abfd) - bfd *abfd; -{ - if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS) - return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc_v8plus); - else - return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc); + return ret; } -/* The final processing done just before writing out the object file. - We need to set the e_machine field appropriately. */ +/* A final_write_processing hook that does both the SPARC- and VxWorks- + specific handling. */ static void -elf32_sparc_final_write_processing (abfd, linker) - bfd *abfd; - boolean linker; +elf32_sparc_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker) { - if (bfd_get_mach (abfd) == bfd_mach_sparc_v8plus) - { - elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS; -#if 0 /* FIXME: Not sure how to handle EF_SPARC_32PLUS_US1 */ - elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK; -#endif - elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS; - } + elf32_sparc_final_write_processing (abfd, linker); + elf_vxworks_final_write_processing (abfd, linker); } -/* end-sanitize-v8plus */ - -#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 -/* start-sanitize-v8plus */ -#define ELF_MACHINE_ALT1 EM_SPARC32PLUS -/* end-sanitize-v8plus */ -#define ELF_MAXPAGESIZE 0x10000 -#define elf_backend_create_dynamic_sections \ - _bfd_elf_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 -/* start-sanitize-v8plus */ -#define bfd_elf32_bfd_set_private_flags elf32_sparc_set_private_flags -#define bfd_elf32_bfd_copy_private_bfd_data \ - elf32_sparc_copy_private_bfd_data -#define bfd_elf32_bfd_merge_private_bfd_data \ - elf32_sparc_merge_private_bfd_data -#define elf_backend_object_p elf32_sparc_object_p + +#undef TARGET_BIG_SYM +#define TARGET_BIG_SYM sparc_elf32_vxworks_vec +#undef TARGET_BIG_NAME +#define TARGET_BIG_NAME "elf32-sparc-vxworks" + +#undef ELF_MINPAGESIZE +#define ELF_MINPAGESIZE 0x1000 + +#undef bfd_elf32_bfd_link_hash_table_create +#define bfd_elf32_bfd_link_hash_table_create \ + elf32_sparc_vxworks_link_hash_table_create + +#undef elf_backend_want_got_plt +#define elf_backend_want_got_plt 1 +#undef elf_backend_plt_readonly +#define elf_backend_plt_readonly 1 +#undef elf_backend_got_header_size +#define elf_backend_got_header_size 12 +#undef elf_backend_dtrel_excludes_plt +#define elf_backend_dtrel_excludes_plt 1 +#undef elf_backend_add_symbol_hook +#define elf_backend_add_symbol_hook \ + elf_vxworks_add_symbol_hook +#undef elf_backend_link_output_symbol_hook +#define elf_backend_link_output_symbol_hook \ + elf_vxworks_link_output_symbol_hook +#undef elf_backend_emit_relocs +#define elf_backend_emit_relocs \ + elf_vxworks_emit_relocs +#undef elf_backend_final_write_processing #define elf_backend_final_write_processing \ - elf32_sparc_final_write_processing -/* end-sanitize-v8plus */ -#define elf_backend_want_got_plt 0 -#define elf_backend_plt_readonly 0 -#define elf_backend_want_plt_sym 1 + elf32_sparc_vxworks_final_write_processing +#undef elf_backend_static_tls_alignment +#undef elf_backend_strtab_flags +#undef elf_backend_copy_special_section_fields + +#undef elf32_bed +#define elf32_bed sparc_elf_vxworks_bed #include "elf32-target.h"