diff options
| -rw-r--r-- | bfd/ChangeLog | 34 | ||||
| -rw-r--r-- | bfd/elf64-ppc.c | 361 | ||||
| -rw-r--r-- | bfd/elf64-ppc.h | 4 | ||||
| -rw-r--r-- | bfd/elflink.h | 29 |
4 files changed, 298 insertions, 130 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 55d40ef7d1..86cc6d298b 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,37 @@ +2003-07-10 Alan Modra <amodra@bigpond.net.au> + + * elf64-ppc.c (bfd_elf64_mkobject): Define. + (struct ppc64_elf_obj_tdata): New. + (ppc64_elf_tdata, ppc64_tlsld_got): Define. + (ppc64_elf_mkobject): New function. + (struct got_entry): Add "owner". Move "tls_type". + (struct ppc_link_hash_table): Delete "relgot", "tlsld_got". + (ppc64_elf_init_stub_bfd): New function. + (create_got_section): Create header .got in dynobj. Create .got + and .rela.got in each bfd. Stash pointers in ppc64_elf_obj_tdata. + (ppc64_elf_create_dynamic_sections): Don't call create_got_section. + Look for dynobj .got, and test it. + (ppc64_elf_copy_indirect_symbol): Adjust for changed got. + (update_local_sym_info): Likewise. + (ppc64_elf_check_relocs): Likewise. + (ppc64_elf_gc_sweep_hook): Likewise. + (ppc64_elf_tls_optimize): Likewise. + (allocate_dynrelocs): Likewise. + (ppc64_elf_size_dynamic_sections): Likewise. + (ppc64_elf_relocate_section): Likewise. + (ppc64_elf_next_toc_section): Update comment. + (toc_adjusting_stub_needed): Remove unneeded cast. + (ppc64_elf_build_stubs): Check for stub sections in stub bfd by + testing section flags. + (ppc64_elf_build_stubs): Likewise. + (ppc64_elf_size_stubs): Likewise. Remove stub_bfd param. + (ppc64_elf_finish_dynamic_sections): Write out got sections. + (func_desc_adjust): Copy over dynamic info for undef weaks. + * elf64-ppc.h (ppc64_elf_init_stub_bfd): Declare. + (ppc64_elf_size_stubs): Update prototype. + * elflink.h (elf_link_sort_relocs): Use link_orders to find reldyn + input sections rather than scanning dynobj. + 2003-07-09 Richard Sandiford <rsandifo@redhat.com> * elfxx-mips.c (mips_elf_link_hash_entry): Remove min_dyn_reloc_index. diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c index ab2f45a3ad..0334d84c9b 100644 --- a/bfd/elf64-ppc.c +++ b/bfd/elf64-ppc.c @@ -69,6 +69,7 @@ static bfd_reloc_status_type ppc64_elf_unhandled_reloc #define elf_backend_can_refcount 1 #define elf_backend_rela_normal 1 +#define bfd_elf64_mkobject ppc64_elf_mkobject #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook @@ -2316,6 +2317,40 @@ ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, return bfd_reloc_dangerous; } +struct ppc64_elf_obj_tdata +{ + struct elf_obj_tdata elf; + + /* Shortcuts to dynamic linker sections. */ + asection *got; + asection *relgot; + + /* TLS local dynamic got entry handling. Suppose for multiple GOT + sections means we potentially need one of these for each input bfd. */ + union { + bfd_signed_vma refcount; + bfd_vma offset; + } tlsld_got; +}; + +#define ppc64_elf_tdata(bfd) \ + ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) + +#define ppc64_tlsld_got(bfd) \ + (&ppc64_elf_tdata (bfd)->tlsld_got) + +/* Override the generic function because we store some extras. */ + +static bfd_boolean +ppc64_elf_mkobject (bfd *abfd) +{ + bfd_size_type amt = sizeof (struct ppc64_elf_obj_tdata); + abfd->tdata.any = bfd_zalloc (abfd, amt); + if (abfd->tdata.any == NULL) + return FALSE; + return TRUE; +} + /* Fix bad default arch selected for a 64 bit input bfd when the default is 32 bit. */ @@ -2497,16 +2532,24 @@ struct got_entry /* The symbol addend that we'll be placing in the GOT. */ bfd_vma addend; + /* Unlike other ELF targets, we use separate GOT entries for the same + symbol referenced from different input files. This is to support + automatic multiple TOC/GOT sections, where the TOC base can vary + from one input file to another. + + Point to the BFD owning this GOT entry. */ + bfd *owner; + + /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, + TLS_TPREL or TLS_DTPREL for tls entries. */ + char tls_type; + /* Reference count until size_dynamic_sections, GOT offset thereafter. */ union { bfd_signed_vma refcount; bfd_vma offset; } got; - - /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, - TLS_TPREL or TLS_DTPREL for tls entries. */ - char tls_type; }; /* The same for PLT. */ @@ -2719,7 +2762,6 @@ struct ppc_link_hash_table /* Short-cuts to get to dynamic linker sections. */ asection *got; - asection *relgot; asection *plt; asection *relplt; asection *dynbss; @@ -2735,12 +2777,6 @@ struct ppc_link_hash_table /* Shortcut to .__tls_get_addr. */ struct elf_link_hash_entry *tls_get_addr; - /* TLS local dynamic got entry handling. */ - union { - bfd_signed_vma refcount; - bfd_vma offset; - } tlsld_got; - /* Statistics. */ unsigned long stub_count[ppc_stub_plt_call]; @@ -2928,6 +2964,23 @@ ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash) _bfd_generic_link_hash_table_free (hash); } +/* Satisfy the ELF linker by filling in some fields in our fake bfd. */ + +void +ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info) +{ + struct ppc_link_hash_table *htab; + + elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64; + +/* Always hook our dynamic sections into the first bfd, which is the + linker created stub bfd. This ensures that the GOT header is at + the start of the output TOC section. */ + htab = ppc_hash_table (info); + htab->stub_bfd = abfd; + htab->elf.dynobj = abfd; +} + /* Build a name for an entry in the stub hash table. */ static char * @@ -3122,30 +3175,43 @@ create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) return TRUE; } -/* Create .got and .rela.got sections in DYNOBJ, and set up - shortcuts to them in our hash table. */ +/* Create .got and .rela.got sections in ABFD, and .got in dynobj if + not already done. */ static bfd_boolean -create_got_section (bfd *dynobj, struct bfd_link_info *info) +create_got_section (bfd *abfd, struct bfd_link_info *info) { - struct ppc_link_hash_table *htab; - - if (! _bfd_elf_create_got_section (dynobj, info)) - return FALSE; + asection *got, *relgot; + flagword flags; + struct ppc_link_hash_table *htab = ppc_hash_table (info); - htab = ppc_hash_table (info); - htab->got = bfd_get_section_by_name (dynobj, ".got"); if (!htab->got) - abort (); + { + if (! _bfd_elf_create_got_section (htab->elf.dynobj, info)) + return FALSE; + + htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got"); + if (!htab->got) + abort (); + } + + flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY + | SEC_LINKER_CREATED); + + got = bfd_make_section (abfd, ".got"); + if (!got + || !bfd_set_section_flags (abfd, got, flags) + || !bfd_set_section_alignment (abfd, got, 3)) + return FALSE; - htab->relgot = bfd_make_section (dynobj, ".rela.got"); - if (!htab->relgot - || ! bfd_set_section_flags (dynobj, htab->relgot, - (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS - | SEC_IN_MEMORY | SEC_LINKER_CREATED - | SEC_READONLY)) - || ! bfd_set_section_alignment (dynobj, htab->relgot, 3)) + relgot = bfd_make_section (abfd, ".rela.got"); + if (!relgot + || ! bfd_set_section_flags (abfd, relgot, flags | SEC_READONLY) + || ! bfd_set_section_alignment (abfd, relgot, 3)) return FALSE; + + ppc64_elf_tdata (abfd)->got = got; + ppc64_elf_tdata (abfd)->relgot = relgot; return TRUE; } @@ -3156,20 +3222,19 @@ ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) { struct ppc_link_hash_table *htab; - htab = ppc_hash_table (info); - if (!htab->got && !create_got_section (dynobj, info)) - return FALSE; - if (!_bfd_elf_create_dynamic_sections (dynobj, info)) return FALSE; + htab = ppc_hash_table (info); + if (!htab->got) + htab->got = bfd_get_section_by_name (dynobj, ".got"); htab->plt = bfd_get_section_by_name (dynobj, ".plt"); htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt"); htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss"); if (!info->shared) htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss"); - if (!htab->plt || !htab->relplt || !htab->dynbss + if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss || (!info->shared && !htab->relbss)) abort (); @@ -3260,6 +3325,7 @@ ppc64_elf_copy_indirect_symbol (struct elf_backend_data *bed ATTRIBUTE_UNUSED, for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) if (dent->addend == ent->addend + && dent->owner == ent->owner && dent->tls_type == ent->tls_type) { dent->got.refcount += ent->got.refcount; @@ -3360,7 +3426,9 @@ update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, struct got_entry *ent; for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) - if (ent->addend == r_addend && ent->tls_type == tls_type) + if (ent->addend == r_addend + && ent->owner == abfd + && ent->tls_type == tls_type) break; if (ent == NULL) { @@ -3370,6 +3438,7 @@ update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, return FALSE; ent->next = local_got_ents[r_symndx]; ent->addend = r_addend; + ent->owner = abfd; ent->tls_type = tls_type; ent->got.refcount = 0; local_got_ents[r_symndx] = ent; @@ -3460,8 +3529,6 @@ ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map; } - if (htab->elf.dynobj == NULL) - htab->elf.dynobj = abfd; if (htab->sfpr == NULL && !create_linkage_sections (htab->elf.dynobj, info)) return FALSE; @@ -3487,7 +3554,7 @@ ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, case R_PPC64_GOT_TLSLD16_LO: case R_PPC64_GOT_TLSLD16_HI: case R_PPC64_GOT_TLSLD16_HA: - htab->tlsld_got.refcount += 1; + ppc64_tlsld_got (abfd)->refcount += 1; tls_type = TLS_TLS | TLS_LD; goto dogottls; @@ -3524,8 +3591,8 @@ ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, case R_PPC64_GOT16_LO_DS: /* This symbol requires a global offset table entry. */ sec->has_gp_reloc = 1; - if (htab->got == NULL - && !create_got_section (htab->elf.dynobj, info)) + if (ppc64_elf_tdata (abfd)->got == NULL + && !create_got_section (abfd, info)) return FALSE; if (h != NULL) @@ -3536,6 +3603,7 @@ ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, eh = (struct ppc_link_hash_entry *) h; for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) if (ent->addend == rel->r_addend + && ent->owner == abfd && ent->tls_type == tls_type) break; if (ent == NULL) @@ -3546,6 +3614,7 @@ ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, return FALSE; ent->next = eh->elf.got.glist; ent->addend = rel->r_addend; + ent->owner = abfd; ent->tls_type = tls_type; ent->got.refcount = 0; eh->elf.got.glist = ent; @@ -4054,7 +4123,7 @@ ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, case R_PPC64_GOT_TLSLD16_LO: case R_PPC64_GOT_TLSLD16_HI: case R_PPC64_GOT_TLSLD16_HA: - htab->tlsld_got.refcount -= 1; + ppc64_tlsld_got (abfd)->refcount -= 1; tls_type = TLS_TLS | TLS_LD; goto dogot; @@ -4096,6 +4165,7 @@ ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, for (; ent != NULL; ent = ent->next) if (ent->addend == rel->r_addend + && ent->owner == abfd && ent->tls_type == tls_type) break; if (ent == NULL) @@ -4213,7 +4283,9 @@ func_desc_adjust (struct elf_link_hash_entry *h, void *inf) && (fdh->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 && (info->shared || (fdh->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 - || (fdh->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0)) + || (fdh->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0 + || (fdh->root.type == bfd_link_hash_undefweak + && ELF_ST_VISIBILITY (fdh->other) == STV_DEFAULT))) { if (fdh->dynindx == -1) if (! bfd_elf64_link_record_dynamic_symbol (info, fdh)) @@ -5138,7 +5210,7 @@ ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) /* These relocs should never be against a symbol defined in a shared lib. Leave them alone if that turns out to be the case. */ - htab->tlsld_got.refcount -= 1; + ppc64_tlsld_got (ibfd)->refcount -= 1; if (!is_local) continue; @@ -5276,6 +5348,7 @@ ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) for (; ent != NULL; ent = ent->next) if (ent->addend == rel->r_addend + && ent->owner == ibfd && ent->tls_type == tls_type) break; if (ent == NULL) @@ -5431,7 +5504,8 @@ allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) for (ent = h->got.glist; ent != NULL; ent = ent->next) if (ent->got.refcount > 0 && (ent->tls_type & TLS_TPREL) != 0 - && ent->addend == gent->addend) + && ent->addend == gent->addend + && ent->owner == gent->owner) { gent->got.refcount = 0; break; @@ -5460,11 +5534,11 @@ allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) if ((gent->tls_type & TLS_LD) != 0 && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)) { - gent->got.offset = htab->tlsld_got.offset; + gent->got.offset = ppc64_tlsld_got (gent->owner)->offset; continue; } - s = htab->got; + s = ppc64_elf_tdata (gent->owner)->got; gent->got.offset = s->_raw_size; s->_raw_size += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8; @@ -5473,7 +5547,7 @@ allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT || h->root.type != bfd_link_hash_undefweak)) - htab->relgot->_raw_size + ppc64_elf_tdata (gent->owner)->relgot->_raw_size += (gent->tls_type & eh->tls_mask & TLS_GD ? 2 * sizeof (Elf64_External_Rela) : sizeof (Elf64_External_Rela)); @@ -5618,16 +5692,6 @@ ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, } } - if (htab->tlsld_got.refcount > 0) - { - htab->tlsld_got.offset = htab->got->_raw_size; - htab->got->_raw_size += 16; - if (info->shared) - htab->relgot->_raw_size += sizeof (Elf64_External_Rela); - } - else - htab->tlsld_got.offset = (bfd_vma) -1; - /* Set up .got offsets for local syms, and space for local dynamic relocs. */ for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) @@ -5642,6 +5706,20 @@ ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) continue; + if (ppc64_tlsld_got (ibfd)->refcount > 0) + { + s = ppc64_elf_tdata (ibfd)->got; + ppc64_tlsld_got (ibfd)->offset = s->_raw_size; + s->_raw_size += 16; + if (info->shared) + { + srel = ppc64_elf_tdata (ibfd)->relgot; + srel->_raw_size += sizeof (Elf64_External_Rela); + } + } + else + ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1; + for (s = ibfd->sections; s != NULL; s = s->next) { struct ppc_dyn_relocs *p; @@ -5677,8 +5755,8 @@ ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, locsymcount = symtab_hdr->sh_info; end_lgot_ents = lgot_ents + locsymcount; lgot_masks = (char *) end_lgot_ents; - s = htab->got; - srel = htab->relgot; + s = ppc64_elf_tdata (ibfd)->got; + srel = ppc64_elf_tdata (ibfd)->relgot; for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) { struct got_entry *ent; @@ -5688,14 +5766,14 @@ ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, { if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) { - if (htab->tlsld_got.offset == (bfd_vma) -1) + if (ppc64_tlsld_got (ibfd)->offset == (bfd_vma) -1) { - htab->tlsld_got.offset = s->_raw_size; + ppc64_tlsld_got (ibfd)->offset = s->_raw_size; s->_raw_size += 16; if (info->shared) srel->_raw_size += sizeof (Elf64_External_Rela); } - ent->got.offset = htab->tlsld_got.offset; + ent->got.offset = ppc64_tlsld_got (ibfd)->offset; } else { @@ -5738,16 +5816,8 @@ ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (s == htab->brlt || s == htab->relbrlt) /* These haven't been allocated yet; don't strip. */ continue; - else if (s == htab->got) - { - /* Automatic multiple tocs aren't possible if we are using the - GOT. The GOT is accessed via r2, so we can't adjust r2. - FIXME: There's no reason why we couldn't lay out multiple - GOTs too. */ - if (s->_raw_size > elf_backend_got_header_size) - htab->no_multi_toc = 1; - } - else if (s == htab->plt + else if (s == htab->got + || s == htab->plt || s == htab->glink) { /* Strip this section if we don't need it; see the @@ -5805,6 +5875,38 @@ ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, return FALSE; } + for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) + { + s = ppc64_elf_tdata (ibfd)->got; + if (s != NULL && s != htab->got) + { + s->_cooked_size = 0; + if (s->_raw_size == 0) + _bfd_strip_section_from_output (info, s); + else + { + s->contents = bfd_zalloc (ibfd, s->_raw_size); + if (s->contents == NULL) + return FALSE; + } + } + s = ppc64_elf_tdata (ibfd)->relgot; + if (s != NULL) + { + s->_cooked_size = 0; + if (s->_raw_size == 0) + _bfd_strip_section_from_output (info, s); + else + { + s->contents = bfd_zalloc (ibfd, s->_raw_size); + if (s->contents == NULL) + return FALSE; + relocs = TRUE; + s->reloc_count = 0; + } + } + } + if (htab->elf.dynamic_sections_created) { /* Add some entries to the .dynamic section. We fill in the @@ -6323,10 +6425,10 @@ ppc64_elf_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info) return 1; } -/* The linker repeatedly calls this function for each toc input - section. Group input bfds such that the toc within a group - is less than 64k in size. Will break with cute linker scripts - that play games with dot in the output toc section. */ +/* The linker repeatedly calls this function for each TOC input section + and linker generated GOT section. Group input bfds such that the toc + within a group is less than 64k in size. Will break with cute linker + scripts that play games with dot in the output toc section. */ void ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) @@ -6389,7 +6491,7 @@ toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) if (contents == NULL) return -1; if (! bfd_get_section_contents (isec->owner, isec, contents, - (file_ptr) 0, isec->_raw_size)) + 0, isec->_raw_size)) { free (contents); return -1; @@ -6555,7 +6657,6 @@ group_sections (struct ppc_link_hash_table *htab, bfd_boolean ppc64_elf_size_stubs (bfd *output_bfd, - bfd *stub_bfd, struct bfd_link_info *info, bfd_signed_vma group_size, asection *(*add_stub_section) (const char *, asection *), @@ -6566,7 +6667,6 @@ ppc64_elf_size_stubs (bfd *output_bfd, struct ppc_link_hash_table *htab = ppc_hash_table (info); /* Stash our params away. */ - htab->stub_bfd = stub_bfd; htab->add_stub_section = add_stub_section; htab->layout_sections_again = layout_sections_again; stubs_always_before_branch = group_size < 0; @@ -6820,10 +6920,11 @@ ppc64_elf_size_stubs (bfd *output_bfd, for (stub_sec = htab->stub_bfd->sections; stub_sec != NULL; stub_sec = stub_sec->next) - { - stub_sec->_raw_size = 0; - stub_sec->_cooked_size = 0; - } + if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) + { + stub_sec->_raw_size = 0; + stub_sec->_cooked_size = 0; + } htab->brlt->_raw_size = 0; htab->brlt->_cooked_size = 0; @@ -6909,24 +7010,26 @@ ppc64_elf_build_stubs (bfd_boolean emit_stub_syms, struct ppc_link_hash_table *htab = ppc_hash_table (info); asection *stub_sec; bfd_byte *p; + int stub_sec_count = 0; htab->emit_stub_syms = emit_stub_syms; for (stub_sec = htab->stub_bfd->sections; stub_sec != NULL; stub_sec = stub_sec->next) - { - bfd_size_type size; + if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) + { + bfd_size_type size; - /* Allocate memory to hold the linker stubs. */ - size = stub_sec->_raw_size; - if (size != 0) - { - stub_sec->contents = bfd_zalloc (htab->stub_bfd, size); - if (stub_sec->contents == NULL) - return FALSE; - } - stub_sec->_cooked_size = 0; - } + /* Allocate memory to hold the linker stubs. */ + size = stub_sec->_raw_size; + if (size != 0) + { + stub_sec->contents = bfd_zalloc (htab->stub_bfd, size); + if (stub_sec->contents == NULL) + return FALSE; + } + stub_sec->_cooked_size = 0; + } if (htab->plt != NULL) { @@ -7018,10 +7121,12 @@ ppc64_elf_build_stubs (bfd_boolean emit_stub_syms, for (stub_sec = htab->stub_bfd->sections; stub_sec != NULL; stub_sec = stub_sec->next) - { - if (stub_sec->_raw_size != stub_sec->_cooked_size) - break; - } + if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) + { + stub_sec_count += 1; + if (stub_sec->_raw_size != stub_sec->_cooked_size) + break; + } if (stub_sec != NULL || htab->glink->_raw_size != htab->glink->_cooked_size) @@ -7045,7 +7150,7 @@ ppc64_elf_build_stubs (bfd_boolean emit_stub_syms, " long branch %lu\n" " long toc adj %lu\n" " plt call %lu"), - htab->stub_bfd->section_count, + stub_sec_count, htab->stub_count[ppc_stub_long_branch - 1], htab->stub_count[ppc_stub_long_branch_r2off - 1], htab->stub_count[ppc_stub_plt_branch - 1], @@ -7736,17 +7841,15 @@ ppc64_elf_relocate_section (bfd *output_bfd, { /* Relocation is to the entry for this symbol in the global offset table. */ + asection *got; bfd_vma *offp; bfd_vma off; unsigned long indx = 0; - if (htab->got == NULL) - abort (); - if (tls_type == (TLS_TLS | TLS_LD) && (h == NULL || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))) - offp = &htab->tlsld_got.offset; + offp = &ppc64_tlsld_got (input_bfd)->offset; else { struct got_entry *ent; @@ -7778,6 +7881,7 @@ ppc64_elf_relocate_section (bfd *output_bfd, for (; ent != NULL; ent = ent->next) if (ent->addend == rel->r_addend + && ent->owner == input_bfd && ent->tls_type == tls_type) break; if (ent == NULL) @@ -7785,6 +7889,10 @@ ppc64_elf_relocate_section (bfd *output_bfd, offp = &ent->got.offset; } + got = ppc64_elf_tdata (input_bfd)->got; + if (got == NULL) + abort (); + /* The offset must always be a multiple of 8. We use the least significant bit to record whether we have already processed this entry. */ @@ -7796,14 +7904,16 @@ ppc64_elf_relocate_section (bfd *output_bfd, /* Generate relocs for the dynamic linker, except in the case of TLSLD where we'll use one entry per module. */ + asection *relgot = ppc64_elf_tdata (input_bfd)->relgot; + *offp = off | 1; if ((info->shared || indx != 0) && (h == NULL || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT || h->root.type != bfd_link_hash_undefweak)) { - outrel.r_offset = (htab->got->output_section->vma - + htab->got->output_offset + outrel.r_offset = (got->output_section->vma + + got->output_offset + off); outrel.r_addend = rel->r_addend; if (tls_type & (TLS_LD | TLS_GD)) @@ -7812,8 +7922,8 @@ ppc64_elf_relocate_section (bfd *output_bfd, outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); if (tls_type == (TLS_TLS | TLS_GD)) { - loc = htab->relgot->contents; - loc += (htab->relgot->reloc_count++ + loc = relgot->contents; + loc += (relgot->reloc_count++ * sizeof (Elf64_External_Rela)); bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); @@ -7833,7 +7943,7 @@ ppc64_elf_relocate_section (bfd *output_bfd, /* Write the .got section contents for the sake of prelink. */ - loc = htab->got->contents + off; + loc = got->contents + off; bfd_put_64 (output_bfd, outrel.r_addend + relocation, loc); } @@ -7846,8 +7956,8 @@ ppc64_elf_relocate_section (bfd *output_bfd, if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) outrel.r_addend -= htab->tls_sec->vma; } - loc = htab->relgot->contents; - loc += (htab->relgot->reloc_count++ + loc = relgot->contents; + loc += (relgot->reloc_count++ * sizeof (Elf64_External_Rela)); bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); } @@ -7868,23 +7978,23 @@ ppc64_elf_relocate_section (bfd *output_bfd, if (tls_type == (TLS_TLS | TLS_GD)) { bfd_put_64 (output_bfd, relocation, - htab->got->contents + off + 8); + got->contents + off + 8); relocation = 1; } } bfd_put_64 (output_bfd, relocation, - htab->got->contents + off); + got->contents + off); } } if (off >= (bfd_vma) -2) abort (); - relocation = htab->got->output_offset + off; + relocation = got->output_offset + off; /* TOC base (r2) is TOC start plus 0x8000. */ - addend = - TOC_BASE_OFF; + addend = -TOC_BASE_OFF; } break; @@ -8626,6 +8736,29 @@ ppc64_elf_finish_dynamic_sections (bfd *output_bfd, = PLT_ENTRY_SIZE; } + /* We need to handle writing out multiple GOT sections ourselves, + since we didn't add them to DYNOBJ. */ + while ((dynobj = dynobj->link_next) != NULL) + { + asection *s; + s = ppc64_elf_tdata (dynobj)->got; + if (s != NULL + && s->_raw_size != 0 + && s->output_section != bfd_abs_section_ptr + && !bfd_set_section_contents (output_bfd, s->output_section, + s->contents, s->output_offset, + s->_raw_size)) + return FALSE; + s = ppc64_elf_tdata (dynobj)->relgot; + if (s != NULL + && s->_raw_size != 0 + && s->output_section != bfd_abs_section_ptr + && !bfd_set_section_contents (output_bfd, s->output_section, + s->contents, s->output_offset, + s->_raw_size)) + return FALSE; + } + return TRUE; } diff --git a/bfd/elf64-ppc.h b/bfd/elf64-ppc.h index 0572d52801..c26df82da8 100644 --- a/bfd/elf64-ppc.h +++ b/bfd/elf64-ppc.h @@ -17,6 +17,8 @@ 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. */ +void ppc64_elf_init_stub_bfd + (bfd *, struct bfd_link_info *); bfd_boolean ppc64_elf_mark_entry_syms (struct bfd_link_info *); bfd_boolean ppc64_elf_edit_opd @@ -36,7 +38,7 @@ void ppc64_elf_reinit_toc bfd_boolean ppc64_elf_next_input_section (struct bfd_link_info *, asection *); bfd_boolean ppc64_elf_size_stubs - (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma, + (bfd *, struct bfd_link_info *, bfd_signed_vma, asection *(*) (const char *, asection *), void (*) (void)); bfd_boolean ppc64_elf_build_stubs (bfd_boolean, struct bfd_link_info *, char **); diff --git a/bfd/elflink.h b/bfd/elflink.h index f679ab76a6..661b023618 100644 --- a/bfd/elflink.h +++ b/bfd/elflink.h @@ -3029,8 +3029,7 @@ elf_link_sort_relocs (abfd, info, psec) struct bfd_link_info *info; asection **psec; { - bfd *dynobj = elf_hash_table (info)->dynobj; - asection *reldyn, *o; + asection *reldyn; bfd_size_type count, size; size_t i, ret, sort_elt, ext_size; bfd_byte *sort, *s_non_relative, *p; @@ -3039,6 +3038,7 @@ elf_link_sort_relocs (abfd, info, psec) int i2e = bed->s->int_rels_per_ext_rel; void (*swap_in) PARAMS ((bfd *, const bfd_byte *, Elf_Internal_Rela *)); void (*swap_out) PARAMS ((bfd *, const Elf_Internal_Rela *, bfd_byte *)); + struct bfd_link_order *lo; reldyn = bfd_get_section_by_name (abfd, ".rela.dyn"); if (reldyn == NULL || reldyn->_raw_size == 0) @@ -3059,11 +3059,12 @@ elf_link_sort_relocs (abfd, info, psec) count = reldyn->_raw_size / ext_size; size = 0; - for (o = dynobj->sections; o != NULL; o = o->next) - if ((o->flags & (SEC_HAS_CONTENTS|SEC_LINKER_CREATED)) - == (SEC_HAS_CONTENTS|SEC_LINKER_CREATED) - && o->output_section == reldyn) - size += o->_raw_size; + for (lo = reldyn->link_order_head; lo != NULL; lo = lo->next) + if (lo->type == bfd_indirect_link_order) + { + asection *o = lo->u.indirect.section; + size += o->_raw_size; + } if (size != reldyn->_raw_size) return 0; @@ -3079,12 +3080,11 @@ elf_link_sort_relocs (abfd, info, psec) return 0; } - for (o = dynobj->sections; o != NULL; o = o->next) - if ((o->flags & (SEC_HAS_CONTENTS|SEC_LINKER_CREATED)) - == (SEC_HAS_CONTENTS|SEC_LINKER_CREATED) - && o->output_section == reldyn) + for (lo = reldyn->link_order_head; lo != NULL; lo = lo->next) + if (lo->type == bfd_indirect_link_order) { bfd_byte *erel, *erelend; + asection *o = lo->u.indirect.section; erel = o->contents; erelend = o->contents + o->_raw_size; @@ -3121,12 +3121,11 @@ elf_link_sort_relocs (abfd, info, psec) qsort (s_non_relative, (size_t) count - ret, sort_elt, elf_link_sort_cmp2); - for (o = dynobj->sections; o != NULL; o = o->next) - if ((o->flags & (SEC_HAS_CONTENTS|SEC_LINKER_CREATED)) - == (SEC_HAS_CONTENTS|SEC_LINKER_CREATED) - && o->output_section == reldyn) + for (lo = reldyn->link_order_head; lo != NULL; lo = lo->next) + if (lo->type == bfd_indirect_link_order) { bfd_byte *erel, *erelend; + asection *o = lo->u.indirect.section; erel = o->contents; erelend = o->contents + o->_raw_size; |