From: Richard Sandiford Date: Sat, 25 Feb 2006 09:23:30 +0000 (+0000) Subject: bfd/ X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7325306f39112471924c0f2bf92734473686ae58;p=binutils-gdb.git bfd/ * elf-bfd.h (elf_link_hash_table): Add hplt field. * elflink.c (_bfd_elf_create_dynamic_sections): Initialize it. * elf-m10300.c (_bfd_mn10300_elf_create_got_section): Likewise. * elf32-frv.c (_frv_create_got_section): Likewise. * elf32-m32r.c (m32r_elf_create_dynamic_sections): Likewise. * elf32-sh.c (sh_elf_create_dynamic_sections): Likewise. * elf64-alpha.c (elf64_alpha_create_dynamic_sections): Likewise. * elf64-sh64.c (sh64_elf64_create_dynamic_sections): Likewise. * elf32-i386.c (elf_i386_link_hash_table): Remove hgot and hplt. (elf_i386_link_hash_table_create): Don't initialize them. (elf_i386_size_dynamic_sections): Use the generic ELF hplt and hgot fields. (elf_i386_finish_dynamic_symbol): Likewise. * elf32-ppc.c (ppc_elf_link_hash_table): Remove hplt. (ppc_elf_size_dynamic_sections): Use the generic ELF hplt fields. (ppc_elf_finish_dynamic_symbol): Likewise. --- diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 646a8492f18..f7cbecbd10c 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,22 @@ +2006-02-25 Richard Sandiford + + * elf-bfd.h (elf_link_hash_table): Add hplt field. + * elflink.c (_bfd_elf_create_dynamic_sections): Initialize it. + * elf-m10300.c (_bfd_mn10300_elf_create_got_section): Likewise. + * elf32-frv.c (_frv_create_got_section): Likewise. + * elf32-m32r.c (m32r_elf_create_dynamic_sections): Likewise. + * elf32-sh.c (sh_elf_create_dynamic_sections): Likewise. + * elf64-alpha.c (elf64_alpha_create_dynamic_sections): Likewise. + * elf64-sh64.c (sh64_elf64_create_dynamic_sections): Likewise. + * elf32-i386.c (elf_i386_link_hash_table): Remove hgot and hplt. + (elf_i386_link_hash_table_create): Don't initialize them. + (elf_i386_size_dynamic_sections): Use the generic ELF hplt and + hgot fields. + (elf_i386_finish_dynamic_symbol): Likewise. + * elf32-ppc.c (ppc_elf_link_hash_table): Remove hplt. + (ppc_elf_size_dynamic_sections): Use the generic ELF hplt fields. + (ppc_elf_finish_dynamic_symbol): Likewise. + 2006-02-24 DJ Delorie * elf32-m32c.c (m32c_elf_howto_table): Add relaxation relocs. diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h index 4181e368bd6..76be811ec29 100644 --- a/bfd/elf-bfd.h +++ b/bfd/elf-bfd.h @@ -378,6 +378,9 @@ struct elf_link_hash_table /* The _GLOBAL_OFFSET_TABLE_ symbol. */ struct elf_link_hash_entry *hgot; + /* The _PROCEDURE_LINKAGE_TABLE_ symbol. */ + struct elf_link_hash_entry *hplt; + /* A pointer to information used to merge SEC_MERGE sections. */ void *merge_info; diff --git a/bfd/elf-m10300.c b/bfd/elf-m10300.c index 86ffb78a36c..5b14e927f82 100644 --- a/bfd/elf-m10300.c +++ b/bfd/elf-m10300.c @@ -582,10 +582,14 @@ _bfd_mn10300_elf_create_got_section (abfd, info) /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the .plt section. */ - if (bed->want_plt_sym - && !_bfd_elf_define_linkage_sym (abfd, info, s, - "_PROCEDURE_LINKAGE_TABLE_")) - return FALSE; + if (bed->want_plt_sym) + { + h = _bfd_elf_define_linkage_sym (abfd, info, s, + "_PROCEDURE_LINKAGE_TABLE_"); + elf_hash_table (info)->hplt = h; + if (h == NULL) + return FALSE; + } s = bfd_make_section_with_flags (abfd, ".got", flags); if (s == NULL diff --git a/bfd/elf32-frv.c b/bfd/elf32-frv.c index e0c512077d2..7126ed46c38 100644 --- a/bfd/elf32-frv.c +++ b/bfd/elf32-frv.c @@ -4398,10 +4398,14 @@ _frv_create_got_section (bfd *abfd, struct bfd_link_info *info) /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the .plt section. */ - if (bed->want_plt_sym - && !_bfd_elf_define_linkage_sym (abfd, info, s, - "_PROCEDURE_LINKAGE_TABLE_")) - return FALSE; + if (bed->want_plt_sym) + { + h = _bfd_elf_define_linkage_sym (abfd, info, s, + "_PROCEDURE_LINKAGE_TABLE_"); + elf_hash_table (info)->hplt = h; + if (h == NULL) + return FALSE; + } /* FRV-specific: we want rel relocations for the plt. */ s = bfd_make_section_with_flags (abfd, ".rel.plt", diff --git a/bfd/elf32-i386.c b/bfd/elf32-i386.c index 64e5fb0d2af..eb701a14610 100644 --- a/bfd/elf32-i386.c +++ b/bfd/elf32-i386.c @@ -647,9 +647,6 @@ struct elf_i386_link_hash_table /* The (unloaded but important) .rel.plt.unloaded section on VxWorks. */ asection *srelplt2; - /* Short-cuts to frequently used symbols for VxWorks targets. */ - struct elf_link_hash_entry *hgot, *hplt; - /* True if the target system is VxWorks. */ int is_vxworks; @@ -739,8 +736,6 @@ elf_i386_link_hash_table_create (bfd *abfd) ret->sym_sec.abfd = NULL; ret->is_vxworks = 0; ret->srelplt2 = NULL; - ret->hgot = NULL; - ret->hplt = NULL; ret->plt0_pad_byte = 0; return &ret->elf.root; @@ -2003,23 +1998,17 @@ elf_i386_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (htab->is_vxworks) { - /* Save the GOT and PLT symbols in the hash table for easy access. - Mark them as having relocations; they might not, but we won't - know for sure until we build the GOT in finish_dynamic_symbol. */ - - htab->hgot = elf_link_hash_lookup (elf_hash_table (info), - "_GLOBAL_OFFSET_TABLE_", - FALSE, FALSE, FALSE); - if (htab->hgot) - htab->hgot->indx = -2; - htab->hplt = elf_link_hash_lookup (elf_hash_table (info), - "_PROCEDURE_LINKAGE_TABLE_", - FALSE, FALSE, FALSE); - if (htab->hplt) - htab->hplt->indx = -2; - - if (htab->is_vxworks && htab->hplt && htab->splt->flags & SEC_CODE) - htab->hplt->type = STT_FUNC; + /* Mark the GOT and PLT symbols as having relocations; they might + not, but we won't know for sure until we build the GOT in + finish_dynamic_symbol. */ + if (htab->elf.hgot) + htab->elf.hgot->indx = -2; + if (htab->elf.hplt) + { + htab->elf.hplt->indx = -2; + if (htab->splt->flags & SEC_CODE) + htab->elf.hplt->type = STT_FUNC; + } } /* Allocate global sym .plt and .got entries, and space for global @@ -2055,7 +2044,7 @@ elf_i386_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, we've exported dynamic symbols from them we must leave them. It's too late to tell BFD to get rid of the symbols. */ - if (htab->hplt != NULL) + if (htab->elf.hplt != NULL) strip_section = FALSE; } else if (strncmp (bfd_get_section_name (dynobj, s), ".rel", 4) == 0) @@ -3524,7 +3513,7 @@ elf_i386_finish_dynamic_symbol (bfd *output_bfd, rel.r_offset = (htab->splt->output_section->vma + htab->splt->output_offset + h->plt.offset + 2), - rel.r_info = ELF32_R_INFO (htab->hgot->indx, R_386_32); + rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_386_32); bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); /* Create the R_386_32 relocation referencing the beginning of @@ -3532,7 +3521,7 @@ elf_i386_finish_dynamic_symbol (bfd *output_bfd, rel.r_offset = (htab->sgotplt->output_section->vma + htab->sgotplt->output_offset + got_offset); - rel.r_info = ELF32_R_INFO (htab->hplt->indx, R_386_32); + rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_386_32); bfd_elf32_swap_reloc_out (output_bfd, &rel, loc + sizeof (Elf32_External_Rel)); } @@ -3786,28 +3775,21 @@ elf_i386_finish_dynamic_sections (bfd *output_bfd, if (htab->is_vxworks) { Elf_Internal_Rela rel; - struct elf_link_hash_entry *hgot; - - /* The VxWorks GOT is relocated by the dynamic linker. - Therefore, we must emit relocations rather than - simply computing the values now. */ - hgot = elf_link_hash_lookup (elf_hash_table (info), - "_GLOBAL_OFFSET_TABLE_", - FALSE, FALSE, FALSE); + /* Generate a relocation for _GLOBAL_OFFSET_TABLE_ + 4. On IA32 we use REL relocations so the addend goes in the PLT directly. */ rel.r_offset = (htab->splt->output_section->vma + htab->splt->output_offset + 2); - rel.r_info = ELF32_R_INFO (hgot->indx, R_386_32); + rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_386_32); bfd_elf32_swap_reloc_out (output_bfd, &rel, htab->srelplt2->contents); /* Generate a relocation for _GLOBAL_OFFSET_TABLE_ + 8. */ rel.r_offset = (htab->splt->output_section->vma + htab->splt->output_offset + 8); - rel.r_info = ELF32_R_INFO (hgot->indx, R_386_32); + rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_386_32); bfd_elf32_swap_reloc_out (output_bfd, &rel, htab->srelplt2->contents + sizeof (Elf32_External_Rel)); @@ -3835,12 +3817,12 @@ elf_i386_finish_dynamic_sections (bfd *output_bfd, { Elf_Internal_Rela rel; bfd_elf32_swap_reloc_in (output_bfd, p, &rel); - rel.r_info = ELF32_R_INFO (htab->hgot->indx, R_386_32); + rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_386_32); bfd_elf32_swap_reloc_out (output_bfd, &rel, p); p += sizeof (Elf32_External_Rel); bfd_elf32_swap_reloc_in (output_bfd, p, &rel); - rel.r_info = ELF32_R_INFO (htab->hplt->indx, R_386_32); + rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_386_32); bfd_elf32_swap_reloc_out (output_bfd, &rel, p); p += sizeof (Elf32_External_Rel); } diff --git a/bfd/elf32-m32r.c b/bfd/elf32-m32r.c index 6a8c5bfdaa2..672d5f47311 100644 --- a/bfd/elf32-m32r.c +++ b/bfd/elf32-m32r.c @@ -1668,6 +1668,7 @@ m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) h = (struct elf_link_hash_entry *) bh; h->def_regular = 1; h->type = STT_OBJECT; + htab->root.hplt = h; if (info->shared && ! bfd_elf_link_record_dynamic_symbol (info, h)) diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c index 134b960db96..ec407fdb402 100644 --- a/bfd/elf32-ppc.c +++ b/bfd/elf32-ppc.c @@ -2365,9 +2365,6 @@ struct ppc_elf_link_hash_table /* The .got.plt section (VxWorks only)*/ asection *sgotplt; - /* Short-cuts to frequently used symbols on VxWorks targets. */ - struct elf_link_hash_entry *hplt; - /* True if the target system is VxWorks. */ int is_vxworks; @@ -4762,21 +4759,17 @@ ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (htab->is_vxworks) { - /* Save the PLT symbol in the hash table for easy access. - Mark GOT and PLT syms as having relocations; they might not, - but we won't know for sure until we build the GOT in + /* Mark the GOT and PLT symbols as having relocations; they might + not, but we won't know for sure until we build the GOT in finish_dynamic_symbol. */ - if (htab->elf.hgot) htab->elf.hgot->indx = -2; - htab->hplt = elf_link_hash_lookup (elf_hash_table (info), - "_PROCEDURE_LINKAGE_TABLE_", - FALSE, FALSE, FALSE); - if (htab->hplt) - htab->hplt->indx = -2; - /* If the PLT is executable then give the symbol function type. */ - if (htab->hplt && htab->plt->flags & SEC_CODE) - htab->hplt->type = STT_FUNC; + if (htab->elf.hplt) + { + htab->elf.hplt->indx = -2; + if (htab->plt->flags & SEC_CODE) + htab->elf.hplt->type = STT_FUNC; + } } /* Allocate space for global sym dynamic relocs. */ @@ -4867,7 +4860,7 @@ ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, /* We'd like to strip these sections if they aren't needed, but if we've exported dynamic symbols from them we must leave them. It's too late to tell BFD to get rid of the symbols. */ - if ((s == htab->plt || s == htab->got) && htab->hplt != NULL) + if ((s == htab->plt || s == htab->got) && htab->elf.hplt != NULL) strip_section = FALSE; /* Strip this section if we don't need it; see the comment below. */ @@ -6880,7 +6873,7 @@ ppc_elf_finish_dynamic_symbol (bfd *output_bfd, rela.r_offset = (htab->sgotplt->output_section->vma + htab->sgotplt->output_offset + got_offset); - rela.r_info = ELF32_R_INFO (htab->hplt->indx, + rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32); rela.r_addend = ent->plt.offset + 16; bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); @@ -7248,7 +7241,7 @@ ppc_elf_finish_dynamic_sections (bfd *output_bfd, loc += sizeof (Elf32_External_Rela); bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); - rel.r_info = ELF32_R_INFO (htab->hplt->indx, R_PPC_ADDR32); + rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32); bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); loc += sizeof (Elf32_External_Rela); } diff --git a/bfd/elf32-sh.c b/bfd/elf32-sh.c index fbd04704814..25077cc82ff 100644 --- a/bfd/elf32-sh.c +++ b/bfd/elf32-sh.c @@ -3726,6 +3726,7 @@ sh_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) h = (struct elf_link_hash_entry *) bh; h->def_regular = 1; h->type = STT_OBJECT; + htab->root.hplt = h; if (info->shared && ! bfd_elf_link_record_dynamic_symbol (info, h)) diff --git a/bfd/elf64-alpha.c b/bfd/elf64-alpha.c index 0472d7ff49d..b6cbf23d648 100644 --- a/bfd/elf64-alpha.c +++ b/bfd/elf64-alpha.c @@ -1244,8 +1244,10 @@ elf64_alpha_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the .plt section. */ - if (!_bfd_elf_define_linkage_sym (abfd, info, s, - "_PROCEDURE_LINKAGE_TABLE_")) + h = _bfd_elf_define_linkage_sym (abfd, info, s, + "_PROCEDURE_LINKAGE_TABLE_"); + elf_hash_table (info)->hplt = h; + if (h == NULL) return FALSE; flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY diff --git a/bfd/elf64-sh64.c b/bfd/elf64-sh64.c index df157237148..d9154783094 100644 --- a/bfd/elf64-sh64.c +++ b/bfd/elf64-sh64.c @@ -3240,6 +3240,7 @@ sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) h = (struct elf_link_hash_entry *) bh; h->def_regular = 1; h->type = STT_OBJECT; + elf_hash_table (info)->hplt = h; if (info->shared && ! bfd_elf_link_record_dynamic_symbol (info, h)) diff --git a/bfd/elflink.c b/bfd/elflink.c index 9a99b067b0d..a95ac44c0e9 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -263,6 +263,7 @@ bfd_boolean _bfd_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) { flagword flags, pltflags; + struct elf_link_hash_entry *h; asection *s; const struct elf_backend_data *bed = get_elf_backend_data (abfd); @@ -288,10 +289,14 @@ _bfd_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the .plt section. */ - if (bed->want_plt_sym - && !_bfd_elf_define_linkage_sym (abfd, info, s, - "_PROCEDURE_LINKAGE_TABLE_")) - return FALSE; + if (bed->want_plt_sym) + { + h = _bfd_elf_define_linkage_sym (abfd, info, s, + "_PROCEDURE_LINKAGE_TABLE_"); + elf_hash_table (info)->hplt = h; + if (h == NULL) + return FALSE; + } s = bfd_make_section_with_flags (abfd, (bed->default_use_rela_p