diff options
| -rw-r--r-- | bfd/ChangeLog | 12 | ||||
| -rw-r--r-- | bfd/elf32-i386.c | 194 | ||||
| -rw-r--r-- | bfd/elf64-x86-64.c | 194 | ||||
| -rw-r--r-- | bfd/elfxx-x86.c | 209 | ||||
| -rw-r--r-- | bfd/elfxx-x86.h | 8 |
5 files changed, 228 insertions, 389 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 37f336c..9220235 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,5 +1,17 @@ 2017-09-01 H.J. Lu <hongjiu.lu@intel.com> + * elf32-i386.c (elf_i386_adjust_dynamic_symbol): Removed. + (elf_backend_adjust_dynamic_symbol): Likewise. + * elf64-x86-64.c (elf_x86_64_adjust_dynamic_symbol): Likewise. + (elf_backend_adjust_dynamic_symbol): Likewise. + * elfxx-x86.c (_bfd_x86_elf_adjust_dynamic_symbol): New function. + (_bfd_x86_elf_link_setup_gnu_properties): Copy is_vxworks. + * elfxx-x86.h (elf_x86_link_hash_table): Add is_vxworks. + (_bfd_x86_elf_adjust_dynamic_symbol): New. + (elf_backend_adjust_dynamic_symbol): Likewise. + +2017-09-01 H.J. Lu <hongjiu.lu@intel.com> + * elfxx-x86.h (elf_x86_plt_layout_table): Fix a typo in comments. diff --git a/bfd/elf32-i386.c b/bfd/elf32-i386.c index 4efc066..c934f28 100644 --- a/bfd/elf32-i386.c +++ b/bfd/elf32-i386.c @@ -1995,199 +1995,6 @@ elf_i386_gc_mark_hook (asection *sec, return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); } -/* Adjust a symbol defined by a dynamic object and referenced by a - regular object. The current definition is in some section of the - dynamic object, but we're not including those sections. We have to - change the definition to something the rest of the link can - understand. */ - -static bfd_boolean -elf_i386_adjust_dynamic_symbol (struct bfd_link_info *info, - struct elf_link_hash_entry *h) -{ - struct elf_x86_link_hash_table *htab; - asection *s, *srel; - struct elf_x86_link_hash_entry *eh; - struct elf_dyn_relocs *p; - - /* STT_GNU_IFUNC symbol must go through PLT. */ - if (h->type == STT_GNU_IFUNC) - { - /* All local STT_GNU_IFUNC references must be treate as local - calls via local PLT. */ - if (h->ref_regular - && SYMBOL_CALLS_LOCAL (info, h)) - { - bfd_size_type pc_count = 0, count = 0; - struct elf_dyn_relocs **pp; - - eh = (struct elf_x86_link_hash_entry *) h; - for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) - { - pc_count += p->pc_count; - p->count -= p->pc_count; - p->pc_count = 0; - count += p->count; - if (p->count == 0) - *pp = p->next; - else - pp = &p->next; - } - - if (pc_count || count) - { - h->non_got_ref = 1; - if (pc_count) - { - /* Increment PLT reference count only for PC-relative - references. */ - h->needs_plt = 1; - if (h->plt.refcount <= 0) - h->plt.refcount = 1; - else - h->plt.refcount += 1; - } - } - } - - if (h->plt.refcount <= 0) - { - h->plt.offset = (bfd_vma) -1; - h->needs_plt = 0; - } - return TRUE; - } - - /* If this is a function, put it in the procedure linkage table. We - will fill in the contents of the procedure linkage table later, - when we know the address of the .got section. */ - if (h->type == STT_FUNC - || h->needs_plt) - { - if (h->plt.refcount <= 0 - || SYMBOL_CALLS_LOCAL (info, h) - || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT - && h->root.type == bfd_link_hash_undefweak)) - { - /* This case can occur if we saw a PLT32 reloc in an input - file, but the symbol was never referred to by a dynamic - object, or if all references were garbage collected. In - such a case, we don't actually need to build a procedure - linkage table, and we can just do a PC32 reloc instead. */ - h->plt.offset = (bfd_vma) -1; - h->needs_plt = 0; - } - - return TRUE; - } - else - /* It's possible that we incorrectly decided a .plt reloc was - needed for an R_386_PC32 reloc to a non-function sym in - check_relocs. We can't decide accurately between function and - non-function syms in check-relocs; Objects loaded later in - the link may change h->type. So fix it now. */ - h->plt.offset = (bfd_vma) -1; - - eh = (struct elf_x86_link_hash_entry *) h; - - /* 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->u.weakdef != NULL) - { - BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined - || h->u.weakdef->root.type == bfd_link_hash_defweak); - h->root.u.def.section = h->u.weakdef->root.u.def.section; - h->root.u.def.value = h->u.weakdef->root.u.def.value; - if (ELIMINATE_COPY_RELOCS - || info->nocopyreloc - || SYMBOL_NO_COPYRELOC (info, eh)) - h->non_got_ref = h->u.weakdef->non_got_ref; - return TRUE; - } - - /* This is a reference to a symbol defined by a dynamic object which - is not a function. */ - - /* If we are creating a shared library, we must presume that the - only references to the symbol are via the global offset table. - For such cases we need not do anything here; the relocations will - be handled correctly by relocate_section. */ - if (!bfd_link_executable (info)) - return TRUE; - - /* If there are no references to this symbol that do not use the - GOT nor R_386_GOTOFF relocation, we don't need to generate a copy - reloc. */ - if (!h->non_got_ref && !eh->gotoff_ref) - return TRUE; - - /* If -z nocopyreloc was given, we won't generate them either. */ - if (info->nocopyreloc || SYMBOL_NO_COPYRELOC (info, eh)) - { - h->non_got_ref = 0; - return TRUE; - } - - htab = elf_x86_hash_table (info, I386_ELF_DATA); - if (htab == NULL) - return FALSE; - - /* If there aren't any dynamic relocs in read-only sections nor - R_386_GOTOFF relocation, then we can keep the dynamic relocs and - avoid the copy reloc. This doesn't work on VxWorks, where we can - not have dynamic relocations (other than copy and jump slot - relocations) in an executable. */ - if (ELIMINATE_COPY_RELOCS - && !eh->gotoff_ref - && get_elf_i386_backend_data (info->output_bfd)->os != is_vxworks) - { - for (p = eh->dyn_relocs; p != NULL; p = p->next) - { - s = p->sec->output_section; - if (s != NULL && (s->flags & SEC_READONLY) != 0) - break; - } - - if (p == NULL) - { - h->non_got_ref = 0; - return TRUE; - } - } - - /* We must allocate the symbol in our .dynbss section, which will - become part of the .bss section of the executable. There will be - an entry for this symbol in the .dynsym section. The dynamic - object will contain position independent code, so all references - from the dynamic object to this symbol will go through the global - offset table. The dynamic linker will use the .dynsym entry to - determine the address it must put in the global offset table, so - both the dynamic object and the regular object will refer to the - same memory location for the variable. */ - - /* We must generate a R_386_COPY reloc to tell the dynamic linker to - copy the initial value out of the dynamic object and into the - runtime process image. */ - if ((h->root.u.def.section->flags & SEC_READONLY) != 0) - { - s = htab->elf.sdynrelro; - srel = htab->elf.sreldynrelro; - } - else - { - s = htab->elf.sdynbss; - srel = htab->elf.srelbss; - } - if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) - { - srel->size += sizeof (Elf32_External_Rel); - h->needs_copy = 1; - } - - return _bfd_elf_adjust_dynamic_copy (info, h, s); -} - /* Allocate space in .plt, .got and associated reloc sections for dynamic relocs. */ @@ -5876,7 +5683,6 @@ elf_i386_link_setup_gnu_properties (struct bfd_link_info *info) #define bfd_elf32_bfd_reloc_name_lookup elf_i386_reloc_name_lookup #define bfd_elf32_get_synthetic_symtab elf_i386_get_synthetic_symtab -#define elf_backend_adjust_dynamic_symbol elf_i386_adjust_dynamic_symbol #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible #define elf_backend_check_relocs elf_i386_check_relocs #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c index bc08f64..ef8ca1a 100644 --- a/bfd/elf64-x86-64.c +++ b/bfd/elf64-x86-64.c @@ -2435,199 +2435,6 @@ elf_x86_64_gc_mark_hook (asection *sec, return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); } -/* Adjust a symbol defined by a dynamic object and referenced by a - regular object. The current definition is in some section of the - dynamic object, but we're not including those sections. We have to - change the definition to something the rest of the link can - understand. */ - -static bfd_boolean -elf_x86_64_adjust_dynamic_symbol (struct bfd_link_info *info, - struct elf_link_hash_entry *h) -{ - struct elf_x86_link_hash_table *htab; - asection *s, *srel; - struct elf_x86_link_hash_entry *eh; - struct elf_dyn_relocs *p; - - /* STT_GNU_IFUNC symbol must go through PLT. */ - if (h->type == STT_GNU_IFUNC) - { - /* All local STT_GNU_IFUNC references must be treate as local - calls via local PLT. */ - if (h->ref_regular - && SYMBOL_CALLS_LOCAL (info, h)) - { - bfd_size_type pc_count = 0, count = 0; - struct elf_dyn_relocs **pp; - - eh = (struct elf_x86_link_hash_entry *) h; - for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) - { - pc_count += p->pc_count; - p->count -= p->pc_count; - p->pc_count = 0; - count += p->count; - if (p->count == 0) - *pp = p->next; - else - pp = &p->next; - } - - if (pc_count || count) - { - h->non_got_ref = 1; - if (pc_count) - { - /* Increment PLT reference count only for PC-relative - references. */ - h->needs_plt = 1; - if (h->plt.refcount <= 0) - h->plt.refcount = 1; - else - h->plt.refcount += 1; - } - } - } - - if (h->plt.refcount <= 0) - { - h->plt.offset = (bfd_vma) -1; - h->needs_plt = 0; - } - return TRUE; - } - - /* If this is a function, put it in the procedure linkage table. We - will fill in the contents of the procedure linkage table later, - when we know the address of the .got section. */ - if (h->type == STT_FUNC - || h->needs_plt) - { - if (h->plt.refcount <= 0 - || SYMBOL_CALLS_LOCAL (info, h) - || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT - && h->root.type == bfd_link_hash_undefweak)) - { - /* This case can occur if we saw a PLT32 reloc in an input - file, but the symbol was never referred to by a dynamic - object, or if all references were garbage collected. In - such a case, we don't actually need to build a procedure - linkage table, and we can just do a PC32 reloc instead. */ - h->plt.offset = (bfd_vma) -1; - h->needs_plt = 0; - } - - return TRUE; - } - else - /* It's possible that we incorrectly decided a .plt reloc was - needed for an R_X86_64_PC32 reloc to a non-function sym in - check_relocs. We can't decide accurately between function and - non-function syms in check-relocs; Objects loaded later in - the link may change h->type. So fix it now. */ - h->plt.offset = (bfd_vma) -1; - - eh = (struct elf_x86_link_hash_entry *) h; - - /* 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->u.weakdef != NULL) - { - BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined - || h->u.weakdef->root.type == bfd_link_hash_defweak); - h->root.u.def.section = h->u.weakdef->root.u.def.section; - h->root.u.def.value = h->u.weakdef->root.u.def.value; - if (ELIMINATE_COPY_RELOCS - || info->nocopyreloc - || SYMBOL_NO_COPYRELOC (info, eh)) - { - h->non_got_ref = h->u.weakdef->non_got_ref; - eh->needs_copy = h->u.weakdef->needs_copy; - } - return TRUE; - } - - /* This is a reference to a symbol defined by a dynamic object which - is not a function. */ - - /* If we are creating a shared library, we must presume that the - only references to the symbol are via the global offset table. - For such cases we need not do anything here; the relocations will - be handled correctly by relocate_section. */ - if (!bfd_link_executable (info)) - return TRUE; - - /* If there are no references to this symbol that do not use the - GOT, we don't need to generate a copy reloc. */ - if (!h->non_got_ref) - return TRUE; - - /* If -z nocopyreloc was given, we won't generate them either. */ - if (info->nocopyreloc || SYMBOL_NO_COPYRELOC (info, eh)) - { - h->non_got_ref = 0; - return TRUE; - } - - if (ELIMINATE_COPY_RELOCS) - { - eh = (struct elf_x86_link_hash_entry *) h; - for (p = eh->dyn_relocs; p != NULL; p = p->next) - { - s = p->sec->output_section; - if (s != NULL && (s->flags & SEC_READONLY) != 0) - break; - } - - /* If we didn't find any dynamic relocs in read-only sections, then - we'll be keeping the dynamic relocs and avoiding the copy reloc. */ - if (p == NULL) - { - h->non_got_ref = 0; - 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. */ - - htab = elf_x86_hash_table (info, X86_64_ELF_DATA); - if (htab == NULL) - return FALSE; - - /* We must generate a R_X86_64_COPY reloc to tell the dynamic linker - to copy the initial value out of the dynamic object and into the - runtime process image. */ - if ((h->root.u.def.section->flags & SEC_READONLY) != 0) - { - s = htab->elf.sdynrelro; - srel = htab->elf.sreldynrelro; - } - else - { - s = htab->elf.sdynbss; - srel = htab->elf.srelbss; - } - if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) - { - const struct elf_backend_data *bed; - bed = get_elf_backend_data (info->output_bfd); - srel->size += bed->s->sizeof_rela; - h->needs_copy = 1; - } - - return _bfd_elf_adjust_dynamic_copy (info, h, s); -} - /* Allocate space in .plt, .got and associated reloc sections for dynamic relocs. */ @@ -6453,7 +6260,6 @@ elf_x86_64_special_sections[]= #define bfd_elf64_bfd_reloc_name_lookup \ elf_x86_64_reloc_name_lookup -#define elf_backend_adjust_dynamic_symbol elf_x86_64_adjust_dynamic_symbol #define elf_backend_relocs_compatible elf_x86_64_relocs_compatible #define elf_backend_check_relocs elf_x86_64_check_relocs #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections diff --git a/bfd/elfxx-x86.c b/bfd/elfxx-x86.c index 91bd615..cb5f614 100644 --- a/bfd/elfxx-x86.c +++ b/bfd/elfxx-x86.c @@ -539,6 +539,211 @@ _bfd_x86_elf_hash_symbol (struct elf_link_hash_entry *h) return _bfd_elf_hash_symbol (h); } +/* 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. */ + +bfd_boolean +_bfd_x86_elf_adjust_dynamic_symbol (struct bfd_link_info *info, + struct elf_link_hash_entry *h) +{ + struct elf_x86_link_hash_table *htab; + asection *s, *srel; + struct elf_x86_link_hash_entry *eh; + struct elf_dyn_relocs *p; + const struct elf_backend_data *bed + = get_elf_backend_data (info->output_bfd); + + /* STT_GNU_IFUNC symbol must go through PLT. */ + if (h->type == STT_GNU_IFUNC) + { + /* All local STT_GNU_IFUNC references must be treate as local + calls via local PLT. */ + if (h->ref_regular + && SYMBOL_CALLS_LOCAL (info, h)) + { + bfd_size_type pc_count = 0, count = 0; + struct elf_dyn_relocs **pp; + + eh = (struct elf_x86_link_hash_entry *) h; + for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) + { + pc_count += p->pc_count; + p->count -= p->pc_count; + p->pc_count = 0; + count += p->count; + if (p->count == 0) + *pp = p->next; + else + pp = &p->next; + } + + if (pc_count || count) + { + h->non_got_ref = 1; + if (pc_count) + { + /* Increment PLT reference count only for PC-relative + references. */ + h->needs_plt = 1; + if (h->plt.refcount <= 0) + h->plt.refcount = 1; + else + h->plt.refcount += 1; + } + } + } + + if (h->plt.refcount <= 0) + { + h->plt.offset = (bfd_vma) -1; + h->needs_plt = 0; + } + return TRUE; + } + + /* If this is a function, put it in the procedure linkage table. We + will fill in the contents of the procedure linkage table later, + when we know the address of the .got section. */ + if (h->type == STT_FUNC + || h->needs_plt) + { + if (h->plt.refcount <= 0 + || SYMBOL_CALLS_LOCAL (info, h) + || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT + && h->root.type == bfd_link_hash_undefweak)) + { + /* This case can occur if we saw a PLT32 reloc in an input + file, but the symbol was never referred to by a dynamic + object, or if all references were garbage collected. In + such a case, we don't actually need to build a procedure + linkage table, and we can just do a PC32 reloc instead. */ + h->plt.offset = (bfd_vma) -1; + h->needs_plt = 0; + } + + return TRUE; + } + else + /* It's possible that we incorrectly decided a .plt reloc was needed + * for an R_386_PC32/R_X86_64_PC32 reloc to a non-function sym in + check_relocs. We can't decide accurately between function and + non-function syms in check-relocs; Objects loaded later in + the link may change h->type. So fix it now. */ + h->plt.offset = (bfd_vma) -1; + + eh = (struct elf_x86_link_hash_entry *) h; + + /* 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->u.weakdef != NULL) + { + BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined + || h->u.weakdef->root.type == bfd_link_hash_defweak); + h->root.u.def.section = h->u.weakdef->root.u.def.section; + h->root.u.def.value = h->u.weakdef->root.u.def.value; + if (ELIMINATE_COPY_RELOCS + || info->nocopyreloc + || SYMBOL_NO_COPYRELOC (info, eh)) + { + /* NB: needs_copy is always 0 for i386. */ + h->non_got_ref = h->u.weakdef->non_got_ref; + eh->needs_copy = h->u.weakdef->needs_copy; + } + return TRUE; + } + + /* This is a reference to a symbol defined by a dynamic object which + is not a function. */ + + /* If we are creating a shared library, we must presume that the + only references to the symbol are via the global offset table. + For such cases we need not do anything here; the relocations will + be handled correctly by relocate_section. */ + if (!bfd_link_executable (info)) + return TRUE; + + /* If there are no references to this symbol that do not use the + GOT nor R_386_GOTOFF relocation, we don't need to generate a copy + reloc. NB: gotoff_ref is always 0 for x86-64. */ + if (!h->non_got_ref && !eh->gotoff_ref) + return TRUE; + + /* If -z nocopyreloc was given, we won't generate them either. */ + if (info->nocopyreloc || SYMBOL_NO_COPYRELOC (info, eh)) + { + h->non_got_ref = 0; + return TRUE; + } + + htab = elf_x86_hash_table (info, bed->target_id); + if (htab == NULL) + return FALSE; + + /* If there aren't any dynamic relocs in read-only sections nor + R_386_GOTOFF relocation, then we can keep the dynamic relocs and + avoid the copy reloc. This doesn't work on VxWorks, where we can + not have dynamic relocations (other than copy and jump slot + relocations) in an executable. */ + if (ELIMINATE_COPY_RELOCS + && (bed->target_id == X86_64_ELF_DATA + || (!eh->gotoff_ref + && !htab->is_vxworks))) + { + for (p = eh->dyn_relocs; p != NULL; p = p->next) + { + s = p->sec->output_section; + if (s != NULL && (s->flags & SEC_READONLY) != 0) + break; + } + + /* If we didn't find any dynamic relocs in read-only sections, + then we'll be keeping the dynamic relocs and avoiding the copy + reloc. */ + if (p == NULL) + { + h->non_got_ref = 0; + return TRUE; + } + } + + /* We must allocate the symbol in our .dynbss section, which will + become part of the .bss section of the executable. There will be + an entry for this symbol in the .dynsym section. The dynamic + object will contain position independent code, so all references + from the dynamic object to this symbol will go through the global + offset table. The dynamic linker will use the .dynsym entry to + determine the address it must put in the global offset table, so + both the dynamic object and the regular object will refer to the + same memory location for the variable. */ + + /* We must generate a R_386_COPY/R_X86_64_COPY reloc to tell the + dynamic linker to copy the initial value out of the dynamic object + and into the runtime process image. */ + if ((h->root.u.def.section->flags & SEC_READONLY) != 0) + { + s = htab->elf.sdynrelro; + srel = htab->elf.sreldynrelro; + } + else + { + s = htab->elf.sdynbss; + srel = htab->elf.srelbss; + } + if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) + { + srel->size += ((bed->target_id == I386_ELF_DATA) + ? sizeof (Elf32_External_Rel) + : bed->s->sizeof_rela); + h->needs_copy = 1; + } + + return _bfd_elf_adjust_dynamic_copy (info, h, s); +} + static bfd_vma elf_i386_get_plt_got_vma (struct elf_x86_plt *plt_p ATTRIBUTE_UNUSED, bfd_vma off, @@ -997,6 +1202,8 @@ error_alignment: if (htab == NULL) return pbfd; + htab->is_vxworks = plt_layout->is_vxworks; + use_ibt_plt = info->ibtplt || info->ibt; if (!use_ibt_plt && pbfd != NULL) { @@ -1119,7 +1326,7 @@ error_alignment: if (dynobj == NULL) return pbfd; - if (plt_layout->is_vxworks + if (htab->is_vxworks && !elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2)) { diff --git a/bfd/elfxx-x86.h b/bfd/elfxx-x86.h index feef0e7..8f8fbea 100644 --- a/bfd/elfxx-x86.h +++ b/bfd/elfxx-x86.h @@ -287,6 +287,9 @@ struct elf_x86_link_hash_table to read-only sections. */ bfd_boolean readonly_dynrelocs_against_ifunc; + /* TRUE if this is a VxWorks x86 target. */ + bfd_boolean is_vxworks; + /* The (unloaded but important) .rel.plt.unloaded section on VxWorks. This is used for i386 only. */ asection *srelplt2; @@ -416,6 +419,9 @@ extern bfd_boolean _bfd_x86_elf_fixup_symbol extern bfd_boolean _bfd_x86_elf_hash_symbol (struct elf_link_hash_entry *); +extern bfd_boolean _bfd_x86_elf_adjust_dynamic_symbol + (struct bfd_link_info *, struct elf_link_hash_entry *); + extern long _bfd_x86_elf_get_synthetic_symtab (bfd *, long, long, bfd_vma, struct elf_x86_plt [], asymbol **, asymbol **); @@ -452,6 +458,8 @@ extern bfd * _bfd_x86_elf_link_setup_gnu_properties _bfd_x86_elf_fixup_symbol #define elf_backend_hash_symbol \ _bfd_x86_elf_hash_symbol +#define elf_backend_adjust_dynamic_symbol \ + _bfd_x86_elf_adjust_dynamic_symbol #define elf_backend_omit_section_dynsym \ ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true) #define elf_backend_parse_gnu_properties \ |