S/390: Fix (some) PIE+undef weak failures
This fixes these failures on 64 bit which currently occur when running the Binutils testsuite with a default PIE compiler. < FAIL: Build rdynamic-1 < FAIL: Build dynamic-1 < FAIL: Build pr22269-1 bfd/ChangeLog: 2017-12-13 Andreas Krebbel <krebbel@linux.vnet.ibm.com> * elf64-s390.c (elf_s390_adjust_dynamic_symbol): Use UNDEFWEAK_NO_DYNAMIC_RELOC. (allocate_dynrelocs): Likewise. (elf_s390_relocate_section): Check resolved_to_zero. (elf_s390_finish_dynamic_symbol): Don't generate runtime reloc if UNDEFWEAK_NO_DYNAMIC_RELOC.
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@ -1433,8 +1433,7 @@ elf_s390_adjust_dynamic_symbol (struct bfd_link_info *info,
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{
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if (h->plt.refcount <= 0
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|| SYMBOL_CALLS_LOCAL (info, h)
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|| (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
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&& h->root.type == bfd_link_hash_undefweak))
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|| UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
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{
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/* This case can occur if we saw a PLT32 reloc in an input
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file, but the symbol was never referred to by a dynamic
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@ -1669,8 +1668,7 @@ allocate_dynrelocs (struct elf_link_hash_entry *h,
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htab->elf.srelgot->size += sizeof (Elf64_External_Rela);
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else if (tls_type == GOT_TLS_GD)
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htab->elf.srelgot->size += 2 * sizeof (Elf64_External_Rela);
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else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
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|| h->root.type != bfd_link_hash_undefweak)
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else if (!UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)
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&& (bfd_link_pic (info)
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|| WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
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htab->elf.srelgot->size += sizeof (Elf64_External_Rela);
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@ -2313,8 +2311,7 @@ elf_s390_relocate_section (bfd *output_bfd,
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h)
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|| (bfd_link_pic (info)
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&& SYMBOL_REFERENCES_LOCAL (info, h))
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|| (ELF_ST_VISIBILITY (h->other)
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&& h->root.type == bfd_link_hash_undefweak))
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|| resolved_to_zero)
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{
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/* This is actually a static link, or it is a
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-Bsymbolic link and the symbol is defined
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@ -3417,6 +3414,9 @@ elf_s390_finish_dynamic_symbol (bfd *output_bfd,
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else if (bfd_link_pic (info)
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&& SYMBOL_REFERENCES_LOCAL (info, h))
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{
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if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
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return TRUE;
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/* If this is a static link, or it is a -Bsymbolic link and
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the symbol is defined locally or was forced to be local
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because of a version file, we just want to emit a
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