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* elflink.h (elf_adjust_dynamic_symbol): Warn on an attempt to

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link against a dynamic symbol with no type or size.
This commit is contained in:
Ian Lance Taylor
1998-12-02 05:59:07 +00:00
parent 156eb5bc46
commit 3ac83be0c7
1 changed files with 12 additions and 0 deletions
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12
bfd/elflink.h
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@ -3119,6 +3119,18 @@ elf_adjust_dynamic_symbol (h, data)
} }
} }
/* If a symbol has no type and no size and does not require a PLT
entry, then we are probably about to do the wrong thing here: we
are probably going to create a COPY reloc for an empty object.
This case can arise when a shared object is built with assembly
code, and the assembly code fails to set the symbol type. */
if (h->size == 0
&& h->type == STT_NOTYPE
&& (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) == 0)
(*_bfd_error_handler)
(_("warning: type and size of dynamic symbol `%s' are not defined"),
h->root.root.string);
dynobj = elf_hash_table (eif->info)->dynobj; dynobj = elf_hash_table (eif->info)->dynobj;
bed = get_elf_backend_data (dynobj); bed = get_elf_backend_data (dynobj);
if (! (*bed->elf_backend_adjust_dynamic_symbol) (eif->info, h)) if (! (*bed->elf_backend_adjust_dynamic_symbol) (eif->info, h))