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2000-05-30 H.J. Lu <hjl@gnu.org>

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* elflink.c (_bfd_elf_link_record_dynamic_symbol): Clear the
	visibility bits if the symbol is undefined. Correctly handle
	weak undefined symbols with hidden and internal attributes.

	* elflink.h (elf_link_add_object_symbols): Always turn the
	symbol into local if it has the hidden or internal attribute.
This commit is contained in:
H.J. Lu 2000-05-30 20:51:36 +00:00
parent 896ad91016
commit 38048eb911
3 changed files with 20 additions and 9 deletions
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9
bfd/ChangeLog
View File

@ -1,3 +1,12 @@
2000-05-30 H.J. Lu <hjl@gnu.org>
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Clear the
visibility bits if the symbol is undefined. Correctly handle
weak undefined symbols with hidden and internal attributes.
* elflink.h (elf_link_add_object_symbols): Always turn the
symbol into local if it has the hidden or internal attribute.
2000-05-29 Philip Blundell <philb@gnu.org>
* ppcboot.c: Add packed attribute if compiling with GCC.

12
bfd/elflink.c
View File

@ -235,10 +235,16 @@ _bfd_elf_link_record_dynamic_symbol (info, h)
(*info->callbacks->undefined_symbol)
(info, name, abfd, bfd_und_section_ptr, 0, true);
/* We have flaged a fatal error. We now treat this as
a normal symbol to avoid further error messages. */
h->other ^= ELF_ST_VISIBILITY (h->other);
}
else if (h->root.type != bfd_link_hash_undefweak)
{
h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL;
return true;
}
h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL;
return true;
default:
break;

8
bfd/elflink.h
View File

@ -890,7 +890,6 @@ elf_link_add_object_symbols (abfd, info)
Elf_External_Sym *esym;
Elf_External_Sym *esymend;
struct elf_backend_data *bed;
boolean visibility_changed = false;
bed = get_elf_backend_data (abfd);
add_symbol_hook = bed->elf_add_symbol_hook;
@ -1581,10 +1580,7 @@ elf_link_add_object_symbols (abfd, info)
unsigned char symvis = ELF_ST_VISIBILITY (sym.st_other);
if (symvis && (hvis > symvis || hvis == 0))
{
visibility_changed = true;
h->other = sym.st_other;
}
h->other = sym.st_other;
/* If neither has visibility, use the st_other of the
definition. This is an arbitrary choice, since the
@ -1855,7 +1851,7 @@ elf_link_add_object_symbols (abfd, info)
goto error_return;
}
}
else if (dynsym && h->dynindx != -1 && visibility_changed)
else if (dynsym && h->dynindx != -1)
/* If the symbol already has a dynamic index, but
visibility says it should not be visible, turn it into
a local symbol. */