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Fix load of archive element with common def for -u sym 

* linker.c (generic_link_check_archive_element): Move handling
	of command link -u symbols with a common symbol def to the
	code handling non-common symbols so that archive element symbols
	are loaded.  Use generic_link_add_object_symbols.
This commit is contained in:
Alan Modra 2014-08-05 10:48:47 +09:30
parent 13e570f80c
commit 02eb0a49bc
2 changed files with 16 additions and 33 deletions
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7
bfd/ChangeLog
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@ -1,3 +1,10 @@
2014-08-05 Alan Modra <amodra@gmail.com>
* linker.c (generic_link_check_archive_element): Move handling
of command link -u symbols with a common symbol def to the
code handling non-common symbols so that archive element symbols
are loaded. Use generic_link_add_object_symbols.
2014-08-05 Alan Modra <amodra@gmail.com>
PR 13557

42
bfd/linker.c
View File

@ -1120,29 +1120,21 @@ generic_link_check_archive_element (bfd *abfd,
/* P is a symbol we are looking for. */
if (! bfd_is_com_section (p->section))
if (! bfd_is_com_section (p->section)
|| (h->type == bfd_link_hash_undefined
&& h->u.undef.abfd == NULL))
{
bfd_size_type symcount;
asymbol **symbols;
bfd *oldbfd = abfd;
/* This object file defines this symbol, so pull it in. */
/* P is not a common symbol, or an undefined reference was
created from outside BFD such as from a linker -u option.
This object file defines the symbol, so pull it in. */
*pneeded = TRUE;
if (!(*info->callbacks
->add_archive_element) (info, abfd, bfd_asymbol_name (p),
&abfd))
return FALSE;
/* Potentially, the add_archive_element hook may have set a
substitute BFD for us. */
if (abfd != oldbfd
&& !bfd_generic_link_read_symbols (abfd))
return FALSE;
symcount = _bfd_generic_link_get_symcount (abfd);
symbols = _bfd_generic_link_get_symbols (abfd);
if (! generic_link_add_symbol_list (abfd, info, symcount,
symbols, collect))
return FALSE;
*pneeded = TRUE;
return TRUE;
return generic_link_add_object_symbols (abfd, info, collect);
}
/* P is a common symbol. */
@ -1153,23 +1145,6 @@ generic_link_check_archive_element (bfd *abfd,
bfd_vma size;
unsigned int power;
symbfd = h->u.undef.abfd;
if (symbfd == NULL)
{
/* This symbol was created as undefined from outside
BFD. We assume that we should link in the object
file. This is for the -u option in the linker. */
if (!(*info->callbacks
->add_archive_element) (info, abfd, bfd_asymbol_name (p),
&abfd))
return FALSE;
/* Potentially, the add_archive_element hook may have set a
substitute BFD for us. But no symbols are going to get
registered by anything we're returning to from here. */
*pneeded = TRUE;
return TRUE;
}
/* Turn the symbol into a common symbol but do not link in
the object file. This is how a.out works. Object
formats that require different semantics must implement
@ -1177,6 +1152,7 @@ generic_link_check_archive_element (bfd *abfd,
undefs list. We add the section to a common section
attached to symbfd to ensure that it is in a BFD which
will be linked in. */
symbfd = h->u.undef.abfd;
h->type = bfd_link_hash_common;
h->u.c.p = (struct bfd_link_hash_common_entry *)
bfd_hash_allocate (&info->hash->table,