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* elf32-ppc.c (ppc_elf_adjust_dynamic_symbol): Ignore dynamic 

_SDA_BASE_ and _SDA2_BASE_ symbols.
	* elflink.c (_bfd_elf_provide_symbol): Correct comment.  Define
	sym if not def_regular.
	(_bfd_elf_provide_section_bound_symbols): Similarly.
This commit is contained in:
Alan Modra 2005-06-30 08:11:15 +00:00
parent b753922c0b
commit b116d4a7eb
3 changed files with 34 additions and 12 deletions
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8
bfd/ChangeLog
View File

@ -1,3 +1,11 @@
2005-06-30 Alan Modra <amodra@bigpond.net.au>
* elf32-ppc.c (ppc_elf_adjust_dynamic_symbol): Ignore dynamic
_SDA_BASE_ and _SDA2_BASE_ symbols.
* elflink.c (_bfd_elf_provide_symbol): Correct comment. Define
sym if not def_regular.
(_bfd_elf_provide_section_bound_symbols): Similarly.
2005-06-30 Ben Elliston <bje@gnu.org>
* config.bfd: Mark as obsolete:

18
bfd/elf32-ppc.c
View File

@ -3945,6 +3945,24 @@ ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
/* This is a reference to a symbol defined by a dynamic object which
is not a function. */
/* First, a fudge for old shared libs that export some symbols they
should not. */
if (!h->def_regular
&& (strcmp (h->root.root.string, "_SDA_BASE_") == 0
|| strcmp (h->root.root.string, "_SDA2_BASE_") == 0))
{
/* These symbols will be defined later, as if they were defined in
a linker script. We don't want to use a definition in a shared
object. */
const struct elf_backend_data *bed;
bed = get_elf_backend_data (htab->elf.dynobj);
(*bed->elf_backend_hide_symbol) (info, h, TRUE);
h->root.type = bfd_link_hash_undefined;
h->root.u.undef.abfd = htab->elf.dynobj;
return TRUE;
}
/* 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

20
bfd/elflink.c
View File

@ -9836,8 +9836,9 @@ bfd_elf_set_symbol (struct elf_link_hash_entry *h, bfd_vma val,
h->forced_local = 1;
}
/* Set NAME to VAL if the symbol exists and is undefined. If val is NULL
it is an absolute symbol, otherwise it is relative to that section. */
/* Set NAME to VAL if the symbol exists and is not defined in a regular
object file. If S is NULL it is an absolute symbol, otherwise it is
relative to that section. */
void
_bfd_elf_provide_symbol (struct bfd_link_info *info, const char *name,
@ -9847,13 +9848,12 @@ _bfd_elf_provide_symbol (struct bfd_link_info *info, const char *name,
h = elf_link_hash_lookup (elf_hash_table (info), name, FALSE, FALSE,
FALSE);
if (h != NULL && (h->root.type == bfd_link_hash_undefined
|| h->root.type == bfd_link_hash_undefweak))
if (h != NULL && !h->def_regular)
bfd_elf_set_symbol (h, val, s);
}
/* Set START and END to boundaries of SEC if they exist and are
undefined. */
/* Set START and END to boundaries of SEC if they exist and are not
defined in regular object files. */
void
_bfd_elf_provide_section_bound_symbols (struct bfd_link_info *info,
@ -9868,15 +9868,11 @@ _bfd_elf_provide_section_bound_symbols (struct bfd_link_info *info,
/* Check if we need them or not first. */
hs = elf_link_hash_lookup (elf_hash_table (info), start, FALSE,
FALSE, FALSE);
do_start = (hs != NULL
&& (hs->root.type == bfd_link_hash_undefined
|| hs->root.type == bfd_link_hash_undefweak));
do_start = hs != NULL && !hs->def_regular;
he = elf_link_hash_lookup (elf_hash_table (info), end, FALSE,
FALSE, FALSE);
do_end = (he != NULL
&& (he->root.type == bfd_link_hash_undefined
|| he->root.type == bfd_link_hash_undefweak));
do_end = he != NULL && !he->def_regular;
if (!do_start && !do_end)
return;