PATCH: ld/3290: "ld -s" leaves absolute symbol in DSO
H. J. Lu
hjl@lucon.org
Sun Oct 1 14:14:00 GMT 2006
On Fri, Sep 29, 2006 at 05:20:11PM -0700, H. J. Lu wrote:
> "gcc -g -feliminate-dwarf2-dups" may generate symbols relative to debug
> section. When "ld -s" removes debug section, it changes those symbols
> to absolute. The resulting shared library may not be usable. strip is
> even worse. When .debug_info section is removed, section index of
> debug symbol is totally wrong.
>
> This patch will hide debug symbols.
>
>
Here is the updated patch to hide only definitions in debug sections.
H.J.
---
2006-09-29 H.J. Lu <hongjiu.lu@intel.com>
PR ld/3290
* elflink.c (elf_link_add_object_symbols): Hide definitions in
debug sections.
--- bfd/elflink.c.debug 2006-09-29 09:00:21.000000000 -0700
+++ bfd/elflink.c 2006-09-30 18:30:40.000000000 -0700
@@ -4137,6 +4137,13 @@ elf_link_add_object_symbols (bfd *abfd,
dynsym = TRUE;
}
+ if (definition && (sec->flags & SEC_DEBUGGING))
+ {
+ /* We don't want to make debug symbol dynamic. */
+ (*bed->elf_backend_hide_symbol) (info, h, TRUE);
+ dynsym = FALSE;
+ }
+
/* Check to see if we need to add an indirect symbol for
the default name. */
if (definition || h->root.type == bfd_link_hash_common)
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