From f218a464b274fb6090a0d3f70870bb1bf8c2f146 Mon Sep 17 00:00:00 2001 From: Alan Modra Date: Thu, 18 Mar 2004 23:02:06 +0000 Subject: * elflink.c (_bfd_elf_merge_symbol): Reinstate code to handle strong syms in one shared object overriding weak syms in another. --- bfd/ChangeLog | 5 +++++ bfd/elflink.c | 24 ++++++++++++++++++++++++ 2 files changed, 29 insertions(+) (limited to 'bfd') diff --git a/bfd/ChangeLog b/bfd/ChangeLog index eb91f6e..fb1e2c4 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,8 @@ +2004-03-19 Alan Modra + + * elflink.c (_bfd_elf_merge_symbol): Reinstate code to handle + strong syms in one shared object overriding weak syms in another. + 2004-03-18 Alan Modra * elf-bfd.h (struct elf_obj_tdata): Delete dt_soname field. Add diff --git a/bfd/elflink.c b/bfd/elflink.c index c9db782..0a5c175 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -1153,6 +1153,30 @@ _bfd_elf_merge_symbol (bfd *abfd, } } + /* Handle the special case of a weak definition in one shared object + followed by a non-weak definition in another. We are covering for + a deficiency of _bfd_generic_link_add_one_symbol here. A new + strong definition of an indirect symbol is treated as a multiple + definition even when the indirect symbol points to a weak sym. */ + if (olddef + && oldweak + && olddyn + && newdef + && !newweak + && newdyn) + { + /* To make this work we have to frob the flags so that the rest + of the code does not think we are using the old definition. */ + h->elf_link_hash_flags |= ELF_LINK_HASH_REF_DYNAMIC; + h->elf_link_hash_flags &= ~ELF_LINK_HASH_DEF_DYNAMIC; + + /* If H is the target of an indirection, we want the caller to + use H rather than the indirect symbol. Otherwise if we are + defining a new indirect symbol we will wind up attaching it + to the entry we are overriding. */ + *sym_hash = h; + } + return TRUE; } -- cgit v1.1