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| author | Alan Modra <amodra@gmail.com> | 2004-12-22 03:59:26 +0000 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2004-12-22 03:59:26 +0000 |
| commit | a5db907e362ff8722045126321c507d8ea5e436c (patch) | |
| tree | a4c074f146b68c64851e1f30765adee54ff866c2 /bfd/elflink.c | |
| parent | 15dafedca8a9fe6af088607ef6bee682a183e293 (diff) | |
| download | gdb-a5db907e362ff8722045126321c507d8ea5e436c.zip gdb-a5db907e362ff8722045126321c507d8ea5e436c.tar.gz gdb-a5db907e362ff8722045126321c507d8ea5e436c.tar.bz2 | |
* elflink.c (_bfd_elf_merge_symbol): Treat old definitions from
as-needed dynamic libs as undefined.
(elf_link_add_object_symbols): Remove DYN_AS_NEEDED from as-needed
libs when finding they are needed.
Diffstat (limited to 'bfd/elflink.c')
| -rw-r--r-- | bfd/elflink.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/bfd/elflink.c b/bfd/elflink.c index d46bf41..a973cd5 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -719,7 +719,7 @@ _bfd_elf_merge_symbol (bfd *abfd, int bind; bfd *oldbfd; bfd_boolean newdyn, olddyn, olddef, newdef, newdyncommon, olddyncommon; - bfd_boolean newweak, oldweak; + bfd_boolean newweak, oldweak, old_asneeded; *skip = FALSE; *override = FALSE; @@ -849,6 +849,14 @@ _bfd_elf_merge_symbol (bfd *abfd, else olddef = TRUE; + /* If the old definition came from an as-needed dynamic library which + wasn't found to be needed, treat the sym as undefined. */ + old_asneeded = FALSE; + if (newdyn + && olddyn + && (elf_dyn_lib_class (oldbfd) & DYN_AS_NEEDED) != 0) + old_asneeded = TRUE; + /* Check TLS symbol. */ if ((ELF_ST_TYPE (sym->st_info) == STT_TLS || h->type == STT_TLS) && ELF_ST_TYPE (sym->st_info) != h->type) @@ -1051,6 +1059,7 @@ _bfd_elf_merge_symbol (bfd *abfd, if (olddyn && olddef + && !old_asneeded && h->root.type == bfd_link_hash_defined && h->def_dynamic && (h->root.u.def.section->flags & SEC_ALLOC) != 0 @@ -1102,7 +1111,7 @@ _bfd_elf_merge_symbol (bfd *abfd, if (newdyn && newdef - && (olddef + && ((olddef && !old_asneeded) || (h->root.type == bfd_link_hash_common && (newweak || ELF_ST_TYPE (sym->st_info) == STT_FUNC)))) @@ -1152,7 +1161,7 @@ _bfd_elf_merge_symbol (bfd *abfd, symbol is a function or is weak. */ flip = NULL; - if (! newdyn + if ((!newdyn || old_asneeded) && (newdef || (bfd_is_com_section (sec) && (oldweak @@ -3937,6 +3946,8 @@ elf_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info) goto error_free_vers; } + elf_dyn_lib_class (abfd) &= ~DYN_AS_NEEDED; + add_needed = TRUE; ret = elf_add_dt_needed_tag (info, soname, add_needed); if (ret < 0) |