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| author | Alan Modra <amodra@gmail.com> | 2014-12-23 19:07:23 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2014-12-23 23:36:50 +1030 |
| commit | 12b2843a6bb12292d8e36d8df22c788a3c91cb2f (patch) | |
| tree | 09f7f27839b1e5fe160a58612b5939037905e968 /ld/ldexp.c | |
| parent | 4cc2bf08a4e18aa2009e9d4f1694a800eacbee17 (diff) | |
| download | gdb-12b2843a6bb12292d8e36d8df22c788a3c91cb2f.zip gdb-12b2843a6bb12292d8e36d8df22c788a3c91cb2f.tar.gz gdb-12b2843a6bb12292d8e36d8df22c788a3c91cb2f.tar.bz2 | |
Use a symbol flag bit to mark linker defined symbols
Trying to use the SEC_LINKER_CREATED section flag to determine whether
a symbol is linker defined fails to work on targets like alpha that
define special SEC_COMMON sections. These might contain symbols that
originated in an object file.
include/
* bfdlink.h (struct bfd_link_hash_entry): Comment non_ir_ref. Add
linker_def.
bfd/
* elflink.c (_bfd_elf_define_linkage_sym): Set linker_def.
* linker.c (_bfd_generic_link_add_one_symbol): Clear linker_def
for CDEF, DEF, DEFW, COM.
ld/
* ldexp.c (exp_fold_tree_1 <etree_provide>): Test linker_def.
ld/testsuite/
* ld-powerpc/sdabase.s,
* ld-powerpc/sdabase.t,
* ld-powerpc/sdabase.d: New test.
* ld-powerpc/sdabase2.t,
* ld-powerpc/sdabase2.d: New test.
* ld-powerpc/powerpc.exp: Run them.
Diffstat (limited to 'ld/ldexp.c')
| -rw-r--r-- | ld/ldexp.c | 4 |
1 files changed, 1 insertions, 3 deletions
@@ -1072,9 +1072,7 @@ exp_fold_tree_1 (etree_type *tree) if (h == NULL || !(h->type == bfd_link_hash_new || h->type == bfd_link_hash_undefined - || (h->type == bfd_link_hash_defined - && (h->u.def.section->flags - & SEC_LINKER_CREATED) != 0))) + || h->linker_def)) { /* Do nothing. The symbol was never referenced, or was defined in some object file. Undefined weak |