diff options
Diffstat (limited to 'ld/ldexp.c')
| -rw-r--r-- | ld/ldexp.c | 31 |
1 files changed, 23 insertions, 8 deletions
@@ -575,13 +575,10 @@ fold_name (etree_type *tree) break; case DEFINED: - if (expld.phase == lang_first_phase_enum) - lang_track_definedness (tree->name.name); - else + if (expld.phase != lang_first_phase_enum) { struct bfd_link_hash_entry *h; - int def_iteration - = lang_symbol_definition_iteration (tree->name.name); + struct lang_definedness_hash_entry *def; h = bfd_wrapped_link_hash_lookup (link_info.output_bfd, &link_info, @@ -591,15 +588,33 @@ fold_name (etree_type *tree) && (h->type == bfd_link_hash_defined || h->type == bfd_link_hash_defweak || h->type == bfd_link_hash_common) - && (def_iteration == lang_statement_iteration - || def_iteration == -1)); + && ((def = lang_symbol_defined (tree->name.name)) == NULL + || def->by_object + || def->iteration == (lang_statement_iteration & 1))); } break; case NAME: if (expld.assign_name != NULL && strcmp (expld.assign_name, tree->name.name) == 0) - expld.assign_name = NULL; + { + /* Self-assignment is only allowed for absolute symbols + defined in a linker script. */ + struct bfd_link_hash_entry *h; + struct lang_definedness_hash_entry *def; + + h = bfd_wrapped_link_hash_lookup (link_info.output_bfd, + &link_info, + tree->name.name, + FALSE, FALSE, TRUE); + if (!(h != NULL + && (h->type == bfd_link_hash_defined + || h->type == bfd_link_hash_defweak) + && h->u.def.section == bfd_abs_section_ptr + && (def = lang_symbol_defined (tree->name.name)) != NULL + && def->iteration == (lang_statement_iteration & 1))) + expld.assign_name = NULL; + } if (expld.phase == lang_first_phase_enum) ; else if (tree->name.name[0] == '.' && tree->name.name[1] == 0) |