diff options
Diffstat (limited to 'gas/config/obj-elf.c')
| -rw-r--r-- | gas/config/obj-elf.c | 59 |
1 files changed, 44 insertions, 15 deletions
diff --git a/gas/config/obj-elf.c b/gas/config/obj-elf.c index 4e7f3a36..bad6259 100644 --- a/gas/config/obj-elf.c +++ b/gas/config/obj-elf.c @@ -1107,14 +1107,6 @@ obj_elf_symver (ignore) *input_line_pointer = c; - if (symbol_get_obj (sym)->versioned_name != NULL) - { - as_bad (_("multiple .symver directives for symbol `%s'"), - S_GET_NAME (sym)); - ignore_rest_of_line (); - return; - } - SKIP_WHITESPACE (); if (*input_line_pointer != ',') { @@ -1133,16 +1125,34 @@ obj_elf_symver (ignore) *input_line_pointer++ = c; } - symbol_get_obj (sym)->versioned_name = xstrdup (name); + if (symbol_get_obj (sym)->versioned_name == NULL) + { + symbol_get_obj (sym)->versioned_name = xstrdup (name); - *input_line_pointer = c; + *input_line_pointer = c; - if (strchr (symbol_get_obj (sym)->versioned_name, ELF_VER_CHR) == NULL) + if (strchr (symbol_get_obj (sym)->versioned_name, + ELF_VER_CHR) == NULL) + { + as_bad (_("missing version name in `%s' for symbol `%s'"), + symbol_get_obj (sym)->versioned_name, + S_GET_NAME (sym)); + ignore_rest_of_line (); + return; + } + } + else { - as_bad (_("missing version name in `%s' for symbol `%s'"), - symbol_get_obj (sym)->versioned_name, S_GET_NAME (sym)); - ignore_rest_of_line (); - return; + if (strcmp (symbol_get_obj (sym)->versioned_name, name)) + { + as_bad (_("multiple versions [`%s'|`%s'] for symbol `%s'"), + name, symbol_get_obj (sym)->versioned_name, + S_GET_NAME (sym)); + ignore_rest_of_line (); + return; + } + + *input_line_pointer = c; } demand_empty_rest_of_line (); @@ -1754,6 +1764,24 @@ elf_frob_file () #endif } +/* It removes any unneeded versioned symbols from the symbol table. */ + +void +elf_frob_file_before_adjust () +{ + if (symbol_rootP) + { + symbolS *symp; + + for (symp = symbol_rootP; symp; symp = symbol_next (symp)) + if (symbol_get_obj (symp)->versioned_name + && !S_IS_DEFINED (symp) + && symbol_used_p (symp) == 0 + && symbol_used_in_reloc_p (symp) == 0) + symbol_remove (symp, &symbol_rootP, &symbol_lastP); + } +} + /* It is required that we let write_relocs have the opportunity to optimize away fixups before output has begun, since it is possible to eliminate all fixups for a section and thus we never should @@ -1958,6 +1986,7 @@ const struct format_ops elf_format_ops = elf_file_symbol, elf_frob_symbol, elf_frob_file, + elf_frob_file_before_adjust, elf_frob_file_after_relocs, elf_s_get_size, elf_s_set_size, elf_s_get_align, elf_s_set_align, |