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| author | Alan Modra <amodra@gmail.com> | 2014-08-05 10:46:57 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2014-08-05 10:46:57 +0930 |
| commit | 13e570f80cbfb299a8858ce6830e91a6cb40ab7b (patch) | |
| tree | 771ad9d8322d503019dff64816234bd09566e21c /bfd/pdp11.c | |
| parent | 241fd515ad94fa11d4608d4fe8108c382792d3be (diff) | |
| download | gdb-13e570f80cbfb299a8858ce6830e91a6cb40ab7b.zip gdb-13e570f80cbfb299a8858ce6830e91a6cb40ab7b.tar.gz gdb-13e570f80cbfb299a8858ce6830e91a6cb40ab7b.tar.bz2 | |
Fix LTO vs. COFF archives
Avoid scan of symbols on objects in coff archives since we don't need
to do anything special with common symbols. The scan is quite useless,
and breaks LTO due to slim LTO objects not having symbols available
until after the plugin has claimed them. Instead we can add objects
based on their archive symbol map.
Also, rip out the archive symbol hash table used by the generic
linker. Using a hash breaks one feature of unix archive linking;
The first object file in an archive defining any given symbol should
be the object extracted to satisfy that symbol. What's more a hash
isn't much faster except in pathological cases where object file
ordering causes many scans of the archive. See the comment which I'm
removing from elf_link_add_archive_symbols.
Finally, tidy elflink.c archive handling a little.
PR 13557
* linker.c (struct archive_list, struct archive_hash_entry,
struct archive_hash_table, archive_hash_newfunc,
archive_hash_table_init, archive_hash_lookup, archive_hash_allocate,
archive_hash_table_free): Delete.
(_bfd_generic_link_add_archive_symbols): Add h and name params to
checkfn. Rewrite using a straight-forward scan over archive map.
(generic_link_check_archive_element_no_collect,
generic_link_check_archive_element_collect,
generic_link_check_archive_element): Add h and name params.
* aoutx.h (aout_link_check_archive_element): Likewise.
* pdp11.c (aout_link_check_archive_element): Likewise.
* xcofflink.c (xcoff_link_check_archive_element): Likewise.
* cofflink.c (coff_link_check_archive_element): Likewise. Don't
scan symbols, simply add archive element whenever h is undefined.
(coff_link_check_ar_symbols): Delete.
* ecoff.c (read_ext_syms_and_strs): Delete.
(reread_ext_syms_and_strs): Delete.
(ecoff_link_check_archive_element): Add h and name param. Don't
scan symbols, simply add based on h. Use ecoff_link_add_object_symbols.
* elflink.c (elf_link_is_defined_archive_symbol): Don't test
archive_pass.
(elf_link_add_archive_symbols): Delete "defined" array, merge
functionality into "included". Make "included" a char array. Don't
set or test archive_pass.
* libbfd-in.h (_bfd_generic_link_add_archive_symbols): Update.
* libbfd.h: Regenerate.
Diffstat (limited to 'bfd/pdp11.c')
| -rw-r--r-- | bfd/pdp11.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/bfd/pdp11.c b/bfd/pdp11.c index 8999af2..8bce865 100644 --- a/bfd/pdp11.c +++ b/bfd/pdp11.c @@ -251,7 +251,7 @@ HOWTO( 1, 0, 1, 16, TRUE, 0, complain_overflow_signed,0,"DISP16", TRU #define TABLE_SIZE(TABLE) (sizeof(TABLE)/sizeof(TABLE[0])) -static bfd_boolean aout_link_check_archive_element (bfd *, struct bfd_link_info *, bfd_boolean *); +static bfd_boolean aout_link_check_archive_element (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, const char *, bfd_boolean *); static bfd_boolean aout_link_add_object_symbols (bfd *, struct bfd_link_info *); static bfd_boolean aout_link_add_symbols (bfd *, struct bfd_link_info *); static bfd_boolean aout_link_write_symbols (struct aout_final_link_info *, bfd *); @@ -2679,6 +2679,8 @@ aout_link_check_ar_symbols (bfd *abfd, static bfd_boolean aout_link_check_archive_element (bfd *abfd, struct bfd_link_info *info, + struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED, + const char *name ATTRIBUTE_UNUSED, bfd_boolean *pneeded) { bfd *oldbfd; |