[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Bug ld/17550] Section groups (comdat/linkonce) create undefined symbols
From: |
cvs-commit at gcc dot gnu.org |
Subject: |
[Bug ld/17550] Section groups (comdat/linkonce) create undefined symbols unnecessarily |
Date: |
Tue, 03 Jul 2018 07:23:53 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=17550
--- Comment #4 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot
gnu.org> ---
The master branch has been updated by Alan Modra <address@hidden>:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=af0bfb9c4283ce80fe37ad6360d12cae8ec38696
commit af0bfb9c4283ce80fe37ad6360d12cae8ec38696
Author: Alan Modra <address@hidden>
Date: Tue Jul 3 12:18:10 2018 +0930
Hide dynamic symbols in discarded sections
This is a followup to git commit 97196564c7 "Strip global symbol
defined in discarded section". If a symbol defined in a discarded
section was dynamic, that patch left .dynsym with holes (ie. all zero
entries). For example, the following from libstdc++.so:
Symbol table '.dynsym' contains 6090 entries:
Num: Value Size Type Bind Vis Ndx Name
0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
1: 00000000000a74e0 0 SECTION LOCAL DEFAULT 10
2: 0000000000264180 0 SECTION LOCAL DEFAULT 17
3: 0000000000000000 0 NOTYPE WEAK DEFAULT UND
_ITM_addUserCommitAction
4: 0000000000000000 0 NOTYPE WEAK DEFAULT UND _ITM_memcpyRtWn
5: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
readelf: Warning: local symbol 5 found at index >= .dynsym's sh_info value
of 3
6: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
readelf: Warning: local symbol 6 found at index >= .dynsym's sh_info value
of 3
[snip]
This patch removes the symbols from .dynsym too.
PR 17550
* elflink.c (_bfd_elf_fix_symbol_flags): Hide dynamic symbols
in discarded sections.
--
You are receiving this mail because:
You are on the CC list for the bug.
- [Bug ld/17550] Section groups (comdat/linkonce) create undefined symbols unnecessarily,
cvs-commit at gcc dot gnu.org <=