Package: mklibs
Version: 0.1.40
Severity: important
Tags: patch
Dear Maintainer,
* What led up to the situation?
GNU unique symbol bind type is introduced, and enabled by GCC 4.9 to address
some
certain binding problems. The Standard C++ library from GCC as a result, uses
this binding type for some of the symbols.
However, mklibs-readelf does not treat any symbol other than STB_WEAK or
STB_GLOBAL as provided by library.
The issue randers some symbols false 'unresolvable' when trying to generate
minimal library set.
* What exactly did you do (or not do) that was effective (or
ineffective)?
mklibs-readelf --print-symbols-provided
/usr/lib/x86_64-linux-gnu/libstdc++.so.6 \
| grep empty_rep_storage
* What was the outcome of this action?
Nothing, so the symbol is `not provided'.
* What outcome did you expect instead?
_ZNSs4_Rep20_S_empty_rep_storageE False GLIBCXX_3.4 True
_ZNSbIwSt11char_traitsIwESaIwEE4_Rep20_S_empty_rep_storageE False GLIBCXX_3.4
True
-- System Information:
Debian Release: 8.0
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 3.19.2-1-ARCH (SMP w/8 CPU cores; PREEMPT)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/dash
Init: unable to detect
Versions of packages mklibs depends on:
ii binutils 2.25-6
ii dpkg-dev 1.17.25
ii gcc 4:4.9.2-2
ii mklibs-copy 0.1.40
ii python 2.7.9-1
Versions of packages mklibs recommends:
ii libc6-pic 2.19-18
mklibs suggests no packages.
-- no debconf information
>From eddf04c7f8312e9c29cdb24e431b7e4fb2cc70ed Mon Sep 17 00:00:00 2001
From: Yuanjie Huang <yuanjie.hu...@windriver.com>
Date: Wed, 15 Apr 2015 14:00:06 +0800
Subject: [PATCH] Show GNU unique symbols as provided symbols
GNU Unique symbol is a GNU extension employed by new version of GCC
by default. Even Standard C++ library in GCC 4.9 provides some symbols,
such as _ZNSs4_Rep20_S_empty_rep_storageE in this binding type instead
of ELF standard weak binding.
This patch adds support of this new binding type to mklibs-readelf.
Signed-off-by: Yuanjie Huang <yuanjie.hu...@windriver.com>
---
src/mklibs-readelf/main.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/mklibs-readelf/main.cpp b/src/mklibs-readelf/main.cpp
index 56d93f8..0134530 100644
--- a/src/mklibs-readelf/main.cpp
+++ b/src/mklibs-readelf/main.cpp
@@ -88,7 +88,7 @@ static void process_symbols_provided (const
Elf::section_type<Elf::section_type_
uint8_t type = symbol->get_type ();
const std::string &name = symbol->get_name_string ();
- if (bind != STB_GLOBAL && bind != STB_WEAK)
+ if (bind != STB_GLOBAL && bind != STB_WEAK && bind != STB_GNU_UNIQUE)
continue;
if (shndx == SHN_UNDEF || shndx == SHN_ABS)
continue;
--
1.8.5.2.233.g932f7e4
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