http://sourceware.org/bugzilla/show_bug.cgi?id=15478
Bug #: 15478
Summary: -no-as-needed required to avoid runtime symbol lookup
error
Product: binutils
Version: 2.22
Status: NEW
Severity: normal
Priority: P2
Component: gold
AssignedTo: i...@airs.com
ReportedBy: sparkpr...@gmail.com
CC: ccout...@google.com
Classification: Unclassified
Created attachment 7028
--> http://sourceware.org/bugzilla/attachment.cgi?id=7028
3 c++ files and a simple build script
situation (see attached tar.bz2 to reproduce):
libmylib.so has unresolved symbols that are found in libmyplugin.so
myapp.c++ calls into libmylib.so
myapp.c++ is being compiled with -lmylib and -lmyplugin
expected behaviour, and behaviour with gnu ld:
myapp is linked against mylib and myplugin
observed behaviour:
myapp is only linked against mylib since it does not make direct calls into
myplugin
myapp is not executable (fails with message about myplugin symbols not being
resolved in mylib)
workaround:
link with -no-as-needed
Can you comment on this observed behaviour? thanks
dcunnin@tyrion:~$ gcc-4.6 --version
gcc-4.6 (Ubuntu/Linaro 4.6.3-10ubuntu1) 4.6.3 20120918 (prerelease)
Copyright (C) 2011 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
dcunnin@tyrion:~$ ld --version
GNU gold (GNU Binutils for Ubuntu 2.22.90.20120924) 1.11
Copyright 2011 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) a later version.
This program has absolutely no warranty.
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