Issue while using -rdynamic with binutils 2.22-8

[Makarand Pradhan <makarandpradhan at ruggedcom dot com>]

Hi All,

We are in the process of migrating from binutils 2.20.1-16 to 2.22-8.

I notice an issue while using linker option -rdynamic. Details below:

I'm using the sample code given at the end of this email for the test. 
The code links fine in 2.20.1-16, but fails in 2.22-8.

e.g.:
In 2.20.1-16:
# g++ -ffunction-sections -fdata-sections -rdynamic -Wl,--gc-sections 
t.cpp #

In 2.22-8:
# g++ -ffunction-sections -fdata-sections -rdynamic -Wl,--gc-sections t.cpp
/tmp/ccU6re3d.o: In function `c1_type::c1_func1()':
t.cpp:(.text._ZN7c1_type8c1_func1Ev+0x12): undefined reference to 
`c1_type::int_1'
t.cpp:(.text._ZN7c1_type8c1_func1Ev+0x1e): undefined reference to 
`c1_type::int_1'
collect2: ld returned 1 exit status

Problem:
The unused code is supposed to be stripped of by -Wl,--gc-sections. When 
used alone it works as expected. All the same when paied with ïrdynamic 
the build fails in the newer version.

Would appreciate any opinions if this is a bug or if I'm missing anything.

Warm Rgds,
Makarand.

System configuration:
# uname -a
Linux makarandpradhan-ppc 3.2.0-0.bpo.4-powerpc64 #1 SMP Debian 
3.2.41-2+deb7u2~bpo60+1 ppc GNU/Linux # cat /etc/*release 
PRETTY_NAME="Debian GNU/Linux 7 (wheezy)"
NAME="Debian GNU/Linux"
VERSION_ID="7"
VERSION="7 (wheezy)"
ID=debian
ANSI_COLOR="1;31"
HOME_URL="http://www.debian.org/";
SUPPORT_URL="http://www.debian.org/support/";
BUG_REPORT_URL="http://bugs.debian.org/";


File: t.cpp
#include <stdio.h>

class c1_type
{
public:
static int int_1;

void c1_func1(void);
};

void c1_type::c1_func1()
{
int_1 = 25;
}

int main()
{
return 0;
}