Re: [PATCH, testsuite]: Fix PR 65944, FAIL: g++.dg/lto/pr65276: undefined reference to std2::exception::~exception()

[James Greenhalgh <james dot greenhalgh at arm dot com>]

On Wed, Jun 17, 2015 at 11:04:24AM +0100, Uros Bizjak wrote:
> On Tue, Jun 16, 2015 at 5:13 PM, Uros Bizjak <ubizjak@gmail.com> wrote:
> > Hello!
> >
> > Following patch fixes:
> >
> > cp_lto_pr65276_1.o: In function `std2::runtime_error::~runtime_error()':^M
> > pr65276_1.C:(.text._ZN4std213runtime_errorD2Ev[_ZN4std213runtime_errorD5Ev]+0x8):
> > undefined reference to `std2::exception::~exception()'^M
> > cp_lto_pr65276_1.o: In function `std2::runtime_error::~runtime_error()':^M
> > pr65276_1.C:(.text._ZN4std213runtime_errorD0Ev[_ZN4std213runtime_errorD5Ev]+0xc):
> > undefined reference to `std2::exception::~exception()'^M
> > cp_lto_pr65276_1.o:(.rodata._ZTVN4std29exceptionE[_ZTVN4std29exceptionE]+0x10):
> > undefined reference to `std2::exception::~exception()'^M
> > cp_lto_pr65276_1.o:(.rodata._ZTVN4std29exceptionE[_ZTVN4std29exceptionE]+0x18):
> > undefined reference to `std2::exception::~exception()'^M
> > collect2: error: ld returned 1 exit status^M
> >
> > link error with g++.dg/lto/pr65276 testcase.
> >
> > 2015-06-16  Uros Bizjak  <ubizjak@gmail.com>
> >
> >     PR testsuite/65944
> >     * g++.dg/lto/pr65276_0.C: Add std2::exception::~exception() function.
> >
> > Tested on x86_64-linux-gnu CentOS 5.11 (where linking failed) and
> > Fedora 22 (where linking didn't fail).
> >
> > OK for mainline and gcc-5 branch?
> 
> Now committed as obvious.

Hi,

This patch causes failures in arm-none-linux-gnueabihf testing:

PASS->FAIL: g++.dg/lto/pr65276 cp_lto_pr65276_0.o-cp_lto_pr65276_1.o link, -flto -O0 -std=c++11

.../arm-none-linux-gnueabihf/obj/gcc4/gcc/testsuite/g++2/../../xg++ -B.../arm-none-linux-gnueabihf/obj/gcc4/gcc/testsuite/g++2/../../ cp_lto_pr65276_0.o cp_lto_pr65276_1.o -fno-diagnostics-show-caret -fdiagnostics-color=never -nostdinc++ -I.../arm-none-linux-gnueabihf/obj/gcc4/arm-none-linux-gnueabihf/libstdc++-v3/include/arm-none-linux-gnueabihf -I.../arm-none-linux-gnueabihf/obj/gcc4/arm-none-linux-gnueabihf/libstdc++-v3/include -I.../gcc/libstdc++-v3/libsupc++ -I.../gcc/libstdc++-v3/include/backward -I.../gcc/libstdc++-v3/testsuite/util -fmessage-length=0 -flto -O0 -std=c++11 -L.../arm-none-linux-gnueabihf/obj/gcc4/arm-none-linux-gnueabihf/./libstdc++-v3/src/.libs -B.../arm-none-linux-gnueabihf/obj/gcc4/arm-none-linux-gnueabihf/./libstdc++-v3/src/.libs -L.../arm-none-linux-gnueabihf/obj/gcc4/arm-none-linux-gnueabihf/./libstdc++-v3/src/.libs -o g++-dg-lto-pr65276-01.exe
cp_lto_pr65276_1.o (symbol from plugin): In function `typeinfo for std2::runtime_error':
(.text+0x0): multiple definition of `typeinfo name for std2::exception'
cp_lto_pr65276_0.o (symbol from plugin):(.text+0x0): first defined here
cp_lto_pr65276_1.o (symbol from plugin): In function `typeinfo for std2::runtime_error':
(.text+0x0): multiple definition of `typeinfo for std2::exception'
cp_lto_pr65276_0.o (symbol from plugin):(.text+0x0): first defined here
collect2: error: ld returned 1 exit status
compiler exited with status 1
output is:
cp_lto_pr65276_1.o (symbol from plugin): In function `typeinfo for std2::runtime_error':
(.text+0x0): multiple definition of `typeinfo name for std2::exception'
cp_lto_pr65276_0.o (symbol from plugin):(.text+0x0): first defined here
cp_lto_pr65276_1.o (symbol from plugin): In function `typeinfo for std2::runtime_error':
(.text+0x0): multiple definition of `typeinfo for std2::exception'
cp_lto_pr65276_0.o (symbol from plugin):(.text+0x0): first defined here
collect2: error: ld returned 1 exit status

Thanks,
James