Re: master: qemu-native fails do_compile: unrecognized command line option Œ-fstack-protector-strong¹

[Darren Hart <dvhart@linux.intel.com>]

On 10/8/14, 11:00, "Darren Hart" <dvhart@linux.intel.com> wrote:

>I'm seeing the following error attempting to build qemu-native for
>qemux86-64 from the master branch:
>
>ERROR: Logfile of failure stored in:
>/build/yocto/master/intel-corei7-64_20141008094748/build/tmp/work/x86_64-l
>i
>nux/qemu-native/2.1.0-r0/temp/log.do_compile.737
>Log data follows:
>| DEBUG: Executing shell function do_compile
>| NOTE: make -j 1
>|   GEN   arm-linux-user/config-devices.mak
>|   GEN   arm-softmmu/config-devices.mak
>|   GEN   i386-linux-user/config-devices.mak
>|   GEN   i386-softmmu/config-devices.mak
>|   GEN   x86_64-linux-user/config-devices.mak
>|   GEN   x86_64-softmmu/config-devices.mak
>|   GEN   config-all-devices.mak
>|   GEN   config-host.h
>|   GEN   qemu-options.def
>|   GEN   qmp-commands.h
>|   GEN   qapi-types.h
>|   GEN   qapi-visit.h
>|   GEN   qapi-event.h
>|   GEN   trace/generated-events.h
>|   GEN   trace/generated-tracers.h
>|   GEN   tests/test-qapi-types.h
>|   GEN   tests/test-qapi-visit.h
>|   GEN   tests/test-qmp-commands.h
>|   GEN   tests/test-qapi-event.h
>|   CC    tests/qemu-iotests/socket_scm_helper.o
>|   LINK  tests/qemu-iotests/socket_scm_helper
>| g++: error: unrecognized command line option '-fstack-protector-strong'
>| 
>/build/yocto/master/intel-corei7-64_20141008094748/build/tmp/work/x86_64-l
>i
>nux/qemu-native/2.1.0-r0/qemu-2.1.0/rules.mak:88: recipe for target
>'tests/qemu-iotests/socket_scm_helper' failed
>| make: *** [tests/qemu-iotests/socket_scm_helper] Error 1
>| ERROR: oe_runmake failed
>| WARNING: exit code 1 from a shell command.
>| ERROR: Function failed: do_compile (log file is located at
>/build/yocto/master/intel-corei7-64_20141008094748/build/tmp/work/x86_64-l
>i
>nux/qemu-native/2.1.0-r0/temp/log.do_compile.737)
>ERROR: Task 7 
>(virtual:native:/build/yocto/master/intel-corei7-64_20141008094748/poky/me
>t
>a/recipes-devtools/qemu/qemu_2.1.0.bb, do_compile) failed with exit code
>'1'
>
>
>The key bit being:
>| g++: error: unrecognized command line option '-fstack-protector-strong'
>
>
>
>As this appears to be a toolchain versioning issue, I tested this
>independently:
>
>dvhart@rage:~
>$ g++-4.8 -fstack-protector-strong test.c -o test
>g++-4.8: error: unrecognized command line option
>Œ-fstack-protector-strong¹
>
>dvhart@rage:~
>$ g++-4.9 -fstack-protector-strong test.c -o test
>dvhart@rage:~
>
>$ ./test
>Hello World!
>
>
>Sure enough, 4.9 supports this, and 4.8 does not. I'm looking into if
>this 
>is a qemu-native configuration issue or something else... But if anyone
>already has a solution in hand, please let me know.

This appears to be related to the Debian Jessie default g++ (4.8). If I
set it to 4.9, the build continues.

-- 
Darren Hart
Intel Open Source Technology Center