On Thu, 3 Aug 2017 10:46:47 -0300 Philippe Mathieu-Daudé <f4...@amsat.org> wrote:
> Hi Greg, > > On 08/02/2017 11:47 AM, Greg Kurz wrote: > > Building QEMU on fedora26 with the latest gcc package fails: > > > > CC ppc64-softmmu/target/ppc/kvm.o > > In file included from include/sysemu/hw_accel.h:16:0, > > from target/ppc/kvm.c:31: > > target/ppc/kvm.c: In function ‘kvmppc_booke_watchdog_enable’: > > include/sysemu/kvm.h:449:35: error: ‘args_tmp[i]’ may be used uninitialized > > in this function [-Werror=maybe-uninitialized] > > cap.args[i] = args_tmp[i]; \ > > ^ > > target/ppc/kvm.c: In function ‘kvmppc_set_papr’: > > include/sysemu/kvm.h:449:35: error: ‘args_tmp[i]’ may be used uninitialized > > in this function [-Werror=maybe-uninitialized] > > cc1: all warnings being treated as errors > > I'm trying to reproduce this in our docker images (all x86_64 based) but > can't reproduce. > > ./configure shows: > > KVM support yes > > but in "sysemu/kvm.h" CONFIG_KVM_IS_POSSIBLE is not defined > > I can see CONFIG_KVM defined, but no NEED_CPU_H. > > > > > $ rpm -q gcc > > gcc-7.1.1-3.fc26.ppc64le > > I don't have native ppc64le to build, do you know if it is possible to > cross-compile enabling kvm? It seems I have the correct Linux headers, I > wonder if this isn't a ./configure test which disable the kvm cross-build. > I don't cross-compile personally but I see no reasons why it wouldn't be possible. I'd say the biggest churn is to setup the cross-compile environment :) > Regards, > > Phil.
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