On Fri, Jan 29, 2016 at 8:43 PM, William Cohen <wco...@redhat.com> wrote:
> On 01/29/2016 11:24 AM, William Cohen wrote:
> > Some additional gcc warning flags have been turned on in Fedora rawhide
> and the warnings are causing the build of libpfm to fail. Below is an
> example of them. However, there are others that are not listed because the
> compile of those files wasn't attempted because the make exited early.
> >
> > -Will
> >
> > cc -g -Wall -Werror -Wextra -Wno-unused-parameter -I.
> -I/builddir/build/BUILD/libpfm-4.6.0/lib/../include -DCONFIG_PFMLIB_DEBUG
> -DCONFIG_PFMLIB_OS_LINUX -D_REENTRANT -I. -DCONFIG_PFMLIB_ARCH_X86
> -DCONFIG_PFMLIB_ARCH_I386 -I. -c pfmlib_intel_ivb_unc.c
> > In file included from pfmlib_intel_snb_unc.c:31:0:
> > events/intel_snb_unc_events.h:227:32: error: 'intel_snb_unc_arb_pe'
> defined but not used [-Werror=unused-const-variable]
> > static const intel_x86_entry_t intel_snb_unc_arb_pe[]={
> > ^~~~~~~~~~~~~~~~~~~~
> > events/intel_snb_unc_events.h:145:32: error: 'snb_unc_arb_trk' defined
> but not used [-Werror=unused-const-variable]
> > static const intel_x86_umask_t snb_unc_arb_trk[]={
> > ^~~~~~~~~~~~~~~
> > cc1: all warnings being treated as errors
> > /builddir/build/BUILD/libpfm-4.6.0/lib/../rules.mk:30: recipe for
> target 'pfmlib_intel_snb_unc.o' failed
> > make[1]: *** [pfmlib_intel_snb_unc.o] Error 1
> > make[1]: *** Waiting for unfinished jobs....
> > In file included from pfmlib_intel_ivb_unc.c:31:0:
> > events/intel_snb_unc_events.h:227:32: error: 'intel_snb_unc_arb_pe'
> defined but not used [-Werror=unused-const-variable]
> > static const intel_x86_entry_t intel_snb_unc_arb_pe[]={
> > ^~~~~~~~~~~~~~~~~~~~
> > events/intel_snb_unc_events.h:145:32: error: 'snb_unc_arb_trk' defined
> but not used [-Werror=unused-const-variable]
> > static const intel_x86_umask_t snb_unc_arb_trk[]={
> > ^~~~~~~~~~~~~~~
> > cc1: all warnings being treated as errors
> > /builddir/build/BUILD/libpfm-4.6.0/lib/../rules.mk:30: recipe for
> target 'pfmlib_intel_ivb_unc.o' failed
> > make[1]: *** [pfmlib_intel_ivb_unc.o] Error 1
> > make[1]: Leaving directory '/builddir/build/BUILD/libpfm-4.6.0/lib'
> >
> >
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>
> As a first pass I went through and remove the unused initializers and the
> attached patch shows what was remove to eliminate the unused const
> initializer errors. This might not be the right approach, but it does list
> out the problem initializers when building things on x86 machines. Some of
> the events and unit masks might be supported by the processor and should
> remain.
>
> Patch applied.
Thanks.
> -Will
>
>
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>
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