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Date:      Sun, 23 Jul 2017 22:05:57 +0000
From:      Ruslan Bukin <ruslan.bukin@cl.cam.ac.uk>
To:        "Ngie Cooper (yaneurabeya)" <yaneurabeya@gmail.com>
Cc:        Ruslan Bukin <br@FreeBSD.org>, src-committers <src-committers@freebsd.org>, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   Re: svn commit: r321331 - head/share/mk
Message-ID:  <20170723220557.GA79777@bsdpad.com>
In-Reply-To: <12D1C1EF-EC00-459F-844E-E5EA342EEDF2@gmail.com>
References:  <201707211450.v6LEoWCO064640@repo.freebsd.org> <12D1C1EF-EC00-459F-844E-E5EA342EEDF2@gmail.com>

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On Sun, Jul 23, 2017 at 11:14:54AM -0700, Ngie Cooper (yaneurabeya) wrote:
> 
> > On Jul 21, 2017, at 07:50, Ruslan Bukin <br@FreeBSD.org> wrote:
> > 
> > Author: br
> > Date: Fri Jul 21 14:50:32 2017
> > New Revision: 321331
> > URL: https://svnweb.freebsd.org/changeset/base/321331
> > 
> > Log:
> >  Add warning flags for GCC 7.1.0 compiler.
> > 
> >  Sponsored by:	DARPA, AFRL
> > 
> > Modified:
> >  head/share/mk/bsd.sys.mk
> > 
> > Modified: head/share/mk/bsd.sys.mk
> > ==============================================================================
> > --- head/share/mk/bsd.sys.mk	Fri Jul 21 14:14:47 2017	(r321330)
> > +++ head/share/mk/bsd.sys.mk	Fri Jul 21 14:50:32 2017	(r321331)
> > @@ -145,6 +145,23 @@ CWARNFLAGS+=	-Wno-error=misleading-indentation	\
> > 		-Wno-error=unused-const-variable
> > .endif
> > 
> > +# GCC 7.1.0
> > +.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 70100
> > +CWARNFLAGS+=	-Wno-error=deprecated			\
> > +		-Wno-error=pointer-compare		\
> > +		-Wno-error=format-truncation		\
> > +		-Wno-error=implicit-fallthrough		\
> > +		-Wno-error=expansion-to-defined		\
> > +		-Wno-error=int-in-bool-context		\
> > +		-Wno-error=bool-operation		\
> > +		-Wno-error=format-overflow		\
> > +		-Wno-error=stringop-overflow		\
> > +		-Wno-error=memset-elt-size		\
> > +		-Wno-error=int-in-bool-context		\
> > +		-Wno-error=unused-const-variable	\
> > +		-Wno-error=nonnull
> > +.endif
> 
> Hi Ruslan,
> 	1. Fixing some of these warnings make sense — why are we ignoring them?
> 	2. Why isn’t this being MFCed? gcc 7.1.0 is available on ^/stable/11 as well.

This is mostly for upcoming RISC-V update to support new privilege specification.
I did not try this on other architectures as my current goal is to support latest RISC-V.

Ruslan



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