Hello Christopher, On Wed, Aug 30, 2017 at 08:11:49PM -0400, Christopher Li wrote: > On Wed, Aug 30, 2017 at 1:36 PM, Uwe Kleine-König <uwe@xxxxxxxxxxxxxxxxx> wrote: > >> > > >> > diff --git a/validation/backend/sum.c b/validation/backend/sum.c > >> > index 0604299..d0be8dd 100644 > >> > --- a/validation/backend/sum.c > >> > +++ b/validation/backend/sum.c > >> > @@ -1,3 +1,5 @@ > >> > +#define __powerpc64__ > >> > +#define _CALL_ELF 2 > >> > #include <stdio.h> > >> > #include <stdlib.h> > >> > > >> > > >> > >> Yep, sparse/sparsec do not define various macros that gcc/clang define > >> by default on a given architecture. This is a known problem (that I have > >> been meaning to fix ...). The 'workaround' for the time being is to use > >> the cgcc front-end to sparse. (for example 'make CC=cgcc', or perhaps > >> 'cgcc -no-compile'). > >> > >> [You didn't mention your usage - is this for a kernel build?] > > > > This problem became visible during the make check phase when creating packaged > > on the listed archs for horst[1]. You can see a build logs at > > > > https://buildd.debian.org/status/fetch.php?pkg=horst&arch=s390x&ver=5.0-1&stamp=1503905687&raw=0 > > https://buildd.debian.org/status/fetch.php?pkg=horst&arch=ppc64el&ver=5.0-1&stamp=1503906226&raw=0 > > > > The error message looks identical (I checked the ppc64el log) to the > > problem with backend/sum.c: > > > > sparse -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -std=gnu99 -Wall -Wextra -g -I. -DDO_DEBUG -I/usr/include/libnl3 *.[ch] > > /usr/include/powerpc64le-linux-gnu/gnu/stubs.h:8:12: error: unable to open 'gnu/stubs-32.h' > > That is very much like on x86_64 missing define "#weak_define __x86_64__ 1" > > Does cgcc work for you? In the future we do want to move the archetecture > related define from cgcc into sparse by itself. For now you can set > "sparse" as "cgcc -no-compile" Yes that works. So to address the Debian bug I can do: - move sparse to /usr/lib - teach cgcc about the move of sparse - make /usr/bin/sparse call cgcc -no-compile "$@" or is it easier to teach sparse about the architecture stuff? Best regards Uwe
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