Date: Tue, 10 Apr 2018 17:29:25 -0700 (PDT) From: "Rodney W. Grimes" <freebsd-rwg@pdx.rh.CN85.dnsmgr.net> To: "Simon J. Gerraty" <sjg@juniper.net> Cc: freebsd-current@freebsd.org Subject: Re: Module compiles looking in /usr/src when alternate src tree is in use Message-ID: <201804110029.w3B0TPUf025467@pdx.rh.CN85.dnsmgr.net> In-Reply-To: <3030.1523404597@kaos.jnpr.net>
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> Rodney W. Grimes <freebsd-rwg@pdx.rh.CN85.dnsmgr.net> wrote:
>
> > I am having a compile time issue for a patched that compiled fine on my
> > r329294 system, but now failes to compile with what looks like a wrong
> > header being included.
>
> You may find it helpful to do something like:
>
> make -dv -C sys/modules/vmm -V CFLAGS > /tmp/dvo 2>&1
> egrep ':.PARSE|/usr/src/sys' /tmp/dvo | grep -B1 usr/src | more
>
> The arg to -V doesn't matter btw.
> You could narrow that down if you know what var -I/usr/src/sys is in
> (probably CFLAGS but you never know)
> the above should help find the makefile that is introducing the bogus -I
>
Thank you, that does help narrow it down: (I backed up a vew lines
from the first place I saw src/.)
...
Global:.PARSEFILE = bsd.kmod.mk
Global:.PARSEDIR = /usr/src-topo/share/mk
Global:.PARSEFILE = bsd.kmod.mk
Result[] of :U is "/usr/src/sys"
Result[] of :U is "/usr/src/sys"
Global:SYSDIR = ${:U/usr/src/sys:tA}
Global:.PARSEDIR = /usr/src-topo/share/mk
Global:.PARSEFILE = bsd.kmod.mk
Result[] of :U is "/usr/src/sys"
Applying[] :t to "/usr/src/sys"
Result[] of :t is "/usr/src/sys"
Result[] of :U is "/usr/src/sys"
Applying[] :t to "/usr/src/sys"
Result[] of :t is "/usr/src/sys"
Result[] of :U is "/usr/src/sys"
Applying[] :t to "/usr/src/sys"
Result[] of :t is "/usr/src/sys"
Global:.MAKE.MAKEFILES = /usr/src-topo/share/mk/sys.mk /usr/src-topo/share/mk/local.sys.env.mk /usr/src-topo/share/mk/src.sys.env.mk /usr/src-topo/share/mk/bsd.mkopt.m
k /usr/src-topo/share/mk/src.sys.obj.mk /usr/src-topo/share/mk/auto.obj.mk /usr/src-topo/share/mk/bsd.suffixes.mk /usr/src-topo/share/mk/local.sys.mk /usr/src-topo/sha
re/mk/src.sys.mk /usr/src-topo/sys/modules/vmm/Makefile /usr/src-topo/share/mk/bsd.kmod.mk /usr/src/sys/conf/kmod.mk
^^^^^^^^^^^^^^^^^^^^^^^^^
Thats gona bust something some day....
Global:.PARSEDIR = /usr/src/sys/conf
Global:.PARSEFILE = kmod.mk
Global:.INCLUDEDFROMDIR = /usr/src/sys/conf
Oh my! Uggggg
So something in bsd.kmod.mk is going very wrong... it looks like it
starts to pull all sorts of stuff from /usr/src/sys!
> >
> > I have wrapped the long line so I can point to a difference between
> > r329294 and r332262 make log of this file.
> >
> > r329294 make output:
> >
> > cc -O2 -pipe -DVMM_KEEP_STATS -DSMP -fno-strict-aliasing -Werror -D_KERNEL \
> > -DKLD_MODULE -nostdinc -I/usr/src-topo/sys/amd64/vmm \
> > -I/usr/src-topo/sys/amd64/vmm/io -I/usr/src-topo/sys/amd64/vmm/intel \
> > -I/usr/src-topo/sys/amd64/vmm/amd -I. -I/usr/src-topo/sys -fno-common \
> > ^^^^^^^^^^^^^^^^^ this is what I would expect
>
>
--
Rod Grimes rgrimes@freebsd.org
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