Re: toolchain/58089: MKREPRO isn't really reproductible

[Manuel Bouyer <manuel.bouyer%lip6.fr@localhost>]

The following reply was made to PR toolchain/58089; it has been noted by GNATS.

From: Manuel Bouyer <manuel.bouyer%lip6.fr@localhost>
To: Taylor R Campbell <riastradh%NetBSD.org@localhost>
Cc: gnats-bugs%netbsd.org@localhost, toolchain-manager%netbsd.org@localhost,
        gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Subject: Re: toolchain/58089: MKREPRO isn't really reproductible
Date: Sun, 31 Mar 2024 08:19:45 +0200

 On Fri, Mar 29, 2024 at 01:23:29PM +0000, Taylor R Campbell wrote:
 > > Date: Fri, 29 Mar 2024 13:10:00 +0000 (UTC)
 > > From: Manuel Bouyer <Manuel.Bouyer%lip6.fr@localhost>
 > > 
 > > 	cvs co -r netbsd-10 -D "2024-03-26 19:10 UTC" -P src
 > > 	cd src && ./build.sh -m i386 -P tools kernel=GENERIC
 > 
 > It looks like, for the i386 netbsd-10 autobuilds, we use:
 > 
 > -P -x -N0 -V TMPDIR=/tmp -V BUILD=yes -V MAKECONF="${AB_HOME}/etc/make.conf" -V MKDEBUG=yes
 > 
 > where ${AB_HOME}/etc/make.conf has (unnecessarily, I think):
 > 
 > MKREPRO=yes
 > 
 > I have no idea what BUILD=yes does, and it doesn't seem to be
 > documented in share/mk/bsd.README (but it is _listed_ there and in
 > BUILDING.mdoc), but -V MKDEBUG=yes is probably the difference.
 > 
 > We should have this information published somewhere so that others can
 > verify it.
 
 Thanks. Indeed with MKDEBUG=yes the kernel doens't have debug_info
 (it's counterintuitive :)
 BUILD=yes doens't seem to change anything for the kernel.
 
 There is still a difference of 96 bytes between my kernel and the
 official one. strings(1) shows this which may be relevant:
 -_CFG_### START CONFIG FILE "/local/armandeche2/netbsd-10-20240326/src/sys/arch/i386/conf/GENERIC"
 +_CFG_### START CONFIG FILE "GENERIC"
 
 I didn't find how config(1) could generate a config_file.h without absolute
 path.
 
 -- 
 Manuel Bouyer, LIP6, Sorbonne Université.           Manuel.Bouyer%lip6.fr@localhost
      NetBSD: 26 ans d'experience feront toujours la difference
 --