Date: Wed, 21 Oct 2015 01:41:35 +0300 From: Slawa Olhovchenkov <slw@zxy.spb.ru> To: Bryan Drewery <bdrewery@FreeBSD.org> Cc: 'freebsd-arch' <freebsd-arch@freebsd.org> Subject: Re: Retiring in-tree GDB Message-ID: <20151020224135.GJ42243@zxy.spb.ru> In-Reply-To: <5626C012.5050009@FreeBSD.org> References: <2678091.es0AGJQ0Ou@ralph.baldwin.cx> <5626B15C.4080408@FreeBSD.org> <20151020215008.GH42243@zxy.spb.ru> <5626BCB6.3000202@FreeBSD.org> <20151020222720.GA6469@zxy.spb.ru> <5626C012.5050009@FreeBSD.org>
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On Tue, Oct 20, 2015 at 03:28:34PM -0700, Bryan Drewery wrote: > On 10/20/2015 3:27 PM, Slawa Olhovchenkov wrote: > > On Tue, Oct 20, 2015 at 03:14:14PM -0700, Bryan Drewery wrote: > > > >> On 10/20/2015 2:50 PM, Slawa Olhovchenkov wrote: > >>> On Tue, Oct 20, 2015 at 02:25:48PM -0700, Bryan Drewery wrote: > >>> > >>>> On 10/20/2015 1:36 PM, John Baldwin wrote: > >>>>> However, I would like to propose that we retire the in-tree GDB for some of > >>>>> our platforms (namely x86) for 11. In particular, I think we should default > >>>> > >>>> Disabling/removing gdb. Definitely. It is unusable in many cases and the > >>>> working gdb is just a 'pkg install' away. > >>>> > >>>>> to enabling lldb and disabling gdb for platforms that meet the following > >>>> > >>>> Why should we include lldb in the base system? It is not needed to build > >>>> or use the system and we can easily provide one from packages. > >>>> > >>>> Arguments about providing a default working system don't work here for > >>>> me as we don't provide perl, python, valgrind, vim, emacs, X11, etc. We > >>>> can provide lldb and gdb on the default DVD though. > >>>> > >>>> If we are actually going to "package base" in 11, we should not be > >>>> adding new things into base that can easily live in ports. Yes, I know > >>>> lldb is already there but I don't think it should be. > >>>> > >>>> Can the same be said for tools such as truss, ktrace or nvi? Sure. The > >>>> discussion is really "what packages should be installed by default". > >>>> The answer should be "what all, or most, users _need_" Do most users > >>>> need a debugger? I don't think so. > >>> > >>> When you need debuger you may don't have way to install it. > >>> > >> > >> How did you get a system? > >> > >> DVD? 'pkg add /mnt/cd/packages/gdb.txz' > >> Network? 'pkg install gdb' > >> > >> Fetching the packages to a USB drive from another system works too using > >> 'pkg fetch -o'. > > > > You talk about healty system. > > System may be semi-broken and need some assistance to r/w mount, for > > example. > > > > How does that relate to gdb? gdb related to kgdb? or kgdb is independed? I am some time use kgdb for change some kernel variables, don't controled by sysctl at that time. > I can only read your example as suggesting we need a /rescue/gdb too. I am don't break system to this state, but may be /rescue/gdb will be good.
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