linux-kernel - Re: ANNOUNCE: pahole v1.20 (gcc11 DWARF5's default, lots of ELF sections, BTF)

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Date:   Sat, 6 Feb 2021 22:40:59 -0800
From:   Andrii Nakryiko <andrii.nakryiko@...il.com>
To:     Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
Cc:     dwarves@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        bpf <bpf@...r.kernel.org>, Jiri Olsa <jolsa@...nel.org>,
        Jan Engelhardt <jengelh@...i.de>,
        Domenico Andreoli <cavok@...ian.org>,
        Matthias Schwarzott <zzam@...too.org>,
        Andrii Nakryiko <andriin@...com>, Yonghong Song <yhs@...com>,
        Mark Wieelard <mjw@...hat.com>,
        Paul Moore <paul@...l-moore.com>,
        Ondrej Mosnacek <omosnace@...hat.com>,
        Daniel P. Berrangé <berrange@...hat.com>,
        Sedat Dilek <sedat.dilek@...il.com>,
        Tom Stellard <tstellar@...hat.com>
Subject: Re: ANNOUNCE: pahole v1.20 (gcc11 DWARF5's default, lots of ELF
 sections, BTF)

On Fri, Feb 5, 2021 at 3:55 PM Arnaldo Carvalho de Melo
<arnaldo.melo@...il.com> wrote:
>
> Em Fri, Feb 05, 2021 at 02:11:44PM -0800, Andrii Nakryiko escreveu:
> > On Fri, Feb 5, 2021 at 8:25 AM Arnaldo Carvalho de Melo
> > <arnaldo.melo@...il.com> wrote:
> > >
> > > Em Fri, Feb 05, 2021 at 06:33:43AM -0300, Arnaldo Carvalho de Melo escreveu:
> > > > On February 5, 2021 4:39:47 AM GMT-03:00, Andrii Nakryiko <andrii.nakryiko@...il.com> wrote:
> > > > >On Thu, Feb 4, 2021 at 8:34 PM Arnaldo Carvalho de Melo ><arnaldo.melo@...il.com> wrote:
> > > > >> On February 4, 2021 9:01:51 PM GMT-03:00, Andrii Nakryiko
> > > > ><andrii.nakryiko@...il.com> wrote:
> > > > >> >On Thu, Feb 4, 2021 at 2:09 PM Arnaldo Carvalho de
> > > > >Melo><acme@...nel.org> wrote:
> > > > >> >>         The v1.20 release of pahole and its friends is out, mostly
> > > > >> >> addressing problems related to gcc 11 defaulting to DWARF5 for -g,
> > > > >> >> available at the usual places:
> > >
> > > > >> >Great, thanks, Arnaldo! Do you plan to build RPMs soon as well?
> > >
> > > > >> It's in rawhide already, I'll do it for f33, f32 later,
> > >
> > > > >Do you have a link? I tried to find it, but only see 1.19 so far.
> > >
> > > > https://koji.fedoraproject.org/koji/buildinfo?buildID=1703678
> > >
> > > And now for Fedora 33, waiting for karma bumps at:
> > >
> > > https://bodhi.fedoraproject.org/updates/FEDORA-2021-804e7a572c
> > >
> > > fedpkg buidling for f32 now.
>
> > Ok, imported dwarves-1.20. Had to fix two dates in changelog (in
> > spec), day of week didn't match the date, tooling complained about
> > that. Also had to undo cmake_build and cmake_install fanciness,
> > because apparently we don't have them or the support for it is not
> > great. But otherwise everything else looks to be ok.
>
> Send patch please, I wasn't expecting this, if you could do some more
> and send me tooling bits to help me in the release process, if that is
> possible, I'd love to get it, otherwise I'll write it, don't want to go
> thru this one more time, sigh :-(
>

I just "reverted" some bits of spec file to what it used to be
pre-1.19, I think. There is also a work-around for lack of
ldconfig_scriptlets support in our platform, so I have to work around
that. Here's full diff:

diff -u sources/git/rpm/SPECS/dwarves.spec specfiles/dwarves.spec
--- sources/git/rpm/SPECS/dwarves.spec  2021-02-05 11:19:54.364938716 -0800
+++ specfiles/dwarves.spec      2021-02-05 13:26:52.502859609 -0800
@@ -3,12 +3,14 @@

 Name: dwarves
 Version: 1.20
-Release: 1%{?dist}
+Release: 1fb1%{?dist}
 License: GPLv2
 Summary: Debugging Information Manipulation Tools (pahole & friends)
 URL: http://acmel.wordpress.com
 Source: http://fedorapeople.org/~acme/dwarves/%{name}-%{version}.tar.xz
 Requires: %{libname}%{libver} = %{version}-%{release}
+Requires(post): /sbin/ldconfig
+Requires(postun): /sbin/ldconfig
 BuildRequires: gcc
 BuildRequires: cmake >= 2.8.12
 BuildRequires: zlib-devel
@@ -68,13 +70,14 @@

 %build
 %cmake -DCMAKE_BUILD_TYPE=Release .
-%cmake_build
+make VERBOSE=1 %{?_smp_mflags}

 %install
 rm -Rf %{buildroot}
-%cmake_install
+make install DESTDIR=%{buildroot}

-%ldconfig_scriptlets -n %{libname}%{libver}
+%post -p /sbin/ldconfig
+%postun -p /sbin/ldconfig

 %files
 %doc README.ctracer
@@ -295,7 +298,7 @@
 * Sat Nov 20 2010 Arnaldo Carvalho de Melo <acme@...hat.com> - 1.9-1
 - New release

-* Tue Feb 08 2010 Fedora Release Engineering
<rel-eng@...ts.fedoraproject.org> - 1.8-2
+* Mon Feb 08 2010 Fedora Release Engineering
<rel-eng@...ts.fedoraproject.org> - 1.8-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_15_Mass_Rebuild

 * Fri Dec  4 2009 Arnaldo Carvalho de Melo <acme@...hat.com> - 1.8-1
@@ -446,7 +449,7 @@
 - Fix emission of arrays of structs, unions, etc
 - use sysconf for the default cacheline size

-* Wed Jan 18 2007 Arnaldo Carvalho de Melo <acme@...stprotocols.net>
+* Thu Jan 18 2007 Arnaldo Carvalho de Melo <acme@...stprotocols.net>
 - fab0db03ea9046893ca110bb2b7d71b764f61033
 - pdwtags added

>
> - Arnaldo