xen-devel.lists.xenproject.org archive mirror
 help / color / mirror / Atom feed
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Ross Lagerwall <ross.lagerwall@citrix.com>
Cc: xen-devel@lists.xen.org
Subject: Re: [PATCH 2/3] Update to use a .config file
Date: Mon, 18 Jul 2016 06:28:21 -0400	[thread overview]
Message-ID: <20160718102821.GB29062@localhost.localdomain> (raw)
In-Reply-To: <b05566c2-a9c8-6c43-a0e1-0ad2a58d9cc7@citrix.com>

On Mon, Jul 18, 2016 at 10:33:49AM +0100, Ross Lagerwall wrote:
> On 07/16/2016 02:55 AM, Konrad Rzeszutek Wilk wrote:
> > > > OK, I'll split it into two. Feel free to create a stable-47 branch in
> > > > livepatch-build-tools.git with only the .config patch. Personally, I'd
> > > > rather not spend much time backporting stuff to support a tech preview
> > > > feature on an older branch.
> > > 
> > > We will need to update the Wiki a bit too...
> > > 
> > > What if I we do something simpler?
> > 
> > And the offical patch:
> > 
> > From 929a92b3dbb8467e0a69b50706b69fb206b51ff3 Mon Sep 17 00:00:00 2001
> > From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
> > Date: Fri, 15 Jul 2016 09:36:23 -0400
> > Subject: [PATCH] Check .config for CONFIG_DEBUG. If not found use --xen-debug
> >  (if specified)
> > 
> > Xen 4.8 ditched the 'debug=y' and now has CONFIG_DEBUG in the
> > .config. To still support 4.7 lets just poke the .config
> > file and see.
> > 
> > Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
> 
> Is the intention that this gets applied on top of "[PATCH
> LIVEPATCH-BUILD-TOOLS v2 1/3] Update to use a .config file" and that "[PATCH
> LIVEPATCH-BUILD-TOOLS v2 2/3] Remove --xen-debug" is dropped?
> 
> If so, then the approach looks OK to me.

Yup.
> 
> > ---
> >  livepatch-build | 20 +++++++++++++++++---
> >  1 file changed, 17 insertions(+), 3 deletions(-)
> > 
> > diff --git a/livepatch-build b/livepatch-build
> > index 6254c29..2165e3b 100755
> > --- a/livepatch-build
> > +++ b/livepatch-build
> > @@ -66,7 +66,7 @@ function build_full()
> >  {
> >      cd "${SRCDIR}/xen" || die
> >      make "-j$CPUS" clean &> "${OUTPUT}/build_full_clean.log" || die
> > -    make "-j$CPUS" debug="$XEN_DEBUG" &> "${OUTPUT}/build_full_compile.log" || die
> > +    make "-j$CPUS" "$XEN_DEBUG" &> "${OUTPUT}/build_full_compile.log" || die
> 
> $XEN_DEBUG needs to be unquoted, otherwise you get a build error from make:
> make: *** empty string invalid as file name.  Stop.
> 
> >      cp xen-syms "$OUTPUT"
> >  }
> > 
> > @@ -87,7 +87,7 @@ function build_special()
> >      cd "${SRCDIR}/xen" || die
> >      sed -i 's/CFLAGS += -nostdinc/CFLAGS += -nostdinc -ffunction-sections -fdata-sections/' Rules.mk
> >      sed -i 's/--section-alignment=0x200000/--section-alignment=0x1000/' arch/x86/Makefile
> > -    make "-j$CPUS" debug="$XEN_DEBUG" &> "${OUTPUT}/build_${name}_compile.log" || die
> > +    make "-j$CPUS" "$XEN_DEBUG" &> "${OUTPUT}/build_${name}_compile.log" || die
> 
> Same here.
> 
> >      sed -i 's/CFLAGS += -nostdinc -ffunction-sections -fdata-sections/CFLAGS += -nostdinc/' Rules.mk
> >      sed -i 's/--section-alignment=0x1000/--section-alignment=0x200000/' arch/x86/Makefile
> > 
> > @@ -165,7 +165,7 @@ usage() {
> >      echo "        -j, --cpus         Number of CPUs to use" >&2
> >      echo "        -k, --skip         Skip build or diff phase" >&2
> >      echo "        -d, --debug        Enable debug logging" >&2
> > -    echo "        --xen-debug        Build debug Xen" >&2
> > +    echo "        --xen-debug        Build debug Xen (if your .config does not have the options)" >&2
> >      echo "        --xen-syms         Build against a xen-syms" >&2
> >      echo "        --depends          Required build-id" >&2
> >      echo "        --prelink          Prelink" >&2
> > @@ -277,6 +277,20 @@ if [ "${SKIP}" != "build" ]; then
> >      cp -f "${CONFIGFILE}" "${OUTPUT}/.config"
> >      cp -f "${OUTPUT}/.config" "xen/.config"
> > 
> > +    grep -q CONFIG_DEBUG "xen/.config"
> > +    if [ $? -eq 0 ]; then
> > +        if [ "$XEN_DEBUG" == "y" ]; then
> > +            grep -q "CONFIG_DEBUG=y" "xen/.config"
> > +            if [ $? -ne 0 ]; then
> > +               echo "CONFIG_DEBUG and --xen-debug mismatch!"
> > +               die
> > +            fi
> 
> This would be cleaner as a oneliner:
> grep -q "CONFIG_DEBUG=y" "xen/.config" || die "CONFIG_DEBUG and --xen-debug
> mismatch!"

Yeah, let me put that in the conditional.

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
https://lists.xen.org/xen-devel

  reply	other threads:[~2016-07-18 10:28 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-10 11:02 [PATCH 1/3] Don't accept fuzz when patching Ross Lagerwall
2016-06-10 11:02 ` [PATCH 2/3] Update to use a .config file Ross Lagerwall
2016-06-14 15:35   ` Konrad Rzeszutek Wilk
2016-06-15  8:08     ` Ross Lagerwall
2016-06-15 14:00       ` Konrad Rzeszutek Wilk
2016-07-14  8:05         ` Ross Lagerwall
2016-07-15 13:36           ` Konrad Rzeszutek Wilk
2016-07-16  1:55             ` Konrad Rzeszutek Wilk
2016-07-18  9:33               ` Ross Lagerwall
2016-07-18 10:28                 ` Konrad Rzeszutek Wilk [this message]
2016-06-10 11:02 ` [PATCH 3/3] Update README.md Ross Lagerwall
2016-06-14 15:36   ` Konrad Rzeszutek Wilk
2016-06-13 10:08 ` [PATCH 1/3] Don't accept fuzz when patching George Dunlap
2016-06-13 10:16   ` Andrew Cooper
2016-06-13 10:57     ` George Dunlap
2016-06-13 10:23   ` Ross Lagerwall
2016-06-14 15:33 ` Konrad Rzeszutek Wilk

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20160718102821.GB29062@localhost.localdomain \
    --to=konrad.wilk@oracle.com \
    --cc=ross.lagerwall@citrix.com \
    --cc=xen-devel@lists.xen.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).