Re: [PATCH v4 0/2] Makefile: libfdt: build only the strict necessary

[David Gibson]

On Fri, May 15, 2020 at 09:56:25AM +0200, Claudio Fontana wrote:
> On 5/15/20 9:50 AM, Philippe Mathieu-Daudé wrote:
> > Hi Claudio,
> > 
> > On 5/14/20 9:38 PM, Claudio Fontana wrote:
> >> v3 -> v4: NB! only useful when updating to latest dtc (not in QEMU yet)
> >>
> >> * changed the approach to leverage new upstream dtc Makefile,
> >>    needs dtc submodule update to include upstream dtc commit
> >>    85e5d839847af54efab170f2b1331b2a6421e647.
> > 
> > I don't have this commit locally:
> > 
> > fatal: bad object 85e5d839847af54efab170f2b1331b2a6421e647
> > 
> > My remote is https://git.qemu.org/git/dtc.git, might it be de-synchronized?
> 
> Hi Philippe, maybe that commit is not in the qemu dtc.git yet, only in 
> David's tree at:
> 
> https://github.com/dgibson/dtc.git

Oops, I forgot to push it to the master tree at
git://git.kernel.org/pub/scm/utils/dtc/dtc.git

Done now.  The qemu.org mirror should update within a day or so.

> >> * LIBFDT_srcdir does not exist anymore in upstream dtc: it is also
> >>    not used anymore.
> > 
> > Why not include the submodule update in the first patch?
> 
> Right, I am not sure how git.qemu.org/git/dtc.git is updated?
> 
> I guess once it is, I should include the submodule update.
> 
> Thanks!
> 
> Claudio
> 
> > 
> >>
> >> * LIBFDT_lib: need to avoid building libfdt.so at least for now, so pass as
> >>    empty to avoid building the .so. This is to avoid breaking existing
> >>    trees with objects already compiled without -fPIC.
> >>
> >> * clean: no need to make dtc clean target, every artifact is captured by
> >>    global clean rule
> >>
> >> v2 -> v3:
> >>
> >> * changed into a 2 patch series; in the second patch we remove the old
> >>    compatibility gunks that were meant for removal some time after 4.1.
> >>
> >> * renamed the libfdt PHONY rule to dtc/all, with the intent to make
> >>    existing working trees forward and backward compatible across the 
> >> change.
> >>
> >> v1 -> v2:
> >>
> >> * fix error generated when running UNCHECKED_GOALS without prior configure,
> >>    for example during make docker-image-fedora. Without configure, DSOSUF 
> >> is
> >>    empty, and the module pattern rule in rules.mak that uses this variable
> >>    can match too much; provide a default in the Makefile to avoid it.
> >>
> >> * only attempt to build the archive when there is a non-empty list of 
> >> objects.
> >>    This could be done in general for the %.a: pattern in rules.mak, but 
> >> maybe
> >>    there are valid reasons to build an empty .a?
> >>
> >> * removed some intermediate variables that did not add much value
> >>    (LIBFDT_srcdir, LIBFDT_archive)
> >>
> >> Tested locally with 3 VPATH configurations (no-, VPATH, VPATH in src 
> >> subdir),
> >> and with docker-image-fedora, docker-test-debug@fedora that failed before.
> >>
> >> Claudio Fontana (2):
> >>    Makefile: libfdt: build only the strict necessary
> >>    Makefile: remove old compatibility gunks
> >>
> >>   Makefile  | 32 ++++++++++++++++----------------
> >>   configure |  6 +-----
> >>   rules.mak |  2 ++
> >>   3 files changed, 19 insertions(+), 21 deletions(-)
> >>
> > 
> 

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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