[oe] [meta-oe][PATCH 2/2] devmem2: use different filename to avoid checksum conflicts

[Denys Dmytriyenko]

On Mon, Jun 05, 2017 at 01:11:09PM +0200, Martin Jansa wrote:
> You should mention to which branch you want this to be applied and CC the
> maintainer of that branch.
> 
> I can move it to correct bundle in patchwork, but that can still easily
> slip release maintainer attention.
> 
> Also I wonder why Denys added do_unpack_append() instead of just changing
> do_compile to:
> 
> ${CC} -o devmem2 devmem2-new.c ${CFLAGS} ${LDFLAGS}

Because the patch won't apply - it expects devmem2.c:

http://lists.openembedded.org/pipermail/openembedded-devel/2017-March/111799.html
http://lists.openembedded.org/pipermail/openembedded-devel/2017-March/111807.html


> but that should be improved in master first to keep your backport request
> identical with what we got in master.
> 
> On Fri, Jun 2, 2017 at 7:55 AM, Martin Siegumfeldt <mns at gomspace.com> wrote:
> 
> > From: Denys Dmytriyenko <denys at ti.com>
> >
> > The newly resurrected devmem2.c file besides having a new location, also
> > updates its header, producing different checksums, which would conflict
> > with any previously cached or mirrored instances. To avoid such conflicts,
> > use a different filename in fetch(). Rename it back to original name at
> > unpack() for devmem2-fixups-2.patch to succeed w/o modifications.
> >
> > WARNING: devmem2-1.0-r7 do_fetch: Fetcher failure for URL: '
> > http://www.free-electrons.com/pub/mirror/devmem2.c'. Checksum mismatch!
> > File: '/OE/master/downloads/devmem2.c' has md5 checksum
> > be12c0132a1ae118cbf5e79d98427c1d when e23f236e94be4c429aa1ceac0f01544b
> > was expected
> > File: '/OE/master/downloads/devmem2.c' has sha256 checksum
> > ec382c90af3ef2f49695ff14a4d6521e58ac482c4e29d6c9ebca8768f699c191 when
> > 3b15515693bae1ebd14d914e46d388edfec2175829ea1576a7a0c8606ebbe639 was
> > expected
> > If this change is expected (e.g. you have upgraded to a new version
> > without updating the checksums) then you can use these lines within the
> > recipe:
> > SRC_URI[md5sum] = "be12c0132a1ae118cbf5e79d98427c1d"
> > SRC_URI[sha256sum] = "ec382c90af3ef2f49695ff14a4d652
> > 1e58ac482c4e29d6c9ebca8768f699c191"
> > Otherwise you should retry the download and/or check with upstream to
> > determine if the file has become corrupted or otherwise unexpectedly
> > modified.
> >
> > WARNING: devmem2-1.0-r7 do_fetch: Renaming /OE/sources/devmem2.c to
> > /OE/sources/devmem2.c_bad-checksum_be12c0132a1ae118cbf5e79d98427c1d
> >
> > Signed-off-by: Denys Dmytriyenko <denys at ti.com>
> > Signed-off-by: Martin Jansa <Martin.Jansa at gmail.com>
> > ---
> >  meta-oe/recipes-support/devmem2/devmem2.bb | 6 +++++-
> >  1 file changed, 5 insertions(+), 1 deletion(-)
> >
> > diff --git a/meta-oe/recipes-support/devmem2/devmem2.bb
> > b/meta-oe/recipes-support/devmem2/devmem2.bb
> > index c42eb5e..c86eb2e 100644
> > --- a/meta-oe/recipes-support/devmem2/devmem2.bb
> > +++ b/meta-oe/recipes-support/devmem2/devmem2.bb
> > @@ -3,12 +3,16 @@ LICENSE = "GPLv2+"
> >  LIC_FILES_CHKSUM = "file://devmem2.c;endline=38;md5=
> > a9eb9f3890384519f435aedf986297cf"
> >  PR = "r7"
> >
> > -SRC_URI = "http://www.free-electrons.com/pub/mirror/devmem2.c \
> > +SRC_URI = "http://www.free-electrons.com/pub/mirror/devmem2.c;
> > downloadfilename=devmem2-new.c \
> >             file://devmem2-fixups-2.patch;apply=yes;striplevel=0"
> >  S = "${WORKDIR}"
> >
> >  CFLAGS += "-DFORCE_STRICT_ALIGNMENT"
> >
> > +python do_unpack_append() {
> > +    os.rename("devmem2-new.c", "devmem2.c")
> > +}
> > +
> >  do_compile() {
> >      ${CC} -o devmem2 devmem2.c ${CFLAGS} ${LDFLAGS}
> >  }
> > --
> > 2.9.3
> >
> >
> -- 
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