Hi Sergey,
On Sat, Aug 08, 2020 at 12:12:40PM +0300, Sergey Ivanov wrote:
> Hi there.
> I'm newbie ib yocto and (of course) nothing works for me from scratch.
> For testing purposes, i work with yocto 3.1 based on
> 5d47cdf448b6cff5bb7cc5b0ba0426b8235ec478 rev aka dunfell-23.0.0
> MACHINE ?= "qemuarm" and DISTRO ?= "poky" (btw i tried poky-tony as well
> but machine didn't start properly under qemu)
>
> I created my new layer with next structure:
> .
> ├── conf
> │ └── layer.conf
> ├── COPYING.MIT
> ├── README
> └── recipes-ice
> ├── COPYING.MIT
No need.
> └── ice_helloworld
> ├── COPYING.MIT
No need.
> ├── files
> │ ├── COPYING.MIT
> │ └── ice_helloworld.cpp
> └── ice_helloworld_0.1.bb
>
> (i copied COPYING.MIT to )every single place because of error below) and i
> obtained:
>
> NOTE: Executing Tasks
> WARNING: ice_helloworld-helloworld-0.1 do_populate_lic: Could not copy
> license file
> /media/ice/slow_ext4/yocto_poky/build/tmp/work/armv7vet2hf-neon-poky-linux-gnueabi/ice_helloworld/helloworld-0.1/ice_helloworld-helloworld/COPYING.MIT
> to
> /media/ice/slow_ext4/yocto_poky/build/tmp/work/armv7vet2hf-neon-poky-linux-gnueabi/ice_helloworld/helloworld-0.1/license-destdir/ice_helloworld/COPYING.MIT:
> [Errno 2] No such file or directory:
> '/media/ice/slow_ext4/yocto_poky/build/tmp/work/armv7vet2hf-neon-poky-linux-gnueabi/ice_helloworld/helloworld-0.1/ice_helloworld-helloworld/COPYING.MIT'
> ERROR: ice_helloworld-helloworld-0.1 do_populate_lic: QA Issue:
> ice_helloworld: LIC_FILES_CHKSUM points to an invalid file:
> /media/ice/slow_ext4/yocto_poky/build/tmp/work/armv7vet2hf-neon-poky-linux-gnueabi/ice_helloworld/helloworld-0.1/ice_helloworld-helloworld/COPYING.MIT
> [license-checksum]
> ERROR: ice_helloworld-helloworld-0.1 do_populate_lic: Fatal QA errors
> found, failing task.
> ERROR: Logfile of failure stored in:
> /media/ice/slow_ext4/yocto_poky/build/tmp/work/armv7vet2hf-neon-poky-linux-gnueabi/ice_helloworld/helloworld-0.1/temp/log.do_populate_lic.133477
> ERROR: Task
> (/media/ice/slow_ext4/yocto_poky/meta-ice_layer/recipes-ice/ice_helloworld/ice_helloworld_0.1.bb:do_populate_lic)
> failed with exit code '1'
> NOTE: Tasks Summary: Attempted 216 tasks of which 214 didn't need to be
> rerun and 1 failed.
>
>
>
>
> my bb file is:
>
> SUMMARY = "Recipe to build the 'helloworld' in cpp"
> SECTION = "ice"
> LICENSE="MIT"
> #LICENSE_PATH += "${LAYERDIR}"
>
> PN = "ice_helloworld"
No need, default is the name of the recipe file.
> PV = "0.1"
>
No need, default is the version in the recipe file (if there's one).
meta-ice_layer/recipes-ice/ice_helloworld/ice_helloworld_0.1.bb will
produce:
PN = "ice_helloworld"
PV = "0.1"
> SITE = "file://"
> PACKAGE_VERSION_MAJOR = "${@bb.data.getVar('PV',d,1).split('.')[0]}"
> PACKAGE_VERSION_MINOR = "${@bb.data.getVar('PV',d,1).split('.')[1]}"
>
> SRC_URI = "${SITE}${PN}.cpp"
SRC_URI = "${SITE}/${PN}.cpp"
> SRC_URI[md5sum] = "bc9dc64a44f9685d0310b94400a4631c"
> SRC_URI[sha256sum] =
> "789e60072ea96371a35d5653d664b4c4b91e80ce2ea6d523d6caedab06a07a2a"
> LIC_FILES_CHKSUM = "${SITE}COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
>
LIC_FILES_CHKSUM = "${SITE}/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
> do_compile() {
> ${CXX} ${PN}.cpp -o ${PN}
> }
>
Create a makefile/cmake instead, the logic of compiling your SW shouldn't be
in a build system.
> do_install() {
> install -d ${D}${bindir}
> install -m 0755 ${PN} ${D}${bindir}
> }
>
Same, create an install target in your makefile. If you do this well,
you don't even need your do_compile and do_install, it'll be
"automagical".
> what could be wrong here?
> --
1. Missing / in your paths.
2. Also, **never** put uppercase letter or underscores in the name of
a recipe. So your recipe should be:
meta-ice_layer/recipes-ice/ice-helloworld/ice-helloworld_0.1.bb
The underscore is used in multiple places internally to separate
things so using an underscore is breaking some things in weird ways.
Fix 1 and 2 at least, create a makefile for added best practices.
Kind regards,
Quentin
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