A Bug report on 24.10.0-rc4. (regarding libubus)

hnyman · January 5, 2025, 2:19pm

@robimarko

You might read this from year 2021 (and the background info/analysis messages last need in PR):

github.com/openwrt/openwrt

uci,ubus,libubox,lua,libnl-tiny,libjson-c: mark nonshared

openwrt:master ← hnyman:nonshared

opened 03:38PM - 06 Jun 21 UTC

hnyman

+14 -6

cc @aparcar Mark uci, ubus, libubox, lua, libnl-tiny and libjson-c as nonsha…red packages. This helps to keep coherent dependencies if these ABI versioned packages are later updated. Before this commit it is possible to get missing dependencies in target-specific nonshared packages (like iwinfo) that depend on these shared ABI versioned packages. If these are later updated and rebuilt, only the new ABI version will be available for download, while the target-specific packages in releases continue to depend on the old ABI version. After this commit the packages are built along the other nonshared packages by the phase1 images buildbot and will be available at the target/ download directories instead of packages/base dir. That will help to keep a coherent set available. Reference to: https://lists.openwrt.org/pipermail/openwrt-devel/2021-June/035436.html https://lists.openwrt.org/pipermail/openwrt-devel/2021-June/035442.html (This should probably be also backported to at least 21.02, but preferably just a before the rc3 or release, as applying this will soon remove the old shared packages, so the packages need to be in the available nonshared repos.) **Background:** Based on forum discussion, we have currently a broken 21.02.0-rc2 imagebuilder, as libiwinfo can't find the correct libubus version. https://forum.openwrt.org/t/21-02-0-rc2-build-error-on-libubus20210215/98373 My analysis leading to the PR: * ubus is a normal (shared) package in the packages/ downloads dir * the nonshared libiwinfo depends on libubus with ABI specification. * ubus has been updated since rc2, so new ubus and libubus versions are now offered for download * The nonshared libiwinfo is located in the target/ download directory of rc2, and it still depends on the older libubus with the old ABI version. And that old libubus version has already been replaced by the newer libubus version in the normal packages download dir. The libubus dependency difference is visible in the libiwinfo package metadata: libiwinfo from 21.02-SNAPSHOT: ``` Package: libiwinfo20210106 Version: 2021-01-31-4a32b33e-1 Depends: libc, libnl-tiny1, libuci20130104, libubus20210603 ``` From rc2: ``` Package: libiwinfo20210106 Version: 2021-01-31-4a32b33e-1 Depends: libc, libnl-tiny1, libuci20130104, libubus20210215 ``` I went through the ~60 instances of "nonshared" packages in the main OpenWrt repo, and found that toggling six packages to nonshared would solve the common problems: libubox, ubus, uci, lua, libjson-c, libnl-tiny Additionally also elfutils (libelf, libdw) could be toggled to nonshared, but as that is only needed for the non-default "perf" package, I do not find it that important.

That PR was first merged in, but then reverted as also this solution attempt was seen as problematic.