So I don't have the faintest idea what caused this to start failing but
the issue here is in mir:
int (*real_open)(char const *path, int flags, mode_t mode);
*(void **)(&real_open) = dlsym(RTLD_NEXT, "open");
return (*real_open)(path, flags, mode);
The declaration for real_open here does not match that used by the
open() function call in umockdev, which uses va_args. This means that
the stack frame gcc creates for mir's wrapper does not have space for a
parameter save area which the code gcc generates for umockdev assumes it
has, and so the stack gets stomped on. So if the prototype in mir is
fixed here (also the one for open64) I bet things will start working
again.
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Touch seeded packages, which is subscribed to umockdev in Ubuntu.
https://bugs.launchpad.net/bugs/1934995
Title:
Broken on ppc64el (toolchain bug?)
Status in umockdev package in Ubuntu:
New
Bug description:
umockdev appears to be broken on ppc64el in impish. Running it on one
of Mir's umockdev-using tests results in:
(impish-ppc64el)root@juju-deb017-porterbox-1:/build/mir-Xn1VqE/umockdev#
umockdev-run ../mir-2.4.1/build-ppc64el/bin/mir_umock_unit_tests
MIR_CLIENT_PLATFORM_PATH=../mir-2.4.1/build-ppc64el/bin/../lib/client-modules/
MIR_SERVER_PLATFORM_PATH=../mir-2.4.1/build-ppc64el/bin/../lib/server-modules/
LD_LIBRARY_PATH=../mir-2.4.1/build-ppc64el/bin/../lib
exec=../mir-2.4.1/build-ppc64el/bin/mir_umock_unit_tests.bin
*** stack smashing detected ***: terminated
umockdev-run: unable to propagate signal 6 to child 15833: No such process
(You can also see this in the Mir 2.4.1-0ubuntu1 build log:
https://launchpadlibrarian.net/546972958/buildlog_ubuntu-impish-
ppc64el.mir_2.4.1-0ubuntu1_BUILDING.txt.gz )
Installing umockdev 0.15.4-1 and libumockdev0 0.15.4-1 from hirsute
results in those tests passing.
Strangely, rebuilding umockdev 0.15.4-1 in a hirsute sbuild
environment results in packages that do *not* pass those tests,
suggesting a toolchain change might be responsible.
Unfortunately, I've tried rebuilding umockdev with gcc-9, gcc-11, and
vala 0.48.12-1 in Impish and none of these appear to work.
ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: umockdev 0.16.1-1
ProcVersionSignature: Ubuntu 5.11.0-20.21+21.10.1-generic 5.11.21
Uname: Linux 5.11.0-20-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu67
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Jul 8 16:04:15 2021
InstallationDate: Installed on 2021-06-26 (11 days ago)
InstallationMedia: Ubuntu 21.10.0 2021.05.28 amd64 "bcachefs" (20210622)
SourcePackage: umockdev
UpgradeStatus: No upgrade log present (probably fresh install)
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