Re: Cannot build KernelShark on Ubuntu 22.04

Hi Yordan

Thanks for your patience. I did a fresh clone and all built fine.
However, I have a runtime problem:

~/kernelshark_test/kernel-shark$ bin/kernelshark
bin/kernelshark: error while loading shared libraries:
libQt6Core.so.6: cannot open shared object file: No such file or
directory

Is that a LD_LIBRARY_PATH problem?

On Tue, Apr 30, 2024 at 3:59=E2=80=AFPM Yordan Karadzhov <[email protected]=
m> wrote:
>
> Hi,
>
> I just tested building on Ubuntu 22.04 and everything was fine. My guess
> would be that in the build instructions you haven't done the first step,
> namely:
>
> cd kernel-shark/build
>
> Note that it is important that you are in the 'build' directory before
> doing the following steps.
>
> Thanks!
> Yordan
>
> On 4/30/24 17:08, David Aldrich wrote:
> > Thanks Yordan
> >
> > I am now using the instructions at GitHub:
> >
> > https://github.com/yordan-karadzhov/kernel-shark/tree/kernelshark
> >
> > I installed:
> >
> > sudo apt-get install qt6-base-dev qt6-scxml-dev
> > sudo apt-get install libtraceevent-dev libtracefs-dev libtracecmd-dev t=
race-cmd
> >
> > but I see:
> >
> > $ cmake ../
> >
> >   project: Kernel Shark: (version: 2.3.1)
> >
> > CMake Error at CMakeLists.txt:48 (find_package):
> >    By not providing "FindTraceEvent.cmake" in CMAKE_MODULE_PATH this pr=
oject
> >    has asked CMake to find a package configuration file provided by
> >    "TraceEvent", but CMake did not find one.
> >
> >    Could not find a package configuration file provided by "TraceEvent"=
 with
> >    any of the following names:
> >
> >      TraceEventConfig.cmake
> >      traceevent-config.cmake
> >
> >    Add the installation prefix of "TraceEvent" to CMAKE_PREFIX_PATH or =
set
> >    "TraceEvent_DIR" to a directory containing one of the above files.  =
If
> >    "TraceEvent" provides a separate development package or SDK, be sure=
 it has
> >    been installed.
> >
> > On Tue, Apr 30, 2024 at 2:53=E2=80=AFPM Yordan Karadzhov <y.karadz@gmai=
l.com> wrote:
> >>
> >> Hi
> >>
> >> Please try to build KernelShark following the instructions given in th=
e
> >> README file in the git repository and let me know if you still run int=
o
> >> issues.
> >>
> >> Thanks!
> >> Yordan
> >>
> >> On 4/30/24 16:41, David Aldrich wrote:
> >>> Hi
> >>>
> >>> Working on WSL with Ubuntu 22.04 LTS, I am unable to build
> >>> KernelShark. I will try installing it as a package, but perhaps my
> >>> experience below will be useful for the project.
> >>>
> >>> I cloned KernelShark:
> >>>
> >>> git clone git://git.kernel.org/pub/scm/utils/trace-cmd/kernel-shark.g=
it
> >>>
> >>> I followed the instructions at:
> >>>
> >>> https://kernelshark.org/build.html
> >>>
> >>> which requires:
> >>>
> >>> sudo apt-get install qtbase5-dev -y
> >>>
> >>> When I attempt to build KernelShark with:
> >>>
> >>> cmake ../
> >>>
> >>> I see:
> >>>
> >>> CMake Warning at CMakeLists.txt:76 (find_package):
> >>>     Could not find a configuration file for package "Qt6Widgets" that=
 is
> >>>     compatible with requested version "6.3.0".
> >>>
> >>>     The following configuration files were considered but not accepte=
d:
> >>>
> >>>       /usr/lib/x86_64-linux-gnu/cmake/Qt6Widgets/Qt6WidgetsConfig.cma=
ke,
> >>> version: 6.2.4
> >>>       /lib/x86_64-linux-gnu/cmake/Qt6Widgets/Qt6WidgetsConfig.cmake,
> >>> version: 6.2.4
> >>>
> >>> -- Could NOT find XKB (missing: XKB_LIBRARY XKB_INCLUDE_DIR) (Require=
d
> >>> is at least version "0.5.0")
> >>> -- Could NOT find Qt6StateMachine (missing: Qt6StateMachine_DIR)
> >>> CMake Error at CMakeLists.txt:77 (find_package):
> >>>     Found package configuration file:
> >>>
> >>>       /usr/lib/x86_64-linux-gnu/cmake/Qt6/Qt6Config.cmake
> >>>
> >>>     but it set Qt6_FOUND to FALSE so package "Qt6" is considered to b=
e NOT
> >>>     FOUND.  Reason given by package:
> >>>
> >>>     Failed to find Qt component "StateMachine".
> >>>
> >>>     Expected Config file at
> >>>     "/usr/lib/x86_64-linux-gnu/cmake/Qt6StateMachine/Qt6StateMachineC=
onfig.cmake"
> >>>     does NOT exist
> >>>
> >>> This was despite installing:
> >>>
> >>> apt install qt6-base-dev
> >>>