Re: [PATCH v2 3/8] kernel-shark: Add logic for the plugins search path

[Steven Rostedt <rostedt@goodmis.org>]

On Thu,  2 May 2019 15:40:04 +0300
Yordan Karadzhov <ykaradzhov@vmware.com> wrote:

> If the application has not been started from its installation location
> and the the directory
> 
>  app_file_path + "../../kernel-shark/lib"
> 
> exists, all build-in plugins will be loaded from this directory. In any
> other case all build-in plugins will be loaded from
> 
> _INSTALL_PREFIX/lib/kshark/plugins/
> 
> Suggested-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
> Reviewed-by: Slavomir Kaslev <kaslevs@vmware.com>
> Signed-off-by: Yordan Karadzhov <ykaradzhov@vmware.com>
> ---
>  kernel-shark/src/KsUtils.cpp            | 40 ++++++++++++++++++-------
>  kernel-shark/src/KsUtils.hpp            |  2 ++
>  kernel-shark/src/plugins/CMakeLists.txt |  2 +-
>  3 files changed, 32 insertions(+), 12 deletions(-)
> 

Hi Yordan,

After applying this patch, kernelshark's behavior for loading trace.dat
changed. It no longer looks for the file in the current directory. If I
run:

 # trace-cmd record -e sched_switch sleep 1
 # kernelshark

It loads without loading the produced trace.dat.

If I run:

 # kernelshark trace.dat

I get an error message stating:

 "Unable to find file trace.dat"

-- Steve