[PATCH 15/17] perf tests task_analyzer: fix bad substitution ${$1}

[Namhyung Kim]

Hello Aditya,

On Wed, Jun 21, 2023 at 3:05 AM Aditya Gupta <adityag at linux.ibm.com> wrote:
>
> Hello Namhyung,
>
> On 21/06/23 06:18, Namhyung Kim wrote:
> > Hello,
> >
> > On Tue, Jun 13, 2023 at 1:06 PM Arnaldo Carvalho de Melo
> > <acme at kernel.org> wrote:
> >> Em Tue, Jun 13, 2023 at 10:11:43PM +0530, Athira Rajeev escreveu:
> >>> This issue due to ${$1} caused all function calls to give error in
> >>> `find_str_or_fail` line, and so no test runs completely. But
> >>> 'perf test "perf script task-analyzer tests"' wrongly reports
> >>> that tests passed with the status OK, which is wrong considering
> >>> the tests didn't even run completely
> >>>
> >>> Fixes: e8478b84d6ba ("perf test: add new task-analyzer tests")
> >>> Signed-off-by: Athira Rajeev <atrajeev at linux.vnet.ibm.com>
> >>> Signed-off-by: Kajol Jain <kjain at linux.ibm.com>
> >>> Signed-off-by: Aditya Gupta <adityag at linux.ibm.com>
> >>> ---
> > I'm seeing a different error even after this fix.
> > Can you please take a look?
> >
> > Thanks,
> > Namhyung
> >
> >
> > $ sudo ./perf test -v task
> > 114: perf script task-analyzer tests                                 :
> > --- start ---
> > test child forked, pid 1771042
> > Please specify a valid report script(see 'perf script -l' for listing)
> > FAIL: "invocation of perf command failed" Error message: ""
> > FAIL: "test_basic" Error message: "Failed to find required string:'Comm'."
> > Please specify a valid report script(see 'perf script -l' for listing)
> > FAIL: "invocation of perf command failed" Error message: ""
> > FAIL: "test_ns_rename" Error message: "Failed to find required string:'Comm'."
> > ...
> > test child finished with -1
> > ---- end ----
> > perf script task-analyzer tests: FAILED!
> Can you please check if your environment has libtraceevent devel
> libraries (or did you compile with `make NO_LIBTRACEEVENT=1`) ? When
> libtraceevent support is not there, perf record fails and so perf.data
> doesn't contain the strings it's searching for and hence those errors
>
> The error you mentioned has been mentioned and fixed in patch 17/17 of
> this series.

Thanks for your reply but It has libtraceevent.  Also, shouldn't it
skip if it's not?

Thanks,
Namhyung