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SubjectRe: [PATCH v3 7/7] selftests/ftrace: Add test case for synthetic event syntax errors
On Wed, 14 Oct 2020 11:06:36 +0900
Masami Hiramatsu <mhiramat@kernel.org> wrote:

> Hi Tom,
>
> On Tue, 13 Oct 2020 09:17:58 -0500
> Tom Zanussi <zanussi@kernel.org> wrote:
>
> > Add a selftest that verifies that the syntax error messages and caret
> > positions are correct for most of the possible synthetic event syntax
> > error cases.
> >
> > Signed-off-by: Tom Zanussi <zanussi@kernel.org>
> > ---
> > .../trigger-synthetic_event_syntax_errors.tc | 19 +++++++++++++++++++
> > 1 file changed, 19 insertions(+)
> > create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc
> >
> > diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc
> > new file mode 100644
> > index 000000000000..ada594fe16cb
> > --- /dev/null
> > +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc
> > @@ -0,0 +1,19 @@
> > +#!/bin/sh
> > +# SPDX-License-Identifier: GPL-2.0
> > +# description: event trigger - test synthetic_events syntax parser errors
> > +# requires: synthetic_events error_log
>
> This also requires dynamic strings support. So, its "requires" line should be
>
> # requires: synthetic_events error_log "char name[]' >> synthetic_events":README
>
> > +
> > +check_error() { # command-with-error-pos-by-^
> > + ftrace_errlog_check 'synthetic_events' "$1" 'synthetic_events'
> > +}
> > +
>
> BTW, some errors looks a bit odd.
>
> > +check_error 'myevent ^chr arg' # INVALID_TYPE
> > +check_error 'myevent ^char str[];; int v' # INVALID_TYPE
>
> I think there is a wrong "void" argument between ";", instead of invalid type.
>
> > +check_error 'myevent char ^str]; int v' # INVALID_NAME
> > +check_error 'myevent char ^str;[]' # INVALID_NAME
>
> This is also not an invalid name but '[]' is an invalid type.
>
> > +check_error 'myevent ^char str[; int v' # INVALID_TYPE
> > +check_error '^mye;vent char str[]' # BAD_NAME
> > +check_error 'myevent char str[]; ^int' # INVALID_FIELD
>
> Isn't it an incomplete command?
>
> > +check_error '^myevent' # INCOMPLETE_CMD
> > +
> > +exit 0
>

Hi Masami,

I finished testing this series along with other patches (some from you),
and I'm ready to push this to next, and hopefully soon to Linus. You have a
"tested-by" for the entire series. Are you OK with this patch too? Can we
push this forward and fix up any issues you have later?

-- Steve

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