linux-kernel - Re: [RFC V3 1/3] perf, tools: Support wildcards on pmu name in dynamic pmu events

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Message-ID: <20180307190509.GQ3701@kernel.org>
Date:   Wed, 7 Mar 2018 16:05:09 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Andi Kleen <ak@...ux.intel.com>
Cc:     Agustin Vega-Frias <agustinv@...eaurora.org>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>, timur@...eaurora.org
Subject: Re: [RFC V3 1/3] perf, tools: Support wildcards on pmu name in
 dynamic pmu events

Em Wed, Mar 07, 2018 at 10:54:15AM -0800, Andi Kleen escreveu:
> > Sorry about that. That's probably because FNM_EXTMATCH is a GNU extension,
> > not POSIX, and the Alpine and Android runtimes likely don't implement
> > that...
> > I'll send a fix reverting back to the strncmp to ignore the uncore_ prefix,
> > and dropping that extension.
> 
> Just don't set it? Even the basic glob patterns are useful.

Or use:

#ifndef FNM_EXTMATCH
#define FNM_EXTMATCH 0
#endif

So on systems without it, its not used, while on GNU systems, we have
that functionality (pretty fancy, someone may need that... ;-))

- Arnaldo