Messages in this thread | | | Date | Wed, 7 Mar 2018 16:58:33 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [RFC V3 1/3] perf, tools: Support wildcards on pmu name in dynamic pmu events |
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Em Wed, Mar 07, 2018 at 02:49:50PM -0500, Agustin Vega-Frias escreveu: > On 2018-03-07 14:39, Arnaldo Carvalho de Melo wrote: > > Em Wed, Mar 07, 2018 at 04:05:43PM -0300, Arnaldo Carvalho de Melo > > escreveu: > > > Em Wed, Mar 07, 2018 at 04:05:09PM -0300, Arnaldo Carvalho de Melo > > > escreveu: > > > > 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... ;-)) > > > > > > I'll try this route, btw, no need to send more patches for now. > > > > So, with the patch at the end of this message, it works now in those > > systems: > > > > [root@jouet ~]# dm > > 1 alpine:3.4 : Ok gcc (Alpine 5.3.0) 5.3.0 > > 2 alpine:3.5 : Ok gcc (Alpine 6.2.1) 6.2.1 > > 20160822 > > 3 alpine:3.6 : Ok gcc (Alpine 6.3.0) 6.3.0 > > 4 alpine:edge : Ok gcc (Alpine 6.4.0) 6.4.0 > > 5 amazonlinux:1 : Ok gcc (GCC) 4.8.5 20150623 > > (Red Hat 4.8.5-11) > > 6 amazonlinux:2 : Ok gcc (GCC) 7.2.1 20170915 > > (Red Hat 7.2.1-2) > > 7 android-ndk:r12b-arm : Ok arm-linux-androideabi-gcc > > (GCC) 4.9.x 20150123 (prerelease) > > 8 android-ndk:r15c-arm : Ok arm-linux-androideabi-gcc > > (GCC) 4.9.x 20150123 (prerelease) > > 9 centos:5 : Ok gcc (GCC) 4.1.2 20080704 > > (Red Hat 4.1.2-55) > > 10 centos:6 : Ok gcc (GCC) 4.4.7 20120313 > > (Red Hat 4.4.7-18) > > > > I stopped the test at this point to process some more patches, will > > restart the tests with those extra patches and if all goes well with the > > other 46 build environments, push upstream, thanks. > > > > - Arnaldo > > > > diff --git a/tools/perf/util/parse-events.y > > b/tools/perf/util/parse-events.y > > index 316ac073aa78..18473be7d787 100644 > > --- a/tools/perf/util/parse-events.y > > +++ b/tools/perf/util/parse-events.y > > @@ -9,6 +9,13 @@ > > #define YYDEBUG 1 > > > > #include <fnmatch.h> > > +/* > > + * GNU extension, so better define it to 0 for systems such > > + * as Android and Alpine Linux. > > + */ > > +#ifndef FNM_EXTMATCH > > +#define FNM_EXTMATCH 0 > > +#endif > > #include <linux/compiler.h> > > #include <linux/list.h> > > #include <linux/types.h> > > Hey Jiri, > > The downside is that, while the compilation now works on those > systems, the pattern will not work as intended in them :o( > Let me cook something and send it ASAP.
Well, do you think this is really a big problem? Even if we add nice docs?
I haven't tested something that works with this syntax on a capable system and then on one that doesn't, to see how it would behave, probably it would say something about a syntax error?
- Arnaldo
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