Em Tue, Apr 13, 2021 at 02:07:57PM -0500, Rob Herring escreveu:
> On Tue, Apr 13, 2021 at 1:39 PM Arnaldo Carvalho de Melo
> wrote:
> > > --- a/tools/lib/perf/evsel.c
> > > +int perf_evsel__mmap(struct perf_evsel *evsel, int pages)
> > > +{
> > > + int ret, cpu, thread;
> > Where is the count
On Tue, Apr 13, 2021 at 1:39 PM Arnaldo Carvalho de Melo
wrote:
>
> Em Tue, Apr 13, 2021 at 12:16:04PM -0500, Rob Herring escreveu:
> > In order to support usersapce access, an event must be mmapped. While
> > there's already mmap support for evlist, the usecase is a bit different
> > than the sel
Em Tue, Apr 13, 2021 at 12:16:04PM -0500, Rob Herring escreveu:
> In order to support usersapce access, an event must be mmapped. While
> there's already mmap support for evlist, the usecase is a bit different
> than the self monitoring with userspace access. So let's add a new
> perf_evsel__mmap()
In order to support usersapce access, an event must be mmapped. While
there's already mmap support for evlist, the usecase is a bit different
than the self monitoring with userspace access. So let's add a new
perf_evsel__mmap() function to mmap an evsel. This allows implementing
userspace access as
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