On Mon, Mar 18, 2019 at 05:08:14PM -0300, Arnaldo Carvalho de Melo wrote: > Em Mon, Mar 18, 2019 at 11:07:58AM +0100, Jiri Olsa escreveu: > > On Sat, Mar 16, 2019 at 04:05:41PM +0800, Changbin Du wrote: > > > AddressSanitizer (or ASan) and UndefinedBehaviorSanitizer (or UBSan) are > > > very useful tools to detect program bugs. > > > o AddressSanitizer (or ASan) is a GCC feature that detects memory > > > corruption bugs such as buffer overflows or memory leaks. > > > o UndefinedBehaviorSanitizer (or UBSan) is a fast undefined behavior > > > detector supprted by GCC. UBSan detect undefined behavior of programs > > > at runtime. > > > > > > This patch adds doc for how to use them on perf. Later patches will fix > > > some of the issues disclosed by them. > > > > > > Signed-off-by: Changbin Du <changbin.du@xxxxxxxxx> > > > --- > > > tools/perf/Documentation/Build.txt | 20 ++++++++++++++++++++ > > > 1 file changed, 20 insertions(+) > > > > > > diff --git a/tools/perf/Documentation/Build.txt b/tools/perf/Documentation/Build.txt > > > index f6fc6507ba55..cae6e1d9b901 100644 > > > --- a/tools/perf/Documentation/Build.txt > > > +++ b/tools/perf/Documentation/Build.txt > > > @@ -47,3 +47,23 @@ Those objects are then used in final linking: > > > > > > NOTE this description is omitting other libraries involved, only > > > focusing on build framework outcomes > > > > thanks for adding doc, one nit: > > > > > + > > > +3) buld and install perf > > > > there's already: > > 2) perf build > > ============= > > > > please use something like > > > > 3) perf build for ASan/UBSan > > ============================ > > > > > + $ cd tools/perf > > > + $ make DESTDIR=/usr > > > + $ make DESTDIR=/usr install > > > + > > > +4) build with ASan or UBSan > > > > no need for this label > > Did this and appart from the evsel->counts one that I fixed up, all > applied as-is, I added all the Fixes: tags, please consider doing it > next time. > > Please take a look after I push it to my perf/core branch. > ok, no problem. > Thanks, > > - Arnaldo -- Cheers, Changbin Du
