On Mon, Nov 19, 2018 at 08:10:06AM -0800, Arnaldo Carvalho de Melo wrote: > Em Thu, Nov 01, 2018 at 06:00:01PM +0100, Jiri Olsa escreveu: > > Adding the current working directory to be part of the cookie > > and restoring it in the nsinfo__mountns_exit call. > > > diff --git a/tools/perf/util/namespaces.c b/tools/perf/util/namespaces.c > > index cf8bd123cf73..fb0458b7e6aa 100644 > > --- a/tools/perf/util/namespaces.c > > +++ b/tools/perf/util/namespaces.c > > > @@ -199,9 +201,13 @@ void nsinfo__mountns_enter(struct nsinfo *nsi, > > if (snprintf(curpath, PATH_MAX, "/proc/self/ns/mnt") >= PATH_MAX) > > return; > > > + oldcwd = get_current_dir_name(); > > Breaks the build with bionic (Android), where get_current_dir_name() is > not available: > > /tmp/build/perf/libperf.a(libperf-in.o):hist.c:function > nsinfo__mountns_enter: error: undefined reference to 'get_current_dir_name' > collect2: error: ld returned 1 exit status > Makefile.perf:534: recipe for target '/tmp/build/perf/perf' failed > make[2]: *** [/tmp/build/perf/perf] Error 1 > Makefile.perf:206: recipe for target 'sub-make' failed > make[1]: *** [sub-make] Error 2 > Makefile:69: recipe for target 'all' failed > make: *** [all] Error 2 > make: Leaving directory '/git/linux/tools/perf' > [root@seventh ~]# > > The container builds are ongoing, its possoble that this becomes an > issue in uCLibc, wasn't on musl libc (Alpine Linux).
will check, thanks jirka
