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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-05-17 11:56:24 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-05-20 11:43:54 -0300 |
| commit | caf8a0d0499792ac1b3f5b0b84e5890df0039cb6 (patch) | |
| tree | 3c45e30c29ada6d50f6a779f50dc65bc2760d47e /tools/perf/util/machine.h | |
| parent | 45e90056904b12d8dd74e0d2ea6dfd5e4394104d (diff) | |
| download | linux-caf8a0d0499792ac1b3f5b0b84e5890df0039cb6.tar.gz linux-caf8a0d0499792ac1b3f5b0b84e5890df0039cb6.tar.bz2 linux-caf8a0d0499792ac1b3f5b0b84e5890df0039cb6.zip | |
perf trace: Warn when trying to resolve kernel addresses with kptr_restrict=1
Hook into the libtraceevent plugin kernel symbol resolver to warn the
user that that can't happen with kptr_restrict=1.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-9gc412xx1gl0lvqj1d1xwlyb@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/machine.h')
| -rw-r--r-- | tools/perf/util/machine.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h index 83f46790c52f..41ac9cfd416b 100644 --- a/tools/perf/util/machine.h +++ b/tools/perf/util/machine.h @@ -28,6 +28,7 @@ struct machine { pid_t pid; u16 id_hdr_size; bool comm_exec; + bool kptr_restrict_warned; char *root_dir; struct rb_root threads; pthread_rwlock_t threads_lock; |