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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.c | |
| parent | perf machine: Do not bail out if not managing to read ref reloc symbol (diff) | |
| download | linux-dev-caf8a0d0499792ac1b3f5b0b84e5890df0039cb6.tar.xz linux-dev-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.c')
| -rw-r--r-- | tools/perf/util/machine.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index b277984aaa93..bdc33ce40bdc 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -43,6 +43,7 @@ int machine__init(struct machine *machine, const char *root_dir, pid_t pid) machine->symbol_filter = NULL; machine->id_hdr_size = 0; + machine->kptr_restrict_warned = false; machine->comm_exec = false; machine->kernel_start = 0; |