perf inject: Add --kallsyms parameter

Let perf inject take --kallsyms parameter the same as perf script and
perf report do.

That is needed for decoding Instruction Trace data using a copy of
/proc/kcore for the kernel object because the kallsyms path is used to
locate that copy.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1406035081-14301-30-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/Documentation/perf-inject.txt b/tools/perf/Documentation/perf-inject.txt
index a00a34276c54621c9ef71a72b35e6ffc3579b42d..dc7442cf3d7f80920b8ba36f00fb8c0da972534b 100644 (file)
--- a/tools/perf/Documentation/perf-inject.txt
+++ b/tools/perf/Documentation/perf-inject.txt
@@ -41,6 +41,9 @@ OPTIONS
        tasks slept. sched_switch contains a callchain where a task slept and
        sched_stat contains a timeslice how long a task slept.
 
+--kallsyms=<file>::
+       kallsyms pathname
+
 SEE ALSO
 --------
 linkperf:perf-record[1], linkperf:perf-report[1], linkperf:perf-archive[1]

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index cf6a605a13e8ba4422e5937a885f1c7607ec4405..9a02807387d6c25b9c41236f9404a88da5580a3f 100644 (file)
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -439,6 +439,8 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused)
                            "where and how long tasks slept"),
                OPT_INCR('v', "verbose", &verbose,
                         "be more verbose (show build ids, etc)"),
+               OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file",
+                          "kallsyms pathname"),
                OPT_END()
        };
        const char * const inject_usage[] = {