perf record: Add support for sampling indirect jumps

This patch adds a new branch sampling type support for indirect jumps:

  perf record -j ind_jmp .......

It enables analysis of indirect jumps targets. It requires kernel and
possibly hardware support to operate correctly.

Signed-off-by: Stephane Eranian <eranian@google.com>
[ Fixup against: f00898f4e20b (perf tools: Move branch option parsing to own file) ]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: acme@redhat.com
Cc: dsahern@gmail.com
Cc: jolsa@redhat.com
Cc: kan.liang@intel.com
Cc: namhyung@kernel.org
Link: http://lkml.kernel.org/r/1431637800-31061-4-git-send-email-eranian@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/tools/perf/util/parse-branch-options.c b/tools/perf/util/parse-branch-options.c
index 9d999436658fd4294e1c5adfb9d314cfed6d5eeb..a3b1e13a05c0dd493e5bbb8a394705bff6e73fd2 100644 (file)
--- a/tools/perf/util/parse-branch-options.c
+++ b/tools/perf/util/parse-branch-options.c
@@ -26,6 +26,7 @@ static const struct branch_mode branch_modes[] = {
        BRANCH_OPT("in_tx", PERF_SAMPLE_BRANCH_IN_TX),
        BRANCH_OPT("no_tx", PERF_SAMPLE_BRANCH_NO_TX),
        BRANCH_OPT("cond", PERF_SAMPLE_BRANCH_COND),
+       BRANCH_OPT("ind_jmp", PERF_SAMPLE_BRANCH_IND_JUMP),
        BRANCH_END
 };