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perf tools: Add OCaml demangling

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Detect symbols generated by the OCaml compiler based on their prefix.

Demangle OCaml symbols, returning a newly allocated string (like the
existing Java demangling functionality).

Move a helper function (hex) from tests/code-reading.c to util/string.c

To test:

  echo 'Printf.printf "%d\n" (Random.int 42)' > test.ml
  perf record ocamlopt.opt test.ml
  perf report -d ocamlopt.opt

Signed-off-by: Fabian Hemmer <copy@copy.sh>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LPU-Reference: 20210203211537.b25ytjb6dq5jfbwx@nyu
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Fabian Hemmer
2021-02-03 16:15:37 -05:00
committed by Arnaldo Carvalho de Melo
parent 48859e5293
commit cef7af25c9
11 changed files with 156 additions and 11 deletions
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tools/perf/tests/tests.h
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@@ -119,6 +119,7 @@ int test__time_utils(struct test *t, int subtest);
int test__jit_write_elf(struct test *test, int subtest);
int test__api_io(struct test *test, int subtest);
int test__demangle_java(struct test *test, int subtest);
int test__demangle_ocaml(struct test *test, int subtest);
int test__pfm(struct test *test, int subtest);
const char *test__pfm_subtest_get_desc(int subtest);
int test__pfm_subtest_get_nr(void);