diff options
| author |   Fabian Hemmer <copy@copy.sh> | 2021-02-03 16:15:37 -0500 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-02-17 15:15:06 -0300 |
| commit | cef7af25c9d3a7ea5d0c82424dc8bf93a95b6fc3 (patch) | |
| tree | c55d0626aaa0f3dfdf360a476599b64b73453032 /tools/perf/util/symbol-elf.c | |
| parent | tools api fs: Cache cgroupfs mount point (diff) | |
| download | linux-dev-cef7af25c9d3a7ea5d0c82424dc8bf93a95b6fc3.tar.xz linux-dev-cef7af25c9d3a7ea5d0c82424dc8bf93a95b6fc3.zip | |
perf tools: Add OCaml demangling
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>
Diffstat (limited to 'tools/perf/util/symbol-elf.c')
| -rw-r--r-- | tools/perf/util/symbol-elf.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c index ecc05aa8399d..6dff843fd883 100644 --- a/tools/perf/util/symbol-elf.c +++ b/tools/perf/util/symbol-elf.c @@ -12,6 +12,7 @@ #include "maps.h" #include "symbol.h" #include "symsrc.h" +#include "demangle-ocaml.h" #include "demangle-java.h" #include "demangle-rust.h" #include "machine.h" @@ -251,8 +252,12 @@ static char *demangle_sym(struct dso *dso, int kmodule, const char *elf_name) return demangled; demangled = bfd_demangle(NULL, elf_name, demangle_flags); - if (demangled == NULL) - demangled = java_demangle_sym(elf_name, JAVA_DEMANGLE_NORET); + if (demangled == NULL) { + demangled = ocaml_demangle_sym(elf_name); + if (demangled == NULL) { + demangled = java_demangle_sym(elf_name, JAVA_DEMANGLE_NORET); + } + } else if (rust_is_mangled(demangled)) /* * Input to Rust demangling is the BFD-demangled |