From: Namhyung Kim namhyung@kernel.org
[ Upstream commit 3abfcfd847717d232e36963f31a361747c388fe7 ]
The die_get_varname() returns "(unknown_type)" string if it failed to find a type for the variable. But it had a space before the opening parenthesis and it made the closing parenthesis cut off due to the off-by-one in the string length (14).
Signed-off-by: Namhyung Kim namhyung@kernel.org Fixes: 88fd633cdfa19060 ("perf probe: No need to use formatting strbuf method") Cc: Adrian Hunter adrian.hunter@intel.com Cc: Ian Rogers irogers@google.com Cc: Ingo Molnar mingo@kernel.org Cc: Jiri Olsa jolsa@kernel.org Cc: Masami Hiramatsu mhiramat@kernel.org Cc: Peter Zijlstra peterz@infradead.org Link: https://lore.kernel.org/r/20230612234102.3909116-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/util/dwarf-aux.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c index f8a10d5148f6f..443374a77c8dc 100644 --- a/tools/perf/util/dwarf-aux.c +++ b/tools/perf/util/dwarf-aux.c @@ -1081,7 +1081,7 @@ int die_get_varname(Dwarf_Die *vr_die, struct strbuf *buf) ret = die_get_typename(vr_die, buf); if (ret < 0) { pr_debug("Failed to get type, make it unknown.\n"); - ret = strbuf_add(buf, " (unknown_type)", 14); + ret = strbuf_add(buf, "(unknown_type)", 14); }
return ret < 0 ? ret : strbuf_addf(buf, "\t%s", dwarf_diename(vr_die));