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authorNamhyung Kim <[email protected]>2023-06-12 16:41:01 -0700
committerArnaldo Carvalho de Melo <[email protected]>2023-06-13 23:40:32 -0300
commit3abfcfd847717d232e36963f31a361747c388fe7 (patch)
treec8dcd5ee4f1bf89fd03fa8d29417748552ae2ebc
parentd15b8c76c964e882593365a5d1b4b924c945b90e (diff)
perf dwarf-aux: Fix off-by-one in die_get_varname()
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 <[email protected]> Fixes: 88fd633cdfa19060 ("perf probe: No need to use formatting strbuf method") Cc: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
-rw-r--r--tools/perf/util/dwarf-aux.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c
index b07414409771..3bff67874563 100644
--- a/tools/perf/util/dwarf-aux.c
+++ b/tools/perf/util/dwarf-aux.c
@@ -1103,7 +1103,7 @@ 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));