Bytes/string encoding (#2004)
* tools: uses 'replace' error handler by default in decode()
Tools might encouter characters from non utf-8 charset (e.g. a file
name). When this happen, it's better to replace the unexpected
character by a question mark than crash the tool when all we do is
to print the string.
* tools: fix a bytes/string issue in attach_perf_event()
diff --git a/tools/biosnoop.py b/tools/biosnoop.py
index 7f61180..2b1e77d 100755
--- a/tools/biosnoop.py
+++ b/tools/biosnoop.py
@@ -176,8 +176,8 @@
delta = float(delta) + (event.ts - prev_ts)
print("%-14.9f %-14.14s %-6s %-7s %-2s %-9s %-7s %7.2f" % (
- delta / 1000000, event.name.decode(), event.pid,
- event.disk_name.decode(), rwflg, val,
+ delta / 1000000, event.name.decode('utf-8', 'replace'), event.pid,
+ event.disk_name.decode('utf-8', 'replace'), rwflg, val,
event.len, float(event.delta) / 1000000))
prev_ts = event.ts