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/fileslower.py b/tools/fileslower.py
index 5caa4ca..25443a2 100755
--- a/tools/fileslower.py
+++ b/tools/fileslower.py
@@ -240,13 +240,13 @@
event = ct.cast(data, ct.POINTER(Data)).contents
ms = float(event.delta_us) / 1000
- name = event.name.decode()
+ name = event.name.decode('utf-8', 'replace')
if event.name_len > DNAME_INLINE_LEN:
name = name[:-3] + "..."
print("%-8.3f %-14.14s %-6s %1s %-7s %7.2f %s" % (
- time.time() - start_ts, event.comm.decode(), event.pid,
- mode_s[event.mode], event.sz, ms, name))
+ time.time() - start_ts, event.comm.decode('utf-8', 'replace'),
+ event.pid, mode_s[event.mode], event.sz, ms, name))
b["events"].open_perf_buffer(print_event, page_cnt=64)
while 1: