[Bug bpf/24926] New: non-ascii characters not printing on stapbpf

sapatel at redhat dot com sourceware-bugzilla@sourceware.org
Wed Aug 21 16:10:00 GMT 2019


https://sourceware.org/bugzilla/show_bug.cgi?id=24926

            Bug ID: 24926
           Summary: non-ascii characters not printing on stapbpf
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: bpf
          Assignee: systemtap at sourceware dot org
          Reporter: sapatel at redhat dot com
  Target Milestone: ---

All unicode characters seem to be printing on the normal Systemtap backend but,
not on stapbpf, which seems to be limited to ASCII characters only. 

This can be seen with the following scripts: 

'probe oneshot { print("官话") }'
'probe oneshot { print("संस्कृतम्") }'

After some discussion with serhei, it was noted that that stapbpf might be
assuming that a single character is a single byte.

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