[Bug general/4250] New: ftrace does not follow threads

["cagney at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

$ ../bindir/ftrace -o /tmp/ftrace.out ../bindir/ftrace
ftrace: no command or PID specified
ftrace: Try 'ftrace -help' for more information
$ head !$
head /tmp/ftrace.out
Ftrace.main() Proc.getPid() 2617
....
$ grep -v 2617.2617 !$
grep -v 2617.2617 /tmp/ftrace.out
Ftrace.main() Proc.getPid() 2617
Ftrace.main() Proc.getExe()
/home/scratch/frysk/native/frysk-core/frysk/bindir/ftrace

i.e., only output from the main thread is present

-- 
           Summary: ftrace does not follow threads
           Product: frysk
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: general
        AssignedTo: frysk-bugzilla at sourceware dot org
        ReportedBy: cagney at redhat dot com
OtherBugsDependingO 2245
             nThis:


http://sourceware.org/bugzilla/show_bug.cgi?id=4250

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