[Bug translator/10822] New: procfs file created too late

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

I've investigated some testsuite/systemtap.base/onoffprobe.exp failures I was
seeing.  After seeing the output from the begin probe, the testcase immediately
tries to write to the procfs file created by the script.  This kept failing.

In looking at the translator-created C file, I see this:

====
   for (i=0; i<2; i++) {                                                       
      struct stap_be_probe* stp = & stap_be_probes [i];                         
      if (stp->type == 1)                                                       
        enter_be_probe (stp);                                                   
    }                                                                           
    for (i=0; i<2; i++) {                                                       
      struct stap_be_probe* stp = & stap_be_probes [i];                         
      if (stp->type == 2)                                                       
        enter_be_probe (stp);                                                   
    }                                                                           
    goto out;                                                                   
  }                                                                             
  for (i = 0; i < 1; i++) {                                                     
    struct stap_procfs_probe *spp = &stap_procfs_probes[i];                     
    if (spp->read_pp)                                                           
      probe_point = spp->read_pp;                                               
    else                                                                        
      probe_point = spp->write_pp;                                              
    rc = _stp_create_procfs(spp->path, i);                                      
====

>From the above, it appears that the begin probes are run, then the procfs file
is created.  I don't believe this is correct - begin probes should be run after
all the other probes types module init code has been run.

-- 
           Summary: procfs file created too late
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: translator
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: dsmith at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=10822

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