[Bug translator/6898] New: marker $$args / $$parms

[Bug translator/6898] New: marker $$args / $$parms

[fche at redhat dot com]

In order to make multi-marker tracing easier, let's add
$$vars / $$parms to marker-based probe points.  One of
these could try to interpret the incoming $format; the
other could synthesize one like the kprobes-related $$vars do.

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           Summary: marker $$args / $$parms
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: translator
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: fche at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=6898

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[Bug translator/6898] marker $$args / $$parms

[wenji dot huang at oracle dot com]

------- Additional Comments From wenji dot huang at oracle dot com  2009-07-23 09:12 -------
Created an attachment (id=4079)
 --> (http://sourceware.org/bugzilla/attachment.cgi?id=4079&action=view)
patch and testcase

With this patch, stap can support $$vars or $$parms for kernel marker. 
For example in FC11.

$ stap -l 'kernel.mark("ext4_da_writepage")'
kernel.mark("ext4_da_writepage").format("dev %s ino %lu page_index %lu")

$ stap -e 'probe kernel.mark("ext4_da_writepage") { printf("%s\n",$$parms)}'
$arg1=dm-0 $arg2=0x3fc25 $arg3=0x0
$arg1=dm-0 $arg2=0x3fc25 $arg3=0x1
$arg1=dm-0 $arg2=0x3fc25 $arg3=0x2
$arg1=dm-0 $arg2=0x3fc25 $arg3=0x3
$arg1=dm-0 $arg2=0x3fc25 $arg3=0x4
$arg1=dm-0 $arg2=0x3fc25 $arg3=0x5
$arg1=dm-0 $arg2=0x3fc25 $arg3=0x6
$arg1=dm-0 $arg2=0x3fc25 $arg3=0x7

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http://sourceware.org/bugzilla/show_bug.cgi?id=6898

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[Bug translator/6898] marker $$args / $$parms

[wenji dot huang at oracle dot com]

------- Additional Comments From wenji dot huang at oracle dot com  2009-07-24 05:15 -------
commit	92dad52bd5d51d32fc171620736bdc0ba9b890c4

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=6898

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[Bug translator/6898] marker $$args / $$parms

[fche at redhat dot com]

------- Additional Comments From fche at redhat dot com  2010-04-08 19:06 -------
committed

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


http://sourceware.org/bugzilla/show_bug.cgi?id=6898

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