[Bug translator/21403] New: provide something like ppfunc() that also provided the class name of the function

[Bug translator/21403] New: provide something like ppfunc() that also provided the class name of the function

[dsmith at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=21403

            Bug ID: 21403
           Summary: provide something like ppfunc() that also provided the
                    class name of the function
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: translator
          Assignee: systemtap at sourceware dot org
          Reporter: dsmith at redhat dot com
  Target Milestone: ---

It would be nice if there was a way for a function to not just return the
function name the current probe point, but also the class name (assuming we're
in a C++ class).

The problem here is that the pp() information (which is what ppfunc() parses)
has the class name, but in a mangled format. We'd have to add a C++ demangler
for this to work properly.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[Bug translator/21403] provide something like ppfunc() that also provided the class name of the function

[dsmith at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=21403

--- Comment #1 from David Smith <dsmith at redhat dot com> ---
(In reply to David Smith from comment #0)
> It would be nice if there was a way for a function to not just return the
> function name the current probe point, but also the class name (assuming
> we're in a C++ class).
> 
> The problem here is that the pp() information (which is what ppfunc()
> parses) has the class name, but in a mangled format. We'd have to add a C++
> demangler for this to work properly.

Just to be clear here, I'm not suggesting we put a C++ demangler in the kernel
modules. I'm suggesting that we add enough code to the translator to put the
unmangled C++ class/function name ("CLASS::FUNCTION") as part of the probe
point name field the translator emits. Then a ppfunc() variant could extract
CLASS::FUNCTION from the full probe name field.

(Note that we'd still have mangled C++ names in backtraces that would need to
be passed through c++filt to get demangled.)

-- 
You are receiving this mail because:
You are the assignee for the bug.

[Bug translator/21403] provide something like ppfunc() that also provided the class name of the function

[fche at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=21403

Frank Ch. Eigler <fche at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |fche at redhat dot com
         Resolution|---                         |DUPLICATE

--- Comment #2 from Frank Ch. Eigler <fche at redhat dot com> ---
Closely related.

*** This bug has been marked as a duplicate of bug 14832 ***

-- 
You are receiving this mail because:
You are the assignee for the bug.