[Bug translator/18191] DWARF-based sizeof(), array_size(), typeof() operators

["stephane.chazelas+sourceware at gmail dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=18191

Stephane Chazelas <stephane.chazelas+sourceware at gmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |stephane.chazelas+sourcewar
                   |                            |e at gmail dot com

--- Comment #1 from Stephane Chazelas <stephane.chazelas+sourceware at gmail dot com> ---
[Thanks David]

I don't know about the other ones, but a DWARF-based sizeof() (at least for
kernel symbols) should just be a matter of:

function sizeof:long (addr:long) %{ /* pure */ /* pragma:symbols */
  STAP_RETVALUE = -1;
  _stp_kallsyms_lookup(STAP_ARG_addr, (unsigned long*)&(STAP_RETVALUE), NULL,
NULL, NULL);
%}

See
http://stackoverflow.com/questions/29034267/get-size-of-target-array-in-systemtap
for where the request is coming from.

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