can gtags be enhanced to find where a symbol is being modified?

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I have been a long time gtags/global/ggtags.el use and love it.  When I use
ggtags.el to find all the locations where a particular symbol is
referenced, I wish it were possible to ask to be shown all the places where
the symbol is being "modified" (written to.)


Ideally, I wish either GRTAGS (or elsewhere) the following entries can be
generated:

Symbol   Read/Write   function file_name  line_number


we can then, with some simple arg flag (^u for example?) only search for
symbol where it is being modified, possibly restricting it to just the
current function an/or current file.

How hard would this be to do? I am willing to do some of the work if
guided. Also, when I use


gtags --sqlite3, the GRTAGS file  seems essentially empty. (I have built
gtags with --with-sqlilte).

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<div dir=3D"auto"><div class=3D"gmail_quote" dir=3D"auto"><div dir=3D"ltr" =
class=3D"gmail_attr"><br></div>I have been a long time gtags/global/ggtags.=
el use and love it.=C2=A0 When I use ggtags.el to find all the locations wh=
ere a particular symbol is referenced, I wish it were possible to ask to be=
 shown all the places where the symbol is being &quot;modified&quot; (writt=
en to.)<br>
<br>
<br>
Ideally, I wish either GRTAGS (or elsewhere) the following entries can be g=
enerated:<br>
<br>
Symbol=C2=A0 =C2=A0Read/Write=C2=A0 =C2=A0function file_name=C2=A0 line_num=
ber<br>
<br>
<br>
we can then, with some simple arg flag (^u for example?) only search for sy=
mbol where it is being modified, possibly restricting it to just the curren=
t function an/or current file.<br><br>
How hard would this be to do? I am willing to do some of the work if guided=
. Also, when I use<br>
<br>
<br>
gtags --sqlite3, the GRTAGS file=C2=A0 seems essentially empty. (I have bui=
lt gtags with --with-sqlilte).<br>
<br>
<br>
<br>
<br>
</div></div>

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