I'm playing with patching the perl source and am attempting to create a new super global variable for nefarious purposes. I've added the following code to one of the opcodes in pp_ctl.c:
SV* super_i;
super_i = get_sv("main::buu_test_i", TRUE);
SvIV_set(super_i, 42);
Which *seems* to work properly. Unfortunately once I compile I can't seem to access my new variable from perl code. That is, when I try to print out what I think is the variable I just set I get undef. Do I need some special magic to make it accessible from perl, or do I need a specific perl command to invoke it? (I've tried $buu_test_i, $main::buu_test_i, and so on).
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.