System Sleuthing - Using ptrace to Print Backtraces

I recently developed a Perl module that allows you to print backtraces when your program makes certain system calls; see my blog for the full story!

Oh My Glob

Hello fellow Perl developers,

I wrote up a blog entry about typeglobs on my personal blog: what they are, and what they are used for. If you've never heard of typeglobs, or you feel you could stand to pick up a trick or two, check out the post:

Oh My Glob

Perl 5 Internals - Part Four

installment will cover something a bit different: the optree. Those of you who are familiar with compiler concepts are no doubt familiar with the notion of an abstract syntax tree (known as an AST for short). The optree is perl's take on the AST: it's something similar to, but not entirely the same as, an AST. Befor…

Perl 5 Internals - Part Three

This is a cross post from my blog.

In the previous post, we talked about some of the optimizations that perl performs when conducting string and array operations. This time, we'll be diving into how perl implements hashes. But first, a brief clarification…

="perl_ne…

Perl 5 Internals - Part Two

This is a cross post from my blog.

Welcome back for another exciting episode on the inner workings of the perl interpreter! Last time we covered some of the basic optimizations perl performs on SVs, as well as the consequences of those optimizations. This time, we'll be going over some of the optimizations specific to strings and arrays. I know I said we'd be covering hashes too, …