Tuesday, August 21, 2018
Not anyone should be allowed to run a debugger
I'm working on “Project: America-On-Line-Instant-Messenger” (hey, don't judge me—it has nothing to to with AOL, it's more a pun on the project name than anything else). I've got a major portion of it running, but it's exhibiting some odd behavior—it runs fine on Linux, but fails rather quickly on Mac OS-X with “not enough memory.”
Problem one—I'm used to using
but Mac OS-X uses
I did find a type of Rosetta Stone that shows similar commands in both
so that issue is solved.
I was then able to track down the message to a source file in LPeg, but when I set a breakpoint on the line in question, it never got triggered. Puzzling, but I was not able to solve the issue by the time I had to leave work.
So now I'm home and I have an idea to scan more than just the
It's a simple matter to log into my Mac workstation at work to see if that's the issue.
I start looking,
I find the message in two more locations,
hidden behind a
#define in a header file.
I narrow it down to just one location
(the other location pre-loading the string into the Lua VM).
lldb commands are bit more verbose than those of
no matter what I do,
all I get is:
[spc]XXXXXXXXXXXXXXXXXXXXXXXXX>lldb XXXXXXXXX (lldb) target create "XXXXXXXXX" Current executable set to 'XXXXXXXXX' (x86_64). (lldb) process launch -- config.lua error: process exited with status -1 (lost connection) (lldb)
Nothing I do works.
Then I remember—when I first ran
lldb at the office,
this modal dialog box popped up asking for my password in order to debug a program I wrote,
running under my account.
My initial reaction is,
Smooth going, Apple!
Way to protect me from myself!
But then I realize this is probably to prevent rogue programs trying to attach to running programs to do nefarious things without my knowledge.
It's bad enough I have to jump through hoops to get the computer to run my own written programs. Now this?
It really does seem at times as if the general purpose computer is a dinosaur looking up at the sky, wondering, “What is that?”