Don’t store your structure lengths at pointer-4. Thank you.
Conversation
This Tweet was deleted by the Tweet author. Learn more
I got no work done for the rest of the day after I discovered that macro. I was just browsing kernel code and looking at a vmcore in crash as though I had stumbled upon evidence of a murder.
1
Are there any malloc implementations that are NOT cursed?
1
Well, I made github.com/GrapheneOS/har, so it's hard for me to consider it cursed. It's not a performance-oriented allocator though. If it was it would have small thread caches, free lists in slabs instead of bitmaps and wouldn't have all the sanity checks and security features.
1
1
Show replies