Comment by publicdebates

2 days ago

Can you set arbitrary memory allocated by malloc (e.g. HeapAlloc in Windows) to executable, via VirtualProtect or something else? If so, that's news to me. I thought it had to be memory allocated by VirtualAlloc only.

That said, I'm not sure that solution beats out this one. I'm using a linked list on top of an arena allocator in practice, which means allocations happen once every 0x10000 bytes. (A single C closure of mine takes up exactly 16 bytes, which includes the pointer to the next linked list node. I'm very happy with how it's designed.)

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shakna  1 day ago

Lua lets you set the allocator, so you don't have to manage the lifetime.

    void lua_setallocf (lua_State *L, lua_Alloc f, void *ud);