Re: [Haskell-cafe] mallocForeignPtrArray with check against buffer overflows

Am 26.04.2018 um 08:50 schrieb Henning Thielemann:

I like to test whether some low-level routines overwrite non-allocated memory area. On the Amiga there was the program Mungwall that surrounded memory blocks with some byte patterns at allocation and checked the integrity of those patterns at deallocation.

Today, it's called a "canary value". Most C compilers have an option to activate this mode for all allocations. I don't know whether GHC's native backend has such an option, but the LLVM backend should. Regards, Jo