This issue is being created as a reminder to myself.

Ensure that the ASM has plenty of comments. Always assume that there will be a several month break and that I will forget everything.

It seems that label addressing is treated differently by the nasm x64 compiler. The assembly 'jmp label' when compiled to an .obj file will show 'jmp 6'. However if we use 'sub rax,label' we get 'sub rax,0x0'.

This is resolved by the linker, bit late for me though.

Problem here is that this prevents a number of position independent code tricks.

Will likely need stackframes in each function called in the asm code..

Seems to lead to alot of strange undefined behaviour. The child process must be writting over areas of the parent.

Will need to research this. Both fork and phthread make use of clone, though fork doesn't use the CLONE_VM flag. Pthreads do use the CLONE_VM flag, but they will allocate their necessary structures in safe location along with fact that locking is used to protect memory.