Re: Constant Stack Canaries

Say, if you load a single copy of a binary at 0x24680000.
Process A and B can't use the same mapping in the same address space,
with PC-rel globals, as then they would each see the other's globals.

>
Say I load a copy of the binary text at 0x24680000 and its data at
0x35900000 for a distance of 0x11280000 into the address space of
a process.
>
Then I load another copy at 0x44680000 and its data at 55900000
into the address space of a different process.

But then if thread A (whose state is stored at 0x35900000) sends to
thread B (whose state is at 55900000) a closure whose code points
somewhere inside 0x24680000, it will end up using the state of thread
A instead of the state of the current thread.


        Stefan