Re: stack -> PROT_EXEC/why?

[kkonaka@mac.com]

> It is sometimes necessary to execute dynamically generated code which
> is placed on the stack. The most common cases are in handling signals,
> in a technique called a "trampoline" (this is mentioned in the gcc
> Info file), and some emulators (e.g. Executor, the Mac emulator).

thank you very much - this helps me a lot.

> Yes. There is a patch available to change this, but in the standard
> kernel, the primary stack is executable.

I'll try {locate/}take a look :)

> It isn't portable, but you can get this information from
> /proc/<pid>/maps.

tested with my mini-test program - serves the purpose fine :)

thanks again!
kenji