Mike Frysinger <vap...@gentoo.org> wrote: > it'd be cool if the global /proc/maps could display something like > [stack/<pid>], but i can't quite divine how to get a mm_struct out > of a vm_region without having to walk the entire process list.
Tricky. vm_regions can be shared between multiple mm_structs, although in the case of the stack, they're probably not. Furthermore, there's no interface to mmap() to say the region you're allocating belongs to a particular PID (and with userspace created threads, you have to create the stack _before_ calling clone()). That said, you could add a 'creator pid' to the vm_region. This could be set firstly by mmap() to current->pid, and then overridden by clone() for the stack VMA. It would be approximate, but probably a good approximation. You probably don't actually need a back pointer, just an integer PID. David _______________________________________________ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
