Mike Coleman wrote:
> is a downside to doing this. If, for example, timeofday is available in a raw
> form on one of these data pages, and user-space code can read that page at
> will (without going to the kernel), you lose your ability to "lie" to
> user-space about the time.
if you're saying absolutely everything must go through ptrace, even if
it happens to have userspace-only implementation -- yes, obviously.
preventing a rogue process from accessing the info directly might be a bit
harder, w/o giving up the main benefit -- speed. There certainly seems to
be a market for a runtime (global) on/off switch at least.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to email@example.com
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Wed Mar 15 2000 - 21:00:13 EST