On Apr 26, 10:27 am, Chris Stratton <[email protected]> wrote: > On Thursday, April 26, 2012 12:50:59 AM UTC-4, MX wrote: > > > The operations of reading cache data can 100% be sensed in the > > Kernel layer? > > Your line of questioning doesn't really make any sense. > > Some operations ordinarily involve kernel syscalls, or trigger conditions > which the kernel must handle. Others do not. > > However, the kernel can (if it "wishes" to) force the program to execute > just one instruction at a time, with the kernel watching. > > Even something that involves the kernel may not be "sensed" unless some > aspect of the kernel has been told to consider the fact that it happens > noteworthy. > > So the real question is if the kernel has been primed to be looking for > some type of operation or not. > > For various aspects of that, the answer is "usually", "depening on runtime > options", "depending on compile time options" or "no, but you could modify > it to" Thanks.
>From your statement, it seems the kernel has the potential ability to watch all the operations that it wants to. Well, Must the upper layer operations be involved with Kernel ? Can they be done without the involvement of Kernel in Android? -- You received this message because you are subscribed to the Google Groups "Android Security Discussions" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/android-security-discuss?hl=en.
