Lorenzo Allegrucci <lenstra@tiscalinet.it> writes:
> Is there a simple and natural way to lock memory of a process
> from another process?
> I mean, POSIX1.b standard mlockall() does not provide a pid selection.
> You can only use it from inside the process you want to lock memory.
> Wouldn't be useful a mlockall(int flags, int pid) ?
You can do it very hackish (I just did it for a different purpose).
PTRACE_ATTACH the process and write a small trampoline that executes the system
call onto the systems stack. Then write the EIP of the trampoline using
PTRACE_SETREGS and trace for the end using PTRACE_SYSCALL. Afterwards restore
old stack pointer and EIP.
Very hackish but works,
-Andi
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This archive was generated by hypermail 2b29 : Sat May 20 2000 - 05:55:43 EDT