Adds platform specific defines.

Signed-off-by: Noufal Ibrahim <noufal@nibrahim.net.in>
Adds simple test for process (interim).

Signed-off-by: Noufal Ibrahim <noufal@nibrahim.net.in>
Added grep_awk.

Signed-off-by: Noufal Ibrahim <noufal@nibrahim.net.in>
Implements get_ppid.

Signed-off-by: Noufal Ibrahim <noufal@nibrahim.net.in>