init commit: for study linux application programming
sys:remove unused hello file
add semaphore code
add mutex
kernel: add logs segment
kernel:add printf similar function
Add useful code for application ported from kernel
Add consumer test code
add fork code
download: add flash instruction
Add slab magic number
add list magic number
kernel:log: add hexprint
kernel:log: add device path print
kernel:log: add print cpu id
bookmarks:add bookmarks
kernel: Add cpu info file
kernel: add time info for loging
sys: add hex to int function
kernel:add hex print