add mlock2 syscall number from linux v4.4
-rw-r--r-- 107 .gitignore
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-rw-r--r-- 7220 Makefile
-rw-r--r-- 1028 README
-rw-r--r-- 7 VERSION
-rw-r--r-- 59736 WHATSNEW
drwxr-xr-x - arch
-rwxr-xr-x 21456 configure
drwxr-xr-x - crt
drwxr-xr-x - dist
drwxr-xr-x - include
drwxr-xr-x - ldso
drwxr-xr-x - src
drwxr-xr-x - tools