Whether OpenWrt support BIND_NOW、NX、PIC、PIE、RELRO GOT、SP etc

Installing and Using OpenWrt
1

Whether openwrt support BIND_NOW、NX、PIC、PIE、 RELRO GOT、SP etc， or how to enable the options

Thanks

2

The source is at your fingertips, use it, if you're looking for this level of detail.