build: add hardened builds with PIE (ASLR) support
Introduce a configuration option to build a "hardened" OpenWrt with ASLR PIE support. Add new option PKG_ASLR_PIE to enable Address Space Layout Randomization (ASLR) by building Position Independent Executables (PIE). This new option protects against "return-to-text" attacks. Busybox need a special care, link is done with ld, not gcc, leading to unknown flags. Set BUSYBOX_DEFAULT_PIE instead and disable PKG_ASLR_PIE. If other failing packages were found, PKG_ASLR_PIE:=0 should be added to their Makefiles. Original Work by: Yongkui Han <yonhan@cisco.com> Signed-off-by: Julien Dusser <julien.dusser@free.fr>v19.07.3_mercusys_ac12_duma
parent
ca7e8627db
commit
df0bd42fde
@ -0,0 +1,2 @@
|
||||
*self_spec:
|
||||
+ %{no-pie|static|r|shared:;:-pie}
|
Loading…
Reference in New Issue