SecBSD's official ports repository

devel/clang-tools-extra/patches/patch-lib_Target_X86_X86_h

@@ -0,0 +1,20 @@
+Add a clang pass that identifies potential ROP gadgets and replaces ROP
+friendly instructions with safe alternatives. This initial commit fixes
+3 instruction forms that will lower to include a c3 (return) byte.
+Additional problematic instructions can be fixed incrementally using
+this framework.
+
+Index: lib/Target/X86/X86.h
+--- lib/Target/X86/X86.h.orig
++++ lib/Target/X86/X86.h
+@@ -122,6 +122,10 @@ FunctionPass *createX86FixupBWInsts();
+ /// to another, when profitable.
+ FunctionPass *createX86DomainReassignmentPass();
+ 
++/// Return a Machine Function pass that attempts to replace
++/// ROP friendly instructions with alternatives.
++FunctionPass *createX86FixupGadgetsPass();
++
+ /// This pass replaces EVEX encoded of AVX-512 instructiosn by VEX
+ /// encoding when possible in order to reduce code size.
+ FunctionPass *createX86EvexToVexInsts();