Disable WITH_RETPOLINE on stable/12.

It is known that clang 7 generates broken ifunc calls when retpoline is enabled. Since libc uses ifuncs, mark WITH_RETPOLINE as always broken and disabled. To be removed after clang 8 MFC. This is a direct commit to the branch. Reported by: many Tested by: Nikola Mihaylov <[email protected]> Reviewed by: emaste Sponsored by: The FreeBSD Foundation
HardenedBSD · Mar 7, 2019 · 4e79588 · 4e79588
1 parent 531e908
commit 4e79588
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/share/mk/src.opts.mk b/share/mk/src.opts.mk
@@ -365,6 +365,9 @@ BROKEN_OPTIONS+=LOADER_UBOOT
 BROKEN_OPTIONS+=LOADER_GELI LOADER_LUA
 .endif
 
+# clang 7.0
+BROKEN_OPTIONS+=RETPOLINE
+
 .if ${__T:Mmips64*}
 # profiling won't work on MIPS64 because there is only assembly for o32
 BROKEN_OPTIONS+=PROFILE