From: Anthony G. Basile <blueness@gentoo.org>

PAX_EMUTRAMP is needed for libffi to avoid RWX mmap-ings using PaX emulation of trampolines.
We default PAX_EMUTRAMP='y' since almost all hardened users will want this.

See bug:
 http://bugs.gentoo.org/show_bug.cgi?id=329499
 http://bugs.gentoo.org/show_bug.cgi?id=457194

diff -Naur linux-3.9.2-hardened.orig/security/Kconfig linux-3.9.2-hardened/security/Kconfig
--- linux-3.9.2-hardened.orig/security/Kconfig	2013-05-18 08:53:41.000000000 -0400
+++ linux-3.9.2-hardened/security/Kconfig	2013-05-18 09:17:57.000000000 -0400
@@ -428,7 +428,7 @@
 
 config PAX_EMUTRAMP
 	bool "Emulate trampolines" if (PAX_PAGEEXEC || PAX_SEGMEXEC) && (PARISC || X86)
-	default y if PARISC
+	default y
 	help
 	  There are some programs and libraries that for one reason or
 	  another attempt to execute special small code snippets from