[src/trunk]: src/sys/arch/amd64/conf Add GENERIC_KASLR, only toolchain parts ...

[maxv <maxv%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/d4b10bbaa624
branches:  trunk
changeset: 356638:d4b10bbaa624
user:      maxv <maxv%NetBSD.org@localhost>
date:      Sat Oct 07 10:16:47 2017 +0000

description:
Add GENERIC_KASLR, only toolchain parts for now.

diffstat:

 sys/arch/amd64/conf/GENERIC_KASLR  |  5 +++++
 sys/arch/amd64/conf/Makefile.amd64 |  6 +++++-
 2 files changed, 10 insertions(+), 1 deletions(-)

diffs (30 lines):

diff -r 9b720ea400b0 -r d4b10bbaa624 sys/arch/amd64/conf/GENERIC_KASLR
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/amd64/conf/GENERIC_KASLR Sat Oct 07 10:16:47 2017 +0000
@@ -0,0 +1,5 @@
+# $NetBSD: GENERIC_KASLR,v 1.1 2017/10/07 10:16:47 maxv Exp $
+
+include "arch/amd64/conf/GENERIC"
+
+makeoptions    KASLR=1         # Kernel ASLR
diff -r 9b720ea400b0 -r d4b10bbaa624 sys/arch/amd64/conf/Makefile.amd64
--- a/sys/arch/amd64/conf/Makefile.amd64        Sat Oct 07 00:06:11 2017 +0000
+++ b/sys/arch/amd64/conf/Makefile.amd64        Sat Oct 07 10:16:47 2017 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile.amd64,v 1.58 2017/08/09 19:11:13 maxv Exp $
+#      $NetBSD: Makefile.amd64,v 1.59 2017/10/07 10:16:47 maxv Exp $
 
 # Makefile for NetBSD
 #
@@ -61,7 +61,11 @@
 ## (5) link settings
 ##
 TEXTADDR?=     0xffffffff80200000
+.if defined(KASLR)
+EXTRA_LINKFLAGS=       -z max-page-size=0x200000 -r -d
+.else
 EXTRA_LINKFLAGS=       -z max-page-size=0x200000
+.endif
 LINKFLAGS_NORMAL=      -X
 KERNLDSCRIPT?= ${AMD64}/conf/kern.ldscript