svn commit: r343607 - head/sys/sys

[Konstantin Belousov]

Author: kib
Date: Thu Jan 31 15:44:49 2019
New Revision: 343607
URL: https://svnweb.freebsd.org/changeset/base/343607

Log:
  Reserve a bit in the FreeBSD feature control note for marking the
  image as not compatible with ASLR.
  
  Requested by:	emaste
  Sponsored by:	The FreeBSD Foundation
  MFC after:	3 days
  Differential revision:	https://reviews.freebsd.org/D5603

Modified:
  head/sys/sys/elf_common.h

Modified: head/sys/sys/elf_common.h
==============================================================================
--- head/sys/sys/elf_common.h	Thu Jan 31 15:07:32 2019	(r343606)
+++ head/sys/sys/elf_common.h	Thu Jan 31 15:44:49 2019	(r343607)
@@ -762,6 +762,9 @@ typedef struct {
 #define	NT_FREEBSD_ARCH_TAG	3
 #define	NT_FREEBSD_FEATURE_CTL	4
 
+/* NT_FREEBSD_FEATURE_CTL desc[0] bits */
+#define	NT_FREEBSD_FCTL_ASLR_DISABLE	0x00000001
+
 /* Values for n_type.  Used in core files. */
 #define	NT_PRSTATUS	1	/* Process status. */
 #define	NT_FPREGSET	2	/* Floating point registers. */