From 81305dc40c07419d7e8f5b439c22e6f1fa1b1445 Mon Sep 17 00:00:00 2001
From: kettenis <kettenis@openbsd.org>
Date: Fri, 12 Aug 2016 22:46:02 +0000
Subject: [PATCH] Include map entries that have an amap associated with them in
 the coredump. This fixes coredumps of processes that use relro to make part
 of their writable address space read-only.

ok guenther@
---
 sys/uvm/uvm_unix.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/uvm/uvm_unix.c b/sys/uvm/uvm_unix.c
index 3d6d3ad3f51..53a90ae1843 100644
--- a/sys/uvm/uvm_unix.c
+++ b/sys/uvm/uvm_unix.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: uvm_unix.c,v 1.58 2016/04/04 16:34:16 stefan Exp $	*/
+/*	$OpenBSD: uvm_unix.c,v 1.59 2016/08/12 22:46:02 kettenis Exp $	*/
 /*	$NetBSD: uvm_unix.c,v 1.18 2000/09/13 15:00:25 thorpej Exp $	*/
 
 /*
@@ -161,6 +161,7 @@ uvm_coredump_walkmap(struct proc *p, void *iocookie,
 		}
 
 		if (!(entry->protection & PROT_WRITE) &&
+		    entry->aref.ar_amap == NULL &&
 		    entry->start != p->p_p->ps_sigcode)
 			continue;
 
-- 
2.20.1