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From: Andrew Turner <andrew@FreeBSD.org>
Date: Sat, 11 Jul 2015 16:02:07 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r285389 - head/sys/arm/arm
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Author: andrew
Date: Sat Jul 11 16:02:06 2015
New Revision: 285389
URL: https://svnweb.freebsd.org/changeset/base/285389

Log:
  Always send a SIGSEGV on a map failure. Use the code to tell the reason
  for the signal.
  
  Sponsored by:	ABT Systems Ltd

Modified:
  head/sys/arm/arm/trap-v6.c

Modified: head/sys/arm/arm/trap-v6.c
==============================================================================
--- head/sys/arm/arm/trap-v6.c	Sat Jul 11 15:22:11 2015	(r285388)
+++ head/sys/arm/arm/trap-v6.c	Sat Jul 11 16:02:06 2015	(r285389)
@@ -542,8 +542,8 @@ nogo:
 		return;
 	}
 
-	ksig.sig = (rv == KERN_PROTECTION_FAILURE) ? SIGBUS : SIGSEGV;
-	ksig.code = 0;
+	ksig.sig = SIGSEGV;
+	ksig.code = (rv == KERN_PROTECTION_FAILURE) ? SEGV_ACCERR : SEGV_MAPERR;
 	ksig.addr = far;
 
 do_trapsignal: