X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=sim%2Fbfin%2Fdv-bfin_ctimer.c;h=dd599ff00986b3a86c83ce4d3cb1a8296ca314e5;hb=3af96c0d99dedab49d2b82b730c74c27ce99bba4;hp=aeb11d5282e54637e016e9ae3df53db2a27acfb6;hpb=ecd75fc8eed3bde86036141228074a20e55dcfc9;p=deliverable%2Fbinutils-gdb.git

diff --git a/sim/bfin/dv-bfin_ctimer.c b/sim/bfin/dv-bfin_ctimer.c
index aeb11d5282..dd599ff009 100644
--- a/sim/bfin/dv-bfin_ctimer.c
+++ b/sim/bfin/dv-bfin_ctimer.c
@@ -1,6 +1,6 @@
 /* Blackfin Core Timer model.
 
-   Copyright (C) 2010-2014 Free Software Foundation, Inc.
+   Copyright (C) 2010-2020 Free Software Foundation, Inc.
    Contributed by Analog Devices, Inc.
 
    This file is part of simulators.
@@ -127,6 +127,10 @@ bfin_ctimer_io_write_buffer (struct hw *me, const void *source,
   bu32 value;
   bu32 *valuep;
 
+  /* Invalid access mode is higher priority than missing register.  */
+  if (!dv_bfin_mmr_require_32 (me, addr, nr_bytes, true))
+    return 0;
+
   value = dv_load_4 (source);
   mmr_off = addr - ctimer->base;
   valuep = (void *)((unsigned long)ctimer + mmr_base() + mmr_off);
@@ -192,6 +196,10 @@ bfin_ctimer_io_read_buffer (struct hw *me, void *dest,
   bu32 mmr_off;
   bu32 *valuep;
 
+  /* Invalid access mode is higher priority than missing register.  */
+  if (!dv_bfin_mmr_require_32 (me, addr, nr_bytes, false))
+    return 0;
+
   mmr_off = addr - ctimer->base;
   valuep = (void *)((unsigned long)ctimer + mmr_base() + mmr_off);