X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fmep-tdep.c;h=dd5a4a541b3127a5e261d10905332bca181a638a;hb=05d1431c1e0a4ecf30462109f5fb9876d78b7b4a;hp=b8759bc1af44766a932e7d1a53ee8cedcf4575da;hpb=5548b4ce8ccff9f4a198fdfbcc47a83baa9ed876;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/mep-tdep.c b/gdb/mep-tdep.c
index b8759bc1af..dd5a4a541b 100644
--- a/gdb/mep-tdep.c
+++ b/gdb/mep-tdep.c
@@ -1133,12 +1133,13 @@ mep_write_pc (struct regcache *regcache, CORE_ADDR pc)
 }
 
 
-static void
+static enum register_status
 mep_pseudo_cr32_read (struct gdbarch *gdbarch,
                       struct regcache *regcache,
                       int cookednum,
                       void *buf)
 {
+  enum register_status status;
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   /* Read the raw register into a 64-bit buffer, and then return the
      appropriate end of that buffer.  */
@@ -1147,24 +1148,28 @@ mep_pseudo_cr32_read (struct gdbarch *gdbarch,
 
   gdb_assert (TYPE_LENGTH (register_type (gdbarch, rawnum)) == sizeof (buf64));
   gdb_assert (TYPE_LENGTH (register_type (gdbarch, cookednum)) == 4);
-  regcache_raw_read (regcache, rawnum, buf64);
-  /* Slow, but legible.  */
-  store_unsigned_integer (buf, 4, byte_order,
-			  extract_unsigned_integer (buf64, 8, byte_order));
+  status = regcache_raw_read (regcache, rawnum, buf64);
+  if (status == REG_VALID)
+    {
+      /* Slow, but legible.  */
+      store_unsigned_integer (buf, 4, byte_order,
+			      extract_unsigned_integer (buf64, 8, byte_order));
+    }
+  return status;
 }
 
 
-static void
+static enum register_status
 mep_pseudo_cr64_read (struct gdbarch *gdbarch,
                       struct regcache *regcache,
                       int cookednum,
                       void *buf)
 {
-  regcache_raw_read (regcache, mep_pseudo_to_raw[cookednum], buf);
+  return regcache_raw_read (regcache, mep_pseudo_to_raw[cookednum], buf);
 }
 
 
-static void
+static enum register_status
 mep_pseudo_register_read (struct gdbarch *gdbarch,
                           struct regcache *regcache,
                           int cookednum,
@@ -1172,13 +1177,13 @@ mep_pseudo_register_read (struct gdbarch *gdbarch,
 {
   if (IS_CSR_REGNUM (cookednum)
       || IS_CCR_REGNUM (cookednum))
-    regcache_raw_read (regcache, mep_pseudo_to_raw[cookednum], buf);
+    return regcache_raw_read (regcache, mep_pseudo_to_raw[cookednum], buf);
   else if (IS_CR32_REGNUM (cookednum)
            || IS_FP_CR32_REGNUM (cookednum))
-    mep_pseudo_cr32_read (gdbarch, regcache, cookednum, buf);
+    return mep_pseudo_cr32_read (gdbarch, regcache, cookednum, buf);
   else if (IS_CR64_REGNUM (cookednum)
            || IS_FP_CR64_REGNUM (cookednum))
-    mep_pseudo_cr64_read (gdbarch, regcache, cookednum, buf);
+    return mep_pseudo_cr64_read (gdbarch, regcache, cookednum, buf);
   else
     gdb_assert_not_reached ("unexpected pseudo register");
 }