* d10v-tdep.c (d10v_extract_return_value): Wierd. GCC wants to return

odd sized register quantities with only half of the first register used!
* config/d10v/tm-d10v.h (USE_STRUCT_CONVENTION): Use stack when size > 8.

1 files changed, 10 insertions, 1 deletions

diff --git a/gdb/d10v-tdep.c b/gdb/d10v-tdep.c
index 6e57891..10d249b 100644
--- a/gdb/d10v-tdep.c
+++ b/gdb/d10v-tdep.c
@@ -654,8 +654,17 @@ d10v_extract_return_value (type, regbuf, valbuf)
 	  unsigned short c = extract_unsigned_integer (regbuf + REGISTER_BYTE (RET1_REGNUM), REGISTER_RAW_SIZE (RET1_REGNUM));
 	  store_unsigned_integer (valbuf, 1, c);
 	}
-      else
+      else if ((len & 1) == 0)
 	memcpy (valbuf, regbuf + REGISTER_BYTE (RET1_REGNUM), len);
+      else
+	{
+	  /* For return values of odd size, the first byte is in the
+             least significant part of the first register.  The
+             remaining bytes in remaining registers. Interestingly,
+             when such values are passed in, the last byte is in the
+             most significant byte of that same register - wierd. */
+	  memcpy (valbuf, regbuf + REGISTER_BYTE (RET1_REGNUM) + 1, len);
+	}
     }
 }