2004-10-26  Theodore A. Roth  <troth@openavr.org>

	* target.c (target_read_memory_partial): Make sure the err is set.
	(target_write_memory_partial): Ditto.

Index: target.c
===================================================================
RCS file: /cvs/src/src/gdb/target.c,v
retrieving revision 1.90
diff -u -p -p -r1.90 target.c
--- target.c	8 Oct 2004 20:29:55 -0000	1.90
+++ target.c	26 Oct 2004 17:35:14 -0000
@@ -1233,8 +1233,20 @@ int
 target_read_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err)
 {
   if (target_xfer_partial_p ())
-    return target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY, NULL,
-				buf, NULL, memaddr, len);
+    {
+      int retval = target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY,
+                                        NULL, buf, NULL, memaddr, len);
+
+      /* troth/2004-10-26: Are we certain that errno will be set properly if
+         the above call returns -1? */
+
+      if (retval == -1)
+        *err = errno;
+      else
+        *err = 0;
+
+      return retval;
+    }
   else
     return target_xfer_memory_partial (memaddr, buf, len, 0, err);
 }
@@ -1243,8 +1255,17 @@ int
 target_write_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err)
 {
   if (target_xfer_partial_p ())
-    return target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY, NULL,
-				NULL, buf, memaddr, len);
+    {
+      int retval = target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY,
+                                        NULL, NULL, buf, memaddr, len);
+
+      if (retval == -1)
+        *err = errno;
+      else
+        *err = 0;
+
+      return retval;
+    }
   else
     return target_xfer_memory_partial (memaddr, buf, len, 1, err);
 }