gdb-server: fix error reporting bugs

GDB and OpenOCD has two different error number
spaces and no mapping exists between them.

If a specific error number is to be reported
to GDB then this has to be done at the calling
site, rather than as a generic routine that
tries to map "retval" to GDB error number speak.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>

diff --git a/src/server/gdb_server.c b/src/server/gdb_server.c
index a84c618aff084177becbf0c85e9918e0a880c383..029bdf8131ff2f6534d7c00b9aa198e26efbce39 100644 (file)
--- a/src/server/gdb_server.c
+++ b/src/server/gdb_server.c
@@ -1219,29 +1219,14 @@ static int gdb_set_register_packet(struct connection *connection,
        return ERROR_OK;
 }
 
+/* No attempt is made to translate the "retval" to
+ * GDB speak. This has to be done at the calling
+ * site as no mapping really exists.
+ */
 static int gdb_error(struct connection *connection, int retval)
 {
-       switch (retval)
-       {
-               case ERROR_TARGET_DATA_ABORT:
-                       gdb_send_error(connection, EIO);
-                       break;
-               case ERROR_TARGET_TRANSLATION_FAULT:
-                       gdb_send_error(connection, EFAULT);
-                       break;
-               case ERROR_TARGET_UNALIGNED_ACCESS:
-                       gdb_send_error(connection, EFAULT);
-                       break;
-               case ERROR_TARGET_NOT_HALTED:
-                       gdb_send_error(connection, EFAULT);
-                       break;
-               default:
-                       /* This could be that the target reset itself. */
-                       LOG_ERROR("unexpected error %i", retval);
-                       gdb_send_error(connection, EFAULT);
-                       break;
-       }
-
+       LOG_DEBUG("Reporting %i to GDB as generic error", retval);
+       gdb_send_error(connection, EFAULT);
        return ERROR_OK;
 }
 
@@ -1719,7 +1704,7 @@ static int gdb_memory_map(struct connection *connection,
                if (retval != ERROR_OK)
                {
                        free(banks);
-                       gdb_send_error(connection, retval);
+                       gdb_error(connection, retval);
                        return retval;
                }
                banks[i] = p;
@@ -1801,7 +1786,7 @@ static int gdb_memory_map(struct connection *connection,
        xml_printf(&retval, &xml, &pos, &size, "</memory-map>\n");
 
        if (retval != ERROR_OK) {
-               gdb_send_error(connection, retval);
+               gdb_error(connection, retval);
                return retval;
        }
 
@@ -1952,7 +1937,7 @@ static int gdb_query_packet(struct connection *connection,
 
                if (retval != ERROR_OK)
                {
-                       gdb_send_error(connection, retval);
+                       gdb_error(connection, retval);
                        return retval;
                }