gdb_server: added and improved several debug prints

[fw/openocd] / src / server / gdb_server.c

diff --git a/src/server/gdb_server.c b/src/server/gdb_server.c
index a16b4ccbe901a4c5a0644baa566d41d906360fd1..0d2d1ae2c307eb18ec3321e59c18b31b65d70e75 100644 (file)
--- a/src/server/gdb_server.c
+++ b/src/server/gdb_server.c
@@ -227,6 +227,7 @@ static int gdb_get_char_inner(struct connection *connection, int *next_char)
                if (gdb_con->buf_cnt > 0)
                        break;
                if (gdb_con->buf_cnt == 0) {
+                       LOG_DEBUG("GDB connection closed by the remote client");
                        gdb_con->closed = true;
                        return ERROR_SERVER_REMOTE_CLOSED;
                }
@@ -348,11 +349,15 @@ static int gdb_putback_char(struct connection *connection, int last_char)
 static int gdb_write(struct connection *connection, void *data, int len)
 {
        struct gdb_connection *gdb_con = connection->priv;
-       if (gdb_con->closed)
+       if (gdb_con->closed) {
+               LOG_DEBUG("GDB socket marked as closed, cannot write to it.");
                return ERROR_SERVER_REMOTE_CLOSED;
+       }
 
        if (connection_write(connection, data, len) == len)
                return ERROR_OK;
+
+       LOG_WARNING("Error writing to GDB socket. Dropping the connection.");
        gdb_con->closed = true;
        return ERROR_SERVER_REMOTE_CLOSED;
 }
@@ -1351,7 +1356,7 @@ static int gdb_get_register_packet(struct connection *connection,
                return gdb_error(connection, retval);
 
        if (reg_list_size <= reg_num) {
-               LOG_ERROR("gdb requested a non-existing register");
+               LOG_ERROR("gdb requested a non-existing register (reg_num=%d)", reg_num);
                return ERROR_SERVER_REMOTE_CLOSED;
        }
 
@@ -1413,7 +1418,7 @@ static int gdb_set_register_packet(struct connection *connection,
        }
 
        if (reg_list_size <= reg_num) {
-               LOG_ERROR("gdb requested a non-existing register");
+               LOG_ERROR("gdb requested a non-existing register (reg_num=%d)", reg_num);
                free(bin_buf);
                free(reg_list);
                return ERROR_SERVER_REMOTE_CLOSED;