Hash even backend-specific directives, unify null functions

Hash all directives, even the ones that are backend-specific,
and instead pass the backend an already-parsed directive number.

Furthermore, unify null functions across various backends.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/output/nullout.c b/output/nullout.c
new file mode 100644
index 0000000..228fa16
--- /dev/null
+++ b/output/nullout.c
@@ -0,0 +1,51 @@
+/* ----------------------------------------------------------------------- *
+ *   
+ *   Copyright 1996-2009 The NASM Authors - All Rights Reserved
+ *   See the file AUTHORS included with the NASM distribution for
+ *   the specific copyright holders.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following
+ *   conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above
+ *     copyright notice, this list of conditions and the following
+ *     disclaimer in the documentation and/or other materials provided
+ *     with the distribution.
+ *     
+ *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ *     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ *     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ *     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ *     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ *     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ----------------------------------------------------------------------- */
+
+#include "nasm.h"
+#include "nasmlib.h"
+#include "output/outlib.h"
+
+int null_setinfo(enum geninfo type, char **string)
+{
+    (void)type;
+    (void)string;
+    return 0;
+}
+
+int null_directive(enum directives directive, char *value, int pass)
+{
+    (void)directive;
+    (void)value;
+    (void)pass;
+    return 0;
+}