cooker: Initial import of new implementation

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

1 files changed, 44 insertions, 0 deletions

diff --git a/cooker/gluten.c b/cooker/gluten.c
new file mode 100644
index 0000000..1116e6b
--- /dev/null
+++ b/cooker/gluten.c
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+/* seitan - Syscall Expressive Interpreter, Transformer and Notifier
+ *
+ * cooker/gluten.c - gluten (bytecode) file and layout functions
+ *
+ * Copyright 2023 Red Hat GmbH
+ * Author: Stefano Brivio <sbrivio@redhat.com>
+ */
+
+#include "cooker.h"
+#include "gluten.h"
+#include "util.h"
+
+#define GLUTEN_INST_SIZE		BUFSIZ
+#define GLUTEN_DATA_SIZE		BUFSIZ
+
+static char gluten[GLUTEN_INST_SIZE + GLUTEN_DATA_SIZE];
+
+static size_t gluten_arg_storage[ARG_TYPE_COUNT] = {
+	[ARG_INT]	= sizeof(int),
+	[ARG_INTMASK]	= sizeof(int),
+};
+
+int gluten_alloc(struct gluten_ctx *g, size_t size)
+{
+	debug("   allocating %lu at offset %i", size, g->sp);
+	if ((g->sp += size) >= GLUTEN_DATA_SIZE)
+		die("Temporary data size exceeded");
+
+	return g->sp - size;
+}
+
+int gluten_alloc_type(struct gluten_ctx *g, enum arg_type type)
+{
+	return gluten_alloc(g, gluten_arg_storage[type]);
+}
+
+int gluten_init(struct gluten_ctx *g)
+{
+	g->gluten = gluten;
+
+	return 0;
+}