initial libdietc

2 files changed, 33 insertions, 0 deletions

diff --git a/python/examples/test_files/zero_init.c b/python/examples/test_files/zero_init.c
new file mode 100644
index 0000000..5db109a
--- /dev/null
+++ b/python/examples/test_files/zero_init.c
@@ -0,0 +1,20 @@
+#include <stdio.h>
+
+int set_xyz() {
+    int xyz = 1;
+    return xyz;
+}
+
+int foo() {
+    int xyz;
+    return xyz;
+}
+
+int main() {
+    printf("Foo return value: %d\n", foo());
+    set_xyz();
+    printf("Foo return value: %d\n", foo());
+    set_xyz();
+    printf("Foo return value: %d\n", foo());
+    return 0;
+}
diff --git a/python/examples/zero_init b/python/examples/zero_init
new file mode 100755
index 0000000..e2ab92e
--- /dev/null
+++ b/python/examples/zero_init
@@ -0,0 +1,13 @@
+#!/bin/python3
+import os
+import sys
+sys.path.append(os.path.dirname(os.path.dirname(os.path.realpath(__file__))))
+import dietc
+
+prog = dietc.Program(open(sys.argv[1], "rb").read())
+for function in prog.functions:
+    fn_locals = function.locals()
+    start_i = function.code_start()
+    for local in fn_locals:
+        function.insert(start_i, f"\tMEMZERO ( {local} ) ;")
+prog.print()