Making progress with undefined_syms

tools/python/check_undefined_syms.py

@@ -0,0 +1,37 @@
+import subprocess
+import sys
+
+syms = None
+
+def main():
+    load_syms()
+    index = 0
+    while index < len(syms):
+        index = test_index(index)
+    print('Done!')
+
+def load_syms():
+    global syms
+    with open('undefined_syms.txt', 'r') as inFile:
+        syms = inFile.read().split('\n')
+
+def save_syms():
+    with open('undefined_syms.txt', 'w') as outFile:
+        outFile.write('\n'.join(syms))
+
+def test_index(index):
+    val = syms.pop(index)
+    save_syms()
+    command = subprocess.run(['make', 'clean'], capture_output=True)
+    command = subprocess.run(['make', '-j12'], capture_output=True)
+    out = str(command.stdout)[-5:]
+    if out.startswith('OK'):
+        print(val + ' is NOT needed! Removing!')
+        return index
+    else:
+        print(val + ' is needed! Keeping!')
+        syms.insert(index, val)
+        save_syms()
+        return index + 1
+    
+main()