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-rwxr-xr-xemscripten.py14
1 files changed, 14 insertions, 0 deletions
diff --git a/emscripten.py b/emscripten.py
index b048733b..69e2d8cb 100755
--- a/emscripten.py
+++ b/emscripten.py
@@ -1,5 +1,19 @@
#!/usr/bin/python
+'''
+Run with -h to see usage options.
+
+Notes:
+
+ * Emscripten expects the .ll input to be formatted and annotated the way
+
+ llvm-dis -show-annotations
+
+ does. So if you get .ll from something else, you should run it through
+ llvm-as (to generate LLVM bitcode) and then llvm-dis -show-annotations
+ (to get properly formatted and annotated .ll).
+'''
+
import json
import optparse
import os