Initial attempt at empython

Author: aidanhs

Makefile

@@ -0,0 +1,46 @@
+EMFLAGS=\
+	--pre-js js/preJs.js --post-js js/postJs.js
+
+EMEXPORTS=\
+	-s EXPORTED_FUNCTIONS="['_Py_Initialize', '_PyRun_SimpleString']"
+
+lp.js: lp.bc
+	(cd Python-2.7.8/Lib/ && python ../../mapfiles.py .) > js/postJs.js
+	cat js/postJs.js.in >> js/postJs.js
+	emcc $(EMFLAGS) $(EMEXPORTS) $< -o $@
+
+#lp.bc:
+#	TODO
+
+prep:
+	cd tcl && git apply ../hacks.patch
+	#TODO
+	#cd tcl/unix && emconfigure ./configure --disable-threads --disable-load --disable-shared
+
+#===================
+#
+#/usr/include/x86_64-linux-gnu
+#============
+
+#sudo apt-get install gcc-multilib
+#
+#CONFFLAGS=""
+#CONFFLAGS="$CONFFLAGS --without-threads --disable-shared --without-signal-module --disable-ipv6"
+#
+#./configure
+#make Parser/pgen python
+#cp Makefile ../Makefile.native
+##cp Parser/pgen ../pgen.native
+#cp python ../python.native
+#make clean
+#git clean -f -x -d
+#
+#(export CFLAGS=-m32 && export LDFLAGS=-m32 && emconfigure ./configure $CONFFLAGS)
+#git apply ../hacks.patch
+#emmake make
+##cp ../pgen.native Parser/pgen
+#cp ../python.native python
+##chmod +x Parser/pgen
+#chmod +x python
+#emmake make
+#

hacks.patch

@@ -0,0 +1,12 @@
+diff --git a/pyconfig.h.orig b/pyconfig.h
+--- a/pyconfig.h
++++ b/pyconfig.h
+@@ -269,7 +269,7 @@
+ 
+ /* Define if we can use gcc inline assembler to get and set x87 control word
+    */
+-#define HAVE_GCC_ASM_FOR_X87 1
++#undef HAVE_GCC_ASM_FOR_X87
+ 
+ /* Define if you have the getaddrinfo function. */
+ #define HAVE_GETADDRINFO 1

js/postJs.js.in

@@ -0,0 +1,21 @@
+      Module.FS = FS;
+      Module.ENV = ENV;
+      root['Module'] = Module;
+    }
+  };
+
+  root.empython();
+  // Undo pollution of window
+  delete window.Module;
+
+  // Init emscripten stuff
+  root.Module.run();
+
+  root.Initialize = root.Module.cwrap('Py_Initialize', 'number', []);
+  root.Run = root.Module.cwrap('PyRun_SimpleString', 'number', [
+      'string'  // string to eval
+  ]);
+
+  return root;
+
+})();

js/preJs.js

@@ -0,0 +1,10 @@
+this.empython = (function () {
+
+  var root = {
+    empython: function () {
+      var Module = {
+        noInitialRun: true,
+        noExitRuntime: true,
+        preRun: [],
+        postRun: []
+      };

mapfiles.py

@@ -0,0 +1,32 @@
+#!/usr/bin/env python2
+
+import os
+import sys
+
+BASEDIR = '/lib/python2.7'
+
+def main(root):
+    os.chdir(root)
+    commands = ['ENV["PYTHONHOME"] = "%s";' % (BASEDIR,)]
+    commands.append('FS.createPath("%s", "%s", true, true);' % ('/', BASEDIR[1:]))
+    for (dirpath, dirnames, filenames) in os.walk('.'):
+        jsdir = os.path.abspath(os.path.join(BASEDIR, dirpath))
+        for folder in dirnames:
+            commands.append('FS.createFolder("%s", "%s", true, true);' % (jsdir, folder))
+        for filename in filenames:
+            if not filename.endswith('.py'): continue
+            full_path = os.path.join(dirpath, filename)
+            contents = ','.join(str(ord(i)) for i in open(full_path, 'rb').read())
+            commands.append('FS.createDataFile("%s", "%s", [%s], true, true);' % (jsdir, filename, contents))
+
+    # Start out in a writeable folder.
+    commands.append('FS.createFolder(".", "sandbox", true, true);')
+    commands.append('FS.currentPath = "/sandbox";')
+
+    print '\n'.join(commands)
+
+if __name__ == '__main__':
+    if len(sys.argv) != 2:
+        print 'Usage: %s root' % sys.argv[0]
+    else:
+        main('.')