1 files changed, 33 insertions, 0 deletions
diff --git a/tool/mk_builtin_binary.rb b/tool/mk_builtin_binary.rb
new file mode 100644
index 0000000000..a5c962d5c1
--- /dev/null
+++ b/tool/mk_builtin_binary.rb
@@ -0,0 +1,33 @@
+#
+# make builtin_binary.inc file.
+#
+
+def dump_bin iseq
+  bin = iseq.to_binary
+  bin.each_byte.with_index{|b, index|
+    print "\n  " if (index%20) == 0
+    print "0x#{'%02x' % b.ord}, "
+  }
+end
+
+ary = []
+RubyVM::each_builtin{|feature, iseq|
+  ary << [feature, iseq]
+}
+
+$stdout = open('builtin_binary.inc', 'wb')
+
+ary.each{|feature, iseq|
+  puts "static const unsigned char #{feature}_bin[] = {"
+    dump_bin(iseq)
+  puts "};"
+}
+
+puts "static const struct builtin_binary builtin_binary[] = {"
+ary.each{|feature, iseq|
+  puts "  {#{feature.dump}, #{feature}_bin, sizeof(#{feature}_bin)},"
+}
+puts "  {NULL}," # dummy sentry
+puts "};"
+
+puts "#define BUILTIN_BINARY_SIZE #{ary.size}"