Changeset 126613 in webkit for trunk/Source/JavaScriptCore/DerivedSources.make

Timestamp:

Aug 24, 2012, 12:37:50 PM (13 years ago)

Author:

[email protected]

Message:

Autogenerate Opcode definitions
​https://bugs.webkit.org/show_bug.cgi?id=94840

Reviewed by Gavin Barraclough.

Start the process of autogenerating the code emission for the bytecode.
We'll just start with automatic generation of the list of Opcodes as that
requires the actual definition of the opcodes, and the logic for parsing
them.

Due to some rather annoying dependency cycles, this initial version has
the OpcodeDefinitions.h file checked into the tree, although with some
work I hope to be able to fix that.

• DerivedSources.make:
• JavaScriptCore.xcodeproj/project.pbxproj:
• bytecode/Opcode.h: Include OpcodeDefinitions.h as our definitive source of info about the opcodes.
• bytecode/OpcodeDefinitions.h: Added. Autogenerated file
• bytecode/opcodes: Added. The new opcode definition file
• opcode_definition_generator.py: Added.

(generateOpcodeDefinition):
(generate):

Module that generates the content for OpcodeDefinitions.h

• opcode_generator.py: Added.

(printUsage):
(main):

Driver script

• opcode_parser.py: Added. Simple parser for the opcode definitions.

File:

• trunk/Source/JavaScriptCore/DerivedSources.make (modified) (1 diff)

trunk/Source/JavaScriptCore/DerivedSources.make

@@ -81 +81 @@
         python $^ > $@
 
+# Don't autogenerate these yet, as there are some dependency problems
+# interacting with the LLIntOffsetsExtractor
+# opcode_generator.py: opcode_definition_generator.py opcode_parser.py
+#
+# OpcodeDefinitions.h: opcode_generator.py | bytecode/opcodes
+#       python $< -i $| -m definition -o $@
+
 # udis86 instruction tables