blob: 8300bd080fec55a186c42e572fb985efaa5d4dfb [file] [log] [blame]
#! /usr/bin/env python
# Copyright (C) 2014-2017 Apple Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# This tool processes the bytecode list to create Bytecodes.h and InitBytecodes.asm
import hashlib
import json
import optparse
import os
import re
import sys
cCopyrightMsg = """/*
* Copyright (C) 2014 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* Autogenerated from %s, do not modify.
*/
"""
asmCopyrightMsg = """# Copyright (C) 2014 Apple Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# Autogenerated from %s, do not modify.
"""
def openOrExit(path, mode):
try:
return open(path, mode)
except IOError as e:
print("I/O error opening {0}, ({1}): {2}".format(path, e.errno, e.strerror))
exit(1)
def hashFile(file):
sha1 = hashlib.sha1()
file.seek(0)
for line in file:
sha1.update(line)
file.seek(0)
return sha1.hexdigest()
def toCpp(name):
camelCase = re.sub(r'([^a-z0-9].)', lambda c: c.group(0)[1].upper(), name)
CamelCase = camelCase[:1].upper() + camelCase[1:]
return CamelCase
def writeInstructionAccessor(bytecodeHFile, typeName, name):
bytecodeHFile.write(" {0}& {1}() {{ return *reinterpret_cast<{0}*>(&m_{1}); }}\n".format(typeName, name))
bytecodeHFile.write(" const {0}& {1}() const {{ return *reinterpret_cast<const {0}*>(&m_{1}); }}\n".format(typeName, name))
def writeInstructionMember(bytecodeHFile, typeName, name):
bytecodeHFile.write(" std::aligned_storage<sizeof({0}), sizeof(Instruction)>::type m_{1};\n".format(typeName, name))
def writeStruct(bytecodeHFile, bytecode):
bytecodeHFile.write("struct {0} {{\n".format(toCpp(bytecode["name"])))
bytecodeHFile.write("public:\n")
writeInstructionAccessor(bytecodeHFile, "Opcode", "opcode")
for offset in bytecode["offsets"]:
for name, typeName in offset.iteritems():
writeInstructionAccessor(bytecodeHFile, typeName, name)
bytecodeHFile.write("\nprivate:\n")
bytecodeHFile.write(" friend class LLIntOffsetsExtractor;\n\n")
writeInstructionMember(bytecodeHFile, "Opcode", "opcode")
for offset in bytecode["offsets"]:
for name, typeName in offset.iteritems():
writeInstructionMember(bytecodeHFile, typeName, name)
bytecodeHFile.write("};\n\n")
if __name__ == "__main__":
parser = optparse.OptionParser(usage = "usage: %prog [--bytecodes_h <FILE>] [--init_bytecodes_asm <FILE>] <bytecode-json-file>")
parser.add_option("-b", "--bytecodes_h", dest = "bytecodesHFileName", help = "generate bytecodes macro .h FILE", metavar = "FILE")
parser.add_option("-s", "--bytecode_structs_h", dest = "bytecodeStructsHFileName", help = "generate bytecodes macro .h FILE", metavar = "FILE")
parser.add_option("-a", "--init_bytecodes_asm", dest = "initASMFileName", help="generate ASM bytecodes init FILE", metavar = "FILE")
(options, args) = parser.parse_args()
if len(args) != 1:
parser.error("missing <bytecode-json-file>")
bytecodeJSONFile = args[0]
bytecodeFile = openOrExit(bytecodeJSONFile, "rb")
sha1Hash = hashFile(bytecodeFile)
hFileHashString = "// SHA1Hash: {0}\n".format(sha1Hash)
asmFileHashString = "# SHA1Hash: {0}\n".format(sha1Hash)
bytecodeHFilename = options.bytecodesHFileName
bytecodeStructsHFilename = options.bytecodeStructsHFileName
initASMFileName = options.initASMFileName
if not bytecodeHFilename and not initASMFileName and not bytecodeStructsHFilename:
parser.print_help()
exit(0)
needToGenerate = False
if bytecodeHFilename:
try:
bytecodeHReadFile = open(bytecodeHFilename, "rb")
hashLine = bytecodeHReadFile.readline()
if hashLine != hFileHashString:
needToGenerate = True
except:
needToGenerate = True
else:
bytecodeHReadFile.close()
if bytecodeStructsHFilename:
try:
bytecodeStructsHReadFile = open(bytecodeStructsHFilename, "rb")
hashLine = bytecodeStructsHReadFile.readline()
if hashLine != hFileHashString:
needToGenerate = True
except:
needToGenerate = True
else:
bytecodeStructsHReadFile.close()
if initASMFileName:
try:
initBytecodesReadFile = open(initASMFileName, "rb")
hashLine = initBytecodesReadFile.readline()
if hashLine != asmFileHashString:
needToGenerate = True
except:
needToGenerate = True
else:
initBytecodesReadFile.close()
if not needToGenerate:
exit(0)
if bytecodeHFilename:
bytecodeHFile = openOrExit(bytecodeHFilename, "wb")
if bytecodeStructsHFilename:
bytecodeStructsHFile = openOrExit(bytecodeStructsHFilename, "wb")
if initASMFileName:
initBytecodesFile = openOrExit(initASMFileName, "wb")
try:
bytecodeSections = json.load(bytecodeFile, encoding = "utf-8")
except:
print("Unexpected error parsing {0}: {1}".format(bytecodeJSONFile, sys.exc_info()))
if bytecodeHFilename:
bytecodeHFile.write(hFileHashString)
bytecodeHFile.write(cCopyrightMsg % bytecodeJSONFile)
bytecodeHFile.write("#pragma once\n\n")
if bytecodeStructsHFilename:
bytecodeStructsHFile.write(hFileHashString)
bytecodeStructsHFile.write(cCopyrightMsg % bytecodeJSONFile)
bytecodeStructsHFile.write("#pragma once\n\n")
bytecodeStructsHFile.write("#include \"Instruction.h\"\n")
bytecodeStructsHFile.write("\n")
if initASMFileName:
initBytecodesFile.write(asmFileHashString)
initBytecodesFile.write(asmCopyrightMsg % bytecodeJSONFile)
initASMBytecodeNum = 0
for section in bytecodeSections:
if bytecodeHFilename and section['emitInHFile']:
bytecodeHFile.write("#define FOR_EACH_{0}_ID(macro) \\\n".format(section["macroNameComponent"]))
firstMacro = True
defaultLength = 1
if "defaultLength" in section:
defaultLength = section["defaultLength"]
bytecodeNum = 0
for bytecode in section["bytecodes"]:
if not firstMacro:
bytecodeHFile.write(" \\\n")
length = defaultLength
if "length" in bytecode:
length = bytecode["length"]
elif "offsets" in bytecode:
# Add one for the opcode
length = len(bytecode["offsets"]) + 1
bytecodeHFile.write(" macro({0}, {1})".format(bytecode["name"], length))
firstMacro = False
bytecodeNum = bytecodeNum + 1
bytecodeHFile.write("\n\n")
bytecodeHFile.write("#define NUMBER_OF_{0}_IDS {1}\n\n".format(section["macroNameComponent"], bytecodeNum))
if bytecodeStructsHFilename and section['emitInStructsFile']:
bytecodeStructsHFile.write("namespace JSC {\n\n")
for bytecode in section["bytecodes"]:
if not "offsets" in bytecode:
continue
writeStruct(bytecodeStructsHFile, bytecode)
bytecodeStructsHFile.write("} // namespace JSC \n")
if bytecodeHFilename and section['emitOpcodeIDStringValuesInHFile']:
bytecodeNum = 0
for bytecode in section["bytecodes"]:
bytecodeHFile.write("#define {0}_value_string \"{1}\"\n".format(bytecode["name"], bytecodeNum))
firstMacro = False
bytecodeNum = bytecodeNum + 1
bytecodeHFile.write("\n")
if initASMFileName and section['emitInASMFile']:
prefix = ""
if "asmPrefix" in section:
prefix = section["asmPrefix"]
for bytecode in section["bytecodes"]:
initBytecodesFile.write("setEntryAddress({0}, _{1}{2})\n".format(initASMBytecodeNum, prefix, bytecode["name"]))
initASMBytecodeNum = initASMBytecodeNum + 1
if bytecodeHFilename:
bytecodeHFile.close()
if initASMFileName:
initBytecodesFile.close()
bytecodeFile.close()
exit(0)