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#!/usr/bin/python
import glob
import os
import subprocess
import sys
from sets import Set
from operator import itemgetter
current_arch = sys.argv[1]
print("Building Index Table")
if current_arch not in ("x86_64", "arm64"):
sys.exit()
bitcode_file_original_directory = os.path.join(os.getenv("TARGET_TEMP_DIR"), "Objects-" + os.getenv("CURRENT_VARIANT"), current_arch)
if not os.path.isdir(bitcode_file_original_directory):
print("Failed to build index table at " + bitcode_file_original_directory)
sys.exit()
framework_directory = os.path.join(os.getenv("BUILT_PRODUCTS_DIR"), os.getenv("JAVASCRIPTCORE_RESOURCES_DIR"), "Runtime", current_arch)
symbol_table_location = os.path.join(framework_directory, "Runtime.symtbl")
symbol_table = {}
symbol_table_is_out_of_date = False
symbol_table_modification_time = 0
if os.path.isfile(symbol_table_location):
symbol_table_modification_time = os.path.getmtime(symbol_table_location)
file_suffix = "bc"
file_suffix_length = len(file_suffix)
tested_symbols_location = "./tested-symbols.symlst"
include_symbol_table_location = os.path.join(os.getenv("SHARED_DERIVED_FILE_DIR"), "JavaScriptCore/InlineRuntimeSymbolTable.h")
tested_symbols = Set([])
if os.path.isfile(tested_symbols_location):
with open(tested_symbols_location, 'r') as file:
print("Loading tested symbols")
for line in file:
tested_symbols.add(line[:-1])
print ("Original directory: " + bitcode_file_original_directory)
for bitcode_file in glob.iglob(os.path.join(framework_directory, "*." + file_suffix)):
bitcode_basename = os.path.basename(bitcode_file)
bitcode_file_original = os.path.join(bitcode_file_original_directory, bitcode_basename[:-file_suffix_length] + "o")
if os.path.getmtime(bitcode_file_original) < symbol_table_modification_time:
continue
symbol_table_is_out_of_date = True
print("Appending symbols from " + bitcode_basename)
lines = subprocess.check_output(["nm", "-U", "-j", bitcode_file]).splitlines()
for symbol in lines:
if symbol[:2] == "__" and symbol[-3:] != ".eh" and symbol in tested_symbols:
symbol_table[symbol[1:]] = bitcode_basename
if not symbol_table_is_out_of_date:
sys.exit()
if os.path.isfile(symbol_table_location):
with open(symbol_table_location, 'r') as file:
print("Loading symbol table")
for line in file:
symbol, _, location = line[:-1].partition(" ")
# don't overwrite new symbols with old locations
if not symbol in symbol_table:
symbol_table[symbol] = location
symbol_list = symbol_table.items()
print("Writing symbol table: " + symbol_table_location)
print("Writing inline file: " + include_symbol_table_location)
with open(symbol_table_location, "w") as symbol_file:
with open(include_symbol_table_location, "w") as include_file:
include_file.write("#define FOR_EACH_LIBRARY_SYMBOL(macro)")
for symbol, location in symbol_list:
symbol_file.write("{} {}\n".format(symbol, location))
include_file.write(" \\\nmacro(\"{}\", \"{}\")".format(symbol, location))
include_file.write("\n")
print("Done")
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