create-symbol-table-index.py

   1 #!/usr/bin/python
   2
   3 # Copyright (C) 2014 Apple Inc. All rights reserved.
   4 # Copyright (C) 2014 University of Szeged. All rights reserved.
   5 # Copyright (C) 2014 Samsung Electronics. All rights reserved.
   6 #
   7 # Redistribution and use in source and binary forms, with or without
   8 # modification, are permitted provided that the following conditions
   9 # are met:
  10 # 1. Redistributions of source code must retain the above copyright
  11 #    notice, this list of conditions and the following disclaimer.
  12 # 2. Redistributions in binary form must reproduce the above copyright
  13 #    notice, this list of conditions and the following disclaimer in the
  14 #    documentation and/or other materials provided with the distribution.
  15 #
  16 # THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  17 # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  19 # PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  20 # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  21 # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  22 # PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  23 # PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  24 # OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27
  28 import glob
  29 import os
  30 import subprocess
  31 import sys
  32 import shutil
  33 import re
  34 from sets import Set
  35 from operator import itemgetter
  36
  37 print("Building Index Table")
  38
  39 RUNTIME_INSTALL_DIR = sys.argv[1]
  40 JSC_DIR = sys.argv[2]
  41 DERIVED_SOURCES_DIR = sys.argv[3]
  42 LLVM_BINS = sys.argv[4]
  43
  44 try:
  45     os.mkdir(os.path.join(RUNTIME_INSTALL_DIR, "runtime"))
  46 except OSError:
  47     pass
  48
  49 symbol_table_location = os.path.join(RUNTIME_INSTALL_DIR, "runtime", "Runtime.symtbl")
  50
  51 symbol_table = {}
  52
  53 symbol_table_is_out_of_date = False
  54
  55 symbol_table_modification_time = 0
  56
  57 if os.path.isfile(symbol_table_location):
  58     symbol_table_modification_time = os.path.getmtime(symbol_table_location)
  59
  60 file_suffix = "bc"
  61 file_suffix_length = len(file_suffix)
  62
  63 tested_symbols_location = os.path.join(JSC_DIR, "tested-symbols.symlst")
  64 include_symbol_table_location = os.path.join(DERIVED_SOURCES_DIR, "InlineRuntimeSymbolTable.h")
  65
  66 tested_symbols = Set([])
  67
  68 if os.path.isfile(tested_symbols_location):
  69     with open(tested_symbols_location, 'r') as file:
  70         print("Loading tested symbols")
  71         for line in file:
  72             tested_symbols.add(line[:-1])
  73
  74 for bitcode_file in glob.iglob(os.path.join(RUNTIME_INSTALL_DIR, "runtime", "*." + file_suffix)):
  75     bitcode_basename = os.path.basename(bitcode_file)
  76
  77     print("Appending symbols from " + bitcode_basename)
  78     lines = subprocess.check_output([os.path.join(LLVM_BINS, "llvm-nm"), "--defined-only", bitcode_file]).splitlines()
  79
  80     for line in lines:
  81         symbol = line.split()[1]
  82         if (symbol[:1] == "_" and symbol[-3:] != ".eh" and (("_" + symbol in tested_symbols) or ("_" + symbol[:7] + "L" + symbol[7:] in tested_symbols))):
  83             symbol_table[symbol] = bitcode_basename
  84
  85 if os.path.isfile(symbol_table_location):
  86     with open(symbol_table_location, 'r') as file:
  87         print("Loading symbol table")
  88         for line in file:
  89             symbol, _, location = line[:-1].partition(" ")
  90             # don't overwrite new symbols with old locations
  91             if not symbol in symbol_table:
  92                 symbol_table[symbol] = location
  93
  94 symbol_list = symbol_table.items()
  95
  96 print("Writing symbol table: " + symbol_table_location)
  97 print("Writing inline file: " + include_symbol_table_location)
  98
  99 with open(symbol_table_location, "w") as symbol_file:
 100     with open(include_symbol_table_location, "w") as include_file:
 101         include_file.write("#define FOR_EACH_LIBRARY_SYMBOL(macro)")
 102         for symbol, location in symbol_list:
 103             symbol_file.write("{} {}\n".format(symbol, location))
 104             include_file.write(" \\\nmacro(\"{}\", \"{}\")".format(symbol, location))
 105         include_file.write("\n")
 106 print("Done")