JavaScriptCore-7601.1.46.3.tar.gz

[apple/javascriptcore.git] / create-symbol-table-index.py

diff --git a/create-symbol-table-index.py b/create-symbol-table-index.py
new file mode 100755 (executable)
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+++ b/create-symbol-table-index.py
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+#!/usr/bin/python
+
+# Copyright (C) 2014 Apple Inc. All rights reserved.
+# Copyright (C) 2014 University of Szeged. All rights reserved.
+# Copyright (C) 2014 Samsung Electronics. 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 INC. ``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 INC. OR
+# 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.
+
+import glob
+import os
+import subprocess
+import sys
+import shutil
+import re
+from sets import Set
+from operator import itemgetter
+
+print("Building Index Table")
+
+RUNTIME_INSTALL_DIR = sys.argv[1]
+JSC_DIR = sys.argv[2]
+DERIVED_SOURCES_DIR = sys.argv[3]
+LLVM_BINS = sys.argv[4]
+
+try:
+    os.mkdir(os.path.join(RUNTIME_INSTALL_DIR, "runtime"))
+except OSError:
+    pass
+
+symbol_table_location = os.path.join(RUNTIME_INSTALL_DIR, "runtime", "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 = os.path.join(JSC_DIR, "tested-symbols.symlst")
+include_symbol_table_location = os.path.join(DERIVED_SOURCES_DIR, "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])
+
+for bitcode_file in glob.iglob(os.path.join(RUNTIME_INSTALL_DIR, "runtime", "*." + file_suffix)):
+    bitcode_basename = os.path.basename(bitcode_file)
+
+    print("Appending symbols from " + bitcode_basename)
+    lines = subprocess.check_output([os.path.join(LLVM_BINS, "llvm-nm"), "--defined-only", bitcode_file]).splitlines()
+
+    for line in lines:
+        symbol = line.split()[1]
+        if (symbol[:1] == "_" and symbol[-3:] != ".eh" and (("_" + symbol in tested_symbols) or ("_" + symbol[:7] + "L" + symbol[7:] in tested_symbols))):
+            symbol_table[symbol] = bitcode_basename
+
+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")