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#!/usr/bin/env python3
# Copyright 2020 The Emscripten Authors. All rights reserved.
# Emscripten is available under two separate licenses, the MIT license and the
# University of Illinois/NCSA Open Source License. Both these licenses can be
# found in the LICENSE file.
import glob
import os
import sys
import shutil
script_dir = os.path.abspath(os.path.dirname(__file__))
emscripten_root = os.path.dirname(os.path.dirname(script_dir))
default_llvm_dir = os.path.join(os.path.dirname(emscripten_root), 'llvm-project')
local_src = os.path.join(script_dir, 'compiler-rt')
copy_dirs = [
('include', 'sanitizer'),
('lib', 'sanitizer_common'),
('lib', 'asan'),
('lib', 'interception'),
('lib', 'builtins'),
('lib', 'lsan'),
('lib', 'ubsan'),
('lib', 'ubsan_minimal'),
]
preserve_files = ('readme.txt',)
def clear(dirname):
for f in os.listdir(dirname):
if f in preserve_files or 'emscripten' in f:
continue
full = os.path.join(dirname, f)
if os.path.isdir(full):
shutil.rmtree(full)
else:
os.remove(full)
def main():
if len(sys.argv) > 1:
llvm_dir = os.path.join(os.path.abspath(sys.argv[1]))
else:
llvm_dir = default_llvm_dir
upstream_dir = os.path.join(llvm_dir, 'compiler-rt')
assert os.path.exists(upstream_dir)
upstream_src = os.path.join(upstream_dir, 'lib', 'builtins')
upstream_include = os.path.join(upstream_dir, 'include', 'sanitizer')
assert os.path.exists(upstream_src)
assert os.path.exists(upstream_include)
for dirname in copy_dirs:
srcdir = os.path.join(upstream_dir, *dirname)
assert os.path.exists(srcdir)
dest = os.path.join(local_src, *dirname)
clear(dest)
for name in os.listdir(srcdir):
if name in ('.clang-format', 'CMakeLists.txt', 'README.txt', 'weak_symbols.txt'):
continue
if name.endswith('.syms.extra') or name.endswith('.S'):
continue
if os.path.isfile(os.path.join(srcdir, name)):
shutil.copy2(os.path.join(srcdir, name), dest)
shutil.copy2(os.path.join(upstream_dir, 'CREDITS.TXT'), local_src)
shutil.copy2(os.path.join(upstream_dir, 'LICENSE.TXT'), local_src)
if __name__ == '__main__':
main()
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