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# Copyright (c) 2015, Google Inc. |
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# |
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# Permission to use, copy, modify, and/or distribute this software for any |
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# purpose with or without fee is hereby granted, provided that the above |
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# copyright notice and this permission notice appear in all copies. |
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# |
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
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# SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
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# OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
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# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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"""Enumerates the BoringSSL source in src/ and either generates two gypi files |
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(boringssl.gypi and boringssl_tests.gypi) for Chromium, or generates |
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source-list files for Android.""" |
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import os |
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import subprocess |
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import sys |
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# OS_ARCH_COMBOS maps from OS and platform to the OpenSSL assembly "style" for |
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# that platform and the extension used by asm files. |
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OS_ARCH_COMBOS = [ |
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('linux', 'arm', 'linux32', [], 'S'), |
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('linux', 'aarch64', 'linux64', [], 'S'), |
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('linux', 'x86', 'elf', ['-fPIC', '-DOPENSSL_IA32_SSE2'], 'S'), |
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('linux', 'x86_64', 'elf', [], 'S'), |
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('mac', 'x86', 'macosx', ['-fPIC', '-DOPENSSL_IA32_SSE2'], 'S'), |
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('mac', 'x86_64', 'macosx', [], 'S'), |
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('win', 'x86', 'win32n', ['-DOPENSSL_IA32_SSE2'], 'asm'), |
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('win', 'x86_64', 'nasm', [], 'asm'), |
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] |
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# NON_PERL_FILES enumerates assembly files that are not processed by the |
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# perlasm system. |
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NON_PERL_FILES = { |
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('linux', 'arm'): [ |
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'src/crypto/poly1305/poly1305_arm_asm.S', |
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'src/crypto/chacha/chacha_vec_arm.S', |
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'src/crypto/cpu-arm-asm.S', |
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], |
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} |
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class Chromium(object): |
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def __init__(self): |
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self.header = \ |
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"""# Copyright (c) 2014 The Chromium Authors. All rights reserved. |
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# Use of this source code is governed by a BSD-style license that can be |
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# found in the LICENSE file. |
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# This file is created by generate_build_files.py. Do not edit manually. |
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""" |
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def PrintVariableSection(self, out, name, files): |
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out.write(' \'%s\': [\n' % name) |
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for f in sorted(files): |
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out.write(' \'%s\',\n' % f) |
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out.write(' ],\n') |
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def WriteFiles(self, files, asm_outputs): |
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with open('boringssl.gypi', 'w+') as gypi: |
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gypi.write(self.header + '{\n \'variables\': {\n') |
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self.PrintVariableSection( |
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gypi, 'boringssl_lib_sources', files['crypto'] + files['ssl']) |
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for ((osname, arch), asm_files) in asm_outputs: |
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self.PrintVariableSection(gypi, 'boringssl_%s_%s_sources' % |
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(osname, arch), asm_files) |
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gypi.write(' }\n}\n') |
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with open('boringssl_tests.gypi', 'w+') as test_gypi: |
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test_gypi.write(self.header + '{\n \'targets\': [\n') |
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test_names = [] |
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for test in sorted(files['test']): |
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test_name = 'boringssl_%s' % os.path.splitext(os.path.basename(test))[0] |
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test_gypi.write(""" { |
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'target_name': '%s', |
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'type': 'executable', |
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'dependencies': [ |
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'boringssl.gyp:boringssl', |
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], |
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'sources': [ |
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'%s', |
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], |
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# TODO(davidben): Fix size_t truncations in BoringSSL. |
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# https://crbug.com/429039 |
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'msvs_disabled_warnings': [ 4267, ], |
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},\n""" % (test_name, test)) |
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test_names.append(test_name) |
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test_names.sort() |
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test_gypi.write(""" ], |
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'variables': { |
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'boringssl_test_targets': [\n""") |
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for test in test_names: |
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test_gypi.write(""" '%s',\n""" % test) |
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test_gypi.write(' ],\n }\n}\n') |
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class Android(object): |
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def __init__(self): |
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self.header = \ |
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"""# Copyright (C) 2015 The Android Open Source Project |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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""" |
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def PrintVariableSection(self, out, name, files): |
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out.write('%s := \\\n' % name) |
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for f in sorted(files): |
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out.write(' %s\\\n' % f) |
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out.write('\n') |
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def WriteFiles(self, files, asm_outputs): |
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with open('sources.mk', 'w+') as makefile: |
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makefile.write(self.header) |
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files['crypto'].append('android_compat_hacks.c') |
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files['crypto'].append('android_compat_keywrap.c') |
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self.PrintVariableSection(makefile, 'crypto_sources', files['crypto']) |
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self.PrintVariableSection(makefile, 'ssl_sources', files['ssl']) |
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self.PrintVariableSection(makefile, 'tool_sources', files['tool']) |
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for ((osname, arch), asm_files) in asm_outputs: |
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self.PrintVariableSection( |
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makefile, '%s_%s_sources' % (osname, arch), asm_files) |
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def FindCMakeFiles(directory): |
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"""Returns list of all CMakeLists.txt files recursively in directory.""" |
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cmakefiles = [] |
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for (path, _, filenames) in os.walk(directory): |
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for filename in filenames: |
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if filename == 'CMakeLists.txt': |
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cmakefiles.append(os.path.join(path, filename)) |
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return cmakefiles |
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def NoTests(dent, is_dir): |
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"""Filter function that can be passed to FindCFiles in order to remove test |
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sources.""" |
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if is_dir: |
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return dent != 'test' |
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return 'test.' not in dent and not dent.startswith('example_') |
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def OnlyTests(dent, is_dir): |
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"""Filter function that can be passed to FindCFiles in order to remove |
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non-test sources.""" |
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if is_dir: |
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return True |
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return '_test.' in dent or dent.startswith('example_') |
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def FindCFiles(directory, filter_func): |
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"""Recurses through directory and returns a list of paths to all the C source |
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files that pass filter_func.""" |
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cfiles = [] |
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for (path, dirnames, filenames) in os.walk(directory): |
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for filename in filenames: |
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if not filename.endswith('.c') and not filename.endswith('.cc'): |
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continue |
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if not filter_func(filename, False): |
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continue |
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cfiles.append(os.path.join(path, filename)) |
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for (i, dirname) in enumerate(dirnames): |
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if not filter_func(dirname, True): |
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del dirnames[i] |
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return cfiles |
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def ExtractPerlAsmFromCMakeFile(cmakefile): |
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"""Parses the contents of the CMakeLists.txt file passed as an argument and |
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returns a list of all the perlasm() directives found in the file.""" |
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perlasms = [] |
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with open(cmakefile) as f: |
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for line in f: |
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line = line.strip() |
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if not line.startswith('perlasm('): |
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continue |
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if not line.endswith(')'): |
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raise ValueError('Bad perlasm line in %s' % cmakefile) |
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# Remove "perlasm(" from start and ")" from end |
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params = line[8:-1].split() |
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if len(params) < 2: |
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raise ValueError('Bad perlasm line in %s' % cmakefile) |
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perlasms.append({ |
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'extra_args': params[2:], |
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'input': os.path.join(os.path.dirname(cmakefile), params[1]), |
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'output': os.path.join(os.path.dirname(cmakefile), params[0]), |
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}) |
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return perlasms |
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def ReadPerlAsmOperations(): |
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"""Returns a list of all perlasm() directives found in CMake config files in |
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src/.""" |
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perlasms = [] |
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cmakefiles = FindCMakeFiles('src') |
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for cmakefile in cmakefiles: |
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perlasms.extend(ExtractPerlAsmFromCMakeFile(cmakefile)) |
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return perlasms |
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def PerlAsm(output_filename, input_filename, perlasm_style, extra_args): |
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"""Runs the a perlasm script and puts the output into output_filename.""" |
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base_dir = os.path.dirname(output_filename) |
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if not os.path.isdir(base_dir): |
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os.makedirs(base_dir) |
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output = subprocess.check_output( |
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['perl', input_filename, perlasm_style] + extra_args) |
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with open(output_filename, 'w+') as out_file: |
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out_file.write(output) |
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def ArchForAsmFilename(filename): |
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"""Returns the architectures that a given asm file should be compiled for |
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based on substrings in the filename.""" |
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if 'x86_64' in filename or 'avx2' in filename: |
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return ['x86_64'] |
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elif ('x86' in filename and 'x86_64' not in filename) or '586' in filename: |
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return ['x86'] |
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elif 'armx' in filename: |
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return ['arm', 'aarch64'] |
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elif 'armv8' in filename: |
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return ['aarch64'] |
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elif 'arm' in filename: |
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return ['arm'] |
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else: |
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raise ValueError('Unknown arch for asm filename: ' + filename) |
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def WriteAsmFiles(perlasms): |
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"""Generates asm files from perlasm directives for each supported OS x |
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platform combination.""" |
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asmfiles = {} |
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for osarch in OS_ARCH_COMBOS: |
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(osname, arch, perlasm_style, extra_args, asm_ext) = osarch |
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key = (osname, arch) |
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outDir = '%s-%s' % key |
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for perlasm in perlasms: |
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filename = os.path.basename(perlasm['input']) |
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output = perlasm['output'] |
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if not output.startswith('src'): |
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raise ValueError('output missing src: %s' % output) |
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output = os.path.join(outDir, output[4:]) |
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output = output.replace('${ASM_EXT}', asm_ext) |
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if arch in ArchForAsmFilename(filename): |
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PerlAsm(output, perlasm['input'], perlasm_style, |
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perlasm['extra_args'] + extra_args) |
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asmfiles.setdefault(key, []).append(output) |
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for (key, non_perl_asm_files) in NON_PERL_FILES.iteritems(): |
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asmfiles.setdefault(key, []).extend(non_perl_asm_files) |
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return asmfiles |
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def main(platform): |
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crypto_c_files = FindCFiles(os.path.join('src', 'crypto'), NoTests) |
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ssl_c_files = FindCFiles(os.path.join('src', 'ssl'), NoTests) |
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tool_cc_files = FindCFiles(os.path.join('src', 'tool'), NoTests) |
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# Generate err_data.c |
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with open('err_data.c', 'w+') as err_data: |
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subprocess.check_call(['go', 'run', 'err_data_generate.go'], |
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cwd=os.path.join('src', 'crypto', 'err'), |
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stdout=err_data) |
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crypto_c_files.append('err_data.c') |
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test_c_files = FindCFiles(os.path.join('src', 'crypto'), OnlyTests) |
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test_c_files += FindCFiles(os.path.join('src', 'ssl'), OnlyTests) |
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files = { |
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'crypto': crypto_c_files, |
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'ssl': ssl_c_files, |
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'tool': tool_cc_files, |
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'test': test_c_files, |
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} |
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asm_outputs = sorted(WriteAsmFiles(ReadPerlAsmOperations()).iteritems()) |
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platform.WriteFiles(files, asm_outputs) |
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return 0 |
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def Usage(): |
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print 'Usage: python %s [chromium|android]' % sys.argv[0] |
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sys.exit(1) |
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if __name__ == '__main__': |
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if len(sys.argv) != 2: |
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Usage() |
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platform = None |
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if sys.argv[1] == 'chromium': |
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platform = Chromium() |
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elif sys.argv[1] == 'android': |
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platform = Android() |
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else: |
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Usage() |
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sys.exit(main(platform)) |