Issue #27407: Add prepare_ssl.py to 2.7
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Zachary Ware
parent
ef2020f634
commit
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#! /usr/bin/env python3
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# Script for preparing OpenSSL for building on Windows.
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# Uses Perl to create nmake makefiles and otherwise prepare the way
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# for building on 32 or 64 bit platforms.
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# Script originally authored by Mark Hammond.
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# Major revisions by:
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# Martin v. Löwis
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# Christian Heimes
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# Zachary Ware
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# THEORETICALLY, you can:
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# * Unpack the latest OpenSSL release where $(opensslDir) in
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# PCbuild\pyproject.props expects it to be.
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# * Install ActivePerl and ensure it is somewhere on your path.
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# * Run this script with the OpenSSL source dir as the only argument.
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#
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# it should configure OpenSSL such that it is ready to be built by
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# ssl.vcxproj on 32 or 64 bit platforms.
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import os
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import re
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import sys
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import subprocess
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from shutil import copy
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# Find all "foo.exe" files on the PATH.
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def find_all_on_path(filename, extras=None):
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entries = os.environ["PATH"].split(os.pathsep)
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ret = []
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for p in entries:
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fname = os.path.abspath(os.path.join(p, filename))
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if os.path.isfile(fname) and fname not in ret:
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ret.append(fname)
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if extras:
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for p in extras:
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fname = os.path.abspath(os.path.join(p, filename))
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if os.path.isfile(fname) and fname not in ret:
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ret.append(fname)
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return ret
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# Find a suitable Perl installation for OpenSSL.
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# cygwin perl does *not* work. ActivePerl does.
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# Being a Perl dummy, the simplest way I can check is if the "Win32" package
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# is available.
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def find_working_perl(perls):
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for perl in perls:
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try:
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subprocess.check_output([perl, "-e", "use Win32;"])
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except subprocess.CalledProcessError:
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continue
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else:
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return perl
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if perls:
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print("The following perl interpreters were found:")
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for p in perls:
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print(" ", p)
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print(" None of these versions appear suitable for building OpenSSL")
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else:
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print("NO perl interpreters were found on this machine at all!")
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print(" Please install ActivePerl and ensure it appears on your path")
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def create_asms(makefile, tmp_d):
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#create a custom makefile out of the provided one
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asm_makefile = os.path.splitext(makefile)[0] + '.asm.mak'
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with open(makefile) as fin, open(asm_makefile, 'w') as fout:
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for line in fin:
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# Keep everything up to the install target (it's convenient)
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if line.startswith('install: all'):
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break
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fout.write(line)
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asms = []
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for line in fin:
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if '.asm' in line and line.strip().endswith('.pl'):
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asms.append(line.split(':')[0])
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while line.strip():
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fout.write(line)
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line = next(fin)
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fout.write('\n')
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fout.write('asms: $(TMP_D) ')
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fout.write(' '.join(asms))
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fout.write('\n')
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os.system('nmake /f {} PERL=perl TMP_D={} asms'.format(asm_makefile, tmp_d))
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def copy_includes(makefile, suffix):
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dir = 'include'+suffix+'\\openssl'
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os.makedirs(dir, exist_ok=True)
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copy_if_different = r'$(PERL) $(SRC_D)\util\copy-if-different.pl'
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with open(makefile) as fin:
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for line in fin:
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if copy_if_different in line:
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perl, script, src, dest = line.split()
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if not '$(INCO_D)' in dest:
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continue
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# We're in the root of the source tree
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src = src.replace('$(SRC_D)', '.').strip('"')
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dest = dest.strip('"').replace('$(INCO_D)', dir)
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print('copying', src, 'to', dest)
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copy(src, dest)
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def run_configure(configure, do_script):
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print("perl Configure "+configure+" no-idea no-mdc2")
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os.system("perl Configure "+configure+" no-idea no-mdc2")
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print(do_script)
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os.system(do_script)
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def prep(arch):
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makefile_template = "ms\\nt{}.mak"
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generated_makefile = makefile_template.format('')
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if arch == "x86":
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configure = "VC-WIN32"
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do_script = "ms\\do_nasm"
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suffix = "32"
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elif arch == "amd64":
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configure = "VC-WIN64A"
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do_script = "ms\\do_win64a"
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suffix = "64"
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#os.environ["VSEXTCOMP_USECL"] = "MS_OPTERON"
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else:
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raise ValueError('Unrecognized platform: %s' % arch)
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print("Creating the makefiles...")
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sys.stdout.flush()
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# run configure, copy includes, create asms
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run_configure(configure, do_script)
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makefile = makefile_template.format(suffix)
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try:
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os.unlink(makefile)
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except FileNotFoundError:
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pass
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os.rename(generated_makefile, makefile)
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copy_includes(makefile, suffix)
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print('creating asms...')
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create_asms(makefile, 'tmp'+suffix)
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def main():
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if len(sys.argv) == 1:
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print("Not enough arguments: directory containing OpenSSL",
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"sources must be supplied")
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sys.exit(1)
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if len(sys.argv) > 2:
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print("Too many arguments supplied, all we need is the directory",
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"containing OpenSSL sources")
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sys.exit(1)
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ssl_dir = sys.argv[1]
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if not os.path.isdir(ssl_dir):
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print(ssl_dir, "is not an existing directory!")
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sys.exit(1)
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# perl should be on the path, but we also look in "\perl" and "c:\\perl"
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# as "well known" locations
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perls = find_all_on_path("perl.exe", [r"\perl\bin",
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r"C:\perl\bin",
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r"\perl64\bin",
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r"C:\perl64\bin",
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])
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perl = find_working_perl(perls)
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if perl:
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print("Found a working perl at '%s'" % (perl,))
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else:
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sys.exit(1)
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if not find_all_on_path('nmake.exe'):
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print('Could not find nmake.exe, try running env.bat')
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sys.exit(1)
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if not find_all_on_path('nasm.exe'):
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print('Could not find nasm.exe, please add to PATH')
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sys.exit(1)
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sys.stdout.flush()
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# Put our working Perl at the front of our path
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os.environ["PATH"] = os.path.dirname(perl) + \
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os.pathsep + \
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os.environ["PATH"]
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old_cwd = os.getcwd()
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try:
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os.chdir(ssl_dir)
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for arch in ['amd64', 'x86']:
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prep(arch)
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finally:
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os.chdir(old_cwd)
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if __name__=='__main__':
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main()
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