c3-lang/libffi/generate-darwin-source-and-headers.py

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• Hash : 432384b6
  Author :
  Date : 2022-05-24T09:06:19
  

  Add support for ARM64 as an Apple simulator platform. (#712)
  
  

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• generate-darwin-source-and-headers.py

• #!/usr/bin/env python
  import subprocess
  import os
  import errno
  import collections
  import glob
  import argparse
  
  
  class Platform(object):
      pass
  
  
  class i386_platform(Platform):
      arch = 'i386'
  
      prefix = "#ifdef __i386__\n\n"
      suffix = "\n\n#endif"
      src_dir = 'x86'
      src_files = ['sysv.S', 'ffi.c', 'internal.h']
  
  
  class x86_64_platform(Platform):
      arch = 'x86_64'
  
      prefix = "#ifdef __x86_64__\n\n"
      suffix = "\n\n#endif"
      src_dir = 'x86'
      src_files = ['unix64.S', 'ffi64.c', 'ffiw64.c', 'win64.S', 'internal64.h', 'asmnames.h']
  
  
  class arm64_platform(Platform):
      arch = 'arm64'
  
      prefix = "#ifdef __arm64__\n\n"
      suffix = "\n\n#endif"
      src_dir = 'aarch64'
      src_files = ['sysv.S', 'ffi.c', 'internal.h']
  
  
  class armv7_platform(Platform):
      arch = 'armv7'
  
      prefix = "#ifdef __arm__\n\n"
      suffix = "\n\n#endif"
      src_dir = 'arm'
      src_files = ['sysv.S', 'ffi.c', 'internal.h']
  
  
  class ios_simulator_i386_platform(i386_platform):
      triple = 'i386-apple-darwin11'
      target = 'i386-apple-ios-simulator'
      directory = 'darwin_ios'
      sdk = 'iphonesimulator'
      version_min = '-miphoneos-version-min=7.0'
  
  
  class ios_simulator_x86_64_platform(x86_64_platform):
      triple = 'x86_64-apple-darwin13'
      target = 'x86_64-apple-ios-simulator'
      directory = 'darwin_ios'
      sdk = 'iphonesimulator'
      version_min = '-miphoneos-version-min=7.0'
  
  
  class ios_simulator_arm64_platform(arm64_platform):
      triple = 'aarch64-apple-darwin20'
      target = 'arm64-apple-ios-simulator'
      directory = 'darwin_ios'
      sdk = 'iphonesimulator'
      version_min = '-miphoneos-version-min=7.0'
  
  
  class ios_device_armv7_platform(armv7_platform):
      triple = 'arm-apple-darwin11'
      target = 'armv7-apple-ios'
      directory = 'darwin_ios'
      sdk = 'iphoneos'
      version_min = '-miphoneos-version-min=7.0'
  
  
  class ios_device_arm64_platform(arm64_platform):
      triple = 'aarch64-apple-darwin13'
      target = 'arm64-apple-ios'
      directory = 'darwin_ios'
      sdk = 'iphoneos'
      version_min = '-miphoneos-version-min=7.0'
  
  
  class desktop_x86_64_platform(x86_64_platform):
      triple = 'x86_64-apple-darwin10'
      target = 'x86_64-apple-macos'
      directory = 'darwin_osx'
      sdk = 'macosx'
      version_min = '-mmacosx-version-min=10.6'
  
  
  class desktop_arm64_platform(arm64_platform):
      triple = 'aarch64-apple-darwin20'
      target = 'arm64-apple-macos'
      directory = 'darwin_osx'
      sdk = 'macosx'
      version_min = '-mmacosx-version-min=11.0'
  
  
  class tvos_simulator_x86_64_platform(x86_64_platform):
      triple = 'x86_64-apple-darwin13'
      target = 'x86_64-apple-tvos-simulator'
      directory = 'darwin_tvos'
      sdk = 'appletvsimulator'
      version_min = '-mtvos-version-min=9.0'
  
  
  class tvos_simulator_arm64_platform(arm64_platform):
      triple = 'aarch64-apple-darwin20'
      target = 'arm64-apple-tvos-simulator'
      directory = 'darwin_tvos'
      sdk = 'appletvsimulator'
      version_min = '-mtvos-version-min=9.0'
  
  
  class tvos_device_arm64_platform(arm64_platform):
      triple = 'aarch64-apple-darwin13'
      target = 'arm64-apple-tvos'
      directory = 'darwin_tvos'
      sdk = 'appletvos'
      version_min = '-mtvos-version-min=9.0'
  
  
  class watchos_simulator_i386_platform(i386_platform):
      triple = 'i386-apple-darwin11'
      target = 'i386-apple-watchos-simulator'
      directory = 'darwin_watchos'
      sdk = 'watchsimulator'
      version_min = '-mwatchos-version-min=4.0'
  
  
  class watchos_simulator_x86_64_platform(x86_64_platform):
      triple = 'x86_64-apple-darwin13'
      target = 'x86_64-apple-watchos-simulator'
      directory = 'darwin_watchos'
      sdk = 'watchsimulator'
      version_min = '-mwatchos-version-min=4.0'
  
  
  class watchos_simulator_arm64_platform(arm64_platform):
      triple = 'aarch64-apple-darwin20'
      target = 'arm64-apple-watchos-simulator'
      directory = 'darwin_watchos'
      sdk = 'watchsimulator'
      version_min = '-mwatchos-version-min=4.0'
  
  
  class watchos_device_armv7k_platform(armv7_platform):
      triple = 'arm-apple-darwin11'
      target = 'armv7k-apple-watchos'
      directory = 'darwin_watchos'
      sdk = 'watchos'
      arch = 'armv7k'
      version_min = '-mwatchos-version-min=4.0'
  
  
  class watchos_device_arm64_32_platform(arm64_platform):
      triple = 'aarch64-apple-darwin13'
      target = 'arm64_32-apple-watchos'
      directory = 'darwin_watchos'
      sdk = 'watchos'
      arch = 'arm64_32'
      version_min = '-mwatchos-version-min=4.0'
  
  
  def mkdir_p(path):
      try:
          os.makedirs(path)
      except OSError as exc:  # Python >2.5
          if exc.errno != errno.EEXIST:
              raise
  
  
  def move_file(src_dir, dst_dir, filename, file_suffix=None, prefix='', suffix=''):
      mkdir_p(dst_dir)
      out_filename = filename
  
      if file_suffix:
          if filename in ['internal64.h', 'asmnames.h', 'internal.h']:
              out_filename = filename
          else:
              split_name = os.path.splitext(filename)
              out_filename = "%s_%s%s" % (split_name[0], file_suffix, split_name[1])
  
      with open(os.path.join(src_dir, filename)) as in_file:
          with open(os.path.join(dst_dir, out_filename), 'w') as out_file:
              if prefix:
                  out_file.write(prefix)
  
              out_file.write(in_file.read())
  
              if suffix:
                  out_file.write(suffix)
  
  
  def list_files(src_dir, pattern=None, filelist=None):
      if pattern: filelist = glob.iglob(os.path.join(src_dir, pattern))
      for file in filelist:
          yield os.path.basename(file)
  
  
  def copy_files(src_dir, dst_dir, pattern=None, filelist=None, file_suffix=None, prefix=None, suffix=None):
      for filename in list_files(src_dir, pattern=pattern, filelist=filelist):
          move_file(src_dir, dst_dir, filename, file_suffix=file_suffix, prefix=prefix, suffix=suffix)
  
  
  def copy_src_platform_files(platform):
      src_dir = os.path.join('src', platform.src_dir)
      dst_dir = os.path.join(platform.directory, 'src', platform.src_dir)
      copy_files(src_dir, dst_dir, filelist=platform.src_files, file_suffix=platform.arch, prefix=platform.prefix, suffix=platform.suffix)
  
  
  def build_target(platform, platform_headers):
      def xcrun_cmd(cmd):
          return 'xcrun -sdk %s %s -target %s' % (platform.sdk, cmd, platform.target)
  
      tag='%s-%s' % (platform.sdk, platform.arch)
      build_dir = 'build_%s' % tag
      mkdir_p(build_dir)
      env = dict(CC=xcrun_cmd('clang'),
                 LD=xcrun_cmd('ld'),
                 CFLAGS='%s -fembed-bitcode' % (platform.version_min))
      working_dir = os.getcwd()
      try:
          os.chdir(build_dir)
          subprocess.check_call(['../configure', '-host', platform.triple], env=env)
      finally:
          os.chdir(working_dir)
  
      for src_dir in [build_dir, os.path.join(build_dir, 'include')]:
          copy_files(src_dir,
                     os.path.join(platform.directory, 'include'),
                     pattern='*.h',
                     file_suffix=platform.arch,
                     prefix=platform.prefix,
                     suffix=platform.suffix)
  
          for filename in list_files(src_dir, pattern='*.h'):
              platform_headers[filename].add((platform.prefix, platform.arch, platform.suffix))
  
  
  def generate_source_and_headers(
      generate_osx=True,
      generate_ios=True,
      generate_tvos=True,
      generate_watchos=True,
  ):
      copy_files('src', 'darwin_common/src', pattern='*.c')
      copy_files('include', 'darwin_common/include', pattern='*.h')
  
      if generate_ios:
          copy_src_platform_files(ios_simulator_i386_platform)
          copy_src_platform_files(ios_simulator_x86_64_platform)
          copy_src_platform_files(ios_simulator_arm64_platform)
          copy_src_platform_files(ios_device_armv7_platform)
          copy_src_platform_files(ios_device_arm64_platform)
      if generate_osx:
          copy_src_platform_files(desktop_x86_64_platform)
          copy_src_platform_files(desktop_arm64_platform)
      if generate_tvos:
          copy_src_platform_files(tvos_simulator_x86_64_platform)
          copy_src_platform_files(tvos_simulator_arm64_platform)
          copy_src_platform_files(tvos_device_arm64_platform)
      if generate_watchos:
          copy_src_platform_files(watchos_simulator_i386_platform)
          copy_src_platform_files(watchos_simulator_x86_64_platform)
          copy_src_platform_files(watchos_simulator_arm64_platform)
          copy_src_platform_files(watchos_device_armv7k_platform)
          copy_src_platform_files(watchos_device_arm64_32_platform)
  
      platform_headers = collections.defaultdict(set)
  
      if generate_ios:
          build_target(ios_simulator_i386_platform, platform_headers)
          build_target(ios_simulator_x86_64_platform, platform_headers)
          build_target(ios_simulator_arm64_platform, platform_headers)
          build_target(ios_device_armv7_platform, platform_headers)
          build_target(ios_device_arm64_platform, platform_headers)
      if generate_osx:
          build_target(desktop_x86_64_platform, platform_headers)
          build_target(desktop_arm64_platform, platform_headers)
      if generate_tvos:
          build_target(tvos_simulator_x86_64_platform, platform_headers)
          build_target(tvos_simulator_arm64_platform, platform_headers)
          build_target(tvos_device_arm64_platform, platform_headers)
      if generate_watchos:
          build_target(watchos_simulator_i386_platform, platform_headers)
          build_target(watchos_simulator_x86_64_platform, platform_headers)
          build_target(watchos_simulator_arm64_platform, platform_headers)
          build_target(watchos_device_armv7k_platform, platform_headers)
          build_target(watchos_device_arm64_32_platform, platform_headers)
  
      mkdir_p('darwin_common/include')
      for header_name, tag_tuples in platform_headers.items():
          basename, suffix = os.path.splitext(header_name)
          with open(os.path.join('darwin_common/include', header_name), 'w') as header:
              for tag_tuple in tag_tuples:
                  header.write('%s#include <%s_%s%s>\n%s\n' % (tag_tuple[0], basename, tag_tuple[1], suffix, tag_tuple[2]))
  
  if __name__ == '__main__':
      parser = argparse.ArgumentParser()
      parser.add_argument('--only-ios', action='store_true', default=False)
      parser.add_argument('--only-osx', action='store_true', default=False)
      parser.add_argument('--only-tvos', action='store_true', default=False)
      parser.add_argument('--only-watchos', action='store_true', default=False)
      args = parser.parse_args()
  
      generate_source_and_headers(
          generate_osx=not args.only_ios and not args.only_tvos and not args.only_watchos,
          generate_ios=not args.only_osx and not args.only_tvos and not args.only_watchos,
          generate_tvos=not args.only_ios and not args.only_osx and not args.only_watchos,
          generate_watchos=not args.only_ios and not args.only_osx and not args.only_tvos,
      )
  

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