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

   1 #!/usr/bin/env python
   2 import subprocess
   3 import os
   4 import errno
   5 import collections
   6 import glob
   7 import argparse
   8
   9 class Platform(object):
  10     pass
  11
  12 class simulator_platform(Platform):
  13     directory = 'darwin_ios'
  14     sdk = 'iphonesimulator'
  15     arch = 'i386'
  16     triple = 'i386-apple-darwin11'
  17     version_min = '-miphoneos-version-min=7.0'
  18
  19     prefix = "#ifdef __i386__\n\n"
  20     suffix = "\n\n#endif"
  21     src_dir = 'x86'
  22     src_files = ['darwin.S', 'win32.S', 'ffi.c']
  23
  24
  25 class simulator64_platform(Platform):
  26     directory = 'darwin_ios'
  27     sdk = 'iphonesimulator'
  28     arch = 'x86_64'
  29     triple = 'x86_64-apple-darwin13'
  30     version_min = '-miphoneos-version-min=7.0'
  31
  32     prefix = "#ifdef __x86_64__\n\n"
  33     suffix = "\n\n#endif"
  34     src_dir = 'x86'
  35     src_files = ['darwin64.S', 'ffi64.c']
  36
  37
  38 class device_platform(Platform):
  39     directory = 'darwin_ios'
  40     sdk = 'iphoneos'
  41     arch = 'armv7'
  42     triple = 'arm-apple-darwin11'
  43     version_min = '-miphoneos-version-min=7.0'
  44
  45     prefix = "#ifdef __arm__\n\n"
  46     suffix = "\n\n#endif"
  47     src_dir = 'arm'
  48     src_files = ['sysv.S', 'trampoline.S', 'ffi.c']
  49
  50
  51 class device64_platform(Platform):
  52     directory = 'darwin_ios'
  53     sdk = 'iphoneos'
  54     arch = 'arm64'
  55     triple = 'aarch64-apple-darwin13'
  56     version_min = '-miphoneos-version-min=7.0'
  57
  58     prefix = "#ifdef __arm64__\n\n"
  59     suffix = "\n\n#endif"
  60     src_dir = 'aarch64'
  61     src_files = ['sysv.S', 'ffi.c']
  62
  63
  64 class desktop32_platform(Platform):
  65     directory = 'darwin_osx'
  66     sdk = 'macosx'
  67     arch = 'i386'
  68     triple = 'i386-apple-darwin10'
  69     version_min = '-mmacosx-version-min=10.6'
  70     src_dir = 'x86'
  71     src_files = ['darwin.S', 'win32.S', 'ffi.c']
  72
  73     prefix = "#ifdef __i386__\n\n"
  74     suffix = "\n\n#endif"
  75
  76
  77 class desktop64_platform(Platform):
  78     directory = 'darwin_osx'
  79     sdk = 'macosx'
  80     arch = 'x86_64'
  81     triple = 'x86_64-apple-darwin10'
  82     version_min = '-mmacosx-version-min=10.6'
  83
  84     prefix = "#ifdef __x86_64__\n\n"
  85     suffix = "\n\n#endif"
  86     src_dir = 'x86'
  87     src_files = ['darwin64.S', 'ffi64.c']
  88
  89
  90 def mkdir_p(path):
  91     try:
  92         os.makedirs(path)
  93     except OSError as exc:  # Python >2.5
  94         if exc.errno == errno.EEXIST:
  95             pass
  96         else:
  97             raise
  98
  99
 100 def move_file(src_dir, dst_dir, filename, file_suffix=None, prefix='', suffix=''):
 101     mkdir_p(dst_dir)
 102     out_filename = filename
 103
 104     if file_suffix:
 105         split_name = os.path.splitext(filename)
 106         out_filename = "%s_%s%s" % (split_name[0], file_suffix, split_name[1])
 107
 108     with open(os.path.join(src_dir, filename)) as in_file:
 109         with open(os.path.join(dst_dir, out_filename), 'w') as out_file:
 110             if prefix:
 111                 out_file.write(prefix)
 112
 113             out_file.write(in_file.read())
 114
 115             if suffix:
 116                 out_file.write(suffix)
 117
 118
 119 def list_files(src_dir, pattern=None, filelist=None):
 120     if pattern: filelist = glob.iglob(os.path.join(src_dir, pattern))
 121     for file in filelist:
 122         yield os.path.basename(file)
 123
 124
 125 def copy_files(src_dir, dst_dir, pattern=None, filelist=None, file_suffix=None, prefix=None, suffix=None):
 126     for filename in list_files(src_dir, pattern=pattern, filelist=filelist):
 127         move_file(src_dir, dst_dir, filename, file_suffix=file_suffix, prefix=prefix, suffix=suffix)
 128
 129
 130 def copy_src_platform_files(platform):
 131     src_dir = os.path.join('src', platform.src_dir)
 132     dst_dir = os.path.join(platform.directory, 'src', platform.src_dir)
 133     copy_files(src_dir, dst_dir, filelist=platform.src_files, file_suffix=platform.arch, prefix=platform.prefix, suffix=platform.suffix)
 134
 135
 136 def build_target(platform, platform_headers):
 137     def xcrun_cmd(cmd):
 138         return 'xcrun -sdk %s %s -arch %s' % (platform.sdk, cmd, platform.arch)
 139
 140     tag='%s-%s' % (platform.sdk, platform.arch)
 141     build_dir = 'build_%s' % tag
 142     mkdir_p(build_dir)
 143     env = dict(CC=xcrun_cmd('clang'),
 144                LD=xcrun_cmd('ld'),
 145                CFLAGS='%s' % (platform.version_min))
 146     working_dir = os.getcwd()
 147     try:
 148         os.chdir(build_dir)
 149         subprocess.check_call(['../configure', '-host', platform.triple], env=env)
 150     finally:
 151         os.chdir(working_dir)
 152
 153     for src_dir in [build_dir, os.path.join(build_dir, 'include')]:
 154         copy_files(src_dir,
 155                    os.path.join(platform.directory, 'include'),
 156                    pattern='*.h',
 157                    file_suffix=platform.arch,
 158                    prefix=platform.prefix,
 159                    suffix=platform.suffix)
 160
 161         for filename in list_files(src_dir, pattern='*.h'):
 162             platform_headers[filename].add((platform.prefix, platform.arch, platform.suffix))
 163
 164
 165 def make_tramp():
 166     with open('src/arm/trampoline.S', 'w') as tramp_out:
 167         p = subprocess.Popen(['bash', 'src/arm/gentramp.sh'], stdout=tramp_out)
 168         p.wait()
 169
 170
 171 def generate_source_and_headers(generate_osx=True, generate_ios=True):
 172     copy_files('src', 'darwin_common/src', pattern='*.c')
 173     copy_files('include', 'darwin_common/include', pattern='*.h')
 174
 175     if generate_ios:
 176         make_tramp()
 177         copy_src_platform_files(simulator_platform)
 178         copy_src_platform_files(simulator64_platform)
 179         copy_src_platform_files(device_platform)
 180         copy_src_platform_files(device64_platform)
 181     if generate_osx:
 182         copy_src_platform_files(desktop32_platform)
 183         copy_src_platform_files(desktop64_platform)
 184
 185     platform_headers = collections.defaultdict(set)
 186
 187     if generate_ios:
 188         build_target(simulator_platform, platform_headers)
 189         build_target(simulator64_platform, platform_headers)
 190         build_target(device_platform, platform_headers)
 191         build_target(device64_platform, platform_headers)
 192     if generate_osx:
 193         build_target(desktop32_platform, platform_headers)
 194         build_target(desktop64_platform, platform_headers)
 195
 196     mkdir_p('darwin_common/include')
 197     for header_name, tag_tuples in platform_headers.iteritems():
 198         basename, suffix = os.path.splitext(header_name)
 199         with open(os.path.join('darwin_common/include', header_name), 'w') as header:
 200             for tag_tuple in tag_tuples:
 201                 header.write('%s#include <%s_%s%s>\n%s\n' % (tag_tuple[0], basename, tag_tuple[1], suffix, tag_tuple[2]))
 202
 203 if __name__ == '__main__':
 204     parser = argparse.ArgumentParser()
 205     parser.add_argument('--only-ios', action='store_true', default=False)
 206     parser.add_argument('--only-osx', action='store_true', default=False)
 207     args = parser.parse_args()
 208
 209     generate_source_and_headers(generate_osx=not args.only_ios, generate_ios=not args.only_osx)