buildtools/wafsamba/samba_conftests.py

   1 # a set of config tests that use the samba_autoconf functions
   2 # to test for commonly needed configuration options
   3
   4 import os, shutil, re
   5 from waflib import Build, Configure, Utils, Options, Logs, Errors
   6 from waflib.Configure import conf
   7 from samba_utils import TO_LIST, ADD_LD_LIBRARY_PATH, get_string
   8
   9
  10 def add_option(self, *k, **kw):
  11     '''syntax help: provide the "match" attribute to opt.add_option() so that folders can be added to specific config tests'''
  12     Options.OptionsContext.parser = self
  13     match = kw.get('match', [])
  14     if match:
  15         del kw['match']
  16     opt = self.parser.add_option(*k, **kw)
  17     opt.match = match
  18     return opt
  19 Options.OptionsContext.add_option = add_option
  20
  21 @conf
  22 def check(self, *k, **kw):
  23     '''Override the waf defaults to inject --with-directory options'''
  24
  25     if not 'env' in kw:
  26         kw['env'] = self.env.derive()
  27
  28     # match the configuration test with specific options, for example:
  29     # --with-libiconv -> Options.options.iconv_open -> "Checking for library iconv"
  30     additional_dirs = []
  31     if 'msg' in kw:
  32         msg = kw['msg']
  33         for x in Options.OptionsContext.parser.parser.option_list:
  34              if getattr(x, 'match', None) and msg in x.match:
  35                  d = getattr(Options.options, x.dest, '')
  36                  if d:
  37                      additional_dirs.append(d)
  38
  39     # we add the additional dirs twice: once for the test data, and again if the compilation test suceeds below
  40     def add_options_dir(dirs, env):
  41         for x in dirs:
  42              if not x in env.CPPPATH:
  43                  env.CPPPATH = [os.path.join(x, 'include')] + env.CPPPATH
  44              if not x in env.LIBPATH:
  45                  env.LIBPATH = [os.path.join(x, 'lib')] + env.LIBPATH
  46
  47     add_options_dir(additional_dirs, kw['env'])
  48
  49     self.validate_c(kw)
  50     self.start_msg(kw['msg'])
  51     ret = None
  52     try:
  53         ret = self.run_c_code(*k, **kw)
  54     except Configure.ConfigurationError as e:
  55         self.end_msg(kw['errmsg'], 'YELLOW')
  56         if 'mandatory' in kw and kw['mandatory']:
  57             if Logs.verbose > 1:
  58                 raise
  59             else:
  60                 self.fatal('the configuration failed (see %r)' % self.log.name)
  61     else:
  62         kw['success'] = ret
  63         self.end_msg(self.ret_msg(kw['okmsg'], kw))
  64
  65         # success! keep the CPPPATH/LIBPATH
  66         add_options_dir(additional_dirs, self.env)
  67
  68     self.post_check(*k, **kw)
  69     if not kw.get('execute', False):
  70         return ret == 0
  71     return ret
  72
  73
  74 @conf
  75 def CHECK_ICONV(conf, define='HAVE_NATIVE_ICONV'):
  76     '''check if the iconv library is installed
  77        optionally pass a define'''
  78     if conf.CHECK_FUNCS_IN('iconv_open', 'iconv', checklibc=True, headers='iconv.h'):
  79         conf.DEFINE(define, 1)
  80         return True
  81     return False
  82
  83
  84 @conf
  85 def CHECK_LARGEFILE(conf, define='HAVE_LARGEFILE'):
  86     '''see what we need for largefile support'''
  87     getconf_cflags = conf.CHECK_COMMAND(['getconf', 'LFS_CFLAGS']);
  88     if getconf_cflags is not False:
  89         if (conf.CHECK_CODE('if (sizeof(off_t) < 8) return 1',
  90                             define='WORKING_GETCONF_LFS_CFLAGS',
  91                             execute=True,
  92                             cflags=getconf_cflags,
  93                             msg='Checking getconf large file support flags work')):
  94             conf.ADD_CFLAGS(getconf_cflags)
  95             getconf_cflags_list=TO_LIST(getconf_cflags)
  96             for flag in getconf_cflags_list:
  97                 if flag[:2] == "-D":
  98                     flag_split = flag[2:].split('=')
  99                     if len(flag_split) == 1:
 100                         conf.DEFINE(flag_split[0], '1')
 101                     else:
 102                         conf.DEFINE(flag_split[0], flag_split[1])
 103
 104     if conf.CHECK_CODE('if (sizeof(off_t) < 8) return 1',
 105                        define,
 106                        execute=True,
 107                        msg='Checking for large file support without additional flags'):
 108         return True
 109
 110     if conf.CHECK_CODE('if (sizeof(off_t) < 8) return 1',
 111                        define,
 112                        execute=True,
 113                        cflags='-D_FILE_OFFSET_BITS=64',
 114                        msg='Checking for -D_FILE_OFFSET_BITS=64'):
 115         conf.DEFINE('_FILE_OFFSET_BITS', 64)
 116         return True
 117
 118     if conf.CHECK_CODE('if (sizeof(off_t) < 8) return 1',
 119                        define,
 120                        execute=True,
 121                        cflags='-D_LARGE_FILES',
 122                        msg='Checking for -D_LARGE_FILES'):
 123         conf.DEFINE('_LARGE_FILES', 1)
 124         return True
 125     return False
 126
 127
 128 @conf
 129 def CHECK_C_PROTOTYPE(conf, function, prototype, define, headers=None, msg=None):
 130     '''verify that a C prototype matches the one on the current system'''
 131     if not conf.CHECK_DECLS(function, headers=headers):
 132         return False
 133     if not msg:
 134         msg = 'Checking C prototype for %s' % function
 135     return conf.CHECK_CODE('%s; void *_x = (void *)%s' % (prototype, function),
 136                            define=define,
 137                            local_include=False,
 138                            headers=headers,
 139                            link=False,
 140                            execute=False,
 141                            msg=msg)
 142
 143
 144 @conf
 145 def CHECK_CHARSET_EXISTS(conf, charset, outcharset='UCS-2LE', headers=None, define=None):
 146     '''check that a named charset is able to be used with iconv_open() for conversion
 147     to a target charset
 148     '''
 149     msg = 'Checking if can we convert from %s to %s' % (charset, outcharset)
 150     if define is None:
 151         define = 'HAVE_CHARSET_%s' % charset.upper().replace('-','_')
 152     return conf.CHECK_CODE('''
 153                            iconv_t cd = iconv_open("%s", "%s");
 154                            if (cd == 0 || cd == (iconv_t)-1) return -1;
 155                            ''' % (charset, outcharset),
 156                            define=define,
 157                            execute=True,
 158                            msg=msg,
 159                            lib='iconv',
 160                            headers=headers)
 161
 162 def find_config_dir(conf):
 163     '''find a directory to run tests in'''
 164     k = 0
 165     while k < 10000:
 166         dir = os.path.join(conf.bldnode.abspath(), '.conf_check_%d' % k)
 167         try:
 168             shutil.rmtree(dir)
 169         except OSError:
 170             pass
 171         try:
 172             os.stat(dir)
 173         except:
 174             break
 175         k += 1
 176
 177     try:
 178         os.makedirs(dir)
 179     except:
 180         conf.fatal('cannot create a configuration test folder %r' % dir)
 181
 182     try:
 183         os.stat(dir)
 184     except:
 185         conf.fatal('cannot use the configuration test folder %r' % dir)
 186     return dir
 187
 188 @conf
 189 def CHECK_SHLIB_INTRASINC_NAME_FLAGS(conf, msg):
 190     '''
 191         check if the waf default flags for setting the name of lib
 192         are ok
 193     '''
 194
 195     snip = '''
 196 int foo(int v) {
 197     return v * 2;
 198 }
 199 '''
 200     return conf.check(features='c cshlib',vnum="1",fragment=snip,msg=msg, mandatory=False)
 201
 202 @conf
 203 def CHECK_NEED_LC(conf, msg):
 204     '''check if we need -lc'''
 205
 206     dir = find_config_dir(conf)
 207
 208     env = conf.env
 209
 210     bdir = os.path.join(dir, 'testbuild2')
 211     if not os.path.exists(bdir):
 212         os.makedirs(bdir)
 213
 214
 215     subdir = os.path.join(dir, "liblctest")
 216
 217     os.makedirs(subdir)
 218
 219     Utils.writef(os.path.join(subdir, 'liblc1.c'), '#include <stdio.h>\nint lib_func(void) { FILE *f = fopen("foo", "r");}\n')
 220
 221     bld = Build.BuildContext()
 222     bld.log = conf.log
 223     bld.all_envs.update(conf.all_envs)
 224     bld.all_envs['default'] = env
 225     bld.lst_variants = bld.all_envs.keys()
 226     bld.load_dirs(dir, bdir)
 227
 228     bld.rescan(bld.srcnode)
 229
 230     bld(features='c cshlib',
 231         source='liblctest/liblc1.c',
 232         ldflags=conf.env['EXTRA_LDFLAGS'],
 233         target='liblc',
 234         name='liblc')
 235
 236     try:
 237         bld.compile()
 238         conf.check_message(msg, '', True)
 239         return True
 240     except:
 241         conf.check_message(msg, '', False)
 242         return False
 243
 244
 245 @conf
 246 def CHECK_SHLIB_W_PYTHON(conf, msg):
 247     '''check if we need -undefined dynamic_lookup'''
 248
 249     dir = find_config_dir(conf)
 250     snip = '''
 251 #include <Python.h>
 252 #include <crt_externs.h>
 253 #define environ (*_NSGetEnviron())
 254
 255 static PyObject *ldb_module = NULL;
 256 int foo(int v) {
 257     extern char **environ;
 258     environ[0] = 1;
 259     ldb_module = PyImport_ImportModule("ldb");
 260     return v * 2;
 261 }
 262 '''
 263     return conf.check(features='c cshlib',uselib='PYEMBED',fragment=snip,msg=msg, mandatory=False)
 264
 265 # this one is quite complex, and should probably be broken up
 266 # into several parts. I'd quite like to create a set of CHECK_COMPOUND()
 267 # functions that make writing complex compound tests like this much easier
 268 @conf
 269 def CHECK_LIBRARY_SUPPORT(conf, rpath=False, version_script=False, msg=None):
 270     '''see if the platform supports building libraries'''
 271
 272     if msg is None:
 273         if rpath:
 274             msg = "rpath library support"
 275         else:
 276             msg = "building library support"
 277
 278     dir = find_config_dir(conf)
 279
 280     bdir = os.path.join(dir, 'testbuild')
 281     if not os.path.exists(bdir):
 282         os.makedirs(bdir)
 283
 284     env = conf.env
 285
 286     subdir = os.path.join(dir, "libdir")
 287
 288     os.makedirs(subdir)
 289
 290     Utils.writef(os.path.join(subdir, 'lib1.c'), 'int lib_func(void) { return 42; }\n')
 291     Utils.writef(os.path.join(dir, 'main.c'),
 292                  'int lib_func(void);\n'
 293                  'int main(void) {return !(lib_func() == 42);}\n')
 294
 295     bld = Build.BuildContext()
 296     bld.log = conf.log
 297     bld.all_envs.update(conf.all_envs)
 298     bld.all_envs['default'] = env
 299     bld.lst_variants = bld.all_envs.keys()
 300     bld.load_dirs(dir, bdir)
 301
 302     bld.rescan(bld.srcnode)
 303
 304     ldflags = []
 305     if version_script:
 306         ldflags.append("-Wl,--version-script=%s/vscript" % bld.path.abspath())
 307         Utils.writef(os.path.join(dir,'vscript'), 'TEST_1.0A2 { global: *; };\n')
 308
 309     bld(features='c cshlib',
 310         source='libdir/lib1.c',
 311         target='libdir/lib1',
 312         ldflags=ldflags,
 313         name='lib1')
 314
 315     o = bld(features='c cprogram',
 316             source='main.c',
 317             target='prog1',
 318             uselib_local='lib1')
 319
 320     if rpath:
 321         o.rpath=os.path.join(bdir, 'default/libdir')
 322
 323     # compile the program
 324     try:
 325         bld.compile()
 326     except:
 327         conf.check_message(msg, '', False)
 328         return False
 329
 330     # path for execution
 331     lastprog = o.link_task.outputs[0].abspath(env)
 332
 333     if not rpath:
 334         if 'LD_LIBRARY_PATH' in os.environ:
 335             old_ld_library_path = os.environ['LD_LIBRARY_PATH']
 336         else:
 337             old_ld_library_path = None
 338         ADD_LD_LIBRARY_PATH(os.path.join(bdir, 'default/libdir'))
 339
 340     # we need to run the program, try to get its result
 341     args = conf.SAMBA_CROSS_ARGS(msg=msg)
 342     proc = Utils.subprocess.Popen([lastprog] + args,
 343             stdout=Utils.subprocess.PIPE, stderr=Utils.subprocess.PIPE)
 344     (out, err) = proc.communicate()
 345     w = conf.log.write
 346     w(str(out))
 347     w('\n')
 348     w(str(err))
 349     w('\nreturncode %r\n' % proc.returncode)
 350     ret = (proc.returncode == 0)
 351
 352     if not rpath:
 353         os.environ['LD_LIBRARY_PATH'] = old_ld_library_path or ''
 354
 355     conf.check_message(msg, '', ret)
 356     return ret
 357
 358
 359
 360 @conf
 361 def CHECK_PERL_MANPAGE(conf, msg=None, section=None):
 362     '''work out what extension perl uses for manpages'''
 363
 364     if msg is None:
 365         if section:
 366             msg = "perl man%s extension" % section
 367         else:
 368             msg = "perl manpage generation"
 369
 370     conf.start_msg(msg)
 371
 372     dir = find_config_dir(conf)
 373
 374     bdir = os.path.join(dir, 'testbuild')
 375     if not os.path.exists(bdir):
 376         os.makedirs(bdir)
 377
 378     Utils.writef(os.path.join(bdir, 'Makefile.PL'), """
 379 use ExtUtils::MakeMaker;
 380 WriteMakefile(
 381     'NAME'    => 'WafTest',
 382     'EXE_FILES' => [ 'WafTest' ]
 383 );
 384 """)
 385     back = os.path.abspath('.')
 386     os.chdir(bdir)
 387     proc = Utils.subprocess.Popen(['perl', 'Makefile.PL'],
 388                              stdout=Utils.subprocess.PIPE,
 389                              stderr=Utils.subprocess.PIPE)
 390     (out, err) = proc.communicate()
 391     os.chdir(back)
 392
 393     ret = (proc.returncode == 0)
 394     if not ret:
 395         conf.end_msg('not found', color='YELLOW')
 396         return
 397
 398     if section:
 399         man = Utils.readf(os.path.join(bdir,'Makefile'))
 400         m = re.search('MAN%sEXT\s+=\s+(\w+)' % section, man)
 401         if not m:
 402             conf.end_msg('not found', color='YELLOW')
 403             return
 404         ext = m.group(1)
 405         conf.end_msg(ext)
 406         return ext
 407
 408     conf.end_msg('ok')
 409     return True
 410
 411
 412 @conf
 413 def CHECK_COMMAND(conf, cmd, msg=None, define=None, on_target=True, boolean=False):
 414     '''run a command and return result'''
 415     if msg is None:
 416         msg = 'Checking %s' % ' '.join(cmd)
 417     conf.COMPOUND_START(msg)
 418     cmd = cmd[:]
 419     if on_target:
 420         cmd.extend(conf.SAMBA_CROSS_ARGS(msg=msg))
 421     try:
 422         ret = get_string(Utils.cmd_output(cmd))
 423     except:
 424         conf.COMPOUND_END(False)
 425         return False
 426     if boolean:
 427         conf.COMPOUND_END('ok')
 428         if define:
 429             conf.DEFINE(define, '1')
 430     else:
 431         ret = ret.strip()
 432         conf.COMPOUND_END(ret)
 433         if define:
 434             conf.DEFINE(define, ret, quote=True)
 435     return ret
 436
 437
 438 @conf
 439 def CHECK_UNAME(conf):
 440     '''setup SYSTEM_UNAME_* defines'''
 441     ret = True
 442     for v in "sysname machine release version".split():
 443         if not conf.CHECK_CODE('''
 444                                int printf(const char *format, ...);
 445                                struct utsname n;
 446                                if (uname(&n) == -1) return -1;
 447                                printf("%%s", n.%s);
 448                                ''' % v,
 449                                define='SYSTEM_UNAME_%s' % v.upper(),
 450                                execute=True,
 451                                define_ret=True,
 452                                quote=True,
 453                                headers='sys/utsname.h',
 454                                local_include=False,
 455                                msg="Checking uname %s type" % v):
 456             ret = False
 457     return ret
 458
 459 @conf
 460 def CHECK_INLINE(conf):
 461     '''check for the right value for inline'''
 462     conf.COMPOUND_START('Checking for inline')
 463     for i in ['inline', '__inline__', '__inline']:
 464         ret = conf.CHECK_CODE('''
 465         typedef int foo_t;
 466         static %s foo_t static_foo () {return 0; }
 467         %s foo_t foo () {return 0; }\n''' % (i, i),
 468                               define='INLINE_MACRO',
 469                               addmain=False,
 470                               link=False)
 471         if ret:
 472             if i != 'inline':
 473                 conf.DEFINE('inline', i, quote=False)
 474             break
 475     if not ret:
 476         conf.COMPOUND_END(ret)
 477     else:
 478         conf.COMPOUND_END(i)
 479     return ret
 480
 481 @conf
 482 def CHECK_XSLTPROC_MANPAGES(conf):
 483     '''check if xsltproc can run with the given stylesheets'''
 484
 485
 486     if not conf.CONFIG_SET('XSLTPROC'):
 487         conf.find_program('xsltproc', var='XSLTPROC')
 488     if not conf.CONFIG_SET('XSLTPROC'):
 489         return False
 490
 491     s='http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl'
 492     conf.CHECK_COMMAND('%s --nonet %s 2> /dev/null' % (conf.env.get_flat('XSLTPROC'), s),
 493                              msg='Checking for stylesheet %s' % s,
 494                              define='XSLTPROC_MANPAGES', on_target=False,
 495                              boolean=True)
 496     if not conf.CONFIG_SET('XSLTPROC_MANPAGES'):
 497         print("A local copy of the docbook.xsl wasn't found on your system" \
 498               " consider installing package like docbook-xsl")
 499
 500 #
 501 # Determine the standard libpath for the used compiler,
 502 # so we can later use that to filter out these standard
 503 # library paths when some tools like cups-config or
 504 # python-config report standard lib paths with their
 505 # ldflags (-L...)
 506 #
 507 @conf
 508 def CHECK_STANDARD_LIBPATH(conf):
 509     # at least gcc and clang support this:
 510     try:
 511         cmd = conf.env.CC + ['-print-search-dirs']
 512         out = get_string(Utils.cmd_output(cmd)).split('\n')
 513     except ValueError:
 514         # option not supported by compiler - use a standard list of directories
 515         dirlist = [ '/usr/lib', '/usr/lib64' ]
 516     except:
 517         raise Errors.WafError('Unexpected error running "%s"' % (cmd))
 518     else:
 519         dirlist = []
 520         for line in out:
 521             line = line.strip()
 522             if line.startswith("libraries: ="):
 523                 dirliststr = line[len("libraries: ="):]
 524                 dirlist = [ os.path.normpath(x) for x in dirliststr.split(':') ]
 525                 break
 526
 527     conf.env.STANDARD_LIBPATH = dirlist
 528