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 succeeds 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, lib=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                            lib=lib)
 143
 144
 145 @conf
 146 def CHECK_CHARSET_EXISTS(conf, charset, outcharset='UCS-2LE', headers=None, define=None):
 147     '''check that a named charset is able to be used with iconv_open() for conversion
 148     to a target charset
 149     '''
 150     msg = 'Checking if can we convert from %s to %s' % (charset, outcharset)
 151     if define is None:
 152         define = 'HAVE_CHARSET_%s' % charset.upper().replace('-','_')
 153     return conf.CHECK_CODE('''
 154                            iconv_t cd = iconv_open("%s", "%s");
 155                            if (cd == 0 || cd == (iconv_t)-1) return -1;
 156                            ''' % (charset, outcharset),
 157                            define=define,
 158                            execute=True,
 159                            msg=msg,
 160                            lib='iconv',
 161                            headers=headers)
 162
 163 def find_config_dir(conf):
 164     '''find a directory to run tests in'''
 165     k = 0
 166     while k < 10000:
 167         dir = os.path.join(conf.bldnode.abspath(), '.conf_check_%d' % k)
 168         try:
 169             shutil.rmtree(dir)
 170         except OSError:
 171             pass
 172         try:
 173             os.stat(dir)
 174         except:
 175             break
 176         k += 1
 177
 178     try:
 179         os.makedirs(dir)
 180     except:
 181         conf.fatal('cannot create a configuration test folder %r' % dir)
 182
 183     try:
 184         os.stat(dir)
 185     except:
 186         conf.fatal('cannot use the configuration test folder %r' % dir)
 187     return dir
 188
 189 @conf
 190 def CHECK_SHLIB_INTRASINC_NAME_FLAGS(conf, msg):
 191     '''
 192         check if the waf default flags for setting the name of lib
 193         are ok
 194     '''
 195
 196     snip = '''
 197 int foo(int v) {
 198     return v * 2;
 199 }
 200 '''
 201     return conf.check(features='c cshlib',vnum="1",fragment=snip,msg=msg, mandatory=False)
 202
 203 @conf
 204 def CHECK_NEED_LC(conf, msg):
 205     '''check if we need -lc'''
 206
 207     dir = find_config_dir(conf)
 208
 209     env = conf.env
 210
 211     bdir = os.path.join(dir, 'testbuild2')
 212     if not os.path.exists(bdir):
 213         os.makedirs(bdir)
 214
 215
 216     subdir = os.path.join(dir, "liblctest")
 217
 218     os.makedirs(subdir)
 219
 220     Utils.writef(os.path.join(subdir, 'liblc1.c'), '#include <stdio.h>\nint lib_func(void) { FILE *f = fopen("foo", "r");}\n')
 221
 222     bld = Build.BuildContext()
 223     bld.log = conf.log
 224     bld.all_envs.update(conf.all_envs)
 225     bld.all_envs['default'] = env
 226     bld.lst_variants = bld.all_envs.keys()
 227     bld.load_dirs(dir, bdir)
 228
 229     bld.rescan(bld.srcnode)
 230
 231     bld(features='c cshlib',
 232         source='liblctest/liblc1.c',
 233         ldflags=conf.env['EXTRA_LDFLAGS'],
 234         target='liblc',
 235         name='liblc')
 236
 237     try:
 238         bld.compile()
 239         conf.check_message(msg, '', True)
 240         return True
 241     except:
 242         conf.check_message(msg, '', False)
 243         return False
 244
 245
 246 @conf
 247 def CHECK_SHLIB_W_PYTHON(conf, msg):
 248     '''check if we need -undefined dynamic_lookup'''
 249
 250     dir = find_config_dir(conf)
 251     snip = '''
 252 #include <Python.h>
 253 #include <crt_externs.h>
 254 #define environ (*_NSGetEnviron())
 255
 256 static PyObject *ldb_module = NULL;
 257 int foo(int v) {
 258     extern char **environ;
 259     environ[0] = 1;
 260     ldb_module = PyImport_ImportModule("ldb");
 261     return v * 2;
 262 }
 263 '''
 264     return conf.check(features='c cshlib',uselib='PYEMBED',fragment=snip,msg=msg, mandatory=False)
 265
 266 # this one is quite complex, and should probably be broken up
 267 # into several parts. I'd quite like to create a set of CHECK_COMPOUND()
 268 # functions that make writing complex compound tests like this much easier
 269 @conf
 270 def CHECK_LIBRARY_SUPPORT(conf, rpath=False, version_script=False, msg=None):
 271     '''see if the platform supports building libraries'''
 272
 273     if msg is None:
 274         if rpath:
 275             msg = "rpath library support"
 276         else:
 277             msg = "building library support"
 278
 279     dir = find_config_dir(conf)
 280
 281     bdir = os.path.join(dir, 'testbuild')
 282     if not os.path.exists(bdir):
 283         os.makedirs(bdir)
 284
 285     env = conf.env
 286
 287     subdir = os.path.join(dir, "libdir")
 288
 289     os.makedirs(subdir)
 290
 291     Utils.writef(os.path.join(subdir, 'lib1.c'), 'int lib_func(void) { return 42; }\n')
 292     Utils.writef(os.path.join(dir, 'main.c'),
 293                  'int lib_func(void);\n'
 294                  'int main(void) {return !(lib_func() == 42);}\n')
 295
 296     bld = Build.BuildContext()
 297     bld.log = conf.log
 298     bld.all_envs.update(conf.all_envs)
 299     bld.all_envs['default'] = env
 300     bld.lst_variants = bld.all_envs.keys()
 301     bld.load_dirs(dir, bdir)
 302
 303     bld.rescan(bld.srcnode)
 304
 305     ldflags = []
 306     if version_script:
 307         ldflags.append("-Wl,--version-script=%s/vscript" % bld.path.abspath())
 308         Utils.writef(os.path.join(dir,'vscript'), 'TEST_1.0A2 { global: *; };\n')
 309
 310     bld(features='c cshlib',
 311         source='libdir/lib1.c',
 312         target='libdir/lib1',
 313         ldflags=ldflags,
 314         name='lib1')
 315
 316     o = bld(features='c cprogram',
 317             source='main.c',
 318             target='prog1',
 319             uselib_local='lib1')
 320
 321     if rpath:
 322         o.rpath=os.path.join(bdir, 'default/libdir')
 323
 324     # compile the program
 325     try:
 326         bld.compile()
 327     except:
 328         conf.check_message(msg, '', False)
 329         return False
 330
 331     # path for execution
 332     lastprog = o.link_task.outputs[0].abspath(env)
 333
 334     if not rpath:
 335         if 'LD_LIBRARY_PATH' in os.environ:
 336             old_ld_library_path = os.environ['LD_LIBRARY_PATH']
 337         else:
 338             old_ld_library_path = None
 339         ADD_LD_LIBRARY_PATH(os.path.join(bdir, 'default/libdir'))
 340
 341     # we need to run the program, try to get its result
 342     args = conf.SAMBA_CROSS_ARGS(msg=msg)
 343     proc = Utils.subprocess.Popen([lastprog] + args,
 344             stdout=Utils.subprocess.PIPE, stderr=Utils.subprocess.PIPE)
 345     (out, err) = proc.communicate()
 346     w = conf.log.write
 347     w(str(out))
 348     w('\n')
 349     w(str(err))
 350     w('\nreturncode %r\n' % proc.returncode)
 351     ret = (proc.returncode == 0)
 352
 353     if not rpath:
 354         os.environ['LD_LIBRARY_PATH'] = old_ld_library_path or ''
 355
 356     conf.check_message(msg, '', ret)
 357     return ret
 358
 359
 360
 361 @conf
 362 def CHECK_PERL_MANPAGE(conf, msg=None, section=None):
 363     '''work out what extension perl uses for manpages'''
 364
 365     if msg is None:
 366         if section:
 367             msg = "perl man%s extension" % section
 368         else:
 369             msg = "perl manpage generation"
 370
 371     conf.start_msg(msg)
 372
 373     dir = find_config_dir(conf)
 374
 375     bdir = os.path.join(dir, 'testbuild')
 376     if not os.path.exists(bdir):
 377         os.makedirs(bdir)
 378
 379     Utils.writef(os.path.join(bdir, 'Makefile.PL'), """
 380 use ExtUtils::MakeMaker;
 381 WriteMakefile(
 382     'NAME'    => 'WafTest',
 383     'EXE_FILES' => [ 'WafTest' ]
 384 );
 385 """)
 386     back = os.path.abspath('.')
 387     os.chdir(bdir)
 388     proc = Utils.subprocess.Popen(['perl', 'Makefile.PL'],
 389                              stdout=Utils.subprocess.PIPE,
 390                              stderr=Utils.subprocess.PIPE)
 391     (out, err) = proc.communicate()
 392     os.chdir(back)
 393
 394     ret = (proc.returncode == 0)
 395     if not ret:
 396         conf.end_msg('not found', color='YELLOW')
 397         return
 398
 399     if section:
 400         man = Utils.readf(os.path.join(bdir,'Makefile'))
 401         m = re.search(r'MAN%sEXT\s+=\s+(\w+)' % section, man)
 402         if not m:
 403             conf.end_msg('not found', color='YELLOW')
 404             return
 405         ext = m.group(1)
 406         conf.end_msg(ext)
 407         return ext
 408
 409     conf.end_msg('ok')
 410     return True
 411
 412
 413 @conf
 414 def CHECK_COMMAND(conf, cmd, msg=None, define=None, on_target=True, boolean=False):
 415     '''run a command and return result'''
 416     if msg is None:
 417         msg = 'Checking %s' % ' '.join(cmd)
 418     conf.COMPOUND_START(msg)
 419     cmd = cmd[:]
 420     if on_target:
 421         cmd.extend(conf.SAMBA_CROSS_ARGS(msg=msg))
 422     try:
 423         ret = get_string(Utils.cmd_output(cmd))
 424     except:
 425         conf.COMPOUND_END(False)
 426         return False
 427     if boolean:
 428         conf.COMPOUND_END('ok')
 429         if define:
 430             conf.DEFINE(define, '1')
 431     else:
 432         ret = ret.strip()
 433         conf.COMPOUND_END(ret)
 434         if define:
 435             conf.DEFINE(define, ret, quote=True)
 436     return ret
 437
 438
 439 @conf
 440 def CHECK_UNAME(conf):
 441     '''setup SYSTEM_UNAME_* defines'''
 442     ret = True
 443     for v in "sysname machine release version".split():
 444         if not conf.CHECK_CODE('''
 445                                int printf(const char *format, ...);
 446                                struct utsname n;
 447                                if (uname(&n) == -1) return -1;
 448                                printf("%%s", n.%s);
 449                                ''' % v,
 450                                define='SYSTEM_UNAME_%s' % v.upper(),
 451                                execute=True,
 452                                define_ret=True,
 453                                quote=True,
 454                                headers='sys/utsname.h',
 455                                local_include=False,
 456                                msg="Checking uname %s type" % v):
 457             ret = False
 458     return ret
 459
 460 @conf
 461 def CHECK_INLINE(conf):
 462     '''check for the right value for inline'''
 463     conf.COMPOUND_START('Checking for inline')
 464     for i in ['inline', '__inline__', '__inline']:
 465         ret = conf.CHECK_CODE('''
 466         typedef int foo_t;
 467         static %s foo_t static_foo () {return 0; }
 468         %s foo_t foo () {return 0; }\n''' % (i, i),
 469                               define='INLINE_MACRO',
 470                               addmain=False,
 471                               link=False)
 472         if ret:
 473             if i != 'inline':
 474                 conf.DEFINE('inline', i, quote=False)
 475             break
 476     if not ret:
 477         conf.COMPOUND_END(ret)
 478     else:
 479         conf.COMPOUND_END(i)
 480     return ret
 481
 482 @conf
 483 def CHECK_XSLTPROC_MANPAGES(conf):
 484     '''check if xsltproc can run with the given stylesheets'''
 485
 486
 487     if not conf.CONFIG_SET('XSLTPROC'):
 488         conf.find_program('xsltproc', var='XSLTPROC')
 489     if not conf.CONFIG_SET('XSLTPROC'):
 490         return False
 491
 492     s='http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl'
 493     conf.CHECK_COMMAND('%s --nonet %s 2> /dev/null' % (conf.env.get_flat('XSLTPROC'), s),
 494                              msg='Checking for stylesheet %s' % s,
 495                              define='XSLTPROC_MANPAGES', on_target=False,
 496                              boolean=True)
 497     if not conf.CONFIG_SET('XSLTPROC_MANPAGES'):
 498         print("A local copy of the docbook.xsl wasn't found on your system" \
 499               " consider installing package like docbook-xsl")
 500
 501 #
 502 # Determine the standard libpath for the used compiler,
 503 # so we can later use that to filter out these standard
 504 # library paths when some tools like cups-config or
 505 # python-config report standard lib paths with their
 506 # ldflags (-L...)
 507 #
 508 @conf
 509 def CHECK_STANDARD_LIBPATH(conf):
 510     # at least gcc and clang support this:
 511     try:
 512         cmd = conf.env.CC + ['-print-search-dirs']
 513         out = get_string(Utils.cmd_output(cmd)).split('\n')
 514     except ValueError:
 515         # option not supported by compiler - use a standard list of directories
 516         dirlist = [ '/usr/lib', '/usr/lib64' ]
 517     except:
 518         raise Errors.WafError('Unexpected error running "%s"' % (cmd))
 519     else:
 520         dirlist = []
 521         for line in out:
 522             line = line.strip()
 523             if line.startswith("libraries: ="):
 524                 dirliststr = line[len("libraries: ="):]
 525                 dirlist = [ os.path.normpath(x) for x in dirliststr.split(':') ]
 526                 break
 527
 528     conf.env.STANDARD_LIBPATH = dirlist
 529