lib/util/wscript_configure

   1 #!/usr/bin/env python
   2 from waflib import Logs, Options, Errors
   3
   4 import os, sys
   5
   6 if Options.options.disable_fault_handling:
   7     conf.DEFINE('HAVE_DISABLE_FAULT_HANDLING',1)
   8
   9 # backtrace could be in libexecinfo or in libc.
  10 # This is our preferred backtrace handler (more useful output than libunwind as at Ubuntu 20.04 x86_64)
  11 conf.CHECK_FUNCS_IN('backtrace backtrace_symbols', 'execinfo', checklibc=True, headers='execinfo.h')
  12 conf.CHECK_HEADERS('execinfo.h')
  13
  14 conf.SET_TARGET_TYPE('LIBUNWIND', 'EMPTY')
  15 if Options.options.with_libunwind:
  16     if conf.check_cfg(package='libunwind-generic',
  17                       args='--cflags --libs',
  18                       msg='Checking for libunwind',
  19                       uselib_store='LIBUNWIND',
  20                       mandatory=False):
  21         if conf.CHECK_HEADERS('libunwind.h'):
  22             conf.SET_TARGET_TYPE('LIBUNWIND', 'SYSLIB')
  23     else:
  24         raise Errors.WafError('--with-libunwind specified but libunwind not found')
  25 elif Options.options.with_libunwind == None:
  26     if not conf.CONFIG_SET('HAVE_BACKTRACE_SYMBOLS') \
  27        and not Options.options.disable_fault_handling:
  28         raise Errors.WafError(
  29 '''backtrace_symbols() not found but
  30 --with-libunwind not specified.
  31 Use --without-libunwind to build without internal backtrace support or
  32 --disable-fault-handling to totally defer fault handling to the OS.''')
  33
  34 conf.CHECK_STRUCTURE_MEMBER('struct statvfs', 'f_frsize', define='HAVE_FRSIZE', headers='sys/statvfs.h')
  35
  36 # all the different ways of doing statfs
  37 statfs_types = [
  38     ( 'STAT_STATVFS',
  39       'statvfs (SVR4)',
  40       'struct statvfs fsd; exit(statvfs(0, &fsd))',
  41       'sys/statvfs.h' ),
  42
  43     ( 'STAT_STATFS3_OSF1',
  44       '3-argument statfs function (DEC OSF/1)',
  45       'struct statfs fsd; fsd.f_fsize = 0; exit(statfs(".", &fsd, sizeof(struct statfs)))',
  46       'sys/param.h sys/mount.h' ),
  47
  48     ( 'STAT_STATFS2_BSIZE',
  49       'two-argument statfs with statfs.bsize',
  50       'struct statfs fsd; fsd.f_bsize = 0; exit(statfs(".", &fsd))',
  51       'sys/param.h sys/mount.h  sys/vfs.h' ),
  52
  53     ( 'STAT_STATFS4',
  54       'four-argument statfs  (AIX-3.2.5, SVR3)',
  55       'struct statfs fsd; exit(statfs(".", &fsd, sizeof fsd, 0))',
  56       'sys/statfs.h' ),
  57
  58     ( 'STAT_STATFS2_FSIZE',
  59       'two-argument statfs with statfs.fsize',
  60       'struct statfs fsd; fsd.f_fsize = 0; exit(statfs(".", &fsd))',
  61       'sys/param.h sys/mount.h' ),
  62
  63     ( 'STAT_STATFS2_FS_DATA',
  64       'two-argument statfs with struct fs_data (Ultrix)',
  65       'struct fs_data fsd; exit(statfs(".", &fsd) != 1)',
  66       'sys/param.h sys/mount.h sys/fs_types.h' )
  67 ]
  68
  69 found_statfs=False
  70 for (define, msg, code, headers) in statfs_types:
  71     if conf.CHECK_CODE(code,
  72                        define=define,
  73                        headers=headers,
  74                        msg='Checking for %s' % msg,
  75                        local_include=False):
  76         found_statfs=True
  77         break
  78
  79 if not found_statfs:
  80     print("FATAL: Failed to find a statfs method")
  81     raise
  82
  83 conf.CHECK_CODE("""struct statfs fsd;
  84                 fsd.f_bsize = 0;
  85                 fsd.f_iosize = 0;
  86                 return (statfs (".", &fsd));
  87                 """,
  88                 headers='sys/param.h sys/mount.h sys/vfs.h',
  89                 define='BSD_STYLE_STATVFS',
  90                 msg='Checking for *bsd style statfs with statfs.f_iosize',
  91                 execute=True,
  92                 local_include=False)
  93
  94 conf.CHECK_CODE('struct statvfs buf; buf.f_fsid = 0',
  95                 define='HAVE_FSID_INT',
  96                 msg='Checking if f_fsid is an integer',
  97                 execute=False,
  98                 local_include=False,
  99                 headers='sys/statvfs.h')
 100
 101 # fsusage.c assumes that statvfs has an f_frsize entry. Some weird
 102 # systems use f_bsize.
 103 conf.CHECK_CODE('struct statvfs buf; buf.f_frsize = 0',
 104                 define='HAVE_FRSIZE',
 105                 msg='Checking that statvfs.f_frsize works',
 106                 headers='sys/statvfs.h',
 107                 execute=False,
 108                 local_include=False)
 109
 110 # Some systems use f_flag in struct statvfs while others use f_flags
 111 conf.CHECK_CODE('struct statvfs buf; buf.f_flag = 0',
 112                 define='HAVE_STATVFS_F_FLAG',
 113                 msg='Checking whether statvfs.f_flag exists',
 114                 headers='sys/statvfs.h',
 115                 local_include=False,
 116                 execute=False)
 117
 118 conf.CHECK_CODE('struct statvfs buf; buf.f_flags = 0',
 119                 define='HAVE_STATVFS_F_FLAGS',
 120                 msg='Checking whether statvfs.f_flags exists',
 121                 headers='sys/statvfs.h',
 122                 local_include=False,
 123                 execute=False)
 124
 125 # Check for mallinfo2() first and fallback to mallinfo() if not found
 126 body = '''mi.arena + mi.ordblks + mi.smblks + mi.hblks + mi.hblkhd +
 127     mi.usmblks + mi.fsmblks +  mi.uordblks + mi.fordblks + mi.keepcost'''
 128 if not conf.CHECK_CODE('''struct mallinfo2 mi = mallinfo2(); return %s;'''
 129                        % body, 'HAVE_MALLINFO2',
 130                        msg="Checking for mallinfo2()",
 131                        headers='malloc.h'):
 132     conf.CHECK_CODE('''struct mallinfo mi = mallinfo(); return %s;'''
 133                     % body, 'HAVE_MALLINFO',
 134                     msg="Checking for mallinfo()",
 135                     headers='malloc.h')
 136
 137 #
 138 # systemd removed the libsystemd-daemon and libsystemd-journal libraries. In newer
 139 # versions it is only libsystemd. As waf pkg-config handling does not provide
 140 # targets which could be used as a dependency based on the package name we need
 141 # to look for them on our own. This enabled one of the library targets based on
 142 # which version we detect.
 143 #
 144 conf.SET_TARGET_TYPE('systemd-daemon', 'EMPTY')
 145 conf.SET_TARGET_TYPE('systemd-journal', 'EMPTY')
 146 conf.SET_TARGET_TYPE('systemd', 'EMPTY')
 147
 148 if Options.options.enable_systemd != False:
 149     r_daemon = conf.CHECK_CFG(package='libsystemd-daemon', args='--cflags --libs',
 150                    msg='Checking for libsystemd-daemon')
 151     r_journal = conf.CHECK_CFG(package='libsystemd-journal', args='--cflags --libs',
 152                    msg='Checking for libsystemd-journal')
 153     if r_daemon is None and r_journal is None:
 154         conf.CHECK_CFG(package='libsystemd', args='--cflags --libs',
 155                    msg='Checking for libsystemd')
 156         conf.CHECK_LIB('systemd', shlib=True)
 157     else:
 158         conf.CHECK_LIB('systemd-daemon', shlib=True)
 159         conf.CHECK_LIB('systemd-journal', shlib=True)
 160
 161 conf.SET_TARGET_TYPE('lttng-ust', 'EMPTY')
 162
 163 if Options.options.enable_lttng != False:
 164     conf.CHECK_CFG(package='lttng-ust', args='--cflags --libs',
 165                    msg='Checking for lttng-ust', uselib_store="LTTNG-UST")
 166     conf.CHECK_HEADERS('lttng/tracef.h', lib='lttng-st')
 167     conf.CHECK_LIB('lttng-ust', shlib=True)
 168
 169 if (conf.CONFIG_SET('HAVE_LTTNG_TRACEF_H') and
 170     conf.CONFIG_SET('HAVE_LTTNG_UST')):
 171     conf.DEFINE('HAVE_LTTNG_TRACEF', '1')
 172     conf.env['HAVE_LTTNG_TRACEF'] = True
 173
 174 if Options.options.gpfs_headers_dir:
 175     conf.env['CPPPATH_GPFS'] = Options.options.gpfs_headers_dir
 176     if conf.CHECK_HEADERS('gpfs.h', False, False, "gpfs"):
 177         Logs.info('Using gpfs.h from %s' % Options.options.gpfs_headers_dir)
 178         conf.DEFINE('HAVE_GPFS', '1')
 179 else:
 180     conf.env['CPPPATH_GPFS'] = "/usr/lpp/mmfs/include/"
 181     if conf.CHECK_HEADERS('gpfs.h', False, False, "gpfs"):
 182         Logs.info('Using gpfs.h from installed gpfs package.')
 183         conf.DEFINE('HAVE_GPFS', '1')
 184     else:
 185         if sys.platform.startswith('linux'):
 186             conf.env['CPPPATH_GPFS'] = os.path.abspath("third_party/gpfs")
 187             if conf.CHECK_HEADERS('gpfs.h', False, False, "gpfs"):
 188                 Logs.info('Using gpfs.h from third_party directory.')
 189                 conf.DEFINE('HAVE_GPFS', '1')