1 files changed, 177 insertions, 0 deletions
diff --git a/lib/util/wscript_configure b/lib/util/wscript_configure
new file mode 100644
index 0000000..fbaeb09
--- /dev/null
+++ b/lib/util/wscript_configure
@@ -0,0 +1,177 @@
+#!/usr/bin/env python
+from waflib import Logs, Options, Errors
+
+import os, sys
+
+if Options.options.disable_fault_handling:
+    conf.DEFINE('HAVE_DISABLE_FAULT_HANDLING',1)
+
+# backtrace could be in libexecinfo or in libc.
+# This is our preferred backtrace handler (more useful output than libunwind as at Ubuntu 20.04 x86_64)
+conf.CHECK_FUNCS_IN('backtrace backtrace_symbols', 'execinfo', checklibc=True, headers='execinfo.h')
+conf.CHECK_HEADERS('execinfo.h')
+
+conf.SET_TARGET_TYPE('LIBUNWIND', 'EMPTY')
+if Options.options.with_libunwind:
+    if conf.check_cfg(package='libunwind-generic',
+                      args='--cflags --libs',
+                      msg='Checking for libunwind',
+                      uselib_store='LIBUNWIND',
+                      mandatory=False):
+        if conf.CHECK_HEADERS('libunwind.h'):
+            conf.SET_TARGET_TYPE('LIBUNWIND', 'SYSLIB')
+    else:
+        raise Errors.WafError('--with-libunwind specified but libunwind not found')
+elif Options.options.with_libunwind == None:
+    if not conf.CONFIG_SET('HAVE_BACKTRACE_SYMBOLS') \
+       and not Options.options.disable_fault_handling:
+        raise Errors.WafError(
+'''backtrace_symbols() not found but
+--with-libunwind not specified.
+Use --without-libunwind to build without internal backtrace support or
+--disable-fault-handling to totally defer fault handling to the OS.''')
+
+conf.CHECK_STRUCTURE_MEMBER('struct statvfs', 'f_frsize', define='HAVE_FRSIZE', headers='sys/statvfs.h')
+
+# all the different ways of doing statfs
+statfs_types = [
+    ( 'STAT_STATVFS',
+      'statvfs (SVR4)',
+      'struct statvfs fsd; exit(statvfs(0, &fsd))',
+      'sys/statvfs.h' ),
+
+    ( 'STAT_STATFS3_OSF1',
+      '3-argument statfs function (DEC OSF/1)',
+      'struct statfs fsd; fsd.f_fsize = 0; exit(statfs(".", &fsd, sizeof(struct statfs)))',
+      'sys/param.h sys/mount.h' ),
+
+    ( 'STAT_STATFS2_BSIZE',
+      'two-argument statfs with statfs.bsize',
+      'struct statfs fsd; fsd.f_bsize = 0; exit(statfs(".", &fsd))',
+      'sys/param.h sys/mount.h  sys/vfs.h' ),
+
+    ( 'STAT_STATFS4',
+      'four-argument statfs  (AIX-3.2.5, SVR3)',
+      'struct statfs fsd; exit(statfs(".", &fsd, sizeof fsd, 0))',
+      'sys/statfs.h' ),
+
+    ( 'STAT_STATFS2_FSIZE',
+      'two-argument statfs with statfs.fsize',
+      'struct statfs fsd; fsd.f_fsize = 0; exit(statfs(".", &fsd))',
+      'sys/param.h sys/mount.h' ),
+
+    ( 'STAT_STATFS2_FS_DATA',
+      'two-argument statfs with struct fs_data (Ultrix)',
+      'struct fs_data fsd; exit(statfs(".", &fsd) != 1)',
+      'sys/param.h sys/mount.h sys/fs_types.h' )
+]
+
+found_statfs=False
+for (define, msg, code, headers) in statfs_types:
+    if conf.CHECK_CODE(code,
+                       define=define,
+                       headers=headers,
+                       msg='Checking for %s' % msg,
+                       local_include=False):
+        found_statfs=True
+        break
+
+if not found_statfs:
+    print("FATAL: Failed to find a statfs method")
+    raise
+
+conf.CHECK_CODE("""struct statfs fsd;
+		fsd.f_bsize = 0;
+		fsd.f_iosize = 0;
+		return (statfs (".", &fsd));
+		""",
+                headers='sys/param.h sys/mount.h sys/vfs.h',
+                define='BSD_STYLE_STATVFS',
+                msg='Checking for *bsd style statfs with statfs.f_iosize',
+                execute=True,
+                local_include=False)
+
+conf.CHECK_CODE('struct statvfs buf; buf.f_fsid = 0',
+                define='HAVE_FSID_INT',
+                msg='Checking if f_fsid is an integer',
+                execute=False,
+                local_include=False,
+                headers='sys/statvfs.h')
+
+# fsusage.c assumes that statvfs has an f_frsize entry. Some weird
+# systems use f_bsize.
+conf.CHECK_CODE('struct statvfs buf; buf.f_frsize = 0',
+                define='HAVE_FRSIZE',
+                msg='Checking that statvfs.f_frsize works',
+                headers='sys/statvfs.h',
+                execute=False,
+                local_include=False)
+
+# Some systems use f_flag in struct statvfs while others use f_flags
+conf.CHECK_CODE('struct statvfs buf; buf.f_flag = 0',
+                define='HAVE_STATVFS_F_FLAG',
+                msg='Checking whether statvfs.f_flag exists',
+                headers='sys/statvfs.h',
+                local_include=False,
+                execute=False)
+
+conf.CHECK_CODE('struct statvfs buf; buf.f_flags = 0',
+                define='HAVE_STATVFS_F_FLAGS',
+                msg='Checking whether statvfs.f_flags exists',
+                headers='sys/statvfs.h',
+                local_include=False,
+                execute=False)
+
+#
+# systemd removed the libsystemd-daemon and libsystemd-journal libraries. In newer
+# versions it is only libsystemd. As waf pkg-config handling does not provide
+# targets which could be used as a dependency based on the package name we need
+# to look for them on our own. This enabled one of the library targets based on
+# which version we detect.
+#
+conf.SET_TARGET_TYPE('systemd-daemon', 'EMPTY')
+conf.SET_TARGET_TYPE('systemd-journal', 'EMPTY')
+conf.SET_TARGET_TYPE('systemd', 'EMPTY')
+
+if Options.options.enable_systemd != False:
+    r_daemon = conf.CHECK_CFG(package='libsystemd-daemon', args='--cflags --libs',
+                   msg='Checking for libsystemd-daemon')
+    r_journal = conf.CHECK_CFG(package='libsystemd-journal', args='--cflags --libs',
+                   msg='Checking for libsystemd-journal')
+    if r_daemon is None and r_journal is None:
+        conf.CHECK_CFG(package='libsystemd', args='--cflags --libs',
+                   msg='Checking for libsystemd')
+        conf.CHECK_LIB('systemd', shlib=True)
+    else:
+        conf.CHECK_LIB('systemd-daemon', shlib=True)
+        conf.CHECK_LIB('systemd-journal', shlib=True)
+
+conf.SET_TARGET_TYPE('lttng-ust', 'EMPTY')
+
+if Options.options.enable_lttng != False:
+    conf.CHECK_CFG(package='lttng-ust', args='--cflags --libs',
+                   msg='Checking for lttng-ust', uselib_store="LTTNG-UST")
+    conf.CHECK_HEADERS('lttng/tracef.h', lib='lttng-st')
+    conf.CHECK_LIB('lttng-ust', shlib=True)
+
+if (conf.CONFIG_SET('HAVE_LTTNG_TRACEF_H') and
+    conf.CONFIG_SET('HAVE_LTTNG_UST')):
+    conf.DEFINE('HAVE_LTTNG_TRACEF', '1')
+    conf.env['HAVE_LTTNG_TRACEF'] = True
+
+if Options.options.gpfs_headers_dir:
+    conf.env['CPPPATH_GPFS'] = Options.options.gpfs_headers_dir
+    if conf.CHECK_HEADERS('gpfs.h', False, False, "gpfs"):
+        Logs.info('Using gpfs.h from %s' % Options.options.gpfs_headers_dir)
+        conf.DEFINE('HAVE_GPFS', '1')
+else:
+    conf.env['CPPPATH_GPFS'] = "/usr/lpp/mmfs/include/"
+    if conf.CHECK_HEADERS('gpfs.h', False, False, "gpfs"):
+        Logs.info('Using gpfs.h from installed gpfs package.')
+        conf.DEFINE('HAVE_GPFS', '1')
+    else:
+        if sys.platform.startswith('linux'):
+            conf.env['CPPPATH_GPFS'] = os.path.abspath("third_party/gpfs")
+            if conf.CHECK_HEADERS('gpfs.h', False, False, "gpfs"):
+                Logs.info('Using gpfs.h from third_party directory.')
+                conf.DEFINE('HAVE_GPFS', '1')