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14feb93d48
Backtraces when Samba is in PANIC state are better with backtrace_symbols() than with libunwind on Ubuntu 20.04 x86_64 so move libunwind to a off-by-default option, prompted for if backtrace_symbols() is not available. Based on a request by Fco Javier Felix <ffelix@inode64.com> Signed-off-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
178 lines
6.9 KiB
Python
178 lines
6.9 KiB
Python
#!/usr/bin/env python
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from waflib import Logs, Options, Errors
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import os, sys
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if Options.options.disable_fault_handling:
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conf.DEFINE('HAVE_DISABLE_FAULT_HANDLING',1)
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# backtrace could be in libexecinfo or in libc.
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# This is our preferred backtrace handler (more useful output than libunwind as at Ubuntu 20.04 x86_64)
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conf.CHECK_FUNCS_IN('backtrace backtrace_symbols', 'execinfo', checklibc=True, headers='execinfo.h')
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conf.CHECK_HEADERS('execinfo.h')
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conf.SET_TARGET_TYPE('LIBUNWIND', 'EMPTY')
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if Options.options.with_libunwind:
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if conf.check_cfg(package='libunwind-generic',
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args='--cflags --libs',
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msg='Checking for libunwind',
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uselib_store='LIBUNWIND',
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mandatory=False):
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if conf.CHECK_HEADERS('libunwind.h'):
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conf.SET_TARGET_TYPE('LIBUNWIND', 'SYSLIB')
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else:
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raise Errors.WafError('--with-libunwind specified but libunwind not found')
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elif Options.options.with_libunwind == None:
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if not conf.CONFIG_SET('HAVE_BACKTRACE_SYMBOLS') \
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and not Options.options.disable_fault_handling:
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raise Errors.WafError(
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'''backtrace_symbols() not found but
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--with-libunwind not specified.
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Use --without-libunwind to build without internal backtrace support or
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--disable-fault-handling to totally defer fault handling to the OS.''')
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conf.CHECK_STRUCTURE_MEMBER('struct statvfs', 'f_frsize', define='HAVE_FRSIZE', headers='sys/statvfs.h')
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# all the different ways of doing statfs
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statfs_types = [
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( 'STAT_STATVFS',
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'statvfs (SVR4)',
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'struct statvfs fsd; exit(statvfs(0, &fsd))',
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'sys/statvfs.h' ),
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( 'STAT_STATFS3_OSF1',
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'3-argument statfs function (DEC OSF/1)',
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'struct statfs fsd; fsd.f_fsize = 0; exit(statfs(".", &fsd, sizeof(struct statfs)))',
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'sys/param.h sys/mount.h' ),
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( 'STAT_STATFS2_BSIZE',
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'two-argument statfs with statfs.bsize',
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'struct statfs fsd; fsd.f_bsize = 0; exit(statfs(".", &fsd))',
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'sys/param.h sys/mount.h sys/vfs.h' ),
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( 'STAT_STATFS4',
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'four-argument statfs (AIX-3.2.5, SVR3)',
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'struct statfs fsd; exit(statfs(".", &fsd, sizeof fsd, 0))',
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'sys/statfs.h' ),
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( 'STAT_STATFS2_FSIZE',
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'two-argument statfs with statfs.fsize',
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'struct statfs fsd; fsd.f_fsize = 0; exit(statfs(".", &fsd))',
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'sys/param.h sys/mount.h' ),
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( 'STAT_STATFS2_FS_DATA',
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'two-argument statfs with struct fs_data (Ultrix)',
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'struct fs_data fsd; exit(statfs(".", &fsd) != 1)',
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'sys/param.h sys/mount.h sys/fs_types.h' )
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]
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found_statfs=False
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for (define, msg, code, headers) in statfs_types:
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if conf.CHECK_CODE(code,
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define=define,
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headers=headers,
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msg='Checking for %s' % msg,
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local_include=False):
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found_statfs=True
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break
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if not found_statfs:
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print("FATAL: Failed to find a statfs method")
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raise
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conf.CHECK_CODE("""struct statfs fsd;
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fsd.f_bsize = 0;
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fsd.f_iosize = 0;
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return (statfs (".", &fsd));
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""",
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headers='sys/param.h sys/mount.h sys/vfs.h',
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define='BSD_STYLE_STATVFS',
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msg='Checking for *bsd style statfs with statfs.f_iosize',
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execute=True,
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local_include=False)
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conf.CHECK_CODE('struct statvfs buf; buf.f_fsid = 0',
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define='HAVE_FSID_INT',
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msg='Checking if f_fsid is an integer',
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execute=False,
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local_include=False,
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headers='sys/statvfs.h')
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# fsusage.c assumes that statvfs has an f_frsize entry. Some weird
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# systems use f_bsize.
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conf.CHECK_CODE('struct statvfs buf; buf.f_frsize = 0',
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define='HAVE_FRSIZE',
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msg='Checking that statvfs.f_frsize works',
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headers='sys/statvfs.h',
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execute=False,
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local_include=False)
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# Some systems use f_flag in struct statvfs while others use f_flags
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conf.CHECK_CODE('struct statvfs buf; buf.f_flag = 0',
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define='HAVE_STATVFS_F_FLAG',
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msg='Checking whether statvfs.f_flag exists',
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headers='sys/statvfs.h',
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local_include=False,
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execute=False)
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conf.CHECK_CODE('struct statvfs buf; buf.f_flags = 0',
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define='HAVE_STATVFS_F_FLAGS',
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msg='Checking whether statvfs.f_flags exists',
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headers='sys/statvfs.h',
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local_include=False,
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execute=False)
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#
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# systemd removed the libsystemd-daemon and libsystemd-journal libraries. In newer
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# versions it is only libsystemd. As waf pkg-config handling does not provide
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# targets which could be used as a dependency based on the package name we need
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# to look for them on our own. This enabled one of the library targets based on
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# which version we detect.
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#
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conf.SET_TARGET_TYPE('systemd-daemon', 'EMPTY')
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conf.SET_TARGET_TYPE('systemd-journal', 'EMPTY')
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conf.SET_TARGET_TYPE('systemd', 'EMPTY')
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if Options.options.enable_systemd != False:
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r_daemon = conf.CHECK_CFG(package='libsystemd-daemon', args='--cflags --libs',
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msg='Checking for libsystemd-daemon')
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r_journal = conf.CHECK_CFG(package='libsystemd-journal', args='--cflags --libs',
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msg='Checking for libsystemd-journal')
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if r_daemon is None and r_journal is None:
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conf.CHECK_CFG(package='libsystemd', args='--cflags --libs',
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msg='Checking for libsystemd')
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conf.CHECK_LIB('systemd', shlib=True)
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else:
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conf.CHECK_LIB('systemd-daemon', shlib=True)
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conf.CHECK_LIB('systemd-journal', shlib=True)
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conf.SET_TARGET_TYPE('lttng-ust', 'EMPTY')
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if Options.options.enable_lttng != False:
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conf.CHECK_CFG(package='lttng-ust', args='--cflags --libs',
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msg='Checking for lttng-ust', uselib_store="LTTNG-UST")
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conf.CHECK_HEADERS('lttng/tracef.h', lib='lttng-st')
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conf.CHECK_LIB('lttng-ust', shlib=True)
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if (conf.CONFIG_SET('HAVE_LTTNG_TRACEF_H') and
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conf.CONFIG_SET('HAVE_LTTNG_UST')):
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conf.DEFINE('HAVE_LTTNG_TRACEF', '1')
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conf.env['HAVE_LTTNG_TRACEF'] = True
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if Options.options.gpfs_headers_dir:
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conf.env['CPPPATH_GPFS'] = Options.options.gpfs_headers_dir
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if conf.CHECK_HEADERS('gpfs.h', False, False, "gpfs"):
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Logs.info('Using gpfs.h from %s' % Options.options.gpfs_headers_dir)
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conf.DEFINE('HAVE_GPFS', '1')
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else:
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conf.env['CPPPATH_GPFS'] = "/usr/lpp/mmfs/include/"
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if conf.CHECK_HEADERS('gpfs.h', False, False, "gpfs"):
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Logs.info('Using gpfs.h from installed gpfs package.')
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conf.DEFINE('HAVE_GPFS', '1')
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else:
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if sys.platform.startswith('linux'):
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conf.env['CPPPATH_GPFS'] = os.path.abspath("third_party/gpfs")
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if conf.CHECK_HEADERS('gpfs.h', False, False, "gpfs"):
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Logs.info('Using gpfs.h from third_party directory.')
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conf.DEFINE('HAVE_GPFS', '1')
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