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-rw-r--r--buildtools/wafsamba/samba_autoconf.py1001
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diff --git a/buildtools/wafsamba/samba_autoconf.py b/buildtools/wafsamba/samba_autoconf.py
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+++ b/buildtools/wafsamba/samba_autoconf.py
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+# a waf tool to add autoconf-like macros to the configure section
+
+import os, sys
+from waflib import Build, Options, Logs, Context
+from waflib.Configure import conf
+from waflib.TaskGen import feature
+from waflib.Tools import c_preproc as preproc
+from samba_utils import TO_LIST, GET_TARGET_TYPE, SET_TARGET_TYPE, unique_list, mkdir_p
+
+missing_headers = set()
+
+####################################################
+# some autoconf like helpers, to make the transition
+# to waf a bit easier for those used to autoconf
+# m4 files
+
+@conf
+def DEFINE(conf, d, v, add_to_cflags=False, quote=False):
+ '''define a config option'''
+ conf.define(d, v, quote=quote)
+ if add_to_cflags:
+ conf.env.append_value('CFLAGS', '-D%s=%s' % (d, str(v)))
+
+def hlist_to_string(conf, headers=None):
+ '''convert a headers list to a set of #include lines'''
+ hlist = conf.env.hlist
+ if headers:
+ hlist = hlist[:]
+ hlist.extend(TO_LIST(headers))
+ hdrs = "\n".join('#include <%s>' % h for h in hlist)
+
+ return hdrs
+
+
+@conf
+def COMPOUND_START(conf, msg):
+ '''start a compound test'''
+ def null_check_message_1(self,*k,**kw):
+ return
+ def null_check_message_2(self,*k,**kw):
+ return
+
+ v = getattr(conf.env, 'in_compound', [])
+ if v != [] and v != 0:
+ conf.env.in_compound = v + 1
+ return
+ conf.start_msg(msg)
+ conf.saved_check_message_1 = conf.start_msg
+ conf.start_msg = null_check_message_1
+ conf.saved_check_message_2 = conf.end_msg
+ conf.end_msg = null_check_message_2
+ conf.env.in_compound = 1
+
+
+@conf
+def COMPOUND_END(conf, result):
+ '''start a compound test'''
+ conf.env.in_compound -= 1
+ if conf.env.in_compound != 0:
+ return
+ conf.start_msg = conf.saved_check_message_1
+ conf.end_msg = conf.saved_check_message_2
+ p = conf.end_msg
+ if result is True:
+ p('ok')
+ elif not result:
+ p('not found', 'YELLOW')
+ else:
+ p(result)
+
+
+@feature('nolink')
+def nolink(self):
+ '''using the nolink type in conf.check() allows us to avoid
+ the link stage of a test, thus speeding it up for tests
+ that where linking is not needed'''
+ pass
+
+
+def CHECK_HEADER(conf, h, add_headers=False, lib=None):
+ '''check for a header'''
+ if h in missing_headers and lib is None:
+ return False
+ d = h.upper().replace('/', '_')
+ d = d.replace('.', '_')
+ d = d.replace('-', '_')
+ d = 'HAVE_%s' % d
+ if CONFIG_SET(conf, d):
+ if add_headers:
+ if not h in conf.env.hlist:
+ conf.env.hlist.append(h)
+ return True
+
+ (ccflags, ldflags, cpppath) = library_flags(conf, lib)
+
+ hdrs = hlist_to_string(conf, headers=h)
+ if lib is None:
+ lib = ""
+ ret = conf.check(fragment='%s\nint main(void) { return 0; }\n' % hdrs,
+ type='nolink',
+ execute=0,
+ cflags=ccflags,
+ mandatory=False,
+ includes=cpppath,
+ uselib=lib.upper(),
+ msg="Checking for header %s" % h)
+ if not ret:
+ missing_headers.add(h)
+ return False
+
+ conf.DEFINE(d, 1)
+ if add_headers and not h in conf.env.hlist:
+ conf.env.hlist.append(h)
+ return ret
+
+
+@conf
+def CHECK_HEADERS(conf, headers, add_headers=False, together=False, lib=None):
+ '''check for a list of headers
+
+ when together==True, then the headers accumulate within this test.
+ This is useful for interdependent headers
+ '''
+ ret = True
+ if not add_headers and together:
+ saved_hlist = conf.env.hlist[:]
+ set_add_headers = True
+ else:
+ set_add_headers = add_headers
+ for hdr in TO_LIST(headers):
+ if not CHECK_HEADER(conf, hdr, set_add_headers, lib=lib):
+ ret = False
+ if not add_headers and together:
+ conf.env.hlist = saved_hlist
+ return ret
+
+
+def header_list(conf, headers=None, lib=None):
+ '''form a list of headers which exist, as a string'''
+ hlist=[]
+ if headers is not None:
+ for h in TO_LIST(headers):
+ if CHECK_HEADER(conf, h, add_headers=False, lib=lib):
+ hlist.append(h)
+ return hlist_to_string(conf, headers=hlist)
+
+
+@conf
+def CHECK_TYPE(conf, t, alternate=None, headers=None, define=None, lib=None, msg=None, cflags=''):
+ '''check for a single type'''
+ if define is None:
+ define = 'HAVE_' + t.upper().replace(' ', '_')
+ if msg is None:
+ msg='Checking for %s' % t
+ ret = CHECK_CODE(conf, '%s _x' % t,
+ define,
+ execute=False,
+ headers=headers,
+ local_include=False,
+ msg=msg,
+ cflags=cflags,
+ lib=lib,
+ link=False)
+ if not ret and alternate:
+ conf.DEFINE(t, alternate)
+ return ret
+
+
+@conf
+def CHECK_TYPES(conf, list, headers=None, define=None, alternate=None, lib=None):
+ '''check for a list of types'''
+ ret = True
+ for t in TO_LIST(list):
+ if not CHECK_TYPE(conf, t, headers=headers,
+ define=define, alternate=alternate, lib=lib):
+ ret = False
+ return ret
+
+
+@conf
+def CHECK_TYPE_IN(conf, t, headers=None, alternate=None, define=None, cflags=''):
+ '''check for a single type with a header'''
+ return CHECK_TYPE(conf, t, headers=headers, alternate=alternate, define=define, cflags=cflags)
+
+
+@conf
+def CHECK_VARIABLE(conf, v, define=None, always=False,
+ headers=None, msg=None, lib=None,
+ mandatory=False):
+ '''check for a variable declaration (or define)'''
+ if define is None:
+ define = 'HAVE_%s' % v.upper()
+
+ if msg is None:
+ msg="Checking for variable %s" % v
+
+ return CHECK_CODE(conf,
+ # we need to make sure the compiler doesn't
+ # optimize it out...
+ '''
+ #ifndef %s
+ void *_x; _x=(void *)&%s; return (int)_x;
+ #endif
+ return 0
+ ''' % (v, v),
+ execute=False,
+ link=False,
+ msg=msg,
+ local_include=False,
+ lib=lib,
+ headers=headers,
+ define=define,
+ mandatory=mandatory,
+ always=always)
+
+
+@conf
+def CHECK_DECLS(conf, vars, reverse=False, headers=None, lib=None, always=False):
+ '''check a list of variable declarations, using the HAVE_DECL_xxx form
+ of define
+
+ When reverse==True then use HAVE_xxx_DECL instead of HAVE_DECL_xxx
+ '''
+ ret = True
+ for v in TO_LIST(vars):
+ if not reverse:
+ define='HAVE_DECL_%s' % v.upper()
+ else:
+ define='HAVE_%s_DECL' % v.upper()
+ if not CHECK_VARIABLE(conf, v,
+ define=define,
+ headers=headers,
+ lib=lib,
+ msg='Checking for declaration of %s' % v,
+ always=always):
+ if not CHECK_CODE(conf,
+ '''
+ return (int)%s;
+ ''' % (v),
+ execute=False,
+ link=False,
+ msg='Checking for declaration of %s (as enum)' % v,
+ local_include=False,
+ headers=headers,
+ lib=lib,
+ define=define,
+ always=always):
+ ret = False
+ return ret
+
+
+def CHECK_FUNC(conf, f, link=True, lib=None, headers=None):
+ '''check for a function'''
+ define='HAVE_%s' % f.upper()
+
+ ret = False
+
+ in_lib_str = ""
+ if lib:
+ in_lib_str = " in %s" % lib
+ conf.COMPOUND_START('Checking for %s%s' % (f, in_lib_str))
+
+ if link is None or link:
+ ret = CHECK_CODE(conf,
+ # this is based on the autoconf strategy
+ '''
+ #define %s __fake__%s
+ #ifdef HAVE_LIMITS_H
+ # include <limits.h>
+ #else
+ # include <assert.h>
+ #endif
+ #undef %s
+ #if defined __stub_%s || defined __stub___%s
+ #error "bad glibc stub"
+ #endif
+ extern char %s();
+ int main() { return %s(); }
+ ''' % (f, f, f, f, f, f, f),
+ execute=False,
+ link=True,
+ addmain=False,
+ add_headers=False,
+ define=define,
+ local_include=False,
+ lib=lib,
+ headers=headers,
+ msg='Checking for %s' % f)
+
+ if not ret:
+ ret = CHECK_CODE(conf,
+ # it might be a macro
+ # we need to make sure the compiler doesn't
+ # optimize it out...
+ 'void *__x = (void *)%s; return (int)__x' % f,
+ execute=False,
+ link=True,
+ addmain=True,
+ add_headers=True,
+ define=define,
+ local_include=False,
+ lib=lib,
+ headers=headers,
+ msg='Checking for macro %s' % f)
+
+ if not ret and (link is None or not link):
+ ret = CHECK_VARIABLE(conf, f,
+ define=define,
+ headers=headers,
+ msg='Checking for declaration of %s' % f)
+ conf.COMPOUND_END(ret)
+ return ret
+
+
+@conf
+def CHECK_FUNCS(conf, list, link=True, lib=None, headers=None):
+ '''check for a list of functions'''
+ ret = True
+ for f in TO_LIST(list):
+ if not CHECK_FUNC(conf, f, link=link, lib=lib, headers=headers):
+ ret = False
+ return ret
+
+
+@conf
+def CHECK_SIZEOF(conf, vars, headers=None, define=None, critical=True):
+ '''check the size of a type'''
+ for v in TO_LIST(vars):
+ v_define = define
+ ret = False
+ if v_define is None:
+ v_define = 'SIZEOF_%s' % v.upper().replace(' ', '_')
+ for size in list((1, 2, 4, 8, 16, 32, 64)):
+ if CHECK_CODE(conf,
+ 'static int test_array[1 - 2 * !(((long int)(sizeof(%s))) <= %d)];' % (v, size),
+ define=v_define,
+ quote=False,
+ headers=headers,
+ local_include=False,
+ msg="Checking if size of %s == %d" % (v, size)):
+ conf.DEFINE(v_define, size)
+ ret = True
+ break
+ if not ret and critical:
+ Logs.error("Couldn't determine size of '%s'" % v)
+ sys.exit(1)
+ return ret
+
+@conf
+def CHECK_SIGN(conf, v, headers=None):
+ '''check the sign of a type'''
+ define_name = v.upper().replace(' ', '_')
+ for op, signed in [('<', 'signed'),
+ ('>', 'unsigned')]:
+ if CHECK_CODE(conf,
+ f'static int test_array[1 - 2 * !((({v})-1) {op} 0)];',
+ define=f'{define_name}_{signed.upper()}',
+ quote=False,
+ headers=headers,
+ local_include=False,
+ msg=f"Checking if '{v}' is {signed}"):
+ return True
+
+ return False
+
+@conf
+def CHECK_VALUEOF(conf, v, headers=None, define=None):
+ '''check the value of a variable/define'''
+ ret = True
+ v_define = define
+ if v_define is None:
+ v_define = 'VALUEOF_%s' % v.upper().replace(' ', '_')
+ if CHECK_CODE(conf,
+ 'printf("%%u", (unsigned)(%s))' % v,
+ define=v_define,
+ execute=True,
+ define_ret=True,
+ quote=False,
+ headers=headers,
+ local_include=False,
+ msg="Checking value of %s" % v):
+ return int(conf.env[v_define])
+
+ return None
+
+@conf
+def CHECK_CODE(conf, code, define,
+ always=False, execute=False, addmain=True,
+ add_headers=True, mandatory=False,
+ headers=None, msg=None, cflags='', includes='# .',
+ local_include=True, lib=None, link=True,
+ define_ret=False, quote=False,
+ on_target=True, strict=False):
+ '''check if some code compiles and/or runs'''
+
+ if CONFIG_SET(conf, define):
+ return True
+
+ if headers is not None:
+ CHECK_HEADERS(conf, headers=headers, lib=lib)
+
+ if add_headers:
+ hdrs = header_list(conf, headers=headers, lib=lib)
+ else:
+ hdrs = ''
+ if execute:
+ execute = 1
+ else:
+ execute = 0
+
+ if addmain:
+ fragment='%s\n int main(void) { %s; return 0; }\n' % (hdrs, code)
+ else:
+ fragment='%s\n%s\n' % (hdrs, code)
+
+ if msg is None:
+ msg="Checking for %s" % define
+
+ cflags = TO_LIST(cflags)
+
+ # Be strict when relying on a compiler check
+ # Some compilers (e.g. xlc) ignore non-supported features as warnings
+ if strict:
+ if 'WERROR_CFLAGS' in conf.env:
+ cflags.extend(conf.env['WERROR_CFLAGS'])
+
+ if local_include:
+ cflags.append('-I%s' % conf.path.abspath())
+
+ if not link:
+ type='nolink'
+ else:
+ type='cprogram'
+
+ uselib = TO_LIST(lib)
+
+ (ccflags, ldflags, cpppath) = library_flags(conf, uselib)
+
+ includes = TO_LIST(includes)
+ includes.extend(cpppath)
+
+ uselib = [l.upper() for l in uselib]
+
+ cflags.extend(ccflags)
+
+ if on_target:
+ test_args = conf.SAMBA_CROSS_ARGS(msg=msg)
+ else:
+ test_args = []
+
+ conf.COMPOUND_START(msg)
+
+ try:
+ ret = conf.check(fragment=fragment,
+ execute=execute,
+ define_name = define,
+ cflags=cflags,
+ ldflags=ldflags,
+ includes=includes,
+ uselib=uselib,
+ type=type,
+ msg=msg,
+ quote=quote,
+ test_args=test_args,
+ define_ret=define_ret)
+ except Exception:
+ if always:
+ conf.DEFINE(define, 0)
+ else:
+ conf.undefine(define)
+ conf.COMPOUND_END(False)
+ if mandatory:
+ raise
+ return False
+ else:
+ # Success is indicated by ret but we should unset
+ # defines set by WAF's c_config.check() because it
+ # defines it to int(ret) and we want to undefine it
+ if not ret:
+ conf.undefine(define)
+ conf.COMPOUND_END(False)
+ return False
+ if not define_ret:
+ conf.DEFINE(define, 1)
+ conf.COMPOUND_END(True)
+ else:
+ conf.DEFINE(define, ret, quote=quote)
+ conf.COMPOUND_END(ret)
+ return True
+
+
+@conf
+def CHECK_STRUCTURE_MEMBER(conf, structname, member,
+ always=False, define=None, headers=None,
+ lib=None):
+ '''check for a structure member'''
+ if define is None:
+ define = 'HAVE_%s' % member.upper()
+ return CHECK_CODE(conf,
+ '%s s; void *_x; _x=(void *)&s.%s' % (structname, member),
+ define,
+ execute=False,
+ link=False,
+ lib=lib,
+ always=always,
+ headers=headers,
+ local_include=False,
+ msg="Checking for member %s in %s" % (member, structname))
+
+
+@conf
+def CHECK_CFLAGS(conf, cflags, fragment='int main(void) { return 0; }\n',
+ mandatory=False):
+ '''check if the given cflags are accepted by the compiler
+ '''
+ check_cflags = TO_LIST(cflags)
+ if 'WERROR_CFLAGS' in conf.env:
+ check_cflags.extend(conf.env['WERROR_CFLAGS'])
+ return conf.check(fragment=fragment,
+ execute=0,
+ mandatory=mandatory,
+ type='nolink',
+ cflags=check_cflags,
+ msg="Checking compiler accepts %s" % cflags)
+
+@conf
+def CHECK_LDFLAGS(conf, ldflags,
+ mandatory=False):
+ '''check if the given ldflags are accepted by the linker
+ '''
+ return conf.check(fragment='int main(void) { return 0; }\n',
+ execute=0,
+ ldflags=ldflags,
+ mandatory=mandatory,
+ msg="Checking linker accepts %s" % ldflags)
+
+
+@conf
+def CONFIG_GET(conf, option):
+ '''return True if a configuration option was found'''
+ if (option in conf.env):
+ return conf.env[option]
+ else:
+ return None
+
+@conf
+def CONFIG_SET(conf, option):
+ '''return True if a configuration option was found'''
+ if option not in conf.env:
+ return False
+ v = conf.env[option]
+ if v is None:
+ return False
+ if v == []:
+ return False
+ if v == ():
+ return False
+ return True
+
+@conf
+def CONFIG_RESET(conf, option):
+ if option not in conf.env:
+ return
+ del conf.env[option]
+
+Build.BuildContext.CONFIG_RESET = CONFIG_RESET
+Build.BuildContext.CONFIG_SET = CONFIG_SET
+Build.BuildContext.CONFIG_GET = CONFIG_GET
+
+
+def library_flags(self, libs):
+ '''work out flags from pkg_config'''
+ ccflags = []
+ ldflags = []
+ cpppath = []
+ for lib in TO_LIST(libs):
+ # note that we do not add the -I and -L in here, as that is added by the waf
+ # core. Adding it here would just change the order that it is put on the link line
+ # which can cause system paths to be added before internal libraries
+ extra_ccflags = TO_LIST(getattr(self.env, 'CFLAGS_%s' % lib.upper(), []))
+ extra_ldflags = TO_LIST(getattr(self.env, 'LDFLAGS_%s' % lib.upper(), []))
+ extra_cpppath = TO_LIST(getattr(self.env, 'CPPPATH_%s' % lib.upper(), []))
+ ccflags.extend(extra_ccflags)
+ ldflags.extend(extra_ldflags)
+ cpppath.extend(extra_cpppath)
+
+ extra_cpppath = TO_LIST(getattr(self.env, 'INCLUDES_%s' % lib.upper(), []))
+ cpppath.extend(extra_cpppath)
+ if 'EXTRA_LDFLAGS' in self.env:
+ ldflags.extend(self.env['EXTRA_LDFLAGS'])
+
+ ccflags = unique_list(ccflags)
+ ldflags = unique_list(ldflags)
+ cpppath = unique_list(cpppath)
+ return (ccflags, ldflags, cpppath)
+
+
+@conf
+def CHECK_LIB(conf, libs, mandatory=False, empty_decl=True, set_target=True, shlib=False):
+ '''check if a set of libraries exist as system libraries
+
+ returns the sublist of libs that do exist as a syslib or []
+ '''
+
+ fragment= '''
+int foo()
+{
+ int v = 2;
+ return v*2;
+}
+'''
+ ret = []
+ liblist = TO_LIST(libs)
+ for lib in liblist[:]:
+ if GET_TARGET_TYPE(conf, lib) == 'SYSLIB':
+ ret.append(lib)
+ continue
+
+ (ccflags, ldflags, cpppath) = library_flags(conf, lib)
+ if shlib:
+ res = conf.check(features='c cshlib', fragment=fragment, lib=lib, uselib_store=lib, cflags=ccflags, ldflags=ldflags, uselib=lib.upper(), mandatory=False)
+ else:
+ res = conf.check(lib=lib, uselib_store=lib, cflags=ccflags, ldflags=ldflags, uselib=lib.upper(), mandatory=False)
+
+ if not res:
+ if mandatory:
+ Logs.error("Mandatory library '%s' not found for functions '%s'" % (lib, list))
+ sys.exit(1)
+ if empty_decl:
+ # if it isn't a mandatory library, then remove it from dependency lists
+ if set_target:
+ SET_TARGET_TYPE(conf, lib, 'EMPTY')
+ else:
+ conf.define('HAVE_LIB%s' % lib.upper().replace('-','_').replace('.','_'), 1)
+ conf.env['LIB_' + lib.upper()] = lib
+ if set_target:
+ conf.SET_TARGET_TYPE(lib, 'SYSLIB')
+ ret.append(lib)
+
+ return ret
+
+
+
+@conf
+def CHECK_FUNCS_IN(conf, list, library, mandatory=False, checklibc=False,
+ headers=None, link=True, empty_decl=True, set_target=True):
+ """
+ check that the functions in 'list' are available in 'library'
+ if they are, then make that library available as a dependency
+
+ if the library is not available and mandatory==True, then
+ raise an error.
+
+ If the library is not available and mandatory==False, then
+ add the library to the list of dependencies to remove from
+ build rules
+
+ optionally check for the functions first in libc
+ """
+ remaining = TO_LIST(list)
+ liblist = TO_LIST(library)
+
+ # check if some already found
+ for f in remaining[:]:
+ if CONFIG_SET(conf, 'HAVE_%s' % f.upper()):
+ remaining.remove(f)
+
+ # see if the functions are in libc
+ if checklibc:
+ for f in remaining[:]:
+ if CHECK_FUNC(conf, f, link=True, headers=headers):
+ remaining.remove(f)
+
+ if remaining == []:
+ for lib in liblist:
+ if GET_TARGET_TYPE(conf, lib) != 'SYSLIB' and empty_decl:
+ SET_TARGET_TYPE(conf, lib, 'EMPTY')
+ return True
+
+ checklist = conf.CHECK_LIB(liblist, empty_decl=empty_decl, set_target=set_target)
+ for lib in liblist[:]:
+ if not lib in checklist and mandatory:
+ Logs.error("Mandatory library '%s' not found for functions '%s'" % (lib, list))
+ sys.exit(1)
+
+ ret = True
+ for f in remaining:
+ if not CHECK_FUNC(conf, f, lib=' '.join(checklist), headers=headers, link=link):
+ ret = False
+
+ return ret
+
+
+@conf
+def IN_LAUNCH_DIR(conf):
+ '''return True if this rule is being run from the launch directory'''
+ return os.path.realpath(conf.path.abspath()) == os.path.realpath(Context.launch_dir)
+Options.OptionsContext.IN_LAUNCH_DIR = IN_LAUNCH_DIR
+
+
+@conf
+def SAMBA_CONFIG_H(conf, path=None):
+ '''write out config.h in the right directory'''
+ # we don't want to produce a config.h in places like lib/replace
+ # when we are building projects that depend on lib/replace
+ if not IN_LAUNCH_DIR(conf):
+ return
+
+ # we need to build real code that can't be optimized away to test
+ stack_protect_list = ['-fstack-protector-strong', '-fstack-protector']
+ for stack_protect_flag in stack_protect_list:
+ flag_supported = conf.check(fragment='''
+ #include <stdio.h>
+
+ int main(void)
+ {
+ char t[100000];
+ while (fgets(t, sizeof(t), stdin));
+ return 0;
+ }
+ ''',
+ execute=0,
+ cflags=[ '-Werror', '-Wp,-D_FORTIFY_SOURCE=2', stack_protect_flag],
+ mandatory=False,
+ msg='Checking if compiler accepts %s' % (stack_protect_flag))
+ if flag_supported:
+ conf.ADD_CFLAGS('%s' % (stack_protect_flag))
+ break
+
+ flag_supported = conf.check(fragment='''
+ #include <stdio.h>
+
+ int main(void)
+ {
+ char t[100000];
+ while (fgets(t, sizeof(t), stdin));
+ return 0;
+ }
+ ''',
+ execute=0,
+ cflags=[ '-Werror', '-fstack-clash-protection'],
+ mandatory=False,
+ msg='Checking if compiler accepts -fstack-clash-protection')
+ if flag_supported:
+ conf.ADD_CFLAGS('-fstack-clash-protection')
+
+ if Options.options.debug:
+ conf.ADD_CFLAGS('-g', testflags=True)
+
+ if Options.options.pidl_developer:
+ conf.env.PIDL_DEVELOPER_MODE = True
+
+ if Options.options.developer:
+ conf.env.DEVELOPER_MODE = True
+
+ conf.ADD_CFLAGS('-g', testflags=True)
+ conf.ADD_CFLAGS('-Wall', testflags=True)
+ conf.ADD_CFLAGS('-Wshadow', testflags=True)
+ conf.ADD_CFLAGS('-Wmissing-prototypes', testflags=True)
+ if CHECK_CODE(conf,
+ 'struct a { int b; }; struct c { struct a d; } e = { };',
+ 'CHECK_C99_INIT',
+ link=False,
+ cflags='-Wmissing-field-initializers -Werror=missing-field-initializers',
+ msg="Checking C99 init of nested structs."):
+ conf.ADD_CFLAGS('-Wmissing-field-initializers', testflags=True)
+ conf.ADD_CFLAGS('-Wformat-overflow=2', testflags=True)
+ conf.ADD_CFLAGS('-Wformat-zero-length', testflags=True)
+ conf.ADD_CFLAGS('-Wcast-align -Wcast-qual', testflags=True)
+ conf.ADD_CFLAGS('-fno-common', testflags=True)
+
+ conf.ADD_CFLAGS('-Werror=address', testflags=True)
+ # we add these here to ensure that -Wstrict-prototypes is not set during configure
+ conf.ADD_CFLAGS('-Werror=strict-prototypes -Wstrict-prototypes',
+ testflags=True)
+ conf.ADD_CFLAGS('-Werror=write-strings -Wwrite-strings',
+ testflags=True)
+ conf.ADD_CFLAGS('-Werror-implicit-function-declaration',
+ testflags=True)
+ conf.ADD_CFLAGS('-Werror=implicit-int',
+ testflags=True)
+ conf.ADD_CFLAGS('-Werror=pointer-arith -Wpointer-arith',
+ testflags=True)
+ conf.ADD_CFLAGS('-Werror=declaration-after-statement -Wdeclaration-after-statement',
+ testflags=True)
+ conf.ADD_CFLAGS('-Werror=return-type -Wreturn-type',
+ testflags=True)
+ conf.ADD_CFLAGS('-Werror=uninitialized -Wuninitialized',
+ testflags=True)
+ conf.ADD_CFLAGS('-Wimplicit-fallthrough',
+ testflags=True)
+ conf.ADD_CFLAGS('-Werror=strict-overflow -Wstrict-overflow=2',
+ testflags=True)
+ conf.ADD_CFLAGS('-Werror=old-style-definition -Wold-style-definition',
+ testflags=True)
+
+ conf.ADD_CFLAGS('-Wformat=2 -Wno-format-y2k', testflags=True)
+ conf.ADD_CFLAGS('-Wno-format-zero-length', testflags=True)
+ conf.ADD_CFLAGS('-Werror=format-security -Wformat-security',
+ testflags=True, prereq_flags='-Wformat')
+ # This check is because for ldb_search(), a NULL format string
+ # is not an error, but some compilers complain about that.
+ if CHECK_CFLAGS(conf, ["-Werror=format", "-Wformat=2"], '''
+int testformat(char *format, ...) __attribute__ ((format (__printf__, 1, 2)));
+
+int main(void) {
+ testformat(0);
+ return 0;
+}
+
+'''):
+ if not 'EXTRA_CFLAGS' in conf.env:
+ conf.env['EXTRA_CFLAGS'] = []
+ conf.env['EXTRA_CFLAGS'].extend(TO_LIST("-Werror=format"))
+
+ if CHECK_CFLAGS(conf, ["-Wno-error=array-bounds"]):
+ conf.define('HAVE_WNO_ERROR_ARRAY_BOUNDS', 1)
+
+ if not Options.options.disable_warnings_as_errors:
+ conf.ADD_NAMED_CFLAGS('PICKY_CFLAGS', '-Werror -Wno-error=deprecated-declarations', testflags=True)
+ conf.ADD_NAMED_CFLAGS('PICKY_CFLAGS', '-Wno-error=tautological-compare', testflags=True)
+ conf.ADD_NAMED_CFLAGS('PICKY_CFLAGS', '-Wno-error=cast-align', testflags=True)
+
+ if Options.options.fatal_errors:
+ conf.ADD_CFLAGS('-Wfatal-errors', testflags=True)
+
+ if Options.options.pedantic:
+ conf.ADD_CFLAGS('-W', testflags=True)
+
+ if (Options.options.address_sanitizer or
+ Options.options.undefined_sanitizer):
+ conf.ADD_CFLAGS('-g -O1', testflags=True)
+ if Options.options.address_sanitizer:
+ conf.ADD_CFLAGS('-fno-omit-frame-pointer', testflags=True)
+ conf.ADD_CFLAGS('-fsanitize=address', testflags=True)
+ conf.ADD_LDFLAGS('-fsanitize=address', testflags=True)
+ conf.env['ADDRESS_SANITIZER'] = True
+ if Options.options.undefined_sanitizer:
+ conf.ADD_CFLAGS('-fsanitize=undefined', testflags=True)
+ conf.ADD_CFLAGS('-fsanitize=null', testflags=True)
+ conf.ADD_CFLAGS('-fsanitize=alignment', testflags=True)
+ conf.ADD_LDFLAGS('-fsanitize=undefined', testflags=True)
+ conf.env['UNDEFINED_SANITIZER'] = True
+
+
+ # Let people pass an additional ADDITIONAL_{CFLAGS,LDFLAGS}
+ # environment variables which are only used the for final build.
+ #
+ # The CFLAGS and LDFLAGS environment variables are also
+ # used for the configure checks which might impact their results.
+ #
+ # If these variables don't pass a smoke test, fail the configure
+
+ conf.add_os_flags('ADDITIONAL_CFLAGS')
+ if conf.env.ADDITIONAL_CFLAGS:
+ conf.CHECK_CFLAGS(conf.env['ADDITIONAL_CFLAGS'],
+ mandatory=True)
+ conf.env['EXTRA_CFLAGS'].extend(conf.env['ADDITIONAL_CFLAGS'])
+
+ conf.add_os_flags('ADDITIONAL_LDFLAGS')
+ if conf.env.ADDITIONAL_LDFLAGS:
+ conf.CHECK_LDFLAGS(conf.env['ADDITIONAL_LDFLAGS'],
+ mandatory=True)
+ conf.env['EXTRA_LDFLAGS'].extend(conf.env['ADDITIONAL_LDFLAGS'])
+
+ if path is None:
+ conf.write_config_header('default/config.h', top=True, remove=False)
+ else:
+ conf.write_config_header(os.path.join(conf.variant, path), remove=False)
+ for key in conf.env.define_key:
+ conf.undefine(key, from_env=False)
+ conf.env.define_key = []
+ conf.SAMBA_CROSS_CHECK_COMPLETE()
+
+
+@conf
+def CONFIG_PATH(conf, name, default):
+ '''setup a configurable path'''
+ if not name in conf.env:
+ if default[0] == '/':
+ conf.env[name] = default
+ else:
+ conf.env[name] = conf.env['PREFIX'] + default
+
+@conf
+def ADD_NAMED_CFLAGS(conf, name, flags, testflags=False, prereq_flags=[]):
+ '''add some CFLAGS to the command line
+ optionally set testflags to ensure all the flags work
+ '''
+ prereq_flags = TO_LIST(prereq_flags)
+ if testflags:
+ ok_flags=[]
+ for f in flags.split():
+ if CHECK_CFLAGS(conf, [f] + prereq_flags):
+ ok_flags.append(f)
+ flags = ok_flags
+ if not name in conf.env:
+ conf.env[name] = []
+ conf.env[name].extend(TO_LIST(flags))
+
+@conf
+def ADD_CFLAGS(conf, flags, testflags=False, prereq_flags=[]):
+ '''add some CFLAGS to the command line
+ optionally set testflags to ensure all the flags work
+ '''
+ ADD_NAMED_CFLAGS(conf, 'EXTRA_CFLAGS', flags, testflags=testflags,
+ prereq_flags=prereq_flags)
+
+@conf
+def ADD_LDFLAGS(conf, flags, testflags=False):
+ '''add some LDFLAGS to the command line
+ optionally set testflags to ensure all the flags work
+
+ this will return the flags that are added, if any
+ '''
+ if testflags:
+ ok_flags=[]
+ for f in flags.split():
+ if CHECK_LDFLAGS(conf, f):
+ ok_flags.append(f)
+ flags = ok_flags
+ if not 'EXTRA_LDFLAGS' in conf.env:
+ conf.env['EXTRA_LDFLAGS'] = []
+ conf.env['EXTRA_LDFLAGS'].extend(TO_LIST(flags))
+ return flags
+
+
+@conf
+def ADD_EXTRA_INCLUDES(conf, includes):
+ '''add some extra include directories to all builds'''
+ if not 'EXTRA_INCLUDES' in conf.env:
+ conf.env['EXTRA_INCLUDES'] = []
+ conf.env['EXTRA_INCLUDES'].extend(TO_LIST(includes))
+
+
+
+def CURRENT_CFLAGS(bld, target, cflags,
+ allow_warnings=False,
+ use_hostcc=False,
+ hide_symbols=False):
+ '''work out the current flags. local flags are added first'''
+ ret = []
+ if use_hostcc:
+ ret += ['-D_SAMBA_HOSTCC_']
+ ret += TO_LIST(cflags)
+ if not 'EXTRA_CFLAGS' in bld.env:
+ list = []
+ else:
+ list = bld.env['EXTRA_CFLAGS'];
+ ret.extend(list)
+ if not allow_warnings and 'PICKY_CFLAGS' in bld.env:
+ list = bld.env['PICKY_CFLAGS'];
+ ret.extend(list)
+ if hide_symbols and bld.env.HAVE_VISIBILITY_ATTR:
+ ret.append(bld.env.VISIBILITY_CFLAGS)
+ return ret
+
+
+@conf
+def CHECK_CC_ENV(conf):
+ """trim whitespaces from 'CC'.
+ The build farm sometimes puts a space at the start"""
+ if os.environ.get('CC'):
+ conf.env.CC = TO_LIST(os.environ.get('CC'))
+
+
+@conf
+def SETUP_CONFIGURE_CACHE(conf, enable):
+ '''enable/disable cache of configure results'''
+ if enable:
+ # when -C is chosen, we will use a private cache and will
+ # not look into system includes. This roughtly matches what
+ # autoconf does with -C
+ cache_path = os.path.join(conf.bldnode.abspath(), '.confcache')
+ mkdir_p(cache_path)
+ Options.cache_global = os.environ['WAFCACHE'] = cache_path
+ else:
+ # when -C is not chosen we will not cache configure checks
+ # We set the recursion limit low to prevent waf from spending
+ # a lot of time on the signatures of the files.
+ Options.cache_global = os.environ['WAFCACHE'] = ''
+ preproc.recursion_limit = 1
+ # in either case we don't need to scan system includes
+ preproc.go_absolute = False
+
+
+@conf
+def SAMBA_CHECK_UNDEFINED_SYMBOL_FLAGS(conf):
+ if Options.options.address_sanitizer or Options.options.enable_libfuzzer:
+ # Sanitizers can rely on symbols undefined at library link time and the
+ # symbols used for fuzzers are only defined by compiler wrappers.
+ return
+
+ if not sys.platform.startswith("openbsd"):
+ # we don't want any libraries or modules to rely on runtime
+ # resolution of symbols
+ conf.env.undefined_ldflags = conf.ADD_LDFLAGS('-Wl,-no-undefined', testflags=True)
+
+ if (conf.env.undefined_ignore_ldflags == [] and
+ conf.CHECK_LDFLAGS(['-undefined', 'dynamic_lookup'])):
+ conf.env.undefined_ignore_ldflags = ['-undefined', 'dynamic_lookup']