r3586: Fix some of the issues with the module init functions.

Both subsystems and modules can now have init functions, which can be
specified in .mk files (INIT_FUNCTION = ...)

The build system will define :
 - SUBSYSTEM_init_static_modules that calls the init functions of all statically compiled modules. Failing to load will generate an error which is not fatal
 - BINARY_init_subsystems that calls the init functions (if defined) for the subsystems the binary depends on

This removes the hack with the "static bool Initialised = " and the
"lazy_init" functions
(This used to be commit 7a8244761bfdfdfb48f8264d76951ebdfbf7bd8a)

3 files changed, 62 insertions, 47 deletions

diff --git a/source4/build/smb_build/depend.pl b/source4/build/smb_build/depend.pl
index a5a95eb547..a45fb725e1 100644
--- a/source4/build/smb_build/depend.pl
+++ b/source4/build/smb_build/depend.pl
@@ -147,6 +147,7 @@ sub _do_depend_subsystems($)
 	foreach my $key (sort keys %{$CTX->{INPUT}{SUBSYSTEMS}}) {
 		my $name = $CTX->{INPUT}{SUBSYSTEMS}{$key}{NAME};
 		my @STATIC_MODULES_LIST = ();
+		my @INIT_FUNCTIONS = ();
 
 		#
 		# skip when the subsystem was disabled
@@ -159,28 +160,19 @@ sub _do_depend_subsystems($)
 		# create the subsystems used OBJ_LIST
 		#
 		my @OBJ_LIST = ();
-		foreach my $elem (@{$CTX->{INPUT}{SUBSYSTEMS}{$key}{INIT_OBJ_FILES}}) {
-			push(@OBJ_LIST,$elem);
-		}
-		foreach my $elem (@{$CTX->{INPUT}{SUBSYSTEMS}{$key}{ADD_OBJ_FILES}}) {
-			push(@OBJ_LIST,$elem);
-		}
+		push (@OBJ_LIST, @{$CTX->{INPUT}{SUBSYSTEMS}{$key}{INIT_OBJ_FILES}});
+		push (@OBJ_LIST, @{$CTX->{INPUT}{SUBSYSTEMS}{$key}{ADD_OBJ_FILES}});
 
 		#
 		# create the subsystems used SUBSYSTEMS_LIST
 		#
 		my @SUBSYSTEMS_LIST = ();
-		foreach my $elem (@{$CTX->{INPUT}{SUBSYSTEMS}{$key}{REQUIRED_SUBSYSTEMS}}) {
-			push(@SUBSYSTEMS_LIST,$elem);
-		}
-
+		push (@SUBSYSTEMS_LIST, (@{$CTX->{INPUT}{SUBSYSTEMS}{$key}{REQUIRED_SUBSYSTEMS}}));
 		#
 		# create the subsystems used LIBRARIES_LIST
 		#
 		my @LIBRARIES_LIST = ();
-		foreach my $elem (@{$CTX->{INPUT}{SUBSYSTEMS}{$key}{REQUIRED_LIBRARIES}}) {
-			push(@LIBRARIES_LIST,$elem);
-		}
+		push (@LIBRARIES_LIST, @{$CTX->{INPUT}{SUBSYSTEMS}{$key}{REQUIRED_LIBRARIES}});
 
 		#
 		# now collect the info from the subsystems static modules
@@ -204,35 +196,29 @@ sub _do_depend_subsystems($)
 			# add it to the STATIC_MODULES_LIST
 			#
 			push(@STATIC_MODULES_LIST,$subkey);
+			push (@INIT_FUNCTIONS, $CTX->{INPUT}{MODULES}{$subkey}{INIT_FUNCTION}) if $CTX->{INPUT}{MODULES}{$subkey}{INIT_FUNCTION} ne "";
 
 			#
 			# add OBJS of static modules to the subsystems used OBJ_LIST
 			#
-			foreach my $elem (@{$CTX->{INPUT}{MODULES}{$subkey}{INIT_OBJ_FILES}}) {
-				push(@OBJ_LIST,$elem);
-			}
-			foreach my $elem (@{$CTX->{INPUT}{MODULES}{$subkey}{ADD_OBJ_FILES}}) {
-				push(@OBJ_LIST,$elem);
-			}
+			push (@OBJ_LIST, (@{$CTX->{INPUT}{MODULES}{$subkey}{INIT_OBJ_FILES}}));
+			push (@OBJ_LIST, (@{$CTX->{INPUT}{MODULES}{$subkey}{ADD_OBJ_FILES}}));
 
 			#
 			# add SUBSYSTEMS of static modules to the subsystems used SUBSYSTEMS_LIST
 			#
-			foreach my $elem (@{$CTX->{INPUT}{MODULES}{$subkey}{REQUIRED_SUBSYSTEMS}}) {
-				push(@SUBSYSTEMS_LIST,$elem);
-			}
+			push (@SUBSYSTEMS_LIST, (@{$CTX->{INPUT}{MODULES}{$subkey}{REQUIRED_SUBSYSTEMS}}));
 
 			#
 			# add LIBRARIES of static modules to  the subsystems used LIBRARIES_LIST
 			#
-			foreach my $elem (@{$CTX->{INPUT}{MODULES}{$subkey}{REQUIRED_LIBRARIES}}) {
-				push(@LIBRARIES_LIST,$elem);
-			}
+			push (@LIBRARIES_LIST, (@{$CTX->{INPUT}{MODULES}{$subkey}{REQUIRED_LIBRARIES}}));
 		}
 
 		#
 		# set the lists
 		#
+		@{$CTX->{DEPEND}{SUBSYSTEMS}{$key}{INIT_FUNCTIONS}} = @INIT_FUNCTIONS;
 		@{$CTX->{DEPEND}{SUBSYSTEMS}{$key}{OBJ_LIST}} = @OBJ_LIST;
 		@{$CTX->{DEPEND}{SUBSYSTEMS}{$key}{STATIC_MODULES_LIST}} = @STATIC_MODULES_LIST;
 		@{$CTX->{DEPEND}{SUBSYSTEMS}{$key}{SUBSYSTEMS_LIST}} = @SUBSYSTEMS_LIST;
@@ -303,9 +289,7 @@ sub _do_depend_shared_modules($)
 		# create the shared modules used SUBSYSTEMS_LIST
 		#
 		my @SUBSYSTEMS_LIST = ();
-		foreach my $elem (@{$CTX->{INPUT}{MODULES}{$key}{REQUIRED_SUBSYSTEMS}}) {
-			push(@SUBSYSTEMS_LIST,$elem);
-		}
+		push (@SUBSYSTEMS_LIST, (@{$CTX->{INPUT}{MODULES}{$key}{REQUIRED_SUBSYSTEMS}}));
 
 		#
 		# now try to resolve the dependencies for the shared module
@@ -316,9 +300,7 @@ sub _do_depend_shared_modules($)
 		# create the shared modules used LIBRARIES_LIST
 		#
 		my @LIBRARIES_LIST = ();
-		foreach my $elem (@{$CTX->{INPUT}{MODULES}{$key}{REQUIRED_LIBRARIES}}) {
-			push(@LIBRARIES_LIST,$elem);
-		}
+		push (@LIBRARIES_LIST, @{$CTX->{INPUT}{MODULES}{$key}{REQUIRED_LIBRARIES}});
 
 		#
 		# add the LIBARARIES of each subsysetm in the @SUBSYSTEMS_LIST
@@ -361,9 +343,7 @@ sub _do_depend_libraries($)
 		# create the libraries used SUBSYSTEMS_LIST
 		#
 		my @SUBSYSTEMS_LIST = ();
-		foreach my $elem (@{$CTX->{INPUT}{LIBRARIES}{$key}{REQUIRED_SUBSYSTEMS}}) {
-			push(@SUBSYSTEMS_LIST,$elem);
-		}
+		push (@SUBSYSTEMS_LIST, @{$CTX->{INPUT}{LIBRARIES}{$key}{REQUIRED_SUBSYSTEMS}});
 
 		#
 		# now try to resolve the dependencies for the library
@@ -374,9 +354,7 @@ sub _do_depend_libraries($)
 		# create the libraries used LIBRARIES_LIST
 		#
 		my @LIBRARIES_LIST = ();
-		foreach my $elem (@{$CTX->{INPUT}{LIBRARIES}{$key}{REQUIRED_LIBRARIES}}) {
-			push(@LIBRARIES_LIST,$elem);
-		}
+		push (@LIBRARIES_LIST, @{$CTX->{INPUT}{LIBRARIES}{$key}{REQUIRED_LIBRARIES}});
 
 		#
 		# add the LIBARARIES of each subsysetm in the @SUBSYSTEMS_LIST
@@ -419,22 +397,26 @@ sub _do_depend_binaries($)
 		# create the binaries used SUBSYSTEMS_LIST
 		#
 		my @SUBSYSTEMS_LIST = ();
-		foreach my $elem (@{$CTX->{INPUT}{BINARIES}{$key}{REQUIRED_SUBSYSTEMS}}) {
-			push(@SUBSYSTEMS_LIST,$elem);
-		}
+		push (@SUBSYSTEMS_LIST, @{$CTX->{INPUT}{BINARIES}{$key}{REQUIRED_SUBSYSTEMS}});
 
 		#
 		# now try to resolve the dependencies for the binary
 		#
 		@SUBSYSTEMS_LIST = _do_calc_subsystem_list($CTX, \@SUBSYSTEMS_LIST);
 
+		my @INIT_FUNCTIONS = ();
+
+		foreach my $subkey (@SUBSYSTEMS_LIST)
+		{
+			push (@INIT_FUNCTIONS, $CTX->{INPUT}{SUBSYSTEMS}{$subkey}{INIT_FUNCTION}) if $CTX->{INPUT}{SUBSYSTEMS}{$subkey}{INIT_FUNCTION} ne "";
+			
+		}
+
 		#
 		# create the binaries used LIBRARIES_LIST
 		#
 		my @LIBRARIES_LIST = ();
-		foreach my $elem (@{$CTX->{INPUT}{BINARIES}{$key}{REQUIRED_LIBRARIES}}) {
-			push(@LIBRARIES_LIST,$elem);
-		}
+		push (@LIBRARIES_LIST, @{$CTX->{INPUT}{BINARIES}{$key}{REQUIRED_LIBRARIES}});
 
 		#
 		# add the LIBARARIES of each subsysetm in the @SUBSYSTEMS_LIST
@@ -446,6 +428,7 @@ sub _do_depend_binaries($)
 		#
 		@{$CTX->{DEPEND}{BINARIES}{$key}{SUBSYSTEMS_LIST}} = @SUBSYSTEMS_LIST;
 		@{$CTX->{DEPEND}{BINARIES}{$key}{LIBRARIES_LIST}} = @LIBRARIES_LIST;
+		@{$CTX->{DEPEND}{BINARIES}{$key}{INIT_FUNCTIONS}} = @INIT_FUNCTIONS;
 	}
 
 	return;
diff --git a/source4/build/smb_build/public.m4 b/source4/build/smb_build/public.m4
index 479ca9685d..74e54b0a0e 100644
--- a/source4/build/smb_build/public.m4
+++ b/source4/build/smb_build/public.m4
@@ -217,6 +217,7 @@ SMB_INFO_MODULES="$SMB_INFO_MODULES
 @{\$SMB_BUILD_CTX->{INPUT}{MODULES}{$1}{ADD_OBJ_FILES}} = str2array(\"$5\");
 @{\$SMB_BUILD_CTX->{INPUT}{MODULES}{$1}{REQUIRED_LIBRARIES}} = str2array(\"$6\");
 @{\$SMB_BUILD_CTX->{INPUT}{MODULES}{$1}{REQUIRED_SUBSYSTEMS}} = str2array(\"$7\");
+\$SMB_BUILD_CTX->{INPUT}{MODULES}{$1}{INIT_FUNCTION} = \"\";
 #
 \$SMB_BUILD_CTX->{INPUT}{MODULES}{$1}{CHOSEN_BUILD} = \"$[SMB_MODULE_][$1]\";
 # End MODULE $1
@@ -255,6 +256,7 @@ SMB_INFO_MODULES="$SMB_INFO_MODULES
 @{\$SMB_BUILD_CTX->{INPUT}{MODULES}{$1}{ADD_OBJ_FILES}} = module_get_array(\"$4\", \"$1\", \"ADD_OBJ_FILES\");
 @{\$SMB_BUILD_CTX->{INPUT}{MODULES}{$1}{REQUIRED_LIBRARIES}} = module_get_array(\"$4\", \"$1\", \"REQUIRED_LIBRARIES\");
 @{\$SMB_BUILD_CTX->{INPUT}{MODULES}{$1}{REQUIRED_SUBSYSTEMS}} = module_get_array(\"$4\", \"$1\", \"REQUIRED_SUBSYSTEMS\");
+\$SMB_BUILD_CTX->{INPUT}{MODULES}{$1}{INIT_FUNCTION} = module_get_var(\"$4\", \"$1\", \"INIT_FUNCTION\");
 #
 \$SMB_BUILD_CTX->{INPUT}{MODULES}{$1}{CHOSEN_BUILD} = \"$[SMB_MODULE_][$1]\";
 # End MODULE $1
@@ -303,6 +305,7 @@ SMB_INFO_SUBSYSTEMS="$SMB_INFO_SUBSYSTEMS
 \$SMB_BUILD_CTX->{INPUT}{SUBSYSTEMS}{$1}{NAME} = \"$1\";
 @{\$SMB_BUILD_CTX->{INPUT}{SUBSYSTEMS}{$1}{INIT_OBJ_FILES}} = str2array(\"$2\");
 @{\$SMB_BUILD_CTX->{INPUT}{SUBSYSTEMS}{$1}{ADD_OBJ_FILES}} = str2array(\"$3\");
+\$SMB_BUILD_CTX->{INPUT}{SUBSYSTEMS}{$1}{INIT_FUNCTION} = \"\";
 @{\$SMB_BUILD_CTX->{INPUT}{SUBSYSTEMS}{$1}{REQUIRED_LIBRARIES}} = str2array(\"$4\");
 @{\$SMB_BUILD_CTX->{INPUT}{SUBSYSTEMS}{$1}{REQUIRED_SUBSYSTEMS}} = str2array(\"$5\");
 #
@@ -336,6 +339,7 @@ SMB_INFO_SUBSYSTEMS="$SMB_INFO_SUBSYSTEMS
 @{\$SMB_BUILD_CTX->{INPUT}{SUBSYSTEMS}{$1}{ADD_OBJ_FILES}} = subsystem_get_array(\"$2\", \"$1\", \"ADD_OBJ_FILES\");
 @{\$SMB_BUILD_CTX->{INPUT}{SUBSYSTEMS}{$1}{REQUIRED_LIBRARIES}} = subsystem_get_array(\"$2\", \"$1\", \"REQUIRED_LIBRARIES\");
 @{\$SMB_BUILD_CTX->{INPUT}{SUBSYSTEMS}{$1}{REQUIRED_SUBSYSTEMS}} = subsystem_get_array(\"$2\", \"$1\", \"REQUIRED_SUBSYSTEMS\");
+\$SMB_BUILD_CTX->{INPUT}{SUBSYSTEMS}{$1}{INIT_FUNCTION} = subsystem_get_var(\"$2\", \"$1\", \"INIT_FUNCTION\");
 #
 \$SMB_BUILD_CTX->{INPUT}{SUBSYSTEMS}{$1}{ENABLE} = \"$[SMB_SUBSYSTEM_ENABLE_][$1]\";
 \$SMB_BUILD_CTX->{INPUT}{SUBSYSTEMS}{$1}{NOPROTO} = \"$[SMB_SUBSYSTEM_NOPROTO_][$1]\";
diff --git a/source4/build/smb_build/smb_build_h.pl b/source4/build/smb_build/smb_build_h.pl
index 59e96574bd..cd6cb29525 100644
--- a/source4/build/smb_build/smb_build_h.pl
+++ b/source4/build/smb_build/smb_build_h.pl
@@ -36,15 +36,40 @@ sub _prepare_smb_build_h($)
 		# Static modules
 		# 
 		$DEFINE->{COMMENT} = "SUBSYSTEM $NAME INIT";
-		$DEFINE->{KEY} = "static_init_$name";
+		$DEFINE->{KEY} = $name . "_init_static_modules";
 		$DEFINE->{VAL} = "do { \\\n";
-		foreach my $subkey (@{$CTX->{DEPEND}{SUBSYSTEMS}{$key}{STATIC_MODULES_LIST}}) {
-			$DEFINE->{VAL} .= "\t\t$subkey\_init(); \\\n";
+		foreach my $subkey (@{$CTX->{DEPEND}{SUBSYSTEMS}{$key}{INIT_FUNCTIONS}}) {
+			$DEFINE->{VAL} .= "\t\textern NTSTATUS $subkey(void); \\\n";
+		}
+		
+		foreach my $subkey (@{$CTX->{DEPEND}{SUBSYSTEMS}{$key}{INIT_FUNCTIONS}}) {
+			$DEFINE->{VAL} .= "\t\t$subkey(); \\\n";
 		}
 		$DEFINE->{VAL} .= "\t} while(0)";
 		
 		push(@{$CTX->{OUTPUT}{SMB_BUILD_H}},$DEFINE);
+	}
 
+	#
+	# loop over all binaries
+	#
+	foreach my $key (sort keys %{$CTX->{DEPEND}{BINARIES}}) {
+		my $NAME = $CTX->{INPUT}{BINARIES}{$key}{NAME};
+		my $DEFINE = ();
+		my $name = lc($NAME);
+
+		#
+		# Static modules
+		# 
+		$DEFINE->{COMMENT} = "BINARY $NAME INIT";
+		$DEFINE->{KEY} = $name . "_init_subsystems";
+		$DEFINE->{VAL} = "do { \\\n";
+		foreach my $subkey (@{$CTX->{DEPEND}{BINARIES}{$key}{INIT_FUNCTIONS}}) {
+			$DEFINE->{VAL} .= "\t\tif (NT_STATUS_IS_ERR($subkey())) exit(1); \\\n";
+		}
+		$DEFINE->{VAL} .= "\t} while(0)";
+		
+		push(@{$CTX->{OUTPUT}{SMB_BUILD_H}},$DEFINE);
 	}
 
 	#
@@ -54,10 +79,13 @@ sub _prepare_smb_build_h($)
 		next if ($CTX->{INPUT}{MODULES}{$key}{BUILD} ne "SHARED");
 
 		my $name = $CTX->{INPUT}{MODULES}{$key}{NAME};
+		my $func = $CTX->{INPUT}{MODULES}{$key}{INIT_FUNCTION};
+		next if $func eq "";
+
 		my $DEFINE = ();
 		
 		$DEFINE->{COMMENT} = "$name is built shared";
-		$DEFINE->{KEY} = "$name\_init";
+		$DEFINE->{KEY} = $func;
 		$DEFINE->{VAL} = "init_module";
 
 		push(@{$CTX->{OUTPUT}{SMB_BUILD_H}},$DEFINE);