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Darwin 0.2 Driver Kit

#
# Common makefile fragment for use by driverkit-based driver projects.
#

#
# OBJROOT and SYMROOT are overridden by RC tools for builds from read-only
# source.
#
SRCROOT = .
OBJROOT = .
SYMROOT = .
OFILE_DIR = $(OBJROOT)
SYM_DIR = $(SYMROOT)/sym
PRODUCT_ROOT = $(SYMROOT)
TAR = /usr/bin/gnutar
RM = /bin/rm
ifneq "" "$(wildcard /bin/mkdirs)"
  MKDIRS = /bin/mkdirs
else
  MKDIRS = /bin/mkdir -p
endif
#
# Macros used for compiling.
#
DRIVER_CFILES= $(COMMON_CFILES) $(OTHER_CFILES)
DRIVER_MFILES= $(COMMON_MFILES) $(OTHER_MFILES)

OFILES= 	$(DRIVER_CFILES:.c=.o) $(DRIVER_MFILES:.m=.o) $(OTHER_OFILES) $(INSTANCE_VAR).o

#
# For installsrc and tags.
#
COMMONSOURCE=  $(DRIVER_CFILES) $(DRIVER_MFILES) \
	$(COMMON_PUBLIC_HFILES) $(COMMON_PRIVATE_HFILES) $(OTHER_SOURCE) 


VPATH = $(PRODUCT_ROOT):$(OFILE_DIR):$(SYM_DIR):$(OPT_VPATH)

all tool:: project tags always

#
# For building kern-loadable modules.
#
relocrelease: $(SYMROOT) $(OBJROOT) always
	@echo '******** Building $(BUILD_NAME) ********';	\
	if [ -n "$(ARCHS)" ]; then				\
	    my_rc_cflags="";					\
	    for i in "$(ARCHS)"; do				\
	    	my_rc_cflags="$$my_rc_cflags -arch $$i";	\
	    done;						\
	else							\
	    my_rc_cflags=$(RC_CFLAGS);				\
	fi;							\
	$(MAKE) $(BUILD_NAME)					\
	    "OBJROOT=$(OBJROOT)"				\
	    "SYMROOT=$(SYMROOT)"				\
	    "PRODUCT_ROOT=$(PRODUCT_ROOT)"				\
	    "OFILE_DIR=$(OFILE_DIR)/relocrelease"		\
	    "SYM_DIR=$(SYM_DIR)"				\
	    "LIBS=$(RELEASE_KERN_LIBS)"				\
	    "LDFLAGS= $(KL_RELEASE_FLAGS) $$my_rc_cflags"	\
	    "EXTRA_CFLAGS=$(RELEASE_CFLAGS) $$my_rc_cflags $(OTHER_CFLAGS)"

#
# For building debug versions of kern-loadable modules.
#
relocdebug: $(SYMROOT) $(OBJROOT) always
	@echo '******** Building debug $(BUILD_NAME) ********';	\
	if [ -n "$(ARCHS)" ]; then				\
	    my_rc_cflags="";					\
	    for i in "$(ARCHS)"; do				\
	    	my_rc_cflags="$$my_rc_cflags -arch $$i";	\
	    done;						\
	else							\
	    my_rc_cflags=$(RC_CFLAGS);				\
	fi;							\
	$(MAKE) $(BUILD_NAME)					\
	    "OBJROOT=$(OBJROOT)"				\
	    "SYMROOT=$(SYMROOT)"				\
	    "PRODUCT_ROOT=$(PRODUCT_ROOT)"			\
	    "OFILE_DIR=$(OFILE_DIR)/relocdebug"			\
	    "SYM_DIR=$(SYM_DIR)"				\
	    "LIBS=$(DEBUG_KERN_LIBS)"				\
	    "LDFLAGS= $(KL_DEBUG_FLAGS) $$my_rc_cflags"		\
	    "EXTRA_CFLAGS=$(DEBUG_CFLAGS) $$my_rc_cflags $(OTHER_CFLAGS)"

project: relocrelease

debug: relocdebug

installsrc:: SRCROOT
	@($(MAKE) copy "DEST=$(SRCROOT)")

copy:: 	DEST $(DEST)
	$(TAR) cf - $(COMMONSOURCE) | (cd $(DEST); $(TAR) xpBf -)
	chown -Rf root.wheel $(DEST)	

installhdrs::	DSTROOT $(DSTROOT)$(PUBLIC_INSTALL_HDR_DIR)
	@if [ -n "${COMMON_PUBLIC_HFILES}" ]; 		\
	then						\
	    install -c -m 644 $(COMMON_PUBLIC_HFILES)	\
	    	$(DSTROOT)$(PUBLIC_INSTALL_HDR_DIR);	\
	fi
	
$(OFILE_DIR) $(PRODUCT_ROOT) $(DSTROOT)$(PUBLIC_INSTALL_HDR_DIR) \
$(OBJROOT) $(SRCROOT) $(SYMROOT) $(DEST):
	@$(MKDIRS) $@
	
tags:	$(OBJROOT) always
	$(RM) -f tags
	ctags -d -o $(OBJROOT)/tags $(COMMONSOURCE)

always:

depend::

clean:
	$(RM) -rf $(OFILE_DIR)/*relocdebug  $(OFILE_DIR)/*relocrelease \
	    $(BUILD_NAME) $(SYM_DIR) *.d Makedep *~ tags	\
	    $(OTHER_CLEAN_FILES) 

#
# Build kern-loadable relocatable.
# Main Makefile Must define:
#	SERVER_NAME
#	INSTANCE_VAR
#
# May define:
#	OTHER_DEPENDS (typically which will force a mig run). 
#
$(BUILD_NAME): $(PRODUCT_ROOT) $(OFILE_DIR) $(OFILES) \
		$(LOAD_COMMAND_FILE) $(UNLOAD_COMMAND_FILE) $(OTHER_DEPENDS)
	$(KL_LD) $(LDFLAGS) -o $(PRODUCT_ROOT)/$@ $(OFILES) $(LIBS)	\
		-n $(SERVER_NAME) $(LOAD_COMMANDS) $(UNLOAD_COMMANDS) -i $(INSTANCE_VAR) 

#
# Make the global instance
#
$(INSTANCE_VAR).m:
	@echo Creating $(INSTANCE_VAR).m; \
	echo "#import <objc/Object.h>\n#import <kernserv/kern_server_types.h>\n\nkern_server_t $(INSTANCE_VAR);\n\n@interface $(SERVER_NAME)KernelServerInstance : Object\n{}\n+ (kern_server_t *)kernelServerInstance;\n@end\n\n@implementation $(SERVER_NAME)KernelServerInstance\n+ (kern_server_t *)kernelServerInstance\n{\n\treturn &$(INSTANCE_VAR);\n}\n@end\n" > $(OFILE_DIR)/$@

strip::
	@echo $(STRIP) $(RELOCATABLE_STRIP_OPTS)			\
		$(DSTROOT)$(PARENT_DIR)/$(NAME);			\
	$(STRIP) $(RELOCATABLE_STRIP_OPTS) 				\
		$(DSTROOT)$(PARENT_DIR)/$(NAME)

#
# The additional -I here picks up possible header files which are
# created in the build directory (say, by MIG).
#
.c.o .m.o:
	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c $< -I$(OFILE_DIR) \
	    -o $(OFILE_DIR)/$@ -dependency-file $(OFILE_DIR)/$(*F).d

SRCROOT DSTROOT DEST:
	@if [ ! -n "${$@}" ];		\
	then				\
	    echo Must define $@;	\
	    exit 1;			\
	fi

-include Makedep

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