Re: The assemble file under the driver folder can not be recognized when the driver is built as module

["linux-os \(Dick Johnson\)" <linux-os@analogic.com>]

On Mon, 10 Apr 2006, Sam Ravnborg wrote:

> On Mon, Apr 10, 2006 at 02:04:59PM -0400, linux-os (Dick Johnson) wrote:
>
>> Can't he just put his own private compile definition in his
>> own Makefile?
>>
>> %.o:	%.S
>>  	as -o $@ $<
>
> That would never generate a module anyway. And kbuild support building
> .o from .S with all the kbuild argument chechking etc.
> Doing it so would be wrong.
>
> 	Sam
>


Really?? Here is a Makefile that has been known to work for sometime.
As you can clearly see, it has lots of ".S" files. The last compile
was on Linux-2.6.15.4. If current kernel building procedures prevents
the assembly of assembly-language files and requires that the kernel
modules be written entirely in 'C', then it is broken beyond all
belief and must be fixed.


#
#    Copyright(c) 2004  Analogic Corporation
#
#    This program may be distributed under the GNU Public License
#    version 2, as published by the Free Software Foundation, Inc.,
#    59 Temple Place, Suite 330 Boston, MA, 02111.
#
#    Project Makefile for kernel versions over 6
#    Created 05-OCT-2004    Richard B. Johnson
#
#    Note that macro "obj" refers to this directory when
#    make is executing from the kernel directory.
#

%.o:%.S
 		as -o $@ $<

VERS := $(shell uname -r)
CDIR := $(shell pwd)
MKNOD = /usr/bin/mknodp
FNAM = HeavyLink
EXTRA_CFLAGS += -DKVER6 -DMAJOR_NR=178 -DMODNAME="\"$(FNAM)"\"

OBJS =	datalink.o	min_size_t.o	license.o	ram_test.o\
 	rwcheck.o	seeprom.o	rwreg.o		rnd.o\
 	rdtsc.o		dma_buffer.o	ioctltxt.o

all:		chkhdrs
 		@./chkhdrs
 		@make V=1 -C /usr/src/linux-$(VERS) SUBDIRS=$(CDIR) modules
 		strip -x -R .note -R .comment $(FNAM).ko

obj-m		:= 	$(FNAM).o
$(FNAM)-objs	:=	$(OBJS)
$(obj)/min_size_t.o:	$(obj)/min_size_t.S	$(obj)/Makefile
$(obj)/license.o:	$(obj)/license.c	$(obj)/Makefile
$(obj)/ram_test.o:	$(obj)/ram_test.c	$(obj)/Makefile
$(obj)/rwcheck.o:	$(obj)/rwcheck.S	$(obj)/Makefile
$(obj)/rwreg.o:		$(obj)/rwreg.S		$(obj)/Makefile
$(obj)/rnd.o:		$(obj)/rnd.S		$(obj)/Makefile
$(obj)/rdtsc.o:		$(obj)/rdtsc.S		$(obj)/Makefile
$(obj)/ioctltxt.o:	$(obj)/ioctltxt.s
$(obj)/datalink.o:	$(obj)/datalink.c	$(obj)/datalink.h\
 			$(obj)/config.h		$(obj)/types.h\
 			$(obj)/plx.h		$(obj)/dlb.h\
 			$(obj)/ver.h		$(obj)/Makefile\
 			$(SUBDIRS)/bool.h	$(SUBDIRS)/kver.h
$(obj)/dma_buffer.o:	$(obj)/dma_buffer.c	$(obj)/datalink.h\
 			$(obj)/config.h		$(obj)/Makefile\
 			$(SUBDIRS)/bool.h
$(obj)/seeprom.o:	$(obj)/seeprom.c	$(obj)/plx.h\
 			$(obj)/types.h		$(obj)/Makefile

chkhdrs:	../tools/chkhdrs.c
 	gcc -O2 -Wall -o chkhdrs ../tools/chkhdrs.c

$(SUBDIRS)/chktrue:	$(SUBDIRS)/../tools/chktrue.c
 	gcc -O2 -Wall -o $(SUBDIRS)/chktrue $(SUBDIRS)/../tools/chktrue.c

$(SUBDIRS)/bool.h:	$(SUBDIRS)/chktrue
 	cd $(SUBDIRS) ; $(SUBDIRS)/chktrue

$(SUBDIRS)/mkioctltxt:	$(SUBDIRS)/mkioctltxt.c
 	gcc -O2 -Wall -o $(SUBDIRS)/mkioctltxt $(SUBDIRS)/mkioctltxt.c

$(SUBDIRS)/ioctltxt.s:	$(SUBDIRS)/mkioctltxt $(SUBDIRS)/datalink.h
 	cd $(SUBDIRS) ; $(SUBDIRS)/mkioctltxt

$(SUBDIRS)/chkver:	$(SUBDIRS)/../tools/chkver.c
 	gcc -O2 -Wall -o $(SUBDIRS)/chkver $(SUBDIRS)/../tools/chkver.c

$(SUBDIRS)/kver.h:	$(SUBDIRS)/chkver
 	cd $(SUBDIRS) ; $(SUBDIRS)/chkver $(VERS)


install:	install.sh $(MKNOD)
 	@sh install.sh install


$(MKNOD):	../tools/mknodp.c
 	make -C ../tools

clean:
 	rm -rf $(OBJS) $(FNAM).ko $(FNAM).mod.c $(FNAM)*.o \.*.cmd \
chkhdrs \.tmp_versions chktrue bool.h kver.h *.s mkioctltxt chkver
 		@sh install.sh clean




Cheers,
Dick Johnson
Penguin : Linux version 2.6.15.4 on an i686 machine (5589.42 BogoMips).
Warning : 98.36% of all statistics are fiction, book release in April.
_


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