Can't build loadable module for 2.6.kernel

Can't build loadable module for 2.6.kernel

[Carlos Munoz]

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Hi all,

I hope this is the right forum for this question.

I'm trying to build a loadable module for a telephony card that includes 
several files. Some of the files are source files (written by me) and 
some are object files (provided by the chip vendor). I'm unable to link 
the vendor object files with the target.

Make displays the following error:
make[4]: *** No rule to make target 
`drivers/telephony/mrvphone/apicnt.s', needed by 
`drivers/telephony/mrvphone/apicnt.o'.  Stop.

The makefile has the following rule to build apicnt.o:
apicnt.o: apicnt.o.shipped
    cp apicnt.o.shipped apicnt.o

I have also included the whole Makefile with this email.

Thanks in advance,


Carlos Munoz


[-- Attachment #2: Makefile --]
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#
# Makefile for the phone_mrvl driver loadable module
#
TARGET = phone_mrvl.o

obj-$(CONFIG_PHONE_MARVELL) = phone_mrvl.o

ifeq ($(CONFIG_PHONE_LEGERITY),y)
phone_mrvl-objs = mrvphone.o slic.o legerity.o vp_hal.o sys_service.o apicnt.o apiinit.o apiquery.o vp_api.o vp_api_common.o mvutils.o
endif

ifeq ($(CONFIG_PHONE_PROSLIC),y)
phone_mrvl-objs = mrvphone.o proslic.o
endif

CFLAGS += -D__linux__
EXTRA_CFLAGS += -Idrivers/telephony/mrvphone
EXTRA_CFLAGS += -DNDEBUG -Dlinux -D__linux__ -Dunix -DEMBED -DLINUX -DHOST_LE

ifeq ($(CONFIG_PHONE_LEGERITY),y)
EXTRA_CFLAGS += -D__LEGERITY__
endif
ifeq ($(CONFIG_PHONE_PROSLIC),y)
EXTRA_CFLAGS += -D__PROSLIC__
endif

all: $(TARGET)

$(TARGET): $(OBJS)
	$(LD) -r $(OBJS) -o $(TARGET)

clean:
	-rm -f $(TARGET) *.elf *.gdb *.o

apicnt.o: apicnt.o.shipped
	cp apicnt.o.shipped apicnt.o

Re: Can't build loadable module for 2.6.kernel

[Sam Ravnborg]

On Mon, Dec 12, 2005 at 11:52:24AM -0800, Carlos Munoz wrote:
> Hi all,
> 
> I hope this is the right forum for this question.
Yes.

> The makefile has the following rule to build apicnt.o:
> apicnt.o: apicnt.o.shipped
>    cp apicnt.o.shipped apicnt.o

This is wrong. kbuild has knowledge how to copy a file named:
apicnt.o_shippd to apicnt.o
So you renamed the supplied .o fiel to apicnt.o_shipped and delte your
own rule.


> #
> # Makefile for the phone_mrvl driver loadable module
> #
> TARGET = phone_mrvl.o
> 
> obj-$(CONFIG_PHONE_MARVELL) = phone_mrvl.o
> 
> ifeq ($(CONFIG_PHONE_LEGERITY),y)
> phone_mrvl-objs = mrvphone.o slic.o legerity.o vp_hal.o sys_service.o apicnt.o apiinit.o apiquery.o vp_api.o vp_api_common.o mvutils.o
> endif
Please do:
phone_mrvl-$(CONFIG_PHONE_LEGERITY) := mrvphone.o slic.o legerity.o 
phone_mrvl-$(CONFIG_PHONE_LEGERITY) += vp_hal.o sys_service.o apicnt.o 
phone_mrvl-$(CONFIG_PHONE_LEGERITY) += apiinit.o apiquery.o vp_api.o
phone_mrvl-$(CONFIG_PHONE_LEGERITY) += vp_api_common.o mvutils.o

> 
> ifeq ($(CONFIG_PHONE_PROSLIC),y)
> phone_mrvl-objs = mrvphone.o proslic.o
> endif
phone_mrvl-$(CONFIG_PHONE_PROSLIC) += mrvphone.o proslic.o

> 
> CFLAGS += -D__linux__
> EXTRA_CFLAGS += -Idrivers/telephony/mrvphone
> EXTRA_CFLAGS += -DNDEBUG -Dlinux -D__linux__ -Dunix -DEMBED -DLINUX -DHOST_LE
> 
> ifeq ($(CONFIG_PHONE_LEGERITY),y)
> EXTRA_CFLAGS += -D__LEGERITY__
> endif
> ifeq ($(CONFIG_PHONE_PROSLIC),y)
> EXTRA_CFLAGS += -D__PROSLIC__
> endif
Here you could do:
extra-cflags-$(CONFIG_PHONE_LEGERITY) += -D__LEGERITY__
extra-cflags-$(CONFIG_PHONE_PROSLIC)  += -D__PROSLIC__
EXTRA_CFLAGS += $(extra-cflags-y)

Please delete the rest - it is not needed.
> all: $(TARGET)
> 
> $(TARGET): $(OBJS)
> 	$(LD) -r $(OBJS) -o $(TARGET)
> 
> clean:
> 	-rm -f $(TARGET) *.elf *.gdb *.o
> 
> apicnt.o: apicnt.o.shipped
> 	cp apicnt.o.shipped apicnt.o

When you build your module use:
make -C $PATH_TO_COMPILED_KERNEL M=`pwd`

See also Documentation/kbuild/modules.txt for further reference.

	Sam

Re: Can't build loadable module for 2.6.kernel

[Carlos Munoz]

Hi Sam,

Thanks to your help and the kbuild documentation you referred me to I 
was able to build the module.

Thanks again,


Carlos Munoz

Sam Ravnborg wrote:

>On Mon, Dec 12, 2005 at 11:52:24AM -0800, Carlos Munoz wrote:
>  
>
>>Hi all,
>>
>>I hope this is the right forum for this question.
>>    
>>
>Yes.
>
>  
>
>>The makefile has the following rule to build apicnt.o:
>>apicnt.o: apicnt.o.shipped
>>   cp apicnt.o.shipped apicnt.o
>>    
>>
>
>This is wrong. kbuild has knowledge how to copy a file named:
>apicnt.o_shippd to apicnt.o
>So you renamed the supplied .o fiel to apicnt.o_shipped and delte your
>own rule.
>
>
>  
>
>>#
>># Makefile for the phone_mrvl driver loadable module
>>#
>>TARGET = phone_mrvl.o
>>
>>obj-$(CONFIG_PHONE_MARVELL) = phone_mrvl.o
>>
>>ifeq ($(CONFIG_PHONE_LEGERITY),y)
>>phone_mrvl-objs = mrvphone.o slic.o legerity.o vp_hal.o sys_service.o apicnt.o apiinit.o apiquery.o vp_api.o vp_api_common.o mvutils.o
>>endif
>>    
>>
>Please do:
>phone_mrvl-$(CONFIG_PHONE_LEGERITY) := mrvphone.o slic.o legerity.o 
>phone_mrvl-$(CONFIG_PHONE_LEGERITY) += vp_hal.o sys_service.o apicnt.o 
>phone_mrvl-$(CONFIG_PHONE_LEGERITY) += apiinit.o apiquery.o vp_api.o
>phone_mrvl-$(CONFIG_PHONE_LEGERITY) += vp_api_common.o mvutils.o
>
>  
>
>>ifeq ($(CONFIG_PHONE_PROSLIC),y)
>>phone_mrvl-objs = mrvphone.o proslic.o
>>endif
>>    
>>
>phone_mrvl-$(CONFIG_PHONE_PROSLIC) += mrvphone.o proslic.o
>
>  
>
>>CFLAGS += -D__linux__
>>EXTRA_CFLAGS += -Idrivers/telephony/mrvphone
>>EXTRA_CFLAGS += -DNDEBUG -Dlinux -D__linux__ -Dunix -DEMBED -DLINUX -DHOST_LE
>>
>>ifeq ($(CONFIG_PHONE_LEGERITY),y)
>>EXTRA_CFLAGS += -D__LEGERITY__
>>endif
>>ifeq ($(CONFIG_PHONE_PROSLIC),y)
>>EXTRA_CFLAGS += -D__PROSLIC__
>>endif
>>    
>>
>Here you could do:
>extra-cflags-$(CONFIG_PHONE_LEGERITY) += -D__LEGERITY__
>extra-cflags-$(CONFIG_PHONE_PROSLIC)  += -D__PROSLIC__
>EXTRA_CFLAGS += $(extra-cflags-y)
>
>Please delete the rest - it is not needed.
>  
>
>>all: $(TARGET)
>>
>>$(TARGET): $(OBJS)
>>	$(LD) -r $(OBJS) -o $(TARGET)
>>
>>clean:
>>	-rm -f $(TARGET) *.elf *.gdb *.o
>>
>>apicnt.o: apicnt.o.shipped
>>	cp apicnt.o.shipped apicnt.o
>>    
>>
>
>When you build your module use:
>make -C $PATH_TO_COMPILED_KERNEL M=`pwd`
>
>See also Documentation/kbuild/modules.txt for further reference.
>
>	Sam
>  
>

Re: Can't build loadable module for 2.6.kernel

[Arjan van de Ven]

On Mon, 2005-12-12 at 11:52 -0800, Carlos Munoz wrote:
> Hi all,
> 
> I hope this is the right forum for this question.
> 
> I'm trying to build a loadable module for a telephony card that includes 
> several files. Some of the files are source files (written by me) and 
> some are object files (provided by the chip vendor). I'm unable to link 
> the vendor object files with the target.

you might want to ask them for the source, lots easier that way as well.