Re: Module names?

[Andreas Hess <a.hess@xxxxxxxxxx>]

In detail, the attached Makefile works for kernels 2.6.5 and below. But when 
running a newer kernel (2.6.8 or 2.6.10) then compilation and installation 
via insmod works fine. But unfortunately the name which is depicted by
lsmod is: KBUILD_MODNAME.

The Makefile calls the script "modpost" which is kernel specific.  
Furthermore, I tried to figure out what the script "modpost" is doing in 
detail but ...
So I wonder what the script is doing and if the script might produce the 
error.

Thanks for helping
regards Andreas


ifndef MODULE
   MODULE = fctrl fidran
   EXEC   = fman generic
endif

ifndef KERNELDIR
   KERNELDIR = /usr/src/linux
endif

GCC = -D__KERNEL__ -DMODULE -DEXPORT_SYMTAB \
      -nostdinc -iwithprefix include -Wall -Wstrict-prototypes -Wno-trigraphs\
      -fno-strict-aliasing -fno-common -pipe -mpreferred-stack-boundary=2 \
      -march=`uname -m` -O2 -fomit-frame-pointer 

ifdef CONFIG_SMP
   GCC += -D__SMP__ -DSMP
endif

ifdef CONFIG_MODVERSIONS
   GCC += -DMODVERSIONS -include $(KERNELDIR)/include/linux/modversions.h
endif

INCLUDE = -I$(KERNELDIR) \
          -I/lib/modules/`uname -r`/build/include \
          -I/lib/modules/`uname -r`/build/include/asm-i386/mach-default \
          -I. -I..

ifeq ($(KERNELDIR)/.config,$(wildcard $(KERNELDIR))/.config)
   include $(KERNELDIR)/.config
endif

compile: $(MODULE:=.o) $(EXEC)

.c.o:
        @echo making $(<:.c=.ko)
        @gcc $(GCC) -DKBUILD_BASENAME=$(<:.c=) -DKBUILD_MODNAME=$(<:.c=) 
$(INCLUDE) -c -o $(<:.c=.o) $<
        @/lib/modules/`uname -r`/build/scripts/modpost $(<:.c=.o)
        @gcc $(GCC) -DKBUILD_BASENAME=$(<:.c=) $(INCLUDE) -c -o $(<:.c=.mod.o) 
$(<:.c=.mod.c)
        @ld -r -o $(<:.c=.ko) $(<:.c=.o) $(<:.c=.mod.o)
        @rm -f $(<:.c=.o) $(<:.c=.mod.*)

$(MODULE:=.ko):
        @echo making $@
        @gcc $(GCC) -DKBUILD_BASENAME=$(@:.ko=) -DKBUILD_MODNAME=$(@:.ko=) 
$(INCLUDE) -c -o $(@:.ko=.o) $(@:.ko=.c)
        @/lib/modules/`uname -r`/build/scripts/modpost $(@:.ko=.o)
        @gcc $(GCC) -DKBUILD_BASENAME=$(@:.ko=) $(INCLUDE) -c -o 
$(@:.ko=.mod.o) $(@:.ko=.mod.c)
        @ld -r -o $@ $(@:.ko=.o) $(@:.ko=.mod.o)
        @rm -f $(@:.ko=.o) $(@:.ko=.mod.*)

$(MODULE):
        @echo making $(@:=.ko)
        @gcc $(GCC) -DKBUILD_BASENAME=$@ -DKBUILD_MODNAME=$@ $(INCLUDE) -c -o 
$(@:=.o) $(@:=.c)
        @/lib/modules/`uname -r`/build/scripts/modpost $(@:=.o)
        @gcc $(GCC) -DKBUILD_BASENAME=$@ $(INCLUDE) -c -o $(@:=.mod.o) 
$(@:=.mod.c)
        @ld -r -o $(@:=.ko) $(@:=.o) $(@:=.mod.o)
        @rm -f $(@:=.o) $(@:=.mod.*)

$(EXEC):
        @echo making $@
        @gcc -o $@ $(@:=.c)

clean:
        @rm -f *~ depend core *.o *.ko *.mod.* fman generic



--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive:       http://mail.nl.linux.org/kernelnewbies/
FAQ:           http://kernelnewbies.org/faq/