Re: Missing Makefile

[Jerry Stuckle <jstuckle@attglobal.net>]

On 8/2/2013 4:01 PM, Tom H wrote:
> This is on sid, not wheezy (I don't have a wheezy box with compilation
> tools installed).
>
>
> [root@localhost:/usr/src/jstuckle]# aptitude search -F '%c %p %v %V'
> linux-image-3
> i linux-image-3.10-1-amd64 3.10.3-1       3.10.3-1
> p linux-image-3.10-1-amd64-dbg <none>         3.10.3-1
>
> [root@localhost:/usr/src/jstuckle]# aptitude search -F '%c %p %v %V'
> linux-headers-3
> p linux-headers-3.10-1-all <none>         3.10.3-1
> p linux-headers-3.10-1-all-amd64 <none>         3.10.3-1
> i linux-headers-3.10-1-amd64 3.10.3-1       3.10.3-1
> i linux-headers-3.10-1-common 3.10.3-1       3.10.3-1
>
> [root@localhost:/usr/src/jstuckle]# aptitude search -F '%c %p %v %V'
> linux-kbuild-3
> i linux-kbuild-3.10 3.10-2         3.10-2
>
>
> [root@localhost:/usr/src/jstuckle]# ls
> /usr/src/linux-headers-3.10-1-common/scripts
> basic          depmod.sh                 genksyms Makefile.build
> makelst          namespace.pl
> bin2c          gcc-goto.sh                 kallsyms Makefile.clean
> mksysmap          patch-kernel
> checkincludes.pl  gcc-version.sh             Kbuild.include
> Makefile.host     mkuboot.sh      pnmtologo
> checkstack.pl      gcc-x86_32-has-stack-protector.sh  kconfig
> Makefile.lib      mkversion      setlocalversion
> checkversion.pl   gcc-x86_64-has-stack-protector.sh kernel-doc
> Makefile.modinst  mod          ver_linux
> conmakehash      gen_initramfs_list.sh             Lindent
> Makefile.modpost  module-common.lds
>
> [root@localhost:/usr/src/jstuckle]# stat
> /usr/src/linux-headers-3.10-1-common/scripts
> File: ‘/usr/src/linux-headers-3.10-1-common/scripts’ ->
> ‘../../lib/linux-kbuild-3.10/scripts’
> <snip>
>
>
> I can compile a basic module using your Makefile. Can you?
>
>
> [root@localhost:/usr/src/jstuckle]# ls
> Makefile  mymodule.c
>
> [root@localhost:/usr/src/jstuckle]# cat Makefile
> obj-m = mymodule.o
> KVERSION = $(shell uname -r)
> all:
>      make -C /lib/modules/$(KVERSION)/build M=$(PWD) modules
> clean:
>      make -C /lib/modules/$(KVERSION)/build M=$(PWD) clean
>
> [root@localhost:/usr/src/jstuckle]# cat mymodule.c
> #include <linux/module.h>
> #include <linux/kernel.h>
> MODULE_LICENSE("GPL");
> int init_module(void)
> {
>      printk(KERN_ALERT "Hello world\n");
>      return 0;
> }
> void cleanup_module(void)
> {
>      printk(KERN_ALERT "Goodbye world\n");
> }
>
> [root@localhost:/usr/src/jstuckle]# make
> make -C /lib/modules/3.10-1-amd64/build M=/usr/src/jstuckle modules
> make[1]: Entering directory `/usr/src/linux-headers-3.10-1-amd64'
> CC [M]  /usr/src/jstuckle/mymodule.o
> Building modules, stage 2.
> MODPOST 1 modules
> CC      /usr/src/jstuckle/mymodule.mod.o
> LD [M]  /usr/src/jstuckle/mymodule.ko
> make[1]: Leaving directory `/usr/src/linux-headers-3.10-1-amd64'
>
> [root@localhost:/usr/src/jstuckle]# ls
> Makefile  modules.order  Module.symvers  mymodule.c  mymodule.ko
> mymodule.mod.c  mymodule.mod.o  mymodule.o
>
> [root@localhost:/usr/src/jstuckle]# insmod mymodule.ko
>
> [root@localhost:/usr/src/jstuckle]# grep mymodule /proc/modules
> mymodule 12388 0 - Live 0xffffffffa02e5000 (PO)

Tom,

Thanks for trying to help.

No, the make fails with a missing Makefile, as indicated in my original 
post.