Now that I have a bare-bones LFS (6.7) system running, I've begun to use it
to learn the rudiments of kernel module programming, using the Linux Kernel
Programming Guide (May 2007) as a guide. But the "Hello, World" project
fails to build, right off the bat. In case this is the right forum for
raising this question, here is what I get:
Makefile:
obj−m += hello−1.o
all:
make −C /lib/modules/$(shell uname −r)/build M=$(PWD) modules
clean:
make −C /lib/modules/$(shell uname −r)/build M=$(PWD) clean
These errors are hand-copied, since I'm doing the work in the LFS console:
First I get a warning:
WARNING: Symbol version dump /sources/linux-2.6.35.4/Module symvers is
missing; modules will have no dependencies and modversions.
Then a real error:
scripts/Makefile.build:235: target '/home/daryl/kernel/hello-1/hello-1.c'
doesn't match the target pattern
And right after the 'MODPOST 0 modules' output line, I get:
/bin/sh: scripts/mod/modpost: No such file or directory.
The warning suggests I should reconfigure and rebuild my kernel, but I'm not
sure, and I'm definitely not sure how I should change the configuration
settings.
The rest, I have no clue about. Is there someone on this list who can point
me in the right direction? Is there a better forum to raise the question?
--
Daryl Lee
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