Hello,
I'm trying to compile the uinput module for the G1 kernel and
have some questions doing so.
My starting situation is:
- I've built the Android SDK => toolchain and I'm able to compile
and use standard
(non-kernel) binaries
- I see the kernel source tree in the SDK toolchain - and I also
have a .config file
(retrieved from /proc/config.gz of a running phone)
Nevertheless:
1. I'm unsure (my attempt failed) how to compile the kernel - I
tried
===
make CROSS_COMPILE=/Volumes/mydroid/prebuilt/darwin-x86/
toolchain/arm-eabi-4.2.1/bin/arm-eabi- ARCH=arm
fails with (I put .config at the source tree and made a make
oldconfig / make menuconfig before)
CHK include/linux/version.h
make[1]: `include/asm-arm/mach-types.h' is up to date.
CHK include/linux/utsrelease.h
CALL scripts/checksyscalls.sh
sed: 4: "/^\#define/ { s/[^_]*__ ...": bad flag in substitute command:
'}'
HOSTCC scripts/genksyms/parse.o
scripts/genksyms/parse.y:27:20: error: malloc.h: No such file or
directory
make[2]: *** [scripts/genksyms/parse.o] Error 1
make[1]: *** [scripts/genksyms] Error 2
make: *** [scripts] Error 2
===
2. I would like to be able to compile modules outside the kernel
source tree (I used
to do this for driver development in native Linux environments
on various
architectures - e.g with a Makefile like this
===
ifneq ($(KERNELRELEASE),)
obj-m := example.o
else
KDIR := /lib/modules/$(shell uname -r)/build
PWD := $(shell pwd)
default:
$(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules
endif
===
My questions:
- Can somebody give me a hint on the kernel / module cross-compile
process
in general?
- A specific hint on compiling modules outside the kernel (after
adapting KDIR in the
Makefile I was able to compile example.o in the 1st compilation
step - I fail then though,
when the modpost tool (built as part of the standard kernel
compilation process) is needed
- In case you succeeded - can you please tell me about your compile
environment - I work
on OSX / but might go to a Linux system - in case this influences
the build process - because
host tools for a i386 kernel build might be used at certain steps
Many thanks for your help and best regards
Ralf
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