Hi, Folks I'm puzzled by the kbuild system in 2.6 kernel. I want to write a kernel module, which consists of several components. The module is produced by linking these components. These components are located in separate subdirectories (for example A, B,C). Each component is generated also by linking multiple files. (For example, a_1.c, a_2.c for building A.o, b_1.c, b_2.c for building B.o, then A.o and B.o should be linked to produce mymodule.o) I know if I put all the files in a single directory The makefile of the module looks like obj-$(CONFIG_MYMODULE) += mymodule.o mymodule-objs := a_1.o a_2.o b_1.o b_2.o c_1.o c_2.o It should work. But it is really messy, especially there are a lot of files or each component requires different EXTRA_CFLAGS. However, if I write separate Makefiles for each component in their own subdirectory, the Makefile of component A looks like obj-y := A.o (or obj-$(CONFIG_MYMODULE) += A.o) A-objs := a_1.o a_2.o And the Makefile of mymodule looks like obj-$(CONFIG_MYMODULE) += A/ This is wrong, because kbuild will treat A as independent module. All I want is to treat A as component of the only module mymodule.o. It should be linked to mymodule.o Any idea on how to write a kbuild Makefile to support such kind of single module produced by linking multiple components and each component is located in separate directory? Thanks. -Song __________________________________ Do you Yahoo!? Yahoo! Mail - Helps protect you from nasty viruses. http://promotions.yahoo.com/new_mail
