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I have a makefile for kernel device drivers like # # Makefile for the kernel mmc device drivers. # # # Core # obj-$(CONFIG_MMC) += mmc_core.o # # Media drivers ...
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  1. #1
    Just Joined!
    Join Date
    Jan 2007
    Posts
    20

    compilation of makefile


    I have a makefile for kernel device drivers
    like
    #
    # Makefile for the kernel mmc device drivers.
    #

    #
    # Core
    #
    obj-$(CONFIG_MMC) += mmc_core.o

    #
    # Media drivers
    #
    obj-$(CONFIG_MMC_BLOCK) += mmc_block.o

    #
    # Host drivers
    #
    obj-$(CONFIG_MMC_ARMMMCI) += mmci.o
    obj-$(CONFIG_MMC_PXA) += pxamci.o
    obj-$(CONFIG_MMC_IMX) += imxmmc.o
    obj-$(CONFIG_MMC_SDHCI) += sdhci.o
    obj-$(CONFIG_MMC_WBSD) += wbsd.o
    obj-$(CONFIG_MMC_AU1X) += au1xmmc.o

    mmc_core-y := mmc.o mmc_queue.o mmc_sysfs.o

    ifeq ($(CONFIG_MMC_DEBUG),y)
    EXTRA_CFLAGS += -DDEBUG
    endif

    When i type
    make mmc_core/mmc_core-y
    it gives error like "no rule to make target "

    Question is
    How to get object file from this makefile

  2. #2
    Just Joined!
    Join Date
    Aug 2006
    Location
    india
    Posts
    57
    allocating driver statically or as a loadable module is what u have to understand.

    while writing makefile observe
    obj-m means include driver at run time ie as loadable module that is what ur trying
    obj-y means when ur making driver compile along with kernel

    i think u got those macros after u did menuconfig u have written some macros i see (try to google as loadable driver modules)

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