/*********************************************************************************                     I.MX6 linux kernel编译错误处理* 声明：*     本文仅仅是对I.MX6的linux内核编译出错，记录其对应的处理方法。**                                       2015-10-15 晴 深圳 南山平山村 曾剑锋*******************************************************************************/参考文章：1. Android JB4.2.2_1.0.0  issue:  MFG Firmware build does not compilehttps://community.freescale.com/thread/3074772. honycomb-x86: build failed on ubuntu for traget-product 'vm'https://code.google.com/p/android-x86/issues/detail?id=4873. AR1021In Productionhttp://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en557224

一、编译错误：LD      init/built-in.oLD      .tmp_vmlinux1drivers/built-in.o: In function `mxc_hdmi_remove':clkdev.c:(.text+0x125e0): undefined reference to `switch_dev_unregister'
    clkdev.c:(.text+0x125ec): undefined reference to `switch_dev_unregister'
    drivers/built-in.o: In function `hotplug_worker':clkdev.c:(.text+0x1445c): undefined reference to `switch_set_state'
    clkdev.c:(.text+0x1446c): undefined reference to `switch_set_state'
    clkdev.c:(.text+0x1466c): undefined reference to `switch_set_state'
    clkdev.c:(.text+0x1467c): undefined reference to `switch_set_state'
    drivers/built-in.o: In function `mxc_hdmi_probe':clkdev.c:(.devinit.text+0x3c8): undefined reference to `switch_dev_register'
    clkdev.c:(.devinit.text+0x3d4): undefined reference to `switch_dev_register'
    sound/built-in.o: In function `usb_audio_disconnect':last.c:(.text+0x16b20): undefined reference to `switch_set_state'
    last.c:(.text+0x16b28): undefined reference to `switch_dev_unregister'
    sound/built-in.o: In function `usb_audio_probe':last.c:(.text+0x16f84): undefined reference to `switch_dev_register'
    last.c:(.text+0x17008): undefined reference to `switch_set_state'
    last.c:(.text+0x170e4): undefined reference to `switch_dev_register'
    sound/built-in.o: In function `hp_jack_status_check':last.c:(.text+0x368b0): undefined reference to `switch_set_state'
    last.c:(.text+0x36944): undefined reference to `switch_set_state'
    sound/built-in.o: In function `imx_wm8962_remove':last.c:(.devexit.text+0x2b8): undefined reference to `switch_dev_unregister'
    sound/built-in.o: In function `imx_wm8962_probe':last.c:(.devinit.text+0x6e4): undefined reference to `switch_dev_register'
    last.c:(.devinit.text+0x718): undefined reference to `switch_set_state'
    make: *** [.tmp_vmlinux1] Error 1解决方法：主要是make menuconfig打开swith这个选项，详情参考文章1。二、编译错误：LD      kernel/built-in.oCC      drivers/gpu/drm/drm_auth.oIn file included from include/drm/drmP.h:76:0,from drivers/gpu/drm/drm_auth.c:36:include/drm/drm.h:48:23: fatal error: sys/types.h: No such file or directorycompilation terminated.make[3]: *** [drivers/gpu/drm/drm_auth.o] Error 1make[2]: *** [drivers/gpu/drm] Error 2make[1]: *** [drivers/gpu] Error 2make: *** [drivers] Error 2解决方法：由于采用了Android自带的编译器，本来就不能用Android的编译器，导致出现了这个问题，所以换成Linux Qt的编译器就行了。三、编译错误：CC [M]  drivers/usb/gadget/audio.oCC [M]  drivers/usb/gadget/ether.odrivers/usb/gadget/ether.c: In function 'rndis_do_config':drivers/usb/gadget/ether.c:249:2: error: too few arguments to function 'rndis_bind_config'drivers/usb/gadget/f_rndis.c:788:1: note: declared heredrivers/usb/gadget/ether.c:250:1: warning: control reaches end of non-void function [-Wreturn-type]make[3]: *** [drivers/usb/gadget/ether.o] Error 1make[2]: *** [drivers/usb/gadget] Error 2make[1]: *** [drivers/usb] Error 2make: *** [drivers] Error 2解决方法：make menuconfig 去掉这部分驱动也许就行了。目前本人通过选择一个能够编译通过的文件系统Device Drivers  --->  [*] USB support  ---> <*>   USB Gadget Support  ---><*>   USB Gadget Drivers (Gadget Filesystem (EXPERIMENTAL))  --->(X) Gadget Filesystem (EXPERIMENTAL)     四、编译错误：Qt@aplex:~/kernel/linuxQt_kernel$ make uImageCHK     include/linux/version.hCHK     include/generated/utsrelease.hmake[1]: `include/generated/mach-types.h' is up to date.CALL    scripts/checksyscalls.shCHK     include/generated/compile.hCC      drivers/input/touchscreen/ar1020-spi.odrivers/input/touchscreen/ar1020-spi.c: In function 'ar1020_spi_probe':drivers/input/touchscreen/ar1020-spi.c:801:2: error: implicit declaration of function 'set_irq_type' [-Werror=implicit-function-declaration]drivers/input/touchscreen/ar1020-spi.c:802:13: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result [-Wunused-result]cc1: some warnings being treated as errorsmake[3]: *** [drivers/input/touchscreen/ar1020-spi.o] Error 1make[2]: *** [drivers/input/touchscreen] Error 2make[1]: *** [drivers/input] Error 2make: *** [drivers] Error 2解决方法：//set_irq_type(i, IRQ_TYPE_EDGE_RISING);  // 将中断引发类型放在request_irq()中if (0 >= (ret=request_irq(i, test_irq_handler_func, IRQ_TYPE_EDGE_RISING,"AR1020 IRQ", priv))){......}