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  1. #Android makefile to build kernel as a part of Android Build
  2. BACKPORT_DIR := $(call my-dir)
  3.  
  4. include $(CLEAR_VARS)
  5.  
  6. PERL = perl
  7.  
  8. BACKPORTS_KERNEL_DEFCONFIG := defconfig-bluetooth
  9.  
  10. BACKPORTS_KERNEL_CONFIG := $(BACKPORT_DIR)/.config
  11.  
  12. BACKPORTS_KERNEL_HEADERS_INSTALL := $(KERNEL_OUT)/usr
  13. BACKPORTS_KERNEL_MODULES_INSTALL := system
  14. BACKPORTS_KERNEL_MODULES_OUT := $(TARGET_OUT)/lib/modules
  15.  
  16. ifeq ($(TARGET_KERNEL_ARCH),)
  17. TARGET_KERNEL_ARCH=$(KERNEL_ARCH)
  18. endif
  19.  
  20. ifeq ($(TARGET_KERNEL_ARCH),arm)
  21. KERNEL_CROSS_COMPILE := arm-linux-androideabi-
  22. endif
  23.  
  24. define mv-backports-modules
  25. ko=`find $(BACKPORT_DIR) -type f -name *.ko`;\
  26. for i in $$ko; do mv $$i $(BACKPORTS_KERNEL_MODULES_OUT)/; done;
  27. endef
  28.  
  29. define clean-backports-module-folder
  30. mdpath=`find $(BACKPORTS_KERNEL_MODULES_OUT) -type f -name modules.dep`;\
  31. if [ "$$mdpath" != "" ];then\
  32. mpath=`dirname $$mdpath`; rm -rf $$mpath;\
  33. fi
  34. endef
  35.  
  36. $(BACKPORTS_KERNEL_CONFIG):
  37. $(MAKE) -C $(BACKPORT_DIR) O=$(BUILD_ROOT_LOC)$(KERNEL_OUT) KLIB_BUILD=$(BUILD_ROOT_LOC)$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE) $(BACKPORTS_KERNEL_DEFCONFIG)
  38.  
  39. backports: $(BACKPORTS_KERNEL_CONFIG)
  40. $(MAKE) -C $(BACKPORT_DIR) O=$(BUILD_ROOT_LOC)$(KERNEL_OUT) KLIB_BUILD=$(BUILD_ROOT_LOC)$(KERNEL_OUT) ARCH=$(KERNEL_ARCH) CROSS_COMPILE=$(KERNEL_CROSS_COMPILE)
  41. $(mv-backports-modules)
  42. $(clean-backports-module-folder)
  43.  
  44. include $(CLEAR_VARS)
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