change the way ./files* and the generic kernel files are applied. ./files now applies...
[openwrt/openwrt.git] / include / kernel.mk
1 #
2 # Copyright (C) 2006 OpenWrt.org
3 #
4 # This is free software, licensed under the GNU General Public License v2.
5 # See /LICENSE for more information.
6 #
7
8 ifeq ($(__target_inc),)
9 include $(INCLUDE_DIR)/target.mk
10 endif
11
12 ifeq ($(DUMP),1)
13 KERNEL?=<KERNEL>
14 BOARD?=<BOARD>
15 LINUX_VERSION?=<LINUX_VERSION>
16 else
17 export GCC_HONOUR_COPTS=s
18
19 ifeq ($(KERNEL),2.6)
20 LINUX_KMOD_SUFFIX=ko
21 else
22 LINUX_KMOD_SUFFIX=o
23 endif
24
25 ifneq (,$(findstring uml,$(BOARD)))
26 KERNEL_CC?=$(HOSTCC)
27 KERNEL_CROSS?=
28 else
29 KERNEL_CC?=$(TARGET_CC)
30 KERNEL_CROSS?=$(TARGET_CROSS)
31 endif
32
33 PATCH_DIR ?= ./patches$(shell [ -d "./patches-$(KERNEL_PATCHVER)" ] && printf -- "-$(KERNEL_PATCHVER)" || true )
34 FILES_DIR ?= $(foreach dir,$(wildcard ./files ./files-$(KERNEL_PATCHVER)),"$(dir)")
35 KERNEL_BUILD_DIR ?= $(BUILD_DIR_BASE)/linux-$(BOARD)$(if $(SUBTARGET),_$(SUBTARGET))$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
36 LINUX_DIR ?= $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
37
38 MODULES_SUBDIR:=lib/modules/$(LINUX_VERSION)
39 TARGET_MODULES_DIR := $(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
40
41 LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux
42
43 LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
44 TESTING:=$(if $(findstring -rc,$(LINUX_VERSION)),/testing,)
45 LINUX_SITE:=@KERNEL/linux/kernel/v$(KERNEL)$(TESTING) \
46
47 ifneq ($(TARGET_BUILD),1)
48 PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)$(if $(PKG_VERSION),-$(PKG_VERSION))
49 endif
50 endif
51
52 ifneq (,$(findstring uml,$(BOARD)))
53 LINUX_KARCH:=um
54 else
55 ifeq (,$(LINUX_KARCH))
56 LINUX_KARCH:=$(shell echo $(ARCH) | sed -e 's/i[3-9]86/i386/' \
57 -e 's/mipsel/mips/' \
58 -e 's/mipseb/mips/' \
59 -e 's/sh[234]/sh/' \
60 -e 's/armeb/arm/' \
61 )
62 endif
63 endif
64
65
66 define KernelPackage/Defaults
67 FILES:=
68 AUTOLOAD:=
69 endef
70
71 define ModuleAutoLoad
72 export modules=; \
73 add_module() { \
74 mkdir -p $(2)/etc/modules.d; \
75 ( \
76 for mod in $$$$$$$$2; do \
77 getvar mod; \
78 done \
79 ) > $(2)/etc/modules.d/$$$$$$$$1-$(1); \
80 modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$1-$(1)"; \
81 }; \
82 $(3) \
83 if [ -n "$$$$$$$$modules" ]; then \
84 mkdir -p $(2)/etc/modules.d; \
85 echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
86 echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
87 echo ". /etc/functions.sh" >> $(2)/CONTROL/postinst; \
88 echo "load_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
89 chmod 0755 $(2)/CONTROL/postinst; \
90 fi
91 endef
92
93 ifeq ($(DUMP)$(TARGET_BUILD),)
94 -include $(LINUX_DIR)/.config
95 endif
96
97 define KernelPackage
98 NAME:=$(1)
99 $(eval $(call Package/Default))
100 $(eval $(call KernelPackage/Defaults))
101 $(eval $(call KernelPackage/$(1)))
102 $(eval $(call KernelPackage/$(1)/$(KERNEL)))
103 $(eval $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL)))
104
105 define Package/kmod-$(1)
106 TITLE:=$(TITLE)
107 SECTION:=kernel
108 CATEGORY:=Kernel modules
109 DESCRIPTION:=$(DESCRIPTION)
110 EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE))
111 VERSION:=$(LINUX_VERSION)$(if $(PKG_VERSION),+$(PKG_VERSION))-$(BOARD)-$(if $(PKG_RELEASE),$(PKG_RELEASE),$(LINUX_RELEASE))
112 $(call KernelPackage/$(1))
113 $(call KernelPackage/$(1)/$(KERNEL))
114 $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL))
115 endef
116
117 ifdef KernelPackage/$(1)/description
118 define Package/kmod-$(1)/description
119 $(call KernelPackage/$(1)/description)
120 endef
121 endif
122
123 ifdef KernelPackage/$(1)/config
124 define Package/kmod-$(1)/config
125 $(call KernelPackage/$(1)/config)
126 endef
127 endif
128
129 $(STAMP_BUILT): $(LINUX_DIR)/.config
130
131 ifneq ($(if $(filter-out %=y %=n %=m,$(KCONFIG)),$(filter m,$(foreach c,$(filter-out %=y %=n %=m,$(KCONFIG)),$($(c)))),.),)
132 ifneq ($(strip $(FILES)),)
133 define Package/kmod-$(1)/install
134 mkdir -p $$(1)/lib/modules/$(LINUX_VERSION)
135 $(CP) -L $$(FILES) $$(1)/lib/modules/$(LINUX_VERSION)/
136 $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
137 $(call KernelPackage/$(1)/install,$$(1))
138 endef
139 endif
140 $(if $(CONFIG_PACKAGE_kmod-$(1)),
141 else
142 compile: kmod-$(1)-unavailable
143 kmod-$(1)-unavailable:
144 @echo "WARNING: kmod-$(1) is not available in the kernel config"
145 )
146 endif
147 $$(eval $$(call BuildPackage,kmod-$(1)))
148
149 $$(IPKG_kmod-$(1)): $$(wildcard $$(FILES))
150 endef
151
152 define AutoLoad
153 add_module $(1) "$(2)";
154 endef
155
156 define CompareKernelPatchVer
157 $(shell [ $$(echo $(1) | tr . 0) -$(2) $$(echo $(3) | tr . 0) ] && echo 1 || echo 0)
158 endef
159