avoid repeating the same dependency multiple times
[openwrt/staging/wigyori.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/x86/' \
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 $$$$$$$$2; do \
77 getvar mod; \
78 done \
79 ) > $(2)/etc/modules.d/$$$$$$$$1-$(1); \
80 modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$1-$(1)"; \
81 }; \
82 $(3) \
83 if [ -n "$$$$$$$$modules" ]; then \
84 mkdir -p $(2)/etc/modules.d; \
85 echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
86 echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
87 echo ". /etc/functions.sh" >> $(2)/CONTROL/postinst; \
88 echo "load_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
89 chmod 0755 $(2)/CONTROL/postinst; \
90 fi
91 endef
92
93 ifeq ($(DUMP)$(TARGET_BUILD),)
94 -include $(LINUX_DIR)/.config
95 endif
96
97 define KernelPackage/depends
98 $(STAMP_BUILT): $(LINUX_DIR)/.config
99 define KernelPackage/depends
100 endef
101 endef
102
103 define KernelPackage
104 NAME:=$(1)
105 $(eval $(call Package/Default))
106 $(eval $(call KernelPackage/Defaults))
107 $(eval $(call KernelPackage/$(1)))
108 $(eval $(call KernelPackage/$(1)/$(KERNEL)))
109 $(eval $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL)))
110
111 define Package/kmod-$(1)
112 TITLE:=$(TITLE)
113 SECTION:=kernel
114 CATEGORY:=Kernel modules
115 DESCRIPTION:=$(DESCRIPTION)
116 EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE))
117 VERSION:=$(LINUX_VERSION)$(if $(PKG_VERSION),+$(PKG_VERSION))-$(BOARD)-$(if $(PKG_RELEASE),$(PKG_RELEASE),$(LINUX_RELEASE))
118 $(call KernelPackage/$(1))
119 $(call KernelPackage/$(1)/$(KERNEL))
120 $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL))
121 endef
122
123 ifdef KernelPackage/$(1)/description
124 define Package/kmod-$(1)/description
125 $(call KernelPackage/$(1)/description)
126 endef
127 endif
128
129 ifdef KernelPackage/$(1)/config
130 define Package/kmod-$(1)/config
131 $(call KernelPackage/$(1)/config)
132 endef
133 endif
134
135 $(call KernelPackage/depends)
136
137 ifneq ($(if $(filter-out %=y %=n %=m,$(KCONFIG)),$(filter m,$(foreach c,$(filter-out %=y %=n %=m,$(KCONFIG)),$($(c)))),.),)
138 ifneq ($(strip $(FILES)),)
139 define Package/kmod-$(1)/install
140 mkdir -p $$(1)/lib/modules/$(LINUX_VERSION)
141 $(CP) -L $$(FILES) $$(1)/lib/modules/$(LINUX_VERSION)/
142 $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
143 $(call KernelPackage/$(1)/install,$$(1))
144 endef
145 endif
146 $(if $(CONFIG_PACKAGE_kmod-$(1)),
147 else
148 compile: kmod-$(1)-unavailable
149 kmod-$(1)-unavailable:
150 @echo "WARNING: kmod-$(1) is not available in the kernel config"
151 )
152 endif
153 $$(eval $$(call BuildPackage,kmod-$(1)))
154
155 $$(IPKG_kmod-$(1)): $$(wildcard $$(FILES))
156 endef
157
158 define AutoLoad
159 add_module $(1) "$(2)";
160 endef
161
162 define CompareKernelPatchVer
163 $(shell [ $$(echo $(1) | tr . 0) -$(2) $$(echo $(3) | tr . 0) ] && echo 1 || echo 0)
164 endef
165