467172e9327e40d2b704da93d64c2d9486c075db
[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 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
18 export GCC_HONOUR_COPTS=s
19 endif
20
21 LINUX_KMOD_SUFFIX=ko
22
23 ifneq (,$(findstring uml,$(BOARD)))
24 KERNEL_CC?=$(HOSTCC)
25 KERNEL_CROSS?=
26 else
27 KERNEL_CC?=$(TARGET_CC)
28 KERNEL_CROSS?=$(TARGET_CROSS)
29 endif
30
31 ifeq ($(TARGET_BUILD),1)
32 PATCH_DIR ?= ./patches$(if $(wildcard ./patches-$(KERNEL_PATCHVER)),-$(KERNEL_PATCHVER))
33 FILES_DIR ?= $(foreach dir,$(wildcard ./files ./files-$(KERNEL_PATCHVER)),"$(dir)")
34 endif
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 LINUX_UNAME_VERSION:=$(if $(word 3,$(subst ., ,$(KERNEL_BASE))),$(KERNEL_BASE),$(KERNEL_BASE).0)
39 ifneq ($(findstring -rc,$(LINUX_VERSION)),)
40 LINUX_UNAME_VERSION:=$(LINUX_UNAME_VERSION)-$(strip $(lastword $(subst -, ,$(LINUX_VERSION))))
41 endif
42
43 MODULES_SUBDIR:=lib/modules/$(LINUX_UNAME_VERSION)
44 TARGET_MODULES_DIR := $(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
45
46 LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux
47
48 LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
49 TESTING:=$(if $(findstring -rc,$(LINUX_VERSION)),/testing,)
50 ifeq ($(call qstrip,$(CONFIG_EXTERNAL_KERNEL_TREE))$(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI)),)
51 ifeq ($(word 1,$(subst ., ,$(KERNEL_BASE))),3)
52 LINUX_SITE:=@KERNEL/linux/kernel/v3.x$(TESTING)
53 else
54 LINUX_SITE:=@KERNEL/linux/kernel/v$(KERNEL)$(TESTING)
55 endif
56 endif
57
58 ifneq ($(TARGET_BUILD),1)
59 PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)$(if $(PKG_VERSION),-$(PKG_VERSION))
60 endif
61 endif
62
63 ifneq (,$(findstring uml,$(BOARD)))
64 LINUX_KARCH=um
65 else
66 ifeq (,$(LINUX_KARCH))
67 LINUX_KARCH=$(strip $(subst i386,x86,$(subst armeb,arm,$(subst mipsel,mips,$(subst mips64,mips,$(subst mips64el,mips,$(subst sh2,sh,$(subst sh3,sh,$(subst sh4,sh,$(ARCH))))))))))
68 endif
69 endif
70
71
72 define KernelPackage/Defaults
73 FILES:=
74 AUTOLOAD:=
75 endef
76
77 define ModuleAutoLoad
78 $(SH_FUNC) \
79 export modules=; \
80 add_module() { \
81 priority="$$$$$$$$1"; \
82 mods="$$$$$$$$2"; \
83 boot="$$$$$$$$3"; \
84 shift 3; \
85 mkdir -p $(2)/etc/modules.d; \
86 ( \
87 [ "$$$$$$$$boot" = "1" ] && { \
88 echo '# May be required for rootfs' ; \
89 } ; \
90 for mod in $$$$$$$$mods; do \
91 echo "$$$$$$$$mod"; \
92 done \
93 ) > $(2)/etc/modules.d/$$$$$$$$priority-$(1); \
94 modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$priority-$(1)"; \
95 }; \
96 $(3) \
97 if [ -n "$$$$$$$$modules" ]; then \
98 mkdir -p $(2)/etc/modules.d; \
99 mkdir -p $(2)/CONTROL; \
100 echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
101 echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
102 echo ". /etc/functions.sh" >> $(2)/CONTROL/postinst; \
103 echo "load_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
104 chmod 0755 $(2)/CONTROL/postinst; \
105 fi
106 endef
107
108 ifeq ($(DUMP)$(TARGET_BUILD),)
109 -include $(LINUX_DIR)/.config
110 endif
111
112 define KernelPackage/depends
113 $(STAMP_BUILT): $(LINUX_DIR)/.config
114 define KernelPackage/depends
115 endef
116 endef
117
118 define KernelPackage
119 NAME:=$(1)
120 $(eval $(call Package/Default))
121 $(eval $(call KernelPackage/Defaults))
122 $(eval $(call KernelPackage/$(1)))
123 $(eval $(call KernelPackage/$(1)/$(BOARD)))
124
125 define Package/kmod-$(1)
126 TITLE:=$(TITLE)
127 SECTION:=kernel
128 CATEGORY:=Kernel modules
129 DESCRIPTION:=$(DESCRIPTION)
130 EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(LINUX_RELEASE))
131 VERSION:=$(LINUX_VERSION)$(if $(PKG_VERSION),+$(PKG_VERSION))-$(if $(PKG_RELEASE),$(PKG_RELEASE),$(LINUX_RELEASE))
132 $(call KernelPackage/$(1))
133 $(call KernelPackage/$(1)/$(BOARD))
134 endef
135
136 ifdef KernelPackage/$(1)/description
137 define Package/kmod-$(1)/description
138 $(call KernelPackage/$(1)/description)
139 endef
140 endif
141
142 ifdef KernelPackage/$(1)/config
143 define Package/kmod-$(1)/config
144 $(call KernelPackage/$(1)/config)
145 endef
146 endif
147
148 $(call KernelPackage/depends)
149
150 ifneq ($(if $(filter-out %=y %=n %=m,$(KCONFIG)),$(filter m,$(foreach c,$(filter-out %=y %=n %=m,$(KCONFIG)),$($(c)))),.),)
151 ifneq ($(strip $(FILES)),)
152 define Package/kmod-$(1)/install
153 mkdir -p $$(1)/$(MODULES_SUBDIR)
154 $(CP) -L $$(FILES) $$(1)/$(MODULES_SUBDIR)/
155 $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
156 $(call KernelPackage/$(1)/install,$$(1))
157 endef
158 endif
159 $(if $(CONFIG_PACKAGE_kmod-$(1)),
160 else
161 compile: kmod-$(1)-unavailable
162 kmod-$(1)-unavailable:
163 @echo "WARNING: kmod-$(1) is not available in the kernel config"
164 )
165 endif
166 $$(eval $$(call BuildPackage,kmod-$(1)))
167
168 $$(IPKG_kmod-$(1)): $$(wildcard $$(FILES))
169 endef
170
171 define AutoLoad
172 add_module "$(1)" "$(2)" "$(3)";
173 endef
174
175 version_field=$(if $(word $(1),$(2)),$(word $(1),$(2)),0)
176 kernel_version_merge=$$(( ($(call version_field,1,$(1)) << 24) + ($(call version_field,2,$(1)) << 16) + ($(call version_field,3,$(1)) << 8) + $(call version_field,4,$(1)) ))
177
178 ifdef DUMP
179 kernel_version_cmp=
180 else
181 kernel_version_cmp=$(shell [ $(call kernel_version_merge,$(call split_version,$(2))) $(1) $(call kernel_version_merge,$(call split_version,$(3))) ] && echo 1 )
182 endif
183
184 CompareKernelPatchVer=$(if $(call kernel_version_cmp,-$(2),$(1),$(3)),1,0)
185
186 kernel_patchver_gt=$(call kernel_version_cmp,-gt,$(KERNEL_PATCHVER),$(1))
187 kernel_patchver_ge=$(call kernel_version_cmp,-ge,$(KERNEL_PATCHVER),$(1))
188 kernel_patchver_eq=$(call kernel_version_cmp,-eq,$(KERNEL_PATCHVER),$(1))
189 kernel_patchver_le=$(call kernel_version_cmp,-le,$(KERNEL_PATCHVER),$(1))
190 kernel_patchver_lt=$(call kernel_version_cmp,-lt,$(KERNEL_PATCHVER),$(1))
191