build: generate a list of provided libraries for each ipkg file (includes provided...
[openwrt/svn-archive/archive.git] / include / kernel.mk
1 #
2 # Copyright (C) 2006-2011 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 LINUX_VERMAGIC?=<LINUX_VERMAGIC>
17 else
18 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
19 export GCC_HONOUR_COPTS=s
20 endif
21
22 LINUX_KMOD_SUFFIX=ko
23
24 ifneq (,$(findstring uml,$(BOARD)))
25 KERNEL_CC?=$(HOSTCC)
26 KERNEL_CROSS?=
27 else
28 KERNEL_CC?=$(TARGET_CC)
29 KERNEL_CROSS?=$(TARGET_CROSS)
30 endif
31
32 ifeq ($(TARGET_BUILD),1)
33 PATCH_DIR ?= ./patches$(if $(wildcard ./patches-$(KERNEL_PATCHVER)),-$(KERNEL_PATCHVER))
34 FILES_DIR ?= $(foreach dir,$(wildcard ./files ./files-$(KERNEL_PATCHVER)),"$(dir)")
35 endif
36 KERNEL_BUILD_DIR ?= $(BUILD_DIR_BASE)/linux-$(BOARD)$(if $(SUBTARGET),_$(SUBTARGET))$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
37 LINUX_DIR ?= $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
38
39 LINUX_VERMAGIC:=$(strip $(shell cat $(LINUX_DIR)/.vermagic 2>/dev/null))
40 LINUX_VERMAGIC:=$(if $(LINUX_VERMAGIC),$(LINUX_VERMAGIC),unknown)
41
42 LINUX_UNAME_VERSION:=$(if $(word 3,$(subst ., ,$(KERNEL_BASE))),$(KERNEL_BASE),$(KERNEL_BASE).0)
43 ifneq ($(findstring -rc,$(LINUX_VERSION)),)
44 LINUX_UNAME_VERSION:=$(LINUX_UNAME_VERSION)-$(strip $(lastword $(subst -, ,$(LINUX_VERSION))))
45 endif
46
47 MODULES_SUBDIR:=lib/modules/$(LINUX_UNAME_VERSION)
48 TARGET_MODULES_DIR := $(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
49
50 LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux
51
52 LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
53 TESTING:=$(if $(findstring -rc,$(LINUX_VERSION)),/testing,)
54 ifeq ($(call qstrip,$(CONFIG_EXTERNAL_KERNEL_TREE))$(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI)),)
55 ifeq ($(word 1,$(subst ., ,$(KERNEL_BASE))),3)
56 LINUX_SITE:=@KERNEL/linux/kernel/v3.x$(TESTING)
57 else
58 LINUX_SITE:=@KERNEL/linux/kernel/v$(KERNEL)$(TESTING)
59 endif
60 endif
61
62 ifneq ($(TARGET_BUILD),1)
63 PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)$(if $(PKG_VERSION),-$(PKG_VERSION))
64 endif
65 endif
66
67 ifneq (,$(findstring uml,$(BOARD)))
68 LINUX_KARCH=um
69 else
70 ifeq (,$(LINUX_KARCH))
71 LINUX_KARCH=$(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))))))))))
72 endif
73 endif
74
75
76 define KernelPackage/Defaults
77 FILES:=
78 AUTOLOAD:=
79 endef
80
81 define ModuleAutoLoad
82 $(SH_FUNC) \
83 export modules=; \
84 add_module() { \
85 priority="$$$$$$$$1"; \
86 mods="$$$$$$$$2"; \
87 boot="$$$$$$$$3"; \
88 shift 3; \
89 for mod in $$$$$$$$mods; do \
90 if [ -e $(2)/$(MODULES_SUBDIR)/$$$$$$$$mod.ko ]; then \
91 mkdir -p $(2)/etc/modules.d; \
92 echo "$$$$$$$$mod" >> $(2)/etc/modules.d/$$$$$$$$priority-$(1); \
93 fi; \
94 done; \
95 if [ -e $(2)/etc/modules.d/$$$$$$$$priority-$(1) ]; then \
96 if [ "$$$$$$$$boot" = "1" ]; then \
97 mkdir -p $(2)/etc/modules-boot.d; \
98 ln -s ../modules.d/$$$$$$$$priority-$(1) $(2)/etc/modules-boot.d/; \
99 fi; \
100 modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$priority-$(1)"; \
101 fi; \
102 }; \
103 $(3) \
104 if [ -n "$$$$$$$$modules" ]; then \
105 mkdir -p $(2)/etc/modules.d; \
106 mkdir -p $(2)/CONTROL; \
107 echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
108 echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
109 echo ". /etc/functions.sh" >> $(2)/CONTROL/postinst; \
110 echo "load_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
111 chmod 0755 $(2)/CONTROL/postinst; \
112 fi
113 endef
114
115 ifeq ($(DUMP)$(TARGET_BUILD),)
116 -include $(LINUX_DIR)/.config
117 endif
118
119 define KernelPackage/depends
120 $(STAMP_BUILT): $(LINUX_DIR)/.config
121 define KernelPackage/depends
122 endef
123 endef
124
125 define KernelPackage
126 NAME:=$(1)
127 $(eval $(call Package/Default))
128 $(eval $(call KernelPackage/Defaults))
129 $(eval $(call KernelPackage/$(1)))
130 $(eval $(call KernelPackage/$(1)/$(BOARD)))
131
132 define Package/kmod-$(1)
133 TITLE:=$(TITLE)
134 SECTION:=kernel
135 CATEGORY:=Kernel modules
136 DESCRIPTION:=$(DESCRIPTION)
137 EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(LINUX_RELEASE)-$(LINUX_VERMAGIC))
138 VERSION:=$(LINUX_VERSION)$(if $(PKG_VERSION),+$(PKG_VERSION))-$(if $(PKG_RELEASE),$(PKG_RELEASE),$(LINUX_RELEASE))
139 $(call KernelPackage/$(1))
140 $(call KernelPackage/$(1)/$(BOARD))
141 endef
142
143 ifdef KernelPackage/$(1)/description
144 define Package/kmod-$(1)/description
145 $(call KernelPackage/$(1)/description)
146 endef
147 endif
148
149 ifdef KernelPackage/$(1)/config
150 define Package/kmod-$(1)/config
151 $(call KernelPackage/$(1)/config)
152 endef
153 endif
154
155 $(call KernelPackage/depends)
156
157 ifneq ($(if $(filter-out %=y %=n %=m,$(KCONFIG)),$(filter m y,$(foreach c,$(filter-out %=y %=n %=m,$(KCONFIG)),$($(c)))),.),)
158 ifneq ($(strip $(FILES)),)
159 define Package/kmod-$(1)/install
160 @for mod in $$(FILES); do \
161 if [ -e $$$$$$$$mod ]; then \
162 mkdir -p $$(1)/$(MODULES_SUBDIR) ; \
163 $(CP) -L $$$$$$$$mod $$(1)/$(MODULES_SUBDIR)/ ; \
164 elif [ -e "$(LINUX_DIR)/modules.builtin" ]; then \
165 if grep -q "$$$$$$$${mod##$(LINUX_DIR)/}" "$(LINUX_DIR)/modules.builtin"; then \
166 echo "NOTICE: module '$$$$$$$$mod' is built-in."; \
167 else \
168 echo "ERROR: module '$$$$$$$$mod' is missing."; \
169 exit 1; \
170 fi; \
171 else \
172 echo "WARNING: module '$$$$$$$$mod' missing and modules.builtin not available, assuming built-in."; \
173 fi; \
174 done;
175 $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
176 $(call KernelPackage/$(1)/install,$$(1))
177 endef
178 endif
179 $(if $(CONFIG_PACKAGE_kmod-$(1)),
180 else
181 compile: kmod-$(1)-unavailable
182 kmod-$(1)-unavailable:
183 @echo "WARNING: kmod-$(1) is not available in the kernel config"
184 )
185 endif
186 $$(eval $$(call BuildPackage,kmod-$(1)))
187
188 $$(IPKG_kmod-$(1)): $$(wildcard $$(FILES))
189 endef
190
191 define AutoLoad
192 add_module "$(1)" "$(2)" "$(3)";
193 endef
194
195 version_field=$(if $(word $(1),$(2)),$(word $(1),$(2)),0)
196 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)) ))
197
198 ifdef DUMP
199 kernel_version_cmp=
200 else
201 kernel_version_cmp=$(shell [ $(call kernel_version_merge,$(call split_version,$(2))) $(1) $(call kernel_version_merge,$(call split_version,$(3))) ] && echo 1 )
202 endif
203
204 CompareKernelPatchVer=$(if $(call kernel_version_cmp,-$(2),$(1),$(3)),1,0)
205
206 kernel_patchver_gt=$(call kernel_version_cmp,-gt,$(KERNEL_PATCHVER),$(1))
207 kernel_patchver_ge=$(call kernel_version_cmp,-ge,$(KERNEL_PATCHVER),$(1))
208 kernel_patchver_eq=$(call kernel_version_cmp,-eq,$(KERNEL_PATCHVER),$(1))
209 kernel_patchver_le=$(call kernel_version_cmp,-le,$(KERNEL_PATCHVER),$(1))
210 kernel_patchver_lt=$(call kernel_version_cmp,-lt,$(KERNEL_PATCHVER),$(1))
211