00a7882acbb9add2330a3f686c5438c978db4f3b
[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 ($(DUMP),1)
9 KERNEL?=<KERNEL>
10 BOARD?=<BOARD>
11 LINUX_VERSION?=<LINUX_VERSION>
12 else
13 include $(INCLUDE_DIR)/target.mk
14
15 ifeq ($(KERNEL),2.6)
16 LINUX_KMOD_SUFFIX=ko
17 else
18 LINUX_KMOD_SUFFIX=o
19 endif
20
21 ifneq (,$(findstring uml,$(BOARD)))
22 KERNEL_CC:=$(HOSTCC)
23 KERNEL_CROSS:=
24 else
25 KERNEL_CC:=$(TARGET_CC)
26 KERNEL_CROSS:=$(TARGET_CROSS)
27 endif
28
29 PLATFORM_DIR := $(TOPDIR)/target/linux/$(BOARD)-$(KERNEL)
30 GENERIC_PLATFORM_DIR := $(TOPDIR)/target/linux/generic-$(KERNEL)
31 KERNEL_BUILD_DIR:=$(BUILD_DIR)/linux-$(KERNEL)-$(BOARD)
32 LINUX_DIR := $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
33
34 MODULES_SUBDIR:=lib/modules/$(LINUX_VERSION)
35 TARGET_MODULES_DIR := $(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
36
37 LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux
38
39 LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
40 LINUX_SITE:=http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL) \
41 http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL) \
42 http://www.kernel.org/pub/linux/kernel/v$(KERNEL) \
43 http://www.de.kernel.org/pub/linux/kernel/v$(KERNEL)
44
45 PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
46
47 endif
48
49
50 define KernelPackage/Defaults
51 FILES:=
52 KCONFIG:=m
53 AUTOLOAD:=
54 endef
55
56 define ModuleAutoLoad
57 export modules=; \
58 add_module() { \
59 mkdir -p $(2)/etc/modules.d; \
60 ( \
61 for mod in $$$$$$$$2; do \
62 getvar mod; \
63 done \
64 ) > $(2)/etc/modules.d/$$$$$$$$1-$(1); \
65 modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$1-$(1)"; \
66 }; \
67 $(3) \
68 if [ -n "$$$$$$$$modules" ]; then \
69 mkdir -p $(2)/etc/modules.d; \
70 echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
71 echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
72 echo ". /etc/functions.sh" >> $(2)/CONTROL/postinst; \
73 echo "load_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
74 chmod 0755 $(2)/CONTROL/postinst; \
75 fi
76 endef
77
78
79 define KernelPackage
80 NAME:=$(1)
81 $(eval $(call Package/Default))
82 $(eval $(call KernelPackage/Defaults))
83 $(eval $(call KernelPackage/$(1)))
84 $(eval $(call KernelPackage/$(1)/$(KERNEL)))
85 $(eval $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL)))
86
87 define Package/kmod-$(1)
88 TITLE:=$(TITLE)
89 SECTION:=kernel
90 CATEGORY:=Kernel modules
91 DEFAULT:=$(KMOD_DEFAULT)
92 DESCRIPTION:=$(DESCRIPTION)
93 EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE))
94 $(call KernelPackage/$(1))
95 $(call KernelPackage/$(1)/$(KERNEL))
96 $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL))
97 endef
98
99 ifeq ($(findstring m,$(KCONFIG)),m)
100 ifneq ($(strip $(FILES)),)
101 define Package/kmod-$(1)/install
102 mkdir -p $$(1)/lib/modules/$(LINUX_VERSION)
103 $(CP) -L $$(FILES) $$(1)/lib/modules/$(LINUX_VERSION)/
104 $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
105 $(call KernelPackage/$(1)/install,$$(1))
106 endef
107 endif
108 endif
109 $$(eval $$(call BuildPackage,kmod-$(1)))
110
111 $$(IPKG_kmod-$(1)): $$(wildcard $$(FILES))
112 endef
113
114 define AutoLoad
115 add_module $(1) "$(2)";
116 endef
117