d27f8ac6ac5962fe33f864bad78c2a9728ae02e6
[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:=$(TARGET_CROSS)
27 endif
28
29 KERNEL_PATCHVER:=$(shell echo $(LINUX_VERSION) | cut -d. -f1,2,3 | cut -d- -f1)
30 PLATFORM_DIR := $(TOPDIR)/target/linux/$(BOARD)-$(KERNEL)
31 PATCH_DIR := ./patches$(shell [ -d "./patches-$(KERNEL_PATCHVER)" ] && printf -- "-$(KERNEL_PATCHVER)" || true )
32 KERNEL_BUILD_DIR:=$(BUILD_DIR)/linux-$(KERNEL)-$(BOARD)
33 LINUX_DIR := $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
34
35 MODULES_SUBDIR:=lib/modules/$(LINUX_VERSION)
36 TARGET_MODULES_DIR := $(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
37
38 LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux
39
40 LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
41 TESTING:=$(if $(findstring -rc,$(LINUX_VERSION)),/testing,)
42 LINUX_SITE:=http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL)$(TESTING) \
43 http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL)$(TESTING) \
44 http://www.kernel.org/pub/linux/kernel/v$(KERNEL)$(TESTING) \
45 http://www.de.kernel.org/pub/linux/kernel/v$(KERNEL)$(TESTING)
46
47 PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
48 endif
49 GENERIC_PLATFORM_DIR := $(TOPDIR)/target/linux/generic-$(KERNEL)
50 GENERIC_PATCH_DIR := $(GENERIC_PLATFORM_DIR)/patches$(shell [ -d "$(GENERIC_PLATFORM_DIR)/patches-$(KERNEL_PATCHVER)" ] && printf -- "-$(KERNEL_PATCHVER)" || true )
51
52
53 define KernelPackage/Defaults
54 FILES:=
55 AUTOLOAD:=
56 endef
57
58 define ModuleAutoLoad
59 export modules=; \
60 add_module() { \
61 mkdir -p $(2)/etc/modules.d; \
62 ( \
63 for mod in $$$$$$$$2; do \
64 getvar mod; \
65 done \
66 ) > $(2)/etc/modules.d/$$$$$$$$1-$(1); \
67 modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$1-$(1)"; \
68 }; \
69 $(3) \
70 if [ -n "$$$$$$$$modules" ]; then \
71 mkdir -p $(2)/etc/modules.d; \
72 echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
73 echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
74 echo ". /etc/functions.sh" >> $(2)/CONTROL/postinst; \
75 echo "load_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
76 chmod 0755 $(2)/CONTROL/postinst; \
77 fi
78 endef
79
80
81 define KernelPackage
82 NAME:=$(1)
83 $(eval $(call Package/Default))
84 $(eval $(call KernelPackage/Defaults))
85 $(eval $(call KernelPackage/$(1)))
86 $(eval $(call KernelPackage/$(1)/$(KERNEL)))
87 $(eval $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL)))
88
89 define Package/kmod-$(1)
90 TITLE:=$(TITLE)
91 SECTION:=kernel
92 CATEGORY:=Kernel modules
93 DESCRIPTION:=$(DESCRIPTION)
94 EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE))
95 $(call KernelPackage/$(1))
96 $(call KernelPackage/$(1)/$(KERNEL))
97 $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL))
98 endef
99
100 ifneq ($(strip $(FILES)),)
101 define Package/kmod-$(1)/install
102 mkdir -p $$(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 $$(eval $$(call BuildPackage,kmod-$(1)))
109
110 $$(IPKG_kmod-$(1)): $$(wildcard $$(FILES))
111 endef
112
113 define AutoLoad
114 add_module $(1) "$(2)";
115 endef
116