add a default for PKG_BUILD_DIR and PKG_INSTALL_DIR (will use KERNEL_BUILD_DIR if...
[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   MODULES_DIR := $(KERNEL_BUILD_DIR)/modules/$(MODULES_SUBDIR)
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   LINUX_SITE:=http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL) \
42            http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL) \
43            http://www.kernel.org/pub/linux/kernel/v$(KERNEL) \
44            http://www.de.kernel.org/pub/linux/kernel/v$(KERNEL)
45
46   PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
47
48 endif
49
50
51 define KernelPackage/Defaults
52   FILES:=
53   KCONFIG:=m
54   AUTOLOAD:=
55 endef
56
57 define ModuleAutoLoad
58         export modules=; \
59         add_module() { \
60                 mkdir -p $(2)/etc/modules.d; \
61                 ( \
62                         for mod in $$$$$$$$2; do \
63                                 getvar mod; \
64                         done \
65                 ) > $(2)/etc/modules.d/$$$$$$$$1-$(1); \
66                 modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$1-$(1)"; \
67         }; \
68         $(3) \
69         if [ -n "$$$$$$$$modules" ]; then \
70                 mkdir -p $(2)/etc/modules.d; \
71                 echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
72                 echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
73                 echo ". /etc/functions.sh" >> $(2)/CONTROL/postinst; \
74                 echo "load_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
75                 chmod 0755 $(2)/CONTROL/postinst; \
76         fi
77 endef
78  
79
80 define KernelPackage
81   NAME:=$(1)
82   $(eval $(call Package/Default))
83   $(eval $(call KernelPackage/Defaults))
84   $(eval $(call KernelPackage/$(1)))
85   $(eval $(call KernelPackage/$(1)/$(KERNEL)))
86   $(eval $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL)))
87
88   define Package/kmod-$(1)
89     TITLE:=$(TITLE)
90     SECTION:=kernel
91     CATEGORY:=Kernel modules
92     DEFAULT:=$(KMOD_DEFAULT)
93     DESCRIPTION:=$(DESCRIPTION)
94     EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE))
95     $(call KernelPackage/$(1))
96     $(call KernelPackage/$(1)/$(KERNEL))
97     $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL))
98   endef
99
100   ifeq ($(findstring m,$(KCONFIG)),m)
101     ifneq ($(strip $(FILES)),)
102       define Package/kmod-$(1)/install
103                 mkdir -p $$(1)/lib/modules/$(LINUX_VERSION)
104                 $(CP) -L $$(FILES) $$(1)/lib/modules/$(LINUX_VERSION)/
105                 $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
106                 $(call KernelPackage/$(1)/install,$$(1))
107       endef
108     endif
109   endif
110   $$(eval $$(call BuildPackage,kmod-$(1)))
111 endef
112
113 define AutoLoad
114   add_module $(1) "$(2)";
115 endef
116