summaryrefslogtreecommitdiff
path: root/include/kernel.mk
blob: 460269949b1422b2fcf1165354a9fa3fbc275ad2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
# 
# Copyright (C) 2006 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#

ifeq ($(__target_inc),)
  include $(INCLUDE_DIR)/target.mk
endif

ifeq ($(DUMP),1)
  KERNEL?=<KERNEL>
  BOARD?=<BOARD>
  LINUX_VERSION?=<LINUX_VERSION>
else
  export GCC_HONOUR_COPTS=s

  ifeq ($(KERNEL),2.6)
    LINUX_KMOD_SUFFIX=ko
  else
    LINUX_KMOD_SUFFIX=o
  endif

  ifneq (,$(findstring uml,$(BOARD)))
    KERNEL_CC?=$(HOSTCC)
    KERNEL_CROSS?=
  else
    KERNEL_CC?=$(TARGET_CC)
    KERNEL_CROSS?=$(TARGET_CROSS)
  endif

  PATCH_DIR ?= ./patches$(shell [ -d "./patches-$(KERNEL_PATCHVER)" ] && printf -- "-$(KERNEL_PATCHVER)" || true )
  KERNEL_BUILD_DIR ?= $(BUILD_DIR_BASE)/linux-$(BOARD)$(if $(SUBTARGET),_$(SUBTARGET))$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
  LINUX_DIR ?= $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)

  MODULES_SUBDIR:=lib/modules/$(LINUX_VERSION)
  TARGET_MODULES_DIR := $(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)

  LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux

  LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
  TESTING:=$(if $(findstring -rc,$(LINUX_VERSION)),/testing,)
  LINUX_SITE:=@KERNEL/linux/kernel/v$(KERNEL)$(TESTING) \

  ifneq ($(TARGET_BUILD),1)
    PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)$(if $(PKG_VERSION),-$(PKG_VERSION))
  endif
endif

ifneq (,$(findstring uml,$(BOARD)))
  LINUX_KARCH:=um
else
  ifeq (,$(LINUX_KARCH))
    LINUX_KARCH:=$(shell echo $(ARCH) | sed -e 's/i[3-9]86/i386/' \
	  -e 's/mipsel/mips/' \
	  -e 's/mipseb/mips/' \
	  -e 's/sh[234]/sh/' \
	  -e 's/armeb/arm/' \
    )
  endif
endif


define KernelPackage/Defaults
  FILES:=
  AUTOLOAD:=
endef

define ModuleAutoLoad
	export modules=; \
	add_module() { \
		mkdir -p $(2)/etc/modules.d; \
		( \
			for mod in $$$$$$$$2; do \
				getvar mod; \
			done \
		) > $(2)/etc/modules.d/$$$$$$$$1-$(1); \
		modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$1-$(1)"; \
	}; \
	$(3) \
	if [ -n "$$$$$$$$modules" ]; then \
		mkdir -p $(2)/etc/modules.d; \
		echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
		echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
		echo ". /etc/functions.sh" >> $(2)/CONTROL/postinst; \
		echo "load_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
		chmod 0755 $(2)/CONTROL/postinst; \
	fi
endef

ifeq ($(DUMP),)
  -include $(LINUX_DIR)/.config
endif

define KernelPackage
  NAME:=$(1)
  $(eval $(call Package/Default))
  $(eval $(call KernelPackage/Defaults))
  $(eval $(call KernelPackage/$(1)))
  $(eval $(call KernelPackage/$(1)/$(KERNEL)))
  $(eval $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL)))

  define Package/kmod-$(1)
    TITLE:=$(TITLE)
    SECTION:=kernel
    CATEGORY:=Kernel modules
    DESCRIPTION:=$(DESCRIPTION)
    EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE))
    VERSION:=$(LINUX_VERSION)$(if $(PKG_VERSION),+$(PKG_VERSION))-$(BOARD)-$(if $(PKG_RELEASE),$(PKG_RELEASE),$(LINUX_RELEASE))
    $(call KernelPackage/$(1))
    $(call KernelPackage/$(1)/$(KERNEL))
    $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL))
  endef

  ifdef KernelPackage/$(1)/description
    define Package/kmod-$(1)/description
$(call KernelPackage/$(1)/description)
    endef
  endif

  ifneq ($(if $(KCONFIG),$(filter m,$(foreach c,$(filter-out %=y %=n %=m,$(KCONFIG)),$($(c)))),.),)
    ifneq ($(strip $(FILES)),)
      define Package/kmod-$(1)/install
		  mkdir -p $$(1)/lib/modules/$(LINUX_VERSION)
		  $(CP) -L $$(FILES) $$(1)/lib/modules/$(LINUX_VERSION)/
		  $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
		  $(call KernelPackage/$(1)/install,$$(1))
      endef
    endif
  $(if $(CONFIG_PACKAGE_kmod-$(1)),
    else
      compile: kmod-$(1)-unavailable
      kmod-$(1)-unavailable:
		@echo "WARNING: kmod-$(1) is not available in the kernel config"
  )
  endif
  $$(eval $$(call BuildPackage,kmod-$(1)))

  $$(IPKG_kmod-$(1)): $$(wildcard $$(FILES))
endef

define AutoLoad
  add_module $(1) "$(2)";
endef