ramips: rename PSG1218 to match label
[openwrt/openwrt.git] / include / kernel.mk
1 #
2 # Copyright (C) 2006-2015 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 ifneq ($(filter check,$(MAKECMDGOALS)),)
9 CHECK:=1
10 DUMP:=1
11 endif
12
13 ifeq ($(__target_inc),)
14 ifndef CHECK
15 include $(INCLUDE_DIR)/target.mk
16 endif
17 endif
18
19 ifeq ($(DUMP),1)
20 KERNEL?=<KERNEL>
21 BOARD?=<BOARD>
22 LINUX_VERSION?=<LINUX_VERSION>
23 LINUX_VERMAGIC?=<LINUX_VERMAGIC>
24 else
25 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
26 export GCC_HONOUR_COPTS=s
27 endif
28
29 LINUX_KMOD_SUFFIX=ko
30
31 ifneq (,$(findstring uml,$(BOARD)))
32 KERNEL_CC?=$(HOSTCC)
33 KERNEL_CROSS?=
34 else
35 KERNEL_CC?=$(TARGET_CC)
36 KERNEL_CROSS?=$(TARGET_CROSS)
37 endif
38
39 ifeq ($(TARGET_BUILD),1)
40 PATCH_DIR ?= $(CURDIR)/patches$(if $(wildcard ./patches-$(KERNEL_PATCHVER)),-$(KERNEL_PATCHVER))
41 FILES_DIR ?= $(foreach dir,$(wildcard $(CURDIR)/files $(CURDIR)/files-$(KERNEL_PATCHVER)),"$(dir)")
42 endif
43 KERNEL_BUILD_DIR ?= $(BUILD_DIR)/linux-$(BOARD)$(if $(SUBTARGET),_$(SUBTARGET))
44 LINUX_DIR ?= $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
45 LINUX_UAPI_DIR=uapi/
46 LINUX_VERMAGIC:=$(strip $(shell cat $(LINUX_DIR)/.vermagic 2>/dev/null))
47 LINUX_VERMAGIC:=$(if $(LINUX_VERMAGIC),$(LINUX_VERMAGIC),unknown)
48
49 LINUX_UNAME_VERSION:=$(if $(word 3,$(subst ., ,$(KERNEL_BASE))),$(KERNEL_BASE),$(KERNEL_BASE).0)
50 ifneq ($(findstring -rc,$(LINUX_VERSION)),)
51 LINUX_UNAME_VERSION:=$(LINUX_UNAME_VERSION)-$(strip $(lastword $(subst -, ,$(LINUX_VERSION))))
52 endif
53
54 MODULES_SUBDIR:=lib/modules/$(LINUX_UNAME_VERSION)
55 TARGET_MODULES_DIR := $(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
56
57 LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux
58
59 LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.xz
60 TESTING:=$(if $(findstring -rc,$(LINUX_VERSION)),/testing,)
61 ifeq ($(call qstrip,$(CONFIG_EXTERNAL_KERNEL_TREE))$(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI)),)
62 LINUX_SITE:=@KERNEL/linux/kernel/v$(word 1,$(subst ., ,$(KERNEL_BASE))).x$(TESTING)
63 endif
64
65 ifneq ($(TARGET_BUILD),1)
66 PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)$(if $(PKG_VERSION),-$(PKG_VERSION))
67 endif
68 endif
69
70 ifneq (,$(findstring uml,$(BOARD)))
71 LINUX_KARCH=um
72 else ifneq (,$(findstring $(ARCH) , aarch64 aarch64_be ))
73 LINUX_KARCH := arm64
74 else ifneq (,$(findstring $(ARCH) , arceb ))
75 LINUX_KARCH := arc
76 else ifneq (,$(findstring $(ARCH) , armeb ))
77 LINUX_KARCH := arm
78 else ifneq (,$(findstring $(ARCH) , mipsel mips64 mips64el ))
79 LINUX_KARCH := mips
80 else ifneq (,$(findstring $(ARCH) , sh2 sh3 sh4 ))
81 LINUX_KARCH := sh
82 else ifneq (,$(findstring $(ARCH) , i386 x86_64 ))
83 LINUX_KARCH := x86
84 else
85 LINUX_KARCH := $(ARCH)
86 endif
87
88 define KernelPackage/Defaults
89 FILES:=
90 AUTOLOAD:=
91 PKGFLAGS+=nonshared
92 endef
93
94 define ModuleAutoLoad
95 $(SH_FUNC) \
96 export modules=; \
97 probe_module() { \
98 mods="$$$$$$$$1"; \
99 boot="$$$$$$$$2"; \
100 shift 2; \
101 for mod in $(sort $$$$$$$$mods); do \
102 mkdir -p $(2)/etc/modules.d; \
103 echo "$$$$$$$$mod" >> $(2)/etc/modules.d/$(1); \
104 done; \
105 if [ -e $(2)/etc/modules.d/$(1) ]; then \
106 if [ "$$$$$$$$boot" = "1" ]; then \
107 mkdir -p $(2)/etc/modules-boot.d; \
108 ln -s ../modules.d/$(1) $(2)/etc/modules-boot.d/; \
109 fi; \
110 modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$mods"; \
111 fi; \
112 }; \
113 add_module() { \
114 priority="$$$$$$$$1"; \
115 mods="$$$$$$$$2"; \
116 boot="$$$$$$$$3"; \
117 shift 3; \
118 for mod in $(sort $$$$$$$$mods); do \
119 mkdir -p $(2)/etc/modules.d; \
120 echo "$$$$$$$$mod" >> $(2)/etc/modules.d/$$$$$$$$priority-$(1); \
121 done; \
122 if [ -e $(2)/etc/modules.d/$$$$$$$$priority-$(1) ]; then \
123 if [ "$$$$$$$$boot" = "1" ]; then \
124 mkdir -p $(2)/etc/modules-boot.d; \
125 ln -s ../modules.d/$$$$$$$$priority-$(1) $(2)/etc/modules-boot.d/; \
126 fi; \
127 modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$priority-$(1)"; \
128 fi; \
129 }; \
130 $(3) \
131 if [ -n "$$$$$$$$modules" ]; then \
132 mkdir -p $(2)/etc/modules.d; \
133 mkdir -p $(2)/CONTROL; \
134 echo "#!/bin/sh" > $(2)/CONTROL/postinst-pkg; \
135 echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst-pkg; \
136 echo ". /lib/functions.sh" >> $(2)/CONTROL/postinst-pkg; \
137 echo "insert_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst-pkg; \
138 chmod 0755 $(2)/CONTROL/postinst-pkg; \
139 fi
140 endef
141
142 ifeq ($(DUMP)$(TARGET_BUILD),)
143 -include $(LINUX_DIR)/.config
144 endif
145
146 define KernelPackage/depends
147 $(STAMP_BUILT): $(LINUX_DIR)/.config
148 define KernelPackage/depends
149 endef
150 endef
151
152 define KernelPackage
153 NAME:=$(1)
154 $(eval $(call Package/Default))
155 $(eval $(call KernelPackage/Defaults))
156 $(eval $(call KernelPackage/$(1)))
157 $(eval $(call KernelPackage/$(1)/$(BOARD)))
158 $(eval $(call KernelPackage/$(1)/$(BOARD)/$(if $(SUBTARGET),$(SUBTARGET),generic)))
159
160 define Package/kmod-$(1)
161 TITLE:=$(TITLE)
162 SECTION:=kernel
163 CATEGORY:=Kernel modules
164 DESCRIPTION:=$(DESCRIPTION)
165 EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(LINUX_RELEASE)-$(LINUX_VERMAGIC))
166 VERSION:=$(LINUX_VERSION)$(if $(PKG_VERSION),+$(PKG_VERSION))-$(if $(PKG_RELEASE),$(PKG_RELEASE),$(LINUX_RELEASE))
167 PKGFLAGS:=$(PKGFLAGS)
168 $(call KernelPackage/$(1))
169 $(call KernelPackage/$(1)/$(BOARD))
170 $(call KernelPackage/$(1)/$(BOARD)/$(if $(SUBTARGET),$(SUBTARGET),generic))
171 endef
172
173 ifdef KernelPackage/$(1)/conffiles
174 define Package/kmod-$(1)/conffiles
175 $(call KernelPackage/$(1)/conffiles)
176 endef
177 endif
178
179 ifdef KernelPackage/$(1)/description
180 define Package/kmod-$(1)/description
181 $(call KernelPackage/$(1)/description)
182 endef
183 endif
184
185 ifdef KernelPackage/$(1)/config
186 define Package/kmod-$(1)/config
187 $(call KernelPackage/$(1)/config)
188 endef
189 endif
190
191 $(call KernelPackage/depends)
192
193 ifneq ($(if $(filter-out %=y %=n %=m,$(KCONFIG)),$(filter m y,$(foreach c,$(filter-out %=y %=n %=m,$(KCONFIG)),$($(c)))),.),)
194 ifneq ($(strip $(FILES)),)
195 define Package/kmod-$(1)/install
196 @for mod in $$(call version_filter,$$(FILES)); do \
197 if grep -q "$$$$$$$${mod##$(LINUX_DIR)/}" "$(LINUX_DIR)/modules.builtin"; then \
198 echo "NOTICE: module '$$$$$$$$mod' is built-in."; \
199 elif [ -e $$$$$$$$mod ]; then \
200 mkdir -p $$(1)/$(MODULES_SUBDIR) ; \
201 $(CP) -L $$$$$$$$mod $$(1)/$(MODULES_SUBDIR)/ ; \
202 else \
203 echo "ERROR: module '$$$$$$$$mod' is missing." >&2; \
204 exit 1; \
205 fi; \
206 done;
207 $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
208 $(call KernelPackage/$(1)/install,$$(1))
209 endef
210 endif
211 $(if $(CONFIG_PACKAGE_kmod-$(1)),
212 else
213 compile: $(1)-disabled
214 $(1)-disabled:
215 @echo "WARNING: kmod-$(1) is not available in the kernel config - generating empty package" >&2
216
217 define Package/kmod-$(1)/install
218 true
219 endef
220 )
221 endif
222 $$(eval $$(call BuildPackage,kmod-$(1)))
223
224 $$(IPKG_kmod-$(1)): $$(wildcard $$(FILES))
225 endef
226
227 version_filter=$(if $(findstring @,$(1)),$(shell $(SCRIPT_DIR)/package-metadata.pl version_filter $(KERNEL_PATCHVER) $(1)),$(1))
228
229 define AutoLoad
230 add_module "$(1)" "$(call version_filter,$(2))" "$(3)";
231 endef
232
233 define AutoProbe
234 probe_module "$(call version_filter,$(1))" "$(2)";
235 endef
236
237 version_field=$(if $(word $(1),$(2)),$(word $(1),$(2)),0)
238 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)) ))
239
240 ifdef DUMP
241 kernel_version_cmp=
242 else
243 kernel_version_cmp=$(shell [ $(call kernel_version_merge,$(call split_version,$(2))) $(1) $(call kernel_version_merge,$(call split_version,$(3))) ] && echo 1 )
244 endif
245
246 CompareKernelPatchVer=$(if $(call kernel_version_cmp,-$(2),$(1),$(3)),1,0)
247
248 kernel_patchver_gt=$(call kernel_version_cmp,-gt,$(KERNEL_PATCHVER),$(1))
249 kernel_patchver_ge=$(call kernel_version_cmp,-ge,$(KERNEL_PATCHVER),$(1))
250 kernel_patchver_eq=$(call kernel_version_cmp,-eq,$(KERNEL_PATCHVER),$(1))
251 kernel_patchver_le=$(call kernel_version_cmp,-le,$(KERNEL_PATCHVER),$(1))
252 kernel_patchver_lt=$(call kernel_version_cmp,-lt,$(KERNEL_PATCHVER),$(1))
253