make sure a predefined CFLAGS variable does not get in the way (fix for #4038)

[openwrt.git] / include / kernel.mk

diff --git a/include/kernel.mk b/include/kernel.mk
index 1ab85d4..5232148 100644 (file)
--- a/include/kernel.mk
+++ b/include/kernel.mk
@@ -4,28 +4,17 @@
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
 #
-ifeq ($(DUMP),1)
-  KERNEL:=<KERNEL>
-  BOARD:=<BOARD>
-  LINUX_VERSION:=<LINUX_VERSION>
-else
 
-  include $(TOPDIR)/.kernel.mk
+ifeq ($(__target_inc),)
   include $(INCLUDE_DIR)/target.mk
+endif
 
-  # check to see if .kernel.mk matches target.mk
-  ifeq ($(CONFIG_BOARD)-$(CONFIG_KERNEL),$(BOARD)-$(KERNEL))
-     LINUX_VERSION:=$(CONFIG_LINUX_VERSION)
-     LINUX_RELEASE:=$(CONFIG_LINUX_RELEASE)
-     LINUX_KARCH:=$(CONFIG_LINUX_KARCH)
-  else
-    ifneq ($(KERNEL_BUILD),1)
-      # oops, old .kernel.config; rebuild it (hiding the misleading errors this produces)
-      $(warning rebuilding .kernel.mk)
-      $(TOPDIR)/.kernel.mk: FORCE
-               @$(MAKE) -C $(TOPDIR)/target/linux/$(BOARD)-$(KERNEL) $@ &>/dev/null
-    endif
-  endif
+ifeq ($(DUMP),1)
+  KERNEL?=<KERNEL>
+  BOARD?=<BOARD>
+  LINUX_VERSION?=<LINUX_VERSION>
+else
+  export GCC_HONOUR_COPTS=s
 
   ifeq ($(KERNEL),2.6)
     LINUX_KMOD_SUFFIX=ko
@@ -34,27 +23,48 @@ else
   endif
 
   ifneq (,$(findstring uml,$(BOARD)))
-    KERNEL_CC:=$(HOSTCC)
-    KERNEL_CROSS:=
+    KERNEL_CC?=$(HOSTCC)
+    KERNEL_CROSS?=
   else
-    KERNEL_CC:=$(TARGET_CC)
-    KERNEL_CROSS:=$(TARGET_CROSS)
+    KERNEL_CC?=$(TARGET_CC)
+    KERNEL_CROSS?=$(TARGET_CROSS)
   endif
 
-  KERNEL_BUILD_DIR:=$(BUILD_DIR)/linux-$(KERNEL)-$(BOARD)
-  LINUX_DIR := $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
+  PATCH_DIR ?= ./patches$(shell [ -d "./patches-$(KERNEL_PATCHVER)" ] && printf -- "-$(KERNEL_PATCHVER)" || true )
+  FILES_DIR ?= ./files$(shell [ -d "./files-$(KERNEL_PATCHVER)" ] && printf -- "-$(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)
-  MODULES_DIR := $(KERNEL_BUILD_DIR)/modules/$(MODULES_SUBDIR)
   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:=
-  KCONFIG:=m
   AUTOLOAD:=
 endef
 
@@ -79,10 +89,14 @@ define ModuleAutoLoad
                chmod 0755 $(2)/CONTROL/postinst; \
        fi
 endef
- 
+
+ifeq ($(DUMP)$(TARGET_BUILD),)
+  -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)/$(KERNEL)))
@@ -92,28 +106,54 @@ define KernelPackage
     TITLE:=$(TITLE)
     SECTION:=kernel
     CATEGORY:=Kernel modules
-    DEFAULT:=m
     DESCRIPTION:=$(DESCRIPTION)
-    EXTRA_DEPENDS:='kernel (=$(PKG_VERSION)-$(PKG_RELEASE))'
+    EXTRA_DEPENDS:=kernel (=$(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
 
-  ifeq ($(findstring m,$(KCONFIG)),m)
+  ifdef KernelPackage/$(1)/description
+    define Package/kmod-$(1)/description
+$(call KernelPackage/$(1)/description)
+    endef
+  endif
+
+  ifdef KernelPackage/$(1)/config
+    define Package/kmod-$(1)/config
+$(call KernelPackage/$(1)/config)
+    endef
+  endif
+
+  $(STAMP_BUILT): $(LINUX_DIR)/.config
+
+  ifneq ($(if $(filter-out %=y %=n %=m,$(KCONFIG)),$(filter m,$(foreach c,$(filter-out %=y %=n %=m,$(KCONFIG)),$($(c)))),.),)
     ifneq ($(strip $(FILES)),)
       define Package/kmod-$(1)/install
-               mkdir -p $$(1)/lib/modules/$(LINUX_VERSION)
-               $(CP) $$(FILES) $$(1)/lib/modules/$(LINUX_VERSION)/
-               $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
-               $(call KernelPackage/$(1)/install,$$(1))
+                 mkdir -p $$(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
 
+define CompareKernelPatchVer
+  $(shell [ $$(echo $(1) | tr . 0) -$(2) $$(echo $(3) | tr . 0) ] && echo 1 || echo 0)
+endef
+