kernel.mk: add a new helper for comparing kernel versions, which can take 1 - 4 field...

[openwrt/openwrt.git] / include / kernel.mk

diff --git a/include/kernel.mk b/include/kernel.mk
index ee4d4b8dc648c63a496030327aeb1da24ed63a07..e120cef1fa2527526469195c0a21f81831c6743f 100644 (file)
--- a/include/kernel.mk
+++ b/include/kernel.mk
@@ -16,11 +16,7 @@ ifeq ($(DUMP),1)
 else
   export GCC_HONOUR_COPTS=s
 
-  ifeq ($(KERNEL),2.6)
-    LINUX_KMOD_SUFFIX=ko
-  else
-    LINUX_KMOD_SUFFIX=o
-  endif
+  LINUX_KMOD_SUFFIX=ko
 
   ifneq (,$(findstring uml,$(BOARD)))
     KERNEL_CC?=$(HOSTCC)
@@ -30,8 +26,10 @@ else
     KERNEL_CROSS?=$(TARGET_CROSS)
   endif
 
-  PATCH_DIR ?= ./patches$(if $(wildcard ./patches-$(KERNEL_PATCHVER)),-$(KERNEL_PATCHVER))
-  FILES_DIR ?= $(foreach dir,$(wildcard ./files ./files-$(KERNEL_PATCHVER)),"$(dir)")
+  ifeq ($(TARGET_BUILD),1)
+    PATCH_DIR ?= ./patches$(if $(wildcard ./patches-$(KERNEL_PATCHVER)),-$(KERNEL_PATCHVER))
+    FILES_DIR ?= $(foreach dir,$(wildcard ./files ./files-$(KERNEL_PATCHVER)),"$(dir)")
+  endif
   KERNEL_BUILD_DIR ?= $(BUILD_DIR_BASE)/linux-$(BOARD)$(if $(SUBTARGET),_$(SUBTARGET))$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
   LINUX_DIR ?= $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
 
@@ -42,7 +40,9 @@ else
 
   LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
   TESTING:=$(if $(findstring -rc,$(LINUX_VERSION)),/testing,)
-  LINUX_SITE:=@KERNEL/linux/kernel/v$(KERNEL)$(TESTING) \
+  ifeq ($(call qstrip,$(CONFIG_EXTERNAL_KERNEL_TREE)),)
+    LINUX_SITE:=@KERNEL/linux/kernel/v$(KERNEL)$(TESTING)
+  endif
 
   ifneq ($(TARGET_BUILD),1)
     PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)$(if $(PKG_VERSION),-$(PKG_VERSION))
@@ -64,15 +64,23 @@ define KernelPackage/Defaults
 endef
 
 define ModuleAutoLoad
+       $(SH_FUNC) \
        export modules=; \
        add_module() { \
+               priority="$$$$$$$$1"; \
+               mods="$$$$$$$$2"; \
+               boot="$$$$$$$$3"; \
+               shift 3; \
                mkdir -p $(2)/etc/modules.d; \
                ( \
-                       for mod in $$$$$$$$2; do \
-                               getvar mod; \
+                       [ "$$$$$$$$boot" = "1" ] && { \
+                               echo '# May be required for rootfs' ; \
+                       } ; \
+                       for mod in $$$$$$$$mods; do \
+                               echo "$$$$$$$$mod"; \
                        done \
-               ) > $(2)/etc/modules.d/$$$$$$$$1-$(1); \
-               modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$1-$(1)"; \
+               ) > $(2)/etc/modules.d/$$$$$$$$priority-$(1); \
+               modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$priority-$(1)"; \
        }; \
        $(3) \
        if [ -n "$$$$$$$$modules" ]; then \
@@ -101,7 +109,6 @@ define KernelPackage
   $(eval $(call Package/Default))
   $(eval $(call KernelPackage/Defaults))
   $(eval $(call KernelPackage/$(1)))
-  $(eval $(call KernelPackage/$(1)/$(KERNEL)))
   $(eval $(call KernelPackage/$(1)/$(BOARD)))
 
   define Package/kmod-$(1)
@@ -112,7 +119,6 @@ define KernelPackage
     EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(LINUX_RELEASE))
     VERSION:=$(LINUX_VERSION)$(if $(PKG_VERSION),+$(PKG_VERSION))-$(if $(PKG_RELEASE),$(PKG_RELEASE),$(LINUX_RELEASE))
     $(call KernelPackage/$(1))
-    $(call KernelPackage/$(1)/$(KERNEL))
     $(call KernelPackage/$(1)/$(BOARD))
   endef
 
@@ -152,14 +158,23 @@ $(call KernelPackage/$(1)/config)
 endef
 
 define AutoLoad
-  add_module $(1) "$(2)";
+  add_module "$(1)" "$(2)" "$(3)";
 endef
 
+version_field=$(if $(word $(1),$(2)),$(word $(1),$(2)),0)
+kernel_version_merge=$$(( ($(call version_field,1,$(1)) << 24) + ($(call version_field,2,$(1)) << 16) + ($(call version_field,3,$(1)) << 8) + $(call version_field,4,$(1)) ))
+
 ifdef DUMP
-  CompareKernelPatchVer=0
+  kernel_version_cmp=
 else
-  define CompareKernelPatchVer
-    $(shell [ $$(echo $(1) | tr . 0) -$(2) $$(echo $(3) | tr . 0) ] && echo 1 || echo 0)
-  endef
+  kernel_version_cmp=$(shell [ $(call kernel_version_merge,$(call split_version,$(2))) $(1) $(call kernel_version_merge,$(call split_version,$(3))) ] && echo 1 )
 endif
 
+CompareKernelPatchVer=$(if $(call kernel_version_cmp,-$(2),$(1),$(3)),1,0)
+
+kernel_patchver_gt=$(call kernel_version_cmp,-gt,$(KERNEL_PATCHVER),$(1))
+kernel_patchver_ge=$(call kernel_version_cmp,-ge,$(KERNEL_PATCHVER),$(1))
+kernel_patchver_eq=$(call kernel_version_cmp,-eq,$(KERNEL_PATCHVER),$(1))
+kernel_patchver_le=$(call kernel_version_cmp,-lt,$(KERNEL_PATCHVER),$(1))
+kernel_patchver_lt=$(call kernel_version_cmp,-le,$(KERNEL_PATCHVER),$(1))
+