add external kernel tree support

[openwrt.git] / rules.mk

diff --git a/rules.mk b/rules.mk
index 9d924a5..d36c994 100644 (file)
--- a/rules.mk
+++ b/rules.mk
@@ -1,149 +1,153 @@
-include $(TOPDIR)/.config
-SHELL=/bin/bash
-export SHELL
-
-ifeq ($(V),)
-V=5
+# 
+# Copyright (C) 2006-2007 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+ifneq ($(__rules_inc),1)
+__rules_inc=1
+
+ifeq ($(DUMP),)
+  -include $(TOPDIR)/.config
+endif
+include $(TOPDIR)/include/debug.mk
+include $(TOPDIR)/include/verbose.mk
+
+TMP_DIR:=$(TOPDIR)/tmp
+
+export SHELL=/usr/bin/env bash -c '. $(TOPDIR)/include/shell.sh; eval "$$2"' --
+
+define qstrip
+$(strip $(subst ",,$(1)))
+endef
+#"))
+
+ARCH:=$(call qstrip,$(shell echo $(CONFIG_ARCH) | sed -e 's/i[3-9]86/i386/'))
+BOARD:=$(call qstrip,$(CONFIG_TARGET_BOARD))
+TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
+BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
+GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
+SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
+
+OPTIMIZE_FOR_CPU:=$(ARCH)
+
+DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)
+BIN_DIR:=$(TOPDIR)/bin
+INCLUDE_DIR:=$(TOPDIR)/include
+SCRIPT_DIR:=$(TOPDIR)/scripts
+BUILD_DIR_BASE:=$(TOPDIR)/build_dir
+BUILD_DIR:=$(BUILD_DIR_BASE)/$(ARCH)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
+BUILD_DIR_HOST:=$(BUILD_DIR_BASE)/host
+BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(ARCH)_gcc$(GCCV)
+STAGING_DIR:=$(TOPDIR)/staging_dir/$(ARCH)
+STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
+TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(ARCH)_gcc$(GCCV)
+PACKAGE_DIR:=$(BIN_DIR)/packages/$(TARGET)
+STAMP_DIR:=$(BUILD_DIR)/stamp
+STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
+TARGET_DIR:=$(BUILD_DIR)/root-$(BOARD)
+IPKG_STATE_DIR:=$(TARGET_DIR)/usr/lib/ipkg
+
+ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
+  -include $(TOOLCHAIN_DIR)/info.mk
+  REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux-uclibc
+  GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux
+  TARGET_CROSS?=$(OPTIMIZE_FOR_CPU)-linux-uclibc-

 endif
 
 endif
 

+TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(STAGING_DIR_HOST)/bin:$(STAGING_DIR)/usr/bin:$(PATH)
+TARGET_CFLAGS:=$(TARGET_OPTIMIZATION) -fhonour-copts
+TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
+TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib

 
 

-ifneq ($(V),0)
-TRACE:=echo "---> "
-START_TRACE:=echo -n "---> "
-END_TRACE:=echo
-else
-START_TRACE:=:
-END_TRACE:=:
-TRACE:=:
-endif
+export PATH:=$(TARGET_PATH)
+export STAGING_DIR
+export GCC_HONOUR_COPTS:=0

 
 

-ifeq (${shell [ "$(V)" -ge 5 ] && echo 1},)
-CMD_TRACE:=:
-PKG_TRACE:=:
-else
-CMD_TRACE:=echo -n
-PKG_TRACE:=echo "------> "
-endif
+PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config

 
 

-ifeq (${shell [ "$(V)" -ge 10 ] && echo 1},)
-EXTRA_MAKEFLAGS:=-s
-MAKE_TRACE:=2>&1 >&/dev/null || { echo "Build failed. Please re-run make with V=99 to see what's going on"; /bin/false; }
-else
-MAKE_TRACE:=
-EXTRA_MAKEFLAGS:=
-TRACE:=:
-PKG_TRACE:=:
-CMD_TRACE:=:
-START_TRACE:=:
-END_TRACE:=:
-endif
+export PKG_CONFIG

 
 

-CP=cp -fpR
-MAKE1=make
-MAKEFLAGS=-j$(BR2_JLEVEL) V=$(V) $(EXTRA_MAKEFLAGS)
-# Strip off the annoying quoting
-ARCH:=$(strip $(subst ",, $(BR2_ARCH)))
-WGET:=$(strip $(subst ",, $(BR2_WGET)))
-GCC_VERSION:=$(strip $(subst ",, $(BR2_GCC_VERSION)))
-GCC_USE_SJLJ_EXCEPTIONS:=$(strip $(subst ",, $(BR2_GCC_USE_SJLJ_EXCEPTIONS)))
-TARGET_OPTIMIZATION:=$(strip $(subst ",, $(BR2_TARGET_OPTIMIZATION)))
-#"))"))"))"))")) # for vim's broken syntax highlighting :)
-
-
-ifeq ($(BR2_SOFT_FLOAT),y)
-# gcc 3.4.x soft float configuration is different than previous versions.
-ifeq ($(findstring 3.4.,$(GCC_VERSION)),3.4.)
-SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
-else
-SOFT_FLOAT_CONFIG_OPTION:=--without-float
-endif
-TARGET_SOFT_FLOAT:=-msoft-float
-ARCH_FPU_SUFFIX:=_nofpu
-else
-SOFT_FLOAT_CONFIG_OPTION:=
-TARGET_SOFT_FLOAT:=
-ARCH_FPU_SUFFIX:=
-endif
+LINUX_HEADERS_DIR:=$(BUILD_DIR_TOOLCHAIN)/linux
+
+HOSTCC:=gcc
+HOST_CFLAGS:=-O2 -I$(STAGING_DIR_HOST)/include
+HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib

 
 

+TARGET_CC:=$(TARGET_CROSS)gcc
+STRIP:=$(STAGING_DIR_HOST)/bin/sstrip
+PATCH:=$(SCRIPT_DIR)/patch-kernel.sh
+SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
+CP:=cp -fpR
+
+INSTALL_BIN:=install -m0755
+INSTALL_DIR:=install -d -m0755
+INSTALL_DATA:=install -m0644
+INSTALL_CONF:=install -m0600
+
+ifneq ($(CONFIG_CCACHE),)
+  # FIXME: move this variable to a better location
+  export CCACHE_DIR=$(STAGING_DIR)/ccache
+  TARGET_CC:= ccache $(TARGET_CC)
+endif

 
 

-ifeq ($(BR2_TAR_VERBOSITY),y)
-TAR_OPTIONS=-xvf
+TARGET_CONFIGURE_OPTS:= \
+  AR=$(TARGET_CROSS)ar \
+  AS="$(TARGET_CC) -c $(TARGET_CFLAGS)" \
+  LD=$(TARGET_CROSS)ld \
+  NM=$(TARGET_CROSS)nm \
+  CC="$(TARGET_CC)" \
+  GCC="$(TARGET_CC)" \
+  CXX=$(TARGET_CROSS)g++ \
+  RANLIB=$(TARGET_CROSS)ranlib \
+  STRIP=$(TARGET_CROSS)strip \
+  OBJCOPY=$(TARGET_CROSS)objcopy \
+  OBJDUMP=$(TARGET_CROSS)objdump \
+  SIZE=$(TARGET_CROSS)size
+
+# strip an entire directory
+RSTRIP:= \
+  NM="$(TARGET_CROSS)nm" \
+  STRIP="$(STRIP)" \
+  STRIP_KMOD="$(TARGET_CROSS)strip --strip-unneeded --remove-section=.comment" \
+  $(SCRIPT_DIR)/rstrip.sh
+
+ifeq ($(CONFIG_ENABLE_LOCALE),true)
+  DISABLE_NLS:=

 else
 else

-TAR_OPTIONS=-xf
+  DISABLE_NLS:=--disable-nls

 endif
 
 endif
 

-ifneq ($(BR2_LARGEFILE),y)
-DISABLE_LARGEFILE= --disable-largefile
+ifneq ($(CONFIG_LARGEFILE),y)
+  DISABLE_LARGEFILE= --disable-largefile

 endif
 endif

-TARGET_CFLAGS:=$(TARGET_OPTIMIZATION) $(TARGET_DEBUGGING)

 
 

-OPTIMIZE_FOR_CPU=$(ARCH)
-HOSTCC:=gcc
-BASE_DIR:=$(TOPDIR)
-DL_DIR:=$(BASE_DIR)/dl
-BUILD_DIR:=$(BASE_DIR)/build_$(ARCH)$(ARCH_FPU_SUFFIX)
-STAGING_DIR:=$(BASE_DIR)/staging_dir_$(ARCH)$(ARCH_FPU_SUFFIX)
-SCRIPT_DIR:=$(BASE_DIR)/scripts
-BIN_DIR:=$(BASE_DIR)/bin
-STAMP_DIR:=$(BUILD_DIR)/stamp
-PACKAGE_DIR:=$(BIN_DIR)/packages
-STAMP_DIR:=$(BUILD_DIR)/stamp
-TARGET_DIR:=$(BUILD_DIR)/root
-TOOL_BUILD_DIR=$(BASE_DIR)/toolchain_build_$(ARCH)$(ARCH_FPU_SUFFIX)
-TARGET_PATH=$(STAGING_DIR)/usr/bin:$(STAGING_DIR)/bin:/bin:/sbin:/usr/bin:/usr/sbin
-IMAGE:=$(BUILD_DIR)/root_fs_$(ARCH)$(ARCH_FPU_SUFFIX)
-REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux-uclibc
-GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux
-KERNEL_CROSS:=$(STAGING_DIR)/bin/$(OPTIMIZE_FOR_CPU)-linux-uclibc-
-TARGET_CROSS:=$(STAGING_DIR)/bin/$(OPTIMIZE_FOR_CPU)-linux-uclibc-
-TARGET_CC:=$(TARGET_CROSS)gcc
-STRIP:=$(STAGING_DIR)/bin/sstrip
-PATCH=$(SCRIPT_DIR)/patch-kernel.sh
-SED:=$(STAGING_DIR)/bin/sed -i -e
-LINUX_DIR:=$(BUILD_DIR)/linux
-LINUX_HEADERS_DIR:=$(TOOL_BUILD_DIR)/linux
-
-
-HOST_ARCH:=$(shell $(HOSTCC) -dumpmachine | sed -e s'/-.*//' \
-       -e 's/sparc.*/sparc/' \
-       -e 's/arm.*/arm/g' \
-       -e 's/m68k.*/m68k/' \
-       -e 's/ppc/powerpc/g' \
-       -e 's/v850.*/v850/g' \
-       -e 's/sh[234]/sh/' \
-       -e 's/mips-.*/mips/' \
-       -e 's/mipsel-.*/mipsel/' \
-       -e 's/cris.*/cris/' \
-       -e 's/i[3-9]86/i386/' \
-       )
-GNU_HOST_NAME:=$(HOST_ARCH)-pc-linux-gnu
-TARGET_CONFIGURE_OPTS=PATH=$(TARGET_PATH) \
-               AR=$(TARGET_CROSS)ar \
-               AS=$(TARGET_CROSS)as \
-               LD=$(TARGET_CROSS)ld \
-               NM=$(TARGET_CROSS)nm \
-               CC=$(TARGET_CROSS)gcc \
-               GCC=$(TARGET_CROSS)gcc \
-               CXX=$(TARGET_CROSS)g++ \
-               RANLIB=$(TARGET_CROSS)ranlib
-
-ifeq ($(ENABLE_LOCALE),true)
-DISABLE_NLS:=
+ifeq ($(CONFIG_TAR_VERBOSITY),y)
+  TAR_OPTIONS:=-xvf -

 else
 else

-DISABLE_NLS:=--disable-nls
+  TAR_OPTIONS:=-xf -

 endif
 
 endif
 

-ifeq ($(BR2_ENABLE_MULTILIB),y)
-MULTILIB:=--enable-multilib
-endif
+define shvar
+V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
+endef
+
+define shexport
+$(call shvar,$(1))=$$(call $(1))
+export $(call shvar,$(1))
+endef
+
+empty:=
+space:= $(empty) $(empty)
+merge=$(subst $(space),,$(1))
+confvar=$(call merge,$(foreach v,$(1),$(if $($(v)),y,n)))

 
 

-# invoke ipkg-build with some default options
-IPKG_BUILD := PATH="$(TARGET_PATH)" ipkg-build -c -o root -g root
-# where to build (and put) .ipk packages
-IPKG_TARGET_DIR := $(PACKAGE_DIR)
-IPKG:=IPKG_TMP=$(BUILD_DIR)/tmp IPKG_INSTROOT=$(TARGET_DIR) IPKG_CONF_DIR=$(STAGING_DIR)/etc IPKG_OFFLINE_ROOT=$(BUILD_DIR)/root $(SCRIPT_DIR)/ipkg -force-defaults -force-depends
-IPKG_STATE_DIR := $(TARGET_DIR)/usr/lib/ipkg
+# file extension
+ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))

 
 

-RSTRIP:=STRIP="$(STRIP)" $(SCRIPT_DIR)/rstrip.sh
-RSTRIP_KMOD:=STRIP="$(TARGET_CROSS)strip --strip-unneeded --remove-section=.comment" $(SCRIPT_DIR)/rstrip.sh
+all:
+FORCE: ;
+.PHONY: FORCE

 
 

+endif #__rules_inc