#
# Copyright (C) 2006-2008 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
# $Id: rules.mk 12601 2008-09-13 17:41:02Z nbd $

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
#"))

empty:=
space:= $(empty) $(empty)
merge=$(subst $(space),,$(1))
confvar=$(call merge,$(foreach v,$(1),$(if $($(v)),y,n)))
strip_last=$(patsubst %.$(lastword $(subst .,$(space),$(1))),%,$(1))

_SINGLE=export MAKEFLAGS=$(space);
ARCH:=$(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)

ifeq ($(ARCH),powerpc)
  FPIC:=-fPIC
else
  FPIC:=-fpic
endif

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:=$(BIN_DIR)/packages/$(ARCH)
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

TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(STAGING_DIR_HOST)/bin:$(STAGING_DIR)/host/bin:$(PATH)
TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3)
TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
TARGET_LDFLAGS:=-L$(TOOLCHAIN_DIR)/lib -L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib

ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
  -include $(TOOLCHAIN_DIR)/info.mk
  REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux-uclibc$(if $(CONFIG_EABI_SUPPORT),gnueabi)
  GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux
  TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-linux-uclibc$(if $(CONFIG_EABI_SUPPORT),gnueabi)-)
  TARGET_CFLAGS+= -fhonour-copts
endif

ifeq ($(CONFIG_SOFT_FLOAT),y)
SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
TARGET_CFLAGS+=-msoft-float
else
SOFT_FLOAT_CONFIG_OPTION:=
endif

export PATH:=$(TARGET_PATH)
export STAGING_DIR
export GCC_HONOUR_COPTS:=0

PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config

export PKG_CONFIG

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:=$(TARGET_CROSS)gcc
TARGET_CXX:=$(TARGET_CROSS)g++
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

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_CXX)" \
  RANLIB=$(TARGET_CROSS)ranlib \
  STRIP=$(TARGET_CROSS)strip \
  OBJCOPY=$(TARGET_CROSS)objcopy \
  OBJDUMP=$(TARGET_CROSS)objdump \
  SIZE=$(TARGET_CROSS)size

# strip an entire directory
ifneq ($(CONFIG_NO_STRIP),)
  RSTRIP:=:
else
  RSTRIP:= \
    NM="$(TARGET_CROSS)nm" \
    STRIP="$(STRIP)" \
    STRIP_KMOD="$(TARGET_CROSS)strip --strip-unneeded --remove-section=.comment" \
    $(SCRIPT_DIR)/rstrip.sh
endif

ifeq ($(CONFIG_ENABLE_LOCALE),true)
  DISABLE_NLS:=
else
  DISABLE_NLS:=--disable-nls
endif

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

ifeq ($(CONFIG_TAR_VERBOSITY),y)
  TAR_OPTIONS:=-xvf -
else
  TAR_OPTIONS:=-xf -
endif

define shvar
V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
endef

define shexport
$(call shvar,$(1))=$$(call $(1))
export $(call shvar,$(1))
endef

# file extension
ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))

all:
FORCE: ;
.PHONY: FORCE

endif #__rules_inc
