document config_foreach, close #2162

[openwrt.git] / rules.mk

diff --git a/rules.mk b/rules.mk
index 89adb3e..2437e93 100644 (file)
--- a/rules.mk
+++ b/rules.mk
@@ -5,13 +5,16 @@
 # See /LICENSE for more information.
 #
 
--include $(TOPDIR)/.config
+ifeq ($(DUMP),)
+  -include $(TOPDIR)/.config
+endif
 include $(TOPDIR)/include/verbose.mk
 
-export SHELL=/bin/bash
+export SHELL=/usr/bin/env bash -c '. $(TOPDIR)/include/shell.sh; eval "$$2"' --
 
 ARCH:=$(strip $(subst ",, $(CONFIG_ARCH)))
 TARGET_OPTIMIZATION:=$(strip $(subst ",, $(CONFIG_TARGET_OPTIMIZATION)))
+BUILD_DIR_SUFFIX:=$(strip $(subst ",, $(CONFIG_BUILD_SUFFIX)))
 WGET:=$(strip $(subst ",, $(CONFIG_WGET)))
 #"))"))")) # fix vim's broken syntax highlighting
 
@@ -22,28 +25,33 @@ OPTIMIZE_FOR_CPU:=$(ARCH)
 DL_DIR:=$(TOPDIR)/dl
 INCLUDE_DIR:=$(TOPDIR)/include
 SCRIPT_DIR:=$(TOPDIR)/scripts
-TOOL_BUILD_DIR:=$(TOPDIR)/toolchain_build_$(ARCH)
+TOOL_BUILD_DIR:=$(TOPDIR)/tool_build
+TOOLCHAIN_BUILD_DIR:=$(TOPDIR)/toolchain_build_$(ARCH)
 STAGING_DIR:=$(TOPDIR)/staging_dir_$(ARCH)
 BIN_DIR:=$(TOPDIR)/bin
 PACKAGE_DIR:=$(BIN_DIR)/packages
 IPKG_TARGET_DIR:=$(PACKAGE_DIR)
-BUILD_DIR:=$(TOPDIR)/build_$(ARCH)
-TMP_DIR:=$(BUILD_DIR)/tmp
+BUILD_DIR:=$(TOPDIR)/build_$(ARCH)$(BUILD_DIR_SUFFIX)
+TMP_DIR:=$(TOPDIR)/tmp
 STAMP_DIR:=$(BUILD_DIR)/stamp
 TARGET_DIR:=$(BUILD_DIR)/root
 IPKG_STATE_DIR:=$(TARGET_DIR)/usr/lib/ipkg
 
-REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux-uclibc
-GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux
-KERNEL_CROSS:=$(OPTIMIZE_FOR_CPU)-linux-uclibc-
-TARGET_CROSS:=$(OPTIMIZE_FOR_CPU)-linux-uclibc-
+ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
+  REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux-uclibc
+  GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux
+  TARGET_CROSS:=$(OPTIMIZE_FOR_CPU)-linux-uclibc-
+endif
+
 IMAGE:=$(BUILD_DIR)/root_fs_$(ARCH)
 
-TARGET_PATH:=$(STAGING_DIR)/usr/bin:$(STAGING_DIR)/bin:/bin:/sbin:/usr/bin:/usr/sbin
-TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)
+TARGET_PATH:=$(STAGING_DIR)/usr/sbin:$(STAGING_DIR)/usr/bin:$(STAGING_DIR)/bin:$(PATH)
+TARGET_CFLAGS:=$(TARGET_OPTIMIZATION) -fhonour-copts
+
+export PATH:=$(TARGET_PATH)
 
 LINUX_DIR:=$(BUILD_DIR)/linux
-LINUX_HEADERS_DIR:=$(TOOL_BUILD_DIR)/linux
+LINUX_HEADERS_DIR:=$(TOOLCHAIN_BUILD_DIR)/linux
 
 # APPLICATIONS #
 HOSTCC:=gcc
@@ -53,47 +61,45 @@ PATCH:=$(SCRIPT_DIR)/patch-kernel.sh
 SED:=$(STAGING_DIR)/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 ($(CONFIG_CCACHE),)
-  export CCACHE_DIR:=$(TOPDIR)/ccache_$(ARCH)
-  TARGET_CC:=ccache $(TARGET_CC)
+  # FIXME: move this variable to a better location
+  export CCACHE_DIR=$(STAGING_DIR)/ccache
+  TARGET_CC:= ccache $(TARGET_CC)
 endif
 
-HOST_ARCH:=$(shell $(HOSTCC) -dumpmachine | sed -e s'/-.*//' \
-       -e 's/sparc.*/sparc/' \
-       -e 's/arm.*/arm/' \
-       -e 's/m68k.*/m68k/' \
-       -e 's/ppc/powerpc/' \
-       -e 's/v850.*/v850/' \
-       -e 's/sh[234]/sh/' \
-       -e 's/mips-.*/mips/' \
-       -e 's/mipsel-.*/mipsel/' \
-       -e 's/cris.*/cris/' \
-       -e 's/i[3-9]86/i386/' \
-       )
-
-GNU_HOST_NAME:=$(HOST_ARCH)-pc-linux-gnu
+EXTRA_CPPFLAGS := -I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
+EXTRA_CFLAGS := $(EXTRA_CPPFLAGS)
+EXTRA_LDFLAGS := -L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
 
 TARGET_CONFIGURE_OPTS:= \
-  PATH=$(TARGET_PATH) \
   AR=$(TARGET_CROSS)ar \
-  AS=$(TARGET_CROSS)as \
+  AS="$(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
+  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="$(TARGET_CROSS)strip --strip-unneeded --remove-section=.comment" \
-  PATH=$(TARGET_PATH) \
   $(SCRIPT_DIR)/rstrip.sh
 
 # where to build (and put) .ipk packages
 IPKG:= \
+  PATH="$(STAGING_DIR)/bin:$(PATH)" \
   IPKG_TMP=$(BUILD_DIR)/tmp \
   IPKG_INSTROOT=$(TARGET_DIR) \
   IPKG_CONF_DIR=$(STAGING_DIR)/etc \
@@ -102,7 +108,7 @@ IPKG:= \
 
 # invoke ipkg-build with some default options
 IPKG_BUILD:= \
-  PATH="$(TARGET_PATH)" ipkg-build -c -o root -g root
+  ipkg-build -c -o 0 -g 0
 
 ifeq ($(CONFIG_ENABLE_LOCALE),true)
   DISABLE_NLS:=
@@ -115,12 +121,20 @@ ifneq ($(CONFIG_LARGEFILE),y)
 endif
 
 ifeq ($(CONFIG_TAR_VERBOSITY),y)
-  TAR_OPTIONS=-xvf
+  TAR_OPTIONS:=-xvf -
 else
-  TAR_OPTIONS=-xf
+  TAR_OPTIONS:=-xf -
 endif
 
+define shvar
+V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
+endef
+
+define shexport
+$(call shvar,$(1))=$$(call $(1))
+export $(call shvar,$(1))
+endef
+
 all:
 FORCE: ;
 .PHONY: FORCE
-%: ;