standardize Makefile, change BUILD_DIR to KERNEL_BUILD_DIR

[openwrt.git] / rules.mk

diff --git a/rules.mk b/rules.mk
index 42aedcf..3645b06 100644 (file)
--- a/rules.mk
+++ b/rules.mk
@@ -1,3 +1,10 @@
+# 
+# Copyright (C) 2006 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
 -include $(TOPDIR)/.config
 include $(TOPDIR)/include/verbose.mk
 
@@ -21,19 +28,24 @@ BIN_DIR:=$(TOPDIR)/bin
 PACKAGE_DIR:=$(BIN_DIR)/packages
 IPKG_TARGET_DIR:=$(PACKAGE_DIR)
 BUILD_DIR:=$(TOPDIR)/build_$(ARCH)
+TMP_DIR:=$(BUILD_DIR)/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:=$(STAGING_DIR)/bin/$(OPTIMIZE_FOR_CPU)-linux-uclibc-
-TARGET_CROSS:=$(STAGING_DIR)/bin/$(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_PATH:=$(STAGING_DIR)/usr/bin:$(STAGING_DIR)/bin:$(PATH)
 TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)
 
+export PATH:=$(TARGET_PATH)
+
 LINUX_DIR:=$(BUILD_DIR)/linux
 LINUX_HEADERS_DIR:=$(TOOL_BUILD_DIR)/linux
 
@@ -45,6 +57,12 @@ PATCH:=$(SCRIPT_DIR)/patch-kernel.sh
 SED:=$(STAGING_DIR)/bin/sed -i -e
 CP:=cp -fpR
 
+ifneq ($(CONFIG_CCACHE),)
+  # FIXME: move this variable to a better location
+  export CCACHE_DIR=$(TOPDIR)/ccache_$(ARCH)
+  TARGET_CC:= ccache $(TARGET_CC)
+endif
+
 HOST_ARCH:=$(shell $(HOSTCC) -dumpmachine | sed -e s'/-.*//' \
        -e 's/sparc.*/sparc/' \
        -e 's/arm.*/arm/' \
@@ -61,13 +79,12 @@ HOST_ARCH:=$(shell $(HOSTCC) -dumpmachine | sed -e s'/-.*//' \
 GNU_HOST_NAME:=$(HOST_ARCH)-pc-linux-gnu
 
 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_CROSS)gcc \
-  GCC=$(TARGET_CROSS)gcc \
+  CC="$(TARGET_CC)" \
+  GCC="$(TARGET_CC)" \
   CXX=$(TARGET_CROSS)g++ \
   RANLIB=$(TARGET_CROSS)ranlib \
   STRIP=$(TARGET_CROSS)strip
@@ -88,7 +105,7 @@ IPKG:= \
 
 # invoke ipkg-build with some default options
 IPKG_BUILD:= \
-  PATH="$(TARGET_PATH)" ipkg-build -c -o root -g root
+  ipkg-build -c -o root -g root
 
 ifeq ($(CONFIG_ENABLE_LOCALE),true)
   DISABLE_NLS:=
@@ -109,3 +126,4 @@ endif
 all:
 FORCE: ;
 .PHONY: FORCE
+%: ;