[toolchain] add external toolchain support, enhance native toolchain support (special thanks to Luigi Mantellini for his help... and patience ;)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17682 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 53 insertions, 19 deletions

diff --git a/rules.mk b/rules.mk
index f4b85f864d..20cb85e304 100644
--- a/rules.mk
+++ b/rules.mk
@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2006-2008 OpenWrt.org
+# Copyright (C) 2006-2009 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -34,9 +34,6 @@ BOARD:=$(call qstrip,$(CONFIG_TARGET_BOARD))
 TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
 TARGET_SUFFIX=$(call qstrip,$(CONFIG_TARGET_SUFFIX))
 BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
-GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
-LIBC:=$(call qstrip,$(CONFIG_LIBC))
-LIBCV:=$(call qstrip,$(CONFIG_LIBC_VERSION))
 SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
 
 OPTIMIZE_FOR_CPU=$(subst i386,i486,$(ARCH))
@@ -52,13 +49,32 @@ BIN_DIR:=$(TOPDIR)/bin
 INCLUDE_DIR:=$(TOPDIR)/include
 SCRIPT_DIR:=$(TOPDIR)/scripts
 BUILD_DIR_BASE:=$(TOPDIR)/build_dir
-BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(ARCH)_$(LIBC)-$(LIBCV)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
 BUILD_DIR_HOST:=$(BUILD_DIR_BASE)/host
-BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(ARCH)_gcc-$(GCCV)_$(LIBC)-$(LIBCV)
-STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(ARCH)_$(LIBC)-$(LIBCV)
 STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
-TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(ARCH)_gcc-$(GCCV)_$(LIBC)-$(LIBCV)
-PACKAGE_DIR:=$(BIN_DIR)/packages/$(BOARD)_$(LIBC)-$(LIBCV)
+ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
+  GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
+  LIBC:=$(call qstrip,$(CONFIG_LIBC))
+  LIBCV:=$(call qstrip,$(CONFIG_LIBC_VERSION))
+  REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))
+  GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux
+  BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(ARCH)_$(LIBC)-$(LIBCV)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
+  STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(ARCH)_$(LIBC)-$(LIBCV)
+  BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(ARCH)_gcc-$(GCCV)_$(LIBC)-$(LIBCV)
+  TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(ARCH)_gcc-$(GCCV)_$(LIBC)-$(LIBCV)
+  PACKAGE_DIR:=$(BIN_DIR)/packages/$(BOARD)_$(LIBC)-$(LIBCV)
+else
+  ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
+    GNU_TARGET_NAME=$(call qstrip,$(CONFIG_TARGET_NAME))
+  else
+    GNU_TARGET_NAME=$(shell gcc -dumpmachine)
+  endif
+  REAL_GNU_TARGET_NAME=$(GNU_TARGET_NAME)
+  BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
+  STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(GNU_TARGET_NAME)
+  BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(GNU_TARGET_NAME)
+  TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(GNU_TARGET_NAME)
+  PACKAGE_DIR:=$(BIN_DIR)/packages/$(BOARD)_$(GNU_TARGET_NAME)
+endif
 STAMP_DIR:=$(BUILD_DIR)/stamp
 STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
 TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
@@ -67,22 +83,40 @@ STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
 DEBUG_DIR:=$(BUILD_DIR)/debug-$(BOARD)
 BUILD_LOG_DIR:=$(TOPDIR)/logs
 
-TARGET_PATH:=$(TOOLCHAIN_DIR)/usr/bin:$(STAGING_DIR_HOST)/bin:$(PATH)
-TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(TARGET_PATH)
+TARGET_PATH:=$(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)/usr/lib -L$(TOOLCHAIN_DIR)/lib -L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
+TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
 LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a))
 
 ifndef DUMP
-ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
-  -include $(TOOLCHAIN_DIR)/info.mk
-  REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))
-  GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux
-  TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
-  TARGET_CFLAGS+= -fhonour-copts
-endif
+  ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
+    -include $(TOOLCHAIN_DIR)/info.mk
+    TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
+    TARGET_CFLAGS+= -fhonour-copts
+    TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include -I$(TOOLCHAIN_DIR)/include
+    TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib
+    TARGET_PATH:=$(TOOLCHAIN_DIR)/usr/bin:$(TARGET_PATH)
+  else
+    ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
+      TARGET_CROSS:=$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX))
+      TOOLCHAIN_ROOT_DIR:=$(call qstrip,$(CONFIG_TOOLCHAIN_ROOT))
+      TOOLCHAIN_BIN_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_BIN_PATH)))
+      TOOLCHAIN_INC_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))
+      TOOLCHAIN_LIB_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))
+      ifneq ($(TOOLCHAIN_BIN_DIRS),)
+        TARGET_PATH:=$(subst $(space),:,$(TOOLCHAIN_BIN_DIRS)):$(TARGET_PATH)
+      endif
+      ifneq ($(TOOLCHAIN_INC_DIRS),)
+        TARGET_CPPFLAGS+= $(patsubst %,-I%,$(TOOLCHAIN_INC_DIRS))
+      endif
+      ifneq ($(TOOLCHAIN_LIB_DIRS),)
+        TARGET_LDFLAGS+= $(patsubst %,-L%,$(TOOLCHAIN_LIB_DIRS))
+      endif
+    endif
+  endif
 endif
+TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(TARGET_PATH)
 
 ifeq ($(CONFIG_SOFT_FLOAT),y)
   SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft