[toolchain] provide a cleaner way to specify a biarch toolchain build

[openwrt.git] / toolchain / gcc / Makefile

diff --git a/toolchain/gcc/Makefile b/toolchain/gcc/Makefile
index 6d46f98..875c375 100644 (file)
--- a/toolchain/gcc/Makefile
+++ b/toolchain/gcc/Makefile
@@ -27,43 +27,44 @@ PATCH_DIR=./patches/$(PKG_VERSION)
 PKG_SOURCE_URL:=ftp://ftp.fu-berlin.de/unix/languages/gcc/releases/gcc-$(PKG_VERSION) \
        http://mirrors.rcn.net/pub/sourceware/gcc/releases/gcc-$(PKG_VERSION) \
        ftp://ftp.gnu.org/gnu/gcc/releases/gcc-$(PKG_VERSION)
-       
 PKG_SOURCE:=gcc-$(PKG_VERSION).tar.bz2
-PKG_MD5SUM:=unknown
-PKG_CAT:=bzcat
+STAGING_DIR_HOST:=$(TOOLCHAIN_DIR)
+BUILD_DIR_HOST:=$(BUILD_DIR_TOOLCHAIN)
 
-PKG_BUILD_DIR:=$(TOOLCHAIN_BUILD_DIR)/gcc-$(PKG_VERSION)
+include $(INCLUDE_DIR)/host-build.mk
 
-TARGET_LANGUAGES:=c
-ifeq ($(CONFIG_INSTALL_LIBSTDCPP),y)
-TARGET_LANGUAGES:=$(TARGET_LANGUAGES),c++
-endif
-ifeq ($(CONFIG_INSTALL_LIBGCJ),y)
-TARGET_LANGUAGES:=$(TARGET_LANGUAGES),java
-endif
+STAMP_BUILT:=$(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed
+BUILD_DIR1:=$(BUILD_DIR_HOST)/gcc-$(PKG_VERSION)-initial
+BUILD_DIR2:=$(BUILD_DIR_HOST)/gcc-$(PKG_VERSION)-final
 
-include $(INCLUDE_DIR)/host-build.mk
+SEP:=,
+TARGET_LANGUAGES:="c$(if $(CONFIG_INSTALL_LIBSTDCPP),$(SEP)c++)$(if $(CONFIG_INSTALL_LIBGCJ),$(SEP)java)"
 
-BUILD_DIR1:=$(TOOLCHAIN_BUILD_DIR)/gcc-$(PKG_VERSION)-initial
-BUILD_DIR2:=$(TOOLCHAIN_BUILD_DIR)/gcc-$(PKG_VERSION)-final
+EXTRA_TARGET=$(if $(CONFIG_EXTRA_TARGET_ARCH),--enable-biarch --enable-targets=$(call qstrip,$(CONFIG_EXTRA_TARGET_ARCH_NAME))-linux-uclibc)
 
 define Stage1/Configure
+       $(SED) 's,TARGET_CROSS=.*,TARGET_CROSS=$(REAL_GNU_TARGET_NAME)-,' $(TOOLCHAIN_DIR)/info.mk
+       $(SED) 's,GCC_VERSION=.*,GCC_VERSION=$(PKG_VERSION),' $(TOOLCHAIN_DIR)/info.mk
        mkdir -p $(BUILD_DIR1)
        (cd $(BUILD_DIR1); rm -f config.cache; \
                SHELL="$(BASH)" \
                $(PKG_BUILD_DIR)/configure \
-               --prefix=$(STAGING_DIR) \
+               --prefix=$(TOOLCHAIN_DIR) \
                --build=$(GNU_HOST_NAME) \
                --host=$(GNU_HOST_NAME) \
                --target=$(REAL_GNU_TARGET_NAME) \
                --enable-languages=c \
                --disable-shared \
-               --with-sysroot=$(TOOLCHAIN_BUILD_DIR)/uClibc_dev/ \
+               --with-sysroot=$(BUILD_DIR_HOST)/uClibc_dev/ \
                --disable-__cxa_atexit \
                --enable-target-optspace \
                --with-gnu-ld \
                --disable-nls \
                --disable-libmudflap \
+               --disable-multilib \
+               $(EXTRA_TARGET) \
+               $(SOFT_FLOAT_CONFIG_OPTION) \
+               $(call qstrip,$(CONFIG_EXTRA_GCC_CONFIG_OPTIONS)) \
        );
 endef
 define Stage1/Compile
@@ -76,14 +77,14 @@ endef
 define Stage2/Configure
        mkdir -p $(BUILD_DIR2)
        # Important!  Required for limits.h to be fixed.
-       rm -rf $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/sys-include
-       ln -sf ../include $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/sys-include
-       rm -rf $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/lib
-       ln -sf ../lib $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/lib
+       rm -rf $(TOOLCHAIN_DIR)/$(REAL_GNU_TARGET_NAME)/sys-include
+       ln -sf ../include $(TOOLCHAIN_DIR)/$(REAL_GNU_TARGET_NAME)/sys-include
+       rm -rf $(TOOLCHAIN_DIR)/$(REAL_GNU_TARGET_NAME)/lib
+       ln -sf ../lib $(TOOLCHAIN_DIR)/$(REAL_GNU_TARGET_NAME)/lib
        (cd $(BUILD_DIR2); rm -f config.cache; \
                SHELL="$(BASH)" \
                $(PKG_BUILD_DIR)/configure \
-               --prefix=$(STAGING_DIR) \
+               --prefix=$(TOOLCHAIN_DIR) \
                --build=$(GNU_HOST_NAME) \
                --host=$(GNU_HOST_NAME) \
                --target=$(REAL_GNU_TARGET_NAME) \
@@ -94,17 +95,37 @@ define Stage2/Configure
                --with-gnu-ld \
                --disable-nls \
                --disable-libmudflap \
+               --disable-multilib \
+               $(EXTRA_TARGET) \
+               $(SOFT_FLOAT_CONFIG_OPTION) \
+               $(call qstrip,$(CONFIG_EXTRA_GCC_CONFIG_OPTIONS)) \
        );
 endef
+
 define Stage2/Compile
-       export SHELL="$(BASH)"; $(MAKE) -C $(BUILD_DIR2) all
+       export SHELL="\$(BASH)"; \$(MAKE) -C \$(BUILD_DIR2) all
 endef
+
+define SetupExtraArch
+       for app in $(TOOLCHAIN_DIR)/bin/$(OPTIMIZE_FOR_CPU)*-{gcc,gcc-*,g++}; do \
+               [ -e $$$$app ] || continue; \
+               old_base=$$$$(basename $$$$app); \
+               new_base=$(call qstrip,$(CONFIG_EXTRA_TARGET_ARCH_NAME))-$$$${old_base##$(OPTIMIZE_FOR_CPU)-}; \
+               sed -e "s/@CC_BASE@/$$$$old_base/" \
+                       -e 's/@EXTRA_ARCH_OPTS@/$(call qstrip,$(CONFIG_EXTRA_TARGET_ARCH_OPTS))/' \
+                        ./files/alternate-arch-cc.in > \
+                        $(TOOLCHAIN_DIR)/bin/$$$$new_base; \
+               chmod a+x $(TOOLCHAIN_DIR)/bin/$$$$new_base; \
+       done
+endef
+
 define Stage2/Install
-       export SHELL="$(BASH)"; $(MAKE) -C $(BUILD_DIR2) install
-       echo $(PKG_VERSION) > $(STAGING_DIR)/gcc_version
+       $(MAKE) -C $(BUILD_DIR2) \
+               SHELL="$(BASH)" \
+               install
        # Set up the symlinks to enable lying about target name.
        set -e; \
-       (cd $(STAGING_DIR); \
+       (cd $(TOOLCHAIN_DIR); \
                ln -sf $(REAL_GNU_TARGET_NAME) $(GNU_TARGET_NAME); \
                cd bin; \
                for app in $(REAL_GNU_TARGET_NAME)-* ; do \
@@ -112,6 +133,7 @@ define Stage2/Install
                        $(GNU_TARGET_NAME)$$$${app##$(REAL_GNU_TARGET_NAME)}; \
                done; \
        );
+       $(if $(CONFIG_EXTRA_TARGET_ARCH),$(call SetupExtraArch))
 endef
 
 define Build/Prepare
@@ -128,7 +150,7 @@ endef
 
 define Build/Compile
        $(call Stage1/Compile)
-       $(call Stage1/Install)
+       $(if $(wildcard $(TOOLCHAIN_DIR)/bin/$(GNU_TARGET_NAME)-gcc),,$(call Stage1/Install))
 endef
 
 define Build/Install
@@ -138,11 +160,13 @@ define Build/Install
 endef
 
 define Build/Clean
-       rm -rf $(PKG_BUILD_DIR)
-       rm -rf $(BUILD_DIR1)
-       rm -rf $(BUILD_DIR2)
-       rm -f $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gc*
-       rm -f $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-c*
+       rm -rf \
+               $(PKG_BUILD_DIR) \
+               $(BUILD_DIR1) \
+               $(BUILD_DIR2) \
+               $(TOOLCHAIN_DIR)/$(REAL_GNU_TARGET_NAME) \
+               $(TOOLCHAIN_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gc* \
+               $(TOOLCHAIN_DIR)/bin/$(REAL_GNU_TARGET_NAME)-c*
 endef
 
 $(eval $(call HostBuild))