[massive] add support for alternative C libraries (currently only glibc/eglibc)
[openwrt-10.03/.git] / toolchain / gcc / Makefile
index 9b3a34a0b5037de480b1518b9c113f5066624b42..5e8bb9abb36b55cb827e6e87a1c31852bd167760 100644 (file)
@@ -1,8 +1,8 @@
-# Makefile for to build a gcc/uClibc toolchain
 #
 # Copyright (C) 2002-2003 Erik Andersen <andersen@uclibc.org>
 # Copyright (C) 2004 Manuel Novoa III <mjn3@uclibc.org>
 # Copyright (C) 2005-2006 Felix Fietkau <nbd@openwrt.org>
+# Copyright (C) 2006-2008 OpenWrt.org
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -40,111 +40,163 @@ PATCH_DIR=./patches/$(PKG_VERSION)
 
 STAGING_DIR_HOST:=$(TOOLCHAIN_DIR)
 BUILD_DIR_HOST:=$(BUILD_DIR_TOOLCHAIN)
+
 override CONFIG_AUTOREBUILD=
 
 include $(INCLUDE_DIR)/host-build.mk
 
 STAMP_BUILT:=$(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed
-BUILD_DIR1:=$(BUILD_DIR_HOST)/gcc-$(PKG_VERSION)-initial
-BUILD_DIR2:=$(BUILD_DIR_HOST)/gcc-$(PKG_VERSION)-final
+
+PKG_BUILD_DIR0:=$(PKG_BUILD_DIR)-minimal
+PKG_BUILD_DIR1:=$(PKG_BUILD_DIR)-initial
+PKG_BUILD_DIR2:=$(PKG_BUILD_DIR)-final
 
 SEP:=,
 TARGET_LANGUAGES:="c$(if $(CONFIG_INSTALL_LIBSTDCPP),$(SEP)c++)$(if $(CONFIG_INSTALL_LIBGCJ),$(SEP)java)"
 
-ifeq ($(CONFIG_SSP_SUPPORT),y)
-  SSP:=--enable-libssp
-else
-  SSP:=--disable-libssp
-endif
-
-EXTRA_TARGET=$(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)" \
-               $(PKG_BUILD_DIR)/configure \
-               --prefix=$(TOOLCHAIN_DIR) \
+GCC_CONFIGURE_COMMON:= \
+       SHELL="$(BASH)" \
+       $(PKG_BUILD_DIR)/configure \
+               --prefix=$(TOOLCHAIN_DIR)/usr \
                --build=$(GNU_HOST_NAME) \
                --host=$(GNU_HOST_NAME) \
                --target=$(REAL_GNU_TARGET_NAME) \
-               --enable-languages=c \
-               --disable-shared \
-               --with-sysroot=$(BUILD_DIR_HOST)/uClibc_dev/ \
-               --disable-__cxa_atexit \
-               --enable-target-optspace \
                --with-gnu-ld \
-               --disable-nls \
+               --enable-target-optspace \
                --disable-libmudflap \
                --disable-multilib \
-               $(SSP) \
-               $(EXTRA_TARGET) \
+               --disable-nls \
                $(SOFT_FLOAT_CONFIG_OPTION) \
                $(call qstrip,$(CONFIG_EXTRA_GCC_CONFIG_OPTIONS)) \
+
+ifneq ($(CONFIG_SSP_SUPPORT),)
+       GCC_CONFIGURE_COMMON+= \
+               --enable-libssp
+else
+       GCC_CONFIGURE_COMMON+= \
+               --disable-libssp
+endif
+
+ifneq ($(CONFIG_EXTRA_TARGET_ARCH),)
+       GCC_CONFIGURE_COMMON+= \
+               --enable-biarch \
+               --enable-targets=$(call qstrip,$(CONFIG_EXTRA_TARGET_ARCH_NAME))-linux-$(TARGET_SUFFIX)
+endif
+
+ifeq ($(LIBC),uClibc)
+       GCC_CONFIGURE_COMMON+= \
+               --disable-__cxa_atexit
+else
+       GCC_CONFIGURE_COMMON+= \
+               --enable-__cxa_atexit
+endif
+
+GCC_CONFIGURE_STAGE0:= \
+       $(GCC_CONFIGURE_COMMON) \
+               --with-newlib \
+               --without-headers \
+               --enable-languages=c \
+               --disable-libgomp \
+               --disable-libssp \
+               --disable-shared \
+               --disable-threads \
+
+GCC_CONFIGURE_STAGE1:= \
+       $(GCC_CONFIGURE_COMMON) \
+               --with-newlib \
+               --with-sysroot=$(BUILD_DIR_TOOLCHAIN)/$(LIBC)-dev \
+               --enable-languages=c \
+               --disable-shared \
+               --disable-threads \
+
+GCC_CONFIGURE_STAGE2:= \
+       $(GCC_CONFIGURE_COMMON) \
+               --enable-languages=$(TARGET_LANGUAGES) \
+               --enable-shared \
+               --enable-threads \
+               --with-slibdir=$(TOOLCHAIN_DIR)/lib \
+
+GCC_MAKE:= \
+       export SHELL="$(BASH)"; \
+       $(MAKE) \
+
+
+define Build/SetToolchainInfo
+       $(SED) 's,TARGET_CROSS=.*,TARGET_CROSS=$(REAL_GNU_TARGET_NAME)-,' $(TOOLCHAIN_DIR)/info.mk
+       $(SED) 's,GCC_VERSION=.*,GCC_VERSION=$(PKG_VERSION),' $(TOOLCHAIN_DIR)/info.mk
+endef
+
+
+define Stage0/Configure
+       mkdir -p $(PKG_BUILD_DIR0)
+       (cd $(PKG_BUILD_DIR0); rm -f config.cache; \
+               $(GCC_CONFIGURE_STAGE0) \
        );
 endef
+
+define Stage0/Compile
+       $(GCC_MAKE) -C $(PKG_BUILD_DIR0) all-gcc
+endef
+
+define Stage0/Install
+       $(GCC_MAKE) -C $(PKG_BUILD_DIR0) install-gcc
+endef
+
+
+define Stage1/Configure
+       mkdir -p $(PKG_BUILD_DIR1)
+       (cd $(PKG_BUILD_DIR1); rm -f config.cache; \
+               $(GCC_CONFIGURE_STAGE1) \
+       );
+endef
+
 define Stage1/Compile
-       export SHELL="$(BASH)"; $(MAKE) -C $(BUILD_DIR1) all-gcc
+       $(GCC_MAKE) -C $(PKG_BUILD_DIR1) all-build-libiberty all-gcc
 endef
+
 define Stage1/Install
-       export SHELL="$(BASH)"; $(MAKE) -C $(BUILD_DIR1) install-gcc
+       $(GCC_MAKE) -C $(PKG_BUILD_DIR1) install-gcc
+       # XXX: glibc insists on linking against libgcc_eh
+       ( cd $(TOOLCHAIN_DIR)/usr/lib/gcc/$(REAL_GNU_TARGET_NAME)/$(PKG_VERSION) ; \
+               [ -e libgcc_eh.a ] || ln -sf libgcc.a libgcc_eh.a ; \
+       )
 endef
 
+
 define Stage2/Configure
-       mkdir -p $(BUILD_DIR2) $(TOOLCHAIN_DIR)/$(REAL_GNU_TARGET_NAME)
+       mkdir -p $(PKG_BUILD_DIR2) $(TOOLCHAIN_DIR)/usr/$(REAL_GNU_TARGET_NAME)
        # Important!  Required for limits.h to be fixed.
-       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)" \
-               $(PKG_BUILD_DIR)/configure \
-               --prefix=$(TOOLCHAIN_DIR) \
-               --build=$(GNU_HOST_NAME) \
-               --host=$(GNU_HOST_NAME) \
-               --target=$(REAL_GNU_TARGET_NAME) \
-               --enable-languages=$(TARGET_LANGUAGES) \
-               --enable-shared \
-               --disable-__cxa_atexit \
-               --enable-target-optspace \
-               --with-gnu-ld \
-               --disable-nls \
-               --disable-libmudflap \
-               --disable-multilib \
-               $(SSP) \
-               $(EXTRA_TARGET) \
-               $(SOFT_FLOAT_CONFIG_OPTION) \
-               $(call qstrip,$(CONFIG_EXTRA_GCC_CONFIG_OPTIONS)) \
+       rm -rf $(TOOLCHAIN_DIR)/usr/$(REAL_GNU_TARGET_NAME)/sys-include
+       ln -sf ../include $(TOOLCHAIN_DIR)/usr/$(REAL_GNU_TARGET_NAME)/sys-include
+       rm -rf $(TOOLCHAIN_DIR)/usr/$(REAL_GNU_TARGET_NAME)/lib
+       ln -sf ../lib $(TOOLCHAIN_DIR)/usr/$(REAL_GNU_TARGET_NAME)/lib
+       (cd $(PKG_BUILD_DIR2); rm -f config.cache; \
+               $(GCC_CONFIGURE_STAGE2) \
        );
 endef
 
 define Stage2/Compile
-       export SHELL="\$(BASH)"; \$(MAKE) -C \$(BUILD_DIR2) all
+       $(GCC_MAKE) -C $(PKG_BUILD_DIR2) all
 endef
 
 define SetupExtraArch
-       for app in $(TOOLCHAIN_DIR)/bin/$(OPTIMIZE_FOR_CPU)*-{gcc,gcc-*,g++}; do \
+       for app in $(TOOLCHAIN_DIR)/usr/bin/$(OPTIMIZE_FOR_CPU)*-{gcc,gcc-*,g++}; do \
                [ -e $$$$app ] || continue; \
                old_base=$$$$(basename $$$$app); \
                new_base=$(call qstrip,$(CONFIG_EXTRA_TARGET_ARCH_NAME))-$$$${old_base##$(OPTIMIZE_FOR_CPU)-}; \
                sed -e "s/@CC_BASE@/$$$$old_base/" \
                        -e 's/@EXTRA_ARCH_OPTS@/$(call qstrip,$(CONFIG_EXTRA_TARGET_ARCH_OPTS))/' \
                         ./files/alternate-arch-cc.in > \
-                        $(TOOLCHAIN_DIR)/bin/$$$$new_base; \
-               chmod a+x $(TOOLCHAIN_DIR)/bin/$$$$new_base; \
+                        $(TOOLCHAIN_DIR)/usr/bin/$$$$new_base; \
+               chmod a+x $(TOOLCHAIN_DIR)/usr/bin/$$$$new_base; \
        done
 endef
 
 define Stage2/Install
-       $(MAKE) -C $(BUILD_DIR2) \
-               SHELL="$(BASH)" \
-               install
+       $(GCC_MAKE) -C $(PKG_BUILD_DIR2) install
        # Set up the symlinks to enable lying about target name.
        set -e; \
-       (cd $(TOOLCHAIN_DIR); \
+       (cd $(TOOLCHAIN_DIR)/usr; \
                ln -sf $(REAL_GNU_TARGET_NAME) $(GNU_TARGET_NAME); \
                cd bin; \
                for app in $(REAL_GNU_TARGET_NAME)-* ; do \
@@ -155,21 +207,28 @@ define Stage2/Install
        $(if $(CONFIG_EXTRA_TARGET_ARCH),$(call SetupExtraArch))
 endef
 
+
 define Build/Prepare
+       $(call Build/SetToolchainInfo)
        $(call Build/Prepare/Default)
+       ln -snf $(PKG_NAME)-$(PKG_VERSION) $(BUILD_DIR_TOOLCHAIN)/$(PKG_NAME)
+       $(CP) $(SCRIPT_DIR)/config.{guess,sub} $(PKG_BUILD_DIR)/
        $(SED) 's,\(version_string.. = "[0-9\.]*\).*\(";\),\1 (OpenWrt-2.0)\2,' $(PKG_BUILD_DIR)/gcc/version.c
        $(SED) 's,\(bug_report_url.. = "\).*\(";\),\1<URL:https://dev.openwrt.org/>\2,' $(PKG_BUILD_DIR)/gcc/version.c
        (cd $(PKG_BUILD_DIR)/libstdc++-v3; autoconf;);
        $(SED) 's,gcc_no_link=yes,gcc_no_link=no,' $(PKG_BUILD_DIR)/libstdc++-v3/configure
+       $(call Stage0/Configure)
+       $(call Stage0/Compile)
+       $(call Stage0/Install)
 endef
 
 define Build/Configure
-       $(call Stage1/Configure)
 endef
 
 define Build/Compile
+       $(call Stage1/Configure)
        $(call Stage1/Compile)
-       $(if $(wildcard $(TOOLCHAIN_DIR)/bin/$(GNU_TARGET_NAME)-gcc),,$(call Stage1/Install))
+       $(call Stage1/Install)
 endef
 
 define Build/Install
@@ -181,11 +240,13 @@ endef
 define Build/Clean
        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*
+               $(PKG_BUILD_DIR0) \
+               $(PKG_BUILD_DIR1) \
+               $(PKG_BUILD_DIR2) \
+               $(BUILD_DIR_TOOLCHAIN)/$(PKG_NAME) \
+               $(TOOLCHAIN_DIR)/usr/$(REAL_GNU_TARGET_NAME) \
+               $(TOOLCHAIN_DIR)/usr/bin/$(REAL_GNU_TARGET_NAME)-gc* \
+               $(TOOLCHAIN_DIR)/usr/bin/$(REAL_GNU_TARGET_NAME)-c*
 endef
 
 $(eval $(call HostBuild))