# Makefile for to build a gcc/uClibc toolchain # # Copyright (C) 2002-2003 Erik Andersen # Copyright (C) 2004 Manuel Novoa III # Copyright (C) 2005 Felix Fietkau # # 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 # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA include $(TOPDIR)/rules.mk GCC_VERSION:=$(strip $(GCC_VERSION)) #GCC_SITE:=ftp://ftp.gnu.org/gnu/gcc/releases/gcc-$(GCC_VERSION) GCC_SITE:=ftp://ftp.fu-berlin.de/unix/languages/gcc/releases/gcc-$(GCC_VERSION) \ http://mirrors.rcn.net/pub/sourceware/gcc/releases/gcc-$(GCC_VERSION) GCC_SOURCE:=gcc-$(GCC_VERSION).tar.bz2 GCC_DIR:=$(TOOL_BUILD_DIR)/gcc-$(GCC_VERSION) GCC_CAT:=bzcat GCC_STRIP_HOST_BINARIES:=true ############################################################# # # Setup some initial stuff # ############################################################# ifeq ($(BR2_INSTALL_LIBGCJ),y) TARGET_LANGUAGES:=c,c++,java else ifeq ($(BR2_INSTALL_LIBSTDCPP),y) TARGET_LANGUAGES:=c,c++ else TARGET_LANGUAGES:=c endif endif ############################################################# # # build the first pass gcc compiler # ############################################################# GCC_BUILD_DIR1:=$(TOOL_BUILD_DIR)/gcc-$(GCC_VERSION)-initial $(DL_DIR)/$(GCC_SOURCE): mkdir -p $(DL_DIR) $(SCRIPT_DIR)/download.pl $(DL_DIR) $(GCC_SOURCE) x $(GCC_SITE) $(GCC_DIR)/.unpacked: $(DL_DIR)/$(GCC_SOURCE) mkdir -p $(TOOL_BUILD_DIR) $(GCC_CAT) $(DL_DIR)/$(GCC_SOURCE) | tar -C $(TOOL_BUILD_DIR) $(TAR_OPTIONS) - touch $(GCC_DIR)/.unpacked $(GCC_DIR)/.patched: $(GCC_DIR)/.unpacked # Apply any files named gcc-*.patch from the source directory to gcc $(SCRIPT_DIR)/patch-kernel.sh $(GCC_DIR) ./$(GCC_VERSION) \*.patch # Note: The soft float situation has improved considerably with gcc 3.4.x. # We can dispense with the custom spec files, as well as libfloat for the arm case. # However, we still need a patch for arm. There's a similar patch for gcc 3.3.x # which needs to be integrated so we can kill of libfloat for good. ifeq ($(BR2_SOFT_FLOAT),y) ifeq ("$(strip $(ARCH))","arm") $(SCRIPT_DIR)/patch-kernel.sh $(GCC_DIR) ./$(GCC_VERSION) arm-softfloat.patch.conditional endif ifeq ("$(strip $(ARCH))","armeb") $(SCRIPT_DIR)/patch-kernel.sh $(GCC_DIR) ./$(GCC_VERSION) arm-softfloat.patch.conditional endif endif $(SED) 's,\(version_string.. = "[0-9\.]*\).*\(";\),\1 (OpenWrt-2.0)\2,' $(GCC_DIR)/gcc/version.c $(SED) 's,\(bug_report_url.. = "\).*\(";\),\1\2,' $(GCC_DIR)/gcc/version.c touch $(GCC_DIR)/.patched # The --without-headers option stopped working with gcc 3.0 and has never been # # fixed, so we need to actually have working C library header files prior to # # the step or libgcc will not build... $(GCC_BUILD_DIR1)/.configured: $(GCC_DIR)/.patched mkdir -p $(GCC_BUILD_DIR1) (cd $(GCC_BUILD_DIR1); rm -f config.cache; PATH=$(TARGET_PATH) \ $(GCC_DIR)/configure \ --prefix=$(STAGING_DIR) \ --build=$(GNU_HOST_NAME) \ --host=$(GNU_HOST_NAME) \ --target=$(REAL_GNU_TARGET_NAME) \ --enable-languages=c \ --disable-shared \ --with-sysroot=$(TOOL_BUILD_DIR)/uClibc_dev/ \ --disable-__cxa_atexit \ --enable-target-optspace \ --with-gnu-ld \ $(DISABLE_NLS) \ $(MULTILIB) \ $(SOFT_FLOAT_CONFIG_OPTION) \ $(GCC_WITH_CPU) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) \ $(EXTRA_GCC_CONFIG_OPTIONS)); touch $(GCC_BUILD_DIR1)/.configured $(GCC_BUILD_DIR1)/.compiled: $(GCC_BUILD_DIR1)/.configured PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR1) all-gcc touch $(GCC_BUILD_DIR1)/.compiled $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gcc: $(GCC_BUILD_DIR1)/.compiled PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR1) install-gcc ############################################################# # # second pass compiler build. Build the compiler targeting # the newly built shared uClibc library. # ############################################################# # # Sigh... I had to rework things because using --with-gxx-include-dir # causes issues with include dir search order for g++. This seems to # have something to do with "path translations" and possibly doesn't # affect gcc-target. However, I haven't tested gcc-target yet so no # guarantees. mjn3 GCC_BUILD_DIR2:=$(TOOL_BUILD_DIR)/gcc-$(GCC_VERSION)-final $(GCC_BUILD_DIR2)/.configured: $(GCC_DIR)/.patched $(STAGING_DIR)/lib/libc.a mkdir -p $(GCC_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 (cd $(GCC_BUILD_DIR2); rm -f config.cache; PATH=$(TARGET_PATH) \ $(GCC_DIR)/configure \ --prefix=$(STAGING_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) \ $(MULTILIB) \ $(SOFT_FLOAT_CONFIG_OPTION) \ $(GCC_WITH_CPU) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) \ $(GCC_USE_SJLJ_EXCEPTIONS) \ $(EXTRA_GCC_CONFIG_OPTIONS)); touch $(GCC_BUILD_DIR2)/.configured $(GCC_BUILD_DIR2)/.compiled: $(GCC_BUILD_DIR2)/.configured PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR2) all touch $(GCC_BUILD_DIR2)/.compiled gcc-install: $(GCC_BUILD_DIR2)/.compiled PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR2) install echo $(GCC_VERSION) > $(STAGING_DIR)/gcc_version # Set up the symlinks to enable lying about target name. set -e; \ (cd $(STAGING_DIR); \ ln -sf $(REAL_GNU_TARGET_NAME) $(GNU_TARGET_NAME); \ cd bin; \ for app in $(REAL_GNU_TARGET_NAME)-* ; do \ ln -sf $${app} \ $(GNU_TARGET_NAME)$${app##$(REAL_GNU_TARGET_NAME)}; \ done; \ ); # # Now for the ugly 3.3.x soft float hack... # ifeq ($(BR2_SOFT_FLOAT),y) ifeq ($(findstring 3.3.,$(GCC_VERSION)),3.3.) # Make sure we have a soft float specs file for this arch if [ ! -f ./$(GCC_VERSION)/specs-$(ARCH)-soft-float ] ; then \ echo soft float configured but no specs file for this arch ; \ /bin/false ; \ fi; # Replace specs file with one that defaults to soft float mode. if [ ! -f $(STAGING_DIR)/lib/gcc-lib/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION)/specs ] ; then \ echo staging dir specs file is missing ; \ /bin/false ; \ fi; cp ./$(GCC_VERSION)/specs-$(ARCH)-soft-float $(STAGING_DIR)/lib/gcc-lib/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION)/specs endif endif # We do another ugly hack here because the standard behaviour is # to include a reference to libgcc.so.1 in all binaries. For flash space # saving, we change the specs file to link in a static libgcc here. if [ ! -f $(STAGING_DIR)/lib/gcc/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION)/specs ] ; then \ echo staging dir specs file is missing ; \ /bin/false ; \ fi; if grep -q as-needed $(STAGING_DIR)/lib/gcc/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION)/specs; then \ patch -d $(STAGING_DIR)/lib/gcc/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION)/ -p0 < ./$(GCC_VERSION)/static-libgcc.patch.conditional ; \ fi; source: $(DL_DIR)/$(GCC_SOURCE) prepare: $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gcc compile: gcc-install install: clean: gcc-clean rm -rf $(GCC_DIR) rm -rf $(GCC_BUILD_DIR1) rm -rf $(GCC_BUILD_DIR2) rm -f $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gc* rm -f $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-c*