+# 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 Felix Fietkau <openwrt@nbd.name>
+#
+# 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 $(TOPDIR)/rules.mk
-include ./gcc-uclibc-3.x.mk
+GCC_VERSION:=$(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<URL:https://dev.openwrt.org/>\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, assuming GCC 4.x ; \
+ $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gcc -dumpspecs > $(STAGING_DIR)/lib/gcc/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION)/specs; \
+ 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: gcc-source
-prepare: gcc_initial
-compile: $(GCC_BUILD_DIR2)/.compiled
-install: gcc-install
-clean: gcc_initial-clean gcc-clean
+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*
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