From 68671dcc616747d5d8350c9a32286691e6101cb2 Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Wed, 19 Feb 2003 10:41:54 +0000
Subject: [PATCH] Fixup gcc_target so it works for people that don't wish to
 build a gcc toolchain to bootstrap the system and instead want to use
 uClibc's gcc wrapper.

---
 make/gcc_target.mk | 111 +++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 101 insertions(+), 10 deletions(-)

diff --git a/make/gcc_target.mk b/make/gcc_target.mk
index 06e61c0149..2e60b81f7c 100644
--- a/make/gcc_target.mk
+++ b/make/gcc_target.mk
@@ -27,6 +27,20 @@ TARGET_LANGUAGES:=c,c++
 # If you want multilib enabled, enable this...
 MULTILIB:=--enable-multilib
 
+ifeq ($(USE_UCLIBC_TOOLCHAIN),true)
+GCC_DEPENDANCY=gcc_final
+GCC_INSTALL_TARGET=install-gcc
+else
+BINUTILS_SITE:=ftp://ftp.gnu.org/gnu/binutils/
+BINUTILS_SOURCE:=binutils-2.13.2.1.tar.bz2
+BINUTILS_DIR:=$(TOOL_BUILD_DIR)/binutils-2.13.2.1
+
+GCC_SITE:=ftp://ftp.gnu.org/gnu/gcc/
+GCC_SOURCE:=gcc-3.2.2.tar.gz
+GCC_DIR:=$(TOOL_BUILD_DIR)/gcc-3.2.2
+GCC_INSTALL_TARGET=install
+endif
+
 #############################################################
 #
 # Where we can find things....
@@ -44,7 +58,32 @@ GCC_BUILD_DIR3:=$(BUILD_DIR)/gcc-target
 # build binutils
 #
 #############################################################
-$(BINUTILS_DIR2)/.configured:
+ifneq ($(USE_UCLIBC_TOOLCHAIN),true)
+$(DL_DIR)/$(BINUTILS_SOURCE):
+	$(WGET) -P $(DL_DIR) $(BINUTILS_SITE)/$(BINUTILS_SOURCE)
+
+$(BINUTILS_DIR)/.unpacked: $(DL_DIR)/$(BINUTILS_SOURCE)
+	bzcat $(DL_DIR)/$(BINUTILS_SOURCE) | tar -C $(TOOL_BUILD_DIR) -xvf -
+	touch $(BINUTILS_DIR)/.unpacked
+
+$(BINUTILS_DIR)/.patched: $(BINUTILS_DIR)/.unpacked
+	# Apply any files named binutils-*.patch from the source directory to binutils
+	$(SOURCE_DIR)/patch-kernel.sh $(BINUTILS_DIR) $(SOURCE_DIR) binutils-*.patch
+	#
+	# Enable combreloc, since it is such a nice thing to have...
+	#
+	-perl -i -p -e "s,link_info.combreloc = false,link_info.combreloc = true,g;" \
+		$(BINUTILS_DIR)/ld/ldmain.c
+	#
+	# Hack binutils to use the correct shared lib loader
+	#
+	(cd $(BINUTILS_DIR); perl -i -p -e "s,#.*define.*ELF_DYNAMIC_INTERPRETER.*\".*\"\
+		,#define ELF_DYNAMIC_INTERPRETER \"/lib/ld-uClibc.so.0\",;" \
+		`grep -lr "#.*define.*ELF_DYNAMIC_INTERPRETER.*\".*\"" $(BINUTILS_DIR)`);
+	touch $(BINUTILS_DIR)/.patched
+endif
+
+$(BINUTILS_DIR2)/.configured: $(BINUTILS_DIR)/.patched
 	mkdir -p $(BINUTILS_DIR2)
 	mkdir -p $(TARGET_DIR)/usr/include
 	mkdir -p $(TARGET_DIR)/usr/$(GNU_TARGET_NAME)/
@@ -119,7 +158,7 @@ $(TARGET_DIR)/usr/lib/libg.a:
 	cp -a $(BINUTILS_DIR2)/opcodes/.libs/* $(TARGET_DIR)/usr/lib/
 	cp -a $(BINUTILS_DIR2)/libiberty/libiberty.a $(TARGET_DIR)/usr/lib/
 
-binutils_target: gcc_final $(TARGET_DIR)/usr/bin/ld $(TARGET_DIR)/usr/lib/libg.a
+binutils_target: $(GCC_DEPENDANCY) $(TARGET_DIR)/usr/bin/ld $(TARGET_DIR)/usr/lib/libg.a
 
 binutils_target-clean:
 	rm -f $(TARGET_DIR)/bin/$(GNU_TARGET_NAME)*
@@ -154,7 +193,7 @@ $(TARGET_DIR)/usr/lib/libc.a: $(STAGING_DIR)/lib/libc.a
 		ln -fs /lib/libnsl.so.0 libnsl.so; \
 	)
 
-uclibc_target: gcc_final $(TARGET_DIR)/usr/lib/libc.a
+uclibc_target: $(GCC_DEPENDANCY) $(TARGET_DIR)/usr/lib/libc.a
 
 uclibc_target-clean:
 	rm -f $(TARGET_DIR)/include
@@ -169,7 +208,59 @@ uclibc_target-dirclean:
 # Next build target gcc compiler
 #
 #############################################################
-$(GCC_BUILD_DIR3)/.gcc_build_hacks:
+ifneq ($(USE_UCLIBC_TOOLCHAIN),true)
+$(DL_DIR)/$(GCC_SOURCE):
+	$(WGET) -P $(DL_DIR) $(GCC_SITE)/$(GCC_SOURCE)
+
+$(GCC_DIR)/.unpacked: $(DL_DIR)/$(GCC_SOURCE)
+	zcat $(DL_DIR)/$(GCC_SOURCE) | tar -C $(TOOL_BUILD_DIR) -xvf -
+	touch $(GCC_DIR)/.unpacked
+
+$(GCC_DIR)/.patched: $(GCC_DIR)/.unpacked
+	# Apply any files named gcc-*.patch from the source directory to gcc
+	$(SOURCE_DIR)/patch-kernel.sh $(GCC_DIR) $(SOURCE_DIR) gcc-*.patch
+	touch $(GCC_DIR)/.patched
+
+$(GCC_DIR)/.gcc_build_hacks: $(GCC_DIR)/.patched
+	#
+	# Hack things to use the correct shared lib loader
+	#
+	(cd $(GCC_DIR); set -e; export LIST=`grep -lr -- "-dynamic-linker.*\.so[\.0-9]*" *`;\
+		if [ -n "$$LIST" ] ; then \
+		perl -i -p -e "s,-dynamic-linker.*\.so[\.0-9]*},\
+		    -dynamic-linker /lib/ld-uClibc.so.0},;" $$LIST; fi);
+	#
+	# Prevent gcc from using the unwind-dw2-fde-glibc code
+	#
+	perl -i -p -e "s,^#ifndef inhibit_libc,#define inhibit_libc\n\
+		#ifndef inhibit_libc,g;" $(GCC_DIR)/gcc/unwind-dw2-fde-glibc.c;
+	touch $(GCC_DIR)/.gcc_build_hacks
+
+$(GCC_DIR)/.g++_build_hacks: $(GCC_DIR)/.gcc_build_hacks
+	#
+	# Hack up the soname for libstdc++
+	# 
+	perl -i -p -e "s,\.so\.1,.so.0.9.9,g;" $(GCC_DIR)/gcc/config/t-slibgcc-elf-ver;
+	perl -i -p -e "s,-version-info.*[0-9]:[0-9]:[0-9],-version-info 9:9:0,g;" \
+		$(GCC_DIR)/libstdc++-v3/src/Makefile.am $(GCC_DIR)/libstdc++-v3/src/Makefile.in;
+	perl -i -p -e "s,3\.0\.0,9.9.0,g;" $(GCC_DIR)/libstdc++-v3/acinclude.m4 \
+		$(GCC_DIR)/libstdc++-v3/aclocal.m4 $(GCC_DIR)/libstdc++-v3/configure;
+	#
+	# For now, we don't support locale-ified ctype (we will soon), 
+	# so bypass that problem for now...
+	#
+	perl -i -p -e "s,defined.*_GLIBCPP_USE_C99.*,1,g;" \
+		$(GCC_DIR)/libstdc++-v3/config/locale/generic/c_locale.cc;
+	cp $(GCC_DIR)/libstdc++-v3/config/os/generic/bits/ctype_base.h \
+		$(GCC_DIR)/libstdc++-v3/config/os/gnu-linux/bits/
+	cp $(GCC_DIR)/libstdc++-v3/config/os/generic/bits/ctype_inline.h \
+		$(GCC_DIR)/libstdc++-v3/config/os/gnu-linux/bits/
+	cp $(GCC_DIR)/libstdc++-v3/config/os/generic/bits/ctype_noninline.h \
+		$(GCC_DIR)/libstdc++-v3/config/os/gnu-linux/bits/
+	touch $(GCC_DIR)/.g++_build_hacks
+endif
+
+$(GCC_BUILD_DIR3)/.gcc_build_hacks: $(GCC_DIR)/.g++_build_hacks
 	#
 	# Make certain the uClibc start files are found
 	#
@@ -268,7 +359,7 @@ $(TARGET_DIR)/usr/bin/gcc: $(GCC_BUILD_DIR3)/.compiled
 	    gxx_include_dir=$(TARGET_DIR)/usr/include/c++ \
 	    tooldir=$(TARGET_DIR)/usr/$(GNU_TARGET_NAME) \
 	    build_tooldir=$(TARGET_DIR)/usr/$(GNU_TARGET_NAME) \
-	    -C $(GCC_BUILD_DIR3) install-gcc;
+	    -C $(GCC_BUILD_DIR3) $(GCC_INSTALL_TARGET);
 	(cd $(TARGET_DIR)/usr/bin; ln -fs gcc cc)
 	(cd $(TARGET_DIR)/lib; ln -fs /usr/bin/cpp)
 	rm -rf $(TARGET_DIR)/usr/$(GNU_TARGET_NAME)/include
@@ -280,13 +371,13 @@ $(TARGET_DIR)/usr/bin/gcc: $(GCC_BUILD_DIR3)/.compiled
 	-mv $(TARGET_DIR)/usr/bin/$(GNU_TARGET_NAME)-g++ $(TARGET_DIR)/usr/bin/g++
 	-mv $(TARGET_DIR)/usr/bin/$(GNU_TARGET_NAME)-c++filt $(TARGET_DIR)/usr/bin/c++filt
 	-cp -dpf $(STAGING_DIR)/lib/libgcc* $(TARGET_DIR)/lib/
-	chmod a-x $(STAGING_DIR)/lib/*++*
-	cp -a $(STAGING_DIR)/lib/*++* $(TARGET_DIR)/lib/
-	cp -a $(STAGING_DIR)/include/c++ $(TARGET_DIR)/usr/include/
+	-chmod a-x $(STAGING_DIR)/lib/*++*
+	-cp -a $(STAGING_DIR)/lib/*++* $(TARGET_DIR)/lib/
+	-cp -a $(STAGING_DIR)/include/c++ $(TARGET_DIR)/usr/include/
 	-mv $(TARGET_DIR)/lib/*.a $(TARGET_DIR)/usr/lib/
 	-mv $(TARGET_DIR)/lib/*.la $(TARGET_DIR)/usr/lib/
 	rm -f $(TARGET_DIR)/lib/libstdc++.so
-	(cd $(TARGET_DIR)/usr/lib; ln -fs /lib/libstdc++.so.5.0.2 libstdc++.so)
+	-(cd $(TARGET_DIR)/usr/lib; ln -fs /lib/libstdc++.so.5.0.2 libstdc++.so)
 	-$(STRIP) $(TARGET_DIR)/bin/* 
 	-$(STRIP) $(TARGET_DIR)/usr/bin/* 
 	rm -rf $(TARGET_DIR)/share/locale $(TARGET_DIR)/usr/info \
@@ -295,7 +386,7 @@ $(TARGET_DIR)/usr/bin/gcc: $(GCC_BUILD_DIR3)/.compiled
 	# gcc "fixincludes" step is totally broken and takes unwanted
 	# stuff from the host system.  Fix that here.
 	rm -rf $(TARGET_DIR)/usr/lib/gcc-lib/$(GNU_TARGET_NAME)/*/include/*
-	cp -a $(STAGING_DIR)/usr/lib/gcc-lib/$(GNU_TARGET_NAME)/*/include/* \
+	-cp -a $(STAGING_DIR)/usr/lib/gcc-lib/$(GNU_TARGET_NAME)/*/include/* \
 		$(TARGET_DIR)/usr/lib/gcc-lib/$(GNU_TARGET_NAME)/*/include/
 	touch -c $(TARGET_DIR)/usr/bin/gcc