litecross: separate binutils and gcc build trees

putting them together in one tree only works if they're "sufficiently
close" in version, due to each needing (approximately) its own version
of libiberty and possibly the top-level configure infrastructure.

eventually, I want to stage the installs of binutils and gcc under the
build directory, so that the new binutils can be used from their
staged install paths. leave that refactorization for later; for now,
give gcc the binutils it needs directly out of the binutils build
directories.

litecross/Makefile

@@ -10,7 +10,7 @@ COMMON_CONFIG =
 GCC_CONFIG = 
 TOOLCHAIN_CONFIG = 
 
-XGCC_DIR = ../obj_toolchain/gcc
+XGCC_DIR = ../obj_gcc/gcc
 XGCC = $(XGCC_DIR)/xgcc -B $(XGCC_DIR)
 
 -include config.mak
@@ -49,7 +49,14 @@ MAKE += INFO_DEPS= infodir=
 MAKE += ac_cv_prog_lex_root=lex.yy.c
 MAKE += MAKEINFO=false
 
-FULL_TOOLCHAIN_CONFIG = --enable-languages=c,c++ \
+FULL_BINUTILS_CONFIG = \
+	$(COMMON_CONFIG) $(BINUTILS_CONFIG) $(TOOLCHAIN_CONFIG) \
+	--disable-werror \
+	--target=$(TARGET) --prefix= \
+	--libdir=/lib --disable-multilib \
+	--with-sysroot=$(SYSROOT)
+
+FULL_GCC_CONFIG = --enable-languages=c,c++ \
 	$(GCC_CONFIG_FOR_TARGET) \
 	$(COMMON_CONFIG) $(GCC_CONFIG) $(TOOLCHAIN_CONFIG) \
 	--disable-werror \
@@ -72,16 +79,28 @@ endif
 
 ifeq ($(HOST),)
 SYSROOT = /$(TARGET)
-FULL_TOOLCHAIN_CONFIG += --with-build-sysroot=$(CURDIR)/obj_sysroot
-FULL_MUSL_CONFIG += CC="$(XGCC)" LIBCC="../obj_toolchain/$(TARGET)/libgcc/libgcc.a" 
-MUSL_VARS = AR=../obj_toolchain/binutils/ar RANLIB=../obj_toolchain/binutils/ranlib
-obj_musl/.lc_configured: | obj_toolchain/gcc/.lc_built
-obj_musl/.lc_built: | obj_toolchain/$(TARGET)/libgcc/libgcc.a
-obj_toolchain/gcc/.lc_built: | obj_sysroot/usr obj_sysroot/lib32 obj_sysroot/lib64 obj_sysroot/include
-obj_toolchain/.lc_built: | obj_sysroot/.lc_libs obj_sysroot/.lc_headers
+FULL_GCC_CONFIG += --with-build-sysroot=$(CURDIR)/obj_sysroot \
+	AR_FOR_TARGET=$(PWD)/obj_binutils/binutils/ar \
+	AS_FOR_TARGET=$(PWD)/obj_binutils/gas/as-new \
+	LD_FOR_TARGET=$(PWD)/obj_binutils/ld/ld-new \
+	NM_FOR_TARGET=$(PWD)/obj_binutils/binutils/nm-new \
+	OBJCOPY_FOR_TARGET=$(PWD)/obj_binutils/binutils/objcopy \
+	OBJDUMP_FOR_TARGET=$(PWD)/obj_binutils/binutils/objdump \
+	RANLIB_FOR_TARGET=$(PWD)/obj_binutils/binutils/ranlib \
+	READELF_FOR_TARGET=$(PWD)/obj_binutils/binutils/readelf \
+	STRIP_FOR_TARGET=$(PWD)/obj_binutils/binutils/strip-new \
+	# end
+FULL_MUSL_CONFIG += CC="$(XGCC)" LIBCC="../obj_gcc/$(TARGET)/libgcc/libgcc.a" 
+MUSL_VARS = AR=../obj_binutils/binutils/ar RANLIB=../obj_binutils/binutils/ranlib
+obj_musl/.lc_configured: | obj_gcc/gcc/.lc_built
+obj_musl/.lc_built: | obj_gcc/$(TARGET)/libgcc/libgcc.a
+obj_gcc/gcc/.lc_built: | obj_sysroot/usr obj_sysroot/lib32 obj_sysroot/lib64 obj_sysroot/include
+obj_gcc/.lc_built: | obj_sysroot/.lc_libs obj_sysroot/.lc_headers
+obj_gcc/.lc_configured: obj_binutils/.lc_built
 else
 SYSROOT = /
-FULL_TOOLCHAIN_CONFIG += --host=$(HOST)
+FULL_BINUTILS_CONFIG += --host=$(HOST)
+FULL_GCC_CONFIG += --host=$(HOST)
 MUSL_VARS = 
 endif
 
@@ -95,54 +114,59 @@ install: all
 
 else
 
-all: musl toolchain
+all: musl gcc binutils
 
-install: install-musl install-toolchain
+install: install-musl install-gcc install-binutils
 
 musl: obj_musl/.lc_built
 
-toolchain: obj_toolchain/.lc_built
+toolchain: gcc binutils
+
+install-toolchain: install-gcc install-binutils
+
+gcc: obj_gcc/.lc_built
+
+binutils: obj_binutils/.lc_built
 
 .PHONY: all musl toolchain install-musl install-toolchain clean
 
 src_binutils: | $(BINUTILS_SRCDIR)
 	ln -sf $(BINUTILS_SRCDIR) $@
 
-src_gcc: | $(GCC_SRCDIR)
+src_gcc_base: | $(GCC_SRCDIR)
 	ln -sf $(GCC_SRCDIR) $@
 
 src_musl: | $(MUSL_SRCDIR)
 	ln -sf $(MUSL_SRCDIR) $@
 
 ifneq ($(GMP_SRCDIR),)
-src_toolchain: src_gmp
+src_gcc: src_gmp
 src_gmp: | $(GMP_SRCDIR)
 	ln -sf "$(GMP_SRCDIR)" $@
 endif
 
 ifneq ($(MPC_SRCDIR),)
-src_toolchain: src_mpc
+src_gcc: src_mpc
 src_mpc: | $(MPC_SRCDIR)
 	ln -sf "$(MPC_SRCDIR)" $@
 endif
 
 ifneq ($(MPFR_SRCDIR),)
-src_toolchain: src_mpfr
+src_gcc: src_mpfr
 src_mpfr: | $(MPFR_SRCDIR)
 	ln -sf "$(MPFR_SRCDIR)" $@
 endif
 
 ifneq ($(ISL_SRCDIR),)
-src_toolchain: src_isl
+src_gcc: src_isl
 src_isl: | $(ISL_SRCDIR)
 	ln -sf "$(ISL_SRCDIR)" $@
 endif
 
-src_toolchain: src_binutils src_gcc
+src_gcc: src_gcc_base
 	rm -rf $@ $@.tmp
 	mkdir $@.tmp
-	cd $@.tmp && ln -sf ../src_binutils/* .
-	cd $@.tmp && ln -sf ../src_gcc/* .
+	cd $@.tmp && ln -sf ../src_gcc_base/* .
 	$(if $(GMP_SRCDIR),cd $@.tmp && ln -sf ../src_gmp gmp)
 	$(if $(MPC_SRCDIR),cd $@.tmp && ln -sf ../src_mpc mpc)
 	$(if $(MPFR_SRCDIR),cd $@.tmp && ln -sf ../src_mpfr mpfr)
@@ -164,12 +188,20 @@ obj_sysroot/lib32: | obj_sysroot
 obj_sysroot/lib64: | obj_sysroot
 	ln -sf lib $@
 
-obj_toolchain/.lc_configured: | obj_toolchain src_toolchain
-	cd obj_toolchain && ../src_toolchain/configure $(FULL_TOOLCHAIN_CONFIG)
+obj_binutils/.lc_configured: | obj_binutils src_binutils
+	cd obj_binutils && ../src_binutils/configure $(FULL_BINUTILS_CONFIG)
+	touch $@
+
+obj_binutils/.lc_built: | obj_binutils/.lc_configured
+	cd obj_binutils && $(MAKE) MAKE="$(MAKE)" all
 	touch $@
 
-obj_toolchain/gcc/.lc_built: | obj_toolchain/.lc_configured
-	cd obj_toolchain && $(MAKE) MAKE="$(MAKE)" all-gcc
+obj_gcc/.lc_configured: | obj_gcc src_gcc
+	cd obj_gcc && ../src_gcc/configure $(FULL_GCC_CONFIG)
+	touch $@
+
+obj_gcc/gcc/.lc_built: | obj_gcc/.lc_configured
+	cd obj_gcc && $(MAKE) MAKE="$(MAKE)" all-gcc
 	touch $@
 
 obj_musl/.lc_configured: | obj_musl src_musl
@@ -180,8 +212,8 @@ obj_sysroot/.lc_headers: | obj_musl/.lc_configured obj_sysroot
 	cd obj_musl && $(MAKE) DESTDIR=$(CURDIR)/obj_sysroot install-headers
 	touch $@
 
-obj_toolchain/$(TARGET)/libgcc/libgcc.a: | obj_sysroot/.lc_headers
-	cd obj_toolchain && $(MAKE) MAKE="$(MAKE) enable_shared=no" all-target-libgcc
+obj_gcc/$(TARGET)/libgcc/libgcc.a: | obj_sysroot/.lc_headers
+	cd obj_gcc && $(MAKE) MAKE="$(MAKE) enable_shared=no" all-target-libgcc
 
 obj_musl/.lc_built: | obj_musl/.lc_configured
 	cd obj_musl && $(MAKE) $(MUSL_VARS)
@@ -191,15 +223,18 @@ obj_sysroot/.lc_libs: | obj_musl/.lc_built
 	cd obj_musl && $(MAKE) $(MUSL_VARS) DESTDIR=$(CURDIR)/obj_sysroot install
 	touch $@
 
-obj_toolchain/.lc_built: | obj_toolchain/.lc_configured obj_toolchain/gcc/.lc_built
-	cd obj_toolchain && $(MAKE) MAKE="$(MAKE)"
+obj_gcc/.lc_built: | obj_gcc/.lc_configured obj_gcc/gcc/.lc_built
+	cd obj_gcc && $(MAKE) MAKE="$(MAKE)"
 	touch $@
 
 install-musl: | obj_musl/.lc_built
 	cd obj_musl && $(MAKE) $(MUSL_VARS) DESTDIR=$(DESTDIR)$(OUTPUT)$(SYSROOT) install
 
-install-toolchain: | obj_toolchain/.lc_built
-	cd obj_toolchain && $(MAKE) MAKE="$(MAKE)" DESTDIR=$(DESTDIR)$(OUTPUT) install
+install-binutils: | obj_binutils/.lc_built
+	cd obj_binutils && $(MAKE) MAKE="$(MAKE)" DESTDIR=$(DESTDIR)$(OUTPUT) install
+
+install-gcc: | obj_gcc/.lc_built
+	cd obj_gcc && $(MAKE) MAKE="$(MAKE)" DESTDIR=$(DESTDIR)$(OUTPUT) install
 	ln -sf $(TARGET)-gcc $(DESTDIR)$(OUTPUT)/bin/$(TARGET)-cc
 
 ifneq ($(LINUX_SRCDIR),)