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77 lines
2.5 KiB
Makefile
77 lines
2.5 KiB
Makefile
#
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# Copyright (C) 2007-2009 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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# Main makefile for the toolchain
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#
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# Steps:
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# 1) toolchain/binutils/install
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# build & install binutils
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# 2) toolchain/gcc/prepare
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# build & install a minimal gcc, needed for steps 3 & 4
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# 3) toolchain/kernel-headers/install
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# install kernel headers, needed for step 4
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# 4) toolchain/libc/prepare
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# build & install libc headers & support files, needed for step 5
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# 5) toolchain/gcc/compile
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# build & install an initial gcc, needed for step 6
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# 6) toolchain/libc/compile
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# build & install the final libc
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# 7) toolchain/gcc/install
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# build & install the final gcc
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# 8) toolchain/libc/install
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# build & install libc utilities
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#
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curdir:=toolchain
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# subdirectories to descend into
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$(curdir)/builddirs := $(if $(CONFIG_GDB),gdb) $(if $(CONFIG_INSIGHT),insight) $(if $(CONFIG_EXTERNAL_TOOLCHAIN),,kernel-headers binutils gcc $(LIBC) $(if $(CONFIG_GLIBC_PORTS),glibc-ports))
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$(curdir)/builddirs-compile:=$($(curdir)/builddirs-prepare)
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$(curdir)/builddirs-install:=$($(curdir)/builddirs-compile)
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# builddir dependencies
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ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
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$(curdir)/$(LIBC)/prepare:=$(curdir)/kernel-headers/install
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$(curdir)/gcc/prepare:=$(curdir)/binutils/install
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$(curdir)/kernel-headers/install:=$(curdir)/gcc/prepare
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$(curdir)/gcc/compile:=$(curdir)/$(LIBC)/prepare
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$(curdir)/$(LIBC)/compile:=$(curdir)/gcc/compile
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$(curdir)/gcc/install:=$(curdir)/$(LIBC)/compile
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$(curdir)/$(LIBC)/install:=$(curdir)/gcc/install
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ifneq ($(CONFIG_GLIBC_PORTS),)
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$(curdir)/glibc/prepare:=$(curdir)/glibc-ports/prepare
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endif
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endif
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ifdef CONFIG_GCC_VERSION_LLVM
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$(curdir)/builddirs += llvm
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$(curdir)/gcc/prepare += $(curdir)/llvm/install
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endif
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ifneq ($(ARCH),)
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$(TOOLCHAIN_DIR)/info.mk: .config
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@for dir in $(TOOLCHAIN_DIR); do ( \
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set -x; \
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mkdir -p "$$dir"; \
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cd "$$dir"; \
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mkdir -p stamp lib usr/include usr/lib ; \
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); done
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@grep GCC_VERSION $@ >/dev/null 2>&1 || $(INSTALL_DATA) $(TOPDIR)/toolchain/info.mk $@
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@touch $@
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endif
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# prerequisites for the individual targets
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$(curdir)/ := .config prereq
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$(curdir)//prepare = $(STAGING_DIR)/.prepared $(TOOLCHAIN_DIR)/info.mk
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$(curdir)//compile = $(1)/prepare
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$(curdir)//install = $(1)/compile
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$(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed:
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$(eval $(call stampfile,$(curdir),toolchain,install,$(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed,,$(TOOLCHAIN_DIR)))
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$(eval $(call subdir,$(curdir)))
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