# # Copyright (C) 2007-2009 OpenWrt.org # # This is free software, licensed under the GNU General Public License v2. # See /LICENSE for more information. # # Main makefile for the toolchain # # Steps: # 1) toolchain/binutils/compile # build & install binutils # 2) toolchain/gcc/minimal/compile # build & install a minimal gcc, needed for steps 3 & 4 # 3) toolchain/kernel-headers/compile # install kernel headers, needed for step 4 # 4) toolchain/libc/headers/compile # build & install libc headers & support files, needed for step 5 # 5) toolchain/gcc/initial/compile # build & install an initial gcc, needed for step 6 # 6) toolchain/libc/compile # build & install the final libc # 7) toolchain/gcc/final/compile # build & install the final gcc # 8) toolchain/libc/utils/compile # build & install libc utilities # # For musl, steps 2 and 4 are skipped, and step 3 is done after 5 curdir:=toolchain # subdirectories to descend into $(curdir)/builddirs := $(if $(CONFIG_GDB),gdb) $(if $(CONFIG_EXTERNAL_TOOLCHAIN),wrapper,kernel-headers binutils gcc/initial gcc/final $(LIBC) fortify-headers) $(if $(CONFIG_NASM),nasm) ifdef CONFIG_USE_UCLIBC $(curdir)/builddirs += $(LIBC)/utils endif # builddir dependencies ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),) ifdef CONFIG_USE_MUSL $(curdir)/kernel-headers/compile:=$(curdir)/gcc/initial/compile $(curdir)/$(LIBC)/compile:=$(curdir)/kernel-headers/compile else $(curdir)/builddirs += $(LIBC)/headers gcc/minimal $(curdir)/gcc/minimal/compile:=$(curdir)/binutils/compile $(curdir)/kernel-headers/compile:=$(curdir)/gcc/minimal/compile $(curdir)/$(LIBC)/headers/compile:=$(curdir)/kernel-headers/compile $(curdir)/gcc/initial/compile:=$(curdir)/$(LIBC)/headers/compile endif $(curdir)/gcc/initial/compile+=$(curdir)/binutils/compile $(curdir)/$(LIBC)/compile:=$(curdir)/gcc/initial/compile $(curdir)/gcc/final/compile:=$(curdir)/$(LIBC)/compile $(curdir)/$(LIBC)/utils/compile:=$(curdir)/gcc/final/compile endif ifndef DUMP_TARGET_DB ifneq ($(ARCH),) $(TOOLCHAIN_DIR)/info.mk: .config @for dir in $(TOOLCHAIN_DIR); do ( \ $(if $(QUIET),,set -x;) \ mkdir -p "$$dir"; \ cd "$$dir"; \ ln -nsf lib lib64; \ ln -nsf lib lib32; \ mkdir -p stamp lib usr/include usr/lib ; \ ); done @grep GCC_VERSION $@ >/dev/null 2>&1 || $(INSTALL_DATA) $(TOPDIR)/toolchain/info.mk $@ @touch $@ endif endif ifdef CONFIG_BUILDBOT ifneq ($(wildcard $(TOPDIR)/.git),) $(TOOLCHAIN_DIR)/stamp/.ver_check: $(TMP_DIR)/.build cd "$(TOPDIR)"; git log --format=%h -1 toolchain > $(TMP_DIR)/.ver_check cmp -s $(TMP_DIR)/.ver_check $@ || { \ rm -rf $(BUILD_DIR) $(STAGING_DIR) $(TOOLCHAIN_DIR) $(BUILD_DIR_TOOLCHAIN); \ mkdir -p $(TOOLCHAIN_DIR)/stamp; \ mv $(TMP_DIR)/.ver_check $@; \ } $(TOOLCHAIN_DIR)/info.mk $(STAGING_DIR)/.prepared: $(TOOLCHAIN_DIR)/stamp/.ver_check endif endif # prerequisites for the individual targets $(curdir)/ := .config prereq $(curdir)//compile = $(STAGING_DIR)/.prepared $(TOOLCHAIN_DIR)/info.mk $(tools/stamp-compile) ifndef DUMP_TARGET_DB $(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed: endif $(curdir)/install: $(curdir)/compile $(eval $(call stampfile,$(curdir),toolchain,compile,$(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed,,$(TOOLCHAIN_DIR))) $(eval $(call stampfile,$(curdir),toolchain,check,$(TMP_DIR)/.build)) $(eval $(call subdir,$(curdir)))