| 1 | # |
| 2 | # Copyright (C) 2007-2009 OpenWrt.org |
| 3 | # |
| 4 | # This is free software, licensed under the GNU General Public License v2. |
| 5 | # See /LICENSE for more information. |
| 6 | # |
| 7 | # Main makefile for the toolchain |
| 8 | # |
| 9 | # Steps: |
| 10 | # 1) toolchain/binutils/install |
| 11 | # build & install binutils |
| 12 | # 2) toolchain/gcc/prepare |
| 13 | # build & install a minimal gcc, needed for steps 3 & 4 |
| 14 | # 3) toolchain/kernel-headers/install |
| 15 | # install kernel headers, needed for step 4 |
| 16 | # 4) toolchain/libc/prepare |
| 17 | # build & install libc headers & support files, needed for step 5 |
| 18 | # 5) toolchain/gcc/compile |
| 19 | # build & install an initial gcc, needed for step 6 |
| 20 | # 6) toolchain/libc/compile |
| 21 | # build & install the final libc |
| 22 | # 7) toolchain/gcc/install |
| 23 | # build & install the final gcc |
| 24 | # 8) toolchain/libc/install |
| 25 | # build & install libc utilities |
| 26 | # |
| 27 | |
| 28 | curdir:=toolchain |
| 29 | |
| 30 | # subdirectories to descend into |
| 31 | $(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)) |
| 32 | $(curdir)/builddirs-compile:=$($(curdir)/builddirs-prepare) |
| 33 | $(curdir)/builddirs-install:=$($(curdir)/builddirs-compile) |
| 34 | |
| 35 | # builddir dependencies |
| 36 | ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),) |
| 37 | $(curdir)/$(LIBC)/prepare:=$(curdir)/kernel-headers/install |
| 38 | $(curdir)/gcc/prepare:=$(curdir)/binutils/install |
| 39 | $(curdir)/kernel-headers/install:=$(curdir)/gcc/prepare |
| 40 | $(curdir)/gcc/compile:=$(curdir)/$(LIBC)/prepare |
| 41 | $(curdir)/$(LIBC)/compile:=$(curdir)/gcc/compile |
| 42 | $(curdir)/gcc/install:=$(curdir)/$(LIBC)/compile |
| 43 | $(curdir)/$(LIBC)/install:=$(curdir)/gcc/install |
| 44 | ifneq ($(CONFIG_GLIBC_PORTS),) |
| 45 | $(curdir)/glibc/prepare:=$(curdir)/glibc-ports/prepare |
| 46 | endif |
| 47 | endif |
| 48 | |
| 49 | ifdef CONFIG_GCC_VERSION_LLVM |
| 50 | $(curdir)/builddirs += llvm |
| 51 | $(curdir)/gcc/prepare += $(curdir)/llvm/install |
| 52 | endif |
| 53 | |
| 54 | ifneq ($(ARCH),) |
| 55 | $(TOOLCHAIN_DIR)/info.mk: .config |
| 56 | @for dir in $(TOOLCHAIN_DIR); do ( \ |
| 57 | set -x; \ |
| 58 | mkdir -p "$$dir"; \ |
| 59 | cd "$$dir"; \ |
| 60 | mkdir -p stamp lib usr/include usr/lib ; \ |
| 61 | ); done |
| 62 | @grep GCC_VERSION $@ >/dev/null 2>&1 || $(INSTALL_DATA) $(TOPDIR)/toolchain/info.mk $@ |
| 63 | @touch $@ |
| 64 | endif |
| 65 | |
| 66 | # prerequisites for the individual targets |
| 67 | $(curdir)/ := .config prereq |
| 68 | $(curdir)//prepare = $(STAGING_DIR)/.prepared $(TOOLCHAIN_DIR)/info.mk |
| 69 | $(curdir)//compile = $(1)/prepare |
| 70 | $(curdir)//install = $(1)/compile |
| 71 | |
| 72 | $(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed: |
| 73 | |
| 74 | $(eval $(call stampfile,$(curdir),toolchain,install,$(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed,,$(TOOLCHAIN_DIR))) |
| 75 | $(eval $(call subdir,$(curdir))) |
| 76 | |
| 77 | |
