toolchain/Makefile

   1 #
   2 # Copyright (C) 2007-2008 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 := kernel-headers $(if $(CONFIG_GDB),gdb) $(if $(CONFIG_NATIVE_TOOLCHAIN),,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 $(curdir)/$(LIBC)/prepare:=$(curdir)/kernel-headers/install
  37 ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
  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 ifneq ($(ARCH),)
  50   $(TOOLCHAIN_DIR)/info.mk: .config
  51         @for dir in $(TOOLCHAIN_DIR); do ( \
  52                 set -x; \
  53                 mkdir -p "$$dir"; \
  54                 cd "$$dir"; \
  55                 mkdir -p stamp lib usr/include usr/lib ; \
  56         ); done
  57         @grep GCC_VERSION $@ >/dev/null 2>&1 || $(INSTALL_DATA) $(TOPDIR)/toolchain/info.mk $@
  58         @touch $@
  59 endif
  60
  61 # prerequisites for the individual targets
  62 $(curdir)/ := .config prereq
  63 $(curdir)//prepare = $(STAGING_DIR)/.prepared $(TOOLCHAIN_DIR)/info.mk
  64 $(curdir)//compile = $(1)/prepare
  65 $(curdir)//install = $(1)/compile
  66
  67 $(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed:
  68
  69 $(eval $(call stampfile,$(curdir),toolchain,install,$(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed,,$(TOOLCHAIN_DIR)))
  70 $(eval $(call subdir,$(curdir)))
  71