toolchain/Makefile

   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/compile
  11 #    build & install binutils
  12 # 2) toolchain/gcc/minimal/compile
  13 #    build & install a minimal gcc, needed for steps 3 & 4
  14 # 3) toolchain/kernel-headers/compile
  15 #    install kernel headers, needed for step 4
  16 # 4) toolchain/libc/headers/compile
  17 #    build & install libc headers & support files, needed for step 5
  18 # 5) toolchain/gcc/initial/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/final/compile
  23 #    build & install the final gcc
  24 # 8) toolchain/libc/utils/compile
  25 #    build & install libc utilities
  26 #
  27 # For musl, steps 2 and 4 are skipped, and step 3 is done after 5
  28
  29 curdir:=toolchain
  30
  31 # subdirectories to descend into
  32 $(curdir)/builddirs := $(if $(CONFIG_GDB),gdb) $(if $(CONFIG_INSIGHT),insight) $(if $(CONFIG_EXTERNAL_TOOLCHAIN),wrapper,kernel-headers binutils gcc/initial gcc/final $(LIBC) fortify-headers) $(if $(CONFIG_YASM),yasm)
  33 ifdef CONFIG_USE_UCLIBC
  34   $(curdir)/builddirs += $(LIBC)/utils
  35 endif
  36
  37 # builddir dependencies
  38 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
  39   ifdef CONFIG_USE_MUSL
  40     $(curdir)/kernel-headers/compile:=$(curdir)/gcc/initial/compile
  41     $(curdir)/$(LIBC)/compile:=$(curdir)/kernel-headers/compile
  42   else
  43     $(curdir)/builddirs += $(LIBC)/headers gcc/minimal
  44     $(curdir)/gcc/minimal/compile:=$(curdir)/binutils/compile
  45     $(curdir)/kernel-headers/compile:=$(curdir)/gcc/minimal/compile
  46     $(curdir)/gcc/initial/prepare:=$(curdir)/gcc/minimal/prepare
  47     $(curdir)/$(LIBC)/prepare:=$(curdir)/$(LIBC)/headers/prepare
  48     $(curdir)/$(LIBC)/headers/compile:=$(curdir)/kernel-headers/compile
  49     $(curdir)/gcc/initial/compile:=$(curdir)/$(LIBC)/headers/compile
  50   endif
  51
  52   $(curdir)/gcc/initial/compile+=$(curdir)/binutils/compile
  53   $(curdir)/gcc/final/prepare:=$(curdir)/gcc/initial/prepare
  54   $(curdir)/$(LIBC)/compile:=$(curdir)/gcc/initial/compile
  55   $(curdir)/gcc/final/compile:=$(curdir)/$(LIBC)/compile
  56   $(curdir)/$(LIBC)/utils/compile:=$(curdir)/gcc/final/compile
  57   $(curdir)/$(LIBC)/utils/prepare:=$(curdir)/$(LIBC)/headers/prepare
  58 endif
  59
  60 $(curdir)/builddirs-compile:=$($(curdir)/builddirs-prepare)
  61
  62 ifndef DUMP_TARGET_DB
  63 ifneq ($(ARCH),)
  64   $(TOOLCHAIN_DIR)/info.mk: .config
  65         @for dir in $(TOOLCHAIN_DIR); do ( \
  66                 $(if $(QUIET),,set -x;) \
  67                 mkdir -p "$$dir"; \
  68                 cd "$$dir"; \
  69                 ln -nsf lib lib64; \
  70                 ln -nsf lib lib32; \
  71                 mkdir -p stamp lib usr/include usr/lib ; \
  72         ); done
  73         @grep GCC_VERSION $@ >/dev/null 2>&1 || $(INSTALL_DATA) $(TOPDIR)/toolchain/info.mk $@
  74         @touch $@
  75 endif
  76 endif
  77
  78 # prerequisites for the individual targets
  79 $(curdir)/ := .config prereq
  80 $(curdir)//prepare = $(STAGING_DIR)/.prepared $(TOOLCHAIN_DIR)/info.mk $(tools/stamp-compile)
  81 $(curdir)//compile = $(1)/prepare
  82 $(curdir)//compile = $(1)/compile
  83
  84 ifndef DUMP_TARGET_DB
  85 $(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed:
  86 endif
  87
  88 $(curdir)/install: $(curdir)/compile
  89
  90 $(eval $(call stampfile,$(curdir),toolchain,compile,$(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed,,$(TOOLCHAIN_DIR)))
  91 $(eval $(call stampfile,$(curdir),toolchain,check,$(TMP_DIR)/.build))
  92 $(eval $(call subdir,$(curdir)))
  93