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_EXTERNAL_TOOLCHAIN),wrapper,kernel-headers binutils gcc/initial gcc/final $(LIBC) fortify-headers) $(if $(CONFIG_NASM),nasm) autoconf-lean
  33
  34 # builddir dependencies
  35 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
  36   ifdef CONFIG_USE_MUSL
  37     $(curdir)/kernel-headers/compile:=$(curdir)/gcc/initial/compile
  38     $(curdir)/$(LIBC)/compile:=$(curdir)/kernel-headers/compile
  39   else
  40     $(curdir)/builddirs += $(LIBC)/headers gcc/minimal
  41     $(curdir)/gcc/minimal/compile:=$(curdir)/binutils/compile
  42     $(curdir)/kernel-headers/compile:=$(curdir)/gcc/minimal/compile
  43     $(curdir)/$(LIBC)/headers/compile:=$(curdir)/kernel-headers/compile
  44     $(curdir)/gcc/initial/compile:=$(curdir)/$(LIBC)/headers/compile
  45   endif
  46
  47   $(curdir)/gcc/initial/compile+=$(curdir)/binutils/compile
  48   $(curdir)/$(LIBC)/compile:=$(curdir)/gcc/initial/compile
  49   $(curdir)/gcc/final/compile:=$(curdir)/$(LIBC)/compile $(curdir)/kernel-headers/compile
  50   $(curdir)/$(LIBC)/utils/compile:=$(curdir)/gcc/final/compile
  51   $(curdir)/autoconf-lean/compile:=$(curdir)/gcc/final/compile
  52 endif
  53
  54 ifndef DUMP_TARGET_DB
  55 ifneq ($(ARCH),)
  56   $(TOOLCHAIN_DIR)/info.mk: .config
  57         @for dir in $(TOOLCHAIN_DIR); do ( \
  58                 $(if $(QUIET),,set -x;) \
  59                 mkdir -p "$$dir"; \
  60                 cd "$$dir"; \
  61                 ln -nsf lib lib64; \
  62                 ln -nsf lib lib32; \
  63                 mkdir -p stamp lib usr/include usr/lib ; \
  64         ); done
  65         @grep GCC_VERSION $@ >/dev/null 2>&1 || $(INSTALL_DATA) $(TOPDIR)/toolchain/info.mk $@
  66         @touch $@
  67 endif
  68 endif
  69
  70 ifdef CONFIG_BUILDBOT
  71 ifneq ($(wildcard $(TOPDIR)/.git),)
  72   $(TOOLCHAIN_DIR)/stamp/.ver_check: $(TMP_DIR)/.build
  73         cd "$(TOPDIR)"; git log --format=%h -1 toolchain > $(TMP_DIR)/.ver_check
  74         cmp -s $(TMP_DIR)/.ver_check $@ || { \
  75                 rm -rf $(BUILD_DIR) $(STAGING_DIR) $(TOOLCHAIN_DIR) $(BUILD_DIR_TOOLCHAIN); \
  76                 mkdir -p $(TOOLCHAIN_DIR)/stamp; \
  77                 mv $(TMP_DIR)/.ver_check $@; \
  78         }
  79
  80 $(TOOLCHAIN_DIR)/info.mk $(STAGING_DIR)/.prepared: $(TOOLCHAIN_DIR)/stamp/.ver_check
  81 endif
  82 endif
  83
  84 # prerequisites for the individual targets
  85 $(curdir)/ := .config prereq
  86 $(curdir)//compile = $(STAGING_DIR)/.prepared $(TOOLCHAIN_DIR)/info.mk $(tools/stamp-compile)
  87
  88 ifndef DUMP_TARGET_DB
  89 $(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed:
  90 endif
  91
  92 $(curdir)/install: $(curdir)/compile
  93
  94 $(eval $(call stampfile,$(curdir),toolchain,compile,$(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed,,$(TOOLCHAIN_DIR)))
  95 $(eval $(call stampfile,$(curdir),toolchain,check,$(TMP_DIR)/.build))
  96 $(eval $(call subdir,$(curdir)))
  97