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)
  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     $(curdir)/$(LIBC)/headers/compile:=$(curdir)/kernel-headers/compile
  47     $(curdir)/gcc/initial/compile:=$(curdir)/$(LIBC)/headers/compile
  48   endif
  49
  50   $(curdir)/gcc/initial/compile+=$(curdir)/binutils/compile
  51   $(curdir)/$(LIBC)/compile:=$(curdir)/gcc/initial/compile
  52   $(curdir)/gcc/final/compile:=$(curdir)/$(LIBC)/compile
  53   $(curdir)/$(LIBC)/utils/compile:=$(curdir)/gcc/final/compile
  54 endif
  55
  56 ifndef DUMP_TARGET_DB
  57 ifneq ($(ARCH),)
  58   $(TOOLCHAIN_DIR)/info.mk: .config
  59         @for dir in $(TOOLCHAIN_DIR); do ( \
  60                 $(if $(QUIET),,set -x;) \
  61                 mkdir -p "$$dir"; \
  62                 cd "$$dir"; \
  63                 ln -nsf lib lib64; \
  64                 ln -nsf lib lib32; \
  65                 mkdir -p stamp lib usr/include usr/lib ; \
  66         ); done
  67         @grep GCC_VERSION $@ >/dev/null 2>&1 || $(INSTALL_DATA) $(TOPDIR)/toolchain/info.mk $@
  68         @touch $@
  69 endif
  70 endif
  71
  72 ifdef CONFIG_BUILDBOT
  73 ifneq ($(wildcard $(TOPDIR)/.git),)
  74   $(TOOLCHAIN_DIR)/stamp/.ver_check: $(TMP_DIR)/.build
  75         cd "$(TOPDIR)"; git log --format=%h -1 toolchain > $(TMP_DIR)/.ver_check
  76         cmp -s $(TMP_DIR)/.ver_check $@ || { \
  77                 rm -rf $(BUILD_DIR) $(STAGING_DIR) $(TOOLCHAIN_DIR) $(BUILD_DIR_TOOLCHAIN); \
  78                 mkdir -p $(TOOLCHAIN_DIR)/stamp; \
  79                 mv $(TMP_DIR)/.ver_check $@; \
  80         }
  81
  82 $(TOOLCHAIN_DIR)/info.mk $(STAGING_DIR)/.prepared: $(TOOLCHAIN_DIR)/stamp/.ver_check
  83 endif
  84 endif
  85
  86 # prerequisites for the individual targets
  87 $(curdir)/ := .config prereq
  88 $(curdir)//compile = $(STAGING_DIR)/.prepared $(TOOLCHAIN_DIR)/info.mk $(tools/stamp-compile)
  89
  90 ifndef DUMP_TARGET_DB
  91 $(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed:
  92 endif
  93
  94 $(curdir)/install: $(curdir)/compile
  95
  96 $(eval $(call stampfile,$(curdir),toolchain,compile,$(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed,,$(TOOLCHAIN_DIR)))
  97 $(eval $(call stampfile,$(curdir),toolchain,check,$(TMP_DIR)/.build))
  98 $(eval $(call subdir,$(curdir)))
  99