Makefile

   1 ##
   2 ## This file is part of the coreboot project.
   3 ##
   4 ## Copyright (C) 2008 Advanced Micro Devices, Inc.
   5 ## Copyright (C) 2008 Uwe Hermann <uwe@hermann-uwe.de>
   6 ## Copyright (C) 2009-2010 coresystems GmbH
   7 ## Copyright (C) 2011 secunet Security Networks AG
   8 ##
   9 ## This program is free software; you can redistribute it and/or modify
  10 ## it under the terms of the GNU General Public License as published by
  11 ## the Free Software Foundation; version 2 of the License.
  12 ##
  13 ## This program is distributed in the hope that it will be useful,
  14 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 ## GNU General Public License for more details.
  17 ##
  18 ## You should have received a copy of the GNU General Public License
  19 ## along with this program; if not, write to the Free Software
  20 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  21 ##
  22
  23 ifeq ($(INNER_SCANBUILD),y)
  24 CC_real:=$(CC)
  25 endif
  26
  27 $(if $(wildcard .xcompile),,$(eval $(shell bash util/xcompile/xcompile > .xcompile)))
  28 include .xcompile
  29
  30 ifeq ($(INNER_SCANBUILD),y)
  31 CC:=$(CC_real)
  32 HOSTCC:=$(CC_real) --hostcc
  33 HOSTCXX:=$(CC_real) --hostcxx
  34 endif
  35
  36 export top := $(CURDIR)
  37 export src := src
  38 export srck := $(top)/util/kconfig
  39 export obj ?= build
  40 export objutil ?= $(obj)/util
  41 export objk := $(objutil)/kconfig
  42
  43
  44 export KCONFIG_AUTOHEADER := $(obj)/config.h
  45 export KCONFIG_AUTOCONFIG := $(obj)/auto.conf
  46
  47 # directory containing the toplevel Makefile.inc
  48 TOPLEVEL := .
  49
  50 CONFIG_SHELL := sh
  51 KBUILD_DEFCONFIG := configs/defconfig
  52 UNAME_RELEASE := $(shell uname -r)
  53 DOTCONFIG ?= .config
  54 KCONFIG_CONFIG = $(DOTCONFIG)
  55 export KCONFIG_CONFIG
  56 HAVE_DOTCONFIG := $(wildcard $(DOTCONFIG))
  57 MAKEFLAGS += -rR --no-print-directory
  58
  59 # Make is silent per default, but 'make V=1' will show all compiler calls.
  60 Q:=@
  61 ifneq ($(V),1)
  62 ifneq ($(Q),)
  63 .SILENT:
  64 endif
  65 endif
  66
  67 HOSTCC = gcc
  68 HOSTCXX = g++
  69 HOSTCFLAGS := -I$(srck) -I$(objk) -g
  70 HOSTCXXFLAGS := -I$(srck) -I$(objk)
  71 LIBGCC_FILE_NAME := $(shell test -r `$(CC) -print-libgcc-file-name` && $(CC) -print-libgcc-file-name)
  72
  73 DOXYGEN := doxygen
  74 DOXYGEN_OUTPUT_DIR := doxygen
  75
  76 all: real-all
  77
  78 # This include must come _before_ the pattern rules below!
  79 # Order _does_ matter for pattern rules.
  80 include util/kconfig/Makefile
  81
  82 # Three cases where we don't need fully populated $(obj) lists:
  83 # 1. when no .config exists
  84 # 2. when make config (in any flavour) is run
  85 # 3. when make distclean is run
  86 # Don't waste time on reading all Makefile.incs in these cases
  87 ifeq ($(strip $(HAVE_DOTCONFIG)),)
  88 NOCOMPILE:=1
  89 endif
  90 ifneq ($(MAKECMDGOALS),)
  91 ifneq ($(filter %config distclean,$(MAKECMDGOALS)),)
  92 NOCOMPILE:=1
  93 endif
  94 endif
  95
  96 ifeq ($(NOCOMPILE),1)
  97 include $(TOPLEVEL)/Makefile.inc
  98 real-all: config
  99
 100 else
 101
 102 include $(HAVE_DOTCONFIG)
 103
 104 ifneq ($(INNER_SCANBUILD),y)
 105 ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y)
 106 CC:=clang -m32
 107 HOSTCC:=clang
 108 endif
 109 endif
 110
 111 ifeq ($(CONFIG_CCACHE),y)
 112 CCACHE:=$(word 1,$(wildcard $(addsuffix /ccache,$(subst :, ,$(PATH)))))
 113 ifeq ($(CCACHE),)
 114 $(error ccache selected, but not found in PATH)
 115 endif
 116 CCACHE:=CCACHE_COMPILERCHECK=content CCACHE_BASEDIR=$(top) $(CCACHE)
 117 CC := $(CCACHE) $(CC)
 118 HOSTCC := $(CCACHE) $(HOSTCC)
 119 HOSTCXX := $(CCACHE) $(HOSTCXX)
 120 ROMCC := $(CCACHE) $(ROMCC)
 121 endif
 122
 123 strip_quotes = $(subst ",,$(subst \",,$(1)))
 124
 125 # The primary target needs to be here before we include the
 126 # other files
 127
 128 ifeq ($(INNER_SCANBUILD),y)
 129 CONFIG_SCANBUILD_ENABLE:=
 130 endif
 131
 132 ifeq ($(CONFIG_SCANBUILD_ENABLE),y)
 133 ifneq ($(CONFIG_SCANBUILD_REPORT_LOCATION),)
 134 CONFIG_SCANBUILD_REPORT_LOCATION:=-o $(CONFIG_SCANBUILD_REPORT_LOCATION)
 135 endif
 136 real-all:
 137         echo '#!/bin/sh' > .ccwrap
 138         echo 'CC="$(CC)"' >> .ccwrap
 139         echo 'if [ "$$1" = "--hostcc" ]; then shift; CC="$(HOSTCC)"; fi' >> .ccwrap
 140         echo 'if [ "$$1" = "--hostcxx" ]; then shift; CC="$(HOSTCXX)"; fi' >> .ccwrap
 141         echo 'eval $$CC $$*' >> .ccwrap
 142         chmod +x .ccwrap
 143         scan-build $(CONFIG_SCANBUILD_REPORT_LOCATION) -analyze-headers --use-cc=$(top)/.ccwrap --use-c++=$(top)/.ccwrap $(MAKE) INNER_SCANBUILD=y
 144 else
 145 real-all: real-target
 146 endif
 147
 148 # must come rather early
 149 .SECONDEXPANSION:
 150
 151 $(obj)/config.h:
 152         $(MAKE) oldconfig
 153
 154 # Add a new class of source/object files to the build system
 155 add-class= \
 156         $(eval $(1)-srcs:=) \
 157         $(eval $(1)-objs:=) \
 158         $(eval classes+=$(1))
 159
 160 # Special classes are managed types with special behaviour
 161 # On parse time, for each entry in variable $(1)-y
 162 # a handler $(1)-handler is executed with the arguments:
 163 # * $(1): directory the parser is in
 164 # * $(2): current entry
 165 add-special-class= \
 166         $(eval $(1):=) \
 167         $(eval special-classes+=$(1))
 168
 169 # Clean -y variables, include Makefile.inc
 170 # Add paths to files in X-y to X-srcs
 171 # Add subdirs-y to subdirs
 172 includemakefiles= \
 173         $(foreach class,classes subdirs $(classes) $(special-classes), $(eval $(class)-y:=)) \
 174         $(eval -include $(1)) \
 175         $(foreach class,$(classes-y), $(call add-class,$(class))) \
 176         $(foreach class,$(classes), \
 177                 $(eval $(class)-srcs+= \
 178                         $$(subst $(top)/,, \
 179                         $$(abspath $$(subst $(dir $(1))/,/,$$(addprefix $(dir $(1)),$$($(class)-y))))))) \
 180         $(foreach special,$(special-classes), \
 181                 $(foreach item,$($(special)-y), $(call $(special)-handler,$(dir $(1)),$(item)))) \
 182         $(eval subdirs+=$$(subst $(CURDIR)/,,$$(abspath $$(addprefix $(dir $(1)),$$(subdirs-y)))))
 183
 184 # For each path in $(subdirs) call includemakefiles
 185 # Repeat until subdirs is empty
 186 evaluate_subdirs= \
 187         $(eval cursubdirs:=$(subdirs)) \
 188         $(eval subdirs:=) \
 189         $(foreach dir,$(cursubdirs), \
 190                 $(eval $(call includemakefiles,$(dir)/Makefile.inc))) \
 191         $(if $(subdirs),$(eval $(call evaluate_subdirs)))
 192
 193 # collect all object files eligible for building
 194 subdirs:=$(TOPLEVEL)
 195 $(eval $(call evaluate_subdirs))
 196
 197 src-to-obj=$(addsuffix .$(1).o, $(basename $(patsubst src/%, $(obj)/%, $($(1)-srcs))))
 198 $(foreach class,$(classes),$(eval $(class)-objs:=$(call src-to-obj,$(class))))
 199
 200 allsrcs:=$(foreach var, $(addsuffix -srcs,$(classes)), $($(var)))
 201 allobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))
 202 alldirs:=$(sort $(abspath $(dir $(allobjs))))
 203
 204 # macro to define template macros that are used by use_template macro
 205 define create_cc_template
 206 # $1 obj class
 207 # $2 source suffix (c, S)
 208 # $3 additional compiler flags
 209 # $4 additional dependencies
 210 ifn$(EMPTY)def $(1)-objs_$(2)_template
 211 de$(EMPTY)fine $(1)-objs_$(2)_template
 212 $(obj)/$$(1).$(1).o: src/$$(1).$(2) $(obj)/config.h $(4)
 213         @printf "    CC         $$$$(subst $$$$(obj)/,,$$$$(@))\n"
 214         $(CC) $(3) -MMD $$$$(CFLAGS) -c -o $$$$@ $$$$<
 215 en$(EMPTY)def
 216 end$(EMPTY)if
 217 endef
 218
 219 filetypes-of-class=$(subst .,,$(sort $(suffix $($(1)-srcs))))
 220 $(foreach class,$(classes), \
 221         $(foreach type,$(call filetypes-of-class,$(class)), \
 222                 $(eval $(call create_cc_template,$(class),$(type),$($(class)-$(type)-ccopts),$($(class)-$(type)-deps)))))
 223
 224 foreach-src=$(foreach file,$($(1)-srcs),$(eval $(call $(1)-objs_$(subst .,,$(suffix $(file)))_template,$(subst src/,,$(basename $(file))))))
 225 $(eval $(foreach class,$(classes),$(call foreach-src,$(class))))
 226
 227 DEPENDENCIES = $(allobjs:.o=.d)
 228 -include $(DEPENDENCIES)
 229
 230 printall:
 231         @$(foreach class,$(classes),echo $(class)-objs:=$($(class)-objs); )
 232         @echo alldirs:=$(alldirs)
 233         @echo allsrcs=$(allsrcs)
 234         @echo DEPENDENCIES=$(DEPENDENCIES)
 235         @echo LIBGCC_FILE_NAME=$(LIBGCC_FILE_NAME)
 236         @$(foreach class,$(special-classes),echo $(class):='$($(class))'; )
 237
 238 endif
 239
 240 ifndef NOMKDIR
 241 $(shell mkdir -p $(obj) $(objutil)/kconfig/lxdialog $(additional-dirs) $(alldirs))
 242 endif
 243
 244 cscope:
 245         cscope -bR
 246
 247 doxy: doxygen
 248 doxygen:
 249         $(DOXYGEN) documentation/Doxyfile.coreboot
 250
 251 doxyclean: doxygen-clean
 252 doxygen-clean:
 253         rm -rf $(DOXYGEN_OUTPUT_DIR)
 254
 255 clean-for-update: doxygen-clean clean-for-update-target
 256         rm -f $(allobjs) .xcompile
 257         rm -f $(DEPENDENCIES)
 258         rmdir -p $(alldirs) 2>/dev/null >/dev/null || true
 259
 260 clean: clean-for-update clean-target
 261         rm -f .ccwrap
 262
 263 clean-cscope:
 264         rm -f cscope.out
 265
 266 distclean: clean-cscope
 267         rm -rf $(obj)
 268         rm -f .config .config.old ..config.tmp .kconfig.d .tmpconfig* .ccwrap .xcompile
 269
 270 .PHONY: $(PHONY) clean clean-cscope cscope distclean doxygen doxy .xcompile