payloads/libpayload/Makefile

   1 ##
   2 ## This file is part of the libpayload 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 ## Redistribution and use in source and binary forms, with or without
  10 ## modification, are permitted provided that the following conditions
  11 ## are met:
  12 ## 1. Redistributions of source code must retain the above copyright
  13 ##    notice, this list of conditions and the following disclaimer.
  14 ## 2. Redistributions in binary form must reproduce the above copyright
  15 ##    notice, this list of conditions and the following disclaimer in the
  16 ##    documentation and/or other materials provided with the distribution.
  17 ## 3. The name of the author may not be used to endorse or promote products
  18 ##    derived from this software without specific prior written permission.
  19 ##
  20 ## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  21 ## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22 ## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23 ## ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  24 ## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25 ## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26 ## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27 ## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28 ## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29 ## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30 ## SUCH DAMAGE.
  31 ##
  32
  33 ifeq ($(INNER_SCANBUILD),y)
  34 CC_real:=$(CC)
  35 endif
  36
  37 $(if $(wildcard .xcompile),,$(eval $(shell bash util/xcompile/xcompile > .xcompile)))
  38 include .xcompile
  39
  40 ifeq ($(INNER_SCANBUILD),y)
  41 CC:=$(CC_real)
  42 HOSTCC:=$(CC_real) --hostcc
  43 HOSTCXX:=$(CC_real) --hostcxx
  44 endif
  45
  46 export top := $(CURDIR)
  47 export src := src
  48 export srck := $(top)/util/kconfig
  49 export obj ?= build
  50 export objutil ?= $(obj)/util
  51 export objk := $(objutil)/lp_kconfig
  52
  53
  54 export KCONFIG_AUTOHEADER := $(obj)/config.h
  55 export KCONFIG_AUTOCONFIG := $(obj)/auto.conf
  56
  57 # directory containing the toplevel Makefile.inc
  58 TOPLEVEL := .
  59
  60 CONFIG_LP_SHELL := sh
  61 KBUILD_DEFCONFIG := configs/defconfig
  62 UNAME_RELEASE := $(shell uname -r)
  63 DOTCONFIG ?= .config
  64 KCONFIG_CONFIG = $(DOTCONFIG)
  65 export KCONFIG_CONFIG
  66 HAVE_DOTCONFIG := $(wildcard $(DOTCONFIG))
  67 MAKEFLAGS += -rR --no-print-directory
  68
  69 # Make is silent per default, but 'make V=1' will show all compiler calls.
  70 Q:=@
  71 ifneq ($(V),1)
  72 ifneq ($(Q),)
  73 .SILENT:
  74 endif
  75 endif
  76
  77 CPP:= $(CC) -x assembler-with-cpp -DASSEMBLY -E
  78 HOSTCC = gcc
  79 HOSTCXX = g++
  80 HOSTCFLAGS := -I$(srck) -I$(objk) -g
  81 HOSTCXXFLAGS := -I$(srck) -I$(objk)
  82
  83 DOXYGEN := doxygen
  84 DOXYGEN_OUTPUT_DIR := doxygen
  85
  86 all: real-all
  87
  88 # This include must come _before_ the pattern rules below!
  89 # Order _does_ matter for pattern rules.
  90 include util/kconfig/Makefile
  91
  92 include $(HAVE_DOTCONFIG)
  93
  94 ARCHDIR-$(CONFIG_LP_ARCH_ARM)     := arm
  95 ARCHDIR-$(CONFIG_LP_ARCH_X86)     := x86
  96
  97 ARCH-y := $(ARCHDIR-y)
  98
  99 # If architecture folder name is different from GCC binutils architecture name,
 100 # override here.
 101 ARCH-$(CONFIG_LP_ARCH_ARM)     := arm
 102 ARCH-$(CONFIG_LP_ARCH_X86)     := i386
 103
 104 CC := $(CC_$(ARCH-y))
 105 AS := $(AS_$(ARCH-y))
 106 LD := $(LD_$(ARCH-y))
 107 NM := $(NM_$(ARCH-y))
 108 OBJCOPY := $(OBJCOPY_$(ARCH-y))
 109 OBJDUMP := $(OBJDUMP_$(ARCH-y))
 110 READELF := $(READELF_$(ARCH-y))
 111 STRIP := $(STRIP_$(ARCH-y))
 112 AR := $(AR_$(ARCH-y))
 113
 114 CFLAGS += $(CFLAGS_$(ARCH-y))
 115
 116 LIBGCC_FILE_NAME := $(shell test -r `$(CC) -print-libgcc-file-name` && \
 117                       $(CC) -print-libgcc-file-name)
 118
 119 # Three cases where we don't need fully populated $(obj) lists:
 120 # 1. when no .config exists
 121 # 2. when make config (in any flavour) is run
 122 # 3. when make distclean is run
 123 # Don't waste time on reading all Makefile.incs in these cases
 124 ifeq ($(strip $(HAVE_DOTCONFIG)),)
 125 NOCOMPILE:=1
 126 endif
 127 ifneq ($(MAKECMDGOALS),)
 128 ifneq ($(filter %config distclean,$(MAKECMDGOALS)),)
 129 NOCOMPILE:=1
 130 endif
 131 endif
 132
 133 ifeq ($(NOCOMPILE),1)
 134 include $(TOPLEVEL)/Makefile.inc
 135 real-all: config
 136
 137 else
 138
 139 ifneq ($(INNER_SCANBUILD),y)
 140 ifeq ($(CONFIG_LP_COMPILER_LLVM_CLANG),y)
 141 CC:=clang -m32
 142 HOSTCC:=clang
 143 endif
 144 endif
 145
 146 ifeq ($(CONFIG_LP_CCACHE),y)
 147 CCACHE:=$(word 1,$(wildcard $(addsuffix /ccache,$(subst :, ,$(PATH)))))
 148 ifeq ($(CCACHE),)
 149 $(error ccache selected, but not found in PATH)
 150 endif
 151 CCACHE:=CCACHE_COMPILERCHECK=content CCACHE_BASEDIR=$(top) $(CCACHE)
 152 CC := $(CCACHE) $(CC)
 153 HOSTCC := $(CCACHE) $(HOSTCC)
 154 HOSTCXX := $(CCACHE) $(HOSTCXX)
 155 ROMCC := $(CCACHE) $(ROMCC)
 156 endif
 157
 158 strip_quotes = $(subst ",,$(subst \",,$(1)))
 159
 160 # The primary target needs to be here before we include the
 161 # other files
 162
 163 ifeq ($(INNER_SCANBUILD),y)
 164 CONFIG_LP_SCANBUILD_ENABLE:=
 165 endif
 166
 167 ifeq ($(CONFIG_LP_SCANBUILD_ENABLE),y)
 168 ifneq ($(CONFIG_LP_SCANBUILD_REPORT_LOCATION),)
 169 CONFIG_LP_SCANBUILD_REPORT_LOCATION:=-o $(CONFIG_LP_SCANBUILD_REPORT_LOCATION)
 170 endif
 171 real-all:
 172         echo '#!/bin/sh' > .ccwrap
 173         echo 'CC="$(CC)"' >> .ccwrap
 174         echo 'if [ "$$1" = "--hostcc" ]; then shift; CC="$(HOSTCC)"; fi' >> .ccwrap
 175         echo 'if [ "$$1" = "--hostcxx" ]; then shift; CC="$(HOSTCXX)"; fi' >> .ccwrap
 176         echo 'eval $$CC $$*' >> .ccwrap
 177         chmod +x .ccwrap
 178         scan-build $(CONFIG_LP_SCANBUILD_REPORT_LOCATION) -analyze-headers --use-cc=$(top)/.ccwrap --use-c++=$(top)/.ccwrap $(MAKE) INNER_SCANBUILD=y
 179 else
 180 real-all: real-target
 181 endif
 182
 183 # must come rather early
 184 .SECONDEXPANSION:
 185
 186 $(obj)/config.h:
 187         $(MAKE) oldconfig
 188
 189 # Add a new class of source/object files to the build system
 190 add-class= \
 191         $(eval $(1)-srcs:=) \
 192         $(eval $(1)-objs:=) \
 193         $(eval classes+=$(1))
 194
 195 # Special classes are managed types with special behaviour
 196 # On parse time, for each entry in variable $(1)-y
 197 # a handler $(1)-handler is executed with the arguments:
 198 # * $(1): directory the parser is in
 199 # * $(2): current entry
 200 add-special-class= \
 201         $(eval $(1):=) \
 202         $(eval special-classes+=$(1))
 203
 204 # Clean -y variables, include Makefile.inc
 205 # Add paths to files in X-y to X-srcs
 206 # Add subdirs-y to subdirs
 207 includemakefiles= \
 208         $(foreach class,classes subdirs $(classes) $(special-classes), $(eval $(class)-y:=)) \
 209         $(eval -include $(1)) \
 210         $(foreach class,$(classes-y), $(call add-class,$(class))) \
 211         $(foreach class,$(classes), \
 212                 $(eval $(class)-srcs+= \
 213                         $$(subst $(top)/,, \
 214                         $$(abspath $$(addprefix $(dir $(1)),$$($(class)-y)))))) \
 215         $(foreach special,$(special-classes), \
 216                 $(foreach item,$($(special)-y), $(call $(special)-handler,$(dir $(1)),$(item)))) \
 217         $(eval subdirs+=$$(subst $(CURDIR)/,,$$(abspath $$(addprefix $(dir $(1)),$$(subdirs-y)))))
 218
 219 # For each path in $(subdirs) call includemakefiles
 220 # Repeat until subdirs is empty
 221 evaluate_subdirs= \
 222         $(eval cursubdirs:=$(subdirs)) \
 223         $(eval subdirs:=) \
 224         $(foreach dir,$(cursubdirs), \
 225                 $(eval $(call includemakefiles,$(dir)/Makefile.inc))) \
 226         $(if $(subdirs),$(eval $(call evaluate_subdirs)))
 227
 228 # collect all object files eligible for building
 229 subdirs:=$(TOPLEVEL)
 230 $(eval $(call evaluate_subdirs))
 231
 232 src-to-obj=$(addsuffix .$(1).o, $(basename $(addprefix $(obj)/, $($(1)-srcs))))
 233 $(foreach class,$(classes),$(eval $(class)-objs:=$(call src-to-obj,$(class))))
 234
 235 allsrcs:=$(foreach var, $(addsuffix -srcs,$(classes)), $($(var)))
 236 allobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))
 237 alldirs:=$(sort $(abspath $(dir $(allobjs))))
 238
 239 # macro to define template macros that are used by use_template macro
 240 define create_cc_template
 241 # $1 obj class
 242 # $2 source suffix (c, S)
 243 # $3 additional compiler flags
 244 # $4 additional dependencies
 245 ifn$(EMPTY)def $(1)-objs_$(2)_template
 246 de$(EMPTY)fine $(1)-objs_$(2)_template
 247 $(obj)/$$(1).$(1).o: $$(1).$(2) $(obj)/libpayload-config.h $(4)
 248         @printf "    CC         $$$$(subst $$$$(obj)/,,$$$$(@))\n"
 249         $(CC) $(3) -MMD $$$$(CFLAGS) -c -o $$$$@ $$$$<
 250 en$(EMPTY)def
 251 end$(EMPTY)if
 252 endef
 253
 254 filetypes-of-class=$(subst .,,$(sort $(suffix $($(1)-srcs))))
 255 $(foreach class,$(classes), \
 256         $(foreach type,$(call filetypes-of-class,$(class)), \
 257                 $(eval $(call create_cc_template,$(class),$(type),$($(class)-$(type)-ccopts),$($(class)-$(type)-deps)))))
 258
 259 foreach-src=$(foreach file,$($(1)-srcs),$(eval $(call $(1)-objs_$(subst .,,$(suffix $(file)))_template,$(basename $(file)))))
 260 $(eval $(foreach class,$(classes),$(call foreach-src,$(class))))
 261
 262 DEPENDENCIES = $(allobjs:.o=.d)
 263 -include $(DEPENDENCIES)
 264
 265 printall:
 266         @$(foreach class,$(classes),echo $(class)-objs:=$($(class)-objs); )
 267         @echo alldirs:=$(alldirs)
 268         @echo allsrcs=$(allsrcs)
 269         @echo DEPENDENCIES=$(DEPENDENCIES)
 270         @echo LIBGCC_FILE_NAME=$(LIBGCC_FILE_NAME)
 271         @$(foreach class,$(special-classes),echo $(class):='$($(class))'; )
 272
 273 endif
 274
 275 $(shell mkdir -p $(obj) $(objk)/lxdialog $(additional-dirs) $(alldirs))
 276
 277 cscope:
 278         cscope -bR
 279
 280 doxy: doxygen
 281 doxygen:
 282         $(DOXYGEN) Doxyfile
 283
 284 doxyclean: doxygen-clean
 285 doxygen-clean:
 286         rm -rf $(DOXYGEN_OUTPUT_DIR)
 287
 288 clean-for-update: doxygen-clean clean-for-update-target
 289         rm -f $(allobjs) .xcompile
 290         rm -f $(DEPENDENCIES)
 291         rmdir -p $(alldirs) 2>/dev/null >/dev/null || true
 292
 293 clean: clean-for-update clean-target
 294         rm -f .ccwrap
 295
 296 clean-cscope:
 297         rm -f cscope.out
 298
 299 distclean: clean-cscope
 300         rm -rf $(obj)
 301         rm -f .config .config.old ..config.tmp .kconfig.d .tmpconfig* .ccwrap .xcompile
 302
 303 .PHONY: $(PHONY) clean clean-cscope cscope distclean doxygen doxy .xcompile