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 export top := $(CURDIR)
  38 export src := src
  39 export srck := $(abspath $(top)/../../util/kconfig)
  40 export obj ?= build
  41 export objutil ?= $(obj)/util
  42 export objk := $(objutil)/lp_kconfig
  43
  44 export KCONFIG_AUTOHEADER := $(obj)/config.h
  45 export KCONFIG_AUTOCONFIG := $(obj)/auto.conf
  46 export KCONFIG_DEPENDENCIES := $(obj)/auto.conf.cmd
  47 export KCONFIG_SPLITCONFIG := $(obj)/config
  48 export KCONFIG_TRISTATE := $(obj)/tristate.conf
  49 export KCONFIG_NEGATIVES := 1
  50 export Kconfig := Kconfig
  51 export CONFIG_ := CONFIG_LP_
  52
  53 # directory containing the toplevel Makefile.inc
  54 TOPLEVEL := .
  55
  56 CONFIG_LP_SHELL := sh
  57 KBUILD_DEFCONFIG ?= configs/defconfig
  58 UNAME_RELEASE := $(shell uname -r)
  59 DOTCONFIG ?= .config
  60 KCONFIG_CONFIG = $(DOTCONFIG)
  61 export KCONFIG_CONFIG
  62 HAVE_DOTCONFIG := $(wildcard $(DOTCONFIG))
  63 MAKEFLAGS += -rR --no-print-directory
  64
  65 # Make is silent per default, but 'make V=1' will show all compiler calls.
  66 Q:=@
  67 ifneq ($(V),1)
  68 ifneq ($(Q),)
  69 .SILENT:
  70 endif
  71 endif
  72
  73 CPP:= $(CC) -x assembler-with-cpp -DASSEMBLY -E
  74 HOSTCC = gcc
  75 HOSTCXX = g++
  76 HOSTCFLAGS := -I$(srck) -I$(objk) -g
  77 HOSTCXXFLAGS := -I$(srck) -I$(objk)
  78
  79 DOXYGEN := doxygen
  80 DOXYGEN_OUTPUT_DIR := doxygen
  81
  82 all: real-all
  83
  84 ifeq ($(INNER_SCANBUILD),y)
  85 CC:=$(CC_real)
  86 HOSTCC:=$(CC_real) --hostcc
  87 HOSTCXX:=$(CC_real) --hostcxx
  88 endif
  89
  90 # This include must come _before_ the pattern rules below!
  91 # Order _does_ matter for pattern rules.
  92 include $(srck)/Makefile
  93
  94 include $(HAVE_DOTCONFIG)
  95
  96 ARCHDIR-$(CONFIG_LP_ARCH_ARM)     := arm
  97 ARCHDIR-$(CONFIG_LP_ARCH_ARM64)   := arm64
  98 ARCHDIR-$(CONFIG_LP_ARCH_X86)     := x86
  99
 100 ARCH-y := $(ARCHDIR-y)
 101
 102 # If architecture folder name is different from xcompile architecture name,
 103 # override here.
 104 ARCH-$(CONFIG_LP_ARCH_ARM)     := arm
 105 ARCH-$(CONFIG_LP_ARCH_ARM64)   := arm64
 106 ARCH-$(CONFIG_LP_ARCH_X86)     := x86_32
 107
 108 # Three cases where we don't need fully populated $(obj) lists:
 109 # 1. when no .config exists
 110 # 2. when make config (in any flavour) is run
 111 # 3. when make distclean is run
 112 # Don't waste time on reading all Makefile.incs in these cases
 113 ifeq ($(strip $(HAVE_DOTCONFIG)),)
 114 NOCOMPILE:=1
 115 endif
 116 ifneq ($(MAKECMDGOALS),)
 117 ifneq ($(filter %config %clean,$(MAKECMDGOALS)),)
 118 NOCOMPILE:=1
 119 endif
 120 endif
 121
 122 ifeq ($(NOCOMPILE),1)
 123 include $(TOPLEVEL)/Makefile.inc
 124 real-all: config
 125
 126 else
 127
 128 # in addition to the dependency below, create the file if it doesn't exist
 129 # to silence stupid warnings about a file that would be generated anyway.
 130 $(if $(wildcard .xcompile)$(NOCOMPILE),,$(eval $(shell $(top)/../../util/xcompile/xcompile $(XGCCPATH) > .xcompile)))
 131
 132 .xcompile: $(top)/../../util/xcompile/xcompile
 133         $< $(XGCCPATH) > $@.tmp
 134         \mv -f $@.tmp $@ 2> /dev/null
 135
 136 -include .xcompile
 137
 138 CC := $(CC_$(ARCH-y))
 139 AS := $(AS_$(ARCH-y))
 140 LD := $(LD_$(ARCH-y))
 141 NM := $(NM_$(ARCH-y))
 142 OBJCOPY := $(OBJCOPY_$(ARCH-y))
 143 OBJDUMP := $(OBJDUMP_$(ARCH-y))
 144 READELF := $(READELF_$(ARCH-y))
 145 STRIP := $(STRIP_$(ARCH-y))
 146 AR := $(AR_$(ARCH-y))
 147
 148 CFLAGS += -std=gnu11 $(CFLAGS_$(ARCH-y))
 149
 150 ifneq ($(INNER_SCANBUILD),y)
 151 ifeq ($(CONFIG_LP_COMPILER_LLVM_CLANG),y)
 152 CC:=clang -m32
 153 HOSTCC:=clang
 154 endif
 155 endif
 156
 157 ifeq ($(CONFIG_LP_CCACHE),y)
 158 CCACHE:=$(word 1,$(wildcard $(addsuffix /ccache,$(subst :, ,$(PATH)))))
 159 ifeq ($(CCACHE),)
 160 $(error ccache selected, but not found in PATH)
 161 endif
 162 CCACHE:=CCACHE_COMPILERCHECK=content CCACHE_BASEDIR=$(top) $(CCACHE)
 163 CC := $(CCACHE) $(CC)
 164 HOSTCC := $(CCACHE) $(HOSTCC)
 165 HOSTCXX := $(CCACHE) $(HOSTCXX)
 166 endif
 167
 168 strip_quotes = $(subst ",,$(subst \",,$(1)))
 169
 170 # The primary target needs to be here before we include the
 171 # other files
 172
 173 ifeq ($(INNER_SCANBUILD),y)
 174 CONFIG_LP_SCANBUILD_ENABLE:=
 175 endif
 176
 177 ifeq ($(CONFIG_LP_SCANBUILD_ENABLE),y)
 178 ifneq ($(CONFIG_LP_SCANBUILD_REPORT_LOCATION),)
 179 CONFIG_LP_SCANBUILD_REPORT_LOCATION:=-o $(CONFIG_LP_SCANBUILD_REPORT_LOCATION)
 180 endif
 181 real-all:
 182         echo '#!/bin/sh' > .ccwrap
 183         echo 'CC="$(CC)"' >> .ccwrap
 184         echo 'if [ "$$1" = "--hostcc" ]; then shift; CC="$(HOSTCC)"; fi' >> .ccwrap
 185         echo 'if [ "$$1" = "--hostcxx" ]; then shift; CC="$(HOSTCXX)"; fi' >> .ccwrap
 186         echo 'eval $$CC $$*' >> .ccwrap
 187         chmod +x .ccwrap
 188         scan-build $(CONFIG_LP_SCANBUILD_REPORT_LOCATION) -analyze-headers --use-cc=$(top)/.ccwrap --use-c++=$(top)/.ccwrap $(MAKE) INNER_SCANBUILD=y
 189 else
 190 real-all: real-target
 191 endif
 192
 193 # must come rather early
 194 .SECONDEXPANSION:
 195
 196 $(KCONFIG_AUTOHEADER): $(KCONFIG_CONFIG)
 197         $(MAKE) oldconfig
 198
 199 # Add a new class of source/object files to the build system
 200 add-class= \
 201         $(eval $(1)-srcs:=) \
 202         $(eval $(1)-objs:=) \
 203         $(eval classes+=$(1))
 204
 205 # Special classes are managed types with special behaviour
 206 # On parse time, for each entry in variable $(1)-y
 207 # a handler $(1)-handler is executed with the arguments:
 208 # * $(1): directory the parser is in
 209 # * $(2): current entry
 210 add-special-class= \
 211         $(eval $(1):=) \
 212         $(eval special-classes+=$(1))
 213
 214 # Clean -y variables, include Makefile.inc
 215 # Add paths to files in X-y to X-srcs
 216 # Add subdirs-y to subdirs
 217 includemakefiles= \
 218         $(foreach class,classes subdirs $(classes) $(special-classes), $(eval $(class)-y:=)) \
 219         $(eval -include $(1)) \
 220         $(foreach class,$(classes-y), $(call add-class,$(class))) \
 221         $(foreach special,$(special-classes), \
 222                 $(foreach item,$($(special)-y), $(call $(special)-handler,$(dir $(1)),$(item)))) \
 223         $(foreach class,$(classes), \
 224                 $(eval $(class)-srcs+= \
 225                         $$(subst $(top)/,, \
 226                         $$(abspath $$(addprefix $(dir $(1)),$$($(class)-y)))))) \
 227         $(eval subdirs+=$$(subst $(CURDIR)/,,$$(abspath $$(addprefix $(dir $(1)),$$(subdirs-y)))))
 228
 229 # For each path in $(subdirs) call includemakefiles
 230 # Repeat until subdirs is empty
 231 evaluate_subdirs= \
 232         $(eval cursubdirs:=$(subdirs)) \
 233         $(eval subdirs:=) \
 234         $(foreach dir,$(cursubdirs), \
 235                 $(eval $(call includemakefiles,$(dir)/Makefile.inc))) \
 236         $(if $(subdirs),$(eval $(call evaluate_subdirs)))
 237
 238 # collect all object files eligible for building
 239 subdirs:=$(TOPLEVEL)
 240 $(eval $(call evaluate_subdirs))
 241
 242 src-to-obj=$(addsuffix .$(1).o, $(basename $(addprefix $(obj)/, $($(1)-srcs))))
 243 $(foreach class,$(classes),$(eval $(class)-objs:=$(call src-to-obj,$(class))))
 244
 245 allsrcs:=$(foreach var, $(addsuffix -srcs,$(classes)), $($(var)))
 246 allobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))
 247 alldirs:=$(sort $(abspath $(dir $(allobjs))))
 248
 249 # macro to define template macros that are used by use_template macro
 250 define create_cc_template
 251 # $1 obj class
 252 # $2 source suffix (c, S)
 253 # $3 additional compiler flags
 254 # $4 additional dependencies
 255 ifn$(EMPTY)def $(1)-objs_$(2)_template
 256 de$(EMPTY)fine $(1)-objs_$(2)_template
 257 $(obj)/$$(1).$(1).o: $$(1).$(2) $(obj)/libpayload-config.h $(4)
 258         @printf "    CC         $$$$(subst $$$$(obj)/,,$$$$(@))\n"
 259         $(CC) $(3) -MMD $$$$(CFLAGS) -c -o $$$$@ $$$$<
 260 en$(EMPTY)def
 261 end$(EMPTY)if
 262 endef
 263
 264 filetypes-of-class=$(subst .,,$(sort $(suffix $($(1)-srcs))))
 265 $(foreach class,$(classes), \
 266         $(foreach type,$(call filetypes-of-class,$(class)), \
 267                 $(eval $(call create_cc_template,$(class),$(type),$($(class)-$(type)-ccopts),$($(class)-$(type)-deps)))))
 268
 269 foreach-src=$(foreach file,$($(1)-srcs),$(eval $(call $(1)-objs_$(subst .,,$(suffix $(file)))_template,$(basename $(file)))))
 270 $(eval $(foreach class,$(classes),$(call foreach-src,$(class))))
 271
 272 DEPENDENCIES = $(allobjs:.o=.d)
 273 -include $(DEPENDENCIES)
 274
 275 printall:
 276         @$(foreach class,$(classes),echo $(class)-objs:=$($(class)-objs); )
 277         @echo alldirs:=$(alldirs)
 278         @echo allsrcs=$(allsrcs)
 279         @echo DEPENDENCIES=$(DEPENDENCIES)
 280         @$(foreach class,$(special-classes),echo $(class):='$($(class))'; )
 281
 282 endif
 283
 284 $(shell mkdir -p $(KCONFIG_SPLITCONFIG) $(obj) $(objk)/lxdialog $(additional-dirs) $(alldirs))
 285
 286 cscope:
 287         cscope -bR
 288
 289 doxy: doxygen
 290 doxygen:
 291         $(DOXYGEN) Doxyfile
 292
 293 doxyclean: doxygen-clean
 294 doxygen-clean:
 295         rm -rf $(DOXYGEN_OUTPUT_DIR)
 296
 297 clean-for-update: doxygen-clean clean-for-update-target
 298         rm -f $(allobjs) .xcompile
 299         rm -f $(DEPENDENCIES)
 300         rmdir -p $(alldirs) 2>/dev/null >/dev/null || true
 301
 302 clean: clean-for-update clean-target
 303         rm -f .ccwrap junit_config junit_config.old
 304         rm -rf $(obj)
 305
 306 clean-cscope:
 307         rm -f cscope.out
 308
 309 distclean: clean-cscope clean
 310         rm -f .config .config.old ..config.tmp .kconfig.d .tmpconfig* .ccwrap .xcompile junit.xml
 311
 312 .PHONY: $(PHONY) clean clean-cscope cscope distclean doxygen doxy