payloads/libpayload/Makefile

   1 ##
   2 ##
   3 ## Copyright (C) 2008 Advanced Micro Devices, Inc.
   4 ## Copyright (C) 2008 Uwe Hermann <uwe@hermann-uwe.de>
   5 ## Copyright (C) 2009-2010 coresystems GmbH
   6 ## Copyright (C) 2011 secunet Security Networks AG
   7 ##
   8 ## Redistribution and use in source and binary forms, with or without
   9 ## modification, are permitted provided that the following conditions
  10 ## are met:
  11 ## 1. Redistributions of source code must retain the above copyright
  12 ##    notice, this list of conditions and the following disclaimer.
  13 ## 2. Redistributions in binary form must reproduce the above copyright
  14 ##    notice, this list of conditions and the following disclaimer in the
  15 ##    documentation and/or other materials provided with the distribution.
  16 ## 3. The name of the author may not be used to endorse or promote products
  17 ##    derived from this software without specific prior written permission.
  18 ##
  19 ## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  20 ## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21 ## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22 ## ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  23 ## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24 ## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25 ## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26 ## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27 ## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28 ## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29 ## SUCH DAMAGE.
  30 ##
  31
  32 ifeq ($(INNER_SCANBUILD),y)
  33 CC_real:=$(CC)
  34 endif
  35
  36 export top := $(CURDIR)
  37 export src := src
  38 export srck := $(abspath $(top)/../../util/kconfig)
  39 export obj ?= build
  40 export objutil ?= $(obj)/util
  41 export objk := $(objutil)/lp_kconfig
  42
  43 export KCONFIG_AUTOHEADER := $(obj)/config.h
  44 export KCONFIG_AUTOCONFIG := $(obj)/auto.conf
  45 export KCONFIG_DEPENDENCIES := $(obj)/auto.conf.cmd
  46 export KCONFIG_SPLITCONFIG := $(obj)/config
  47 export KCONFIG_TRISTATE := $(obj)/tristate.conf
  48 export KCONFIG_NEGATIVES := 1
  49 export Kconfig := Kconfig
  50 export CONFIG_ := CONFIG_LP_
  51
  52 # directory containing the toplevel Makefile.inc
  53 TOPLEVEL := .
  54
  55 CONFIG_LP_SHELL := sh
  56 KBUILD_DEFCONFIG ?= configs/defconfig
  57 UNAME_RELEASE := $(shell uname -r)
  58 DOTCONFIG ?= .config
  59 KCONFIG_CONFIG = $(DOTCONFIG)
  60 export KCONFIG_CONFIG
  61 HAVE_DOTCONFIG := $(wildcard $(DOTCONFIG))
  62 MAKEFLAGS += -rR --no-print-directory
  63
  64 # Make is silent per default, but 'make V=1' will show all compiler calls.
  65 Q:=@
  66 ifneq ($(V),1)
  67 ifneq ($(Q),)
  68 .SILENT:
  69 endif
  70 endif
  71
  72 CPP:= $(CC) -x assembler-with-cpp -DASSEMBLY -E
  73 HOSTCC = gcc
  74 HOSTCXX = g++
  75 HOSTCFLAGS := -I$(srck) -I$(objk) -g
  76 HOSTCXXFLAGS := -I$(srck) -I$(objk)
  77
  78 DOXYGEN := doxygen
  79 DOXYGEN_OUTPUT_DIR := doxygen
  80
  81 all: real-all
  82
  83 ifeq ($(INNER_SCANBUILD),y)
  84 CC:=$(CC_real)
  85 HOSTCC:=$(CC_real) --hostcc
  86 HOSTCXX:=$(CC_real) --hostcxx
  87 endif
  88
  89 # This include must come _before_ the pattern rules below!
  90 # Order _does_ matter for pattern rules.
  91 include $(srck)/Makefile
  92
  93 include $(HAVE_DOTCONFIG)
  94
  95 ARCHDIR-$(CONFIG_LP_ARCH_ARM)     := arm
  96 ARCHDIR-$(CONFIG_LP_ARCH_ARM64)   := arm64
  97 ARCHDIR-$(CONFIG_LP_ARCH_X86)     := x86
  98
  99 ARCH-y := $(ARCHDIR-y)
 100
 101 # If architecture folder name is different from xcompile architecture name,
 102 # override here.
 103 ARCH-$(CONFIG_LP_ARCH_ARM)     := arm
 104 ARCH-$(CONFIG_LP_ARCH_ARM64)   := arm64
 105 ARCH-$(CONFIG_LP_ARCH_X86)     := x86_32
 106
 107 # Three cases where we don't need fully populated $(obj) lists:
 108 # 1. when no .config exists
 109 # 2. when make config (in any flavour) is run
 110 # 3. when make distclean is run
 111 # Don't waste time on reading all Makefile.incs in these cases
 112 ifeq ($(strip $(HAVE_DOTCONFIG)),)
 113 NOCOMPILE:=1
 114 endif
 115 ifneq ($(MAKECMDGOALS),)
 116 ifneq ($(filter %config %clean,$(MAKECMDGOALS)),)
 117 NOCOMPILE:=1
 118 endif
 119 endif
 120
 121 ifeq ($(NOCOMPILE),1)
 122 include $(TOPLEVEL)/Makefile.inc
 123 real-all: config
 124
 125 else
 126
 127 # in addition to the dependency below, create the file if it doesn't exist
 128 # to silence stupid warnings about a file that would be generated anyway.
 129 $(if $(wildcard .xcompile)$(NOCOMPILE),,$(eval $(shell $(top)/../../util/xcompile/xcompile $(XGCCPATH) > .xcompile)))
 130
 131 .xcompile: $(top)/../../util/xcompile/xcompile
 132         $< $(XGCCPATH) > $@.tmp
 133         \mv -f $@.tmp $@ 2> /dev/null
 134
 135 -include .xcompile
 136
 137 CC := $(CC_$(ARCH-y))
 138 AS := $(AS_$(ARCH-y))
 139 LD := $(LD_$(ARCH-y))
 140 NM := $(NM_$(ARCH-y))
 141 OBJCOPY := $(OBJCOPY_$(ARCH-y))
 142 OBJDUMP := $(OBJDUMP_$(ARCH-y))
 143 READELF := $(READELF_$(ARCH-y))
 144 STRIP := $(STRIP_$(ARCH-y))
 145 AR := $(AR_$(ARCH-y))
 146
 147 CFLAGS += -std=gnu11 $(CFLAGS_$(ARCH-y))
 148
 149 ifneq ($(INNER_SCANBUILD),y)
 150 ifeq ($(CONFIG_LP_COMPILER_LLVM_CLANG),y)
 151 CC:=clang -m32
 152 HOSTCC:=clang
 153 endif
 154 endif
 155
 156 ifeq ($(CONFIG_LP_CCACHE),y)
 157 CCACHE:=$(word 1,$(wildcard $(addsuffix /ccache,$(subst :, ,$(PATH)))))
 158 ifeq ($(CCACHE),)
 159 $(error ccache selected, but not found in PATH)
 160 endif
 161 CCACHE:=CCACHE_COMPILERCHECK=content CCACHE_BASEDIR=$(top) $(CCACHE)
 162 CC := $(CCACHE) $(CC)
 163 HOSTCC := $(CCACHE) $(HOSTCC)
 164 HOSTCXX := $(CCACHE) $(HOSTCXX)
 165 endif
 166
 167 strip_quotes = $(subst ",,$(subst \",,$(1)))
 168
 169 # The primary target needs to be here before we include the
 170 # other files
 171
 172 ifeq ($(INNER_SCANBUILD),y)
 173 CONFIG_LP_SCANBUILD_ENABLE:=
 174 endif
 175
 176 ifeq ($(CONFIG_LP_SCANBUILD_ENABLE),y)
 177 ifneq ($(CONFIG_LP_SCANBUILD_REPORT_LOCATION),)
 178 CONFIG_LP_SCANBUILD_REPORT_LOCATION:=-o $(CONFIG_LP_SCANBUILD_REPORT_LOCATION)
 179 endif
 180 real-all:
 181         echo '#!/bin/sh' > .ccwrap
 182         echo 'CC="$(CC)"' >> .ccwrap
 183         echo 'if [ "$$1" = "--hostcc" ]; then shift; CC="$(HOSTCC)"; fi' >> .ccwrap
 184         echo 'if [ "$$1" = "--hostcxx" ]; then shift; CC="$(HOSTCXX)"; fi' >> .ccwrap
 185         echo 'eval $$CC $$*' >> .ccwrap
 186         chmod +x .ccwrap
 187         scan-build $(CONFIG_LP_SCANBUILD_REPORT_LOCATION) -analyze-headers --use-cc=$(top)/.ccwrap --use-c++=$(top)/.ccwrap $(MAKE) INNER_SCANBUILD=y
 188 else
 189 real-all: real-target
 190 endif
 191
 192 # must come rather early
 193 .SECONDEXPANSION:
 194
 195 $(KCONFIG_AUTOHEADER): $(KCONFIG_CONFIG)
 196         $(MAKE) oldconfig
 197
 198 # Add a new class of source/object files to the build system
 199 add-class= \
 200         $(eval $(1)-srcs:=) \
 201         $(eval $(1)-objs:=) \
 202         $(eval classes+=$(1))
 203
 204 # Special classes are managed types with special behaviour
 205 # On parse time, for each entry in variable $(1)-y
 206 # a handler $(1)-handler is executed with the arguments:
 207 # * $(1): directory the parser is in
 208 # * $(2): current entry
 209 add-special-class= \
 210         $(eval $(1):=) \
 211         $(eval special-classes+=$(1))
 212
 213 # Clean -y variables, include Makefile.inc
 214 # Add paths to files in X-y to X-srcs
 215 # Add subdirs-y to subdirs
 216 includemakefiles= \
 217         $(foreach class,classes subdirs $(classes) $(special-classes), $(eval $(class)-y:=)) \
 218         $(eval -include $(1)) \
 219         $(foreach class,$(classes-y), $(call add-class,$(class))) \
 220         $(foreach special,$(special-classes), \
 221                 $(foreach item,$($(special)-y), $(call $(special)-handler,$(dir $(1)),$(item)))) \
 222         $(foreach class,$(classes), \
 223                 $(eval $(class)-srcs+= \
 224                         $$(subst $(top)/,, \
 225                         $$(abspath $$(addprefix $(dir $(1)),$$($(class)-y)))))) \
 226         $(eval subdirs+=$$(subst $(CURDIR)/,,$$(abspath $$(addprefix $(dir $(1)),$$(subdirs-y)))))
 227
 228 # For each path in $(subdirs) call includemakefiles
 229 # Repeat until subdirs is empty
 230 evaluate_subdirs= \
 231         $(eval cursubdirs:=$(subdirs)) \
 232         $(eval subdirs:=) \
 233         $(foreach dir,$(cursubdirs), \
 234                 $(eval $(call includemakefiles,$(dir)/Makefile.inc))) \
 235         $(if $(subdirs),$(eval $(call evaluate_subdirs)))
 236
 237 # collect all object files eligible for building
 238 subdirs:=$(TOPLEVEL)
 239 $(eval $(call evaluate_subdirs))
 240
 241 src-to-obj=$(addsuffix .$(1).o, $(basename $(addprefix $(obj)/, $($(1)-srcs))))
 242 $(foreach class,$(classes),$(eval $(class)-objs:=$(call src-to-obj,$(class))))
 243
 244 allsrcs:=$(foreach var, $(addsuffix -srcs,$(classes)), $($(var)))
 245 allobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))
 246 alldirs:=$(sort $(abspath $(dir $(allobjs))))
 247
 248 # macro to define template macros that are used by use_template macro
 249 define create_cc_template
 250 # $1 obj class
 251 # $2 source suffix (c, S)
 252 # $3 additional compiler flags
 253 # $4 additional dependencies
 254 ifn$(EMPTY)def $(1)-objs_$(2)_template
 255 de$(EMPTY)fine $(1)-objs_$(2)_template
 256 $(obj)/$$(1).$(1).o: $$(1).$(2) $(obj)/libpayload-config.h $(4)
 257         @printf "    CC         $$$$(subst $$$$(obj)/,,$$$$(@))\n"
 258         $(CC) $(3) -MMD $$$$(CFLAGS) -c -o $$$$@ $$$$<
 259 en$(EMPTY)def
 260 end$(EMPTY)if
 261 endef
 262
 263 filetypes-of-class=$(subst .,,$(sort $(suffix $($(1)-srcs))))
 264 $(foreach class,$(classes), \
 265         $(foreach type,$(call filetypes-of-class,$(class)), \
 266                 $(eval $(call create_cc_template,$(class),$(type),$($(class)-$(type)-ccopts),$($(class)-$(type)-deps)))))
 267
 268 foreach-src=$(foreach file,$($(1)-srcs),$(eval $(call $(1)-objs_$(subst .,,$(suffix $(file)))_template,$(basename $(file)))))
 269 $(eval $(foreach class,$(classes),$(call foreach-src,$(class))))
 270
 271 DEPENDENCIES = $(allobjs:.o=.d)
 272 -include $(DEPENDENCIES)
 273
 274 printall:
 275         @$(foreach class,$(classes),echo $(class)-objs:=$($(class)-objs); )
 276         @echo alldirs:=$(alldirs)
 277         @echo allsrcs=$(allsrcs)
 278         @echo DEPENDENCIES=$(DEPENDENCIES)
 279         @$(foreach class,$(special-classes),echo $(class):='$($(class))'; )
 280
 281 endif
 282
 283 $(shell mkdir -p $(KCONFIG_SPLITCONFIG) $(obj) $(objk)/lxdialog $(additional-dirs) $(alldirs))
 284
 285 cscope:
 286         cscope -bR
 287
 288 doxy: doxygen
 289 doxygen:
 290         $(DOXYGEN) Doxyfile
 291
 292 doxyclean: doxygen-clean
 293 doxygen-clean:
 294         rm -rf $(DOXYGEN_OUTPUT_DIR)
 295
 296 clean-for-update: doxygen-clean clean-for-update-target
 297         rm -f $(allobjs) .xcompile
 298         rm -f $(DEPENDENCIES)
 299         rmdir -p $(alldirs) 2>/dev/null >/dev/null || true
 300
 301 clean: clean-for-update clean-target
 302         rm -f .ccwrap junit_config junit_config.old
 303         rm -rf $(obj)
 304
 305 clean-cscope:
 306         rm -f cscope.out
 307
 308 distclean: clean-cscope clean
 309         rm -f .config .config.old ..config.tmp .kconfig.d .tmpconfig* .ccwrap .xcompile junit.xml
 310
 311 .PHONY: $(PHONY) clean clean-cscope cscope distclean doxygen doxy