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 xcompile ?= $(obj)/xcompile
 122 $(xcompile): $(top)/../../util/xcompile/xcompile
 123         $< $(XGCCPATH) > $@.tmp
 124         \mv -f $@.tmp $@ 2> /dev/null
 125
 126 ifeq ($(NOCOMPILE),1)
 127 include $(TOPLEVEL)/Makefile.inc
 128 real-all: config
 129
 130 else
 131
 132 # in addition to the dependency below, create the file if it doesn't exist
 133 # to silence stupid warnings about a file that would be generated anyway.
 134 $(if $(wildcard $(xcompile)),,$(shell   \
 135         mkdir -p $(dir $(xcompile)) &&  \
 136         $(top)/../../util/xcompile/xcompile $(XGCCPATH) > $(xcompile) || rm -f $(xcompile)))
 137
 138 include $(xcompile)
 139
 140 ifneq ($(XCOMPILE_COMPLETE),1)
 141 $(shell rm -f $(xcompile))
 142 $(error $(xcompile) deleted because it's invalid. \
 143         Restarting the build should fix that, or explain the problem)
 144 endif
 145
 146 CC := $(CC_$(ARCH-y))
 147 AS := $(AS_$(ARCH-y))
 148 LD := $(LD_$(ARCH-y))
 149 NM := $(NM_$(ARCH-y))
 150 OBJCOPY := $(OBJCOPY_$(ARCH-y))
 151 OBJDUMP := $(OBJDUMP_$(ARCH-y))
 152 READELF := $(READELF_$(ARCH-y))
 153 STRIP := $(STRIP_$(ARCH-y))
 154 AR := $(AR_$(ARCH-y))
 155
 156 CFLAGS += -std=gnu11 $(CFLAGS_$(ARCH-y))
 157
 158 ifneq ($(INNER_SCANBUILD),y)
 159 ifeq ($(CONFIG_LP_COMPILER_LLVM_CLANG),y)
 160 CC:=clang -m32
 161 HOSTCC:=clang
 162 endif
 163 endif
 164
 165 ifeq ($(CONFIG_LP_CCACHE),y)
 166 CCACHE:=$(word 1,$(wildcard $(addsuffix /ccache,$(subst :, ,$(PATH)))))
 167 ifeq ($(CCACHE),)
 168 $(error ccache selected, but not found in PATH)
 169 endif
 170 CCACHE:=CCACHE_COMPILERCHECK=content CCACHE_BASEDIR=$(top) $(CCACHE)
 171 CC := $(CCACHE) $(CC)
 172 HOSTCC := $(CCACHE) $(HOSTCC)
 173 HOSTCXX := $(CCACHE) $(HOSTCXX)
 174 endif
 175
 176 strip_quotes = $(subst ",,$(subst \",,$(1)))
 177
 178 # The primary target needs to be here before we include the
 179 # other files
 180
 181 ifeq ($(INNER_SCANBUILD),y)
 182 CONFIG_LP_SCANBUILD_ENABLE:=
 183 endif
 184
 185 ifeq ($(CONFIG_LP_SCANBUILD_ENABLE),y)
 186 ifneq ($(CONFIG_LP_SCANBUILD_REPORT_LOCATION),)
 187 CONFIG_LP_SCANBUILD_REPORT_LOCATION:=-o $(CONFIG_LP_SCANBUILD_REPORT_LOCATION)
 188 endif
 189 real-all:
 190         echo '#!/bin/sh' > .ccwrap
 191         echo 'CC="$(CC)"' >> .ccwrap
 192         echo 'if [ "$$1" = "--hostcc" ]; then shift; CC="$(HOSTCC)"; fi' >> .ccwrap
 193         echo 'if [ "$$1" = "--hostcxx" ]; then shift; CC="$(HOSTCXX)"; fi' >> .ccwrap
 194         echo 'eval $$CC $$*' >> .ccwrap
 195         chmod +x .ccwrap
 196         scan-build $(CONFIG_LP_SCANBUILD_REPORT_LOCATION) -analyze-headers --use-cc=$(top)/.ccwrap --use-c++=$(top)/.ccwrap $(MAKE) INNER_SCANBUILD=y
 197 else
 198 real-all: real-target
 199 endif
 200
 201 # must come rather early
 202 .SECONDEXPANSION:
 203
 204 $(KCONFIG_AUTOHEADER): $(KCONFIG_CONFIG)
 205         $(MAKE) oldconfig
 206
 207 # Add a new class of source/object files to the build system
 208 add-class= \
 209         $(eval $(1)-srcs:=) \
 210         $(eval $(1)-objs:=) \
 211         $(eval classes+=$(1))
 212
 213 # Special classes are managed types with special behaviour
 214 # On parse time, for each entry in variable $(1)-y
 215 # a handler $(1)-handler is executed with the arguments:
 216 # * $(1): directory the parser is in
 217 # * $(2): current entry
 218 add-special-class= \
 219         $(eval $(1):=) \
 220         $(eval special-classes+=$(1))
 221
 222 # Clean -y variables, include Makefile.inc
 223 # Add paths to files in X-y to X-srcs
 224 # Add subdirs-y to subdirs
 225 includemakefiles= \
 226         $(foreach class,classes subdirs $(classes) $(special-classes), $(eval $(class)-y:=)) \
 227         $(eval -include $(1)) \
 228         $(foreach class,$(classes-y), $(call add-class,$(class))) \
 229         $(foreach special,$(special-classes), \
 230                 $(foreach item,$($(special)-y), $(call $(special)-handler,$(dir $(1)),$(item)))) \
 231         $(foreach class,$(classes), \
 232                 $(eval $(class)-srcs+= \
 233                         $$(subst $(top)/,, \
 234                         $$(abspath $$(addprefix $(dir $(1)),$$($(class)-y)))))) \
 235         $(eval subdirs+=$$(subst $(CURDIR)/,,$$(abspath $$(addprefix $(dir $(1)),$$(subdirs-y)))))
 236
 237 # For each path in $(subdirs) call includemakefiles
 238 # Repeat until subdirs is empty
 239 evaluate_subdirs= \
 240         $(eval cursubdirs:=$(subdirs)) \
 241         $(eval subdirs:=) \
 242         $(foreach dir,$(cursubdirs), \
 243                 $(eval $(call includemakefiles,$(dir)/Makefile.inc))) \
 244         $(if $(subdirs),$(eval $(call evaluate_subdirs)))
 245
 246 # collect all object files eligible for building
 247 subdirs:=$(TOPLEVEL)
 248 $(eval $(call evaluate_subdirs))
 249
 250 src-to-obj=$(addsuffix .$(1).o, $(basename $(addprefix $(obj)/, $($(1)-srcs))))
 251 $(foreach class,$(classes),$(eval $(class)-objs:=$(call src-to-obj,$(class))))
 252
 253 allsrcs:=$(foreach var, $(addsuffix -srcs,$(classes)), $($(var)))
 254 allobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))
 255 alldirs:=$(sort $(abspath $(dir $(allobjs))))
 256
 257 # macro to define template macros that are used by use_template macro
 258 define create_cc_template
 259 # $1 obj class
 260 # $2 source suffix (c, S)
 261 # $3 additional compiler flags
 262 # $4 additional dependencies
 263 ifn$(EMPTY)def $(1)-objs_$(2)_template
 264 de$(EMPTY)fine $(1)-objs_$(2)_template
 265 $(obj)/$$(1).$(1).o: $$(1).$(2) $(obj)/libpayload-config.h $(4)
 266         @printf "    CC         $$$$(subst $$$$(obj)/,,$$$$(@))\n"
 267         $(CC) $(3) -MMD $$$$(CFLAGS) -c -o $$$$@ $$$$<
 268 en$(EMPTY)def
 269 end$(EMPTY)if
 270 endef
 271
 272 filetypes-of-class=$(subst .,,$(sort $(suffix $($(1)-srcs))))
 273 $(foreach class,$(classes), \
 274         $(foreach type,$(call filetypes-of-class,$(class)), \
 275                 $(eval $(call create_cc_template,$(class),$(type),$($(class)-$(type)-ccopts),$($(class)-$(type)-deps)))))
 276
 277 foreach-src=$(foreach file,$($(1)-srcs),$(eval $(call $(1)-objs_$(subst .,,$(suffix $(file)))_template,$(basename $(file)))))
 278 $(eval $(foreach class,$(classes),$(call foreach-src,$(class))))
 279
 280 DEPENDENCIES = $(allobjs:.o=.d)
 281 -include $(DEPENDENCIES)
 282
 283 printall:
 284         @$(foreach class,$(classes),echo $(class)-objs:=$($(class)-objs); )
 285         @echo alldirs:=$(alldirs)
 286         @echo allsrcs=$(allsrcs)
 287         @echo DEPENDENCIES=$(DEPENDENCIES)
 288         @$(foreach class,$(special-classes),echo $(class):='$($(class))'; )
 289
 290 endif
 291
 292 $(shell mkdir -p $(KCONFIG_SPLITCONFIG) $(obj) $(objk)/lxdialog $(additional-dirs) $(alldirs))
 293
 294 cscope:
 295         cscope -bR
 296
 297 doxy: doxygen
 298 doxygen:
 299         $(DOXYGEN) Doxyfile
 300
 301 doxyclean: doxygen-clean
 302 doxygen-clean:
 303         rm -rf $(DOXYGEN_OUTPUT_DIR)
 304
 305 clean-for-update: doxygen-clean clean-for-update-target
 306         rm -f $(allobjs) $(xcompile)
 307         rm -f $(DEPENDENCIES)
 308         rmdir -p $(alldirs) 2>/dev/null >/dev/null || true
 309
 310 clean: clean-for-update clean-target
 311         rm -f .ccwrap junit_config junit_config.old
 312         rm -rf $(obj)
 313
 314 clean-cscope:
 315         rm -f cscope.out
 316
 317 distclean: clean-cscope clean
 318         rm -f .config .config.old ..config.tmp .kconfig.d .tmpconfig* .ccwrap .xcompile junit.xml
 319
 320 .PHONY: $(PHONY) clean clean-cscope cscope distclean doxygen doxy