1 #
   2 # Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
   3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4 #
   5 # This code is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License version 2 only, as
   7 # published by the Free Software Foundation.  Oracle designates this
   8 # particular file as subject to the "Classpath" exception as provided
   9 # by Oracle in the LICENSE file that accompanied this code.
  10 #
  11 # This code is distributed in the hope that it will be useful, but WITHOUT
  12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 # version 2 for more details (a copy is included in the LICENSE file that
  15 # accompanied this code).
  16 #
  17 # You should have received a copy of the GNU General Public License version
  18 # 2 along with this work; if not, write to the Free Software Foundation,
  19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20 #
  21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22 # or visit www.oracle.com if you need additional information or have any
  23 # questions.
  24 #
  25 
  26 ##########################################################################################
  27 #
  28 # Workhorse makefile for creating ONE cross compiler
  29 # Needs either to be from BUILD -> BUILD OR have
  30 # BUILD -> HOST prebuilt
  31 #
  32 # NOTE: There is a bug here. We don't limit the
  33 # PATH when building BUILD -> BUILD, which means that
  34 # if you configure after you've once build the BUILD->BUILD
  35 # compiler THAT one will be picked up as the compiler for itself.
  36 # This is not so great, especially if you did a partial delete
  37 # of the target tree.
  38 #
  39 # Fix this...
  40 #
  41 
  42 $(info TARGET=$(TARGET))
  43 $(info HOST=$(HOST))
  44 $(info BUILD=$(BUILD))
  45 
  46 ARCH := $(word 1,$(subst -, ,$(TARGET)))
  47 
  48 ifeq ($(TARGET), arm-linux-gnueabihf)
  49   ARCH=armhfp
  50 endif
  51 
  52 $(info ARCH=$(ARCH))
  53 
  54 ifeq ($(BASE_OS), OEL6)
  55   BASE_URL := http://yum.oracle.com/repo/OracleLinux/OL6/4/base/$(ARCH)/
  56   LINUX_VERSION := OEL6.4
  57 else ifeq ($(BASE_OS), Fedora)
  58   DEFAULT_OS_VERSION := 27
  59   ifeq ($(BASE_OS_VERSION), )
  60     BASE_OS_VERSION := $(DEFAULT_OS_VERSION)
  61   endif
  62   ifeq ($(filter x86_64 armhfp, $(ARCH)), )
  63     FEDORA_TYPE := fedora-secondary
  64   else
  65     FEDORA_TYPE := fedora/linux
  66   endif
  67   ARCHIVED := $(shell [ $(BASE_OS_VERSION) -lt $(DEFAULT_OS_VERSION) ] && echo true)
  68   ifeq ($(ARCHIVED),true)
  69     BASE_URL := https://archives.fedoraproject.org/pub/archive/$(FEDORA_TYPE)/releases/$(BASE_OS_VERSION)/Everything/$(ARCH)/os/Packages/
  70   else
  71     BASE_URL := https://dl.fedoraproject.org/pub/$(FEDORA_TYPE)/releases/$(BASE_OS_VERSION)/Everything/$(ARCH)/os/Packages/
  72   endif
  73   LINUX_VERSION := Fedora_$(BASE_OS_VERSION)
  74 else
  75   $(error Unknown base OS $(BASE_OS))
  76 endif
  77 
  78 ##########################################################################################
  79 # Define external dependencies
  80 
  81 # Latest that could be made to work.
  82 GCC_VER := 7.3.0
  83 ifeq ($(GCC_VER), 7.3.0)
  84   gcc_ver := gcc-7.3.0
  85   binutils_ver := binutils-2.30
  86   ccache_ver := ccache-3.3.6
  87   mpfr_ver := mpfr-3.1.5
  88   gmp_ver := gmp-6.1.2
  89   mpc_ver := mpc-1.0.3
  90   gdb_ver := gdb-8.1
  91 else ifeq ($(GCC_VER), 4.9.2)
  92   gcc_ver := gcc-4.9.2
  93   binutils_ver := binutils-2.25
  94   ccache_ver := ccache-3.2.1
  95   mpfr_ver := mpfr-3.0.1
  96   gmp_ver := gmp-4.3.2
  97   mpc_ver := mpc-1.0.1
  98   gdb_ver := gdb-7.12.1
  99 else
 100   $(error Unsupported GCC version)
 101 endif
 102 
 103 GCC := http://ftp.gnu.org/pub/gnu/gcc/$(gcc_ver)/$(gcc_ver).tar.xz
 104 BINUTILS := http://ftp.gnu.org/pub/gnu/binutils/$(binutils_ver).tar.xz
 105 CCACHE := https://samba.org/ftp/ccache/$(ccache_ver).tar.xz
 106 MPFR := http://www.mpfr.org/${mpfr_ver}/${mpfr_ver}.tar.bz2
 107 GMP := http://ftp.gnu.org/pub/gnu/gmp/${gmp_ver}.tar.bz2
 108 MPC := http://ftp.gnu.org/pub/gnu/mpc/${mpc_ver}.tar.gz
 109 GDB := http://ftp.gnu.org/gnu/gdb/${gdb_ver}.tar.xz
 110 
 111 # RPMs used by all BASE_OS
 112 RPM_LIST := \
 113     kernel-headers \
 114     glibc glibc-headers glibc-devel \
 115     cups-libs cups-devel \
 116     libX11 libX11-devel \
 117     xorg-x11-proto-devel \
 118     alsa-lib alsa-lib-devel \
 119     libXext libXext-devel \
 120     libXtst libXtst-devel \
 121     libXrender libXrender-devel \
 122     libXrandr libXrandr-devel \
 123     freetype freetype-devel \
 124     libXt libXt-devel \
 125     libSM libSM-devel \
 126     libICE libICE-devel \
 127     libXi libXi-devel \
 128     libXdmcp libXdmcp-devel \
 129     libXau libXau-devel \
 130     libgcc \
 131     zlib zlib-devel \
 132     libffi libffi-devel \
 133     fontconfig fontconfig-devel \
 134     systemtap-sdt-devel \
 135     #
 136 
 137 ##########################################################################################
 138 # Define common directories and files
 139 
 140 # Ensure we have 32-bit libs also for x64. We enable mixed-mode.
 141 ifeq (x86_64,$(ARCH))
 142   LIBDIRS := lib64 lib
 143   CFLAGS_lib := -m32
 144 else
 145   LIBDIRS := lib
 146 endif
 147 
 148 # Define directories
 149 BUILDDIR := $(OUTPUT_ROOT)/$(HOST)/$(TARGET)
 150 TARGETDIR := $(PREFIX)/$(TARGET)
 151 SYSROOT := $(TARGETDIR)/sysroot
 152 DOWNLOAD := $(OUTPUT_ROOT)/download
 153 DOWNLOAD_RPMS := $(DOWNLOAD)/rpms/$(TARGET)-$(LINUX_VERSION)
 154 SRCDIR := $(OUTPUT_ROOT)/src
 155 
 156 # Marker file for unpacking rpms
 157 rpms := $(SYSROOT)/rpms_unpacked
 158 
 159 # Need to patch libs that are linker scripts to use non-absolute paths
 160 libs := $(SYSROOT)/libs_patched
 161 
 162 ################################################################################
 163 # Download RPMs
 164 download-rpms:
 165         mkdir -p $(DOWNLOAD_RPMS)
 166         # Only run this if rpm dir is empty.
 167         ifeq ($(wildcard $(DOWNLOAD_RPMS)/*.rpm), )
 168           cd $(DOWNLOAD_RPMS) && \
 169               wget -r -np -nd $(patsubst %, -A "*%*.rpm", $(RPM_LIST)) $(BASE_URL)
 170         endif
 171 
 172 ##########################################################################################
 173 # Unpack source packages
 174 
 175 # Generate downloading + unpacking of sources.
 176 define Download
 177   $(1)_DIR = $(abspath $(SRCDIR)/$(basename $(basename $(notdir $($(1))))))
 178   $(1)_CFG = $$($(1)_DIR)/configure
 179   $(1)_FILE = $(DOWNLOAD)/$(notdir $($(1)))
 180 
 181   $$($(1)_CFG) : $$($(1)_FILE)
 182         mkdir -p $$(SRCDIR)
 183         tar -C $$(SRCDIR) -xf $$<
 184         $$(foreach p,$$(abspath $$(wildcard $$(notdir $$($(1)_DIR)).patch)), \
 185           echo PATCHING $$(p) ; \
 186           patch -d $$($(1)_DIR) -p1 -i $$(p) ; \
 187         )
 188         touch $$@
 189 
 190   $$($(1)_FILE) :
 191         wget -P $(DOWNLOAD) $$($(1))
 192 endef
 193 
 194 # Download and unpack all source packages
 195 $(foreach p,GCC BINUTILS CCACHE MPFR GMP MPC GDB,$(eval $(call Download,$(p))))
 196 
 197 ##########################################################################################
 198 # Unpack RPMS
 199 
 200 RPM_ARCHS := $(ARCH) noarch
 201 ifeq ($(ARCH),x86_64)
 202   ifeq ($(BUILD),$(HOST))
 203     ifeq ($(TARGET),$(HOST))
 204       # When building the native compiler for x86_64, enable mixed mode.
 205       RPM_ARCHS += i386 i686
 206     endif
 207   endif
 208 else ifeq ($(ARCH),i686)
 209   RPM_ARCHS += i386
 210 else ifeq ($(ARCH), armhfp)
 211   RPM_ARCHS += armv7hl
 212 endif
 213 
 214 RPM_FILE_LIST := $(sort $(foreach a, $(RPM_ARCHS), \
 215   $(wildcard $(patsubst %,$(DOWNLOAD_RPMS)/%*$a.rpm,$(RPM_LIST))) \
 216 ))
 217 
 218 # Note. For building linux you should install rpm2cpio.
 219 define unrpm
 220   $(SYSROOT)/$(notdir $(1)).unpacked : $(1)
 221   $$(rpms) : $(SYSROOT)/$(notdir $(1)).unpacked
 222 endef
 223 
 224 %.unpacked :
 225         $(info Unpacking target rpms and libraries from $<)
 226         @(mkdir -p $(@D); \
 227         cd $(@D); \
 228         rpm2cpio $< | \
 229             cpio --extract --make-directories \
 230                 -f \
 231                 "./usr/share/doc/*" \
 232                 "./usr/share/man/*" \
 233                 "./usr/X11R6/man/*" \
 234                 "*/X11/locale/*" \
 235             || die ; )
 236         touch $@
 237 
 238 $(foreach p,$(RPM_FILE_LIST),$(eval $(call unrpm,$(p))))
 239 
 240 ##########################################################################################
 241 
 242 # Note: MUST create a <sysroot>/usr/lib even if not really needed.
 243 # gcc will use a path relative to it to resolve lib64. (x86_64).
 244 # we're creating multi-lib compiler with 32bit libc as well, so we should
 245 # have it anyway, but just to make sure...
 246 # Patch libc.so and libpthread.so to force linking against libraries in sysroot
 247 # and not the ones installed on the build machine.
 248 $(libs) : $(rpms)
 249         @echo Patching libc and pthreads
 250         @(for f in `find $(SYSROOT) -name libc.so -o -name libpthread.so`; do \
 251           (cat $$f | sed -e 's|/usr/lib64/||g' \
 252               -e 's|/usr/lib/||g' \
 253               -e 's|/lib64/||g' \
 254               -e 's|/lib/||g' ) > $$f.tmp ; \
 255           mv $$f.tmp $$f ; \
 256         done)
 257         @mkdir -p $(SYSROOT)/usr/lib
 258         @touch $@
 259 
 260 ##########################################################################################
 261 # Create links for ffi header files so that they become visible by default when using the
 262 # devkit.
 263 ifeq ($(ARCH), x86_64)
 264   $(SYSROOT)/usr/include/ffi.h: $(rpms)
 265         cd $(@D) && rm -f $(@F) && ln -s ../lib/libffi-*/include/$(@F) .
 266 
 267   $(SYSROOT)/usr/include/ffitarget.h: $(rpms)
 268         cd $(@D) && rm -f $(@F) && ln -s ../lib/libffi-*/include/$(@F) .
 269 
 270   SYSROOT_LINKS += $(SYSROOT)/usr/include/ffi.h $(SYSROOT)/usr/include/ffitarget.h
 271 endif
 272 
 273 ##########################################################################################
 274 
 275 # Define marker files for each source package to be compiled
 276 $(foreach t,binutils mpfr gmp mpc gcc ccache gdb,$(eval $(t) = $(TARGETDIR)/$($(t)_ver).done))
 277 
 278 ##########################################################################################
 279 
 280 # Default base config
 281 CONFIG = --target=$(TARGET) \
 282     --host=$(HOST) --build=$(BUILD) \
 283     --prefix=$(PREFIX)
 284 
 285 PATHEXT = $(PREFIX)/bin:
 286 
 287 PATHPRE = PATH=$(PATHEXT)$(PATH)
 288 NUM_CORES := $(shell cat /proc/cpuinfo | grep -c processor)
 289 BUILDPAR = -j$(NUM_CORES)
 290 
 291 # Default commands to when making
 292 MAKECMD =
 293 INSTALLCMD = install
 294 
 295 
 296 declare_tools = CC$(1)=$(2)gcc LD$(1)=$(2)ld AR$(1)=$(2)ar AS$(1)=$(2)as RANLIB$(1)=$(2)ranlib CXX$(1)=$(2)g++ OBJDUMP$(1)=$(2)objdump
 297 
 298 ifeq ($(HOST),$(BUILD))
 299   ifeq ($(HOST),$(TARGET))
 300     TOOLS = $(call declare_tools,_FOR_TARGET,)
 301   endif
 302 endif
 303 
 304 TOOLS ?= $(call declare_tools,_FOR_TARGET,$(TARGET)-)
 305 
 306 ##########################################################################################
 307 
 308 # Create a TARGET bfd + libiberty only.
 309 # Configure one or two times depending on mulitlib arch.
 310 # If multilib, the second should be 32-bit, and we resolve
 311 # CFLAG_<name> to most likely -m32.
 312 define mk_bfd
 313   $$(info Libs for $(1))
 314   $$(BUILDDIR)/$$(binutils_ver)-$(subst /,-,$(1))/Makefile \
 315       : CFLAGS += $$(CFLAGS_$(1))
 316   $$(BUILDDIR)/$$(binutils_ver)-$(subst /,-,$(1))/Makefile \
 317       : LIBDIRS = --libdir=$(TARGETDIR)/$(1)
 318 
 319   bfdlib += $$(TARGETDIR)/$$(binutils_ver)-$(subst /,-,$(1)).done
 320   bfdmakes += $$(BUILDDIR)/$$(binutils_ver)-$(subst /,-,$(1))/Makefile
 321 endef
 322 
 323 # Create one set of bfds etc for each multilib arch
 324 $(foreach l,$(LIBDIRS),$(eval $(call mk_bfd,$(l))))
 325 
 326 # Only build these two libs.
 327 $(bfdlib) : MAKECMD = all-libiberty all-bfd
 328 $(bfdlib) : INSTALLCMD = install-libiberty install-bfd
 329 
 330 # Building targets libbfd + libiberty. HOST==TARGET, i.e not
 331 # for a cross env.
 332 $(bfdmakes) : CONFIG = --target=$(TARGET) \
 333     --host=$(TARGET) --build=$(BUILD) \
 334     --prefix=$(TARGETDIR) \
 335     --with-sysroot=$(SYSROOT) \
 336     $(LIBDIRS)
 337 
 338 $(bfdmakes) : TOOLS = $(call declare_tools,_FOR_TARGET,$(TARGET)-) $(call declare_tools,,$(TARGET)-)
 339 
 340 ##########################################################################################
 341 
 342 $(gcc) \
 343     $(binutils) \
 344     $(gmp) \
 345     $(mpfr) \
 346     $(mpc) \
 347     $(bfdmakes) \
 348     $(ccache) : ENVS += $(TOOLS)
 349 
 350 # libdir to work around hateful bfd stuff installing into wrong dirs...
 351 # ensure we have 64 bit bfd support in the HOST library. I.e our
 352 # compiler on i686 will know 64 bit symbols, BUT later
 353 # we build just the libs again for TARGET, then with whatever the arch
 354 # wants.
 355 $(BUILDDIR)/$(binutils_ver)/Makefile : CONFIG += --enable-64-bit-bfd --libdir=$(PREFIX)/$(word 1,$(LIBDIRS))
 356 
 357 # Makefile creation. Simply run configure in build dir.
 358 $(bfdmakes) \
 359 $(BUILDDIR)/$(binutils_ver)/Makefile \
 360     : $(BINUTILS_CFG)
 361         $(info Configuring $@. Log in $(@D)/log.config)
 362         @mkdir -p $(@D)
 363         ( \
 364           cd $(@D) ; \
 365           $(PATHPRE) $(ENVS) CFLAGS="$(CFLAGS)" \
 366               $(BINUTILS_CFG) \
 367               $(CONFIG) \
 368               --with-sysroot=$(SYSROOT) \
 369               --disable-nls \
 370               --program-prefix=$(TARGET)- \
 371               --enable-multilib \
 372               --enable-gold \
 373               --enable-plugins \
 374         ) > $(@D)/log.config 2>&1
 375         @echo 'done'
 376 
 377 $(BUILDDIR)/$(mpfr_ver)/Makefile \
 378     : $(MPFR_CFG)
 379         $(info Configuring $@. Log in $(@D)/log.config)
 380         @mkdir -p $(@D)
 381         ( \
 382           cd $(@D) ; \
 383           $(PATHPRE) $(ENVS) CFLAGS="$(CFLAGS)" \
 384               $(MPFR_CFG) \
 385               $(CONFIG) \
 386               --program-prefix=$(TARGET)- \
 387               --enable-shared=no \
 388               --with-gmp=$(PREFIX) \
 389         ) > $(@D)/log.config 2>&1
 390         @echo 'done'
 391 
 392 $(BUILDDIR)/$(gmp_ver)/Makefile \
 393     : $(GMP_CFG)
 394         $(info Configuring $@. Log in $(@D)/log.config)
 395         @mkdir -p $(@D)
 396         ( \
 397           cd $(@D) ; \
 398           $(PATHPRE) $(ENVS) CFLAGS="$(CFLAGS)" \
 399               $(GMP_CFG) \
 400               --host=$(HOST) --build=$(BUILD) \
 401               --prefix=$(PREFIX) \
 402               --disable-nls \
 403               --program-prefix=$(TARGET)- \
 404               --enable-shared=no \
 405               --with-mpfr=$(PREFIX) \
 406         ) > $(@D)/log.config 2>&1
 407         @echo 'done'
 408 
 409 $(BUILDDIR)/$(mpc_ver)/Makefile \
 410     : $(MPC_CFG)
 411         $(info Configuring $@. Log in $(@D)/log.config)
 412         @mkdir -p $(@D)
 413         ( \
 414           cd $(@D) ; \
 415           $(PATHPRE) $(ENVS) CFLAGS="$(CFLAGS)" \
 416               $(MPC_CFG) \
 417               $(CONFIG) \
 418               --program-prefix=$(TARGET)- \
 419               --enable-shared=no \
 420               --with-mpfr=$(PREFIX) \
 421               --with-gmp=$(PREFIX) \
 422         ) > $(@D)/log.config 2>&1
 423         @echo 'done'
 424 
 425 # Only valid if glibc target -> linux
 426 # proper destructor handling for c++
 427 ifneq (,$(findstring linux,$(TARGET)))
 428   $(BUILDDIR)/$(gcc_ver)/Makefile : CONFIG += --enable-__cxa_atexit
 429 endif
 430 
 431 ifeq ($(ARCH), armhfp)
 432   $(BUILDDIR)/$(gcc_ver)/Makefile : CONFIG +=  --with-float=hard
 433 endif
 434 
 435 ifneq ($(filter ppc64 ppc64le s390x, $(ARCH)), )
 436   # We only support 64-bit on these platforms anyway
 437   CONFIG += --disable-multilib
 438 endif
 439 
 440 # Want:
 441 # c,c++
 442 # shared libs
 443 # multilib (-m32/-m64 on x64)
 444 # skip native language.
 445 # and link and assemble with the binutils we created
 446 # earlier, so --with-gnu*
 447 $(BUILDDIR)/$(gcc_ver)/Makefile \
 448     : $(GCC_CFG)
 449         $(info Configuring $@. Log in $(@D)/log.config)
 450         mkdir -p $(@D)
 451         ( \
 452           cd $(@D) ; \
 453           $(PATHPRE) $(ENVS) $(GCC_CFG) $(EXTRA_CFLAGS) \
 454               $(CONFIG) \
 455               --with-sysroot=$(SYSROOT) \
 456               --enable-languages=c,c++ \
 457               --enable-shared \
 458               --disable-nls \
 459               --with-gnu-as \
 460               --with-gnu-ld \
 461               --with-mpfr=$(PREFIX) \
 462               --with-gmp=$(PREFIX) \
 463               --with-mpc=$(PREFIX) \
 464         ) > $(@D)/log.config 2>&1
 465         @echo 'done'
 466 
 467 # need binutils for gcc
 468 $(gcc) : $(binutils)
 469 
 470 # as of 4.3 or so need these for doing config
 471 $(BUILDDIR)/$(gcc_ver)/Makefile : $(gmp) $(mpfr) $(mpc)
 472 $(mpfr) : $(gmp)
 473 $(mpc) : $(gmp) $(mpfr)
 474 
 475 ################################################################################
 476 # Build gdb but only where host and target match
 477 ifeq ($(HOST), $(TARGET))
 478   $(BUILDDIR)/$(gdb_ver)/Makefile: $(GDB_CFG)
 479         $(info Configuring $@. Log in $(@D)/log.config)
 480         mkdir -p $(@D)
 481         ( \
 482           cd $(@D) ; \
 483           $(PATHPRE) $(ENVS) CFLAGS="$(CFLAGS)" $(GDB_CFG) \
 484               $(CONFIG) \
 485               --with-sysroot=$(SYSROOT) \
 486         ) > $(@D)/log.config 2>&1
 487         @echo 'done'
 488 
 489   $(gdb): $(gcc)
 490 else
 491   $(BUILDDIR)/$(gdb_ver)/Makefile:
 492         $(info Faking $@, not used when cross-compiling)
 493         mkdir -p $(@D)
 494         echo "install:" > $@
 495         @echo 'done'
 496 endif
 497 
 498 ##########################################################################################
 499 # very straightforward. just build a ccache. it is only for host.
 500 $(BUILDDIR)/$(ccache_ver)/Makefile \
 501     : $(CCACHE_CFG)
 502         $(info Configuring $@. Log in $(@D)/log.config)
 503         @mkdir -p $(@D)
 504         @( \
 505           cd $(@D) ; \
 506           $(PATHPRE) $(ENVS) $(CCACHE_CFG) \
 507               $(CONFIG) \
 508         ) > $(@D)/log.config 2>&1
 509         @echo 'done'
 510 
 511 gccpatch = $(TARGETDIR)/gcc-patched
 512 
 513 ##########################################################################################
 514 # For some reason cpp is not created as a target-compiler
 515 ifeq ($(HOST),$(TARGET))
 516   $(gccpatch) : $(gcc) link_libs
 517         @echo -n 'Creating compiler symlinks...'
 518         @for f in cpp; do \
 519           if [ ! -e $(PREFIX)/bin/$(TARGET)-$$f ]; \
 520           then \
 521             cd $(PREFIX)/bin && \
 522             ln -fs $$f $(TARGET)-$$f ; \
 523           fi \
 524         done
 525         @touch $@
 526         @echo 'done'
 527 
 528   ##########################################################################################
 529   # Ugly at best. Seems that when we compile host->host compiler, that are NOT
 530   # the BUILD compiler, the result will not try searching for libs in package root.
 531   # "Solve" this by create links from the target libdirs to where they are.
 532   link_libs:
 533         @echo -n 'Creating library symlinks...'
 534         @$(foreach l,$(LIBDIRS), \
 535         for f in `cd $(PREFIX)/$(l) && ls`; do \
 536           if [ ! -e $(TARGETDIR)/$(l)/$$f ]; then \
 537             mkdir -p $(TARGETDIR)/$(l) && \
 538             cd $(TARGETDIR)/$(l)/ && \
 539             ln -fs $(if $(findstring /,$(l)),../,)../../$(l)/$$f $$f; \
 540           fi \
 541         done;)
 542         @echo 'done'
 543 else
 544   $(gccpatch) :
 545         @echo 'done'
 546 endif
 547 
 548 ##########################################################################################
 549 # Build in two steps.
 550 # make <default>
 551 # make install.
 552 # Use path to our build hosts cross tools
 553 # Always need to build cross tools for build host self.
 554 $(TARGETDIR)/%.done : $(BUILDDIR)/%/Makefile
 555         $(info Building $(basename $@). Log in $(<D)/log.build)
 556         $(PATHPRE) $(ENVS) $(MAKE) $(BUILDPAR) -f $< -C $(<D) $(MAKECMD) $(MAKECMD.$(notdir $@)) > $(<D)/log.build 2>&1
 557         @echo -n 'installing...'
 558         $(PATHPRE) $(MAKE) $(INSTALLPAR) -f $< -C $(<D) $(INSTALLCMD) $(MAKECMD.$(notdir $@)) > $(<D)/log.install 2>&1
 559         @mkdir -p $(@D)
 560         @touch $@
 561         @echo 'done'
 562 
 563 ##########################################################################################
 564 
 565 $(PREFIX)/devkit.info:
 566         @echo 'Creating devkit.info in the root of the kit'
 567         rm -f $@
 568         touch $@
 569         echo '# This file describes to configure how to interpret the contents of this' >> $@
 570         echo '# devkit' >> $@
 571         echo '' >> $@
 572         echo 'DEVKIT_NAME="$(gcc_ver) - $(LINUX_VERSION)"' >> $@
 573         echo 'DEVKIT_TOOLCHAIN_PATH="$$DEVKIT_ROOT/bin"' >> $@
 574         echo 'DEVKIT_SYSROOT="$$DEVKIT_ROOT/$(TARGET)/sysroot"' >> $@
 575         echo 'DEVKIT_EXTRA_PATH="$$DEVKIT_ROOT/bin"' >> $@
 576 
 577 ##########################################################################################
 578 # Copy these makefiles into the root of the kit
 579 $(PREFIX)/Makefile: ./Makefile
 580         rm -rf $@
 581         cp $< $@
 582 
 583 $(PREFIX)/Tools.gmk: ./Tools.gmk
 584         rm -rf $@
 585         cp $< $@
 586 
 587 THESE_MAKEFILES := $(PREFIX)/Makefile $(PREFIX)/Tools.gmk
 588 
 589 ##########################################################################################
 590 
 591 ifeq ($(TARGET), $(HOST))
 592   # To build with dtrace support, the build needs access to the dtrace executable from the
 593   # sysroot. Generally we don't want to add binaries in the sysroot to the path, but
 594   # luckily this seems to execute well enough on a different host Linux distro, so symlink
 595   # it into the main bin dir.
 596   $(PREFIX)/bin/dtrace:
 597         @echo 'Creating dtrace soft link'
 598         ln -s ../$(HOST)/sysroot/usr/bin/dtrace $@
 599 
 600   $(PREFIX)/bin/%:
 601         @echo 'Creating missing $* soft link'
 602         ln -s $(TARGET)-$* $@
 603 
 604   missing-links := $(addprefix $(PREFIX)/bin/, \
 605       addr2line ar as c++ c++filt dwp elfedit g++ gcc gcc-$(GCC_VER) gprof ld ld.bfd \
 606       ld.gold nm objcopy objdump ranlib readelf size strings strip)
 607 endif
 608 
 609 ##########################################################################################
 610 
 611 bfdlib : $(bfdlib)
 612 binutils : $(binutils)
 613 rpms : $(rpms)
 614 libs : $(libs)
 615 sysroot : rpms libs
 616 gcc : sysroot $(gcc) $(gccpatch)
 617 gdb : $(gdb)
 618 all : binutils gcc bfdlib $(PREFIX)/devkit.info $(missing-links) $(SYSROOT_LINKS) \
 619     $(THESE_MAKEFILES) gdb
 620 
 621 # this is only built for host. so separate.
 622 ccache : $(ccache)
 623 
 624 .PHONY : gcc all binutils bfdlib link_libs rpms libs sysroot