1 #
   2 # Copyright (c) 2011, 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 # Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
  27 # Converts autoconf style CPU name to OpenJDK style, into
  28 # VAR_CPU, VAR_CPU_ARCH, VAR_CPU_BITS and VAR_CPU_ENDIAN.
  29 AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_CPU],
  30 [
  31   # First argument is the cpu name from the trip/quad
  32   case "$1" in
  33     x86_64*x32)
  34       VAR_CPU=x32
  35       VAR_CPU_ARCH=x86
  36       VAR_CPU_BITS=32
  37       VAR_CPU_ENDIAN=little
  38       ;;
  39     x86_64)
  40       VAR_CPU=x86_64
  41       VAR_CPU_ARCH=x86
  42       VAR_CPU_BITS=64
  43       VAR_CPU_ENDIAN=little
  44       ;;
  45     i?86)
  46       VAR_CPU=x86
  47       VAR_CPU_ARCH=x86
  48       VAR_CPU_BITS=32
  49       VAR_CPU_ENDIAN=little
  50       ;;
  51     alpha*)
  52       VAR_CPU=alpha
  53       VAR_CPU_ARCH=alpha
  54       VAR_CPU_BITS=64
  55       VAR_CPU_ENDIAN=little
  56       ;;
  57     arm*)
  58       VAR_CPU=arm
  59       VAR_CPU_ARCH=arm
  60       VAR_CPU_BITS=32
  61       VAR_CPU_ENDIAN=little
  62       ;;
  63     aarch64)
  64       VAR_CPU=aarch64
  65       VAR_CPU_ARCH=aarch64
  66       VAR_CPU_BITS=64
  67       VAR_CPU_ENDIAN=little
  68       ;;
  69     ia64)
  70       VAR_CPU=ia64
  71       VAR_CPU_ARCH=ia64
  72       VAR_CPU_BITS=64
  73       VAR_CPU_ENDIAN=little
  74       ;;
  75     m68k)
  76       VAR_CPU=m68k
  77       VAR_CPU_ARCH=m68k
  78       VAR_CPU_BITS=32
  79       VAR_CPU_ENDIAN=big
  80       ;;
  81     mips)
  82       VAR_CPU=mips
  83       VAR_CPU_ARCH=mips
  84       VAR_CPU_BITS=32
  85       VAR_CPU_ENDIAN=big
  86       ;;
  87     mipsel)
  88       VAR_CPU=mipsel
  89       VAR_CPU_ARCH=mipsel
  90       VAR_CPU_BITS=32
  91       VAR_CPU_ENDIAN=little
  92       ;;
  93     mips64)
  94       VAR_CPU=mips64
  95       VAR_CPU_ARCH=mips64
  96       VAR_CPU_BITS=64
  97       VAR_CPU_ENDIAN=big
  98       ;;
  99     mips64el)
 100       VAR_CPU=mips64el
 101       VAR_CPU_ARCH=mips64el
 102       VAR_CPU_BITS=64
 103       VAR_CPU_ENDIAN=little
 104       ;;
 105     powerpc)
 106       VAR_CPU=ppc
 107       VAR_CPU_ARCH=ppc
 108       VAR_CPU_BITS=32
 109       VAR_CPU_ENDIAN=big
 110       ;;
 111     powerpc64)
 112       VAR_CPU=ppc64
 113       VAR_CPU_ARCH=ppc
 114       VAR_CPU_BITS=64
 115       VAR_CPU_ENDIAN=big
 116       ;;
 117     powerpc64le)
 118       VAR_CPU=ppc64le
 119       VAR_CPU_ARCH=ppc
 120       VAR_CPU_BITS=64
 121       VAR_CPU_ENDIAN=little
 122       ;;
 123     s390)
 124       VAR_CPU=s390
 125       VAR_CPU_ARCH=s390
 126       VAR_CPU_BITS=32
 127       VAR_CPU_ENDIAN=big
 128       ;;
 129     s390x)
 130       VAR_CPU=s390x
 131       VAR_CPU_ARCH=s390
 132       VAR_CPU_BITS=64
 133       VAR_CPU_ENDIAN=big
 134       ;;
 135     sh*eb)
 136       VAR_CPU=sh
 137       VAR_CPU_ARCH=sh
 138       VAR_CPU_BITS=32
 139       VAR_CPU_ENDIAN=big
 140       ;;
 141     sh*)
 142       VAR_CPU=sh
 143       VAR_CPU_ARCH=sh
 144       VAR_CPU_BITS=32
 145       VAR_CPU_ENDIAN=little
 146       ;;
 147     sparc)
 148       VAR_CPU=sparc
 149       VAR_CPU_ARCH=sparc
 150       VAR_CPU_BITS=32
 151       VAR_CPU_ENDIAN=big
 152       ;;
 153     sparcv9|sparc64)
 154       VAR_CPU=sparcv9
 155       VAR_CPU_ARCH=sparc
 156       VAR_CPU_BITS=64
 157       VAR_CPU_ENDIAN=big
 158       ;;
 159     *)
 160       AC_MSG_ERROR([unsupported cpu $1])
 161       ;;
 162   esac
 163 ])
 164 
 165 # Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
 166 # Converts autoconf style OS name to OpenJDK style, into
 167 # VAR_OS, VAR_OS_TYPE and VAR_OS_ENV.
 168 AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_OS],
 169 [
 170   case "$1" in
 171     *linux*)
 172       VAR_OS=linux
 173       VAR_OS_TYPE=unix
 174       ;;
 175     *solaris*)
 176       VAR_OS=solaris
 177       VAR_OS_TYPE=unix
 178       ;;
 179     *darwin*)
 180       VAR_OS=macosx
 181       VAR_OS_TYPE=unix
 182       ;;
 183     *bsd*)
 184       VAR_OS=bsd
 185       VAR_OS_TYPE=unix
 186       ;;
 187     *cygwin*)
 188       VAR_OS=windows
 189       VAR_OS_ENV=windows.cygwin
 190       ;;
 191     *mingw*)
 192       VAR_OS=windows
 193       VAR_OS_ENV=windows.msys
 194       ;;
 195     *aix*)
 196       VAR_OS=aix
 197       VAR_OS_TYPE=unix
 198       ;;
 199     *)
 200       AC_MSG_ERROR([unsupported operating system $1])
 201       ;;
 202   esac
 203 ])
 204 
 205 # Expects $host_os $host_cpu $build_os and $build_cpu
 206 # and $with_target_bits to have been setup!
 207 #
 208 # Translate the standard triplet(quadruplet) definition
 209 # of the target/build system into OPENJDK_TARGET_OS, OPENJDK_TARGET_CPU,
 210 # OPENJDK_BUILD_OS, etc.
 211 AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
 212 [
 213   # Copy the autoconf trip/quadruplet verbatim to OPENJDK_TARGET_AUTOCONF_NAME
 214   # (from the autoconf "host") and OPENJDK_BUILD_AUTOCONF_NAME
 215   # Note that we might later on rewrite e.g. OPENJDK_TARGET_CPU due to reduced build,
 216   # but this will not change the value of OPENJDK_TARGET_AUTOCONF_NAME.
 217   OPENJDK_TARGET_AUTOCONF_NAME="$host"
 218   OPENJDK_BUILD_AUTOCONF_NAME="$build"
 219   AC_SUBST(OPENJDK_TARGET_AUTOCONF_NAME)
 220   AC_SUBST(OPENJDK_BUILD_AUTOCONF_NAME)
 221 
 222   # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
 223   PLATFORM_EXTRACT_VARS_FROM_OS($build_os)
 224   PLATFORM_EXTRACT_VARS_FROM_CPU($build_cpu)
 225   # ..and setup our own variables. (Do this explicitly to facilitate searching)
 226   OPENJDK_BUILD_OS="$VAR_OS"
 227   if test "x$VAR_OS_TYPE" != x; then
 228     OPENJDK_BUILD_OS_TYPE="$VAR_OS_TYPE"
 229   else
 230     OPENJDK_BUILD_OS_TYPE="$VAR_OS"
 231   fi
 232   if test "x$VAR_OS_ENV" != x; then
 233     OPENJDK_BUILD_OS_ENV="$VAR_OS_ENV"
 234   else
 235     OPENJDK_BUILD_OS_ENV="$VAR_OS"
 236   fi
 237   OPENJDK_BUILD_CPU="$VAR_CPU"
 238   OPENJDK_BUILD_CPU_ARCH="$VAR_CPU_ARCH"
 239   OPENJDK_BUILD_CPU_BITS="$VAR_CPU_BITS"
 240   OPENJDK_BUILD_CPU_ENDIAN="$VAR_CPU_ENDIAN"
 241   AC_SUBST(OPENJDK_BUILD_OS)
 242   AC_SUBST(OPENJDK_BUILD_OS_TYPE)
 243   AC_SUBST(OPENJDK_BUILD_OS_ENV)
 244   AC_SUBST(OPENJDK_BUILD_CPU)
 245   AC_SUBST(OPENJDK_BUILD_CPU_ARCH)
 246   AC_SUBST(OPENJDK_BUILD_CPU_BITS)
 247   AC_SUBST(OPENJDK_BUILD_CPU_ENDIAN)
 248 
 249   AC_MSG_CHECKING([openjdk-build os-cpu])
 250   AC_MSG_RESULT([$OPENJDK_BUILD_OS-$OPENJDK_BUILD_CPU])
 251 
 252   # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
 253   PLATFORM_EXTRACT_VARS_FROM_OS($host_os)
 254   PLATFORM_EXTRACT_VARS_FROM_CPU($host_cpu)
 255   # ... and setup our own variables. (Do this explicitly to facilitate searching)
 256   OPENJDK_TARGET_OS="$VAR_OS"
 257   if test "x$VAR_OS_TYPE" != x; then
 258     OPENJDK_TARGET_OS_TYPE="$VAR_OS_TYPE"
 259   else
 260     OPENJDK_TARGET_OS_TYPE="$VAR_OS"
 261   fi
 262   if test "x$VAR_OS_ENV" != x; then
 263     OPENJDK_TARGET_OS_ENV="$VAR_OS_ENV"
 264   else
 265     OPENJDK_TARGET_OS_ENV="$VAR_OS"
 266   fi
 267   OPENJDK_TARGET_CPU="$VAR_CPU"
 268   OPENJDK_TARGET_CPU_ARCH="$VAR_CPU_ARCH"
 269   OPENJDK_TARGET_CPU_BITS="$VAR_CPU_BITS"
 270   OPENJDK_TARGET_CPU_ENDIAN="$VAR_CPU_ENDIAN"
 271   OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
 272 
 273   AC_SUBST(OPENJDK_TARGET_OS)
 274   AC_SUBST(OPENJDK_TARGET_OS_TYPE)
 275   AC_SUBST(OPENJDK_TARGET_OS_ENV)
 276   AC_SUBST(OPENJDK_TARGET_OS_UPPERCASE)
 277   AC_SUBST(OPENJDK_TARGET_CPU)
 278   AC_SUBST(OPENJDK_TARGET_CPU_ARCH)
 279   AC_SUBST(OPENJDK_TARGET_CPU_BITS)
 280   AC_SUBST(OPENJDK_TARGET_CPU_ENDIAN)
 281 
 282   AC_MSG_CHECKING([openjdk-target os-cpu])
 283   AC_MSG_RESULT([$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
 284 ])
 285 
 286 # Check if a reduced build (32-bit on 64-bit platforms) is requested, and modify behaviour
 287 # accordingly. Must be done after setting up build and target system, but before
 288 # doing anything else with these values.
 289 AC_DEFUN([PLATFORM_SETUP_TARGET_CPU_BITS],
 290 [
 291   AC_ARG_WITH(target-bits, [AS_HELP_STRING([--with-target-bits],
 292        [build 32-bit or 64-bit binaries (for platforms that support it), e.g. --with-target-bits=32 @<:@guessed@:>@])])
 293 
 294   # We have three types of compiles:
 295   # native  == normal compilation, target system == build system
 296   # cross   == traditional cross compilation, target system != build system; special toolchain needed
 297   # reduced == using native compilers, but with special flags (e.g. -m32) to produce 32-bit builds on 64-bit machines
 298   #
 299   if test "x$OPENJDK_BUILD_AUTOCONF_NAME" != "x$OPENJDK_TARGET_AUTOCONF_NAME"; then
 300     # We're doing a proper cross-compilation
 301     COMPILE_TYPE="cross"
 302   else
 303     COMPILE_TYPE="native"
 304   fi
 305 
 306   if test "x$with_target_bits" != x; then
 307     if test "x$COMPILE_TYPE" = "xcross"; then
 308       AC_MSG_ERROR([It is not possible to combine --with-target-bits=X and proper cross-compilation. Choose either.])
 309     fi
 310 
 311     if test "x$with_target_bits" = x32 && test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
 312       # A reduced build is requested
 313       COMPILE_TYPE="reduced"
 314       OPENJDK_TARGET_CPU_BITS=32
 315       if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
 316         OPENJDK_TARGET_CPU=x86
 317       elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
 318         OPENJDK_TARGET_CPU=sparc
 319       else
 320         AC_MSG_ERROR([Reduced build (--with-target-bits=32) is only supported on x86_64 and sparcv9])
 321       fi
 322     elif test "x$with_target_bits" = x64 && test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
 323       AC_MSG_ERROR([It is not possible to use --with-target-bits=64 on a 32 bit system. Use proper cross-compilation instead.])
 324     elif test "x$with_target_bits" = "x$OPENJDK_TARGET_CPU_BITS"; then
 325       AC_MSG_NOTICE([--with-target-bits are set to build platform address size; argument has no meaning])
 326     else
 327       AC_MSG_ERROR([--with-target-bits can only be 32 or 64, you specified $with_target_bits!])
 328     fi
 329   fi
 330   AC_SUBST(COMPILE_TYPE)
 331 
 332   AC_MSG_CHECKING([compilation type])
 333   AC_MSG_RESULT([$COMPILE_TYPE])
 334 ])
 335 
 336 # Setup the legacy variables, for controlling the old makefiles.
 337 #
 338 AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS],
 339 [
 340   PLATFORM_SETUP_LEGACY_VARS_HELPER([TARGET])
 341   PLATFORM_SETUP_LEGACY_VARS_HELPER([BUILD])
 342 ])
 343 
 344 # $1 - Either TARGET or BUILD to setup the variables for.
 345 AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS_HELPER],
 346 [
 347   # Also store the legacy naming of the cpu.
 348   # Ie i586 and amd64 instead of x86 and x86_64
 349   OPENJDK_$1_CPU_LEGACY="$OPENJDK_$1_CPU"
 350   if test "x$OPENJDK_$1_CPU" = xx86; then
 351     OPENJDK_$1_CPU_LEGACY="i586"
 352   elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
 353     # On all platforms except MacOSX replace x86_64 with amd64.
 354     OPENJDK_$1_CPU_LEGACY="amd64"
 355   elif test "x$OPENJDK_$1_CPU" = xalpha; then
 356     # Avoid name collisions with variables named alpha
 357     OPENJDK_$1_CPU_LEGACY="_alpha_"
 358   elif test "x$OPENJDK_$1_CPU" = xsh; then
 359     # Avoid name collisions with variables named sh
 360     OPENJDK_$1_CPU_LEGACY="_sh_"
 361   fi
 362   AC_SUBST(OPENJDK_$1_CPU_LEGACY)
 363 
 364   # And the second legacy naming of the cpu.
 365   # Ie i386 and amd64 instead of x86 and x86_64.
 366   OPENJDK_$1_CPU_LEGACY_LIB="$OPENJDK_$1_CPU"
 367   if test "x$OPENJDK_$1_CPU" = xx86; then
 368     OPENJDK_$1_CPU_LEGACY_LIB="i386"
 369   elif test "x$OPENJDK_$1_CPU" = xx86_64; then
 370     OPENJDK_$1_CPU_LEGACY_LIB="amd64"
 371   fi
 372   AC_SUBST(OPENJDK_$1_CPU_LEGACY_LIB)
 373 
 374   # OPENJDK_$1_CPU_ISADIR is normally empty. On 64-bit Solaris systems, it is set to
 375   # /amd64 or /sparcv9. This string is appended to some library paths, like this:
 376   # /usr/lib${OPENJDK_$1_CPU_ISADIR}/libexample.so
 377   OPENJDK_$1_CPU_ISADIR=""
 378   if test "x$OPENJDK_$1_OS" = xsolaris; then
 379     if test "x$OPENJDK_$1_CPU" = xx86_64; then
 380       OPENJDK_$1_CPU_ISADIR="/amd64"
 381     elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
 382       OPENJDK_$1_CPU_ISADIR="/sparcv9"
 383     fi
 384   fi
 385   AC_SUBST(OPENJDK_$1_CPU_ISADIR)
 386 
 387   # Setup OPENJDK_$1_CPU_OSARCH, which is used to set the os.arch Java system property
 388   OPENJDK_$1_CPU_OSARCH="$OPENJDK_$1_CPU"
 389   if test "x$OPENJDK_$1_OS" = xlinux && test "x$OPENJDK_$1_CPU" = xx86; then
 390     # On linux only, we replace x86 with i386.
 391     OPENJDK_$1_CPU_OSARCH="i386"
 392   elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
 393     # On all platforms except macosx, we replace x86_64 with amd64.
 394     OPENJDK_$1_CPU_OSARCH="amd64"
 395   fi
 396   AC_SUBST(OPENJDK_$1_CPU_OSARCH)
 397 
 398   OPENJDK_$1_CPU_JLI="$OPENJDK_$1_CPU"
 399   if test "x$OPENJDK_$1_CPU" = xx86; then
 400     OPENJDK_$1_CPU_JLI="i386"
 401   elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
 402     # On all platforms except macosx, we replace x86_64 with amd64.
 403     OPENJDK_$1_CPU_JLI="amd64"
 404   fi
 405 
 406   # The new version string in JDK 9 also defined new naming of OS and ARCH for bundles
 407   # Macosx is osx and x86_64 is x64
 408   if test "x$OPENJDK_$1_OS" = xmacosx; then
 409     OPENJDK_$1_OS_BUNDLE="osx"
 410   else
 411     OPENJDK_$1_OS_BUNDLE="$OPENJDK_TARGET_OS"
 412   fi
 413   if test "x$OPENJDK_$1_CPU" = xx86_64; then
 414     OPENJDK_$1_CPU_BUNDLE="x64"
 415   else
 416     OPENJDK_$1_CPU_BUNDLE="$OPENJDK_$1_CPU"
 417   fi
 418   OPENJDK_$1_BUNDLE_PLATFORM="${OPENJDK_$1_OS_BUNDLE}-${OPENJDK_$1_CPU_BUNDLE}"
 419   AC_SUBST(OPENJDK_$1_BUNDLE_PLATFORM)
 420 
 421   if test "x$COMPILE_TYPE" = "xcross"; then
 422     # FIXME: ... or should this include reduced builds..?
 423     DEFINE_CROSS_COMPILE_ARCH="CROSS_COMPILE_ARCH:=$OPENJDK_$1_CPU_LEGACY"
 424   else
 425     DEFINE_CROSS_COMPILE_ARCH=""
 426   fi
 427   AC_SUBST(DEFINE_CROSS_COMPILE_ARCH)
 428 
 429   # Convert openjdk platform names to hotspot names
 430 
 431   HOTSPOT_$1_OS=${OPENJDK_$1_OS}
 432   if test "x$OPENJDK_$1_OS" = xmacosx; then
 433     HOTSPOT_$1_OS=bsd
 434   fi
 435   AC_SUBST(HOTSPOT_$1_OS)
 436 
 437   HOTSPOT_$1_OS_TYPE=${OPENJDK_$1_OS_TYPE}
 438   if test "x$OPENJDK_$1_OS_TYPE" = xunix; then
 439     HOTSPOT_$1_OS_TYPE=posix
 440   fi
 441   AC_SUBST(HOTSPOT_$1_OS_TYPE)
 442 
 443   HOTSPOT_$1_CPU=${OPENJDK_$1_CPU}
 444   if test "x$OPENJDK_$1_CPU" = xx86; then
 445     HOTSPOT_$1_CPU=x86_32
 446   elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
 447     HOTSPOT_$1_CPU=sparc
 448   elif test "x$OPENJDK_$1_CPU" = xppc64; then
 449     HOTSPOT_$1_CPU=ppc_64
 450   elif test "x$OPENJDK_$1_CPU" = xppc64le; then
 451     HOTSPOT_$1_CPU=ppc_64
 452   fi
 453   AC_SUBST(HOTSPOT_$1_CPU)
 454 
 455   # This is identical with OPENJDK_*, but define anyway for consistency.
 456   HOTSPOT_$1_CPU_ARCH=${OPENJDK_$1_CPU_ARCH}
 457   AC_SUBST(HOTSPOT_$1_CPU_ARCH)
 458 
 459   # Setup HOTSPOT_$1_CPU_DEFINE
 460   if test "x$OPENJDK_$1_CPU" = xx86; then
 461     HOTSPOT_$1_CPU_DEFINE=IA32
 462   elif test "x$OPENJDK_$1_CPU" = xx86_64; then
 463     HOTSPOT_$1_CPU_DEFINE=AMD64
 464   elif test "x$OPENJDK_$1_CPU" = xx32; then
 465     HOTSPOT_$1_CPU_DEFINE=X32
 466   elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
 467     HOTSPOT_$1_CPU_DEFINE=SPARC
 468   elif test "x$OPENJDK_$1_CPU" = xaarch64; then
 469     HOTSPOT_$1_CPU_DEFINE=AARCH64
 470   elif test "x$OPENJDK_$1_CPU" = xppc64; then
 471     HOTSPOT_$1_CPU_DEFINE=PPC64
 472   elif test "x$OPENJDK_$1_CPU" = xppc64le; then
 473     HOTSPOT_$1_CPU_DEFINE=PPC64
 474 
 475   # The cpu defines below are for zero, we don't support them directly.
 476   elif test "x$OPENJDK_$1_CPU" = xsparc; then
 477     HOTSPOT_$1_CPU_DEFINE=SPARC
 478   elif test "x$OPENJDK_$1_CPU" = xppc; then
 479     HOTSPOT_$1_CPU_DEFINE=PPC32
 480   elif test "x$OPENJDK_$1_CPU" = xs390; then
 481     HOTSPOT_$1_CPU_DEFINE=S390
 482   elif test "x$OPENJDK_$1_CPU" = xs390x; then
 483     HOTSPOT_$1_CPU_DEFINE=S390
 484   elif test "x$OPENJDK_$1_CPU" != x; then
 485     HOTSPOT_$1_CPU_DEFINE=$(echo $OPENJDK_$1_CPU | tr a-z A-Z)
 486   fi
 487   AC_SUBST(HOTSPOT_$1_CPU_DEFINE)
 488 
 489   # For historical reasons, the OS include directories have odd names.
 490   OPENJDK_$1_OS_INCLUDE_SUBDIR="$OPENJDK_TARGET_OS"
 491   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
 492     OPENJDK_$1_OS_INCLUDE_SUBDIR="win32"
 493   elif test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
 494     OPENJDK_$1_OS_INCLUDE_SUBDIR="darwin"
 495   fi
 496   AC_SUBST(OPENJDK_$1_OS_INCLUDE_SUBDIR)
 497 ])
 498 
 499 AC_DEFUN([PLATFORM_SET_RELEASE_FILE_OS_VALUES],
 500 [
 501   if test "x$OPENJDK_TARGET_OS" = "xsolaris"; then
 502     RELEASE_FILE_OS_NAME=SunOS
 503   fi
 504   if test "x$OPENJDK_TARGET_OS" = "xlinux"; then
 505     RELEASE_FILE_OS_NAME=Linux
 506   fi
 507   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
 508     RELEASE_FILE_OS_NAME=Windows
 509   fi
 510   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
 511     RELEASE_FILE_OS_NAME="Darwin"
 512   fi
 513   if test "x$OPENJDK_TARGET_OS" = "xaix"; then
 514     RELEASE_FILE_OS_NAME="AIX"
 515   fi
 516   RELEASE_FILE_OS_ARCH=${OPENJDK_TARGET_CPU}
 517 
 518   AC_SUBST(RELEASE_FILE_OS_NAME)
 519   AC_SUBST(RELEASE_FILE_OS_ARCH)
 520 ])
 521 
 522 AC_DEFUN([PLATFORM_SET_MODULE_TARGET_OS_VALUES],
 523 [
 524   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
 525     OPENJDK_MODULE_TARGET_OS_NAME="macos"
 526   else
 527     OPENJDK_MODULE_TARGET_OS_NAME="$OPENJDK_TARGET_OS"
 528   fi
 529 
 530   if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
 531     OPENJDK_MODULE_TARGET_OS_ARCH="amd64"
 532   else
 533     OPENJDK_MODULE_TARGET_OS_ARCH="$OPENJDK_TARGET_CPU"
 534   fi
 535 
 536   OPENJDK_MODULE_TARGET_PLATFORM="${OPENJDK_MODULE_TARGET_OS_NAME}-${OPENJDK_MODULE_TARGET_OS_ARCH}"
 537   AC_SUBST(OPENJDK_MODULE_TARGET_PLATFORM)
 538 ])
 539 
 540 #%%% Build and target systems %%%
 541 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_AND_TARGET],
 542 [
 543   # Figure out the build and target systems. # Note that in autoconf terminology, "build" is obvious, but "target"
 544   # is confusing; it assumes you are cross-compiling a cross-compiler (!)  and "target" is thus the target of the
 545   # product you're building. The target of this build is called "host". Since this is confusing to most people, we
 546   # have not adopted that system, but use "target" as the platform we are building for. In some places though we need
 547   # to use the configure naming style.
 548   AC_CANONICAL_BUILD
 549   AC_CANONICAL_HOST
 550   AC_CANONICAL_TARGET
 551 
 552   PLATFORM_EXTRACT_TARGET_AND_BUILD
 553   PLATFORM_SETUP_TARGET_CPU_BITS
 554   PLATFORM_SET_MODULE_TARGET_OS_VALUES
 555   PLATFORM_SET_RELEASE_FILE_OS_VALUES
 556   PLATFORM_SETUP_LEGACY_VARS
 557 ])
 558 
 559 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_OS_VERSION],
 560 [
 561   ###############################################################################
 562 
 563   # Note that this is the build platform OS version!
 564 
 565   OS_VERSION="`uname -r | ${SED} 's!\.! !g' | ${SED} 's!-! !g'`"
 566   OS_VERSION_MAJOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 1 -d ' '`"
 567   OS_VERSION_MINOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 2 -d ' '`"
 568   OS_VERSION_MICRO="`${ECHO} ${OS_VERSION} | ${CUT} -f 3 -d ' '`"
 569   AC_SUBST(OS_VERSION_MAJOR)
 570   AC_SUBST(OS_VERSION_MINOR)
 571   AC_SUBST(OS_VERSION_MICRO)
 572 ])
 573 
 574 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_BITS],
 575 [
 576   ###############################################################################
 577   #
 578   # Now we check if libjvm.so will use 32 or 64 bit pointers for the C/C++ code.
 579   # (The JVM can use 32 or 64 bit Java pointers but that decision
 580   # is made at runtime.)
 581   #
 582 
 583   # Make compilation sanity check
 584   AC_CHECK_HEADERS([stdio.h], , [
 585     AC_MSG_NOTICE([Failed to compile stdio.h. This likely implies missing compile dependencies.])
 586     if test "x$COMPILE_TYPE" = xreduced; then
 587       HELP_MSG_MISSING_DEPENDENCY([reduced])
 588       AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed. $HELP_MSG])
 589     elif test "x$COMPILE_TYPE" = xcross; then
 590       AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.])
 591     fi
 592     AC_MSG_ERROR([Cannot continue.])
 593   ])
 594 
 595   AC_CHECK_SIZEOF([int *], [1111])
 596 
 597   # AC_CHECK_SIZEOF defines 'ac_cv_sizeof_int_p' to hold the number of bytes used by an 'int*'
 598   if test "x$ac_cv_sizeof_int_p" = x; then
 599     # The test failed, lets stick to the assumed value.
 600     AC_MSG_WARN([The number of bits in the target could not be determined, using $OPENJDK_TARGET_CPU_BITS.])
 601   else
 602     TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p`
 603 
 604     if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then
 605       AC_MSG_NOTICE([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS)])
 606       if test "x$COMPILE_TYPE" = xreduced; then
 607         HELP_MSG_MISSING_DEPENDENCY([reduced])
 608         AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed. $HELP_MSG])
 609       elif test "x$COMPILE_TYPE" = xcross; then
 610         AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.])
 611       fi
 612       AC_MSG_ERROR([Cannot continue.])
 613     fi
 614   fi
 615 
 616   AC_MSG_CHECKING([for target address size])
 617   AC_MSG_RESULT([$OPENJDK_TARGET_CPU_BITS bits])
 618 ])
 619 
 620 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_ENDIANNESS],
 621 [
 622   ###############################################################################
 623   #
 624   # Is the target little of big endian?
 625   #
 626   AC_C_BIGENDIAN([ENDIAN="big"],[ENDIAN="little"],[ENDIAN="unknown"],[ENDIAN="universal_endianness"])
 627 
 628   if test "x$ENDIAN" = xuniversal_endianness; then
 629     AC_MSG_ERROR([Building with both big and little endianness is not supported])
 630   fi
 631   if test "x$ENDIAN" != "x$OPENJDK_TARGET_CPU_ENDIAN"; then
 632     AC_MSG_ERROR([The tested endian in the target ($ENDIAN) differs from the endian expected to be found in the target ($OPENJDK_TARGET_CPU_ENDIAN)])
 633   fi
 634 ])