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)
  34       VAR_CPU=x86_64
  35       VAR_CPU_ARCH=x86
  36       VAR_CPU_BITS=64
  37       VAR_CPU_ENDIAN=little
  38       ;;
  39     i?86)
  40       VAR_CPU=x86
  41       VAR_CPU_ARCH=x86
  42       VAR_CPU_BITS=32
  43       VAR_CPU_ENDIAN=little
  44       ;;
  45     alpha*)
  46       VAR_CPU=alpha
  47       VAR_CPU_ARCH=alpha
  48       VAR_CPU_BITS=64
  49       VAR_CPU_ENDIAN=little
  50       ;;
  51     arm*)
  52       VAR_CPU=arm
  53       VAR_CPU_ARCH=arm
  54       VAR_CPU_BITS=32
  55       VAR_CPU_ENDIAN=little
  56       ;;
  57     aarch64)
  58       VAR_CPU=aarch64
  59       VAR_CPU_ARCH=aarch64
  60       VAR_CPU_BITS=64
  61       VAR_CPU_ENDIAN=little
  62       ;;
  63     ia64)
  64       VAR_CPU=ia64
  65       VAR_CPU_ARCH=ia64
  66       VAR_CPU_BITS=64
  67       VAR_CPU_ENDIAN=little
  68       ;;
  69     m68k)
  70       VAR_CPU=m68k
  71       VAR_CPU_ARCH=m68k
  72       VAR_CPU_BITS=32
  73       VAR_CPU_ENDIAN=big
  74       ;;
  75     mips)
  76       VAR_CPU=mips
  77       VAR_CPU_ARCH=mips
  78       VAR_CPU_BITS=32
  79       VAR_CPU_ENDIAN=big
  80       ;;
  81     mipsel)
  82       VAR_CPU=mipsel
  83       VAR_CPU_ARCH=mipsel
  84       VAR_CPU_BITS=32
  85       VAR_CPU_ENDIAN=little
  86       ;;
  87     mips64)
  88       VAR_CPU=mips64
  89       VAR_CPU_ARCH=mips64
  90       VAR_CPU_BITS=64
  91       VAR_CPU_ENDIAN=big
  92       ;;
  93     mips64el)
  94       VAR_CPU=mips64el
  95       VAR_CPU_ARCH=mips64el
  96       VAR_CPU_BITS=64
  97       VAR_CPU_ENDIAN=little
  98       ;;
  99     powerpc)
 100       VAR_CPU=ppc
 101       VAR_CPU_ARCH=ppc
 102       VAR_CPU_BITS=32
 103       VAR_CPU_ENDIAN=big
 104       ;;
 105     powerpc64)
 106       VAR_CPU=ppc64
 107       VAR_CPU_ARCH=ppc
 108       VAR_CPU_BITS=64
 109       VAR_CPU_ENDIAN=big
 110       ;;
 111     powerpc64le)
 112       VAR_CPU=ppc64le
 113       VAR_CPU_ARCH=ppc
 114       VAR_CPU_BITS=64
 115       VAR_CPU_ENDIAN=little
 116       ;;
 117     riscv64)
 118       VAR_CPU=riscv64
 119       VAR_CPU_ARCH=riscv
 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="$VAR_CPU_ENDIAN"
 271   AC_SUBST(OPENJDK_TARGET_OS)
 272   AC_SUBST(OPENJDK_TARGET_OS_TYPE)
 273   AC_SUBST(OPENJDK_TARGET_OS_ENV)
 274   AC_SUBST(OPENJDK_TARGET_CPU)
 275   AC_SUBST(OPENJDK_TARGET_CPU_ARCH)
 276   AC_SUBST(OPENJDK_TARGET_CPU_BITS)
 277   AC_SUBST(OPENJDK_TARGET_CPU_ENDIAN)
 278 
 279   AC_MSG_CHECKING([openjdk-target os-cpu])
 280   AC_MSG_RESULT([$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
 281 ])
 282 
 283 # Check if a reduced build (32-bit on 64-bit platforms) is requested, and modify behaviour
 284 # accordingly. Must be done after setting up build and target system, but before
 285 # doing anything else with these values.
 286 AC_DEFUN([PLATFORM_SETUP_TARGET_CPU_BITS],
 287 [
 288   AC_ARG_WITH(target-bits, [AS_HELP_STRING([--with-target-bits],
 289        [build 32-bit or 64-bit binaries (for platforms that support it), e.g. --with-target-bits=32 @<:@guessed@:>@])])
 290 
 291   # We have three types of compiles:
 292   # native  == normal compilation, target system == build system
 293   # cross   == traditional cross compilation, target system != build system; special toolchain needed
 294   # reduced == using native compilers, but with special flags (e.g. -m32) to produce 32-bit builds on 64-bit machines
 295   #
 296   if test "x$OPENJDK_BUILD_AUTOCONF_NAME" != "x$OPENJDK_TARGET_AUTOCONF_NAME"; then
 297     # We're doing a proper cross-compilation
 298     COMPILE_TYPE="cross"
 299   else
 300     COMPILE_TYPE="native"
 301   fi
 302 
 303   if test "x$with_target_bits" != x; then
 304     if test "x$COMPILE_TYPE" = "xcross"; then
 305       AC_MSG_ERROR([It is not possible to combine --with-target-bits=X and proper cross-compilation. Choose either.])
 306     fi
 307 
 308     if test "x$with_target_bits" = x32 && test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
 309       # A reduced build is requested
 310       COMPILE_TYPE="reduced"
 311       OPENJDK_TARGET_CPU_BITS=32
 312       if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
 313         OPENJDK_TARGET_CPU=x86
 314       elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
 315         OPENJDK_TARGET_CPU=sparc
 316       else
 317         AC_MSG_ERROR([Reduced build (--with-target-bits=32) is only supported on x86_64 and sparcv9])
 318       fi
 319     elif test "x$with_target_bits" = x64 && test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
 320       AC_MSG_ERROR([It is not possible to use --with-target-bits=64 on a 32 bit system. Use proper cross-compilation instead.])
 321     elif test "x$with_target_bits" = "x$OPENJDK_TARGET_CPU_BITS"; then
 322       AC_MSG_NOTICE([--with-target-bits are set to build platform address size; argument has no meaning])
 323     else
 324       AC_MSG_ERROR([--with-target-bits can only be 32 or 64, you specified $with_target_bits!])
 325     fi
 326   fi
 327   AC_SUBST(COMPILE_TYPE)
 328 
 329   AC_MSG_CHECKING([compilation type])
 330   AC_MSG_RESULT([$COMPILE_TYPE])
 331 ])
 332 
 333 # Setup the legacy variables, for controlling the old makefiles.
 334 #
 335 AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS],
 336 [
 337   PLATFORM_SETUP_LEGACY_VARS_HELPER([TARGET])
 338   PLATFORM_SETUP_LEGACY_VARS_HELPER([BUILD])
 339 ])
 340 
 341 # $1 - Either TARGET or BUILD to setup the variables for.
 342 AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS_HELPER],
 343 [
 344   # Also store the legacy naming of the cpu.
 345   # Ie i586 and amd64 instead of x86 and x86_64
 346   OPENJDK_$1_CPU_LEGACY="$OPENJDK_$1_CPU"
 347   if test "x$OPENJDK_$1_CPU" = xx86; then
 348     OPENJDK_$1_CPU_LEGACY="i586"
 349   elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
 350     # On all platforms except MacOSX replace x86_64 with amd64.
 351     OPENJDK_$1_CPU_LEGACY="amd64"
 352   elif test "x$OPENJDK_$1_CPU" = xalpha; then
 353     # Avoid name collisions with variables named alpha
 354     OPENJDK_$1_CPU_LEGACY="_alpha_"
 355   elif test "x$OPENJDK_$1_CPU" = xsh; then
 356     # Avoid name collisions with variables named sh
 357     OPENJDK_$1_CPU_LEGACY="_sh_"
 358   fi
 359   AC_SUBST(OPENJDK_$1_CPU_LEGACY)
 360 
 361   # And the second legacy naming of the cpu.
 362   # Ie i386 and amd64 instead of x86 and x86_64.
 363   OPENJDK_$1_CPU_LEGACY_LIB="$OPENJDK_$1_CPU"
 364   if test "x$OPENJDK_$1_CPU" = xx86; then
 365     OPENJDK_$1_CPU_LEGACY_LIB="i386"
 366   elif test "x$OPENJDK_$1_CPU" = xx86_64; then
 367     OPENJDK_$1_CPU_LEGACY_LIB="amd64"
 368   fi
 369   AC_SUBST(OPENJDK_$1_CPU_LEGACY_LIB)
 370 
 371   # OPENJDK_$1_CPU_ISADIR is normally empty. On 64-bit Solaris systems, it is set to
 372   # /amd64 or /sparcv9. This string is appended to some library paths, like this:
 373   # /usr/lib${OPENJDK_$1_CPU_ISADIR}/libexample.so
 374   OPENJDK_$1_CPU_ISADIR=""
 375   if test "x$OPENJDK_$1_OS" = xsolaris; then
 376     if test "x$OPENJDK_$1_CPU" = xx86_64; then
 377       OPENJDK_$1_CPU_ISADIR="/amd64"
 378     elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
 379       OPENJDK_$1_CPU_ISADIR="/sparcv9"
 380     fi
 381   fi
 382   AC_SUBST(OPENJDK_$1_CPU_ISADIR)
 383 
 384   # Setup OPENJDK_$1_CPU_OSARCH, which is used to set the os.arch Java system property
 385   OPENJDK_$1_CPU_OSARCH="$OPENJDK_$1_CPU"
 386   if test "x$OPENJDK_$1_OS" = xlinux && test "x$OPENJDK_$1_CPU" = xx86; then
 387     # On linux only, we replace x86 with i386.
 388     OPENJDK_$1_CPU_OSARCH="i386"
 389   elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
 390     # On all platforms except macosx, we replace x86_64 with amd64.
 391     OPENJDK_$1_CPU_OSARCH="amd64"
 392   fi
 393   AC_SUBST(OPENJDK_$1_CPU_OSARCH)
 394 
 395   OPENJDK_$1_CPU_JLI="$OPENJDK_$1_CPU"
 396   if test "x$OPENJDK_$1_CPU" = xx86; then
 397     OPENJDK_$1_CPU_JLI="i386"
 398   elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
 399     # On all platforms except macosx, we replace x86_64 with amd64.
 400     OPENJDK_$1_CPU_JLI="amd64"
 401   fi
 402 
 403   # The new version string in JDK 9 also defined new naming of OS and ARCH for bundles
 404   # Macosx is osx and x86_64 is x64
 405   if test "x$OPENJDK_$1_OS" = xmacosx; then
 406     OPENJDK_$1_OS_BUNDLE="osx"
 407   else
 408     OPENJDK_$1_OS_BUNDLE="$OPENJDK_TARGET_OS"
 409   fi
 410   if test "x$OPENJDK_$1_CPU" = xx86_64; then
 411     OPENJDK_$1_CPU_BUNDLE="x64"
 412   else
 413     OPENJDK_$1_CPU_BUNDLE="$OPENJDK_$1_CPU"
 414   fi
 415   OPENJDK_$1_BUNDLE_PLATFORM="${OPENJDK_$1_OS_BUNDLE}-${OPENJDK_$1_CPU_BUNDLE}"
 416   AC_SUBST(OPENJDK_$1_BUNDLE_PLATFORM)
 417 
 418   if test "x$COMPILE_TYPE" = "xcross"; then
 419     # FIXME: ... or should this include reduced builds..?
 420     DEFINE_CROSS_COMPILE_ARCH="CROSS_COMPILE_ARCH:=$OPENJDK_$1_CPU_LEGACY"
 421   else
 422     DEFINE_CROSS_COMPILE_ARCH=""
 423   fi
 424   AC_SUBST(DEFINE_CROSS_COMPILE_ARCH)
 425 
 426   # Convert openjdk platform names to hotspot names
 427 
 428   HOTSPOT_$1_OS=${OPENJDK_$1_OS}
 429   if test "x$OPENJDK_$1_OS" = xmacosx; then
 430     HOTSPOT_$1_OS=bsd
 431   fi
 432   AC_SUBST(HOTSPOT_$1_OS)
 433 
 434   HOTSPOT_$1_OS_TYPE=${OPENJDK_$1_OS_TYPE}
 435   if test "x$OPENJDK_$1_OS_TYPE" = xunix; then
 436     HOTSPOT_$1_OS_TYPE=posix
 437   fi
 438   AC_SUBST(HOTSPOT_$1_OS_TYPE)
 439 
 440   HOTSPOT_$1_CPU=${OPENJDK_$1_CPU}
 441   if test "x$OPENJDK_$1_CPU" = xx86; then
 442     HOTSPOT_$1_CPU=x86_32
 443   elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
 444     HOTSPOT_$1_CPU=sparc
 445   elif test "x$OPENJDK_$1_CPU" = xppc64; then
 446     HOTSPOT_$1_CPU=ppc_64
 447   elif test "x$OPENJDK_$1_CPU" = xppc64le; then
 448     HOTSPOT_$1_CPU=ppc_64
 449   fi
 450   AC_SUBST(HOTSPOT_$1_CPU)
 451 
 452   # This is identical with OPENJDK_*, but define anyway for consistency.
 453   HOTSPOT_$1_CPU_ARCH=${OPENJDK_$1_CPU_ARCH}
 454   AC_SUBST(HOTSPOT_$1_CPU_ARCH)
 455 
 456   # Setup HOTSPOT_$1_CPU_DEFINE
 457   if test "x$OPENJDK_$1_CPU" = xx86; then
 458     HOTSPOT_$1_CPU_DEFINE=IA32
 459   elif test "x$OPENJDK_$1_CPU" = xx86_64; then
 460     HOTSPOT_$1_CPU_DEFINE=AMD64
 461   elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
 462     HOTSPOT_$1_CPU_DEFINE=SPARC
 463   elif test "x$OPENJDK_$1_CPU" = xaarch64; then
 464     HOTSPOT_$1_CPU_DEFINE=AARCH64
 465   elif test "x$OPENJDK_$1_CPU" = xppc64; then
 466     HOTSPOT_$1_CPU_DEFINE=PPC64
 467   elif test "x$OPENJDK_$1_CPU" = xppc64le; then
 468     HOTSPOT_$1_CPU_DEFINE=PPC64
 469 
 470   # The cpu defines below are for zero, we don't support them directly.
 471   elif test "x$OPENJDK_$1_CPU" = xsparc; then
 472     HOTSPOT_$1_CPU_DEFINE=SPARC
 473   elif test "x$OPENJDK_$1_CPU" = xppc; then
 474     HOTSPOT_$1_CPU_DEFINE=PPC32
 475   elif test "x$OPENJDK_$1_CPU" = xriscv64; then
 476     HOTSPOT_$1_CPU_DEFINE=RISCV64
 477   elif test "x$OPENJDK_$1_CPU" = xs390; then
 478     HOTSPOT_$1_CPU_DEFINE=S390
 479   elif test "x$OPENJDK_$1_CPU" = xs390x; then
 480     HOTSPOT_$1_CPU_DEFINE=S390
 481   elif test "x$OPENJDK_$1_CPU" != x; then
 482     HOTSPOT_$1_CPU_DEFINE=$(echo $OPENJDK_$1_CPU | tr a-z A-Z)
 483   fi
 484   AC_SUBST(HOTSPOT_$1_CPU_DEFINE)
 485 
 486   # For historical reasons, the OS include directories have odd names.
 487   OPENJDK_$1_OS_INCLUDE_SUBDIR="$OPENJDK_TARGET_OS"
 488   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
 489     OPENJDK_$1_OS_INCLUDE_SUBDIR="win32"
 490   elif test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
 491     OPENJDK_$1_OS_INCLUDE_SUBDIR="darwin"
 492   fi
 493   AC_SUBST(OPENJDK_$1_OS_INCLUDE_SUBDIR)
 494 ])
 495 
 496 AC_DEFUN([PLATFORM_SET_RELEASE_FILE_OS_VALUES],
 497 [
 498   if test "x$OPENJDK_TARGET_OS" = "xsolaris"; then
 499     RELEASE_FILE_OS_NAME=SunOS
 500   fi
 501   if test "x$OPENJDK_TARGET_OS" = "xlinux"; then
 502     RELEASE_FILE_OS_NAME=Linux
 503   fi
 504   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
 505     RELEASE_FILE_OS_NAME=Windows
 506   fi
 507   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
 508     RELEASE_FILE_OS_NAME="Darwin"
 509   fi
 510   if test "x$OPENJDK_TARGET_OS" = "xaix"; then
 511     RELEASE_FILE_OS_NAME="AIX"
 512   fi
 513   RELEASE_FILE_OS_ARCH=${OPENJDK_TARGET_CPU}
 514 
 515   AC_SUBST(RELEASE_FILE_OS_NAME)
 516   AC_SUBST(RELEASE_FILE_OS_ARCH)
 517 ])
 518 
 519 AC_DEFUN([PLATFORM_SET_MODULE_TARGET_OS_VALUES],
 520 [
 521   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
 522     OPENJDK_MODULE_TARGET_OS_NAME="macos"
 523   else
 524     OPENJDK_MODULE_TARGET_OS_NAME="$OPENJDK_TARGET_OS"
 525   fi
 526 
 527   if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
 528     OPENJDK_MODULE_TARGET_OS_ARCH="amd64"
 529   else
 530     OPENJDK_MODULE_TARGET_OS_ARCH="$OPENJDK_TARGET_CPU"
 531   fi
 532 
 533   OPENJDK_MODULE_TARGET_PLATFORM="${OPENJDK_MODULE_TARGET_OS_NAME}-${OPENJDK_MODULE_TARGET_OS_ARCH}"
 534   AC_SUBST(OPENJDK_MODULE_TARGET_PLATFORM)
 535 ])
 536 
 537 #%%% Build and target systems %%%
 538 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_AND_TARGET],
 539 [
 540   # Figure out the build and target systems. # Note that in autoconf terminology, "build" is obvious, but "target"
 541   # is confusing; it assumes you are cross-compiling a cross-compiler (!)  and "target" is thus the target of the
 542   # product you're building. The target of this build is called "host". Since this is confusing to most people, we
 543   # have not adopted that system, but use "target" as the platform we are building for. In some places though we need
 544   # to use the configure naming style.
 545   AC_CANONICAL_BUILD
 546   AC_CANONICAL_HOST
 547   AC_CANONICAL_TARGET
 548 
 549   PLATFORM_EXTRACT_TARGET_AND_BUILD
 550   PLATFORM_SETUP_TARGET_CPU_BITS
 551   PLATFORM_SET_MODULE_TARGET_OS_VALUES
 552   PLATFORM_SET_RELEASE_FILE_OS_VALUES
 553   PLATFORM_SETUP_LEGACY_VARS
 554 ])
 555 
 556 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_OS_VERSION],
 557 [
 558   ###############################################################################
 559 
 560   # Note that this is the build platform OS version!
 561 
 562   OS_VERSION="`uname -r | ${SED} 's!\.! !g' | ${SED} 's!-! !g'`"
 563   OS_VERSION_MAJOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 1 -d ' '`"
 564   OS_VERSION_MINOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 2 -d ' '`"
 565   OS_VERSION_MICRO="`${ECHO} ${OS_VERSION} | ${CUT} -f 3 -d ' '`"
 566   AC_SUBST(OS_VERSION_MAJOR)
 567   AC_SUBST(OS_VERSION_MINOR)
 568   AC_SUBST(OS_VERSION_MICRO)
 569 ])
 570 
 571 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_BITS],
 572 [
 573   ###############################################################################
 574   #
 575   # Now we check if libjvm.so will use 32 or 64 bit pointers for the C/C++ code.
 576   # (The JVM can use 32 or 64 bit Java pointers but that decision
 577   # is made at runtime.)
 578   #
 579 
 580   # Make compilation sanity check
 581   AC_CHECK_HEADERS([stdio.h], , [
 582     AC_MSG_NOTICE([Failed to compile stdio.h. This likely implies missing compile dependencies.])
 583     if test "x$COMPILE_TYPE" = xreduced; then
 584       HELP_MSG_MISSING_DEPENDENCY([reduced])
 585       AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed. $HELP_MSG])
 586     elif test "x$COMPILE_TYPE" = xcross; then
 587       AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.])
 588     fi
 589     AC_MSG_ERROR([Cannot continue.])
 590   ])
 591 
 592   AC_CHECK_SIZEOF([int *], [1111])
 593 
 594   # AC_CHECK_SIZEOF defines 'ac_cv_sizeof_int_p' to hold the number of bytes used by an 'int*'
 595   if test "x$ac_cv_sizeof_int_p" = x; then
 596     # The test failed, lets stick to the assumed value.
 597     AC_MSG_WARN([The number of bits in the target could not be determined, using $OPENJDK_TARGET_CPU_BITS.])
 598   else
 599     TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p`
 600 
 601     if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then
 602       AC_MSG_NOTICE([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS)])
 603       if test "x$COMPILE_TYPE" = xreduced; then
 604         HELP_MSG_MISSING_DEPENDENCY([reduced])
 605         AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed. $HELP_MSG])
 606       elif test "x$COMPILE_TYPE" = xcross; then
 607         AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.])
 608       fi
 609       AC_MSG_ERROR([Cannot continue.])
 610     fi
 611   fi
 612 
 613   AC_MSG_CHECKING([for target address size])
 614   AC_MSG_RESULT([$OPENJDK_TARGET_CPU_BITS bits])
 615 ])
 616 
 617 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_ENDIANNESS],
 618 [
 619   ###############################################################################
 620   #
 621   # Is the target little of big endian?
 622   #
 623   AC_C_BIGENDIAN([ENDIAN="big"],[ENDIAN="little"],[ENDIAN="unknown"],[ENDIAN="universal_endianness"])
 624 
 625   if test "x$ENDIAN" = xuniversal_endianness; then
 626     AC_MSG_ERROR([Building with both big and little endianness is not supported])
 627   fi
 628   if test "x$ENDIAN" != "x$OPENJDK_TARGET_CPU_ENDIAN"; then
 629     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)])
 630   fi
 631 ])