1 #
   2 # Copyright (c) 2011, 2017, 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     m68k)
  64       VAR_CPU=m68k
  65       VAR_CPU_ARCH=m68k
  66       VAR_CPU_BITS=32
  67       VAR_CPU_ENDIAN=big
  68       ;;
  69     mips)
  70       VAR_CPU=mips
  71       VAR_CPU_ARCH=mips
  72       VAR_CPU_BITS=32
  73       VAR_CPU_ENDIAN=big
  74       ;;
  75     mipsel)
  76       VAR_CPU=mipsel
  77       VAR_CPU_ARCH=mipsel
  78       VAR_CPU_BITS=32
  79       VAR_CPU_ENDIAN=little
  80       ;;
  81     mips64)
  82       VAR_CPU=mips64
  83       VAR_CPU_ARCH=mips64
  84       VAR_CPU_BITS=64
  85       VAR_CPU_ENDIAN=big
  86       ;;
  87     mips64el)
  88       VAR_CPU=mips64el
  89       VAR_CPU_ARCH=mips64el
  90       VAR_CPU_BITS=64
  91       VAR_CPU_ENDIAN=little
  92       ;;
  93     powerpc)
  94       VAR_CPU=ppc
  95       VAR_CPU_ARCH=ppc
  96       VAR_CPU_BITS=32
  97       VAR_CPU_ENDIAN=big
  98       ;;
  99     powerpc64)
 100       VAR_CPU=ppc64
 101       VAR_CPU_ARCH=ppc
 102       VAR_CPU_BITS=64
 103       VAR_CPU_ENDIAN=big
 104       ;;
 105     powerpc64le)
 106       VAR_CPU=ppc64le
 107       VAR_CPU_ARCH=ppc
 108       VAR_CPU_BITS=64
 109       VAR_CPU_ENDIAN=little
 110       ;;
 111     s390)
 112       VAR_CPU=s390
 113       VAR_CPU_ARCH=s390
 114       VAR_CPU_BITS=32
 115       VAR_CPU_ENDIAN=big
 116       ;;
 117     s390x)
 118       VAR_CPU=s390x
 119       VAR_CPU_ARCH=s390
 120       VAR_CPU_BITS=64
 121       VAR_CPU_ENDIAN=big
 122       ;;
 123     sh*eb)
 124       VAR_CPU=sh
 125       VAR_CPU_ARCH=sh
 126       VAR_CPU_BITS=32
 127       VAR_CPU_ENDIAN=big
 128       ;;
 129     sh*)
 130       VAR_CPU=sh
 131       VAR_CPU_ARCH=sh
 132       VAR_CPU_BITS=32
 133       VAR_CPU_ENDIAN=little
 134       ;;
 135     sparc)
 136       VAR_CPU=sparc
 137       VAR_CPU_ARCH=sparc
 138       VAR_CPU_BITS=32
 139       VAR_CPU_ENDIAN=big
 140       ;;
 141     sparcv9|sparc64)
 142       VAR_CPU=sparcv9
 143       VAR_CPU_ARCH=sparc
 144       VAR_CPU_BITS=64
 145       VAR_CPU_ENDIAN=big
 146       ;;
 147     *)
 148       AC_MSG_ERROR([unsupported cpu $1])
 149       ;;
 150   esac
 151 ])
 152 
 153 # Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
 154 # Converts autoconf style OS name to OpenJDK style, into
 155 # VAR_OS, VAR_OS_TYPE and VAR_OS_ENV.
 156 AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_OS],
 157 [
 158   case "$1" in
 159     *linux*)
 160       VAR_OS=linux
 161       VAR_OS_TYPE=unix
 162       ;;
 163     *solaris*)
 164       VAR_OS=solaris
 165       VAR_OS_TYPE=unix
 166       ;;
 167     *darwin*)
 168       VAR_OS=macosx
 169       VAR_OS_TYPE=unix
 170       ;;
 171     *bsd*)
 172       VAR_OS=bsd
 173       VAR_OS_TYPE=unix
 174       ;;
 175     *cygwin*)
 176       VAR_OS=windows
 177       VAR_OS_ENV=windows.cygwin
 178       ;;
 179     *mingw*)
 180       VAR_OS=windows
 181       VAR_OS_ENV=windows.msys
 182       ;;
 183     *wsl*)
 184       VAR_OS=windows
 185       VAR_OS_ENV=windows.wsl
 186       ;;
 187     *aix*)
 188       VAR_OS=aix
 189       VAR_OS_TYPE=unix
 190       ;;
 191     *)
 192       AC_MSG_ERROR([unsupported operating system $1])
 193       ;;
 194   esac
 195 ])
 196 
 197 # Expects $host_os $host_cpu $build_os and $build_cpu
 198 # and $with_target_bits to have been setup!
 199 #
 200 # Translate the standard triplet(quadruplet) definition
 201 # of the target/build system into OPENJDK_TARGET_OS, OPENJDK_TARGET_CPU,
 202 # OPENJDK_BUILD_OS, etc.
 203 AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
 204 [
 205   # Copy the autoconf trip/quadruplet verbatim to OPENJDK_TARGET_AUTOCONF_NAME
 206   # (from the autoconf "host") and OPENJDK_BUILD_AUTOCONF_NAME
 207   # Note that we might later on rewrite e.g. OPENJDK_TARGET_CPU due to reduced build,
 208   # but this will not change the value of OPENJDK_TARGET_AUTOCONF_NAME.
 209   OPENJDK_TARGET_AUTOCONF_NAME="$host"
 210   OPENJDK_BUILD_AUTOCONF_NAME="$build"
 211   AC_SUBST(OPENJDK_TARGET_AUTOCONF_NAME)
 212   AC_SUBST(OPENJDK_BUILD_AUTOCONF_NAME)
 213 
 214   # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
 215   PLATFORM_EXTRACT_VARS_FROM_OS($build_os)
 216   PLATFORM_EXTRACT_VARS_FROM_CPU($build_cpu)
 217   # ..and setup our own variables. (Do this explicitly to facilitate searching)
 218   OPENJDK_BUILD_OS="$VAR_OS"
 219   if test "x$VAR_OS_TYPE" != x; then
 220     OPENJDK_BUILD_OS_TYPE="$VAR_OS_TYPE"
 221   else
 222     OPENJDK_BUILD_OS_TYPE="$VAR_OS"
 223   fi
 224   if test "x$VAR_OS_ENV" != x; then
 225     OPENJDK_BUILD_OS_ENV="$VAR_OS_ENV"
 226   else
 227     OPENJDK_BUILD_OS_ENV="$VAR_OS"
 228   fi
 229   OPENJDK_BUILD_CPU="$VAR_CPU"
 230   OPENJDK_BUILD_CPU_ARCH="$VAR_CPU_ARCH"
 231   OPENJDK_BUILD_CPU_BITS="$VAR_CPU_BITS"
 232   OPENJDK_BUILD_CPU_ENDIAN="$VAR_CPU_ENDIAN"
 233   AC_SUBST(OPENJDK_BUILD_OS)
 234   AC_SUBST(OPENJDK_BUILD_OS_TYPE)
 235   AC_SUBST(OPENJDK_BUILD_OS_ENV)
 236   AC_SUBST(OPENJDK_BUILD_CPU)
 237   AC_SUBST(OPENJDK_BUILD_CPU_ARCH)
 238   AC_SUBST(OPENJDK_BUILD_CPU_BITS)
 239   AC_SUBST(OPENJDK_BUILD_CPU_ENDIAN)
 240 
 241   AC_MSG_CHECKING([openjdk-build os-cpu])
 242   AC_MSG_RESULT([$OPENJDK_BUILD_OS-$OPENJDK_BUILD_CPU])
 243 
 244   # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
 245   PLATFORM_EXTRACT_VARS_FROM_OS($host_os)
 246   PLATFORM_EXTRACT_VARS_FROM_CPU($host_cpu)
 247   # ... and setup our own variables. (Do this explicitly to facilitate searching)
 248   OPENJDK_TARGET_OS="$VAR_OS"
 249   if test "x$VAR_OS_TYPE" != x; then
 250     OPENJDK_TARGET_OS_TYPE="$VAR_OS_TYPE"
 251   else
 252     OPENJDK_TARGET_OS_TYPE="$VAR_OS"
 253   fi
 254   if test "x$VAR_OS_ENV" != x; then
 255     OPENJDK_TARGET_OS_ENV="$VAR_OS_ENV"
 256   else
 257     OPENJDK_TARGET_OS_ENV="$VAR_OS"
 258   fi
 259   OPENJDK_TARGET_CPU="$VAR_CPU"
 260   OPENJDK_TARGET_CPU_ARCH="$VAR_CPU_ARCH"
 261   OPENJDK_TARGET_CPU_BITS="$VAR_CPU_BITS"
 262   OPENJDK_TARGET_CPU_ENDIAN="$VAR_CPU_ENDIAN"
 263   AC_SUBST(OPENJDK_TARGET_OS)
 264   AC_SUBST(OPENJDK_TARGET_OS_TYPE)
 265   AC_SUBST(OPENJDK_TARGET_OS_ENV)
 266   AC_SUBST(OPENJDK_TARGET_CPU)
 267   AC_SUBST(OPENJDK_TARGET_CPU_ARCH)
 268   AC_SUBST(OPENJDK_TARGET_CPU_BITS)
 269   AC_SUBST(OPENJDK_TARGET_CPU_ENDIAN)
 270 
 271   AC_MSG_CHECKING([openjdk-target os-cpu])
 272   AC_MSG_RESULT([$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
 273 ])
 274 
 275 # Check if a reduced build (32-bit on 64-bit platforms) is requested, and modify behaviour
 276 # accordingly. Must be done after setting up build and target system, but before
 277 # doing anything else with these values.
 278 AC_DEFUN([PLATFORM_SETUP_TARGET_CPU_BITS],
 279 [
 280   AC_ARG_WITH(target-bits, [AS_HELP_STRING([--with-target-bits],
 281        [build 32-bit or 64-bit binaries (for platforms that support it), e.g. --with-target-bits=32 @<:@guessed@:>@])])
 282 
 283   # We have three types of compiles:
 284   # native  == normal compilation, target system == build system
 285   # cross   == traditional cross compilation, target system != build system; special toolchain needed
 286   # reduced == using native compilers, but with special flags (e.g. -m32) to produce 32-bit builds on 64-bit machines
 287   #
 288   if test "x$OPENJDK_BUILD_AUTOCONF_NAME" != "x$OPENJDK_TARGET_AUTOCONF_NAME"; then
 289     # We're doing a proper cross-compilation
 290     COMPILE_TYPE="cross"
 291   else
 292     COMPILE_TYPE="native"
 293   fi
 294 
 295   if test "x$with_target_bits" != x; then
 296     if test "x$COMPILE_TYPE" = "xcross"; then
 297       AC_MSG_ERROR([It is not possible to combine --with-target-bits=X and proper cross-compilation. Choose either.])
 298     fi
 299 
 300     if test "x$with_target_bits" = x32 && test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
 301       # A reduced build is requested
 302       COMPILE_TYPE="reduced"
 303       OPENJDK_TARGET_CPU_BITS=32
 304       if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
 305         OPENJDK_TARGET_CPU=x86
 306       elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
 307         OPENJDK_TARGET_CPU=sparc
 308       else
 309         AC_MSG_ERROR([Reduced build (--with-target-bits=32) is only supported on x86_64 and sparcv9])
 310       fi
 311     elif test "x$with_target_bits" = x64 && test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
 312       AC_MSG_ERROR([It is not possible to use --with-target-bits=64 on a 32 bit system. Use proper cross-compilation instead.])
 313     elif test "x$with_target_bits" = "x$OPENJDK_TARGET_CPU_BITS"; then
 314       AC_MSG_NOTICE([--with-target-bits are set to build platform address size; argument has no meaning])
 315     else
 316       AC_MSG_ERROR([--with-target-bits can only be 32 or 64, you specified $with_target_bits!])
 317     fi
 318   fi
 319   AC_SUBST(COMPILE_TYPE)
 320 
 321   AC_MSG_CHECKING([compilation type])
 322   AC_MSG_RESULT([$COMPILE_TYPE])
 323 ])
 324 
 325 # Setup the legacy variables, for controlling the old makefiles.
 326 #
 327 AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS],
 328 [
 329   PLATFORM_SETUP_LEGACY_VARS_HELPER([TARGET])
 330   PLATFORM_SETUP_LEGACY_VARS_HELPER([BUILD])
 331 ])
 332 
 333 # $1 - Either TARGET or BUILD to setup the variables for.
 334 AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS_HELPER],
 335 [
 336   # Also store the legacy naming of the cpu.
 337   # Ie i586 and amd64 instead of x86 and x86_64
 338   OPENJDK_$1_CPU_LEGACY="$OPENJDK_$1_CPU"
 339   if test "x$OPENJDK_$1_CPU" = xx86; then
 340     OPENJDK_$1_CPU_LEGACY="i586"
 341   elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
 342     # On all platforms except MacOSX replace x86_64 with amd64.
 343     OPENJDK_$1_CPU_LEGACY="amd64"
 344   elif test "x$OPENJDK_$1_CPU" = xalpha; then
 345     # Avoid name collisions with variables named alpha
 346     OPENJDK_$1_CPU_LEGACY="_alpha_"
 347   elif test "x$OPENJDK_$1_CPU" = xsh; then
 348     # Avoid name collisions with variables named sh
 349     OPENJDK_$1_CPU_LEGACY="_sh_"
 350   fi
 351   AC_SUBST(OPENJDK_$1_CPU_LEGACY)
 352 
 353   # And the second legacy naming of the cpu.
 354   # Ie i386 and amd64 instead of x86 and x86_64.
 355   OPENJDK_$1_CPU_LEGACY_LIB="$OPENJDK_$1_CPU"
 356   if test "x$OPENJDK_$1_CPU" = xx86; then
 357     OPENJDK_$1_CPU_LEGACY_LIB="i386"
 358   elif test "x$OPENJDK_$1_CPU" = xx86_64; then
 359     OPENJDK_$1_CPU_LEGACY_LIB="amd64"
 360   fi
 361   AC_SUBST(OPENJDK_$1_CPU_LEGACY_LIB)
 362 
 363   # OPENJDK_$1_CPU_ISADIR is normally empty. On 64-bit Solaris systems, it is set to
 364   # /amd64 or /sparcv9. This string is appended to some library paths, like this:
 365   # /usr/lib${OPENJDK_$1_CPU_ISADIR}/libexample.so
 366   OPENJDK_$1_CPU_ISADIR=""
 367   if test "x$OPENJDK_$1_OS" = xsolaris; then
 368     if test "x$OPENJDK_$1_CPU" = xx86_64; then
 369       OPENJDK_$1_CPU_ISADIR="/amd64"
 370     elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
 371       OPENJDK_$1_CPU_ISADIR="/sparcv9"
 372     fi
 373   fi
 374   AC_SUBST(OPENJDK_$1_CPU_ISADIR)
 375 
 376   # Setup OPENJDK_$1_CPU_OSARCH, which is used to set the os.arch Java system property
 377   OPENJDK_$1_CPU_OSARCH="$OPENJDK_$1_CPU"
 378   if test "x$OPENJDK_$1_OS" = xlinux && test "x$OPENJDK_$1_CPU" = xx86; then
 379     # On linux only, we replace x86 with i386.
 380     OPENJDK_$1_CPU_OSARCH="i386"
 381   elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
 382     # On all platforms except macosx, we replace x86_64 with amd64.
 383     OPENJDK_$1_CPU_OSARCH="amd64"
 384   fi
 385   AC_SUBST(OPENJDK_$1_CPU_OSARCH)
 386 
 387   OPENJDK_$1_CPU_JLI="$OPENJDK_$1_CPU"
 388   if test "x$OPENJDK_$1_CPU" = xx86; then
 389     OPENJDK_$1_CPU_JLI="i386"
 390   elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
 391     # On all platforms except macosx, we replace x86_64 with amd64.
 392     OPENJDK_$1_CPU_JLI="amd64"
 393   fi
 394 
 395   # The new version string in JDK 9 also defined new naming of OS and ARCH for bundles
 396   # Macosx is osx and x86_64 is x64
 397   if test "x$OPENJDK_$1_OS" = xmacosx; then
 398     OPENJDK_$1_OS_BUNDLE="osx"
 399   else
 400     OPENJDK_$1_OS_BUNDLE="$OPENJDK_TARGET_OS"
 401   fi
 402   if test "x$OPENJDK_$1_CPU" = xx86_64; then
 403     OPENJDK_$1_CPU_BUNDLE="x64"
 404   else
 405     OPENJDK_$1_CPU_BUNDLE="$OPENJDK_$1_CPU"
 406   fi
 407   OPENJDK_$1_BUNDLE_PLATFORM="${OPENJDK_$1_OS_BUNDLE}-${OPENJDK_$1_CPU_BUNDLE}"
 408   AC_SUBST(OPENJDK_$1_BUNDLE_PLATFORM)
 409 
 410   if test "x$OPENJDK_$1_CPU_BITS" = x64; then
 411     # -D_LP64=1 is only set on linux and mac. Setting on windows causes diff in
 412     # unpack200.exe. This variable is used in
 413     # FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK_HELPER.
 414     if test "x$OPENJDK_$1_OS" = xlinux || test "x$OPENJDK_$1_OS" = xmacosx; then
 415       OPENJDK_$1_ADD_LP64="-D_LP64=1"
 416     fi
 417   fi
 418 
 419   if test "x$COMPILE_TYPE" = "xcross"; then
 420     # FIXME: ... or should this include reduced builds..?
 421     DEFINE_CROSS_COMPILE_ARCH="CROSS_COMPILE_ARCH:=$OPENJDK_$1_CPU_LEGACY"
 422   else
 423     DEFINE_CROSS_COMPILE_ARCH=""
 424   fi
 425   AC_SUBST(DEFINE_CROSS_COMPILE_ARCH)
 426 
 427   # Convert openjdk platform names to hotspot names
 428 
 429   HOTSPOT_$1_OS=${OPENJDK_$1_OS}
 430   if test "x$OPENJDK_$1_OS" = xmacosx; then
 431     HOTSPOT_$1_OS=bsd
 432   fi
 433   AC_SUBST(HOTSPOT_$1_OS)
 434 
 435   HOTSPOT_$1_OS_TYPE=${OPENJDK_$1_OS_TYPE}
 436   if test "x$OPENJDK_$1_OS_TYPE" = xunix; then
 437     HOTSPOT_$1_OS_TYPE=posix
 438   fi
 439   AC_SUBST(HOTSPOT_$1_OS_TYPE)
 440 
 441   HOTSPOT_$1_CPU=${OPENJDK_$1_CPU}
 442   if test "x$OPENJDK_$1_CPU" = xx86; then
 443     HOTSPOT_$1_CPU=x86_32
 444   elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
 445     HOTSPOT_$1_CPU=sparc
 446   elif test "x$OPENJDK_$1_CPU" = xppc64; then
 447     HOTSPOT_$1_CPU=ppc_64
 448   elif test "x$OPENJDK_$1_CPU" = xppc64le; then
 449     HOTSPOT_$1_CPU=ppc_64
 450   fi
 451   AC_SUBST(HOTSPOT_$1_CPU)
 452 
 453   # This is identical with OPENJDK_*, but define anyway for consistency.
 454   HOTSPOT_$1_CPU_ARCH=${OPENJDK_$1_CPU_ARCH}
 455   AC_SUBST(HOTSPOT_$1_CPU_ARCH)
 456 
 457   # Setup HOTSPOT_$1_CPU_DEFINE
 458   if test "x$OPENJDK_$1_CPU" = xx86; then
 459     HOTSPOT_$1_CPU_DEFINE=IA32
 460   elif test "x$OPENJDK_$1_CPU" = xx86_64; then
 461     HOTSPOT_$1_CPU_DEFINE=AMD64
 462   elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
 463     HOTSPOT_$1_CPU_DEFINE=SPARC
 464   elif test "x$OPENJDK_$1_CPU" = xaarch64; then
 465     HOTSPOT_$1_CPU_DEFINE=AARCH64
 466   elif test "x$OPENJDK_$1_CPU" = xppc64; then
 467     HOTSPOT_$1_CPU_DEFINE=PPC64
 468   elif test "x$OPENJDK_$1_CPU" = xppc64le; then
 469     HOTSPOT_$1_CPU_DEFINE=PPC64
 470 
 471   # The cpu defines below are for zero, we don't support them directly.
 472   elif test "x$OPENJDK_$1_CPU" = xsparc; then
 473     HOTSPOT_$1_CPU_DEFINE=SPARC
 474   elif test "x$OPENJDK_$1_CPU" = xppc; then
 475     HOTSPOT_$1_CPU_DEFINE=PPC32
 476   elif test "x$OPENJDK_$1_CPU" = xs390; then
 477     HOTSPOT_$1_CPU_DEFINE=S390
 478   elif test "x$OPENJDK_$1_CPU" = xs390x; then
 479     HOTSPOT_$1_CPU_DEFINE=S390
 480   elif test "x$OPENJDK_$1_CPU" != x; then
 481     HOTSPOT_$1_CPU_DEFINE=$(echo $OPENJDK_$1_CPU | tr a-z A-Z)
 482   fi
 483   AC_SUBST(HOTSPOT_$1_CPU_DEFINE)
 484 
 485   # For historical reasons, the OS include directories have odd names.
 486   OPENJDK_$1_OS_INCLUDE_SUBDIR="$OPENJDK_TARGET_OS"
 487   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
 488     OPENJDK_$1_OS_INCLUDE_SUBDIR="win32"
 489   elif test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
 490     OPENJDK_$1_OS_INCLUDE_SUBDIR="darwin"
 491   fi
 492   AC_SUBST(OPENJDK_$1_OS_INCLUDE_SUBDIR)
 493 ])
 494 
 495 AC_DEFUN([PLATFORM_SET_RELEASE_FILE_OS_VALUES],
 496 [
 497   if test "x$OPENJDK_TARGET_OS" = "xsolaris"; then
 498     RELEASE_FILE_OS_NAME=SunOS
 499   fi
 500   if test "x$OPENJDK_TARGET_OS" = "xlinux"; then
 501     RELEASE_FILE_OS_NAME=Linux
 502   fi
 503   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
 504     RELEASE_FILE_OS_NAME=Windows
 505   fi
 506   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
 507     RELEASE_FILE_OS_NAME="Darwin"
 508   fi
 509   if test "x$OPENJDK_TARGET_OS" = "xaix"; then
 510     RELEASE_FILE_OS_NAME="AIX"
 511   fi
 512   RELEASE_FILE_OS_ARCH=${OPENJDK_TARGET_CPU}
 513 
 514   AC_SUBST(RELEASE_FILE_OS_NAME)
 515   AC_SUBST(RELEASE_FILE_OS_ARCH)
 516 ])
 517 
 518 AC_DEFUN([PLATFORM_SET_MODULE_TARGET_OS_VALUES],
 519 [
 520   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
 521     OPENJDK_MODULE_TARGET_OS_NAME="macos"
 522   else
 523     OPENJDK_MODULE_TARGET_OS_NAME="$OPENJDK_TARGET_OS"
 524   fi
 525 
 526   if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
 527     OPENJDK_MODULE_TARGET_OS_ARCH="amd64"
 528   else
 529     OPENJDK_MODULE_TARGET_OS_ARCH="$OPENJDK_TARGET_CPU"
 530   fi
 531 
 532   OPENJDK_MODULE_TARGET_PLATFORM="${OPENJDK_MODULE_TARGET_OS_NAME}-${OPENJDK_MODULE_TARGET_OS_ARCH}"
 533   AC_SUBST(OPENJDK_MODULE_TARGET_PLATFORM)
 534 ])
 535 
 536 #%%% Build and target systems %%%
 537 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_AND_TARGET],
 538 [
 539   # Figure out the build and target systems. # Note that in autoconf terminology, "build" is obvious, but "target"
 540   # is confusing; it assumes you are cross-compiling a cross-compiler (!)  and "target" is thus the target of the
 541   # product you're building. The target of this build is called "host". Since this is confusing to most people, we
 542   # have not adopted that system, but use "target" as the platform we are building for. In some places though we need
 543   # to use the configure naming style.
 544   AC_CANONICAL_BUILD
 545   AC_CANONICAL_HOST
 546   AC_CANONICAL_TARGET
 547 
 548   PLATFORM_EXTRACT_TARGET_AND_BUILD
 549   PLATFORM_SETUP_TARGET_CPU_BITS
 550   PLATFORM_SET_MODULE_TARGET_OS_VALUES
 551   PLATFORM_SET_RELEASE_FILE_OS_VALUES
 552   PLATFORM_SETUP_LEGACY_VARS
 553 ])
 554 
 555 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_OS_VERSION],
 556 [
 557   ###############################################################################
 558 
 559   # Note that this is the build platform OS version!
 560 
 561   OS_VERSION="`uname -r | ${SED} 's!\.! !g' | ${SED} 's!-! !g'`"
 562   OS_VERSION_MAJOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 1 -d ' '`"
 563   OS_VERSION_MINOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 2 -d ' '`"
 564   OS_VERSION_MICRO="`${ECHO} ${OS_VERSION} | ${CUT} -f 3 -d ' '`"
 565   AC_SUBST(OS_VERSION_MAJOR)
 566   AC_SUBST(OS_VERSION_MINOR)
 567   AC_SUBST(OS_VERSION_MICRO)
 568 ])
 569 
 570 # Support macro for PLATFORM_SETUP_OPENJDK_TARGET_BITS.
 571 # Add -mX to various FLAGS variables.
 572 AC_DEFUN([PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS],
 573 [
 574   # When we add flags to the "official" CFLAGS etc, we need to
 575   # keep track of these additions in ADDED_CFLAGS etc. These
 576   # will later be checked to make sure only controlled additions
 577   # have been made to CFLAGS etc.
 578   ADDED_CFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
 579   ADDED_CXXFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
 580   ADDED_LDFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
 581 
 582   CFLAGS="${CFLAGS}${ADDED_CFLAGS}"
 583   CXXFLAGS="${CXXFLAGS}${ADDED_CXXFLAGS}"
 584   LDFLAGS="${LDFLAGS}${ADDED_LDFLAGS}"
 585 
 586   CFLAGS_JDK="${CFLAGS_JDK}${ADDED_CFLAGS}"
 587   CXXFLAGS_JDK="${CXXFLAGS_JDK}${ADDED_CXXFLAGS}"
 588   LDFLAGS_JDK="${LDFLAGS_JDK}${ADDED_LDFLAGS}"
 589 
 590   JVM_CFLAGS="$JVM_CFLAGS $ADDED_CFLAGS"
 591   JVM_LDFLAGS="$JVM_LDFLAGS $ADDED_LDFLAGS"
 592   JVM_ASFLAGS="$JVM_ASFLAGS $ADDED_CFLAGS"
 593 ])
 594 
 595 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_BITS],
 596 [
 597   ###############################################################################
 598   #
 599   # Now we check if libjvm.so will use 32 or 64 bit pointers for the C/C++ code.
 600   # (The JVM can use 32 or 64 bit Java pointers but that decision
 601   # is made at runtime.)
 602   #
 603 
 604   if test "x$OPENJDK_TARGET_OS" = xsolaris || test "x$OPENJDK_TARGET_OS" = xaix; then
 605     # Always specify -m flag on Solaris
 606     # And -q on AIX because otherwise the compiler produces 32-bit objects by default
 607     PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS
 608   elif test "x$COMPILE_TYPE" = xreduced; then
 609     if test "x$OPENJDK_TARGET_OS_TYPE" = xunix; then
 610       # Specify -m if running reduced on unix platforms
 611       PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS
 612     fi
 613   fi
 614   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
 615     JVM_CFLAGS="$JVM_CFLAGS ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
 616     JVM_LDFLAGS="$JVM_LDFLAGS ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
 617     JVM_ASFLAGS="$JVM_ASFLAGS ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
 618   fi
 619 
 620   # Make compilation sanity check
 621   AC_CHECK_HEADERS([stdio.h], , [
 622     AC_MSG_NOTICE([Failed to compile stdio.h. This likely implies missing compile dependencies.])
 623     if test "x$COMPILE_TYPE" = xreduced; then
 624       HELP_MSG_MISSING_DEPENDENCY([reduced])
 625       AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed. $HELP_MSG])
 626     elif test "x$COMPILE_TYPE" = xcross; then
 627       AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.])
 628     fi
 629     AC_MSG_ERROR([Cannot continue.])
 630   ])
 631 
 632   AC_CHECK_SIZEOF([int *], [1111])
 633 
 634   # AC_CHECK_SIZEOF defines 'ac_cv_sizeof_int_p' to hold the number of bytes used by an 'int*'
 635   if test "x$ac_cv_sizeof_int_p" = x; then
 636     # The test failed, lets stick to the assumed value.
 637     AC_MSG_WARN([The number of bits in the target could not be determined, using $OPENJDK_TARGET_CPU_BITS.])
 638   else
 639     TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p`
 640 
 641     if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then
 642       # This situation may happen on 64-bit platforms where the compiler by default only generates 32-bit objects
 643       # Let's try to implicitely set the compilers target architecture and retry the test
 644       AC_MSG_NOTICE([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS).])
 645       AC_MSG_NOTICE([Retrying with platforms compiler target bits flag to ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}])
 646       PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS
 647 
 648       # We have to unset 'ac_cv_sizeof_int_p' first, otherwise AC_CHECK_SIZEOF will use the previously cached value!
 649       unset ac_cv_sizeof_int_p
 650       # And we have to undef the definition of SIZEOF_INT_P in confdefs.h by the previous invocation of AC_CHECK_SIZEOF
 651       cat >>confdefs.h <<_ACEOF
 652 #undef SIZEOF_INT_P
 653 _ACEOF
 654 
 655       AC_CHECK_SIZEOF([int *], [1111])
 656 
 657       TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p`
 658 
 659       if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then
 660         AC_MSG_NOTICE([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS)])
 661         if test "x$COMPILE_TYPE" = xreduced; then
 662           HELP_MSG_MISSING_DEPENDENCY([reduced])
 663           AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed. $HELP_MSG])
 664         elif test "x$COMPILE_TYPE" = xcross; then
 665           AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.])
 666         fi
 667         AC_MSG_ERROR([Cannot continue.])
 668       fi
 669     fi
 670   fi
 671 
 672   AC_MSG_CHECKING([for target address size])
 673   AC_MSG_RESULT([$OPENJDK_TARGET_CPU_BITS bits])
 674 ])
 675 
 676 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_ENDIANNESS],
 677 [
 678   ###############################################################################
 679   #
 680   # Is the target little of big endian?
 681   #
 682   AC_C_BIGENDIAN([ENDIAN="big"],[ENDIAN="little"],[ENDIAN="unknown"],[ENDIAN="universal_endianness"])
 683 
 684   if test "x$ENDIAN" = xuniversal_endianness; then
 685     AC_MSG_ERROR([Building with both big and little endianness is not supported])
 686   fi
 687   if test "x$ENDIAN" != "x$OPENJDK_TARGET_CPU_ENDIAN"; then
 688     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)])
 689   fi
 690 ])