1 #
   2 # Copyright (c) 2011, 2020, 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     riscv64)
 124       VAR_CPU=riscv64
 125       VAR_CPU_ARCH=riscv
 126       VAR_CPU_BITS=64
 127       VAR_CPU_ENDIAN=little
 128       ;;
 129     s390)
 130       VAR_CPU=s390
 131       VAR_CPU_ARCH=s390
 132       VAR_CPU_BITS=32
 133       VAR_CPU_ENDIAN=big
 134       ;;
 135     s390x)
 136       VAR_CPU=s390x
 137       VAR_CPU_ARCH=s390
 138       VAR_CPU_BITS=64
 139       VAR_CPU_ENDIAN=big
 140       ;;
 141     sh*eb)
 142       VAR_CPU=sh
 143       VAR_CPU_ARCH=sh
 144       VAR_CPU_BITS=32
 145       VAR_CPU_ENDIAN=big
 146       ;;
 147     sh*)
 148       VAR_CPU=sh
 149       VAR_CPU_ARCH=sh
 150       VAR_CPU_BITS=32
 151       VAR_CPU_ENDIAN=little
 152       ;;
 153     sparc)
 154       VAR_CPU=sparc
 155       VAR_CPU_ARCH=sparc
 156       VAR_CPU_BITS=32
 157       VAR_CPU_ENDIAN=big
 158       ;;
 159     sparcv9|sparc64)
 160       VAR_CPU=sparcv9
 161       VAR_CPU_ARCH=sparc
 162       VAR_CPU_BITS=64
 163       VAR_CPU_ENDIAN=big
 164       ;;
 165     *)
 166       AC_MSG_ERROR([unsupported cpu $1])
 167       ;;
 168   esac
 169 ])
 170 
 171 # Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
 172 # Converts autoconf style OS name to OpenJDK style, into
 173 # VAR_OS, VAR_OS_TYPE and VAR_OS_ENV.
 174 AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_OS],
 175 [
 176   case "$1" in
 177     *linux*)
 178       VAR_OS=linux
 179       VAR_OS_TYPE=unix
 180       ;;
 181     *solaris*)
 182       VAR_OS=solaris
 183       VAR_OS_TYPE=unix
 184       ;;
 185     *darwin*)
 186       VAR_OS=macosx
 187       VAR_OS_TYPE=unix
 188       ;;
 189     *bsd*)
 190       VAR_OS=bsd
 191       VAR_OS_TYPE=unix
 192       ;;
 193     *cygwin*)
 194       VAR_OS=windows
 195       VAR_OS_ENV=windows.cygwin
 196       ;;
 197     *wsl*)
 198       VAR_OS=windows
 199       VAR_OS_ENV=windows.wsl
 200       ;;
 201     *mingw*)
 202       VAR_OS=windows
 203       VAR_OS_ENV=windows.msys
 204       ;;
 205     *aix*)
 206       VAR_OS=aix
 207       VAR_OS_TYPE=unix
 208       ;;
 209     *)
 210       AC_MSG_ERROR([unsupported operating system $1])
 211       ;;
 212   esac
 213 ])
 214 
 215 # Expects $host_os $host_cpu $build_os and $build_cpu
 216 # and $with_target_bits to have been setup!
 217 #
 218 # Translate the standard triplet(quadruplet) definition
 219 # of the target/build system into OPENJDK_TARGET_OS, OPENJDK_TARGET_CPU,
 220 # OPENJDK_BUILD_OS, etc.
 221 AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
 222 [
 223   # Copy the autoconf trip/quadruplet verbatim to OPENJDK_TARGET_AUTOCONF_NAME
 224   # (from the autoconf "host") and OPENJDK_BUILD_AUTOCONF_NAME
 225   # Note that we might later on rewrite e.g. OPENJDK_TARGET_CPU due to reduced build,
 226   # but this will not change the value of OPENJDK_TARGET_AUTOCONF_NAME.
 227   OPENJDK_TARGET_AUTOCONF_NAME="$host"
 228   OPENJDK_BUILD_AUTOCONF_NAME="$build"
 229   AC_SUBST(OPENJDK_TARGET_AUTOCONF_NAME)
 230   AC_SUBST(OPENJDK_BUILD_AUTOCONF_NAME)
 231 
 232   # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
 233   PLATFORM_EXTRACT_VARS_FROM_OS($build_os)
 234   PLATFORM_EXTRACT_VARS_FROM_CPU($build_cpu)
 235   # ..and setup our own variables. (Do this explicitly to facilitate searching)
 236   OPENJDK_BUILD_OS="$VAR_OS"
 237   if test "x$VAR_OS_TYPE" != x; then
 238     OPENJDK_BUILD_OS_TYPE="$VAR_OS_TYPE"
 239   else
 240     OPENJDK_BUILD_OS_TYPE="$VAR_OS"
 241   fi
 242   if test "x$VAR_OS_ENV" != x; then
 243     OPENJDK_BUILD_OS_ENV="$VAR_OS_ENV"
 244   else
 245     OPENJDK_BUILD_OS_ENV="$VAR_OS"
 246   fi
 247   OPENJDK_BUILD_CPU="$VAR_CPU"
 248   OPENJDK_BUILD_CPU_ARCH="$VAR_CPU_ARCH"
 249   OPENJDK_BUILD_CPU_BITS="$VAR_CPU_BITS"
 250   OPENJDK_BUILD_CPU_ENDIAN="$VAR_CPU_ENDIAN"
 251   AC_SUBST(OPENJDK_BUILD_OS)
 252   AC_SUBST(OPENJDK_BUILD_OS_TYPE)
 253   AC_SUBST(OPENJDK_BUILD_OS_ENV)
 254   AC_SUBST(OPENJDK_BUILD_CPU)
 255   AC_SUBST(OPENJDK_BUILD_CPU_ARCH)
 256   AC_SUBST(OPENJDK_BUILD_CPU_BITS)
 257   AC_SUBST(OPENJDK_BUILD_CPU_ENDIAN)
 258 
 259   AC_MSG_CHECKING([openjdk-build os-cpu])
 260   AC_MSG_RESULT([$OPENJDK_BUILD_OS-$OPENJDK_BUILD_CPU])
 261 
 262   # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
 263   PLATFORM_EXTRACT_VARS_FROM_OS($host_os)
 264   PLATFORM_EXTRACT_VARS_FROM_CPU($host_cpu)
 265   # ... and setup our own variables. (Do this explicitly to facilitate searching)
 266   OPENJDK_TARGET_OS="$VAR_OS"
 267   if test "x$VAR_OS_TYPE" != x; then
 268     OPENJDK_TARGET_OS_TYPE="$VAR_OS_TYPE"
 269   else
 270     OPENJDK_TARGET_OS_TYPE="$VAR_OS"
 271   fi
 272   if test "x$VAR_OS_ENV" != x; then
 273     OPENJDK_TARGET_OS_ENV="$VAR_OS_ENV"
 274   else
 275     OPENJDK_TARGET_OS_ENV="$VAR_OS"
 276   fi
 277   OPENJDK_TARGET_CPU="$VAR_CPU"
 278   OPENJDK_TARGET_CPU_ARCH="$VAR_CPU_ARCH"
 279   OPENJDK_TARGET_CPU_BITS="$VAR_CPU_BITS"
 280   OPENJDK_TARGET_CPU_ENDIAN="$VAR_CPU_ENDIAN"
 281   OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
 282 
 283   AC_SUBST(OPENJDK_TARGET_OS)
 284   AC_SUBST(OPENJDK_TARGET_OS_TYPE)
 285   AC_SUBST(OPENJDK_TARGET_OS_ENV)
 286   AC_SUBST(OPENJDK_TARGET_OS_UPPERCASE)
 287   AC_SUBST(OPENJDK_TARGET_CPU)
 288   AC_SUBST(OPENJDK_TARGET_CPU_ARCH)
 289   AC_SUBST(OPENJDK_TARGET_CPU_BITS)
 290   AC_SUBST(OPENJDK_TARGET_CPU_ENDIAN)
 291 
 292   AC_MSG_CHECKING([openjdk-target os-cpu])
 293   AC_MSG_RESULT([$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
 294 ])
 295 
 296 # Check if a reduced build (32-bit on 64-bit platforms) is requested, and modify behaviour
 297 # accordingly. Must be done after setting up build and target system, but before
 298 # doing anything else with these values.
 299 AC_DEFUN([PLATFORM_SETUP_TARGET_CPU_BITS],
 300 [
 301   AC_ARG_WITH(target-bits, [AS_HELP_STRING([--with-target-bits],
 302        [build 32-bit or 64-bit binaries (for platforms that support it), e.g. --with-target-bits=32 @<:@guessed@:>@])])
 303 
 304   # We have three types of compiles:
 305   # native  == normal compilation, target system == build system
 306   # cross   == traditional cross compilation, target system != build system; special toolchain needed
 307   # reduced == using native compilers, but with special flags (e.g. -m32) to produce 32-bit builds on 64-bit machines
 308   #
 309   if test "x$OPENJDK_BUILD_AUTOCONF_NAME" != "x$OPENJDK_TARGET_AUTOCONF_NAME"; then
 310     # We're doing a proper cross-compilation
 311     COMPILE_TYPE="cross"
 312   else
 313     COMPILE_TYPE="native"
 314   fi
 315 
 316   if test "x$with_target_bits" != x; then
 317     if test "x$COMPILE_TYPE" = "xcross"; then
 318       AC_MSG_ERROR([It is not possible to combine --with-target-bits=X and proper cross-compilation. Choose either.])
 319     fi
 320 
 321     if test "x$with_target_bits" = x32 && test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
 322       # A reduced build is requested
 323       COMPILE_TYPE="reduced"
 324       OPENJDK_TARGET_CPU_BITS=32
 325       if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
 326         OPENJDK_TARGET_CPU=x86
 327       elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
 328         OPENJDK_TARGET_CPU=sparc
 329       else
 330         AC_MSG_ERROR([Reduced build (--with-target-bits=32) is only supported on x86_64 and sparcv9])
 331       fi
 332     elif test "x$with_target_bits" = x64 && test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
 333       AC_MSG_ERROR([It is not possible to use --with-target-bits=64 on a 32 bit system. Use proper cross-compilation instead.])
 334     elif test "x$with_target_bits" = "x$OPENJDK_TARGET_CPU_BITS"; then
 335       AC_MSG_NOTICE([--with-target-bits are set to build platform address size; argument has no meaning])
 336     else
 337       AC_MSG_ERROR([--with-target-bits can only be 32 or 64, you specified $with_target_bits!])
 338     fi
 339   fi
 340   AC_SUBST(COMPILE_TYPE)
 341 
 342   AC_MSG_CHECKING([compilation type])
 343   AC_MSG_RESULT([$COMPILE_TYPE])
 344 ])
 345 
 346 # Setup the legacy variables, for controlling the old makefiles.
 347 #
 348 AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS],
 349 [
 350   PLATFORM_SETUP_LEGACY_VARS_HELPER([TARGET])
 351   PLATFORM_SETUP_LEGACY_VARS_HELPER([BUILD])
 352 ])
 353 
 354 # $1 - Either TARGET or BUILD to setup the variables for.
 355 AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS_HELPER],
 356 [
 357   # Also store the legacy naming of the cpu.
 358   # Ie i586 and amd64 instead of x86 and x86_64
 359   OPENJDK_$1_CPU_LEGACY="$OPENJDK_$1_CPU"
 360   if test "x$OPENJDK_$1_CPU" = xx86; then
 361     OPENJDK_$1_CPU_LEGACY="i586"
 362   elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
 363     # On all platforms except MacOSX replace x86_64 with amd64.
 364     OPENJDK_$1_CPU_LEGACY="amd64"
 365   elif test "x$OPENJDK_$1_CPU" = xalpha; then
 366     # Avoid name collisions with variables named alpha
 367     OPENJDK_$1_CPU_LEGACY="_alpha_"
 368   elif test "x$OPENJDK_$1_CPU" = xsh; then
 369     # Avoid name collisions with variables named sh
 370     OPENJDK_$1_CPU_LEGACY="_sh_"
 371   fi
 372   AC_SUBST(OPENJDK_$1_CPU_LEGACY)
 373 
 374   # And the second legacy naming of the cpu.
 375   # Ie i386 and amd64 instead of x86 and x86_64.
 376   OPENJDK_$1_CPU_LEGACY_LIB="$OPENJDK_$1_CPU"
 377   if test "x$OPENJDK_$1_CPU" = xx86; then
 378     OPENJDK_$1_CPU_LEGACY_LIB="i386"
 379   elif test "x$OPENJDK_$1_CPU" = xx86_64; then
 380     OPENJDK_$1_CPU_LEGACY_LIB="amd64"
 381   fi
 382   AC_SUBST(OPENJDK_$1_CPU_LEGACY_LIB)
 383 
 384   # OPENJDK_$1_CPU_ISADIR is normally empty. On 64-bit Solaris systems, it is set to
 385   # /amd64 or /sparcv9. This string is appended to some library paths, like this:
 386   # /usr/lib${OPENJDK_$1_CPU_ISADIR}/libexample.so
 387   OPENJDK_$1_CPU_ISADIR=""
 388   if test "x$OPENJDK_$1_OS" = xsolaris; then
 389     if test "x$OPENJDK_$1_CPU" = xx86_64; then
 390       OPENJDK_$1_CPU_ISADIR="/amd64"
 391     elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
 392       OPENJDK_$1_CPU_ISADIR="/sparcv9"
 393     fi
 394   fi
 395   AC_SUBST(OPENJDK_$1_CPU_ISADIR)
 396 
 397   # Setup OPENJDK_$1_CPU_OSARCH, which is used to set the os.arch Java system property
 398   OPENJDK_$1_CPU_OSARCH="$OPENJDK_$1_CPU"
 399   if test "x$OPENJDK_$1_OS" = xlinux && test "x$OPENJDK_$1_CPU" = xx86; then
 400     # On linux only, we replace x86 with i386.
 401     OPENJDK_$1_CPU_OSARCH="i386"
 402   elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
 403     # On all platforms except macosx, we replace x86_64 with amd64.
 404     OPENJDK_$1_CPU_OSARCH="amd64"
 405   fi
 406   AC_SUBST(OPENJDK_$1_CPU_OSARCH)
 407 
 408   OPENJDK_$1_CPU_JLI="$OPENJDK_$1_CPU"
 409   if test "x$OPENJDK_$1_CPU" = xx86; then
 410     OPENJDK_$1_CPU_JLI="i386"
 411   elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
 412     # On all platforms except macosx, we replace x86_64 with amd64.
 413     OPENJDK_$1_CPU_JLI="amd64"
 414   fi
 415 
 416   # The new version string in JDK 9 also defined new naming of OS and ARCH for bundles
 417   # Macosx is osx and x86_64 is x64
 418   if test "x$OPENJDK_$1_OS" = xmacosx; then
 419     OPENJDK_$1_OS_BUNDLE="osx"
 420   else
 421     OPENJDK_$1_OS_BUNDLE="$OPENJDK_TARGET_OS"
 422   fi
 423   if test "x$OPENJDK_$1_CPU" = xx86_64; then
 424     OPENJDK_$1_CPU_BUNDLE="x64"
 425   else
 426     OPENJDK_$1_CPU_BUNDLE="$OPENJDK_$1_CPU"
 427   fi
 428   OPENJDK_$1_BUNDLE_PLATFORM="${OPENJDK_$1_OS_BUNDLE}-${OPENJDK_$1_CPU_BUNDLE}"
 429   AC_SUBST(OPENJDK_$1_BUNDLE_PLATFORM)
 430 
 431   if test "x$COMPILE_TYPE" = "xcross"; then
 432     # FIXME: ... or should this include reduced builds..?
 433     DEFINE_CROSS_COMPILE_ARCH="CROSS_COMPILE_ARCH:=$OPENJDK_$1_CPU_LEGACY"
 434   else
 435     DEFINE_CROSS_COMPILE_ARCH=""
 436   fi
 437   AC_SUBST(DEFINE_CROSS_COMPILE_ARCH)
 438 
 439   # Convert openjdk platform names to hotspot names
 440 
 441   HOTSPOT_$1_OS=${OPENJDK_$1_OS}
 442   if test "x$OPENJDK_$1_OS" = xmacosx; then
 443     HOTSPOT_$1_OS=bsd
 444   fi
 445   AC_SUBST(HOTSPOT_$1_OS)
 446 
 447   HOTSPOT_$1_OS_TYPE=${OPENJDK_$1_OS_TYPE}
 448   if test "x$OPENJDK_$1_OS_TYPE" = xunix; then
 449     HOTSPOT_$1_OS_TYPE=posix
 450   fi
 451   AC_SUBST(HOTSPOT_$1_OS_TYPE)
 452 
 453   HOTSPOT_$1_CPU=${OPENJDK_$1_CPU}
 454   if test "x$OPENJDK_$1_CPU" = xx86; then
 455     HOTSPOT_$1_CPU=x86_32
 456   elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
 457     HOTSPOT_$1_CPU=sparc
 458   elif test "x$OPENJDK_$1_CPU" = xppc64; then
 459     HOTSPOT_$1_CPU=ppc_64
 460   elif test "x$OPENJDK_$1_CPU" = xppc64le; then
 461     HOTSPOT_$1_CPU=ppc_64
 462   fi
 463   AC_SUBST(HOTSPOT_$1_CPU)
 464 
 465   # This is identical with OPENJDK_*, but define anyway for consistency.
 466   HOTSPOT_$1_CPU_ARCH=${OPENJDK_$1_CPU_ARCH}
 467   AC_SUBST(HOTSPOT_$1_CPU_ARCH)
 468 
 469   # Setup HOTSPOT_$1_CPU_DEFINE
 470   if test "x$OPENJDK_$1_CPU" = xx86; then
 471     HOTSPOT_$1_CPU_DEFINE=IA32
 472   elif test "x$OPENJDK_$1_CPU" = xx86_64; then
 473     HOTSPOT_$1_CPU_DEFINE=AMD64
 474   elif test "x$OPENJDK_$1_CPU" = xx32; then
 475     HOTSPOT_$1_CPU_DEFINE=X32
 476   elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
 477     HOTSPOT_$1_CPU_DEFINE=SPARC
 478   elif test "x$OPENJDK_$1_CPU" = xaarch64; then
 479     HOTSPOT_$1_CPU_DEFINE=AARCH64
 480   elif test "x$OPENJDK_$1_CPU" = xppc64; then
 481     HOTSPOT_$1_CPU_DEFINE=PPC64
 482   elif test "x$OPENJDK_$1_CPU" = xppc64le; then
 483     HOTSPOT_$1_CPU_DEFINE=PPC64
 484 
 485   # The cpu defines below are for zero, we don't support them directly.
 486   elif test "x$OPENJDK_$1_CPU" = xsparc; then
 487     HOTSPOT_$1_CPU_DEFINE=SPARC
 488   elif test "x$OPENJDK_$1_CPU" = xppc; then
 489     HOTSPOT_$1_CPU_DEFINE=PPC32
 490   elif test "x$OPENJDK_$1_CPU" = xs390; then
 491     HOTSPOT_$1_CPU_DEFINE=S390
 492   elif test "x$OPENJDK_$1_CPU" = xs390x; then
 493     HOTSPOT_$1_CPU_DEFINE=S390
 494   elif test "x$OPENJDK_$1_CPU" = xriscv64; then
 495     HOTSPOT_$1_CPU_DEFINE=RISCV
 496   elif test "x$OPENJDK_$1_CPU" != x; then
 497     HOTSPOT_$1_CPU_DEFINE=$(echo $OPENJDK_$1_CPU | tr a-z A-Z)
 498   fi
 499   AC_SUBST(HOTSPOT_$1_CPU_DEFINE)
 500 
 501   # For historical reasons, the OS include directories have odd names.
 502   OPENJDK_$1_OS_INCLUDE_SUBDIR="$OPENJDK_TARGET_OS"
 503   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
 504     OPENJDK_$1_OS_INCLUDE_SUBDIR="win32"
 505   elif test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
 506     OPENJDK_$1_OS_INCLUDE_SUBDIR="darwin"
 507   fi
 508   AC_SUBST(OPENJDK_$1_OS_INCLUDE_SUBDIR)
 509 ])
 510 
 511 AC_DEFUN([PLATFORM_SET_RELEASE_FILE_OS_VALUES],
 512 [
 513   if test "x$OPENJDK_TARGET_OS" = "xsolaris"; then
 514     RELEASE_FILE_OS_NAME=SunOS
 515   fi
 516   if test "x$OPENJDK_TARGET_OS" = "xlinux"; then
 517     RELEASE_FILE_OS_NAME=Linux
 518   fi
 519   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
 520     RELEASE_FILE_OS_NAME=Windows
 521   fi
 522   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
 523     RELEASE_FILE_OS_NAME="Darwin"
 524   fi
 525   if test "x$OPENJDK_TARGET_OS" = "xaix"; then
 526     RELEASE_FILE_OS_NAME="AIX"
 527   fi
 528   RELEASE_FILE_OS_ARCH=${OPENJDK_TARGET_CPU}
 529 
 530   AC_SUBST(RELEASE_FILE_OS_NAME)
 531   AC_SUBST(RELEASE_FILE_OS_ARCH)
 532 ])
 533 
 534 AC_DEFUN([PLATFORM_SET_MODULE_TARGET_OS_VALUES],
 535 [
 536   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
 537     OPENJDK_MODULE_TARGET_OS_NAME="macos"
 538   else
 539     OPENJDK_MODULE_TARGET_OS_NAME="$OPENJDK_TARGET_OS"
 540   fi
 541 
 542   if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
 543     OPENJDK_MODULE_TARGET_OS_ARCH="amd64"
 544   else
 545     OPENJDK_MODULE_TARGET_OS_ARCH="$OPENJDK_TARGET_CPU"
 546   fi
 547 
 548   OPENJDK_MODULE_TARGET_PLATFORM="${OPENJDK_MODULE_TARGET_OS_NAME}-${OPENJDK_MODULE_TARGET_OS_ARCH}"
 549   AC_SUBST(OPENJDK_MODULE_TARGET_PLATFORM)
 550 ])
 551 
 552 #%%% Build and target systems %%%
 553 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_AND_TARGET],
 554 [
 555   # Figure out the build and target systems. # Note that in autoconf terminology, "build" is obvious, but "target"
 556   # is confusing; it assumes you are cross-compiling a cross-compiler (!)  and "target" is thus the target of the
 557   # product you're building. The target of this build is called "host". Since this is confusing to most people, we
 558   # have not adopted that system, but use "target" as the platform we are building for. In some places though we need
 559   # to use the configure naming style.
 560   AC_CANONICAL_BUILD
 561   AC_CANONICAL_HOST
 562   AC_CANONICAL_TARGET
 563 
 564   PLATFORM_EXTRACT_TARGET_AND_BUILD
 565   PLATFORM_SETUP_TARGET_CPU_BITS
 566   PLATFORM_SET_MODULE_TARGET_OS_VALUES
 567   PLATFORM_SET_RELEASE_FILE_OS_VALUES
 568   PLATFORM_SETUP_LEGACY_VARS
 569   PLATFORM_CHECK_DEPRECATION
 570 ])
 571 
 572 AC_DEFUN([PLATFORM_CHECK_DEPRECATION],
 573 [
 574   UTIL_ARG_ENABLE(NAME: deprecated-ports, DEFAULT: false,
 575       RESULT: ENABLE_DEPRECATED_PORTS,
 576       DESC: [suppress the error when configuring for a deprecated port])
 577 
 578   if test "x$OPENJDK_TARGET_OS" = xsolaris || \
 579       (test "x$OPENJDK_TARGET_CPU_ARCH" = xsparc && \
 580       test "x$with_jvm_variants" != xzero); then
 581     if test "x$ENABLE_DEPRECATED_PORTS" = "xtrue"; then
 582       AC_MSG_WARN([The Solaris and SPARC ports are deprecated and may be removed in a future release.])
 583     else
 584       AC_MSG_ERROR(m4_normalize([The Solaris and SPARC ports are deprecated and may be removed in a
 585         future release. Use --enable-deprecated-ports=yes to suppress this error.]))
 586     fi
 587   fi
 588 ])
 589 
 590 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_OS_VERSION],
 591 [
 592   ###############################################################################
 593 
 594   # Note that this is the build platform OS version!
 595 
 596   OS_VERSION="`uname -r | ${SED} 's!\.! !g' | ${SED} 's!-! !g'`"
 597   OS_VERSION_MAJOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 1 -d ' '`"
 598   OS_VERSION_MINOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 2 -d ' '`"
 599   OS_VERSION_MICRO="`${ECHO} ${OS_VERSION} | ${CUT} -f 3 -d ' '`"
 600   AC_SUBST(OS_VERSION_MAJOR)
 601   AC_SUBST(OS_VERSION_MINOR)
 602   AC_SUBST(OS_VERSION_MICRO)
 603 ])
 604 
 605 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_BITS],
 606 [
 607   ###############################################################################
 608   #
 609   # Now we check if libjvm.so will use 32 or 64 bit pointers for the C/C++ code.
 610   # (The JVM can use 32 or 64 bit Java pointers but that decision
 611   # is made at runtime.)
 612   #
 613 
 614   # Make compilation sanity check
 615   AC_CHECK_HEADERS([stdio.h], , [
 616     AC_MSG_NOTICE([Failed to compile stdio.h. This likely implies missing compile dependencies.])
 617     if test "x$COMPILE_TYPE" = xreduced; then
 618       HELP_MSG_MISSING_DEPENDENCY([reduced])
 619       AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed. $HELP_MSG])
 620     elif test "x$COMPILE_TYPE" = xcross; then
 621       AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.])
 622     fi
 623     AC_MSG_ERROR([Cannot continue.])
 624   ])
 625 
 626   AC_CHECK_SIZEOF([int *], [1111])
 627 
 628   # AC_CHECK_SIZEOF defines 'ac_cv_sizeof_int_p' to hold the number of bytes used by an 'int*'
 629   if test "x$ac_cv_sizeof_int_p" = x; then
 630     # The test failed, lets stick to the assumed value.
 631     AC_MSG_WARN([The number of bits in the target could not be determined, using $OPENJDK_TARGET_CPU_BITS.])
 632   else
 633     TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p`
 634 
 635     if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then
 636       AC_MSG_NOTICE([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS)])
 637       if test "x$COMPILE_TYPE" = xreduced; then
 638         HELP_MSG_MISSING_DEPENDENCY([reduced])
 639         AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed. $HELP_MSG])
 640       elif test "x$COMPILE_TYPE" = xcross; then
 641         AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.])
 642       fi
 643       AC_MSG_ERROR([Cannot continue.])
 644     fi
 645   fi
 646 
 647   AC_MSG_CHECKING([for target address size])
 648   AC_MSG_RESULT([$OPENJDK_TARGET_CPU_BITS bits])
 649 ])
 650 
 651 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_ENDIANNESS],
 652 [
 653   ###############################################################################
 654   #
 655   # Is the target little of big endian?
 656   #
 657   AC_C_BIGENDIAN([ENDIAN="big"],[ENDIAN="little"],[ENDIAN="unknown"],[ENDIAN="universal_endianness"])
 658 
 659   if test "x$ENDIAN" = xuniversal_endianness; then
 660     AC_MSG_ERROR([Building with both big and little endianness is not supported])
 661   fi
 662   if test "x$ENDIAN" != "x$OPENJDK_TARGET_CPU_ENDIAN"; then
 663     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)])
 664   fi
 665 ])