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     sparc)
 166       VAR_CPU=sparc
 167       VAR_CPU_ARCH=sparc
 168       VAR_CPU_BITS=32
 169       VAR_CPU_ENDIAN=big
 170       ;;
 171     sparcv9|sparc64)
 172       VAR_CPU=sparcv9
 173       VAR_CPU_ARCH=sparc
 174       VAR_CPU_BITS=64
 175       VAR_CPU_ENDIAN=big
 176       ;;
 177     *)
 178       AC_MSG_ERROR([unsupported cpu $1])
 179       ;;
 180   esac
 181 ])
 182 
 183 # Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
 184 # Converts autoconf style OS name to OpenJDK style, into
 185 # VAR_OS, VAR_OS_TYPE and VAR_OS_ENV.
 186 AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_OS],
 187 [
 188   case "$1" in
 189     *linux*)
 190       VAR_OS=linux
 191       VAR_OS_TYPE=unix
 192       ;;
 193     *darwin*)
 194       VAR_OS=macosx
 195       VAR_OS_TYPE=unix
 196       ;;
 197     *bsd*)
 198       VAR_OS=bsd
 199       VAR_OS_TYPE=unix
 200       ;;
 201     *cygwin*)
 202       VAR_OS=windows
 203       VAR_OS_ENV=windows.cygwin
 204       ;;
 205     *wsl*)
 206       VAR_OS=windows
 207       VAR_OS_ENV=windows.wsl
 208       ;;
 209     *mingw*)
 210       VAR_OS=windows
 211       VAR_OS_ENV=windows.msys
 212       ;;
 213     *aix*)
 214       VAR_OS=aix
 215       VAR_OS_TYPE=unix
 216       ;;
 217     *)
 218       AC_MSG_ERROR([unsupported operating system $1])
 219       ;;
 220   esac
 221 ])
 222 
 223 # Expects $host_os $host_cpu $build_os and $build_cpu
 224 # and $with_target_bits to have been setup!
 225 #
 226 # Translate the standard triplet(quadruplet) definition
 227 # of the target/build system into OPENJDK_TARGET_OS, OPENJDK_TARGET_CPU,
 228 # OPENJDK_BUILD_OS, etc.
 229 AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
 230 [
 231   # Copy the autoconf trip/quadruplet verbatim to OPENJDK_TARGET_AUTOCONF_NAME
 232   # (from the autoconf "host") and OPENJDK_BUILD_AUTOCONF_NAME
 233   # Note that we might later on rewrite e.g. OPENJDK_TARGET_CPU due to reduced build,
 234   # but this will not change the value of OPENJDK_TARGET_AUTOCONF_NAME.
 235   OPENJDK_TARGET_AUTOCONF_NAME="$host"
 236   OPENJDK_BUILD_AUTOCONF_NAME="$build"
 237   AC_SUBST(OPENJDK_TARGET_AUTOCONF_NAME)
 238   AC_SUBST(OPENJDK_BUILD_AUTOCONF_NAME)
 239 
 240   # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
 241   PLATFORM_EXTRACT_VARS_FROM_OS($build_os)
 242   PLATFORM_EXTRACT_VARS_FROM_CPU($build_cpu)
 243   # ..and setup our own variables. (Do this explicitly to facilitate searching)
 244   OPENJDK_BUILD_OS="$VAR_OS"
 245   if test "x$VAR_OS_TYPE" != x; then
 246     OPENJDK_BUILD_OS_TYPE="$VAR_OS_TYPE"
 247   else
 248     OPENJDK_BUILD_OS_TYPE="$VAR_OS"
 249   fi
 250   if test "x$VAR_OS_ENV" != x; then
 251     OPENJDK_BUILD_OS_ENV="$VAR_OS_ENV"
 252   else
 253     OPENJDK_BUILD_OS_ENV="$VAR_OS"
 254   fi
 255   OPENJDK_BUILD_CPU="$VAR_CPU"
 256   OPENJDK_BUILD_CPU_ARCH="$VAR_CPU_ARCH"
 257   OPENJDK_BUILD_CPU_BITS="$VAR_CPU_BITS"
 258   OPENJDK_BUILD_CPU_ENDIAN="$VAR_CPU_ENDIAN"
 259   AC_SUBST(OPENJDK_BUILD_OS)
 260   AC_SUBST(OPENJDK_BUILD_OS_TYPE)
 261   AC_SUBST(OPENJDK_BUILD_OS_ENV)
 262   AC_SUBST(OPENJDK_BUILD_CPU)
 263   AC_SUBST(OPENJDK_BUILD_CPU_ARCH)
 264   AC_SUBST(OPENJDK_BUILD_CPU_BITS)
 265   AC_SUBST(OPENJDK_BUILD_CPU_ENDIAN)
 266 
 267   AC_MSG_CHECKING([openjdk-build os-cpu])
 268   AC_MSG_RESULT([$OPENJDK_BUILD_OS-$OPENJDK_BUILD_CPU])
 269 
 270   # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
 271   PLATFORM_EXTRACT_VARS_FROM_OS($host_os)
 272   PLATFORM_EXTRACT_VARS_FROM_CPU($host_cpu)
 273   # ... and setup our own variables. (Do this explicitly to facilitate searching)
 274   OPENJDK_TARGET_OS="$VAR_OS"
 275   if test "x$VAR_OS_TYPE" != x; then
 276     OPENJDK_TARGET_OS_TYPE="$VAR_OS_TYPE"
 277   else
 278     OPENJDK_TARGET_OS_TYPE="$VAR_OS"
 279   fi
 280   if test "x$VAR_OS_ENV" != x; then
 281     OPENJDK_TARGET_OS_ENV="$VAR_OS_ENV"
 282   else
 283     OPENJDK_TARGET_OS_ENV="$VAR_OS"
 284   fi
 285   OPENJDK_TARGET_CPU="$VAR_CPU"
 286   OPENJDK_TARGET_CPU_ARCH="$VAR_CPU_ARCH"
 287   OPENJDK_TARGET_CPU_BITS="$VAR_CPU_BITS"
 288   OPENJDK_TARGET_CPU_ENDIAN="$VAR_CPU_ENDIAN"
 289   OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
 290 
 291   AC_SUBST(OPENJDK_TARGET_OS)
 292   AC_SUBST(OPENJDK_TARGET_OS_TYPE)
 293   AC_SUBST(OPENJDK_TARGET_OS_ENV)
 294   AC_SUBST(OPENJDK_TARGET_OS_UPPERCASE)
 295   AC_SUBST(OPENJDK_TARGET_CPU)
 296   AC_SUBST(OPENJDK_TARGET_CPU_ARCH)
 297   AC_SUBST(OPENJDK_TARGET_CPU_BITS)
 298   AC_SUBST(OPENJDK_TARGET_CPU_ENDIAN)
 299 
 300   AC_MSG_CHECKING([openjdk-target os-cpu])
 301   AC_MSG_RESULT([$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
 302 ])
 303 
 304 # Check if a reduced build (32-bit on 64-bit platforms) is requested, and modify behaviour
 305 # accordingly. Must be done after setting up build and target system, but before
 306 # doing anything else with these values.
 307 AC_DEFUN([PLATFORM_SETUP_TARGET_CPU_BITS],
 308 [
 309   AC_ARG_WITH(target-bits, [AS_HELP_STRING([--with-target-bits],
 310        [build 32-bit or 64-bit binaries (for platforms that support it), e.g. --with-target-bits=32 @<:@guessed@:>@])])
 311 
 312   # We have three types of compiles:
 313   # native  == normal compilation, target system == build system
 314   # cross   == traditional cross compilation, target system != build system; special toolchain needed
 315   # reduced == using native compilers, but with special flags (e.g. -m32) to produce 32-bit builds on 64-bit machines
 316   #
 317   if test "x$OPENJDK_BUILD_AUTOCONF_NAME" != "x$OPENJDK_TARGET_AUTOCONF_NAME"; then
 318     # We're doing a proper cross-compilation
 319     COMPILE_TYPE="cross"
 320   else
 321     COMPILE_TYPE="native"
 322   fi
 323 
 324   if test "x$with_target_bits" != x; then
 325     if test "x$COMPILE_TYPE" = "xcross"; then
 326       AC_MSG_ERROR([It is not possible to combine --with-target-bits=X and proper cross-compilation. Choose either.])
 327     fi
 328 
 329     if test "x$with_target_bits" = x32 && test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
 330       # A reduced build is requested
 331       COMPILE_TYPE="reduced"
 332       OPENJDK_TARGET_CPU_BITS=32
 333       if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
 334         OPENJDK_TARGET_CPU=x86
 335       elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
 336         OPENJDK_TARGET_CPU=sparc
 337       else
 338         AC_MSG_ERROR([Reduced build (--with-target-bits=32) is only supported on x86_64 and sparcv9])
 339       fi
 340     elif test "x$with_target_bits" = x64 && test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
 341       AC_MSG_ERROR([It is not possible to use --with-target-bits=64 on a 32 bit system. Use proper cross-compilation instead.])
 342     elif test "x$with_target_bits" = "x$OPENJDK_TARGET_CPU_BITS"; then
 343       AC_MSG_NOTICE([--with-target-bits are set to build platform address size; argument has no meaning])
 344     else
 345       AC_MSG_ERROR([--with-target-bits can only be 32 or 64, you specified $with_target_bits!])
 346     fi
 347   fi
 348   AC_SUBST(COMPILE_TYPE)
 349 
 350   AC_MSG_CHECKING([compilation type])
 351   AC_MSG_RESULT([$COMPILE_TYPE])
 352 ])
 353 
 354 # Setup the legacy variables, for controlling the old makefiles.
 355 #
 356 AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS],
 357 [
 358   PLATFORM_SETUP_LEGACY_VARS_HELPER([TARGET])
 359   PLATFORM_SETUP_LEGACY_VARS_HELPER([BUILD])
 360 ])
 361 
 362 # $1 - Either TARGET or BUILD to setup the variables for.
 363 AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS_HELPER],
 364 [
 365   # Also store the legacy naming of the cpu.
 366   # Ie i586 and amd64 instead of x86 and x86_64
 367   OPENJDK_$1_CPU_LEGACY="$OPENJDK_$1_CPU"
 368   if test "x$OPENJDK_$1_CPU" = xx86; then
 369     OPENJDK_$1_CPU_LEGACY="i586"
 370   elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
 371     # On all platforms except MacOSX replace x86_64 with amd64.
 372     OPENJDK_$1_CPU_LEGACY="amd64"
 373   elif test "x$OPENJDK_$1_CPU" = xalpha; then
 374     # Avoid name collisions with variables named alpha
 375     OPENJDK_$1_CPU_LEGACY="_alpha_"
 376   elif test "x$OPENJDK_$1_CPU" = xsh; then
 377     # Avoid name collisions with variables named sh
 378     OPENJDK_$1_CPU_LEGACY="_sh_"
 379   fi
 380   AC_SUBST(OPENJDK_$1_CPU_LEGACY)
 381 
 382   # And the second legacy naming of the cpu.
 383   # Ie i386 and amd64 instead of x86 and x86_64.
 384   OPENJDK_$1_CPU_LEGACY_LIB="$OPENJDK_$1_CPU"
 385   if test "x$OPENJDK_$1_CPU" = xx86; then
 386     OPENJDK_$1_CPU_LEGACY_LIB="i386"
 387   elif test "x$OPENJDK_$1_CPU" = xx86_64; then
 388     OPENJDK_$1_CPU_LEGACY_LIB="amd64"
 389   fi
 390   AC_SUBST(OPENJDK_$1_CPU_LEGACY_LIB)
 391 
 392   # Setup OPENJDK_$1_CPU_OSARCH, which is used to set the os.arch Java system property
 393   OPENJDK_$1_CPU_OSARCH="$OPENJDK_$1_CPU"
 394   if test "x$OPENJDK_$1_OS" = xlinux && test "x$OPENJDK_$1_CPU" = xx86; then
 395     # On linux only, we replace x86 with i386.
 396     OPENJDK_$1_CPU_OSARCH="i386"
 397   elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
 398     # On all platforms except macosx, we replace x86_64 with amd64.
 399     OPENJDK_$1_CPU_OSARCH="amd64"
 400   fi
 401   AC_SUBST(OPENJDK_$1_CPU_OSARCH)
 402 
 403   OPENJDK_$1_CPU_JLI="$OPENJDK_$1_CPU"
 404   if test "x$OPENJDK_$1_CPU" = xx86; then
 405     OPENJDK_$1_CPU_JLI="i386"
 406   elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
 407     # On all platforms except macosx, we replace x86_64 with amd64.
 408     OPENJDK_$1_CPU_JLI="amd64"
 409   fi
 410 
 411   # The new version string in JDK 9 also defined new naming of OS and ARCH for bundles
 412   # Macosx is osx and x86_64 is x64
 413   if test "x$OPENJDK_$1_OS" = xmacosx; then
 414     OPENJDK_$1_OS_BUNDLE="osx"
 415   else
 416     OPENJDK_$1_OS_BUNDLE="$OPENJDK_TARGET_OS"
 417   fi
 418   if test "x$OPENJDK_$1_CPU" = xx86_64; then
 419     OPENJDK_$1_CPU_BUNDLE="x64"
 420   else
 421     OPENJDK_$1_CPU_BUNDLE="$OPENJDK_$1_CPU"
 422   fi
 423   OPENJDK_$1_BUNDLE_PLATFORM="${OPENJDK_$1_OS_BUNDLE}-${OPENJDK_$1_CPU_BUNDLE}"
 424   AC_SUBST(OPENJDK_$1_BUNDLE_PLATFORM)
 425 
 426   if test "x$COMPILE_TYPE" = "xcross"; then
 427     # FIXME: ... or should this include reduced builds..?
 428     DEFINE_CROSS_COMPILE_ARCH="CROSS_COMPILE_ARCH:=$OPENJDK_$1_CPU_LEGACY"
 429   else
 430     DEFINE_CROSS_COMPILE_ARCH=""
 431   fi
 432   AC_SUBST(DEFINE_CROSS_COMPILE_ARCH)
 433 
 434   # Convert openjdk platform names to hotspot names
 435 
 436   HOTSPOT_$1_OS=${OPENJDK_$1_OS}
 437   if test "x$OPENJDK_$1_OS" = xmacosx; then
 438     HOTSPOT_$1_OS=bsd
 439   fi
 440   AC_SUBST(HOTSPOT_$1_OS)
 441 
 442   HOTSPOT_$1_OS_TYPE=${OPENJDK_$1_OS_TYPE}
 443   if test "x$OPENJDK_$1_OS_TYPE" = xunix; then
 444     HOTSPOT_$1_OS_TYPE=posix
 445   fi
 446   AC_SUBST(HOTSPOT_$1_OS_TYPE)
 447 
 448   HOTSPOT_$1_CPU=${OPENJDK_$1_CPU}
 449   if test "x$OPENJDK_$1_CPU" = xx86; then
 450     HOTSPOT_$1_CPU=x86_32
 451   elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
 452     HOTSPOT_$1_CPU=sparc
 453   elif test "x$OPENJDK_$1_CPU" = xppc64; then
 454     HOTSPOT_$1_CPU=ppc_64
 455   elif test "x$OPENJDK_$1_CPU" = xppc64le; then
 456     HOTSPOT_$1_CPU=ppc_64
 457   fi
 458   AC_SUBST(HOTSPOT_$1_CPU)
 459 
 460   # This is identical with OPENJDK_*, but define anyway for consistency.
 461   HOTSPOT_$1_CPU_ARCH=${OPENJDK_$1_CPU_ARCH}
 462   AC_SUBST(HOTSPOT_$1_CPU_ARCH)
 463 
 464   # Setup HOTSPOT_$1_CPU_DEFINE
 465   if test "x$OPENJDK_$1_CPU" = xx86; then
 466     HOTSPOT_$1_CPU_DEFINE=IA32
 467   elif test "x$OPENJDK_$1_CPU" = xx86_64; then
 468     HOTSPOT_$1_CPU_DEFINE=AMD64
 469   elif test "x$OPENJDK_$1_CPU" = xx32; then
 470     HOTSPOT_$1_CPU_DEFINE=X32
 471   elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
 472     HOTSPOT_$1_CPU_DEFINE=SPARC
 473   elif test "x$OPENJDK_$1_CPU" = xaarch64; then
 474     HOTSPOT_$1_CPU_DEFINE=AARCH64
 475   elif test "x$OPENJDK_$1_CPU" = xppc64; then
 476     HOTSPOT_$1_CPU_DEFINE=PPC64
 477   elif test "x$OPENJDK_$1_CPU" = xppc64le; then
 478     HOTSPOT_$1_CPU_DEFINE=PPC64
 479 
 480   # The cpu defines below are for zero, we don't support them directly.
 481   elif test "x$OPENJDK_$1_CPU" = xsparc; then
 482     HOTSPOT_$1_CPU_DEFINE=SPARC
 483   elif test "x$OPENJDK_$1_CPU" = xppc; then
 484     HOTSPOT_$1_CPU_DEFINE=PPC32
 485   elif test "x$OPENJDK_$1_CPU" = xs390; then
 486     HOTSPOT_$1_CPU_DEFINE=S390
 487   elif test "x$OPENJDK_$1_CPU" = xs390x; then
 488     HOTSPOT_$1_CPU_DEFINE=S390
 489   elif test "x$OPENJDK_$1_CPU" = xriscv64; then
 490     HOTSPOT_$1_CPU_DEFINE=RISCV
 491   elif test "x$OPENJDK_$1_CPU" != x; then
 492     HOTSPOT_$1_CPU_DEFINE=$(echo $OPENJDK_$1_CPU | tr a-z A-Z)
 493   fi
 494   AC_SUBST(HOTSPOT_$1_CPU_DEFINE)
 495 
 496   # For historical reasons, the OS include directories have odd names.
 497   OPENJDK_$1_OS_INCLUDE_SUBDIR="$OPENJDK_TARGET_OS"
 498   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
 499     OPENJDK_$1_OS_INCLUDE_SUBDIR="win32"
 500   elif test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
 501     OPENJDK_$1_OS_INCLUDE_SUBDIR="darwin"
 502   fi
 503   AC_SUBST(OPENJDK_$1_OS_INCLUDE_SUBDIR)
 504 ])
 505 
 506 AC_DEFUN([PLATFORM_SET_RELEASE_FILE_OS_VALUES],
 507 [
 508   if test "x$OPENJDK_TARGET_OS" = "xlinux"; then
 509     RELEASE_FILE_OS_NAME=Linux
 510   fi
 511   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
 512     RELEASE_FILE_OS_NAME=Windows
 513   fi
 514   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
 515     RELEASE_FILE_OS_NAME="Darwin"
 516   fi
 517   if test "x$OPENJDK_TARGET_OS" = "xaix"; then
 518     RELEASE_FILE_OS_NAME="AIX"
 519   fi
 520   RELEASE_FILE_OS_ARCH=${OPENJDK_TARGET_CPU}
 521 
 522   AC_SUBST(RELEASE_FILE_OS_NAME)
 523   AC_SUBST(RELEASE_FILE_OS_ARCH)
 524 ])
 525 
 526 AC_DEFUN([PLATFORM_SET_MODULE_TARGET_OS_VALUES],
 527 [
 528   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
 529     OPENJDK_MODULE_TARGET_OS_NAME="macos"
 530   else
 531     OPENJDK_MODULE_TARGET_OS_NAME="$OPENJDK_TARGET_OS"
 532   fi
 533 
 534   if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
 535     OPENJDK_MODULE_TARGET_OS_ARCH="amd64"
 536   else
 537     OPENJDK_MODULE_TARGET_OS_ARCH="$OPENJDK_TARGET_CPU"
 538   fi
 539 
 540   OPENJDK_MODULE_TARGET_PLATFORM="${OPENJDK_MODULE_TARGET_OS_NAME}-${OPENJDK_MODULE_TARGET_OS_ARCH}"
 541   AC_SUBST(OPENJDK_MODULE_TARGET_PLATFORM)
 542 ])
 543 
 544 #%%% Build and target systems %%%
 545 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_AND_TARGET],
 546 [
 547   # Figure out the build and target systems. # Note that in autoconf terminology, "build" is obvious, but "target"
 548   # is confusing; it assumes you are cross-compiling a cross-compiler (!)  and "target" is thus the target of the
 549   # product you're building. The target of this build is called "host". Since this is confusing to most people, we
 550   # have not adopted that system, but use "target" as the platform we are building for. In some places though we need
 551   # to use the configure naming style.
 552   AC_CANONICAL_BUILD
 553   AC_CANONICAL_HOST
 554   AC_CANONICAL_TARGET
 555 
 556   PLATFORM_EXTRACT_TARGET_AND_BUILD
 557   PLATFORM_SETUP_TARGET_CPU_BITS
 558   PLATFORM_SET_MODULE_TARGET_OS_VALUES
 559   PLATFORM_SET_RELEASE_FILE_OS_VALUES
 560   PLATFORM_SETUP_LEGACY_VARS
 561 
 562   # Deprecated in JDK 15
 563   UTIL_DEPRECATED_ARG_ENABLE(deprecated-ports)
 564 ])
 565 
 566 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_OS_VERSION],
 567 [
 568   ###############################################################################
 569 
 570   # Note that this is the build platform OS version!
 571 
 572   OS_VERSION="`uname -r | ${SED} 's!\.! !g' | ${SED} 's!-! !g'`"
 573   OS_VERSION_MAJOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 1 -d ' '`"
 574   OS_VERSION_MINOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 2 -d ' '`"
 575   OS_VERSION_MICRO="`${ECHO} ${OS_VERSION} | ${CUT} -f 3 -d ' '`"
 576   AC_SUBST(OS_VERSION_MAJOR)
 577   AC_SUBST(OS_VERSION_MINOR)
 578   AC_SUBST(OS_VERSION_MICRO)
 579 ])
 580 
 581 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_BITS],
 582 [
 583   ###############################################################################
 584   #
 585   # Now we check if libjvm.so will use 32 or 64 bit pointers for the C/C++ code.
 586   # (The JVM can use 32 or 64 bit Java pointers but that decision
 587   # is made at runtime.)
 588   #
 589 
 590   # Make compilation sanity check
 591   AC_CHECK_HEADERS([stdio.h], , [
 592     AC_MSG_NOTICE([Failed to compile stdio.h. This likely implies missing compile dependencies.])
 593     if test "x$COMPILE_TYPE" = xreduced; then
 594       HELP_MSG_MISSING_DEPENDENCY([reduced])
 595       AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed. $HELP_MSG])
 596     elif test "x$COMPILE_TYPE" = xcross; then
 597       AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.])
 598     fi
 599     AC_MSG_ERROR([Cannot continue.])
 600   ])
 601 
 602   AC_CHECK_SIZEOF([int *], [1111])
 603 
 604   # AC_CHECK_SIZEOF defines 'ac_cv_sizeof_int_p' to hold the number of bytes used by an 'int*'
 605   if test "x$ac_cv_sizeof_int_p" = x; then
 606     # The test failed, lets stick to the assumed value.
 607     AC_MSG_WARN([The number of bits in the target could not be determined, using $OPENJDK_TARGET_CPU_BITS.])
 608   else
 609     TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p`
 610 
 611     if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then
 612       AC_MSG_NOTICE([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS)])
 613       if test "x$COMPILE_TYPE" = xreduced; then
 614         HELP_MSG_MISSING_DEPENDENCY([reduced])
 615         AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed. $HELP_MSG])
 616       elif test "x$COMPILE_TYPE" = xcross; then
 617         AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.])
 618       fi
 619       AC_MSG_ERROR([Cannot continue.])
 620     fi
 621   fi
 622 
 623   AC_MSG_CHECKING([for target address size])
 624   AC_MSG_RESULT([$OPENJDK_TARGET_CPU_BITS bits])
 625 ])
 626 
 627 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_ENDIANNESS],
 628 [
 629   ###############################################################################
 630   #
 631   # Is the target little of big endian?
 632   #
 633   AC_C_BIGENDIAN([ENDIAN="big"],[ENDIAN="little"],[ENDIAN="unknown"],[ENDIAN="universal_endianness"])
 634 
 635   if test "x$ENDIAN" = xuniversal_endianness; then
 636     AC_MSG_ERROR([Building with both big and little endianness is not supported])
 637   fi
 638   if test "x$ENDIAN" != "x$OPENJDK_TARGET_CPU_ENDIAN"; then
 639     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)])
 640   fi
 641 ])