@  rev 1242 : 8067330: ZERO_ARCHDEF incorrectly defined for PPC/PPC64 architectures
|

   1 #
   2 # Copyright (c) 2011, 2012, 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     arm*)
  46       VAR_CPU=arm
  47       VAR_CPU_ARCH=arm
  48       VAR_CPU_BITS=32
  49       VAR_CPU_ENDIAN=little
  50       ;;
  51     powerpc)
  52       VAR_CPU=ppc
  53       VAR_CPU_ARCH=ppc
  54       VAR_CPU_BITS=32
  55       VAR_CPU_ENDIAN=big
  56       ;;
  57     powerpc64)
  58       VAR_CPU=ppc64
  59       VAR_CPU_ARCH=ppc
  60       VAR_CPU_BITS=64
  61       VAR_CPU_ENDIAN=big
  62       ;;
  63     powerpc64le)
  64       VAR_CPU=ppc64
  65       VAR_CPU_ARCH=ppc
  66       VAR_CPU_BITS=64
  67       VAR_CPU_ENDIAN=little
  68       ;;
  69     s390)
  70       VAR_CPU=s390
  71       VAR_CPU_ARCH=s390
  72       VAR_CPU_BITS=32
  73       VAR_CPU_ENDIAN=big
  74       ;;
  75     s390x)
  76       VAR_CPU=s390x
  77       VAR_CPU_ARCH=s390
  78       VAR_CPU_BITS=64
  79       VAR_CPU_ENDIAN=big
  80       ;;
  81     sparc)
  82       VAR_CPU=sparc
  83       VAR_CPU_ARCH=sparc
  84       VAR_CPU_BITS=32
  85       VAR_CPU_ENDIAN=big
  86       ;;
  87     sparcv9|sparc64)
  88       VAR_CPU=sparcv9
  89       VAR_CPU_ARCH=sparc
  90       VAR_CPU_BITS=64
  91       VAR_CPU_ENDIAN=big
  92       ;;
  93     *)
  94       AC_MSG_ERROR([unsupported cpu $1])
  95       ;;
  96   esac
  97 ])
  98 
  99 # Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
 100 # Converts autoconf style OS name to OpenJDK style, into
 101 # VAR_OS, VAR_OS_TYPE and VAR_OS_ENV.
 102 AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_OS],
 103 [
 104   case "$1" in
 105     *linux*)
 106       VAR_OS=linux
 107       VAR_OS_TYPE=unix
 108       ;;
 109     *solaris*)
 110       VAR_OS=solaris
 111       VAR_OS_TYPE=unix
 112       ;;
 113     *darwin*)
 114       VAR_OS=macosx
 115       VAR_OS_TYPE=unix
 116       ;;
 117     *bsd*)
 118       VAR_OS=bsd
 119       VAR_OS_TYPE=unix
 120       ;;
 121     *cygwin*)
 122       VAR_OS=windows
 123       VAR_OS_ENV=windows.cygwin
 124       ;;
 125     *mingw*)
 126       VAR_OS=windows
 127       VAR_OS_ENV=windows.msys
 128       ;;
 129     *aix*)
 130       VAR_OS=aix
 131       VAR_OS_TYPE=unix
 132       ;;
 133     *)
 134       AC_MSG_ERROR([unsupported operating system $1])
 135       ;;
 136   esac
 137 ])
 138 
 139 # Expects $host_os $host_cpu $build_os and $build_cpu
 140 # and $with_target_bits to have been setup!
 141 #
 142 # Translate the standard triplet(quadruplet) definition
 143 # of the target/build system into OPENJDK_TARGET_OS, OPENJDK_TARGET_CPU,
 144 # OPENJDK_BUILD_OS, etc.
 145 AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
 146 [
 147   # Copy the autoconf trip/quadruplet verbatim to OPENJDK_TARGET_AUTOCONF_NAME
 148   # (from the autoconf "host") and OPENJDK_BUILD_AUTOCONF_NAME
 149   # Note that we might later on rewrite e.g. OPENJDK_TARGET_CPU due to reduced build,
 150   # but this will not change the value of OPENJDK_TARGET_AUTOCONF_NAME.
 151   OPENJDK_TARGET_AUTOCONF_NAME="$host"
 152   OPENJDK_BUILD_AUTOCONF_NAME="$build"
 153   AC_SUBST(OPENJDK_TARGET_AUTOCONF_NAME)
 154   AC_SUBST(OPENJDK_BUILD_AUTOCONF_NAME)
 155 
 156   # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
 157   PLATFORM_EXTRACT_VARS_FROM_OS($build_os)
 158   PLATFORM_EXTRACT_VARS_FROM_CPU($build_cpu)
 159   # ..and setup our own variables. (Do this explicitely to facilitate searching)
 160   OPENJDK_BUILD_OS="$VAR_OS"
 161   if test "x$VAR_OS_TYPE" != x; then
 162     OPENJDK_BUILD_OS_TYPE="$VAR_OS_TYPE"
 163   else
 164     OPENJDK_BUILD_OS_TYPE="$VAR_OS"
 165   fi
 166   if test "x$VAR_OS_ENV" != x; then
 167     OPENJDK_BUILD_OS_ENV="$VAR_OS_ENV"
 168   else
 169     OPENJDK_BUILD_OS_ENV="$VAR_OS"
 170   fi
 171   OPENJDK_BUILD_CPU="$VAR_CPU"
 172   OPENJDK_BUILD_CPU_ARCH="$VAR_CPU_ARCH"
 173   OPENJDK_BUILD_CPU_BITS="$VAR_CPU_BITS"
 174   OPENJDK_BUILD_CPU_ENDIAN="$VAR_CPU_ENDIAN"
 175   AC_SUBST(OPENJDK_BUILD_OS)
 176   AC_SUBST(OPENJDK_BUILD_OS_TYPE)
 177   AC_SUBST(OPENJDK_BUILD_OS_ENV)
 178   AC_SUBST(OPENJDK_BUILD_CPU)
 179   AC_SUBST(OPENJDK_BUILD_CPU_ARCH)
 180   AC_SUBST(OPENJDK_BUILD_CPU_BITS)
 181   AC_SUBST(OPENJDK_BUILD_CPU_ENDIAN)
 182 
 183   AC_MSG_CHECKING([openjdk-build os-cpu])
 184   AC_MSG_RESULT([$OPENJDK_BUILD_OS-$OPENJDK_BUILD_CPU])
 185 
 186   # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
 187   PLATFORM_EXTRACT_VARS_FROM_OS($host_os)
 188   PLATFORM_EXTRACT_VARS_FROM_CPU($host_cpu)
 189   # ... and setup our own variables. (Do this explicitely to facilitate searching)
 190   OPENJDK_TARGET_OS="$VAR_OS"
 191   if test "x$VAR_OS_TYPE" != x; then
 192     OPENJDK_TARGET_OS_TYPE="$VAR_OS_TYPE"
 193   else
 194     OPENJDK_TARGET_OS_TYPE="$VAR_OS"
 195   fi
 196   if test "x$VAR_OS_ENV" != x; then
 197     OPENJDK_TARGET_OS_ENV="$VAR_OS_ENV"
 198   else
 199     OPENJDK_TARGET_OS_ENV="$VAR_OS"
 200   fi
 201   OPENJDK_TARGET_CPU="$VAR_CPU"
 202   OPENJDK_TARGET_CPU_ARCH="$VAR_CPU_ARCH"
 203   OPENJDK_TARGET_CPU_BITS="$VAR_CPU_BITS"
 204   OPENJDK_TARGET_CPU_ENDIAN="$VAR_CPU_ENDIAN"
 205   AC_SUBST(OPENJDK_TARGET_OS)
 206   AC_SUBST(OPENJDK_TARGET_OS_TYPE)
 207   AC_SUBST(OPENJDK_TARGET_OS_ENV)
 208   AC_SUBST(OPENJDK_TARGET_CPU)
 209   AC_SUBST(OPENJDK_TARGET_CPU_ARCH)
 210   AC_SUBST(OPENJDK_TARGET_CPU_BITS)
 211   AC_SUBST(OPENJDK_TARGET_CPU_ENDIAN)
 212 
 213   AC_MSG_CHECKING([openjdk-target os-cpu])
 214   AC_MSG_RESULT([$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
 215 ])
 216 
 217 # Check if a reduced build (32-bit on 64-bit platforms) is requested, and modify behaviour
 218 # accordingly. Must be done after setting up build and target system, but before
 219 # doing anything else with these values.
 220 AC_DEFUN([PLATFORM_SETUP_TARGET_CPU_BITS],
 221 [
 222   AC_ARG_WITH(target-bits, [AS_HELP_STRING([--with-target-bits],
 223        [build 32-bit or 64-bit binaries (for platforms that support it), e.g. --with-target-bits=32 @<:@guessed@:>@])])
 224 
 225   # We have three types of compiles:
 226   # native  == normal compilation, target system == build system
 227   # cross   == traditional cross compilation, target system != build system; special toolchain needed
 228   # reduced == using native compilers, but with special flags (e.g. -m32) to produce 32-bit builds on 64-bit machines
 229   #
 230   if test "x$OPENJDK_BUILD_AUTOCONF_NAME" != "x$OPENJDK_TARGET_AUTOCONF_NAME"; then
 231     # We're doing a proper cross-compilation
 232     COMPILE_TYPE="cross"
 233   else
 234     COMPILE_TYPE="native"
 235   fi
 236 
 237   if test "x$with_target_bits" != x; then
 238     if test "x$COMPILE_TYPE" = "xcross"; then
 239       AC_MSG_ERROR([It is not possible to combine --with-target-bits=X and proper cross-compilation. Choose either.])
 240     fi
 241 
 242     if test "x$with_target_bits" = x32 && test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
 243       # A reduced build is requested
 244       COMPILE_TYPE="reduced"
 245       OPENJDK_TARGET_CPU_BITS=32
 246       if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
 247         OPENJDK_TARGET_CPU=x86
 248       elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
 249         OPENJDK_TARGET_CPU=sparc
 250       else
 251         AC_MSG_ERROR([Reduced build (--with-target-bits=32) is only supported on x86_64 and sparcv9])
 252       fi
 253     elif test "x$with_target_bits" = x64 && test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
 254       AC_MSG_ERROR([It is not possible to use --with-target-bits=64 on a 32 bit system. Use proper cross-compilation instead.])
 255     elif test "x$with_target_bits" = "x$OPENJDK_TARGET_CPU_BITS"; then
 256       AC_MSG_NOTICE([--with-target-bits are set to build platform address size; argument has no meaning])
 257     else
 258       AC_MSG_ERROR([--with-target-bits can only be 32 or 64, you specified $with_target_bits!])
 259     fi
 260   fi
 261   AC_SUBST(COMPILE_TYPE)
 262 
 263   AC_MSG_CHECKING([compilation type])
 264   AC_MSG_RESULT([$COMPILE_TYPE])
 265 ])
 266 
 267 # Setup the legacy variables, for controlling the old makefiles.
 268 #
 269 AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS],
 270 [
 271   # Also store the legacy naming of the cpu.
 272   # Ie i586 and amd64 instead of x86 and x86_64
 273   OPENJDK_TARGET_CPU_LEGACY="$OPENJDK_TARGET_CPU"
 274   if test "x$OPENJDK_TARGET_CPU" = xx86; then
 275     OPENJDK_TARGET_CPU_LEGACY="i586"
 276   elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then
 277     # On all platforms except MacOSX replace x86_64 with amd64.
 278     OPENJDK_TARGET_CPU_LEGACY="amd64"
 279   fi
 280   AC_SUBST(OPENJDK_TARGET_CPU_LEGACY)
 281 
 282   # And the second legacy naming of the cpu.
 283   # Ie i386 and amd64 instead of x86 and x86_64.
 284   OPENJDK_TARGET_CPU_LEGACY_LIB="$OPENJDK_TARGET_CPU"
 285   if test "x$OPENJDK_TARGET_CPU" = xx86; then
 286     OPENJDK_TARGET_CPU_LEGACY_LIB="i386"
 287   elif test "x$OPENJDK_TARGET_CPU" = xx86_64; then
 288     OPENJDK_TARGET_CPU_LEGACY_LIB="amd64"
 289   fi
 290   AC_SUBST(OPENJDK_TARGET_CPU_LEGACY_LIB)
 291 
 292   # This is the name of the cpu (but using i386 and amd64 instead of
 293   # x86 and x86_64, respectively), preceeded by a /, to be used when
 294   # locating libraries. On macosx, it's empty, though.
 295   OPENJDK_TARGET_CPU_LIBDIR="/$OPENJDK_TARGET_CPU_LEGACY_LIB"
 296   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
 297     OPENJDK_TARGET_CPU_LIBDIR=""
 298   fi
 299   AC_SUBST(OPENJDK_TARGET_CPU_LIBDIR)
 300 
 301   # OPENJDK_TARGET_CPU_ISADIR is normally empty. On 64-bit Solaris systems, it is set to
 302   # /amd64 or /sparcv9. This string is appended to some library paths, like this:
 303   # /usr/lib${OPENJDK_TARGET_CPU_ISADIR}/libexample.so
 304   OPENJDK_TARGET_CPU_ISADIR=""
 305   if test "x$OPENJDK_TARGET_OS" = xsolaris; then
 306     if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
 307       OPENJDK_TARGET_CPU_ISADIR="/amd64"
 308     elif test "x$OPENJDK_TARGET_CPU" = xsparcv9; then
 309       OPENJDK_TARGET_CPU_ISADIR="/sparcv9"
 310     fi
 311   fi
 312   AC_SUBST(OPENJDK_TARGET_CPU_ISADIR)
 313 
 314   # Setup OPENJDK_TARGET_CPU_OSARCH, which is used to set the os.arch Java system property
 315   OPENJDK_TARGET_CPU_OSARCH="$OPENJDK_TARGET_CPU"
 316   if test "x$OPENJDK_TARGET_OS" = xlinux && test "x$OPENJDK_TARGET_CPU" = xx86; then
 317     # On linux only, we replace x86 with i386.
 318     OPENJDK_TARGET_CPU_OSARCH="i386"
 319   elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then
 320     # On all platforms except macosx, we replace x86_64 with amd64.
 321     OPENJDK_TARGET_CPU_OSARCH="amd64"
 322   fi
 323   AC_SUBST(OPENJDK_TARGET_CPU_OSARCH)
 324 
 325   OPENJDK_TARGET_CPU_JLI="$OPENJDK_TARGET_CPU"
 326   if test "x$OPENJDK_TARGET_CPU" = xx86; then
 327     OPENJDK_TARGET_CPU_JLI="i386"
 328   elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then
 329     # On all platforms except macosx, we replace x86_64 with amd64.
 330     OPENJDK_TARGET_CPU_JLI="amd64"
 331   fi
 332   # Now setup the -D flags for building libjli.
 333   OPENJDK_TARGET_CPU_JLI_CFLAGS="-DLIBARCHNAME='\"$OPENJDK_TARGET_CPU_JLI\"'"
 334   if test "x$OPENJDK_TARGET_OS" = xsolaris; then
 335     if test "x$OPENJDK_TARGET_CPU_ARCH" = xsparc; then
 336       OPENJDK_TARGET_CPU_JLI_CFLAGS="$OPENJDK_TARGET_CPU_JLI_CFLAGS -DLIBARCH32NAME='\"sparc\"' -DLIBARCH64NAME='\"sparcv9\"'"
 337     elif test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then
 338       OPENJDK_TARGET_CPU_JLI_CFLAGS="$OPENJDK_TARGET_CPU_JLI_CFLAGS -DLIBARCH32NAME='\"i386\"' -DLIBARCH64NAME='\"amd64\"'"
 339     fi
 340   fi
 341   AC_SUBST(OPENJDK_TARGET_CPU_JLI_CFLAGS)
 342 
 343   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
 344       OPENJDK_TARGET_OS_EXPORT_DIR=macosx
 345   else
 346       OPENJDK_TARGET_OS_EXPORT_DIR=${OPENJDK_TARGET_OS_TYPE}
 347   fi
 348   AC_SUBST(OPENJDK_TARGET_OS_EXPORT_DIR)
 349 
 350   if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
 351     A_LP64="LP64:="
 352     # -D_LP64=1 is only set on linux and mac. Setting on windows causes diff in
 353     # unpack200.exe
 354     if test "x$OPENJDK_TARGET_OS" = xlinux || test "x$OPENJDK_TARGET_OS" = xmacosx; then
 355       ADD_LP64="-D_LP64=1"
 356     fi
 357   fi
 358   AC_SUBST(LP64,$A_LP64)
 359 
 360   if test "x$COMPILE_TYPE" = "xcross"; then
 361     # FIXME: ... or should this include reduced builds..?
 362     DEFINE_CROSS_COMPILE_ARCH="CROSS_COMPILE_ARCH:=$OPENJDK_TARGET_CPU_LEGACY"
 363   else
 364     DEFINE_CROSS_COMPILE_ARCH=""
 365   fi
 366   AC_SUBST(DEFINE_CROSS_COMPILE_ARCH)
 367 
 368   # ZERO_ARCHDEF is used to enable architecture-specific code
 369   case "${OPENJDK_TARGET_CPU}" in
 370     ppc)     ZERO_ARCHDEF=PPC32 ;;
 371     ppc64)   ZERO_ARCHDEF=PPC64 ;;
 372     s390*)   ZERO_ARCHDEF=S390  ;;
 373     sparc*)  ZERO_ARCHDEF=SPARC ;;
 374     x86_64*) ZERO_ARCHDEF=AMD64 ;;
 375     x86)     ZERO_ARCHDEF=IA32  ;;
 376     *)      ZERO_ARCHDEF=$(echo "${OPENJDK_TARGET_CPU_LEGACY_LIB}" | tr a-z A-Z)
 377   esac
 378   AC_SUBST(ZERO_ARCHDEF)
 379 ])
 380 
 381 AC_DEFUN([PLATFORM_SET_RELEASE_FILE_OS_VALUES],
 382 [
 383   if test "x$OPENJDK_TARGET_OS" = "xsolaris"; then
 384     REQUIRED_OS_NAME=SunOS
 385     REQUIRED_OS_VERSION=5.10
 386   fi
 387   if test "x$OPENJDK_TARGET_OS" = "xlinux"; then
 388     REQUIRED_OS_NAME=Linux
 389     REQUIRED_OS_VERSION=2.6
 390   fi
 391   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
 392     REQUIRED_OS_NAME=Windows
 393     if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then
 394       REQUIRED_OS_VERSION=5.2
 395     else
 396       REQUIRED_OS_VERSION=5.1
 397     fi
 398   fi
 399   if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
 400     REQUIRED_OS_NAME=Darwin
 401     REQUIRED_OS_VERSION=11.2
 402   fi
 403 
 404   AC_SUBST(REQUIRED_OS_NAME)
 405   AC_SUBST(REQUIRED_OS_VERSION)
 406 ])
 407 
 408 #%%% Build and target systems %%%
 409 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_AND_TARGET],
 410 [
 411   # Figure out the build and target systems. # Note that in autoconf terminology, "build" is obvious, but "target"
 412   # is confusing; it assumes you are cross-compiling a cross-compiler (!)  and "target" is thus the target of the
 413   # product you're building. The target of this build is called "host". Since this is confusing to most people, we
 414   # have not adopted that system, but use "target" as the platform we are building for. In some places though we need
 415   # to use the configure naming style.
 416   AC_CANONICAL_BUILD
 417   AC_CANONICAL_HOST
 418   AC_CANONICAL_TARGET
 419 
 420   PLATFORM_EXTRACT_TARGET_AND_BUILD
 421   PLATFORM_SETUP_TARGET_CPU_BITS
 422   PLATFORM_SET_RELEASE_FILE_OS_VALUES
 423   PLATFORM_SETUP_LEGACY_VARS
 424 ])
 425 
 426 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_OS_VERSION],
 427 [
 428   ###############################################################################
 429 
 430   # Note that this is the build platform OS version!
 431 
 432   OS_VERSION="`uname -r | ${SED} 's!\.! !g' | ${SED} 's!-! !g'`"
 433   OS_VERSION_MAJOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 1 -d ' '`"
 434   OS_VERSION_MINOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 2 -d ' '`"
 435   OS_VERSION_MICRO="`${ECHO} ${OS_VERSION} | ${CUT} -f 3 -d ' '`"
 436   AC_SUBST(OS_VERSION_MAJOR)
 437   AC_SUBST(OS_VERSION_MINOR)
 438   AC_SUBST(OS_VERSION_MICRO)
 439 ])
 440 
 441 # Support macro for PLATFORM_SETUP_OPENJDK_TARGET_BITS.
 442 # Add -mX to various FLAGS variables.
 443 AC_DEFUN([PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS],
 444 [
 445   # When we add flags to the "official" CFLAGS etc, we need to
 446   # keep track of these additions in ADDED_CFLAGS etc. These
 447   # will later be checked to make sure only controlled additions
 448   # have been made to CFLAGS etc.
 449   ADDED_CFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
 450   ADDED_CXXFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
 451   ADDED_LDFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
 452 
 453   CFLAGS="${CFLAGS}${ADDED_CFLAGS}"
 454   CXXFLAGS="${CXXFLAGS}${ADDED_CXXFLAGS}"
 455   LDFLAGS="${LDFLAGS}${ADDED_LDFLAGS}"
 456 
 457   CFLAGS_JDK="${CFLAGS_JDK}${ADDED_CFLAGS}"
 458   CXXFLAGS_JDK="${CXXFLAGS_JDK}${ADDED_CXXFLAGS}"
 459   LDFLAGS_JDK="${LDFLAGS_JDK}${ADDED_LDFLAGS}"
 460 ])
 461 
 462 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_BITS],
 463 [
 464   ###############################################################################
 465   #
 466   # Now we check if libjvm.so will use 32 or 64 bit pointers for the C/C++ code.
 467   # (The JVM can use 32 or 64 bit Java pointers but that decision
 468   # is made at runtime.)
 469   #
 470 
 471   if test "x$OPENJDK_TARGET_OS" = xsolaris || test "x$OPENJDK_TARGET_OS" = xaix; then
 472     # Always specify -m flag on Solaris
 473     # And -q on AIX because otherwise the compiler produces 32-bit objects by default
 474     PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS
 475   elif test "x$COMPILE_TYPE" = xreduced; then
 476     if test "x$OPENJDK_TARGET_OS_TYPE" = xunix; then
 477       # Specify -m if running reduced on unix platforms
 478       PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS
 479     fi
 480   fi
 481 
 482   # Make compilation sanity check
 483   AC_CHECK_HEADERS([stdio.h], , [
 484     AC_MSG_NOTICE([Failed to compile stdio.h. This likely implies missing compile dependencies.])
 485     if test "x$COMPILE_TYPE" = xreduced; then
 486       AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed.])
 487     elif test "x$COMPILE_TYPE" = xcross; then
 488       AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.])
 489     fi
 490     AC_MSG_ERROR([Cannot continue.])
 491   ])
 492 
 493   AC_CHECK_SIZEOF([int *], [1111])
 494 
 495   # AC_CHECK_SIZEOF defines 'ac_cv_sizeof_int_p' to hold the number of bytes used by an 'int*'
 496   if test "x$ac_cv_sizeof_int_p" = x; then
 497     # The test failed, lets stick to the assumed value.
 498     AC_MSG_WARN([The number of bits in the target could not be determined, using $OPENJDK_TARGET_CPU_BITS.])
 499   else
 500     TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p`
 501 
 502     if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then
 503       # This situation may happen on 64-bit platforms where the compiler by default only generates 32-bit objects
 504       # Let's try to implicitely set the compilers target architecture and retry the test
 505       AC_MSG_NOTICE([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS).])
 506       AC_MSG_NOTICE([I'll retry after setting the platforms compiler target bits flag to ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}])
 507       PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS
 508 
 509       # We have to unset 'ac_cv_sizeof_int_p' first, otherwise AC_CHECK_SIZEOF will use the previously cached value!
 510       unset ac_cv_sizeof_int_p
 511       # And we have to undef the definition of SIZEOF_INT_P in confdefs.h by the previous invocation of AC_CHECK_SIZEOF
 512       cat >>confdefs.h <<_ACEOF
 513 #undef SIZEOF_INT_P
 514 _ACEOF
 515 
 516       AC_CHECK_SIZEOF([int *], [1111])
 517 
 518       TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p`
 519 
 520       if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then
 521         AC_MSG_ERROR([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS)])
 522       fi
 523     fi
 524   fi
 525 
 526   AC_MSG_CHECKING([for target address size])
 527   AC_MSG_RESULT([$OPENJDK_TARGET_CPU_BITS bits])
 528 ])
 529 
 530 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_ENDIANNESS],
 531 [
 532   ###############################################################################
 533   #
 534   # Is the target little of big endian?
 535   #
 536   AC_C_BIGENDIAN([ENDIAN="big"],[ENDIAN="little"],[ENDIAN="unknown"],[ENDIAN="universal_endianness"])
 537 
 538   if test "x$ENDIAN" = xuniversal_endianness; then
 539     AC_MSG_ERROR([Building with both big and little endianness is not supported])
 540   fi
 541   if test "x$ENDIAN" != "x$OPENJDK_TARGET_CPU_ENDIAN"; then
 542     AC_MSG_ERROR([The tested endian in the target ($ENDIAN) differs from the endian expected to be found in the target ($OPENJDK_TARGET_CPU_ENDIAN)])
 543   fi
 544 ])
--- EOF ---