common/autoconf/platform.m4

Thu, 24 Oct 2013 20:45:43 -0400

author
dholmes
date
Thu, 24 Oct 2013 20:45:43 -0400
changeset 872
3c48e11c3901
parent 839
174a54ce39c4
child 972
f3697e0783e2
permissions
-rw-r--r--

8016096: [macosx] jawt_md.h shipped with jdk is outdated
Summary: Revised build system and added platform specific headers for Mac OS X
Reviewed-by: ihse, erikj
Contributed-by: david.dehaven@oracle.com

     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 #
    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     s390)
    64       VAR_CPU=s390
    65       VAR_CPU_ARCH=s390
    66       VAR_CPU_BITS=32
    67       VAR_CPU_ENDIAN=big
    68       ;;
    69     s390x)
    70       VAR_CPU=s390x
    71       VAR_CPU_ARCH=s390
    72       VAR_CPU_BITS=64
    73       VAR_CPU_ENDIAN=big
    74       ;;
    75     sparc)
    76       VAR_CPU=sparc
    77       VAR_CPU_ARCH=sparc
    78       VAR_CPU_BITS=32
    79       VAR_CPU_ENDIAN=big
    80       ;;
    81     sparcv9)
    82       VAR_CPU=sparcv9
    83       VAR_CPU_ARCH=sparc
    84       VAR_CPU_BITS=64
    85       VAR_CPU_ENDIAN=big
    86       ;;
    87     *)
    88       AC_MSG_ERROR([unsupported cpu $1])
    89       ;;
    90   esac
    91 ])
    93 # Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
    94 # Converts autoconf style OS name to OpenJDK style, into
    95 # VAR_OS and VAR_OS_API.
    96 AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_OS],
    97 [
    98   case "$1" in
    99     *linux*)
   100       VAR_OS=linux
   101       VAR_OS_API=posix
   102       VAR_OS_ENV=linux
   103       ;;
   104     *solaris*)
   105       VAR_OS=solaris
   106       VAR_OS_API=posix
   107       VAR_OS_ENV=solaris
   108       ;;
   109     *darwin*)
   110       VAR_OS=macosx
   111       VAR_OS_API=posix
   112       VAR_OS_ENV=macosx
   113       ;;
   114     *bsd*)
   115       VAR_OS=bsd
   116       VAR_OS_API=posix
   117       VAR_OS_ENV=bsd
   118       ;;
   119     *cygwin*)
   120       VAR_OS=windows
   121       VAR_OS_API=winapi
   122       VAR_OS_ENV=windows.cygwin
   123       ;;
   124     *mingw*)
   125       VAR_OS=windows
   126       VAR_OS_API=winapi
   127       VAR_OS_ENV=windows.msys
   128       ;;
   129     *)
   130       AC_MSG_ERROR([unsupported operating system $1])
   131       ;;
   132   esac
   133 ])
   135 # Expects $host_os $host_cpu $build_os and $build_cpu
   136 # and $with_target_bits to have been setup!
   137 #
   138 # Translate the standard triplet(quadruplet) definition
   139 # of the target/build system into OPENJDK_TARGET_OS, OPENJDK_TARGET_CPU,
   140 # OPENJDK_BUILD_OS, etc.
   141 AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
   142 [
   143   # Copy the autoconf trip/quadruplet verbatim to OPENJDK_TARGET_AUTOCONF_NAME
   144   # (from the autoconf "host") and OPENJDK_BUILD_AUTOCONF_NAME
   145   # Note that we might later on rewrite e.g. OPENJDK_TARGET_CPU due to reduced build,
   146   # but this will not change the value of OPENJDK_TARGET_AUTOCONF_NAME.
   147   OPENJDK_TARGET_AUTOCONF_NAME="$host"
   148   OPENJDK_BUILD_AUTOCONF_NAME="$build"
   149   AC_SUBST(OPENJDK_TARGET_AUTOCONF_NAME)
   150   AC_SUBST(OPENJDK_BUILD_AUTOCONF_NAME)
   152   # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
   153   PLATFORM_EXTRACT_VARS_FROM_OS($build_os)
   154   PLATFORM_EXTRACT_VARS_FROM_CPU($build_cpu)
   155   # ..and setup our own variables. (Do this explicitely to facilitate searching)
   156   OPENJDK_BUILD_OS="$VAR_OS"
   157   OPENJDK_BUILD_OS_API="$VAR_OS_API"
   158   OPENJDK_BUILD_OS_ENV="$VAR_OS_ENV"
   159   OPENJDK_BUILD_CPU="$VAR_CPU"
   160   OPENJDK_BUILD_CPU_ARCH="$VAR_CPU_ARCH"
   161   OPENJDK_BUILD_CPU_BITS="$VAR_CPU_BITS"
   162   OPENJDK_BUILD_CPU_ENDIAN="$VAR_CPU_ENDIAN"
   163   AC_SUBST(OPENJDK_BUILD_OS)
   164   AC_SUBST(OPENJDK_BUILD_OS_API)
   165   AC_SUBST(OPENJDK_BUILD_CPU)
   166   AC_SUBST(OPENJDK_BUILD_CPU_ARCH)
   167   AC_SUBST(OPENJDK_BUILD_CPU_BITS)
   168   AC_SUBST(OPENJDK_BUILD_CPU_ENDIAN)
   170   AC_MSG_CHECKING([openjdk-build os-cpu])
   171   AC_MSG_RESULT([$OPENJDK_BUILD_OS-$OPENJDK_BUILD_CPU])
   173   # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
   174   PLATFORM_EXTRACT_VARS_FROM_OS($host_os)
   175   PLATFORM_EXTRACT_VARS_FROM_CPU($host_cpu)
   176   # ... and setup our own variables. (Do this explicitely to facilitate searching)
   177   OPENJDK_TARGET_OS="$VAR_OS"
   178   OPENJDK_TARGET_OS_API="$VAR_OS_API"
   179   OPENJDK_TARGET_OS_ENV="$VAR_OS_ENV"
   180   OPENJDK_TARGET_CPU="$VAR_CPU"
   181   OPENJDK_TARGET_CPU_ARCH="$VAR_CPU_ARCH"
   182   OPENJDK_TARGET_CPU_BITS="$VAR_CPU_BITS"
   183   OPENJDK_TARGET_CPU_ENDIAN="$VAR_CPU_ENDIAN"
   184   AC_SUBST(OPENJDK_TARGET_OS)
   185   AC_SUBST(OPENJDK_TARGET_OS_API)
   186   AC_SUBST(OPENJDK_TARGET_CPU)
   187   AC_SUBST(OPENJDK_TARGET_CPU_ARCH)
   188   AC_SUBST(OPENJDK_TARGET_CPU_BITS)
   189   AC_SUBST(OPENJDK_TARGET_CPU_ENDIAN)
   191   AC_MSG_CHECKING([openjdk-target os-cpu])
   192   AC_MSG_RESULT([$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
   193 ])
   195 # Check if a reduced build (32-bit on 64-bit platforms) is requested, and modify behaviour
   196 # accordingly. Must be done after setting up build and target system, but before
   197 # doing anything else with these values.
   198 AC_DEFUN([PLATFORM_SETUP_TARGET_CPU_BITS],
   199 [
   200   AC_ARG_WITH(target-bits, [AS_HELP_STRING([--with-target-bits],
   201        [build 32-bit or 64-bit binaries (for platforms that support it), e.g. --with-target-bits=32 @<:@guessed@:>@])])
   203   # We have three types of compiles:
   204   # native  == normal compilation, target system == build system
   205   # cross   == traditional cross compilation, target system != build system; special toolchain needed
   206   # reduced == using native compilers, but with special flags (e.g. -m32) to produce 32-bit builds on 64-bit machines
   207   #
   208   if test "x$OPENJDK_BUILD_AUTOCONF_NAME" != "x$OPENJDK_TARGET_AUTOCONF_NAME"; then
   209     # We're doing a proper cross-compilation
   210     COMPILE_TYPE="cross"
   211   else
   212     COMPILE_TYPE="native"
   213   fi
   215   if test "x$with_target_bits" != x; then
   216     if test "x$COMPILE_TYPE" = "xcross"; then
   217       AC_MSG_ERROR([It is not possible to combine --with-target-bits=X and proper cross-compilation. Choose either.])
   218     fi
   220     if test "x$with_target_bits" = x32 && test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
   221       # A reduced build is requested
   222       COMPILE_TYPE="reduced"
   223       OPENJDK_TARGET_CPU_BITS=32
   224       if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
   225         OPENJDK_TARGET_CPU=x86
   226       elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
   227         OPENJDK_TARGET_CPU=sparc
   228       else
   229         AC_MSG_ERROR([Reduced build (--with-target-bits=32) is only supported on x86_64 and sparcv9])
   230       fi
   231     elif test "x$with_target_bits" = x64 && test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
   232       AC_MSG_ERROR([It is not possible to use --with-target-bits=64 on a 32 bit system. Use proper cross-compilation instead.])
   233     elif test "x$with_target_bits" = "x$OPENJDK_TARGET_CPU_BITS"; then
   234       AC_MSG_NOTICE([--with-target-bits are set to build platform address size; argument has no meaning])
   235     else
   236       AC_MSG_ERROR([--with-target-bits can only be 32 or 64, you specified $with_target_bits!])
   237     fi
   238   fi
   239   AC_SUBST(COMPILE_TYPE)
   241   AC_MSG_CHECKING([compilation type])
   242   AC_MSG_RESULT([$COMPILE_TYPE])
   243 ])
   245 # Setup the legacy variables, for controlling the old makefiles.
   246 #
   247 AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS],
   248 [
   249   # Also store the legacy naming of the cpu.
   250   # Ie i586 and amd64 instead of x86 and x86_64
   251   OPENJDK_TARGET_CPU_LEGACY="$OPENJDK_TARGET_CPU"
   252   if test "x$OPENJDK_TARGET_CPU" = xx86; then
   253     OPENJDK_TARGET_CPU_LEGACY="i586"
   254   elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then
   255     # On all platforms except MacOSX replace x86_64 with amd64.
   256     OPENJDK_TARGET_CPU_LEGACY="amd64"
   257   fi
   258   AC_SUBST(OPENJDK_TARGET_CPU_LEGACY)
   260   # And the second legacy naming of the cpu.
   261   # Ie i386 and amd64 instead of x86 and x86_64.
   262   OPENJDK_TARGET_CPU_LEGACY_LIB="$OPENJDK_TARGET_CPU"
   263   if test "x$OPENJDK_TARGET_CPU" = xx86; then
   264     OPENJDK_TARGET_CPU_LEGACY_LIB="i386"
   265   elif test "x$OPENJDK_TARGET_CPU" = xx86_64; then
   266     OPENJDK_TARGET_CPU_LEGACY_LIB="amd64"
   267   fi
   268   AC_SUBST(OPENJDK_TARGET_CPU_LEGACY_LIB)
   270   # This is the name of the cpu (but using i386 and amd64 instead of
   271   # x86 and x86_64, respectively), preceeded by a /, to be used when
   272   # locating libraries. On macosx, it's empty, though.
   273   OPENJDK_TARGET_CPU_LIBDIR="/$OPENJDK_TARGET_CPU_LEGACY_LIB"
   274   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
   275     OPENJDK_TARGET_CPU_LIBDIR=""
   276   fi
   277   AC_SUBST(OPENJDK_TARGET_CPU_LIBDIR)
   279   # OPENJDK_TARGET_CPU_ISADIR is normally empty. On 64-bit Solaris systems, it is set to
   280   # /amd64 or /sparcv9. This string is appended to some library paths, like this:
   281   # /usr/lib${OPENJDK_TARGET_CPU_ISADIR}/libexample.so
   282   OPENJDK_TARGET_CPU_ISADIR=""
   283   if test "x$OPENJDK_TARGET_OS" = xsolaris; then
   284     if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
   285       OPENJDK_TARGET_CPU_ISADIR="/amd64"
   286     elif test "x$OPENJDK_TARGET_CPU" = xsparcv9; then
   287       OPENJDK_TARGET_CPU_ISADIR="/sparcv9"
   288     fi
   289   fi
   290   AC_SUBST(OPENJDK_TARGET_CPU_ISADIR)
   292   # Setup OPENJDK_TARGET_CPU_OSARCH, which is used to set the os.arch Java system property
   293   OPENJDK_TARGET_CPU_OSARCH="$OPENJDK_TARGET_CPU"
   294   if test "x$OPENJDK_TARGET_OS" = xlinux && test "x$OPENJDK_TARGET_CPU" = xx86; then
   295     # On linux only, we replace x86 with i386.
   296     OPENJDK_TARGET_CPU_OSARCH="i386"
   297   elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then
   298     # On all platforms except macosx, we replace x86_64 with amd64.
   299     OPENJDK_TARGET_CPU_OSARCH="amd64"
   300   fi
   301   AC_SUBST(OPENJDK_TARGET_CPU_OSARCH)
   303   OPENJDK_TARGET_CPU_JLI="$OPENJDK_TARGET_CPU"
   304   if test "x$OPENJDK_TARGET_CPU" = xx86; then
   305     OPENJDK_TARGET_CPU_JLI="i386"
   306   elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then
   307     # On all platforms except macosx, we replace x86_64 with amd64.
   308     OPENJDK_TARGET_CPU_JLI="amd64"
   309   fi
   310   # Now setup the -D flags for building libjli.
   311   OPENJDK_TARGET_CPU_JLI_CFLAGS="-DLIBARCHNAME='\"$OPENJDK_TARGET_CPU_JLI\"'"
   312   if test "x$OPENJDK_TARGET_OS" = xsolaris; then
   313     if test "x$OPENJDK_TARGET_CPU_ARCH" = xsparc; then
   314       OPENJDK_TARGET_CPU_JLI_CFLAGS="$OPENJDK_TARGET_CPU_JLI_CFLAGS -DLIBARCH32NAME='\"sparc\"' -DLIBARCH64NAME='\"sparcv9\"'"
   315     elif test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then
   316       OPENJDK_TARGET_CPU_JLI_CFLAGS="$OPENJDK_TARGET_CPU_JLI_CFLAGS -DLIBARCH32NAME='\"i386\"' -DLIBARCH64NAME='\"amd64\"'"
   317     fi
   318   fi
   319   AC_SUBST(OPENJDK_TARGET_CPU_JLI_CFLAGS)
   321   # Setup OPENJDK_TARGET_OS_API_DIR, used in source paths.
   322   if test "x$OPENJDK_TARGET_OS_API" = xposix; then
   323     OPENJDK_TARGET_OS_API_DIR="solaris"
   324   fi
   325   if test "x$OPENJDK_TARGET_OS_API" = xwinapi; then
   326     OPENJDK_TARGET_OS_API_DIR="windows"
   327   fi
   328   AC_SUBST(OPENJDK_TARGET_OS_API_DIR)
   330   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
   331       OPENJDK_TARGET_OS_EXPORT_DIR=macosx
   332   else
   333       OPENJDK_TARGET_OS_EXPORT_DIR=${OPENJDK_TARGET_OS_API_DIR}
   334   fi
   335   AC_SUBST(OPENJDK_TARGET_OS_EXPORT_DIR)
   337   if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
   338     A_LP64="LP64:="
   339     # -D_LP64=1 is only set on linux and mac. Setting on windows causes diff in
   340     # unpack200.exe
   341     if test "x$OPENJDK_TARGET_OS" = xlinux || test "x$OPENJDK_TARGET_OS" = xmacosx; then
   342       ADD_LP64="-D_LP64=1"
   343     fi
   344   fi
   345   AC_SUBST(LP64,$A_LP64)
   347   if test "x$COMPILE_TYPE" = "xcross"; then
   348     # FIXME: ... or should this include reduced builds..?
   349     DEFINE_CROSS_COMPILE_ARCH="CROSS_COMPILE_ARCH:=$OPENJDK_TARGET_CPU_LEGACY"
   350   else
   351     DEFINE_CROSS_COMPILE_ARCH=""
   352   fi
   353   AC_SUBST(DEFINE_CROSS_COMPILE_ARCH)
   355   # ZERO_ARCHDEF is used to enable architecture-specific code
   356   case "${OPENJDK_TARGET_CPU}" in
   357     ppc*)    ZERO_ARCHDEF=PPC   ;;
   358     s390*)   ZERO_ARCHDEF=S390  ;;
   359     sparc*)  ZERO_ARCHDEF=SPARC ;;
   360     x86_64*) ZERO_ARCHDEF=AMD64 ;;
   361     x86)     ZERO_ARCHDEF=IA32  ;;
   362     *)      ZERO_ARCHDEF=$(echo "${OPENJDK_TARGET_CPU_LEGACY_LIB}" | tr a-z A-Z)
   363   esac
   364   AC_SUBST(ZERO_ARCHDEF)
   365 ])
   367 AC_DEFUN([PLATFORM_SET_RELEASE_FILE_OS_VALUES],
   368 [
   369   if test "x$OPENJDK_TARGET_OS" = "xsolaris"; then
   370     REQUIRED_OS_NAME=SunOS
   371     REQUIRED_OS_VERSION=5.10
   372   fi
   373   if test "x$OPENJDK_TARGET_OS" = "xlinux"; then
   374     REQUIRED_OS_NAME=Linux
   375     REQUIRED_OS_VERSION=2.6
   376   fi
   377   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
   378     REQUIRED_OS_NAME=Windows
   379     if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then
   380       REQUIRED_OS_VERSION=5.2
   381     else
   382       REQUIRED_OS_VERSION=5.1
   383     fi
   384   fi
   385   if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
   386     REQUIRED_OS_NAME=Darwin
   387     REQUIRED_OS_VERSION=11.2
   388   fi
   390   AC_SUBST(REQUIRED_OS_NAME)
   391   AC_SUBST(REQUIRED_OS_VERSION)
   392 ])
   394 #%%% Build and target systems %%%
   395 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_AND_TARGET],
   396 [
   397   # Figure out the build and target systems. # Note that in autoconf terminology, "build" is obvious, but "target"
   398   # is confusing; it assumes you are cross-compiling a cross-compiler (!)  and "target" is thus the target of the
   399   # product you're building. The target of this build is called "host". Since this is confusing to most people, we
   400   # have not adopted that system, but use "target" as the platform we are building for. In some places though we need
   401   # to use the configure naming style.
   402   AC_CANONICAL_BUILD
   403   AC_CANONICAL_HOST
   404   AC_CANONICAL_TARGET
   406   PLATFORM_EXTRACT_TARGET_AND_BUILD
   407   PLATFORM_SETUP_TARGET_CPU_BITS
   408   PLATFORM_SET_RELEASE_FILE_OS_VALUES
   409   PLATFORM_SETUP_LEGACY_VARS
   410 ])
   412 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_OS_VERSION],
   413 [
   414   ###############################################################################
   416   # Note that this is the build platform OS version!
   418   OS_VERSION="`uname -r | ${SED} 's!\.! !g' | ${SED} 's!-! !g'`"
   419   OS_VERSION_MAJOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 1 -d ' '`"
   420   OS_VERSION_MINOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 2 -d ' '`"
   421   OS_VERSION_MICRO="`${ECHO} ${OS_VERSION} | ${CUT} -f 3 -d ' '`"
   422   AC_SUBST(OS_VERSION_MAJOR)
   423   AC_SUBST(OS_VERSION_MINOR)
   424   AC_SUBST(OS_VERSION_MICRO)
   425 ])
   427 # Support macro for PLATFORM_SETUP_OPENJDK_TARGET_BITS.
   428 # Add -mX to various FLAGS variables.
   429 AC_DEFUN([PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS],
   430 [
   431   # When we add flags to the "official" CFLAGS etc, we need to
   432   # keep track of these additions in ADDED_CFLAGS etc. These
   433   # will later be checked to make sure only controlled additions
   434   # have been made to CFLAGS etc.
   435   ADDED_CFLAGS=" -m${OPENJDK_TARGET_CPU_BITS}"
   436   ADDED_CXXFLAGS=" -m${OPENJDK_TARGET_CPU_BITS}"
   437   ADDED_LDFLAGS=" -m${OPENJDK_TARGET_CPU_BITS}"
   439   CFLAGS="${CFLAGS}${ADDED_CFLAGS}"
   440   CXXFLAGS="${CXXFLAGS}${ADDED_CXXFLAGS}"
   441   LDFLAGS="${LDFLAGS}${ADDED_LDFLAGS}"
   443   CFLAGS_JDK="${CFLAGS_JDK}${ADDED_CFLAGS}"
   444   CXXFLAGS_JDK="${CXXFLAGS_JDK}${ADDED_CXXFLAGS}"
   445   LDFLAGS_JDK="${LDFLAGS_JDK}${ADDED_LDFLAGS}"
   446 ])
   448 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_BITS],
   449 [
   450   ###############################################################################
   451   #
   452   # Now we check if libjvm.so will use 32 or 64 bit pointers for the C/C++ code.
   453   # (The JVM can use 32 or 64 bit Java pointers but that decision
   454   # is made at runtime.)
   455   #
   457   if test "x$OPENJDK_TARGET_OS" = xsolaris; then
   458     # Always specify -m flags on Solaris
   459     PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS
   460   elif test "x$COMPILE_TYPE" = xreduced; then
   461     if test "x$OPENJDK_TARGET_OS" != xwindows; then
   462       # Specify -m if running reduced on other Posix platforms
   463       PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS
   464     fi
   465   fi
   467   # Make compilation sanity check
   468   AC_CHECK_HEADERS([stdio.h], , [
   469     AC_MSG_NOTICE([Failed to compile stdio.h. This likely implies missing compile dependencies.])
   470     if test "x$COMPILE_TYPE" = xreduced; then
   471       AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed.])
   472     elif test "x$COMPILE_TYPE" = xcross; then
   473       AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.])
   474     fi
   475     AC_MSG_ERROR([Cannot continue.])
   476   ])
   478   AC_CHECK_SIZEOF([int *], [1111])
   480   if test "x$SIZEOF_INT_P" != "x$ac_cv_sizeof_int_p"; then
   481     # Workaround autoconf bug, see http://lists.gnu.org/archive/html/autoconf/2010-07/msg00004.html
   482     SIZEOF_INT_P="$ac_cv_sizeof_int_p"
   483   fi
   485   if test "x$SIZEOF_INT_P" = x; then
   486     # The test failed, lets stick to the assumed value.
   487     AC_MSG_WARN([The number of bits in the target could not be determined, using $OPENJDK_TARGET_CPU_BITS.])
   488   else
   489     TESTED_TARGET_CPU_BITS=`expr 8 \* $SIZEOF_INT_P`
   491     if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then
   492       AC_MSG_ERROR([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS)])
   493     fi
   494   fi
   496   AC_MSG_CHECKING([for target address size])
   497   AC_MSG_RESULT([$OPENJDK_TARGET_CPU_BITS bits])
   498 ])
   500 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_ENDIANNESS],
   501 [
   502   ###############################################################################
   503   #
   504   # Is the target little of big endian?
   505   #
   506   AC_C_BIGENDIAN([ENDIAN="big"],[ENDIAN="little"],[ENDIAN="unknown"],[ENDIAN="universal_endianness"])
   508   if test "x$ENDIAN" = xuniversal_endianness; then
   509     AC_MSG_ERROR([Building with both big and little endianness is not supported])
   510   fi
   511   if test "x$ENDIAN" != "x$OPENJDK_TARGET_CPU_ENDIAN"; then
   512     AC_MSG_ERROR([The tested endian in the target ($ENDIAN) differs from the endian expected to be found in the target ($OPENJDK_TARGET_CPU_ENDIAN)])
   513   fi
   514 ])

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