jdk8-mips64-public: common/autoconf/platform.m4@a8da94d779b3 (annotated)

common/autoconf/platform.m4@a8da94d779b3 (annotated)

common/autoconf/platform.m4

Mon, 29 Jun 2020 21:30:12 +0100

author: andrew
date: Mon, 29 Jun 2020 21:30:12 +0100
changeset 2537: a8da94d779b3
parent 2325: a5b23c21a665
child 2384: b45bf475c2ca
permissions: -rw-r--r--

Merge

 #
 # Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License version 2 only, as
 # published by the Free Software Foundation.  Oracle designates this
 # particular file as subject to the "Classpath" exception as provided
 # by Oracle in the LICENSE file that accompanied this code.
 #
 # This code is distributed in the hope that it will be useful, but WITHOUT
 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 # version 2 for more details (a copy is included in the LICENSE file that
 # accompanied this code).
 #
 # You should have received a copy of the GNU General Public License version
 # 2 along with this work; if not, write to the Free Software Foundation,
 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 #
 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 # or visit www.oracle.com if you need additional information or have any
 # questions.
 #
 # Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
 # Converts autoconf style CPU name to OpenJDK style, into
 # VAR_CPU, VAR_CPU_ARCH, VAR_CPU_BITS and VAR_CPU_ENDIAN.
 AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_CPU],
 [
   # First argument is the cpu name from the trip/quad
   case "$1" in
     x86_64)
       VAR_CPU=x86_64
       VAR_CPU_ARCH=x86
       VAR_CPU_BITS=64
       VAR_CPU_ENDIAN=little
       ;;
     i?86)
       VAR_CPU=x86
       VAR_CPU_ARCH=x86
       VAR_CPU_BITS=32
       VAR_CPU_ENDIAN=little
       ;;
     arm*)
       VAR_CPU=arm
       VAR_CPU_ARCH=arm
       VAR_CPU_BITS=32
       VAR_CPU_ENDIAN=little
       ;;
     aarch64)
       VAR_CPU=aarch64
       VAR_CPU_ARCH=aarch64
       VAR_CPU_BITS=64
       VAR_CPU_ENDIAN=little
       ;;
     powerpc)
       VAR_CPU=ppc
       VAR_CPU_ARCH=ppc
       VAR_CPU_BITS=32
       VAR_CPU_ENDIAN=big
       ;;
     powerpc64)
       VAR_CPU=ppc64
       VAR_CPU_ARCH=ppc
       VAR_CPU_BITS=64
       VAR_CPU_ENDIAN=big
       ;;
     powerpc64le)
       VAR_CPU=ppc64le
       VAR_CPU_ARCH=ppc
       VAR_CPU_BITS=64
       VAR_CPU_ENDIAN=little
       ;;
     s390)
       VAR_CPU=s390
       VAR_CPU_ARCH=s390
       VAR_CPU_BITS=32
       VAR_CPU_ENDIAN=big
       ;;
     s390x)
       VAR_CPU=s390x
       VAR_CPU_ARCH=s390
       VAR_CPU_BITS=64
       VAR_CPU_ENDIAN=big
       ;;
     sparc)
       VAR_CPU=sparc
       VAR_CPU_ARCH=sparc
       VAR_CPU_BITS=32
       VAR_CPU_ENDIAN=big
       ;;
     sparcv9|sparc64)
       VAR_CPU=sparcv9
       VAR_CPU_ARCH=sparc
       VAR_CPU_BITS=64
       VAR_CPU_ENDIAN=big
       ;;
     *)
       AC_MSG_ERROR([unsupported cpu $1])
       ;;
   esac
 ])
 # Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
 # Converts autoconf style OS name to OpenJDK style, into
 # VAR_OS and VAR_OS_API.
 AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_OS],
 [
   case "$1" in
     *linux*)
       VAR_OS=linux
       VAR_OS_API=posix
       VAR_OS_ENV=linux
       ;;
     *solaris*)
       VAR_OS=solaris
       VAR_OS_API=posix
       VAR_OS_ENV=solaris
       ;;
     *darwin*)
       VAR_OS=macosx
       VAR_OS_API=posix
       VAR_OS_ENV=macosx
       ;;
     *bsd*)
       VAR_OS=bsd
       VAR_OS_API=posix
       VAR_OS_ENV=bsd
       ;;
     *cygwin*)
       VAR_OS=windows
       VAR_OS_API=winapi
       VAR_OS_ENV=windows.cygwin
       ;;
     *mingw*)
       VAR_OS=windows
       VAR_OS_API=winapi
       VAR_OS_ENV=windows.msys
       ;;
     *aix*)
       VAR_OS=aix
       VAR_OS_API=posix
       VAR_OS_ENV=aix
       ;;
     *)
       AC_MSG_ERROR([unsupported operating system $1])
       ;;
   esac
 ])
 # Expects $host_os $host_cpu $build_os and $build_cpu
 # and $with_target_bits to have been setup!
 #
 # Translate the standard triplet(quadruplet) definition
 # of the target/build system into OPENJDK_TARGET_OS, OPENJDK_TARGET_CPU,
 # OPENJDK_BUILD_OS, etc.
 AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
 [
   # Copy the autoconf trip/quadruplet verbatim to OPENJDK_TARGET_AUTOCONF_NAME
   # (from the autoconf "host") and OPENJDK_BUILD_AUTOCONF_NAME
   # Note that we might later on rewrite e.g. OPENJDK_TARGET_CPU due to reduced build,
   # but this will not change the value of OPENJDK_TARGET_AUTOCONF_NAME.
   OPENJDK_TARGET_AUTOCONF_NAME="$host"
   OPENJDK_BUILD_AUTOCONF_NAME="$build"
   AC_SUBST(OPENJDK_TARGET_AUTOCONF_NAME)
   AC_SUBST(OPENJDK_BUILD_AUTOCONF_NAME)
   # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
   PLATFORM_EXTRACT_VARS_FROM_OS($build_os)
   PLATFORM_EXTRACT_VARS_FROM_CPU($build_cpu)
   # ..and setup our own variables. (Do this explicitely to facilitate searching)
   OPENJDK_BUILD_OS="$VAR_OS"
   OPENJDK_BUILD_OS_API="$VAR_OS_API"
   OPENJDK_BUILD_OS_ENV="$VAR_OS_ENV"
   OPENJDK_BUILD_CPU="$VAR_CPU"
   OPENJDK_BUILD_CPU_ARCH="$VAR_CPU_ARCH"
   OPENJDK_BUILD_CPU_BITS="$VAR_CPU_BITS"
   OPENJDK_BUILD_CPU_ENDIAN="$VAR_CPU_ENDIAN"
   AC_SUBST(OPENJDK_BUILD_OS)
   AC_SUBST(OPENJDK_BUILD_OS_API)
   AC_SUBST(OPENJDK_BUILD_OS_ENV)
   AC_SUBST(OPENJDK_BUILD_CPU)
   AC_SUBST(OPENJDK_BUILD_CPU_ARCH)
   AC_SUBST(OPENJDK_BUILD_CPU_BITS)
   AC_SUBST(OPENJDK_BUILD_CPU_ENDIAN)
   AC_MSG_CHECKING([openjdk-build os-cpu])
   AC_MSG_RESULT([$OPENJDK_BUILD_OS-$OPENJDK_BUILD_CPU])
   # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
   PLATFORM_EXTRACT_VARS_FROM_OS($host_os)
   PLATFORM_EXTRACT_VARS_FROM_CPU($host_cpu)
   # ... and setup our own variables. (Do this explicitely to facilitate searching)
   OPENJDK_TARGET_OS="$VAR_OS"
   OPENJDK_TARGET_OS_API="$VAR_OS_API"
   OPENJDK_TARGET_OS_ENV="$VAR_OS_ENV"
   OPENJDK_TARGET_CPU="$VAR_CPU"
   OPENJDK_TARGET_CPU_ARCH="$VAR_CPU_ARCH"
   OPENJDK_TARGET_CPU_BITS="$VAR_CPU_BITS"
   OPENJDK_TARGET_CPU_ENDIAN="$VAR_CPU_ENDIAN"
   AC_SUBST(OPENJDK_TARGET_OS)
   AC_SUBST(OPENJDK_TARGET_OS_API)
   AC_SUBST(OPENJDK_TARGET_OS_ENV)
   AC_SUBST(OPENJDK_TARGET_CPU)
   AC_SUBST(OPENJDK_TARGET_CPU_ARCH)
   AC_SUBST(OPENJDK_TARGET_CPU_BITS)
   AC_SUBST(OPENJDK_TARGET_CPU_ENDIAN)
   AC_MSG_CHECKING([openjdk-target os-cpu])
   AC_MSG_RESULT([$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
 ])
 # Check if a reduced build (32-bit on 64-bit platforms) is requested, and modify behaviour
 # accordingly. Must be done after setting up build and target system, but before
 # doing anything else with these values.
 AC_DEFUN([PLATFORM_SETUP_TARGET_CPU_BITS],
 [
   AC_ARG_WITH(target-bits, [AS_HELP_STRING([--with-target-bits],
        [build 32-bit or 64-bit binaries (for platforms that support it), e.g. --with-target-bits=32 @<:@guessed@:>@])])
   # We have three types of compiles:
   # native  == normal compilation, target system == build system
   # cross   == traditional cross compilation, target system != build system; special toolchain needed
   # reduced == using native compilers, but with special flags (e.g. -m32) to produce 32-bit builds on 64-bit machines
   #
   if test "x$OPENJDK_BUILD_AUTOCONF_NAME" != "x$OPENJDK_TARGET_AUTOCONF_NAME"; then
     # We're doing a proper cross-compilation
     COMPILE_TYPE="cross"
   else
     COMPILE_TYPE="native"
   fi
   if test "x$with_target_bits" != x; then
     if test "x$COMPILE_TYPE" = "xcross"; then
       AC_MSG_ERROR([It is not possible to combine --with-target-bits=X and proper cross-compilation. Choose either.])
     fi
     if test "x$with_target_bits" = x32 && test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
       # A reduced build is requested
       COMPILE_TYPE="reduced"
       OPENJDK_TARGET_CPU_BITS=32
       if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
         OPENJDK_TARGET_CPU=x86
       elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
         OPENJDK_TARGET_CPU=sparc
       else
         AC_MSG_ERROR([Reduced build (--with-target-bits=32) is only supported on x86_64 and sparcv9])
       fi
     elif test "x$with_target_bits" = x64 && test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
       AC_MSG_ERROR([It is not possible to use --with-target-bits=64 on a 32 bit system. Use proper cross-compilation instead.])
     elif test "x$with_target_bits" = "x$OPENJDK_TARGET_CPU_BITS"; then
       AC_MSG_NOTICE([--with-target-bits are set to build platform address size; argument has no meaning])
     else
       AC_MSG_ERROR([--with-target-bits can only be 32 or 64, you specified $with_target_bits!])
     fi
   fi
   AC_SUBST(COMPILE_TYPE)
   AC_MSG_CHECKING([compilation type])
   AC_MSG_RESULT([$COMPILE_TYPE])
 ])
 # Setup the legacy variables, for controlling the old makefiles.
 #
 AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS],
 [
   # Also store the legacy naming of the cpu.
   # Ie i586 and amd64 instead of x86 and x86_64
   OPENJDK_TARGET_CPU_LEGACY="$OPENJDK_TARGET_CPU"
   if test "x$OPENJDK_TARGET_CPU" = xx86; then
     OPENJDK_TARGET_CPU_LEGACY="i586"
   elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then
     # On all platforms except MacOSX replace x86_64 with amd64.
     OPENJDK_TARGET_CPU_LEGACY="amd64"
   fi
   AC_SUBST(OPENJDK_TARGET_CPU_LEGACY)
   # And the second legacy naming of the cpu.
   # Ie i386 and amd64 instead of x86 and x86_64.
   OPENJDK_TARGET_CPU_LEGACY_LIB="$OPENJDK_TARGET_CPU"
   if test "x$OPENJDK_TARGET_CPU" = xx86; then
     OPENJDK_TARGET_CPU_LEGACY_LIB="i386"
   elif test "x$OPENJDK_TARGET_CPU" = xx86_64; then
     OPENJDK_TARGET_CPU_LEGACY_LIB="amd64"
   fi
   AC_SUBST(OPENJDK_TARGET_CPU_LEGACY_LIB)
   # This is the name of the cpu (but using i386 and amd64 instead of
   # x86 and x86_64, respectively), preceeded by a /, to be used when
   # locating libraries. On macosx, it's empty, though.
   OPENJDK_TARGET_CPU_LIBDIR="/$OPENJDK_TARGET_CPU_LEGACY_LIB"
   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
     OPENJDK_TARGET_CPU_LIBDIR=""
   fi
   AC_SUBST(OPENJDK_TARGET_CPU_LIBDIR)
   # OPENJDK_TARGET_CPU_ISADIR is normally empty. On 64-bit Solaris systems, it is set to
   # /amd64 or /sparcv9. This string is appended to some library paths, like this:
   # /usr/lib${OPENJDK_TARGET_CPU_ISADIR}/libexample.so
   OPENJDK_TARGET_CPU_ISADIR=""
   if test "x$OPENJDK_TARGET_OS" = xsolaris; then
     if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
       OPENJDK_TARGET_CPU_ISADIR="/amd64"
     elif test "x$OPENJDK_TARGET_CPU" = xsparcv9; then
       OPENJDK_TARGET_CPU_ISADIR="/sparcv9"
     fi
   fi
   AC_SUBST(OPENJDK_TARGET_CPU_ISADIR)
   # Setup OPENJDK_TARGET_CPU_OSARCH, which is used to set the os.arch Java system property
   OPENJDK_TARGET_CPU_OSARCH="$OPENJDK_TARGET_CPU"
   if test "x$OPENJDK_TARGET_OS" = xlinux && test "x$OPENJDK_TARGET_CPU" = xx86; then
     # On linux only, we replace x86 with i386.
     OPENJDK_TARGET_CPU_OSARCH="i386"
   elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then
     # On all platforms except macosx, we replace x86_64 with amd64.
     OPENJDK_TARGET_CPU_OSARCH="amd64"
   fi
   AC_SUBST(OPENJDK_TARGET_CPU_OSARCH)
   OPENJDK_TARGET_CPU_JLI="$OPENJDK_TARGET_CPU"
   if test "x$OPENJDK_TARGET_CPU" = xx86; then
     OPENJDK_TARGET_CPU_JLI="i386"
   elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then
     # On all platforms except macosx, we replace x86_64 with amd64.
     OPENJDK_TARGET_CPU_JLI="amd64"
   fi
   # Now setup the -D flags for building libjli.
   OPENJDK_TARGET_CPU_JLI_CFLAGS="-DLIBARCHNAME='\"$OPENJDK_TARGET_CPU_JLI\"'"
   if test "x$OPENJDK_TARGET_OS" = xsolaris; then
     if test "x$OPENJDK_TARGET_CPU_ARCH" = xsparc; then
       OPENJDK_TARGET_CPU_JLI_CFLAGS="$OPENJDK_TARGET_CPU_JLI_CFLAGS -DLIBARCH32NAME='\"sparc\"' -DLIBARCH64NAME='\"sparcv9\"'"
     elif test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then
       OPENJDK_TARGET_CPU_JLI_CFLAGS="$OPENJDK_TARGET_CPU_JLI_CFLAGS -DLIBARCH32NAME='\"i386\"' -DLIBARCH64NAME='\"amd64\"'"
     fi
   fi
   AC_SUBST(OPENJDK_TARGET_CPU_JLI_CFLAGS)
   # Setup OPENJDK_TARGET_OS_API_DIR, used in source paths.
   if test "x$OPENJDK_TARGET_OS_API" = xposix; then
     OPENJDK_TARGET_OS_API_DIR="solaris"
   fi
   if test "x$OPENJDK_TARGET_OS_API" = xwinapi; then
     OPENJDK_TARGET_OS_API_DIR="windows"
   fi
   AC_SUBST(OPENJDK_TARGET_OS_API_DIR)
   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
       OPENJDK_TARGET_OS_EXPORT_DIR=macosx
   else
       OPENJDK_TARGET_OS_EXPORT_DIR=${OPENJDK_TARGET_OS_API_DIR}
   fi
   AC_SUBST(OPENJDK_TARGET_OS_EXPORT_DIR)
   if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
     A_LP64="LP64:="
     # -D_LP64=1 is only set on linux and mac. Setting on windows causes diff in
     # unpack200.exe
     if test "x$OPENJDK_TARGET_OS" = xlinux || test "x$OPENJDK_TARGET_OS" = xmacosx; then
       ADD_LP64="-D_LP64=1"
     fi
   fi
   AC_SUBST(LP64,$A_LP64)
   if test "x$COMPILE_TYPE" = "xcross"; then
     # FIXME: ... or should this include reduced builds..?
     DEFINE_CROSS_COMPILE_ARCH="CROSS_COMPILE_ARCH:=$OPENJDK_TARGET_CPU_LEGACY"
   else
     DEFINE_CROSS_COMPILE_ARCH=""
   fi
   AC_SUBST(DEFINE_CROSS_COMPILE_ARCH)
   # ZERO_ARCHDEF is used to enable architecture-specific code
   case "${OPENJDK_TARGET_CPU}" in
     ppc)     ZERO_ARCHDEF=PPC32 ;;
     ppc64)   ZERO_ARCHDEF=PPC64 ;;
     s390*)   ZERO_ARCHDEF=S390  ;;
     sparc*)  ZERO_ARCHDEF=SPARC ;;
     x86_64*) ZERO_ARCHDEF=AMD64 ;;
     x86)     ZERO_ARCHDEF=IA32  ;;
     *)      ZERO_ARCHDEF=$(echo "${OPENJDK_TARGET_CPU_LEGACY_LIB}" | tr a-z A-Z)
   esac
   AC_SUBST(ZERO_ARCHDEF)
 ])
 AC_DEFUN([PLATFORM_SET_RELEASE_FILE_OS_VALUES],
 [
   if test "x$OPENJDK_TARGET_OS" = "xsolaris"; then
     REQUIRED_OS_NAME=SunOS
     REQUIRED_OS_VERSION=5.10
   fi
   if test "x$OPENJDK_TARGET_OS" = "xlinux"; then
     REQUIRED_OS_NAME=Linux
     REQUIRED_OS_VERSION=2.6
   fi
   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
     REQUIRED_OS_NAME=Windows
     if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then
       REQUIRED_OS_VERSION=5.2
     else
       REQUIRED_OS_VERSION=5.1
     fi
   fi
   if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
     REQUIRED_OS_NAME=Darwin
     REQUIRED_OS_VERSION=11.2
   fi
   AC_SUBST(REQUIRED_OS_NAME)
   AC_SUBST(REQUIRED_OS_VERSION)
 ])
 #%%% Build and target systems %%%
 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_AND_TARGET],
 [
   # Figure out the build and target systems. # Note that in autoconf terminology, "build" is obvious, but "target"
   # is confusing; it assumes you are cross-compiling a cross-compiler (!)  and "target" is thus the target of the
   # product you're building. The target of this build is called "host". Since this is confusing to most people, we
   # have not adopted that system, but use "target" as the platform we are building for. In some places though we need
   # to use the configure naming style.
   AC_CANONICAL_BUILD
   AC_CANONICAL_HOST
   AC_CANONICAL_TARGET
   PLATFORM_EXTRACT_TARGET_AND_BUILD
   PLATFORM_SETUP_TARGET_CPU_BITS
   PLATFORM_SET_RELEASE_FILE_OS_VALUES
   PLATFORM_SETUP_LEGACY_VARS
 ])
 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_OS_VERSION],
 [
   ###############################################################################
   # Note that this is the build platform OS version!
   OS_VERSION="`uname -r | ${SED} 's!\.! !g' | ${SED} 's!-! !g'`"
   OS_VERSION_MAJOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 1 -d ' '`"
   OS_VERSION_MINOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 2 -d ' '`"
   OS_VERSION_MICRO="`${ECHO} ${OS_VERSION} | ${CUT} -f 3 -d ' '`"
   AC_SUBST(OS_VERSION_MAJOR)
   AC_SUBST(OS_VERSION_MINOR)
   AC_SUBST(OS_VERSION_MICRO)
 ])
 # Support macro for PLATFORM_SETUP_OPENJDK_TARGET_BITS.
 # Add -mX to various FLAGS variables.
 AC_DEFUN([PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS],
 [
   # When we add flags to the "official" CFLAGS etc, we need to
   # keep track of these additions in ADDED_CFLAGS etc. These
   # will later be checked to make sure only controlled additions
   # have been made to CFLAGS etc.
   ADDED_CFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
   ADDED_CXXFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
   ADDED_LDFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
   CFLAGS="${CFLAGS}${ADDED_CFLAGS}"
   CXXFLAGS="${CXXFLAGS}${ADDED_CXXFLAGS}"
   LDFLAGS="${LDFLAGS}${ADDED_LDFLAGS}"
   CFLAGS_JDK="${CFLAGS_JDK}${ADDED_CFLAGS}"
   CXXFLAGS_JDK="${CXXFLAGS_JDK}${ADDED_CXXFLAGS}"
   LDFLAGS_JDK="${LDFLAGS_JDK}${ADDED_LDFLAGS}"
 ])
 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_BITS],
 [
   ###############################################################################
   #
   # Now we check if libjvm.so will use 32 or 64 bit pointers for the C/C++ code.
   # (The JVM can use 32 or 64 bit Java pointers but that decision
   # is made at runtime.)
   #
   if test "x$OPENJDK_TARGET_OS" = xsolaris || test "x$OPENJDK_TARGET_OS" = xaix; then
     # Always specify -m flag on Solaris
     # And -q on AIX because otherwise the compiler produces 32-bit objects by default
     PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS
   elif test "x$COMPILE_TYPE" = xreduced; then
     if test "x$OPENJDK_TARGET_OS" != xwindows; then
       # Specify -m if running reduced on other Posix platforms
       PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS
     fi
   fi
   # Make compilation sanity check
   AC_CHECK_HEADERS([stdio.h], , [
     AC_MSG_NOTICE([Failed to compile stdio.h. This likely implies missing compile dependencies.])
     if test "x$COMPILE_TYPE" = xreduced; then
       AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed.])
     elif test "x$COMPILE_TYPE" = xcross; then
       AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.])
     fi
     AC_MSG_ERROR([Cannot continue.])
   ])
   AC_CHECK_SIZEOF([int *], [1111])
   # AC_CHECK_SIZEOF defines 'ac_cv_sizeof_int_p' to hold the number of bytes used by an 'int*'
   if test "x$ac_cv_sizeof_int_p" = x; then
     # The test failed, lets stick to the assumed value.
     AC_MSG_WARN([The number of bits in the target could not be determined, using $OPENJDK_TARGET_CPU_BITS.])
   else
     TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p`
     if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then
       # This situation may happen on 64-bit platforms where the compiler by default only generates 32-bit objects
       # Let's try to implicitely set the compilers target architecture and retry the test
       AC_MSG_NOTICE([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS).])
       AC_MSG_NOTICE([I'll retry after setting the platforms compiler target bits flag to ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}])
       PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS
       # We have to unset 'ac_cv_sizeof_int_p' first, otherwise AC_CHECK_SIZEOF will use the previously cached value!
       unset ac_cv_sizeof_int_p
       # And we have to undef the definition of SIZEOF_INT_P in confdefs.h by the previous invocation of AC_CHECK_SIZEOF
       cat >>confdefs.h <<_ACEOF
 #undef SIZEOF_INT_P
 _ACEOF
       AC_CHECK_SIZEOF([int *], [1111])
       TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p`
       if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then
         AC_MSG_ERROR([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS)])
       fi
     fi
   fi
   AC_MSG_CHECKING([for target address size])
   AC_MSG_RESULT([$OPENJDK_TARGET_CPU_BITS bits])
 ])
 AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_ENDIANNESS],
 [
   ###############################################################################
   #
   # Is the target little of big endian?
   #
   AC_C_BIGENDIAN([ENDIAN="big"],[ENDIAN="little"],[ENDIAN="unknown"],[ENDIAN="universal_endianness"])
   if test "x$ENDIAN" = xuniversal_endianness; then
     AC_MSG_ERROR([Building with both big and little endianness is not supported])
   fi
   if test "x$ENDIAN" != "x$OPENJDK_TARGET_CPU_ENDIAN"; then
     AC_MSG_ERROR([The tested endian in the target ($ENDIAN) differs from the endian expected to be found in the target ($OPENJDK_TARGET_CPU_ENDIAN)])
   fi
 ])

Mercurial > jdk8-mips64-public / annotate

common/autoconf/platform.m4@a8da94d779b3 (annotated)

common/autoconf/platform.m4