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platform.m4 
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#
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# Copyright (c) 2011, 2023, Oracle and/or its affiliates. All rights reserved.
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# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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#
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# This code is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License version 2 only, as
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# published by the Free Software Foundation.  Oracle designates this
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# particular file as subject to the "Classpath" exception as provided
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# by Oracle in the LICENSE file that accompanied this code.
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#
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# This code is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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# version 2 for more details (a copy is included in the LICENSE file that
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# accompanied this code).
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#
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# You should have received a copy of the GNU General Public License version
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# 2 along with this work; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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# or visit www.oracle.com if you need additional information or have any
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# questions.
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#
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# Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
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# Converts autoconf style CPU name to OpenJDK style, into
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# VAR_CPU, VAR_CPU_ARCH, VAR_CPU_BITS and VAR_CPU_ENDIAN.
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AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_CPU],
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[
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  # First argument is the cpu name from the trip/quad
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  case "$1" in
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    x86_64*x32)
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      VAR_CPU=x32
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      VAR_CPU_ARCH=x86
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      VAR_CPU_BITS=32
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      VAR_CPU_ENDIAN=little
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      ;;
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    x86_64)
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      VAR_CPU=x86_64
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      VAR_CPU_ARCH=x86
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      VAR_CPU_BITS=64
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      VAR_CPU_ENDIAN=little
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      ;;
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    i?86)
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      VAR_CPU=x86
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      VAR_CPU_ARCH=x86
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      VAR_CPU_BITS=32
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      VAR_CPU_ENDIAN=little
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      ;;
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    alpha*)
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      VAR_CPU=alpha
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      VAR_CPU_ARCH=alpha
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      VAR_CPU_BITS=64
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      VAR_CPU_ENDIAN=little
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      ;;
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    arm*)
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      VAR_CPU=arm
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      VAR_CPU_ARCH=arm
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      VAR_CPU_BITS=32
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      VAR_CPU_ENDIAN=little
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      ;;
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    aarch64)
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      VAR_CPU=aarch64
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      VAR_CPU_ARCH=aarch64
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      VAR_CPU_BITS=64
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      VAR_CPU_ENDIAN=little
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      ;;
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    ia64)
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      VAR_CPU=ia64
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      VAR_CPU_ARCH=ia64
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      VAR_CPU_BITS=64
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      VAR_CPU_ENDIAN=little
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      ;;
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    loongarch64)
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      VAR_CPU=loongarch64
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      VAR_CPU_ARCH=loongarch
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      VAR_CPU_BITS=64
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      VAR_CPU_ENDIAN=little
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      ;;
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    m68k)
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      VAR_CPU=m68k
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      VAR_CPU_ARCH=m68k
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      VAR_CPU_BITS=32
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      VAR_CPU_ENDIAN=big
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      ;;
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    mips)
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      VAR_CPU=mips
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      VAR_CPU_ARCH=mips
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      VAR_CPU_BITS=32
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      VAR_CPU_ENDIAN=big
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      ;;
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    mipsel)
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      VAR_CPU=mipsel
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      VAR_CPU_ARCH=mipsel
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      VAR_CPU_BITS=32
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      VAR_CPU_ENDIAN=little
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      ;;
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    mips64)
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      VAR_CPU=mips64
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      VAR_CPU_ARCH=mips64
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      VAR_CPU_BITS=64
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      VAR_CPU_ENDIAN=big
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      ;;
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    mips64el)
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      VAR_CPU=mips64el
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      VAR_CPU_ARCH=mips64el
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      VAR_CPU_BITS=64
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      VAR_CPU_ENDIAN=little
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      ;;
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    powerpc)
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      VAR_CPU=ppc
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      VAR_CPU_ARCH=ppc
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      VAR_CPU_BITS=32
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      VAR_CPU_ENDIAN=big
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      ;;
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    powerpc64)
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      VAR_CPU=ppc64
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      VAR_CPU_ARCH=ppc
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      VAR_CPU_BITS=64
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      VAR_CPU_ENDIAN=big
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      ;;
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    powerpc64le)
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      VAR_CPU=ppc64le
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      VAR_CPU_ARCH=ppc
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      VAR_CPU_BITS=64
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      VAR_CPU_ENDIAN=little
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      ;;
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    riscv32)
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      VAR_CPU=riscv32
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      VAR_CPU_ARCH=riscv
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      VAR_CPU_BITS=32
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      VAR_CPU_ENDIAN=little
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      ;;
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    riscv64)
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      VAR_CPU=riscv64
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      VAR_CPU_ARCH=riscv
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      VAR_CPU_BITS=64
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      VAR_CPU_ENDIAN=little
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      ;;
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    s390)
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      VAR_CPU=s390
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      VAR_CPU_ARCH=s390
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      VAR_CPU_BITS=32
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      VAR_CPU_ENDIAN=big
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      ;;
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    s390x)
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      VAR_CPU=s390x
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      VAR_CPU_ARCH=s390
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      VAR_CPU_BITS=64
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      VAR_CPU_ENDIAN=big
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      ;;
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    sh*eb)
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      VAR_CPU=sh
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      VAR_CPU_ARCH=sh
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      VAR_CPU_BITS=32
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      VAR_CPU_ENDIAN=big
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      ;;
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    sh*)
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      VAR_CPU=sh
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      VAR_CPU_ARCH=sh
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      VAR_CPU_BITS=32
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      VAR_CPU_ENDIAN=little
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      ;;
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    sparc)
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      VAR_CPU=sparc
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      VAR_CPU_ARCH=sparc
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      VAR_CPU_BITS=32
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      VAR_CPU_ENDIAN=big
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      ;;
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    sparcv9|sparc64)
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      VAR_CPU=sparcv9
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      VAR_CPU_ARCH=sparc
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      VAR_CPU_BITS=64
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      VAR_CPU_ENDIAN=big
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      ;;
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    sparc)
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      VAR_CPU=sparc
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      VAR_CPU_ARCH=sparc
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      VAR_CPU_BITS=32
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      VAR_CPU_ENDIAN=big
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      ;;
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    sparcv9|sparc64)
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      VAR_CPU=sparcv9
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      VAR_CPU_ARCH=sparc
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      VAR_CPU_BITS=64
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      VAR_CPU_ENDIAN=big
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      ;;
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    *)
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      AC_MSG_ERROR([unsupported cpu $1])
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      ;;
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  esac
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])
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# Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
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# Converts autoconf style OS name to OpenJDK style, into
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# VAR_OS, VAR_OS_TYPE and VAR_OS_ENV.
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AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_OS],
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[
200
  case "$1" in
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    *linux*)
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      VAR_OS=linux
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      VAR_OS_TYPE=unix
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      ;;
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    *darwin*)
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      VAR_OS=macosx
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      VAR_OS_TYPE=unix
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      ;;
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    *bsd*)
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      VAR_OS=bsd
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      VAR_OS_TYPE=unix
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      ;;
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    *cygwin*)
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      VAR_OS=windows
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      VAR_OS_ENV=windows.cygwin
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      ;;
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    *wsl*)
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      VAR_OS=windows
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      VAR_OS_ENV=windows.wsl
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      ;;
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    *msys* | *mingw*)
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      VAR_OS=windows
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      VAR_OS_ENV=windows.msys2
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      ;;
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    *aix*)
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      VAR_OS=aix
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      VAR_OS_TYPE=unix
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      ;;
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    *)
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      AC_MSG_ERROR([unsupported operating system $1])
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      ;;
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  esac
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])
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# Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
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# Converts autoconf style OS name to OpenJDK style, into
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# VAR_LIBC.
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AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_LIBC],
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[
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  case "$1" in
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    *linux*-musl)
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      VAR_LIBC=musl
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      ;;
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    *linux*-gnu)
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      VAR_LIBC=gnu
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      ;;
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    *)
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      VAR_LIBC=default
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      ;;
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  esac
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])
252

253
# Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
254
# Converts autoconf style OS name to OpenJDK style, into
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# VAR_ABI.
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AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_ABI],
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[
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  case "$1" in
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    *linux*-musl)
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      VAR_ABI=musl
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      ;;
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    *linux*-gnu)
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      VAR_ABI=gnu
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      ;;
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    *linux*-gnueabi)
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      VAR_ABI=gnueabi
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      ;;
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    *linux*-gnueabihf)
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      VAR_ABI=gnueabihf
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      ;;
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    *linux*-gnuabi64)
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      VAR_ABI=gnuabi64
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      ;;
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    *)
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      VAR_ABI=default
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      ;;
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  esac
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])
279

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# Expects $host_os $host_cpu $build_os and $build_cpu
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# and $with_target_bits to have been setup!
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#
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# Translate the standard triplet(quadruplet) definition
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# of the target/build system into OPENJDK_TARGET_OS, OPENJDK_TARGET_CPU,
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# OPENJDK_BUILD_OS, etc.
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AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
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[
288
  # Copy the autoconf trip/quadruplet verbatim to OPENJDK_TARGET_AUTOCONF_NAME
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  # (from the autoconf "host") and OPENJDK_BUILD_AUTOCONF_NAME
290
  # Note that we might later on rewrite e.g. OPENJDK_TARGET_CPU due to reduced build,
291
  # but this will not change the value of OPENJDK_TARGET_AUTOCONF_NAME.
292
  OPENJDK_TARGET_AUTOCONF_NAME="$host"
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  OPENJDK_BUILD_AUTOCONF_NAME="$build"
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  AC_SUBST(OPENJDK_TARGET_AUTOCONF_NAME)
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  AC_SUBST(OPENJDK_BUILD_AUTOCONF_NAME)
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297
  # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU/LIBC variables.
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  PLATFORM_EXTRACT_VARS_FROM_OS($build_os)
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  PLATFORM_EXTRACT_VARS_FROM_CPU($build_cpu)
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  PLATFORM_EXTRACT_VARS_FROM_LIBC($build_os)
301
  PLATFORM_EXTRACT_VARS_FROM_ABI($build_os)
302
  # ..and setup our own variables. (Do this explicitly to facilitate searching)
303
  OPENJDK_BUILD_OS="$VAR_OS"
304
  if test "x$VAR_OS_TYPE" != x; then
305
    OPENJDK_BUILD_OS_TYPE="$VAR_OS_TYPE"
306
  else
307
    OPENJDK_BUILD_OS_TYPE="$VAR_OS"
308
  fi
309
  if test "x$VAR_OS_ENV" != x; then
310
    OPENJDK_BUILD_OS_ENV="$VAR_OS_ENV"
311
  else
312
    OPENJDK_BUILD_OS_ENV="$VAR_OS"
313
  fi
314
  OPENJDK_BUILD_CPU="$VAR_CPU"
315
  OPENJDK_BUILD_CPU_ARCH="$VAR_CPU_ARCH"
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  OPENJDK_BUILD_CPU_BITS="$VAR_CPU_BITS"
317
  OPENJDK_BUILD_CPU_ENDIAN="$VAR_CPU_ENDIAN"
318
  OPENJDK_BUILD_CPU_AUTOCONF="$build_cpu"
319
  OPENJDK_BUILD_LIBC="$VAR_LIBC"
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  OPENJDK_BUILD_ABI="$VAR_ABI"
321
  AC_SUBST(OPENJDK_BUILD_OS)
322
  AC_SUBST(OPENJDK_BUILD_OS_TYPE)
323
  AC_SUBST(OPENJDK_BUILD_OS_ENV)
324
  AC_SUBST(OPENJDK_BUILD_CPU)
325
  AC_SUBST(OPENJDK_BUILD_CPU_ARCH)
326
  AC_SUBST(OPENJDK_BUILD_CPU_BITS)
327
  AC_SUBST(OPENJDK_BUILD_CPU_ENDIAN)
328
  AC_SUBST(OPENJDK_BUILD_CPU_AUTOCONF)
329
  AC_SUBST(OPENJDK_BUILD_LIBC)
330
  AC_SUBST(OPENJDK_BUILD_ABI)
331

332
  AC_MSG_CHECKING([openjdk-build os-cpu])
333
  AC_MSG_RESULT([$OPENJDK_BUILD_OS-$OPENJDK_BUILD_CPU])
334

335
  if test "x$OPENJDK_BUILD_OS" = "xlinux"; then
336
    AC_MSG_CHECKING([openjdk-build C library])
337
    AC_MSG_RESULT([$OPENJDK_BUILD_LIBC])
338
  fi
339

340
  # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU/LIBC variables.
341
  PLATFORM_EXTRACT_VARS_FROM_OS($host_os)
342
  PLATFORM_EXTRACT_VARS_FROM_CPU($host_cpu)
343
  PLATFORM_EXTRACT_VARS_FROM_LIBC($host_os)
344
  PLATFORM_EXTRACT_VARS_FROM_ABI($host_os)
345
  # ... and setup our own variables. (Do this explicitly to facilitate searching)
346
  OPENJDK_TARGET_OS="$VAR_OS"
347
  if test "x$VAR_OS_TYPE" != x; then
348
    OPENJDK_TARGET_OS_TYPE="$VAR_OS_TYPE"
349
  else
350
    OPENJDK_TARGET_OS_TYPE="$VAR_OS"
351
  fi
352
  if test "x$VAR_OS_ENV" != x; then
353
    OPENJDK_TARGET_OS_ENV="$VAR_OS_ENV"
354
  else
355
    OPENJDK_TARGET_OS_ENV="$VAR_OS"
356
  fi
357
  OPENJDK_TARGET_CPU="$VAR_CPU"
358
  OPENJDK_TARGET_CPU_ARCH="$VAR_CPU_ARCH"
359
  OPENJDK_TARGET_CPU_BITS="$VAR_CPU_BITS"
360
  OPENJDK_TARGET_CPU_ENDIAN="$VAR_CPU_ENDIAN"
361
  OPENJDK_TARGET_CPU_AUTOCONF="$host_cpu"
362
  OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
363
  OPENJDK_TARGET_LIBC="$VAR_LIBC"
364
  OPENJDK_TARGET_ABI="$VAR_ABI"
365

366
  AC_SUBST(OPENJDK_TARGET_OS)
367
  AC_SUBST(OPENJDK_TARGET_OS_TYPE)
368
  AC_SUBST(OPENJDK_TARGET_OS_ENV)
369
  AC_SUBST(OPENJDK_TARGET_OS_UPPERCASE)
370
  AC_SUBST(OPENJDK_TARGET_CPU)
371
  AC_SUBST(OPENJDK_TARGET_CPU_ARCH)
372
  AC_SUBST(OPENJDK_TARGET_CPU_BITS)
373
  AC_SUBST(OPENJDK_TARGET_CPU_ENDIAN)
374
  AC_SUBST(OPENJDK_TARGET_CPU_AUTOCONF)
375
  AC_SUBST(OPENJDK_TARGET_LIBC)
376
  AC_SUBST(OPENJDK_TARGET_ABI)
377

378
  AC_MSG_CHECKING([openjdk-target os-cpu])
379
  AC_MSG_RESULT([$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
380

381
  if test "x$OPENJDK_TARGET_OS" = "xlinux"; then
382
    AC_MSG_CHECKING([openjdk-target C library])
383
    AC_MSG_RESULT([$OPENJDK_TARGET_LIBC])
384
  fi
385
])
386

387
# Check if a reduced build (32-bit on 64-bit platforms) is requested, and modify behavior
388
# accordingly. Must be done after setting up build and target system, but before
389
# doing anything else with these values.
390
AC_DEFUN([PLATFORM_SETUP_TARGET_CPU_BITS],
391
[
392
  AC_ARG_WITH(target-bits, [AS_HELP_STRING([--with-target-bits],
393
       [build 32-bit or 64-bit binaries (for platforms that support it), e.g. --with-target-bits=32 @<:@guessed@:>@])])
394

395
  # We have three types of compiles:
396
  # native  == normal compilation, target system == build system
397
  # cross   == traditional cross compilation, target system != build system; special toolchain needed
398
  # reduced == using native compilers, but with special flags (e.g. -m32) to produce 32-bit builds on 64-bit machines
399
  #
400
  if test "x$OPENJDK_BUILD_AUTOCONF_NAME" != "x$OPENJDK_TARGET_AUTOCONF_NAME"; then
401
    # We're doing a proper cross-compilation
402
    COMPILE_TYPE="cross"
403
  else
404
    COMPILE_TYPE="native"
405
  fi
406

407
  if test "x$with_target_bits" != x; then
408
    if test "x$COMPILE_TYPE" = "xcross"; then
409
      AC_MSG_ERROR([It is not possible to combine --with-target-bits=X and proper cross-compilation. Choose either.])
410
    fi
411

412
    if test "x$with_target_bits" = x32 && test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
413
      # A reduced build is requested
414
      COMPILE_TYPE="reduced"
415
      OPENJDK_TARGET_CPU_BITS=32
416
      if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
417
        OPENJDK_TARGET_CPU=x86
418
      elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
419
        OPENJDK_TARGET_CPU=sparc
420
      else
421
        AC_MSG_ERROR([Reduced build (--with-target-bits=32) is only supported on x86_64 and sparcv9])
422
      fi
423
    elif test "x$with_target_bits" = x64 && test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
424
      AC_MSG_ERROR([It is not possible to use --with-target-bits=64 on a 32 bit system. Use proper cross-compilation instead.])
425
    elif test "x$with_target_bits" = "x$OPENJDK_TARGET_CPU_BITS"; then
426
      AC_MSG_NOTICE([--with-target-bits are set to build platform address size; argument has no meaning])
427
    else
428
      AC_MSG_ERROR([--with-target-bits can only be 32 or 64, you specified $with_target_bits!])
429
    fi
430
  fi
431
  AC_SUBST(COMPILE_TYPE)
432

433
  AC_MSG_CHECKING([compilation type])
434
  AC_MSG_RESULT([$COMPILE_TYPE])
435
])
436

437
# Setup the legacy variables, for controlling the old makefiles.
438
#
439
AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS],
440
[
441
  PLATFORM_SETUP_LEGACY_VARS_HELPER([TARGET])
442
  PLATFORM_SETUP_LEGACY_VARS_HELPER([BUILD])
443
])
444

445
# $1 - Either TARGET or BUILD to setup the variables for.
446
AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS_HELPER],
447
[
448
  # Also store the legacy naming of the cpu.
449
  # Ie i586 and amd64 instead of x86 and x86_64
450
  OPENJDK_$1_CPU_LEGACY="$OPENJDK_$1_CPU"
451
  if test "x$OPENJDK_$1_CPU" = xx86; then
452
    OPENJDK_$1_CPU_LEGACY="i586"
453
  elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
454
    # On all platforms except MacOSX replace x86_64 with amd64.
455
    OPENJDK_$1_CPU_LEGACY="amd64"
456
  elif test "x$OPENJDK_$1_CPU" = xalpha; then
457
    # Avoid name collisions with variables named alpha
458
    OPENJDK_$1_CPU_LEGACY="_alpha_"
459
  elif test "x$OPENJDK_$1_CPU" = xsh; then
460
    # Avoid name collisions with variables named sh
461
    OPENJDK_$1_CPU_LEGACY="_sh_"
462
  fi
463
  AC_SUBST(OPENJDK_$1_CPU_LEGACY)
464

465
  # And the second legacy naming of the cpu.
466
  # Ie i386 and amd64 instead of x86 and x86_64.
467
  OPENJDK_$1_CPU_LEGACY_LIB="$OPENJDK_$1_CPU"
468
  if test "x$OPENJDK_$1_CPU" = xx86; then
469
    OPENJDK_$1_CPU_LEGACY_LIB="i386"
470
  elif test "x$OPENJDK_$1_CPU" = xx86_64; then
471
    OPENJDK_$1_CPU_LEGACY_LIB="amd64"
472
  fi
473
  AC_SUBST(OPENJDK_$1_CPU_LEGACY_LIB)
474

475
  # Setup OPENJDK_$1_CPU_OSARCH, which is used to set the os.arch Java system property
476
  OPENJDK_$1_CPU_OSARCH="$OPENJDK_$1_CPU"
477
  if test "x$OPENJDK_$1_OS" = xlinux && test "x$OPENJDK_$1_CPU" = xx86; then
478
    # On linux only, we replace x86 with i386.
479
    OPENJDK_$1_CPU_OSARCH="i386"
480
  elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
481
    # On all platforms except macosx, we replace x86_64 with amd64.
482
    OPENJDK_$1_CPU_OSARCH="amd64"
483
  fi
484
  AC_SUBST(OPENJDK_$1_CPU_OSARCH)
485

486
  OPENJDK_$1_CPU_JLI="$OPENJDK_$1_CPU"
487
  if test "x$OPENJDK_$1_CPU" = xx86; then
488
    OPENJDK_$1_CPU_JLI="i386"
489
  elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
490
    # On all platforms except macosx, we replace x86_64 with amd64.
491
    OPENJDK_$1_CPU_JLI="amd64"
492
  fi
493

494
  # The new version string in JDK 9 also defined new naming of OS and ARCH for bundles
495
  # The macOS bundle name was revised in JDK 17
496
  #
497
  # macosx is macos and x86_64 is x64
498
  if test "x$OPENJDK_$1_OS" = xmacosx; then
499
    OPENJDK_$1_OS_BUNDLE="macos"
500
  else
501
    OPENJDK_$1_OS_BUNDLE="$OPENJDK_TARGET_OS"
502
  fi
503
  if test "x$OPENJDK_$1_CPU" = xx86_64; then
504
    OPENJDK_$1_CPU_BUNDLE="x64"
505
  else
506
    OPENJDK_$1_CPU_BUNDLE="$OPENJDK_$1_CPU"
507
  fi
508

509
  OPENJDK_$1_LIBC_BUNDLE=""
510
  if test "x$OPENJDK_$1_LIBC" = "xmusl"; then
511
    OPENJDK_$1_LIBC_BUNDLE="-$OPENJDK_$1_LIBC"
512
  fi
513

514
  OPENJDK_$1_BUNDLE_PLATFORM="${OPENJDK_$1_OS_BUNDLE}-${OPENJDK_$1_CPU_BUNDLE}${OPENJDK_$1_LIBC_BUNDLE}"
515
  AC_SUBST(OPENJDK_$1_BUNDLE_PLATFORM)
516

517
  if test "x$COMPILE_TYPE" = "xcross"; then
518
    # FIXME: ... or should this include reduced builds..?
519
    DEFINE_CROSS_COMPILE_ARCH="CROSS_COMPILE_ARCH:=$OPENJDK_$1_CPU_LEGACY"
520
  else
521
    DEFINE_CROSS_COMPILE_ARCH=""
522
  fi
523
  AC_SUBST(DEFINE_CROSS_COMPILE_ARCH)
524

525
  # Convert openjdk platform names to hotspot names
526

527
  HOTSPOT_$1_OS=${OPENJDK_$1_OS}
528
  if test "x$OPENJDK_$1_OS" = xmacosx; then
529
    HOTSPOT_$1_OS=bsd
530
  fi
531
  AC_SUBST(HOTSPOT_$1_OS)
532

533
  HOTSPOT_$1_OS_TYPE=${OPENJDK_$1_OS_TYPE}
534
  if test "x$OPENJDK_$1_OS_TYPE" = xunix; then
535
    HOTSPOT_$1_OS_TYPE=posix
536
  fi
537
  AC_SUBST(HOTSPOT_$1_OS_TYPE)
538

539
  HOTSPOT_$1_CPU=${OPENJDK_$1_CPU}
540
  if test "x$OPENJDK_$1_CPU" = xx86; then
541
    HOTSPOT_$1_CPU=x86_32
542
  elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
543
    HOTSPOT_$1_CPU=sparc
544
  elif test "x$OPENJDK_$1_CPU" = xppc64; then
545
    HOTSPOT_$1_CPU=ppc_64
546
  elif test "x$OPENJDK_$1_CPU" = xppc64le; then
547
    HOTSPOT_$1_CPU=ppc_64
548
  fi
549
  AC_SUBST(HOTSPOT_$1_CPU)
550

551
  # This is identical with OPENJDK_*, but define anyway for consistency.
552
  HOTSPOT_$1_CPU_ARCH=${OPENJDK_$1_CPU_ARCH}
553
  AC_SUBST(HOTSPOT_$1_CPU_ARCH)
554

555
  # Setup HOTSPOT_$1_CPU_DEFINE
556
  if test "x$OPENJDK_$1_CPU" = xx86; then
557
    HOTSPOT_$1_CPU_DEFINE=IA32
558
  elif test "x$OPENJDK_$1_CPU" = xx86_64; then
559
    HOTSPOT_$1_CPU_DEFINE=AMD64
560
  elif test "x$OPENJDK_$1_CPU" = xx32; then
561
    HOTSPOT_$1_CPU_DEFINE=X32
562
  elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
563
    HOTSPOT_$1_CPU_DEFINE=SPARC
564
  elif test "x$OPENJDK_$1_CPU" = xaarch64; then
565
    HOTSPOT_$1_CPU_DEFINE=AARCH64
566
  elif test "x$OPENJDK_$1_CPU" = xppc64; then
567
    HOTSPOT_$1_CPU_DEFINE=PPC64
568
  elif test "x$OPENJDK_$1_CPU" = xppc64le; then
569
    HOTSPOT_$1_CPU_DEFINE=PPC64
570
  elif test "x$OPENJDK_$1_CPU" = xriscv64; then
571
    HOTSPOT_$1_CPU_DEFINE=RISCV64
572

573
  # The cpu defines below are for zero, we don't support them directly.
574
  elif test "x$OPENJDK_$1_CPU" = xsparc; then
575
    HOTSPOT_$1_CPU_DEFINE=SPARC
576
  elif test "x$OPENJDK_$1_CPU" = xppc; then
577
    HOTSPOT_$1_CPU_DEFINE=PPC32
578
  elif test "x$OPENJDK_$1_CPU" = xriscv32; then
579
    HOTSPOT_$1_CPU_DEFINE=RISCV32
580
  elif test "x$OPENJDK_$1_CPU" = xs390; then
581
    HOTSPOT_$1_CPU_DEFINE=S390
582
  elif test "x$OPENJDK_$1_CPU" = xs390x; then
583
    HOTSPOT_$1_CPU_DEFINE=S390
584
  elif test "x$OPENJDK_$1_CPU" = xloongarch64; then
585
    HOTSPOT_$1_CPU_DEFINE=LOONGARCH64
586
  elif test "x$OPENJDK_$1_CPU" != x; then
587
    HOTSPOT_$1_CPU_DEFINE=$(echo $OPENJDK_$1_CPU | tr a-z A-Z)
588
  fi
589
  AC_SUBST(HOTSPOT_$1_CPU_DEFINE)
590

591
  HOTSPOT_$1_LIBC=$OPENJDK_$1_LIBC
592
  AC_SUBST(HOTSPOT_$1_LIBC)
593

594
  # For historical reasons, the OS include directories have odd names.
595
  OPENJDK_$1_OS_INCLUDE_SUBDIR="$OPENJDK_TARGET_OS"
596
  if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
597
    OPENJDK_$1_OS_INCLUDE_SUBDIR="win32"
598
  elif test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
599
    OPENJDK_$1_OS_INCLUDE_SUBDIR="darwin"
600
  fi
601
  AC_SUBST(OPENJDK_$1_OS_INCLUDE_SUBDIR)
602
])
603

604
AC_DEFUN([PLATFORM_SET_RELEASE_FILE_OS_VALUES],
605
[
606
  if test "x$OPENJDK_TARGET_OS" = "xlinux"; then
607
    RELEASE_FILE_OS_NAME=Linux
608
  fi
609
  if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
610
    RELEASE_FILE_OS_NAME=Windows
611
  fi
612
  if test "x$OPENJDK_TARGET_OS" = xmacosx; then
613
    RELEASE_FILE_OS_NAME="Darwin"
614
  fi
615
  if test "x$OPENJDK_TARGET_OS" = "xaix"; then
616
    RELEASE_FILE_OS_NAME="AIX"
617
  fi
618
  RELEASE_FILE_OS_ARCH=${OPENJDK_TARGET_CPU}
619
  RELEASE_FILE_LIBC=${OPENJDK_TARGET_LIBC}
620

621
  AC_SUBST(RELEASE_FILE_OS_NAME)
622
  AC_SUBST(RELEASE_FILE_OS_ARCH)
623
  AC_SUBST(RELEASE_FILE_LIBC)
624
])
625

626
AC_DEFUN([PLATFORM_SET_MODULE_TARGET_OS_VALUES],
627
[
628
  if test "x$OPENJDK_TARGET_OS" = xmacosx; then
629
    OPENJDK_MODULE_TARGET_OS_NAME="macos"
630
  else
631
    OPENJDK_MODULE_TARGET_OS_NAME="$OPENJDK_TARGET_OS"
632
  fi
633

634
  if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
635
    OPENJDK_MODULE_TARGET_OS_ARCH="amd64"
636
  else
637
    OPENJDK_MODULE_TARGET_OS_ARCH="$OPENJDK_TARGET_CPU"
638
  fi
639

640
  OPENJDK_MODULE_TARGET_PLATFORM="${OPENJDK_MODULE_TARGET_OS_NAME}-${OPENJDK_MODULE_TARGET_OS_ARCH}"
641
  AC_SUBST(OPENJDK_MODULE_TARGET_PLATFORM)
642
])
643

644
#%%% Build and target systems %%%
645
# Make sure to only use tools set up in BASIC_SETUP_FUNDAMENTAL_TOOLS.
646
AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_AND_TARGET],
647
[
648
  # Figure out the build and target systems. # Note that in autoconf terminology, "build" is obvious, but "target"
649
  # is confusing; it assumes you are cross-compiling a cross-compiler (!)  and "target" is thus the target of the
650
  # product you're building. The target of this build is called "host". Since this is confusing to most people, we
651
  # have not adopted that system, but use "target" as the platform we are building for. In some places though we need
652
  # to use the configure naming style.
653
  AC_CANONICAL_BUILD
654
  AC_CANONICAL_HOST
655
  AC_CANONICAL_TARGET
656

657
  PLATFORM_EXTRACT_TARGET_AND_BUILD
658
  PLATFORM_SETUP_TARGET_CPU_BITS
659
  PLATFORM_SET_MODULE_TARGET_OS_VALUES
660
  PLATFORM_SET_RELEASE_FILE_OS_VALUES
661
  PLATFORM_SETUP_LEGACY_VARS
662
  PLATFORM_CHECK_DEPRECATION
663
])
664

665
AC_DEFUN([PLATFORM_CHECK_DEPRECATION],
666
[
667
  AC_ARG_ENABLE(deprecated-ports, [AS_HELP_STRING([--enable-deprecated-ports@<:@=yes/no@:>@],
668
       [Suppress the error when configuring for a deprecated port @<:@no@:>@])])
669
  if test "x$OPENJDK_TARGET_OS" = xwindows && test "x$OPENJDK_TARGET_CPU" = xx86; then
670
    if test "x$enable_deprecated_ports" = "xyes"; then
671
      AC_MSG_WARN([The Windows 32-bit x86 port is deprecated and may be removed in a future release.])
672
    else
673
      AC_MSG_ERROR(m4_normalize([The Windows 32-bit x86 port is deprecated and may be removed in a future release.
674
        Use --enable-deprecated-ports=yes to suppress this error.]))
675
    fi
676
  fi
677
])
678

679
AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_OS_VERSION],
680
[
681
  ###############################################################################
682

683
  # Note that this is the build platform OS version!
684

685
  OS_VERSION="`uname -r | ${SED} 's!\.! !g' | ${SED} 's!-! !g'`"
686
  OS_VERSION_MAJOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 1 -d ' '`"
687
  OS_VERSION_MINOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 2 -d ' '`"
688
  OS_VERSION_MICRO="`${ECHO} ${OS_VERSION} | ${CUT} -f 3 -d ' '`"
689
  AC_SUBST(OS_VERSION_MAJOR)
690
  AC_SUBST(OS_VERSION_MINOR)
691
  AC_SUBST(OS_VERSION_MICRO)
692
])
693

694
AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_BITS],
695
[
696
  ###############################################################################
697
  #
698
  # Now we check if libjvm.so will use 32 or 64 bit pointers for the C/C++ code.
699
  # (The JVM can use 32 or 64 bit Java pointers but that decision
700
  # is made at runtime.)
701
  #
702

703
  # Make compilation sanity check
704
  AC_CHECK_HEADERS([stdio.h], , [
705
    AC_MSG_NOTICE([Failed to compile stdio.h. This likely implies missing compile dependencies.])
706
    if test "x$COMPILE_TYPE" = xreduced; then
707
      HELP_MSG_MISSING_DEPENDENCY([reduced])
708
      AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed. $HELP_MSG])
709
    elif test "x$COMPILE_TYPE" = xcross; then
710
      AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.])
711
    fi
712
    AC_MSG_ERROR([Cannot continue.])
713
  ])
714

715
  AC_CHECK_SIZEOF([int *], [1111])
716

717
  # AC_CHECK_SIZEOF defines 'ac_cv_sizeof_int_p' to hold the number of bytes used by an 'int*'
718
  if test "x$ac_cv_sizeof_int_p" = x; then
719
    # The test failed, lets stick to the assumed value.
720
    AC_MSG_WARN([The number of bits in the target could not be determined, using $OPENJDK_TARGET_CPU_BITS.])
721
  else
722
    TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p`
723

724
    if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then
725
      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)])
726
      if test "x$COMPILE_TYPE" = xreduced; then
727
        HELP_MSG_MISSING_DEPENDENCY([reduced])
728
        AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed. $HELP_MSG])
729
      elif test "x$COMPILE_TYPE" = xcross; then
730
        AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.])
731
      fi
732
      AC_MSG_ERROR([Cannot continue.])
733
    fi
734
  fi
735

736
  AC_MSG_CHECKING([for target address size])
737
  AC_MSG_RESULT([$OPENJDK_TARGET_CPU_BITS bits])
738
])
739

740
AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_ENDIANNESS],
741
[
742
  ###############################################################################
743
  #
744
  # Is the target little or big endian?
745
  #
746
  AC_C_BIGENDIAN([ENDIAN="big"],[ENDIAN="little"],[ENDIAN="unknown"],[ENDIAN="universal_endianness"])
747

748
  if test "x$ENDIAN" = xuniversal_endianness; then
749
    AC_MSG_ERROR([Building with both big and little endianness is not supported])
750
  fi
751
  if test "x$ENDIAN" != "x$OPENJDK_TARGET_CPU_ENDIAN"; then
752
    AC_MSG_ERROR([The tested endian in the target ($ENDIAN) differs from the endian expected to be found in the target ($OPENJDK_TARGET_CPU_ENDIAN)])
753
  fi
754
])
755

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