#

# Copyright (c) 2011, 2018, 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*x32)

      VAR_CPU=x32

      VAR_CPU_ARCH=x86

      VAR_CPU_BITS=32

      VAR_CPU_ENDIAN=little

      ;;

    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

      ;;

    alpha*)

      VAR_CPU=alpha

      VAR_CPU_ARCH=alpha

      VAR_CPU_BITS=64

      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

      ;;

    ia64)

      VAR_CPU=ia64

      VAR_CPU_ARCH=ia64

      VAR_CPU_BITS=64

      VAR_CPU_ENDIAN=little

      ;;

    m68k)

      VAR_CPU=m68k

      VAR_CPU_ARCH=m68k

      VAR_CPU_BITS=32

      VAR_CPU_ENDIAN=big

      ;;

    mips)

      VAR_CPU=mips

      VAR_CPU_ARCH=mips

      VAR_CPU_BITS=32

      VAR_CPU_ENDIAN=big

      ;;

    mipsel)

      VAR_CPU=mipsel

      VAR_CPU_ARCH=mipsel

      VAR_CPU_BITS=32

      VAR_CPU_ENDIAN=little

      ;;

    mips64)

      VAR_CPU=mips64

      VAR_CPU_ARCH=mips64

      VAR_CPU_BITS=64

      VAR_CPU_ENDIAN=big

      ;;

    mips64el)

      VAR_CPU=mips64el

      VAR_CPU_ARCH=mips64el

      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

      ;;

    sh*eb)

      VAR_CPU=sh

      VAR_CPU_ARCH=sh

      VAR_CPU_BITS=32

      VAR_CPU_ENDIAN=big

      ;;

    sh*)

      VAR_CPU=sh

      VAR_CPU_ARCH=sh

      VAR_CPU_BITS=32

      VAR_CPU_ENDIAN=little

      ;;

    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, VAR_OS_TYPE and VAR_OS_ENV.

AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_OS],

[

  case "$1" in

    *linux*)

      VAR_OS=linux

      VAR_OS_TYPE=unix

      ;;

    *solaris*)

      VAR_OS=solaris

      VAR_OS_TYPE=unix

      ;;

    *darwin*)

      VAR_OS=macosx

      VAR_OS_TYPE=unix

      ;;

    *bsd*)

      VAR_OS=bsd

      VAR_OS_TYPE=unix

      ;;

    *cygwin*)

      VAR_OS=windows

      VAR_OS_ENV=windows.cygwin

      ;;

    *wsl*)

      VAR_OS=windows

      VAR_OS_ENV=windows.wsl

      ;;

    *mingw*)

      VAR_OS=windows

      VAR_OS_ENV=windows.msys

      ;;

    *aix*)

      VAR_OS=aix

      VAR_OS_TYPE=unix

      ;;

    *)

      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 explicitly to facilitate searching)

  OPENJDK_BUILD_OS="$VAR_OS"

  if test "x$VAR_OS_TYPE" != x; then

    OPENJDK_BUILD_OS_TYPE="$VAR_OS_TYPE"

  else

    OPENJDK_BUILD_OS_TYPE="$VAR_OS"

  fi

  if test "x$VAR_OS_ENV" != x; then

    OPENJDK_BUILD_OS_ENV="$VAR_OS_ENV"

  else

    OPENJDK_BUILD_OS_ENV="$VAR_OS"

  fi

  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_TYPE)

  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 explicitly to facilitate searching)

  OPENJDK_TARGET_OS="$VAR_OS"

  if test "x$VAR_OS_TYPE" != x; then

    OPENJDK_TARGET_OS_TYPE="$VAR_OS_TYPE"

  else

    OPENJDK_TARGET_OS_TYPE="$VAR_OS"

  fi

  if test "x$VAR_OS_ENV" != x; then

    OPENJDK_TARGET_OS_ENV="$VAR_OS_ENV"

  else

    OPENJDK_TARGET_OS_ENV="$VAR_OS"

  fi

  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"

  OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`

  AC_SUBST(OPENJDK_TARGET_OS)

  AC_SUBST(OPENJDK_TARGET_OS_TYPE)

  AC_SUBST(OPENJDK_TARGET_OS_ENV)

  AC_SUBST(OPENJDK_TARGET_OS_UPPERCASE)

  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],

[

  PLATFORM_SETUP_LEGACY_VARS_HELPER([TARGET])

  PLATFORM_SETUP_LEGACY_VARS_HELPER([BUILD])

])

# $1 - Either TARGET or BUILD to setup the variables for.

AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS_HELPER],

[

  # Also store the legacy naming of the cpu.

  # Ie i586 and amd64 instead of x86 and x86_64

  OPENJDK_$1_CPU_LEGACY="$OPENJDK_$1_CPU"

  if test "x$OPENJDK_$1_CPU" = xx86; then

    OPENJDK_$1_CPU_LEGACY="i586"

  elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then

    # On all platforms except MacOSX replace x86_64 with amd64.

    OPENJDK_$1_CPU_LEGACY="amd64"

  elif test "x$OPENJDK_$1_CPU" = xalpha; then

    # Avoid name collisions with variables named alpha

    OPENJDK_$1_CPU_LEGACY="_alpha_"

  elif test "x$OPENJDK_$1_CPU" = xsh; then

    # Avoid name collisions with variables named sh

    OPENJDK_$1_CPU_LEGACY="_sh_"

  fi

  AC_SUBST(OPENJDK_$1_CPU_LEGACY)

  # And the second legacy naming of the cpu.

  # Ie i386 and amd64 instead of x86 and x86_64.

  OPENJDK_$1_CPU_LEGACY_LIB="$OPENJDK_$1_CPU"

  if test "x$OPENJDK_$1_CPU" = xx86; then

    OPENJDK_$1_CPU_LEGACY_LIB="i386"

  elif test "x$OPENJDK_$1_CPU" = xx86_64; then

    OPENJDK_$1_CPU_LEGACY_LIB="amd64"

  fi

  AC_SUBST(OPENJDK_$1_CPU_LEGACY_LIB)

  # OPENJDK_$1_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_$1_CPU_ISADIR}/libexample.so

  OPENJDK_$1_CPU_ISADIR=""

  if test "x$OPENJDK_$1_OS" = xsolaris; then

    if test "x$OPENJDK_$1_CPU" = xx86_64; then

      OPENJDK_$1_CPU_ISADIR="/amd64"

    elif test "x$OPENJDK_$1_CPU" = xsparcv9; then

      OPENJDK_$1_CPU_ISADIR="/sparcv9"

    fi

  fi

  AC_SUBST(OPENJDK_$1_CPU_ISADIR)

  # Setup OPENJDK_$1_CPU_OSARCH, which is used to set the os.arch Java system property

  OPENJDK_$1_CPU_OSARCH="$OPENJDK_$1_CPU"

  if test "x$OPENJDK_$1_OS" = xlinux && test "x$OPENJDK_$1_CPU" = xx86; then

    # On linux only, we replace x86 with i386.

    OPENJDK_$1_CPU_OSARCH="i386"

  elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then

    # On all platforms except macosx, we replace x86_64 with amd64.

    OPENJDK_$1_CPU_OSARCH="amd64"

  fi

  AC_SUBST(OPENJDK_$1_CPU_OSARCH)

  OPENJDK_$1_CPU_JLI="$OPENJDK_$1_CPU"

  if test "x$OPENJDK_$1_CPU" = xx86; then

    OPENJDK_$1_CPU_JLI="i386"

  elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then

    # On all platforms except macosx, we replace x86_64 with amd64.

    OPENJDK_$1_CPU_JLI="amd64"

  fi

  # The new version string in JDK 9 also defined new naming of OS and ARCH for bundles

  # Macosx is osx and x86_64 is x64

  if test "x$OPENJDK_$1_OS" = xmacosx; then

    OPENJDK_$1_OS_BUNDLE="osx"

  else

    OPENJDK_$1_OS_BUNDLE="$OPENJDK_TARGET_OS"

  fi

  if test "x$OPENJDK_$1_CPU" = xx86_64; then

    OPENJDK_$1_CPU_BUNDLE="x64"

  else

    OPENJDK_$1_CPU_BUNDLE="$OPENJDK_$1_CPU"

  fi

  OPENJDK_$1_BUNDLE_PLATFORM="${OPENJDK_$1_OS_BUNDLE}-${OPENJDK_$1_CPU_BUNDLE}"

  AC_SUBST(OPENJDK_$1_BUNDLE_PLATFORM)

  if test "x$COMPILE_TYPE" = "xcross"; then

    # FIXME: ... or should this include reduced builds..?

    DEFINE_CROSS_COMPILE_ARCH="CROSS_COMPILE_ARCH:=$OPENJDK_$1_CPU_LEGACY"

  else

    DEFINE_CROSS_COMPILE_ARCH=""

  fi

  AC_SUBST(DEFINE_CROSS_COMPILE_ARCH)

  # Convert openjdk platform names to hotspot names

  HOTSPOT_$1_OS=${OPENJDK_$1_OS}

  if test "x$OPENJDK_$1_OS" = xmacosx; then

    HOTSPOT_$1_OS=bsd

  fi

  AC_SUBST(HOTSPOT_$1_OS)

  HOTSPOT_$1_OS_TYPE=${OPENJDK_$1_OS_TYPE}

  if test "x$OPENJDK_$1_OS_TYPE" = xunix; then

    HOTSPOT_$1_OS_TYPE=posix

  fi

  AC_SUBST(HOTSPOT_$1_OS_TYPE)

  HOTSPOT_$1_CPU=${OPENJDK_$1_CPU}

  if test "x$OPENJDK_$1_CPU" = xx86; then

    HOTSPOT_$1_CPU=x86_32

  elif test "x$OPENJDK_$1_CPU" = xsparcv9; then

    HOTSPOT_$1_CPU=sparc

  elif test "x$OPENJDK_$1_CPU" = xppc64; then

    HOTSPOT_$1_CPU=ppc_64

  elif test "x$OPENJDK_$1_CPU" = xppc64le; then

    HOTSPOT_$1_CPU=ppc_64

  fi

  AC_SUBST(HOTSPOT_$1_CPU)

  # This is identical with OPENJDK_*, but define anyway for consistency.

  HOTSPOT_$1_CPU_ARCH=${OPENJDK_$1_CPU_ARCH}

  AC_SUBST(HOTSPOT_$1_CPU_ARCH)

  # Setup HOTSPOT_$1_CPU_DEFINE

  if test "x$OPENJDK_$1_CPU" = xx86; then

    HOTSPOT_$1_CPU_DEFINE=IA32

  elif test "x$OPENJDK_$1_CPU" = xx86_64; then

    HOTSPOT_$1_CPU_DEFINE=AMD64

  elif test "x$OPENJDK_$1_CPU" = xx32; then

    HOTSPOT_$1_CPU_DEFINE=X32

  elif test "x$OPENJDK_$1_CPU" = xsparcv9; then

    HOTSPOT_$1_CPU_DEFINE=SPARC

  elif test "x$OPENJDK_$1_CPU" = xaarch64; then

    HOTSPOT_$1_CPU_DEFINE=AARCH64

  elif test "x$OPENJDK_$1_CPU" = xppc64; then

    HOTSPOT_$1_CPU_DEFINE=PPC64

  elif test "x$OPENJDK_$1_CPU" = xppc64le; then

    HOTSPOT_$1_CPU_DEFINE=PPC64

  # The cpu defines below are for zero, we don't support them directly.

  elif test "x$OPENJDK_$1_CPU" = xsparc; then

    HOTSPOT_$1_CPU_DEFINE=SPARC

  elif test "x$OPENJDK_$1_CPU" = xppc; then

    HOTSPOT_$1_CPU_DEFINE=PPC32

  elif test "x$OPENJDK_$1_CPU" = xs390; then

    HOTSPOT_$1_CPU_DEFINE=S390

  elif test "x$OPENJDK_$1_CPU" = xs390x; then

    HOTSPOT_$1_CPU_DEFINE=S390

  elif test "x$OPENJDK_$1_CPU" != x; then

    HOTSPOT_$1_CPU_DEFINE=$(echo $OPENJDK_$1_CPU | tr a-z A-Z)

  fi

  AC_SUBST(HOTSPOT_$1_CPU_DEFINE)