#

# Copyright (c) 2011, 2014, 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.

#

AC_DEFUN_ONCE([FLAGS_SETUP_INIT_FLAGS],

[

  # Option used to tell the compiler whether to create 32- or 64-bit executables

  if test "x$TOOLCHAIN_TYPE" = xxlc; then

    COMPILER_TARGET_BITS_FLAG="-q"

  else

    COMPILER_TARGET_BITS_FLAG="-m"

  fi

  AC_SUBST(COMPILER_TARGET_BITS_FLAG)

  # FIXME: figure out if we should select AR flags depending on OS or toolchain.

  if test "x$OPENJDK_TARGET_OS" = xmacosx; then

    ARFLAGS="-r"

  elif test "x$OPENJDK_TARGET_OS" = xaix; then

    ARFLAGS="-X64"

  elif test "x$OPENJDK_TARGET_OS" = xwindows; then

    # lib.exe is used as AR to create static libraries.

    ARFLAGS="-nologo -NODEFAULTLIB:MSVCRT"

  else

    ARFLAGS=""

  fi

  AC_SUBST(ARFLAGS)

  ## Setup strip.

  # FIXME: should this really be per platform, or should it be per toolchain type?

  # strip is not provided by clang or solstudio; so guessing platform makes most sense.

  # FIXME: we should really only export STRIPFLAGS from here, not POST_STRIP_CMD.

  if test "x$OPENJDK_TARGET_OS" = xlinux; then

    STRIPFLAGS="-g"

  elif test "x$OPENJDK_TARGET_OS" = xsolaris; then

    STRIPFLAGS="-x"

  elif test "x$OPENJDK_TARGET_OS" = xmacosx; then

    STRIPFLAGS="-S"

  elif test "x$OPENJDK_TARGET_OS" = xaix; then

    STRIPFLAGS="-X32_64"

  fi

  if test "x$OPENJDK_TARGET_OS" != xwindows; then

    POST_STRIP_CMD="$STRIP $STRIPFLAGS"

  fi

  AC_SUBST(POST_STRIP_CMD)

  if test "x$OPENJDK_TARGET_OS" = xsolaris; then

    # FIXME: break out into MCSFLAGS

    POST_MCS_CMD="$MCS -d -a \"JDK $FULL_VERSION\""

  fi

  AC_SUBST(POST_MCS_CMD)

  if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then

    CC_OUT_OPTION=-Fo

    EXE_OUT_OPTION=-out:

    LD_OUT_OPTION=-out:

    AR_OUT_OPTION=-out:

  else

    # The option used to specify the target .o,.a or .so file.

    # When compiling, how to specify the to be created object file.

    CC_OUT_OPTION='-o$(SPACE)'

    # When linking, how to specify the to be created executable.

    EXE_OUT_OPTION='-o$(SPACE)'

    # When linking, how to specify the to be created dynamically linkable library.

    LD_OUT_OPTION='-o$(SPACE)'

    # When archiving, how to specify the to be create static archive for object files.

    AR_OUT_OPTION='rcs$(SPACE)'

  fi

  AC_SUBST(CC_OUT_OPTION)

  AC_SUBST(EXE_OUT_OPTION)

  AC_SUBST(LD_OUT_OPTION)

  AC_SUBST(AR_OUT_OPTION)

  # On Windows, we need to set RC flags.

  if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then

    RC_FLAGS="-nologo -l 0x409 -r"

    if test "x$VARIANT" = xOPT; then

      RC_FLAGS="$RC_FLAGS -d NDEBUG"

    fi

    # The version variables used to create RC_FLAGS may be overridden

    # in a custom configure script, or possibly the command line.

    # Let those variables be expanded at make time in spec.gmk.

    # The \$ are escaped to the shell, and the $(...) variables

    # are evaluated by make.

    RC_FLAGS="$RC_FLAGS \

        -d \"JDK_BUILD_ID=\$(FULL_VERSION)\" \

        -d \"JDK_COMPANY=\$(COMPANY_NAME)\" \

        -d \"JDK_COMPONENT=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) binary\" \

        -d \"JDK_VER=\$(JDK_MINOR_VERSION).\$(JDK_MICRO_VERSION).\$(if \$(JDK_UPDATE_VERSION),\$(JDK_UPDATE_VERSION),0).\$(COOKED_BUILD_NUMBER)\" \

        -d \"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \

        -d \"JDK_NAME=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) \$(JDK_MINOR_VERSION) \$(JDK_UPDATE_META_TAG)\" \

        -d \"JDK_FVER=\$(JDK_MINOR_VERSION),\$(JDK_MICRO_VERSION),\$(if \$(JDK_UPDATE_VERSION),\$(JDK_UPDATE_VERSION),0),\$(COOKED_BUILD_NUMBER)\""

  fi

  AC_SUBST(RC_FLAGS)

  if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then

  fi

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

    if test "x$TOOLCHAIN_TYPE" = xsolstudio; then

      if test "x$OPENJDK_TARGET_OS" = xsolaris; then

        # Solaris Studio does not have a concept of sysroot. Instead we must

        # compile and link command line.

        SYSROOT_CFLAGS="-I$SYSROOT/usr/include"

        SYSROOT_LDFLAGS="-L$SYSROOT/usr/lib$OPENJDK_TARGET_CPU_ISADIR \

            -L$SYSROOT/lib$OPENJDK_TARGET_CPU_ISADIR \

            -L$SYSROOT/usr/ccs/lib$OPENJDK_TARGET_CPU_ISADIR"

      fi

    elif test "x$TOOLCHAIN_TYPE" = xgcc; then

      SYSROOT_CFLAGS="--sysroot=\"$SYSROOT\""

      SYSROOT_LDFLAGS="--sysroot=\"$SYSROOT\""

    elif test "x$TOOLCHAIN_TYPE" = xclang; then

      SYSROOT_CFLAGS="-isysroot \"$SYSROOT\""

      SYSROOT_LDFLAGS="-isysroot \"$SYSROOT\""

    fi

    # Propagate the sysroot args to hotspot

    LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $SYSROOT_CFLAGS"

    LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $SYSROOT_CFLAGS"

    LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $SYSROOT_LDFLAGS"

  fi

  AC_SUBST(SYSROOT_CFLAGS)

  AC_SUBST(SYSROOT_LDFLAGS)

])

AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS],

[

  ###############################################################################

  #

  # How to compile shared libraries.

  #

  if test "x$TOOLCHAIN_TYPE" = xgcc; then

    PICFLAG="-fPIC"

    C_FLAG_REORDER=''

    CXX_FLAG_REORDER=''

    if test "x$OPENJDK_TARGET_OS" = xmacosx; then

      # Linking is different on MacOSX

      SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"

      SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.'

      SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"

      SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1'

      SET_SHARED_LIBRARY_MAPFILE=''

    else

      # Default works for linux, might work on other platforms as well.

      SHARED_LIBRARY_FLAGS='-shared'

      SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1'

      SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN"

      SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1'

      SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1'

    fi

  elif test "x$TOOLCHAIN_TYPE" = xclang; then

    PICFLAG=''

    C_FLAG_REORDER=''

    CXX_FLAG_REORDER=''

    if test "x$OPENJDK_TARGET_OS" = xmacosx; then

      # Linking is different on MacOSX

      SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"

      SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.'

      SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"

      SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1'

      SET_SHARED_LIBRARY_MAPFILE=''

    else

      # Default works for linux, might work on other platforms as well.

      SHARED_LIBRARY_FLAGS='-shared'

      SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1'

      SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN"

      SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1'

      SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1'

    fi

  elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then

    PICFLAG="-KPIC"

    C_FLAG_REORDER='-xF'

    CXX_FLAG_REORDER='-xF'

    SHARED_LIBRARY_FLAGS="-G"

    SET_EXECUTABLE_ORIGIN='-R\$$$$ORIGIN[$]1'

    SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"

    SET_SHARED_LIBRARY_NAME=''

    SET_SHARED_LIBRARY_MAPFILE='-M[$]1'

  elif test "x$TOOLCHAIN_TYPE" = xxlc; then

    PICFLAG="-qpic=large"

    C_FLAG_REORDER=''

    CXX_FLAG_REORDER=''

    SHARED_LIBRARY_FLAGS="-qmkshrobj"

    SET_EXECUTABLE_ORIGIN=""

    SET_SHARED_LIBRARY_ORIGIN=''

    SET_SHARED_LIBRARY_NAME=''

    SET_SHARED_LIBRARY_MAPFILE=''

  elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then

    PICFLAG=""

    C_FLAG_REORDER=''

    CXX_FLAG_REORDER=''

    SHARED_LIBRARY_FLAGS="-LD"

    SET_EXECUTABLE_ORIGIN=''

    SET_SHARED_LIBRARY_ORIGIN=''

    SET_SHARED_LIBRARY_NAME=''

    SET_SHARED_LIBRARY_MAPFILE=''

  fi

  AC_SUBST(C_FLAG_REORDER)

  AC_SUBST(CXX_FLAG_REORDER)

  AC_SUBST(SHARED_LIBRARY_FLAGS)

  AC_SUBST(SET_EXECUTABLE_ORIGIN)

  AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)

  AC_SUBST(SET_SHARED_LIBRARY_NAME)

  AC_SUBST(SET_SHARED_LIBRARY_MAPFILE)

  if test "x$OPENJDK_TARGET_OS" = xsolaris; then

    CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__"

    CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__"

    CFLAGS_JDKLIB_EXTRA='-xstrconst'

  fi

  # The (cross) compiler is now configured, we can now test capabilities

  # of the target platform.

])

# Documentation on common flags used for solstudio in HIGHEST.

#

# WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be

#          done with care, there are some assumptions below that need to

#          be understood about the use of pointers, and IEEE behavior.

#

# -fns: Use non-standard floating point mode (not IEEE 754)

# -fsimple: Do some simplification of floating point arithmetic (not IEEE 754)

# -fsingle: Use single precision floating point with 'float'

# -xalias_level=basic: Assume memory references via basic pointer types do not alias

#   (Source with excessing pointer casting and data access with mixed

#    pointer types are not recommended)

# -xbuiltin=%all: Use intrinsic or inline versions for math/std functions

#   (If you expect perfect errno behavior, do not use this)

# -xdepend: Loop data dependency optimizations (need -xO3 or higher)

# -xrestrict: Pointer parameters to functions do not overlap

#   (Similar to -xalias_level=basic usage, but less obvious sometimes.

#    If you pass in multiple pointers to the same data, do not use this)

# -xlibmil: Inline some library routines

#   (If you expect perfect errno behavior, do not use this)

# -xlibmopt: Use optimized math routines (CURRENTLY DISABLED)

#   (If you expect perfect errno behavior, do not use this)

#  Can cause undefined external on Solaris 8 X86 on __sincos, removing for now

    # FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore.

    # Bug?

    #if test "x$OPENJDK_TARGET_CPU" = xsparc; then

    #  CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s"

    #  CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s"

    #fi

AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION],

[

  ###############################################################################

  #

  # Setup the opt flags for different compilers

  # and different operating systems.

  #

  # FIXME: this was indirectly the old default, but just inherited.

  # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then

  #   C_FLAG_DEPS="-MMD -MF"

  # fi

  # Generate make dependency files

  if test "x$TOOLCHAIN_TYPE" = xgcc; then

    C_FLAG_DEPS="-MMD -MF"

  elif test "x$TOOLCHAIN_TYPE" = xclang; then

    C_FLAG_DEPS="-MMD -MF"

  elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then

    C_FLAG_DEPS="-xMMD -xMF"

  elif test "x$TOOLCHAIN_TYPE" = xxlc; then

    C_FLAG_DEPS="-qmakedep=gcc -MF"

  fi

  CXX_FLAG_DEPS="$C_FLAG_DEPS"

  AC_SUBST(C_FLAG_DEPS)

  AC_SUBST(CXX_FLAG_DEPS)

  # Debug symbols

  if test "x$TOOLCHAIN_TYPE" = xgcc; then

    if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then

      CFLAGS_DEBUG_SYMBOLS="-g1"

      CXXFLAGS_DEBUG_SYMBOLS="-g1"

    else

      CFLAGS_DEBUG_SYMBOLS="-g"

      CXXFLAGS_DEBUG_SYMBOLS="-g"

    fi

  elif test "x$TOOLCHAIN_TYPE" = xclang; then

    CFLAGS_DEBUG_SYMBOLS="-g"

    CXXFLAGS_DEBUG_SYMBOLS="-g"

  elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then

    CFLAGS_DEBUG_SYMBOLS="-g -xs"

    CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs"

  elif test "x$TOOLCHAIN_TYPE" = xxlc; then

    CFLAGS_DEBUG_SYMBOLS="-g"

    CXXFLAGS_DEBUG_SYMBOLS="-g"

  fi

  AC_SUBST(CFLAGS_DEBUG_SYMBOLS)

  AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS)

  # Optimization levels

  if test "x$TOOLCHAIN_TYPE" = xsolstudio; then

    CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil"

    if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then

      # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global?

      C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xalias_level=basic -xregs=no%frameptr"

      C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr"

      C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr"

      C_O_FLAG_NONE="-xregs=no%frameptr"

      CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr"

      CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr"

      CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr"

      CXX_O_FLAG_NONE="-xregs=no%frameptr"

      if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then

        C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium"

        CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium"

      fi

    elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then

      C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xalias_level=basic -xprefetch=auto,explicit -xchip=ultra"

      C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0"

      C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0"

      C_O_FLAG_NONE=""

      CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"

      CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"

      CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"

      CXX_O_FLAG_NONE=""

    fi

  else

    # The remaining toolchains share opt flags between CC and CXX;

    # setup for C and duplicate afterwards.

    if test "x$TOOLCHAIN_TYPE" = xgcc; then

      if test "x$OPENJDK_TARGET_OS" = xmacosx; then

        # On MacOSX we optimize for size, something

        # we should do for all platforms?

        C_O_FLAG_HIGHEST="-Os"

        C_O_FLAG_HI="-Os"

        C_O_FLAG_NORM="-Os"

      else

        C_O_FLAG_HIGHEST="-O3"

        C_O_FLAG_HI="-O3"

        C_O_FLAG_NORM="-O2"

      fi

    elif test "x$TOOLCHAIN_TYPE" = xclang; then

      if test "x$OPENJDK_TARGET_OS" = xmacosx; then

        # On MacOSX we optimize for size, something

        # we should do for all platforms?

        C_O_FLAG_HIGHEST="-Os"

        C_O_FLAG_HI="-Os"

        C_O_FLAG_NORM="-Os"

      else

        C_O_FLAG_HIGHEST="-O3"

        C_O_FLAG_HI="-O3"

        C_O_FLAG_NORM="-O2"

      fi

    elif test "x$TOOLCHAIN_TYPE" = xxlc; then

      C_O_FLAG_HIGHEST="-O3"

      C_O_FLAG_HI="-O3 -qstrict"

      C_O_FLAG_NORM="-O2"

    elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then

      C_O_FLAG_HIGHEST="-O2"

      C_O_FLAG_HI="-O1"

      C_O_FLAG_NORM="-O1"

      C_O_FLAG_NONE="-Od"

    fi

    CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST"

    CXX_O_FLAG_HI="$C_O_FLAG_HI"

    CXX_O_FLAG_NORM="$C_O_FLAG_NORM"

    CXX_O_FLAG_NONE="$C_O_FLAG_NONE"

  fi

  AC_SUBST(C_O_FLAG_HIGHEST)

  AC_SUBST(C_O_FLAG_HI)

  AC_SUBST(C_O_FLAG_NORM)

  AC_SUBST(C_O_FLAG_NONE)

  AC_SUBST(CXX_O_FLAG_HIGHEST)

  AC_SUBST(CXX_O_FLAG_HI)

  AC_SUBST(CXX_O_FLAG_NORM)

  AC_SUBST(CXX_O_FLAG_NONE)

])

AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK],

[

  # Special extras...

  if test "x$TOOLCHAIN_TYPE" = xsolstudio; then

    if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then

      CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl"

      CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl"

    fi

  elif test "x$TOOLCHAIN_TYPE" = xxlc; then

    LDFLAGS_JDK="${LDFLAGS_JDK} -q64 -brtl -bnolibpath -liconv -bexpall"

    CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"

    CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"

  fi

  if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then

    AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags])

  fi

  if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then

    AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags])

  fi