toolchain.m4 40.3 KB
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#
# Copyright (c) 2011, 2012, 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.
#

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# $1 = compiler to test (CC or CXX)
# $2 = human readable name of compiler (C or C++)
AC_DEFUN([TOOLCHAIN_CHECK_COMPILER_VERSION],
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[
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  COMPILER=[$]$1
  COMPILER_NAME=$2

  if test "x$OPENJDK_TARGET_OS" = xsolaris; then
    # Make sure we use the Sun Studio compiler and not gcc on Solaris, which won't work
    COMPILER_VERSION_TEST=`$COMPILER -V 2>&1 | $HEAD -n 1`
    $ECHO $COMPILER_VERSION_TEST | $GREP "^.*: Sun $COMPILER_NAME" > /dev/null
    if test $? -ne 0; then
      GCC_VERSION_TEST=`$COMPILER --version 2>&1 | $HEAD -n 1`
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      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required Sun Studio compiler.])
      AC_MSG_NOTICE([The result from running with -V was: "$COMPILER_VERSION_TEST" and with --version: "$GCC_VERSION_TEST"])
      AC_MSG_ERROR([Sun Studio compiler is required. Try setting --with-tools-dir.])
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    else
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      COMPILER_VERSION=`$ECHO $COMPILER_VERSION_TEST | $SED -n "s/^.*@<:@ ,\t@:>@$COMPILER_NAME@<:@ ,\t@:>@\(@<:@1-9@:>@\.@<:@0-9@:>@@<:@0-9@:>@*\).*/\1/p"`
      COMPILER_VENDOR="Sun Studio"
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    fi
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  elif test  "x$OPENJDK_TARGET_OS" = xwindows; then
    # First line typically looks something like:
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    # Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.40219.01 for 80x86
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    COMPILER_VERSION_TEST=`$COMPILER 2>&1 | $HEAD -n 1 | $TR -d '\r'`
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    COMPILER_VERSION=`$ECHO $COMPILER_VERSION_TEST | $SED -n "s/^.*Version \(@<:@1-9@:>@@<:@0-9.@:>@*\) .*/\1/p"`
    COMPILER_VENDOR="Microsoft CL.EXE"
    COMPILER_CPU_TEST=`$ECHO $COMPILER_VERSION_TEST | $SED -n "s/^.* for \(.*\)$/\1/p"`
    if test "x$OPENJDK_TARGET_CPU" = "xx86"; then
      if test "x$COMPILER_CPU_TEST" != "x80x86"; then
        AC_MSG_ERROR([Target CPU mismatch. We are building for $OPENJDK_TARGET_CPU but CL is for "$COMPILER_CPU_TEST"; expected "80x86".])
      fi
    elif test "x$OPENJDK_TARGET_CPU" = "xx86_64"; then
      if test "x$COMPILER_CPU_TEST" != "xx64"; then
        AC_MSG_ERROR([Target CPU mismatch. We are building for $OPENJDK_TARGET_CPU but CL is for "$COMPILER_CPU_TEST"; expected "x64".])
      fi
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    fi
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  else
    COMPILER_VERSION_TEST=`$COMPILER --version 2>&1 | $HEAD -n 1`
    # Check that this is likely to be GCC.
    $COMPILER --version 2>&1 | $GREP "Free Software Foundation" > /dev/null
    if test $? -ne 0; then
      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required GCC compiler.])
      AC_MSG_NOTICE([The result from running with --version was: "$COMPILER_VERSION_TEST"])
      AC_MSG_ERROR([GCC compiler is required. Try setting --with-tools-dir.])
    fi
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    # First line typically looks something like:
    # gcc (Ubuntu/Linaro 4.5.2-8ubuntu4) 4.5.2
    COMPILER_VERSION=`$ECHO $COMPILER_VERSION_TEST | $SED -n "s/^.* \(@<:@1-9@:>@@<:@0-9.@:>@*\)/\1/p"`
    COMPILER_VENDOR=`$ECHO $COMPILER_VERSION_TEST | $SED -n "s/^\(.*\) @<:@1-9@:>@@<:@0-9.@:>@*/\1/p"`
  fi
  # This sets CC_VERSION or CXX_VERSION. (This comment is a grep marker)
  $1_VERSION="$COMPILER_VERSION"
  # This sets CC_VENDOR or CXX_VENDOR. (This comment is a grep marker)
  $1_VENDOR="$COMPILER_VENDOR"

  AC_MSG_NOTICE([Using $COMPILER_VENDOR $COMPILER_NAME compiler version $COMPILER_VERSION (located at $COMPILER)])
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])

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AC_DEFUN_ONCE([TOOLCHAIN_SETUP_SYSROOT_AND_OUT_OPTIONS],
[
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  ###############################################################################
  #
  # Configure the development tool paths and potential sysroot.
  #
  AC_LANG(C++)

  # 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)'
  AC_SUBST(CC_OUT_OPTION)
  AC_SUBST(EXE_OUT_OPTION)
  AC_SUBST(LD_OUT_OPTION)
  AC_SUBST(AR_OUT_OPTION)
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])

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# $1 = compiler to test (CC or CXX)
# $2 = human readable name of compiler (C or C++)
# $3 = list of compiler names to search for
AC_DEFUN([TOOLCHAIN_FIND_COMPILER],
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[
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  COMPILER_NAME=$2

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  $1=
  # If TOOLS_DIR is set, check for all compiler names in there first
  # before checking the rest of the PATH.
  if test -n "$TOOLS_DIR"; then
    PATH_save="$PATH"
    PATH="$TOOLS_DIR"
    AC_PATH_PROGS(TOOLS_DIR_$1, $3)
    $1=$TOOLS_DIR_$1
    PATH="$PATH_save"
  fi

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  # AC_PATH_PROGS can't be run multiple times with the same variable,
  # so create a new name for this run.
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  if test "x[$]$1" = x; then
    AC_PATH_PROGS(POTENTIAL_$1, $3)
    $1=$POTENTIAL_$1
  fi
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  if test "x[$]$1" = x; then
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    HELP_MSG_MISSING_DEPENDENCY([devkit])
    AC_MSG_ERROR([Could not find a $COMPILER_NAME compiler. $HELP_MSG])
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  fi
  BASIC_FIXUP_EXECUTABLE($1)
  AC_MSG_CHECKING([resolved symbolic links for $1])
  TEST_COMPILER="[$]$1"
  BASIC_REMOVE_SYMBOLIC_LINKS(TEST_COMPILER)
  AC_MSG_RESULT([$TEST_COMPILER])
  AC_MSG_CHECKING([if $1 is disguised ccache])
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  COMPILER_BASENAME=`$BASENAME "$TEST_COMPILER"`
  if test "x$COMPILER_BASENAME" = "xccache"; then
    AC_MSG_RESULT([yes, trying to find proper $COMPILER_NAME compiler])
    # We /usr/lib/ccache in the path, so cc is a symlink to /usr/bin/ccache.
    # We want to control ccache invocation ourselves, so ignore this cc and try
    # searching again.

    # Remove the path to the fake ccache cc from the PATH
    RETRY_COMPILER_SAVED_PATH="$PATH"
    COMPILER_DIRNAME=`$DIRNAME [$]$1`
    PATH="`$ECHO $PATH | $SED -e "s,$COMPILER_DIRNAME,,g" -e "s,::,:,g" -e "s,^:,,g"`"

    # Try again looking for our compiler
    AC_CHECK_TOOLS(PROPER_COMPILER_$1, $3)
    BASIC_FIXUP_EXECUTABLE(PROPER_COMPILER_$1)
    PATH="$RETRY_COMPILER_SAVED_PATH"

    AC_MSG_CHECKING([for resolved symbolic links for $1])
    BASIC_REMOVE_SYMBOLIC_LINKS(PROPER_COMPILER_$1)
    AC_MSG_RESULT([$PROPER_COMPILER_$1])
    $1="$PROPER_COMPILER_$1"
  else
    AC_MSG_RESULT([no, keeping $1])
    $1="$TEST_COMPILER"
  fi
  TOOLCHAIN_CHECK_COMPILER_VERSION([$1], [$COMPILER_NAME])
])


AC_DEFUN([TOOLCHAIN_SETUP_PATHS],
[
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  if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
    TOOLCHAIN_SETUP_VISUAL_STUDIO_ENV
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    TOOLCHAIN_SETUP_MSVCR_DLL
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    BASIC_DEPRECATED_ARG_WITH([dxsdk])
    BASIC_DEPRECATED_ARG_WITH([dxsdk-lib])
    BASIC_DEPRECATED_ARG_WITH([dxsdk-include])
  fi

  AC_SUBST(MSVCR_DLL)

  # If --build AND --host is set, then the configure script will find any
  # cross compilation tools in the PATH. Cross compilation tools
  # follows the cross compilation standard where they are prefixed with ${host}.
  # For example the binary i686-sun-solaris2.10-gcc
  # will cross compile for i686-sun-solaris2.10
  # If neither of build and host is not set, then build=host and the
  # default compiler found in the path will be used.
  # Setting only --host, does not seem to be really supported.
  # Please set both --build and --host if you want to cross compile.

  if test "x$COMPILE_TYPE" = "xcross"; then
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    # Now we to find a C/C++ compiler that can build executables for the build
    # platform. We can't use the AC_PROG_CC macro, since it can only be used
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    # once. Also, we need to do this before adding a tools dir to the path,
    # otherwise we might pick up cross-compilers which don't use standard naming.
    # Otherwise, we'll set the BUILD_tools to the native tools, but that'll have
    # to wait until they are properly discovered.
    AC_PATH_PROGS(BUILD_CC, [cl cc gcc])
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    BASIC_FIXUP_EXECUTABLE(BUILD_CC)
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    AC_PATH_PROGS(BUILD_CXX, [cl CC g++])
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    BASIC_FIXUP_EXECUTABLE(BUILD_CXX)
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    AC_PATH_PROG(BUILD_LD, ld)
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    BASIC_FIXUP_EXECUTABLE(BUILD_LD)
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  fi
  AC_SUBST(BUILD_CC)
  AC_SUBST(BUILD_CXX)
  AC_SUBST(BUILD_LD)

  # If a devkit is found on the builddeps server, then prepend its path to the
  # PATH variable. If there are cross compilers available in the devkit, these
  # will be found by AC_PROG_CC et al.
  DEVKIT=
  BDEPS_CHECK_MODULE(DEVKIT, devkit, xxx,
      [
        # Found devkit
        PATH="$DEVKIT/bin:$PATH"
        SYS_ROOT="$DEVKIT/${rewritten_target}/sys-root"
        if test "x$x_includes" = "xNONE"; then
          x_includes="$SYS_ROOT/usr/include/X11"
        fi
        if test "x$x_libraries" = "xNONE"; then
          x_libraries="$SYS_ROOT/usr/lib"
        fi
      ],
      [])

  # Store the CFLAGS etal passed to the configure script.
  ORG_CFLAGS="$CFLAGS"
  ORG_CXXFLAGS="$CXXFLAGS"
  ORG_OBJCFLAGS="$OBJCFLAGS"

  # autoconf magic only relies on PATH, so update it if tools dir is specified
  OLD_PATH="$PATH"
  if test "x$TOOLS_DIR" != x; then
    PATH=$TOOLS_DIR:$PATH
  fi


  ### Locate C compiler (CC)

  # On windows, only cl.exe is supported.
  # On Solaris, cc is preferred to gcc.
  # Elsewhere, gcc is preferred to cc.

  if test "x$CC" != x; then
    COMPILER_CHECK_LIST="$CC"
  elif test "x$OPENJDK_TARGET_OS" = "xwindows"; then
    COMPILER_CHECK_LIST="cl"
  elif test "x$OPENJDK_TARGET_OS" = "xsolaris"; then
    COMPILER_CHECK_LIST="cc gcc"
  else
    COMPILER_CHECK_LIST="gcc cc"
  fi

  TOOLCHAIN_FIND_COMPILER([CC],[C],[$COMPILER_CHECK_LIST])
  # Now that we have resolved CC ourself, let autoconf have its go at it
  AC_PROG_CC([$CC])

  ### Locate C++ compiler (CXX)

  if test "x$CXX" != x; then
    COMPILER_CHECK_LIST="$CXX"
  elif test "x$OPENJDK_TARGET_OS" = "xwindows"; then
    COMPILER_CHECK_LIST="cl"
  elif test "x$OPENJDK_TARGET_OS" = "xsolaris"; then
    COMPILER_CHECK_LIST="CC g++"
  else
    COMPILER_CHECK_LIST="g++ CC"
  fi

  TOOLCHAIN_FIND_COMPILER([CXX],[C++],[$COMPILER_CHECK_LIST])
  # Now that we have resolved CXX ourself, let autoconf have its go at it
  AC_PROG_CXX([$CXX])

  ### Locate other tools

  if test "x$OPENJDK_TARGET_OS" = xmacosx; then
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    AC_PROG_OBJC
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    BASIC_FIXUP_EXECUTABLE(OBJC)
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  else
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    OBJC=
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  fi

  # Restore the flags to the user specified values.
  # This is necessary since AC_PROG_CC defaults CFLAGS to "-g -O2"
  CFLAGS="$ORG_CFLAGS"
  CXXFLAGS="$ORG_CXXFLAGS"
  OBJCFLAGS="$ORG_OBJCFLAGS"

  LD="$CC"
  LDEXE="$CC"
  LDCXX="$CXX"
  LDEXECXX="$CXX"
  AC_SUBST(LD)
  # LDEXE is the linker to use, when creating executables.
  AC_SUBST(LDEXE)
  # Linking C++ libraries.
  AC_SUBST(LDCXX)
  # Linking C++ executables.
  AC_SUBST(LDEXECXX)

  if test "x$OPENJDK_TARGET_OS" != xwindows; then
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    AC_CHECK_TOOL(AR, ar)
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    BASIC_FIXUP_EXECUTABLE(AR)
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  fi
  if test "x$OPENJDK_TARGET_OS" = xmacosx; then
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    ARFLAGS="-r"
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  else
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    ARFLAGS=""
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  fi
  AC_SUBST(ARFLAGS)

  # For hotspot, we need these in Windows mixed path; other platforms keep them the same
  HOTSPOT_CXX="$CXX"
  HOTSPOT_LD="$LD"
  AC_SUBST(HOTSPOT_CXX)
  AC_SUBST(HOTSPOT_LD)

  COMPILER_NAME=gcc
  COMPILER_TYPE=CC
  AS_IF([test "x$OPENJDK_TARGET_OS" = xwindows], [
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    # For now, assume that we are always compiling using cl.exe.
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    CC_OUT_OPTION=-Fo
    EXE_OUT_OPTION=-out:
    LD_OUT_OPTION=-out:
    AR_OUT_OPTION=-out:
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    # On Windows, reject /usr/bin/link (as determined in CYGWIN_LINK), which is a cygwin
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    # program for something completely different.
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    AC_CHECK_PROG([WINLD], [link],[link],,, [$CYGWIN_LINK])
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    # Since we must ignore the first found link, WINLD will contain
    # the full path to the link.exe program.
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    BASIC_FIXUP_EXECUTABLE(WINLD)
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    printf "Windows linker was found at $WINLD\n"
    AC_MSG_CHECKING([if the found link.exe is actually the Visual Studio linker])
    "$WINLD" --version > /dev/null
    if test $? -eq 0 ; then
      AC_MSG_RESULT([no])
      AC_MSG_ERROR([This is the Cygwin link tool. Please check your PATH and rerun configure.])
    else
      AC_MSG_RESULT([yes])
    fi
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    LD="$WINLD"
    LDEXE="$WINLD"
    LDCXX="$WINLD"
    LDEXECXX="$WINLD"

    AC_CHECK_PROG([MT], [mt], [mt],,, [/usr/bin/mt])
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    BASIC_FIXUP_EXECUTABLE(MT)
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    # The resource compiler
    AC_CHECK_PROG([RC], [rc], [rc],,, [/usr/bin/rc])
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    BASIC_FIXUP_EXECUTABLE(RC)

    # For hotspot, we need these in Windows mixed path,
    # so rewrite them all. Need added .exe suffix.
    HOTSPOT_CXX="$CXX.exe"
    HOTSPOT_LD="$LD.exe"
    HOTSPOT_MT="$MT.exe"
    HOTSPOT_RC="$RC.exe"
    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_CXX)
    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_LD)
    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_MT)
    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_RC)
    AC_SUBST(HOTSPOT_MT)
    AC_SUBST(HOTSPOT_RC)

    RC_FLAGS="-nologo -l 0x409 -r"
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    AS_IF([test "x$VARIANT" = xOPT], [
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    RC_FLAGS="$RC_FLAGS -d NDEBUG"
  ])

  # 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)\""

  # lib.exe is used to create static libraries.
  AC_CHECK_PROG([WINAR], [lib],[lib],,,)
  BASIC_FIXUP_EXECUTABLE(WINAR)
  AR="$WINAR"
  ARFLAGS="-nologo -NODEFAULTLIB:MSVCRT"

  AC_CHECK_PROG([DUMPBIN], [dumpbin], [dumpbin],,,)
      BASIC_FIXUP_EXECUTABLE(DUMPBIN)

      COMPILER_TYPE=CL
      CCXXFLAGS="$CCXXFLAGS -nologo"
  ])
  AC_SUBST(RC_FLAGS)
  AC_SUBST(COMPILER_TYPE)

  AC_PROG_CPP
  BASIC_FIXUP_EXECUTABLE(CPP)

  AC_PROG_CXXCPP
  BASIC_FIXUP_EXECUTABLE(CXXCPP)

  if test "x$COMPILE_TYPE" != "xcross"; then
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    # If we are not cross compiling, use the same compilers for
    # building the build platform executables. The cross-compilation
    # case needed to be done earlier, but this can only be done after
    # the native tools have been localized.
    BUILD_CC="$CC"
    BUILD_CXX="$CXX"
    BUILD_LD="$LD"
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  fi
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  # for solaris we really need solaris tools, and not gnu equivalent
  #   these seems to normally reside in /usr/ccs/bin so add that to path before
  #   starting to probe
  #
  #   NOTE: I add this /usr/ccs/bin after TOOLS but before OLD_PATH
  #         so that it can be overriden --with-tools-dir
  if test "x$OPENJDK_BUILD_OS" = xsolaris; then
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    PATH="${TOOLS_DIR}:/usr/ccs/bin:${OLD_PATH}"
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  fi
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  # Find the right assembler.
  if test "x$OPENJDK_TARGET_OS" = xsolaris; then
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    AC_PATH_PROG(AS, as)
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    BASIC_FIXUP_EXECUTABLE(AS)
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  else
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    AS="$CC -c"
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  fi
  AC_SUBST(AS)
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  if test "x$OPENJDK_TARGET_OS" = xsolaris; then
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    AC_PATH_PROG(NM, nm)
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    BASIC_FIXUP_EXECUTABLE(NM)
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    AC_PATH_PROG(GNM, gnm)
    BASIC_FIXUP_EXECUTABLE(GNM)
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    AC_PATH_PROG(STRIP, strip)
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    BASIC_FIXUP_EXECUTABLE(STRIP)
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    AC_PATH_PROG(MCS, mcs)
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    BASIC_FIXUP_EXECUTABLE(MCS)
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  elif test "x$OPENJDK_TARGET_OS" != xwindows; then
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    AC_CHECK_TOOL(NM, nm)
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    BASIC_FIXUP_EXECUTABLE(NM)
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    GNM="$NM"
    AC_SUBST(GNM)
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    AC_CHECK_TOOL(STRIP, strip)
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    BASIC_FIXUP_EXECUTABLE(STRIP)
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  fi
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  # objcopy is used for moving debug symbols to separate files when
  # full debug symbols are enabled.
  if test "x$OPENJDK_TARGET_OS" = xsolaris || test "x$OPENJDK_TARGET_OS" = xlinux; then
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    AC_CHECK_TOOLS(OBJCOPY, [gobjcopy objcopy])
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    # Only call fixup if objcopy was found.
    if test -n "$OBJCOPY"; then
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      BASIC_FIXUP_EXECUTABLE(OBJCOPY)
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    fi
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  fi
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  AC_CHECK_TOOLS(OBJDUMP, [gobjdump objdump])
  if test "x$OBJDUMP" != x; then
    # Only used for compare.sh; we can live without it. BASIC_FIXUP_EXECUTABLE bails if argument is missing.
    BASIC_FIXUP_EXECUTABLE(OBJDUMP)
  fi
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  if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
    AC_PATH_PROG(LIPO, lipo)
    BASIC_FIXUP_EXECUTABLE(LIPO)
  fi
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  TOOLCHAIN_SETUP_JTREG
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  # Restore old path without tools dir
  PATH="$OLD_PATH"
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])


AC_DEFUN_ONCE([TOOLCHAIN_SETUP_COMPILER_FLAGS_FOR_LIBS],
[

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  ###############################################################################
  #
  # How to compile shared libraries.
  #
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  if test "x$GCC" = xyes; then
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    COMPILER_NAME=gcc
    PICFLAG="-fPIC"
    LIBRARY_PREFIX=lib
    SHARED_LIBRARY='lib[$]1.so'
    STATIC_LIBRARY='lib[$]1.a'
    SHARED_LIBRARY_FLAGS="-shared"
    SHARED_LIBRARY_SUFFIX='.so'
    STATIC_LIBRARY_SUFFIX='.a'
    OBJ_SUFFIX='.o'
    EXE_SUFFIX=''
    SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1'
    SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1'
    C_FLAG_REORDER=''
    CXX_FLAG_REORDER=''
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    SET_SHARED_LIBRARY_ORIGIN='-Xlinker -z -Xlinker origin -Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1'
    SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1'
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    LD="$CC"
    LDEXE="$CC"
    LDCXX="$CXX"
    LDEXECXX="$CXX"
    POST_STRIP_CMD="$STRIP -g"

    # Linking is different on MacOSX
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    if test "x$OPENJDK_TARGET_OS" = xmacosx; then
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      # Might change in the future to clang.
      COMPILER_NAME=gcc
      SHARED_LIBRARY='lib[$]1.dylib'
      SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"
      SHARED_LIBRARY_SUFFIX='.dylib'
      EXE_SUFFIX=''
      SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1'
      SET_SHARED_LIBRARY_MAPFILE=''
      SET_SHARED_LIBRARY_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.'
      SET_EXECUTABLE_ORIGIN="$SET_SHARED_LIBRARY_ORIGIN"
      POST_STRIP_CMD="$STRIP -S"
531
    fi
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  else
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    if test "x$OPENJDK_TARGET_OS" = xsolaris; then
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      # If it is not gcc, then assume it is the Oracle Solaris Studio Compiler
      COMPILER_NAME=ossc
      PICFLAG="-KPIC"
      LIBRARY_PREFIX=lib
      SHARED_LIBRARY='lib[$]1.so'
      STATIC_LIBRARY='lib[$]1.a'
      SHARED_LIBRARY_FLAGS="-G"
      SHARED_LIBRARY_SUFFIX='.so'
      STATIC_LIBRARY_SUFFIX='.a'
      OBJ_SUFFIX='.o'
      EXE_SUFFIX=''
      SET_SHARED_LIBRARY_NAME=''
      SET_SHARED_LIBRARY_MAPFILE='-M[$]1'
      C_FLAG_REORDER='-xF'
      CXX_FLAG_REORDER='-xF'
      SET_SHARED_LIBRARY_ORIGIN='-R\$$$$ORIGIN[$]1'
      SET_EXECUTABLE_ORIGIN="$SET_SHARED_LIBRARY_ORIGIN"
      CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__"
      CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__"
      CFLAGS_JDKLIB_EXTRA='-xstrconst'
      POST_STRIP_CMD="$STRIP -x"
      POST_MCS_CMD="$MCS -d -a \"JDK $FULL_VERSION\""
556
    fi
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    if test "x$OPENJDK_TARGET_OS" = xwindows; then
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      # If it is not gcc, then assume it is the MS Visual Studio compiler
      COMPILER_NAME=cl
      PICFLAG=""
      LIBRARY_PREFIX=
      SHARED_LIBRARY='[$]1.dll'
      STATIC_LIBRARY='[$]1.lib'
      SHARED_LIBRARY_FLAGS="-LD"
      SHARED_LIBRARY_SUFFIX='.dll'
      STATIC_LIBRARY_SUFFIX='.lib'
      OBJ_SUFFIX='.obj'
      EXE_SUFFIX='.exe'
      SET_SHARED_LIBRARY_NAME=''
      SET_SHARED_LIBRARY_MAPFILE=''
      SET_SHARED_LIBRARY_ORIGIN=''
      SET_EXECUTABLE_ORIGIN=''
573
    fi
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  fi

  AC_SUBST(COMPILER_NAME)
  AC_SUBST(OBJ_SUFFIX)
  AC_SUBST(SHARED_LIBRARY)
  AC_SUBST(STATIC_LIBRARY)
  AC_SUBST(LIBRARY_PREFIX)
  AC_SUBST(SHARED_LIBRARY_SUFFIX)
  AC_SUBST(STATIC_LIBRARY_SUFFIX)
  AC_SUBST(EXE_SUFFIX)
  AC_SUBST(SHARED_LIBRARY_FLAGS)
  AC_SUBST(SET_SHARED_LIBRARY_NAME)
  AC_SUBST(SET_SHARED_LIBRARY_MAPFILE)
  AC_SUBST(C_FLAG_REORDER)
  AC_SUBST(CXX_FLAG_REORDER)
  AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)
  AC_SUBST(SET_EXECUTABLE_ORIGIN)
  AC_SUBST(POST_STRIP_CMD)
  AC_SUBST(POST_MCS_CMD)

  # The (cross) compiler is now configured, we can now test capabilities
  # of the target platform.
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])

AC_DEFUN_ONCE([TOOLCHAIN_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION],
[

601 602 603 604 605
  ###############################################################################
  #
  # Setup the opt flags for different compilers
  # and different operating systems.
  #
606

607 608 609 610
  #
  # NOTE: check for -mstackrealign needs to be below potential addition of -m32
  #
  if test "x$OPENJDK_TARGET_CPU_BITS" = x32 && test "x$OPENJDK_TARGET_OS" = xmacosx; then
611 612 613 614 615
    # On 32-bit MacOSX the OS requires C-entry points to be 16 byte aligned.
    # While waiting for a better solution, the current workaround is to use -mstackrealign.
    CFLAGS="$CFLAGS -mstackrealign"
    AC_MSG_CHECKING([if 32-bit compiler supports -mstackrealign])
    AC_LINK_IFELSE([AC_LANG_SOURCE([[int main() { return 0; }]])],
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        [
          AC_MSG_RESULT([yes])
        ],
        [
          AC_MSG_RESULT([no])
          AC_MSG_ERROR([The selected compiler $CXX does not support -mstackrealign! Try to put another compiler in the path.])
        ]
    )
  fi

  C_FLAG_DEPS="-MMD -MF"
  CXX_FLAG_DEPS="-MMD -MF"

  case $COMPILER_TYPE in
    CC )
      case $COMPILER_NAME in
        gcc )
          case $OPENJDK_TARGET_OS in
            macosx )
              # On MacOSX we optimize for size, something
              # we should do for all platforms?
              C_O_FLAG_HI="-Os"
              C_O_FLAG_NORM="-Os"
              C_O_FLAG_NONE=""
              ;;
            *)
              C_O_FLAG_HI="-O3"
              C_O_FLAG_NORM="-O2"
              C_O_FLAG_NONE="-O0"
              ;;
          esac
          CXX_O_FLAG_HI="$C_O_FLAG_HI"
          CXX_O_FLAG_NORM="$C_O_FLAG_NORM"
          CXX_O_FLAG_NONE="$C_O_FLAG_NONE"
          CFLAGS_DEBUG_SYMBOLS="-g"
          CXXFLAGS_DEBUG_SYMBOLS="-g"
          if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then
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            CFLAGS_DEBUG_SYMBOLS="-g1"
            CXXFLAGS_DEBUG_SYMBOLS="-g1"
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          fi
          ;;
        ossc )
          #
          # Forte has different names for this with their C++ compiler...
          #
          C_FLAG_DEPS="-xMMD -xMF"
          CXX_FLAG_DEPS="-xMMD -xMF"

          # Extra options used with 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.
          #
          # Use non-standard floating point mode (not IEEE 754)
          CC_HIGHEST="$CC_HIGHEST -fns"
          # Do some simplification of floating point arithmetic (not IEEE 754)
          CC_HIGHEST="$CC_HIGHEST -fsimple"
          # Use single precision floating point with 'float'
          CC_HIGHEST="$CC_HIGHEST -fsingle"
          # Assume memory references via basic pointer types do not alias
          #   (Source with excessing pointer casting and data access with mixed
          #    pointer types are not recommended)
          CC_HIGHEST="$CC_HIGHEST -xalias_level=basic"
          # Use intrinsic or inline versions for math/std functions
          #   (If you expect perfect errno behavior, do not use this)
          CC_HIGHEST="$CC_HIGHEST -xbuiltin=%all"
          # Loop data dependency optimizations (need -xO3 or higher)
          CC_HIGHEST="$CC_HIGHEST -xdepend"
          # 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)
          CC_HIGHEST="$CC_HIGHEST -xrestrict"
          # Inline some library routines
          #   (If you expect perfect errno behavior, do not use this)
          CC_HIGHEST="$CC_HIGHEST -xlibmil"
          # Use optimized math routines
          #   (If you expect perfect errno behavior, do not use this)
          #  Can cause undefined external on Solaris 8 X86 on __sincos, removing for now
          #CC_HIGHEST="$CC_HIGHEST -xlibmopt"

          if test "x$OPENJDK_TARGET_CPU" = xsparc; then
            CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s"
            CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s"
          fi
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702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729
          case $OPENJDK_TARGET_CPU_ARCH in
            x86)
              C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -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" = xx86; then
                C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium"
                CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium"
              fi
              ;;
            sparc)
              CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
              CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
              C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -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=""
              ;;
          esac
730

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          CFLAGS_DEBUG_SYMBOLS="-g -xs"
          CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs"
      esac
      ;;
    CL )
      C_O_FLAG_HIGHEST="-O2"
      C_O_FLAG_HI="-O1"
      C_O_FLAG_NORM="-O1"
      C_O_FLAG_NONE="-Od"
      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"
      ;;
  esac
746

747 748 749
  if test -z "$C_O_FLAG_HIGHEST"; then
    C_O_FLAG_HIGHEST="$C_O_FLAG_HI"
  fi
750

751 752 753
  if test -z "$CXX_O_FLAG_HIGHEST"; then
    CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HI"
  fi
754

755 756 757 758 759 760 761 762 763 764 765
  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_SUBST(C_FLAG_DEPS)
  AC_SUBST(CXX_FLAG_DEPS)
])
766

767 768
AC_DEFUN_ONCE([TOOLCHAIN_SETUP_COMPILER_FLAGS_FOR_JDK],
[
769

770 771 772
  if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then
    AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags])
  fi
773

774 775 776
  if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then
    AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags])
  fi
777

778 779 780
  if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then
    AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags])
  fi
781

782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817
  AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags],
      [extra flags to be used when compiling jdk c-files])])

  AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags],
      [extra flags to be used when compiling jdk c++-files])])

  AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags],
      [extra flags to be used when linking jdk])])

  CFLAGS_JDK="${CFLAGS_JDK} $with_extra_cflags"
  CXXFLAGS_JDK="${CXXFLAGS_JDK} $with_extra_cxxflags"
  LDFLAGS_JDK="${LDFLAGS_JDK} $with_extra_ldflags"

  # Hotspot needs these set in their legacy form
  LEGACY_EXTRA_CFLAGS=$with_extra_cflags
  LEGACY_EXTRA_CXXFLAGS=$with_extra_cxxflags
  LEGACY_EXTRA_LDFLAGS=$with_extra_ldflags

  AC_SUBST(LEGACY_EXTRA_CFLAGS)
  AC_SUBST(LEGACY_EXTRA_CXXFLAGS)
  AC_SUBST(LEGACY_EXTRA_LDFLAGS)

  ###############################################################################
  #
  # Now setup the CFLAGS and LDFLAGS for the JDK build.
  # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build.
  #
  case $COMPILER_NAME in
    gcc )
      CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -W -Wall -Wno-unused -Wno-parentheses \
      -pipe \
      -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"
      case $OPENJDK_TARGET_CPU_ARCH in
        arm )
          # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing
          CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
818
          ;;
819 820
        ppc )
          # on ppc we don't prevent gcc to omit frame pointer nor strict-aliasing
821
          ;;
822 823 824
        * )
          CCXXFLAGS_JDK="$CCXXFLAGS_JDK -fno-omit-frame-pointer"
          CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
825
          ;;
826 827 828 829 830 831 832 833 834 835
      esac
      ;;
    ossc )
      CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS"
      case $OPENJDK_TARGET_CPU_ARCH in
        x86 )
          CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB"
          CFLAGS_JDK="$CFLAGS_JDK -erroff=E_BAD_PRAGMA_PACK_VALUE"
          ;;
      esac
836

837 838
      CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal"
      CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib"
839

840 841 842 843 844 845 846 847 848 849 850
      LDFLAGS_JDK="$LDFLAGS_JDK -z defs -xildoff -ztext"
      LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib"
      ;;
    cl )
      CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -Zi -MD -Zc:wchar_t- -W3 -wd4800 \
      -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB -DWIN32_LEAN_AND_MEAN \
      -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \
      -DWIN32 -DIAL"
      case $OPENJDK_TARGET_CPU in
        x86 )
          CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_X86_ -Dx86"
851
          ;;
852 853
        x86_64 )
          CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_AMD64_ -Damd64"
854
          ;;
855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881
      esac
      ;;
  esac

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

  # Adjust flags according to debug level.
  case $DEBUG_LEVEL in
    fastdebug )
      CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"
      CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"
      C_O_FLAG_HI="$C_O_FLAG_NORM"
      C_O_FLAG_NORM="$C_O_FLAG_NORM"
      CXX_O_FLAG_HI="$CXX_O_FLAG_NORM"
      CXX_O_FLAG_NORM="$CXX_O_FLAG_NORM"
      JAVAC_FLAGS="$JAVAC_FLAGS -g"
      ;;
    slowdebug )
      CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"
      CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"
      C_O_FLAG_HI="$C_O_FLAG_NONE"
      C_O_FLAG_NORM="$C_O_FLAG_NONE"
      CXX_O_FLAG_HI="$CXX_O_FLAG_NONE"
      CXX_O_FLAG_NORM="$CXX_O_FLAG_NONE"
      JAVAC_FLAGS="$JAVAC_FLAGS -g"
      ;;
  esac
882

883
  CCXXFLAGS_JDK="$CCXXFLAGS_JDK $ADD_LP64"
884

885 886 887
  # The package path is used only on macosx?
  PACKAGE_PATH=/opt/local
  AC_SUBST(PACKAGE_PATH)
888

889
  if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then
890 891 892 893
    # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the
    #   Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN
    #   (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h).
    #   Note: -Dmacro         is the same as    #define macro 1
894
    #         -Dmacro=        is the same as    #define macro
895
    if test "x$OPENJDK_TARGET_OS" = xsolaris; then
896
      CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN="
897
    else
898
      CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN"
899
    fi
900
  else
901
    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_BIG_ENDIAN"
902 903
  fi
  if test "x$OPENJDK_TARGET_OS" = xlinux; then
904
    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DLINUX"
905 906
  fi
  if test "x$OPENJDK_TARGET_OS" = xwindows; then
907
    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DWINDOWS"
908 909
  fi
  if test "x$OPENJDK_TARGET_OS" = xsolaris; then
910
    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DSOLARIS"
911 912
  fi
  if test "x$OPENJDK_TARGET_OS" = xmacosx; then
913
    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DMACOSX -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT"
914
    # Setting these parameters makes it an error to link to macosx APIs that are
915 916 917 918 919 920 921 922 923 924
    # newer than the given OS version and makes the linked binaries compatible even
    # if built on a newer version of the OS.
    # The expected format is X.Y.Z
    MACOSX_VERSION_MIN=10.7.0
    AC_SUBST(MACOSX_VERSION_MIN)
    # The macro takes the version with no dots, ex: 1070
    # Let the flags variables get resolved in make for easier override on make
    # command line.
    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
    LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
925 926
  fi
  if test "x$OPENJDK_TARGET_OS" = xbsd; then
927
    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DBSD -D_ALLBSD_SOURCE"
928 929
  fi
  if test "x$DEBUG_LEVEL" = xrelease; then
930
    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DNDEBUG"
931 932 933 934
  if test "x$OPENJDK_TARGET_OS" = xsolaris; then
    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DTRIMMED"
  fi
  else
935
    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DDEBUG"
936 937 938 939 940 941 942 943 944
  fi

  CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY"
  CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DRELEASE='\"$RELEASE\"'"

  CCXXFLAGS_JDK="$CCXXFLAGS_JDK \
      -I${JDK_OUTPUTDIR}/include \
      -I${JDK_OUTPUTDIR}/include/$OPENJDK_TARGET_OS \
      -I${JDK_TOPDIR}/src/share/javavm/export \
945
      -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_EXPORT_DIR/javavm/export \
946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965
      -I${JDK_TOPDIR}/src/share/native/common \
      -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_API_DIR/native/common"

  # The shared libraries are compiled using the picflag.
  CFLAGS_JDKLIB="$CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
  CXXFLAGS_JDKLIB="$CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA "

  # Executable flags
  CFLAGS_JDKEXE="$CCXXFLAGS_JDK $CFLAGS_JDK"
  CXXFLAGS_JDKEXE="$CCXXFLAGS_JDK $CXXFLAGS_JDK"

  # Now this is odd. The JDK native libraries have to link against libjvm.so
  # On 32-bit machines there is normally two distinct libjvm.so:s, client and server.
  # Which should we link to? Are we lucky enough that the binary api to the libjvm.so library
  # is identical for client and server? Yes. Which is picked at runtime (client or server)?
  # Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following
  # libraries will link to whatever is in memory. Yuck.
  #
  # Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh.
  if test "x$COMPILER_NAME" = xcl; then
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    LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no"
967
    if test "x$OPENJDK_TARGET_CPU" = xx86; then
968
      LDFLAGS_JDK="$LDFLAGS_JDK -safeseh"
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    fi
    # TODO: make -debug optional "--disable-full-debug-symbols"
    LDFLAGS_JDK="$LDFLAGS_JDK -debug"
    LDFLAGS_JDKLIB="${LDFLAGS_JDK} -dll -libpath:${JDK_OUTPUTDIR}/lib"
    LDFLAGS_JDKLIB_SUFFIX=""
    if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then
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      LDFLAGS_STACK_SIZE=1048576
976
    else
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      LDFLAGS_STACK_SIZE=327680
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    fi
    LDFLAGS_JDKEXE="${LDFLAGS_JDK} /STACK:$LDFLAGS_STACK_SIZE"
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  else
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ohair 已提交
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    if test "x$COMPILER_NAME" = xgcc; then
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      # If this is a --hash-style=gnu system, use --hash-style=both, why?
      HAS_GNU_HASH=`$CC -dumpspecs 2>/dev/null | $GREP 'hash-style=gnu'`
      if test -n "$HAS_GNU_HASH"; then
        LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker --hash-style=both "
      fi
      if test "x$OPENJDK_TARGET_OS" = xlinux; then
        # And since we now know that the linker is gnu, then add -z defs, to forbid
        # undefined symbols in object files.
        LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -z -Xlinker defs"
        if test "x$DEBUG_LEVEL" = "xrelease"; then
          # When building release libraries, tell the linker optimize them.
          # Should this be supplied to the OSS linker as well?
          LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -O1"
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        fi
996
      fi
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    fi
    LDFLAGS_JDKLIB="${LDFLAGS_JDK} $SHARED_LIBRARY_FLAGS \
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        -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}"
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    # On some platforms (mac) the linker warns about non existing -L dirs.
1002
    # Add server first if available. Linking aginst client does not always produce the same results.
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    # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1.
    # Default to server for other variants.
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    if test "x$JVM_VARIANT_SERVER" = xtrue; then
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      LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server"
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    elif test "x$JVM_VARIANT_CLIENT" = xtrue; then
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      LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/client"
1009
    elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then
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      LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/minimal"
1011
    else
1012
      LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server"
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    fi

1015
    LDFLAGS_JDKLIB_SUFFIX="-ljava -ljvm"
1016
    if test "x$COMPILER_NAME" = xossc; then
1017
      LDFLAGS_JDKLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX -lc"
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    fi

    LDFLAGS_JDKEXE="${LDFLAGS_JDK}"
1021
    if test "x$OPENJDK_TARGET_OS" = xlinux; then
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      LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Xlinker --allow-shlib-undefined"
1023
    fi
1024
  fi
1025

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  AC_SUBST(CFLAGS_JDKLIB)
  AC_SUBST(CFLAGS_JDKEXE)
1028

1029 1030
  AC_SUBST(CXXFLAGS_JDKLIB)
  AC_SUBST(CXXFLAGS_JDKEXE)
1031

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  AC_SUBST(LDFLAGS_JDKLIB)
  AC_SUBST(LDFLAGS_JDKEXE)
  AC_SUBST(LDFLAGS_JDKLIB_SUFFIX)
  AC_SUBST(LDFLAGS_JDKEXE_SUFFIX)
  AC_SUBST(LDFLAGS_CXX_JDK)
1037
])
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# TOOLCHAIN_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
#                                   [RUN-IF-FALSE])
# ------------------------------------------------------------
# Check that the c and c++ compilers support an argument
AC_DEFUN([TOOLCHAIN_COMPILER_CHECK_ARGUMENTS],
[
  AC_MSG_CHECKING([if compiler supports "$1"])
  supports=yes

  saved_cflags="$CFLAGS"
  CFLAGS="$CFLAGS $1"
  AC_LANG_PUSH([C])
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  AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 
      [supports=no])
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  AC_LANG_POP([C])
  CFLAGS="$saved_cflags"

  saved_cxxflags="$CXXFLAGS"
  CXXFLAGS="$CXXFLAG $1"
  AC_LANG_PUSH([C++])
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  AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 
      [supports=no])
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  AC_LANG_POP([C++])
  CXXFLAGS="$saved_cxxflags"

  AC_MSG_RESULT([$supports])
  if test "x$supports" = "xyes" ; then
    m4_ifval([$2], [$2], [:])
  else
    m4_ifval([$3], [$3], [:])
  fi
])

AC_DEFUN_ONCE([TOOLCHAIN_SETUP_COMPILER_FLAGS_MISC],
[
  # Some Zero and Shark settings.
  # ZERO_ARCHFLAG tells the compiler which mode to build for
  case "${OPENJDK_TARGET_CPU}" in
    s390)
      ZERO_ARCHFLAG="-m31"
      ;;
    *)
      ZERO_ARCHFLAG="-m${OPENJDK_TARGET_CPU_BITS}"
  esac
  TOOLCHAIN_COMPILER_CHECK_ARGUMENTS([$ZERO_ARCHFLAG], [], [ZERO_ARCHFLAG=""])
  AC_SUBST(ZERO_ARCHFLAG)

  # Check that the compiler supports -mX flags
  # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does
  TOOLCHAIN_COMPILER_CHECK_ARGUMENTS([-m${OPENJDK_TARGET_CPU_BITS}],
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      [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true],
      [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false])
1092 1093
  AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG)
])
1094

1095 1096 1097 1098
# Setup the JTREG paths
AC_DEFUN_ONCE([TOOLCHAIN_SETUP_JTREG],
[
  AC_ARG_WITH(jtreg, [AS_HELP_STRING([--with-jtreg],
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      [Regression Test Harness @<:@probed@:>@])],
      [],
      [with_jtreg=no])
1102 1103 1104 1105

  if test "x$with_jtreg" = xno; then
    # jtreg disabled
    AC_MSG_CHECKING([for jtreg])
1106
    AC_MSG_RESULT(no)
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  else
    if test "x$with_jtreg" != xyes; then
      # with path specified.
      JT_HOME="$with_jtreg"
    fi

    if test "x$JT_HOME" != x; then
      AC_MSG_CHECKING([for jtreg])

      # use JT_HOME enviroment var.
      BASIC_FIXUP_PATH([JT_HOME])

      # jtreg win32 script works for everybody
      JTREGEXE="$JT_HOME/win32/bin/jtreg"

      if test ! -f "$JTREGEXE"; then
        AC_MSG_ERROR([JTReg executable does not exist: $JTREGEXE])
      fi

      AC_MSG_RESULT($JTREGEXE)
    else
      # try to find jtreg on path
      BASIC_REQUIRE_PROG(JTREGEXE, jtreg)
      JT_HOME="`$DIRNAME $JTREGEXE`"
    fi
  fi

  AC_SUBST(JT_HOME)
  AC_SUBST(JTREGEXE)
1136
])