#

# 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.

#

AC_DEFUN([ADD_JVM_ARG_IF_OK],

[

    # Test if $1 is a valid argument to $3 (often is $JAVA passed as $3)

    # If so, then append $1 to $2

    FOUND_WARN=`$3 $1 -version 2>&1 | grep -i warn`

    FOUND_VERSION=`$3 $1 -version 2>&1 | grep " version \""`

    if test "x$FOUND_VERSION" != x && test "x$FOUND_WARN" = x; then

        $2="[$]$2 $1"

    fi

])

AC_DEFUN([SET_FULL_PATH],

[

    # Translate "gcc -E" into "`which gcc` -E" ie

    # extract the full path to the binary and at the

    # same time maintain any arguments passed to it.

    # The command MUST exist in the path, or else!

    tmp="[$]$1"

    car="${tmp%% *}"

    tmp="[$]$1 EOL"

    cdr="${tmp#* }"

    # On windows we want paths without spaces.

    if test "x$OPENJDK_BUILD_OS" = "xwindows"; then

        SET_FULL_PATH_SPACESAFE(car)

    else

        # "which" is not portable, but is used here

        # because we know that the command exists!

        car=`which $car`

    fi

    if test "x$cdr" != xEOL; then

        $1="$car ${cdr% *}"

    else

        $1="$car"

    fi

])

AC_DEFUN([SPACESAFE],

[

    # Fail with message $2 if var $1 contains a path with no spaces in it.

    # Unless on Windows, where we can rewrite the path.

    HAS_SPACE=`echo "[$]$1" | grep " "`

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

        if test "x$OPENJDK_BUILD_OS" = "xwindows"; then

            # First convert it to DOS-style, short mode (no spaces)

            $1=`$CYGPATH -s -m -a "[$]$1"`

            # Now it's case insensitive; let's make it lowercase to improve readability

            $1=`$ECHO "[$]$1" | $TR 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvqxyz'`

            # Now convert it back to Unix-stile (cygpath)

            $1=`$CYGPATH -u "[$]$1"`

        else

            AC_MSG_ERROR([You cannot have spaces in $2! "[$]$1"])

        fi

    fi

])

AC_DEFUN([SET_FULL_PATH_SPACESAFE],

[

    # Translate long cygdrive or C:\sdfsf path

    # into a short mixed mode path that has no

    # spaces in it.

    tmp="[$]$1"

    if test "x$OPENJDK_BUILD_OS" = "xwindows"; then

        tmp=`$CYGPATH -u "[$]$1"`

        tmp=`which "$tmp"`

        # If file exists with .exe appended, that's the real filename

        # and cygpath needs that to convert to short style path.

        if test -f "${tmp}.exe"; then

           tmp="${tmp}.exe"

        elif test -f "${tmp}.cmd"; then

           tmp="${tmp}.cmd"

        fi

        # Convert to C:/ mixed style path without spaces.

         tmp=`$CYGPATH -s -m "$tmp"`

    fi

    $1="$tmp"

])

AC_DEFUN([REMOVE_SYMBOLIC_LINKS],

[

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

        # Follow a chain of symbolic links. Use readlink

        # where it exists, else fall back to horribly

        # complicated shell code.

        AC_PATH_PROG(READLINK, readlink)

        if test "x$READLINK_TESTED" != yes; then

            # On MacOSX there is a readlink tool with a different

            # purpose than the GNU readlink tool. Check the found readlink.

            ISGNU=`$READLINK --help 2>&1 | grep GNU`

            if test "x$ISGNU" = x; then

                 # A readlink that we do not know how to use.

                 # Are there other non-GNU readlinks out there?

                 READLINK_TESTED=yes

                 READLINK=

            fi

        fi

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

            $1=`$READLINK -f [$]$1`

        else

            STARTDIR=$PWD

            COUNTER=0

            DIR=`dirname [$]$1`

            FIL=`basename [$]$1`

            while test $COUNTER -lt 20; do

                ISLINK=`ls -l $DIR/$FIL | grep '\->' | sed -e 's/.*-> \(.*\)/\1/'`

                if test "x$ISLINK" == x; then

                    # This is not a symbolic link! We are done!

                    break

                fi

                # The link might be relative! We have to use cd to travel safely.

                cd $DIR

                cd `dirname $ISLINK`

                DIR=`pwd`

                FIL=`basename $ISLINK`

                let COUNTER=COUNTER+1

            done

            cd $STARTDIR

            $1=$DIR/$FIL

        fi

    fi

])

AC_DEFUN_ONCE([BASIC_INIT],

[

# Save the original command line. This is passed to us by the wrapper configure script.

AC_SUBST(CONFIGURE_COMMAND_LINE)

DATE_WHEN_CONFIGURED=`LANG=C date`

AC_SUBST(DATE_WHEN_CONFIGURED)

])

# Setup basic configuration paths, and platform-specific stuff related to PATHs.

AC_DEFUN_ONCE([BASIC_SETUP_PATHS],

[

# Locate the directory of this script.

SCRIPT="[$]0"

REMOVE_SYMBOLIC_LINKS(SCRIPT)

AUTOCONF_DIR=`dirname [$]0`

# Where is the source? It is located two levels above the configure script.

CURDIR="$PWD"

cd "$AUTOCONF_DIR/../.."

SRC_ROOT="`pwd`"

if test "x$OPENJDK_BUILD_OS" = "xwindows"; then

    SRC_ROOT_LENGTH=`pwd|wc -m`

    if test $SRC_ROOT_LENGTH -gt 100; then

        AC_MSG_ERROR([Your base path is too long. It is $SRC_ROOT_LENGTH characters long, but only 100 is supported])

    fi

fi

AC_SUBST(SRC_ROOT)

cd "$CURDIR"

SPACESAFE(SRC_ROOT,[the path to the source root])

SPACESAFE(CURDIR,[the path to the current directory])

if test "x$OPENJDK_BUILD_OS" = "xsolaris"; then

    # Add extra search paths on solaris for utilities like ar and as etc...

    PATH="$PATH:/usr/ccs/bin:/usr/sfw/bin:/opt/csw/bin"

fi

# For cygwin we need cygpath first, since it is used everywhere.

AC_PATH_PROG(CYGPATH, cygpath)

PATH_SEP=":"

if test "x$OPENJDK_BUILD_OS" = "xwindows"; then

    if test "x$CYGPATH" = x; then

        AC_MSG_ERROR([Something is wrong with your cygwin installation since I cannot find cygpath.exe in your path])

    fi

    PATH_SEP=";"

fi

AC_SUBST(PATH_SEP)

# You can force the sys-root if the sys-root encoded into the cross compiler tools

# is not correct.

AC_ARG_WITH(sys-root, [AS_HELP_STRING([--with-sys-root],

  [pass this sys-root to the compilers and linker (useful if the sys-root encoded in

   the cross compiler tools is incorrect)])])

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

  SYS_ROOT=$with_sys_root

else

  SYS_ROOT=/

fi

AC_SUBST(SYS_ROOT)

AC_ARG_WITH([tools-dir], [AS_HELP_STRING([--with-tools-dir],

  [search this directory for (cross-compiling) compilers and tools])], [TOOLS_DIR=$with_tools_dir])

AC_ARG_WITH([devkit], [AS_HELP_STRING([--with-devkit],

  [use this directory as base for tools-dir and sys-root (for cross-compiling)])],

  [

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

      AC_MSG_ERROR([Cannot specify both --with-devkit and --with-sys-root at the same time])

    fi

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

      AC_MSG_ERROR([Cannot specify both --with-devkit and --with-tools-dir at the same time])

    fi

    TOOLS_DIR=$with_devkit/bin

    SYS_ROOT=$with_devkit/$host_alias/libc

  ])

])

AC_DEFUN_ONCE([BASIC_SETUP_OUTPUT_DIR],

[

AC_ARG_WITH(conf-name, [AS_HELP_STRING([--with-conf-name],

	[use this as the name of the configuration, overriding the generated default])],

        [ CONF_NAME=${with_conf_name} ])

# Test from where we are running configure, in or outside of src root.

if test "x$CURDIR" = "x$SRC_ROOT" || test "x$CURDIR" = "x$SRC_ROOT/common" || test "x$CURDIR" = "x$SRC_ROOT/common/autoconf" || test "x$CURDIR" = "x$SRC_ROOT/common/makefiles" ; then

    # We are running configure from the src root.

    # Create a default ./build/target-variant-debuglevel output root.

    if test "x${CONF_NAME}" = x; then

        CONF_NAME="${OPENJDK_TARGET_OS}-${OPENJDK_TARGET_CPU}-${JDK_VARIANT}-${ANDED_JVM_VARIANTS}-${DEBUG_LEVEL}"

    fi

    OUTPUT_ROOT="$SRC_ROOT/build/${CONF_NAME}"

    mkdir -p "$OUTPUT_ROOT"

    if test ! -d "$OUTPUT_ROOT"; then

        AC_MSG_ERROR([Could not create build directory $OUTPUT_ROOT])

    fi

else

    # We are running configure from outside of the src dir.

    # Then use the current directory as output dir!

    # If configuration is situated in normal build directory, just use the build

    # directory name as configuration name, otherwise use the complete path.

    if test "x${CONF_NAME}" = x; then

        CONF_NAME=`$ECHO $CURDIR | $SED -e "s!^${SRC_ROOT}/build/!!"`

    fi

    OUTPUT_ROOT="$CURDIR"

fi

SPACESAFE(OUTPUT_ROOT,[the path to the output root])

AC_SUBST(SPEC, $OUTPUT_ROOT/spec.gmk)

AC_SUBST(CONF_NAME, $CONF_NAME)

AC_SUBST(OUTPUT_ROOT, $OUTPUT_ROOT)

# Most of the probed defines are put into config.h

AC_CONFIG_HEADERS([$OUTPUT_ROOT/config.h:$AUTOCONF_DIR/config.h.in])

# The spec.gmk file contains all variables for the make system.

AC_CONFIG_FILES([$OUTPUT_ROOT/spec.gmk:$AUTOCONF_DIR/spec.gmk.in])

# The hotspot-spec.gmk file contains legacy variables for the hotspot make system.

AC_CONFIG_FILES([$OUTPUT_ROOT/hotspot-spec.gmk:$AUTOCONF_DIR/hotspot-spec.gmk.in])

# The bootcycle-spec.gmk file contains support for boot cycle builds.

AC_CONFIG_FILES([$OUTPUT_ROOT/bootcycle-spec.gmk:$AUTOCONF_DIR/bootcycle-spec.gmk.in])

# The compare.sh is used to compare the build output to other builds.

AC_CONFIG_FILES([$OUTPUT_ROOT/compare.sh:$AUTOCONF_DIR/compare.sh.in])

# Spec.sh is currently used by compare-objects.sh

AC_CONFIG_FILES([$OUTPUT_ROOT/spec.sh:$AUTOCONF_DIR/spec.sh.in])

# The generated Makefile knows where the spec.gmk is and where the source is.

# You can run make from the OUTPUT_ROOT, or from the top-level Makefile

# which will look for generated configurations

AC_CONFIG_FILES([$OUTPUT_ROOT/Makefile:$AUTOCONF_DIR/Makefile.in])

# Save the arguments given to us

echo "$CONFIGURE_COMMAND_LINE" > $OUTPUT_ROOT/configure-arguments

])

AC_DEFUN_ONCE([BASIC_SETUP_LOGGING],

[

# Setup default logging of stdout and stderr to build.log in the output root.

BUILD_LOG='$(OUTPUT_ROOT)/build.log'

BUILD_LOG_PREVIOUS='$(OUTPUT_ROOT)/build.log.old'

BUILD_LOG_WRAPPER='$(SH) $(SRC_ROOT)/common/bin/logger.sh $(BUILD_LOG)'

AC_SUBST(BUILD_LOG)

AC_SUBST(BUILD_LOG_PREVIOUS)

AC_SUBST(BUILD_LOG_WRAPPER)

])

#%%% Simple tools %%%

# Check if we have found a usable version of make

# $1: the path to a potential make binary (or empty)

# $2: the description on how we found this

AC_DEFUN([BASIC_CHECK_MAKE_VERSION],

[

  MAKE_CANDIDATE="$1"

  DESCRIPTION="$2"

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

    AC_MSG_NOTICE([Testing potential make at $MAKE_CANDIDATE, found using $DESCRIPTION])

    SET_FULL_PATH(MAKE_CANDIDATE)

    MAKE_VERSION_STRING=`$MAKE_CANDIDATE --version | $HEAD -n 1`

    IS_GNU_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP 'GNU Make'`

    if test "x$IS_GNU_MAKE" = x; then

      AC_MSG_NOTICE([Found potential make at $MAKE_CANDIDATE, however, this is not GNU Make. Ignoring.])

    else

      IS_MODERN_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP '3.8[[12346789]]'`

      if test "x$IS_MODERN_MAKE" = x; then

        AC_MSG_NOTICE([Found GNU make at $MAKE_CANDIDATE, however this is not version 3.81 or later. (it is: $MAKE_VERSION_STRING). Ignoring.])

      else 

        FOUND_MAKE=$MAKE_CANDIDATE

      fi

    fi

  fi

])

# Goes looking for a usable version of GNU make.

AC_DEFUN([BASIC_CHECK_GNU_MAKE],

[

  # We need to find a recent version of GNU make. Especially on Solaris, this can be tricky.

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

    # User has supplied a make, test it.

    if test ! -f "$MAKE"; then

      AC_MSG_ERROR([The specified make (by MAKE=$MAKE) is not found.])

    fi

    BASIC_CHECK_MAKE_VERSION("$MAKE", [user supplied MAKE=])

    if test "x$FOUND_MAKE" = x; then

      AC_MSG_ERROR([The specified make (by MAKE=$MAKE) is not GNU make 3.81 or newer.])

    fi

  else

    # Try our hardest to locate a correct version of GNU make

    AC_PATH_PROGS(CHECK_GMAKE, gmake)

    BASIC_CHECK_MAKE_VERSION("$CHECK_GMAKE", [gmake in PATH])

    if test "x$FOUND_MAKE" = x; then

      AC_PATH_PROGS(CHECK_MAKE, make)

      BASIC_CHECK_MAKE_VERSION("$CHECK_MAKE", [make in PATH])

    fi

    if test "x$FOUND_MAKE" = x; then

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

        # We have a tools-dir, check that as well before giving up.

        OLD_PATH=$PATH

        PATH=$TOOLS_DIR:$PATH

        AC_PATH_PROGS(CHECK_TOOLSDIR_GMAKE, gmake)

        BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_GMAKE", [gmake in tools-dir])

        if test "x$FOUND_MAKE" = x; then

          AC_PATH_PROGS(CHECK_TOOLSDIR_MAKE, make)

          BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_MAKE", [make in tools-dir])

        fi

        PATH=$OLD_PATH

      fi

    fi

    if test "x$FOUND_MAKE" = x; then

      AC_MSG_ERROR([Cannot find GNU make 3.81 or newer! Please put it in the path, or add e.g. MAKE=/opt/gmake3.81/make as argument to configure.])

    fi

  fi

  MAKE=$FOUND_MAKE

  AC_SUBST(MAKE)

  AC_MSG_NOTICE([Using GNU make 3.81 (or later) at $FOUND_MAKE (version: $MAKE_VERSION_STRING)])

])

AC_DEFUN([BASIC_CHECK_FIND_DELETE],

[

    # Test if find supports -delete

    AC_MSG_CHECKING([if find supports -delete])

    FIND_DELETE="-delete"

    DELETEDIR=`mktemp -d tmp.XXXXXXXXXX` || (echo Could not create temporary directory!; exit $?)

    echo Hejsan > $DELETEDIR/TestIfFindSupportsDelete

    TEST_DELETE=`$FIND "$DELETEDIR" -name TestIfFindSupportsDelete $FIND_DELETE 2>&1`

    if test -f $DELETEDIR/TestIfFindSupportsDelete; then

        # No, it does not.

        rm $DELETEDIR/TestIfFindSupportsDelete

        FIND_DELETE="-exec rm \{\} \+"

        AC_MSG_RESULT([no])    

    else

        AC_MSG_RESULT([yes])    

    fi

    rmdir $DELETEDIR

])

# Test that variable $1 denoting a program is not empty. If empty, exit with an error.

# $1: variable to check

# $2: executable name to print in warning (optional)

AC_DEFUN([CHECK_NONEMPTY],

[

    if test "x[$]$1" = x; then

        if test "x$2" = x; then

          PROG_NAME=translit($1,A-Z,a-z)

        else

          PROG_NAME=$2

        fi

        AC_MSG_NOTICE([Could not find $PROG_NAME!])

        AC_MSG_ERROR([Cannot continue])

    fi

])

# Does AC_PATH_PROG followed by CHECK_NONEMPTY.

# Arguments as AC_PATH_PROG:

# $1: variable to set

# $2: executable name to look for

AC_DEFUN([BASIC_REQUIRE_PROG],

[

    AC_PATH_PROGS($1, $2)

    CHECK_NONEMPTY($1, $2)

])

AC_DEFUN_ONCE([BASIC_SETUP_TOOLS],

[

# Start with tools that do not need have cross compilation support

# and can be expected to be found in the default PATH. These tools are

# used by configure. Nor are these tools expected to be found in the

# devkit from the builddeps server either, since they are

# needed to download the devkit.

# First are all the simple required tools.

BASIC_REQUIRE_PROG(BASENAME, basename)

BASIC_REQUIRE_PROG(CAT, cat)

BASIC_REQUIRE_PROG(CHMOD, chmod)

BASIC_REQUIRE_PROG(CMP, cmp)

BASIC_REQUIRE_PROG(CP, cp)

BASIC_REQUIRE_PROG(CPIO, cpio)

BASIC_REQUIRE_PROG(CUT, cut)

BASIC_REQUIRE_PROG(DATE, date)

BASIC_REQUIRE_PROG(DF, df)

BASIC_REQUIRE_PROG(DIFF, [gdiff diff])

BASIC_REQUIRE_PROG(ECHO, echo)

BASIC_REQUIRE_PROG(EXPR, expr)

BASIC_REQUIRE_PROG(FILE, file)

BASIC_REQUIRE_PROG(FIND, find)

BASIC_REQUIRE_PROG(HEAD, head)

BASIC_REQUIRE_PROG(LN, ln)

BASIC_REQUIRE_PROG(LS, ls)

BASIC_REQUIRE_PROG(MKDIR, mkdir)

BASIC_REQUIRE_PROG(MV, mv)

BASIC_REQUIRE_PROG(PRINTF, printf)

BASIC_REQUIRE_PROG(SH, sh)

BASIC_REQUIRE_PROG(SORT, sort)

BASIC_REQUIRE_PROG(TAIL, tail)

BASIC_REQUIRE_PROG(TAR, tar)

BASIC_REQUIRE_PROG(TEE, tee)

BASIC_REQUIRE_PROG(TOUCH, touch)

BASIC_REQUIRE_PROG(TR, tr)

BASIC_REQUIRE_PROG(UNIQ, uniq)

BASIC_REQUIRE_PROG(UNZIP, unzip)

BASIC_REQUIRE_PROG(WC, wc)

BASIC_REQUIRE_PROG(XARGS, xargs)

BASIC_REQUIRE_PROG(ZIP, zip)

# Then required tools that require some special treatment.

AC_PROG_AWK

CHECK_NONEMPTY(AWK)

AC_PROG_GREP

CHECK_NONEMPTY(GREP)

AC_PROG_EGREP

CHECK_NONEMPTY(EGREP)

AC_PROG_FGREP

CHECK_NONEMPTY(FGREP)

AC_PROG_SED

CHECK_NONEMPTY(SED)

AC_PATH_PROGS(NAWK, [nawk gawk awk])

CHECK_NONEMPTY(NAWK)

BASIC_CHECK_GNU_MAKE

BASIC_REQUIRE_PROG(RM, rm)

RM="$RM -f"

BASIC_CHECK_FIND_DELETE

AC_SUBST(FIND_DELETE)

# Non-required basic tools

AC_PATH_PROG(THEPWDCMD, pwd)

AC_PATH_PROG(LDD, ldd)

if test "x$LDD" = "x"; then

    # List shared lib dependencies is used for

    # debug output and checking for forbidden dependencies.

    # We can build without it.

    LDD="true"

fi

AC_PATH_PROG(OTOOL, otool)

if test "x$OTOOL" = "x"; then

   OTOOL="true"

fi

AC_PATH_PROGS(READELF, [readelf greadelf])

AC_PATH_PROGS(OBJDUMP, [objdump gobjdump])

AC_PATH_PROG(HG, hg)

])

AC_DEFUN_ONCE([BASIC_COMPILE_UNCYGDRIVE],

[

# When using cygwin, we need a wrapper binary that renames

# /cygdrive/c/ arguments into c:/ arguments and peeks into

# @files and rewrites these too! This wrapper binary is

# called uncygdrive.exe.

UNCYGDRIVE=

if test "x$OPENJDK_BUILD_OS" = xwindows; then

    AC_MSG_CHECKING([if uncygdrive can be created])

    UNCYGDRIVE_SRC=`$CYGPATH -m $SRC_ROOT/common/src/uncygdrive.c`