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# Copyright (c) 2011, 2024, Oracle and/or its affiliates. All rights reserved.
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# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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# This code is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License version 2 only, as
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# published by the Free Software Foundation. Oracle designates this
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# particular file as subject to the "Classpath" exception as provided
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# by Oracle in the LICENSE file that accompanied this code.
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# This code is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# version 2 for more details (a copy is included in the LICENSE file that
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# accompanied this code).
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# You should have received a copy of the GNU General Public License version
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# 2 along with this work; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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# or visit www.oracle.com if you need additional information or have any
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AC_DEFUN([BPERF_CHECK_CORES],
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AC_MSG_CHECKING([for number of cores])
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if test -f /proc/cpuinfo; then
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# Looks like a Linux (or cygwin) system
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NUM_CORES=`cat /proc/cpuinfo | grep -cw processor`
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if test "$NUM_CORES" -eq "0"; then
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NUM_CORES=`cat /proc/cpuinfo | grep -c ^CPU`
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elif test -x /usr/sbin/sysctl; then
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# Looks like a MacOSX system
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NUM_CORES=`/usr/sbin/sysctl -n hw.ncpu`
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elif test "x$OPENJDK_BUILD_OS" = xaix ; then
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NUM_CORES=`lparstat -m 2> /dev/null | $GREP -o "lcpu=[[0-9]]*" | $CUT -d "=" -f 2`
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elif test -n "$NUMBER_OF_PROCESSORS"; then
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# On windows, look in the env
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NUM_CORES=$NUMBER_OF_PROCESSORS
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if test "$NUM_CORES" -eq "0"; then
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AC_MSG_RESULT([could not detect number of cores, defaulting to 1])
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AC_MSG_WARN([This will disable all parallelism from build!])
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AC_MSG_RESULT([$NUM_CORES])
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AC_DEFUN([BPERF_CHECK_MEMORY_SIZE],
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AC_MSG_CHECKING([for memory size])
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if test -f /proc/meminfo; then
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# Looks like a Linux (or cygwin) system
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MEMORY_SIZE=`cat /proc/meminfo | grep MemTotal | awk '{print [$]2}'`
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MEMORY_SIZE=`expr $MEMORY_SIZE / 1024`
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elif test -x /usr/sbin/prtconf; then
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# Looks like an AIX system
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MEMORY_SIZE=`/usr/sbin/prtconf 2> /dev/null | grep "^Memory [[Ss]]ize" | awk '{ print [$]3 }'`
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elif test -x /usr/sbin/sysctl; then
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# Looks like a MacOSX system
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MEMORY_SIZE=`/usr/sbin/sysctl -n hw.memsize`
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MEMORY_SIZE=`expr $MEMORY_SIZE / 1024 / 1024`
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elif test "x$OPENJDK_BUILD_OS" = xwindows; then
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# Windows, but without cygwin
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MEMORY_SIZE=`wmic computersystem get totalphysicalmemory -value | grep = | cut -d "=" -f 2-`
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MEMORY_SIZE=`expr $MEMORY_SIZE / 1024 / 1024`
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if test "x$FOUND_MEM" = xyes; then
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AC_MSG_RESULT([$MEMORY_SIZE MB])
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AC_MSG_RESULT([could not detect memory size, defaulting to $MEMORY_SIZE MB])
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AC_MSG_WARN([This might seriously impact build performance!])
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AC_DEFUN_ONCE([BPERF_SETUP_BUILD_CORES],
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# How many cores do we have on this build system?
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AC_ARG_WITH(num-cores, [AS_HELP_STRING([--with-num-cores],
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[number of cores in the build system, e.g. --with-num-cores=8 @<:@probed@:>@])])
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if test "x$with_num_cores" = x; then
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# The number of cores were not specified, try to probe them.
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NUM_CORES=$with_num_cores
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AC_DEFUN_ONCE([BPERF_SETUP_BUILD_MEMORY],
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# How much memory do we have on this build system?
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AC_ARG_WITH(memory-size, [AS_HELP_STRING([--with-memory-size],
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[memory (in MB) available in the build system, e.g. --with-memory-size=1024 @<:@probed@:>@])])
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if test "x$with_memory_size" = x; then
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# The memory size was not specified, try to probe it.
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BPERF_CHECK_MEMORY_SIZE
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MEMORY_SIZE=$with_memory_size
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AC_SUBST(MEMORY_SIZE)
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AC_DEFUN_ONCE([BPERF_SETUP_BUILD_JOBS],
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# Provide a decent default number of parallel jobs for make depending on
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# number of cores, amount of memory and machine architecture.
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AC_ARG_WITH(jobs, [AS_HELP_STRING([--with-jobs],
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[number of parallel jobs to let make run @<:@calculated based on cores and memory@:>@])])
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if test "x$with_jobs" = x; then
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# Number of jobs was not specified, calculate.
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AC_MSG_CHECKING([for appropriate number of jobs to run in parallel])
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# Approximate memory in GB.
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memory_gb=`expr $MEMORY_SIZE / 1024`
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# Pick the lowest of memory in gb and number of cores.
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if test "$memory_gb" -lt "$NUM_CORES"; then
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if test "$JOBS" -eq "0"; then
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AC_MSG_RESULT([$JOBS])
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AC_DEFUN_ONCE([BPERF_SETUP_TEST_JOBS],
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# The number of test jobs will be chosen automatically if TEST_JOBS is 0
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AC_ARG_WITH(test-jobs, [AS_HELP_STRING([--with-test-jobs],
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[number of parallel tests jobs to run @<:@based on build jobs@:>@])])
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if test "x$with_test_jobs" = x; then
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TEST_JOBS=$with_test_jobs
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AC_DEFUN([BPERF_SETUP_CCACHE],
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# Check if ccache is available
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CCACHE_AVAILABLE=true
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if test "x$TOOLCHAIN_PATH" != x; then
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PATH=$TOOLCHAIN_PATH:$PATH
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UTIL_LOOKUP_PROGS(CCACHE, ccache)
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AC_MSG_CHECKING([if ccache is available])
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if test "x$TOOLCHAIN_TYPE" != "xgcc" && test "x$TOOLCHAIN_TYPE" != "xclang"; then
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AC_MSG_RESULT([no, not supported for toolchain type $TOOLCHAIN_TYPE])
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CCACHE_AVAILABLE=false
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elif test "x$CCACHE" = "x"; then
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AC_MSG_RESULT([no, ccache binary missing or not executable])
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CCACHE_AVAILABLE=false
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UTIL_ARG_ENABLE(NAME: ccache, DEFAULT: false, AVAILABLE: $CCACHE_AVAILABLE,
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DESC: [enable using ccache to speed up recompilations],
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CHECKING_MSG: [if ccache is enabled],
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CCACHE_VERSION=[`$CCACHE --version | head -n1 | $SED 's/[A-Za-z ]*//'`]
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CCACHE_STATUS="Active ($CCACHE_VERSION)"
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AC_ARG_WITH([ccache-dir],
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[AS_HELP_STRING([--with-ccache-dir],
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[where to store ccache files @<:@~/.ccache@:>@])])
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if test "x$with_ccache_dir" != x; then
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# When using a non home ccache directory, assume the use is to share ccache files
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# with other users. Thus change the umask.
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SET_CCACHE_DIR="CCACHE_DIR=$with_ccache_dir CCACHE_UMASK=002"
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if test "x$CCACHE" = x; then
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AC_MSG_WARN([--with-ccache-dir has no meaning when ccache is not enabled])
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if test "x$CCACHE" != x; then
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BPERF_SETUP_CCACHE_USAGE
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AC_DEFUN([BPERF_SETUP_CCACHE_USAGE],
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if test "x$CCACHE" != x; then
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if test "x$OPENJDK_BUILD_OS" = "xmacosx"; then
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HAS_BAD_CCACHE=[`$ECHO $CCACHE_VERSION | \
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$GREP -e '^1\.' -e '^2\.' -e '^3\.0\.' -e '^3\.1\.'`]
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if test "x$HAS_BAD_CCACHE" != "x"; then
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AC_MSG_ERROR([On macosx, ccache 3.2 or later is required, found $CCACHE_VERSION])
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if test "x$USE_PRECOMPILED_HEADER" = "xtrue"; then
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HAS_BAD_CCACHE=[`$ECHO $CCACHE_VERSION | \
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$GREP -e '^1.*' -e '^2.*' -e '^3\.0.*' -e '^3\.1\.[0123]$'`]
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if test "x$HAS_BAD_CCACHE" != "x"; then
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AC_MSG_ERROR([Precompiled headers requires ccache 3.1.4 or later, found $CCACHE_VERSION])
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AC_MSG_CHECKING([if C-compiler supports ccache precompiled headers])
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CCACHE_PRECOMP_FLAG="-fpch-preprocess"
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PUSHED_FLAGS="$CXXFLAGS"
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CXXFLAGS="$CCACHE_PRECOMP_FLAG $CXXFLAGS"
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], [CC_KNOWS_CCACHE_TRICK=yes], [CC_KNOWS_CCACHE_TRICK=no])
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CXXFLAGS="$PUSHED_FLAGS"
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if test "x$CC_KNOWS_CCACHE_TRICK" = xyes; then
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CFLAGS_CCACHE="$CCACHE_PRECOMP_FLAG"
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AC_SUBST(CFLAGS_CCACHE)
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CCACHE_SLOPPINESS=pch_defines,time_macros
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AC_MSG_ERROR([Cannot use ccache with precompiled headers without compiler support for $CCACHE_PRECOMP_FLAG])
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# The CCACHE_BASEDIR needs to end with '/' as ccache will otherwise think
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# directories next to it, that have the base dir name as a prefix, are sub
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# directories of CCACHE_BASEDIR.
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CCACHE="CCACHE_COMPRESS=1 $SET_CCACHE_DIR \
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CCACHE_SLOPPINESS=$CCACHE_SLOPPINESS CCACHE_BASEDIR=$WORKSPACE_ROOT/ $CCACHE"
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if test "x$SET_CCACHE_DIR" != x; then
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mkdir -p $CCACHE_DIR > /dev/null 2>&1
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chmod a+rwxs $CCACHE_DIR > /dev/null 2>&1
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################################################################################
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# Runs icecc-create-env once and prints the error if it fails
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# $1: arguments to icecc-create-env
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AC_DEFUN([BPERF_RUN_ICECC_CREATE_ENV],
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( cd ${CONFIGURESUPPORT_OUTPUTDIR}/icecc \
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&& ${ICECC_CREATE_ENV} $1 > $2 2>&1 )
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if test "$?" != "0"; then
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AC_MSG_NOTICE([icecc-create-env output:])
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AC_MSG_ERROR([Failed to create icecc compiler environment])
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################################################################################
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# Optionally enable distributed compilation of native code using icecc/icecream
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AC_DEFUN([BPERF_SETUP_ICECC],
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UTIL_ARG_ENABLE(NAME: icecc, DEFAULT: false, RESULT: ENABLE_ICECC,
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DESC: [enable distributed compilation of native code using icecc/icecream])
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if test "x$ENABLE_ICECC" = "xtrue"; then
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UTIL_REQUIRE_PROGS(ICECC_CMD, icecc)
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# Look for icecc-create-env in some known places
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PATH="$PATH:/usr/lib/icecc:/usr/lib64/icecc"
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UTIL_REQUIRE_PROGS(ICECC_CREATE_ENV, icecc-create-env)
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# Use icecc-create-env to create a minimal compilation environment that can
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# be sent to the other hosts in the icecream cluster.
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icecc_create_env_log="${CONFIGURESUPPORT_OUTPUTDIR}/icecc/icecc_create_env.log"
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${MKDIR} -p ${CONFIGURESUPPORT_OUTPUTDIR}/icecc
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# Older versions of icecc does not have the --gcc parameter
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if ${ICECC_CREATE_ENV} | $GREP -q -e --gcc; then
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icecc_gcc_arg="--gcc"
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if test "x${TOOLCHAIN_TYPE}" = "xgcc"; then
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BPERF_RUN_ICECC_CREATE_ENV([${icecc_gcc_arg} ${CC} ${CXX}], \
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${icecc_create_env_log})
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elif test "x$TOOLCHAIN_TYPE" = "xclang"; then
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# For clang, the icecc compilerwrapper is needed. It usually resides next
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# to icecc-create-env.
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UTIL_REQUIRE_PROGS(ICECC_WRAPPER, compilerwrapper)
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BPERF_RUN_ICECC_CREATE_ENV([--clang ${CC} ${ICECC_WRAPPER}], ${icecc_create_env_log})
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AC_MSG_ERROR([Can only create icecc compiler packages for toolchain types gcc and clang])
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# The bundle with the compiler gets a name based on checksums. Parse log file
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ICECC_ENV_BUNDLE_BASENAME="`${SED} -n '/^creating/s/creating //p' ${icecc_create_env_log}`"
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ICECC_ENV_BUNDLE="${CONFIGURESUPPORT_OUTPUTDIR}/icecc/${ICECC_ENV_BUNDLE_BASENAME}"
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if test ! -f ${ICECC_ENV_BUNDLE}; then
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AC_MSG_ERROR([icecc-create-env did not produce an environment ${ICECC_ENV_BUNDLE}])
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AC_MSG_CHECKING([for icecc build environment for target compiler])
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AC_MSG_RESULT([${ICECC_ENV_BUNDLE}])
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ICECC="ICECC_VERSION=${ICECC_ENV_BUNDLE} ICECC_CC=${CC} ICECC_CXX=${CXX} ${ICECC_CMD}"
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if test "x${COMPILE_TYPE}" = "xcross"; then
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# If cross compiling, create a separate env package for the build compiler
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# Assume "gcc" or "cc" is gcc and "clang" is clang. Otherwise bail.
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icecc_create_env_log_build="${CONFIGURESUPPORT_OUTPUTDIR}/icecc/icecc_create_env_build.log"
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if test "x${BUILD_CC##*/}" = "xgcc" || test "x${BUILD_CC##*/}" = "xcc"; then
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BPERF_RUN_ICECC_CREATE_ENV([${icecc_gcc_arg} ${BUILD_CC} ${BUILD_CXX}], \
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${icecc_create_env_log_build})
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elif test "x${BUILD_CC##*/}" = "xclang"; then
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BPERF_RUN_ICECC_CREATE_ENV([--clang ${BUILD_CC} ${ICECC_WRAPPER}], ${icecc_create_env_log_build})
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AC_MSG_ERROR([Cannot create icecc compiler package for ${BUILD_CC}])
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ICECC_ENV_BUNDLE_BASENAME="`${SED} -n '/^creating/s/creating //p' ${icecc_create_env_log_build}`"
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ICECC_ENV_BUNDLE="${CONFIGURESUPPORT_OUTPUTDIR}/icecc/${ICECC_ENV_BUNDLE_BASENAME}"
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if test ! -f ${ICECC_ENV_BUNDLE}; then
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AC_MSG_ERROR([icecc-create-env did not produce an environment ${ICECC_ENV_BUNDLE}])
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AC_MSG_CHECKING([for icecc build environment for build compiler])
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AC_MSG_RESULT([${ICECC_ENV_BUNDLE}])
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BUILD_ICECC="ICECC_VERSION=${ICECC_ENV_BUNDLE} ICECC_CC=${BUILD_CC} \
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ICECC_CXX=${BUILD_CXX} ${ICECC_CMD}"
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BUILD_ICECC="${ICECC}"
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AC_SUBST(BUILD_ICECC)
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AC_DEFUN_ONCE([BPERF_SETUP_PRECOMPILED_HEADERS],
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# Are precompiled headers available?
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PRECOMPILED_HEADERS_AVAILABLE=true
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AC_MSG_CHECKING([if precompiled headers are available])
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if test "x$ICECC" != "x"; then
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AC_MSG_RESULT([no, does not work effectively with icecc])
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PRECOMPILED_HEADERS_AVAILABLE=false
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elif test "x$TOOLCHAIN_TYPE" = xgcc; then
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# Check that the compiler actually supports precomp headers.
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echo "int alfa();" > conftest.h
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$CXX -x c++-header conftest.h -o conftest.hpp.gch 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD
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if test ! -f conftest.hpp.gch; then
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PRECOMPILED_HEADERS_AVAILABLE=false
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AC_MSG_RESULT([no, gcc fails to compile properly with -x c++-header])
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$RM conftest.h conftest.hpp.gch
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UTIL_ARG_ENABLE(NAME: precompiled-headers, DEFAULT: auto,
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RESULT: USE_PRECOMPILED_HEADER, AVAILABLE: $PRECOMPILED_HEADERS_AVAILABLE,
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DESC: [enable using precompiled headers when compiling C++])
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AC_SUBST(USE_PRECOMPILED_HEADER)
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AC_DEFUN_ONCE([BPERF_SETUP_JAVAC_SERVER],
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UTIL_ARG_ENABLE(NAME: javac-server, DEFAULT: true,
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RESULT: ENABLE_JAVAC_SERVER,
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DESC: [enable javac server],
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CHECKING_MSG: [whether to use javac server])
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AC_SUBST(ENABLE_JAVAC_SERVER)