1# 2# Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved. 3# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4# 5# This code is free software; you can redistribute it and/or modify it 6# under the terms of the GNU General Public License version 2 only, as 7# published by the Free Software Foundation. Oracle designates this 8# particular file as subject to the "Classpath" exception as provided 9# by Oracle in the LICENSE file that accompanied this code. 10# 11# This code is distributed in the hope that it will be useful, but WITHOUT 12# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14# version 2 for more details (a copy is included in the LICENSE file that 15# accompanied this code). 16# 17# You should have received a copy of the GNU General Public License version 18# 2 along with this work; if not, write to the Free Software Foundation, 19# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20# 21# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22# or visit www.oracle.com if you need additional information or have any 23# questions. 24# 25 26######################################################################## 27# This file handles detection of the Boot JDK. The Boot JDK detection 28# process has been developed as a response to solve a complex real-world 29# problem. Initially, it was simple, but it has grown as platform after 30# platform, idiosyncracy after idiosyncracy has been supported. 31# 32# The basic idea is this: 33# 1) You need an acceptable *) JDK to use as a Boot JDK 34# 2) There are several ways to locate a JDK, that are mostly platform 35# dependent **) 36# 3) You can have multiple JDKs installed 37# 4) If possible, configure should try to dig out an acceptable JDK 38# automatically, without having to resort to command-line options 39# 40# *) acceptable means e.g. JDK7 for building JDK8, a complete JDK (with 41# javac) and not a JRE, etc. 42# 43# **) On Windows we typically use a well-known path. 44# On MacOSX we typically use the tool java_home. 45# On Linux we typically find javac in the $PATH, and then follow a 46# chain of symlinks that often ends up in a real JDK. 47# 48# This leads to the code where we check in different ways to locate a 49# JDK, and if one is found, check if it is acceptable. If not, we print 50# our reasons for rejecting it (useful when debugging non-working 51# configure situations) and continue checking the next one. 52######################################################################## 53 54# Execute the check given as argument, and verify the result 55# If the Boot JDK was previously found, do nothing 56# $1 A command line (typically autoconf macro) to execute 57AC_DEFUN([BOOTJDK_DO_CHECK], 58[ 59 if test "x$BOOT_JDK_FOUND" = xno; then 60 # Now execute the test 61 $1 62 63 # If previous step claimed to have found a JDK, check it to see if it seems to be valid. 64 if test "x$BOOT_JDK_FOUND" = xmaybe; then 65 # Do we have a bin/java? 66 if test ! -x "$BOOT_JDK/bin/java$EXE_SUFFIX"; then 67 AC_MSG_NOTICE([Potential Boot JDK found at $BOOT_JDK did not contain bin/java; ignoring]) 68 BOOT_JDK_FOUND=no 69 else 70 # Do we have a bin/javac? 71 if test ! -x "$BOOT_JDK/bin/javac$EXE_SUFFIX"; then 72 AC_MSG_NOTICE([Potential Boot JDK found at $BOOT_JDK did not contain bin/javac; ignoring]) 73 AC_MSG_NOTICE([(This might be an JRE instead of an JDK)]) 74 BOOT_JDK_FOUND=no 75 else 76 # Oh, this is looking good! We probably have found a proper JDK. Is it the correct version? 77 BOOT_JDK_VERSION=`"$BOOT_JDK/bin/java$EXE_SUFFIX" $USER_BOOT_JDK_OPTIONS -version 2>&1 | $HEAD -n 1` 78 if [ [[ "$BOOT_JDK_VERSION" =~ "Picked up" ]] ]; then 79 AC_MSG_NOTICE([You have _JAVA_OPTIONS or JAVA_TOOL_OPTIONS set. This can mess up the build. Please use --with-boot-jdk-jvmargs instead.]) 80 AC_MSG_NOTICE([Java reports: "$BOOT_JDK_VERSION".]) 81 AC_MSG_ERROR([Cannot continue]) 82 fi 83 if [ [[ "$BOOT_JDK_VERSION" =~ "Unrecognized option" ]] ]; then 84 AC_MSG_NOTICE([The specified --with-boot-jdk-jvmargs is invalid for the tested java]) 85 AC_MSG_NOTICE([Error message: "$BOOT_JDK_VERSION".]) 86 AC_MSG_NOTICE([Please fix arguments, or point to an explicit boot JDK which accept these arguments]) 87 AC_MSG_ERROR([Cannot continue]) 88 fi 89 90 # Extra M4 quote needed to protect [] in grep expression. 91 [FOUND_CORRECT_VERSION=`$ECHO $BOOT_JDK_VERSION \ 92 | $EGREP "\"(${DEFAULT_ACCEPTABLE_BOOT_VERSIONS// /|})([\.+-].*)?\""`] 93 if test "x$FOUND_CORRECT_VERSION" = x; then 94 AC_MSG_NOTICE([Potential Boot JDK found at $BOOT_JDK is incorrect JDK version ($BOOT_JDK_VERSION); ignoring]) 95 AC_MSG_NOTICE([(Your Boot JDK version must be one of: $DEFAULT_ACCEPTABLE_BOOT_VERSIONS)]) 96 BOOT_JDK_FOUND=no 97 else 98 # We're done! :-) 99 BOOT_JDK_FOUND=yes 100 BASIC_FIXUP_PATH(BOOT_JDK) 101 AC_MSG_CHECKING([for Boot JDK]) 102 AC_MSG_RESULT([$BOOT_JDK]) 103 AC_MSG_CHECKING([Boot JDK version]) 104 BOOT_JDK_VERSION=`"$BOOT_JDK/bin/java$EXE_SUFFIX" $USER_BOOT_JDK_OPTIONS -version 2>&1 | $TR '\n\r' ' '` 105 AC_MSG_RESULT([$BOOT_JDK_VERSION]) 106 fi # end check jdk version 107 fi # end check javac 108 fi # end check java 109 fi # end check boot jdk found 110 fi 111]) 112 113# Test: Is bootjdk explicitly set by command line arguments? 114AC_DEFUN([BOOTJDK_CHECK_ARGUMENTS], 115[ 116 if test "x$with_boot_jdk" != x; then 117 if test -d "$with_boot_jdk"; then 118 BOOT_JDK=$with_boot_jdk 119 BOOT_JDK_FOUND=maybe 120 elif test -f "$with_boot_jdk"; then 121 case "$with_boot_jdk" in 122 *.tar.gz ) 123 BOOT_JDK_SUPPORT_DIR=$CONFIGURESUPPORT_OUTPUTDIR/boot-jdk 124 $RM -rf $BOOT_JDK_SUPPORT_DIR 125 $MKDIR -p $BOOT_JDK_SUPPORT_DIR 126 $GUNZIP -c $with_boot_jdk | $TAR xf - -C $BOOT_JDK_SUPPORT_DIR 127 128 # Try to find javac to determine BOOT_JDK path 129 BOOT_JDK_JAVAC_PATH=`$FIND $BOOT_JDK_SUPPORT_DIR | $GREP "/bin/javac"` 130 if test "x$BOOT_JDK_JAVAC_PATH" != x; then 131 BOOT_JDK_FOUND=maybe 132 BOOT_JDK=$($DIRNAME $($DIRNAME $BOOT_JDK_JAVAC_PATH)) 133 else 134 BOOT_JDK_FOUND=no 135 fi 136 ;; 137 * ) 138 BOOT_JDK_FOUND=no 139 ;; 140 esac 141 else 142 BOOT_JDK_FOUND=no 143 fi 144 AC_MSG_NOTICE([Found potential Boot JDK using configure arguments]) 145 fi 146]) 147 148# Test: Is $JAVA_HOME set? 149AC_DEFUN([BOOTJDK_CHECK_JAVA_HOME], 150[ 151 if test "x$JAVA_HOME" != x; then 152 JAVA_HOME_PROCESSED="$JAVA_HOME" 153 BASIC_FIXUP_PATH(JAVA_HOME_PROCESSED) 154 if test ! -d "$JAVA_HOME_PROCESSED"; then 155 AC_MSG_NOTICE([Your JAVA_HOME points to a non-existing directory!]) 156 else 157 # Aha, the user has set a JAVA_HOME 158 # let us use that as the Boot JDK. 159 BOOT_JDK="$JAVA_HOME_PROCESSED" 160 BOOT_JDK_FOUND=maybe 161 AC_MSG_NOTICE([Found potential Boot JDK using JAVA_HOME]) 162 fi 163 fi 164]) 165 166# Test: Is there a java or javac in the PATH, which is a symlink to the JDK? 167AC_DEFUN([BOOTJDK_CHECK_JAVA_IN_PATH_IS_SYMLINK], 168[ 169 AC_PATH_PROG(JAVAC_CHECK, javac) 170 AC_PATH_PROG(JAVA_CHECK, java) 171 BINARY="$JAVAC_CHECK" 172 if test "x$JAVAC_CHECK" = x; then 173 BINARY="$JAVA_CHECK" 174 fi 175 if test "x$BINARY" != x; then 176 # So there is a java(c) binary, it might be part of a JDK. 177 # Lets find the JDK/JRE directory by following symbolic links. 178 # Linux/GNU systems often have links from /usr/bin/java to 179 # /etc/alternatives/java to the real JDK binary. 180 BASIC_REMOVE_SYMBOLIC_LINKS(BINARY) 181 BOOT_JDK=`dirname "$BINARY"` 182 BOOT_JDK=`cd "$BOOT_JDK/.."; pwd` 183 if test -x "$BOOT_JDK/bin/javac" && test -x "$BOOT_JDK/bin/java"; then 184 # Looks like we found ourselves an JDK 185 BOOT_JDK_FOUND=maybe 186 AC_MSG_NOTICE([Found potential Boot JDK using java(c) in PATH]) 187 fi 188 fi 189]) 190 191# Test: Is there a /usr/libexec/java_home? (Typically on MacOSX) 192# $1: Argument to the java_home binary (optional) 193AC_DEFUN([BOOTJDK_CHECK_LIBEXEC_JAVA_HOME], 194[ 195 if test -x /usr/libexec/java_home; then 196 BOOT_JDK=`/usr/libexec/java_home $1` 197 BOOT_JDK_FOUND=maybe 198 AC_MSG_NOTICE([Found potential Boot JDK using /usr/libexec/java_home $1]) 199 fi 200]) 201 202# Test: On MacOS X, can we find a boot jdk using /usr/libexec/java_home? 203AC_DEFUN([BOOTJDK_CHECK_MACOSX_JAVA_LOCATOR], 204[ 205 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 206 # First check at user selected default 207 BOOTJDK_DO_CHECK([BOOTJDK_CHECK_LIBEXEC_JAVA_HOME()]) 208 # If that did not work out (e.g. too old), try explicit versions instead 209 BOOTJDK_DO_CHECK([BOOTJDK_CHECK_LIBEXEC_JAVA_HOME([-v 1.9])]) 210 BOOTJDK_DO_CHECK([BOOTJDK_CHECK_LIBEXEC_JAVA_HOME([-v 1.8])]) 211 BOOTJDK_DO_CHECK([BOOTJDK_CHECK_LIBEXEC_JAVA_HOME([-v 1.7])]) 212 fi 213]) 214 215# Look for a jdk in the given path. If there are multiple, try to select the newest. 216# If found, set BOOT_JDK and BOOT_JDK_FOUND. 217# $1 = Path to directory containing jdk installations. 218# $2 = String to append to the found JDK directory to get the proper JDK home 219AC_DEFUN([BOOTJDK_FIND_BEST_JDK_IN_DIRECTORY], 220[ 221 BOOT_JDK_PREFIX="$1" 222 BOOT_JDK_SUFFIX="$2" 223 ALL_JDKS_FOUND=`$LS "$BOOT_JDK_PREFIX" 2> /dev/null | $SORT -r` 224 if test "x$ALL_JDKS_FOUND" != x; then 225 for JDK_TO_TRY in $ALL_JDKS_FOUND ; do 226 BOOTJDK_DO_CHECK([ 227 BOOT_JDK="${BOOT_JDK_PREFIX}/${JDK_TO_TRY}${BOOT_JDK_SUFFIX}" 228 if test -d "$BOOT_JDK"; then 229 BOOT_JDK_FOUND=maybe 230 AC_MSG_NOTICE([Found potential Boot JDK using well-known locations (in $BOOT_JDK_PREFIX/$JDK_TO_TRY)]) 231 fi 232 ]) 233 done 234 fi 235]) 236 237# Call BOOTJDK_FIND_BEST_JDK_IN_DIRECTORY, but use the given 238# environmental variable as base for where to look. 239# $1 Name of an environmal variable, assumed to point to the Program Files directory. 240AC_DEFUN([BOOTJDK_FIND_BEST_JDK_IN_WINDOWS_VIRTUAL_DIRECTORY], 241[ 242 if test "x[$]$1" != x; then 243 VIRTUAL_DIR="[$]$1/Java" 244 BASIC_WINDOWS_REWRITE_AS_UNIX_PATH(VIRTUAL_DIR) 245 BOOTJDK_FIND_BEST_JDK_IN_DIRECTORY($VIRTUAL_DIR) 246 fi 247]) 248 249# Test: Is there a JDK installed in default, well-known locations? 250AC_DEFUN([BOOTJDK_CHECK_WELL_KNOWN_LOCATIONS], 251[ 252 if test "x$OPENJDK_TARGET_OS" = xwindows; then 253 BOOTJDK_DO_CHECK([BOOTJDK_FIND_BEST_JDK_IN_WINDOWS_VIRTUAL_DIRECTORY([ProgramW6432])]) 254 BOOTJDK_DO_CHECK([BOOTJDK_FIND_BEST_JDK_IN_WINDOWS_VIRTUAL_DIRECTORY([PROGRAMW6432])]) 255 BOOTJDK_DO_CHECK([BOOTJDK_FIND_BEST_JDK_IN_WINDOWS_VIRTUAL_DIRECTORY([PROGRAMFILES])]) 256 BOOTJDK_DO_CHECK([BOOTJDK_FIND_BEST_JDK_IN_WINDOWS_VIRTUAL_DIRECTORY([ProgramFiles])]) 257 BOOTJDK_DO_CHECK([BOOTJDK_FIND_BEST_JDK_IN_DIRECTORY([/cygdrive/c/Program Files/Java])]) 258 elif test "x$OPENJDK_TARGET_OS" = xmacosx; then 259 BOOTJDK_DO_CHECK([BOOTJDK_FIND_BEST_JDK_IN_DIRECTORY([/Library/Java/JavaVirtualMachines],[/Contents/Home])]) 260 BOOTJDK_DO_CHECK([BOOTJDK_FIND_BEST_JDK_IN_DIRECTORY([/System/Library/Java/JavaVirtualMachines],[/Contents/Home])]) 261 elif test "x$OPENJDK_TARGET_OS" = xlinux; then 262 BOOTJDK_DO_CHECK([BOOTJDK_FIND_BEST_JDK_IN_DIRECTORY([/usr/lib/jvm])]) 263 fi 264]) 265 266# Check that a command-line tool in the Boot JDK is correct 267# $1 = name of variable to assign 268# $2 = name of binary 269AC_DEFUN([BOOTJDK_CHECK_TOOL_IN_BOOTJDK], 270[ 271 # Use user overridden value if available, otherwise locate tool in the Boot JDK. 272 BASIC_SETUP_TOOL($1, 273 [ 274 AC_MSG_CHECKING([for $2 in Boot JDK]) 275 $1=$BOOT_JDK/bin/$2 276 if test ! -x [$]$1; then 277 AC_MSG_RESULT(not found) 278 AC_MSG_NOTICE([Your Boot JDK seems broken. This might be fixed by explicitly setting --with-boot-jdk]) 279 AC_MSG_ERROR([Could not find $2 in the Boot JDK]) 280 fi 281 AC_MSG_RESULT(ok) 282 AC_SUBST($1) 283 ]) 284]) 285 286############################################################################### 287# 288# We need a Boot JDK to bootstrap the build. 289# 290 291AC_DEFUN_ONCE([BOOTJDK_SETUP_BOOT_JDK], 292[ 293 BOOT_JDK_FOUND=no 294 AC_ARG_WITH(boot-jdk, [AS_HELP_STRING([--with-boot-jdk], 295 [path to Boot JDK (used to bootstrap build) @<:@probed@:>@])]) 296 297 AC_ARG_WITH(boot-jdk-jvmargs, [AS_HELP_STRING([--with-boot-jdk-jvmargs], 298 [specify additional arguments to be passed to Boot JDK tools @<:@none@:>@])]) 299 300 USER_BOOT_JDK_OPTIONS="$with_boot_jdk_jvmargs" 301 302 # We look for the Boot JDK through various means, going from more certain to 303 # more of a guess-work. After each test, BOOT_JDK_FOUND is set to "yes" if 304 # we detected something (if so, the path to the jdk is in BOOT_JDK). But we 305 # must check if this is indeed valid; otherwise we'll continue looking. 306 307 # Test: Is bootjdk explicitly set by command line arguments? 308 BOOTJDK_DO_CHECK([BOOTJDK_CHECK_ARGUMENTS]) 309 if test "x$with_boot_jdk" != x && test "x$BOOT_JDK_FOUND" = xno; then 310 # Having specified an argument which is incorrect will produce an instant failure; 311 # we should not go on looking 312 AC_MSG_ERROR([The path given by --with-boot-jdk does not contain a valid Boot JDK]) 313 fi 314 315 # Test: On MacOS X, can we find a boot jdk using /usr/libexec/java_home? 316 BOOTJDK_DO_CHECK([BOOTJDK_CHECK_MACOSX_JAVA_LOCATOR]) 317 318 # Test: Is $JAVA_HOME set? 319 BOOTJDK_DO_CHECK([BOOTJDK_CHECK_JAVA_HOME]) 320 321 # Test: Is there a java or javac in the PATH, which is a symlink to the JDK? 322 BOOTJDK_DO_CHECK([BOOTJDK_CHECK_JAVA_IN_PATH_IS_SYMLINK]) 323 324 # Test: Is there a JDK installed in default, well-known locations? 325 BOOTJDK_DO_CHECK([BOOTJDK_CHECK_WELL_KNOWN_LOCATIONS]) 326 327 # If we haven't found anything yet, we've truly lost. Give up. 328 if test "x$BOOT_JDK_FOUND" = xno; then 329 HELP_MSG_MISSING_DEPENDENCY([openjdk]) 330 AC_MSG_NOTICE([Could not find a valid Boot JDK. $HELP_MSG]) 331 AC_MSG_NOTICE([This might be fixed by explicitly setting --with-boot-jdk]) 332 AC_MSG_ERROR([Cannot continue]) 333 fi 334 335 AC_SUBST(BOOT_JDK) 336 337 # Setup tools from the Boot JDK. 338 BOOTJDK_CHECK_TOOL_IN_BOOTJDK(JAVA, java$EXE_SUFFIX) 339 BOOTJDK_CHECK_TOOL_IN_BOOTJDK(JAVAC, javac$EXE_SUFFIX) 340 BOOTJDK_CHECK_TOOL_IN_BOOTJDK(JAVADOC, javadoc$EXE_SUFFIX) 341 BOOTJDK_CHECK_TOOL_IN_BOOTJDK(JAR, jar$EXE_SUFFIX) 342 BOOTJDK_CHECK_TOOL_IN_BOOTJDK(JARSIGNER, jarsigner$EXE_SUFFIX) 343 344 # Finally, set some other options... 345 346 # When compiling code to be executed by the Boot JDK, force compatibility with the 347 # oldest supported bootjdk. 348 BOOT_JDK_SOURCETARGET="-source 13 -target 13" 349 AC_SUBST(BOOT_JDK_SOURCETARGET) 350 351 AC_SUBST(JAVAC_FLAGS) 352 353 # Check if the boot jdk is 32 or 64 bit 354 if "$JAVA" -version 2>&1 | $GREP -q "64-Bit"; then 355 BOOT_JDK_BITS="64" 356 else 357 BOOT_JDK_BITS="32" 358 fi 359 AC_MSG_CHECKING([if Boot JDK is 32 or 64 bits]) 360 AC_MSG_RESULT([$BOOT_JDK_BITS]) 361 362 # Try to enable CDS 363 AC_MSG_CHECKING([for local Boot JDK Class Data Sharing (CDS)]) 364 BOOT_JDK_CDS_ARCHIVE=$CONFIGURESUPPORT_OUTPUTDIR/classes.jsa 365 ADD_JVM_ARG_IF_OK([-XX:+UnlockDiagnosticVMOptions -XX:-VerifySharedSpaces -XX:SharedArchiveFile=$BOOT_JDK_CDS_ARCHIVE],boot_jdk_cds_args,[$JAVA]) 366 367 if test "x$boot_jdk_cds_args" != x; then 368 # Try creating a CDS archive 369 "$JAVA" $boot_jdk_cds_args -Xshare:dump > /dev/null 2>&1 370 if test $? -eq 0; then 371 BOOTJDK_USE_LOCAL_CDS=true 372 AC_MSG_RESULT([yes, created]) 373 else 374 # Generation failed, don't use CDS. 375 BOOTJDK_USE_LOCAL_CDS=false 376 AC_MSG_RESULT([no, creation failed]) 377 fi 378 else 379 BOOTJDK_USE_LOCAL_CDS=false 380 AC_MSG_RESULT([no, -XX:SharedArchiveFile not supported]) 381 fi 382]) 383 384AC_DEFUN_ONCE([BOOTJDK_SETUP_BOOT_JDK_ARGUMENTS], 385[ 386 ############################################################################## 387 # 388 # Specify jvm options for anything that is run with the Boot JDK. 389 # Not all JVM:s accept the same arguments on the command line. 390 # 391 AC_MSG_CHECKING([flags for boot jdk java command] ) 392 393 # Force en-US environment 394 ADD_JVM_ARG_IF_OK([-Duser.language=en -Duser.country=US],boot_jdk_jvmargs,[$JAVA]) 395 396 if test "x$BOOTJDK_USE_LOCAL_CDS" = xtrue; then 397 # Use our own CDS archive 398 ADD_JVM_ARG_IF_OK([$boot_jdk_cds_args -Xshare:auto],boot_jdk_jvmargs,[$JAVA]) 399 else 400 # Otherwise optimistically use the system-wide one, if one is present 401 ADD_JVM_ARG_IF_OK([-Xshare:auto],boot_jdk_jvmargs,[$JAVA]) 402 fi 403 404 # Finally append user provided options to allow them to override. 405 ADD_JVM_ARG_IF_OK([$USER_BOOT_JDK_OPTIONS],boot_jdk_jvmargs,[$JAVA]) 406 407 AC_MSG_RESULT([$boot_jdk_jvmargs]) 408 409 # For now, general JAVA_FLAGS are the same as the boot jdk jvmargs 410 JAVA_FLAGS=$boot_jdk_jvmargs 411 AC_SUBST(JAVA_FLAGS) 412 413 AC_MSG_CHECKING([flags for boot jdk java command for big workloads]) 414 415 # Starting amount of heap memory. 416 ADD_JVM_ARG_IF_OK([-Xms64M],boot_jdk_jvmargs_big,[$JAVA]) 417 BOOTCYCLE_JVM_ARGS_BIG=-Xms64M 418 419 # Maximum amount of heap memory and stack size. 420 JVM_HEAP_LIMIT_32="768" 421 # Running a 64 bit JVM allows for and requires a bigger heap 422 JVM_HEAP_LIMIT_64="1600" 423 STACK_SIZE_32=768 424 STACK_SIZE_64=1536 425 JVM_HEAP_LIMIT_GLOBAL=`expr $MEMORY_SIZE / 2` 426 if test "$JVM_HEAP_LIMIT_GLOBAL" -lt "$JVM_HEAP_LIMIT_32"; then 427 JVM_HEAP_LIMIT_32=$JVM_HEAP_LIMIT_GLOBAL 428 fi 429 if test "$JVM_HEAP_LIMIT_GLOBAL" -lt "$JVM_HEAP_LIMIT_64"; then 430 JVM_HEAP_LIMIT_64=$JVM_HEAP_LIMIT_GLOBAL 431 fi 432 if test "$JVM_HEAP_LIMIT_GLOBAL" -lt "512"; then 433 JVM_HEAP_LIMIT_32=512 434 JVM_HEAP_LIMIT_64=512 435 fi 436 437 if test "x$BOOT_JDK_BITS" = "x32"; then 438 STACK_SIZE=$STACK_SIZE_32 439 JVM_MAX_HEAP=$JVM_HEAP_LIMIT_32 440 else 441 STACK_SIZE=$STACK_SIZE_64 442 JVM_MAX_HEAP=$JVM_HEAP_LIMIT_64 443 fi 444 ADD_JVM_ARG_IF_OK([-Xmx${JVM_MAX_HEAP}M],boot_jdk_jvmargs_big,[$JAVA]) 445 ADD_JVM_ARG_IF_OK([-XX:ThreadStackSize=$STACK_SIZE],boot_jdk_jvmargs_big,[$JAVA]) 446 447 AC_MSG_RESULT([$boot_jdk_jvmargs_big]) 448 449 JAVA_FLAGS_BIG=$boot_jdk_jvmargs_big 450 AC_SUBST(JAVA_FLAGS_BIG) 451 452 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then 453 BOOTCYCLE_MAX_HEAP=$JVM_HEAP_LIMIT_32 454 BOOTCYCLE_STACK_SIZE=$STACK_SIZE_32 455 else 456 BOOTCYCLE_MAX_HEAP=$JVM_HEAP_LIMIT_64 457 BOOTCYCLE_STACK_SIZE=$STACK_SIZE_64 458 fi 459 BOOTCYCLE_JVM_ARGS_BIG="$BOOTCYCLE_JVM_ARGS_BIG -Xmx${BOOTCYCLE_MAX_HEAP}M" 460 BOOTCYCLE_JVM_ARGS_BIG="$BOOTCYCLE_JVM_ARGS_BIG -XX:ThreadStackSize=$BOOTCYCLE_STACK_SIZE" 461 AC_MSG_CHECKING([flags for bootcycle boot jdk java command for big workloads]) 462 AC_MSG_RESULT([$BOOTCYCLE_JVM_ARGS_BIG]) 463 AC_SUBST(BOOTCYCLE_JVM_ARGS_BIG) 464 465 # By default, the main javac compilations use big 466 JAVA_FLAGS_JAVAC="$JAVA_FLAGS_BIG" 467 AC_SUBST(JAVA_FLAGS_JAVAC) 468 469 AC_MSG_CHECKING([flags for boot jdk java command for small workloads]) 470 471 # Use serial gc for small short lived tools if possible 472 ADD_JVM_ARG_IF_OK([-XX:+UseSerialGC],boot_jdk_jvmargs_small,[$JAVA]) 473 ADD_JVM_ARG_IF_OK([-Xms32M],boot_jdk_jvmargs_small,[$JAVA]) 474 ADD_JVM_ARG_IF_OK([-Xmx512M],boot_jdk_jvmargs_small,[$JAVA]) 475 ADD_JVM_ARG_IF_OK([-XX:TieredStopAtLevel=1],boot_jdk_jvmargs_small,[$JAVA]) 476 477 AC_MSG_RESULT([$boot_jdk_jvmargs_small]) 478 479 JAVA_FLAGS_SMALL=$boot_jdk_jvmargs_small 480 AC_SUBST(JAVA_FLAGS_SMALL) 481 482 JAVA_TOOL_FLAGS_SMALL="" 483 for f in $JAVA_FLAGS_SMALL; do 484 JAVA_TOOL_FLAGS_SMALL="$JAVA_TOOL_FLAGS_SMALL -J$f" 485 done 486 AC_SUBST(JAVA_TOOL_FLAGS_SMALL) 487]) 488 489# BUILD_JDK: the location of the latest JDK that can run 490# on the host system and supports the target class file version 491# generated in this JDK build. This variable should only be 492# used after the launchers are built. 493# 494 495# Execute the check given as argument, and verify the result. 496# If the JDK was previously found, do nothing. 497# $1 A command line (typically autoconf macro) to execute 498AC_DEFUN([BOOTJDK_CHECK_BUILD_JDK], 499[ 500 if test "x$BUILD_JDK_FOUND" = xno; then 501 # Execute the test 502 $1 503 504 # If previous step claimed to have found a JDK, check it to see if it seems to be valid. 505 if test "x$BUILD_JDK_FOUND" = xmaybe; then 506 # Do we have a bin/java? 507 if test ! -x "$BUILD_JDK/bin/java"; then 508 AC_MSG_NOTICE([Potential Build JDK found at $BUILD_JDK did not contain bin/java; ignoring]) 509 BUILD_JDK_FOUND=no 510 elif test ! -x "$BUILD_JDK/bin/jlink"; then 511 AC_MSG_NOTICE([Potential Build JDK found at $BUILD_JDK did not contain bin/jlink; ignoring]) 512 BUILD_JDK_FOUND=no 513 elif test ! -x "$BUILD_JDK/bin/jmod"; then 514 AC_MSG_NOTICE([Potential Build JDK found at $BUILD_JDK did not contain bin/jmod; ignoring]) 515 BUILD_JDK_FOUND=no 516 elif test ! -x "$BUILD_JDK/bin/javac"; then 517 # Do we have a bin/javac? 518 AC_MSG_NOTICE([Potential Build JDK found at $BUILD_JDK did not contain bin/javac; ignoring]) 519 AC_MSG_NOTICE([(This might be a JRE instead of an JDK)]) 520 BUILD_JDK_FOUND=no 521 else 522 # Oh, this is looking good! We probably have found a proper JDK. Is it the correct version? 523 BUILD_JDK_VERSION=`"$BUILD_JDK/bin/java" -version 2>&1 | $HEAD -n 1` 524 525 # Extra M4 quote needed to protect [] in grep expression. 526 [FOUND_CORRECT_VERSION=`echo $BUILD_JDK_VERSION | $EGREP "\"$VERSION_FEATURE([\.+-].*)?\""`] 527 if test "x$FOUND_CORRECT_VERSION" = x; then 528 AC_MSG_NOTICE([Potential Build JDK found at $BUILD_JDK is incorrect JDK version ($BUILD_JDK_VERSION); ignoring]) 529 AC_MSG_NOTICE([(Your Build JDK must be version $VERSION_FEATURE)]) 530 BUILD_JDK_FOUND=no 531 else 532 # We're done! 533 BUILD_JDK_FOUND=yes 534 BASIC_FIXUP_PATH(BUILD_JDK) 535 AC_MSG_CHECKING([for Build JDK]) 536 AC_MSG_RESULT([$BUILD_JDK]) 537 AC_MSG_CHECKING([Build JDK version]) 538 BUILD_JDK_VERSION=`"$BUILD_JDK/bin/java" -version 2>&1 | $TR '\n\r' ' '` 539 AC_MSG_RESULT([$BUILD_JDK_VERSION]) 540 fi # end check jdk version 541 fi # end check java 542 fi # end check build jdk found 543 fi 544]) 545 546# By default the BUILD_JDK is the JDK_OUTPUTDIR. If the target architecture 547# is different than the host system doing the build (e.g. cross-compilation), 548# a special BUILD_JDK is built as part of the build process. An external 549# prebuilt BUILD_JDK can also be supplied. 550AC_DEFUN([BOOTJDK_SETUP_BUILD_JDK], 551[ 552 AC_ARG_WITH(build-jdk, [AS_HELP_STRING([--with-build-jdk], 553 [path to JDK of same version as is being built@<:@the newly built JDK@:>@])]) 554 555 CREATE_BUILDJDK=false 556 EXTERNAL_BUILDJDK=false 557 BUILD_JDK_FOUND="no" 558 if test "x$with_build_jdk" != "x"; then 559 BOOTJDK_CHECK_BUILD_JDK([ 560 if test "x$with_build_jdk" != x; then 561 BUILD_JDK=$with_build_jdk 562 BUILD_JDK_FOUND=maybe 563 AC_MSG_NOTICE([Found potential Build JDK using configure arguments]) 564 fi]) 565 EXTERNAL_BUILDJDK=true 566 else 567 if test "x$COMPILE_TYPE" = "xcross"; then 568 BUILD_JDK="\$(BUILDJDK_OUTPUTDIR)/jdk" 569 BUILD_JDK_FOUND=yes 570 CREATE_BUILDJDK=true 571 AC_MSG_CHECKING([for Build JDK]) 572 AC_MSG_RESULT([yes, will build it for the host platform]) 573 else 574 BUILD_JDK="\$(JDK_OUTPUTDIR)" 575 BUILD_JDK_FOUND=yes 576 AC_MSG_CHECKING([for Build JDK]) 577 AC_MSG_RESULT([yes, will use output dir]) 578 fi 579 fi 580 581 JMOD="$BUILD_JDK/bin/jmod" 582 JLINK="$BUILD_JDK/bin/jlink" 583 AC_SUBST(JMOD) 584 AC_SUBST(JLINK) 585 586 if test "x$BUILD_JDK_FOUND" != "xyes"; then 587 AC_MSG_CHECKING([for Build JDK]) 588 AC_MSG_RESULT([no]) 589 AC_MSG_ERROR([Could not find a suitable Build JDK]) 590 fi 591 592 AC_SUBST(CREATE_BUILDJDK) 593 AC_SUBST(BUILD_JDK) 594 AC_SUBST(EXTERNAL_BUILDJDK) 595]) 596