common/autoconf/hotspot.m4
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   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 # All valid JVM features, regardless of platform
  27 VALID_JVM_FEATURES="compiler1 compiler2 zero shark minimal dtrace jvmti jvmci \
  28     fprof vm-structs jni-check services management all-gcs nmt cds static-build"

  29 
  30 # All valid JVM variants
  31 VALID_JVM_VARIANTS="server client minimal core zero zeroshark custom"
  32 
  33 ###############################################################################
  34 # Check if the specified JVM variant should be built. To be used in shell if
  35 # constructs, like this:
  36 # if HOTSPOT_CHECK_JVM_VARIANT(server); then
  37 #
  38 # Only valid to use after HOTSPOT_SETUP_JVM_VARIANTS has setup variants.
  39 
  40 # Definition kept in one line to allow inlining in if statements.
  41 # Additional [] needed to keep m4 from mangling shell constructs.
  42 AC_DEFUN([HOTSPOT_CHECK_JVM_VARIANT],
  43 [ [ [[ " $JVM_VARIANTS " =~ " $1 " ]] ] ])
  44 
  45 ###############################################################################
  46 # Check if the specified JVM features are explicitly enabled. To be used in
  47 # shell if constructs, like this:
  48 # if HOTSPOT_CHECK_JVM_FEATURE(jvmti); then


  52 # Definition kept in one line to allow inlining in if statements.
  53 # Additional [] needed to keep m4 from mangling shell constructs.
  54 AC_DEFUN([HOTSPOT_CHECK_JVM_FEATURE],
  55 [ [ [[ " $JVM_FEATURES " =~ " $1 " ]] ] ])
  56 
  57 ###############################################################################
  58 # Check which variants of the JVM that we want to build. Available variants are:
  59 #   server: normal interpreter, and a tiered C1/C2 compiler
  60 #   client: normal interpreter, and C1 (no C2 compiler)
  61 #   minimal: reduced form of client with optional features stripped out
  62 #   core: normal interpreter only, no compiler
  63 #   zero: C++ based interpreter only, no compiler
  64 #   zeroshark: C++ based interpreter, and a llvm-based compiler
  65 #   custom: baseline JVM with no default features
  66 #
  67 AC_DEFUN_ONCE([HOTSPOT_SETUP_JVM_VARIANTS],
  68 [
  69   AC_ARG_WITH([jvm-variants], [AS_HELP_STRING([--with-jvm-variants],
  70       [JVM variants (separated by commas) to build (server,client,minimal,core,zero,zeroshark,custom) @<:@server@:>@])])
  71 


  72   if test "x$with_jvm_variants" = x; then
  73     with_jvm_variants="server"
  74   fi
  75   JVM_VARIANTS_OPT="$with_jvm_variants"
  76 
  77   # Has the user listed more than one variant?
  78   # Additional [] needed to keep m4 from mangling shell constructs.
  79   if [ [[ "$JVM_VARIANTS_OPT" =~ "," ]] ]; then
  80     BUILDING_MULTIPLE_JVM_VARIANTS=true
  81   else
  82     BUILDING_MULTIPLE_JVM_VARIANTS=false
  83   fi
  84   # Replace the commas with AND for use in the build directory name.
  85   JVM_VARIANTS_WITH_AND=`$ECHO "$JVM_VARIANTS_OPT" | $SED -e 's/,/AND/g'`
  86 
  87   AC_MSG_CHECKING([which variants of the JVM to build])
  88   # JVM_VARIANTS is a space-separated list.
  89   # Also use minimal, not minimal1 (which is kept for backwards compatibility).
  90   JVM_VARIANTS=`$ECHO $JVM_VARIANTS_OPT | $SED -e 's/,/ /g' -e 's/minimal1/minimal/'`
  91   AC_MSG_RESULT([$JVM_VARIANTS])


 187     AC_MSG_ERROR([Invalid value for --enable-dtrace: $enable_dtrace])
 188   fi
 189   AC_SUBST(INCLUDE_DTRACE)
 190 ])
 191 
 192 ###############################################################################
 193 # Set up all JVM features for each JVM variant.
 194 #
 195 AC_DEFUN_ONCE([HOTSPOT_SETUP_JVM_FEATURES],
 196 [
 197   # The user can in some cases supply additional jvm features. For the custom
 198   # variant, this defines the entire variant.
 199   AC_ARG_WITH([jvm-features], [AS_HELP_STRING([--with-jvm-features],
 200       [additional JVM features to enable (separated by comma),  use '--help' to show possible values @<:@none@:>@])])
 201   if test "x$with_jvm_features" != x; then
 202     AC_MSG_CHECKING([additional JVM features])
 203     JVM_FEATURES=`$ECHO $with_jvm_features | $SED -e 's/,/ /g'`
 204     AC_MSG_RESULT([$JVM_FEATURES])
 205   fi
 206 













 207   # Verify that dependencies are met for explicitly set features.
 208   if HOTSPOT_CHECK_JVM_FEATURE(jvmti) && ! HOTSPOT_CHECK_JVM_FEATURE(services); then
 209     AC_MSG_ERROR([Specified JVM feature 'jvmti' requires feature 'services'])
 210   fi
 211 
 212   if HOTSPOT_CHECK_JVM_FEATURE(management) && ! HOTSPOT_CHECK_JVM_FEATURE(nmt); then
 213     AC_MSG_ERROR([Specified JVM feature 'management' requires feature 'nmt'])
 214   fi
 215 
 216   if HOTSPOT_CHECK_JVM_FEATURE(jvmci) && ! (HOTSPOT_CHECK_JVM_FEATURE(compiler1) || HOTSPOT_CHECK_JVM_FEATURE(compiler2)); then
 217     AC_MSG_ERROR([Specified JVM feature 'jvmci' requires feature 'compiler2' or 'compiler1'])
 218   fi
 219 
 220   if HOTSPOT_CHECK_JVM_FEATURE(compiler2) && ! HOTSPOT_CHECK_JVM_FEATURE(all-gcs); then
 221     AC_MSG_ERROR([Specified JVM feature 'compiler2' requires feature 'all-gcs'])
 222   fi
 223 
 224   if HOTSPOT_CHECK_JVM_FEATURE(vm-structs) && ! HOTSPOT_CHECK_JVM_FEATURE(all-gcs); then
 225     AC_MSG_ERROR([Specified JVM feature 'vm-structs' requires feature 'all-gcs'])
 226   fi


 246     if HOTSPOT_CHECK_JVM_FEATURE(zero); then
 247       AC_MSG_ERROR([To enable zero/zeroshark, you must use --with-jvm-variants=zero/zeroshark])
 248     fi
 249   fi
 250 
 251   if ! HOTSPOT_CHECK_JVM_VARIANT(zeroshark); then
 252     if HOTSPOT_CHECK_JVM_FEATURE(shark); then
 253       AC_MSG_ERROR([To enable shark, you must use --with-jvm-variants=zeroshark])
 254     fi
 255   fi
 256 
 257   # Only enable jvmci on x86_64, sparcv9 and aarch64.
 258   if test "x$OPENJDK_TARGET_CPU" = "xx86_64" || \
 259       test "x$OPENJDK_TARGET_CPU" = "xsparcv9" || \
 260       test "x$OPENJDK_TARGET_CPU" = "xaarch64" ; then
 261     JVM_FEATURES_jvmci="jvmci"
 262   else
 263     JVM_FEATURES_jvmci=""
 264   fi
 265 







 266   # All variants but minimal (and custom) get these features
 267   NON_MINIMAL_FEATURES="$NON_MINIMAL_FEATURES jvmti fprof vm-structs jni-check services management all-gcs nmt cds"
 268 
 269   # Enable features depending on variant.
 270   JVM_FEATURES_server="compiler1 compiler2 $NON_MINIMAL_FEATURES $JVM_FEATURES $JVM_FEATURES_jvmci"
 271   JVM_FEATURES_client="compiler1 $NON_MINIMAL_FEATURES $JVM_FEATURES $JVM_FEATURES_jvmci"
 272   JVM_FEATURES_core="$NON_MINIMAL_FEATURES $JVM_FEATURES"
 273   JVM_FEATURES_minimal="compiler1 minimal $JVM_FEATURES"
 274   JVM_FEATURES_zero="zero $NON_MINIMAL_FEATURES $JVM_FEATURES"
 275   JVM_FEATURES_zeroshark="zero shark $NON_MINIMAL_FEATURES $JVM_FEATURES"
 276   JVM_FEATURES_custom="$JVM_FEATURES"
 277 
 278   AC_SUBST(JVM_FEATURES_server)
 279   AC_SUBST(JVM_FEATURES_client)
 280   AC_SUBST(JVM_FEATURES_core)
 281   AC_SUBST(JVM_FEATURES_minimal)
 282   AC_SUBST(JVM_FEATURES_zero)
 283   AC_SUBST(JVM_FEATURES_zeroshark)
 284   AC_SUBST(JVM_FEATURES_custom)
 285 
 286   # Used for verification of Makefiles by check-jvm-feature
 287   AC_SUBST(VALID_JVM_FEATURES)
 288 
 289   # We don't support --with-jvm-interpreter anymore, use zero instead.
 290   BASIC_DEPRECATED_ARG_WITH(jvm-interpreter)
 291 ])
 292 
 293 ###############################################################################


 301   JVM_FEATURES_core="$($ECHO $($PRINTF '%s\n' $JVM_FEATURES_core | $SORT -u))"
 302   JVM_FEATURES_minimal="$($ECHO $($PRINTF '%s\n' $JVM_FEATURES_minimal | $SORT -u))"
 303   JVM_FEATURES_zero="$($ECHO $($PRINTF '%s\n' $JVM_FEATURES_zero | $SORT -u))"
 304   JVM_FEATURES_zeroshark="$($ECHO $($PRINTF '%s\n' $JVM_FEATURES_zeroshark | $SORT -u))"
 305   JVM_FEATURES_custom="$($ECHO $($PRINTF '%s\n' $JVM_FEATURES_custom | $SORT -u))"
 306 
 307   # Validate features
 308   for variant in $JVM_VARIANTS; do
 309     AC_MSG_CHECKING([JVM features for JVM variant '$variant'])
 310     features_var_name=JVM_FEATURES_$variant
 311     JVM_FEATURES_TO_TEST=${!features_var_name}
 312     AC_MSG_RESULT([$JVM_FEATURES_TO_TEST])
 313     NEEDLE=${VALID_JVM_FEATURES// /$'\n'}
 314     STACK=${JVM_FEATURES_TO_TEST// /$'\n'}
 315     INVALID_FEATURES=`$GREP -Fvx "${NEEDLE}" <<< "${STACK}"`
 316     if test "x$INVALID_FEATURES" != x; then
 317       AC_MSG_ERROR([Invalid JVM feature(s): $INVALID_FEATURES])
 318     fi
 319   done
 320 ])



























 321 
 322 ################################################################################
 323 # Check if gtest should be built
 324 #
 325 AC_DEFUN_ONCE([HOTSPOT_ENABLE_DISABLE_GTEST],
 326 [
 327   AC_ARG_ENABLE([hotspot-gtest], [AS_HELP_STRING([--disable-hotspot-gtest],
 328       [Disables building of the Hotspot unit tests])])
 329 
 330   if test -e "$HOTSPOT_TOPDIR/test/native"; then
 331     GTEST_DIR_EXISTS="true"
 332   else
 333     GTEST_DIR_EXISTS="false"
 334   fi
 335 
 336   AC_MSG_CHECKING([if Hotspot gtest unit tests should be built])
 337   if test "x$enable_hotspot_gtest" = "xyes"; then
 338     if test "x$GTEST_DIR_EXISTS" = "xtrue"; then
 339       AC_MSG_RESULT([yes, forced])
 340       BUILD_GTEST="true"


   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 # All valid JVM features, regardless of platform
  27 VALID_JVM_FEATURES="compiler1 compiler2 zero shark minimal dtrace jvmti jvmci \
  28     fprof vm-structs jni-check services management all-gcs nmt cds \
  29     static-build link-time-opt"
  30 
  31 # All valid JVM variants
  32 VALID_JVM_VARIANTS="server client minimal core zero zeroshark custom"
  33 
  34 ###############################################################################
  35 # Check if the specified JVM variant should be built. To be used in shell if
  36 # constructs, like this:
  37 # if HOTSPOT_CHECK_JVM_VARIANT(server); then
  38 #
  39 # Only valid to use after HOTSPOT_SETUP_JVM_VARIANTS has setup variants.
  40 
  41 # Definition kept in one line to allow inlining in if statements.
  42 # Additional [] needed to keep m4 from mangling shell constructs.
  43 AC_DEFUN([HOTSPOT_CHECK_JVM_VARIANT],
  44 [ [ [[ " $JVM_VARIANTS " =~ " $1 " ]] ] ])
  45 
  46 ###############################################################################
  47 # Check if the specified JVM features are explicitly enabled. To be used in
  48 # shell if constructs, like this:
  49 # if HOTSPOT_CHECK_JVM_FEATURE(jvmti); then


  53 # Definition kept in one line to allow inlining in if statements.
  54 # Additional [] needed to keep m4 from mangling shell constructs.
  55 AC_DEFUN([HOTSPOT_CHECK_JVM_FEATURE],
  56 [ [ [[ " $JVM_FEATURES " =~ " $1 " ]] ] ])
  57 
  58 ###############################################################################
  59 # Check which variants of the JVM that we want to build. Available variants are:
  60 #   server: normal interpreter, and a tiered C1/C2 compiler
  61 #   client: normal interpreter, and C1 (no C2 compiler)
  62 #   minimal: reduced form of client with optional features stripped out
  63 #   core: normal interpreter only, no compiler
  64 #   zero: C++ based interpreter only, no compiler
  65 #   zeroshark: C++ based interpreter, and a llvm-based compiler
  66 #   custom: baseline JVM with no default features
  67 #
  68 AC_DEFUN_ONCE([HOTSPOT_SETUP_JVM_VARIANTS],
  69 [
  70   AC_ARG_WITH([jvm-variants], [AS_HELP_STRING([--with-jvm-variants],
  71       [JVM variants (separated by commas) to build (server,client,minimal,core,zero,zeroshark,custom) @<:@server@:>@])])
  72 
  73   SETUP_HOTSPOT_TARGET_CPU_PORT
  74 
  75   if test "x$with_jvm_variants" = x; then
  76     with_jvm_variants="server"
  77   fi
  78   JVM_VARIANTS_OPT="$with_jvm_variants"
  79 
  80   # Has the user listed more than one variant?
  81   # Additional [] needed to keep m4 from mangling shell constructs.
  82   if [ [[ "$JVM_VARIANTS_OPT" =~ "," ]] ]; then
  83     BUILDING_MULTIPLE_JVM_VARIANTS=true
  84   else
  85     BUILDING_MULTIPLE_JVM_VARIANTS=false
  86   fi
  87   # Replace the commas with AND for use in the build directory name.
  88   JVM_VARIANTS_WITH_AND=`$ECHO "$JVM_VARIANTS_OPT" | $SED -e 's/,/AND/g'`
  89 
  90   AC_MSG_CHECKING([which variants of the JVM to build])
  91   # JVM_VARIANTS is a space-separated list.
  92   # Also use minimal, not minimal1 (which is kept for backwards compatibility).
  93   JVM_VARIANTS=`$ECHO $JVM_VARIANTS_OPT | $SED -e 's/,/ /g' -e 's/minimal1/minimal/'`
  94   AC_MSG_RESULT([$JVM_VARIANTS])


 190     AC_MSG_ERROR([Invalid value for --enable-dtrace: $enable_dtrace])
 191   fi
 192   AC_SUBST(INCLUDE_DTRACE)
 193 ])
 194 
 195 ###############################################################################
 196 # Set up all JVM features for each JVM variant.
 197 #
 198 AC_DEFUN_ONCE([HOTSPOT_SETUP_JVM_FEATURES],
 199 [
 200   # The user can in some cases supply additional jvm features. For the custom
 201   # variant, this defines the entire variant.
 202   AC_ARG_WITH([jvm-features], [AS_HELP_STRING([--with-jvm-features],
 203       [additional JVM features to enable (separated by comma),  use '--help' to show possible values @<:@none@:>@])])
 204   if test "x$with_jvm_features" != x; then
 205     AC_MSG_CHECKING([additional JVM features])
 206     JVM_FEATURES=`$ECHO $with_jvm_features | $SED -e 's/,/ /g'`
 207     AC_MSG_RESULT([$JVM_FEATURES])
 208   fi
 209 
 210   # Override hotspot cpu definitions for ARM platforms
 211   if test "x$OPENJDK_TARGET_CPU" = xarm; then
 212     HOTSPOT_TARGET_CPU=arm_32
 213     HOTSPOT_TARGET_CPU_DEFINE="ARM32"
 214     JVM_LDFLAGS="$JVM_LDFLAGS -fsigned-char"
 215     JVM_CFLAGS="$JVM_CFLAGS -DARM -fsigned-char"
 216   elif test "x$OPENJDK_TARGET_CPU" = xaarch64 && test "x$with_cpu_port" = xarm64; then
 217     HOTSPOT_TARGET_CPU=arm_64
 218     HOTSPOT_TARGET_CPU_ARCH=arm
 219     JVM_LDFLAGS="$JVM_LDFLAGS -fsigned-char"
 220     JVM_CFLAGS="$JVM_CFLAGS -DARM -fsigned-char"
 221   fi
 222 
 223   # Verify that dependencies are met for explicitly set features.
 224   if HOTSPOT_CHECK_JVM_FEATURE(jvmti) && ! HOTSPOT_CHECK_JVM_FEATURE(services); then
 225     AC_MSG_ERROR([Specified JVM feature 'jvmti' requires feature 'services'])
 226   fi
 227 
 228   if HOTSPOT_CHECK_JVM_FEATURE(management) && ! HOTSPOT_CHECK_JVM_FEATURE(nmt); then
 229     AC_MSG_ERROR([Specified JVM feature 'management' requires feature 'nmt'])
 230   fi
 231 
 232   if HOTSPOT_CHECK_JVM_FEATURE(jvmci) && ! (HOTSPOT_CHECK_JVM_FEATURE(compiler1) || HOTSPOT_CHECK_JVM_FEATURE(compiler2)); then
 233     AC_MSG_ERROR([Specified JVM feature 'jvmci' requires feature 'compiler2' or 'compiler1'])
 234   fi
 235 
 236   if HOTSPOT_CHECK_JVM_FEATURE(compiler2) && ! HOTSPOT_CHECK_JVM_FEATURE(all-gcs); then
 237     AC_MSG_ERROR([Specified JVM feature 'compiler2' requires feature 'all-gcs'])
 238   fi
 239 
 240   if HOTSPOT_CHECK_JVM_FEATURE(vm-structs) && ! HOTSPOT_CHECK_JVM_FEATURE(all-gcs); then
 241     AC_MSG_ERROR([Specified JVM feature 'vm-structs' requires feature 'all-gcs'])
 242   fi


 262     if HOTSPOT_CHECK_JVM_FEATURE(zero); then
 263       AC_MSG_ERROR([To enable zero/zeroshark, you must use --with-jvm-variants=zero/zeroshark])
 264     fi
 265   fi
 266 
 267   if ! HOTSPOT_CHECK_JVM_VARIANT(zeroshark); then
 268     if HOTSPOT_CHECK_JVM_FEATURE(shark); then
 269       AC_MSG_ERROR([To enable shark, you must use --with-jvm-variants=zeroshark])
 270     fi
 271   fi
 272 
 273   # Only enable jvmci on x86_64, sparcv9 and aarch64.
 274   if test "x$OPENJDK_TARGET_CPU" = "xx86_64" || \
 275       test "x$OPENJDK_TARGET_CPU" = "xsparcv9" || \
 276       test "x$OPENJDK_TARGET_CPU" = "xaarch64" ; then
 277     JVM_FEATURES_jvmci="jvmci"
 278   else
 279     JVM_FEATURES_jvmci=""
 280   fi
 281 
 282   if test "x$OPENJDK_TARGET_CPU" = xarm ; then
 283     # Default to use link time optimizations on minimal on arm
 284     JVM_FEATURES_link_time_opt="link-time-opt"
 285   else
 286     JVM_FEATURES_link_time_opt=""
 287   fi
 288 
 289   # All variants but minimal (and custom) get these features
 290   NON_MINIMAL_FEATURES="$NON_MINIMAL_FEATURES jvmti fprof vm-structs jni-check services management all-gcs nmt cds"
 291 
 292   # Enable features depending on variant.
 293   JVM_FEATURES_server="compiler1 compiler2 $NON_MINIMAL_FEATURES $JVM_FEATURES $JVM_FEATURES_jvmci"
 294   JVM_FEATURES_client="compiler1 $NON_MINIMAL_FEATURES $JVM_FEATURES $JVM_FEATURES_jvmci"
 295   JVM_FEATURES_core="$NON_MINIMAL_FEATURES $JVM_FEATURES"
 296   JVM_FEATURES_minimal="compiler1 minimal $JVM_FEATURES $JVM_FEATURES_link_time_opt"
 297   JVM_FEATURES_zero="zero $NON_MINIMAL_FEATURES $JVM_FEATURES"
 298   JVM_FEATURES_zeroshark="zero shark $NON_MINIMAL_FEATURES $JVM_FEATURES"
 299   JVM_FEATURES_custom="$JVM_FEATURES"
 300 
 301   AC_SUBST(JVM_FEATURES_server)
 302   AC_SUBST(JVM_FEATURES_client)
 303   AC_SUBST(JVM_FEATURES_core)
 304   AC_SUBST(JVM_FEATURES_minimal)
 305   AC_SUBST(JVM_FEATURES_zero)
 306   AC_SUBST(JVM_FEATURES_zeroshark)
 307   AC_SUBST(JVM_FEATURES_custom)
 308 
 309   # Used for verification of Makefiles by check-jvm-feature
 310   AC_SUBST(VALID_JVM_FEATURES)
 311 
 312   # We don't support --with-jvm-interpreter anymore, use zero instead.
 313   BASIC_DEPRECATED_ARG_WITH(jvm-interpreter)
 314 ])
 315 
 316 ###############################################################################


 324   JVM_FEATURES_core="$($ECHO $($PRINTF '%s\n' $JVM_FEATURES_core | $SORT -u))"
 325   JVM_FEATURES_minimal="$($ECHO $($PRINTF '%s\n' $JVM_FEATURES_minimal | $SORT -u))"
 326   JVM_FEATURES_zero="$($ECHO $($PRINTF '%s\n' $JVM_FEATURES_zero | $SORT -u))"
 327   JVM_FEATURES_zeroshark="$($ECHO $($PRINTF '%s\n' $JVM_FEATURES_zeroshark | $SORT -u))"
 328   JVM_FEATURES_custom="$($ECHO $($PRINTF '%s\n' $JVM_FEATURES_custom | $SORT -u))"
 329 
 330   # Validate features
 331   for variant in $JVM_VARIANTS; do
 332     AC_MSG_CHECKING([JVM features for JVM variant '$variant'])
 333     features_var_name=JVM_FEATURES_$variant
 334     JVM_FEATURES_TO_TEST=${!features_var_name}
 335     AC_MSG_RESULT([$JVM_FEATURES_TO_TEST])
 336     NEEDLE=${VALID_JVM_FEATURES// /$'\n'}
 337     STACK=${JVM_FEATURES_TO_TEST// /$'\n'}
 338     INVALID_FEATURES=`$GREP -Fvx "${NEEDLE}" <<< "${STACK}"`
 339     if test "x$INVALID_FEATURES" != x; then
 340       AC_MSG_ERROR([Invalid JVM feature(s): $INVALID_FEATURES])
 341     fi
 342   done
 343 ])
 344 
 345 ################################################################################
 346 #
 347 # Specify which sources will be used to build the 64-bit ARM port
 348 #
 349 # --with-cpu-port=arm64   will use hotspot/src/cpu/arm
 350 # --with-cpu-port=aarch64 will use hotspot/src/cpu/aarch64
 351 #
 352 AC_DEFUN([SETUP_HOTSPOT_TARGET_CPU_PORT],
 353 [
 354   AC_ARG_WITH(cpu-port, [AS_HELP_STRING([--with-cpu-port],
 355       [specify sources to use for Hotspot 64-bit ARM port (arm64,aarch64) @<:@aarch64@:>@ ])])
 356 
 357   if test "x$with_cpu_port" != x; then
 358     if test "x$OPENJDK_TARGET_CPU" != xaarch64; then
 359       AC_MSG_ERROR([--with-cpu-port only available on aarch64])
 360     fi
 361 
 362     if test "x$with_cpu_port" != x; then
 363       if test "x$with_cpu_port" != xarm64 && \
 364           test "x$with_cpu_port" != xaarch64; then
 365         AC_MSG_ERROR([--with-cpu-port must specify arm64 or aarch64])
 366       fi
 367     fi
 368   fi
 369 ])
 370 
 371 
 372 ################################################################################
 373 # Check if gtest should be built
 374 #
 375 AC_DEFUN_ONCE([HOTSPOT_ENABLE_DISABLE_GTEST],
 376 [
 377   AC_ARG_ENABLE([hotspot-gtest], [AS_HELP_STRING([--disable-hotspot-gtest],
 378       [Disables building of the Hotspot unit tests])])
 379 
 380   if test -e "$HOTSPOT_TOPDIR/test/native"; then
 381     GTEST_DIR_EXISTS="true"
 382   else
 383     GTEST_DIR_EXISTS="false"
 384   fi
 385 
 386   AC_MSG_CHECKING([if Hotspot gtest unit tests should be built])
 387   if test "x$enable_hotspot_gtest" = "xyes"; then
 388     if test "x$GTEST_DIR_EXISTS" = "xtrue"; then
 389       AC_MSG_RESULT([yes, forced])
 390       BUILD_GTEST="true"
common/autoconf/hotspot.m4
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