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6684579: SoftReference processing can be made more efficient Summary: For current soft-ref clearing policies, we can decide at marking time if a soft-reference will definitely not be cleared, postponing the decision of whether it will definitely be cleared to the final reference processing phase. This can be especially beneficial in the case of concurrent collectors where the marking is usually concurrent but reference processing is usually not. Reviewed-by: jmasa
author ysr
date Thu, 20 Nov 2008 16:56:09 -0800
parents 4d20a3aaf1ab
children 167c2986d91b
line wrap: on
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#
# Copyright 1999-2008 Sun Microsystems, Inc.  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.
#
# 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
# CA 95054 USA or visit www.sun.com if you need additional information or
# have any questions.
#  
#

# Sets make macros for making debug version of VM

# Compiler specific DEBUG_CFLAGS are passed in from gcc.make, sparcWorks.make
DEBUG_CFLAGS/DEFAULT= $(DEBUG_CFLAGS)
DEBUG_CFLAGS/BYFILE = $(DEBUG_CFLAGS/$@)$(DEBUG_CFLAGS/DEFAULT$(DEBUG_CFLAGS/$@))

ifeq ("${Platform_compiler}", "sparcWorks")

ifeq ($(COMPILER_REV_NUMERIC),508)
  # SS11 SEGV when compiling with -g and -xarch=v8, using different backend
  DEBUG_CFLAGS/compileBroker.o = $(DEBUG_CFLAGS) -xO0
  DEBUG_CFLAGS/jvmtiTagMap.o   = $(DEBUG_CFLAGS) -xO0
endif
endif

CFLAGS += $(DEBUG_CFLAGS/BYFILE)

# Set the environment variable HOTSPARC_GENERIC to "true"
# to inhibit the effect of the previous line on CFLAGS.

# Linker mapfiles
MAPFILE = $(GAMMADIR)/make/solaris/makefiles/mapfile-vers \
          $(GAMMADIR)/make/solaris/makefiles/mapfile-vers-debug \
          $(GAMMADIR)/make/solaris/makefiles/mapfile-vers-nonproduct

# This mapfile is only needed when compiling with dtrace support,
# and mustn't be otherwise.
MAPFILE_DTRACE = $(GAMMADIR)/make/solaris/makefiles/mapfile-vers-$(TYPE)

G_SUFFIX =
VERSION = debug
SYSDEFS += -DASSERT -DDEBUG
PICFLAGS = DEFAULT