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7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot || !gch->incremental_collection_failed()) 7002546: regression on SpecJbb2005 on 7b118 comparing to 7b117 on small heaps Summary: Relaxed assertion checking related to incremental_collection_failed flag to allow for ExplicitGCInvokesConcurrent behaviour where we do not want a failing scavenge to bail to a stop-world collection. Parameterized incremental_collection_will_fail() so we can selectively use, or not use, as appropriate, the statistical prediction at specific use sites. This essentially reverts the scavenge bail-out logic to what it was prior to some recent changes that had inadvertently started using the statistical prediction which can be noisy in the presence of bursty loads. Added some associated verbose non-product debugging messages. Reviewed-by: johnc, tonyp
author ysr
date Tue, 07 Dec 2010 21:55:53 -0800
parents c18cbe5936b8
children 5a98bf7d847b
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#
# Copyright (c) 2008, 2009, 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.
#
# 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.
#  
#

# Single gnu makefile for solaris, linux and windows (windows requires cygwin and mingw)

# Default arch; it is changed below as needed.
ARCH		= i386
OS		= $(shell uname)

## OS = SunOS ##
ifeq		($(OS),SunOS)
CPU             = $(shell uname -p)
ARCH1=$(CPU:i586=i386)
ARCH=$(ARCH1:i686=i386)
OS		= solaris
CC 		= cc
CFLAGS		+= -KPIC
ifdef LP64
ifeq ($(ARCH),sparc)
ARCH            = sparcv9
endif
ifeq ($(ARCH),i386)
ARCH            = amd64
endif
endif
CFLAGS/sparcv9	+= -xarch=v9
CFLAGS/amd64	+= -m64
CFLAGS		+= $(CFLAGS/$(ARCH))
DLDFLAGS	+= -G
LDFLAGS         += -ldl
OUTFLAGS	+= -o $@
LIB_EXT		= .so
else
## OS = Linux ##
ifeq		($(OS),Linux)
ifneq           ($(MINGW),)
LIB_EXT		= .dll
CPPFLAGS += -I$(TARGET_DIR)/include
LDFLAGS += -L$(TARGET_DIR)/lib
OS=windows
ifneq           ($(findstring x86_64-,$(MINGW)),)
ARCH=amd64
else
ARCH=i386
endif
CC 		= $(MINGW)-gcc
CONFIGURE_ARGS= --host=$(MINGW) --target=$(MINGW)
else
CPU             = $(shell uname -m)
ARCH1=$(CPU:x86_64=amd64)
ARCH=$(ARCH1:i686=i386)
CFLAGS/i386	+= -m32
CFLAGS/sparc	+= -m32
CFLAGS/sparcv9	+= -m64
CFLAGS/amd64	+= -m64
CFLAGS		+= $(CFLAGS/$(ARCH))
CFLAGS		+= -fPIC
OS		= linux
LIB_EXT		= .so
CC 		= gcc
endif
CFLAGS		+= -O
DLDFLAGS	+= -shared
LDFLAGS         += -ldl
OUTFLAGS	+= -o $@
## OS = Windows ##
else   # !SunOS, !Linux => Windows
OS		= windows
CC		= gcc
#CPPFLAGS	+= /D"WIN32" /D"_WINDOWS" /D"DEBUG" /D"NDEBUG"
CFLAGS		+=  /nologo /MD /W3 /WX /O2 /Fo$(@:.dll=.obj) /Gi-
CFLAGS		+= LIBARCH=\"$(LIBARCH)\""
DLDFLAGS	+= /dll /subsystem:windows /incremental:no \
			/export:decode_instruction
OUTFLAGS	+= /link /out:$@
LIB_EXT		= .dll
endif	# Linux
endif	# SunOS

LIBARCH		= $(ARCH)
ifdef		LP64
LIBARCH64/sparc	= sparcv9
LIBARCH64/i386	= amd64
LIBARCH64	= $(LIBARCH64/$(ARCH))
ifneq		($(LIBARCH64),)
LIBARCH		= $(LIBARCH64)
endif   # LIBARCH64/$(ARCH)
endif   # LP64

JDKARCH=$(LIBARCH:i386=i586)

ifeq            ($(BINUTILS),)
# Pop all the way out of the workspace to look for binutils.
# ...You probably want to override this setting.
BINUTILSDIR	= $(shell cd build/binutils;pwd)
else
BINUTILSDIR	= $(shell cd $(BINUTILS);pwd)
endif

CPPFLAGS	+= -I$(BINUTILSDIR)/include -I$(BINUTILS)/bfd -I$(TARGET_DIR)/bfd
CPPFLAGS	+= -DLIBARCH_$(LIBARCH) -DLIBARCH=\"$(LIBARCH)\" -DLIB_EXT=\"$(LIB_EXT)\"

TARGET_DIR	= build/$(OS)-$(JDKARCH)
TARGET		= $(TARGET_DIR)/hsdis-$(LIBARCH)$(LIB_EXT)

SOURCE		= hsdis.c

LIBRARIES =	$(TARGET_DIR)/bfd/libbfd.a \
		$(TARGET_DIR)/opcodes/libopcodes.a \
		$(TARGET_DIR)/libiberty/libiberty.a

DEMO_TARGET	= $(TARGET_DIR)/hsdis-demo
DEMO_SOURCE	= hsdis-demo.c

.PHONY:  all clean demo both

all:  $(TARGET)

both: all all64

%64:
	$(MAKE) LP64=1 ${@:%64=%}

demo: $(TARGET) $(DEMO_TARGET)

$(LIBRARIES): $(TARGET_DIR) $(TARGET_DIR)/Makefile
	if [ ! -f $@ ]; then cd $(TARGET_DIR); make all-opcodes; fi

$(TARGET_DIR)/Makefile:
	(cd $(TARGET_DIR); CC=$(CC) CFLAGS="$(CFLAGS)" $(BINUTILSDIR)/configure --disable-nls $(CONFIGURE_ARGS))

$(TARGET): $(SOURCE) $(LIBS) $(LIBRARIES) $(TARGET_DIR)
	$(CC) $(OUTFLAGS) $(CPPFLAGS) $(CFLAGS) $(SOURCE) $(DLDFLAGS) $(LIBRARIES)

$(DEMO_TARGET): $(DEMO_SOURCE) $(TARGET) $(TARGET_DIR)
	$(CC) $(OUTFLAGS) -DTARGET_DIR=\"$(TARGET_DIR)\" $(CPPFLAGS) -g $(CFLAGS/$(ARCH)) $(DEMO_SOURCE) $(LDFLAGS)

$(TARGET_DIR):
	[ -d $@ ] || mkdir -p $@

clean:
	rm -rf $(TARGET_DIR)