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view make/linux/makefiles/product.make @ 1994:6cd6d394f280
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 | 126ea7725993 |
| children | 0a8e0d4345b3 |
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# # Copyright (c) 1999, 2008, 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. # # # Sets make macros for making optimized version of Gamma VM # (This is the "product", not the "release" version.) # Compiler specific OPT_CFLAGS are passed in from gcc.make, sparcWorks.make OPT_CFLAGS/DEFAULT= $(OPT_CFLAGS) OPT_CFLAGS/BYFILE = $(OPT_CFLAGS/$@)$(OPT_CFLAGS/DEFAULT$(OPT_CFLAGS/$@)) # (OPT_CFLAGS/SLOWER is also available, to alter compilation of buggy files) # If you set HOTSPARC_GENERIC=yes, you disable all OPT_CFLAGS settings CFLAGS$(HOTSPARC_GENERIC) += $(OPT_CFLAGS/BYFILE) # Set the environment variable HOTSPARC_GENERIC to "true" # to inhibit the effect of the previous line on CFLAGS. # Linker mapfile MAPFILE = $(GAMMADIR)/make/linux/makefiles/mapfile-vers-product G_SUFFIX = SYSDEFS += -DPRODUCT VERSION = optimized # use -g to strip library as -x will discard its symbol table; -x is fine for # executables. ifdef CROSS_COMPILE_ARCH STRIP = $(ALT_COMPILER_PATH)/strip else STRIP = strip endif STRIP_LIBJVM = $(STRIP) -g $@ || exit 1; STRIP_AOUT = $(STRIP) -x $@ || exit 1; # Don't strip in VM build; JDK build will strip libraries later # LINK_LIB.CC/POST_HOOK += $(STRIP_$(LINK_INTO))