8214542: JFR: Old Object Sample event slow on a deep heap in debug builds
Reviewed-by: egahlin, rwestberg
## Copyright (c) 2011, 2018, 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. Oracle designates this# particular file as subject to the "Classpath" exception as provided# by Oracle in the LICENSE file that accompanied this code.## 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.#include LibCommon.gmk################################################################################$(eval $(call SetupJdkLibrary, BUILD_LIBUNPACK, \ NAME := unpack, \ EXTRA_SRC := common-unpack, \ TOOLCHAIN := TOOLCHAIN_LINK_CXX, \ OPTIMIZATION := LOW, \ CFLAGS := $(CXXFLAGS_JDKLIB) \ -DNO_ZLIB -DUNPACK_JNI -DFULL, \ CFLAGS_release := -DPRODUCT, \ EXTRA_HEADER_DIRS := $(call GetJavaHeaderDir, java.base), \ DISABLED_WARNINGS_gcc := implicit-fallthrough, \ DISABLED_WARNINGS_clang := format-nonliteral, \ LDFLAGS := $(LDFLAGS_JDKLIB) $(LDFLAGS_CXX_JDK) \ $(call SET_SHARED_LIBRARY_ORIGIN), \ LDFLAGS_windows := -map:$(SUPPORT_OUTPUTDIR)/native/$(MODULE)/unpack.map -debug, \ LIBS_unix := -ljvm $(LIBCXX) -ljava, \ LIBS_windows := jvm.lib $(WIN_JAVA_LIB), \))$(BUILD_LIBUNPACK): $(call FindLib, java.base, java)TARGETS += $(BUILD_LIBUNPACK)################################################################################