On 2013-01-10, at 3:56 AM, Staffan Larsen <staffan.lar...@oracle.com> wrote:
> See: http://bugs.sun.com/view_bug.do?bug_id=8004490 > > Patch: http://hg.openjdk.java.net/jdk8/build/rev/2d9bb72b4e34 > > /Staffan I tried the workaround in this patch, and it did not seem to result in a debuggable hotspot. I also tried the steps you recommended with jdk8-build (last night, checked out fresh), both exactly as you specified (minus closed repositories) and with the HOTSPOT_MAKE_ARGS=universal_fastdebug workaround from the bug report mentioned previously ( http://bugs.sun.com/view_bug.do?bug_id=8004490 ) This did not work either. I did a little looking, and "compile.o" is about 20 times larger in the working old-build system, and the output of "symbols compile.o" has 6000 lines instead of 1000. I then did some builds with logging turned on to get a look at the compilation line: not-debuggable compilation line: CCACHE_COMPRESS=1 CCACHE_SLOPPINESS=time_macros /opt/local/bin/ccache /Developer/usr/bin/g++-4.2 -D_ALLBSD_SOURCE -D_GNU_SOURCE -DAMD64 -DASSERT -DDEBUG -I. -IROOT/hotspot/src/share/vm/prims -IROOT/hotspot/src/share/vm -IROOT/hotspot/src/share/vm/precompiled -IROOT/hotspot/src/cpu/x86/vm -IROOT/hotspot/src/os_cpu/bsd_x86/vm -IROOT/hotspot/src/os/bsd/vm -IROOT/hotspot/src/os/posix/vm -I../generated -DHOTSPOT_RELEASE_VERSION="\"25.0-b14\"" -DHOTSPOT_BUILD_TARGET="\"jvmg\"" -DHOTSPOT_BUILD_USER="\"dr2chase\"" -DHOTSPOT_LIB_ARCH=\"amd64\" -DHOTSPOT_VM_DISTRO="\"OpenJDK\"" -DTARGET_OS_FAMILY_bsd -DTARGET_ARCH_x86 -DTARGET_ARCH_MODEL_x86_64 -DTARGET_OS_ARCH_bsd_x86 -DTARGET_OS_ARCH_MODEL_bsd_x86_64 -DTARGET_COMPILER_gcc -DCOMPILER2 -DCOMPILER1 -fPIC -fno-rtti -fno-exceptions -pthread -fcheck-new -m64 -pipe -fno-strict-aliasing -g -D_NMT_NOINLINE_ -DVM_LITTLE_ENDIAN -D_LP64=1 -fno-omit-frame-pointer -DINCLUDE_TRACE -Werror -Wpointer-arith -Wconversion -Wsign-compare -DDTRACE_ENABLED -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -c -fpch-deps -MMD -MP -MF ../generated/dependencies/compile.o.d -o compile.o ROOT/hotspot/src/share/vm/opto/compile.cpp debuggable compilation line: llvm-g++ -D_ALLBSD_SOURCE -D_GNU_SOURCE -DAMD64 -DASSERT -DDEBUG -I. -IROOT/src/closed/share/vm/prims -IROOT/src/share/vm/prims -IROOT/src/closed/share/vm -IROOT/src/share/vm -IROOT/src/share/vm/precompiled -IROOT/src/closed/cpu/x86/vm -IROOT/src/cpu/x86/vm -IROOT/src/os_cpu/bsd_x86/vm -IROOT/src/os/bsd/vm -IROOT/src/closed/os/posix/vm -IROOT/src/os/posix/vm -I../generated -DHOTSPOT_RELEASE_VERSION="\"25.0-b15-internal\"" -DHOTSPOT_BUILD_TARGET="\"jvmg\"" -DHOTSPOT_BUILD_USER="\"dr2chase\"" -DHOTSPOT_LIB_ARCH=\"amd64\" -DHOTSPOT_VM_DISTRO="\"Java HotSpot(TM)\"" -DTARGET_OS_FAMILY_bsd -DTARGET_ARCH_x86 -DTARGET_ARCH_MODEL_x86_64 -DTARGET_OS_ARCH_bsd_x86 -DTARGET_OS_ARCH_MODEL_bsd_x86_64 -DTARGET_COMPILER_gcc -DCOMPILER2 -DCOMPILER1 -fPIC -fno-rtti -fno-exceptions -pthread -fcheck-new -m64 -pipe -fno-strict-aliasing -g -D_NMT_NOINLINE_ -DVM_LITTLE_ENDIAN -D_LP64=1 -fno-omit-frame-pointer -DINCLUDE_TRACE -Werror -Wpointer-arith -Wconversion -Wsign-compare -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -c -fpch-deps -MMD -MP -MF ../generated/dependencies/compile.o.d -o compile.o ROOT/src/share/vm/opto/compile.cpp One obvious difference is that a different compiler is used. I then tried to build using llvm-g++ instead of g++-4.2, but failed to obtain this result three times: first trial: make LOG=debug HOSTCXX=llvm-g++ >& modcxx.log second trial: make LOG=debug HOSTCXX=llvm-g++ BUILD_CXX=llvm-g++ >& modcxx.log third trial: CXX=llvm-g++ sh ./configure --with-debug-level=slowdebug In all three case, the C++ compiler actually used for the build was g++-4.2, not llvm-g++. I have no idea if this is the cause of my debugging problem, but it seems like a serious bug that the documented methods for specifying the C++ compiler don't work as documented. The output of "sh ./configure help" includes: Some influential environment variables: ... CXX C++ compiler command CXXFLAGS C++ compiler flags ... Use these variables to override the choices made by `configure' or to help it to find libraries and programs with nonstandard names/locations. I checked the contents of ./build/macosx-x86_64-normal-server-slowdebug/hotspot-spec.gmk AFTER specifying CXX=llvm-g++ to configure and the string "llvm" was not contained in it. In particular: find . -name *.gmk -exec egrep -n llvm /dev/null {} ; ./jdk/make/common/shared/Compiler-llvm.gmk:34: CC = $(COMPILER_PATH)llvm-gcc ./jdk/make/common/shared/Compiler-llvm.gmk:36: CPP = $(COMPILER_PATH)llvm-gcc -E ./jdk/make/common/shared/Compiler-llvm.gmk:38: CXX = $(COMPILER_PATH)llvm-g++ ./jdk/make/common/shared/Compiler-llvm.gmk:52:# Get llvm version ./jdk/make/common/shared/Defs-versions.gmk:49: override CC_VERSION = llvm I'll continue poking at this. Again, this is on Mountain Lion. Contents of ./build/macosx-x86_64-normal-server-slowdebug/hotspot-spec.gmk WITHOUT tweaked configure settings: =========================== # # Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. # # This code is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License version 2 only, as # published by the Free Software Foundation. Oracle designates this # particular file as subject to the "Classpath" exception as provided # by Oracle in the LICENSE file that accompanied this code. # # This code is distributed in the hope that it will be useful, but WITHOUT # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License # version 2 for more details (a copy is included in the LICENSE file that # accompanied this code). # # You should have received a copy of the GNU General Public License version # 2 along with this work; if not, write to the Free Software Foundation, # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. # # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA # or visit www.oracle.com if you need additional information or have any # questions. # # Chaining of spec files HOTSPOT_SPEC:=$(dir $(SPEC))hotspot-spec.gmk override SPEC=$(HOTSPOT_SPEC) # Now include the base spec.gmk file include $(BASE_SPEC) # Additional legacy variables defined for Hotspot OPENJDK=true # Legacy defines controlled by the SUPPORT_HEADLESS and SUPPORT_HEADFUL options. BUILD_HEADLESS:=true # Legacy setting: OPT or DBG VARIANT:=DBG # Legacy setting: true or false FASTDEBUG:=false # Legacy setting: debugging the class files? DEBUG_CLASSFILES:=true ALT_CUPS_HEADERS_PATH:=$(patsubst -I%,%,$(filter -I%,)) # The HOSTCC/HOSTCXX is Hotspot terminology for the BUILD_CC/BUILD_CXX, i.e. the # compiler that produces code that can be run on the build platform. HOSTCC:= /Developer/usr/bin/gcc-4.2 HOSTCXX:= /Developer/usr/bin/g++-4.2 #################################################### # # Legacy Hotspot support # If cross compiling, then define CROSS_COMPILE_ARCH:=cpu_name here. # Old name for OPENJDK_TARGET_OS (aix,bsd,hpux,linux,macosx,solaris,windows etc) PLATFORM=$(OPENJDK_TARGET_OS) # 32 or 64 bit ARCH_DATA_MODEL=$(OPENJDK_TARGET_CPU_BITS) ALT_BOOTDIR=$(BOOT_JDK) # Can be /sparcv9 or /amd64 on Solaris ISA_DIR=$(OPENJDK_TARGET_CPU_ISADIR) # Yet another name for arch used for an extra subdir below the jvm lib. # Uses i386 and amd64, instead of x86 and x86_64. LIBARCH=$(OPENJDK_TARGET_CPU_LEGACY_LIB) # Old name for OPENJDK_TARGET_CPU, uses i586 and amd64, instead of x86 and x86_64. ARCH=$(OPENJDK_TARGET_CPU_LEGACY) # Legacy setting for building for a 64 bit machine. # If yes then this expands to _LP64:=1 LP64:= ALT_OUTPUTDIR=$(HOTSPOT_OUTPUTDIR) ALT_EXPORT_PATH=$(HOTSPOT_DIST) HOTSPOT_MAKE_ARGS:=universal_product # This is used from the libjvm build for C/C++ code. HOTSPOT_BUILD_JOBS:=4 # Control wether Hotspot runs Queens test after building TEST_IN_BUILD=false # For hotspot, override compiler/tools definition to not include FIXPATH prefix. # Hotspot has its own handling on the Windows path situation. CXX:=CCACHE_COMPRESS=1 CCACHE_SLOPPINESS=time_macros /opt/local/bin/ccache /Developer/usr/bin/g++-4.2 LD:=/Developer/usr/bin/gcc-4.2 MT:= RC:= EXTRA_CFLAGS= EXTRA_CXXFLAGS= EXTRA_LDFLAGS= USE_PRECOMPILED_HEADER=1 # Hotspot expects the variable FULL_DEBUG_SYMBOLS=1/0 to control debug symbols # creation. ifeq ($(ENABLE_DEBUG_SYMBOLS), true) FULL_DEBUG_SYMBOLS=1 # Ensure hotspot uses the objcopy that configure located ALT_OBJCOPY:=$(OBJCOPY) else FULL_DEBUG_SYMBOLS=0 endif # Hotspot expects the variable ZIP_DEBUGINFO_FILES=1/0 and not true/false. ifeq ($(ZIP_DEBUGINFO_FILES)$(ENABLE_DEBUG_SYMBOLS), truetrue) ZIP_DEBUGINFO_FILES:=1 endif ifeq ($(ZIP_DEBUGINFO_FILES), false) ZIP_DEBUGINFO_FILES:=0 endif # Sneak this in via the spec.gmk file, since we don't want to mess around too much with the Hotspot make files. # This is needed to get the LOG setting to work properly. include $(SRC_ROOT)/common/makefiles/MakeBase.gmk ===========================
