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Java example source code file (dtrace.make)

This example Java source code file (dtrace.make) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

add_gnu_debuglink, dtrace_srcdir, fix_empty_sec_hdr_flags, genoffs, ld_library_path, lflags_jvm_dtrace, libjvm_db_debuginfo, libjvm_dtrace_debuginfo, objcopy, quietly, strip_policy, type, xlibjvm_dir

The dtrace.make Java example source code

#
# Copyright (c) 2005, 2013, 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.
#  
#

# Rules to build jvm_db/dtrace, used by vm.make

# We build libjvm_dtrace/libjvm_db/dtrace for COMPILER1 and COMPILER2
# but not for CORE configuration.

ifneq ("${TYPE}", "CORE")

ifdef USE_GCC

dtraceCheck:
	$(QUIETLY) echo "**NOTICE** Dtrace support disabled for gcc builds"

else

JVM_DB = libjvm_db
LIBJVM_DB = libjvm_db.so

LIBJVM_DB_DEBUGINFO   = libjvm_db.debuginfo
LIBJVM_DB_DIZ         = libjvm_db.diz

JVM_DTRACE = jvm_dtrace
LIBJVM_DTRACE = libjvm_dtrace.so

LIBJVM_DTRACE_DEBUGINFO   = libjvm_dtrace.debuginfo
LIBJVM_DTRACE_DIZ         = libjvm_dtrace.diz

JVMOFFS = JvmOffsets
JVMOFFS.o = $(JVMOFFS).o
GENOFFS = generate$(JVMOFFS)

DTRACE_SRCDIR = $(GAMMADIR)/src/os/$(Platform_os_family)/dtrace
DTRACE = dtrace
DTRACE.o = $(DTRACE).o

# to remove '-g' option which causes link problems
# also '-z nodefs' is used as workaround
GENOFFS_CFLAGS = $(shell echo $(CFLAGS) | sed -e 's/ -g / /g' -e 's/ -g0 / /g';)

ifdef LP64
DTRACE_OPTS = -64 -D_LP64
endif

# making libjvm_db

# Use mapfile with libjvm_db.so
LIBJVM_DB_MAPFILE = $(MAKEFILES_DIR)/mapfile-vers-jvm_db
LFLAGS_JVM_DB += $(MAPFLAG:FILENAME=$(LIBJVM_DB_MAPFILE))

# Use mapfile with libjvm_dtrace.so
LIBJVM_DTRACE_MAPFILE = $(MAKEFILES_DIR)/mapfile-vers-jvm_dtrace
LFLAGS_JVM_DTRACE += $(MAPFLAG:FILENAME=$(LIBJVM_DTRACE_MAPFILE))

ifdef USE_GCC
LFLAGS_JVM_DB += -D_REENTRANT $(PICFLAG)
LFLAGS_JVM_DTRACE += -D_REENTRANT $(PICFLAG)
else
LFLAGS_JVM_DB += -mt $(PICFLAG) -xnolib
LFLAGS_JVM_DTRACE += -mt $(PICFLAG) -xnolib -ldl
endif

ISA = $(subst i386,i486,$(shell isainfo -n))

# Making 64/libjvm_db.so: 64-bit version of libjvm_db.so which handles 32-bit libjvm.so
ifneq ("${ISA}","${BUILDARCH}")

XLIBJVM_DIR = 64
XLIBJVM_DB = $(XLIBJVM_DIR)/$(LIBJVM_DB)
XLIBJVM_DTRACE = $(XLIBJVM_DIR)/$(LIBJVM_DTRACE)

XLIBJVM_DB_DEBUGINFO       = $(XLIBJVM_DIR)/$(LIBJVM_DB_DEBUGINFO)
XLIBJVM_DB_DIZ             = $(XLIBJVM_DIR)/$(LIBJVM_DB_DIZ)
XLIBJVM_DTRACE_DEBUGINFO   = $(XLIBJVM_DIR)/$(LIBJVM_DTRACE_DEBUGINFO)
XLIBJVM_DTRACE_DIZ         = $(XLIBJVM_DIR)/$(LIBJVM_DTRACE_DIZ)

$(XLIBJVM_DB): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(DTRACE_SRCDIR)/$(JVM_DB).c $(JVMOFFS).h $(LIBJVM_DB_MAPFILE)
	@echo Making $@
	$(QUIETLY) mkdir -p $(XLIBJVM_DIR) ; \
	$(CC) $(SYMFLAG) $(ARCHFLAG/$(ISA)) -D$(TYPE) -I. -I$(GENERATED) \
		$(SHARED_FLAG) $(LFLAGS_JVM_DB) -o $@ $(DTRACE_SRCDIR)/$(JVM_DB).c -lc
ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
# gobjcopy crashes on "empty" section headers with the SHF_ALLOC flag set.
# Clear the SHF_ALLOC flag (if set) from empty section headers.
# An empty section header has sh_addr == 0 and sh_size == 0.
# This problem has only been seen on Solaris X64, but we call this tool
# on all Solaris builds just in case.
	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(XLIBJVM_DB_DEBUGINFO)
# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
# Use $(ADD_GNU_DEBUGLINK) until a fixed $(OBJCOPY) is available.
#         $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DB_DEBUGINFO) $(LIBJVM_DB) ;
# Do this part in the $(XLIBJVM_DIR) subdir so $(XLIBJVM_DIR) is not
# in the link name:
	( cd $(XLIBJVM_DIR) && $(ADD_GNU_DEBUGLINK) $(LIBJVM_DB_DEBUGINFO) $(LIBJVM_DB) )
  ifeq ($(STRIP_POLICY),all_strip)
	$(QUIETLY) $(STRIP) $@
  else
    ifeq ($(STRIP_POLICY),min_strip)
	$(QUIETLY) $(STRIP) -x $@
    # implied else here is no stripping at all
    endif
  endif
  ifeq ($(ZIP_DEBUGINFO_FILES),1)
# Do this part in the $(XLIBJVM_DIR) subdir so $(XLIBJVM_DIR) is not
# in the archived name:
	( cd $(XLIBJVM_DIR) && $(ZIPEXE) -q -y $(LIBJVM_DB_DIZ) $(LIBJVM_DB_DEBUGINFO) )
	$(RM) $(XLIBJVM_DB_DEBUGINFO)
  endif
endif

$(XLIBJVM_DTRACE): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(DTRACE_SRCDIR)/$(JVM_DTRACE).c $(DTRACE_SRCDIR)/$(JVM_DTRACE).h $(LIBJVM_DTRACE_MAPFILE)
	@echo Making $@
	$(QUIETLY) mkdir -p $(XLIBJVM_DIR) ; \
	$(CC) $(SYMFLAG) $(ARCHFLAG/$(ISA)) -D$(TYPE) -I. \
		$(SHARED_FLAG) $(LFLAGS_JVM_DTRACE) -o $@ $(DTRACE_SRCDIR)/$(JVM_DTRACE).c -lc -lthread -ldoor
ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
# Clear the SHF_ALLOC flag (if set) from empty section headers.
	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(XLIBJVM_DTRACE_DEBUGINFO)
# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
#         $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DTRACE_DEBUGINFO) $(LIBJVM_DTRACE) ;
# Do this part in the $(XLIBJVM_DIR) subdir so $(XLIBJVM_DIR) is not
# in the link name:
	( cd $(XLIBJVM_DIR) && $(ADD_GNU_DEBUGLINK) $(LIBJVM_DTRACE_DEBUGINFO) $(LIBJVM_DTRACE) )
  ifeq ($(STRIP_POLICY),all_strip)
	$(QUIETLY) $(STRIP) $@
  else
    ifeq ($(STRIP_POLICY),min_strip)
	$(QUIETLY) $(STRIP) -x $@
    # implied else here is no stripping at all
    endif
  endif
  ifeq ($(ZIP_DEBUGINFO_FILES),1)
# Do this part in the $(XLIBJVM_DIR) subdir so $(XLIBJVM_DIR) is not
# in the archived name:
	( cd $(XLIBJVM_DIR) && $(ZIPEXE) -q -y $(LIBJVM_DTRACE_DIZ) $(LIBJVM_DTRACE_DEBUGINFO))
	$(RM) $(XLIBJVM_DTRACE_DEBUGINFO)
  endif
endif

endif # ifneq ("${ISA}","${BUILDARCH}")

ifdef USE_GCC
LFLAGS_GENOFFS += -D_REENTRANT
else
LFLAGS_GENOFFS += -mt -xnolib -norunpath
endif

lib$(GENOFFS).so: $(DTRACE_SRCDIR)/$(GENOFFS).cpp $(DTRACE_SRCDIR)/$(GENOFFS).h \
                  $(LIBJVM.o)
	$(QUIETLY) $(CXX) $(CXXFLAGS) $(GENOFFS_CFLAGS) $(SHARED_FLAG) $(PICFLAG) \
		 $(LFLAGS_GENOFFS) -o $@ $(DTRACE_SRCDIR)/$(GENOFFS).cpp -lc

$(GENOFFS): $(DTRACE_SRCDIR)/$(GENOFFS)Main.c lib$(GENOFFS).so
	$(QUIETLY) $(LINK.CXX) -z nodefs -o $@ $(DTRACE_SRCDIR)/$(GENOFFS)Main.c \
		./lib$(GENOFFS).so

CONDITIONALLY_UPDATE_JVMOFFS_TARGET = \
	cmp -s $@ $@.tmp; \
	case $$? in \
	0) rm -f $@.tmp;; \
	*) rm -f $@ && mv $@.tmp $@ && echo Updated $@;; \
	esac

# $@.tmp is created first to avoid an empty $(JVMOFFS).h if an error occurs.
$(JVMOFFS).h: $(GENOFFS)
	$(QUIETLY) LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ./$(GENOFFS) -header > $@.tmp
	$(QUIETLY) $(CONDITIONALLY_UPDATE_JVMOFFS_TARGET)

$(JVMOFFS)Index.h: $(GENOFFS)
	$(QUIETLY) LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ./$(GENOFFS) -index > $@.tmp
	$(QUIETLY)  $(CONDITIONALLY_UPDATE_JVMOFFS_TARGET)

$(JVMOFFS).cpp: $(GENOFFS) $(JVMOFFS).h $(JVMOFFS)Index.h
	$(QUIETLY) LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ./$(GENOFFS) -table > $@.tmp
	$(QUIETLY) $(CONDITIONALLY_UPDATE_JVMOFFS_TARGET)

$(JVMOFFS.o): $(JVMOFFS).h $(JVMOFFS).cpp 
	$(QUIETLY) $(CXX) -c -I. -o $@ $(ARCHFLAG) -D$(TYPE) $(JVMOFFS).cpp

$(LIBJVM_DB): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(DTRACE_SRCDIR)/$(JVM_DB).c $(JVMOFFS.o) $(XLIBJVM_DB) $(LIBJVM_DB_MAPFILE)
	@echo Making $@
	$(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) -D$(TYPE) -I. -I$(GENERATED) \
		$(SHARED_FLAG) $(LFLAGS_JVM_DB) -o $@ $(DTRACE_SRCDIR)/$(JVM_DB).c -lc
ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
# Clear the SHF_ALLOC flag (if set) from empty section headers.
	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJVM_DB_DEBUGINFO)
# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
#	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DB_DEBUGINFO) $@
	$(QUIETLY) $(ADD_GNU_DEBUGLINK) $(LIBJVM_DB_DEBUGINFO) $@
  ifeq ($(STRIP_POLICY),all_strip)
	$(QUIETLY) $(STRIP) $@
  else
    ifeq ($(STRIP_POLICY),min_strip)
	$(QUIETLY) $(STRIP) -x $@
    # implied else here is no stripping at all
    endif
  endif
  ifeq ($(ZIP_DEBUGINFO_FILES),1)
	$(ZIPEXE) -q -y $(LIBJVM_DB_DIZ) $(LIBJVM_DB_DEBUGINFO)
	$(RM) $(LIBJVM_DB_DEBUGINFO)
  endif
endif

$(LIBJVM_DTRACE): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(DTRACE_SRCDIR)/$(JVM_DTRACE).c $(XLIBJVM_DTRACE) $(DTRACE_SRCDIR)/$(JVM_DTRACE).h $(LIBJVM_DTRACE_MAPFILE)
	@echo Making $@
	$(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) -D$(TYPE) -I.  \
		$(SHARED_FLAG) $(LFLAGS_JVM_DTRACE) -o $@ $(DTRACE_SRCDIR)/$(JVM_DTRACE).c -lc -lthread -ldoor
ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
# Clear the SHF_ALLOC flag (if set) from empty section headers.
	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJVM_DTRACE_DEBUGINFO)
# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
#	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DTRACE_DEBUGINFO) $@
	$(QUIETLY) $(ADD_GNU_DEBUGLINK) $(LIBJVM_DTRACE_DEBUGINFO) $@
  ifeq ($(STRIP_POLICY),all_strip)
	$(QUIETLY) $(STRIP) $@
  else
    ifeq ($(STRIP_POLICY),min_strip)
	$(QUIETLY) $(STRIP) -x $@
    # implied else here is no stripping at all
    endif
  endif
  ifeq ($(ZIP_DEBUGINFO_FILES),1)
	$(ZIPEXE) -q -y $(LIBJVM_DTRACE_DIZ) $(LIBJVM_DTRACE_DEBUGINFO) 
	$(RM) $(LIBJVM_DTRACE_DEBUGINFO)
  endif
endif

$(DTRACE).d: $(DTRACE_SRCDIR)/hotspot.d $(DTRACE_SRCDIR)/hotspot_jni.d \
             $(DTRACE_SRCDIR)/hs_private.d $(DTRACE_SRCDIR)/jhelper.d
	$(QUIETLY) cat $^ > $@

DTraced_Files = ciEnv.o \
                classLoadingService.o \
                compileBroker.o \
                hashtable.o \
                instanceKlass.o \
                java.o \
                jni.o \
                jvm.o \
                memoryManager.o \
                nmethod.o \
                objectMonitor.o \
                runtimeService.o \
                sharedRuntime.o \
                synchronizer.o \
                thread.o \
                unsafe.o \
                vmThread.o \
                vmCMSOperations.o \
                vmPSOperations.o \
                vmGCOperations.o \

# Dtrace is available, so we build $(DTRACE.o)  
$(DTRACE.o): $(DTRACE).d $(JVMOFFS).h $(JVMOFFS)Index.h $(DTraced_Files)
	@echo Compiling $(DTRACE).d

	$(QUIETLY) $(DTRACE_PROG) $(DTRACE_OPTS) -C -I. -G -xlazyload -o $@ -s $(DTRACE).d \
     $(DTraced_Files) ||\
  STATUS=$$?;\
  if [ x"$$STATUS" = x"1" ]; then \
      if [ x`uname -r` = x"5.10" -a \
           x`uname -p` = x"sparc" ]; then\
    echo "*****************************************************************";\
    echo "* If you are building server compiler, and the error message is ";\
    echo "* \"incorrect ELF machine type...\", you have run into solaris bug ";\
    echo "* 6213962, \"dtrace -G doesn't work on sparcv8+ object files\".";\
    echo "* Either patch/upgrade your system (>= S10u1_15), or set the ";\
    echo "* environment variable HOTSPOT_DISABLE_DTRACE_PROBES to disable ";\
    echo "* dtrace probes for this build.";\
    echo "*****************************************************************";\
      elif [ x`uname -r` = x"5.10" ]; then\
    echo "*****************************************************************";\
    echo "* If you are seeing 'syntax error near \"umpiconninfo_t\"' on Solaris";\
    echo "* 10, try doing 'cd /usr/lib/dtrace && gzip mpi.d' as root, ";\
    echo "* or set the environment variable HOTSPOT_DISABLE_DTRACE_PROBES";\
    echo "* to disable dtrace probes for this build.";\
    echo "*****************************************************************";\
      else \
    echo "*****************************************************************";\
    echo "* If you cannot fix dtrace build issues, try to ";\
    echo "* set the environment variable HOTSPOT_DISABLE_DTRACE_PROBES";\
    echo "* to disable dtrace probes for this build.";\
    echo "*****************************************************************";\
      fi; \
  fi;\
  exit $$STATUS
  # Since some DTraced_Files are in LIBJVM.o and they are touched by this
  # command, and libgenerateJvmOffsets.so depends on LIBJVM.o, 'make' will
  # think it needs to rebuild libgenerateJvmOffsets.so and thus JvmOffsets*
  # files, but it doesn't, so we touch the necessary files to prevent later
  # recompilation. Note: we only touch the necessary files if they already
  # exist in order to close a race where an empty file can be created
  # before the real build rule is executed.
  # But, we can't touch the *.h files:  This rule depends
  # on them, and that would cause an infinite cycle of rebuilding.
  # Neither the *.h or *.ccp files need to be touched, since they have
  # rules which do not update them when the generator file has not
  # changed their contents.
	$(QUIETLY) if [ -f lib$(GENOFFS).so ]; then touch lib$(GENOFFS).so; fi
	$(QUIETLY) if [ -f $(GENOFFS) ]; then touch $(GENOFFS); fi
	$(QUIETLY) if [ -f $(JVMOFFS.o) ]; then touch $(JVMOFFS.o); fi

.PHONY: dtraceCheck

SYSTEM_DTRACE_H = /usr/include/dtrace.h
SYSTEM_DTRACE_PROG = /usr/sbin/dtrace
PATCH_DTRACE_PROG = /opt/SUNWdtrd/sbin/dtrace
systemDtraceFound := $(wildcard ${SYSTEM_DTRACE_PROG})
patchDtraceFound := $(wildcard ${PATCH_DTRACE_PROG})
systemDtraceHdrFound := $(wildcard $(SYSTEM_DTRACE_H))

ifneq ("$(systemDtraceHdrFound)", "") 
CFLAGS += -DHAVE_DTRACE_H
endif

ifneq ("$(patchDtraceFound)", "")
DTRACE_PROG=$(PATCH_DTRACE_PROG)
DTRACE_INCL=-I/opt/SUNWdtrd/include
else
ifneq ("$(systemDtraceFound)", "")
DTRACE_PROG=$(SYSTEM_DTRACE_PROG)
else

endif # ifneq ("$(systemDtraceFound)", "")
endif # ifneq ("$(patchDtraceFound)", "")

ifneq ("${DTRACE_PROG}", "")
ifeq ("${HOTSPOT_DISABLE_DTRACE_PROBES}", "")

DTRACE_OBJS = $(DTRACE.o) $(JVMOFFS.o)
CFLAGS += $(DTRACE_INCL) -DDTRACE_ENABLED
MAPFILE_DTRACE_OPT = $(MAPFILE_DTRACE)

dtraceCheck:

else # manually disabled

dtraceCheck:
	$(QUIETLY) echo "**NOTICE** Dtrace support disabled via environment variable"

endif # ifeq ("${HOTSPOT_DISABLE_DTRACE_PROBES}", "")

else # No dtrace program found

dtraceCheck:
	$(QUIETLY) echo "**NOTICE** Dtrace support disabled: not supported by system"

endif # ifneq ("${dtraceFound}", "")

endif # ifdef USE_GCC

else # CORE build

dtraceCheck:
	$(QUIETLY) echo "**NOTICE** Dtrace support disabled for CORE builds"

endif # ifneq ("${TYPE}", "CORE")

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