1 #
   2 # Copyright (c) 2005, 2014, Oracle and/or its affiliates. All rights reserved.
   3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4 #
   5 # This code is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License version 2 only, as
   7 # published by the Free Software Foundation.
   8 #
   9 # This code is distributed in the hope that it will be useful, but WITHOUT
  10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12 # version 2 for more details (a copy is included in the LICENSE file that
  13 # accompanied this code).
  14 #
  15 # You should have received a copy of the GNU General Public License version
  16 # 2 along with this work; if not, write to the Free Software Foundation,
  17 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18 #
  19 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20 # or visit www.oracle.com if you need additional information or have any
  21 # questions.
  22 #  
  23 #
  24 
  25 # Rules to build jvm_db/dtrace, used by vm.make
  26 
  27 # We build libjvm_dtrace/libjvm_db/dtrace for COMPILER1 and COMPILER2
  28 # but not for CORE configuration.
  29 
  30 ifneq ("${TYPE}", "CORE")
  31 
  32 ifdef USE_GCC
  33 
  34 dtraceCheck:
  35         $(QUIETLY) echo $(LOG_INFO) "**NOTICE** Dtrace support disabled for gcc builds"
  36 
  37 else
  38 
  39 DtraceOutDir = $(GENERATED)/dtracefiles
  40 
  41 JVM_DB = libjvm_db
  42 LIBJVM_DB = libjvm_db.so
  43 
  44 LIBJVM_DB_DEBUGINFO   = libjvm_db.debuginfo
  45 LIBJVM_DB_DIZ         = libjvm_db.diz
  46 
  47 JVM_DTRACE = jvm_dtrace
  48 LIBJVM_DTRACE = libjvm_dtrace.so
  49 
  50 LIBJVM_DTRACE_DEBUGINFO   = libjvm_dtrace.debuginfo
  51 LIBJVM_DTRACE_DIZ         = libjvm_dtrace.diz
  52 
  53 JVMOFFS = JvmOffsets
  54 JVMOFFS.o = $(JVMOFFS).o
  55 GENOFFS = generate$(JVMOFFS)
  56 
  57 DTRACE_SRCDIR = $(GAMMADIR)/src/os/$(Platform_os_family)/dtrace
  58 DTRACE_COMMON_SRCDIR = $(GAMMADIR)/src/os/posix/dtrace
  59 DTRACE = dtrace
  60 DTRACE.o = $(DTRACE).o
  61 DTRACE_JHELPER = dtrace_jhelper
  62 DTRACE_JHELPER.o = $(DTRACE_JHELPER).o
  63 
  64 # to remove '-g' option which causes link problems
  65 # also '-z nodefs' is used as workaround
  66 GENOFFS_CFLAGS = $(shell echo $(CFLAGS) | sed -e 's/ -g / /g' -e 's/ -g0 / /g';)
  67 
  68 ifdef LP64
  69 DTRACE_OPTS = -64 -D_LP64
  70 endif
  71 
  72 # making libjvm_db
  73 
  74 # Use mapfile with libjvm_db.so
  75 LIBJVM_DB_MAPFILE = $(MAKEFILES_DIR)/mapfile-vers-jvm_db
  76 LFLAGS_JVM_DB += $(MAPFLAG:FILENAME=$(LIBJVM_DB_MAPFILE))
  77 
  78 # Use mapfile with libjvm_dtrace.so
  79 LIBJVM_DTRACE_MAPFILE = $(MAKEFILES_DIR)/mapfile-vers-jvm_dtrace
  80 LFLAGS_JVM_DTRACE += $(MAPFLAG:FILENAME=$(LIBJVM_DTRACE_MAPFILE))
  81 
  82 ifdef USE_GCC
  83 LFLAGS_JVM_DB += -D_REENTRANT $(PICFLAG)
  84 LFLAGS_JVM_DTRACE += -D_REENTRANT $(PICFLAG)
  85 else
  86 LFLAGS_JVM_DB += -mt $(PICFLAG) -xnolib
  87 LFLAGS_JVM_DTRACE += -mt $(PICFLAG) -xnolib -ldl
  88 endif
  89 
  90 ISA = $(subst i386,i486,$(shell isainfo -n))
  91 
  92 # Making 64/libjvm_db.so: 64-bit version of libjvm_db.so which handles 32-bit libjvm.so
  93 ifneq ("${ISA}","${BUILDARCH}")
  94 
  95 XLIBJVM_DIR = 64
  96 XLIBJVM_DB = $(XLIBJVM_DIR)/$(LIBJVM_DB)
  97 XLIBJVM_DTRACE = $(XLIBJVM_DIR)/$(LIBJVM_DTRACE)
  98 
  99 XLIBJVM_DB_DEBUGINFO       = $(XLIBJVM_DIR)/$(LIBJVM_DB_DEBUGINFO)
 100 XLIBJVM_DB_DIZ             = $(XLIBJVM_DIR)/$(LIBJVM_DB_DIZ)
 101 XLIBJVM_DTRACE_DEBUGINFO   = $(XLIBJVM_DIR)/$(LIBJVM_DTRACE_DEBUGINFO)
 102 XLIBJVM_DTRACE_DIZ         = $(XLIBJVM_DIR)/$(LIBJVM_DTRACE_DIZ)
 103 
 104 $(XLIBJVM_DB): $(DTRACE_SRCDIR)/$(JVM_DB).c $(JVMOFFS).h $(LIBJVM_DB_MAPFILE)
 105         @echo $(LOG_INFO) Making $@
 106         $(QUIETLY) mkdir -p $(XLIBJVM_DIR) ; \
 107         $(CC) $(SYMFLAG) $(ARCHFLAG/$(ISA)) -D$(TYPE) -I. -I$(GENERATED) \
 108                 $(SHARED_FLAG) $(LFLAGS_JVM_DB) -o $@ $(DTRACE_SRCDIR)/$(JVM_DB).c -lc
 109 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
 110         $(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(XLIBJVM_DB_DEBUGINFO)
 111 # Do this part in the $(XLIBJVM_DIR) subdir so $(XLIBJVM_DIR) is not
 112 # in the link name:
 113         ( cd $(XLIBJVM_DIR) && $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DB_DEBUGINFO) $(LIBJVM_DB) )
 114   ifeq ($(STRIP_POLICY),all_strip)
 115         $(QUIETLY) $(STRIP) $@
 116   else
 117     ifeq ($(STRIP_POLICY),min_strip)
 118         $(QUIETLY) $(STRIP) -x $@
 119     # implied else here is no stripping at all
 120     endif
 121   endif
 122   ifeq ($(ZIP_DEBUGINFO_FILES),1)
 123 # Do this part in the $(XLIBJVM_DIR) subdir so $(XLIBJVM_DIR) is not
 124 # in the archived name:
 125         ( cd $(XLIBJVM_DIR) && $(ZIPEXE) -q -y $(LIBJVM_DB_DIZ) $(LIBJVM_DB_DEBUGINFO) )
 126         $(RM) $(XLIBJVM_DB_DEBUGINFO)
 127   endif
 128 endif
 129 
 130 $(XLIBJVM_DTRACE): $(DTRACE_SRCDIR)/$(JVM_DTRACE).c $(DTRACE_SRCDIR)/$(JVM_DTRACE).h $(LIBJVM_DTRACE_MAPFILE)
 131         @echo $(LOG_INFO) Making $@
 132         $(QUIETLY) mkdir -p $(XLIBJVM_DIR) ; \
 133         $(CC) $(SYMFLAG) $(ARCHFLAG/$(ISA)) -D$(TYPE) -I. \
 134                 $(SHARED_FLAG) $(LFLAGS_JVM_DTRACE) -o $@ $(DTRACE_SRCDIR)/$(JVM_DTRACE).c -lc -lthread -ldoor
 135 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
 136         $(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(XLIBJVM_DTRACE_DEBUGINFO)
 137 # Do this part in the $(XLIBJVM_DIR) subdir so $(XLIBJVM_DIR) is not
 138 # in the link name:
 139         ( cd $(XLIBJVM_DIR) && $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DTRACE_DEBUGINFO) $(LIBJVM_DTRACE) )
 140   ifeq ($(STRIP_POLICY),all_strip)
 141         $(QUIETLY) $(STRIP) $@
 142   else
 143     ifeq ($(STRIP_POLICY),min_strip)
 144         $(QUIETLY) $(STRIP) -x $@
 145     # implied else here is no stripping at all
 146     endif
 147   endif
 148   ifeq ($(ZIP_DEBUGINFO_FILES),1)
 149 # Do this part in the $(XLIBJVM_DIR) subdir so $(XLIBJVM_DIR) is not
 150 # in the archived name:
 151         ( cd $(XLIBJVM_DIR) && $(ZIPEXE) -q -y $(LIBJVM_DTRACE_DIZ) $(LIBJVM_DTRACE_DEBUGINFO))
 152         $(RM) $(XLIBJVM_DTRACE_DEBUGINFO)
 153   endif
 154 endif
 155 
 156 endif # ifneq ("${ISA}","${BUILDARCH}")
 157 
 158 ifdef USE_GCC
 159 LFLAGS_GENOFFS += -D_REENTRANT
 160 else
 161 LFLAGS_GENOFFS += -mt -xnolib -norunpath
 162 endif
 163 
 164 lib$(GENOFFS).so: $(DTRACE_SRCDIR)/$(GENOFFS).cpp $(DTRACE_SRCDIR)/$(GENOFFS).h \
 165                   $(LIBJVM.o)
 166         $(QUIETLY) $(CXX) $(CXXFLAGS) $(GENOFFS_CFLAGS) $(SHARED_FLAG) $(PICFLAG) \
 167                  $(LFLAGS_GENOFFS) -o $@ $(DTRACE_SRCDIR)/$(GENOFFS).cpp -lc
 168 
 169 $(GENOFFS): $(DTRACE_SRCDIR)/$(GENOFFS)Main.c lib$(GENOFFS).so
 170         $(QUIETLY) $(LINK.CXX) -z nodefs -o $@ $(DTRACE_SRCDIR)/$(GENOFFS)Main.c \
 171                 ./lib$(GENOFFS).so
 172 
 173 CONDITIONALLY_UPDATE_JVMOFFS_TARGET = \
 174         cmp -s $@ $@.tmp; \
 175         case $$? in \
 176         0) rm -f $@.tmp;; \
 177         *) rm -f $@ && mv $@.tmp $@ && echo Updated $@;; \
 178         esac
 179 
 180 # $@.tmp is created first to avoid an empty $(JVMOFFS).h if an error occurs.
 181 $(JVMOFFS).h: $(GENOFFS)
 182         $(QUIETLY) LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ./$(GENOFFS) -header > $@.tmp
 183         $(QUIETLY) $(CONDITIONALLY_UPDATE_JVMOFFS_TARGET)
 184 
 185 $(JVMOFFS)Index.h: $(GENOFFS)
 186         $(QUIETLY) LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ./$(GENOFFS) -index > $@.tmp
 187         $(QUIETLY)  $(CONDITIONALLY_UPDATE_JVMOFFS_TARGET)
 188 
 189 $(JVMOFFS).cpp: $(GENOFFS) $(JVMOFFS).h $(JVMOFFS)Index.h
 190         $(QUIETLY) LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ./$(GENOFFS) -table > $@.tmp
 191         $(QUIETLY) $(CONDITIONALLY_UPDATE_JVMOFFS_TARGET)
 192 
 193 $(JVMOFFS.o): $(JVMOFFS).h $(JVMOFFS).cpp 
 194         $(QUIETLY) $(CXX) -c -I. -o $@ $(ARCHFLAG) -D$(TYPE) $(JVMOFFS).cpp
 195 
 196 $(LIBJVM_DB): $(DTRACE_SRCDIR)/$(JVM_DB).c $(JVMOFFS.o) $(XLIBJVM_DB) $(LIBJVM_DB_MAPFILE)
 197         @echo $(LOG_INFO) Making $@
 198         $(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) -D$(TYPE) -I. -I$(GENERATED) \
 199                 $(SHARED_FLAG) $(LFLAGS_JVM_DB) -o $@ $(DTRACE_SRCDIR)/$(JVM_DB).c -lc
 200 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
 201         $(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJVM_DB_DEBUGINFO)
 202         $(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DB_DEBUGINFO) $@
 203   ifeq ($(STRIP_POLICY),all_strip)
 204         $(QUIETLY) $(STRIP) $@
 205   else
 206     ifeq ($(STRIP_POLICY),min_strip)
 207         $(QUIETLY) $(STRIP) -x $@
 208     # implied else here is no stripping at all
 209     endif
 210   endif
 211   ifeq ($(ZIP_DEBUGINFO_FILES),1)
 212         $(ZIPEXE) -q -y $(LIBJVM_DB_DIZ) $(LIBJVM_DB_DEBUGINFO)
 213         $(RM) $(LIBJVM_DB_DEBUGINFO)
 214   endif
 215 endif
 216 
 217 $(LIBJVM_DTRACE): $(DTRACE_SRCDIR)/$(JVM_DTRACE).c $(XLIBJVM_DTRACE) $(DTRACE_SRCDIR)/$(JVM_DTRACE).h $(LIBJVM_DTRACE_MAPFILE)
 218         @echo $(LOG_INFO) Making $@
 219         $(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) -D$(TYPE) -I.  \
 220                 $(SHARED_FLAG) $(LFLAGS_JVM_DTRACE) -o $@ $(DTRACE_SRCDIR)/$(JVM_DTRACE).c -lc -lthread -ldoor
 221 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
 222         $(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJVM_DTRACE_DEBUGINFO)
 223         $(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DTRACE_DEBUGINFO) $@
 224   ifeq ($(STRIP_POLICY),all_strip)
 225         $(QUIETLY) $(STRIP) $@
 226   else
 227     ifeq ($(STRIP_POLICY),min_strip)
 228         $(QUIETLY) $(STRIP) -x $@
 229     # implied else here is no stripping at all
 230     endif
 231   endif
 232   ifeq ($(ZIP_DEBUGINFO_FILES),1)
 233         $(ZIPEXE) -q -y $(LIBJVM_DTRACE_DIZ) $(LIBJVM_DTRACE_DEBUGINFO) 
 234         $(RM) $(LIBJVM_DTRACE_DEBUGINFO)
 235   endif
 236 endif
 237 
 238 $(DTRACE).d: $(DTRACE_COMMON_SRCDIR)/hotspot.d $(DTRACE_COMMON_SRCDIR)/hotspot_jni.d \
 239              $(DTRACE_COMMON_SRCDIR)/hs_private.d
 240         $(QUIETLY) cat $^ > $@
 241 
 242 $(DTRACE_JHELPER).d: $(DTRACE_SRCDIR)/jhelper.d
 243         $(QUIETLY) cat $^ > $@
 244 
 245 DTraced_Files = ciEnv.o \
 246                 classLoadingService.o \
 247                 compileBroker.o \
 248                 hashtable.o \
 249                 instanceKlass.o \
 250                 java.o \
 251                 jni.o \
 252                 jvm.o \
 253                 memoryManager.o \
 254                 nmethod.o \
 255                 objectMonitor.o \
 256                 runtimeService.o \
 257                 sharedRuntime.o \
 258                 synchronizer.o \
 259                 thread.o \
 260                 unsafe.o \
 261                 vmThread.o \
 262                 vmCMSOperations.o \
 263                 vmPSOperations.o \
 264                 vmGCOperations.o \
 265 
 266 # Dtrace is available, so we build $(DTRACE.o)  
 267 $(DTRACE.o): $(DTRACE).d $(DTraced_Files)
 268         @echo $(LOG_INFO) Compiling $(DTRACE).d
 269 
 270         $(QUIETLY) $(DTRACE_PROG) $(DTRACE_OPTS) -C -I. -G -xlazyload -o $@ -s $(DTRACE).d \
 271      $(DTraced_Files) ||\
 272   STATUS=$$?;\
 273   if [ x"$$STATUS" = x"1" ]; then \
 274       if [ x`uname -r` = x"5.10" -a \
 275            x`uname -p` = x"sparc" ]; then\
 276     echo "*****************************************************************";\
 277     echo "* If you are building server compiler, and the error message is ";\
 278     echo "* \"incorrect ELF machine type...\", you have run into solaris bug ";\
 279     echo "* 6213962, \"dtrace -G doesn't work on sparcv8+ object files\".";\
 280     echo "* Either patch/upgrade your system (>= S10u1_15), or set the ";\
 281     echo "* environment variable HOTSPOT_DISABLE_DTRACE_PROBES to disable ";\
 282     echo "* dtrace probes for this build.";\
 283     echo "*****************************************************************";\
 284       elif [ x`uname -r` = x"5.10" ]; then\
 285     echo "*****************************************************************";\
 286     echo "* If you are seeing 'syntax error near \"umpiconninfo_t\"' on Solaris";\
 287     echo "* 10, try doing 'cd /usr/lib/dtrace && gzip mpi.d' as root, ";\
 288     echo "* or set the environment variable HOTSPOT_DISABLE_DTRACE_PROBES";\
 289     echo "* to disable dtrace probes for this build.";\
 290     echo "*****************************************************************";\
 291       else \
 292     echo "*****************************************************************";\
 293     echo "* If you cannot fix dtrace build issues, try to ";\
 294     echo "* set the environment variable HOTSPOT_DISABLE_DTRACE_PROBES";\
 295     echo "* to disable dtrace probes for this build.";\
 296     echo "*****************************************************************";\
 297       fi; \
 298   fi;\
 299   exit $$STATUS
 300   # Since some DTraced_Files are in LIBJVM.o and they are touched by this
 301   # command, and libgenerateJvmOffsets.so depends on LIBJVM.o, 'make' will
 302   # think it needs to rebuild libgenerateJvmOffsets.so and thus JvmOffsets*
 303   # files, but it doesn't, so we touch the necessary files to prevent later
 304   # recompilation. Note: we only touch the necessary files if they already
 305   # exist in order to close a race where an empty file can be created
 306   # before the real build rule is executed.
 307   # But, we can't touch the *.h files:  This rule depends
 308   # on them, and that would cause an infinite cycle of rebuilding.
 309   # Neither the *.h or *.ccp files need to be touched, since they have
 310   # rules which do not update them when the generator file has not
 311   # changed their contents.
 312         $(QUIETLY) if [ -f lib$(GENOFFS).so ]; then touch lib$(GENOFFS).so; fi
 313         $(QUIETLY) if [ -f $(GENOFFS) ]; then touch $(GENOFFS); fi
 314         $(QUIETLY) if [ -f $(JVMOFFS.o) ]; then touch $(JVMOFFS.o); fi
 315 
 316 
 317 $(DtraceOutDir):
 318         mkdir $(DtraceOutDir)
 319 
 320 $(DtraceOutDir)/hotspot.h: $(DTRACE_COMMON_SRCDIR)/hotspot.d | $(DtraceOutDir)
 321         $(QUIETLY) $(DTRACE_PROG) $(DTRACE_OPTS) -C -I. -h -o $@ -s $(DTRACE_COMMON_SRCDIR)/hotspot.d
 322 
 323 $(DtraceOutDir)/hotspot_jni.h: $(DTRACE_COMMON_SRCDIR)/hotspot_jni.d | $(DtraceOutDir)
 324         $(QUIETLY) $(DTRACE_PROG) $(DTRACE_OPTS) -C -I. -h -o $@ -s $(DTRACE_COMMON_SRCDIR)/hotspot_jni.d
 325 
 326 $(DtraceOutDir)/hs_private.h: $(DTRACE_COMMON_SRCDIR)/hs_private.d | $(DtraceOutDir)
 327         $(QUIETLY) $(DTRACE_PROG) $(DTRACE_OPTS) -C -I. -h -o $@ -s $(DTRACE_COMMON_SRCDIR)/hs_private.d
 328 
 329 dtrace_gen_headers: $(DtraceOutDir)/hotspot.h $(DtraceOutDir)/hotspot_jni.h $(DtraceOutDir)/hs_private.h
 330 
 331 # The jhelper.d and hotspot probes are separated into two different SUNW_dof sections.
 332 # Now the jhelper.d is built without the -Xlazyload flag.
 333 $(DTRACE_JHELPER.o) : $(DTRACE_JHELPER).d $(JVMOFFS).h $(JVMOFFS)Index.h
 334         @echo $(LOG_INFO) Compiling $(DTRACE_JHELPER).d
 335         $(QUIETLY) $(DTRACE_PROG) $(DTRACE_OPTS) -C -I. -G -o $@ -s $(DTRACE_JHELPER).d
 336 
 337 .PHONY: dtraceCheck
 338 
 339 SYSTEM_DTRACE_H = /usr/include/dtrace.h
 340 SYSTEM_DTRACE_PROG = /usr/sbin/dtrace
 341 PATCH_DTRACE_PROG = /opt/SUNWdtrd/sbin/dtrace
 342 systemDtraceFound := $(wildcard ${SYSTEM_DTRACE_PROG})
 343 patchDtraceFound := $(wildcard ${PATCH_DTRACE_PROG})
 344 systemDtraceHdrFound := $(wildcard $(SYSTEM_DTRACE_H))
 345 
 346 ifneq ("$(systemDtraceHdrFound)", "") 
 347 CFLAGS += -DHAVE_DTRACE_H
 348 endif
 349 
 350 ifneq ("$(patchDtraceFound)", "")
 351 DTRACE_PROG=$(PATCH_DTRACE_PROG)
 352 DTRACE_INCL=-I/opt/SUNWdtrd/include
 353 else
 354 ifneq ("$(systemDtraceFound)", "")
 355 DTRACE_PROG=$(SYSTEM_DTRACE_PROG)
 356 else
 357 
 358 endif # ifneq ("$(systemDtraceFound)", "")
 359 endif # ifneq ("$(patchDtraceFound)", "")
 360 
 361 ifneq ("${DTRACE_PROG}", "")
 362 ifeq ("${HOTSPOT_DISABLE_DTRACE_PROBES}", "")
 363 
 364 DTRACE_OBJS = $(DTRACE.o) $(JVMOFFS.o) $(DTRACE_JHELPER.o)
 365 CFLAGS += $(DTRACE_INCL) -DDTRACE_ENABLED
 366 MAPFILE_DTRACE_OPT = $(MAPFILE_DTRACE)
 367 
 368 dtraceCheck:
 369 
 370 else # manually disabled
 371 
 372 dtraceCheck:
 373         $(QUIETLY) echo $(LOG_INFO) "**NOTICE** Dtrace support disabled via environment variable"
 374 
 375 endif # ifeq ("${HOTSPOT_DISABLE_DTRACE_PROBES}", "")
 376 
 377 else # No dtrace program found
 378 
 379 dtraceCheck:
 380         $(QUIETLY) echo $(LOG_INFO) "**NOTICE** Dtrace support disabled: not supported by system"
 381 
 382 endif # ifneq ("${dtraceFound}", "")
 383 
 384 endif # ifdef USE_GCC
 385 
 386 else # CORE build
 387 
 388 dtraceCheck:
 389         $(QUIETLY) echo $(LOG_INFO) "**NOTICE** Dtrace support disabled for CORE builds"
 390 
 391 endif # ifneq ("${TYPE}", "CORE")