1 #
   2 # Copyright (c) 2013, 2018, 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.  Oracle designates this
   8 # particular file as subject to the "Classpath" exception as provided
   9 # by Oracle in the LICENSE file that accompanied this code.
  10 #
  11 # This code is distributed in the hope that it will be useful, but WITHOUT
  12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 # version 2 for more details (a copy is included in the LICENSE file that
  15 # accompanied this code).
  16 #
  17 # You should have received a copy of the GNU General Public License version
  18 # 2 along with this work; if not, write to the Free Software Foundation,
  19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20 #
  21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22 # or visit www.oracle.com if you need additional information or have any
  23 # questions.
  24 #
  25 
  26 # Include support files that will setup compiler flags due to the selected
  27 # jvm feature set, specific file overrides, and general flags.
  28 include lib/JvmFeatures.gmk
  29 include lib/JvmOverrideFiles.gmk
  30 include lib/JvmFlags.gmk
  31 
  32 # Include support files that will setup DTRACE_EXTRA_OBJECT_FILES.
  33 include lib/JvmDtraceObjects.gmk
  34 
  35 ################################################################################
  36 # Setup compilation of the main Hotspot native library (libjvm).
  37 
  38 JVM_OUTPUTDIR := $(JVM_VARIANT_OUTPUTDIR)/libjvm
  39 JVM_MAPFILE := $(JVM_OUTPUTDIR)/mapfile
  40 
  41 ################################################################################
  42 # Platform independent setup
  43 
  44 JVM_LDFLAGS += \
  45     $(SHARED_LIBRARY_FLAGS) \
  46     $(JVM_LDFLAGS_FEATURES) \
  47     $(EXTRA_LDFLAGS) \
  48     #
  49 
  50 JVM_ASFLAGS += $(EXTRA_ASFLAGS)
  51 
  52 JVM_LIBS += \
  53     $(JVM_LIBS_FEATURES) \
  54     #
  55 
  56 # These files and directories are always excluded
  57 JVM_EXCLUDE_FILES += args.cc
  58 JVM_EXCLUDES += adlc
  59 
  60 # Needed by abstract_vm_version.cpp
  61 ifeq ($(OPENJDK_TARGET_CPU), x86_64)
  62   OPENJDK_TARGET_CPU_VM_VERSION := amd64
  63 else ifeq ($(OPENJDK_TARGET_CPU), sparcv9)
  64   OPENJDK_TARGET_CPU_VM_VERSION := sparc
  65 else ifeq ($(HOTSPOT_TARGET_CPU_ARCH), arm)
  66   ifeq ($(OPENJDK_TARGET_CPU), aarch64)
  67     # This sets the Oracle Aarch64 port to use arm64
  68     # while the original Aarch64 port uses aarch64
  69     OPENJDK_TARGET_CPU_VM_VERSION := arm64
  70   endif
  71 else
  72   OPENJDK_TARGET_CPU_VM_VERSION := $(OPENJDK_TARGET_CPU)
  73 endif
  74 
  75 CFLAGS_VM_VERSION := \
  76     $(VERSION_CFLAGS) \
  77     -DHOTSPOT_VERSION_STRING='"$(VERSION_STRING)"' \
  78     -DDEBUG_LEVEL='"$(DEBUG_LEVEL)"' \
  79     -DHOTSPOT_BUILD_USER='"$(USERNAME)"' \
  80     -DHOTSPOT_VM_DISTRO='"$(HOTSPOT_VM_DISTRO)"' \
  81     -DCPU='"$(OPENJDK_TARGET_CPU_VM_VERSION)"' \
  82     #
  83 
  84 ################################################################################
  85 # Platform specific setup
  86 
  87 # ARM source selection
  88 
  89 ifeq ($(OPENJDK_TARGET_OS)-$(OPENJDK_TARGET_CPU), linux-arm)
  90   JVM_EXCLUDE_PATTERNS += arm_64
  91 
  92 else ifeq ($(OPENJDK_TARGET_OS)-$(OPENJDK_TARGET_CPU), linux-aarch64)
  93   # For 64-bit arm builds, we use the 64 bit hotspot/src/cpu/arm
  94   # hotspot sources if HOTSPOT_TARGET_CPU_ARCH is set to arm.
  95   # Exclude the aarch64 and 32 bit arm files for this build.
  96   ifeq ($(HOTSPOT_TARGET_CPU_ARCH), arm)
  97     JVM_EXCLUDE_PATTERNS += arm_32 aarch64
  98   endif
  99 endif
 100 
 101 ifneq ($(filter $(OPENJDK_TARGET_OS), linux macosx windows), )
 102   JVM_PRECOMPILED_HEADER := $(TOPDIR)/src/hotspot/share/precompiled/precompiled.hpp
 103 endif
 104 
 105 ifeq ($(OPENJDK_TARGET_CPU), x86)
 106   JVM_EXCLUDE_PATTERNS += x86_64
 107 else ifeq ($(OPENJDK_TARGET_CPU), x86_64)
 108   JVM_EXCLUDE_PATTERNS += x86_32
 109 endif
 110 
 111 # Inline assembly for solaris
 112 ifeq ($(OPENJDK_TARGET_OS), solaris)
 113   ifeq ($(OPENJDK_TARGET_CPU), x86_64)
 114     JVM_CFLAGS += $(TOPDIR)/src/hotspot/os_cpu/solaris_x86/solaris_x86_64.il
 115   else ifeq ($(OPENJDK_TARGET_CPU), sparcv9)
 116     JVM_CFLAGS += $(TOPDIR)/src/hotspot/os_cpu/solaris_sparc/solaris_sparc.il
 117   endif
 118   # Exclude warnings in devstudio 12.6
 119   ifeq ($(CC_VERSION_NUMBER), 5.15)
 120     DISABLED_WARNINGS_solstudio := SEC_ARR_OUTSIDE_BOUND_READ \
 121       SEC_ARR_OUTSIDE_BOUND_WRITE
 122   endif
 123 endif
 124 
 125 ifeq ($(OPENJDK_TARGET_OS)-$(OPENJDK_TARGET_CPU), solaris-sparcv9)
 126   ifeq ($(COMPILE_WITH_DEBUG_SYMBOLS), false)
 127     # NOTE: In the old build, we weirdly enough set -g/-g0 always, regardless
 128     # of if debug symbols were needed. Without it, compilation fails on
 129     # sparc! :-(
 130     JVM_CFLAGS += -g0
 131   endif
 132 endif
 133 
 134 ifeq ($(OPENJDK_TARGET_OS), windows)
 135   ifeq ($(OPENJDK_TARGET_CPU_BITS), 64)
 136     RC_DESC := 64-Bit$(SPACE)
 137   endif
 138   JVM_RCFLAGS += -D"HS_FILEDESC=$(HOTSPOT_VM_DISTRO) $(RC_DESC)$(JVM_VARIANT) VM"
 139 endif
 140 
 141 JVM_OPTIMIZATION ?= HIGHEST_JVM
 142 
 143 # Need to set JVM_STRIPFLAGS to the default value from SPEC since the STRIPFLAGS
 144 # parameter to SetupNativeCompilation allows an empty value to override the
 145 # default.
 146 JVM_STRIPFLAGS ?= $(STRIPFLAGS)
 147 
 148 ################################################################################
 149 # Now set up the actual compilation of the main hotspot native library
 150 
 151 $(eval $(call SetupNativeCompilation, BUILD_LIBJVM, \
 152     NAME := jvm, \
 153     TOOLCHAIN := TOOLCHAIN_LINK_CXX, \
 154     OUTPUT_DIR := $(JVM_LIB_OUTPUTDIR), \
 155     SRC := $(JVM_SRC_DIRS), \
 156     EXCLUDES := $(JVM_EXCLUDES), \
 157     EXCLUDE_FILES := $(JVM_EXCLUDE_FILES), \
 158     EXCLUDE_PATTERNS := $(JVM_EXCLUDE_PATTERNS), \
 159     EXTRA_OBJECT_FILES := $(DTRACE_EXTRA_OBJECT_FILES), \
 160     CFLAGS := $(JVM_CFLAGS), \
 161     abstract_vm_version.cpp_CXXFLAGS := $(CFLAGS_VM_VERSION), \
 162     arguments.cpp_CXXFLAGS := $(CFLAGS_VM_VERSION), \
 163     DISABLED_WARNINGS_clang := tautological-compare, \
 164     DISABLED_WARNINGS_solstudio := $(DISABLED_WARNINGS_solstudio), \
 165     DISABLED_WARNINGS_xlc := 1540-0216 1540-0198 1540-1090 1540-1639 \
 166         1540-1088 1500-010, \
 167     ASFLAGS := $(JVM_ASFLAGS), \
 168     LDFLAGS := $(JVM_LDFLAGS), \
 169     LIBS := $(JVM_LIBS), \
 170     OPTIMIZATION := $(JVM_OPTIMIZATION), \
 171     OBJECT_DIR := $(JVM_OUTPUTDIR)/objs, \
 172     MAPFILE := $(JVM_MAPFILE), \
 173     USE_MAPFILE_FOR_SYMBOLS := true, \
 174     STRIPFLAGS := $(JVM_STRIPFLAGS), \
 175     EMBED_MANIFEST := true, \
 176     RC_FLAGS := $(JVM_RCFLAGS), \
 177     VERSIONINFO_RESOURCE := $(TOPDIR)/src/hotspot/os/windows/version.rc, \
 178     PRECOMPILED_HEADER := $(JVM_PRECOMPILED_HEADER), \
 179     PRECOMPILED_HEADER_EXCLUDE := $(JVM_PRECOMPILED_HEADER_EXCLUDE), \
 180 ))
 181 
 182 # Always recompile abstract_vm_version.cpp if libjvm needs to be relinked. This ensures
 183 # that the internal vm version is updated as it relies on __DATE__ and __TIME__
 184 # macros.
 185 ABSTRACT_VM_VERSION_OBJ := $(JVM_OUTPUTDIR)/objs/abstract_vm_version$(OBJ_SUFFIX)
 186 $(ABSTRACT_VM_VERSION_OBJ): $(filter-out $(ABSTRACT_VM_VERSION_OBJ) $(JVM_MAPFILE), \
 187     $(BUILD_LIBJVM_TARGET_DEPS))
 188 
 189 ifneq ($(GENERATE_COMPILE_COMMANDS_ONLY), true)
 190   ifeq ($(OPENJDK_TARGET_OS), windows)
 191     # It doesn't matter which jvm.lib file gets exported, but we need
 192     # to pick just one.
 193     ifeq ($(JVM_VARIANT), $(JVM_VARIANT_MAIN))
 194       $(eval $(call SetupCopyFiles, COPY_JVM_LIB, \
 195           DEST := $(LIB_OUTPUTDIR), \
 196           FILES :=$(BUILD_LIBJVM_IMPORT_LIBRARY), \
 197       ))
 198       TARGETS += $(COPY_JVM_LIB)
 199     endif
 200   endif
 201 endif
 202 
 203 # AIX warning explanation:
 204 # 1500-010  : (W) WARNING in ...: Infinite loop.  Program may not stop.
 205 #             There are several infinite loops in the vm, so better suppress.
 206 # 1540-0198 : (W) The omitted keyword "private" is assumed for base class "...".
 207 # 1540-0216 : (W) An expression of type .. cannot be converted to type ..
 208 #             In hotspot this fires for functionpointer to pointer conversions
 209 # 1540-1088 : (W) The exception specification is being ignored.
 210 #             In hotspot this is caused by throw() in declaration of new() in nmethod.hpp.
 211 # 1540-1090 : (I) The destructor of "..." might not be called.
 212 # 1540-1639 : (I) The behavior of long type bit fields has changed ...
 213 
 214 # Include mapfile generation. It relies on BUILD_LIBJVM_ALL_OBJS which is only
 215 # defined after the above call to BUILD_LIBJVM. Mapfile will be generated
 216 # after all object files are built, but before the jvm library is linked.
 217 include lib/JvmMapfile.gmk
 218 
 219 TARGETS += $(BUILD_LIBJVM)
 220 
 221 ################################################################################
 222 # Hotspot disallows the use of global operators 'new' and 'delete'. This build
 223 # time check helps enforce this requirement. If you trigger this check and the
 224 # reference is not obvious from the source, GNU objdump can be used to help find
 225 # the reference if compiled with GCC:
 226 #
 227 # objdump -lrdSC <path/to/file.o>
 228 #
 229 # -C demangle
 230 # -d disassemble
 231 # -r print relocation entries, interspersed with the disassembly
 232 # -S print source code, intermixed with disassembly
 233 # -l include filenames and line numbers
 234 #
 235 # Search the output for the operator(s) of interest, to see where they are
 236 # referenced.
 237 
 238 ifneq ($(GENERATE_COMPILE_COMMANDS_ONLY), true)
 239   ifneq ($(filter $(TOOLCHAIN_TYPE), gcc clang solstudio), )
 240 
 241     DEMANGLED_REGEXP := [^:]operator (new|delete)
 242 
 243     # Running c++filt to find offending symbols in all files is too expensive,
 244     # especially on Solaris, so use mangled names when looking for symbols.
 245     # Save the demangling for when something is actually found.
 246     ifeq ($(TOOLCHAIN_TYPE), solstudio)
 247       MANGLED_SYMS := \
 248           __1c2n6FL_pv_ \
 249           __1c2N6FL_pv_ \
 250           __1c2k6Fpv_v_ \
 251           __1c2K6Fpv_v_ \
 252           #
 253       UNDEF_PATTERN := UNDEF
 254     else
 255       MANGLED_SYMS := \
 256           _ZdaPv \
 257           _ZdlPv \
 258           _Znam \
 259           _Znwm \
 260           #
 261       UNDEF_PATTERN := ' U '
 262     endif
 263 
 264     define SetupOperatorNewDeleteCheck
 265         $1.op_check: $1
 266           if [ -n "`$(NM) $$< | $(GREP) $(addprefix -e , $(MANGLED_SYMS)) \
 267               | $(GREP) $(UNDEF_PATTERN)`" ]; then \
 268             $(ECHO) "$$<: Error: Use of global operators new and delete is not allowed in Hotspot:"; \
 269             $(NM) $$< | $(CXXFILT) | $(EGREP) '$(DEMANGLED_REGEXP)' | $(GREP) $(UNDEF_PATTERN); \
 270             $(ECHO) "See: $(TOPDIR)/make/hotspot/lib/CompileJvm.gmk"; \
 271             exit 1; \
 272           fi
 273           $(TOUCH) $$@
 274 
 275       TARGETS += $1.op_check
 276     endef
 277 
 278     $(foreach o, $(BUILD_LIBJVM_ALL_OBJS), $(eval $(call SetupOperatorNewDeleteCheck,$o)))
 279   endif
 280 endif