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_LIBS += \
  51     $(JVM_LIBS_FEATURES) \
  52     #
  53 
  54 # These files and directories are always excluded
  55 JVM_EXCLUDE_FILES += args.cc
  56 JVM_EXCLUDES += adlc
  57 
  58 # Needed by vm_version.cpp
  59 ifeq ($(OPENJDK_TARGET_CPU), x86_64)
  60   OPENJDK_TARGET_CPU_VM_VERSION := amd64
  61 else ifeq ($(OPENJDK_TARGET_CPU), sparcv9)
  62   OPENJDK_TARGET_CPU_VM_VERSION := sparc
  63 else ifeq ($(HOTSPOT_TARGET_CPU_ARCH), arm)
  64   ifeq ($(OPENJDK_TARGET_CPU), aarch64)
  65     # This sets the Oracle Aarch64 port to use arm64
  66     # while the original Aarch64 port uses aarch64
  67     OPENJDK_TARGET_CPU_VM_VERSION := arm64
  68   endif
  69 else
  70   OPENJDK_TARGET_CPU_VM_VERSION := $(OPENJDK_TARGET_CPU)
  71 endif
  72 
  73 CFLAGS_VM_VERSION := \
  74     $(VERSION_CFLAGS) \
  75     -DHOTSPOT_VERSION_STRING='"$(VERSION_STRING)"' \
  76     -DDEBUG_LEVEL='"$(DEBUG_LEVEL)"' \
  77     -DHOTSPOT_BUILD_USER='"$(USERNAME)"' \
  78     -DHOTSPOT_VM_DISTRO='"$(HOTSPOT_VM_DISTRO)"' \
  79     -DCPU='"$(OPENJDK_TARGET_CPU_VM_VERSION)"' \
  80     #
  81 
  82 ################################################################################
  83 # Disabled warnings
  84 
  85 DISABLED_WARNINGS_gcc := extra parentheses comment unknown-pragmas address \
  86     delete-non-virtual-dtor char-subscripts array-bounds int-in-bool-context \
  87     ignored-qualifiers  missing-field-initializers implicit-fallthrough \
  88     empty-body strict-overflow sequence-point maybe-uninitialized \
  89     misleading-indentation
  90 
  91 ifeq ($(call check-jvm-feature, zero), true)
  92   DISABLED_WARNINGS_gcc += return-type switch
  93 endif
  94 
  95 DISABLED_WARNINGS_clang := tautological-compare deprecated-declarations \
  96     undefined-var-template sometimes-uninitialized unknown-pragmas \
  97     delete-non-virtual-dtor missing-braces char-subscripts \
  98     ignored-qualifiers missing-field-initializers mismatched-tags
  99 
 100 DISABLED_WARNINGS_solstudio := labelnotused hidef w_novirtualdescr inlafteruse \
 101     unknownpragma doubunder w_enumnotused w_toomanyenumnotused \
 102     wvarhidenmem wunreachable wnoretvalue notemsource
 103 
 104 DISABLED_WARNINGS_xlc := 1540-0216 1540-0198 1540-1090 1540-1639 1540-1088 \
 105     1500-010
 106 
 107 DISABLED_WARNINGS_microsoft :=
 108 
 109 
 110 
 111 ################################################################################
 112 # Platform specific setup
 113 
 114 # ARM source selection
 115 
 116 ifeq ($(OPENJDK_TARGET_OS)-$(OPENJDK_TARGET_CPU), linux-arm)
 117   JVM_EXCLUDE_PATTERNS += arm_64
 118 
 119 else ifeq ($(OPENJDK_TARGET_OS)-$(OPENJDK_TARGET_CPU), linux-aarch64)
 120   # For 64-bit arm builds, we use the 64 bit hotspot/src/cpu/arm
 121   # hotspot sources if HOTSPOT_TARGET_CPU_ARCH is set to arm.
 122   # Exclude the aarch64 and 32 bit arm files for this build.
 123   ifeq ($(HOTSPOT_TARGET_CPU_ARCH), arm)
 124     JVM_EXCLUDE_PATTERNS += arm_32 aarch64
 125   endif
 126 endif
 127 
 128 ifneq ($(filter $(OPENJDK_TARGET_OS), linux macosx windows), )
 129   JVM_PRECOMPILED_HEADER := $(TOPDIR)/src/hotspot/share/precompiled/precompiled.hpp
 130 endif
 131 
 132 ifeq ($(OPENJDK_TARGET_CPU), x86)
 133   JVM_EXCLUDE_PATTERNS += x86_64
 134 else ifeq ($(OPENJDK_TARGET_CPU), x86_64)
 135   JVM_EXCLUDE_PATTERNS += x86_32
 136 endif
 137 
 138 # Inline assembly for solaris
 139 ifeq ($(OPENJDK_TARGET_OS), solaris)
 140   ifeq ($(OPENJDK_TARGET_CPU), x86_64)
 141     JVM_CFLAGS += $(TOPDIR)/src/hotspot/os_cpu/solaris_x86/solaris_x86_64.il
 142   else ifeq ($(OPENJDK_TARGET_CPU), sparcv9)
 143     JVM_CFLAGS += $(TOPDIR)/src/hotspot/os_cpu/solaris_sparc/solaris_sparc.il
 144   endif
 145   # Exclude warnings in devstudio 12.6
 146   ifeq ($(CC_VERSION_NUMBER), 5.15)
 147     DISABLED_WARNINGS_solstudio += SEC_ARR_OUTSIDE_BOUND_READ \
 148       SEC_ARR_OUTSIDE_BOUND_WRITE
 149   endif
 150 endif
 151 
 152 ifeq ($(OPENJDK_TARGET_OS)-$(OPENJDK_TARGET_CPU), solaris-sparcv9)
 153   ifeq ($(COMPILE_WITH_DEBUG_SYMBOLS), false)
 154     # NOTE: In the old build, we weirdly enough set -g/-g0 always, regardless
 155     # of if debug symbols were needed. Without it, compilation fails on
 156     # sparc! :-(
 157     JVM_CFLAGS += -g0
 158   endif
 159 endif
 160 
 161 ifeq ($(OPENJDK_TARGET_OS), windows)
 162   ifeq ($(OPENJDK_TARGET_CPU_BITS), 64)
 163     RC_DESC := 64-Bit$(SPACE)
 164   endif
 165   JVM_RCFLAGS += -D"HS_FILEDESC=$(HOTSPOT_VM_DISTRO) $(RC_DESC)$(JVM_VARIANT) VM"
 166 endif
 167 
 168 JVM_OPTIMIZATION ?= HIGHEST_JVM
 169 
 170 # Need to set JVM_STRIPFLAGS to the default value from SPEC since the STRIPFLAGS
 171 # parameter to SetupNativeCompilation allows an empty value to override the
 172 # default.
 173 JVM_STRIPFLAGS ?= $(STRIPFLAGS)
 174 
 175 ################################################################################
 176 # Now set up the actual compilation of the main hotspot native library
 177 
 178 $(eval $(call SetupNativeCompilation, BUILD_LIBJVM, \
 179     NAME := jvm, \
 180     TOOLCHAIN := TOOLCHAIN_LINK_CXX, \
 181     OUTPUT_DIR := $(JVM_LIB_OUTPUTDIR), \
 182     SRC := $(JVM_SRC_DIRS), \
 183     EXCLUDES := $(JVM_EXCLUDES), \
 184     EXCLUDE_FILES := $(JVM_EXCLUDE_FILES), \
 185     EXCLUDE_PATTERNS := $(JVM_EXCLUDE_PATTERNS), \
 186     EXTRA_OBJECT_FILES := $(DTRACE_EXTRA_OBJECT_FILES), \
 187     CFLAGS := $(JVM_CFLAGS), \
 188     vm_version.cpp_CXXFLAGS := $(CFLAGS_VM_VERSION), \
 189     arguments.cpp_CXXFLAGS := $(CFLAGS_VM_VERSION), \
 190     DISABLED_WARNINGS_gcc := $(DISABLED_WARNINGS_gcc), \
 191     DISABLED_WARNINGS_clang := $(DISABLED_WARNINGS_clang), \
 192     DISABLED_WARNINGS_solstudio := $(DISABLED_WARNINGS_solstudio), \
 193     DISABLED_WARNINGS_xlc := $(DISABLED_WARNINGS_xlc), \
 194     DISABLED_WARNINGS_microsoft := $(DISABLED_WARNINGS_microsoft), \
 195     ASFLAGS := $(JVM_ASFLAGS), \
 196     LDFLAGS := $(JVM_LDFLAGS), \
 197     LIBS := $(JVM_LIBS), \
 198     OPTIMIZATION := $(JVM_OPTIMIZATION), \
 199     OBJECT_DIR := $(JVM_OUTPUTDIR)/objs, \
 200     MAPFILE := $(JVM_MAPFILE), \
 201     USE_MAPFILE_FOR_SYMBOLS := true, \
 202     STRIPFLAGS := $(JVM_STRIPFLAGS), \
 203     EMBED_MANIFEST := true, \
 204     RC_FLAGS := $(JVM_RCFLAGS), \
 205     VERSIONINFO_RESOURCE := $(TOPDIR)/src/hotspot/os/windows/version.rc, \
 206     PRECOMPILED_HEADER := $(JVM_PRECOMPILED_HEADER), \
 207     PRECOMPILED_HEADER_EXCLUDE := $(JVM_PRECOMPILED_HEADER_EXCLUDE), \
 208 ))
 209 
 210 # Always recompile vm_version.cpp if libjvm needs to be relinked. This ensures
 211 # that the internal vm version is updated as it relies on __DATE__ and __TIME__
 212 # macros.
 213 VM_VERSION_OBJ := $(JVM_OUTPUTDIR)/objs/vm_version$(OBJ_SUFFIX)
 214 $(VM_VERSION_OBJ): $(filter-out $(VM_VERSION_OBJ) $(JVM_MAPFILE), \
 215     $(BUILD_LIBJVM_TARGET_DEPS))
 216 
 217 ifeq ($(OPENJDK_TARGET_OS), windows)
 218   # It doesn't matter which jvm.lib file gets exported, but we need
 219   # to pick just one.
 220   ifeq ($(JVM_VARIANT), $(JVM_VARIANT_MAIN))
 221     $(eval $(call SetupCopyFiles, COPY_JVM_LIB, \
 222         DEST := $(LIB_OUTPUTDIR), \
 223         FILES :=$(BUILD_LIBJVM_IMPORT_LIBRARY), \
 224     ))
 225     TARGETS += $(COPY_JVM_LIB)
 226   endif
 227 endif
 228 
 229 # AIX warning explanation:
 230 # 1500-010  : (W) WARNING in ...: Infinite loop.  Program may not stop.
 231 #             There are several infinite loops in the vm, so better suppress.
 232 # 1540-0198 : (W) The omitted keyword "private" is assumed for base class "...".
 233 # 1540-0216 : (W) An expression of type .. cannot be converted to type ..
 234 #             In hotspot this fires for functionpointer to pointer conversions
 235 # 1540-1088 : (W) The exception specification is being ignored.
 236 #             In hotspot this is caused by throw() in declaration of new() in nmethod.hpp.
 237 # 1540-1090 : (I) The destructor of "..." might not be called.
 238 # 1540-1639 : (I) The behavior of long type bit fields has changed ...
 239 
 240 # Include mapfile generation. It relies on BUILD_LIBJVM_ALL_OBJS which is only
 241 # defined after the above call to BUILD_LIBJVM. Mapfile will be generated
 242 # after all object files are built, but before the jvm library is linked.
 243 include lib/JvmMapfile.gmk
 244 
 245 TARGETS += $(BUILD_LIBJVM)
 246 
 247 ################################################################################
 248 # Hotspot disallows the use of global operators 'new' and 'delete'. This build
 249 # time check helps enforce this requirement. If you trigger this check and the
 250 # reference is not obvious from the source, GNU objdump can be used to help find
 251 # the reference if compiled with GCC:
 252 #
 253 # objdump -lrdSC <path/to/file.o>
 254 #
 255 # -C demangle
 256 # -d disassemble
 257 # -r print relocation entries, interspersed with the disassembly
 258 # -S print source code, intermixed with disassembly
 259 # -l include filenames and line numbers
 260 #
 261 # Search the output for the operator(s) of interest, to see where they are
 262 # referenced.
 263 
 264 ifneq ($(filter $(TOOLCHAIN_TYPE), gcc clang solstudio), )
 265 
 266   DEMANGLED_REGEXP := [^:]operator (new|delete)
 267 
 268   # Running c++filt to find offending symbols in all files is too expensive,
 269   # especially on Solaris, so use mangled names when looking for symbols.
 270   # Save the demangling for when something is actually found.
 271   ifeq ($(TOOLCHAIN_TYPE), solstudio)
 272     MANGLED_SYMS := \
 273         __1c2n6FL_pv_ \
 274         __1c2N6FL_pv_ \
 275         __1c2k6Fpv_v_ \
 276         __1c2K6Fpv_v_ \
 277         #
 278     UNDEF_PATTERN := UNDEF
 279   else
 280     MANGLED_SYMS := \
 281         _ZdaPv \
 282         _ZdlPv \
 283         _Znam \
 284         _Znwm \
 285         #
 286     UNDEF_PATTERN := ' U '
 287   endif
 288 
 289   define SetupOperatorNewDeleteCheck
 290     $1.op_check: $1
 291         if [ -n "`$(NM) $$< | $(GREP) $(addprefix -e , $(MANGLED_SYMS)) \
 292             | $(GREP) $(UNDEF_PATTERN)`" ]; then \
 293           $(ECHO) "$$<: Error: Use of global operators new and delete is not allowed in Hotspot:"; \
 294           $(NM) $$< | $(CXXFILT) | $(EGREP) '$(DEMANGLED_REGEXP)' | $(GREP) $(UNDEF_PATTERN); \
 295           $(ECHO) "See: $(TOPDIR)/make/hotspot/lib/CompileJvm.gmk"; \
 296           exit 1; \
 297         fi
 298         $(TOUCH) $$@
 299 
 300     TARGETS += $1.op_check
 301   endef
 302 
 303   $(foreach o, $(BUILD_LIBJVM_ALL_OBJS), $(eval $(call SetupOperatorNewDeleteCheck,$o)))
 304 endif