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