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