# # Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved. # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. # # This code is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License version 2 only, as # published by the Free Software Foundation. Oracle designates this # particular file as subject to the "Classpath" exception as provided # by Oracle in the LICENSE file that accompanied this code. # # This code is distributed in the hope that it will be useful, but WITHOUT # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License # version 2 for more details (a copy is included in the LICENSE file that # accompanied this code). # # You should have received a copy of the GNU General Public License version # 2 along with this work; if not, write to the Free Software Foundation, # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. # # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA # or visit www.oracle.com if you need additional information or have any # questions. # # Include support files that will setup compiler flags due to the selected # jvm feature set, specific file overrides, and general flags. include lib/JvmFeatures.gmk include lib/JvmOverrideFiles.gmk include lib/JvmFlags.gmk # Include support files that will setup DTRACE_EXTRA_OBJECT_FILES. include lib/JvmDtraceObjects.gmk ################################################################################ # Setup compilation of the main Hotspot native library (libjvm). JVM_OUTPUTDIR := $(JVM_VARIANT_OUTPUTDIR)/libjvm JVM_MAPFILE := $(JVM_OUTPUTDIR)/mapfile ################################################################################ # Platform independent setup JVM_LDFLAGS += \ $(SHARED_LIBRARY_FLAGS) \ $(JVM_LDFLAGS_FEATURES) \ $(EXTRA_LDFLAGS) \ # JVM_LIBS += \ $(JVM_LIBS_FEATURES) \ $(SOFTFLOAT_LIBS) \ # # These files and directories are always excluded JVM_EXCLUDE_FILES += args.cc JVM_EXCLUDES += adlc # Needed by vm_version.cpp ifeq ($(OPENJDK_TARGET_CPU), x86_64) OPENJDK_TARGET_CPU_VM_VERSION := amd64 else ifeq ($(OPENJDK_TARGET_CPU), sparcv9) OPENJDK_TARGET_CPU_VM_VERSION := sparc else OPENJDK_TARGET_CPU_VM_VERSION := $(OPENJDK_TARGET_CPU) endif CFLAGS_VM_VERSION := \ $(VERSION_CFLAGS) \ -DHOTSPOT_VERSION_STRING='"$(VERSION_STRING)"' \ -DDEBUG_LEVEL='"$(DEBUG_LEVEL)"' \ -DHOTSPOT_BUILD_USER='"$(USERNAME)"' \ -DHOTSPOT_VM_DISTRO='"$(HOTSPOT_VM_DISTRO)"' \ -DCPU='"$(OPENJDK_TARGET_CPU_VM_VERSION)"' \ # ################################################################################ # Disabled warnings DISABLED_WARNINGS_gcc := extra parentheses comment unknown-pragmas address \ delete-non-virtual-dtor char-subscripts array-bounds int-in-bool-context \ ignored-qualifiers missing-field-initializers implicit-fallthrough \ empty-body strict-overflow sequence-point maybe-uninitialized \ misleading-indentation ifeq ($(call check-jvm-feature, zero), true) DISABLED_WARNINGS_gcc += return-type switch endif DISABLED_WARNINGS_clang := tautological-compare \ undefined-var-template sometimes-uninitialized unknown-pragmas \ delete-non-virtual-dtor missing-braces char-subscripts \ ignored-qualifiers missing-field-initializers mismatched-tags DISABLED_WARNINGS_solstudio := labelnotused hidef w_novirtualdescr inlafteruse \ unknownpragma doubunder w_enumnotused w_toomanyenumnotused \ wvarhidenmem wunreachable wnoretvalue notemsource DISABLED_WARNINGS_xlc := 1540-0216 1540-0198 1540-1090 1540-1639 1540-1088 \ 1500-010 DISABLED_WARNINGS_microsoft := ################################################################################ # Platform specific setup # ARM source selection ifeq ($(OPENJDK_TARGET_OS)-$(OPENJDK_TARGET_CPU), linux-arm) JVM_EXCLUDE_PATTERNS += arm_64 else ifeq ($(OPENJDK_TARGET_OS)-$(OPENJDK_TARGET_CPU), linux-aarch64) # For 64-bit arm builds, we use the 64 bit hotspot/src/cpu/arm # hotspot sources if HOTSPOT_TARGET_CPU_ARCH is set to arm. # Exclude the aarch64 and 32 bit arm files for this build. ifeq ($(HOTSPOT_TARGET_CPU_ARCH), arm) JVM_EXCLUDE_PATTERNS += arm_32 aarch64 endif endif ifneq ($(filter $(OPENJDK_TARGET_OS), linux macosx windows), ) JVM_PRECOMPILED_HEADER := $(TOPDIR)/src/hotspot/share/precompiled/precompiled.hpp endif ifeq ($(OPENJDK_TARGET_CPU), x86) JVM_EXCLUDE_PATTERNS += x86_64 else ifeq ($(OPENJDK_TARGET_CPU), x86_64) JVM_EXCLUDE_PATTERNS += x86_32 endif # Inline assembly for solaris ifeq ($(OPENJDK_TARGET_OS), solaris) ifeq ($(OPENJDK_TARGET_CPU), x86_64) JVM_CFLAGS += $(TOPDIR)/src/hotspot/os_cpu/solaris_x86/solaris_x86_64.il else ifeq ($(OPENJDK_TARGET_CPU), sparcv9) JVM_CFLAGS += $(TOPDIR)/src/hotspot/os_cpu/solaris_sparc/solaris_sparc.il endif # Exclude warnings in devstudio 12.6 ifeq ($(CC_VERSION_NUMBER), 5.15) DISABLED_WARNINGS_solstudio += SEC_ARR_OUTSIDE_BOUND_READ \ SEC_ARR_OUTSIDE_BOUND_WRITE endif endif ifeq ($(OPENJDK_TARGET_OS)-$(OPENJDK_TARGET_CPU), solaris-sparcv9) ifeq ($(COMPILE_WITH_DEBUG_SYMBOLS), false) # NOTE: In the old build, we weirdly enough set -g/-g0 always, regardless # of if debug symbols were needed. Without it, compilation fails on # sparc! :-( JVM_CFLAGS += -g0 endif endif ifeq ($(OPENJDK_TARGET_OS), windows) ifeq ($(OPENJDK_TARGET_CPU_BITS), 64) RC_DESC := 64-Bit$(SPACE) endif JVM_RCFLAGS += -D"HS_FILEDESC=$(HOTSPOT_VM_DISTRO) $(RC_DESC)$(JVM_VARIANT) VM" endif JVM_OPTIMIZATION ?= HIGHEST_JVM # Need to set JVM_STRIPFLAGS to the default value from SPEC since the STRIPFLAGS # parameter to SetupNativeCompilation allows an empty value to override the # default. JVM_STRIPFLAGS ?= $(STRIPFLAGS) ################################################################################ # Now set up the actual compilation of the main hotspot native library $(eval $(call SetupNativeCompilation, BUILD_LIBJVM, \ NAME := jvm, \ TOOLCHAIN := TOOLCHAIN_LINK_CXX, \ OUTPUT_DIR := $(JVM_LIB_OUTPUTDIR), \ SRC := $(JVM_SRC_DIRS), \ EXCLUDES := $(JVM_EXCLUDES), \ EXCLUDE_FILES := $(JVM_EXCLUDE_FILES), \ EXCLUDE_PATTERNS := $(JVM_EXCLUDE_PATTERNS), \ EXTRA_OBJECT_FILES := $(DTRACE_EXTRA_OBJECT_FILES), \ CFLAGS := $(JVM_CFLAGS), \ vm_version.cpp_CXXFLAGS := $(CFLAGS_VM_VERSION), \ arguments.cpp_CXXFLAGS := $(CFLAGS_VM_VERSION), \ DISABLED_WARNINGS_gcc := $(DISABLED_WARNINGS_gcc), \ DISABLED_WARNINGS_clang := $(DISABLED_WARNINGS_clang), \ DISABLED_WARNINGS_solstudio := $(DISABLED_WARNINGS_solstudio), \ DISABLED_WARNINGS_xlc := $(DISABLED_WARNINGS_xlc), \ DISABLED_WARNINGS_microsoft := $(DISABLED_WARNINGS_microsoft), \ ASFLAGS := $(JVM_ASFLAGS), \ LDFLAGS := $(JVM_LDFLAGS), \ LIBS := $(JVM_LIBS), \ OPTIMIZATION := $(JVM_OPTIMIZATION), \ OBJECT_DIR := $(JVM_OUTPUTDIR)/objs, \ MAPFILE := $(JVM_MAPFILE), \ USE_MAPFILE_FOR_SYMBOLS := true, \ STRIPFLAGS := $(JVM_STRIPFLAGS), \ EMBED_MANIFEST := true, \ RC_FLAGS := $(JVM_RCFLAGS), \ VERSIONINFO_RESOURCE := $(TOPDIR)/src/hotspot/os/windows/version.rc, \ PRECOMPILED_HEADER := $(JVM_PRECOMPILED_HEADER), \ PRECOMPILED_HEADER_EXCLUDE := $(JVM_PRECOMPILED_HEADER_EXCLUDE), \ )) # Always recompile vm_version.cpp if libjvm needs to be relinked. This ensures # that the internal vm version is updated as it relies on __DATE__ and __TIME__ # macros. VM_VERSION_OBJ := $(JVM_OUTPUTDIR)/objs/vm_version$(OBJ_SUFFIX) $(VM_VERSION_OBJ): $(filter-out $(VM_VERSION_OBJ) $(JVM_MAPFILE), \ $(BUILD_LIBJVM_TARGET_DEPS)) ifneq ($(GENERATE_COMPILE_COMMANDS_ONLY), true) ifeq ($(OPENJDK_TARGET_OS), windows) # It doesn't matter which jvm.lib file gets exported, but we need # to pick just one. ifeq ($(JVM_VARIANT), $(JVM_VARIANT_MAIN)) $(eval $(call SetupCopyFiles, COPY_JVM_LIB, \ DEST := $(LIB_OUTPUTDIR), \ FILES :=$(BUILD_LIBJVM_IMPORT_LIBRARY), \ )) TARGETS += $(COPY_JVM_LIB) endif endif endif # AIX warning explanation: # 1500-010 : (W) WARNING in ...: Infinite loop. Program may not stop. # There are several infinite loops in the vm, so better suppress. # 1540-0198 : (W) The omitted keyword "private" is assumed for base class "...". # 1540-0216 : (W) An expression of type .. cannot be converted to type .. # In hotspot this fires for functionpointer to pointer conversions # 1540-1088 : (W) The exception specification is being ignored. # In hotspot this is caused by throw() in declaration of new() in nmethod.hpp. # 1540-1090 : (I) The destructor of "..." might not be called. # 1540-1639 : (I) The behavior of long type bit fields has changed ... # Include mapfile generation. It relies on BUILD_LIBJVM_ALL_OBJS which is only # defined after the above call to BUILD_LIBJVM. Mapfile will be generated # after all object files are built, but before the jvm library is linked. include lib/JvmMapfile.gmk TARGETS += $(BUILD_LIBJVM) ################################################################################ # Hotspot disallows the use of global operators 'new' and 'delete'. This build # time check helps enforce this requirement. If you trigger this check and the # reference is not obvious from the source, GNU objdump can be used to help find # the reference if compiled with GCC: # # objdump -lrdSC # # -C demangle # -d disassemble # -r print relocation entries, interspersed with the disassembly # -S print source code, intermixed with disassembly # -l include filenames and line numbers # # Search the output for the operator(s) of interest, to see where they are # referenced. ifneq ($(GENERATE_COMPILE_COMMANDS_ONLY), true) ifneq ($(filter $(TOOLCHAIN_TYPE), gcc clang solstudio), ) DEMANGLED_REGEXP := [^:]operator (new|delete) # Running c++filt to find offending symbols in all files is too expensive, # especially on Solaris, so use mangled names when looking for symbols. # Save the demangling for when something is actually found. ifeq ($(TOOLCHAIN_TYPE), solstudio) MANGLED_SYMS := \ __1c2n6FL_pv_ \ __1c2N6FL_pv_ \ __1c2k6Fpv_v_ \ __1c2K6Fpv_v_ \ # UNDEF_PATTERN := UNDEF else MANGLED_SYMS := \ _ZdaPv \ _ZdlPv \ _Znam \ _Znwm \ # UNDEF_PATTERN := ' U ' endif define SetupOperatorNewDeleteCheck $1.op_check: $1 if [ -n "`$(NM) $$< | $(GREP) $(addprefix -e , $(MANGLED_SYMS)) \ | $(GREP) $(UNDEF_PATTERN)`" ]; then \ $(ECHO) "$$<: Error: Use of global operators new and delete is not allowed in Hotspot:"; \ $(NM) $$< | $(CXXFILT) | $(EGREP) '$(DEMANGLED_REGEXP)' | $(GREP) $(UNDEF_PATTERN); \ $(ECHO) "See: $(TOPDIR)/make/hotspot/lib/CompileJvm.gmk"; \ exit 1; \ fi $(TOUCH) $$@ TARGETS += $1.op_check endef $(foreach o, $(BUILD_LIBJVM_ALL_OBJS), $(eval $(call SetupOperatorNewDeleteCheck,$o))) endif endif