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Java example source code file (NativeCompilation.gmk)

This example Java source code file (NativeCompilation.gmk) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

add_gnu_debuglink, fix_empty_sec_hdr_flags, library_prefix, log_info, macos, obj_suffix, objcopy, openjdk_target_os, openjdk_target_os_api, output_dir, program, this

The NativeCompilation.gmk Java example source code

#
# Copyright (c) 2011, 2013, 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.
#

# When you read this source. Remember that $(sort ...) has the side effect
# of removing duplicates. It is actually this side effect that is
# desired whenever sort is used below!

ifeq (,$(_MAKEBASE_GMK))
  $(error You must include MakeBase.gmk prior to including NativeCompilation.gmk)
endif

ifeq ($(COMPILER_TYPE),CC)
  COMPILING_MSG=echo $(LOG_INFO) "Compiling $(notdir $1) (for $(notdir $2))"
  LINKING_MSG=echo $(LOG_INFO) "Linking $1"
  LINKING_EXE_MSG=echo $(LOG_INFO) "Linking executable $1"
  ARCHIVING_MSG=echo $(LOG_INFO) "Archiving $1"
else
  COMPILING_MSG=
  LINKING_MSG=
  LINKING_EXE_MSG=
  ARCHIVING_MSG=
endif

define add_native_source
  # param 1 = BUILD_MYPACKAGE
  # parma 2 = the source file name (..../alfa.c or .../beta.cpp)
  # param 3 = the bin dir that stores all .o (.obj) and .d files.
  # param 4 = the c flags to the compiler
  # param 5 = the c compiler
  # param 6 = the c++ flags to the compiler
  # param 7 = the c++ compiler
  # param 8 = the flags to the assembler

  ifneq (,$$(filter %.c,$2))
    # Compile as a C file
    $1_$2_FLAGS=$4 $$($1_$(notdir $2)_CFLAGS) -DTHIS_FILE='"$$(<F)"' -c
    $1_$2_COMP=$5
    $1_$2_DEP_FLAG:=$(C_FLAG_DEPS)
  else ifneq (,$$(filter %.m,$2))
    # Compile as a objective-c file
    $1_$2_FLAGS=-x objective-c $4 $$($1_$(notdir $2)_CFLAGS) -DTHIS_FILE='"$$(<F)"' -c
    $1_$2_COMP=$5
    $1_$2_DEP_FLAG:=$(C_FLAG_DEPS)
  else ifneq (,$$(filter %.s,$2))
    # Compile as assembler file
    $1_$2_FLAGS=$8 -DTHIS_FILE='"$$(<F)"'
    $1_$2_COMP=$(AS)
    $1_$2_DEP_FLAG:=
  else
    # Compile as a C++ file
    $1_$2_FLAGS=$6 $$($1_$(notdir $2)_CXXFLAGS) -DTHIS_FILE='"$$(<F)"' -c
    $1_$2_COMP=$7
    $1_$2_DEP_FLAG:=$(CXX_FLAG_DEPS)
  endif
  # Generate the .o (.obj) file name and place it in the bin dir.
  $1_$2_OBJ:=$3/$$(patsubst %.cpp,%$(OBJ_SUFFIX),$$(patsubst %.c,%$(OBJ_SUFFIX),$$(patsubst %.m,%$(OBJ_SUFFIX),$$(patsubst %.s,%$(OBJ_SUFFIX),$$(notdir $2)))))
  # Only continue if this object file hasn't been processed already. This lets the first found
  # source file override any other with the same name.
  ifeq (,$$(findstring $$($1_$2_OBJ),$$($1_OBJS_SO_FAR)))
    $1_OBJS_SO_FAR+=$$($1_$2_OBJ)
    ifeq (,$$(filter %.s,$2))
      # And this is the dependency file for this obj file.
      $1_$2_DEP:=$$(patsubst %$(OBJ_SUFFIX),%.d,$$($1_$2_OBJ))
      # Include previously generated dependency information. (if it exists)
      -include $$($1_$2_DEP)

      ifeq ($(COMPILER_TYPE),CL)
        $1_$2_DEBUG_OUT_FLAGS:=-Fd$$(patsubst %$(OBJ_SUFFIX),%.pdb,$$($1_$2_OBJ)) \
            -Fm$$(patsubst %$(OBJ_SUFFIX),%.map,$$($1_$2_OBJ))
      endif
    endif

    $$($1_$2_OBJ) : $2
        ifeq ($(COMPILER_TYPE),CC)
	  $$(call COMPILING_MSG,$2,$$($1_TARGET))
          # The Sun studio compiler doesn't output the full path to the object file in the
          # generated deps files. Fixing it with sed. If compiling assembly, don't try this.
          ifeq ($(COMPILER_NAME)$$(filter %.s,$2),ossc)
	    $$($1_$2_COMP) $$($1_$2_FLAGS) $$($1_$2_DEP_FLAG) $$($1_$2_DEP).tmp $(CC_OUT_OPTION)$$($1_$2_OBJ) $2
	    $(SED) 's|^$$(@F):|$$@:|' $$($1_$2_DEP).tmp > $$($1_$2_DEP)
          else
	    $$($1_$2_COMP) $$($1_$2_FLAGS) $$($1_$2_DEP_FLAG) $$($1_$2_DEP) $(CC_OUT_OPTION)$$($1_$2_OBJ) $2
          endif
        endif
        # The Visual Studio compiler lacks a feature for generating make dependencies, but by
        # setting -showIncludes, all included files are printed. These are filtered out and
        # parsed into make dependences.
        ifeq ($(COMPILER_TYPE),CL)
	  ($$($1_$2_COMP) $$($1_$2_FLAGS) -showIncludes $$($1_$2_DEBUG_OUT_FLAGS) \
	      $(CC_OUT_OPTION)$$($1_$2_OBJ) $2 ; echo $$$$? > $$($1_$2_DEP).exitvalue) \
	      | $(TEE) $$($1_$2_DEP).raw | $(GREP) -v "^Note: including file:" \
	      && exit `cat $$($1_$2_DEP).exitvalue`
	  $(RM) $$($1_$2_DEP).exitvalue
	  ($(ECHO) $$@: \\ \
	  && $(SED) -e '/^Note: including file:/!d' \
	      -e 's|Note: including file: *||' \
	      -e 's|\\|/|g' \
	      -e 's|^\([a-zA-Z]\):|/cygdrive/\1|g' \
	      -e '/$(subst /,\/,$(TOPDIR))/!d' \
	      -e 's|$$$$| \\|g' \
	      $$($1_$2_DEP).raw) > $$($1_$2_DEP)
        endif
  endif
endef

define SetupNativeCompilation
  # param 1 is for example BUILD_MYPACKAGE
  # param 2,3,4,5,6,7,8 are named args.
  #   SRC one or more directory roots to scan for C/C++ files.
  #   LANG C or C++
  #   CFLAGS the compiler flags to be used, used both for C and C++.
  #   CXXFLAGS the compiler flags to be used for c++, if set overrides CFLAGS.
  #   LDFLAGS the linker flags to be used, used both for C and C++.
  #   LDFLAGS_SUFFIX the linker flags to be added last on the commandline
  #       typically the libraries linked to.
  #   ARFLAGS the archiver flags to be used
  #   OBJECT_DIR the directory where we store the object files
  #   LIBRARY the resulting library file
  #   PROGRAM the resulting exec file
  #   INCLUDES only pick source from these directories
  #   EXCLUDES do not pick source from these directories
  #   INCLUDE_FILES only compile exactly these files!
  #   EXCLUDE_FILES with these names
  #   VERSIONINFO_RESOURCE Input file for RC. Setting this implies that RC will be run
  #   RC_FLAGS flags for RC.
  #   MAPFILE mapfile
  #   REORDER reorder file
  #   DEBUG_SYMBOLS add debug symbols (if configured on)
  #   CC the compiler to use, default is $(CC)
  #   LDEXE the linker to use for linking executables, default is $(LDEXE)
  #   OPTIMIZATION sets optimization level to NONE, LOW, HIGH, HIGHEST
  $(foreach i,2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26, $(if $($i),$1_$(strip $($i)))$(NEWLINE))
  $(call LogSetupMacroEntry,SetupNativeCompilation($1),$2,$3,$4,$5,$6,$7,$8,$9,$(10),$(11),$(12),$(13),$(14),$(15),$(16),$(17),$(18),$(19),$(20),$(21),$(22),$(23),$(24),$(25),$(26))
  $(if $(27),$(error Internal makefile error: Too many arguments to SetupNativeCompilation, please update NativeCompilation.gmk))

  ifneq (,$$($1_BIN))
    $$(error BIN has been replaced with OBJECT_DIR)
  endif

  ifneq (,$$($1_LIB))
    $$(error LIB has been replaced with LIBRARY)
  endif

  ifneq (,$$($1_EXE))
    $$(error EXE has been replaced with PROGRAM)
  endif

  ifneq (,$$($1_LIBRARY))
    ifeq (,$$($1_OUTPUT_DIR))
      $$(error LIBRARY requires OUTPUT_DIR)
    endif

    ifneq ($$($1_LIBRARY),$(basename $$($1_LIBRARY)))
      $$(error directory of LIBRARY should be specified using OUTPUT_DIR)
    endif

    ifneq (,$(findstring $(SHARED_LIBRARY_SUFFIX),$$($1_LIBRARY)))
      $$(error LIBRARY should be specified without SHARED_LIBRARY_SUFFIX: $(SHARED_LIBRARY_SUFFIX))
    endif

    ifneq (,$(findstring $(LIBRARY_PREFIX),$$($1_LIBRARY)))
      $$(error LIBRARY should be specified without LIBRARY_PREFIX: $(LIBRARY_PREFIX))
    endif

    $1_BASENAME:=$(LIBRARY_PREFIX)$$($1_LIBRARY)$(SHARED_LIBRARY_SUFFIX)
    $1_TARGET:=$$($1_OUTPUT_DIR)/$$($1_BASENAME)

  endif

  ifneq (,$$($1_STATIC_LIBRARY))
    ifeq (,$$($1_OUTPUT_DIR))
      $$(error STATIC_LIBRARY requires OUTPUT_DIR)
    endif

    ifneq ($$($1_STATIC_LIBRARY),$(basename $$($1_STATIC_LIBRARY)))
      $$(error directory of STATIC_LIBRARY should be specified using OUTPUT_DIR)
    endif

    ifneq (,$(findstring $(STATIC_LIBRARY_SUFFIX),$$($1_STATIC_LIBRARY)))
      $$(error STATIC_LIBRARY should be specified without STATIC_LIBRARY_SUFFIX: $(STATIC_LIBRARY_SUFFIX))
    endif

    ifneq (,$(findstring $(LIBRARY_PREFIX),$$($1_STATIC_LIBRARY)))
      $$(error STATIC_LIBRARY should be specified without LIBRARY_PREFIX: $(LIBRARY_PREFIX))
    endif

    $1_BASENAME:=$(LIBRARY_PREFIX)$$($1_STATIC_LIBRARY)$(STATIC_LIBRARY_SUFFIX)
    $1_TARGET:=$$($1_OUTPUT_DIR)/$$($1_BASENAME)
  endif

  ifneq (,$$($1_PROGRAM))
    ifeq (,$$($1_OUTPUT_DIR))
      $$(error PROGRAM requires OUTPUT_DIR)
    endif

    ifneq ($$($1_PROGRAM),$(basename $$($1_PROGRAM)))
      $$(error directory of PROGRAM should be specified using OUTPUT_DIR)
    endif

    ifneq (,$(findstring $(EXE_SUFFIX),$$($1_PROGRAM)))
      $$(error PROGRAM should be specified without EXE_SUFFIX: $(EXE_SUFFIX))
    endif

    $1_BASENAME:=$$($1_PROGRAM)$(EXE_SUFFIX)
    $1_TARGET:=$$($1_OUTPUT_DIR)/$$($1_BASENAME)

  endif

  ifeq (,$$($1_TARGET))
    $$(error Neither PROGRAM, LIBRARY nor STATIC_LIBRARY has been specified for SetupNativeCompilation)
  endif

  ifeq (,$$($1_LANG))
    $$(error You have to specify LANG for native compilation $1)
  endif
  ifeq (C,$$($1_LANG))
    ifeq ($$($1_LDEXE),)
      $1_LDEXE:=$(LDEXE)
    endif
    $1_LD:=$(LD)
  else
    ifeq (C++,$$($1_LANG))
      $1_LD:=$(LDCXX)
      $1_LDEXE:=$(LDEXECXX)
    else
      $$(error Unknown native language $$($1_LANG) for $1)
    endif
  endif

  ifeq ($$($1_CC),)
    $1_CC:=$(CC)
  endif

  # Make sure the dirs exist.
  $$(eval $$(call MakeDir,$$($1_OBJECT_DIR) $$($1_OUTPUT_DIR)))
  $$(foreach d,$$($1_SRC), $$(if $$(wildcard $$d),,$$(error SRC specified to SetupNativeCompilation $1 contains missing directory $$d)))

  # Find all files in the source trees. Sort to remove duplicates.
  $1_ALL_SRCS := $$(sort $$(call CacheFind,$$($1_SRC)))
  # Extract the C/C++ files.
  $1_EXCLUDE_FILES:=$$(foreach i,$$($1_SRC),$$(addprefix $$i/,$$($1_EXCLUDE_FILES)))
  $1_INCLUDE_FILES:=$$(foreach i,$$($1_SRC),$$(addprefix $$i/,$$($1_INCLUDE_FILES)))
  ifneq ($$($1_EXCLUDE_FILES),)
    $1_EXCLUDE_FILES:=$$(addprefix %,$$($1_EXCLUDE_FILES))
  endif
  $1_SRCS := $$(filter-out $$($1_EXCLUDE_FILES),$$(filter %.s %.c %.cpp %.m,$$($1_ALL_SRCS)))
  ifneq (,$$(strip $$($1_INCLUDE_FILES)))
    $1_SRCS := $$(filter $$($1_INCLUDE_FILES),$$($1_SRCS))
  endif
  ifeq (,$$($1_SRCS))
    $$(error No sources found for $1 when looking inside the dirs $$($1_SRC))
  endif
  # There can be only a single bin dir root, no need to foreach over the roots.
  $1_BINS := $$(wildcard $$($1_OBJECT_DIR)/*$(OBJ_SUFFIX))
  # Now we have a list of all c/c++ files to compile: $$($1_SRCS)
  # and we have a list of all existing object files: $$($1_BINS)

  # Prepend the source/bin path to the filter expressions. Then do the filtering.
  ifneq ($$($1_INCLUDES),)
    $1_SRC_INCLUDES := $$(foreach i,$$($1_SRC),$$(addprefix $$i/,$$(addsuffix /%,$$($1_INCLUDES))))
    $1_SRCS := $$(filter $$($1_SRC_INCLUDES),$$($1_SRCS))
  endif
  ifneq ($$($1_EXCLUDES),)
    $1_SRC_EXCLUDES := $$(foreach i,$$($1_SRC),$$(addprefix $$i/,$$(addsuffix /%,$$($1_EXCLUDES))))
    $1_SRCS := $$(filter-out $$($1_SRC_EXCLUDES),$$($1_SRCS))
  endif

  # Calculate the expected output from compiling the sources (sort to remove duplicates. Also provides
  # a reproducable order on the input files to the linker).
  $1_EXPECTED_OBJS:=$$(sort $$(addprefix $$($1_OBJECT_DIR)/,$$(patsubst %.cpp,%$(OBJ_SUFFIX),$$(patsubst %.c,%$(OBJ_SUFFIX),$$(patsubst %.m,%$(OBJ_SUFFIX),$$(patsubst %.s,%$(OBJ_SUFFIX),$$(notdir $$($1_SRCS))))))))
  # Are there too many object files on disk? Perhaps because some source file was removed?
  $1_SUPERFLOUS_OBJS:=$$(sort $$(filter-out $$($1_EXPECTED_OBJS),$$($1_BINS)))
  # Clean out the superfluous object files.
  ifneq ($$($1_SUPERFLUOUS_OBJS),)
    $$(shell $(RM) -f $$($1_SUPERFLUOUS_OBJS))
  endif

  # Pickup extra OPENJDK_TARGET_OS_API and/or OPENJDK_TARGET_OS dependent variables for CFLAGS.
  $1_EXTRA_CFLAGS:=$$($1_CFLAGS_$(OPENJDK_TARGET_OS_API)) $$($1_CFLAGS_$(OPENJDK_TARGET_OS))
  ifneq ($(DEBUG_LEVEL),release)
    # Pickup extra debug dependent variables for CFLAGS
    $1_EXTRA_CFLAGS+=$$($1_CFLAGS_debug)
    $1_EXTRA_CFLAGS+=$$($1_CFLAGS_$(OPENJDK_TARGET_OS_API)_debug)
    $1_EXTRA_CFLAGS+=$$($1_CFLAGS_$(OPENJDK_TARGET_OS)_debug)
  else
    $1_EXTRA_CFLAGS+=$$($1_CFLAGS_release)
    $1_EXTRA_CFLAGS+=$$($1_CFLAGS_$(OPENJDK_TARGET_OS_API)_release)
    $1_EXTRA_CFLAGS+=$$($1_CFLAGS_$(OPENJDK_TARGET_OS)_release)
  endif

  # Pickup extra OPENJDK_TARGET_OS_API and/or OPENJDK_TARGET_OS dependent variables for CXXFLAGS.
  $1_EXTRA_CXXFLAGS:=$$($1_CXXFLAGS_$(OPENJDK_TARGET_OS_API)) $$($1_CXXFLAGS_$(OPENJDK_TARGET_OS))
  ifneq ($(DEBUG_LEVEL),release)
    # Pickup extra debug dependent variables for CXXFLAGS
    $1_EXTRA_CXXFLAGS+=$$($1_CXXFLAGS_debug)
    $1_EXTRA_CXXFLAGS+=$$($1_CXXFLAGS_$(OPENJDK_TARGET_OS_API)_debug)
    $1_EXTRA_CXXFLAGS+=$$($1_CXXFLAGS_$(OPENJDK_TARGET_OS)_debug)
  else
    $1_EXTRA_CXXFLAGS+=$$($1_CXXFLAGS_release)
    $1_EXTRA_CXXFLAGS+=$$($1_CXXFLAGS_$(OPENJDK_TARGET_OS_API)_release)
    $1_EXTRA_CXXFLAGS+=$$($1_CXXFLAGS_$(OPENJDK_TARGET_OS)_release)
  endif

  ifneq (,$$($1_DEBUG_SYMBOLS))
    ifeq ($(ENABLE_DEBUG_SYMBOLS), true)
      ifdef OPENJDK
        # Always add debug symbols
        $1_EXTRA_CFLAGS+=$(CFLAGS_DEBUG_SYMBOLS)
        $1_EXTRA_CXXFLAGS+=$(CXXFLAGS_DEBUG_SYMBOLS)
      else
        # Programs don't get the debug symbols added in the old build. It's not clear if
        # this is intentional.
        ifeq ($$($1_PROGRAM),)
          $1_EXTRA_CFLAGS+=$(CFLAGS_DEBUG_SYMBOLS)
          $1_EXTRA_CXXFLAGS+=$(CXXFLAGS_DEBUG_SYMBOLS)
        endif
      endif
    endif
  endif

  ifeq ($$($1_CXXFLAGS),)
    $1_CXXFLAGS:=$$($1_CFLAGS)
  endif
  ifeq ($$(strip $$($1_EXTRA_CXXFLAGS)),)
    $1_EXTRA_CXXFLAGS:=$$($1_EXTRA_CFLAGS)
  endif

  ifneq (,$$($1_REORDER))
    $1_EXTRA_CFLAGS += $$(C_FLAG_REORDER)
    $1_EXTRA_CXXFLAGS += $$(CXX_FLAG_REORDER)
  endif

  ifeq (NONE, $$($1_OPTIMIZATION))
    $1_EXTRA_CFLAGS += $(C_O_FLAG_NONE)
    $1_EXTRA_CXXFLAGS += $(CXX_O_FLAG_NONE)
  else ifeq (LOW, $$($1_OPTIMIZATION))
    $1_EXTRA_CFLAGS += $(C_O_FLAG_NORM)
    $1_EXTRA_CXXFLAGS += $(CXX_O_FLAG_NORM)
  else ifeq (HIGH, $$($1_OPTIMIZATION))
    $1_EXTRA_CFLAGS += $(C_O_FLAG_HI)
    $1_EXTRA_CXXFLAGS += $(CXX_O_FLAG_HI)
  else ifeq (HIGHEST, $$($1_OPTIMIZATION))
    $1_EXTRA_CFLAGS += $(C_O_FLAG_HIGHEST)
    $1_EXTRA_CXXFLAGS += $(CXX_O_FLAG_HIGHEST)
  else ifneq (, $$($1_OPTIMIZATION))
    $$(error Unknown value for OPTIMIZATION: $$($1_OPTIMIZATION))
  endif

  # Now call add_native_source for each source file we are going to compile.
  $$(foreach p,$$($1_SRCS), \
      $$(eval $$(call add_native_source,$1,$$p,$$($1_OBJECT_DIR), \
          $$($1_CFLAGS) $$($1_EXTRA_CFLAGS),$$($1_CC), \
          $$($1_CXXFLAGS) $$($1_EXTRA_CXXFLAGS),$(CXX),$$($1_ASFLAGS))))

  # On windows we need to create a resource file
  ifeq ($(OPENJDK_TARGET_OS), windows)
    ifneq (,$$($1_VERSIONINFO_RESOURCE))
      $1_RES:=$$($1_OBJECT_DIR)/$$($1_BASENAME).res
      $$($1_RES): $$($1_VERSIONINFO_RESOURCE)
		$(RC) $$($1_RC_FLAGS) $(CC_OUT_OPTION)$$@ $$($1_VERSIONINFO_RESOURCE)
    endif
    ifneq (,$$($1_MANIFEST))
      $1_GEN_MANIFEST:=$$($1_OBJECT_DIR)/$$($1_PROGRAM).manifest
      IMVERSIONVALUE:=$(JDK_MINOR_VERSION).$(JDK_MICRO_VERSION).$(JDK_UPDATE_VERSION).$(COOKED_BUILD_NUMBER)
      $$($1_GEN_MANIFEST): $$($1_MANIFEST)
		$(SED) 's%IMVERSION%$$(IMVERSIONVALUE)%g;s%PROGRAM%$$($1_PROGRAM)%g' $$< > $$@
    endif
  endif

  # mapfile doesnt seem to be implemented on macosx (yet??)
  ifneq ($(OPENJDK_TARGET_OS),macosx)
    ifneq ($(OPENJDK_TARGET_OS),windows)
      $1_REAL_MAPFILE:=$$($1_MAPFILE)
      ifneq (,$$($1_REORDER))
        $1_REAL_MAPFILE:=$$($1_OBJECT_DIR)/mapfile

        $$($1_REAL_MAPFILE) : $$($1_MAPFILE) $$($1_REORDER)
		$$(MKDIR) -p $$(@D)
		$$(CP) $$($1_MAPFILE) $$@.tmp
		$$(SED) -e 's=OUTPUTDIR=$$($1_OBJECT_DIR)=' $$($1_REORDER) >> $$@.tmp
		$$(MV) $$@.tmp $$@
      endif
    endif
  endif

  # Pickup extra OPENJDK_TARGET_OS_API and/or OPENJDK_TARGET_OS dependent variables
  # for LDFLAGS and LDFLAGS_SUFFIX
  $1_EXTRA_LDFLAGS:=$$($1_LDFLAGS_$(OPENJDK_TARGET_OS_API)) $$($1_LDFLAGS_$(OPENJDK_TARGET_OS))
  $1_EXTRA_LDFLAGS_SUFFIX:=$$($1_LDFLAGS_SUFFIX_$(OPENJDK_TARGET_OS_API)) $$($1_LDFLAGS_SUFFIX_$(OPENJDK_TARGET_OS))
  ifneq (,$$($1_REAL_MAPFILE))
    $1_EXTRA_LDFLAGS += $(call SET_SHARED_LIBRARY_MAPFILE,$$($1_REAL_MAPFILE))
  endif

  $1 := $$($1_TARGET)
  ifneq (,$$($1_LIBRARY))
    # Generating a dynamic library.
    $1_EXTRA_LDFLAGS+=$$(call SET_SHARED_LIBRARY_NAME,$$($1_BASENAME))
    ifeq ($(OPENJDK_TARGET_OS), windows)
      $1_EXTRA_LDFLAGS+="-implib:$$($1_OBJECT_DIR)/$$($1_LIBRARY).lib"
    endif

    $1_EXTRA_LDFLAGS_SUFFIX += $(GLOBAL_LDFLAGS_SUFFIX)

    ifneq (,$$($1_DEBUG_SYMBOLS))
      ifeq ($(ENABLE_DEBUG_SYMBOLS), true)
        ifeq ($(OPENJDK_TARGET_OS), windows)
          $1_EXTRA_LDFLAGS+="-pdb:$$($1_OBJECT_DIR)/$$($1_LIBRARY).pdb" \
              "-map:$$($1_OBJECT_DIR)/$$($1_LIBRARY).map"
        endif

        ifneq ($$($1_OUTPUT_DIR),$$($1_OBJECT_DIR))
          $$($1_OUTPUT_DIR)/% : $$($1_OBJECT_DIR)/%
		$(CP) $$< $$@
        endif

        ifneq ($(OPENJDK_TARGET_OS), macosx)   # OBJCOPY is not used on MacOS X
          ifneq ($(OPENJDK_TARGET_OS), windows)  # nor on Windows
            ifeq ($(OPENJDK_TARGET_OS), solaris)
              # gobjcopy crashes on "empty" section headers with the SHF_ALLOC flag set.
              # Use $(FIX_EMPTY_SEC_HDR_FLAGS) to clear the SHF_ALLOC flag (if set) from
              # empty section headers until a fixed $(OBJCOPY) is available.
              # An empty section header has sh_addr == 0 and sh_size == 0.
              # This problem has only been seen on Solaris X64, but we call this tool
              # on all Solaris builds just in case.
              #
              # $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
              # Use $(ADD_GNU_DEBUGLINK) until a fixed $(OBJCOPY) is available.
              $$($1_OBJECT_DIR)/$$(LIBRARY_PREFIX)$$($1_LIBRARY).debuginfo : $$($1_TARGET) \
				$(FIX_EMPTY_SEC_HDR_FLAGS) $(ADD_GNU_DEBUGLINK)
		$(RM) $$@
		$(FIX_EMPTY_SEC_HDR_FLAGS) $(LOG_INFO) $$<
		$(OBJCOPY) --only-keep-debug $$< $$@
		$(CD) $$(@D) && $(ADD_GNU_DEBUGLINK) $(LOG_INFO) $$(@F) $$<
            else # not solaris
              $$($1_OBJECT_DIR)/$$(LIBRARY_PREFIX)$$($1_LIBRARY).debuginfo : $$($1_TARGET)
		$(RM) $$@
		$(OBJCOPY) --only-keep-debug $$< $$@
		$(CD) $$(@D) && $(OBJCOPY) --add-gnu-debuglink=$$(@F) $$<
            endif # Touch to not retrigger rule on rebuild
		$(TOUCH) $$@
          endif # !windows
        endif # !macosx

        ifeq ($(ZIP_DEBUGINFO_FILES), true)
ifneq ($(OPENJDK_TARGET_OS), macosx) # no MacOS X support yet
          $1 += $$($1_OUTPUT_DIR)/$$(LIBRARY_PREFIX)$$($1_LIBRARY).diz

          ifeq ($(OPENJDK_TARGET_OS), windows)
            $$($1_OBJECT_DIR)/$$(LIBRARY_PREFIX)$$($1_LIBRARY).diz : $$($1_TARGET)
		$(CD) $$($1_OBJECT_DIR) \
		&& $(ZIP) -q $$@ $$($1_LIBRARY).map $$($1_LIBRARY).pdb
          else
            $$($1_OBJECT_DIR)/$$(LIBRARY_PREFIX)$$($1_LIBRARY).diz : $$($1_TARGET) \
                $$($1_OBJECT_DIR)/$$(LIBRARY_PREFIX)$$($1_LIBRARY).debuginfo
		$(CD) $$($1_OBJECT_DIR) \
		&& $(ZIP) -q $$@ $$(LIBRARY_PREFIX)$$($1_LIBRARY).debuginfo
          endif
endif # no MacOS X support yet
        else
          ifeq ($(OPENJDK_TARGET_OS), windows)
            $1 += $$($1_OUTPUT_DIR)/$$($1_LIBRARY).map \
                $$($1_OUTPUT_DIR)/$$($1_LIBRARY).pdb
          else ifneq ($(OPENJDK_TARGET_OS), macosx) # MacOS X does not use .debuginfo files
            $1 += $$($1_OUTPUT_DIR)/$$(LIBRARY_PREFIX)$$($1_LIBRARY).debuginfo
          endif
        endif
      endif
    endif

    $$($1_TARGET) : $$($1_EXPECTED_OBJS) $$($1_RES) $$($1_REAL_MAPFILE)
	$$(call LINKING_MSG,$$($1_BASENAME))
	$$($1_LD) $$($1_LDFLAGS) $$($1_EXTRA_LDFLAGS) $(LD_OUT_OPTION)$$@ \
	$$($1_EXPECTED_OBJS) $$($1_RES) $$($1_LDFLAGS_SUFFIX) \
	$$($1_EXTRA_LDFLAGS_SUFFIX)

  endif

  ifneq (,$$($1_STATIC_LIBRARY))
    # Generating a static library, ie object file archive.
    $$($1_TARGET) : $$($1_EXPECTED_OBJS) $$($1_RES)
	$$(call ARCHIVING_MSG,$$($1_LIBRARY))
	$(AR) $$($1_AR_FLAGS) $(AR_OUT_OPTION)$$($1_TARGET) $$($1_EXPECTED_OBJS) \
	    $$($1_RES) $$($1_LDFLAGS_SUFFIX) $$($1_EXTRA_LDFLAGS_SUFFIX)
  endif

  ifneq (,$$($1_PROGRAM))
    # A executable binary has been specified, setup the target for it.
    ifneq (,$$($1_DEBUG_SYMBOLS))
      ifeq ($(ENABLE_DEBUG_SYMBOLS), true)
        ifeq ($(OPENJDK_TARGET_OS), windows)
          $1_EXTRA_LDFLAGS+="-pdb:$$($1_OBJECT_DIR)/$$($1_PROGRAM).pdb" \
              "-map:$$($1_OBJECT_DIR)/$$($1_PROGRAM).map"
        endif

        ifneq ($$($1_OUTPUT_DIR),$$($1_OBJECT_DIR))
          $$($1_OUTPUT_DIR)/% : $$($1_OBJECT_DIR)/%
		$(CP) $$< $$@
        endif

        ifneq ($(OPENJDK_TARGET_OS), macosx)   # OBJCOPY is not used on MacOS X
          ifneq ($(OPENJDK_TARGET_OS), windows)  # nor on Windows
            ifeq ($(OPENJDK_TARGET_OS), solaris)
              # gobjcopy crashes on "empty" section headers with the SHF_ALLOC flag set.
              # Use $(FIX_EMPTY_SEC_HDR_FLAGS) to clear the SHF_ALLOC flag (if set) from
              # empty section headers until a fixed $(OBJCOPY) is available.
              # An empty section header has sh_addr == 0 and sh_size == 0.
              # This problem has only been seen on Solaris X64, but we call this tool
              # on all Solaris builds just in case.
              #
              # $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
              # Use $(ADD_GNU_DEBUGLINK) until a fixed $(OBJCOPY) is available.
              $$($1_OBJECT_DIR)/$$($1_PROGRAM).debuginfo : $$($1_TARGET) \
				$(FIX_EMPTY_SEC_HDR_FLAGS) $(ADD_GNU_DEBUGLINK)
		$(RM) $$@
		$(FIX_EMPTY_SEC_HDR_FLAGS) $(LOG_INFO) $$<
		$(OBJCOPY) --only-keep-debug $$< $$@
		$(CD) $$(@D) && $(ADD_GNU_DEBUGLINK) $(LOG_INFO) $$(@F) $$<
            else # not solaris
              $$($1_OBJECT_DIR)/$$($1_PROGRAM).debuginfo : $$($1_TARGET)
		$(RM) $$@
		$(OBJCOPY) --only-keep-debug $$< $$@
		$(CD) $$(@D) && $(OBJCOPY) --add-gnu-debuglink=$$(@F) $$<
            endif
		$(TOUCH) $$@
          endif # !windows
        endif # !macosx

        ifeq ($(ZIP_DEBUGINFO_FILES), true)
ifneq ($(OPENJDK_TARGET_OS), macosx) # no MacOS X support yet
          $1 += $$($1_OUTPUT_DIR)/$$($1_PROGRAM).diz

          ifeq ($(OPENJDK_TARGET_OS), windows)
            $$($1_OBJECT_DIR)/$$($1_PROGRAM).diz : $$($1_TARGET)
		$(CD) $$($1_OBJECT_DIR) \
		&& $(ZIP) -q $$@ $$($1_PROGRAM).map $$($1_PROGRAM).pdb
          else
            $$($1_OBJECT_DIR)/$$(PROGRAM_PREFIX)$$($1_PROGRAM).diz : $$($1_TARGET) \
                $$($1_OBJECT_DIR)/$$($1_PROGRAM).debuginfo
		$(CD) $$($1_OBJECT_DIR) \
		&& $(ZIP) -q $$@ $$($1_PROGRAM).debuginfo
          endif
endif # no MacOS X support yet
        else
          ifeq ($(OPENJDK_TARGET_OS), windows)
            $1 += $$($1_OUTPUT_DIR)/$$($1_PROGRAM).map \
                $$($1_OUTPUT_DIR)/$$($1_PROGRAM).pdb
          else ifneq ($(OPENJDK_TARGET_OS), macosx) # MacOS X does not use .debuginfo files
            $1 += $$($1_OUTPUT_DIR)/$$($1_PROGRAM).debuginfo
          endif
        endif
      endif
    endif

    $1_EXTRA_LDFLAGS_SUFFIX += $(GLOBAL_LDFLAGS_SUFFIX)

    $$($1_TARGET) : $$($1_EXPECTED_OBJS) $$($1_RES) $$($1_GEN_MANIFEST)
	$$(call LINKING_EXE_MSG,$$($1_BASENAME))
	$$($1_LDEXE) $$($1_LDFLAGS) $$($1_EXTRA_LDFLAGS) $(EXE_OUT_OPTION)$$($1_TARGET) \
	$$($1_EXPECTED_OBJS) $$($1_RES) $$($1_LDFLAGS_SUFFIX) \
	$$($1_EXTRA_LDFLAGS_SUFFIX)
        ifneq (,$$($1_GEN_MANIFEST))
	  $(MT) -nologo -manifest $$($1_GEN_MANIFEST) -outputresource:$$@;#1
        endif
        # This only works if the openjdk_codesign identity is present on the system. Let
        # silently fail otherwise.
        ifneq (,$(CODESIGN))
          ifneq (,$$($1_CODESIGN))
	    $(CODESIGN) -s openjdk_codesign $$@
          endif
        endif
  endif
endef

Other Java examples (source code examples)

Here is a short list of links related to this Java NativeCompilation.gmk source code file:

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