#
# Copyright (c) 2018, 2020, 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.
#

ifndef _JDK_NATIVE_COMPILATION_GMK
_JDK_NATIVE_COMPILATION_GMK := 1

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

include NativeCompilation.gmk

# Hook to include the corresponding custom file, if present.
$(eval $(call IncludeCustomExtension, common/JdkNativeCompilation.gmk))

FindSrcDirsForLib += \
  $(call uniq, $(wildcard \
      $(TOPDIR)/src/$(strip $1)/$(OPENJDK_TARGET_OS)/native/lib$(strip $2) \
      $(TOPDIR)/src/$(strip $1)/$(OPENJDK_TARGET_OS_TYPE)/native/lib$(strip $2) \
      $(TOPDIR)/src/$(strip $1)/share/native/lib$(strip $2)))

FindSrcDirsForComponent += \
  $(call uniq, $(wildcard \
      $(TOPDIR)/src/$(strip $1)/$(OPENJDK_TARGET_OS)/native/$(strip $2) \
      $(TOPDIR)/src/$(strip $1)/$(OPENJDK_TARGET_OS_TYPE)/native/$(strip $2) \
      $(TOPDIR)/src/$(strip $1)/share/native/$(strip $2)))

# Find a library. Used for declaring dependencies on libraries in different
# modules.
# Param 1 - module name
# Param 2 - library name
# Param 3 - optional subdir for library
FindLib = \
    $(call FindLibDirForModule, \
        $(strip $1))$(strip $3)/$(LIBRARY_PREFIX)$(strip $2)$(SHARED_LIBRARY_SUFFIX)

# Find a static library
# Param 1 - module name
# Param 2 - library name
# Param 3 - optional subdir for library
FindStaticLib = \
    $(addprefix $(SUPPORT_OUTPUTDIR)/native/, \
        $(strip $1)$(strip $3)/$(LIBRARY_PREFIX)$(strip $2)$(STATIC_LIBRARY_SUFFIX))

# If only generating compile_commands.json, make these return empty to avoid
# declaring dependencies.
ifeq ($(GENERATE_COMPILE_COMMANDS_ONLY), true)
  FindLib =
  FindStaticLib =
endif
# If building static versions of libraries, make these return empty to avoid
# declaring dependencies.
ifeq ($(STATIC_LIBS), true)
  FindLib =
  FindStaticLib =
endif

# Returns the module specific java header dir if it exists.
# Param 1 - module name
GetJavaHeaderDir = \
  $(if $(strip $1),$(wildcard $(SUPPORT_OUTPUTDIR)/headers/$(strip $1)))

# Process a dir description such as "java.base:headers" into a set of proper absolute paths.
ProcessDir = \
  $(if $(findstring :, $1), \
    $(call FindSrcDirsForComponent, $(firstword $(subst :, , $1)), $(lastword $(subst :, , $1))) \
  , \
    $(if $(filter /%, $1), \
      $1 \
    , \
      $(call FindSrcDirsForComponent, $(MODULE), $1) \
    ) \
  )

GLOBAL_VERSION_INFO_RESOURCE := $(TOPDIR)/src/java.base/windows/native/common/version.rc

JDK_RCFLAGS=$(RCFLAGS) \
    -D"JDK_VERSION_STRING=$(VERSION_STRING)" \
    -D"JDK_COMPANY=$(JDK_RC_COMPANY_NAME)" \
    -D"JDK_VER=$(VERSION_NUMBER_FOUR_POSITIONS)" \
    -D"JDK_COPYRIGHT=Copyright \xA9 $(COPYRIGHT_YEAR)" \
    -D"JDK_NAME=$(JDK_RC_NAME) $(VERSION_SHORT)" \
    -D"JDK_FVER=$(subst .,$(COMMA),$(VERSION_NUMBER_FOUR_POSITIONS))"

# Setup make rules for creating a native shared library with suitable defaults
# for the OpenJDK project.
#
# Parameter 1 is the name of the rule. This name is used as variable prefix,
# and the targets generated are listed in a variable by that name.
#
# Remaining parameters are named arguments. These are all passed on to
# SetupNativeCompilation, except for
#   EXTRA_RCFLAGS -- additional RCFLAGS to append.
#   EXTRA_HEADER_DIRS -- additional directories to look for headers in
#   EXTRA_SRC -- additional directories to look for source in
#   EXCLUDE_SRC_PATTERNS -- exclude source dirs matching these patterns from
#     appearing in SRC.
#   HEADERS_FROM_SRC -- if false, does not add source dirs automatically as
#     header include dirs. (Defaults to true.)
#   SRC -- this is passed on, but preprocessed to accept source dir designations
#   RC_FILEDESC -- override the default FILEDESC for Windows version.rc
#     such as "java.base:headers".
SetupJdkLibrary = $(NamedParamsMacroTemplate)
define SetupJdkLibraryBody
  ifeq ($$($1_OUTPUT_DIR), )
    ifneq ($$(MODULE), )
      $1_OUTPUT_DIR := $$(call FindLibDirForModule, $$(MODULE))
    else
      $$(error Must specify OUTPUT_DIR in a MODULE free context)
    endif
  endif

  ifeq ($$($1_OBJECT_DIR), )
    ifneq ($$(MODULE), )
      $1_OBJECT_DIR := $$(SUPPORT_OUTPUTDIR)/native/$$(MODULE)/lib$$($1_NAME)
    else
      $$(error Must specify OBJECT_DIR in a MODULE free context)
    endif
  endif

  ifeq ($$($1_SRC), )
    ifneq ($$(MODULE), )
      $1_SRC := $$(call FindSrcDirsForLib, $$(MODULE), $$($1_NAME))
    else
      $$(error Must specify SRC in a MODULE free context)
    endif
  else
    $1_SRC := $$(foreach dir, $$($1_SRC), $$(call ProcessDir, $$(dir)))
  endif
  ifneq ($$($1_EXTRA_SRC), )
    $1_SRC += $$(foreach dir, $$($1_EXTRA_SRC), $$(call ProcessDir, $$(dir)))
  endif

  ifneq ($$($1_EXCLUDE_SRC_PATTERNS), )
    $1_SRC_WITHOUT_WORKSPACE_ROOT := $$(patsubst $$(WORKSPACE_ROOT)/%, %, $$($1_SRC))
    $1_EXCLUDE_SRC := $$(addprefix %, $$(call containing, $$($1_EXCLUDE_SRC_PATTERNS), \
        $$($1_SRC_WITHOUT_WORKSPACE_ROOT)))
    $1_SRC := $$(filter-out $$($1_EXCLUDE_SRC), $$($1_SRC))
  endif

  ifeq ($$($1_VERSIONINFO_RESOURCE), )
    $1_VERSIONINFO_RESOURCE := $$(GLOBAL_VERSION_INFO_RESOURCE)
  endif

  ifeq ($$($1_RC_FILEDESC), )
    $1_RC_FILEDESC := $(JDK_RC_NAME) binary
  endif

  $1_RCFLAGS := $(JDK_RCFLAGS) \
      -D"JDK_FILEDESC=$$(strip $$($1_RC_FILEDESC))" \
      -D"JDK_FNAME=$$($1_NAME).dll" \
      -D"JDK_INTERNAL_NAME=$$($1_NAME)" \
      -D"JDK_FTYPE=0x2L" \
      -I$(TOPDIR)/src/java.base/windows/native/common \
      $$($1_EXTRA_RCFLAGS)

  ifneq ($$($1_HEADERS_FROM_SRC), false)
    $1_SRC_HEADER_FLAGS := $$(addprefix -I, $$(wildcard $$($1_SRC)))
  endif

  # Add the module specific java header dir
  $1_SRC_HEADER_FLAGS += $$(addprefix -I, $$(call GetJavaHeaderDir, $$(MODULE)))

  ifneq ($$($1_EXTRA_HEADER_DIRS), )
    $1_PROCESSED_EXTRA_HEADER_DIRS := $$(foreach dir, $$($1_EXTRA_HEADER_DIRS), \
        $$(call ProcessDir, $$(dir)))
    $1_EXTRA_HEADER_FLAGS := $$(addprefix -I, $$($1_PROCESSED_EXTRA_HEADER_DIRS))
  endif

  ifneq ($$($1_CFLAGS), )
    $1_CFLAGS += $$($1_SRC_HEADER_FLAGS) $$($1_EXTRA_HEADER_FLAGS)
  endif
  ifneq ($$($1_CXXFLAGS), )
    $1_CXXFLAGS += $$($1_SRC_HEADER_FLAGS) $$($1_EXTRA_HEADER_FLAGS)
  endif
  ifeq ($$($1_CFLAGS)$$($1_CXXFLAGS), )
    $1_CFLAGS += $$($1_SRC_HEADER_FLAGS) $$($1_EXTRA_HEADER_FLAGS)
  endif

  # Since we reuse the rule name ($1), all our arguments will pass through.
  # We lose in transparency, but gain in brevity in this call...
  $$(eval $$(call SetupNativeCompilation, $1, ))
endef

# Setup make rules for creating a native executable with suitable defaults for
# the OpenJDK project.
#
# Parameter 1 is the name of the rule. This name is used as variable prefix,
# and the targets generated are listed in a variable by that name.
#
# Remaining parameters are named arguments. These are all passed on to
# SetupNativeCompilation, except for
#   EXTRA_RCFLAGS -- additional RCFLAGS to append.
SetupJdkExecutable = $(NamedParamsMacroTemplate)
define SetupJdkExecutableBody
  $1_TYPE := EXECUTABLE

  ifeq ($$($1_OUTPUT_DIR), )
    ifneq ($$(MODULE), )
      $1_OUTPUT_DIR := $$(call FindExecutableDirForModule, $$(MODULE))
    else
      $$(error Must specify OUTPUT_DIR in a MODULE free context)
    endif
  endif

  ifeq ($$($1_OBJECT_DIR), )
    ifneq ($$(MODULE), )
      $1_OBJECT_DIR := $$(SUPPORT_OUTPUTDIR)/native/$$(MODULE)/$$($1_NAME)
    else
      $$(error Must specify OBJECT_DIR in a MODULE free context)
    endif
  endif

  ifeq ($$($1_VERSIONINFO_RESOURCE), )
    $1_VERSIONINFO_RESOURCE := $$(GLOBAL_VERSION_INFO_RESOURCE)
  endif

  $1_RCFLAGS := $(JDK_RCFLAGS) \
      -D"JDK_FILEDESC=$(JDK_RC_NAME) binary" \
      -D"JDK_FNAME=$$($1_NAME).exe" \
      -D"JDK_INTERNAL_NAME=$$($1_NAME)" \
      -D"JDK_FTYPE=0x1L" \
      -I$(TOPDIR)/src/java.base/windows/native/common \
      $$($1_EXTRA_RCFLAGS)

  # Since we reuse the rule name ($1), all our arguments will pass through.
  # We lose in transparency, but gain in brevity in this call...
  $$(eval $$(call SetupNativeCompilation, $1))
endef

endif # _JDK_NATIVE_COMPILATION_GMK
