Makefile文件
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1845行
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69.9 KB
# Copyright (C) 2009 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Common definitions for the Android NDK build system
#
# We use the GNU Make Standard Library
include $(NDK_ROOT)/build/gmsl/gmsl
# If NDK_TRACE is enabled then calls to the library functions are
# traced to stdout using warning messages with their arguments
ifdef NDK_TRACE
__ndk_tr1 = $(warning $0('$1'))
__ndk_tr2 = $(warning $0('$1','$2'))
__ndk_tr3 = $(warning $0('$1','$2','$3'))
else
__ndk_tr1 :=
__ndk_tr2 :=
__ndk_tr3 :=
endif
# -----------------------------------------------------------------------------
# Macro : empty
# Returns : an empty macro
# Usage : $(empty)
# -----------------------------------------------------------------------------
empty :=
# -----------------------------------------------------------------------------
# Macro : space
# Returns : a single space
# Usage : $(space)
# -----------------------------------------------------------------------------
space := $(empty) $(empty)
space4 := $(space)$(space)$(space)$(space)
# -----------------------------------------------------------------------------
# Function : last2
# Arguments: a list
# Returns : the penultimate (next-to-last) element of a list
# Usage : $(call last2, <LIST>)
# -----------------------------------------------------------------------------
last2 = $(word $(words $1), x $1)
# -----------------------------------------------------------------------------
# Function : last3
# Arguments: a list
# Returns : the antepenultimate (second-next-to-last) element of a list
# Usage : $(call last3, <LIST>)
# -----------------------------------------------------------------------------
last3 = $(word $(words $1), x x $1)
# -----------------------------------------------------------------------------
# Function : remove-duplicates
# Arguments: a list
# Returns : the list with duplicate items removed, order is preserved.
# Usage : $(call remove-duplicates, <LIST>)
# Note : This is equivalent to the 'uniq' function provided by GMSL,
# however this implementation is non-recursive and *much*
# faster. It will also not explode the stack with a lot of
# items like 'uniq' does.
# -----------------------------------------------------------------------------
remove-duplicates = $(strip \
$(eval __uniq_ret :=) \
$(foreach __uniq_item,$1,\
$(if $(findstring $(__uniq_item),$(__uniq_ret)),,\
$(eval __uniq_ret += $(__uniq_item))\
)\
)\
$(__uniq_ret))
# -----------------------------------------------------------------------------
# Macro : this-makefile
# Returns : the name of the current Makefile in the inclusion stack
# Usage : $(this-makefile)
# -----------------------------------------------------------------------------
this-makefile = $(lastword $(MAKEFILE_LIST))
# -----------------------------------------------------------------------------
# Macro : local-makefile
# Returns : the name of the last parsed Android.mk file
# Usage : $(local-makefile)
# -----------------------------------------------------------------------------
local-makefile = $(lastword $(filter %Android.mk,$(MAKEFILE_LIST)))
# -----------------------------------------------------------------------------
# Function : assert-defined
# Arguments: 1: list of variable names
# Returns : None
# Usage : $(call assert-defined, VAR1 VAR2 VAR3...)
# Rationale: Checks that all variables listed in $1 are defined, or abort the
# build
# -----------------------------------------------------------------------------
assert-defined = $(foreach __varname,$(strip $1),\
$(if $(strip $($(__varname))),,\
$(call __ndk_error, Assertion failure: $(__varname) is not defined)\
)\
)
# -----------------------------------------------------------------------------
# Function : clear-vars
# Arguments: 1: list of variable names
# 2: file where the variable should be defined
# Returns : None
# Usage : $(call clear-vars, VAR1 VAR2 VAR3...)
# Rationale: Clears/undefines all variables in argument list
# -----------------------------------------------------------------------------
clear-vars = $(foreach __varname,$1,$(eval $(__varname) := $(empty)))
# -----------------------------------------------------------------------------
# Function : check-required-vars
# Arguments: 1: list of variable names
# 2: file where the variable(s) should be defined
# Returns : None
# Usage : $(call check-required-vars, VAR1 VAR2 VAR3..., <file>)
# Rationale: Checks that all required vars listed in $1 were defined by $2
# or abort the build with an error
# -----------------------------------------------------------------------------
check-required-vars = $(foreach __varname,$1,\
$(if $(strip $($(__varname))),,\
$(call __ndk_info, Required variable $(__varname) is not defined by $2)\
$(call __ndk_error,Aborting)\
)\
)
# -----------------------------------------------------------------------------
# Function : host-path
# Arguments: 1: file path
# Returns : file path, as understood by the host file system
# Usage : $(call host-path,<path>)
# Rationale: This function is used to translate Cygwin paths into
# Cygwin-specific ones. On other platforms, it will just
# return its argument.
# -----------------------------------------------------------------------------
ifeq ($(HOST_OS),cygwin)
host-path = $(if $(strip $1),$(call cygwin-to-host-path,$1))
else
host-path = $1
endif
# -----------------------------------------------------------------------------
# Function : host-rm
# Arguments: 1: list of files
# Usage : $(call host-rm,<files>)
# Rationale: This function expands to the host-specific shell command used
# to remove some files.
# -----------------------------------------------------------------------------
ifeq ($(HOST_OS),windows)
host-rm = \
$(eval __host_rm_files := $(foreach __host_rm_file,$1,$(subst /,\,$(wildcard $(__host_rm_file)))))\
$(if $(__host_rm_files),del /f/q $(__host_rm_files) >NUL 2>NUL)
else
host-rm = rm -f $1
endif
# -----------------------------------------------------------------------------
# Function : host-rmdir
# Arguments: 1: list of files or directories
# Usage : $(call host-rm,<files>)
# Rationale: This function expands to the host-specific shell command used
# to remove some files _and_ directories.
# -----------------------------------------------------------------------------
ifeq ($(HOST_OS),windows)
host-rmdir = \
$(eval __host_rmdir_files := $(foreach __host_rmdir_file,$1,$(subst /,\,$(wildcard $(__host_rmdir_file)))))\
$(if $(__host_rmdir_files),del /f/s/q $(__host_rmdir_files) >NUL 2>NUL)
else
host-rmdir = rm -rf $1
endif
# -----------------------------------------------------------------------------
# Function : host-mkdir
# Arguments: 1: directory path
# Usage : $(call host-mkdir,<path>
# Rationale: This function expands to the host-specific shell command used
# to create a path if it doesn't exist.
# -----------------------------------------------------------------------------
ifeq ($(HOST_OS),windows)
host-mkdir = md $(subst /,\,"$1") >NUL 2>NUL || rem
else
host-mkdir = mkdir -p $1
endif
# -----------------------------------------------------------------------------
# Function : host-cp
# Arguments: 1: source file
# 2: target file
# Usage : $(call host-cp,<src-file>,<dst-file>)
# Rationale: This function expands to the host-specific shell command used
# to copy a single file
# -----------------------------------------------------------------------------
ifeq ($(HOST_OS),windows)
host-cp = copy /b/y $(subst /,\,"$1" "$2") > NUL
else
host-cp = cp -f $1 $2
endif
# -----------------------------------------------------------------------------
# Function : host-install
# Arguments: 1: source file
# 2: target file
# Usage : $(call host-install,<src-file>,<dst-file>)
# Rationale: This function expands to the host-specific shell command used
# to install a file or directory, while preserving its timestamps
# (if possible).
# -----------------------------------------------------------------------------
ifeq ($(HOST_OS),windows)
host-install = copy /b/y $(subst /,\,"$1" "$2") > NUL
else
host-install = install -p $1 $2
endif
# -----------------------------------------------------------------------------
# Function : host-c-includes
# Arguments: 1: list of file paths (e.g. "foo bar")
# Returns : list of include compiler options (e.g. "-Ifoo -Ibar")
# Usage : $(call host-c-includes,<paths>)
# Rationale: This function is used to translate Cygwin paths into
# Cygwin-specific ones. On other platforms, it will just
# return its argument.
# -----------------------------------------------------------------------------
ifeq ($(HOST_OS),cygwin)
host-c-includes = $(patsubst %,-I%,$(call host-path,$1))
else
host-c-includes = $(1:%=-I%)
endif
# -----------------------------------------------------------------------------
# Function : copy-if-differ
# Arguments: 1: source file
# 2: destination file
# Usage : $(call copy-if-differ,<src-file>,<dst-file>)
# Rationale: This function copy source file to destination file if contents are
# different.
# -----------------------------------------------------------------------------
ifeq ($(HOST_OS),windows)
copy-if-differ = $(HOST_CMP) -s $1 $2 > NUL || copy /b/y $(subst /,\,"$1" "$2") > NUL
else
copy-if-differ = $(HOST_CMP) -s $1 $2 > /dev/null 2>&1 || cp -f $1 $2
endif
# -----------------------------------------------------------------------------
# Function : generate-dir
# Arguments: 1: directory path
# Returns : Generate a rule, but not dependency, to create a directory with
# host-mkdir.
# Usage : $(call generate-dir,<path>)
# -----------------------------------------------------------------------------
define ev-generate-dir
__ndk_dir := $1
ifeq (,$$(__ndk_dir_flag__$1))
__ndk_dir_flag__$1 := true
$1:
@$$(call host-mkdir,$$@)
endif
endef
generate-dir = $(eval $(call ev-generate-dir,$1))
# -----------------------------------------------------------------------------
# Function : generate-file-dir
# Arguments: 1: file path
# Returns : Generate a dependency and a rule to ensure that the parent
# directory of the input file path will be created before it.
# This is used to enforce a call to host-mkdir.
# Usage : $(call generate-file-dir,<file>)
# Rationale: Many object files will be stored in the same output directory.
# Introducing a dependency on the latter avoids calling mkdir -p
# for every one of them.
#
# -----------------------------------------------------------------------------
define ev-generate-file-dir
__ndk_file_dir := $(call parent-dir,$1)
$$(call generate-dir,$$(__ndk_file_dir))
$1: $$(__ndk_file_dir)
endef
generate-file-dir = $(eval $(call ev-generate-file-dir,$1))
# -----------------------------------------------------------------------------
# Function : generate-list-file
# Arguments: 1: list of strings (possibly very long)
# 2: file name
# Returns : write the content of a possibly very long string list to a file.
# this shall be used in commands and will work around limitations
# of host command-line lengths.
# Usage : $(call host-echo-to-file,<string-list>,<file>)
# Rationale: When there is a very large number of objects and/or libraries at
# link time, the size of the command becomes too large for the
# host system's maximum. Various tools however support the
# @<listfile> syntax, where <listfile> is the path of a file
# which content will be parsed as if they were options.
#
# This function is used to generate such a list file from a long
# list of strings in input.
#
# -----------------------------------------------------------------------------
# Helper functions because the GNU Make $(word ...) function does
# not accept a 0 index, so we need to bump any of these to 1 when
# we find them.
#
index-is-zero = $(filter 0 00 000 0000 00000 000000 0000000,$1)
bump-0-to-1 = $(if $(call index-is-zero,$1),1,$1)
# Same as $(wordlist ...) except the start index, if 0, is bumped to 1
index-word-list = $(wordlist $(call bump-0-to-1,$1),$2,$3)
# NOTE: With GNU Make $1 and $(1) are equivalent, which means
# that $10 is equivalent to $(1)0, and *not* $(10).
# Used to generate a slice of up to 10 items starting from index $1,
# If $1 is 0, it will be bumped to 1 (and only 9 items will be printed)
# $1: start (tenth) index. Can be 0
# $2: word list
#
define list-file-start-gen-10
$$(hide) $$(HOST_ECHO_N) "$(call index-word-list,$10,$19,$2) " >> $$@
endef
# Used to generate a slice of always 10 items starting from index $1
# $1: start (tenth) index. CANNOT BE 0
# $2: word list
define list-file-always-gen-10
$$(hide) $$(HOST_ECHO_N) "$(wordlist $10,$19,$2) " >> $$@
endef
# Same as list-file-always-gen-10, except that the word list might be
# empty at position $10 (i.e. $(1)0)
define list-file-maybe-gen-10
ifneq ($(word $10,$2),)
$$(hide) $$(HOST_ECHO_N) "$(wordlist $10,$19,$2) " >> $$@
endif
endef
define list-file-start-gen-100
$(call list-file-start-gen-10,$10,$2)
$(call list-file-always-gen-10,$11,$2)
$(call list-file-always-gen-10,$12,$2)
$(call list-file-always-gen-10,$13,$2)
$(call list-file-always-gen-10,$14,$2)
$(call list-file-always-gen-10,$15,$2)
$(call list-file-always-gen-10,$16,$2)
$(call list-file-always-gen-10,$17,$2)
$(call list-file-always-gen-10,$18,$2)
$(call list-file-always-gen-10,$19,$2)
endef
define list-file-always-gen-100
$(call list-file-always-gen-10,$10,$2)
$(call list-file-always-gen-10,$11,$2)
$(call list-file-always-gen-10,$12,$2)
$(call list-file-always-gen-10,$13,$2)
$(call list-file-always-gen-10,$14,$2)
$(call list-file-always-gen-10,$15,$2)
$(call list-file-always-gen-10,$16,$2)
$(call list-file-always-gen-10,$17,$2)
$(call list-file-always-gen-10,$18,$2)
$(call list-file-always-gen-10,$19,$2)
endef
define list-file-maybe-gen-100
ifneq ($(word $(call bump-0-to-1,$100),$2),)
ifneq ($(word $199,$2),)
$(call list-file-start-gen-10,$10,$2)
$(call list-file-always-gen-10,$11,$2)
$(call list-file-always-gen-10,$12,$2)
$(call list-file-always-gen-10,$13,$2)
$(call list-file-always-gen-10,$14,$2)
$(call list-file-always-gen-10,$15,$2)
$(call list-file-always-gen-10,$16,$2)
$(call list-file-always-gen-10,$17,$2)
$(call list-file-always-gen-10,$18,$2)
$(call list-file-always-gen-10,$19,$2)
else
ifneq ($(word $150,$2),)
$(call list-file-start-gen-10,$10,$2)
$(call list-file-always-gen-10,$11,$2)
$(call list-file-always-gen-10,$12,$2)
$(call list-file-always-gen-10,$13,$2)
$(call list-file-always-gen-10,$14,$2)
$(call list-file-maybe-gen-10,$15,$2)
$(call list-file-maybe-gen-10,$16,$2)
$(call list-file-maybe-gen-10,$17,$2)
$(call list-file-maybe-gen-10,$18,$2)
$(call list-file-maybe-gen-10,$19,$2)
else
$(call list-file-start-gen-10,$10,$2)
$(call list-file-maybe-gen-10,$11,$2)
$(call list-file-maybe-gen-10,$12,$2)
$(call list-file-maybe-gen-10,$13,$2)
$(call list-file-maybe-gen-10,$14,$2)
endif
endif
endif
endef
define list-file-maybe-gen-1000
ifneq ($(word $(call bump-0-to-1,$1000),$2),)
ifneq ($(word $1999,$2),)
$(call list-file-start-gen-100,$10,$2)
$(call list-file-always-gen-100,$11,$2)
$(call list-file-always-gen-100,$12,$2)
$(call list-file-always-gen-100,$13,$2)
$(call list-file-always-gen-100,$14,$2)
$(call list-file-always-gen-100,$15,$2)
$(call list-file-always-gen-100,$16,$2)
$(call list-file-always-gen-100,$17,$2)
$(call list-file-always-gen-100,$18,$2)
$(call list-file-always-gen-100,$19,$2)
else
ifneq ($(word $1500,$2),)
$(call list-file-start-gen-100,$10,$2)
$(call list-file-always-gen-100,$11,$2)
$(call list-file-always-gen-100,$12,$2)
$(call list-file-always-gen-100,$13,$2)
$(call list-file-always-gen-100,$14,$2)
$(call list-file-maybe-gen-100,$15,$2)
$(call list-file-maybe-gen-100,$16,$2)
$(call list-file-maybe-gen-100,$17,$2)
$(call list-file-maybe-gen-100,$18,$2)
$(call list-file-maybe-gen-100,$19,$2)
else
$(call list-file-start-gen-100,$10,$2)
$(call list-file-maybe-gen-100,$11,$2)
$(call list-file-maybe-gen-100,$12,$2)
$(call list-file-maybe-gen-100,$13,$2)
$(call list-file-maybe-gen-100,$14,$2)
endif
endif
endif
endef
define generate-list-file-ev
__list_file := $2
.PHONY: $$(__list_file).tmp
$$(call generate-file-dir,$$(__list_file).tmp)
$$(__list_file).tmp:
$$(hide) $$(HOST_ECHO_N) "" > $$@
$(call list-file-maybe-gen-1000,0,$1)
$(call list-file-maybe-gen-1000,1,$1)
$(call list-file-maybe-gen-1000,2,$1)
$(call list-file-maybe-gen-1000,3,$1)
$(call list-file-maybe-gen-1000,4,$1)
$(call list-file-maybe-gen-1000,5,$1)
$$(__list_file): $$(__list_file).tmp
$$(hide) $$(call copy-if-differ,$$@.tmp,$$@)
$$(hide) $$(call host-rm,$$@.tmp)
endef
generate-list-file = $(eval $(call generate-list-file-ev,$1,$2))
# -----------------------------------------------------------------------------
# Function : link-whole-archives
# Arguments: 1: list of whole static libraries
# Returns : linker flags to use the whole static libraries
# Usage : $(call link-whole-archives,<libraries>)
# Rationale: This function is used to put the list of whole static libraries
# inside a -Wl,--whole-archive ... -Wl,--no-whole-archive block.
# If the list is empty, it returns an empty string.
# This function also calls host-path to translate the library
# paths.
# -----------------------------------------------------------------------------
link-whole-archives = $(if $(strip $1),$(call link-whole-archive-flags,$1))
link-whole-archive-flags = -Wl,--whole-archive $(call host-path,$1) -Wl,--no-whole-archive
# =============================================================================
#
# Modules database
#
# The following declarations are used to manage the list of modules
# defined in application's Android.mk files.
#
# Technical note:
# We use __ndk_modules to hold the list of all modules corresponding
# to a given application.
#
# For each module 'foo', __ndk_modules.foo.<field> is used
# to store module-specific information.
#
# type -> type of module (e.g. 'static', 'shared', ...)
# depends -> list of other modules this module depends on
#
# Also, LOCAL_XXXX values defined for a module are recorded in XXXX, e.g.:
#
# PATH -> recorded LOCAL_PATH for the module
# CFLAGS -> recorded LOCAL_CFLAGS for the module
# ...
#
# Some of these are created by build scripts like BUILD_STATIC_LIBRARY:
#
# MAKEFILE -> The Android.mk where the module is defined.
# LDFLAGS -> Final linker flags
# OBJECTS -> List of module objects
# BUILT_MODULE -> location of module built file (e.g. obj/<app>/<abi>/libfoo.so)
#
# Note that some modules are never installed (e.g. static libraries).
#
# =============================================================================
# The list of LOCAL_XXXX variables that are recorded for each module definition
# These are documented by docs/ANDROID-MK.TXT. Exception is LOCAL_MODULE
#
modules-LOCALS := \
MODULE \
MODULE_FILENAME \
PATH \
SRC_FILES \
CPP_EXTENSION \
C_INCLUDES \
CFLAGS \
CXXFLAGS \
CPPFLAGS \
STATIC_LIBRARIES \
WHOLE_STATIC_LIBRARIES \
SHARED_LIBRARIES \
LDLIBS \
ALLOW_UNDEFINED_SYMBOLS \
ARM_MODE \
ARM_NEON \
DISABLE_NO_EXECUTE \
DISABLE_RELRO \
EXPORT_CFLAGS \
EXPORT_CPPFLAGS \
EXPORT_LDLIBS \
EXPORT_C_INCLUDES \
FILTER_ASM \
CPP_FEATURES \
SHORT_COMMANDS \
# The following are generated by the build scripts themselves
# LOCAL_MAKEFILE will contain the path to the Android.mk defining the module
modules-LOCALS += MAKEFILE
# LOCAL_LDFLAGS will contain the set of final linker flags for the module
modules-LOCALS += LDFLAGS
# LOCAL_OBJECTS will contain the list of object files generated from the
# module's sources, if any.
modules-LOCALS += OBJECTS
# LOCAL_BUILT_MODULE will contain the location of the symbolic version of
# the generated module (i.e. the one containing all symbols used during
# native debugging). It is generally under $PROJECT/obj/local/
modules-LOCALS += BUILT_MODULE
# LOCAL_OBJS_DIR will contain the location where the object files for
# this module will be stored. Usually $PROJECT/obj/local/<module>/obj
modules-LOCALS += OBJS_DIR
# LOCAL_INSTALLED will contain the location of the installed version
# of the module. Usually $PROJECT/libs/<abi>/<prefix><module><suffix>
# where <prefix> and <suffix> depend on the module class.
modules-LOCALS += INSTALLED
# LOCAL_MODULE_CLASS will contain the type of the module
# (e.g. STATIC_LIBRARY, SHARED_LIBRARY, etc...)
modules-LOCALS += MODULE_CLASS
# the list of managed fields per module
modules-fields = depends \
$(modules-LOCALS)
# -----------------------------------------------------------------------------
# Function : modules-clear
# Arguments: None
# Returns : None
# Usage : $(call modules-clear)
# Rationale: clears the list of defined modules known by the build system
# -----------------------------------------------------------------------------
modules-clear = \
$(foreach __mod,$(__ndk_modules),\
$(foreach __field,$(modules-fields),\
$(eval __ndk_modules.$(__mod).$(__field) := $(empty))\
)\
)\
$(eval __ndk_modules := $(empty_set)) \
$(eval __ndk_top_modules := $(empty)) \
$(eval __ndk_import_list := $(empty)) \
$(eval __ndk_import_depth := $(empty))
# -----------------------------------------------------------------------------
# Function : modules-get-list
# Arguments: None
# Returns : The list of all recorded modules
# Usage : $(call modules-get-list)
# -----------------------------------------------------------------------------
modules-get-list = $(__ndk_modules)
# -----------------------------------------------------------------------------
# Function : modules-get-top-list
# Arguments: None
# Returns : The list of all recorded non-imported modules
# Usage : $(call modules-get-top-list)
# -----------------------------------------------------------------------------
modules-get-top-list = $(__ndk_top_modules)
# -----------------------------------------------------------------------------
# Function : module-add
# Arguments: 1: module name
# Returns : None
# Usage : $(call module-add,<modulename>)
# Rationale: add a new module. If it is already defined, print an error message
# and abort. This will record all LOCAL_XXX variables for the module.
# -----------------------------------------------------------------------------
module-add = \
$(call assert-defined,LOCAL_MAKEFILE LOCAL_BUILT_MODULE LOCAL_OBJS_DIR LOCAL_MODULE_CLASS)\
$(if $(call set_is_member,$(__ndk_modules),$1),\
$(call __ndk_info,Trying to define local module '$1' in $(LOCAL_MAKEFILE).)\
$(call __ndk_info,But this module was already defined by $(__ndk_modules.$1.MAKEFILE).)\
$(call __ndk_error,Aborting.)\
)\
$(eval __ndk_modules := $(call set_insert,$(__ndk_modules),$1))\
$(if $(strip $(__ndk_import_depth)),,\
$(eval __ndk_top_modules := $(call set_insert,$(__ndk_top_modules),$1))\
)\
$(if $(call module-class-is-installable,$(LOCAL_MODULE_CLASS)),\
$(eval LOCAL_INSTALLED := $(NDK_APP_DST_DIR)/$(notdir $(LOCAL_BUILT_MODULE)))\
)\
$(foreach __local,$(modules-LOCALS),\
$(eval __ndk_modules.$1.$(__local) := $(LOCAL_$(__local)))\
)\
$(call module-handle-c++-features,$1)
# Retrieve the class of module $1
module-get-class = $(__ndk_modules.$1.MODULE_CLASS)
# Retrieve built location of module $1
module-get-built = $(__ndk_modules.$1.BUILT_MODULE)
# Returns $(true) is module $1 is installable
# An installable module is one that will be copied to $PROJECT/libs/<abi>/
# (e.g. shared libraries).
#
module-is-installable = $(call module-class-is-installable,$(call module-get-class,$1))
# Returns $(true) if module $1 is prebuilt
# A prebuilt module is one declared with BUILD_PREBUILT_SHARED_LIBRARY or
# BUILD_PREBUILT_STATIC_LIBRARY
#
module-is-prebuilt = $(call module-class-is-prebuilt,$(call module-get-class,$1))
# -----------------------------------------------------------------------------
# Function : module-get-export
# Arguments: 1: module name
# 2: export variable name without LOCAL_EXPORT_ prefix (e.g. 'CFLAGS')
# Returns : Exported value
# Usage : $(call module-get-export,<modulename>,<varname>)
# Rationale: Return the recorded value of LOCAL_EXPORT_$2, if any, for module $1
# -----------------------------------------------------------------------------
module-get-export = $(__ndk_modules.$1.EXPORT_$2)
# -----------------------------------------------------------------------------
# Function : module-get-listed-export
# Arguments: 1: list of module names
# 2: export variable name without LOCAL_EXPORT_ prefix (e.g. 'CFLAGS')
# Returns : Exported values
# Usage : $(call module-get-listed-export,<module-list>,<varname>)
# Rationale: Return the recorded value of LOCAL_EXPORT_$2, if any, for modules
# listed in $1.
# -----------------------------------------------------------------------------
module-get-listed-export = $(strip \
$(foreach __listed_module,$1,\
$(call module-get-export,$(__listed_module),$2)\
))
# -----------------------------------------------------------------------------
# Function : modules-restore-locals
# Arguments: 1: module name
# Returns : None
# Usage : $(call module-restore-locals,<modulename>)
# Rationale: Restore the recorded LOCAL_XXX definitions for a given module.
# -----------------------------------------------------------------------------
module-restore-locals = \
$(foreach __local,$(modules-LOCALS),\
$(eval LOCAL_$(__local) := $(__ndk_modules.$1.$(__local)))\
)
# Dump all module information. Only use this for debugging
modules-dump-database = \
$(info Modules: $(__ndk_modules)) \
$(foreach __mod,$(__ndk_modules),\
$(info $(space4)$(__mod):)\
$(foreach __field,$(modules-fields),\
$(eval __fieldval := $(strip $(__ndk_modules.$(__mod).$(__field))))\
$(if $(__fieldval),\
$(if $(filter 1,$(words $(__fieldval))),\
$(info $(space4)$(space4)$(__field): $(__fieldval)),\
$(info $(space4)$(space4)$(__field): )\
$(foreach __fielditem,$(__fieldval),\
$(info $(space4)$(space4)$(space4)$(__fielditem))\
)\
)\
)\
)\
)\
$(info --- end of modules list)
# -----------------------------------------------------------------------------
# Function : module-add-static-depends
# Arguments: 1: module name
# 2: list/set of static library modules this module depends on.
# Returns : None
# Usage : $(call module-add-static-depends,<modulename>,<list of module names>)
# Rationale: Record that a module depends on a set of static libraries.
# Use module-get-static-dependencies to retrieve final list.
# -----------------------------------------------------------------------------
module-add-static-depends = \
$(call module-add-depends-any,$1,$2,depends) \
# -----------------------------------------------------------------------------
# Function : module-add-shared-depends
# Arguments: 1: module name
# 2: list/set of shared library modules this module depends on.
# Returns : None
# Usage : $(call module-add-shared-depends,<modulename>,<list of module names>)
# Rationale: Record that a module depends on a set of shared libraries.
# Use modulge-get-shared-dependencies to retrieve final list.
# -----------------------------------------------------------------------------
module-add-shared-depends = \
$(call module-add-depends-any,$1,$2,depends) \
# Used internally by module-add-static-depends and module-add-shared-depends
# NOTE: this function must not modify the existing dependency order when new depends are added.
#
module-add-depends-any = \
$(eval __ndk_modules.$1.$3 += $(filter-out $(__ndk_modules.$1.$3),$(call strip-lib-prefix,$2)))
# Used to recompute all dependencies once all module information has been recorded.
#
modules-compute-dependencies = \
$(foreach __module,$(__ndk_modules),\
$(call module-compute-depends,$(__module))\
)
module-compute-depends = \
$(call module-add-static-depends,$1,$(__ndk_modules.$1.STATIC_LIBRARIES))\
$(call module-add-static-depends,$1,$(__ndk_modules.$1.WHOLE_STATIC_LIBRARIES))\
$(call module-add-shared-depends,$1,$(__ndk_modules.$1.SHARED_LIBRARIES))\
module-get-installed = $(__ndk_modules.$1.INSTALLED)
# -----------------------------------------------------------------------------
# Function : modules-get-all-dependencies
# Arguments: 1: list of module names
# Returns : List of all the modules $1 depends on transitively.
# Usage : $(call modules-all-get-dependencies,<list of module names>)
# Rationale: This computes the closure of all module dependencies starting from $1
# -----------------------------------------------------------------------------
module-get-all-dependencies = $(strip \
$(call modules-get-closure,$1,depends))
modules-get-closure = \
$(eval __closure_deps := $(strip $(call strip-lib-prefix,$1))) \
$(eval __closure_wq := $(__closure_deps)) \
$(eval __closure_field := $(strip $2)) \
$(call modules-closure)\
$(__closure_deps)
# Used internally by modules-get-all-dependencies
# Note the tricky use of conditional recursion to work around the fact that
# the GNU Make language does not have any conditional looping construct
# like 'while'.
#
modules-closure = \
$(eval __closure_mod := $(call first,$(__closure_wq))) \
$(eval __closure_wq := $(call rest,$(__closure_wq))) \
$(eval __closure_val := $(call strip-lib-prefix,$(__ndk_modules.$(__closure_mod).$(__closure_field)))) \
$(eval __closure_new := $(filter-out $(__closure_deps),$(__closure_val)))\
$(eval __closure_deps += $(__closure_new)) \
$(eval __closure_wq := $(strip $(__closure_wq) $(__closure_new)))\
$(if $(__closure_wq),$(call modules-closure)) \
# -----------------------------------------------------------------------------
# Function : module-get-depends
# Arguments: 1: list of module names
# 2: local module type (e.g. SHARED_LIBRARIES)
# Returns : List all the <local-type> modules $1 depends on transitively.
# Usage : $(call module-get-depends,<list of module names>,<local-type>)
# Rationale: This computes the closure of all local module dependencies starting from $1
# -----------------------------------------------------------------------------
module-get-depends = $(strip $(call modules-get-closure,$1,$2))
# -----------------------------------------------------------------------------
# Function : modules-get-all-installable
# Arguments: 1: list of module names
# Returns : List of all the installable modules $1 depends on transitively.
# Usage : $(call modules-all-get-installable,<list of module names>)
# Rationale: This computes the closure of all installable module dependencies starting from $1
# -----------------------------------------------------------------------------
# For now, only the closure of LOCAL_SHARED_LIBRARIES is enough
modules-get-all-installable = $(strip \
$(foreach __alldep,$(call module-get-depends,$1,depends),\
$(if $(call module-is-installable,$(__alldep)),$(__alldep))\
))
# Return the C++ extension of a given module
# $1: module name
module-get-cpp-extension = $(strip \
$(if $(__ndk_modules.$1.CPP_EXTENSION),\
$(__ndk_modules.$1.CPP_EXTENSION),\
.cpp\
))
# Return the list of C++ sources of a given module
#
module-get-c++-sources = \
$(eval __files := $(__ndk_modules.$1.SRC_FILES:%.neon=%)) \
$(eval __files := $(__files:%.arm=%)) \
$(filter %$(call module-get-cpp-extension,$1),$(__files))
# Returns true if a module has C++ sources
#
module-has-c++-sources = $(strip $(call module-get-c++-sources,$1))
# Add C++ dependencies to any module that has C++ sources.
# $1: list of C++ runtime static libraries (if any)
# $2: list of C++ runtime shared libraries (if any)
#
modules-add-c++-dependencies = \
$(foreach __module,$(__ndk_modules),\
$(if $(call module-has-c++-sources,$(__module)),\
$(call ndk_log,Module '$(__module)' has C++ sources)\
$(call module-add-c++-deps,$(__module),$1,$2),\
)\
)
# Return the compiler flags used to compile a C++ module
# Order matters and should match the one used by the build command
module-get-c++-flags = $(strip \
$(__ndk_modules.$1.CFLAGS) \
$(__ndk_modules.$1.CPPFLAGS) \
$(__ndk_modules.$1.CXXFLAGS))
# This function is used to remove certain flags from a module compiler flags
# $1: Module name
# $2: List of flags to remove
#
module-filter-out-compiler-flags = \
$(eval __ndk_modules.$1.CFLAGS := $(filter-out $2,$(__ndk_modules.$1.CFLAGS)))\
$(eval __ndk_modules.$1.CPPFLAGS := $(filter-out $2,$(__ndk_modules.$1.CPPFLAGS)))\
$(eval __ndk_modules.$1.CXXFLAGS := $(filter-out $2,$(__ndk_modules.$1.CXXFLAGS)))
# Return true if a module's compiler flags enable rtti
# We just look at -frtti and -fno-rtti on the command-line
# and keep the last one of these flags.
module-flags-have-rtti = $(strip \
$(filter -frtti,\
$(lastword $(filter -frtti -fno-rtti,$(call module-get-c++-flags,$1)))\
)\
)
# Same with C++ exception support (i.e. -fexceptions and -fno-exceptions)
#
module-flags-have-exceptions = $(strip \
$(filter -fexceptions,\
$(lastword $(filter -fexceptions -fno-execeptions,$(call module-get-c++-flags,$1)))\
)\
)
# Handle the definition of LOCAL_CPP_FEATURES, i.e.:
#
# - If it is defined, check that it only contains valid values
# - If it is undefined, try to compute its value automatically by
# looking at the C++ compiler flags used to build the module
#
# After this, we remove all features flags from the module's command-line
# And add only the correct ones back in LOCAL_CPP_FLAGS
#
module-handle-c++-features = \
$(if $(strip $(__ndk_modules.$1.CPP_FEATURES)),\
$(eval __cxxbad := $(filter-out rtti exceptions,$(__ndk_modules.$1.CPP_FEATURES)))\
$(if $(__cxxbad),\
$(call __ndk_info,WARNING: Ignoring invalid values in LOCAL_CPP_FEATURES definition in $(__ndk_modules.$1.MAKEFILE): $(__cxxbad))\
$(eval __ndk_modules.$1.CPP_FEATURES := $(strip $(filter-out $(__cxxbad),$(__ndk_modules.$1.CPP_FEATURES))))\
)\
,\
$(eval __ndk_modules.$1.CPP_FEATURES := $(strip \
$(if $(call module-flags-have-rtti,$1),rtti) \
$(if $(call module-flags-have-exceptions,$1),exceptions) \
)) \
)\
$(call module-filter-out-compiler-flags,$1,-frtti -fno-rtti -fexceptions -fno-exceptions)\
# Returns true if a module or its dependencies have specific C++ features
# (i.e. RTTI or Exceptions)
#
# $1: module name
# $2: list of features (e.g. 'rtti' or 'exceptions')
#
module-has-c++-features = $(strip \
$(eval __cxxdeps := $(call module-get-all-dependencies,$1))\
$(eval __cxxflags := $(foreach __cxxdep,$(__cxxdeps),$(__ndk_modules.$(__cxxdep).CPP_FEATURES)))\
$(if $(filter $2,$(__cxxflags)),true,)\
)
# Add standard C++ dependencies to a given module
#
# $1: module name
# $2: list of C++ runtime static libraries (if any)
# $3: list of C++ runtime shared libraries (if any)
#
module-add-c++-deps = \
$(eval __ndk_modules.$1.STATIC_LIBRARIES += $(2))\
$(eval __ndk_modules.$1.SHARED_LIBRARIES += $(3))
# =============================================================================
#
# Utility functions
#
# =============================================================================
# -----------------------------------------------------------------------------
# Function : parent-dir
# Arguments: 1: path
# Returns : Parent dir or path of $1, with final separator removed.
# -----------------------------------------------------------------------------
parent-dir = $(patsubst %/,%,$(dir $1))
# -----------------------------------------------------------------------------
# Function : pretty-dir
# Arguments: 1: path
# Returns : Remove NDK_PROJECT_PATH prefix from a given path. This can be
# used to perform pretty-printing for logs.
# -----------------------------------------------------------------------------
pretty-dir = $(patsubst $(NDK_ROOT)/%,<NDK>/%,\
$(patsubst $(NDK_PROJECT_PATH)/%,%,$1))
# -----------------------------------------------------------------------------
# Function : check-user-define
# Arguments: 1: name of variable that must be defined by the user
# 2: name of Makefile where the variable should be defined
# 3: name/description of the Makefile where the check is done, which
# must be included by $2
# Returns : None
# -----------------------------------------------------------------------------
check-user-define = $(if $(strip $($1)),,\
$(call __ndk_error,Missing $1 before including $3 in $2))
# -----------------------------------------------------------------------------
# This is used to check that LOCAL_MODULE is properly defined by an Android.mk
# file before including one of the $(BUILD_SHARED_LIBRARY), etc... files.
#
# Function : check-user-LOCAL_MODULE
# Arguments: 1: name/description of the included build Makefile where the
# check is done
# Returns : None
# Usage : $(call check-user-LOCAL_MODULE, BUILD_SHARED_LIBRARY)
# -----------------------------------------------------------------------------
check-defined-LOCAL_MODULE = \
$(call check-user-define,LOCAL_MODULE,$(local-makefile),$(1)) \
$(if $(call seq,$(words $(LOCAL_MODULE)),1),,\
$(call __ndk_info,LOCAL_MODULE definition in $(local-makefile) must not contain space)\
$(call __ndk_error,Please correct error. Aborting)\
)
# -----------------------------------------------------------------------------
# This is used to check that LOCAL_MODULE_FILENAME, if defined, is correct.
#
# Function : check-user-LOCAL_MODULE_FILENAME
# Returns : None
# Usage : $(call check-user-LOCAL_MODULE_FILENAME)
# -----------------------------------------------------------------------------
check-LOCAL_MODULE_FILENAME = \
$(if $(strip $(LOCAL_MODULE_FILENAME)),\
$(if $(call seq,$(words $(LOCAL_MODULE_FILENAME)),1),,\
$(call __ndk_info,$(LOCAL_MAKEFILE):$(LOCAL_MODULE): LOCAL_MODULE_FILENAME must not contain spaces)\
$(call __ndk_error,Plase correct error. Aborting)\
)\
$(if $(filter %.a %.so,$(LOCAL_MODULE_FILENAME)),\
$(call __ndk_info,$(LOCAL_MAKEFILE):$(LOCAL_MODULE): LOCAL_MODULE_FILENAME should not include file extensions)\
)\
)
# -----------------------------------------------------------------------------
# Function : handle-module-filename
# Arguments : 1: default file prefix
# 2: file suffix
# Returns : None
# Usage : $(call handle-module-filename,<prefix>,<suffix>)
# Rationale : To be used to check and or set the module's filename through
# the LOCAL_MODULE_FILENAME variable.
# -----------------------------------------------------------------------------
handle-module-filename = $(eval $(call ev-handle-module-filename,$1,$2))
#
# Check that LOCAL_MODULE_FILENAME is properly defined
# - with one single item
# - without a library file extension
# - with no directory separators
#
define ev-check-module-filename
ifneq (1,$$(words $$(LOCAL_MODULE_FILENAME)))
$$(call __ndk_info,$$(LOCAL_MAKEFILE):$$(LOCAL_MODULE): LOCAL_MODULE_FILENAME must not contain any space)
$$(call __ndk_error,Aborting)
endif
ifneq (,$$(filter %.a %.so,$$(LOCAL_MODULE_FILENAME)))
$$(call __ndk_info,$$(LOCAL_MAKEFILE):$$(LOCAL_MODULE): LOCAL_MODULE_FILENAME must not contain a file extension)
$$(call __ndk_error,Aborting)
endif
ifneq (1,$$(words $$(subst /, ,$$(LOCAL_MODULE_FILENAME))))
$$(call __ndk_info,$$(LOCAL_MAKEFILE):$$(LOCAL_MODULE): LOCAL_MODULE_FILENAME must not contain directory separators)
$$(call __ndk_error,Aborting)
endif
endef
#
# Check the definition of LOCAL_MODULE_FILENAME. If none exists,
# infer it from the LOCAL_MODULE name.
#
# $1: default file prefix
# $2: default file suffix
#
define ev-handle-module-filename
LOCAL_MODULE_FILENAME := $$(strip $$(LOCAL_MODULE_FILENAME))
ifndef LOCAL_MODULE_FILENAME
LOCAL_MODULE_FILENAME := $1$$(LOCAL_MODULE)
endif
$$(eval $$(call ev-check-module-filename))
LOCAL_MODULE_FILENAME := $$(LOCAL_MODULE_FILENAME)$2
endef
handle-prebuilt-module-filename = $(eval $(call ev-handle-prebuilt-module-filename,$1))
#
# Check the definition of LOCAL_MODULE_FILENAME for a _prebuilt_ module.
# If none exists, infer it from $(LOCAL_SRC_FILES)
#
# $1: default file suffix
#
define ev-handle-prebuilt-module-filename
LOCAL_MODULE_FILENAME := $$(strip $$(LOCAL_MODULE_FILENAME))
ifndef LOCAL_MODULE_FILENAME
LOCAL_MODULE_FILENAME := $$(notdir $(LOCAL_SRC_FILES))
LOCAL_MODULE_FILENAME := $$(LOCAL_MODULE_FILENAME:%.a=%)
LOCAL_MODULE_FILENAME := $$(LOCAL_MODULE_FILENAME:%.so=%)
endif
LOCAL_MODULE_FILENAME := $$(LOCAL_MODULE_FILENAME)$1
$$(eval $$(call ev-check-module-filename))
endef
# -----------------------------------------------------------------------------
# Function : handle-module-built
# Returns : None
# Usage : $(call handle-module-built)
# Rationale : To be used to automatically compute the location of the generated
# binary file, and the directory where to place its object files.
# -----------------------------------------------------------------------------
handle-module-built = \
$(eval LOCAL_BUILT_MODULE := $(TARGET_OUT)/$(LOCAL_MODULE_FILENAME))\
$(eval LOCAL_OBJS_DIR := $(TARGET_OBJS)/$(LOCAL_MODULE))
# -----------------------------------------------------------------------------
# Strip any 'lib' prefix in front of a given string.
#
# Function : strip-lib-prefix
# Arguments: 1: module name
# Returns : module name, without any 'lib' prefix if any
# Usage : $(call strip-lib-prefix,$(LOCAL_MODULE))
# -----------------------------------------------------------------------------
strip-lib-prefix = $(1:lib%=%)
# -----------------------------------------------------------------------------
# This is used to strip any lib prefix from LOCAL_MODULE, then check that
# the corresponding module name is not already defined.
#
# Function : check-user-LOCAL_MODULE
# Arguments: 1: path of Android.mk where this LOCAL_MODULE is defined
# Returns : None
# Usage : $(call check-LOCAL_MODULE,$(LOCAL_MAKEFILE))
# -----------------------------------------------------------------------------
check-LOCAL_MODULE = \
$(eval LOCAL_MODULE := $$(call strip-lib-prefix,$$(LOCAL_MODULE)))
# -----------------------------------------------------------------------------
# Macro : my-dir
# Returns : the directory of the current Makefile
# Usage : $(my-dir)
# -----------------------------------------------------------------------------
my-dir = $(call parent-dir,$(lastword $(MAKEFILE_LIST)))
# -----------------------------------------------------------------------------
# Function : all-makefiles-under
# Arguments: 1: directory path
# Returns : a list of all makefiles immediately below some directory
# Usage : $(call all-makefiles-under, <some path>)
# -----------------------------------------------------------------------------
all-makefiles-under = $(wildcard $1/*/Android.mk)
# -----------------------------------------------------------------------------
# Macro : all-subdir-makefiles
# Returns : list of all makefiles in subdirectories of the current Makefile's
# location
# Usage : $(all-subdir-makefiles)
# -----------------------------------------------------------------------------
all-subdir-makefiles = $(call all-makefiles-under,$(call my-dir))
# =============================================================================
#
# Source file tagging support.
#
# Each source file listed in LOCAL_SRC_FILES can have any number of
# 'tags' associated to it. A tag name must not contain space, and its
# usage can vary.
#
# For example, the 'debug' tag is used to sources that must be built
# in debug mode, the 'arm' tag is used for sources that must be built
# using the 32-bit instruction set on ARM platforms, and 'neon' is used
# for sources that must be built with ARM Advanced SIMD (a.k.a. NEON)
# support.
#
# More tags might be introduced in the future.
#
# LOCAL_SRC_TAGS contains the list of all tags used (initially empty)
# LOCAL_SRC_FILES contains the list of all source files.
# LOCAL_SRC_TAG.<tagname> contains the set of source file names tagged
# with <tagname>
# LOCAL_SRC_FILES_TAGS.<filename> contains the set of tags for a given
# source file name
#
# Tags are processed by a toolchain-specific function (e.g. TARGET-compute-cflags)
# which will call various functions to compute source-file specific settings.
# These are currently stored as:
#
# LOCAL_SRC_FILES_TARGET_CFLAGS.<filename> contains the list of
# target-specific C compiler flags used to compile a given
# source file. This is set by the function TARGET-set-cflags
# defined in the toolchain's setup.mk script.
#
# LOCAL_SRC_FILES_TEXT.<filename> contains the 'text' that will be
# displayed along the label of the build output line. For example
# 'thumb' or 'arm ' with ARM-based toolchains.
#
# =============================================================================
# -----------------------------------------------------------------------------
# Macro : clear-all-src-tags
# Returns : remove all source file tags and associated data.
# Usage : $(clear-all-src-tags)
# -----------------------------------------------------------------------------
clear-all-src-tags = \
$(foreach __tag,$(LOCAL_SRC_TAGS), \
$(eval LOCAL_SRC_TAG.$(__tag) := $(empty)) \
) \
$(foreach __src,$(LOCAL_SRC_FILES), \
$(eval LOCAL_SRC_FILES_TAGS.$(__src) := $(empty)) \
$(eval LOCAL_SRC_FILES_TARGET_CFLAGS.$(__src) := $(empty)) \
$(eval LOCAL_SRC_FILES_TEXT.$(__src) := $(empty)) \
) \
$(eval LOCAL_SRC_TAGS := $(empty_set))
# -----------------------------------------------------------------------------
# Macro : tag-src-files
# Arguments: 1: list of source files to tag
# 2: tag name (must not contain space)
# Usage : $(call tag-src-files,<list-of-source-files>,<tagname>)
# Rationale: Add a tag to a list of source files
# -----------------------------------------------------------------------------
tag-src-files = \
$(eval LOCAL_SRC_TAGS := $(call set_insert,$2,$(LOCAL_SRC_TAGS))) \
$(eval LOCAL_SRC_TAG.$2 := $(call set_union,$1,$(LOCAL_SRC_TAG.$2))) \
$(foreach __src,$1, \
$(eval LOCAL_SRC_FILES_TAGS.$(__src) += $2) \
)
# -----------------------------------------------------------------------------
# Macro : get-src-files-with-tag
# Arguments: 1: tag name
# Usage : $(call get-src-files-with-tag,<tagname>)
# Return : The list of source file names that have been tagged with <tagname>
# -----------------------------------------------------------------------------
get-src-files-with-tag = $(LOCAL_SRC_TAG.$1)
# -----------------------------------------------------------------------------
# Macro : get-src-files-without-tag
# Arguments: 1: tag name
# Usage : $(call get-src-files-without-tag,<tagname>)
# Return : The list of source file names that have NOT been tagged with <tagname>
# -----------------------------------------------------------------------------
get-src-files-without-tag = $(filter-out $(LOCAL_SRC_TAG.$1),$(LOCAL_SRC_FILES))
# -----------------------------------------------------------------------------
# Macro : set-src-files-target-cflags
# Arguments: 1: list of source files
# 2: list of compiler flags
# Usage : $(call set-src-files-target-cflags,<sources>,<flags>)
# Rationale: Set or replace the set of compiler flags that will be applied
# when building a given set of source files. This function should
# normally be called from the toolchain-specific function that
# computes all compiler flags for all source files.
# -----------------------------------------------------------------------------
set-src-files-target-cflags = $(foreach __src,$1,$(eval LOCAL_SRC_FILES_TARGET_CFLAGS.$(__src) := $2))
# -----------------------------------------------------------------------------
# Macro : add-src-files-target-cflags
# Arguments: 1: list of source files
# 2: list of compiler flags
# Usage : $(call add-src-files-target-cflags,<sources>,<flags>)
# Rationale: A variant of set-src-files-target-cflags that can be used
# to append, instead of replace, compiler flags for specific
# source files.
# -----------------------------------------------------------------------------
add-src-files-target-cflags = $(foreach __src,$1,$(eval LOCAL_SRC_FILES_TARGET_CFLAGS.$(__src) += $2))
# -----------------------------------------------------------------------------
# Macro : get-src-file-target-cflags
# Arguments: 1: single source file name
# Usage : $(call get-src-file-target-cflags,<source>)
# Rationale: Return the set of target-specific compiler flags that must be
# applied to a given source file. These must be set prior to this
# call using set-src-files-target-cflags or add-src-files-target-cflags
# -----------------------------------------------------------------------------
get-src-file-target-cflags = $(LOCAL_SRC_FILES_TARGET_CFLAGS.$1)
# -----------------------------------------------------------------------------
# Macro : set-src-files-text
# Arguments: 1: list of source files
# 2: text
# Usage : $(call set-src-files-text,<sources>,<text>)
# Rationale: Set or replace the 'text' associated to a set of source files.
# The text is a very short string that complements the build
# label. For example, it will be either 'thumb' or 'arm ' for
# ARM-based toolchains. This function must be called by the
# toolchain-specific functions that processes all source files.
# -----------------------------------------------------------------------------
set-src-files-text = $(foreach __src,$1,$(eval LOCAL_SRC_FILES_TEXT.$(__src) := $2))
# -----------------------------------------------------------------------------
# Macro : get-src-file-text
# Arguments: 1: single source file
# Usage : $(call get-src-file-text,<source>)
# Rationale: Return the 'text' associated to a given source file when
# set-src-files-text was called.
# -----------------------------------------------------------------------------
get-src-file-text = $(LOCAL_SRC_FILES_TEXT.$1)
# This should only be called for debugging the source files tagging system
dump-src-file-tags = \
$(info LOCAL_SRC_TAGS := $(LOCAL_SRC_TAGS)) \
$(info LOCAL_SRC_FILES = $(LOCAL_SRC_FILES)) \
$(foreach __tag,$(LOCAL_SRC_TAGS),$(info LOCAL_SRC_TAG.$(__tag) = $(LOCAL_SRC_TAG.$(__tag)))) \
$(foreach __src,$(LOCAL_SRC_FILES),$(info LOCAL_SRC_FILES_TAGS.$(__src) = $(LOCAL_SRC_FILES_TAGS.$(__src)))) \
$(info WITH arm = $(call get-src-files-with-tag,arm)) \
$(info WITHOUT arm = $(call get-src-files-without-tag,arm)) \
$(foreach __src,$(LOCAL_SRC_FILES),$(info LOCAL_SRC_FILES_TARGET_CFLAGS.$(__src) = $(LOCAL_SRC_FILES_TARGET_CFLAGS.$(__src)))) \
$(foreach __src,$(LOCAL_SRC_FILES),$(info LOCAL_SRC_FILES_TEXT.$(__src) = $(LOCAL_SRC_FILES_TEXT.$(__src)))) \
# =============================================================================
#
# Application.mk support
#
# =============================================================================
# the list of variables that *must* be defined in Application.mk files
NDK_APP_VARS_REQUIRED :=
# the list of variables that *may* be defined in Application.mk files
NDK_APP_VARS_OPTIONAL := APP_OPTIM APP_CPPFLAGS APP_CFLAGS APP_CXXFLAGS \
APP_PLATFORM APP_BUILD_SCRIPT APP_ABI APP_MODULES \
APP_PROJECT_PATH APP_STL APP_SHORT_COMMANDS
# the list of all variables that may appear in an Application.mk file
# or defined by the build scripts.
NDK_APP_VARS := $(NDK_APP_VARS_REQUIRED) \
$(NDK_APP_VARS_OPTIONAL) \
APP_DEBUG \
APP_DEBUGGABLE \
APP_MANIFEST
# =============================================================================
#
# Android.mk support
#
# =============================================================================
# =============================================================================
#
# Build commands support
#
# =============================================================================
get-object-name = $(strip \
$(subst ../,__/,\
$(eval __obj := $1)\
$(foreach __ext,.c .s .S $(LOCAL_CPP_EXTENSION),\
$(eval __obj := $(__obj:%$(__ext)=%.o))\
)\
$(__obj)\
))
# -----------------------------------------------------------------------------
# Macro : hide
# Returns : nothing
# Usage : $(hide)<make commands>
# Rationale: To be used as a prefix for Make build commands to hide them
# by default during the build. To show them, set V=1 in your
# environment or command-line.
#
# For example:
#
# foo.o: foo.c
# -->|$(hide) <build-commands>
#
# Where '-->|' stands for a single tab character.
#
# -----------------------------------------------------------------------------
ifeq ($(V),1)
hide = $(empty)
else
hide = @
endif
# cmd-convert-deps
#
# On Cygwin, we need to convert the .d dependency file generated by
# the gcc toolchain by transforming any Windows paths inside it into
# Cygwin paths that GNU Make can understand (i.e. C:/Foo => /cygdrive/c/Foo)
#
# To do that, we will force the compiler to write the dependency file to
# <foo>.d.org, which will will later convert through a clever sed script
# that is auto-generated by our build system.
#
# The script is invoked with:
#
# $(NDK_DEPENDENCIES_CONVERTER) foo.d
#
# It will look if foo.d.org exists, and if so, process it
# to generate foo.d, then remove the original foo.d.org.
#
# On other systems, we simply tell the compiler to write to the .d file directly.
#
# NOTE: In certain cases, no dependency file will be generated by the
# compiler (e.g. when compiling an assembly file as foo.s)
#
# convert-deps is used to compute the name of the compiler-generated dependency file
# cmd-convert-deps is a command used to convert it to a Cygwin-specific path
#
ifeq ($(HOST_OS),cygwin)
convert-deps = $1.org
cmd-convert-deps = && $(NDK_DEPENDENCIES_CONVERTER) $1
else
convert-deps = $1
cmd-convert-deps =
endif
# This assumes that many variables have been pre-defined:
# _SRC: source file
# _OBJ: destination file
# _CC: 'compiler' command
# _FLAGS: 'compiler' flags
# _TEXT: Display text (e.g. "Compile++ thumb", must be EXACTLY 15 chars long)
#
define ev-build-file
$$(_OBJ): PRIVATE_SRC := $$(_SRC)
$$(_OBJ): PRIVATE_OBJ := $$(_OBJ)
$$(_OBJ): PRIVATE_DEPS := $$(call host-path,$$(_OBJ).d)
$$(_OBJ): PRIVATE_MODULE := $$(LOCAL_MODULE)
$$(_OBJ): PRIVATE_TEXT := "$$(_TEXT)"
$$(_OBJ): PRIVATE_CC := $$(_CC)
$$(_OBJ): PRIVATE_CFLAGS := $$(_FLAGS)
ifeq ($$(LOCAL_SHORT_COMMANDS),true)
_OPTIONS_LISTFILE := $$(_OBJ).cflags
$$(_OBJ): $$(call generate-list-file,$$(_FLAGS),$$(_OPTIONS_LISTFILE))
$$(_OBJ): PRIVATE_CFLAGS := @$$(call host-path,$$(_OPTIONS_LISTFILE))
$$(_OBJ): $$(_OPTIONS_LISTFILE)
endif
$$(call generate-file-dir,$$(_OBJ))
$$(_OBJ): $$(_SRC) $$(LOCAL_MAKEFILE) $$(NDK_APP_APPLICATION_MK) $$(NDK_DEPENDENCIES_CONVERTER)
@$$(HOST_ECHO) "$$(PRIVATE_TEXT) : $$(PRIVATE_MODULE) <= $$(notdir $$(PRIVATE_SRC))"
$$(hide) $$(PRIVATE_CC) -MMD -MP -MF $$(call convert-deps,$$(PRIVATE_DEPS)) $$(PRIVATE_CFLAGS) $$(call host-path,$$(PRIVATE_SRC)) -o $$(call host-path,$$(PRIVATE_OBJ)) \
$$(call cmd-convert-deps,$$(PRIVATE_DEPS))
endef
# This assumes the same things than ev-build-file, but will handle
# the definition of LOCAL_FILTER_ASM as well.
define ev-build-source-file
LOCAL_DEPENDENCY_DIRS += $$(dir $$(_OBJ))
ifndef LOCAL_FILTER_ASM
# Trivial case: Directly generate an object file
$$(eval $$(call ev-build-file))
else
# This is where things get hairy, we first transform
# the source into an assembler file, send it to the
# filter, then generate a final object file from it.
#
# First, remember the original settings and compute
# the location of our temporary files.
#
_ORG_SRC := $$(_SRC)
_ORG_OBJ := $$(_OBJ)
_ORG_FLAGS := $$(_FLAGS)
_ORG_TEXT := $$(_TEXT)
_OBJ_ASM_ORIGINAL := $$(patsubst %.o,%.s,$$(_ORG_OBJ))
_OBJ_ASM_FILTERED := $$(patsubst %.o,%.filtered.s,$$(_ORG_OBJ))
# If the source file is a plain assembler file, we're going to
# use it directly in our filter.
ifneq (,$$(filter %.s,$$(_SRC)))
_OBJ_ASM_ORIGINAL := $$(_SRC)
endif
#$$(info SRC=$$(_SRC) OBJ=$$(_OBJ) OBJ_ORIGINAL=$$(_OBJ_ASM_ORIGINAL) OBJ_FILTERED=$$(_OBJ_ASM_FILTERED))
# We need to transform the source into an assembly file, instead of
# an object. The proper way to do that depends on the file extension.
#
# For C and C++ source files, simply replace the -c by an -S in the
# compilation command (this forces the compiler to generate an
# assembly file).
#
# For assembler templates (which end in .S), replace the -c with -E
# to send it to the preprocessor instead.
#
# Don't do anything for plain assembly files (which end in .s)
#
ifeq (,$$(filter %.s,$$(_SRC)))
_OBJ := $$(_OBJ_ASM_ORIGINAL)
ifneq (,$$(filter %.S,$$(_SRC)))
_FLAGS := $$(patsubst -c,-E,$$(_ORG_FLAGS))
else
_FLAGS := $$(patsubst -c,-S,$$(_ORG_FLAGS))
endif
$$(eval $$(call ev-build-file))
endif
# Next, process the assembly file with the filter
$$(_OBJ_ASM_FILTERED): PRIVATE_SRC := $$(_OBJ_ASM_ORIGINAL)
$$(_OBJ_ASM_FILTERED): PRIVATE_DST := $$(_OBJ_ASM_FILTERED)
$$(_OBJ_ASM_FILTERED): PRIVATE_FILTER := $$(LOCAL_FILTER_ASM)
$$(_OBJ_ASM_FILTERED): PRIVATE_MODULE := $$(LOCAL_MODULE)
$$(_OBJ_ASM_FILTERED): $$(_OBJ_ASM_ORIGINAL)
@$$(HOST_ECHO) "AsmFilter : $$(PRIVATE_MODULE) <= $$(notdir $$(PRIVATE_SRC))"
$$(hide) $$(PRIVATE_FILTER) $$(PRIVATE_SRC) $$(PRIVATE_DST)
# Then, generate the final object, we need to keep assembler-specific
# flags which look like -Wa,<option>:
_SRC := $$(_OBJ_ASM_FILTERED)
_OBJ := $$(_ORG_OBJ)
_FLAGS := $$(filter -Wa%,$$(_ORG_FLAGS)) -c
_TEXT := "Assembly "
$$(eval $$(call ev-build-file))
endif
endef
# -----------------------------------------------------------------------------
# Template : ev-compile-c-source
# Arguments : 1: single C source file name (relative to LOCAL_PATH)
# 2: target object file (without path)
# Returns : None
# Usage : $(eval $(call ev-compile-c-source,<srcfile>,<objfile>)
# Rationale : Internal template evaluated by compile-c-source and
# compile-s-source
# -----------------------------------------------------------------------------
define ev-compile-c-source
_SRC:=$$(LOCAL_PATH)/$(1)
_OBJ:=$$(LOCAL_OBJS_DIR)/$(2)
_FLAGS := $$($$(my)CFLAGS) \
$$(call get-src-file-target-cflags,$(1)) \
$$(call host-c-includes,$$(LOCAL_C_INCLUDES) $$(LOCAL_PATH)) \
$$(LOCAL_CFLAGS) \
$$(NDK_APP_CFLAGS) \
$$(call host-c-includes,$$($(my)C_INCLUDES)) \
-c \
_TEXT := "Compile $$(call get-src-file-text,$1)"
_CC := $$(NDK_CCACHE) $$(TARGET_CC)
$$(eval $$(call ev-build-source-file))
endef
# -----------------------------------------------------------------------------
# Function : compile-c-source
# Arguments : 1: single C source file name (relative to LOCAL_PATH)
# 2: object file
# Returns : None
# Usage : $(call compile-c-source,<srcfile>,<objfile>)
# Rationale : Setup everything required to build a single C source file
# -----------------------------------------------------------------------------
compile-c-source = $(eval $(call ev-compile-c-source,$1,$2))
# -----------------------------------------------------------------------------
# Function : compile-s-source
# Arguments : 1: single Assembly source file name (relative to LOCAL_PATH)
# 2: object file
# Returns : None
# Usage : $(call compile-s-source,<srcfile>,<objfile>)
# Rationale : Setup everything required to build a single Assembly source file
# -----------------------------------------------------------------------------
compile-s-source = $(eval $(call ev-compile-c-source,$1,$2))
# -----------------------------------------------------------------------------
# Template : ev-compile-cpp-source
# Arguments : 1: single C++ source file name (relative to LOCAL_PATH)
# 2: target object file (without path)
# Returns : None
# Usage : $(eval $(call ev-compile-cpp-source,<srcfile>,<objfile>)
# Rationale : Internal template evaluated by compile-cpp-source
# -----------------------------------------------------------------------------
define ev-compile-cpp-source
_SRC:=$$(LOCAL_PATH)/$(1)
_OBJ:=$$(LOCAL_OBJS_DIR)/$(2)
_FLAGS := $$($$(my)CXXFLAGS) \
$$(call get-src-file-target-cflags,$(1)) \
$$(call host-c-includes, $$(LOCAL_C_INCLUDES) $$(LOCAL_PATH)) \
$$(LOCAL_CFLAGS) \
$$(LOCAL_CPPFLAGS) \
$$(LOCAL_CXXFLAGS) \
$$(NDK_APP_CFLAGS) \
$$(NDK_APP_CPPFLAGS) \
$$(NDK_APP_CXXFLAGS) \
$$(call host-c-includes,$$($(my)C_INCLUDES)) \
-c \
_CC := $$(NDK_CCACHE) $$($$(my)CXX)
_TEXT := "Compile++ $$(call get-src-file-text,$1)"
$$(eval $$(call ev-build-source-file))
endef
# -----------------------------------------------------------------------------
# Function : compile-cpp-source
# Arguments : 1: single C++ source file name (relative to LOCAL_PATH)
# : 2: object file name
# Returns : None
# Usage : $(call compile-c-source,<srcfile>)
# Rationale : Setup everything required to build a single C++ source file
# -----------------------------------------------------------------------------
compile-cpp-source = $(eval $(call ev-compile-cpp-source,$1,$2))
#
# Module imports
#
# Initialize import list
import-init = $(eval __ndk_import_dirs :=)
# Add an optional single directory to the list of import paths
#
import-add-path-optional = \
$(if $(strip $(wildcard $1)),\
$(call ndk_log,Adding import directory: $1)\
$(eval __ndk_import_dirs += $1)\
)\
# Add a directory to the list of import paths
# This will warn if the directory does not exist
#
import-add-path = \
$(if $(strip $(wildcard $1)),\
$(call ndk_log,Adding import directory: $1)\
$(eval __ndk_import_dirs += $1)\
,\
$(call __ndk_info,WARNING: Ignoring unknown import directory: $1)\
)\
import-find-module = $(strip \
$(eval __imported_module :=)\
$(foreach __import_dir,$(__ndk_import_dirs),\
$(if $(__imported_module),,\
$(call ndk_log, Probing $(__import_dir)/$1/Android.mk)\
$(if $(strip $(wildcard $(__import_dir)/$1/Android.mk)),\
$(eval __imported_module := $(__import_dir)/$1)\
)\
)\
)\
$(__imported_module)\
)
# described in docs/IMPORT-MODULE.TXT
# $1: tag name for the lookup
#
# Small technical note on __ndk_import_depth: we use this variable to
# record the depth of recursive import-module calls. The variable is
# initially empty, and we append a "x" to it each time import-module is
# called. I.e. for three recursive calls to import-module, we would get
# the values:
#
# first call: x
# second call: xx
# third call: xxx
#
# This is used in module-add to add the top-level modules (i.e. those
# that are not added with import-module) to __ndk_top_modules, corresponding
# to the default list of wanted modules (see setup-toolchain.mk).
#
import-module = \
$(eval __import_tag := $(strip $1))\
$(if $(call seq,$(words $(__import_tag)),1),,\
$(call __ndk_info,$(call local-makefile): Cannot import module with spaces in tag: '$(__import_tag)')\
)\
$(if $(call set_is_member,$(__ndk_import_list),$(__import_tag)),\
$(call ndk_log,Skipping duplicate import for module with tag '$(__import_tag)')\
,\
$(call ndk_log,Looking for imported module with tag '$(__import_tag)')\
$(eval __imported_path := $(call import-find-module,$(__import_tag)))\
$(if $(__imported_path),\
$(call ndk_log, Found in $(__imported_path))\
$(eval __ndk_import_depth := $(__ndk_import_depth)x) \
$(eval __ndk_import_list := $(call set_insert,$(__ndk_import_list),$(__import_tag)))\
$(eval include $(__imported_path)/Android.mk)\
$(eval __ndk_import_depth := $(__ndk_import_depth:%x=%))\
,\
$(call __ndk_info,$(call local-makefile): Cannot find module with tag '$(__import_tag)' in import path)\
$(call __ndk_info,Are you sure your NDK_MODULE_PATH variable is properly defined ?)\
$(call __ndk_info,The following directories were searched:)\
$(for __import_dir,$(__ndk_import_dirs),\
$(call __ndk_info, $(__import_dir))\
)\
$(call __ndk_error,Aborting.)\
)\
)
# Only used for debugging
#
import-debug = \
$(info IMPORT DIRECTORIES:)\
$(foreach __dir,$(__ndk_import_dirs),\
$(info -- $(__dir))\
)\
#
# Module classes
#
NDK_MODULE_CLASSES :=
# Register a new module class
# $1: class name (e.g. STATIC_LIBRARY)
# $2: optional file prefix (e.g. 'lib')
# $3: optional file suffix (e.g. '.so')
#
module-class-register = \
$(eval NDK_MODULE_CLASSES += $1) \
$(eval NDK_MODULE_CLASS.$1.FILE_PREFIX := $2) \
$(eval NDK_MODULE_CLASS.$1.FILE_SUFFIX := $3) \
$(eval NDK_MODULE_CLASS.$1.INSTALLABLE := $(false)) \
# Same a module-class-register, for installable modules
#
# An installable module is one that will be copied to $PROJECT/libs/<abi>/
# during the NDK build.
#
# $1: class name
# $2: optional file prefix
# $3: optional file suffix
#
module-class-register-installable = \
$(call module-class-register,$1,$2,$3) \
$(eval NDK_MODULE_CLASS.$1.INSTALLABLE := $(true))
module-class-set-prebuilt = \
$(eval NDK_MODULE_CLASS.$1.PREBUILT := $(true))
# Returns $(true) if $1 is a valid/registered LOCAL_MODULE_CLASS value
#
module-class-check = $(call set_is_member,$(NDK_MODULE_CLASSES),$1)
# Returns $(true) if $1 corresponds to an installable module class
#
module-class-is-installable = $(if $(NDK_MODULE_CLASS.$1.INSTALLABLE),$(true),$(false))
# Returns $(true) if $1 corresponds to an installable module class
#
module-class-is-prebuilt = $(if $(NDK_MODULE_CLASS.$1.PREBUILT),$(true),$(false))
#
# Register valid module classes
#
# static libraries:
# <foo> -> lib<foo>.a by default
$(call module-class-register,STATIC_LIBRARY,lib,.a)
# shared libraries:
# <foo> -> lib<foo>.so
# a shared library is installable.
$(call module-class-register-installable,SHARED_LIBRARY,lib,.so)
# executable
# <foo> -> <foo>
# an executable is installable.
$(call module-class-register-installable,EXECUTABLE,,)
# prebuilt shared library
# <foo> -> <foo> (we assume it is already well-named)
# it is installable
$(call module-class-register-installable,PREBUILT_SHARED_LIBRARY,,)
$(call module-class-set-prebuilt,PREBUILT_SHARED_LIBRARY)
# prebuilt static library
# <foo> -> <foo> (we assume it is already well-named)
$(call module-class-register,PREBUILT_STATIC_LIBRARY,,)
$(call module-class-set-prebuilt,PREBUILT_STATIC_LIBRARY)
#
# C++ STL support
#
# The list of registered STL implementations we support
NDK_STL_LIST :=
# Used internally to register a given STL implementation, see below.
#
# $1: STL name as it appears in APP_STL (e.g. system)
# $2: STL module name (e.g. cxx-stl/system)
# $3: list of static libraries all modules will depend on
# $4: list of shared libraries all modules will depend on
#
ndk-stl-register = \
$(eval __ndk_stl := $(strip $1)) \
$(eval NDK_STL_LIST += $(__ndk_stl)) \
$(eval NDK_STL.$(__ndk_stl).IMPORT_MODULE := $(strip $2)) \
$(eval NDK_STL.$(__ndk_stl).STATIC_LIBS := $(strip $3)) \
$(eval NDK_STL.$(__ndk_stl).SHARED_LIBS := $(strip $4))
# Called to check that the value of APP_STL is a valid one.
# $1: STL name as it apperas in APP_STL (e.g. 'system')
#
ndk-stl-check = \
$(if $(call set_is_member,$(NDK_STL_LIST),$1),,\
$(call __ndk_info,Invalid APP_STL value: $1)\
$(call __ndk_info,Please use one of the following instead: $(NDK_STL_LIST))\
$(call __ndk_error,Aborting))
# Called before the top-level Android.mk is parsed to
# select the STL implementation.
# $1: STL name as it appears in APP_STL (e.g. system)
#
ndk-stl-select = \
$(call import-module,$(NDK_STL.$1.IMPORT_MODULE))
# Called after all Android.mk files are parsed to add
# proper STL dependencies to every C++ module.
# $1: STL name as it appears in APP_STL (e.g. system)
#
ndk-stl-add-dependencies = \
$(call modules-add-c++-dependencies,\
$(NDK_STL.$1.STATIC_LIBS),\
$(NDK_STL.$1.SHARED_LIBS))
#
#
# Register the 'system' STL implementation
#
$(call ndk-stl-register,\
system,\
cxx-stl/system,\
libstdc++,\
)
# Register the 'stlport_static' STL implementation
#
$(call ndk-stl-register,\
stlport_static,\
cxx-stl/stlport,\
stlport_static,\
)
# Register the 'stlport_shared' STL implementation
#
$(call ndk-stl-register,\
stlport_shared,\
cxx-stl/stlport,\
,\
stlport_shared\
)
# Register the 'gnustl_static' STL implementation
#
$(call ndk-stl-register,\
gnustl_static,\
cxx-stl/gnu-libstdc++,\
gnustl_static,\
\
)
$(call ndk-stl-register,\
gnustl_shared,\
cxx-stl/gnu-libstdc++,\
,\
gnustl_shared\
)
# Register the static version of the GAbi++ C++ runtime
#
$(call ndk-stl-register,\
gabi++_static,\
cxx-stl/gabi++,\
gabi++_static,\
)
# Register the shared version of the GAbi++ C++ runtime
#
$(call ndk-stl-register,\
gabi++_shared,\
cxx-stl/gabi++,\
gabi++_shared,\
)
# The 'none' APP_STL value corresponds to no C++ support at
# all. Used by some of the STLport and GAbi++ test projects.
#
$(call ndk-stl-register,\
none,\
cxx-stl/system,\
)