[apple/xnu.git] / makedefs / MakeInc.cmd

# -*- mode: makefile;-*-
#
# Copyright (C) 1999-2016 Apple Inc. All rights reserved.
#
# MakeInc.cmd contains command paths for use during
# the build, as well as make fragments and text
# strings that may be evaluated as utility functions.
#

#
# Commands for the build environment
#
##
# Verbosity
##
ifeq ($(RC_XBS),YES)
VERBOSE = YES
else
VERBOSE = NO
endif
ifeq ($(VERBOSE),YES)
_v =
_vstdout =
else
_v = @
_vstdout = > /dev/null
endif

VERBOSE_GENERATED_MAKE_FRAGMENTS = NO

ifeq ($(VERBOSE),YES)
	XCRUN = /usr/bin/xcrun -verbose
else
	XCRUN = /usr/bin/xcrun
endif

SDKROOT ?= macosx
HOST_SDKROOT ?= macosx

# SDKROOT may be passed as a shorthand like "iphoneos.internal". We
# must resolve these to a full path and override SDKROOT.

ifeq ($(SDKROOT_RESOLVED),)
export SDKROOT_RESOLVED := $(shell $(XCRUN) -sdk $(SDKROOT) -show-sdk-path)
ifeq ($(strip $(SDKROOT)_$(SDKROOT_RESOLVED)),/_)
export SDKROOT_RESOLVED := /
endif
endif
override SDKROOT = $(SDKROOT_RESOLVED)

ifeq ($(HOST_SDKROOT_RESOLVED),)
export HOST_SDKROOT_RESOLVED := $(shell $(XCRUN) -sdk $(HOST_SDKROOT) -show-sdk-path)
ifeq ($(strip $(HOST_SDKROOT_RESOLVED)),)
export HOST_SDKROOT_RESOLVED := /
endif
endif
override HOST_SDKROOT = $(HOST_SDKROOT_RESOLVED)

ifeq ($(PLATFORM),)
	export PLATFORMPATH := $(shell $(XCRUN) -sdk $(SDKROOT) -show-sdk-platform-path)
	export PLATFORM := $(shell echo $(PLATFORMPATH) | sed 's,^.*/\([^/]*\)\.platform$$,\1,')
	ifeq ($(PLATFORM),)
		export PLATFORM := MacOSX
	else ifeq ($(shell echo $(PLATFORM) | tr A-Z a-z),watchos)
		export PLATFORM := WatchOS
	endif
endif

ifeq ($(SDKVERSION),)
     export SDKVERSION := $(shell $(XCRUN) -sdk $(SDKROOT) -show-sdk-version)
endif

# CC/CXX get defined by make(1) by default, so we can't check them
# against the empty string to see if they haven't been set
ifeq ($(origin CC),default)
	export CC := $(shell $(XCRUN) -sdk $(SDKROOT) -find clang)
endif
ifeq ($(origin CXX),default)
	export CXX := $(shell $(XCRUN) -sdk $(SDKROOT) -find clang++)
endif
ifeq ($(MIG),)
	export MIG := $(shell $(XCRUN) -sdk $(SDKROOT) -find mig)
endif
ifeq ($(MIGCOM),)
	export MIGCOM := $(shell $(XCRUN) -sdk $(SDKROOT) -find migcom)
endif
ifeq ($(MIGCC),)
	export MIGCC := $(CC)
endif
ifeq ($(STRIP),)
	export STRIP := $(shell $(XCRUN) -sdk $(SDKROOT) -find strip)
endif
ifeq ($(LIPO),)
	export LIPO := $(shell $(XCRUN) -sdk $(SDKROOT) -find lipo)
endif
ifeq ($(LIBTOOL),)
	export LIBTOOL := $(shell $(XCRUN) -sdk $(SDKROOT) -find libtool)
endif
ifeq ($(NM),)
	export NM := $(shell $(XCRUN) -sdk $(SDKROOT) -find nm)
endif
ifeq ($(UNIFDEF),)
	export UNIFDEF := $(shell $(XCRUN) -sdk $(SDKROOT) -find unifdef)
endif
ifeq ($(DSYMUTIL),)
	export DSYMUTIL := $(shell $(XCRUN) -sdk $(SDKROOT) -find dsymutil)
endif
ifeq ($(CTFCONVERT),)
	export CTFCONVERT := $(shell $(XCRUN) -sdk $(SDKROOT) -find ctfconvert)
endif
ifeq ($(CTFMERGE),)
	export CTFMERGE :=  $(shell $(XCRUN) -sdk $(SDKROOT) -find ctfmerge)
endif
ifeq ($(CTFINSERT),)
	export CTFINSERT := $(shell $(XCRUN) -sdk $(SDKROOT) -find ctf_insert)
endif
ifeq ($(NMEDIT),)
	export NMEDIT := $(shell $(XCRUN) -sdk $(SDKROOT) -find nmedit)
endif

#
# Platform options
#
SUPPORTED_EMBEDDED_PLATFORMS := iPhoneOS iPhoneOSNano tvOS AppleTVOS WatchOS BridgeOS
SUPPORTED_SIMULATOR_PLATFORMS := iPhoneSimulator iPhoneNanoSimulator tvSimulator AppleTVSimulator WatchSimulator
SUPPORTED_PLATFORMS := MacOSX $(SUPPORTED_SIMULATOR_PLATFORMS) $(SUPPORTED_EMBEDDED_PLATFORMS)

# Platform-specific tools
ifneq ($(filter $(SUPPORTED_EMBEDDED_PLATFORMS),$(PLATFORM)),)
ifeq ($(EMBEDDED_DEVICE_MAP),)
	export EMBEDDED_DEVICE_MAP := $(shell $(XCRUN) -sdk $(SDKROOT) -find embedded_device_map)
endif
EDM_DBPATH ?= $(PLATFORMPATH)/usr/local/standalone/firmware/device_map.db
endif

# Scripts or tools we build ourselves
#
# setsegname - Rename segments in a Mach-O object file
# kextsymboltool - Create kext pseudo-kext Mach-O kexts binaries
# decomment - Strip out comments to detect whether a file is comments-only
# installfile - Atomically copy files, esp. when multiple architectures
#               are trying to install the same target header
# replacecontents - Write contents to a file and update modtime *only* if
#               contents differ
#
SEG_HACK = $(OBJROOT)/SETUP/setsegname/setsegname
KEXT_CREATE_SYMBOL_SET = $(OBJROOT)/SETUP/kextsymboltool/kextsymboltool
DECOMMENT = $(OBJROOT)/SETUP/decomment/decomment
NEWVERS = $(SRCROOT)/config/newvers.pl
INSTALL = $(OBJROOT)/SETUP/installfile/installfile
REPLACECONTENTS = $(OBJROOT)/SETUP/replacecontents/replacecontents
JSONCOMPILATIONDB = $(OBJROOT)/SETUP/json_compilation_db/json_compilation_db

# Standard BSD tools
RM = /bin/rm -f
RMDIR = /bin/rmdir
CP = /bin/cp
MV = /bin/mv
LN = /bin/ln -fs
CAT = /bin/cat
MKDIR = /bin/mkdir -p
CHMOD = /bin/chmod
FIND = /usr/bin/find
XARGS = /usr/bin/xargs
PAX = /bin/pax
BASENAME = /usr/bin/basename
DIRNAME = /usr/bin/dirname
TR = /usr/bin/tr
TOUCH = /usr/bin/touch
SLEEP = /bin/sleep
AWK = /usr/bin/awk
SED = /usr/bin/sed
ECHO = /bin/echo
PLUTIL = /usr/bin/plutil

#
# Command to generate host binaries. Intentionally not
# $(CC), which controls the target compiler
#
ifeq ($(HOST_OS_VERSION),)
	export HOST_OS_VERSION	:= $(shell sw_vers -productVersion)
endif
ifeq ($(HOST_CC),)
	export HOST_CC		:= $(shell $(XCRUN) -sdk $(HOST_SDKROOT) -find clang)
endif
ifeq ($(HOST_FLEX),)
	export HOST_FLEX	:= $(shell $(XCRUN) -sdk $(HOST_SDKROOT) -find flex)
endif
ifeq ($(HOST_BISON),)
	export HOST_BISON	:= $(shell $(XCRUN) -sdk $(HOST_SDKROOT) -find bison)
endif
ifeq ($(HOST_GM4),)
	export HOST_GM4		:= $(shell $(XCRUN) -sdk $(HOST_SDKROOT) -find gm4)
endif
ifeq ($(HOST_CODESIGN),)
	export HOST_CODESIGN	:= /usr/bin/codesign
endif
ifeq ($(HOST_CODESIGN_ALLOCATE),)
	export HOST_CODESIGN_ALLOCATE	:= $(shell $(XCRUN) -sdk $(HOST_SDKROOT) -find codesign_allocate)
endif

#
# The following variables are functions invoked with "call", and thus
# behave similarly to externally compiled commands
#

# $(1) is an expanded kernel config from a TARGET_CONFIGS_UC tuple
# $(2) is an expanded arch config from a TARGET_CONFIGS_UC tuple
# $(3) is an expanded machine config from a TARGET_CONFIGS_UC tuple
_function_create_build_configs_join = $(strip $(1))^$(strip $(2))^$(strip $(3))

# $(1) is an un-expanded kernel config from a TARGET_CONFIGS_UC tuple
# $(2) is an un-expanded arch config from a TARGET_CONFIGS_UC tuple
# $(3) is an un-expanded machine config from a TARGET_CONFIGS_UC tuple
_function_create_build_configs_do_expand =          $(call _function_create_build_configs_join, \
							   $(if $(filter DEFAULT,$(1)), \
								$(DEFAULT_KERNEL_CONFIG), \
								$(1) \
							    ), \
							   $(if $(filter DEFAULT,$(2)), \
								$(DEFAULT_ARCH_CONFIG), \
								$(2) \
							    ), \
							   $(if $(filter DEFAULT,$(3)), \
								$(if $(filter DEFAULT,$(2)), \
								     $(DEFAULT_$(DEFAULT_ARCH_CONFIG)_MACHINE_CONFIG), \
								     $(DEFAULT_$(strip $(2))_MACHINE_CONFIG) \
								), \
								$(3) \
							    ) \
						     )

# $(1) is an un-expanded TARGET_CONFIGS_UC list, which must be consumed
#      3 elements at a time
function_create_build_configs = $(sort \
					$(strip \
						 $(call _function_create_build_configs_do_expand, \
							$(word 1,$(1)), \
							$(word 2,$(1)), \
							$(word 3,$(1)), \
						  ) \
						 $(if $(word 4,$(1)), \
						      $(call function_create_build_configs, \
							     $(wordlist 4,$(words $(1)),$(1)) \
						       ), \
						  ) \
					  ) \
				   )

# Similar to build configs, but alias configs are a 4-tuple

# $(1) is an expanded kernel config from a TARGET_CONFIGS_ALIASES_UC tuple
# $(2) is an expanded arch config from a TARGET_CONFIGS_ALIASES_UC tuple
# $(3) is an expanded kernel machine config from a TARGET_CONFIGS_ALIASES_UC tuple
# $(4) is an expanded SoC platform config from a TARGET_CONFIGS_ALIASES_UC tuple,
#      which should be an alias of $(3)
_function_create_alias_configs_join = $(strip $(1))^$(strip $(2))^$(strip $(3))^$(strip $(4))

_function_create_alias_configs_do_expand =	    $(call _function_create_alias_configs_join, \
							   $(if $(filter DEFAULT,$(1)), \
							        $(DEFAULT_KERNEL_CONFIG), \
								$(1) \
							    ), \
							   $(if $(filter DEFAULT,$(2)), \
								$(DEFAULT_ARCH_CONFIG), \
								$(2) \
							    ), \
							   $(3), \
							   $(4) \
						     )

function_create_alias_configs = $(sort \
					$(strip \
						 $(call _function_create_alias_configs_do_expand, \
							$(word 1,$(1)), \
							$(word 2,$(1)), \
							$(word 3,$(1)), \
							$(word 4,$(1)), \
						  ) \
						 $(if $(word 5,$(1)), \
						      $(call function_create_alias_configs, \
							     $(wordlist 5,$(words $(1)),$(1)) \
						       ), \
						  ) \
					 ) \
				 )

# $(1) is a fully-expanded kernel config
# $(2) is a fully-expanded arch config
# $(3) is a fully-expanded machine config. "NONE" is not represented in the objdir path
function_convert_target_config_uc_to_objdir = $(if $(filter NONE,$(3)),$(strip $(1))_$(strip $(2)),$(strip $(1))_$(strip $(2))_$(strip $(3)))

# $(1) is a fully-expanded build config (like "RELEASE^X86_64^NONE")
function_convert_build_config_to_objdir = $(call function_convert_target_config_uc_to_objdir, \
						 $(word 1,$(subst ^, ,$(1))), \
						 $(word 2,$(subst ^, ,$(1))), \
						 $(word 3,$(subst ^, ,$(1))) \
					   )

# $(1) is a fully-expanded build config (like "RELEASE^X86_64^NONE")
function_extract_kernel_config_from_build_config  = $(word 1,$(subst ^, ,$(1)))
function_extract_arch_config_from_build_config    = $(word 2,$(subst ^, ,$(1)))
function_extract_machine_config_from_build_config = $(word 3,$(subst ^, ,$(1)))

# $(1) is an input word
# $(2) is a list of colon-separate potential substitutions like "FOO:BAR BAZ:QUX"
# $(3) is a fallback if no substitutions were made
function_substitute_word_with_replacement = $(strip $(if $(2),								\
							 $(if $(filter $(word 1,$(subst :, ,$(word 1,$(2)))),$(1)),	\
							      $(word 2,$(subst :, ,$(word 1,$(2)))),		\
							      $(call function_substitute_word_with_replacement,$(1),$(wordlist 2,$(words $(2)),$(2)),$(3))), \
							 $(3)								\
						     )									\
					     )

# You can't assign a variable to an empty space without these
# shenanigans
empty :=
space := $(empty) $(empty)

# Arithmetic
# $(1) is the number to increment
NUM32 = x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
increment = $(words x $(wordlist 1,$(1),$(NUM32)))
decrement = $(words $(wordlist 2,$(1),$(NUM32)))

# Create a sequence from 1 to $(1)
# F(N) = if N > 0: return F(N-1) + "N" else: return ""
sequence = $(if $(wordlist 1,$(1),$(NUM32)),$(call sequence,$(call decrement,$(1))) $(1),)

# Reverse a list of words in $(1)
reverse = $(if $(word 2,$(1)),$(call reverse,$(wordlist 2,$(words $(1)),$(1)))) $(word 1,$(1))

# vim: set ft=make:
Commit	Line	Data
39236c6e A	1	# -- mode: makefile;--
39236c6e A	2	#
39037602	3	# Copyright (C) 1999-2016 Apple Inc. All rights reserved.
39236c6e A	4	#
	5	# MakeInc.cmd contains command paths for use during
	6	# the build, as well as make fragments and text
	7	# strings that may be evaluated as utility functions.
	8	#
	9
1c79356b A	10	#
	11	# Commands for the build environment
	12	#
b0d623f7 A	13	##
	14	# Verbosity
	15	##
	16	ifeq ($(RC_XBS),YES)
	17	VERBOSE = YES
	18	else
	19	VERBOSE = NO
	20	endif
	21	ifeq ($(VERBOSE),YES)
	22	_v =
	23	_vstdout =
	24	else
	25	_v = @
	26	_vstdout = > /dev/null
	27	endif
1c79356b	28
fe8ab488 A	29	VERBOSE_GENERATED_MAKE_FRAGMENTS = NO
fe8ab488 A	30
b0d623f7	31	ifeq ($(VERBOSE),YES)
39236c6e	32	XCRUN = /usr/bin/xcrun -verbose
b0d623f7 A	33	else
	34	XCRUN = /usr/bin/xcrun
	35	endif
	36
d9a64523	37	SDKROOT ?= macosx
39236c6e	38	HOST_SDKROOT ?= macosx
316670eb A	39
	40	# SDKROOT may be passed as a shorthand like "iphoneos.internal". We
	41	# must resolve these to a full path and override SDKROOT.
	42
	43	ifeq ($(SDKROOT_RESOLVED),)
39236c6e A	44	export SDKROOT_RESOLVED := $(shell $(XCRUN) -sdk $(SDKROOT) -show-sdk-path)
	45	ifeq ($(strip $(SDKROOT)_$(SDKROOT_RESOLVED)),/_)
	46	export SDKROOT_RESOLVED := /
316670eb A	47	endif
	48	endif
	49	override SDKROOT = $(SDKROOT_RESOLVED)
b0d623f7	50
39236c6e A	51	ifeq ($(HOST_SDKROOT_RESOLVED),)
39236c6e A	52	export HOST_SDKROOT_RESOLVED := $(shell $(XCRUN) -sdk $(HOST_SDKROOT) -show-sdk-path)
d9a64523 A	53	ifeq ($(strip $(HOST_SDKROOT_RESOLVED)),)
	54	export HOST_SDKROOT_RESOLVED := /
	55	endif
39236c6e A	56	endif
	57	override HOST_SDKROOT = $(HOST_SDKROOT_RESOLVED)
	58
6d2010ae	59	ifeq ($(PLATFORM),)
39236c6e A	60	export PLATFORMPATH := $(shell $(XCRUN) -sdk $(SDKROOT) -show-sdk-platform-path)
39236c6e A	61	export PLATFORM := $(shell echo $(PLATFORMPATH) \| sed 's,^./\([^/]\)\.platform$$,\1,')
6d2010ae A	62	ifeq ($(PLATFORM),)
6d2010ae A	63	export PLATFORM := MacOSX
3e170ce0 A	64	else ifeq ($(shell echo $(PLATFORM) \| tr A-Z a-z),watchos)
3e170ce0 A	65	export PLATFORM := WatchOS
6d2010ae A	66	endif
	67	endif
	68
39236c6e A	69	ifeq ($(SDKVERSION),)
	70	export SDKVERSION := $(shell $(XCRUN) -sdk $(SDKROOT) -show-sdk-version)
	71	endif
	72
6d2010ae A	73	# CC/CXX get defined by make(1) by default, so we can't check them
	74	# against the empty string to see if they haven't been set
	75	ifeq ($(origin CC),default)
316670eb	76	export CC := $(shell $(XCRUN) -sdk $(SDKROOT) -find clang)
6d2010ae A	77	endif
6d2010ae A	78	ifeq ($(origin CXX),default)
316670eb	79	export CXX := $(shell $(XCRUN) -sdk $(SDKROOT) -find clang++)
6d2010ae A	80	endif
	81	ifeq ($(MIG),)
	82	export MIG := $(shell $(XCRUN) -sdk $(SDKROOT) -find mig)
	83	endif
39236c6e A	84	ifeq ($(MIGCOM),)
	85	export MIGCOM := $(shell $(XCRUN) -sdk $(SDKROOT) -find migcom)
	86	endif
b0d623f7	87	ifeq ($(MIGCC),)
6d2010ae	88	export MIGCC := $(CC)
b0d623f7	89	endif
6d2010ae A	90	ifeq ($(STRIP),)
	91	export STRIP := $(shell $(XCRUN) -sdk $(SDKROOT) -find strip)
	92	endif
	93	ifeq ($(LIPO),)
	94	export LIPO := $(shell $(XCRUN) -sdk $(SDKROOT) -find lipo)
	95	endif
	96	ifeq ($(LIBTOOL),)
	97	export LIBTOOL := $(shell $(XCRUN) -sdk $(SDKROOT) -find libtool)
	98	endif
	99	ifeq ($(NM),)
	100	export NM := $(shell $(XCRUN) -sdk $(SDKROOT) -find nm)
	101	endif
	102	ifeq ($(UNIFDEF),)
	103	export UNIFDEF := $(shell $(XCRUN) -sdk $(SDKROOT) -find unifdef)
	104	endif
6d2010ae A	105	ifeq ($(DSYMUTIL),)
	106	export DSYMUTIL := $(shell $(XCRUN) -sdk $(SDKROOT) -find dsymutil)
	107	endif
	108	ifeq ($(CTFCONVERT),)
	109	export CTFCONVERT := $(shell $(XCRUN) -sdk $(SDKROOT) -find ctfconvert)
	110	endif
	111	ifeq ($(CTFMERGE),)
	112	export CTFMERGE := $(shell $(XCRUN) -sdk $(SDKROOT) -find ctfmerge)
	113	endif
39236c6e A	114	ifeq ($(CTFINSERT),)
39236c6e A	115	export CTFINSERT := $(shell $(XCRUN) -sdk $(SDKROOT) -find ctf_insert)
6d2010ae A	116	endif
	117	ifeq ($(NMEDIT),)
	118	export NMEDIT := $(shell $(XCRUN) -sdk $(SDKROOT) -find nmedit)
	119	endif
b0d623f7	120
3e170ce0 A	121	#
	122	# Platform options
	123	#
5ba3f43e	124	SUPPORTED_EMBEDDED_PLATFORMS := iPhoneOS iPhoneOSNano tvOS AppleTVOS WatchOS BridgeOS
3e170ce0 A	125	SUPPORTED_SIMULATOR_PLATFORMS := iPhoneSimulator iPhoneNanoSimulator tvSimulator AppleTVSimulator WatchSimulator
	126	SUPPORTED_PLATFORMS := MacOSX $(SUPPORTED_SIMULATOR_PLATFORMS) $(SUPPORTED_EMBEDDED_PLATFORMS)
	127
6d2010ae	128	# Platform-specific tools
3e170ce0	129	ifneq ($(filter $(SUPPORTED_EMBEDDED_PLATFORMS),$(PLATFORM)),)
316670eb A	130	ifeq ($(EMBEDDED_DEVICE_MAP),)
	131	export EMBEDDED_DEVICE_MAP := $(shell $(XCRUN) -sdk $(SDKROOT) -find embedded_device_map)
	132	endif
5ba3f43e	133	EDM_DBPATH ?= $(PLATFORMPATH)/usr/local/standalone/firmware/device_map.db
6d2010ae A	134	endif
	135
	136	# Scripts or tools we build ourselves
fe8ab488 A	137	#
	138	# setsegname - Rename segments in a Mach-O object file
	139	# kextsymboltool - Create kext pseudo-kext Mach-O kexts binaries
	140	# decomment - Strip out comments to detect whether a file is comments-only
	141	# installfile - Atomically copy files, esp. when multiple architectures
	142	# are trying to install the same target header
	143	# replacecontents - Write contents to a file and update modtime only if
	144	# contents differ
	145	#
39236c6e A	146	SEG_HACK = $(OBJROOT)/SETUP/setsegname/setsegname
	147	KEXT_CREATE_SYMBOL_SET = $(OBJROOT)/SETUP/kextsymboltool/kextsymboltool
	148	DECOMMENT = $(OBJROOT)/SETUP/decomment/decomment
6d2010ae	149	NEWVERS = $(SRCROOT)/config/newvers.pl
39236c6e	150	INSTALL = $(OBJROOT)/SETUP/installfile/installfile
fe8ab488	151	REPLACECONTENTS = $(OBJROOT)/SETUP/replacecontents/replacecontents
3e170ce0	152	JSONCOMPILATIONDB = $(OBJROOT)/SETUP/json_compilation_db/json_compilation_db
1c79356b	153
6d2010ae	154	# Standard BSD tools
1c79356b	155	RM = /bin/rm -f
39236c6e	156	RMDIR = /bin/rmdir
1c79356b	157	CP = /bin/cp
b0d623f7	158	MV = /bin/mv
0c530ab8	159	LN = /bin/ln -fs
1c79356b A	160	CAT = /bin/cat
1c79356b A	161	MKDIR = /bin/mkdir -p
fe8ab488	162	CHMOD = /bin/chmod
2d21ac55	163	FIND = /usr/bin/find
316670eb	164	XARGS = /usr/bin/xargs
fe8ab488	165	PAX = /bin/pax
1c79356b	166	BASENAME = /usr/bin/basename
39236c6e	167	DIRNAME = /usr/bin/dirname
0b4e3aa0	168	TR = /usr/bin/tr
39236c6e	169	TOUCH = /usr/bin/touch
fe8ab488	170	SLEEP = /bin/sleep
39236c6e A	171	AWK = /usr/bin/awk
	172	SED = /usr/bin/sed
	173	ECHO = /bin/echo
	174	PLUTIL = /usr/bin/plutil
1c79356b	175
6d2010ae A	176	#
	177	# Command to generate host binaries. Intentionally not
	178	# $(CC), which controls the target compiler
	179	#
39236c6e A	180	ifeq ($(HOST_OS_VERSION),)
	181	export HOST_OS_VERSION := $(shell sw_vers -productVersion)
	182	endif
6d2010ae	183	ifeq ($(HOST_CC),)
39236c6e	184	export HOST_CC := $(shell $(XCRUN) -sdk $(HOST_SDKROOT) -find clang)
6d2010ae A	185	endif
	186	ifeq ($(HOST_FLEX),)
	187	export HOST_FLEX := $(shell $(XCRUN) -sdk $(HOST_SDKROOT) -find flex)
	188	endif
	189	ifeq ($(HOST_BISON),)
	190	export HOST_BISON := $(shell $(XCRUN) -sdk $(HOST_SDKROOT) -find bison)
	191	endif
39236c6e A	192	ifeq ($(HOST_GM4),)
	193	export HOST_GM4 := $(shell $(XCRUN) -sdk $(HOST_SDKROOT) -find gm4)
	194	endif
6d2010ae	195	ifeq ($(HOST_CODESIGN),)
39236c6e A	196	export HOST_CODESIGN := /usr/bin/codesign
	197	endif
	198	ifeq ($(HOST_CODESIGN_ALLOCATE),)
	199	export HOST_CODESIGN_ALLOCATE := $(shell $(XCRUN) -sdk $(HOST_SDKROOT) -find codesign_allocate)
6d2010ae A	200	endif
6d2010ae A	201
39236c6e A	202	#
	203	# The following variables are functions invoked with "call", and thus
	204	# behave similarly to externally compiled commands
	205	#
	206
	207	# $(1) is an expanded kernel config from a TARGET_CONFIGS_UC tuple
	208	# $(2) is an expanded arch config from a TARGET_CONFIGS_UC tuple
	209	# $(3) is an expanded machine config from a TARGET_CONFIGS_UC tuple
	210	_function_create_build_configs_join = $(strip $(1))^$(strip $(2))^$(strip $(3))
	211
	212	# $(1) is an un-expanded kernel config from a TARGET_CONFIGS_UC tuple
	213	# $(2) is an un-expanded arch config from a TARGET_CONFIGS_UC tuple
	214	# $(3) is an un-expanded machine config from a TARGET_CONFIGS_UC tuple
	215	_function_create_build_configs_do_expand = $(call _function_create_build_configs_join, \
	216	$(if $(filter DEFAULT,$(1)), \
39037602	217	$(DEFAULT_KERNEL_CONFIG), \
39236c6e A	218	$(1) \
	219	), \
	220	$(if $(filter DEFAULT,$(2)), \
39037602	221	$(DEFAULT_ARCH_CONFIG), \
39236c6e A	222	$(2) \
	223	), \
	224	$(if $(filter DEFAULT,$(3)), \
39037602 A	225	$(if $(filter DEFAULT,$(2)), \
39037602 A	226	$(DEFAULT_$(DEFAULT_ARCH_CONFIG)_MACHINE_CONFIG), \
39236c6e	227	$(DEFAULT_$(strip $(2))_MACHINE_CONFIG) \
39037602	228	), \
39236c6e A	229	$(3) \
	230	) \
	231	)
	232
	233	# $(1) is an un-expanded TARGET_CONFIGS_UC list, which must be consumed
	234	# 3 elements at a time
	235	function_create_build_configs = $(sort \
	236	$(strip \
39037602 A	237	$(call _function_create_build_configs_do_expand, \
	238	$(word 1,$(1)), \
	239	$(word 2,$(1)), \
	240	$(word 3,$(1)), \
39236c6e A	241	) \
	242	$(if $(word 4,$(1)), \
	243	$(call function_create_build_configs, \
	244	$(wordlist 4,$(words $(1)),$(1)) \
	245	), \
39236c6e A	246	) \
	247	) \
	248	)
	249
39037602 A	250	# Similar to build configs, but alias configs are a 4-tuple
	251
	252	# $(1) is an expanded kernel config from a TARGET_CONFIGS_ALIASES_UC tuple
	253	# $(2) is an expanded arch config from a TARGET_CONFIGS_ALIASES_UC tuple
	254	# $(3) is an expanded kernel machine config from a TARGET_CONFIGS_ALIASES_UC tuple
	255	# $(4) is an expanded SoC platform config from a TARGET_CONFIGS_ALIASES_UC tuple,
	256	# which should be an alias of $(3)
	257	_function_create_alias_configs_join = $(strip $(1))^$(strip $(2))^$(strip $(3))^$(strip $(4))
	258
	259	_function_create_alias_configs_do_expand = $(call _function_create_alias_configs_join, \
	260	$(if $(filter DEFAULT,$(1)), \
	261	$(DEFAULT_KERNEL_CONFIG), \
	262	$(1) \
	263	), \
	264	$(if $(filter DEFAULT,$(2)), \
	265	$(DEFAULT_ARCH_CONFIG), \
	266	$(2) \
	267	), \
	268	$(3), \
	269	$(4) \
	270	)
	271
	272	function_create_alias_configs = $(sort \
	273	$(strip \
	274	$(call _function_create_alias_configs_do_expand, \
	275	$(word 1,$(1)), \
	276	$(word 2,$(1)), \
	277	$(word 3,$(1)), \
	278	$(word 4,$(1)), \
	279	) \
	280	$(if $(word 5,$(1)), \
	281	$(call function_create_alias_configs, \
	282	$(wordlist 5,$(words $(1)),$(1)) \
	283	), \
	284	) \
	285	) \
	286	)
	287
39236c6e A	288	# $(1) is a fully-expanded kernel config
	289	# $(2) is a fully-expanded arch config
	290	# $(3) is a fully-expanded machine config. "NONE" is not represented in the objdir path
	291	function_convert_target_config_uc_to_objdir = $(if $(filter NONE,$(3)),$(strip $(1))_$(strip $(2)),$(strip $(1))_$(strip $(2))_$(strip $(3)))
	292
	293	# $(1) is a fully-expanded build config (like "RELEASE^X86_64^NONE")
	294	function_convert_build_config_to_objdir = $(call function_convert_target_config_uc_to_objdir, \
39037602	295	$(word 1,$(subst ^, ,$(1))), \
39236c6e A	296	$(word 2,$(subst ^, ,$(1))), \
	297	$(word 3,$(subst ^, ,$(1))) \
	298	)
	299
	300	# $(1) is a fully-expanded build config (like "RELEASE^X86_64^NONE")
	301	function_extract_kernel_config_from_build_config = $(word 1,$(subst ^, ,$(1)))
	302	function_extract_arch_config_from_build_config = $(word 2,$(subst ^, ,$(1)))
	303	function_extract_machine_config_from_build_config = $(word 3,$(subst ^, ,$(1)))
	304
	305	# $(1) is an input word
	306	# $(2) is a list of colon-separate potential substitutions like "FOO:BAR BAZ:QUX"
	307	# $(3) is a fallback if no substitutions were made
	308	function_substitute_word_with_replacement = $(strip $(if $(2), \
	309	$(if $(filter $(word 1,$(subst :, ,$(word 1,$(2)))),$(1)), \
	310	$(word 2,$(subst :, ,$(word 1,$(2)))), \
	311	$(call function_substitute_word_with_replacement,$(1),$(wordlist 2,$(words $(2)),$(2)),$(3))), \
	312	$(3) \
	313	) \
	314	)
	315
	316	# You can't assign a variable to an empty space without these
	317	# shenanigans
	318	empty :=
	319	space := $(empty) $(empty)
	320
	321	# Arithmetic
	322	# $(1) is the number to increment
39037602	323	NUM32 = x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
fe8ab488 A	324	increment = $(words x $(wordlist 1,$(1),$(NUM32)))
	325	decrement = $(words $(wordlist 2,$(1),$(NUM32)))
	326
	327	# Create a sequence from 1 to $(1)
	328	# F(N) = if N > 0: return F(N-1) + "N" else: return ""
	329	sequence = $(if $(wordlist 1,$(1),$(NUM32)),$(call sequence,$(call decrement,$(1))) $(1),)
	330
	331	# Reverse a list of words in $(1)
	332	reverse = $(if $(word 2,$(1)),$(call reverse,$(wordlist 2,$(words $(1)),$(1)))) $(word 1,$(1))
39236c6e	333
2d21ac55	334	# vim: set ft=make: