makedefs/MakeInc.def

   1 # -*- mode: makefile;-*-
   2 #
   3 # Copyright (C) 1999-2020 Apple Inc. All rights reserved.
   4 #
   5 # MakeInc.def contains global definitions for building,
   6 # linking, and installing files.
   7 #
   8
   9 #
  10 # Architecture Configuration options
  11 #
  12 SUPPORTED_ARCH_CONFIGS := X86_64 X86_64H ARM ARM64
  13
  14 #
  15 # Kernel Configuration options
  16 #
  17 SUPPORTED_KERNEL_CONFIGS = RELEASE DEVELOPMENT DEBUG PROFILE KASAN
  18
  19
  20 #
  21 # Machine Configuration options
  22 #
  23
  24 SUPPORTED_X86_64_MACHINE_CONFIGS = NONE
  25 SUPPORTED_X86_64H_MACHINE_CONFIGS = NONE
  26
  27 ifneq ($(findstring _Sim,$(RC_ProjectName)),)
  28 SUPPORTED_ARM_MACHINE_CONFIGS = NONE
  29 SUPPORTED_ARM64_MACHINE_CONFIGS = NONE
  30 else ifneq ($(findstring _host,$(RC_ProjectName)),)
  31 SUPPORTED_ARM_MACHINE_CONFIGS = NONE
  32 SUPPORTED_ARM64_MACHINE_CONFIGS = NONE
  33 else
  34 SUPPORTED_ARM_MACHINE_CONFIGS = T8002 T8004
  35 SUPPORTED_ARM64_MACHINE_CONFIGS = T7000 T7001 S8000 S8001 T8010 T8011 BCM2837 T8020 T8101 T8103
  36
  37 endif
  38
  39 #
  40 # Setup up *_LC variables during recursive invocations
  41 #
  42
  43 ifndef CURRENT_ARCH_CONFIG_LC
  44         export CURRENT_ARCH_CONFIG_LC   := $(shell printf "%s" "$(CURRENT_ARCH_CONFIG)" | $(TR) A-Z a-z)
  45 endif
  46
  47 ifndef CURRENT_KERNEL_CONFIG_LC
  48         export CURRENT_KERNEL_CONFIG_LC := $(shell printf "%s" "$(CURRENT_KERNEL_CONFIG)" | $(TR) A-Z a-z)
  49 endif
  50
  51 ifndef CURRENT_MACHINE_CONFIG_LC
  52         export CURRENT_MACHINE_CONFIG_LC := $(shell printf "%s" "$(CURRENT_MACHINE_CONFIG)" | $(TR) A-Z a-z)
  53 endif
  54
  55 #
  56 # Component List
  57 #
  58 COMPONENT_LIST  = osfmk bsd libkern iokit pexpert libsa security san
  59 COMPONENT       = $(if $(word 2,$(subst /, ,$(RELATIVE_SOURCE_PATH))),$(word 2,$(subst /, ,$(RELATIVE_SOURCE_PATH))),$(firstword $(subst /, ,$(RELATIVE_SOURCE_PATH))))
  60 COMPONENT_IMPORT_LIST = $(filter-out $(COMPONENT),$(COMPONENT_LIST))
  61
  62 MACHINE_FLAGS_ARM64_T7000 = -DARM64_BOARD_CONFIG_T7000
  63 MACHINE_FLAGS_ARM64_T7001 = -DARM64_BOARD_CONFIG_T7001
  64 MACHINE_FLAGS_ARM64_S8000 = -DARM64_BOARD_CONFIG_S8000
  65 MACHINE_FLAGS_ARM64_S8001 = -DARM64_BOARD_CONFIG_S8001
  66 MACHINE_FLAGS_ARM_T8002 = -DARM_BOARD_CONFIG_T8002
  67 MACHINE_FLAGS_ARM_T8004 = -DARM_BOARD_CONFIG_T8004
  68 MACHINE_FLAGS_ARM64_T8010 = -DARM64_BOARD_CONFIG_T8010 -mcpu=hurricane
  69 MACHINE_FLAGS_ARM64_T8011 = -DARM64_BOARD_CONFIG_T8011 -mcpu=hurricane
  70 MACHINE_FLAGS_ARM64_BCM2837 = -DARM64_BOARD_CONFIG_BCM2837
  71 MACHINE_FLAGS_ARM64_T8020 = -DARM64_BOARD_CONFIG_T8020 -mcpu=vortex
  72 MACHINE_FLAGS_ARM64_T8101 = -DARM64_BOARD_CONFIG_T8101 -mcpu=firestorm
  73 MACHINE_FLAGS_ARM64_T8103 = -DARM64_BOARD_CONFIG_T8103 -mcpu=firestorm
  74
  75
  76 #
  77 # Deployment target flag
  78 #
  79 ifeq ($(PLATFORM),MacOSX)
  80     DEPLOYMENT_TARGET_FLAGS = -mmacosx-version-min=$(SDKVERSION) -DXNU_TARGET_OS_OSX
  81     DEPLOYMENT_LINKER_FLAGS = -Wl,-macosx_version_min,$(SDKVERSION)
  82 else ifeq ($(PLATFORM),DriverKit)
  83     DEPLOYMENT_TARGET_FLAGS = -target x86_64-apple-driverkit$(SDKVERSION) -DXNU_TARGET_OS_OSX
  84     DEPLOYMENT_LINKER_FLAGS = -Wl,-target,x86_64-apple-driverkit$(SDKVERSION)
  85 else ifeq ($(PLATFORM),WatchOS)
  86     DEPLOYMENT_TARGET_FLAGS = -mwatchos-version-min=$(SDKVERSION) -DXNU_TARGET_OS_WATCH
  87     DEPLOYMENT_LINKER_FLAGS =
  88 else ifeq ($(PLATFORM),tvOS)
  89     DEPLOYMENT_TARGET_FLAGS = -mtvos-version-min=$(SDKVERSION) -DXNU_TARGET_OS_TV
  90     DEPLOYMENT_LINKER_FLAGS =
  91 else ifeq ($(PLATFORM),AppleTVOS)
  92     DEPLOYMENT_TARGET_FLAGS = -mtvos-version-min=$(SDKVERSION) -DXNU_TARGET_OS_TV
  93 else ifeq ($(PLATFORM),BridgeOS)
  94     DEPLOYMENT_TARGET_FLAGS = -mbridgeos-version-min=$(SDKVERSION) -DXNU_TARGET_OS_BRIDGE
  95     DEPLOYMENT_LINKER_FLAGS =
  96 else ifneq ($(filter $(SUPPORTED_EMBEDDED_PLATFORMS),$(PLATFORM)),)
  97     DEPLOYMENT_TARGET_FLAGS = -miphoneos-version-min=$(SDKVERSION) -DXNU_TARGET_OS_IOS
  98     DEPLOYMENT_LINKER_FLAGS = -Wl,-ios_version_min,$(SDKVERSION)
  99 else ifneq ($(filter $(SUPPORTED_SIMULATOR_PLATFORMS),$(PLATFORM)),)
 100     DEPLOYMENT_TARGET_FLAGS =
 101     DEPLOYMENT_LINKER_FLAGS =
 102 else
 103     DEPLOYMENT_TARGET_FLAGS =
 104     DEPLOYMENT_LINKER_FLAGS =
 105 endif
 106
 107 DEPLOYMENT_TARGET_DEFINES = -DPLATFORM_$(PLATFORM)
 108
 109
 110 ifneq ($(RC_ENABLE_PRODUCT_INFO_FILTER),)
 111 SEED_DEFINES += -DRC_ENABLE_XNU_PRODUCT_INFO_FILTER
 112 else
 113 SEED_DEFINES += -URC_ENABLE_XNU_PRODUCT_INFO_FILTER
 114 endif
 115
 116 #
 117 # Standard defines list
 118 #
 119 DEFINES = -DAPPLE -DKERNEL -DKERNEL_PRIVATE -DXNU_KERNEL_PRIVATE \
 120         -DPRIVATE -D__MACHO__=1 -Dvolatile=__volatile -DXNU_KERN_EVENT_DATA_IS_VLA \
 121         $(CONFIG_DEFINES) $(SEED_DEFINES)
 122
 123 # Enable caching with `make CCACHE=ccache`
 124 # This intentionally does not override $(CC) because that will confuse
 125 # utilities like mig.
 126 CCACHE ?=
 127
 128 #
 129 # Compiler command
 130 #
 131 KCC  = $(CCACHE) $(CC)
 132 KC++ = $(CCACHE) $(CXX)
 133
 134 GENASSYM_KCC = $(CCACHE) $(CC)
 135
 136 #
 137 # Compiler warning flags
 138 #
 139
 140 USE_WERROR := 1
 141 ifneq ($(BUILD_WERROR),)
 142 USE_WERROR := $(BUILD_WERROR)
 143 endif
 144
 145 ifeq ($(USE_WERROR),1)
 146 WERROR := -Werror
 147 endif
 148
 149 # Shared C/C++ warning flags
 150 # NOTE: order matters here.  -Wno-xxx goes before opt-in of ones we want
 151 WARNFLAGS_STD := \
 152         -Weverything \
 153         -Wno-pedantic \
 154         $(WERROR) \
 155         -Wno-bad-function-cast \
 156         -Wno-c++-compat \
 157         -Wno-c++98-compat \
 158         -Wno-conditional-uninitialized \
 159         -Wno-covered-switch-default \
 160         -Wno-disabled-macro-expansion \
 161         -Wno-documentation-unknown-command \
 162         -Wno-extra-semi-stmt \
 163         -Wno-format-non-iso \
 164         -Wno-format-nonliteral \
 165         -Wno-language-extension-token \
 166         -Wno-missing-variable-declarations \
 167         -Wno-packed \
 168         -Wno-padded \
 169         -Wno-partial-availability \
 170         -Wno-reserved-id-macro \
 171         -Wno-shift-sign-overflow \
 172         -Wno-switch-enum \
 173         -Wno-undef \
 174         -Wno-unused-macros \
 175         -Wno-used-but-marked-unused \
 176         -Wno-variadic-macros \
 177         -Wno-vla \
 178         -Wno-zero-length-array
 179
 180 # When a new clang has new warnings disable them here until the kernel is fixed.
 181 WARNFLAGS_STD := $(WARNFLAGS_STD) \
 182         -Wno-unknown-warning-option \
 183         -Wno-anon-enum-enum-conversion \
 184         -Wno-error=enum-enum-conversion \
 185         -Wno-error=c99-designator \
 186         -Wno-error=reorder-init-list
 187
 188 # Hand-written sign conversion diagnostics are resolved, but the
 189 # auto-generated ones need mig and iig to be updated to fix.  Disable the
 190 # diagnostic here until we've completed that:
 191 WARNFLAGS_STD := $(WARNFLAGS_STD) \
 192         -Wno-sign-compare \
 193         -Wno-sign-conversion
 194
 195 CWARNFLAGS_STD = \
 196         $(WARNFLAGS_STD)
 197
 198
 199
 200 # Can be overridden in Makefile.template or Makefile.$arch
 201 export CWARNFLAGS ?= $(CWARNFLAGS_STD)
 202
 203 define add_perfile_cflags
 204 $(1)_CWARNFLAGS_ADD += $2
 205 endef
 206
 207 define rm_perfile_cflags
 208 $(1)_CFLAGS_RM += $2
 209 endef
 210
 211 CXXWARNFLAGS_STD = \
 212         $(WARNFLAGS_STD) \
 213         -Wno-c++98-compat-pedantic \
 214         -Wno-exit-time-destructors \
 215         -Wno-global-constructors \
 216         -Wno-old-style-cast
 217
 218 # Can be overridden in Makefile.template or Makefile.$arch
 219 export CXXWARNFLAGS ?= $(CXXWARNFLAGS_STD)
 220
 221 define add_perfile_cxxflags
 222 $(1)_CXXWARNFLAGS_ADD += $2
 223 endef
 224
 225 #
 226 # Default ARCH_FLAGS, for use with compiler/linker/assembler/mig drivers
 227
 228 ARCH_FLAGS_X86_64         = -arch x86_64
 229 ARCH_FLAGS_X86_64H        = -arch x86_64h
 230
 231 ifneq ($(filter ARM ARM64,$(CURRENT_ARCH_CONFIG)),)
 232
 233 ifneq ($(findstring _Sim,$(RC_ProjectName)),)
 234 ARCH_FLAGS_ARM64          = -arch arm64e
 235 else ifneq ($(findstring _host,$(RC_ProjectName)),)
 236 ARCH_FLAGS_ARM64          = -arch arm64e
 237 else
 238
 239 ifndef ARCH_STRING_FOR_CURRENT_MACHINE_CONFIG
 240
 241 ifneq ($(EMBEDDED_DEVICE_MAP),)
 242 export ARCH_STRING_FOR_CURRENT_MACHINE_CONFIG := $(shell $(EMBEDDED_DEVICE_MAP) -db $(EDM_DBPATH) -query SELECT DISTINCT KernelMachOArchitecture FROM Targets WHERE KernelPlatform IS \"$(CURRENT_MACHINE_CONFIG_LC)\" LIMIT 1 || echo UNKNOWN )
 243 else
 244 # Without embdedded device map, use a default arch string
 245 export ARCH_STRING_FOR_CURRENT_MACHINE_CONFIG := $(shell echo $(CURRENT_ARCH_CONFIG) | tr A-Z a-z)
 246 ifneq ($(filter ARM64,$(CURRENT_ARCH_CONFIG)),)
 247 export ARCH_STRING_FOR_CURRENT_MACHINE_CONFIG := arm64e
 248 endif
 249 endif
 250 endif
 251
 252 #
 253 # This can have false negatives, and is used to avoid calling CTF when we'll build a static KC
 254 #
 255 ifndef WILL_BUILD_STATIC_KC
 256 ifneq ($(EMBEDDED_DEVICE_MAP),)
 257 export WILL_BUILD_STATIC_KC := $(shell $(EMBEDDED_DEVICE_MAP) -db $(EDM_DBPATH) \
 258                                 -query 'SELECT COUNT(*) != 0 FROM Targets WHERE KernelPlatform IS "$(CURRENT_MACHINE_CONFIG_LC)" \
 259                                         AND (KernelMachOArchitecture LIKE "arm64e" OR ProductType LIKE "iphone10,%")')
 260 else
 261 export WILL_BUILD_STATIC_KC := 0
 262 endif
 263 endif
 264
 265 BUILD_STATIC_LINK := 1
 266
 267 ARCH_FLAGS_ARM            = -arch $(ARCH_STRING_FOR_CURRENT_MACHINE_CONFIG)
 268 ARCH_FLAGS_ARM64          = -arch $(ARCH_STRING_FOR_CURRENT_MACHINE_CONFIG)
 269
 270 endif
 271
 272 else
 273 # non arm machine config string
 274 ifndef ARCH_STRING_FOR_CURRENT_MACHINE_CONFIG
 275 export ARCH_STRING_FOR_CURRENT_MACHINE_CONFIG := $(shell echo $(CURRENT_ARCH_CONFIG) | tr A-Z a-z)
 276 endif
 277
 278 endif
 279
 280 #
 281 # Default CFLAGS
 282 #
 283 ifdef RC_NONARCH_CFLAGS
 284 OTHER_CFLAGS = $(RC_NONARCH_CFLAGS)
 285 endif
 286
 287 #
 288 # Debug info
 289 #
 290 DSYMINFODIR     = Contents
 291 DSYMKGMACROSDIR = Contents/Resources
 292 DSYMLLDBMACROSDIR = Contents/Resources/Python
 293 DSYMDWARFDIR    = Contents/Resources/DWARF
 294
 295 DEBUG_CFLAGS := -g
 296 BUILD_DSYM := 1
 297
 298 #
 299 # We must not use -fno-keep-inline-functions, or it will remove the dtrace
 300 # probes from the kernel.
 301 #
 302 CFLAGS_GEN = $(DEBUG_CFLAGS) -nostdinc \
 303         -ferror-limit=10000 \
 304         -fno-builtin \
 305         -fno-common \
 306         -ftrivial-auto-var-init=zero \
 307         -enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang \
 308         -fsigned-bitfields \
 309         -fmerge-all-constants \
 310         -fno-c++-static-destructors \
 311         $(OTHER_CFLAGS)
 312
 313 CFLAGS_RELEASE  =
 314 CFLAGS_DEVELOPMENT      =
 315 CFLAGS_DEBUG    =
 316 CFLAGS_KASAN = $(CFLAGS_DEVELOPMENT)
 317 CFLAGS_PROFILE  =  -pg
 318
 319 CFLAGS_X86_64   = -Dx86_64 -DX86_64 -D__X86_64__ -DLP64 \
 320                                 -DPAGE_SIZE_FIXED -mkernel -msoft-float
 321
 322 CFLAGS_X86_64H = $(CFLAGS_X86_64)
 323
 324 CFLAGS_ARM      = -Darm -DARM -D__ARM__ -DPAGE_SIZE_FIXED \
 325                         -momit-leaf-frame-pointer -fno-strict-aliasing -D__API__=v4
 326
 327 LARGE_MEMORY_DEFINE=-UARM_LARGE_MEMORY
 328 ARM64_PLKSEG_ADDR  =0xfffffff004004000
 329 ARM64_LINK_ADDR    =0xfffffff007004000
 330
 331 # Use ARM_LARGE_MEMORY config for all MacOSX targets.
 332 ifneq ($(filter $(PLATFORM),MacOSX),)
 333 LARGE_MEMORY_DEFINE=-DARM_LARGE_MEMORY=1
 334 ARM64_PLKSEG_ADDR  =0xfffffe0004004000
 335 ARM64_LINK_ADDR    =0xfffffe0007004000
 336 endif
 337
 338
 339 CFLAGS_ARM64    = -Darm64 -DARM64 -D__ARM64__ -DLP64 -DPAGE_SIZE_FIXED -DVM_KERNEL_LINK_ADDRESS=$(ARM64_LINK_ADDR) \
 340                         $(LARGE_MEMORY_DEFINE) -momit-leaf-frame-pointer -fno-strict-aliasing -D__API__=v4 -mkernel
 341
 342 CFLAGS_RELEASEX86_64 = -O2
 343 CFLAGS_DEVELOPMENTX86_64 = -O2
 344 CFLAGS_KASANX86_64 = $(CFLAGS_DEVELOPMENTX86_64)
 345 # No space optimization for the DEBUG kernel for the benefit of gdb:
 346 CFLAGS_DEBUGX86_64 = -O0
 347 CFLAGS_PROFILEX86_64 = -O2
 348
 349 CFLAGS_RELEASEX86_64H = -O2
 350 CFLAGS_DEVELOPMENTX86_64H = -O2
 351 CFLAGS_KASANX86_64H = $(CFLAGS_DEVELOPMENTX86_64H)
 352 # No space optimization for the DEBUG kernel for the benefit of gdb:
 353 CFLAGS_DEBUGX86_64H = -O0
 354 CFLAGS_PROFILEX86_64H = -O2
 355
 356 CFLAGS_RELEASEARM = -O2
 357 CFLAGS_DEVELOPMENTARM = -O2
 358 CFLAGS_DEBUGARM = -O0
 359 CFLAGS_PROFILEARM = -O2
 360
 361 CFLAGS_RELEASEARM64 = -O2
 362 CFLAGS_DEVELOPMENTARM64 = -O2
 363 CFLAGS_KASANARM64 = $(CFLAGS_DEVELOPMENTARM64)
 364 CFLAGS_DEBUGARM64 = -O0
 365 CFLAGS_PROFILEARM64 = -O2
 366
 367 #
 368 # Sanitizers Support (KASan, UBSan)
 369 #
 370
 371
 372 SAN=0
 373
 374 # KASan support
 375 #
 376
 377 ifeq ($(CURRENT_KERNEL_CONFIG),KASAN)
 378 # KASan kernel config implicitly enables the KASan instrumentation.
 379 # Instrumentation for other sanitizers is enabled explicitly at build time.
 380 KASAN = 1
 381 endif
 382
 383 ifeq ($(KASAN),1)
 384 SAN=1
 385 BUILD_LTO=0
 386
 387 # Shadow map scale size. With KASAN_SCALE=N, the shadow memory consumes 1/2^N of
 388 # the virtual address space.
 389 KASAN_SCALE=3
 390
 391 KASAN_OFFSET_ARM64=0xe000000000000000
 392 #
 393 # To calculate the kasan offset, subtract the lowest KVA to sanitize, shifted right by 3 bits,
 394 # from the base address of the kasan shadow area, (e.g. solve the following equation:
 395 # OFFSET = {VA mapped by the first KASAN PML4 [Currently #494]} - (LOWEST_KVA >> 3)
 396 # OFFSET = (0ULL - (512GiB * (512 - 494))) - (LOWEST_SAN_KVA >> 3)
 397 # OFFSET = FFFFF70000000000 - ((0ULL - (512GiB * (512 - 496))) >> 3) [PML4 #496 is the first possible KVA]
 398 # OFFSET = FFFFF70000000000 - (FFFFF80000000000 >> 3)
 399 # OFFSET = DFFFF80000000000
 400 # ).
 401 KASAN_OFFSET_X86_64=0xdffff80000000000
 402 KASAN_OFFSET_X86_64H=$(KASAN_OFFSET_X86_64)
 403 KASAN_OFFSET=$($(addsuffix $(CURRENT_ARCH_CONFIG),KASAN_OFFSET_))
 404 KASAN_BLACKLIST=$(OBJROOT)/san/kasan-blacklist-$(CURRENT_ARCH_CONFIG_LC)
 405 CFLAGS_GEN += -DKASAN=1 -DKASAN_OFFSET=$(KASAN_OFFSET) -DKASAN_SCALE=$(KASAN_SCALE) -fsanitize=address \
 406                 -mllvm -asan-globals-live-support \
 407                 -mllvm -asan-mapping-offset=$(KASAN_OFFSET) \
 408                 -fsanitize-blacklist=$(KASAN_BLACKLIST)
 409
 410 endif
 411
 412 ifeq ($(UBSAN),1)
 413 SAN=1
 414 UBSAN_CHECKS = signed-integer-overflow shift pointer-overflow bounds object-size # non-fatal (calls runtime, can return)
 415 # UBSAN_CHECKS = undefined nullability unsigned-integer-overflow # everything
 416 UBSAN_CHECKS_FATAL =                                           # fatal (calls runtime, must not return)
 417 UBSAN_CHECKS_TRAP = vla-bound builtin                          # emit a trap instruction (no runtime support)
 418 UBSAN_DISABLED =
 419
 420 UBSAN_DISABLED += vptr function     # requires unsupported C++ runtime
 421 ifeq ($(KASAN),1)
 422 # UBSan alignment + KASan code size is too large
 423 # UBSan unreachable doesn't play nice with ASan (40723397)
 424 UBSAN_DISABLED += alignment unreachable
 425 endif
 426
 427 CFLAGS_GEN += -DUBSAN=1
 428 CFLAGS_GEN += $(foreach x,$(UBSAN_CHECKS) $(UBSAN_CHECKS_FATAL) $(UBSAN_CHECKS_TRAP),-fsanitize=$(x))
 429 CFLAGS_GEN += $(foreach x,$(UBSAN_CHECKS_FATAL),-fno-sanitize-recover=$(x))
 430 CFLAGS_GEN += $(foreach x,$(UBSAN_CHECKS_TRAP),-fsanitize-trap=$(x))
 431 CFLAGS_GEN += $(foreach x,$(UBSAN_DISABLED),-fno-sanitize=$(x))
 432 endif
 433
 434 ifeq ($(KSANCOV),1)
 435 # Enable SanitizerCoverage instrumentation in xnu
 436 SAN = 1
 437 KSANCOV_CFLAGS := -fsanitize-coverage=trace-pc-guard
 438 CFLAGS_GEN += $(KSANCOV_CFLAGS) -DKSANCOV=1
 439 endif
 440
 441 ifeq ($(SAN),1)
 442 CFLAGS_GEN += -fsanitize-blacklist=$(OBJROOT)/san/kasan-blacklist-$(CURRENT_ARCH_CONFIG_LC)
 443 endif
 444
 445
 446 CFLAGS  = $(CFLAGS_GEN) \
 447                   $($(addsuffix $(CURRENT_MACHINE_CONFIG),MACHINE_FLAGS_$(CURRENT_ARCH_CONFIG)_)) \
 448                   $($(addsuffix $(CURRENT_ARCH_CONFIG),ARCH_FLAGS_)) \
 449                   $($(addsuffix $(CURRENT_ARCH_CONFIG),CFLAGS_)) \
 450                   $($(addsuffix $(CURRENT_KERNEL_CONFIG),CFLAGS_)) \
 451                   $($(addsuffix $(CURRENT_ARCH_CONFIG), $(addsuffix $(CURRENT_KERNEL_CONFIG),CFLAGS_))) \
 452                   $(DEPLOYMENT_TARGET_FLAGS) \
 453                   $(DEPLOYMENT_TARGET_DEFINES) \
 454                   $(DEFINES)
 455
 456 #
 457 # Default C++ flags
 458 #
 459
 460 OTHER_CXXFLAGS  =
 461
 462 CXXFLAGS_GEN  = -std=gnu++1z -fsized-deallocation -fapple-kext $(OTHER_CXXFLAGS)
 463
 464 CXXFLAGS      = $(CXXFLAGS_GEN) \
 465                   $($(addsuffix $(CURRENT_ARCH_CONFIG),CXXFLAGS_)) \
 466                   $($(addsuffix $(CURRENT_KERNEL_CONFIG),CXXFLAGS_))
 467
 468 #
 469 # Assembler command
 470 #
 471 AS      = $(CCACHE) $(CC)
 472 S_KCC   = $(CC)
 473
 474 #
 475 # Default SFLAGS
 476 #
 477 SFLAGS_GEN = -D__ASSEMBLER__ -DASSEMBLER $(OTHER_CFLAGS)
 478
 479 SFLAGS_RELEASE  =
 480 SFLAGS_DEVELOPMENT      =
 481 SFLAGS_KASAN = $(SFLAGS_DEVELOPMENT) -DKASAN=1
 482 SFLAGS_DEBUG    =
 483 SFLAGS_PROFILE  =
 484
 485 SFLAGS_X86_64   = $(CFLAGS_X86_64)
 486 SFLAGS_X86_64H  = $(CFLAGS_X86_64H)
 487 SFLAGS_ARM      = $(CFLAGS_ARM)
 488 SFLAGS_ARM64    = $(CFLAGS_ARM64)
 489
 490 SFLAGS  = $(SFLAGS_GEN) \
 491                   $($(addsuffix $(CURRENT_MACHINE_CONFIG),MACHINE_FLAGS_$(CURRENT_ARCH_CONFIG)_)) \
 492                   $($(addsuffix $(CURRENT_ARCH_CONFIG),ARCH_FLAGS_)) \
 493                   $($(addsuffix $(CURRENT_ARCH_CONFIG),SFLAGS_)) \
 494                   $($(addsuffix $(CURRENT_KERNEL_CONFIG),SFLAGS_)) \
 495                   $(DEPLOYMENT_TARGET_FLAGS) \
 496                   $(DEPLOYMENT_TARGET_DEFINES) \
 497                   $(DEFINES)
 498
 499 #
 500 # Linker command
 501 #
 502 LD      = $(KC++) -nostdlib
 503
 504 #
 505 # Default LDFLAGS
 506 #
 507 # Availability of DWARF allows DTrace CTF (compressed type format) to be constructed.
 508 # ctf_insert creates the CTF section.  It needs reserved padding in the
 509 # headers for the load command segment and the CTF section structures.
 510 #
 511 LDFLAGS_KERNEL_GEN = \
 512         -nostdlib \
 513         -fapple-kext \
 514         -Wl,-e,__start \
 515         -Wl,-sectalign,__TEXT,__text,0x1000 \
 516         -Wl,-sectalign,__DATA,__percpu,0x80 \
 517         -Wl,-sectalign,__DATA,__common,0x1000 \
 518         -Wl,-sectalign,__DATA,__bss,0x1000 \
 519         -Wl,-sectcreate,__PRELINK_TEXT,__text,/dev/null \
 520         -Wl,-segprot,__PRELINK_TEXT,r-x,r-x \
 521         -Wl,-sectcreate,__PRELINK_INFO,__info,/dev/null \
 522         -Wl,-new_linker \
 523         -Wl,-pagezero_size,0x0 \
 524         -Wl,-version_load_command \
 525         -Wl,-function_starts \
 526         -Wl,-headerpad,152
 527
 528 # LDFLAGS_KERNEL_SDK    = -L$(SDKROOT)/usr/local/lib/kernel -lfirehose_kernel
 529 LDFLAGS_KERNEL_SDK      = -L$(SDKROOT)/usr/local/lib/kernel
 530
 531 LDFLAGS_KERNEL_RELEASE  =
 532 LDFLAGS_KERNEL_DEVELOPMENT     =
 533 LDFLAGS_KERNEL_KASAN = $(LDFLAGS_KERNEL_DEVELOPMENT)
 534 LDFLAGS_KERNEL_DEBUG    =
 535 LDFLAGS_KERNEL_PROFILE  =
 536
 537 # KASLR static slide config:
 538 ifndef SLIDE
 539 SLIDE=0x00
 540 endif
 541 KERNEL_MIN_ADDRESS      = 0xffffff8000000000
 542 KERNEL_BASE_OFFSET      = 0x100000
 543 KERNEL_STATIC_SLIDE     = $(shell printf "0x%016x" \
 544                           $$[ $(SLIDE) << 21 ])
 545 KERNEL_STATIC_BASE      = $(shell printf "0x%016x" \
 546                           $$[ $(KERNEL_MIN_ADDRESS) + $(KERNEL_BASE_OFFSET) ])
 547 KERNEL_HIB_SECTION_BASE = $(shell printf "0x%016x" \
 548                           $$[ $(KERNEL_STATIC_BASE) + $(KERNEL_STATIC_SLIDE) ])
 549 KERNEL_TEXT_BASE        = $(shell printf "0x%016x" \
 550                           $$[ $(KERNEL_HIB_SECTION_BASE) + 0x100000 ])
 551
 552 LDFLAGS_KERNEL_RELEASEX86_64 = \
 553         -Wl,-pie \
 554         -Wl,-segaddr,__HIB,$(KERNEL_HIB_SECTION_BASE) \
 555         -Wl,-image_base,$(KERNEL_TEXT_BASE) \
 556         -Wl,-seg_page_size,__TEXT,0x200000 \
 557         -Wl,-sectalign,__HIB,__bootPT,0x1000 \
 558         -Wl,-sectalign,__HIB,__desc,0x1000 \
 559         -Wl,-sectalign,__HIB,__data,0x1000 \
 560         -Wl,-sectalign,__HIB,__text,0x1000 \
 561         -Wl,-sectalign,__HIB,__const,0x1000 \
 562         -Wl,-sectalign,__HIB,__bss,0x1000 \
 563         -Wl,-sectalign,__HIB,__common,0x1000 \
 564         -Wl,-sectalign,__HIB,__llvm_prf_cnts,0x1000 \
 565         -Wl,-sectalign,__HIB,__llvm_prf_names,0x1000 \
 566         -Wl,-sectalign,__HIB,__llvm_prf_data,0x1000 \
 567         -Wl,-sectalign,__HIB,__textcoal_nt,0x1000 \
 568         -Wl,-sectalign,__HIB,__cstring,0x1000 \
 569         -Wl,-rename_section,__DATA,__const,__DATA_CONST,__const \
 570         -Wl,-segprot,__DATA_CONST,r--,r-- \
 571         -Wl,-no_zero_fill_sections \
 572         $(LDFLAGS_NOSTRIP_FLAG)
 573
 574 ifeq ($(SAN),1)
 575 LDFLAGS_KERNEL_RELEASEX86_64 += \
 576         -Wl,-sectalign,__HIB,__cstring,0x1000
 577 endif
 578
 579 ifeq ($(KSANCOV),1)
 580 LDFLAGS_KERNEL_RELEASEX86_64 += \
 581         -Wl,-sectalign,__HIB,__sancov_guards,0x1000 \
 582         -Wl,-sectalign,__HIB,__sancov_pcs,0x1000
 583 endif
 584
 585 # Define KERNEL_BASE_OFFSET so known at compile time:
 586 CFLAGS_X86_64 += -DKERNEL_BASE_OFFSET=$(KERNEL_BASE_OFFSET)
 587 CFLAGS_X86_64H += -DKERNEL_BASE_OFFSET=$(KERNEL_BASE_OFFSET)
 588
 589 LDFLAGS_KERNEL_DEBUGX86_64 = $(LDFLAGS_KERNEL_RELEASEX86_64)
 590 LDFLAGS_KERNEL_DEVELOPMENTX86_64 = $(LDFLAGS_KERNEL_RELEASEX86_64)
 591 LDFLAGS_KERNEL_KASANX86_64 = $(LDFLAGS_KERNEL_DEVELOPMENTX86_64) \
 592         -Wl,-sectalign,__HIB,__asan_globals,0x1000 \
 593         -Wl,-sectalign,__HIB,__asan_liveness,0x1000 \
 594         -Wl,-sectalign,__HIB,__mod_term_func,0x1000 \
 595         -Wl,-rename_section,__HIB,__mod_init_func,__NULL,__mod_init_func \
 596         -Wl,-rename_section,__HIB,__eh_frame,__NULL,__eh_frame
 597 LDFLAGS_KERNEL_PROFILEX86_64 = $(LDFLAGS_KERNEL_RELEASEX86_64)
 598
 599 LDFLAGS_KERNEL_RELEASEX86_64H = $(LDFLAGS_KERNEL_RELEASEX86_64)
 600 LDFLAGS_KERNEL_DEBUGX86_64H = $(LDFLAGS_KERNEL_RELEASEX86_64H)
 601 LDFLAGS_KERNEL_DEVELOPMENTX86_64H = $(LDFLAGS_KERNEL_RELEASEX86_64H)
 602 LDFLAGS_KERNEL_KASANX86_64H = $(LDFLAGS_KERNEL_KASANX86_64)
 603 LDFLAGS_KERNEL_PROFILEX86_64H = $(LDFLAGS_KERNEL_RELEASEX86_64H)
 604
 605 # We preload ___udivmoddi4 in order to work around an issue with building
 606 # LTO on armv7.
 607 LDFLAGS_KERNEL_GENARM = \
 608         -Wl,-pie \
 609         -Wl,-static \
 610         -Wl,-image_base,0x80001000 \
 611         -Wl,-sectalign,__DATA,__const,0x1000 \
 612         -Wl,-u,___udivmoddi4
 613
 614 LDFLAGS_KERNEL_RELEASEARM     = \
 615         $(LDFLAGS_KERNEL_GENARM) \
 616         $(LDFLAGS_KERNEL_STRIP_LTO)
 617
 618 LDFLAGS_KERNEL_ONLY_CONFIG_RELEASEARM     = \
 619         -Wl,-exported_symbols_list,$(TARGET)/all-kpi.exp
 620
 621 LDFLAGS_KERNEL_DEVELOPMENTARM     = \
 622         $(LDFLAGS_KERNEL_GENARM) \
 623         $(LDFLAGS_NOSTRIP_FLAG)
 624
 625 LDFLAGS_KERNEL_ONLY_CONFIG_DEVELOPMENTARM =
 626
 627 LDFLAGS_KERNEL_DEBUGARM = $(LDFLAGS_KERNEL_DEVELOPMENTARM)
 628 LDFLAGS_KERNEL_ONLY_CONFIG_DEBUGARM = $(LDFLAGS_KERNEL_ONLY_CONFIG_DEVELOPMENTARM)
 629
 630 # Offset image base by page to have iBoot load kernel TEXT correctly.
 631 # First page is used for various purposes : sleep token, reset vector.
 632 # We also need a 32MB offset, as this is the minimum block mapping size
 633 # for a 16KB page runtime, and we wish to use the first virtual block
 634 # to map the low globals page.  We also need another 4MB to account for
 635 # the address space reserved by L4 (because the reservation is not a
 636 # multiple of the block size in alignment/length, we will implictly map
 637 # it with our block mapping, and we therefore must reflect that the
 638 # first 4MB of the block mapping for xnu do not belong to xnu).
 639 # For the moment, kaliber has a unique memory layout (monitor at the top
 640 # of memory).  Support this by breaking 16KB on other platforms and
 641 # mandating 32MB alignment. Image base (i.e. __TEXT) must be 16KB
 642 # aligned since ld64 will link with 16KB alignment for ARM64.
 643 #
 644 # We currently offset by an additional 32MB in order to reclaim memory.
 645 # We need a dedicated virtual page for the low globals.  Our bootloader
 646 # may have a significant chunk of memory (up to an L2 entry in size)
 647 # that lies before the kernel.  The addition 32MB of virtual padding
 648 # ensures that we have enough virtual address space to map all of that
 649 # memory as part of the V-to-P mapping.
 650 # 23355738 - put __PRELINK_TEXT first. We reserve enough room
 651 # for 0x0000000003000000 = 48MB of kexts
 652 #
 653 # 0xfffffff000000000 (32MB range for low globals)
 654 # 0xfffffff002000000 (32MB range to allow for large page physical slide)
 655 # 0xfffffff004000000 (16KB range to reserve the first available page)
 656 # 0xfffffff004004000 (48MB range for kexts)
 657 # 0xfffffff007004000 (Start of xnu proper).
 658 LDFLAGS_KERNEL_GENARM64 = \
 659         -Wl,-pie \
 660         -Wl,-static \
 661         -Wl,-segaddr,__PRELINK_TEXT,$(ARM64_PLKSEG_ADDR) \
 662         -Wl,-image_base,$(ARM64_LINK_ADDR) \
 663         \
 664         -Wl,-rename_section,__HIB,__text,__TEXT_EXEC,__hib_text \
 665         \
 666         -Wl,-rename_section,__HIB,__const,__DATA_CONST,__hib_const \
 667         -Wl,-rename_section,__HIB,__cstring,__DATA_CONST,__hib_const \
 668         -Wl,-rename_section,__HIB,__literal8,__DATA_CONST,__hib_const \
 669         -Wl,-rename_section,__HIB,__literal16,__DATA_CONST,__hib_const \
 670         \
 671         -Wl,-rename_segment,__HIB,__HIBDATA \
 672         \
 673         -Wl,-sectalign,__DATA,__const,0x4000 \
 674         -Wl,-sectalign,__DATA,__data,0x4000 \
 675         -Wl,-rename_section,__DATA,__mod_init_func,__DATA_CONST,__mod_init_func \
 676         -Wl,-rename_section,__DATA,__mod_term_func,__DATA_CONST,__mod_term_func \
 677         -Wl,-rename_section,__DATA,__auth_ptr,__DATA_CONST,__auth_ptr \
 678         -Wl,-rename_section,__DATA,__auth_got,__DATA_CONST,__auth_got \
 679         -Wl,-rename_section,__DATA,__const,__DATA_CONST,__const \
 680         -Wl,-segprot,__DATA_CONST,r--,r-- \
 681         -Wl,-rename_section,__TEXT,__text,__TEXT_EXEC,__text \
 682         -Wl,-rename_section,__TEXT,__stubs,__TEXT_EXEC,__stubs \
 683         -Wl,-sectcreate,"__PLK_TEXT_EXEC",__text,/dev/null \
 684         -Wl,-sectcreate,__PRELINK_DATA,__data,/dev/null \
 685         -Wl,-sectcreate,"__PLK_DATA_CONST",__data,/dev/null \
 686         -Wl,-sectcreate,"__PLK_LLVM_COV",__llvm_covmap,/dev/null \
 687         -Wl,-sectcreate,"__PLK_LINKEDIT",__data,/dev/null
 688
 689 LDFLAGS_KERNEL_SEGARM64 = \
 690         -Wl,-rename_section,__PPLDATA,__const,__PPLDATA_CONST,__const \
 691         -Wl,-segment_order,__TEXT:__DATA_CONST:__LINKEDIT:__TEXT_EXEC:__PPLTEXT:__PPLTRAMP:__PPLDATA_CONST:__LASTDATA_CONST:__LAST:__PPLDATA:__KLD:__DATA:__HIBDATA:__BOOTDATA \
 692         -Wl,-segprot,__PPLTEXT,r-x,r-x  -Wl,-segprot,__PPLTRAMP,r-x,r-x -Wl,-segprot,__PPLDATA_CONST,r--,r-- -Wl,-segprot,__LASTDATA_CONST,r--,r-- -Wl,-segprot,__LAST,r-x,r-x
 693
 694 LDFLAGS_KERNEL_RELEASEARM64     = \
 695         $(LDFLAGS_KERNEL_GENARM64) \
 696         $(LDFLAGS_KERNEL_SEGARM64) \
 697         $(LDFLAGS_KERNEL_STRIP_LTO)
 698
 699 LDFLAGS_KERNEL_ONLY_CONFIG_RELEASEARM64     = \
 700         -Wl,-exported_symbols_list,$(TARGET)/all-kpi.exp
 701
 702 LDFLAGS_KERNEL_DEVELOPMENTARM64     = \
 703         $(LDFLAGS_KERNEL_GENARM64) \
 704         $(LDFLAGS_KERNEL_SEGARM64) \
 705         $(LDFLAGS_NOSTRIP_FLAG)
 706
 707 LDFLAGS_KERNEL_ONLY_CONFIG_DEVELOPMENTARM64 =
 708
 709 LDFLAGS_KERNEL_KASANARM64 = $(LDFLAGS_KERNEL_DEVELOPMENTARM64)
 710 LDFLAGS_KERNEL_DEBUGARM64 = $(LDFLAGS_KERNEL_DEVELOPMENTARM64)
 711
 712 LDFLAGS_KERNEL_ONLY_CONFIG_KASANARM64 = $(LDFLAGS_KERNEL_ONLY_CONFIG_DEVELOPMENTARM64)
 713 LDFLAGS_KERNEL_ONLY_CONFIG_DEBUGARM64 = $(LDFLAGS_KERNEL_ONLY_CONFIG_DEVELOPMENTARM64)
 714
 715 #
 716 # arm64e specific linker flags that should be used only when linking the kernel
 717 # (and not the static kernel cache / kcgen)
 718 #
 719 LDFLAGS_KERNEL_ONLY_SUBARCH_arm64e = \
 720         -Wl,-add_split_seg_info \
 721         -Wl,-kernel
 722
 723 LDFLAGS_KERNEL_ONLY_SUBARCH_x86_64 = \
 724         -Wl,-add_split_seg_info \
 725         -Wl,-kernel
 726 LDFLAGS_KERNEL_ONLY_SUBARCH_x86_64h = $(LDFLAGS_KERNEL_ONLY_SUBARCH_x86_64)
 727
 728 LDFLAGS_KERNEL  = $(LDFLAGS_KERNEL_GEN) \
 729                   $(LDFLAGS_KERNEL_SDK) \
 730                   $($(addsuffix $(CURRENT_ARCH_CONFIG),ARCH_FLAGS_)) \
 731                   $($(addsuffix $(CURRENT_ARCH_CONFIG),LDFLAGS_KERNEL_)) \
 732                   $($(addsuffix $(CURRENT_KERNEL_CONFIG),LDFLAGS_KERNEL_)) \
 733                   $($(addsuffix $(CURRENT_ARCH_CONFIG), $(addsuffix $(CURRENT_KERNEL_CONFIG),LDFLAGS_KERNEL_))) \
 734                   $(DEPLOYMENT_TARGET_FLAGS)
 735
 736 LDFLAGS_KERNEL_ONLY  +=   \
 737                   $($(addsuffix $(CURRENT_ARCH_CONFIG), $(addsuffix $(CURRENT_KERNEL_CONFIG),LDFLAGS_KERNEL_ONLY_CONFIG_))) \
 738                   $($(addsuffix $(ARCH_STRING_FOR_CURRENT_MACHINE_CONFIG),LDFLAGS_KERNEL_ONLY_SUBARCH_)) \
 739                   -Wl,-alias_list,$(TARGET)/all-alias.exp \
 740                   -Wl,-sectcreate,__LINKINFO,__symbolsets,$(TARGET)/symbolsets.plist -Wl,-segprot,__LINKINFO,r--,r--
 741
 742 #
 743 # Default runtime libraries to be linked with the kernel
 744 #
 745 LD_KERNEL_LIBS     = -lcc_kext
 746 LD_KERNEL_ARCHIVES = $(LDFLAGS_KERNEL_SDK) -lfirehose_kernel
 747
 748 # Link opensource binary library
 749 ifneq ($(filter T8020 T8020 T8101 T8101,$(CURRENT_MACHINE_CONFIG)),)
 750 LDFLAGS_KERNEL_ONLY += -rdynamic -Wl,-force_load,$(KDKROOT)/System/Library/KernelSupport/lib$(CURRENT_MACHINE_CONFIG).os.$(CURRENT_KERNEL_CONFIG).a
 751 endif
 752
 753 #
 754 # DTrace support
 755 #
 756 ifndef DO_CTFMERGE
 757 DO_CTFMERGE := 1
 758 ifeq ($(CURRENT_KERNEL_CONFIG),RELEASE)
 759 ifneq ($(PLATFORM),MacOSX)
 760 DO_CTFMERGE := 0
 761 endif
 762 endif
 763 ifneq ($(CURRENT_KERNEL_CONFIG),KASAN)
 764 ifneq ($(PLATFORM),MacOSX)
 765 ifeq ($(WILL_BUILD_STATIC_KC),1)
 766 DO_CTFMERGE := 0
 767 endif
 768 endif
 769 endif
 770 endif # DO_CTFMERGE
 771
 772
 773 #
 774 # Default INCFLAGS
 775 #
 776 INCFLAGS_IMPORT = $(patsubst %, -I$(OBJROOT)/EXPORT_HDRS/%, $(COMPONENT_IMPORT_LIST))
 777 INCFLAGS_EXTERN = -I$(SRCROOT)/EXTERNAL_HEADERS
 778 INCFLAGS_GEN    = -I$(SRCROOT)/$(COMPONENT) -I$(OBJROOT)/EXPORT_HDRS/$(COMPONENT)
 779 INCFLAGS_LOCAL  = -I.
 780 INCFLAGS_SDK    = -I$(SDKROOT)/usr/local/include/kernel
 781
 782 INCFLAGS        = $(INCFLAGS_LOCAL) $(INCFLAGS_GEN) $(INCFLAGS_IMPORT) $(INCFLAGS_EXTERN) $(INCFLAGS_MAKEFILE) $(INCFLAGS_SDK)
 783
 784 #
 785 # Default MIGFLAGS
 786 #
 787 MIGFLAGS        = $(DEFINES) $(INCFLAGS) -novouchers $($(addsuffix $(CURRENT_ARCH_CONFIG),CFLAGS_)) $($(addsuffix $(CURRENT_ARCH_CONFIG),ARCH_FLAGS_)) \
 788                 $(DEPLOYMENT_TARGET_FLAGS)
 789
 790 # Support for LLVM Profile Guided Optimization (PGO)
 791
 792 ifeq ($(BUILD_PROFILE),1)
 793 CFLAGS_GEN += -fprofile-instr-generate -DPROFILE
 794 CXXFLAGS_GEN += -fprofile-instr-generate -DPROFILE
 795 endif
 796
 797 ifdef USE_PROFILE
 798 CFLAGS_GEN += -fprofile-instr-use=$(USE_PROFILE)
 799 CXXFLAGS_GEN += -fprofile-instr-use=$(USE_PROFILE)
 800 LDFLAGS_KERNEL_GEN += -fprofile-instr-use=$(USE_PROFILE)
 801
 802 CFLAGS_GEN += -Wno-error=profile-instr-out-of-date
 803 endif
 804
 805 #
 806 # Support for LLVM Link Time Optimization (LTO)
 807 #
 808 # LTO can be explicitly enabled or disabled with BUILD_LTO=1|0
 809 # and defaults to enabled except for DEBUG kernels
 810 #
 811 # CFLAGS_NOLTO_FLAG is needed on a per-file basis (for files
 812 # that deal poorly with LTO, or files that must be machine
 813 # code *.o files for xnu to build (i.e, setsegname runs on
 814 # them).
 815 #
 816 # LDFLAGS_NOSTRIP_FLAG is used to support configurations that
 817 # do not utilize an export list.  For these configs to build,
 818 # we need to prevent the LTO logic from dead stripping them.
 819
 820 LTO_ENABLED_RELEASE = 1
 821 LTO_ENABLED_DEVELOPMENT = 1
 822 LTO_ENABLED_DEBUG = 0
 823 LTO_ENABLED_KASAN = 0
 824
 825 ifneq ($(BUILD_LTO),)
 826 USE_LTO = $(BUILD_LTO)
 827 else
 828 USE_LTO = $(LTO_ENABLED_$(CURRENT_KERNEL_CONFIG))
 829 endif
 830
 831 ifeq ($(USE_LTO),1)
 832 CFLAGS_GEN      += -flto
 833 CXXFLAGS_GEN    += -flto
 834 LDFLAGS_KERNEL_LTO      = -Wl,-mllvm,-inline-threshold=100
 835 LDFLAGS_KERNEL_GEN      += $(LDFLAGS_KERNEL_LTO) -Wl,-object_path_lto,$(TARGET)/lto.o
 836 LDFLAGS_NOSTRIP_FLAG = -rdynamic
 837 LDFLAGS_KERNEL_STRIP_LTO = -Wl,-dead_strip,-no_dead_strip_inits_and_terms
 838
 839 CFLAGS_NOLTO_FLAG = -fno-lto
 840 else
 841 LDFLAGS_KERNEL_LTO =
 842 LDFLAGS_NOSTRIP_FLAG =
 843 LDFLAGS_KERNEL_STRIP_LTO =
 844 CFLAGS_NOLTO_FLAG =
 845 endif
 846
 847 ifeq ($(BUILD_JSON_COMPILATION_DATABASE),1)
 848 BUILD_DSYM      := 0
 849 DO_CTFMERGE     := 0
 850 KCC             = $(JSONCOMPILATIONDB) $(OBJPATH)/compile_commands.json $(PWD) $< $(CC)
 851 KC++            = $(JSONCOMPILATIONDB) $(OBJPATH)/compile_commands.json $(PWD) $< $(CXX)
 852 S_KCC           = $(JSONCOMPILATIONDB) $(OBJPATH)/compile_commands.json $(PWD) $< $(CC)
 853 STRIP           = true
 854 endif
 855
 856 #
 857 # Default VPATH
 858 #
 859 export VPATH = .:$(SOURCE)
 860
 861
 862
 863 #
 864 # Macros that control installation of kernel and its header files
 865 #
 866 # install flags for header files
 867 #
 868 INSTALL_FLAGS = -c -S -m 0444
 869 DATA_INSTALL_FLAGS = -c -S -m 0644
 870 DATA_INSTALL_FLAGS_RO = -c -S -m 0444
 871 EXEC_INSTALL_FLAGS = -c -S -m 0755
 872
 873 #
 874 # Header file destinations
 875 #
 876
 877 ifeq ($(DRIVERKIT),1)
 878     SDKHEADERSROOT=$(DRIVERKITRUNTIMEROOT)
 879     # only whitelisted headers install outside of the DriverKit Runtime hierarchy
 880     DRIVERKITSDKHEADERSROOT=$(DRIVERKITROOT)
 881     DRIVERKITFRAMEDIR = $(DRIVERKITROOT)/System/Library/Frameworks
 882 endif
 883
 884 FRAMEDIR = $(SDKHEADERSROOT)/System/Library/Frameworks
 885
 886 SINCVERS = B
 887 SINCFRAME = $(FRAMEDIR)/System.framework
 888 SINCDIR = $(SINCFRAME)/Versions/$(SINCVERS)/Headers
 889 SPINCDIR = $(SINCFRAME)/Versions/$(SINCVERS)/PrivateHeaders
 890 SRESDIR = $(SINCFRAME)/Versions/$(SINCVERS)/Resources
 891
 892 ifndef INCDIR
 893     INCDIR = $(SDKHEADERSROOT)/usr/include
 894 endif
 895 ifndef DRIVERKITINCDIR
 896     DRIVERKITINCDIR = $(DRIVERKITSDKHEADERSROOT)/usr/include
 897 endif
 898 ifndef LCLDIR
 899     ifeq ($(LIBKERN_USE_USR_LOCAL_INCLUDE),)
 900         LCLDIR = $(SPINCDIR)
 901     else
 902         LCLDIR = $(SDKHEADERSROOT)/usr/local/include
 903     endif
 904 endif
 905 ifndef DRIVERKITLCLDIR
 906     DRIVERKITLCLDIR = $(DRIVERKITSDKHEADERSROOT)/usr/local/include
 907 endif
 908
 909 KINCVERS = A
 910 KINCFRAME = $(FRAMEDIR)/Kernel.framework
 911 KINCDIR = $(KINCFRAME)/Versions/$(KINCVERS)/Headers
 912 KPINCDIR = $(KINCFRAME)/Versions/$(KINCVERS)/PrivateHeaders
 913 KRESDIR = $(KINCFRAME)/Versions/$(KINCVERS)/Resources
 914
 915 DKIT_INCVERS = A
 916 DKIT_INCFRAME = DriverKit.framework
 917 DKIT_INCDIR = $(DKIT_INCFRAME)/Versions/$(DKIT_INCVERS)/Headers
 918 DKIT_PINCDIR = $(DKIT_INCFRAME)/Versions/$(DKIT_INCVERS)/PrivateHeaders
 919 # DriverKit SDK frameworks use shallow bundle structure
 920 DRIVERKIT_DKIT_INCDIR = $(DKIT_INCFRAME)/Headers
 921 DRIVERKIT_DKIT_PINCDIR = $(DKIT_INCFRAME)/PrivateHeaders
 922
 923 XNU_PRIVATE_UNIFDEF = -UMACH_KERNEL_PRIVATE -UBSD_KERNEL_PRIVATE -UIOKIT_KERNEL_PRIVATE -ULIBKERN_KERNEL_PRIVATE -ULIBSA_KERNEL_PRIVATE -UPEXPERT_KERNEL_PRIVATE -UXNU_KERNEL_PRIVATE
 924
 925
 926 PLATFORM_UNIFDEF = $(foreach x,$(SUPPORTED_PLATFORMS),$(if $(filter $(PLATFORM),$(x)),-DPLATFORM_$(x) $(foreach token,$(PLATFORM_UNIFDEF_BLACKLIST_TOKENS_$(x)),-U$(token)),-UPLATFORM_$(x)))
 927
 928
 929 SPINCFRAME_UNIFDEF  = $(PLATFORM_UNIFDEF) $(XNU_PRIVATE_UNIFDEF) $(SEED_DEFINES) -UKERNEL_PRIVATE -UKERNEL -DPRIVATE -UDRIVERKIT -U_OPEN_SOURCE_ -U__OPEN_SOURCE__
 930 SINCFRAME_UNIFDEF   = $(PLATFORM_UNIFDEF) $(XNU_PRIVATE_UNIFDEF) $(SEED_DEFINES) -UKERNEL_PRIVATE -UKERNEL -UPRIVATE -UDRIVERKIT -D_OPEN_SOURCE_ -D__OPEN_SOURCE__
 931 DKPINCFRAME_UNIFDEF = $(PLATFORM_UNIFDEF) $(XNU_PRIVATE_UNIFDEF) $(SEED_DEFINES) -UKERNEL_PRIVATE -UKERNEL -DPRIVATE -DDRIVERKIT -U_OPEN_SOURCE_ -U__OPEN_SOURCE__
 932 DKINCFRAME_UNIFDEF  = $(PLATFORM_UNIFDEF) $(XNU_PRIVATE_UNIFDEF) $(SEED_DEFINES) -UKERNEL_PRIVATE -UKERNEL -UPRIVATE -DDRIVERKIT -D_OPEN_SOURCE_ -D__OPEN_SOURCE__
 933 KPINCFRAME_UNIFDEF  = $(PLATFORM_UNIFDEF) $(XNU_PRIVATE_UNIFDEF) $(SEED_DEFINES) -DKERNEL_PRIVATE -DKERNEL -DPRIVATE -UDRIVERKIT -U_OPEN_SOURCE_ -U__OPEN_SOURCE__
 934 KINCFRAME_UNIFDEF   = $(PLATFORM_UNIFDEF) $(XNU_PRIVATE_UNIFDEF) $(SEED_DEFINES) -UKERNEL_PRIVATE -DKERNEL -UPRIVATE -UDRIVERKIT -D_OPEN_SOURCE_ -D__OPEN_SOURCE__
 935 DATA_UNIFDEF        = $(PLATFORM_UNIFDEF) $(XNU_PRIVATE_UNIFDEF) $(SEED_DEFINES) -D_OPEN_SOURCE_ -D__OPEN_SOURCE__
 936
 937 #
 938 # Compononent Header file destinations
 939 #
 940 EXPDIR = EXPORT_HDRS/$(COMPONENT)
 941
 942 #
 943 # Strip Flags
 944 #
 945 STRIP_FLAGS_RELEASE     = -S -x
 946 STRIP_FLAGS_DEVELOPMENT = -S
 947 STRIP_FLAGS_KASAN = $(STRIP_FLAGS_DEVELOPMENT)
 948 STRIP_FLAGS_DEBUG       = -S
 949 STRIP_FLAGS_PROFILE     = -S -x
 950
 951 STRIP_FLAGS     = $($(addsuffix $(CURRENT_KERNEL_CONFIG),STRIP_FLAGS_))
 952
 953 #
 954 # dsymutil flags
 955 #
 956 DSYMUTIL_FLAGS_GEN      = --minimize
 957
 958 DSYMUTIL_FLAGS_X86_64   = --arch=x86_64
 959 DSYMUTIL_FLAGS_X86_64H  = --arch=x86_64h
 960 DSYMUTIL_FLAGS_ARM      = --arch=arm
 961 DSYMUTIL_FLAGS_ARM64    =
 962
 963 DSYMUTIL_FLAGS = $(DSYMUTIL_FLAGS_GEN) \
 964         $($(addsuffix $(CURRENT_ARCH_CONFIG),DSYMUTIL_FLAGS_))
 965
 966 #
 967 # Man Page destination
 968 #
 969 MANDIR = /usr/share/man
 970
 971 #
 972 # DEBUG alias location
 973 #
 974 DEVELOPER_EXTRAS_DIR = /AppleInternal/CoreOS/xnu_$(CURRENT_KERNEL_CONFIG_LC)
 975
 976 #
 977 # mach_kernel install location
 978 #
 979 INSTALL_KERNEL_DIR = /
 980
 981 #
 982 # new OS X install location
 983 #
 984 SYSTEM_LIBRARY_KERNELS_DIR = /System/Library/Kernels
 985
 986 #
 987 # File names in DSTROOT
 988 #
 989
 990 ifeq ($(PLATFORM),MacOSX)
 991 KERNEL_FILE_NAME_PREFIX = kernel
 992 else
 993 KERNEL_FILE_NAME_PREFIX = mach
 994 endif
 995
 996 ifeq ($(CURRENT_MACHINE_CONFIG),NONE)
 997 ifeq ($(CURRENT_KERNEL_CONFIG),RELEASE)
 998 KERNEL_FILE_NAME = $(KERNEL_FILE_NAME_PREFIX)
 999 KERNEL_LLDBBOOTSTRAP_NAME = $(KERNEL_FILE_NAME_PREFIX).py
1000 else
1001 KERNEL_FILE_NAME = $(KERNEL_FILE_NAME_PREFIX).$(CURRENT_KERNEL_CONFIG_LC)
1002 KERNEL_LLDBBOOTSTRAP_NAME = $(KERNEL_FILE_NAME_PREFIX).py
1003 endif
1004 else
1005 KERNEL_FILE_NAME = $(KERNEL_FILE_NAME_PREFIX).$(CURRENT_KERNEL_CONFIG_LC).$(CURRENT_MACHINE_CONFIG_LC)
1006 KERNEL_LLDBBOOTSTRAP_NAME = $(KERNEL_FILE_NAME_PREFIX)_$(CURRENT_KERNEL_CONFIG_LC).py
1007 endif
1008
1009 CURRENT_ALIAS_MACHINE_CONFIG = $(word 4,$(subst ^, ,$(CURRENT_BUILD_CONFIG)))
1010 CURRENT_ALIAS_MACHINE_CONFIG_LC = $(shell printf "%s" "$(CURRENT_ALIAS_MACHINE_CONFIG)" | $(TR) A-Z a-z)
1011 ifneq ($(CURRENT_ALIAS_MACHINE_CONFIG),)
1012 ALIAS_FILE_NAME = $(KERNEL_FILE_NAME_PREFIX).$(CURRENT_KERNEL_CONFIG_LC).$(CURRENT_ALIAS_MACHINE_CONFIG_LC)
1013 endif
1014
1015 #
1016 # System.kext pseudo-kext install location
1017 #
1018 INSTALL_EXTENSIONS_DIR = /System/Library/Extensions
1019
1020 #
1021 # KDK location
1022 #
1023 INSTALL_KERNEL_SYM_DIR = /System/Library/Extensions/KDK
1024
1025 #
1026 # Misc. Etc.
1027 #
1028 INSTALL_SHARE_MISC_DIR = /usr/share/misc
1029 INSTALL_DTRACE_SCRIPTS_DIR = /usr/lib/dtrace
1030 INSTALL_DTRACE_LIBEXEC_DIR = /usr/libexec/dtrace
1031
1032 #
1033 # Overrides for XBS build aliases
1034 #
1035 ifneq ($(filter $(RC_ProjectName),xnu_debug),)
1036 INSTALL_KERNEL_DIR := $(DEVELOPER_EXTRAS_DIR)
1037 INSTALL_KERNEL_SYM_DIR := $(DEVELOPER_EXTRAS_DIR)
1038 INSTALL_KERNEL_SYM_TO_KDK = 1
1039 INSTALL_XNU_DEBUG_FILES = 1
1040 else ifneq ($(filter $(SUPPORTED_EMBEDDED_PLATFORMS),$(PLATFORM)),)
1041 INSTALL_KERNEL_SYM_TO_KDK = 1
1042 USE_BINARY_PLIST = 1
1043 else ifneq ($(filter $(SUPPORTED_SIMULATOR_PLATFORMS),$(PLATFORM)),)
1044 USE_BINARY_PLIST = 1
1045 else ifeq ($(PLATFORM),MacOSX)
1046 INSTALL_KERNEL_DIR := $(SYSTEM_LIBRARY_KERNELS_DIR)
1047 INSTALL_KERNEL_SYM_DIR := $(SYSTEM_LIBRARY_KERNELS_DIR)
1048 INSTALL_KERNEL_SYM_TO_KDK = $(if $(filter YES,$(DWARF_DSYM_FILE_SHOULD_ACCOMPANY_PRODUCT)),1,0)
1049 endif
1050
1051 ifneq ($(filter $(RC_ProjectName),xnu_kasan),)
1052 INSTALL_KASAN_ONLY = 1
1053 endif
1054
1055 # vim: set ft=make: