rules.mk

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 #
   3 # Copyright (C) 2006-2010 OpenWrt.org
   4 # Copyright (C) 2016 LEDE Project
   5
   6 ifneq ($(__rules_inc),1)
   7 __rules_inc=1
   8
   9 ifeq ($(DUMP),)
  10   -include $(TOPDIR)/.config
  11 endif
  12 include $(TOPDIR)/include/debug.mk
  13 include $(TOPDIR)/include/verbose.mk
  14
  15 ifneq ($(filter check,$(MAKECMDGOALS)),)
  16 CHECK:=1
  17 DUMP:=1
  18 endif
  19
  20 export TMP_DIR:=$(TOPDIR)/tmp
  21 export TMPDIR:=$(TMP_DIR)
  22
  23 qstrip=$(strip $(subst ",,$(1)))
  24 #"))
  25
  26 empty:=
  27 space:= $(empty) $(empty)
  28 comma:=,
  29 merge=$(subst $(space),,$(1))
  30 confvar=$(shell echo '$(foreach v,$(1),$(v)=$(subst ','\'',$($(v))))' | $(MKHASH) md5)
  31 strip_last=$(patsubst %.$(lastword $(subst .,$(space),$(1))),%,$(1))
  32
  33 paren_left = (
  34 paren_right = )
  35 chars_lower = a b c d e f g h i j k l m n o p q r s t u v w x y z
  36 chars_upper = A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
  37
  38 define sep
  39
  40 endef
  41
  42 define newline
  43
  44
  45 endef
  46
  47 __tr_list = $(join $(join $(1),$(foreach char,$(1),$(comma))),$(2))
  48 __tr_head_stripped = $(subst $(space),,$(foreach cv,$(call __tr_list,$(1),$(2)),$$$(paren_left)subst$(cv)$(comma)))
  49 __tr_head = $(subst $(paren_left)subst,$(paren_left)subst$(space),$(__tr_head_stripped))
  50 __tr_tail = $(subst $(space),,$(foreach cv,$(1),$(paren_right)))
  51 __tr_template = $(__tr_head)$$(1)$(__tr_tail)
  52
  53 $(eval toupper = $(call __tr_template,$(chars_lower),$(chars_upper)))
  54 $(eval tolower = $(call __tr_template,$(chars_upper),$(chars_lower)))
  55
  56 version_abbrev = $(if $(if $(CHECK),,$(DUMP)),$(1),$(shell printf '%.8s' $(1)))
  57
  58 _SINGLE=export MAKEFLAGS=$(space);
  59 CFLAGS:=
  60 ARCH:=$(subst i486,i386,$(subst i586,i386,$(subst i686,i386,$(call qstrip,$(CONFIG_ARCH)))))
  61 ARCH_PACKAGES:=$(call qstrip,$(CONFIG_TARGET_ARCH_PACKAGES))
  62 BOARD:=$(call qstrip,$(CONFIG_TARGET_BOARD))
  63 SUBTARGET:=$(call qstrip,$(CONFIG_TARGET_SUBTARGET))
  64 TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
  65 TARGET_SUFFIX=$(call qstrip,$(CONFIG_TARGET_SUFFIX))
  66 BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
  67 SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
  68 BUILD_SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
  69 NPROC:=$(shell sysctl -n hw.ncpu 2>/dev/null || nproc)
  70 export SHELL:=/usr/bin/env bash
  71
  72 IS_PACKAGE_BUILD := $(if $(filter package/%,$(BUILD_SUBDIR)),1)
  73
  74 OPTIMIZE_FOR_CPU=$(subst i386,i486,$(ARCH))
  75
  76 ifneq (,$(findstring $(ARCH) , aarch64 aarch64_be powerpc ))
  77   FPIC:=-DPIC -fPIC
  78 else
  79   FPIC:=-DPIC -fpic
  80 endif
  81
  82 HOST_FPIC:=-DPIC -fPIC
  83
  84 ARCH_SUFFIX:=$(call qstrip,$(CONFIG_CPU_TYPE))
  85 GCC_ARCH:=
  86
  87 ifneq ($(ARCH_SUFFIX),)
  88   ARCH_SUFFIX:=_$(ARCH_SUFFIX)
  89 endif
  90 ifneq ($(filter -march=armv%,$(TARGET_OPTIMIZATION)),)
  91   GCC_ARCH:=$(patsubst -march=%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
  92 endif
  93 ifdef CONFIG_HAS_SPE_FPU
  94   TARGET_SUFFIX:=$(TARGET_SUFFIX)spe
  95 endif
  96 ifdef CONFIG_MIPS64_ABI
  97   ifneq ($(CONFIG_MIPS64_ABI_O32),y)
  98      ARCH_SUFFIX:=$(ARCH_SUFFIX)_$(call qstrip,$(CONFIG_MIPS64_ABI))
  99   endif
 100 endif
 101
 102 DEFAULT_SUBDIR_TARGETS:=clean download prepare compile update refresh prereq dist distcheck configure check check-depends
 103
 104 define DefaultTargets
 105 $(foreach t,$(DEFAULT_SUBDIR_TARGETS) $(1),
 106   .$(t):
 107   $(t): .$(t)
 108   .PHONY: $(t) .$(t)
 109 )
 110 endef
 111
 112 DL_DIR=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)$(if $(DL_SUBDIR),/$(DL_SUBDIR))
 113 OUTPUT_DIR:=$(if $(call qstrip,$(CONFIG_BINARY_FOLDER)),$(call qstrip,$(CONFIG_BINARY_FOLDER)),$(TOPDIR)/bin)
 114 BIN_DIR:=$(OUTPUT_DIR)/targets/$(BOARD)/$(SUBTARGET)
 115 INCLUDE_DIR:=$(TOPDIR)/include
 116 SCRIPT_DIR:=$(TOPDIR)/scripts
 117 BUILD_DIR_BASE:=$(TOPDIR)/build_dir
 118 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
 119   GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
 120   LIBC:=$(call qstrip,$(CONFIG_LIBC))
 121   REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))
 122   GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux
 123   DIR_SUFFIX:=_$(LIBC)$(if $(CONFIG_arm),_eabi)
 124   BIN_DIR:=$(BIN_DIR)$(if $(CONFIG_USE_MUSL),,-$(LIBC))
 125   TARGET_DIR_NAME = target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
 126   TOOLCHAIN_DIR_NAME = toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
 127 else
 128   ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
 129     GNU_TARGET_NAME=$(call qstrip,$(CONFIG_TARGET_NAME))
 130   else
 131     GNU_TARGET_NAME=$(shell gcc -dumpmachine)
 132   endif
 133   REAL_GNU_TARGET_NAME=$(GNU_TARGET_NAME)
 134   LIBC:=$(call qstrip,$(CONFIG_LIBC))
 135   TARGET_DIR_NAME:=target-$(GNU_TARGET_NAME)_$(LIBC)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
 136   TOOLCHAIN_DIR_NAME:=toolchain-$(GNU_TARGET_NAME)
 137 endif
 138
 139 ifeq ($(or $(CONFIG_EXTERNAL_TOOLCHAIN),$(CONFIG_TARGET_uml)),)
 140   iremap = -f$(if $(CONFIG_REPRODUCIBLE_DEBUG_INFO),file,macro)-prefix-map=$(1)=$(2)
 141 endif
 142
 143 PACKAGE_DIR:=$(BIN_DIR)/packages
 144 PACKAGE_DIR_ALL:=$(TOPDIR)/staging_dir/packages/$(BOARD)
 145 BUILD_DIR:=$(BUILD_DIR_BASE)/$(TARGET_DIR_NAME)
 146 STAGING_DIR:=$(TOPDIR)/staging_dir/$(TARGET_DIR_NAME)
 147 BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/$(TOOLCHAIN_DIR_NAME)
 148 TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/$(TOOLCHAIN_DIR_NAME)
 149 STAMP_DIR:=$(BUILD_DIR)/stamp
 150 STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
 151 TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
 152 TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
 153 STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
 154 STAGING_DIR_IMAGE:=$(STAGING_DIR)/image
 155 BUILD_LOG_DIR:=$(if $(call qstrip,$(CONFIG_BUILD_LOG_DIR)),$(call qstrip,$(CONFIG_BUILD_LOG_DIR)),$(TOPDIR)/logs)
 156 PKG_INFO_DIR := $(STAGING_DIR)/pkginfo
 157
 158 BUILD_DIR_HOST:=$(if $(IS_PACKAGE_BUILD),$(BUILD_DIR_BASE)/hostpkg,$(BUILD_DIR_BASE)/host)
 159 STAGING_DIR_HOST:=$(abspath $(STAGING_DIR)/../host)
 160 STAGING_DIR_HOSTPKG:=$(abspath $(STAGING_DIR)/../hostpkg)
 161
 162 TARGET_PATH:=$(subst $(space),:,$(filter-out .,$(filter-out ./,$(subst :,$(space),$(PATH)))))
 163 TARGET_INIT_PATH:=$(call qstrip,$(CONFIG_TARGET_INIT_PATH))
 164 TARGET_INIT_PATH:=$(if $(TARGET_INIT_PATH),$(TARGET_INIT_PATH),/usr/sbin:/sbin:/usr/bin:/bin)
 165 TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3) $(call qstrip,$(CONFIG_EXTRA_OPTIMIZATION))
 166 TARGET_CXXFLAGS = $(TARGET_CFLAGS)
 167 TARGET_ASFLAGS_DEFAULT = $(TARGET_CFLAGS)
 168 TARGET_ASFLAGS = $(TARGET_ASFLAGS_DEFAULT)
 169 ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
 170 LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
 171 LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
 172 LIBGCC_A=$(realpath $(lastword $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a)))
 173 else
 174 LIBGCC_A=$(lastword $(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a))
 175 LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
 176 endif
 177
 178 ifeq ($(CONFIG_ARCH_64BIT),y)
 179   LIB_SUFFIX:=64
 180 endif
 181
 182 ifndef DUMP
 183   ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
 184     -include $(TOOLCHAIN_DIR)/info.mk
 185     export GCC_HONOUR_COPTS:=0
 186     TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
 187     TOOLCHAIN_ROOT_DIR:=$(TOPDIR)/staging_dir/$(TOOLCHAIN_DIR_NAME)
 188     TOOLCHAIN_BIN_DIRS:=$(TOOLCHAIN_ROOT_DIR)/bin
 189     TOOLCHAIN_INC_DIRS:=$(TOOLCHAIN_ROOT_DIR)/usr/include $(TOOLCHAIN_ROOT_DIR)/include
 190     TOOLCHAIN_LIB_DIRS:=$(TOOLCHAIN_ROOT_DIR)/usr/lib $(TOOLCHAIN_ROOT_DIR)/lib
 191     TARGET_CFLAGS+= -fhonour-copts
 192     ifeq ($(CONFIG_USE_MUSL),y)
 193       TOOLCHAIN_INC_DIRS+= $(TOOLCHAIN_DIR)/include/fortify
 194     endif
 195   else
 196     ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
 197       -include $(TOOLCHAIN_DIR)/info.mk
 198       TARGET_CROSS:=$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX))
 199       TOOLCHAIN_ROOT_DIR:=$(call qstrip,$(CONFIG_TOOLCHAIN_ROOT))
 200       TOOLCHAIN_BIN_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_BIN_PATH)))
 201       TOOLCHAIN_INC_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))
 202       TOOLCHAIN_LIB_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))
 203     endif
 204   endif
 205   ifneq ($(TOOLCHAIN_BIN_DIRS),)
 206     TARGET_PATH:=$(subst $(space),:,$(TOOLCHAIN_BIN_DIRS)):$(TARGET_PATH)
 207   endif
 208   ifneq ($(TOOLCHAIN_INC_DIRS),)
 209     TARGET_CPPFLAGS+= $(patsubst %,-I%,$(TOOLCHAIN_INC_DIRS))
 210   endif
 211   ifneq ($(TOOLCHAIN_LIB_DIRS),)
 212     TARGET_LDFLAGS+= $(patsubst %,-L%,$(TOOLCHAIN_LIB_DIRS))
 213   endif
 214 endif
 215
 216 TARGET_LINKER?=bfd
 217 TARGET_LDFLAGS+= -fuse-ld=$(TARGET_LINKER)
 218
 219 TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(STAGING_DIR_HOSTPKG)/bin:$(TARGET_PATH)
 220
 221 ifeq ($(CONFIG_SOFT_FLOAT),y)
 222   SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
 223   ifeq ($(CONFIG_arm),y)
 224     TARGET_CFLAGS+= -mfloat-abi=soft
 225   else
 226     TARGET_CFLAGS+= -msoft-float
 227   endif
 228 else
 229   SOFT_FLOAT_CONFIG_OPTION:=
 230   ifeq ($(CONFIG_arm),y)
 231     TARGET_CFLAGS+= -mfloat-abi=hard
 232   endif
 233 endif
 234
 235 export ORIG_PATH:=$(if $(ORIG_PATH),$(ORIG_PATH),$(PATH))
 236 export PATH:=$(TARGET_PATH)
 237 export STAGING_DIR STAGING_DIR_HOST STAGING_DIR_HOSTPKG
 238 export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
 239
 240 PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
 241
 242 export PKG_CONFIG
 243
 244 HOSTCC:=$(STAGING_DIR_HOST)/bin/gcc
 245 HOSTCXX:=$(STAGING_DIR_HOST)/bin/g++
 246 HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include $(if $(IS_PACKAGE_BUILD),-I$(STAGING_DIR_HOSTPKG)/include -I$(STAGING_DIR)/host/include)
 247 HOST_CXXFLAGS:=
 248 HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
 249 HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib $(if $(IS_PACKAGE_BUILD),-L$(STAGING_DIR_HOSTPKG)/lib -L$(STAGING_DIR)/host/lib)
 250
 251 BUILD_KEY=$(TOPDIR)/key-build
 252
 253 FAKEROOT:=$(STAGING_DIR_HOST)/bin/fakeroot
 254
 255 TARGET_AR:=$(TARGET_CROSS)gcc-ar
 256 TARGET_RANLIB:=$(TARGET_CROSS)gcc-ranlib
 257 TARGET_NM:=$(TARGET_CROSS)gcc-nm
 258 TARGET_CC:=$(TARGET_CROSS)gcc
 259 TARGET_CXX:=$(TARGET_CROSS)g++
 260 TARGET_LD:=$(TARGET_CROSS)ld.$(TARGET_LINKER)
 261 KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh
 262 FILECMD:=$(STAGING_DIR_HOST)/bin/file
 263 SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
 264 ESED:=$(STAGING_DIR_HOST)/bin/sed -E -i -e
 265 MKHASH:=$(STAGING_DIR_HOST)/bin/mkhash
 266 # MKHASH is used in /scripts, so we export it here.
 267 export MKHASH
 268 CP:=cp -fpR
 269 LN:=ln -sf
 270 XARGS:=xargs -r
 271
 272 BASH:=bash
 273 TAR:=tar
 274 FIND:=find
 275 PATCH:=patch
 276 PYTHON:=python3
 277
 278 ifeq ($(HOST_OS),Darwin)
 279   TRUE:=/usr/bin/env gtrue
 280   FALSE:=/usr/bin/env gfalse
 281 else
 282   TRUE:=/usr/bin/env true
 283   FALSE:=/usr/bin/env false
 284 endif
 285
 286 INSTALL_BIN:=install -m0755
 287 INSTALL_SUID:=install -m4755
 288 INSTALL_DIR:=install -d -m0755
 289 INSTALL_DATA:=install -m0644
 290 INSTALL_CONF:=install -m0600
 291
 292 TARGET_CC_NOCACHE:=$(TARGET_CC)
 293 TARGET_CXX_NOCACHE:=$(TARGET_CXX)
 294 HOSTCC_NOCACHE:=$(HOSTCC)
 295 HOSTCXX_NOCACHE:=$(HOSTCXX)
 296 export TARGET_CC_NOCACHE
 297 export TARGET_CXX_NOCACHE
 298 export HOSTCC_NOCACHE
 299 export HOSTCXX_NOCACHE
 300
 301 ifneq ($(CONFIG_CCACHE),)
 302   TARGET_CC:= ccache $(TARGET_CC)
 303   TARGET_CXX:= ccache $(TARGET_CXX)
 304   HOSTCC:= ccache $(HOSTCC)
 305   HOSTCXX:= ccache $(HOSTCXX)
 306   export CCACHE_BASEDIR:=$(TOPDIR)
 307   export CCACHE_DIR:=$(if $(call qstrip,$(CONFIG_CCACHE_DIR)),$(call qstrip,$(CONFIG_CCACHE_DIR)),$(TOPDIR)/.ccache)
 308   export CCACHE_COMPILERCHECK:=%compiler% -dumpmachine; %compiler% -dumpversion
 309 endif
 310
 311 TARGET_CONFIGURE_OPTS = \
 312   AR="$(TARGET_AR)" \
 313   AS="$(TARGET_CC) -c $(TARGET_ASFLAGS)" \
 314   LD="$(TARGET_LD)" \
 315   NM="$(TARGET_NM)" \
 316   CC="$(TARGET_CC)" \
 317   GCC="$(TARGET_CC)" \
 318   CXX="$(TARGET_CXX)" \
 319   RANLIB="$(TARGET_RANLIB)" \
 320   STRIP=$(TARGET_CROSS)strip \
 321   OBJCOPY=$(TARGET_CROSS)objcopy \
 322   OBJDUMP=$(TARGET_CROSS)objdump \
 323   SIZE=$(TARGET_CROSS)size
 324
 325 # strip an entire directory
 326 ifneq ($(CONFIG_NO_STRIP),)
 327   RSTRIP:=:
 328   STRIP:=:
 329 else
 330   ifneq ($(CONFIG_USE_STRIP),)
 331     STRIP:=$(TARGET_CROSS)strip $(call qstrip,$(CONFIG_STRIP_ARGS))
 332   else
 333     ifneq ($(CONFIG_USE_SSTRIP),)
 334       STRIP:=$(STAGING_DIR_HOST)/bin/sstrip $(if $(CONFIG_SSTRIP_DISCARD_TRAILING_ZEROES),-z)
 335     endif
 336   endif
 337   RSTRIP= \
 338     export CROSS="$(TARGET_CROSS)" \
 339                 $(if $(PKG_BUILD_ID),KEEP_BUILD_ID=1) \
 340                 $(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
 341                 $(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
 342     NM="$(TARGET_CROSS)nm" \
 343     STRIP="$(STRIP)" \
 344     STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
 345     PATCHELF="$(STAGING_DIR_HOST)/bin/patchelf" \
 346     $(SCRIPT_DIR)/rstrip.sh
 347 endif
 348
 349 NINJA = \
 350         MAKEFLAGS="$(MAKE_JOBSERVER)" \
 351         $(STAGING_DIR_HOST)/bin/ninja \
 352                 $(if $(findstring c,$(OPENWRT_VERBOSE)),-v) \
 353                 $(if $(MAKE_JOBSERVER),,-j1)
 354
 355 ifeq ($(CONFIG_IPV6),y)
 356   DISABLE_IPV6:=
 357 else
 358   DISABLE_IPV6:=--disable-ipv6
 359 endif
 360
 361 TAR_OPTIONS:=-xf -
 362
 363 ifeq ($(CONFIG_BUILD_LOG),y)
 364   BUILD_LOG:=1
 365 endif
 366
 367 export BISON_PKGDATADIR:=$(STAGING_DIR_HOST)/share/bison
 368 export HOST_GNULIB_SRCDIR:=$(STAGING_DIR_HOST)/share/gnulib
 369 export M4:=$(STAGING_DIR_HOST)/bin/m4
 370
 371 define shvar
 372 V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
 373 endef
 374
 375 define shexport
 376 export $(call shvar,$(1))=$$(call $(1))
 377 endef
 378
 379 # Execute commands under flock
 380 # $(1) => The shell expression.
 381 # $(2) => The lock name. If not given, the global lock will be used.
 382 ifneq ($(wildcard $(STAGING_DIR_HOST)/bin/flock),)
 383   define locked
 384         SHELL= \
 385         flock \
 386                 $(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
 387                 -c '$(subst ','\'',$(1))'
 388   endef
 389 else
 390   locked=$(1)
 391 endif
 392
 393 # Recursively copy paths into another directory, purge dangling
 394 # symlinks before.
 395 # $(1) => File glob expression
 396 # $(2) => Destination directory
 397 define file_copy
 398         for src_dir in $(sort $(foreach d,$(wildcard $(1)),$(dir $(d)))); do \
 399                 ( cd $$src_dir; find -type f -or -type d ) | \
 400                         ( cd $(2); while :; do \
 401                                 read FILE; \
 402                                 [ -z "$$FILE" ] && break; \
 403                                 [ -L "$$FILE" ] || continue; \
 404                                 echo "Removing symlink $(2)/$$FILE"; \
 405                                 rm -f "$$FILE"; \
 406                         done; ); \
 407         done; \
 408         $(CP) $(1) $(2)
 409 endef
 410
 411 # Calculate sha256sum of any plain file within a given directory
 412 # $(1) => Input directory
 413 # $(2) => If set, recurse into subdirectories
 414 define sha256sums
 415         (cd $(1); find . $(if $(2),,-maxdepth 1) -type f -not -name 'sha256sums' -printf "%P\n" | sort | \
 416                 xargs -r $(MKHASH) -n sha256 | sed -ne 's!^\(.*\) \(.*\)$$!\1 *\2!p' > sha256sums)
 417 endef
 418
 419 # file extension
 420 ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
 421
 422 # Count Git commits of a package
 423 # $(1) => if non-empty: count commits since last ": [uU]pdate to " or ": [bB]ump to " in commit message
 424 define commitcount
 425 $(shell \
 426   if git log -1 >/dev/null 2>/dev/null; then \
 427     if [ -n "$(1)" ]; then \
 428       last_bump="$$(git log --pretty=format:'%h %s' . | \
 429         grep -m 1 -e ': [uU]pdate to ' -e ': [bB]ump to ' | \
 430         cut -f 1 -d ' ')"; \
 431     fi; \
 432     if [ -n "$$last_bump" ]; then \
 433       echo -n $$(($$(git rev-list --count "$$last_bump..HEAD" .) + 1)); \
 434     else \
 435       git rev-list --count HEAD .; \
 436     fi; \
 437   else \
 438     secs="$$(($(SOURCE_DATE_EPOCH) % 86400))"; \
 439     date="$$(date --utc --date="@$(SOURCE_DATE_EPOCH)" "+%y%m%d")"; \
 440     printf '%s.%05d' "$$date" "$$secs"; \
 441   fi; \
 442 )
 443 endef
 444
 445 abi_version_str = $(subst -,,$(subst _,,$(subst .,,$(1))))
 446
 447 COMMITCOUNT = $(if $(DUMP),0,$(call commitcount))
 448 AUTORELEASE = $(if $(DUMP),0,$(call commitcount,1))
 449
 450 all:
 451 FORCE: ;
 452 .PHONY: FORCE
 453
 454 check: FORCE
 455         @true
 456
 457 val.%:
 458         @$(if $(filter undefined,$(origin $*)),\
 459                 echo "$* undefined" >&2, \
 460                 echo '$(subst ','"'"',$($*))' \
 461         )
 462
 463 var.%:
 464         @$(if $(filter undefined,$(origin $*)),\
 465                 echo "$* undefined" >&2, \
 466                 echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
 467         )
 468
 469 endif #__rules_inc