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