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))))' | $(STAGING_DIR_HOST)/bin/mkhash md5)
  31 strip_last=$(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)),$(TOPDIR)/dl)
 113 OUTPUT_DIR:=$(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   ifeq ($(CONFIG_GCC_USE_IREMAP),y)
 141     iremap = -iremap$(1):$(2)
 142   else
 143     iremap = -f$(if $(CONFIG_REPRODUCIBLE_DEBUG_INFO),file,macro)-prefix-map=$(1)=$(2)
 144   endif
 145 endif
 146
 147 PACKAGE_DIR:=$(BIN_DIR)/packages
 148 PACKAGE_DIR_ALL:=$(TOPDIR)/staging_dir/packages/$(BOARD)
 149 BUILD_DIR:=$(BUILD_DIR_BASE)/$(TARGET_DIR_NAME)
 150 STAGING_DIR:=$(TOPDIR)/staging_dir/$(TARGET_DIR_NAME)
 151 BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/$(TOOLCHAIN_DIR_NAME)
 152 TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/$(TOOLCHAIN_DIR_NAME)
 153 STAMP_DIR:=$(BUILD_DIR)/stamp
 154 STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
 155 TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
 156 TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
 157 STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
 158 STAGING_DIR_IMAGE:=$(STAGING_DIR)/image
 159 BUILD_LOG_DIR:=$(if $(call qstrip,$(CONFIG_BUILD_LOG_DIR)),$(call qstrip,$(CONFIG_BUILD_LOG_DIR)),$(TOPDIR)/logs)
 160 PKG_INFO_DIR := $(STAGING_DIR)/pkginfo
 161
 162 BUILD_DIR_HOST:=$(if $(IS_PACKAGE_BUILD),$(BUILD_DIR_BASE)/hostpkg,$(BUILD_DIR_BASE)/host)
 163 STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
 164 STAGING_DIR_HOSTPKG:=$(TOPDIR)/staging_dir/hostpkg
 165
 166 TARGET_PATH:=$(subst $(space),:,$(filter-out .,$(filter-out ./,$(subst :,$(space),$(PATH)))))
 167 TARGET_INIT_PATH:=$(call qstrip,$(CONFIG_TARGET_INIT_PATH))
 168 TARGET_INIT_PATH:=$(if $(TARGET_INIT_PATH),$(TARGET_INIT_PATH),/usr/sbin:/sbin:/usr/bin:/bin)
 169 TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3) $(call qstrip,$(CONFIG_EXTRA_OPTIMIZATION))
 170 TARGET_CXXFLAGS = $(TARGET_CFLAGS)
 171 TARGET_ASFLAGS_DEFAULT = $(TARGET_CFLAGS)
 172 TARGET_ASFLAGS = $(TARGET_ASFLAGS_DEFAULT)
 173 ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
 174 LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
 175 LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
 176 LIBGCC_A=$(realpath $(lastword $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a)))
 177 else
 178 LIBGCC_A=$(lastword $(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a))
 179 LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
 180 endif
 181
 182 ifeq ($(CONFIG_ARCH_64BIT),y)
 183   LIB_SUFFIX:=64
 184 endif
 185
 186 ifndef DUMP
 187   ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
 188     -include $(TOOLCHAIN_DIR)/info.mk
 189     export GCC_HONOUR_COPTS:=0
 190     TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
 191     TARGET_CFLAGS+= -fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result
 192     TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include
 193     ifeq ($(CONFIG_USE_MUSL),y)
 194       TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/include/fortify
 195     endif
 196     TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/include
 197     TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib
 198     TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
 199   else
 200     ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
 201       TARGET_CROSS:=$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX))
 202       TOOLCHAIN_ROOT_DIR:=$(call qstrip,$(CONFIG_TOOLCHAIN_ROOT))
 203       TOOLCHAIN_BIN_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_BIN_PATH)))
 204       TOOLCHAIN_INC_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))
 205       TOOLCHAIN_LIB_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))
 206       ifneq ($(TOOLCHAIN_BIN_DIRS),)
 207         TARGET_PATH:=$(subst $(space),:,$(TOOLCHAIN_BIN_DIRS)):$(TARGET_PATH)
 208       endif
 209       ifneq ($(TOOLCHAIN_INC_DIRS),)
 210         TARGET_CPPFLAGS+= $(patsubst %,-I%,$(TOOLCHAIN_INC_DIRS))
 211       endif
 212       ifneq ($(TOOLCHAIN_LIB_DIRS),)
 213         TARGET_LDFLAGS+= $(patsubst %,-L%,$(TOOLCHAIN_LIB_DIRS))
 214       endif
 215       TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
 216     endif
 217   endif
 218 endif
 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 PATH:=$(TARGET_PATH)
 236 export STAGING_DIR STAGING_DIR_HOST STAGING_DIR_HOSTPKG
 237 export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
 238
 239 PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
 240
 241 export PKG_CONFIG
 242
 243 HOSTCC:=gcc
 244 HOSTCXX:=g++
 245 HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include $(if $(IS_PACKAGE_BUILD),-I$(STAGING_DIR_HOSTPKG)/include -I$(STAGING_DIR)/host/include)
 246 HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
 247 HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib $(if $(IS_PACKAGE_BUILD),-L$(STAGING_DIR_HOSTPKG)/lib -L$(STAGING_DIR)/host/lib)
 248
 249 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
 250   TARGET_AR:=$(TARGET_CROSS)gcc-ar
 251   TARGET_RANLIB:=$(TARGET_CROSS)gcc-ranlib
 252   TARGET_NM:=$(TARGET_CROSS)gcc-nm
 253 else
 254   TARGET_AR:=$(TARGET_CROSS)ar
 255   TARGET_RANLIB:=$(TARGET_CROSS)ranlib
 256   TARGET_NM:=$(TARGET_CROSS)nm
 257 endif
 258
 259 BUILD_KEY=$(TOPDIR)/key-build
 260
 261 FAKEROOT:=$(STAGING_DIR_HOST)/bin/fakeroot
 262
 263 TARGET_CC:=$(TARGET_CROSS)gcc
 264 TARGET_CXX:=$(TARGET_CROSS)g++
 265 KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh
 266 SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
 267 ESED:=$(STAGING_DIR_HOST)/bin/sed -E -i -e
 268 # DOWNLOAD_CHECK_CERTIFICATE is used in /scripts, so we export it here.
 269 DOWNLOAD_CHECK_CERTIFICATE:=$(CONFIG_DOWNLOAD_CHECK_CERTIFICATE)
 270 export DOWNLOAD_CHECK_CERTIFICATE
 271 CP:=cp -fpR
 272 LN:=ln -sf
 273 XARGS:=xargs -r
 274
 275 BASH:=bash
 276 TAR:=tar
 277 FIND:=find
 278 PATCH:=patch
 279 PYTHON:=python
 280
 281 INSTALL_BIN:=install -m0755
 282 INSTALL_SUID:=install -m4755
 283 INSTALL_DIR:=install -d -m0755
 284 INSTALL_DATA:=install -m0644
 285 INSTALL_CONF:=install -m0600
 286
 287 TARGET_CC_NOCACHE:=$(TARGET_CC)
 288 TARGET_CXX_NOCACHE:=$(TARGET_CXX)
 289 HOSTCC_NOCACHE:=$(HOSTCC)
 290 HOSTCXX_NOCACHE:=$(HOSTCXX)
 291 export TARGET_CC_NOCACHE
 292 export TARGET_CXX_NOCACHE
 293 export HOSTCC_NOCACHE
 294 export HOSTCXX_NOCACHE
 295
 296 ifneq ($(CONFIG_CCACHE),)
 297   TARGET_CC:= ccache_cc
 298   TARGET_CXX:= ccache_cxx
 299   HOSTCC:= ccache $(HOSTCC)
 300   HOSTCXX:= ccache $(HOSTCXX)
 301   export CCACHE_BASEDIR:=$(TOPDIR)
 302   export CCACHE_DIR:=$(if $(call qstrip,$(CONFIG_CCACHE_DIR)),$(call qstrip,$(CONFIG_CCACHE_DIR)),$(TOPDIR)/.ccache)
 303   export CCACHE_COMPILERCHECK:=%compiler% -dumpmachine; %compiler% -dumpversion
 304 endif
 305
 306 TARGET_CONFIGURE_OPTS = \
 307   AR="$(TARGET_AR)" \
 308   AS="$(TARGET_CC) -c $(TARGET_ASFLAGS)" \
 309   LD=$(TARGET_CROSS)ld \
 310   NM="$(TARGET_NM)" \
 311   CC="$(TARGET_CC)" \
 312   GCC="$(TARGET_CC)" \
 313   CXX="$(TARGET_CXX)" \
 314   RANLIB="$(TARGET_RANLIB)" \
 315   STRIP=$(TARGET_CROSS)strip \
 316   OBJCOPY=$(TARGET_CROSS)objcopy \
 317   OBJDUMP=$(TARGET_CROSS)objdump \
 318   SIZE=$(TARGET_CROSS)size
 319
 320 # strip an entire directory
 321 ifneq ($(CONFIG_NO_STRIP),)
 322   RSTRIP:=:
 323   STRIP:=:
 324 else
 325   ifneq ($(CONFIG_USE_STRIP),)
 326     STRIP:=$(TARGET_CROSS)strip $(call qstrip,$(CONFIG_STRIP_ARGS))
 327   else
 328     ifneq ($(CONFIG_USE_SSTRIP),)
 329       STRIP:=$(STAGING_DIR_HOST)/bin/sstrip $(call qstrip,$(CONFIG_SSTRIP_ARGS))
 330     endif
 331   endif
 332   RSTRIP= \
 333     export CROSS="$(TARGET_CROSS)" \
 334                 $(if $(PKG_BUILD_ID),KEEP_BUILD_ID=1) \
 335                 $(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
 336                 $(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
 337     NM="$(TARGET_CROSS)nm" \
 338     STRIP="$(STRIP)" \
 339     STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
 340     PATCHELF="$(STAGING_DIR_HOST)/bin/patchelf" \
 341     $(SCRIPT_DIR)/rstrip.sh
 342 endif
 343
 344 ifeq ($(CONFIG_IPV6),y)
 345   DISABLE_IPV6:=
 346 else
 347   DISABLE_IPV6:=--disable-ipv6
 348 endif
 349
 350 TAR_OPTIONS:=-xf -
 351
 352 ifeq ($(CONFIG_BUILD_LOG),y)
 353   BUILD_LOG:=1
 354 endif
 355
 356 export BISON_PKGDATADIR:=$(STAGING_DIR_HOST)/share/bison
 357 export M4:=$(STAGING_DIR_HOST)/bin/m4
 358
 359 define shvar
 360 V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
 361 endef
 362
 363 define shexport
 364 export $(call shvar,$(1))=$$(call $(1))
 365 endef
 366
 367 # Execute commands under flock
 368 # $(1) => The shell expression.
 369 # $(2) => The lock name. If not given, the global lock will be used.
 370 ifneq ($(wildcard $(STAGING_DIR_HOST)/bin/flock),)
 371   define locked
 372         SHELL= \
 373         flock \
 374                 $(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
 375                 -c '$(subst ','\'',$(1))'
 376   endef
 377 else
 378   locked=$(1)
 379 endif
 380
 381 # Recursively copy paths into another directory, purge dangling
 382 # symlinks before.
 383 # $(1) => File glob expression
 384 # $(2) => Destination directory
 385 define file_copy
 386         for src_dir in $(sort $(foreach d,$(wildcard $(1)),$(dir $(d)))); do \
 387                 ( cd $$src_dir; find -type f -or -type d ) | \
 388                         ( cd $(2); while :; do \
 389                                 read FILE; \
 390                                 [ -z "$$FILE" ] && break; \
 391                                 [ -L "$$FILE" ] || continue; \
 392                                 echo "Removing symlink $(2)/$$FILE"; \
 393                                 rm -f "$$FILE"; \
 394                         done; ); \
 395         done; \
 396         $(CP) $(1) $(2)
 397 endef
 398
 399 # Calculate sha256sum of any plain file within a given directory
 400 # $(1) => Input directory
 401 # $(2) => If set, recurse into subdirectories
 402 define sha256sums
 403         (cd $(1); find . $(if $(2),,-maxdepth 1) -type f -not -name 'sha256sums' -printf "%P\n" | sort | \
 404                 xargs -r $(STAGING_DIR_HOST)/bin/mkhash -n sha256 | sed -ne 's!^\(.*\) \(.*\)$$!\1 *\2!p' > sha256sums)
 405 endef
 406
 407 # file extension
 408 ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
 409
 410 # Count Git commits of a package
 411 # $(1) => if non-empty: count commits since last ": [uU]pdate to " or ": [bB]ump to " in commit message
 412 define commitcount
 413 $(shell \
 414   if git log -1 >/dev/null 2>/dev/null; then \
 415     if [ -n "$(1)" ]; then \
 416       last_bump="$$(git log --pretty=format:'%h %s' . | \
 417         grep --max-count=1 -e ': [uU]pdate to ' -e ': [bB]ump to ' | \
 418         cut -f 1 -d ' ')"; \
 419     fi; \
 420     if [ -n "$$last_bump" ]; then \
 421       echo -n $$(($$(git rev-list --count "$$last_bump..HEAD" .) + 1)); \
 422     else \
 423       git rev-list --count HEAD .; \
 424     fi; \
 425   else \
 426     secs="$$(($(SOURCE_DATE_EPOCH) % 86400))"; \
 427     date="$$(date --utc --date="@$(SOURCE_DATE_EPOCH)" "+%y%m%d")"; \
 428     printf '%s.%05d' "$$date" "$$secs"; \
 429   fi; \
 430 )
 431 endef
 432
 433 abi_version_str = $(subst -,,$(subst _,,$(subst .,,$(1))))
 434
 435 COMMITCOUNT = $(if $(DUMP),0,$(call commitcount))
 436 AUTORELEASE = $(if $(DUMP),0,$(call commitcount,1))
 437
 438 all:
 439 FORCE: ;
 440 .PHONY: FORCE
 441
 442 check: FORCE
 443         @true
 444
 445 val.%:
 446         @$(if $(filter undefined,$(origin $*)),\
 447                 echo "$* undefined" >&2, \
 448                 echo '$(subst ','"'"',$($*))' \
 449         )
 450
 451 var.%:
 452         @$(if $(filter undefined,$(origin $*)),\
 453                 echo "$* undefined" >&2, \
 454                 echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
 455         )
 456
 457 endif #__rules_inc