#
# Copyright (C) 2006-2010 OpenWrt.org
# Copyright (C) 2016 LEDE Project
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#

ifneq ($(__rules_inc),1)
__rules_inc=1

ifeq ($(DUMP),)
  -include $(TOPDIR)/.config
endif
include $(TOPDIR)/include/debug.mk
include $(TOPDIR)/include/verbose.mk

export TMP_DIR:=$(TOPDIR)/tmp

qstrip=$(strip $(subst ",,$(1)))
#"))

empty:=
space:= $(empty) $(empty)
comma:=,
merge=$(subst $(space),,$(1))
confvar=$(call merge,$(foreach v,$(1),$(if $($(v)),y,n)))
strip_last=$(patsubst %.$(lastword $(subst .,$(space),$(1))),%,$(1))

paren_left = (
paren_right = )
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
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

define sep

endef

define newline


endef

__tr_list = $(join $(join $(1),$(foreach char,$(1),$(comma))),$(2))
__tr_head_stripped = $(subst $(space),,$(foreach cv,$(call __tr_list,$(1),$(2)),$$$(paren_left)subst$(cv)$(comma)))
__tr_head = $(subst $(paren_left)subst,$(paren_left)subst$(space),$(__tr_head_stripped))
__tr_tail = $(subst $(space),,$(foreach cv,$(1),$(paren_right)))
__tr_template = $(__tr_head)$$(1)$(__tr_tail)

$(eval toupper = $(call __tr_template,$(chars_lower),$(chars_upper)))
$(eval tolower = $(call __tr_template,$(chars_upper),$(chars_lower)))

_SINGLE=export MAKEFLAGS=$(space);
CFLAGS:=
ARCH:=$(subst i486,i386,$(subst i586,i386,$(subst i686,i386,$(call qstrip,$(CONFIG_ARCH)))))
ARCH_PACKAGES:=$(call qstrip,$(CONFIG_TARGET_ARCH_PACKAGES))
BOARD:=$(call qstrip,$(CONFIG_TARGET_BOARD))
SUBTARGET:=$(call qstrip,$(CONFIG_TARGET_SUBTARGET))
TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
export EXTRA_OPTIMIZATION:=$(filter-out -fno-plt,$(call qstrip,$(CONFIG_EXTRA_OPTIMIZATION)))
TARGET_SUFFIX=$(call qstrip,$(CONFIG_TARGET_SUFFIX))
BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
BUILD_SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
export SHELL:=/usr/bin/env bash

IS_PACKAGE_BUILD := $(if $(filter package/%,$(BUILD_SUBDIR)),1)

OPTIMIZE_FOR_CPU=$(subst i386,i486,$(ARCH))

ifeq ($(ARCH),powerpc)
  FPIC:=-fPIC
else
  FPIC:=-fpic
endif

HOST_FPIC:=-fPIC

ARCH_SUFFIX:=$(call qstrip,$(CONFIG_CPU_TYPE))
GCC_ARCH:=

ifneq ($(ARCH_SUFFIX),)
  ARCH_SUFFIX:=_$(ARCH_SUFFIX)
endif
ifneq ($(filter -march=armv%,$(TARGET_OPTIMIZATION)),)
  GCC_ARCH:=$(patsubst -march=%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
endif
ifdef CONFIG_HAS_SPE_FPU
  TARGET_SUFFIX:=$(TARGET_SUFFIX)spe
endif
ifdef CONFIG_MIPS64_ABI
  ifneq ($(CONFIG_MIPS64_ABI_O32),y)
     ARCH_SUFFIX:=$(ARCH_SUFFIX)_$(call qstrip,$(CONFIG_MIPS64_ABI))
  endif
endif

DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)
OUTPUT_DIR:=$(if $(call qstrip,$(CONFIG_BINARY_FOLDER)),$(call qstrip,$(CONFIG_BINARY_FOLDER)),$(TOPDIR)/bin)
BIN_DIR:=$(OUTPUT_DIR)/targets/$(BOARD)/$(SUBTARGET)
INCLUDE_DIR:=$(TOPDIR)/include
SCRIPT_DIR:=$(TOPDIR)/scripts
BUILD_DIR_BASE:=$(TOPDIR)/build_dir
ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
  GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
  LIBC:=$(call qstrip,$(CONFIG_LIBC))
  LIBCV:=$(call qstrip,$(CONFIG_LIBC_VERSION))
  REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))
  GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux
  DIR_SUFFIX:=_$(LIBC)-$(LIBCV)$(if $(CONFIG_arm),_eabi)
  BIN_DIR:=$(BIN_DIR)$(if $(CONFIG_USE_MUSL),,-$(LIBC))
  TARGET_DIR_NAME = target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
  TOOLCHAIN_DIR_NAME = toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
else
  ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
    GNU_TARGET_NAME=$(call qstrip,$(CONFIG_TARGET_NAME))
  else
    GNU_TARGET_NAME=$(shell <style>pre { line-height: 125%; margin: 0; }
td.linenos pre { color: #000000; background-color: #f0f0f0; padding: 0 5px 0 5px; }
span.linenos { color: #000000; background-color: #f0f0f0; padding: 0 5px 0 5px; }
td.linenos pre.special { color: #000000; background-color: #ffffc0; padding: 0 5px 0 5px; }
span.linenos.special { color: #000000; background-color: #ffffc0; padding: 0 5px 0 5px; }
.highlight .hll { background-color: #ffffcc }
.highlight { background: #ffffff; }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFile */
.highlight .c1 { color: #888888 } /* Comment.Single */
.highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */
.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gr { color: #aa0000 } /* Generic.Error */
.highlight .gh { color: #333333 } /* Generic.Heading */
.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #555555 } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #666666 } /* Generic.Subheading */
.highlight .gt { color: #aa0000 } /* Generic.Traceback */
.highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */</style><div class="highlight"><pre><span></span><span class="nv">TARGET_CROSS</span><span class="o">=</span>
<span class="nv">GCC_VERSION</span><span class="o">=</span>unknown
<span class="nv">LIBC_TYPE</span><span class="o">=</span>unknown
<span class="nv">LIBC_URL</span><span class="o">=</span>unknown
<span class="nv">LIBC_VERSION</span><span class="o">=</span>unknown
<span class="nv">LIBC_SO_VERSION</span><span class="o">=</span>unknown
</pre></div>
</code></pre></td></tr></table>
</div> <!-- class=content -->
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</div> <!-- id=cgit -->
</body>
</html>
ET_RANLIB)" \
  STRIP=$(TARGET_CROSS)strip \
  OBJCOPY=$(TARGET_CROSS)objcopy \
  OBJDUMP=$(TARGET_CROSS)objdump \
  SIZE=$(TARGET_CROSS)size

# strip an entire directory
ifneq ($(CONFIG_NO_STRIP),)
  RSTRIP:=:
  STRIP:=:
else
  ifneq ($(CONFIG_USE_STRIP),)
    STRIP:=$(TARGET_CROSS)strip $(call qstrip,$(CONFIG_STRIP_ARGS))
  else
    ifneq ($(CONFIG_USE_SSTRIP),)
      STRIP:=$(STAGING_DIR_HOST)/bin/sstrip
    endif
  endif
  RSTRIP= \
    export CROSS="$(TARGET_CROSS)" \
		$(if $(PKG_BUILD_ID),KEEP_BUILD_ID=1) \
		$(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
		$(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
    NM="$(TARGET_CROSS)nm" \
    STRIP="$(STRIP)" \
    STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
    PATCHELF="$(STAGING_DIR_HOST)/bin/patchelf" \
    $(SCRIPT_DIR)/rstrip.sh
endif

ifeq ($(CONFIG_IPV6),y)
  DISABLE_IPV6:=
else
  DISABLE_IPV6:=--disable-ipv6
endif

TAR_OPTIONS:=-xf -

ifeq ($(CONFIG_BUILD_LOG),y)
  BUILD_LOG:=1
endif

export BISON_PKGDATADIR:=$(STAGING_DIR_HOST)/share/bison
export M4:=$(STAGING_DIR_HOST)/bin/m4

define shvar
V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
endef

define shexport
export $(call shvar,$(1))=$$(call $(1))
endef

define include_mk
$(eval -include $(if $(DUMP),,$(STAGING_DIR)/mk/$(strip $(1))))
endef

# Execute commands under flock
# $(1) => The shell expression.
# $(2) => The lock name. If not given, the global lock will be used.
ifneq ($(wildcard $(STAGING_DIR_HOST)/bin/flock),)
  define locked
	SHELL= \
	flock \
		$(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
		-c '$(subst ','\'',$(1))'
  endef
else
  locked=$(1)
endif

# Recursively copy paths into another directory, purge dangling
# symlinks before.
# $(1) => File glob expression
# $(2) => Destination directory
define file_copy
	for src_dir in $(sort $(foreach d,$(wildcard $(1)),$(dir $(d)))); do \
		( cd $$src_dir; find -type f -or -type d ) | \
			( cd $(2); while :; do \
				read FILE; \
				[ -z "$$FILE" ] && break; \
				[ -L "$$FILE" ] || continue; \
				echo "Removing symlink $(2)/$$FILE"; \
				rm -f "$$FILE"; \
			done; ); \
	done; \
	$(CP) $(1) $(2)
endef

# Calculate sha256sum of any plain file within a given directory
# $(1) => Input directory
define sha256sums
	(cd $(1); find . -maxdepth 1 -type f -not -name 'sha256sums' -printf "%P\n" | sort | \
		xargs openssl dgst -sha256 | sed -ne 's!^SHA256(\(.*\))= \(.*\)$$!\2 *\1!p' > sha256sums)
endef

# file extension
ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))

all:
FORCE: ;
.PHONY: FORCE

val.%:
	@$(if $(filter undefined,$(origin $*)),\
		echo "$* undefined" >&2, \
		echo '$(subst ','"'"',$($*))' \
	)

var.%:
	@$(if $(filter undefined,$(origin $*)),\
		echo "$* undefined" >&2, \
		echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
	)

endif #__rules_inc